• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    The invention relates mainly to a modular bagging system which comprises securing means (6) adapted to secure the module said main module (2) to at least one complementary module (3, 4, 5) which comprises at least control means and is adapted to participate in the packaging of the product in bulk in each container, the bagging system (1) comprising data transmission means configured according to a master-slave model and adapted to ensure communication between the means controlling the main module (2) which are master and the control means of the complementary module (3, 4, 5) which are slave.
    公开号:FR3078319A1
    申请号:FR1851755
    申请日:2018-02-28
    公开日:2019-08-30
    发明作者:Guillaume Sibellas；Patrick Benture
    申请人:Acemma；
    IPC主号:
    专利说明:

    OPEN MOUTH BAGGING SYSTEM
    Field of the invention The invention is in the field of industrial packaging.
    The invention relates more particularly to a system of the open mouth bagging type for packaging a bulk product in individual bags or sachets.
    PRIOR ART [0003] An open mouth bagging machine is a well-known system which is in the form of a bagging line or automatic or semi-automatic packaging. This line includes a module adapted to successively fill each container with a determined quantity of product, which module includes its own control means.
    The automatic bagging line also includes means for distributing empty bags to the aforementioned assembly, and means for closing and sealing the bags filled with product.
    The bagging lines of the prior art thus make it possible to package products in bags calibrated to the thousandth or to the ten-thousandth of the total weight of the bag considered, while respecting high rates - up to two thousand five hundred bags filled per hour.
    Disadvantages of the Prior Art [0006] However, to obtain such precisions and filling rates, these bagging lines are mechanically complex, bulky and expensive.
    In addition, the bagging lines of the prior art are not able to adapt to the nature of the products to be packaged, so that they do not necessarily meet the specific needs of each user, who may have products to be packaged of different natures.
    Objectives of the invention The invention aims firstly at an open mouth bagging system adaptable to the needs of users and to the nature of the products to be packaged.
    The invention also aims to provide an open mouth bagging system whose acquisition, maintenance and operating costs are controlled.
    Disclosure of the invention For this purpose, the open-mouth bagging system of the invention is essentially characterized in that it comprises at least one module suitable for successively filling each container with a determined quantity of product , which module comprises at least own control means, which bagging system comprises securing means adapted to secure the module said main module to at least one additional module which comprises at least own control means and is adapted to participate packaging the bulk product in each container, and which bagging system comprises data transmission means configured according to a master-slave model and adapted to ensure communication between the control means of the main module which are master and the means module that are slave.
    The securing means of the invention and the configuration of the transmission means according to a master-slave model makes the bagging system modular, which allows the user to change said system according to the revolution of its own needs (in particular changes in the need for packaging rates or changes in the nature of the products to be packaged). In addition, the costs of acquisition, maintenance and operation are under control, because they are perfectly in tune with the needs of the user at a given time.
    The device of the invention may also include the following optional characteristics considered in isolation or according to all possible technical combinations:
    the master control means of the main module are a programmable and programmed automaton, the system comprises at least one complementary module, the slave control means of which include an electronic expansion card controlling said complementary module, which expansion card comprises at least one input / output connector intended to connect said expansion card by computer to the main module PLC, the main module PLC is designed to be connected to a power supply, and the expansion card slave is electrically connected to the PLC via a multi-pair electrical connector, each module includes a pneumatic distribution island, and each island is adapted to be connected to the electrical energy source and to a pneumatic energy source and to be controlled by the PLC of the main module or the slave expansion card considered, l he system includes a man-machine interface connected to the main module and making it possible to program and / or control the automaton of said module and the possible slave expansion card and to control the launching and stopping of the bagging cycles implemented by the system, the main module comprises at least one means for storing the bulk product, a means for dosing the bulk product disposed at the outlet of the storage means and intended to generate a calibrated flow of bulk product, a discharge means disposed at the outlet of the metering means and comprising an open mouth outlet adapted to open into the container disposed under said open mouth outlet to be filled with product, the outlets of the metering means, the storage means and the discharge means being with opening controlled by the control means of the main module, the system comprises at least one of first, second and third complementary modules, which el first complementary module is adapted to distribute and successively position the containers at the open mouth outlet of the discharge means of the main module, which second complementary module is adapted to seal each filled container, and which third complementary module, when is arranged between the storage means and the discharge means of the main module, is suitable for weighing a determined quantity of product to be bagged in a single container, and in that each additional module comprises slave control means respectively connected to the means of master control of the main module, each module comprises a chassis having a quadrilateral shape in section and comprising a plurality of sections assembled together, the securing means are formed by a plurality of fixing plates each adapted to be positioned and fixed astride two profiles e n respectively look at the chassis of two adjacent modules, the profiles of the chassis of each module are hollow in order to allow the passage of the various electrical, computer and pneumatic connection cables.
    The invention further relates to a method of associating a main module and at least one complementary module of a bagging system as described above, comprising the steps of:
    • assembly of the two chassis of the respective modules together by the securing means;
    • electrical connection between the master control means of the main module and the slave control means of the additional module;
    • computer connection between the control means of the respective modules to allow the exchange of data between them;
    • connection of the main module to at least one energy supply source.
    Presentation of the figures [0014] Other characteristics and advantages of the invention will emerge clearly from the description which is given below, for information and in no way limitative, with reference to the appended figures among which:
    FIG. 1 is a perspective view of the bagging system of the invention comprising four modules,
    - Figure 2 is a perspective view of part of the main module of Figure 1 in a first alternative embodiment,
    - Figure 3 is a perspective view of part of the main module in a second alternative embodiment,
    FIG. 4 is a perspective view of the first complementary module of FIG. 1,
    FIG. 5 is a perspective view of the second complementary module of FIG. 1,
    - Figure 6 is a perspective view of the third complementary module of Figure 1, associated with a metering means of the main module.
    Detailed description of the invention It is firstly specified that in the figures, the same references designate the same elements regardless of the figure on which they appear and whatever the form of representation of these elements. Similarly, if elements are not specifically referenced in one of the figures, their references can be easily found by referring to another figure.
    It is also specified that the figures essentially represent an embodiment of the object of the invention but that there may be other embodiments which meet the definition of the invention.
    Referring to Figures 1 to 6, the bagging system 1 of the invention is composed of at least one main module 2 adapted to implement the main steps of packaging a bulk product in containers such as bags or sachets, that is to say and as will be seen in detail below, the dosage of the bulk product to facilitate weighing, then bagging of a determined quantity of product. The product is thus packaged in flexible containers such as bags or sachets. In the following description, the term bag will be used to designate such a container.
    Such a product to be packaged is generally in granular form, consisting of more or less large grains depending on the product. For example, the bagging system is able to condition charcoal, pellets, cereals, or much finer products such as powders, especially flour.
    The main module 2 (Figures 1 to 3) comprises a frame, of which only part 20 is shown in Figures 1, 2 and 3 and has in section a preferably quadrilateral shape. The frame 20 is formed of a plurality of sections 21 assembled together, these sections 21 being preferably metallic, and even more preferably made of aluminum. In addition, the profiles forming the chassis 20 of the main module 2 are hollow for practical and ergonomic reasons, which will be explained below.
    The frame 20 also includes a plurality of feet 11 vertically adjustable and projecting from the underside of the frame 20, the feet 11 being intended to rest on the ground. This lower face is defined as being the face of the chassis 20 extending in a horizontal plane, which lower face is facing the ground when the main module 2 is installed on said ground.
    The main module 2 comprises a first means 7 for storing the bulk product, for example a first hopper commonly known as a buffer hopper, secured to the chassis 20. In the following description, the term first hopper will be used to denote the storage medium 7.
    The first hopper 7 may include sensors of the level of product which is stored there, to allow for example the automatic management of the supply of this first hopper 7. Preferably, the first hopper 7 is made of steel or stainless steel.
    The first hopper 7 opens into a metering means 8 (Figure 1) for generating a calibrated flow of bulk product from the first hopper 7. The metering means 8 comprises a formwork 82, preferably steel or stainless steel, comprising an inlet 80 for product with controlled flow rate coming from the first hopper 7, a metering device, and an outlet for product 81.
    The metering device comprises means for conveying the bulk product from the inlet to the outlet of the metering means. In known manner, these conveying means are for example one or more motorized endless screws, or else a motorized belt conveyor. In the latter case, the metering device may include a member for adjusting and harmonizing the thickness of the product on the mat, such a member being commonly called a guillotine.
    The motor 12 of the routing means is powered by an electrical box 83 of the metering means 8 and is controlled by control means integrated into the main module 2, preferably in a cabinet 13 secured to the chassis 20. These means control are connected to a source of electrical energy supply and are preferably a programmable automaton and if necessary preprogrammed, the characteristics of which will be described later. The term automaton will be used in the following description to designate the control means of the main module 2. Furthermore, the main module 2 also includes a pneumatic island whose characteristics are known, this island being connected on the one hand to the power source and secondly a pneumatic power source.
    The controller allows in particular to vary the speed of rotation of the output shaft of the motor 12 of the conveying means to adjust the speed of rotation of the worms or the straight speed of the belt. Thus, by controlling the motor 12, the automaton directly adjusts the flow rate of bulk product leaving the metering means 8. In known manner, the motor 12 is controlled by means of a variator provided for this purpose, controlled and supplied with electricity from the machine.
    In addition, the inlet 80 and the outlet 81 of the metering means 8 are opening controlled by the automaton: the inlet 80 and the outlet 81 each comprise a swiveling helmet (that is to say a hatch having the shape of a cylinder portion) or a flat hatch intended to gradually close or open the orifice forming the inlet 80 or the outlet 81. This pivoting helmet is connected to a jack 14, itself connected to the pneumatic island of the main module 2. The automaton is thus able to control the opening surface of the inlet 80 and / or the outlet 81 of the metering means 8 by controlling the pneumatic island so that the latter actuates the jack 14 consequently, in order to ultimately control the position of the helmet and thus the flow of bulk product entering and leaving the metering means 8.
    Thus, the bulk product at the outlet of the metering means 8 flows in a calibrated flow and with a flow rate controlled by the controller of the main module 2, which facilitates the subsequent filling of the bags.
    The outlet 81 of the metering means 8 opens into a means for discharging the bulk product disposed on the upper face of the chassis part 20 shown in FIGS. 2 and 3, this upper face being opposite the lower face. This discharge means 9 is for example a second hopper made of steel or stainless steel and is commonly called product discharge hopper. In the following description, the term second hopper 9 will be used to designate the means 9 for discharging bulk material.
    In a manner known per se, as long as the bag is filled below a determined fraction of the total quantity of product provided in the bag, the product flow rate in the metering means 8 is maximum in order to obtain a high conditioning rate. When the bag is almost filled, that is to say beyond this determined fraction, the flow rate of product in the metering means 8, and therefore of product falling into the bag, is progressively reduced by the machine, which ensures an accuracy of the optimal filling quantity. For example and without limitation, this determined fraction represents approximately eighty percent of the quantity of product intended to fill the bag.
    In order to be filled with product, the bag is positioned at outlet 10 of the second hopper 9, this outlet being an open mouth 10 with controlled opening. Concretely, the opening of the bag is installed around the open mouth 10, an operation which can be carried out manually. This mouth comprises two plates 15 functioning as a clamp and forming jaws. Each plate 15 is articulated by a jack 16 supplied by the pneumatic island, along an axis of rotation allowing the clamping operation of said plates
    15.
    In addition, sensors for the presence of a bag at the outlet of the second hopper 9 are positioned on the walls of the mouth with an open mouth 10, in the vicinity of the end of this mouth 10. These sensors, supplied with electrical energy by and connected to the main module PLC 2, detects the presence or not of a bag. These sensors then send the corresponding information to the automatic device, which controls the pneumatic island so that the latter actuates the corresponding jacks 16: if a bag is detected, the automatic device controls the opening of the mouth with an open mouth 10. Conversely, if no bag is detected, the automaton closes the mouth 10.
    It is also understood that in the presence of a bag at the open mouth 10, the product from the metering means 8 pours directly into the bag, while without the presence of such a bag at level of the mouth 10, the metering means 8 is not activated by the automaton of the main module and the inlet 80 of said metering means 8 remains closed. The product therefore does not circulate in the bagging system 1.
    To allow the bag to be maintained at the level of the open mouth 10 when it is filled and to improve the seal at the opening of the bag, the main module 2 comprises two movable buffers 17a, 17b in translation controlled by the automaton (using jacks connected to the pneumatic island), the function of which is to come into abutment against the mouth with an open mouth 10 when the presence sensors detect a bag, in order to pinch and jam the walls of the bag between each tampon 17a, 17b and the wall of the open mouth 10.
    The open mouth mouth 10 also includes tensioning fingers 18 controlled by the machine between a folded position in which the fingers 18 are disposed respectively along two opposite walls of the mouth 10, and an unfolded position in which the fingers 18 are separated and distant respectively from the two opposite walls of the mouth 10. When the bag is installed at the level of the mouth 10, the free ends of the tensioning fingers 18 in the folded position are inside the bag.
    In order to determine in real time the quantity of product to be bagged in a bag considered, the open mouth 10 is suspended from means for weighing in gross weight (not shown), or scales, integral with the second hopper 9 These scales are called gross weighing means because they measure the weight of product and the bag together. These load cells are supplied with electrical energy and connected to the PLC. The information coming from the scales and sent to the automaton thus enables it to control the flow rate of bulk product leaving the metering means 8, as explained above.
    Finally, in the first alternative embodiment of Figure 1, the main module 2 comprises a receiving seal 19 adjustable in height manually or automatically by appropriate means, for example using a system of notched plates 22. When the bag is filled with the determined quantity of product, the automatic device controls the closing of the outlet 81 of the metering means 8 and the stopping of the belt conveyor (or of the endless screws) of said metering means 8. The machine then controls the withdrawal of the pads 17a, 17b for holding the bag against the open mouth 10, which causes the bag to move by gravity on the receiving seal 19. Concomitantly, the tensioning fingers 18 move apart for that the bag is released to tighten the opening of the bag, in order to bring the edges of the bag closer and facilitate the subsequent closing of the bag.
    Alternatively, when the movement of the seal 19 is automated, the latter is movement controlled between a low position remote from the bag and a high position in contact with the bottom of the bag. When the bag is filled with the determined quantity of product, the machine controls the closing of the outlet 81 of the metering means 8 and the stop of the belt conveyor of said metering means 8. The machine then controls the movement of the seals 19 in the high position then the removal of the pads 17a, 17b for holding the bag against the mouth with an open mouth 10. The automaton finally controls the movement of the seal 19 in the low position.
    In all cases, the user only has to collect the bag and close it manually.
    Optionally, the bagging system 1 comprises means for automatically filling the first hopper 7 controlled by the main module automaton 2. As seen above, the first hopper 7 comprises at least two sensors level probe type, a first low level probe intended to detect a minimum quantity of product stored in the first hopper 7 and below which product must be added, and a second high level probe intended to detect a maximum quantity of product stored in the first hopper 7 and do not exceed.
    Thus, when the low level sensor detects that the level of product in the hopper 7 is below the minimum threshold, the machine controls the automatic filling means so that the latter pour bulk product into the first hopper 7. This action continues as long as the high level probe has not detected that the level has reached the maximum threshold corresponding to the quantity of product in the first hopper 7 not to be exceeded. When the high level probe detects that this maximum level is reached, the automatic device controls the automatic filling means so that the latter stop the spillage of bulk product in the first hopper 7.
    The main module 2 also includes a man-machine interface 23 provided for example with a system control device 1 and display 25, for example a touch screen, this interface being connected to the controller of the main module 2 and installed on said main module 2, for example on a plate 26 provided for this purpose.
    With this main module 2, it is understood that the main steps of filling the bag with product are implemented. However, many additional steps, such as providing empty bags, installing the bags under the open mouth 10, retrieving and closing the bags remain manual.
    According to the invention, it is possible to add to the main module 2 additional modules 3, 4, 5, each having a specific function being part of the process of packaging bulk product in the bags.
    Among the additional modules 3-5 capable of being associated with the main module 2 to complete the bagging system 1, a first complementary module 3 is adapted to distribute and position bags successively at the level of the open mouth 10 of the second hopper 9 of the main module 2, a second additional module 4 is adapted to automatically close the filled bags, and a third additional module 5 is adapted to carry out a weighing in net weight of the bulk product to be bagged, that is - say to carry out a weighing of the product without the weight of the bag. The structure of these additional modules 3 - 5 and their functions will be described in detail later, but it can already be specified that each additional module 3-5 comprises a formwork 32, 50 and / or a frame 30, 40 having the same characteristics that the chassis 20 of the main module, and in particular the chassis 30, 40 of the complementary modules 3, 4, 5 respectively comprise hollow sections 31, 41.
    To complete the bagging system 1, it is planned to add at least one additional module 3 - 5 to the main module 2, according to an association method which will now be described for the main module 2 and a module. complementary 3 - 5. It is obvious that this association process is repeated each time a new complementary module 3 - 5 is added to the bagging system 1.
    First, it involves mechanically associating the main modules 2 and complementary 3-5. To do this, the two chassis 20, 30; 20, 40 respectively of the main 2 and complementary 3-5 modules are joined together by the joining means 6. For example, it involves joining the two frames 20, 30, 40, then positioning the fixing plates 60, 61 straddling pairs of facing sections 20, 30; 20, 40 of the two respective chassis 2, 3; 2.4.
    Advantageously, the fixing plates 60, 61 are prepositioned and prefixed on the chassis 30, 40 of the complementary module 3, 4, 5 to be associated with the main module 2, to facilitate the installation of said complementary module 3, 4 , 5. Finally, the user fixes the plates 60, 61, for example using screws, on the profiles 21 of the chassis 20 of the main module 2 and on the profiles 31, 41 of the chassis 30, 40 of the additional module 3, 4. Advantageously, the screws adapted to the fixing of the chassis 20, 30, 40 between them is supplied with each additional module 3, 4, 5. These fixing plates can be flat 60 or angled 61, depending on the position of one of the chassis relative to the other.
    Thus, the configuration of the chassis 20, 30, 40 of the main 2 and complementary modules 3, 4, 5 allows a user to easily assemble any complementary module 3, 4, 5 to the main module, thanks to fastening means 6 simple and pre-positioned on each chassis 30, 40 of the complementary module (s) 3, 4, 5 to be associated with the main module.
    In a second step, it is a question of electrically, pneumatically and computerally associating the two main modules 2 and complementary 3 - 5, so that the complementary module 3-5 can be controlled from the PLC of the main module 2.
    To do this, each complementary module 3-5 also includes its own control means, and a pneumatic island connected to the pneumatic power source and to the control means of said complementary module 3-5. The control means are integrated in a cabinet 27, 28 provided for this purpose and integral with the chassis 40 or the formwork 50 of the additional module 3-5.
    The control means of the complementary module 3-5 considered include an electronic expansion card electrically connected to the controller of the main module 2 via a multi-pair electrical connector. This expansion card is therefore supplied with electrical energy by the PLC. In addition, such a multipair connector allows the user to easily connect the controller to the considered expansion card, but also to connect several extension cards of respective complementary modules 3-5 from a single multipair cable. starting from the main module PLC 2.
    The extension card of the complementary module 3 - 5 is linked by computer to the PLC of the main module 2 by suitable connection means, for example of the Ethernet cable type. In particular, the expansion card is linked by computer to the PLC of the main module 2 via an input / output connector mounted on the expansion card, for example an input / output connector for a general purpose, commonly called GPIO connectors (from the English “General Purpose Input / Output”), and which allows the PLC of the main module 2 to drive the expansion card, as we will see now.
    According to the invention, the bagging system 1 comprises data transmission means, for example a computer bus ensuring communication between the main module 2 and each complementary module 3 -
    5. In the following description, the term computer bus will be used to define the means of data transmission.
    According to the invention, the computer bus is configured according to a master / slave model and thus adapted to ensure communication between the PLC of the main module 2 and the extension card of the complementary module considered 3 5, and in which the controller is master and the expansion card is slave. In practice, the extension card of the additional module 3-5 controls the elements of said additional module 3 - 5, including the pneumatic island, and the controller of the main module 2 sends binary instructions to the extension card considered for authorize him to generate and send the instructions for ordering the additional module considered 3-5.
    According to the invention, the series of instructions implemented by the bagging system 1 for packaging the product in bags is adaptable by the automaton of the main module 2 as a function of the associated add-on module (s) 3-5 to the main module 2. In particular, when only the main module 2 is in operation, that is to say that it is not associated with any additional module 3-5, then the controller selects a series of instructions for the packaging involving only the main module 2, and where appropriate the means for automatically filling the first hopper 7.
    If an additional module 3 - 5 is associated with the main module 2, then the controller of said main module 2, having detected the extension card of the additional module considered 3-5, selects the following set of instructions for packaging. involving the main module 2 and the associated additional module 3 - 5, and where appropriate the means for automatically filling the first hopper 7. Thus, whatever the number of additional modules 3 5 associated with the main module 2, l 'PLC of the main module 2 adapts the sequence of instructions for the implementation of the packaging according to the modules 2-5 present in the bagging system 1.
    Of course, these different sequences of instructions are implemented by a computer program recorded in a memory space of the PLC of the main module 2, and by subroutines recorded respectively in a memory space of the cards. extensions of the additional modules considered 3-5. Alternatively and preferably, the different sequences of instructions are all implemented by the computer program stored in the memory space of the PLC of the main module 2, and each extension card of the complementary module considered 3, 4, 5 makes it possible to activate the functionalities of said additional module 3, 4, 5, and this from the instructions sent by the automaton when the latter detects the input / output connector of said expansion card.
    In addition, the man-machine interface 23 also makes it possible to select the desired series of instructions, in other words to select the additional modules 3 - 5 which are involved in the packaging process. In other words, it is possible not to involve an additional module 3-5 in the conditioning process, even if the latter is associated with the main module 2. Conversely, it is impossible to select a sequence of instructions involving an additional module 3 - 5 which is not associated with the main module 2.
    It is therefore particularly easy for the user to connect the main module 2 mechanically, computer, pneumatically and electrically with at least one additional module 3, 4, 5, without it being necessary for him to call on a specialized professional, in particular an electrician or an automation engineer. The invention thus has an important logistical advantage, which generates a significant reduction in the costs of acquisition and installation of the bagging system 1 of the invention.
    Referring to Figures 4 to 6, the three complementary modules 3 - 5 and their functions will now be described.
    Referring to Figure 4, the first complementary module 3 is intended to automatically supply bags at the level of the open mouth 10 of the main module 2. The first complementary module 3 includes inside its chassis 30 and from its formwork 32 a support 33 mounted on rails 34 and serving as a store for empty bags folded and stacked on top of each other. This store 33 has the shape of a box, and is provided with a handle 35 integral with one of its side walls to allow a user to take the store out of the chassis 30 by sliding it on the rails 34, and this in order to allow the user to easily add empty bags to the support 33. The magazine 33 further comprises four removable tabs 36 extending perpendicular to the upper wall of said magazine 33, to allow precise positioning bags on the magazine 33. Alternatively, the movement of the magazine 33 on the rails 34 can be motorized via a motor controlled by the extension card of the first additional module 3 and powered by an electrical box connected to the PLC of the main module 2.
    When this first complementary module 3 is associated with the main module 2, the controller of the main module 2 launches a series of instructions involving the first complementary module 3 to launch the packaging process. In other words, the PLC of the main module 2 controls the expansion card of the first complementary module 3 so that the latter implements part of the instructions coming from the PLC of the main module 2 and involving said complementary module. 3.
    The implementation of these instructions implements a conditioning cycle starting with the supply of a bag from the store 33 under the open mouth 10 of the main module 2, which will be described below. This packaging cycle can be triggered automatically: for this purpose, the store includes a bag detection cell electrically connected to the extension card. When a bag is detected, the information from the cell is transmitted to the expansion card which transmits it to the PLC of the main module 2. The PLC starts the packaging cycle in return.
    The extension card of the first complementary module 3 controls the deployment of a first arm 37 mounted in translation on the chassis 30 to an empty bag of the magazine 33. The deployment of the arm 37 is achieved by actuation of a jack 38, itself connected to the pneumatic island of the first complementary module 3 controlled by the extension card of said complementary module 3.
    This arm 37 comprises at its free end intended to come into contact with the empty bag a line of suction cups 39 connected to the pneumatic island of the complementary module. When these suction cups 42 come to bear against an upper wall of the bag (that is to say the wall opposite the lower wall opposite the magazine), the extension card controls the suction on the upper wall of the bag by the suction cups 42 then the raising of the arm 37, which has the effect of lifting the empty bag.
    The extension card then controls the deployment of a second arm (not shown) provided with suction cups connected to the pneumatic island of the complementary module 3, intended to come opposite the bottom wall of the bag. When these suction cups are pressed against the bottom wall of the bag, the extension card controls the suction on the bottom wall of the bag by the suction cups and then the lowering of the second arm, which has the effect of opening the bag.
    Once the bag is open, two pallets 43a, 43b are introduced into the bag. These pallets 43a, 43b are respectively fixed on the respective ends of two arms 44a, 44b mounted on a transverse axis 45 to the chassis 30. When the pallets 43a, 43b are introduced into the bag, the arms 44a, 44b are in a close position so that the pallets 43a, 43b are almost in contact with each other. In this position, the arms 44a, 44b extend in the chassis 30 of the first complementary module 3 in a vertical plane.
    So that the pallets 43a, 43b enter the opening of the open bag, the extension card controls a slight rotation of the transverse arm 45 moving the arms 44a, 44b and the pallets 43a, 43b towards the inside of the chassis 30. Then, the extension card controls the spacing of the arms 44a, 44b so that the pallets 43a, 43b come to bear on the edges of the bag, which has the effect of tightening the edges of the bag at its opening and allowing the pallets 43a, 43b to grip the bag.
    Then, the extension card controls the rotation of the arms 44a, 44b in the opposite direction until these arms 44a, 44b extend in a substantially horizontal plane, so that the mouth open mouth 10 of the main module 2 passes through the opening of the bag. Of course, the spacing and rotation of the arms 44a, 44b is carried out using jacks 46 connected to the pneumatic island of the first complementary module 3.
    The bag is then filled and collected according to the process described above, and the supply cycle of an empty bag continues as long as empty bags are present in the store 33 of the first additional module 3.
    Referring to Figures 3 and 5, the second complementary module 4 is intended to automatically close and seal the bags filled by the main module 2. When this second complementary module 4 is associated with the main module 2, then the latter presents itself in the alternative embodiment of Figure 3 and wherein the receiving seal is replaced by a motorized belt conveyor 47, automatically adjustable in height in the same way as the adjustable seal 19 described above. Alternatively and preferably, the height adjustment of the belt conveyor 47 is manual and carried out via a crank enabling the belt conveyor 47 to be raised or lowered along a linear guide.
    The second additional module 4 also includes a motorized belt conveyor belt 48, arranged in the extension of the belt belt 47 of the main module 2 when said main module 2 and said second complementary module 4 are associated with each other. This mat 48 is motorized by an electric motor 49 supplied by an electric box or cabinet 27 connected to the main module automaton 2, this motor 49 being further controlled by the extension card of the second complementary module 4.
    When this second complementary module 4 is associated with the main module 2, the controller of the main module 2 launches a series of instructions involving the second complementary module 4 to launch the packaging process. In other words, the PLC of the main module 2 controls the expansion card of the second complementary module 4 so that the latter implements part of the instructions coming from the PLC of the main module 2 and involving said complementary module. 4.
    The implementation of these instructions implements a beginner conditioning cycle or, if the first additional module 3 is installed, with the supply of a store bag 33 under the open mouth 10 of the main module 2, or by the bag filling cycle described above in connection with the main module 2.
    The second complementary module 4 comprises a bag gripper 51 which comprises at least two jaws 52, 53 whose spacing is controlled by the extension card of the second complementary module 4, via at least one jack 54 connected to a pneumatic island 55 of the second complementary module 4, which island is controlled by the considered extension card. In addition, the bag gripper 51 is movable in translation along the axis of the conveyor belt 48, between a folded position inside the chassis 40 of the second additional module 4 and an unfolded position inside the chassis 20 of the module. main 2.
    Thus, once the bag is almost full, for example more than 80% of the total amount of product, the bag gripper 51 initially in the apart and folded position, is unfolded so that its two jaws 52, 53 are found on either side of the opening of the bag. As soon as the bag is released in order to be deposited on the belt conveyor 47 of the main module 2, the tensioning fingers 18 moving apart to bring the edges of the bag closer, the extension card of the second complementary module 4 controls the approximation jaws 52, 53 of the clamp for enclosing the portion of bag in the vicinity of its opening: the opening of the bag is then closed by the clamp 51, but not sealed.
    The extension card then controls the movement in translation of the clamp 51, at the same time as the starting of the conveyor belts 47, 48 of the main module 2 and of the second complementary module 4 respectively.
    The bag is thus moved to a belt conveyor 56 of the second complementary module 4. This conveyor 56 allows the portion of the bag to be guided in the vicinity of its opening along a slot 57 provided with a motorized belt driving the bag and making it possible to keep the bag closed and unsealed, which prevents contamination of the bagging line with product liable to escape from the bag filled during its convoy in the second additional module 4, and the opening of which said bag would remain gaping after filling. The motorization of the belt is controlled by the extension card of the second additional module 4. The combined effect of this belt conveyor 56 and the conveyor belt 48 makes it possible to move the bag inside the chassis 40 of the second additional module 4 to a bag folding system 58, which makes a flap at the opening of the bag. This fallback system 58 is optional.
    The bag is then led to a sealing system 59 of the opening, for example a sewing system which makes it possible to sew the opening with a thread generally made of cotton or synthetic material, with a sewing head controlled by the expansion card. This sewing system 59 may include a sewing head capable of performing double thread sewing. As an option, the second complementary module 4 can include a broken thread detector controlled by the extension card, which triggers an alarm in the event that a broken thread is detected to prevent the bags from coming out of the second complementary module 4 without having been sewn .
    Alternatively, and depending on the nature of the bags, the sealing system 59 is a welding system. It is also possible to integrate a sewing system and a welding system in the bagging system 1.
    At the exit of the belt conveyor 56, the second complementary module 4 may comprise a bag-turning clamp 62 controlled by the extension card and triggered by a time delay when the bag leaves the sewing system 59. This clamp 62 has to lift the bag and turn it 90 ° before putting it back down. As the conveyor belt 48 continues to carry the bag while the clamp 62 still holds the bag for a determined period, the bag is laid down automatically, the bottom being first at the outlet of the frame 40.
    Alternatively, the second complementary module 4 may comprise an ejector / pusher installed at the outlet of the chassis, and intended to move the bag leaving the conveyor belt 48 from said belt, in a direction perpendicular to the axis of the belt 48.
    The bag is then ready to be stored on a pallet for storage.
    It is of course possible to associate only the main module 2 and the second complementary module 4, in which case the packaging cycle will be adapted by the automaton of the main module 2 so as to understand only the steps of filling by the main module 2 and the steps of sewing and / or welding of the bags by the second additional module 4.
    Referring to Figure 6, the third additional module 5 is intended to be disposed between the outlet 81 of the metering means 8 and the second hopper 9. The third additional module 5 is a weighing module in net weight, c that is to say allowing to weigh the amount of product to be bagged by overcoming the weight of the bag. Thus, when such an additional module 5 is installed in the bagging system 1, the scales in gross weight associated with the open mouth 10 are deactivated by the controller of the main module 2. In addition, this third additional module 5 makes it possible to increase the bagging rate, and allows bagging products with very small particle size, such as powders, flours.
    When this third complementary module 5 is associated with the main module 2, the automaton of the main module 2 launches a series of instructions involving the third complementary module 5 to launch the corresponding conditioning process, the steps of which will be described below in connection with the structure of the third additional module 5.
    The third additional module 5 comprises a formwork 50 in which is installed a weigher 63 provided with load cells 69, these load cells 69 being connected to the extension card of the third additional module 5 and supplied by an electrical cabinet 28 of said additional module 5 connected to the PLC of the main module 2 and secured to the formwork 50 of the third complementary module
    5. The weigher 63 includes an inlet 64 in the form of a hopper, into which the outlet 81 of the metering means opens. The weigher 63 further comprises an outlet 65 with opening controlled by the extension card of the third module complementary 5, so that said extension card controls the pouring of the quantity of product weighed into the open mouth 10.
    Finally, the third module 5 includes a clean management interface 24 integrated in the plate 26, which in particular allows the user to directly control the characteristics of the load cells 69 of the weigher 63. This information will be, during the setting implementation of the sequence of instructions considered, transmitted by the extension card of the third module 5 to the PLC of the main module 2.
    The outlet 65 of the weigher 63 comprises two plates 66, 67 operating in clamp and forming jaws. The plates 66, 67 are respectively articulated by two cylinders 68 supplied by the pneumatic island of the third complementary module 5, along an axis of rotation allowing the clamping operation of said plates 66, 67 (a single cylinder 68 is shown in FIG. 6 ).
    The weighing in net weight is part of the bag filling cycle carried out by the main module 2. Thus, when the outlet 81 of the metering means 8 is opened by the automatic device of the main module 2, the card d 'extension controlled upstream closing the outlet 65 of the weigher 63. The metering means 8 being in operation, the bulk product pours into the weigher 63 and is weighed in real time. As long as the product weight in the weigher 63 has not reached a determined fraction of the packaging weight of a bag, the metering means 8 operates at the highest rate. As soon as the weight reaches this determined fraction in the weigher 63, the automaton of the main module 2 gradually closes the outlet 81 of the metering means 8 and reduces the speed of the motor 12 of the belt (or of the worm) dosage 8, to increase the accuracy of the weighing. For example, this fraction represents eighty percent of the total weight of product packaged in a bag. In addition, the value of the total weight to be weighed by the weigher 63 can be programmed and controlled via the interface 24 considered.
    Once the total packaging weight has been reached in the weigher 63, the controller of the main module 2 closes the inlet 80 and the outlet 81 of the metering means 8 and stops the motorized conveyor belt. Concomitantly, the bag was positioned at the level of the open mouth 10, either by the user or by the first additional module 3 depending on the configuration of the bagging system.
    1. The open mouth 10 is therefore in the open position.
    The extension module of the third module 5 then controls the opening of the weigher 63, so as to pour the correct weight of product into the bag in question. The extension card of the third additional module 5 then closes the outlet 65 of the weigher 63, and the packaging cycle intended to successively fill the bags of product begins again.
    Again, this third complementary module 5 can be the only complementary module associated with the main module 2, or be part of a more complex bagging system 1 also comprising either the first complementary module 3, or the second module complementary 4, or both 3, 4.
    Each main module 2 or complementary 3-5 may include a security system connected to the PLC or to the extension card considered and making it possible to generate a material or immaterial security barrier:
    the PLC or the expansion card will thus detect via this security system any abnormal crossing of the security barrier inside the chassis 20, 30, 40 or formwork 82, 50 considered, and the PLC will react in this case by stopping net the bagging system 1 and the current packaging cycle.
    Finally, as it was specified at the beginning of this description, the sections 21, 31, 41 of the chassis 20, 30, 40 are hollow to allow the passage of the various electric, computer and pneumatic cables making it possible to associate the module main 2 with at least one of the additional modules 3-5.
    The main advantage of the invention is to be able to easily associate and dissociate the desired additional modules 3 - 5 from the main module 2 according to the needs and the changing needs of the user, since the computer bus allows the main module 2 controller to select the product packaging cycles corresponding to the additional module (s) 3-5 actually installed in the bagging system line 1. As specified above, the user can also select cycles more or less complete bagging among the possible cycles determined by the automaton of the main module 2 as a function of the additional modules 3-5 present in the bagging system 1.
    More generally, the bagging system 1 of the invention, by its modularity, can be perfectly adapted according to the needs and the changing needs of the user. For example, the user will not necessarily need immediately the additional net weighing module 5 if the products to be packaged have a large particle size. He can then obtain it and install it later if the nature of the products which he conditions changes thereafter and requires such an additional module 5. This is of course valid for the two other additional modules 3, 4, namely the automatic bag dispenser 3 and the sealing module 4.
    The embodiment described above is in no way limiting, and modifications can be made without departing from the scope of the invention. For example, it may consider installing hydraulic islands in place of pneumatic islands, or mixing the two technologies. It is also possible to use other types of cylinders, in particular hydraulic or electric cylinders. It is also possible to use any type of metering means 8 or known conveyor belt that fits into the bagging system 1 described. Finally, computer communication between the different modules 2, 3, 4, 5 of the bagging system can be carried out using wireless communication means, for example of the Wifi or Bluetooth type.
    权利要求:
    Claims (12)
    [1" id="c-fr-0001]
    1. Open mouth bagging system (1) for packaging a bulk product in a plurality of containers of the bag or sachet type, comprising at least one module (2) adapted to successively fill each container with a quantity of determined product, which module (2) comprises at least own control means, characterized in that the bagging system comprises securing means (6) suitable for securing the so-called main module (2) to at least one additional module (3, 4, 5) which comprises at least its own control means and is adapted to participate in the packaging of the bulk product in each container, and in that the bagging system (1) comprises transmission means configured according to a master-slave model and adapted to ensure communication between the control means of the main module (2) which are master and the control means of the complementary module ( 3, 4, 5) who are slaves.
    [2" id="c-fr-0002]
    2. Bagging system (1) according to the preceding claim, characterized in that the master control means of the main module (2) are a programmable controller.
    [3" id="c-fr-0003]
    3. Bagging system (1) according to claim 2, characterized in that it comprises at least one additional module (3, 4, 5) whose slave control means comprise an electronic expansion card controlling said additional module (3, 4, 5), which expansion card has at least one input / output connector intended to connect said computer card to the PLC of the main module (2).
    [4" id="c-fr-0004]
    4. Bagging system (1) according to the preceding claim, characterized in that the automaton of the main module (2) is designed to be connected to a source of electrical energy supply, and in that the card slave extension is electrically connected to the PLC via a multi-pair electrical connector.
    [5" id="c-fr-0005]
    5. Bagging system (1) according to claim 3 or 4, characterized in that each module (2 - 5) comprises a pneumatic distribution island, and in that each island is adapted to be connected to the source of electrical energy and to a pneumatic energy source and to be controlled by the main module (2) or the slave expansion card considered.
    [6" id="c-fr-0006]
    6. Bagging system (1) according to any one of claims 3 to 5, characterized in that it comprises a man-machine interface (23) connected to the main module (2) and making it possible to program and / or control the 'PLC of said module (2) and the possible slave extension card and to control the start and stop of the bagging cycles implemented by the system (1).
    [7" id="c-fr-0007]
    7. Bagging system (1) according to any one of the preceding claims, characterized in that the main module (2) comprises at least one storage means (7) for the bulk product, a dosing means (8) of the bulk product disposed at the outlet (71) from the storage means (7) and intended to generate a calibrated flow of the bulk product, a discharge means (9) disposed at the outlet (81) of the metering means (8) and comprising an open mouth outlet (10) adapted to open into the container placed under said open mouth outlet (10) to be filled with product, the outlets (71, 81, 10) of the metering means (8), of the means storage (7) and the discharge means (9) being opening controlled by the control means of the main module (2).
    [8" id="c-fr-0008]
    8. Bagging system (1) according to the preceding claim, characterized in that it comprises at least one of first (3), second (4) and third (5) complementary modules, which first complementary module (3) is adapted to distribute and successively position the containers at the level of the open mouth outlet (10) of the discharge means (9) of the main module (2), which second second module (4) is adapted to seal each filled container, and which third complementary module (5), when it is placed between the storage means and the discharge means (9) of the main module (2), is adapted to weigh a determined quantity of product to be bagged in a single container, and in that each additional module (3 - 5) comprises slave control means respectively connected to the master control means of the main module (2).
    [9" id="c-fr-0009]
    9. Bagging system (1) according to any one of the preceding claims, characterized in that each module (2 - 5) comprises a chassis (20, 30, 40) having in section a quadrilateral shape and comprising a plurality of profiles (11) assembled together.
    [10" id="c-fr-0010]
    10. Bagging system (1) according to the preceding claim, characterized in that the securing means (6) are formed by a plurality of fixing plates (60, 61) each adapted to be positioned and fixed astride two profiles (11) respectively facing the chassis (20, 30, 40) of two adjacent modules (2 - 5).
    [11" id="c-fr-0011]
    11. Bagging system (1) according to claim 8 or 9, characterized in that the profiles (11) of the chassis (20, 30, 40) of each module (2 - 5) are hollow in order to allow the passage of different electrical, computer and pneumatic connection cables.
    [12" id="c-fr-0012]
    12. Method for associating a main module (2) and at least one complementary module (3 - 5) of a bagging system (1) according to any one of claims 3 to 6 and 8 to 10 and according to claim 7 when taken into account with claim 3, comprising the steps of:
    • assembly of the two frames (20, 30, 40) of the respective modules (2, 3, 4, 5) together by the securing means (6);
    • electrical connection between the master control means of the main module (2) and the slave control means of the additional module (3 - 5);
    • computer connection between the control means of the respective modules (2 - 5) to allow the exchange of data between them;
    • connection of the main module (2) to at least one energy supply source.
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    同族专利:
    公开号 | 公开日
    FR3078319B1|2020-11-06|
    EP3533717A1|2019-09-04|
    EP3533717B1|2021-03-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20070022715A1|2005-07-29|2007-02-01|Infinity Machine & Engineering Corp.|Modular packaging system|
    WO2010064125A2|2008-12-03|2010-06-10|Soremartec S.A.|Plant for packaging confectionary products in a sterile manner|
    US20110101137A1|2009-11-03|2011-05-05|Jody Langston|Apparatus, system, and method for compostable waste processing|
    DE102013010048A1|2013-06-17|2014-12-18|Haver & Boecker Ohg|Packing machine and process|
    DE102019130364A1|2019-11-11|2021-05-12|Khs Gmbh|Linear filling machine for filling containers with filling material|
    FR3109571A1|2020-04-28|2021-10-29|A2P Concept|System and method for dispensing material to fill a bag|
    CN111498205B|2020-05-16|2021-06-22|广州优易机械科技有限公司|Material packaging assembly line|
    CN112455738B|2020-12-09|2022-02-11|合肥天和电子衡器设备有限公司|Ton package weighing system based on thing networking|
    法律状态:
    2019-01-23| PLFP| Fee payment|Year of fee payment: 2 |
    2019-08-30| PLSC| Publication of the preliminary search report|Effective date: 20190830 |
    2020-01-22| PLFP| Fee payment|Year of fee payment: 3 |
    2021-01-20| PLFP| Fee payment|Year of fee payment: 4 |
    2022-01-19| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1851755|2018-02-28|
    FR1851755A|FR3078319B1|2018-02-28|2018-02-28|OPEN MOUTH BAGGING SYSTEM|FR1851755A| FR3078319B1|2018-02-28|2018-02-28|OPEN MOUTH BAGGING SYSTEM|
    EP19160055.0A| EP3533717B1|2018-02-28|2019-02-28|Bagging system with open mouth|
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