专利摘要:
Method and apparatus (100) for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101). The method comprises the steps of turning (S1) the container (101) to remove the flexible bag (50), receiving (S2) the flexible bag (50) on an intermediate conveyor (60), waiting (S3) for a period of time (T1) until the flexible bag (50) is at rest, and obtain (S4) the position (P1) of a side edge (53) of the flexible bag (50). It also comprises the step of moving (S5) an output conveyor (70) located behind the intermediate conveyor (60) according to a direction of advance (A), by a transverse movement (M1) perpendicular to the direction of advance (A), a distance established as a function of the position obtained in the previous stage (S4) until centering the exit conveyor (70) and the flexible bag (50). It also comprises the step of transporting (S6) the flexible bag (50) from the intermediate conveyor (60) to the output conveyor (70), and moving (S7) the output conveyor (70) by a second transverse movement (M2) to a desired starting position. (Machine-translation by Google Translate, not legally binding)
公开号:ES2724774A1
申请号:ES201830230
申请日:2018-03-08
公开日:2019-09-16
发明作者:Olmos Telesforo González
申请人:Telesforo Gonzalez Maquinaria SL;
IPC主号:
专利说明:

[0001]
[0002]
[0003]
[0004] SECTOR OF THE TECHNIQUE
[0005]
[0006] The present invention presents a method and an apparatus for the extraction and transport of flexible bags filled with a flowing material and contained in containers. Examples of flowing materials are oils, crushed fruit pulp, fruit concentrate, honey, beverages, dairy, drugstore, among others. The flexible bag is contained in a container that protects it from breakage, tearing, weathering, and other circumstances that could damage the contained product.
[0007]
[0008] BACKGROUND OF THE INVENTION
[0009]
[0010] Flexible bags can be used extensively to contain flowing products, that is, liquid products and / or tend to flow. Examples of the wide range of products contained in these flexible bags are products of the fruit and vegetable industry, products of the chemical and pharmaceutical industry, industrial products in general, products of the automotive industry, etc. Flexible bags are contained within a container for storage and transport to the destination plant. By way of illustration, the containers used may be cylindrical metal containers or octagonal corrugated cardboard containers, known as octabines. The octabines comprise a tubular body, a bottom assembled at the lower mouth of the body, and a lid assembled at the upper mouth of the body. Usually, flexible bags vary between 100 and 1,000 kg or more.
[0011]
[0012] This weight and size together with the flexible nature of the bag and the tendency to flow of the product make the flexible bags difficult to handle during and after the extraction of the flexible bag from the container that contains it at the destination plant. Due to these factors, if the flexible bag is handled manually it can be easily perforated, torn or torn. Therefore, it is necessary to machine the extraction of flexible bags contained in containers to avoid such inconveniences.
[0013] The destination plant receives a plurality of containers, preferably arranged on a pallet, where each container contains a flexible bag. The orientation of one of said flexible bags with respect to another may be different. This is because during the process of filling said flexible bags the bags are filled inside the container or inserted into the container randomly without the operator paying attention to the orientation of the flexible bag with respect to the container and / or the pallet During the transport and handling stage, the orientation of the container on the pallet can also vary, and therefore, the orientation of the flexible bags.
[0014]
[0015] Generally, flexible bags comprise at least four edges that form an essentially rectangular shape. Said four edges comprise a top edge, a bottom edge, and two side edges. The side edges join the upper edge and the lower edge. In the immediate vicinity of the upper edge is a drain and fill plug. The orientation of the flexible bag contained in the container can be known by inspecting the orientation of the upper edge of said bags, which is generally in the upper mouth of the container.
[0016]
[0017] The orientation of the flexible bag is a critical factor in mechanizing the process of extracting and transporting said flexible bags contained in containers. Thus, if said bag remained centered on the conveyor after its removal from the container, manual manipulation of the flexible bag and / or the installation of parts or mechanisms that drag it to center it would be avoided. Manual manipulation, parts or mechanisms to center the flexible bag on the conveyor drag the flexible bag on the surface of the conveyor and tend to pierce, tear or tear it.
[0018]
[0019] Document ES2651155A1 shows a method and an apparatus for transferring flexible bags from a first container to a second container. The apparatus comprises a turning mechanism that tilts a turning holder around a turning shaft supported in the apparatus chassis. The first container containing a flexible bag is placed and flipped into the flip-up holder. Likewise, the apparatus comprises a conveyor provided with a delivery and reception end. Said conveyor receives the flexible bag by actuating its drive means to remove the bag. In the flip holder a second container Then, the drive means of the conveyor are operated in the opposite direction to introduce the flexible bag into the second container.
[0020]
[0021] A drawback of the method and apparatus of document ES2651155A1 is that after tilting the dump holder and the flexible bag, the flexible bag is usually not centered on the conveyor according to its transport direction. That is, the flexible bag turns laterally to one of the two sides of the conveyor. Such tipping occurs to a greater or lesser extent depending on the internal stresses generated by the flowing product contained inside the bag during the turning and receiving of the flexible bag on the conveyor. Although the flexible bag is not centered on the conveyor, it is possible to reinsert it correctly into the second container. However, if, after removing the bag, it was desired to transport the flexible bag by means of the apparatus of document ES2651155A1 a relatively long distance, for example of the order of several meters or tens of meters, it would require the installation of side barriers on the conveyor for its transport. However, installing anti-fall side barriers would lead to the flexible bag suffering from tears, perforations or tears.
[0022]
[0023] Documents US5209339A and ES2291393T3 describe a transport system for multiplying one or more incoming product flows into two or more product outflows, consisting of an inlet conveyor that transports the one or more product flows, a transfer conveyor that It is movable in a transverse direction and is arranged to receive products from the input conveyor, and an output conveyor arranged to receive products from the transfer conveyor. Document ES2291393T3 describes the method of said transport system.
[0024]
[0025] In US5209339A the transfer conveyor is a conveyor with multiple belts, which is mounted on guided rails and arranged to move along the rails guided transversely to the direction of transport of the products along it. The transfer conveyor moves between two extreme positions to move the transfer conveyor from one extreme position to the other. The transfer conveyor is subject to a simple harmonic movement that gives smooth acceleration and deceleration. The transfer conveyor moves along the guided rails by means of a guide spindle moved by a stepper motor controlled by a control unit.
[0026] EP1099633B1 describes a method and an apparatus for orienting an article of flexible walls such as a snack package. The method comprises presenting the article to a pattern detector, for example a CCD camera connected to a processor, and detecting a pattern on the surface of the article. The detected pattern is compared with a series of predetermined patterns that represent the respective orientations of the article to identify the orientation of the presented article. When the orientation identified by the pattern detector is not a required orientation, the article is rotated in a manner that depends on the orientation identified, so that the article adopts the required orientation.
[0027]
[0028] A drawback of document EP1099633B1 is that it acts against the package by means of mechanisms such as tweezers, fingers and diverters that, in conjunction with the direction of advance of the conveyor, drag the package on the surface of the conveyor and modify the orientation of the package on the conveyor. This is not applicable to the technical problem of the present invention, where the flexible bags are of a large size and weight and the material contained is flowing, whereby tears, tears and perforations in the flexible bags can occur if the mechanisms are operated that drag the flexible bag over the conveyor. Also due to the flowing nature of the product contained, a series of predetermined patterns cannot be configured in order to determine the actuators to act to position the package in the desired orientation.
[0029]
[0030] The same drawback-related issue applies to documents ES2651155A1, ES2651134A1 and US20030015399A1. Documents ES2651155A1 and ES2651134A1 describe an apparatus for transferring flexible bags comprising a lateral flexible bag pusher installed on both sides of the chassis of a conveyor. Document US20030015399A1 describes an apparatus and a method for reorienting articles comprising a conveyor belt, a static piece that contacts the article by contact and a pair of movable doors between two positions. Again, the use of parts or mechanisms that drag the flexible bag on the surface of the conveyor causes tears, tears and perforations on said bag.
[0031]
[0032] A method and device for the extraction and transport of bags is needed Containers flexible that solve the inconveniences related to the flowing nature of the product contained in the bags. Said flowing nature causes the lateral overturning of the flexible balls after their extraction and their offset on a conveyor, as well as folds and deformations of said flexible bag that lead to perforations, tears or tears thereof.
[0033]
[0034] EXPLANATION OF THE INVENTION
[0035]
[0036] The present invention solves the drawbacks described above.
[0037]
[0038] According to a first aspect, the present invention presents a method for the extraction and transport of flexible bags filled with a flowing material The flexible bags are contained in containers.
[0039]
[0040] Said containers used may be cylindrical metal containers or cardboard containers, such as those described in the state of the art.
[0041]
[0042] Said flexible bags comprise at one end a base that supports at the bottom of the containers, at another opposite end an opening element adjacent to an upper opening of said container, and lateral edges that extend from said end to its other end.
[0043]
[0044] The method comprises the step of flipping the container to remove the flexible bag by gravity with said opening element in front.
[0045]
[0046] Likewise, the method comprises the step of receiving said flexible bag on an intermediate conveyor with a forward direction.
[0047]
[0048] Also, the method comprises the stage of waiting for a period of time. The period of time elapses at least after the stage of receiving until the moment when the flexible bag is at rest by its own weight on the intermediate conveyor. When the flexible bag is at rest, it defines, in a plan view, an essentially rectangular shape with a front edge, a rear edge and two side edges. The lateral edges are essentially parallel to the direction of advance. Another period of time greater than said defined period of time falls within the scope of the present invention, for example, a period that begins immediately after the turning stage.
[0049]
[0050] In addition, the method comprises, after the waiting stage, the step of obtaining the position of a side edge of the flexible bag on the intermediate conveyor according to the direction perpendicular to the direction of travel. The side edge is equivalent to one side or side of the flexible bag. This position may vary depending on the flowing material contained and its size, and the placement and orientation of the flexible bag inside the container. As a result, the side edge of the flexible bag turns a few times closer and sometimes further away from, for example, a side of the intermediate conveyor surface. Also as a result, the flexible bag turns to one side or the other of the intermediate conveyor.
[0051] Likewise, the method comprises the step of moving an output conveyor, located behind the intermediate conveyor, by a transverse movement perpendicular to the direction of travel. The exit conveyor moves an established distance depending on the position of the lateral edge obtained in the previous stage until essentially centering the exit conveyor and the flexible bag according to the direction of travel. That is, essentially the longitudinal symmetry axis of the exit conveyor and the flexible bag are aligned, which are parallel to the direction of travel. Said transverse movement varies from one cycle of extraction and transport to another even when it is the same flexible bag and the same product contained, since it depends on the position of the lateral edge.
[0052]
[0053] Likewise, the method comprises the step of transporting the flexible bag from the intermediate conveyor to the output conveyor by a displacement according to the direction of travel.
[0054]
[0055] Also the method comprises after the transport stage, the step of moving the output conveyor by a second transverse movement perpendicular to the direction of travel to a desired transverse exit position.
[0056]
[0057] Thus, the inconveniences related to the flowing nature of the product contained in the bags for its extraction and transport are mitigated. A robust method is obtained against the lateral overturning of the flexible balls and their offset on a conveyor and against the folds and deformations of said flexible bag. These factors lead to perforations, tears or tears of the flexible bag.
[0058]
[0059] Preferably, in the desired transverse exit position, the flexible bag is centered with respect to the axis of longitudinal symmetry of the conveyors that are part of the target plant.
[0060]
[0061] Preferably, the method lacks the step of dragging the flexible bag by means of parts or mechanisms on the transport surface of the intermediate conveyor 60 or the transport surface of the output conveyor. Thus, the Contact friction between said transport surfaces and the surface of the flexible bag which together with the flowing nature of the contained material leads to tears, perforations and / or tears of the flexible bag. Therefore, a technical characteristic is included in this paragraph through a “negative limitation” or “exclusion”.
[0062]
[0063] Also preferably, the method comprises. during the waiting stage, the stage of the side dump of the flexible bag by its own weight on the intermediate conveyor towards either side of the intermediate conveyor as a result of the turning stage. Thus, the flexible bag is allowed to free itself from the internal stresses caused by the flowing product against the walls of the flexible bag, which prevents folds and deformations of the walls of the flexible bag.
[0064]
[0065] Preferably, the step of obtaining comprises acquiring the position of a side edge of the flexible bag with respect to the intermediate conveyor by means of a sensor operatively connected to a controlling device. Optionally, the method comprises, after the step of obtaining, the step of calculating the position of the longitudinal symmetry axis of the flexible bag on the intermediate conveyor from the position and the width of the bag. The value of the bag width a preset and known value. This calculation is done to center the exit conveyor and the flexible bag in the move stage.
[0066]
[0067] In addition to the previous paragraph, the stage of obtaining comprises the stage of facing two sensors on the intermediate conveyor according to the direction perpendicular to the direction of advance. The two sensors are operatively connected to the controller device. The stage of obtaining further comprises the stage of obtaining the position of the other side edge of the flexible bag. Thus each of the two sensors obtains the position of a lateral edge. In an alternative of this option, the method comprises, after the stage of obtaining, the stage of calculating the width of the bag from the position of one side edge, the other position of the other side edge, and the distance between the two sensors faced. After this, the method comprises the step of calculating the position of the longitudinal symmetry axis of the flexible bag on the intermediate conveyor from the bag width and any of the lateral edge positions, to center the exit conveyor and the flexible bag in the move stage.
[0068]
[0069] Also preferably, the step of obtaining comprises acquiring the pattern of the flexible bag and the position of said pattern with respect to a reference point by means of a sensor that is an integral part of a chamber, which is connected Operationally to the controller device. In this option, the method comprises after the step of obtaining, the step of calculating the position of the longitudinal symmetry axis of the flexible bag on the intermediate conveyor from the obtained pattern and the position of said pattern with respect to the reference point. This calculation is done to center the exit conveyor and the flexible bag in the move stage.
[0070]
[0071] Optionally, the method comprises the stage of presetting a value for the period of time before the waiting stage. This method can be used, for example, by setting a fixed period of time through a human machine interface or a programmable automaton.
[0072]
[0073] Alternatively, the waiting stage comprises ending the period of time with the detection of the rest of the flexible bag by the sensor operatively connected to the controlling device. The sensor generates a signal indicative of the rest or movement of the flexible bag that the controller device processes. This alternative method to the previous paragraph may be advantageous for making the machine robust in the face of changes in the weight and size of the flexible bag or changes in the flowing nature of the product contained, such as viscosity.
[0074]
[0075] Optionally, the method comprises, before the turning stage, the step of transporting the full container by means of an input conveyor driven by an input conveyor actuator. Likewise, after the turning stage it comprises the stage of transporting the empty container by means of the input conveyor driven by the input conveyor actuator.
[0076]
[0077] Optionally, the flipping stage comprises placing the first container on a flip-up holder of a turning device and flipping said flip-up bracket at an angle equal to or greater than 90 degrees by means of a turning actuator device of the turning device. The method also comprises, before the turning stage, the step of transporting the full container from a feed conveyor to the input conveyor. Likewise, the method comprises, after the turning stage, the step of turning the turning container again with the empty container in the opposite direction to the previous turning stage. After this, the method comprises the step of placing the empty container on the inlet conveyor. Next, the method comprises the step of transporting the empty container from the inlet conveyor to a container conveyor.
[0078]
[0079] According to a second aspect, the present invention presents an apparatus for the extraction and transport of flexible bags filled with a flowing material and contained in containers Said containers and said flexible bags are those described in the first aspect of the invention.
[0080]
[0081] The apparatus comprises a turning device. The turning device comprises a turning receptacle where the full container is in use, and a turning actuator device. The flip actuator device drives the flip device in use and flips the flip holder and the full container disposed therein between a vertical position and a flipped discharge position to remove the flexible bag by gravity with said opening element in front.
[0082]
[0083] The apparatus further comprises a transport station. The transport station comprises an intermediate conveyor, an output conveyor located behind the intermediate conveyor according to a forward direction, and a lateral displacement device.
[0084]
[0085] The intermediate conveyor comprises a receiving end adjacent to the turning device. The intermediate conveyor receives the flexible bag removed from the container in use. The intermediate conveyor further comprises an intermediate conveyor actuator that drives the intermediate conveyor in use according to a forward direction, and a delivery end, opposite the receiving end, adjacent and facing an input end of an output conveyor.
[0086]
[0087] The output conveyor comprises a movable support, an input end supported on the support, and an output conveyor actuator that drives the output conveyor in use according to the direction of travel. The output conveyor also comprises an output end opposite the input end and supported on the support.
[0088]
[0089] The lateral displacement device comprises a second output conveyor actuator with a fixed part relative to the ground and a movable part connected to the movable support. The movable part of the second output conveyor actuator moves the output conveyor in use by transverse movements perpendicular to the forward direction. The lateral displacement device also comprises linear guidance means parallel to the transverse movements and fixedly connected to the ground. In addition, lateral displacement device comprises conjugated linear guidance means connected to the movable support and which fit in the linear guidance means.
[0090] Likewise, the apparatus comprises a controlling device, which has the flip actuator device, the intermediate conveyor actuator, the output conveyor actuator, and the second output conveyor actuator operatively connected to its output terminals.
[0091]
[0092] The controlling device has an electromechanical device connected to its input terminal that detects in use the turned off position of the dump holder.
[0093]
[0094] In addition, the controlling device has a sensor connected to another input terminal that obtains the position of a side edge of the flexible bag on the intermediate conveyor after waiting for a period of time. The period of time in use begins after the flip-up holder reaches the flipped discharge position indicated by the electromechanical device. The period of time ends after the flexible bag is at rest by its own weight on the intermediate conveyor. In addition, the sensor sends the position of the side edge obtained to the controlling device to move the output conveyor an established distance based on said position of the side edge.
[0095]
[0096] Preferably, the transport station lacks parts or mechanisms that drag the flexible bag over the transport surface of the intermediate conveyor or the transport surface of the output conveyor. A technical characteristic is included here through a “negative limitation” or “exclusion”.
[0097]
[0098] Preferably, said sensor is selected from one of the following options: a distance sensor or a sensor that is an integral part of a camera.
[0099]
[0100] Also preferably, the apparatus comprises a fixed frame with respect to the ground on which the turning device and the transport station are supported.
[0101] Optionally, the apparatus comprises an input conveyor. The input conveyor comprises an input conveyor actuator that drives the input conveyor in use according to a second direction of travel. In addition, the input conveyor comprises a plurality of rollers perpendicular to the second forward direction and separated from each other. The plurality of rollers defines a support surface and elongated holes. In addition, in this option the apparatus comprises a feed conveyor, located before the input conveyor according to the second direction of travel. Feed conveyor It comprises a feed conveyor actuator that drives the feed conveyor in use according to the second direction of travel. Likewise, in this option the apparatus comprises a container conveyor, located after the input conveyor according to the second direction of advance. The container conveyor comprises a container conveyor actuator that drives the container conveyor in use according to the second direction of travel. Likewise, in this option, the apparatus comprises a base of the turn-over holder of the turn-over holder comprising a plurality of elongated and parallel plates. In the vertical position of the container, the base of the dump holder is below the bearing surface of the rollers and the container rests on the inlet conveyor. In the flipped discharge position the base of the swinging holder is above the support surface of the rollers and the container rests on the base of the turning vessel.
[0102]
[0103] The term "operatively connected" includes, among others, connecting via physical wiring, communication buses, multi-wire cables, fiber optic cables, as well as connecting wirelessly through a communications network.
[0104]
[0105] The expression "controller device" may comprise a programmable automaton (PLC), a processor, or a control unit, among others.
[0106]
[0107] BRIEF DESCRIPTION OF THE DRAWINGS
[0108]
[0109] To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, a set of drawings is attached as an integral part of said description, where illustrative and non-limiting nature has been represented. next:
[0110]
[0111] Fig. 1 shows a flow chart with the essential steps of the method of the present invention;
[0112]
[0113] Fig. 2 is a plan view of the apparatus of the present invention prior to the turning stage;
[0114]
[0115] Fig. 3 is another plan view of the apparatus of the present invention prior to the turning stage and after the stage of Fig. 2;
[0116]
[0117] Fig. 4 is a rear top perspective view of Fig. 3, where a detail IV is indicated;
[0118]
[0119] Fig. 5 is the detail view IV of Fig. 4;
[0120] Fig. 6 is an elevation view of the apparatus of the present invention during the turning stage;
[0121]
[0122] Fig. 7 is a cropped plan view of the apparatus of the present invention after the receiving stage;
[0123]
[0124] Fig. 8 is a cropped plan view of the apparatus of the present invention after the wait stage;
[0125]
[0126] Fig. 9 is a cropped plan view of the apparatus of the present invention after the step of moving the output conveyor by a transverse movement, wherein the output conveyor is shown transparently;
[0127]
[0128] Fig. 10 is a cropped plan view of the apparatus of the present invention after the stage of transporting the flexible bag from the intermediate conveyor to the output conveyor;
[0129]
[0130] Fig. 11 is a front top perspective view of Fig. 3, where a detail V is indicated;
[0131]
[0132] Fig. 12 is the detail view V of Fig. 11;
[0133]
[0134] Fig. 13 is a cropped plan view of the apparatus of the present invention after the step of moving the output conveyor by a second transverse movement;
[0135]
[0136] Fig. 14 is a cropped plan view of a second embodiment of the apparatus of the present invention after the wait stage; Y
[0137]
[0138] Fig. 15 is a diagram of the elements operatively connected downstream of the output terminals of the controller device according to the first and second embodiment of the apparatus of the present invention;
[0139]
[0140] Fig. 16 is a diagram of the electromechanical elements and automatisms operatively connected to the inputs and outputs of the controller device according to a first embodiment of the apparatus; Y
[0141]
[0142] Fig. 17 is a diagram of the electromechanical elements and automatisms operatively connected to the inputs and outputs of the controller device according to a second embodiment of the apparatus.
[0143]
[0144] The elements represented in the figures are listed below:
[0145]
[0146] 5. caliper
[0147] 80. container conveyor
[0148] 81. container conveyor actuator
[0149] 85. pallet
[0150] 90. turning device
[0151] 91. dump holder
[0152] 91a. dump holder branch
[0153] 91b. dump holder base
[0154] 91c. hinges
[0155] 92. flip actuator device
[0156] 93. second engine
[0157] 94. first engine
[0158] 95. second output shaft
[0159] 96. zipper
[0160] 97. pinion
[0161] 98. first output tree
[0162] 99. secondary support
[0163] 100. apparatus
[0164] 101. container
[0165] 102. body
[0166] 103. background
[0167] 200. conveyor to process line
[0168] 201. process line conveyor actuator
[0169] A. forward direction
[0170] A2. second direction of advance
[0171] C50 longitudinal axis of symmetry of the flexible bag
[0172] C70 Longitudinal symmetry axis of the C200 output conveyor. Longitudinal symmetry axis of the conveyor to process line C75. servo motor controller
[0173] D1 displacement
[0174] D2 auxiliary displacement
[0175] D23 distance between the two sensors
[0176] K61 intermediate conveyor actuator contactor
[0177] K71 output conveyor actuator contactor
[0178] M1. transverse movement
[0179] M2 second transverse movement
[0180] P1. position
[0181] P2 other position
[0182] R, S, T. Three phases of power supply
[0183] T1 time frame
[0184] TR1. transformer
[0185] U93 Second motor frequency inverter
[0186] U94 Frequency inverter of the first motor
[0187] W. flexible bag width
[0188]
[0189] DETAILED EXHIBITION OF REALIZATION MODES / EXAMPLES
[0190]
[0191] According to a first aspect, the present invention provides a method for the extraction and transport of flexible bags filled with a flowing material. Flexible bags are contained in containers.
[0192]
[0193] Fig. 1 shows a flow chart with the essential steps of the method of the present invention. Figs. 2 to 13 show sequentially the first embodiment of the method for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101).
[0194]
[0195] In Figs. 2 to 4 it can be seen that said containers (101) are octagonal and of corrugated cardboard, known as octabines. The containers (101) comprise a tubular body (102), a bottom (103) assembled in the lower mouth of the tubular body. The containers (101) are open at the top.
[0196]
[0197] Figs. 2 to 4 show that said flexible bag (50) comprises at one end a base (51) that supports at the bottom (103) of the containers (101), at another opposite end an opening element (52) adjacent to an opening upper of said container (101), and lateral edges (53) extending from said end to the other opposite end.
[0198]
[0199] Prior to the stage shown in Fig. 2, a clamp (5) takes a container (101) arranged on a pallet (85) and filled with the flexible bag (50), and moves it until it is arranged on the feed conveyor ( twenty). After this, Figs. 2 and 3 show that the method comprises the step of transporting the filled container (101) from a feed conveyor (20) to an inlet conveyor (12).
[0200]
[0201] Figs. 1, 2 and 3 show that the method comprises, before the turning stage (S1), the stage of transporting the filled container (101) by means of an input conveyor (12) driven by an input conveyor actuator (13).
[0202] Figs. 3 to 6 show that the method continues with the step of turning (S1) the container (101) to remove the flexible bag (50) by gravity with the opening element (52) in front. In Figs. 3 to 5, the first container (101) has been placed on a tumbling receptacle (91) of a turning device (90). In Fig. 6 to 8, said turning holder (91) has been turned over an angle greater than 90 degrees by means of a turning actuator device (92) of the turning device (90). The turning actuator device (92) of the example is described in the second aspect of the invention.
[0203]
[0204] Figs. 1, 6 and 7 illustrate that after the turning stage (S1), the method comprises the receiving stage (S2). Fig. 6 shows an instant before the receiving stage (S2) and Fig. 7 shows a later instant the receiving stage (S2). In Fig. 6, the intermediate conveyor actuator (61) is operated during the reception stage and prints an auxiliary displacement (D2) to the flexible bag (50) for gentle removal of the container (101). In Fig. 7, said flexible bag (50) is received on an intermediate conveyor (60). The auxiliary movement (D2) is carried out according to the direction of travel (A).
[0205]
[0206] Fig. 1 shows that after the receiving stage (S2), the method comprises the stage of waiting (S3) for a period of time (T1). In this first embodiment, the period of time (T1) elapses from the instant of Fig. 6, immediately after the turning stage (S2), until the instant of Fig. 8. In Fig. 7 the flexible bag (50) is not yet at rest. In Fig. 8, the flexible bag (50) remains at rest by its own weight on the intermediate conveyor (60). In the plan view of Fig. 8 the flexible bag (50) defines an essentially rectangular shape with a front edge, a rear edge and two side edges (53). The lateral edges (53) are essentially parallel to the direction of advance (A). The opening element (52) is located on the front edge and the rear edge is opposite the front edge.
[0207]
[0208] This first method embodiment comprises the step of presetting a value for the period of time (T1) before the waiting stage (S3). That is, in the controller device (22) embodied in an automaton of Fig. 16 it is programmed by means of programming functions so that the period of time (T1) of Fig. 1 is started before the wait stage (S3 ). This point is explained in detail in the second aspect of the invention.
[0209]
[0210] Comparing Figs. 7 and 8, it is observed that the method comprises, during the wait stage (S3), the side dump stage of the flexible bag (50) by its own weight on the intermediate conveyor (60) towards one side of the intermediate conveyor (60) as a result of the turning stage (S1). Fig. 7 shows the flexible bag (50) before the side dump stage, while Fig. 8 shows the flexible bag (50) after the side dump stage.
[0211]
[0212] Figs. 1 and 8 show that after the wait stage (S3), the method comprises the step of obtaining (S4) the position (P1) of a side edge (53) of the flexible bag (50) on the intermediate conveyor (60) according to the direction perpendicular to the direction of advance (A). In Figs. 8, 15 and 16, the step of obtaining (S4) comprises acquiring the pattern of the flexible bag (50) and the position of said pattern with respect to a reference point by means of a sensor (23) that is an integral part of a chamber ( 24), which is operatively connected to a controller device (22). Said sensor (23), camera (24) and controller device (22) of Figs. 8, 15 and 16 are explained in the second aspect of the invention.
[0213]
[0214] In this first embodiment, the method comprises following the step of obtaining (S4) of Fig. 1, the step of calculating the position of the longitudinal symmetry axis of the flexible bag (C50) of Fig. 8 on the intermediate conveyor ( 60) from the pattern obtained and the position of said pattern with respect to the intermediate conveyor (60). This calculation is performed to center the output conveyor (70) and the flexible bag (50) in the subsequent stage of moving (S5).
[0215]
[0216] Figs. 1 and 8 and 9 show that the method comprises the step of moving (S5) the output conveyor (70), located behind the intermediate conveyor (60). The output conveyor (70) is moved by a transverse movement (M1) perpendicular to the direction of travel (A), a distance established according to the position of the lateral edge (53) obtained in the previous stage (S4) until it is centered essentially the exit conveyor (70) and the flexible bag (50) according to the direction of travel (A). That is, in Fig. 9 the longitudinal symmetry axis of the output conveyor (C70) and the flexible bag (C50) are essentially aligned. Said symmetry axes (C50, C70) are parallel to the direction of advance (A).
[0217]
[0218] In Fig. 8 the output conveyor (70) is offset from the flexible bag (50). By means of the transverse movement (M1) of Fig. 8, the situation of Fig. 9 is passed, where the exit conveyor (70) and flexible bag (50) are aligned.
[0219]
[0220] In Figs. 2 to 4 it is shown that there are two different orientations of the respective flexible bags (50) contained in the containers (101) and arranged on the pallet (85). As a result, the position of the lateral edges (53) and the magnitude of the transverse movement (M1) is significantly changing from one cycle to another.
[0221]
[0222] In Figs. 1, 9 and 10 it is shown that after the move stage (S5), the method comprises the step of transporting (S6) the flexible bag (50) from the intermediate conveyor (60) to the output conveyor (70) by a displacement (D1) according to the direction of advance (A). Fig. 9 is prior to the transport stage (S6) while Fig. 10 is subsequent to the transport stage (S6).
[0223]
[0224] In Figs. 1, 10 and 11 it is shown that after the transport stage (S6), the method includes the step of moving (S7) the output conveyor (70) by a second transverse movement (M2) perpendicular to the forward direction (A ) to a desired transverse exit position. Fig. 10 is prior to the move stage (S7), while Fig. 13 is after the transport stage (S6). In Fig. 13 the desired transverse exit position is centered with a process line conveyor (200), operable by means of a process line conveyor actuator (201) that is part of the target plant. In Fig. 13 it is shown that the desired transverse output position coincides with the longitudinal symmetry axis of the process line conveyor (C200).
[0225]
[0226] Going back to Figs. 1, 8 and 9, it is shown that the method comprises, after the flip stage (S1), the step of flipping the flip holder (91) again with the empty container (101) in the opposite direction to the step of flip (S1). In Fig. 9 the empty container (101) is in an upright position. After this, the method comprises the step of placing the empty container (101) on the inlet conveyor (12), as shown in Fig. 9. After this point, in Figs. 8 and 9, it is shown that the The method comprises the step of transporting the empty container (101) by the input conveyor (12) driven by the input conveyor actuator (13). Next, the method comprises the step of transporting the empty container (101) from the inlet conveyor (12) to a container conveyor (80), which is shown in Figs. 2 and 9.
[0227]
[0228] In Figs. 1 to 13, 15 and 16 it is shown that the method lacks the step of dragging the flexible bag (50) by means of parts or mechanisms on the transport surface of the intermediate conveyor (60) or the transport surface of the output conveyor (70 ). Figs. 2 and 4 show the first and second transport surface (62, 72). The first transport surface (62) forms an integral part of the intermediate conveyor (60), while the second transport surface (72) forms an integral part of the output conveyor (72). Therefore, the flexible bag (50) does not drag on said first and second transport surface (62, 72). Thus, contact friction between said transport surfaces and the surface of the flexible bag is avoided, which together with the flowing nature of the contained material leads to tears, perforations and / or tears of the flexible bag.
[0229]
[0230] According to a second embodiment of the method, the method includes the steps of flipping (51), receiving (S2), waiting (S3), moving (S5), transporting (S6) and moving (S7) described in the first embodiment. In this second embodiment, the wait stage (S3) comprises ending the period of time (T1) of Fig. 1 with the detection of the rest of the flexible bag (50) of Fig. 14 by one of the two sensor (23) operatively connected to the controller device (22) of Fig. 17. In Fig. 17, the sensor (23) generates a signal indicative of the rest or movement of the flexible bag (50) that processes the controller device ( 22).
[0231]
[0232] The method comprises in this second embodiment, after the step of obtaining (S4) of Fig. 1, the step of calculating the position of the longitudinal symmetry axis of the flexible bag (C50) on the intermediate conveyor (60) from the position (P1) and the width of the bag (W). These variables are shown in Fig. 14. The bag width value (W) a preset and known value. This calculation is performed to center the output conveyor (70) and the flexible bag (50) in the move stage (S5).
[0233]
[0234] According to a third embodiment, the method includes the steps of flipping (S1), receiving (52), waiting (S3), moving (S5), transporting (S6) and moving (S7) described in the first embodiment. In Fig. 14, it is shown that the step of obtaining (S4) of this third embodiment comprises the step of facing two sensors (23) away on the intermediate conveyor (60) according to the direction perpendicular to the direction of advance (A ). In Figs. 15 and 17, the two sensors (23) are operatively connected to the controller device (22). In Fig. 14, it is shown that the stage of obtaining (S4) further comprises the stage of obtaining the position of the other lateral edge (53). Thus, a sensor (23) away from Figs. 14 and 17 obtains the position of a lateral edge (53). The other distance sensor (23) of Figs. 14 and 17 obtains the position of the other lateral edge (53). In this third embodiment, the method comprises after the step of obtaining (S4), the step of calculating the width of the bag (W) from the position (P1) of a side edge (53), the other position (P2 ) of the other side edge (53), and the distance between the two facing sensors (D23) of Fig. 14. After this, the The method comprises the step of calculating the position of the longitudinal symmetry axis of the flexible bag (C50) on the intermediate conveyor (60) from the bag width (W) and any of the positions (P1, P2) of the side edge ( 53), to center the exit conveyor (70) and the flexible bag (50) in the move stage (S5).
[0235]
[0236] According to a fourth embodiment, the method includes the steps and features described in the third embodiment except that the side edge (53) and the other side edge (53) are obtained by a sensor (23) of the electrical type that is an integral part of a chamber (24) CCD of Figs. 2 to 13, 15 and 16.
[0237]
[0238] According to a second aspect, the present invention presents an apparatus for the extraction and transport of flexible bags filled with a flowing material and contained in containers. In Figs. 2 to 4 it can be seen that said containers (101) and said flexible bags (50) are as described in the first aspect of the invention.
[0239]
[0240] Figs. 2 to 13, 15 and 16 show a first embodiment of the apparatus of the present invention. Figs. 14, 15 and 17 show a second embodiment of the apparatus of the present invention.
[0241]
[0242] Figs. 4, 6, 11 and 12 show that the apparatus (100) comprises a turning device (90). The turning device (90) comprises a turning holder (91) where the filled container (101) is arranged in use, and a turning actuator device (92). The turning actuator device (92) drives the turning device (90) in use and flips the turning holder (91) and the full container (101) disposed therein between a vertical position (Fig. 11) and a turned position of discharge (Fig. 6) to remove the flexible bag (50) by gravity with said opening element (52) in front.
[0243]
[0244] In Figs. 11 and 12 it is shown that the turning actuator device (92) comprises a first and second motors (94, 93). The first motor (94) has a fixed part with respect to the ground and fixed in the frame (10), and a first output shaft (98) having two pinions (97) fixed. The turning actuator device (92) further comprises two pinions (97) that engage in respective zippers (96), and a secondary support (99) in which said two zippers (96) are fixed. Thus, the first motor (94) moves the secondary support (99) in use vertically. The second motor (93) has a fixed part fixed on the secondary support (99) and a second output shaft (95) fixedly fixed to hinges (91c) of the turning bracket (91) and turns in I use the dump holder (91) between a flipped discharge position (Fig. 6) and a vertical position (Fig. 11).
[0245]
[0246] Fig. 2 shows that the apparatus (100) further comprises a transport station (15). The transport station (15) comprises an intermediate conveyor (60), an output conveyor (70) located behind the intermediate conveyor (60) according to a forward direction (A), and a lateral displacement device (74).
[0247]
[0248] In Figs. 2, 4 and 11 the intermediate conveyor (60) comprises a receiving end, adjacent and facing the turning device (90). The intermediate conveyor (60) receives the flexible bag (50) removed from the container (101) in use. The intermediate conveyor (60) further comprises an intermediate conveyor actuator (61) which drives the intermediate conveyor (60) in use according to a forward direction (A). The intermediate conveyor (60) comprises a delivery end, opposite the receiving end, adjacent and facing an input end of an output conveyor (70).
[0249]
[0250] In Figs. 4, 6 and 9 the output conveyor (70) comprises a movable support (73), an input end supported on the support (73), and an output conveyor actuator (71), embodied in an electric motor, which drive the output conveyor (70) in use according to the direction of travel (A). The output conveyor (70) also comprises an output end opposite the input end and supported on the support (73).
[0251]
[0252] Following in Figs. 4, 6 and 9, it is detailed that the lateral displacement device (74) comprises a second output conveyor actuator (75), materialized in a servo motor, with a fixed part relative to the ground and a movable part materialized in an axis output that is connected to the movable support (73). The movable part of the second output conveyor actuator (75) displaces in use the output conveyor (70) transverse movements (M1, M2) perpendicular to the direction of travel (A). The lateral displacement device (74) also comprises linear guidance means (76) materialized in linear guides parallel to the transverse movements (M1, M2) and fixedly connected to the ground. In addition, lateral displacement device (74) comprises conjugated linear guidance means (77), materialized in linear skates, fixedly connected to the movable support (73) and which fit in the linear guidance means (76). The lateral displacement device (74) further comprises a spindle (78) and nuts (79) fixed on the movable support (73). Figs. 2, 4 and 9 show that the part movable of said servo motor has said spindle (78) fixed. The movable support (73) has said two threaded nuts (79), through which the spindle (78) is inserted. A spindle (78) is a threaded shaft, which when turned in one direction or another by means of the servo motor, produces the linear movement of the nuts (79) and the support (73) movable in one direction or another along linear guides
[0253]
[0254] In Figs. 2, 6, 15 and 16 it is shown that the apparatus (100) comprises a controller device (22), which has the flip actuator device (92), the intermediate conveyor actuator (61) operatively connected to its output terminals, the output conveyor actuator (71), and the second output conveyor actuator (75). The controller device (22) of Fig. 16 is a programmable automaton or PLC with relay output.
[0255]
[0256] In Fig. 16 are detailed two coils that are an integral part of two respective contactors (K61, K71). The coil of each contactor (K61, K71) opens or closes the contacts of said contactor (K61, K71). The contacts of the contactors (K61, K71) are shown in Fig. 15. For example, when the contacts of the intermediate conveyor actuator contactor (K61) are closed, said contactor (K61) drives the intermediate conveyor actuator (61 ). In Fig. 15 the intermediate conveyor actuator (61) and the output conveyor (71) are electric motors.
[0257]
[0258] In Fig. 16 the PLC has a servo motor controller (C75) connected to its output terminals. In Fig. 15 it is shown that said servo motor controller (C75) governs the operation of the second output conveyor actuator (75), which is a servo motor.
[0259]
[0260] In Fig. 16, the PLC has a respective frequency converter connected to each output terminal (U94, U93). In Fig. 15 it is shown that said frequency inverters (U94, U93) govern the operation of the first and second electric motor (94, 93), respectively. Said electric motors (94, 93) form an integral part of the turning actuator device (92).
[0261]
[0262] In Fig. 15 the three phases from the power supply (R, S, T), and the protection elements such as circuit breakers and circuit breakers are detailed. In Fig. 15, the contacts of the contactors (K61, K71), the servo motor controller (C75) and the frequency inverters (U93, U94) are connected downstream of the protection elements.
[0263] In Fig. 16, the controller device (22) has an electromechanical device (26) materialized in an encoder or "encoder" (due to the English language term) of the rotational type that detects the position in use position connected to its input terminals unloaded from the dump holder (91) by detecting the angle rotated by the second output shaft (95) of the second motor (93), which is an integral part of the turning actuator device (92), as shown in Figs. 6 and 12.
[0264]
[0265] In Fig. 16, the controller device (22) has connected to another input terminal a sensor (23) sensor that is an integral part of a CCD camera (24). In Figs.
[0266] 8 and 16 show that the sensor (23) integrated in the chamber (24) obtains the position of a side edge (53) of the flexible bag (50) on the intermediate conveyor (60) after waiting for a period of time (T1 ). The sensor (23) in the example is an electronic sensor called CCD (docking device) that captures images. Thus, the pattern of the flexible bag (50), its lateral edges (53) and the position of the lateral edges with respect to the intermediate conveyor (60) is obtained. The period of time (T1) in use is started after the flip-up holder (91) reaches the flipped discharge position indicated by the electromechanical device (26). The period of time (T1) ends after the flexible bag (50) is at rest by its own weight on the intermediate conveyor (60). When the flexible bag is at rest, the position of the flexible bag pattern (50) found from the images captured by the CCD sensor (23) does not vary substantially. Therefore, when the pattern does not move from its position, the sensor (23) instructs the controlling device (22) to generate a signal indicative of said rest. Furthermore, with the position of the lateral edge (53) obtained, the controlling device (22) drives the second actuator of the output conveyor (75) to move the output conveyor (70) an established distance based on said position of the lateral edge (53).
[0267]
[0268] In Fig. 16, a 24V AC power supply for the PLC, rotary encoder and CCD camera with sensor is shown. This power is obtained downstream of a transformer (TR1) that converts the mains voltage of two phase conductors (R, S) into a control or control voltage (24VAC, 0VAC).
[0269]
[0270] In this first embodiment of the apparatus (100), Figs. 2 to 13, 15 and 16 show that the transport station (15) lacks parts or mechanisms that drag the flexible bag (50) onto the transport surface of the intermediate conveyor (60) or the transport surface of the output conveyor (70). Figs. 2 and 4 show the first and second transport surface (62, 72). The first transport surface (62) forms an integral part of the intermediate conveyor (60), while the second transport surface (72) forms an integral part of the output conveyor (72). Therefore, the flexible bag (50) does not drag on said first and second transport surface (62, 72).
[0271]
[0272] In Figs. 2 to 13 the apparatus (100) comprises a fixed frame (10) with respect to the ground on which the turning device (90) and the transport station (15) are supported.
[0273] In Figs. 2 and 11 it is shown that the apparatus (100) comprises an input conveyor (12). The input conveyor (12) comprises an input conveyor actuator (13) embodied in an electric motor. The input conveyor actuator (13) drives the input conveyor (12) in use according to a second feed direction (A2). The second direction of advance (A2) is perpendicular to the direction of advance (A).
[0274]
[0275] Figs. 4 and 5 show that the input conveyor (12) comprises a plurality of rollers (16) perpendicular to the second forward direction (A2) and separated from each other. The plurality of rollers (16) defines a support surface and elongated holes (17).
[0276]
[0277] Figs. 2 and 3 show that the apparatus (100) comprises a feed conveyor (20), located before the input conveyor (12) according to the second forward direction (A2). The feed conveyor (20) comprises a feed conveyor actuator (21) that drives the feed conveyor (20) in use according to the second feed direction (A2).
[0278]
[0279] Following in Figs. 2 and 3, the apparatus (100) comprises a container conveyor (80), located after the inlet conveyor (12) according to the second forward direction (A2). The container conveyor (80) comprises a container conveyor actuator (81) embodied in an electric motor. The container conveyor actuator (81) drives the container conveyor (80) in use according to the second feed direction (A2).
[0280]
[0281] Figs. 5 to 8 show that the apparatus (100) comprises a dump holder base (91b) of the dump holder (91) comprising a plurality of elongate plates parallel to each other. In the vertical position of the container (101) of Fig. 5, the base of the tumbling receptacle (91b) is below the bearing surface of the rollers (16) and the container (101) rest on the inlet conveyor (12). In the flipped discharge position of Figs. 6 to 8 the base of the dump holder (91b) is above the bearing surface of the rollers (16) and the container (101) rests on the base of the dump holder (91b). In Fig. 6 it can be seen that the dump holder (91) is "L" shaped, with a dump holder branch (91a) perpendicular to the base of the dump holder (91b).
[0282]
[0283] In Figs. 4 and 5 it is shown that the apparatus (100) further comprises a stop (40) which is operated in use by a stop actuator (41) to stop the advance of the full container (101). Stopper (40) and stopper actuator (41) are supported on an auxiliary holder support (31). The auxiliary support of the holder (31) is supported on the base of the swing holder (91b) and moves in solidarity with it (Figs. 4 to 6).
[0284]
[0285] In Figs. 4 and 5 it is shown that the device (100) further comprises a clamp device (30), which comprises a clamp actuator (32), with a fixed part and a moving part. The fixed part of the clamp actuator (32) is supported on the auxiliary holder support (31) and its movable part is connected to a clamp (34). The clamp device (30) further comprises a clamp (34) that moves in use between a rest position and a retention position in which it holds the container (101).
[0286]
[0287] A second embodiment of the apparatus (100) is shown in Figs. 14, 15 and 17. The second embodiment comprises the technical characteristics of the first embodiment of the apparatus, except for the differences described below.
[0288]
[0289] In Fig. 17, the sensor (23) connected to the input terminals of the controller device (22) is a distance sensor. In Figs. 14 and 17 show that the controller device (22) has two distance sensors (23) connected to each other facing a distance (D23).
[0290]
[0291] In Fig. 17 the electromechanical device (26) connected to the input terminals of the controller device (22) is a sensor selected from the following: a limit switch, a magnetic sensor, a photocell, an inductive sensor and / or capacitive sensor.
权利要求:
Claims (15)
[1]
1. Method for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101), wherein said flexible bag (50) comprises at one end a base (51) that rests on the bottom ( 103) of the containers (101), at another opposite end an opening element (52) adjacent to an upper opening of said container (101), and side edges (53) extending from said end to its other end, characterized in that it comprises the stages of:
- turn (S1) the container (101) to remove the flexible bag (50) by gravity with said opening element (52) in front;
- receiving (S2) said flexible bag (50) on an intermediate conveyor (60) with a forward direction (A);
- wait (S3) for a period of time (T1), which elapses at least after the receiving stage (S2) until the moment when the flexible bag (50) is at rest by its own weight on the intermediate conveyor (60 ) defining, in a plan view, an essentially rectangular shape with a front edge, a rear edge and two side edges (53), the side edges (53) being essentially parallel to the direction of travel (A);
- obtain (S4) the position (P1) of a side edge (53) of the flexible bag (50) on the intermediate conveyor (60) according to the direction perpendicular to the direction of advance (A), after the wait stage ( S3);
- move (S5) an output conveyor (70) located behind the intermediate conveyor (60) according to a forward direction (A), by a transverse movement (M1) perpendicular to the forward direction (A), a distance set at function of the position of the lateral edge (53) obtained in the previous stage (S4) until essentially centering the exit conveyor (70) and the flexible bag (50) according to the direction of travel (A);
- transport (S6) the flexible bag (50) from the intermediate conveyor (60) to the output conveyor (70) by means of a displacement (D1) according to the direction of travel (A); Y
- move (S7) the output conveyor (70) by a second transverse movement (M2) perpendicular to the direction of travel (A) to a desired transverse output position, after the transport stage (S6).
[2]
2. Method for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to claim 1, characterized in that it lacks the step of dragging the flexible bag (50) by means of parts or mechanisms on the transport surface of the intermediate conveyor (60) or the transport surface of the output conveyor (70).
[3]
3. Method for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to claim 1 or 2, characterized in that it comprises, during the waiting stage (S3), the dump stage side of the flexible bag (50) by its own weight on the intermediate conveyor (60) towards either side of the intermediate conveyor (60) due to the turning stage (S1).
[4]
4. Method for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to any of the preceding claims, characterized in that the step of obtaining (S4) comprises acquiring the position of a lateral edge (53) of the flexible bag (50) with respect to the intermediate conveyor (60) by means of a sensor (23) operatively connected to a controller device (22).
[5]
5. Method for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to any of the preceding claims, characterized in that the step of obtaining (S4) comprises acquiring the pattern of the flexible bag (50) and the position of said pattern with respect to a reference point by means of a sensor (23) that is an integral part of a camera (24), which is operatively connected to the controlling device (22).
[6]
Method for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to any of the preceding claims, characterized in that it comprises the step of presetting a value for the period of time (T1) before the wait stage (S3).
[7]
7. Method for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to any of claims 4 or 5, characterized in that the waiting stage (S3) comprises ending the period of time (T1) with the detection of the rest of the flexible bag (50) by the sensor (23) operatively connected to the controller device (22), which generates a signal indicative of the rest or movement of the flexible bag (50).
[8]
Method for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to any of the preceding claims, characterized in that before the turning stage (S1) comprises the stage of transporting the container (101) filled by an input conveyor (12) driven by an input conveyor actuator (13), and after the turning stage (S1) comprises the stage of transporting the empty container (101) by the conveyor input (12) operated by the input conveyor actuator (13).
[9]
9. Method for extracting and transporting flexible bags (50) filled with a flowing material and contained in containers (101) according to claim 8, characterized in that the turning stage (S1) comprises placing the first container (101) on a holder of turning (91) of a turning device (90) and turning said turning holder (91) at an angle equal to or greater than 90 degrees by means of a turning actuator device (92) of the turning device (90)
and because he understands
- before the turning stage (S1), the stage of transporting the filled container (101) from a feed conveyor (20) to the input conveyor (12);
- after the flipping stage (S1), the step of flipping the flip holder (91) again with the empty container (101) in the opposite direction to the flipping stage;
- after this, the step of placing the empty container (101) on the inlet conveyor (12);
- and then, the step of transporting the empty container (101) from the inlet conveyor (12) to a container conveyor (80).
[10]
10. Apparatus (100) for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101), wherein said flexible bag (50) comprises at one end a base (51) which supports on the bottom (103) of the containers (101), at another opposite end an opening element (52) adjacent to an upper opening of said container (101), and laterals extending from said end to its other end, characterized because it includes:
- a turning device (90) comprising:
- a dump holder (91) where the full container (101) is disposed in use, and
- a flip actuator device (92) that drives the flip device (90) in use and flips the flip holder (91) and the full container (101) disposed therein between a vertical position and a flipped discharge position for remove the flexible bag (50) by gravity with said opening element (52) in front;
- a transport station (15) comprising an intermediate conveyor (60), an output conveyor (70) located behind the intermediate conveyor (60) according to a forward direction (A), and a lateral displacement device (74) ;
- comprising the intermediate conveyor (60):
- a receiving end, adjacent to the turning device (90), which receives in use the flexible bag (50) removed from the container (101),
- an intermediate conveyor actuator (61) that drives the intermediate conveyor (60) in use according to a forward direction (A), and
- a delivery end, opposite the receiving end, adjacent and facing an input end of an output conveyor (70);
- comprising the output conveyor (70):
- a movable support (73);
- an input end supported on the support (73);
- an output conveyor actuator (71) that drives the output conveyor (70) in use according to the direction of travel (A), and
- an outlet end opposite the input end and supported on the support (73);
- and comprising the lateral displacement device (74):
- a second output conveyor actuator (75) with a fixed part relative to the ground and a movable part connected to the movable support (73), which displaces in use the output conveyor (70) perpendicular transverse movements (M1, M2) to the forward direction (A);
- linear guide means (76) parallel to the transverse movements (M1, M2) and fixedly connected to the ground; Y
- conjugated linear guidance means (77) connected to the movable support (73) and which fit into the linear guidance means (76);
- and a controller device (22), which is operatively connected to its output terminals:
- the turning actuator device (92),
- the intermediate conveyor actuator (61),
- the output conveyor actuator (71), and
- the second output conveyor actuator (75);
and that it has connected to its input terminals:
- an electromechanical device (26) that detects in use the turned off position of the dump holder (91); Y
- a sensor (23) that:
- Obtains the position of a side edge (53) of the flexible bag (50) on the intermediate conveyor (60) after waiting for a period of time (T1), which in use is started after the dump holder (91 ) reaches the turned discharge position indicated by the electromechanical device (26) and ends in use after the flexible bag (50) rests at its own weight on the intermediate conveyor (60), and
- sends the position of the lateral edge (53) obtained to the controlling device (22) to move the output conveyor (70) a distance established according to said position of the lateral edge (53).
[11]
11. Apparatus (100) for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to claim 10, characterized in that the transport station (15) lacks dragging parts or mechanisms the flexible bag (50) on the transport surface of the intermediate conveyor (60) or the transport surface of the output conveyor (70).
[12]
12. Apparatus (100) for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to claim 10 or 11, characterized in that the sensor (23) is selected from one of the following options: a distance sensor or a sensor that is an integral part of a camera (24).
[13]
13. Apparatus (100) for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to any of the claims 10 to 12, characterized in that it comprises a fixed frame (10) with respect to the ground on which the turning device (90) and the transport station (15) are supported.
[14]
14. Apparatus (100) for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to any of claims 10 to 13, characterized in that it comprises:
- an input conveyor (12) comprising an input conveyor actuator (13) that drives the input conveyor (12) in use according to a second feed direction (A2), and a plurality of rollers (16) perpendicular to the second direction forward (A2) and separated from each other, which define a support surface and elongated holes (17);
- a feed conveyor (20), located before the input conveyor (12) according to the second feed direction (A2), comprising a feed conveyor actuator (21) that drives the feed conveyor (20) in use. according to the second direction of advance (A2);
- a container conveyor (80), located after the input conveyor (12) according to the second direction of advance (A2), which comprises a container conveyor actuator (81) that drives the container conveyor (80) in use. according to the second direction of advance (A2);
- and a dump holder base (91b) of the dump holder (91) comprising a plurality of elongate plates parallel to each other;
where:
in the vertical position of the container (101) the base of the tumbling receptacle (91b) is below the support surface of the rollers (16) and the container (101) rests on a support surface of the input conveyor (12 ), Y
in the turned off position the dump holder base (91b) is above the support surface of the rollers (16) and the container (101) rests on the base of the dump holder (91b).
[15]
15. Apparatus (100) for the extraction and transport of flexible bags (50) filled with a flowing material and contained in containers (101) according to any of claims 10 to 14, to perform the method according to any of claims 1 to 9 .
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同族专利:
公开号 | 公开日
ES2724774B2|2020-01-24|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题
ES2291393T3|2001-09-05|2008-03-01|WEBER MASCHINENBAU GMBH & CO. KG|DISTRIBUTING DEVICE.|
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ES2651155A1|2016-07-20|2018-01-24|Telesforo González Maquinaria, Sl|Procedure and apparatus for transfering flexible bags filled with a liquid product, susceptible to flow, high viscosity or granulated from a first container to a second container |
ES2651156A1|2016-07-20|2018-01-24|Telesforo González Maquinaria, Sl|Appliance with a moving mechanism to transfer flexible bags filled with a liquid product, susceptible to flow, high viscosity or granulated from a first container to a second container |
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优先权:
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ES201830230A|ES2724774B2|2018-03-08|2018-03-08|METHOD AND APPARATUS FOR THE EXTRACTION AND TRANSPORTATION OF FLEXIBLE BAGS FILLED WITH A FLOWING MATERIAL AND CONTAINED IN CONTAINERS|ES201830230A| ES2724774B2|2018-03-08|2018-03-08|METHOD AND APPARATUS FOR THE EXTRACTION AND TRANSPORTATION OF FLEXIBLE BAGS FILLED WITH A FLOWING MATERIAL AND CONTAINED IN CONTAINERS|
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