Improved applicability of bag supply device

Abstract

This invention discloses a bag preparation and supply device with improved applicability, belonging to the field of bag packaging technology. It includes a frame and a bag preparation mechanism, a bag suction mechanism, and a bag sorting mechanism mounted on the frame. It also includes a first positive and negative threaded screw double-slider module mounted on the frame and a second positive and negative threaded screw double-slider module mounted on the bag preparation mechanism. Each of the two sliders of the first positive and negative threaded screw double-slider module is equipped with a bag sorting plate, which are parallel to each other and used to sort bags for the bag sorting mechanism. The first and second positive and negative threaded screw double-slider modules cooperate and operate synchronously, so that the bag sorting plate driven by the first positive and negative threaded screw double-slider module is vertically aligned with the baffle driven by the second positive and negative threaded screw double-slider module. The baffle limits the position of a stack of pre-made bags moving to the bag suction mechanism, ensuring that the position of the stack of pre-made bags entering the bag suction mechanism corresponds to the position of the two bag sorting plates on the bag sorting mechanism. This invention improves applicability and efficiency.

Description

Technical Field

[0001] This invention belongs to the field of bag packaging technology, and more specifically, this invention relates to a bag preparation and supply device that improves applicability. Background Technology

[0002] In the field of bag packaging equipment, the bag preparation, picking, and loading devices for woven bags and plastic bags are core functional components, and their performance directly affects the operating speed and stability of the bag packaging machine. In the prior art, a Chinese patent with authorization announcement number CN103303525B discloses a bag packaging machine with dual bag handling functions. Its bag preparation mechanism is ingeniously designed, including a bag preparation frame, a first motor, a first drive shaft, a first driven shaft, two first roller chains, several flat plates, and several transverse baffles. These transverse baffles are cleverly fixed on the flat plates, forming multiple rotating stations, each capable of reliably carrying a stack of pre-made bags, thus achieving smooth transport of pre-made bags from the outside to the inside of the frame.

[0003] However, while this design performs excellently in conveying pre-made bags, the fixed size of the rotating station becomes a bottleneck to its applicability. In practice, when it is necessary to change pre-made bags of different sizes at this fixed-size station, a problem often arises: how to ensure that the pre-made bags can be flatly and accurately dragged and centered on the pallet by the bag-sorting mechanism. This challenge mainly stems from the mismatch between the size of the pre-made bags and the size of the rotating station, as well as the limited applicability of the bag-sorting mechanism to pre-made bags of different sizes, thus affecting the overall operating efficiency of the equipment.

[0004] To address this challenge, existing technologies employ a dual bag-feeding function, configuring two auxiliary bag-feeding components, each equipped with a drive to move the bag-feeding seat inwards. While this design cleverly pushes the pre-made bags on the pallet, centering them on the pallet, thus mitigating some of the problems caused by the fixed dimensions of the rotating station, this frequent use of two drives to adjust the position of each pre-made bag not only increases the operational burden on the equipment but may also lead to accelerated wear and tear on mechanical components and an increased failure rate. Therefore, while this design improves the equipment's applicability, it also presents challenges to stability and reliability, necessitating the search for more optimized solutions to improve the current situation. Summary of the Invention

[0005] One object of the present invention is to address at least the aforementioned deficiencies and to provide at least the advantages described below.

[0006] This invention provides a bag preparation and supply device with improved applicability. By aligning the bag sorting plate and the baffle synchronously, this invention solves the problem of applicability of the fixed size of the rotating station in the prior art to prefabricated bags of different sizes. This invention ensures the stability and accuracy of the bag sorting process and improves the success rate and efficiency of bag sorting.

[0007] This invention provides a bag preparation and supply device with improved applicability, comprising a bag preparation mechanism and a bag sorting mechanism, wherein the bag sorting part of the bag sorting mechanism is located above the bag preparation mechanism; the bag preparation mechanism has a hollowed-out bottom for placing stacked pre-made bags; a second positive and negative threaded screw double slider module is provided in the hollowed-out bottom, and vertical baffles and telescopic baffles are respectively provided on the double sliders of the second positive and negative threaded screw double slider module; a first positive and negative threaded screw double slider module is provided across the pre-made bag transport channel of the bag sorting mechanism, and two bag sorting plates are provided on the double sliders of the first positive and negative threaded screw double slider module; a linkage mechanism is provided between the first positive and negative threaded screw double slider module and the second positive and negative threaded screw double slider module, such that when the distance between the double sliders of the first positive and negative threaded screw double slider module is adjusted to adapt to the width of the pre-made bag, the distance between the double sliders of the second positive and negative threaded screw double slider module will also be adjusted accordingly to achieve adaptation to pre-made bags of different widths.

[0008] Specifically, it includes a frame and a bag preparation mechanism, a bag suction mechanism, and a bag sorting mechanism installed on the frame. The bag preparation mechanism is used to place one or more stacks of pre-made bags and move the pre-made bags one stack at a time to the bag suction mechanism. The bag suction mechanism is used to suction the stack of pre-made bags that have moved to the bottom of the bag suction mechanism and suck up the closed end of the topmost single pre-made bag. The bag sorting mechanism is used to lift the single pre-made bag sucked up by the bag suction mechanism and sort it into a horizontal state, completely independent of the stack of pre-made bags below, and supply it to the robot arm of the next process to open the corresponding pre-made bag.

[0009] It also includes a first positive and negative threaded screw double slider module mounted on the frame and a second positive and negative threaded screw double slider module mounted on the bag preparation mechanism. Each of the two sliders of the first positive and negative threaded screw double slider module is provided with a bag sorting plate. The two bag sorting plates are parallel to each other and are used to sort the bags for the bag sorting mechanism. The first positive and negative threaded screw double slider module and the second positive and negative threaded screw double slider module cooperate and move synchronously so that the bag sorting plate driven by the first positive and negative threaded screw double slider module is aligned vertically with the baffle driven by the second positive and negative threaded screw double slider module. The baffle is used to limit the position of a stack of pre-made bags moving to the bag suction mechanism, so that the position of the stack of pre-made bags moving into the bag suction mechanism corresponds with the position of the two bag sorting plates on the bag sorting mechanism.

[0010] Preferably, the first positive and negative threaded screw dual slider module includes a first positive and negative threaded screw, two sliders, a linear guide rail, and two first support seats; the two first support seats are fixed on both sides of the frame, and the two ends of the first positive and negative threaded screw are rotatably mounted on the two first support seats through bearings. The first positive and negative threaded screw is parallel to the support rod of the bag sorting mechanism and perpendicular to the bag sorting plate. The two sliders are respectively threaded onto the positive and negative threaded sections of the first positive and negative threaded screw and can slide along the linear guide rail, thereby driving the two bag sorting plates on the two sliders to move closer or further apart.

[0011] Preferably, the bag preparation mechanism includes a square bag preparation compartment and a moving mechanism. The bottom of the bag preparation compartment is formed by multiple square rods laid horizontally at intervals to create a perforated bottom. The length direction of the multiple square rods is parallel to the length direction of the first positive and negative threaded screws. The moving mechanism includes a moving frame and a second cylinder. The moving frame is slidably disposed on the bottom of the compartment. The second cylinder drives the moving frame to slide along the length direction of the square rods to push a stack of pre-made bags on the bottom of the compartment into the space below the bag suction mechanism.

[0012] Preferably, the system also includes two guide rails located below the cutouts of the plurality of square rods and parallel to the plurality of square rods, and the lower end of the movable frame is provided with wheels that match the two guide rails.

[0013] Preferably, the second positive and negative threaded screw dual-slider module includes a second positive and negative threaded screw, a first slider, a second slider, a vertical baffle, a telescopic baffle, a third cylinder, a linear guide rail, and two second support seats; the two second support seats are fixedly disposed below the plurality of square rods, the two ends of the second positive and negative threaded screw are rotatably disposed on the two second support seats via bearings, the second positive and negative threaded screw is parallel to the first positive and negative threaded screw, the first slider is located near one end of the bag compartment, the second slider is located in the middle of the bag compartment, the vertical baffle is disposed on the first slider, and the telescopic baffle slides through the... The second slider is driven by the third cylinder to move the telescopic baffle up and down. When the upper end of the telescopic baffle moves upward above the bottom of the bin, it can limit a stack of pre-made bags on the bottom of the bin between the telescopic baffle and the vertical baffle. The first slider and the second slider are respectively threaded onto the positive and negative thread sections of the second positive and negative thread screw, and can slide along the linear guide rail, thereby causing the vertical baffle and the telescopic baffle to move closer or further away from each other, so that the stack of pre-made bags located between the telescopic baffle and the vertical baffle corresponds to the position between the two bag sorting plates on the bag sorting mechanism.

[0014] Preferably, the vertical baffle comprises two or more plate bodies, and the telescopic baffle comprises two or more plate bodies. The vertical baffle, the telescopic baffle, the bag sorting plate, and the movable frame are parallel to each other. The lower ends of the two or more plate bodies of the telescopic baffle are all fixed to the same horizontal plate. The third cylinder is disposed between the horizontal plate and the second slider, and the piston end of the third cylinder is connected to the horizontal plate to drive the two or more plate bodies of the telescopic baffle to move up and down.

[0015] Preferably, the linkage mechanism includes a first gear, a second gear, and a chain ring. The first gear is located at one end of a first positive and negative toothed screw, and the second gear is located at one end of a second positive and negative toothed screw. The first gear and the second gear have the same specifications, and the chain ring is wound between the first gear and the second gear for synchronous rotation.

[0016] Preferably, the device further includes a powered roller, a first motor, a non-powered bag-pressing wheel assembly, and a fourth cylinder. The powered roller is positioned between the ends of the two roller chains of the bag-sorting mechanism and a transition plate. The top surface of the powered roller is parallel to and on the same plane as the two roller chains. The transition plate is close to and parallel to the top surface of the powered roller. The axial direction of the powered roller is parallel to the support rod of the bag-sorting mechanism. The first motor drives the powered roller to rotate, thereby moving the pre-made bags backward. The non-powered bag-pressing wheel assembly consists of two coaxially arranged rubber rollers, with the axial direction of the rollers parallel to the axial direction of the powered roller. The non-powered bag-pressing wheel assembly is located directly above the top surface of the powered roller. The fourth cylinder drives the non-powered bag-pressing wheel assembly to move up and down, causing the rollers to press against or move away from the top surface of the powered roller.

[0017] Preferably, the lower side of the bag-sorting board is close to the upper surface of the pallet, and soft bristles that are vertically downward or inclined to both sides are provided on the lower side of the bag-sorting board, so that the soft bristles can abut against the upper surface of the pallet.

[0018] The present invention has at least the following beneficial effects:

[0019] First, this invention achieves synchronous alignment of the bag-sorting plate and the baffle, and synchronously adjusts the distance between the two sliders of the two lead screw modules, making the distance between the two bag-sorting plates equal to the width of the pre-made bag. This allows for easy adaptation to pre-made bags of different specifications, simplifies the operation process, solves the applicability problem of the fixed size of the existing rotating station to pre-made bags of different sizes, ensures the stability and accuracy of the bag-sorting process, and improves the success rate and efficiency of bag sorting.

[0020] Secondly, by combining components such as telescopic baffles, a third cylinder, and vertical baffles, this invention improves the flexibility of positioning, which facilitates the neat alignment of each stack of prefabricated bags during the bag-taking process. This not only achieves flexible positioning and smooth movement of the prefabricated bags, but also improves operational stability and efficiency.

[0021] Third, by combining components such as the powered roller, the first motor, the unpowered bag pressing wheel assembly, and the fourth cylinder, this invention improves the moving efficiency of the pre-made bags, achieves precise positioning of the pre-made bags, enhances the flexibility and applicability of the equipment, reduces damage and deformation of the pre-made bags, and meets the high requirements of modern production lines for efficiency, precision, and flexibility.

[0022] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of a first implementation of the bag preparation and supply device for improving applicability according to the present invention;

[0024] Figure 2 This is a left-side schematic diagram of the bag preparation and supply device for improving applicability according to the present invention;

[0025] Figure 3 This is a front view schematic diagram of the bag preparation and supply device for improving applicability according to the present invention;

[0026] Figure 4 This is a three-dimensional structural diagram of the telescopic baffle of the bag preparation mechanism of the bag preparation and supply device for improving applicability described in this invention when it moves downward.

[0027] Figure 5 This is a three-dimensional structural diagram of the telescopic baffle of the bag preparation mechanism of the bag preparation and supply device for improving applicability described in this invention when it is moved upward;

[0028] Figure 6 This is a bottom-view perspective three-dimensional structural diagram of the bag preparation mechanism of the bag preparation and supply device for improving applicability according to the present invention;

[0029] Figure 7 for Figure 6 A magnified structural diagram of A in the diagram.

[0030] The components include: frame 1; driven shaft 2; support rod 3; roller chain ring 4; bag sorting mechanism 5; second positive and negative threaded screw 6; square rod 7; first support base 8; second motor 9; first motor 10; power roller 11; soft brush bristles 12; bag sorting plate 13; fourth cylinder 14; rubber roller 15; first positive and negative threaded screw 16; slider 17; first cylinder 18; suction cup 19; cylinder fixing plate 20; bag suction mechanism 21; pre-made bag 22; chain ring 23; moving frame 24; bag preparation mechanism 25; vertical baffle 26; telescopic baffle 27; horizontal plate 28; second slider 29; first slider 30; second cylinder 31; second gear 32; first gear 33; linear guide rail 34; first positive and negative threaded screw double slider module 35; second positive and negative threaded screw double slider module 36; guide rail 37; transition plate 38; and third cylinder 39. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to embodiments, so that those skilled in the art can implement it based on the description.

[0032] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the reagents and materials mentioned are commercially available. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0033] Figures 1-7 An implementation of a bag supply device for improving applicability is shown, which includes a bag supply mechanism 25 and a bag sorting mechanism 5, wherein the bag sorting portion of the bag sorting mechanism 5 is located above the bag supply mechanism 25;

[0034] The bag preparation mechanism 25 has a hollow bottom for placing stacks of prefabricated bags 22;

[0035] The hollow bottom of the chamber is provided with a second positive and negative threaded screw double slider module 36, and the double sliders of the second positive and negative threaded screw double slider module 36 are respectively provided with baffles (specifically, a vertical baffle 26 and a telescopic baffle 27).

[0036] The bag sorting mechanism 5 has a first positive and negative threaded screw double slider module 35 that spans the transport channel of the pre-made bag 22. The double slider of the first positive and negative threaded screw double slider module 35 has two bag sorting plates 13.

[0037] A linkage mechanism is provided between the first positive and negative threaded screw double slider module 35 and the second positive and negative threaded screw double slider module 36. When the distance between the two sliders of the first positive and negative threaded screw double slider module 35 is adjusted to adapt to the width of the pre-made bag 22, the distance between the two sliders of the second positive and negative threaded screw double slider module 36 will also be adjusted accordingly to achieve adaptation to pre-made bags 22 of different widths.

[0038] The bag preparation and supply device for improving applicability specifically includes a frame 1 and a bag preparation mechanism 25, a bag suction mechanism 21, and a bag sorting mechanism 5 installed on the frame 1. The bag preparation mechanism 25 is used to place one or more stacks of pre-made bags and move the pre-made bags one stack at a time to the bag suction mechanism 21. The bag suction mechanism 21 is used to absorb the stack of pre-made bags that have moved to the bottom of the bag suction mechanism 21 and suck up the closed end of the topmost single pre-made bag. The bag sorting mechanism 5 is used to lift the single pre-made bag 22 sucked up by the bag suction mechanism 21 and sort it into a horizontal state, completely independent of the stack of pre-made bags below, and supply it to the robot arm of the next process to open the corresponding pre-made bag.

[0039] It also includes a first positive and negative threaded screw double slider module 35 mounted on the bracket and a second positive and negative threaded screw double slider module 36 mounted on the bag preparation mechanism 25. Each of the two sliders 17 of the first positive and negative threaded screw double slider module 35 is provided with a bag-sorting plate 13. The two bag-sorting plates 13 are parallel to each other and are used to sort bags for the bag sorting mechanism 5. That is, the limiting and guiding effect of the two bag-sorting plates 13 is used to guide the single pre-made bag 22 lifted by the bag sorting mechanism 5 to the center position of the tray of the bag sorting mechanism 5. The first and second forward / reverse threaded screw double slider modules 35 and 36 work in sync to align the bag-sorting plate 13 driven by the first forward / reverse threaded screw double slider module 35 with the baffle driven by the second forward / reverse threaded screw double slider module 36. The baffle limits the position of a stack of pre-made bags at the suction mechanism 21, ensuring that the stack of pre-made bags at the suction mechanism 21 corresponds to the position of the two bag-sorting plates 13 on the bag-sorting mechanism 5. This solves the problem of applicability of the fixed-size rotary station to pre-made bags of different sizes in the prior art.

[0040] In use, operators only need to manually, electrically, or automatically adjust the distance between the two sliders of the two lead screw modules according to the size of the pre-made bag, so that the distance between the two bag-sorting plates 13 is equal to the width of the pre-made bag, that is, the distance between the two baffles is also equal to the width of the pre-made bag. This allows for easy adaptation to pre-made bags of different specifications, simplifying the operation process. This invention solves the applicability problem of existing rotary station dimensions being fixed for pre-made bags of different sizes by synchronously aligning the bag-sorting plates 13 and the baffles, ensuring stability and accuracy in the bag-sorting process and improving the success rate and efficiency of bag sorting.

[0041] In the above technical solution, both the suction bag mechanism 21 and the bag sorting mechanism 5 can adopt the structure of existing technology. The suction bag mechanism 21 is used to suction a stack of pre-made bags between the two baffles of the bag preparation mechanism 25 below the suction bag mechanism 21, and suck up the closed end of the topmost single pre-made bag 22. The suction bag mechanism 21 is installed in the frame 1 and located above the two baffles of the bag preparation mechanism 25, with the closed end of the stack of pre-made bags between the two baffles facing the suction bag mechanism 21. The suction bag mechanism 21 includes components such as a cylinder fixing plate 20, a first cylinder 18, and several suction cups 19. The cylinder fixing plate 20 is installed in the frame 1 and suspended above the bag preparation mechanism 25. The cylinder body of the first cylinder 18 is installed on the cylinder fixing plate 20, and the suction cups 19 are fixed on the piston of the first cylinder 18. For the sake of clear illustration of the internal structure, the frame is not fully shown in the accompanying drawings; any support structure that meets the requirements of the art is acceptable.

[0042] The bag-sorting mechanism 5 is used to sort the individual pre-made bags 22 sucked up by the suction bag mechanism 21 into a horizontal state, completely independent of the stack of pre-made bags, and to send the sorted pre-made bags to the position of the next process, so that the robot arm of the next process can open the corresponding pre-made bags. The bag-sorting mechanism 5 includes a second motor 9, a drive shaft, three driven shafts 2, two roller chains 4, several support rods 3, and a transition plate 38; the drive shaft and the three driven shafts 2 are fixed parallel to each other on the frame 1 to form a rectangular frame. The two roller chains 4 are respectively wound around the two ends of the rectangular frame, that is, simultaneously wound around the two ends of the four shafts, and the two roller chains 4 are opened to form a linkage. When the second motor 9 drives the drive shaft to rotate, the drive shaft can drive the driven shafts 2 to rotate by pulling the two roller chains 4, thereby enabling the several support rods 3 fixed on the two roller chains 4 to move along the drive shaft and the driven shafts 2. The transition plate 38 is installed at the end of the two roller chains 4. Several support rods 3 are parallel to each other and also parallel to the drive shaft. The support rods 3 are laid flat and fixed on two roller chain rings 4 to form two trays. The two trays are equally spaced on the roller chain rings 4, that is, there is a gap between the two trays, so that the roller chain rings 4 do not completely surround the support rods 3. When the second motor 9 drives the support rods 3 to move to one side of the bag suction mechanism 21, the suction cups 19 can pass through the gap between the two trays to suck up the closed end of the top single pre-made bag 22. When the closed end of the top single pre-made bag is sucked up by the bag suction mechanism 21, the second motor then drives the tray formed by the support rods to move along the direction from the closed end to the open end of the corresponding pre-made bag, so that one tray flattens the pre-made bag and the open end of the single pre-made bag slides to the transition plate.

[0043] The bag preparation mechanism 25 is located within the roller chain ring 4, which is spread apart by the drive shaft and driven shaft 2, and extends beyond the roller chain ring 4. The bag preparation chamber of the bag preparation mechanism 25, the lead screw of the second positive and negative threaded screw double slider module 36, and the drive shaft are parallel to each other along their length. Specifically, one end of the bag preparation chamber is located inside the frame 1 and fixed to it, while the other end extends outside the frame 1. This results in half of the bag preparation chamber being located below the suction mechanism 21 and surrounded by two roller chain rings 4, while the other half is located outside the support. This allows a stack of pre-made bags to be placed horizontally on the bag preparation chamber outside the support. When placing each stack of pre-made bags, the closed end of each bag is located closer to the suction cup 19, while the open end is located away from the suction cup 19. Furthermore, the length direction of the pre-made bags is perpendicular to the length direction of the lead screw. The moving frame 24 of the bag preparation mechanism 25 moves the stack of pre-made bags... After the bags are pushed into the lower part of the suction bag mechanism 21 (under the action of the baffle driven by the second positive and negative screw double slider module 36, the pushed stack of pre-made bags can be aligned with the position between the two bag sorting plates 13 on the bag sorting mechanism 5, improving applicability and bag sorting effect), then the moving frame 24 is controlled to reset to the end of the spare bag compartment located outside the support, which is conducive to placing a spare stack of pre-made bags in the spare bag compartment in advance. When it is detected that the previous stack of pre-made bags is used up, the spare stack of pre-made bags can be automatically pushed into the lower part of the suction bag mechanism 21 according to the specified stroke, and then reset, so that the next spare stack of pre-made bags can be placed in the spare bag compartment, and so on.

[0044] Based on the above implementation, the first positive and negative threaded screw double slider module 35 includes a first positive and negative threaded screw 16, two sliders, a linear guide rail, and two first support seats 8. The two first support seats 8 are fixed on both sides of the bracket. The two ends of the first positive and negative threaded screw 16 are rotatably mounted on the two first support seats 8 through bearings. The first positive and negative threaded screw 16 is parallel to the support rod 3 of the bag sorting mechanism 5 and perpendicular to the bag sorting plate 13. The two sliders are respectively threaded onto the positive and negative threaded sections of the first positive and negative threaded screw 16 and can slide along the linear guide rail, thereby driving the two bag sorting plates 13 on the two sliders to move closer or further apart.

[0045] Based on the above implementation, the bag preparation mechanism 25 includes a square bag preparation compartment and a moving mechanism. The bottom of the bag preparation compartment is formed by multiple square rods 7 laid horizontally at intervals to form a hollow bottom. The length direction of the multiple square rods 7 is parallel to the length direction of the first positive and negative threaded screws 16. The moving mechanism includes a moving frame 24 and a second cylinder 31. The moving frame 24 is slidably disposed on the bottom of the compartment. The second cylinder 31 drives the moving frame 24 to slide along the length direction of the square rods 7 to push a stack of pre-made bags on the bottom of the compartment into the lower part of the bag suction mechanism 21.

[0046] Based on the above implementation, two guide rails 37 are also included. The two guide rails 37 are located below the hollowed-out multiple square rods 7 and are parallel to the multiple square rods 7. The lower end of the movable frame 24 is provided with wheels that match the two guide rails 37. The two guide rails 37 are used to support and guide the movable frame 24, which facilitates the movement of the movable frame 24 along the length direction of the two guide rails 37, thereby smoothly pushing a stack of pre-made bags on the bottom of the silo into the lower part of the suction bag mechanism 21.

[0047] Based on the above implementation, the second positive and negative threaded screw double slider module 36 includes a second positive and negative threaded screw 6, a first slider 30, a second slider 29, a vertical baffle 26, a telescopic baffle 27, a third cylinder 39, a linear guide rail 34, and two second support seats. The two baffles, based on the above implementation, include a vertical baffle 26 and a telescopic baffle 27. The two second support seats are fixed below the plurality of square rods 7. The two ends of the second positive and negative threaded screw 6 are rotatably mounted on the two second support seats via bearings. The second positive and negative threaded screw 6 is parallel to the first positive and negative threaded screw 16. The first slider 30 is near one end of the bag storage compartment, one end of which is located inside the frame 1, and the other end is located outside the frame 1. The second slider 29 is located in the middle of the bag storage compartment. The vertical baffle 26 is mounted on the first slider 30, and the telescopic baffle 27 slides through the second slider 29 and... The third cylinder drives the telescopic baffle 27 to move up and down. When the upper end of the telescopic baffle 27 moves upward above the bottom of the bin, it can limit a stack of pre-made bags on the bottom of the bin between the telescopic baffle 27 and the vertical baffle 26. When the upper end of the telescopic baffle 27 moves downward below the bottom of the bin, the telescopic baffle 27 does not form a limit or obstruction on the bottom of the bin, which facilitates the smooth movement of the moving frame 24 along the length direction of the two guide rails 37, pushing the stack of pre-made bags on the bottom of the bin into the lower part of the suction bag mechanism 21. The first slider 30 and the second slider 29 are respectively threaded onto the positive and negative thread sections of the second positive and negative thread screw 6, and can slide along the linear guide rail, thereby driving the vertical baffle 26 and the telescopic baffle 27 to move closer or further away, so that the stack of pre-made bags located between the telescopic baffle 27 and the vertical baffle 26 corresponds to the position between the two bag sorting plates 13 on the bag sorting mechanism 5.

[0048] The movable frame can be inserted at the intervals of the plurality of square rods to move along a direction parallel to the plurality of square rods; a second cylinder is connected to the movable frame to drive the movable frame to move a predetermined distance along the plurality of square rods, pushing the pre-made bag to the vertical baffle. The telescopic baffle can also be inserted at the intervals of the plurality of square rods, offset from the movement path of the movable frame; after the movable frame pushes the pre-made bag to the vertical baffle, the movable frame retracts, and the third cylinder drives the telescopic baffle to move upwards to a predetermined height exposing the upper surface of the plurality of square rods.

[0049] Based on the above implementation, the vertical baffle 26 comprises two or more plate bodies, and the telescopic baffle 27 comprises two or more plate bodies. Multiple plate bodies are beneficial to improving the limiting effect on the pre-made bags. The vertical baffle 26, the telescopic baffle 27, the bag sorting plate 13, and the moving frame 24 are parallel to each other. The lower ends of the two or more plate bodies of the telescopic baffle 27 are all fixed to the same horizontal plate 28. The third cylinder is disposed between the horizontal plate 28 and the second slider 29. The piston end of the third cylinder is connected to the horizontal plate 28 to drive the two or more plate bodies of the telescopic baffle 27 to move up and down. In use, when the movable frame 24 needs to push a stack of pre-made bags on the bottom of the bin into the area below the suction bag mechanism 21, the telescopic baffle 27 is controlled to move down below the bottom surface of the bin; when the movable frame 24 is reset, the telescopic baffle 27 is controlled to move up above the bottom surface of the bin, limiting the stack of pre-made bags below the suction bag mechanism 21 between the telescopic baffle 27 and the vertical baffle 26, and corresponding to the position between the two bag sorting plates 13 of the bag sorting mechanism 5.

[0050] That is, when the pre-made bag has not reached the predetermined position of the bottom of the hollow chamber, the third cylinder drives the telescopic baffle to move downward, so that the telescopic baffle moves to a position where the upper surface of the multiple square rods inside the bottom of the hollow chamber is not exposed.

[0051] Based on the above implementation, a linkage mechanism is provided between the first positive and negative threaded screw double slider module 35 and the second positive and negative threaded screw double slider module 36. When the distance between the two sliders of the first positive and negative threaded screw double slider module is adjusted to adapt to the width of the pre-made bag, the distance between the two sliders of the second positive and negative threaded screw double slider module will also be adjusted accordingly to achieve adaptation to pre-made bags of different widths.

[0052] The linkage mechanism also includes a first gear 33, a second gear 32, and a chain ring 23. The first gear 33 is located at one end of the first positive and negative toothed screw 16, and the second gear 32 is located at one end of the second positive and negative toothed screw 6. The first gear 33 and the second gear 32 have the same specifications. The chain ring 23 is wound between the first gear 33 and the second gear 32 for synchronous rotation.

[0053] In practical use, the first gear 33 and the second gear 32 are located on the same side. They can be rotated manually or electrically. Alternatively, by setting a gear of the same specification between the first gear 33 and the second gear 32 to replace the chain ring 23, synchronous rotation of the first gear 33 and the second gear 32 can also be achieved. In actual use, the distance between the two bag-sorting plates 13 and the distance between the vertical baffle 26 and the telescopic baffle 27 only need to be adjusted synchronously when changing the bag size. The adjustment frequency is not high, and manual rotation can meet the requirements. In order to facilitate adjusting the distance between the two bag-sorting plates 13 and the distance between the vertical baffle 26 and the telescopic baffle 27 to be equal to the width of the pre-made bag, a scale can be marked on the linear guide rail of the first positive and negative threaded screw double slider module 35 for easy reference during adjustment.

[0054] Based on the above implementation, it also includes a powered roller 11, a first motor 10, a non-powered bag-pressing wheel assembly, and a fourth cylinder 14. The powered roller 11 is located between the ends of the two roller chain rings 4 of the bag-sorting mechanism 5 and the transition plate 38. The top surface of the powered roller 11 is parallel to and on the same plane as the two roller chain rings 4. The transition plate 38 is close to and parallel to the top surface of the powered roller 11. The transition plate 38 may be parallel to the top surface of the powered roller 11 or slightly lower than the top surface of the powered roller 11. For example, if the thickness is less than 1-10mm, the axial direction of the powered roller 11 is parallel to the support rod 3 of the bag-sorting mechanism 5. The powered roller 11 is driven to rotate by the first motor 10 to move the pre-made bag to the rear transition plate. The non-powered bag-pressing wheel assembly consists of two coaxially arranged rubber rollers 15, and the axial direction of the rollers is parallel to the axial direction of the powered roller 11. The non-powered bag-pressing wheel assembly is located directly above the top surface of the powered roller. The fourth cylinder 14 drives the non-powered bag-pressing wheel assembly to move up and down so that the rollers press against or move away from the top surface 38 of the powered roller. By controlling the rotation direction and start / stop time of the first motor 10, and controlling the extension and retraction of the fourth cylinder, the distance that the powered roller 11 rolls and conveys the pre-made bag is controlled. The rollers press down to position, thereby controlling the pre-made bag to reach the position on the transition plate 38. Then, the non-powered bag-pressing wheel assembly is controlled to move up to release the pre-made bag, which is then supplied to the robot arm in the next process to open and remove the corresponding pre-made bag at the specified position, effectively improving efficiency. This device also includes a control unit, which controls each cylinder, motor and other actuators according to a program, facilitating automated control.

[0055] The existing technology does not include the power roller 11, the first motor 10, the unpowered bag pressing wheel and the fourth cylinder 14. The specific process is as follows: the bag sorting mechanism 5 lifts the single pre-made bag 22 sucked up by the bag suction mechanism 21 and sorts it into a horizontal state, completely independent of the stack of pre-made bags below. The single pre-made bag 22 is on the tray with several support rods 3 laid flat on the bag sorting mechanism 5. As the tray moves backward and the inertia causes the pre-made bag to move to the transition plate 38, the bag sorting mechanism 5 pauses for a specified time after lifting each pre-made bag, allowing the next process to open and remove the pre-made bag, and then repeats the above action to lift the next pre-made bag.

[0056] The present invention includes a powered roller 11, a first motor 10, a non-powered bag-pressing wheel assembly, and a fourth cylinder 14. The specific implementation process is as follows: The bag-sorting mechanism 5 lifts the individual pre-made bags 22 sucked up by the suction mechanism 21, arranging them horizontally and completely independently of the stack of pre-made bags below. Under the guidance of the bag-sorting plate 13, the individual pre-made bags 22 are positioned flat in the middle of the tray with several support rods 3 laid flat on it. As the tray moves backward, they reach the powered roller 11. Under the rolling action of the powered roller 11, the pre-made bags can... The pre-made bag can quickly move to the transition plate 38. When the pre-made bag is detected to have reached the set position on the transition plate 38, the power roller 11 is paused, and the fourth cylinder 14 is controlled to drive the non-powered bag pressing wheel assembly downwards, so that the pre-made bag stops moving at the set position on the transition plate 38. This facilitates the operation of the robot arm in the next process at the specified position, and more accurately and effectively opens the corresponding pre-made bag. This allows the next process to open and remove the pre-made bag faster and more smoothly. The bag sorting mechanism 5 can perform the above actions more quickly to lift the next pre-made bag, improving efficiency. This solves the problem that the pre-made bag moves to the transition plate 38 by inertia, which is slow and the position is uncontrollable, affecting the packaging speed and operating efficiency. This invention improves the movement efficiency and control effect of the pre-made bag by combining the rolling contact method of the power roller 11 and the rubber roller 15 of the non-powered bag pressing wheel assembly. The rubber roller 15 has good elasticity and wear resistance, and can also reduce the damage and deformation of the pre-made bag when pressing and positioning it, meeting the high requirements of modern production lines for efficiency, precision and flexibility.

[0057] Based on the above implementation, the lower side of the bag sorting plate 13 is close to the upper surface of the pallet, and soft bristles 12 that are vertically downward or inclined to both sides are provided on the lower side of the bag sorting plate 13, and the soft bristles 12 can abut against the upper surface of the pallet.

[0058] This invention provides a stable support surface for pre-made bags by having soft bristles 12 contact the upper surface of the tray. The elasticity of the bristles helps to adjust the bags to the center position on the tray. The soft bristles 12 are made of soft material, which can reduce friction and wear on the tray when in contact with the upper surface of the tray. This achieves the goal of both keeping the bags in the center position on the tray and reducing damage to the tray.

[0059] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. It can be applied to various fields suitable for the present invention. Further modifications can be readily implemented by those skilled in the art.

Claims

1. A bag preparation and supply device with improved applicability, comprising a frame, characterized in that: It also includes a bag preparation mechanism and a bag sorting mechanism, wherein the bag sorting part of the bag sorting mechanism is located above the bag preparation mechanism; The bag preparation mechanism includes a square bag preparation compartment for placing stacks of prefabricated bags; the bottom of the bag preparation compartment is formed by multiple square rods laid horizontally at intervals to create a perforated bottom. The hollowed-out chamber bottom is provided with a second positive and negative threaded screw double slider module, and baffles are respectively provided on the two sliders of the second positive and negative threaded screw double slider module. The bag sorting mechanism is provided with a first positive and negative threaded screw double slider module that spans the transport channel of the pre-made bags. The first positive and negative threaded screw double slider module is provided with two bag sorting plates on its double sliders. A linkage mechanism is provided between the first positive and negative threaded screw double slider module and the second positive and negative threaded screw double slider module. When the distance between the two sliders of the first positive and negative threaded screw double slider module is adjusted to adapt to the width of the pre-made bag, the distance between the two sliders of the second positive and negative threaded screw double slider module will also be adjusted accordingly to achieve adaptation to pre-made bags of different widths. The second positive and negative threaded screw dual-slider module includes a second positive and negative threaded screw, a first slider, a second slider, a vertical baffle, a telescopic baffle, a third cylinder, a linear guide rail, and two second support seats. The two second support seats are fixed below the plurality of square rods. The two ends of the second positive and negative threaded screw are rotatably mounted on the two second support seats via bearings. The second positive and negative threaded screw is parallel to the first positive and negative threaded screw. The first slider is located near one end of the bag compartment, and the second slider is located in the middle of the bag compartment. The vertical baffle is mounted on the first slider, and the telescopic baffle slides through the... The second slider is driven by the third cylinder to move the telescopic baffle up and down. When the upper end of the telescopic baffle moves upward above the bottom of the bin, it can limit a stack of pre-made bags on the bottom of the bin between the telescopic baffle and the vertical baffle. The first slider and the second slider are respectively threaded onto the positive and negative thread sections of the second positive and negative thread screw, and can slide along the linear guide rail, thereby causing the vertical baffle and the telescopic baffle to move closer or further away from each other, so that the stack of pre-made bags located between the telescopic baffle and the vertical baffle corresponds to the position between the two bag sorting plates on the bag sorting mechanism.

2. The bag preparation and supply device for improving applicability as described in claim 1, characterized in that, The first positive and negative threaded screw dual slider module includes a first positive and negative threaded screw, two sliders, a linear guide rail, and two first support seats. The two first support seats are fixed on both sides of the frame. The two ends of the first positive and negative threaded screw are rotatably mounted on the two first support seats through bearings. The first positive and negative threaded screw is parallel to the support rod of the bag sorting mechanism and perpendicular to the bag sorting plate. The two sliders are respectively threaded onto the positive and negative threaded sections of the first positive and negative threaded screw and can slide along the linear guide rail, thereby driving the two bag sorting plates on the two sliders to move closer or further apart.

3. The bag preparation and supply device for improving applicability as described in claim 2, characterized in that, The bag preparation mechanism includes a moving mechanism, wherein the length direction of the plurality of square rods is parallel to the length direction of the first positive and negative threaded screws; the moving mechanism includes a moving frame and a second cylinder, wherein the moving frame is slidably disposed on the bottom of the bin, and the second cylinder drives the moving frame to slide along the length direction of the plurality of square rods to push a stack of pre-made bags on the bottom of the bin under the bag suction mechanism.

4. The bag preparation and supply device for improving applicability as described in claim 3, characterized in that, It also includes two guide rails, which are located below the multiple square rods and parallel to the multiple square rods. The lower end of the movable frame is provided with wheels that match the two guide rails.

5. The bag preparation and supply device for improving applicability as described in claim 4, characterized in that, The vertical baffle comprises two or more plate bodies, and the telescopic baffle comprises two or more plate bodies. The vertical baffle, the telescopic baffle, the bag sorting plate, and the movable frame are parallel to each other. The lower ends of the two or more plate bodies of the telescopic baffle are all fixed to the same horizontal plate. The third cylinder is disposed between the horizontal plate and the second slider. The piston end of the third cylinder is connected to the horizontal plate to drive the two or more plate bodies of the telescopic baffle to move up and down.

6. The bag preparation and supply device for improving applicability as described in any one of claims 1-5, characterized in that, The linkage mechanism includes a first gear, a second gear, and a chain ring. The first gear is coaxially disposed at one end of a first positive and negative toothed screw, and the second gear is coaxially disposed at one end of a second positive and negative toothed screw. The first gear and the second gear have the same specifications. The chain ring is wound between the first gear and the second gear for synchronous rotation.

7. The bag preparation and supply device for improving applicability as described in claim 6, characterized in that, It also includes a powered roller, a first motor, a non-powered bag-pressing wheel assembly, and a fourth cylinder. The powered roller is positioned between the ends of the two roller chains of the bag-sorting mechanism and the transition plate. The top surface of the powered roller is parallel to and on the same plane as the two roller chains. The transition plate is close to and parallel to the top surface of the powered roller. The axial direction of the powered roller is parallel to the support rod of the bag-sorting mechanism. The first motor drives the powered roller to rotate, thereby moving the pre-made bags toward the rearward transition plate. The non-powered bag-pressing wheel assembly consists of two coaxially arranged rubber rollers, and the axial direction of the rollers is parallel to the axial direction of the powered roller. The non-powered bag-pressing wheel assembly is located directly above the top surface of the powered roller. The fourth cylinder drives the non-powered bag-pressing wheel assembly to move up and down so that the rollers press against or move away from the top surface of the powered roller.

8. The bag preparation and supply device for improving applicability as described in claim 7, characterized in that, The lower side of the bag sorting plate is close to the upper surface of the pallet, and soft bristles that are vertically downward or inclined to both sides are provided on the lower side of the bag sorting plate, so that the soft bristles can abut against the upper surface of the pallet.

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