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    • 专利摘要:
    Apparatus (1) and method for bagging fluid materials, such as fluids and bulk products (4), into flexible and empty open mouth bags (3), comprising a stationary part (5) and a movable part (6) in which in the movable part (6) there are several filling stations (11-18) which move longitudinally. Each filling station (11-18) has a retaining device (20) attached to the moving part (6). A plurality of handling stations (41-48) are present and distributed in the stationary part (5). A handling station (41) is configured as a receiving station (20) to take up empty openmouth bags (3) and a handling station (42) is configured to fill an openmouthed bag (3). A handling station (44) is equipped with a weighing unit (7). A bag receiving unit (10) is attached to each of the holding devices (20) to receive a bag (3), the bag receiving unit (10) being configured to receive and guide the open mouth bag (3 ). The bag receiving unit (10) in the handling station (44) is equipped with a weighing unit (7), which can be temporarily decoupled from the power transmission to the holding device (20) to allow a separate weighing of the open mouth bag receiving unit (3).
    公开号:BR112017005722B1
    申请号:R112017005722-0
    申请日:2015-09-24
    公开日:2021-05-18
    发明作者:Vollenkemper Willi；Westarp Christian
    申请人:Haver & Boecker Ohg；
    IPC主号:
    专利说明:

    Field of Invention
    [001] The present invention relates to an apparatus and a method for bagging fluid materials such as fluids and bulk products in empty open mouth bags. The packaging machine has a stationary part with several handling stations and a mobile part with several filling stations that move along the machine.
    [002] Bulk products are by means of the invention, in particular, filled in flexible bags, open and empty, the so-called open mouth bags. The invention is particularly suitable for bagging bulk products, such as cement, high quality ceramic mortar and other building materials or the like, in open mouth bags, where different bag sizes can optionally be processed to bag weights. between approximately 1 kg and 10 kg. However, higher and lower fill weights are also possible. These open mouth bags can also be called a purse or small bag. State of the Art
    [003] Several devices have already been disclosed in the prior art for filling fluid materials in open-mouth bags. The filling of open mouth bags tends to provide the grip of the bags in their open tops and their retention during filling to ensure definite handling of the bags. This allows to reduce the consumption of plastic sheets, since for the bags, which consist of tubular sheets or made from flat sheets, no more needs to be done than necessary for the filling work. The disadvantage of these processes is relatively complex equipment for retaining and guiding open-mouth bags and for filling. When bagging volumes weighing only 1 kg or 5 kg or 10 kg the relative operating expenses increase even more due to the low weight.
    [004] Unlike packing bulk or liquid products in open mouth bags or sacks, filling these materials in containers with firm side walls does not require the same amount of work as open top containers that have walls firm sides can assume a precisely defined location and position. This is why open-top containers, such as buckets or boxes, such as prefabricated rigid paper bags, which have firm side walls, can be positioned on conveyor belts or the like and thus transported to filling stations where the desired material is filled from the top. This is not so simple for filling fluid materials into open mouth flexible bags as the plastic flexible bag material does not have a defined filling mouth available or secured for transport on a conveyor belt. Invention Summary
    [005] It is therefore the object of the present invention to provide an apparatus and method that allow the safe filling of open mouth bags while keeping expenses low.
    [006] Said objective is achieved by an apparatus with the features of claim 1 and by a method having the features of claim 17. The preferred specific embodiments of the invention are objects of the dependent claims. Other advantages and features of the present invention can be taken from the general description and the description of the embodiment of the invention in the examples.
    [007] An apparatus according to the invention serves to fill fluid materials such as fluids and bulk products into empty open-mouth bags. The apparatus comprises a stationary part and a mobile part. The moving part is provided with several filling stations that travel along the machine. Each of the filling stations is provided with a retaining device fixed to the moving part. The stationary part is provided with several distributed handling stations. At least one handling station is configured as an acquisition station to receive empty open mouth bags. At least one handling station serves to at least partially fill an open-mouth bag and at least one especially different handling station is provided with a weighing unit. A bag receiving unit for receiving a bag is connected to each of the holding devices. The bag receiving unit is configured to receive and guide the bag. The bag receiving unit in the handling station equipped with a weighing unit can be at least temporarily decoupled from the power transmission. Thus, the holding device allows separate weighing of the receiving unit with the bag open mouth.
    [008] The apparatus according to the invention has many advantages. An important advantage of the apparatus according to the invention is that a still empty open mouth bag intended for filling is received in a bag receiving unit at the acquisition station. Then, the bag receiving unit is taken to the other handling stations by means of the mobile part where the open mouth bag is filled. To allow an accurate filling weight, the bag receiving unit can be uncoupled from the holding device in the handling station equipped with a weighing unit so as to allow an accurate weighing of the receiving unit with the bag and material inside the same.
    [009] In preferred embodiments the apparatus comprises a filling carousel that acts as the moving part where the different handling stations are distributed over the circumference and preferably arranged stationary. The different handling stations can, as a whole, be connected to a stationary part, such as a base frame or the like, or each of them can be separately fixed to the ground. In particular, the filling carousel is rotatably configured. The filling carousel preferably rotates in increments or moved in operation. The apparatus is particularly preferably suitable and configured for filling bulk products into empty open mouth bags.
    [0010] A bag receiving unit is in particular configured as a receiving box. The receiving unit receives an open mouth bag for filling and guides the open mouth bag during movement of the moving part. Preferably, after weighing in the receiving unit of the handling station which is equipped with a weighing unit, the receiving unit is again connected to the holding device before moving the holding device further. The weighing unit comprises at least one weighing cell.
    [0011] The holding device may be a rotating arm connected to a filling carousel and may represent a fastener for securing the receiving unit.
    [0012] Preferably, a plurality of different handling stations is provided. In addition to a receiving station for receiving an open mouth bag for filling at least one handling station, at least one handling station for filling high-speed flow and at least one handling station for filling filling in low speed flow. Particularly preferably, other handling stations are used for compaction. It is possible and preferred for the handling station for filling low speed flow simultaneously to also serve as a weighing station. Then the weighing unit can determine the weight while filling the low speed stream thus allowing for accurate weighing. Between the handling station for high speed flux filling and the handling station for low speed flux filling at least one compaction station is preferably provided for de-aerating and compacting bulk products whose air-enriched volume would otherwise be too big to fill the container entirely in one step.
    [0013] In all configurations, it is preferable that the receiving box or receiving unit is of tubular configuration and comprises at least one open upper end. The open top end allows to feed an open mouth bag, intended to be filled, to the receiving unit.
    [0014] In all configurations it is preferable that a base platform can be arranged on the stationary part below the receiving unit. Particularly preferably, the base platform extends under at least a substantial part of the movement path of the bag receiving unit.
    [0015] Preferably the bag receiving unit is interchangeable and/or the base platform is height adjustable. Thus, for example, bag receiving units showing different heights can be fitted on the moving part to allow different weights to be bagged. The base platform is adjusted in height accordingly.
    [0016] Particularly preferably, the bag receiving unit is configured with an open bottom such that the base platform can support at least part of the bag with an open mouth. This configuration is very advantageous as the bag receiving unit serves to retain and guide a received open mouth bag while the base platform disposed below the bag receiving unit receives and dissipates most of the weight of the bag. open mouth. The bag receiving unit makes it possible to ensure a defined and reproducible orientation of the bags with the open mouth so as to considerably facilitate handling, in particular when dealing with small quantities.
    [0017] In preferred embodiments, a bottom plate can be inserted into the open bottom bag receiving unit which is supported on the base platform by at least one transfer station. When the movable part moves, the bottom plate is subjected to relative movement relative to the base platform. In these configurations, the bottom plate can be configured as a sliding plate or an anti-wear plate. During filling and during relative movement of the movable part, the open bag is supported on the base platform via the bottom plate. This prevents relative movement of the bottom of the bag relative to the base platform, which can cause contamination, scratches or damage to the bottom of the bag. The use of a bottom plate which, for example, slides or rolls across the base platform of the stationary part, will reliably prevent such damage or opacity of the open mouth bags intended for filling.
    [0018] Referentially, at least one locking unit is provided by means of which the bag receiving unit can be transferred from a locking position coupled with the holding device to a forcing position or uncoupling position. At least one locking unit is preferably provided, and in particular secured to the retaining device. Particularly preferably, each holding device comprises at least one locking device to allow controlled coupling and uncoupling of the corresponding bag receiving unit for each holding device.
    [0019] When transferring a bag receiving unit from the coupled locking position to an uncoupling position the bag receiving unit is preferably lowered sufficiently so that the bag receiving unit is deposited on the base platform or weighing platform located underneath.
    [0020] The weighing platform has the weighing unit connected to it so that the weighing unit can capture the weight of the weighing platform including a bag receiving unit deposited on it.
    [0021] Preferably, the locking unit comprises a height adjustable clamping cone which is provided to interact with a retaining link plate on the bag receiving unit. The retaining connection plate can, for example, comprise a locking opening for engaging the clamping cone. The conical shape of the clamping cone causes automatic centering on transfer to the locked position.
    Preferably, the bag receiving unit is raised in the locked position and the bag receiving unit can be lowered to the uncoupling position without forcing on a weighing platform. The weighing platform is preferably mechanically separated from the base platform. Preferably, the top edge of the weighing platform is flush with the top edge of the base platform. Particularly preferably, a narrow space is provided between the weighing platform and the base platform, through which the base plate slides during relative movement. The dimensions of the weighing platform are designed in such a way that an entire bag receiving unit can be placed on it. The weighing platform preferably has a surface which is less than twice the bottom surface and in particular one and a half times smaller than the bottom surface of a bag receiving unit.
    [0023] In preferred embodiments, at least one bag receiving unit and in particular each bag receiving unit is equipped with a recognition unit comprising a unique identification signal. Particularly preferably, electronic ID units such as RFID are employed. These techniques allow a sensor on the stationary part to define the identification of the respective bag receiving units. In a first test or reference operation without filling, a complete revolution makes it possible to determine the tare of all bag receiving units on average or individually in order to allow even more accurate weights. Any weight changes to the tare weight also allow capturing contamination or other weight that generates changes in the bag receiving unit and a warning signal can optionally be issued.
    [0024] In any case, a recognition unit in the bag receiving unit makes it possible to identify the type and thus the shape and size of the bag receiving unit in question. This allows a control device to definitively deduce whether or not the bag receiving units are properly connected to fill the desired product and the quantity supplied. If inadmissible combinations are recognized, further processing can be stopped or a warning signal can be issued. This recognition also allows you to automatically move the device to a suitable position.
    [0025] In preferred configurations, a filling tube is assigned to the handling station that is equipped with the weighing unit. The filling tube in the handling station equipped with the weighing unit serves, in particular, for low-speed flow filling. This handling station can be designated in its entirety as a weighing station or else as a low speed flow filling station.
    [0026] In specific preferred embodiments at least one additional handling station is also provided with a filling tube assigned to it. Likewise, a handling station does not normally comprise a weighing unit. This handling station is specially designed for high-speed flow filling. For example, a time-controlled filling can take place in high-speed flow, where for a fixedly predetermined and changeable period of 1 second, 1.5 seconds, 2 seconds, 3 seconds or the like, the material intended for filling is supplied. through the filling tube. In addition, the weighing station then determines the filled product for the high speed stream so that the weighing station can then fill the low speed stream to the desired final weight. Depending on the final weight determined in the high speed flow filling, the time period for subsequent high speed flow fillings can be reduced or increased accordingly in order to balance variations in the filled product.
    [0027] In all configurations it is particularly preferred to configure at least one of the handling stations as a compaction station. The use of multiple compaction stations is possible and preferred. In particular, at least one compaction station is used between the handling station for high-speed flux filling and the handling station for low-speed flux filling. The compaction of bulk products after filling the high-speed stream achieves a material level reduction. This allows to reduce the bag volume needed to fill a specific amount in order to save costs on bag material.
    In all configurations, it is preferable that the bag receiving unit includes a plurality of suction openings so that the wall of the bag abuts against the receiving space. A bag wall that rests comfortably against the receiving space of the bag receiving unit allows to ensure a reliable and reproducible bag shape and an open mouth bag filling mouth. This prevents errors and increases reproducibility.
    [0029] The suction openings generate a vacuum in the receiving space when receiving an open mouth bag to be filled, so as to cause the open mouth bag to be sucked into the bag receiving unit and the wall of the bag can rest snugly against the receiving space. Suction can be maintained during handling at each of the handling stations. It is possible and preferable to stop or reduce suction at the weighing station as the bag receiving unit is transferred to the uncoupled position.
    [0030] In all configurations it is preferable that the moving part is moved in an indexed way.
    [0031] The method according to the invention serves to fill fluid materials such as fluids and bulk products into empty open-mouth bags. The bagging takes place by means of an apparatus that has a stationary part and a mobile part, the mobile part is provided with several filling stations that move along the machine and each of the filling stations is provided with a retention device fixed to the moving part. The stationary part is provided with multiple distributed handling stations, wherein at least one handling station is a receiving station, which successively receives empty open-mouthed bags and wherein at least one handling station fills the bags at least partially. At least one handling station is provided with a weighing unit. A bag receiving unit for receiving a bag is connected to each of the holding devices. The bag receiving unit receives the bag open-mouthed at the receiving station and guides the bag. The bag receiving units are successively transported to the handling stations by means of the moving part. The handling station equipped with a weighing unit foresees to temporarily uncouple the respective bag receiving unit from the holding device provided at this location to carry out the separate weighing of the bag receiving unit with the bag with the mouth open.
    [0032] The method according to the invention also has many advantages, since it allows to fill in a simple and efficient way fluid materials and in particular bulk products in empty open-mouth bags. Brief description of the figures
    [0033] Other advantages and characteristics of the present invention can be taken from the exemplary embodiment that will be described below with reference to the attached figures.
    [0034] Fig. 1 a perspective view of the apparatus according to the invention;
    [0035] Fig. 2 a top sectional view of the apparatus according to Fig. 1;
    [0036] Fig. 3 is an enlarged perspective view of the apparatus according to Fig. 1;
    [0037] Fig. 4 is a further enlarged detailed perspective view of the apparatus according to Fig. 1;
    [0038] Fig. 5 a horizontal section of the apparatus according to Fig. 1;
    [0039] Fig. 6 an enlarged section;
    [0040] Fig. 7 is a detailed horizontal view according to Fig. 1; and
    [0041] Fig. 8 is an enlarged illustration of the bag unit in the uncoupling position. Detailed Description of the Invention
    [0042] With reference to figures 1 and 2, the basic structure of an apparatus (1) according to the invention which is configured as a filling machine will now be described. Figure 1 illustrates an overall perspective view of the apparatus (1) for filling bulk products and fluids into open flexible bags (3). The bags (3) processed in the apparatus (1) illustrated in figure 1 consist of a flexible material and in particular plastic material. The apparatus comprises a filling carousel (2), a bag source (70) and an intermediate silo (80) for intermediate storage of bulk products.
    [0043] In this embodiment, the bag source (70) is provided by means of a film roll (71) on which a film sheet (72) is wound. The film sheet (72) unwound from the film roll (71) is fed into a molding shoulder (73). Where the film sheet (72), which consists of a plastic film, is guided around the molding shoulder (73) and a longitudinal seam is welded to create a continuous tubular film.
    [0044] The bottom of the bag is manufactured in the transfer station (60) making the appropriate welding seams transversely to the longitudinal extension of the tubular film. The tubular film with a suitable cross-section is conveyed and brought into the receiving box (62) of the transfer station (60). The open mouth bag (3) is intended for filling, where it is properly received. For delivery, the tubular film is cut to a certain size in order to manufacture the open top end of the open mouth bag (3).
    [0045] It is also possible to manufacture the open top bags by means of a prefabricated mold, for example extruded tubular films or else completely prefabricated flexible bags or bags used to feed the system from a tank or device similar.
    [0046] Figure 1 illustrates the pivoting position (63) of the transfer station (60), while Figure 2 illustrates the pivoting position (64) in which the open-mouth bag (3), intended for filling, is transferred to the handling station (41) which acts as the receiving station, where the open-mouth bag (3) intended for filling is delivered to the filling station (12), as illustrated in figure 2.
    [0047] As can be seen in figures 1 and 2, the apparatus (1) comprises a basic structure to which the filling carousel (2) and the other components are connected. The stationary part (5) of the apparatus (1) comprises a base platform (55). The base platform (55) extends under the movement path of the bag receiving units (30) arranged in the filling stations (11) to (18).
    [0048] Each of the filling stations (11) to (18) has a holding device (20) fixed to the moving part (6). Each retaining device (20) in turn carries a bag receiving unit (10) which receives, retains and guides the bags for filling.
    [0049] This filling carousel (2) is provided for indexed operation so that the filling stations (11) to (18) and the bag receiving units (10) arranged thereon are successively transported to the filling stations. individual handling (41) to (48).
    [0050] The receiving station which is the handling station (41) assumes an open mouth bag (3) intended to be filled by means of a bag receiving unit (10). Figure 2 shows the control taking of the open mouth bag (3), destined for filling, by means of the bag receiving unit (10) in the filling station (11). The filling carousel (2) is provided for indexed operation so that, following an index, the open mouth bag (3) taken last is located in the handling station (42) which is provided for the filling of flow. high speed.
    [0051] As can be seen in Figure 1, the handling station (42) has a filling turbine (82), a servo unit (83) and a filling tube (86) assigned to it. The filling tube (86) enters a powder cap (87). During the filling process, the powder cover (87) is moved down into the bag receiving unit (10). A tubular portion within the powder cap (87) extends telescope-shaped around the filling tube (86) so that the filling tube (86) is substantially extended downwards. This reduces the drop height of bulk products into the open mouth bag intended for filling so as to reduce the amount of dust for removal preventing contamination of the apparatus (1). Furthermore, this prevents further enrichment of the already filled product with air due to an unnecessarily large drop height. It is possible to compact this filling station, for example, by means of a bottom vibrator, already during the filling process.
    [0052] After moving the mobile part (6) forward, the bag intended for filling is transported to the compaction station (43) where the bagged material is de-aerated and compacted. On the next movement, the open-mouth flexible bag (3) reaches the handling station (44). This is where another filling turbine (82) driven by an engine (81) is located. Bulk products intended to be filled are fed in low velocity flow to the open mouth bag (3) through a filling tube (86). Again, a cover (87) is provided which enters the bag receiving unit (10) from above to reduce the drop height of the bulk products and therefore the dust content and aeration.
    [0053] Both the handling station (42) and the handling station (44) are provided with servo units (83) in the respective filling tubes (86) allowing the pre-adjustment of the open cross section of the filling tubes ( 86). In this way, for example, when filling different materials or identical materials with varying properties, the filling cross-section in high-speed flow and the filling cross-section in low-speed flow are preset to obtain optimum filling properties.
    [0054] After filling in low-speed flow with the handling station (44) three other handling stations (45), (46) and (47) follow, each providing compaction of the already filled material. The already filled open mouth bag is transported out to the handling station (48). The handling stations (45), (46) and (47) can be configured as a compaction station.
    [0055] Each bag receiving unit (10) configured as a receiving box (30) is provided with a recognition unit (54) which responds to optical, magnetic or electronic requests and in particular to return a single signal. In simple cases a barcode can be provided. It is preferable to use RFID (Radio Frequency Identification) for contactless recognition of the corresponding bag receiving unit (10). This allows to unambiguously identify and assign to the bag receiving unit (10) in question. This is significant, for example, when changing the product or the size of the bags intended for filling to ensure the connection of corresponding bag receiving units (10) to the filling carousel (2). It also allows to make other machine settings related to the format.
    [0056] Receiving boxes (30) of different heights can be provided to fill different quantities. The handling stations are oriented at the upper ends of the receiving boxes (30) so as to arrange their upper ends (32) (see Fig. 5) on the same level, in the case of different heights of the receiving boxes (30). In order to carry out the longitudinal compensation, the height level of the base platform (55) arranged below is therefore shifted accordingly.
    [0057] The filling carousel (2) is supported to rotate around the rotation axis (8) in its entirety. A transfer of an open-mouth bag (3) intended for filling (at present) to the filling station (11) takes place in the handling station (41) in the pivoting position (64) of the articulated arm (61). The articulated arm (61) with the coupling bar (65) form a parallelogram for the drop box (62) whose basic structure is similar to the drop box (30).
    [0058] Each of the retaining devices (20) is provided with a pair of support arms (21) and (22) which are covered from above by a cover cap (25) to protect from dust and contamination.
    [0059] Height adjusters (85) are provided for height adjustment of the base platform (55) and the separate weighing platform (56). Individual height adjustment components may comprise a drive while other height adjustment components are for guidance only.
    [0060] Although the weighing platform (56) is mechanically decoupled from the base platform (55), it is adjusted in height simultaneously with the base platform in the same way. A weighing unit (7) not visible in figures 1 and 2 is assigned to the weighing platform to measure the weight of the weighing platform (56) and placed on it, a receiving box (30) including an open mouth bag ( 3) placed in it and the bulk products already filled (4). By deducting the known weights of the receiving box (30), the weight of the bag material (3) and the weighing platform (56), the weight of the already filled bulk products (4) can be calculated using the gross method.
    [0061] If any additional or similar bulk goods accumulate over time on the weighing platform (56) or in individual receiving boxes (30), this can be taken into account by means of an empty run and thus capture the tare weights. If the tare obtained by verification deviates too much from the original tare, a recommendation for maintenance or cleaning can be issued.
    [0062] Figure 3 illustrates an enlarged schematic perspective view of part of the apparatus (1), in which the details of the transfer station (60) can be recognized on the left.
    [0063] The swivel arm (61) and the coupling bar (65) of the transfer station (60) are located in the swivel position (64), in which an open-mouth bag (3) for filling is delivered from the drop box (62) to the drop box (30) located directly below. The receiving box (62) and the receiving boxes (30) are provided with suction openings (34) (see figure 4) through which air is sucked so that an open mouth bag (3) is arranged in the box. The receiving box (62) is fitted snugly against the inner wall of the receiving box (62).
    [0064] After positioning the receiving box (62) in the pivoting position (64) shown in Figure 3, the suction in the receiving box (62) is disabled and the suction in the receiving box (30), acting as the receiving unit (10), is activated so that the open mouth bag (3) is moved downwards from the receiving box (62) into the receiving box (30), where the bag (3) returns to be snugly fitted against the inside wall of the drop box (30).
    [0065] In figure 3 one can also see the dust cover (87) in the handling station (44). A dust removal hose, not shown, is attached to the upper end of the dust cap (87) to transport dusty air.
    [0066] Each of the reception boxes (30) comprises a reception space (31) with a cross section, in this case rectangular, which is approximately constant along the height. Preferably, the inner walls conically diverge slightly upwardly to facilitate insertion from above and upward removal. A preferred angle is between 0.25° and 2° and may be, for example, 0.35° or 0.5°. The dimensions of the rectangular cross section depend on the desired dimensions of the already filled open mouth bags. The dimensions are predetermined by the dimensions of the receiving boxes (30) and the flexible bag material is selected accordingly or vice versa.
    [0067] With the exception of the handling station (44) where the weighing unit (7) is provided, the receiving boxes (30) in the other handling stations are each located above the base platform (55).
    [0068] As can be seen in Figure 3, the handling stations (45-47) are each or in their entirety provided with at least one compaction unit (84) in the form of, for example, a unbalanced vibrator or a magnetic vibrator and at least one spring (79) to obtain efficient compaction of the material. Compaction devices that act from the top are also possible.
    [0069] Figure 4 shows a further enlargement of a perspective view of the filling carousel (2), together with a receiving box (30) only in a holding device (20). Suction openings (34) can be seen inside the receiving box (30). The receiving box (30) is provided with retaining connecting plates (40) with which the receiving box (30) is fixed to the support arms (21) and (22) of the retaining device (20). The bottom end (33) of the drop box (30) shows a service door (39) to provide access to the intermediate product of the double wall of the drop box (30). When multiple intermediate spaces are provided arranged one above the other and separated from each other, preferably a corresponding number of service ports (39).
    [0070] A receiving box (30) can be uncoupled by means of a control device not shown in detail. Manual decoupling is possible at any time via the unlocking device (26).
    [0071] In figure 4 one can also recognize the suction duct (23) in the holding device (20) through which air is sucked through the suction openings (34) in the receiving box (30). Above the service door (39) shown in a solid line, another service door (39) is shown in a dashed line in the case of two intermediate spaces arranged on top of each other.
    [0072] Figure 5 illustrates a side view in partial section of the apparatus (1), where you can see the rotation axis (8) of the filling carousel (2) and the drive (19) of the filling carousel (2) .
    [0073] At the lower end of the receiving boxes (30), the lower plates (50) are on the base platform (55) so that a bag (3) received in the receiving box (30) is supported on the top surface of the bottom plate (50). The bottom surface of the lower plate (50) is in sliding contact with the base platform (55) when the filling carousel (2) is moved later.
    [0074] Thus, the lower plate (50) represents a sliding plate or anti-wear plate that protects the bottom of an open mouth bag (3), intended for filling, from being contaminated or damaged while the filling carousel (2 ) rotates or advances.
    [0075] The receiving box (30) is shown in figure 5 in cross section. It can be seen that an air chamber (37) extends from the upper end (32) to the lower end (33) between the inner wall (35) and the outer wall (36). A plurality of suction openings (34) are arranged in the inner wall (35) for the bag wall to be against the receiving space (31) of the receiving box (30).
    [0076] The intermediate space (37) is provided with a vacuum through the suction branch (38). The illustrated suction branch (38) ends slightly away from the suction duct (23) connected to the moving part (6). The suction duct (23) couples to the suction connection (52) at the specified fixed angular positions. A sealing connection is provided by means of the sliding sleeve (53) which slides over the outer surface of the annular de-aeration duct (9) while the movable part (6) rotates.
    [0077] The lower plate (50) is also provided with suction openings (34) through which air is preferably sucked at the receiving station (41) to suck an open-mouth bag (3) to be filled in the box. (30) above or to support movement. It is also possible to provide, instead of suction openings (34) in the bottom plate, additional controlled suction openings in a bottom region of the receiving box (30).
    [0078] Figures 5 and 6 show in broken lines a variant in which several regions (31a), (31b) and (31c) are provided along the height for a coupled or otherwise separately controlled suction. A lower zone (31a) is provided with additional suction openings (34) which are shown having a rectangular cross section. Or, these suction openings (34) can be round, oval or grooved or otherwise molded. This configuration makes it possible to partially omit the suction openings (34) in the bottom plates and in particular entirely.
    [0079] To deliver an open mouth bag (3) intended to be filled to the bag receiving unit (10) or the receiving box (30), air can first be sucked in, for example , only in the upper region (31c) through the suction openings (34) in the upper region (31c) along the drawn arrow. When the bag (3) has already been sucked some distance into the receiving box (30), the suction can be activated or reinforced in the middle region (31b) while in the upper region (31c) the suction is reduced and optionally temporarily completely disabled. Finally, suction occurs in the lower region (34) so that a bag (3) is placed completely down.
    [0080] It is also possible and preferable then to emit a jet of air from top to bottom in the open bag (3), which takes the bag (3) held open reliably and reproducibly downwards and positions it on the bottom plate (50) or on the base platform (55), in the event that a bottom plate (50) is not provided. The intensity of the jet of air emitted through one or more air nozzles can be determined by experimentation. Alternatively or in addition to an air jet, a mechanical pressing device can force the bottom of the bag downwards. At the same time, the suction action through the suction openings (34) can be slightly reduced to ensure a reliable lowering of the open bag (3) in the bag receiving unit (10).
    [0081] Figure 6 illustrates a cross section of the receiving box (30) transverse to the cross section in Figure 5. The receiving box (30) is retained in the retaining device (20) by means of the retaining lateral link plates (40). The manual release device (26) is provided on the side. In the lower region (31a), the lower plate (50) rests on the base platform (55) also provided with suction openings (34) which are coupled with the suction connection (51) below the lower platform (55). The suction connection is connected to a suction hose, not currently shown.
    [0082] It can be seen that a plurality of suction openings (34) are each disposed in the lower region (31a), the middle region (31b) and the upper region (31c). The suction openings in the different regions (31a) to (31c) can preferably be controlled separately if separating strips (35a) and (35b), shown in dashed lines, are provided, which subdivide the intermediate space (31) into separate air chambers (37a), (37b) and (37c). Control can be provided by separately controlled valves.
    [0083] Otherwise, it is possible to provide a specific suction profile through the height of the receiving box (30) through the number and types of suction openings or through their cross sections or through fixed flow cross sections and flow paths.
    [0084] Figure 6 further illustrates a configuration of the suction openings (34) in the bottom plate (50) which is conceivable in all configurations. The lower surface of the bottom plate is formed mainly or even predominantly by an air permeable support unit (50b) which in this case comprises a wire fabric or multiple wire fabric. Because the suction opening (34) is covered by the wire mesh (50b), the bag intended for filling can rest with its entire bottom on the bottom surface. Any bagging or deformation of the bottom due to full weight and/or due to suction can be largely or totally avoided. It is also possible to use wire mesh or other components to support the lower surface. In all cases, at least one separate support element may be provided under the wire fabric to support said wire fabric as is schematically illustrated in Figure 6.
    [0085] Figure 7 illustrates a side view of part of the apparatus (1) with the handling station (44) visible. The handling station (44) is provided with the weighing unit (7) which can weigh the separately configured weighing platform (56) and the parts located thereon. Figure 7 shows a state as it is present as the handling station (44) has been reached. At this time, the receiving box (30) is still firmly coupled to the holding device (20) via the locking unit (24), so that the receiving box (30) is not shown on the weighing platform (56 ), but located a short distance above.
    [0086] The support on the weighing platform (56) is the bottom plate (50) which is free to move in the vertical direction relative to the receiving box (30) while being configured high enough for the receiving box (30 ) pull the bottom plate (50) along the rotational movement of the filling carousel (2). Thus, there is a relative sliding movement between the bottom surface of the lower plate (50) and the weighing platform (56), respectively the base platform (55), as the movable part (6) is moved later. To ensure a better transfer of the lower plate (50) from the base platform (55) to the weighing platform (56) or in the next movement from the weighing platform (56) to the base platform (55), the weighing platform (56) is provided with a moment platform (57) and the base platform (55) is provided with a moment platform (58).
    [0087] A dashed line in Figure 7 shows an open-mouthed bag (3), which for clarity is shown away from the interior wall (35). The open mouth bag (3) virtually comes to rest firmly against the inner wall (35). Some bulk products (4) are illustrated as an example in the open mouth bag (3).
    [0088] The base platform (55) is adjustable in height and can be adjusted high or even higher, for example, up to the dashed line (89), to mount receiving boxes (30) suitable for the ( 41) to (48). After an exchange, bags having correspondingly smaller volumes can be filled.
    [0089] Figure 8 illustrates an enlarged detail view of a receiving box (30) at the weighing station (44) with the receiving box (30) shown in the lowered decoupling position (76). For decoupling, the clamping cone (27) of the locking unit (24) is extended so that the receiving box (30) previously lifted by the retaining connecting plates (40) is lowered and rests on the weighing platform ( 56) at the weighing station (44). The extension of the lifting unit, respectively, of the blocking unit (24), achieves a decoupling of the weight of the receiving box (30) from the corresponding filling station (20). This makes it possible to very accurately determine the weight so far introduced into the bag (3).
    [0090] To facilitate the reduction of the receiving box in relation to the full bag, the connection of the suction duct (23) with the suction shunt (38) can be interrupted at the weighing station to allow the relative movement between the bag and the reception box. Even if the receiving box is not fully lowered, the receiving box together with the bag rests on the weighing platform (56) by means of a friction fit, which results in an exact gross weighing as described.
    [0091] For example, if bulk products intended for filling accumulate in the intermediate space (37), the service door (39) can be opened as needed to empty and optionally clean the intermediate space (37) .
    [0092] Figure 8 shows in dashed line a pair of recesses or slots (50a) in the lower plate (50) that serve to receive retaining units or handles (30a) in the receiving box (30). Components (50a) and (30a) ensure that the bottom plate (50) will not fall off when the drop box (30) is manually lifted. In simple cases, the support units or handles (30a) in the receiving box (30) are manufactured by folding over the sheet metal rim of the receiving box (30).
    [0093] The receiving box (30) can be supported by three feet (30b) in all configurations. At least one of the feet (30b) can be adjustable. Preferably, all feet (30b) are adjustable. This prevents the drop box (30) from resting on its outer frame as the drop box (30) is lowered onto the weighing platform (56). In case of any manufacturing tolerances, the drop box (30) can be prevented from tilting slightly in any direction. Thus, the receiving box (30) can be prevented from leaning against the fixing brackets that would tamper with the weight. One, two or three adjustable feet (30b) ensure that the receiving box (30) is in a defined position, but not in the circumferential rectangular frame. This allows for optimal adjustment of each receiver box (30).
    [0094] It is also possible to omit the feet (30b) so that the receiving box (30) rests on its circumferential rectangular structure, if sufficiently close tolerances are ensured.
    [0095] In general, the invention provides an advantageous apparatus and an advantageous method that allow a simple and efficient transfer to a filling station of open-mouth bags intended for filling and which are still empty. The bottom of the open mouth bag (3) is transported into the receiving box (30) due to gravitation and supported by suction. Due to the suction through the suction openings (34) the wall of the bag comes to rest snugly against the receiving box (30) so that the open-mouth bag (3) assumes an ideally desired shape even before filling. This allows for efficient and material-saving filling. Furthermore, an optically attractive shape for the open mouth bag (3) to be filled is ensured. Furthermore, the dust cover (87) is able to safely enter the receiving box (30) and in particular even the open bag (3).
    [0096] The receiving boxes (30) guide the open-mouth bags (3), intended to be filled during transport by means of the moving part (6). To increase the weighing, the receiving box (30) in the weighing station is brought to an uncoupling position to determine the remaining weight to be filled and in particular to control the filling of the remainder in the open mouth bag (3) in flow. of low speed. Several stations are provided where the filled material is compacted. Vibration is possible either from below or above, or else vacuum or vibratory activity or the like can be done in the open-mouth bag (3) to effect efficient deaeration and thus compaction.
    [0097] List of reference numbers: 1 device 2 filling carousel 3 bag with open mouth 4 bulk products 5 stationary parts 6 moving part 7 weighing unit 8 rotation axis 9 deaeration duct 10 bag receiving unit 11- 18 filling station 19 drive 20 holding device 21-22 bracket arm 23 suction duct 24 locking unit 25 cover cap 26 unlocking device 27 clamping cone 28 detector 29 elevator 30 receiving box or receiving box 30a handle 30b foot 31 receiving space 31a lower region 31b central region 31c upper region 32 upper end 33 lower end 34 suction opening 35 inner wall 35a band separating 35b band separating 36 outer wall 37 air chamber 37a air chamber 37b chamber air chamber 37c air chamber 38 suction branch 39 service port 40 retaining plates 41-48 handling station 50 bottom plate 50a slot 50b wire mesh 51-52 suction connection 53 sleeve slider 54 recognition unit 55 base platform 56 weighing platform 57 degree of moment 58 degree of moment 60 delivery station 61 swivel arm 62 drop box 63 swivel position 64 swivel position 65 coupling rod 66 drive 70 bag source 71 film roll 72 film sheets 73 molding edge 75 locking position 76 decoupling position 79 spring 80 intermediate silo 81 turbine motor 82 turbine 83 servo unit 84 compaction unit 85 height adjustment 86 filling tube 87 dust cap 88 hose coupling 89 highest position
    权利要求:
    Claims (18)
    [0001]
    1. Apparatus for bagging fluid materials, such as fluids and bulk products (4), in flexible, empty open-mouth bags (3), comprising a stationary part (5) and a mobile part (6), in which the The mobile part (6) is provided with multiple filling stations (11-18) which move along the apparatus and a holding device (20) is fixed to the mobile part (6) at each of the filling stations (11- 18) and wherein multiple handling stations (41-48) are provided distributed in the stationary part (5), wherein at least one handling station (41) is configured as a receiving station for receiving empty open-mouth bags ( 3) and at least one handling station (42) is provided for at least partially filling a bag (3) and wherein at least one handling station (44) is provided with a weighing unit (7), characterized in that of the bag receiving unit (10) is attached to each of the retaining devices ( 20) to receive a bag (3), the bag receiving unit (10) being configured to receive and guide the bag (3) and that the bag receiving unit (10) in the handling station (44) equipped with a weighing unit (7), it can be temporarily decoupled from the power transmission to the holding device (20) to allow a separate weighing of the bag receiving unit (10) with the bag (3).
    [0002]
    2. Apparatus according to claim 1, characterized in that the bag receiving unit (10) is tubular in configuration and comprises at least one open upper end (32).
    [0003]
    Apparatus according to claim 1 or 2, characterized in that a base platform (55) is arranged in the stationary part below the bag receiving unit (10).
    [0004]
    4. Apparatus according to any one of the preceding claims, characterized in that the bag receiving unit (10) is interchangeable and the base platform (55) is adjustable in height.
    [0005]
    5. Apparatus according to any one of the preceding claims, characterized in that the bag receiving unit (10) is configured with an open bottom (33) in such a way that the base platform (55) can support the less part of the open mouth bag (3).
    [0006]
    Apparatus according to any one of the preceding claims, characterized in that a bottom plate (50) can be inserted into the open bottom of the receiving unit (10) which is supported on the base platform (55) at least in the station. transfer and whose bottom of the plate (50) is subject to a movement relative to the base platform (55) in the movement of the movable part (6).
    [0007]
    Apparatus according to any one of the preceding claims, characterized in that the bottom plate is configured as a sliding plate.
    [0008]
    8. Apparatus according to any one of the preceding claims, characterized in that a locking unit (24) is provided with which the bag receiving unit (10) can be transferred from a coupled locking position (75) with the retaining device (20) to an uncoupling position (76).
    [0009]
    9. Apparatus according to any one of the preceding claims, characterized in that the locking unit (24) comprises a height-adjustable clamping cone (27) which is provided to interact with a retaining link plate (40 ) on the bag receiving unit (10).
    [0010]
    10. Apparatus according to any one of the preceding claims, characterized in that the bag receiving unit (10) is raised in the locking position (75) and in which the bag receiving unit (10) can be lowered to the uncoupled position without force (76) on a weighing platform (56).
    [0011]
    11. Apparatus according to any one of the preceding claims, characterized in that the weighing platform (56) is mechanically separated from the base platform (55).
    [0012]
    12. Apparatus according to any one of the preceding claims, characterized in that each bag receiving unit (10) comprises a recognition unit (54) having a unique ID signal.
    [0013]
    13. Apparatus according to any one of the preceding claims, characterized in that a filling tube is allocated in the handling station (44) equipped with the weighing unit (7).
    [0014]
    14. Apparatus according to any one of the preceding claims, characterized in that at least one of the handling stations (43, 45-47) is configured as a compaction station.
    [0015]
    Apparatus according to any one of the preceding claims, characterized in that the bag receiving unit includes a plurality of suction openings so that the bag wall is accommodated against the receiving space.
    [0016]
    16. Apparatus, according to any one of the preceding claims, characterized in that the mobile part is moved in an indexed manner.
    [0017]
    17. Method for bagging fluid materials such as fluids and bulk products (4) into open (3) flexible and empty open-mouth bags comprising an apparatus (1) with a stationary part (5) and a movable part (6 ), wherein the movable part (6) is provided with multiple filling stations (11-18) which move along the apparatus (1) and a holding device (20) is fixed to the movable part (6) in each one of the filling stations (11-18) and wherein multiple handling stations (41-48) are provided distributed in the stationary part (5), wherein at least one handling station (41) acting as a station The acquisition unit successively receives empty open bags (3) and at least one handling station (42) at least partially fills the bags (3) and wherein at least one handling station (44) is provided with a handling unit. weighing (7), characterized in that the bag receiving unit (10) is fixed to each of the devices holding (20) for receiving a bag (3), wherein the bag receiving unit (10) receives and guides the bag (3) at the receiving station and the mobile part (6) successively carries the receiving units of bag (10) to the handling stations (41-48) and that the holding device (20) provided in the handling station (44), equipped with a weighing unit (7), temporarily uncouples the bag (10) being handled from the force transmission to carry out separate weighing of the bag receiving unit (10) with the bag (3).
    [0018]
    18. Method according to claim 17, characterized in that the material is inserted into the open-mouth bag (3) at the handling station (44) equipped with the weighing unit (7).
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    同族专利:
    公开号 | 公开日
    BR112017005722A2|2018-01-30|
    US10589881B2|2020-03-17|
    EP3197784B1|2018-09-19|
    CN106715272B|2019-05-03|
    EP3197784A1|2017-08-02|
    US20170291727A1|2017-10-12|
    CN106715272A|2017-05-24|
    WO2016046312A1|2016-03-31|
    ES2703765T3|2019-03-12|
    CA2960560C|2021-08-24|
    DE102014113864A1|2016-03-24|
    CA2960560A1|2016-03-31|
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    法律状态:
    2020-03-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-03-30| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-05-18| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 24/09/2015, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
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    DE1020141138643|2014-09-24|
    DE102014113864.3A|DE102014113864A1|2014-09-24|2014-09-24|Apparatus and method for filling flowable materials|
    PCT/EP2015/071965|WO2016046312A1|2014-09-24|2015-09-24|Device and method for packaging flowable materials|
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