A bag feeding and taking bag mechanism and its working method

Abstract

The present invention provides a bag feeding and bag taking mechanism and a working method thereof, comprising a frame, a pair of bag feeding mechanisms are symmetrically arranged on the left side of the frame, and a bag taking mechanism is arranged on the right side of the frame; each bag feeding mechanism comprises a bag preparation plate for stacking packaging bags, and a suction cup flipping mechanism is arranged above the bag preparation plate to suck the packaging bags and flip them from horizontal to vertical; the bag taking mechanism comprises a guide rail arranged horizontally on the frame from front to back, a slider sliding along the guide rail is arranged on the guide rail, a bag taking cylinder is fixed above the slider, the output shaft of the bag taking cylinder extends horizontally to the left, and a suction cup telescopic mechanism is coaxially fixed on the output shaft of the bag taking cylinder. The present invention has a reasonable design and a simple structure, and can be applied to packaging bags with hand buckles and packaging belts without hand buckles, and is compatible with packaging bags of different sizes and can be flexibly applied.

Description

Technical Field

[0001] The invention relates to a bag feeding and taking mechanism and a working method thereof. Background Art

[0002] The bag feeding and bag taking mechanisms can convey packaging bags. Most of the existing bag feeding and bag taking mechanisms are only suitable for packaging bags with handles, which have high requirements for packaging bags and are not conducive to use. Some bag feeding and bag taking mechanisms are inconvenient to use and have poor flexibility. They cannot be used for conveying packaging bags of different sizes and have a small scope of application. Summary of the invention

[0003] The present invention improves the above-mentioned problem, that is, the technical problem to be solved by the present invention is to provide a bag feeding and taking bag mechanism and a working method thereof, which has a simple structure, is easy to use and has a wide range of applications.

[0004] The specific implementation scheme of the present invention is: to provide a bag feeding and bag taking mechanism, including a frame, a pair of bag feeding mechanisms are symmetrically arranged on the left side of the frame, and a bag taking mechanism is arranged on the right side of the frame; each bag feeding mechanism includes a bag preparation plate for stacking packaging bags, and a suction cup flipping mechanism is arranged above the bag preparation plate to suck the packaging bags and flip them from horizontal to vertical; the bag taking mechanism includes a guide rail horizontally arranged on the frame from front to back, a slider sliding along the guide rail is provided on the guide rail, a bag taking cylinder is fixed above the slider, the output shaft of the bag taking cylinder extends horizontally to the left and a suction cup telescopic mechanism is coaxially fixed on the output shaft of the bag taking cylinder.

[0005] Furthermore, the suction cup flipping mechanism includes a laterally arranged swing arm frame, a bag feeding shaft is arranged on the right side of the swing arm frame, both ends of the bag feeding shaft are connected to the swing arm frame via right seat bearings respectively, a shaft crank is arranged in the middle of the bag feeding shaft, a lifting cylinder is fixed below the shaft crank, a lifting mounting plate is coaxially fixedly connected to the output shaft of the lifting cylinder, a flipping suction cup with the adsorption surface facing downward is arranged below the lifting mounting plate, a flipping cylinder for pulling the bag feeding shaft to rotate is arranged on the left side of the shaft crank, and the output shaft of the flipping cylinder is hinged to the top of the shaft crank.

[0006] Furthermore, a swing arm shaft is passed through the left side of the swing arm frame from front to back, and left seat bearings are respectively sleeved on both ends of the swing arm shaft, and the left seat bearing is installed on the frame. A connecting rod is fixed to the end of the swing arm shaft, and a straightening cylinder is fixed to the lower part of the frame, and the output shaft of the straightening cylinder is hinged to the lower end of the connecting rod.

[0007] Furthermore, the suction cup retractable mechanism includes a bag taking mounting plate fixed to the output shaft of the bag taking cylinder, a bag lifting cylinder is fixed to the side of the bag taking mounting plate, the output shaft of the bag lifting cylinder extends downward and an "L"-shaped bag lifting mounting plate is fixed on the output shaft of the bag lifting cylinder, and a bag taking suction cup with the adsorption surface facing the left side is fixed to the left side of the bag lifting mounting plate.

[0008] Furthermore, two centering plates are symmetrically arranged on the front and rear sides of the bag preparation plate, and a limiting plate is arranged on the right side of the bag preparation plate.

[0009] Furthermore, a pair of guide grooves corresponding to the centering plates and extending along the width direction of the bag preparation plate are arranged in the front and rear of the bag preparation plate. Each centering plate is L-shaped, and a guide block matching the guide groove is fixed under each centering plate. A gear is arranged at the bottom of the bag preparation plate, and racks meshing with the gear are arranged on both sides of the gear. The rack is fixedly connected to the guide block, and a rack limiting plate is sleeved on the outside of each rack, and the rack limiting plate is fixed on the bag preparation plate.

[0010] Furthermore, a partition plate and a partition plate cylinder are sequentially arranged from top to bottom below the bag preparation plate, and the output shaft of the partition plate cylinder passes through the partition plate upward and is fixedly connected to the bottom of the bag preparation plate. A plurality of guide rods penetrating the partition plate are arranged below the bag preparation plate.

[0011] Furthermore, a screw slider device is provided on the side of the guide rail, and the screw slider device includes a screw motor installed on the frame. The output shaft of the screw motor is provided with a screw horizontally arranged from front to rear through a coupling. A movable platform is sleeved on the screw, and the movable platform is fixedly connected to the slider.

[0012] Furthermore, a swing arm crank is arranged on the upper middle part of the left side of the swing arm frame, and a fixing plate hinged to the swing arm crank is fixed on the left side of the flip cylinder.

[0013] Furthermore, a working method of a bag feeding and taking bag mechanism comprises the following steps: (1) the straightening cylinder is extended to drive the connecting rod to swing, the swing arm shaft rotates counterclockwise, and the swing arm frame rotates to a horizontal state; (2) the partition cylinder is driven to lift the bag preparation plate and raise it to a suitable position; (3) a pile of packaging bags of required specifications are placed on the bag preparation plate, and two centering plates are adjusted. The centering plates slide along the guide grooves, driving the rack to move along the rack limit plate, and the packaging bags are corrected for centering; (4) after the packaging bag placement adjustment is completed, the lifting cylinder drives the flipping suction cup to move downward and adsorb a packaging bag on the bag preparation plate; (5) the lifting cylinder is reset, the flipping cylinder is retracted, the shaft crank is pulled to swing, and the bag feeding shaft rotates counterclockwise, so that the lifting cylinder and the flipping suction cup are pressed downward. The rotating suction cup and the packaging bag rotate 90 degrees counterclockwise, and the packaging bag changes from a horizontal state to a vertical state; (6) The lifting cylinder extends horizontally to send the packaging bag to the right to facilitate the bag-taking mechanism to take the bag; (7) The screw slider device drives the suction cup telescopic mechanism and the bag-taking cylinder to move from the middle station to the left station or the right station, and the bag-lifting cylinder is in the extended state. The bag-taking cylinder extends and pushes the bag-taking suction cup to move to the right, sucking the packaging bag on the bag-feeding mechanism, and resetting the bag-feeding mechanism; (8) The bag-lifting cylinder contracts to make the packaging bag leave the original bag storage position, and the screw motor rotates to drive the screw to rotate, and the moving platform drives the bag-taking cylinder, the bag-lifting cylinder, the bag-taking suction cup and the adsorbed packaging bag to move back to the middle station, and then the packaging bag is handed over to the next process, completing the bag-feeding and bag-taking processes.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the device has a simple structure and a reasonable design. It can be used for both packaging bags with hand buckles and packaging straps without hand buckles. It is compatible with packaging bags of different sizes, has flexible application, a wide range of applicability, and is innovative. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a stereogram of an embodiment of the present invention;

[0016] Figure 2 A top view of an embodiment of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the bag feeding mechanism and the bag taking mechanism according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the bag feeding mechanism structure according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the deviation correction and centering device according to an embodiment of the present invention;

[0020] Figure 6 This is a schematic diagram of the bottom structure of the bag plate according to an embodiment of the present invention;

[0021] Figure 7It is a partial schematic diagram of the bag taking mechanism according to an embodiment of the present invention;

[0022] Figure 8 The working example of the present invention is shown in FIG. Figure 1 ;

[0023] Fig. 9 The working example of the present invention is shown in FIG. Figure 2 ;

[0024] Fig.10 The working example of the present invention is shown in FIG. Figure 3 ;

[0025] Fig.11 The working example of the present invention is shown in FIG. Figure 4 ;

[0026] Fig.12 It is a top view of the bag feeding mechanism according to an embodiment of the present invention;

[0027] In the figure: 1-frame, 2-bag feeding mechanism, 21-bag preparation plate, 22-suction cup flipping mechanism, 221-swing arm frame, 222-bag feeding shaft, 223-right belt seat bearing, 224-shaft crank, 225-lifting cylinder, 226-lifting mounting plate, 227-flipping suction cup, 228-flipping cylinder, 229-fixing plate, 3-bag taking mechanism, 31-guide rail, 32-slider, 33-bag taking cylinder, 34-suction cup telescopic mechanism, 341-bag taking mounting plate, 342-bag lifting cylinder, 343-bag lifting mounting plate, 344-bag taking suction cup, 4-swing Boom horizontal adjustment mechanism, 41-swing arm shaft, 42-left seat bearing, 43-connecting rod, 44-straightening cylinder, 45-swing arm crank, 5-correction and centering device, 51-centering plate, 52-limiting plate, 53-guide groove, 54-guide block, 55-gear, 56-rack, 57-rack limiting plate, 6-screw slider device, 61-screw motor, 62-screw, 621-left station, 622-middle station, 623-right station, 63-moving platform, 64-coupling, 7-partition, 8-partition cylinder, 9-guide rod, 10-packaging bag. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Example: Figures 1 to 12As shown in the figure, in this embodiment, a bag feeding and bag taking mechanism is provided, including a frame 1. A pair of bag feeding mechanisms 2 are symmetrically arranged before and after on the left side of the frame, and a bag taking mechanism 3 is arranged on the right side of the frame; each bag feeding mechanism 2 includes a bag preparation plate 21 for stacking packaging bags, and a suction cup flipping mechanism 22 is arranged above the bag preparation plate, which is used to suck the packaging bag and flip it from horizontal to vertical; the bag taking mechanism 3 includes a guide rail 31 horizontally arranged on the frame from front to back, a slider 32 slidably matched with the guide rail is arranged on the guide rail, a bag taking cylinder 33 is fixed above the slider, the output shaft of the bag taking cylinder extends horizontally to the left, and a suction cup telescopic mechanism 34 is coaxially fixed on the output shaft of the bag taking cylinder. The suction cup telescopic mechanism is used to adsorb the packaging bag conveyed by the bag feeding mechanism.

[0030] In this embodiment, the suction cup flipping mechanism 22 includes a horizontally arranged swing arm frame 221. A bag feeding rotating shaft 222 is arranged on the right side of the swing arm frame. Both ends of the bag feeding rotating shaft are respectively connected with the swing arm frame through right pedestal bearings 223. A rotating shaft crank 224 is arranged in the middle of the bag feeding rotating shaft 222. A lifting cylinder 225 is fixed below the rotating shaft crank. A lifting mounting plate 226 is coaxially fixed on the output shaft of the lifting cylinder. A flipping suction cup 227 with the adsorption surface facing down is arranged below the lifting mounting plate. A flipping cylinder 228 for pulling the bag feeding rotating shaft to rotate is arranged on the left side of the rotating shaft crank. The output shaft of the flipping cylinder is hinged to the upper part of the rotating shaft crank;

[0031] The lifting cylinder drives the flipping suction cup to move downward to adsorb the packaging bag placed on the bag preparation plate, and then the lifting cylinder contracts and resets; the flipping cylinder contracts to pull the bag feeding rotating shaft to rotate, driving the rotating shaft crank, the lifting cylinder, and the flipping suction cup to flip from vertical to horizontal. Then the lifting cylinder extends to send the flipping suction cup and the packaging bag to the right for the subsequent bag taking mechanism to perform the bag taking process.

[0032] In this embodiment, the swing arm frame can be formed by connecting four swing arms in a "square" shape.

[0033] In this embodiment, a swing arm rotating shaft 41 is penetrated through the left side of the swing arm frame 221 from front to back. The swing arm rotating shaft penetrates through the swing arm frame and is fixedly connected with the swing arm frame. Left pedestal bearings 42 are respectively sleeved at both ends of the swing arm rotating shaft. The left pedestal bearings are installed on the frame. A connecting rod 43 is arranged at the end of the swing arm rotating shaft. The upper end of the connecting rod is fixedly connected with the swing arm rotating shaft. A摆正 cylinder 44 is fixed at the lower part of the frame. The output shaft of the摆正 cylinder is hinged to the lower end of the connecting rod;

[0034] The above swing arm frame, swing arm rotating shaft, left pedestal bearing, connecting rod, and摆正 cylinder constitute a swing arm frame horizontal adjustment mechanism 4, which is used to first adjust the swing arm frame to a horizontal state for subsequent work; in the initial state, the swing arm frame is in a vertical state. The摆正 cylinder extends to drive the connecting rod to swing, and the rotating shaft rotates counterclockwise, thereby driving the swing arm frame to be in a horizontal state.

[0035] In this embodiment, the suction cup retractable mechanism 34 includes a bag taking mounting plate 341 fixed on the output shaft of the bag taking cylinder, a bag lifting cylinder 342 is fixed to the side of the bag taking mounting plate, the output shaft of the bag lifting cylinder extends downward and an "L"-shaped bag lifting mounting plate 343 is fixed on the output shaft of the bag lifting cylinder, and a bag taking suction cup 344 with the adsorption surface facing the left side is fixed to the left side of the bag lifting mounting plate.

[0036] In this embodiment, in order to ensure that the packaging bag is placed in the middle to facilitate the adsorption and transmission of the bag feeding mechanism, two centering plates 51 are symmetrically arranged on the front and rear sides of the bag preparation plate; in order to prevent the packaging bag from falling, a limiting plate 52 is arranged on the right side of the bag preparation plate.

[0037] In order to deal with different specifications of packaging bags, a deviation correction and centering device 5 is provided. The bag can be corrected and centered by manually pushing the two front and rear centering plates. A pair of guide grooves 53 corresponding to the centering plates and extending along the width direction of the bag preparation plate are provided at the front and rear of the bag preparation plate. Each centering plate is L-shaped, and a guide block 54 matching the guide groove is fixed under each centering plate. A gear 55 is provided at the bottom of the bag preparation plate, and racks 56 meshing with the gear are provided on both sides of the gear. The rack is fixedly connected to the guide block, and a rack limiting plate 57 is provided on the outside of each rack, and the rack limiting plate is fixed on the bag preparation plate; the centering plate is pushed to move along the guide groove, and the guide block drives the rack to move along the rack limiting plate, so as to facilitate the adjustment of the distance between the two centering plates, and then adjust according to packaging bags of different sizes.

[0038] In this embodiment, a partition 7 and a partition cylinder 8 are arranged in sequence from top to bottom below the bag preparation plate. The output shaft of the partition cylinder passes through the partition upward and is fixedly connected to the bottom of the bag preparation plate. A plurality of guide rods 9 passing through the partition are arranged below the bag preparation plate. The guide rods can play a guiding and positioning role in the process of lifting and lowering the bag preparation plate to enhance stability.

[0039] In this embodiment, a screw slider device 6 is provided on the side of the guide rail, and the screw slider device includes a screw motor 61 installed on the frame. The output shaft of the screw motor is provided with a screw 62 horizontally arranged from front to back through a coupling 64, and a movable platform 63 is sleeved on the screw, and the movable platform is fixedly connected to the slider; three workstations can be provided on the screw of the screw slider device, namely a left workstation 621, a middle workstation 622, and a right workstation 623. The left workstation and the right workstation correspond to two bag feeding mechanisms respectively. The suction cup retractable mechanism and the bag taking cylinder are in the middle workstation by default in the initial state. When it is necessary to take the bag, the screw slider device drives the suction cup retractable mechanism and the bag taking cylinder to move to the left workstation or the right workstation to take the bag. After the bag is taken, it returns to the middle workstation, and the packaging bag is handed over to the next process to complete the bag taking.

[0040] In this embodiment, a swing arm crank 45 is provided on the upper middle portion of the left side of the swing arm frame, and a fixing plate 229 hinged to the swing arm crank is fixed on the left side of the flip cylinder.

[0041] In this embodiment, during operation, the horizontal adjustment mechanism of the swing arm frame adjusts the swing arm frame to a horizontal state, the partition cylinder extends upward, driving the bag preparation plate to rise to a suitable position, and placing a plurality of neatly arranged packaging bags on the bag preparation plate. Then the suction cup flipping mechanism sucks the packaging bag and flips the packaging bag from a "horizontal" state to a "vertical" state, and the screw slider device drives the suction cup telescopic mechanism and the bag taking cylinder to move to the left station or the right station, the bag lifting cylinder is in an extended state, the bag taking cylinder extends, and sucks the packaging bag on the suction cup flipping mechanism, the suction cup flipping mechanism shrinks and resets, the bag lifting cylinder retracts, and drives the packaging bag to rise so that the packaging bag is separated from the original storage bag (hanging bag) position, and the screw slider device drives the suction cup telescopic mechanism and the bag taking cylinder to reset to the middle station, and the packaging bag is handed over to the next process, completing the bag feeding and bag taking conveying process.

[0042] Unless otherwise stated, any technical solution disclosed in the present invention disclosed above, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range, and any technician in the field should understand that the preferred numerical range is only a numerical value with a more obvious technical effect or representative value among many implementable numerical values. Since there are too many numerical values ​​to be exhaustive, the present invention discloses some numerical values ​​to illustrate the technical solution of the present invention, and the numerical values ​​listed above should not constitute a limitation on the scope of protection of the present invention.

[0043] At the same time, if the above-mentioned invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connected by bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).

[0044] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the present invention include states or shapes that are approximate, similar, or close to them.

[0045] Any component provided by the present invention may be assembled from a plurality of separate components, or may be a separate component manufactured by an integral forming process.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A working method of a bag feeding and bag taking mechanism, characterized in that: It comprises a frame, a pair of bag feeding mechanisms are symmetrically arranged on the left side of the frame, and a bag taking mechanism is arranged on the right side of the frame; each bag feeding mechanism comprises a bag preparation plate for stacking packaging bags, a suction cup flipping mechanism is arranged above the bag preparation plate, and is used to suck the packaging bags and flip them from horizontal to vertical; the bag taking mechanism comprises a guide rail arranged horizontally on the frame from front to back, a slider sliding along the guide rail is arranged on the guide rail, a bag taking cylinder is fixed above the slider, the output shaft of the bag taking cylinder extends horizontally to the left, and a suction cup telescopic mechanism is coaxially fixed on the output shaft of the bag taking cylinder; The suction cup flipping mechanism includes a laterally arranged swing arm frame, a bag feeding shaft is arranged on the right side of the swing arm frame, two ends of the bag feeding shaft are respectively connected to the swing arm frame via right seat bearings, a shaft crank is arranged in the middle of the bag feeding shaft, a lifting cylinder is fixed below the shaft crank, a lifting mounting plate is coaxially fixedly connected to the output shaft of the lifting cylinder, a flip suction cup with an adsorption surface downward is arranged below the lifting mounting plate, a flip cylinder for pulling the bag feeding shaft to rotate is arranged on the left side of the shaft crank, and the output shaft of the flip cylinder is hinged to the top of the shaft crank; A swing arm shaft is provided on the left side of the swing arm frame from front to back, and left seat bearings are respectively sleeved at both ends of the swing arm shaft, and the left seat bearings are installed on the frame, a connecting rod is fixed to the end of the swing arm shaft, and a straightening cylinder is fixed to the lower part of the frame, and the output shaft of the straightening cylinder is hinged to the lower end of the connecting rod; The suction cup retractable mechanism includes a bag taking mounting plate fixed to the output shaft of the bag taking cylinder, a bag lifting cylinder is fixed to the side of the bag taking mounting plate, the output shaft of the bag lifting cylinder extends downward and an "L"-shaped bag lifting mounting plate is fixed to the output shaft of the bag lifting cylinder, and a bag taking suction cup with the adsorption surface facing the left side is fixed to the left side of the bag lifting mounting plate; Two centering plates are symmetrically arranged on the front and rear sides of the bag preparation plate, and a limiting plate is arranged on the right side of the bag preparation plate; A pair of guide grooves are provided at the front and rear of the bag preparation plate, which correspond to the centering plates respectively and extend along the width direction of the bag preparation plate. Each centering plate is L-shaped. A guide block matching the guide groove is fixed under each centering plate. A gear is provided at the bottom of the bag preparation plate. Racks meshing with the gear are provided on both sides of the gear. The racks are fixedly connected to the guide blocks. A rack limiting plate is sleeved on the outside of each rack, and the rack limiting plate is fixed on the bag preparation plate. A swing arm crank is arranged above the middle of the left side of the swing arm frame, and a fixing plate hinged to the swing arm crank is fixed on the left side of the flip cylinder; A partition plate and a partition plate cylinder are sequentially arranged from top to bottom below the bag preparation plate, the output shaft of the partition plate cylinder passes through the partition plate upward and is fixedly connected to the bottom of the bag preparation plate, and a plurality of guide rods penetrating the partition plate are arranged below the bag preparation plate; The guide rail is provided with a screw slider device on the side, the screw slider device includes a screw motor installed on the frame, the output shaft of the screw motor is provided with a screw horizontally arranged from front to back through a coupling, the screw is sleeved with a moving platform, and the moving platform is fixedly connected to the slider; The working method of the bag feeding and taking-out mechanism comprises the following steps: (1) the aligning cylinder is extended to drive the connecting rod to swing, the swing arm shaft rotates counterclockwise, and the swing arm frame rotates to a horizontal state; (2) the partition cylinder is driven to lift the bag preparation plate and raise it to a suitable position; (3) a pile of packaging bags of required specifications are placed on the bag preparation plate, and two centering plates are adjusted. The centering plates slide along the guide grooves, drive the rack to move along the rack limit plate, and correct the centering of the packaging bags; (4) after the packaging bag placement adjustment is completed, the lifting cylinder drives the flipping suction cup to move downward and adsorb a packaging bag on the bag preparation plate; (5) the lifting cylinder is reset, the flipping cylinder is retracted, the shaft crank is pulled to swing, and the bag feeding shaft rotates counterclockwise, so that the lifting cylinder and the flipping suction cup are pressed. The bag is rotated 90 degrees counterclockwise, and the bag changes from a horizontal state to a vertical state; (6) The lifting cylinder extends horizontally to send the bag to the right to facilitate the bag-taking mechanism to take the bag; (7) The screw slider device drives the suction cup extension mechanism and the bag-taking cylinder to move from the middle station to the left station or the right station, and the bag-lifting cylinder is in an extended state. The bag-taking cylinder extends and pushes the bag-taking suction cup to move to the right, sucking the bag on the bag-feeding mechanism, and resetting the bag-feeding mechanism; (8) The bag-lifting cylinder contracts to make the bag leave the original bag storage position, and the screw motor rotates to drive the screw to rotate, and the moving platform drives the bag-taking cylinder, the bag-lifting cylinder, the bag-taking suction cup and the adsorbed bag to move back to the middle station, and then the bag is handed over to the next process, completing the bag-feeding and bag-taking processes.

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