Automatic binding device for packaging bags

Abstract

This invention discloses an automatic packaging bag binding device, comprising a frame, a feeding plate located at the upper end of the frame, a support plate fixedly connected to the frame, the support plate being located on one side of the feeding plate with its upper surface lower than the lower surface of the feeding plate, and a drive component on the frame for moving the feeding plate closer to or away from the support plate; a pressure plate located directly above the support plate, with a drive component on the frame for moving the pressure plate vertically; a material cylinder fixedly connected to the upper end of the frame for storing elastic bands; several support rods, all parallel to the support plate, with a drive assembly on the frame for closing or opening all the support rods, and a gripping assembly for placing the elastic bands in the material cylinder around the outside of all the support rods; and a moving frame located between the material cylinder and the support plate, with a drive component on the frame for moving the moving frame, and multiple positioning rods fixedly connected to the side of the moving frame closest to the material cylinder, with the width of the support plate greater than the distance between two adjacent positioning rods laterally. This application improves the binding efficiency of packaging bags.

Description

Technical Field

[0001] This invention relates to the field of packaging equipment, and more particularly to an automatic bag-tying device. Background Technology

[0002] In the packaging industry, packaging bags are a commonly used packaging consumable. When packaging bags are finished and need to be transported and stored, a certain number of packaging bags are usually folded into a predetermined shape and then tied and secured with materials such as cable ties or rubber bands.

[0003] Related technology can be found in Chinese Patent No. CN218949587U, which discloses a bundling mechanism for plastic packaging bags. The mechanism includes a frame and a base. The base is located at the bottom of the frame, and a bundling and shaping chamber is located inside the frame. Symmetrically arranged first and second openings are formed on the front and rear ends of the bundling and shaping chamber. A third opening is formed on the side wall of the chamber. A first groove is formed at the bottom of the chamber, and a pusher block of the same size as the groove is placed inside the groove. By setting up the bundling and shaping chamber, the first opening, the third opening, and the second opening, and utilizing their mutual cooperation, three binding ropes for bundling can be placed in the first opening, the third opening, and the second opening respectively, facilitating the packaging of plastic bags placed in the bundling and shaping chamber. The mechanism is simple in structure, has few electrical components, and low manufacturing and maintenance costs.

[0004] Regarding the aforementioned technologies, during the process of binding packaging bags, operators need to manually place and knot the binding ropes, resulting in a low degree of automation. When binding large quantities of packaging bags, long-term work inevitably leads to a decline in the physical strength of operators, affecting the efficiency of binding packaging bags. Summary of the Invention

[0005] To improve the efficiency of binding packaging bags, this application provides an automatic packaging bag binding device.

[0006] This application provides an automatic packaging bag binding device, which adopts the following technical solution: An automatic packaging bag binding device includes a frame, a feeding plate located at the upper end of the frame, a support plate fixedly connected to the frame, the support plate located on one side of the feeding plate with its upper surface lower than the lower surface of the feeding plate, and a drive component 1 for moving the feeding plate closer to or away from the support plate; a pressure plate located directly above the support plate, and a drive component 2 for moving the pressure plate vertically; a material cylinder fixedly connected to the upper end of the frame for storing elastic bands; several support rods, all parallel to the support plate, and a drive assembly for closing or opening all the support rods, and a gripping assembly for attaching the elastic bands in the material cylinder to the outside of all the support rods; and a moving frame located between the material cylinder and the support plate, and a drive component 3 for moving the moving frame, with multiple positioning rods fixedly connected to the side of the moving frame closest to the material cylinder, and the width of the support plate being greater than the distance between two adjacent positioning rods in the lateral direction.

[0007] By adopting the above technical solution, under the support of the frame, drive component one conveys the folded packaging bag to the support plate via the feeding plate, causing the packaging bag to move above the support plate. Drive component two drives the pressure plate to move downward, and the pressure plate cooperates with the support plate to press the packaging bag tightly. At this time, one side of the packaging bag is located outside the support plate. After the packaging bag is pressed, the feeding plate resets. In the initial state, all support rods are in the closed state. The gripping component puts the rubber band in the material cylinder onto the outside of all support rods. The drive component drives all support rods to open. When the support rods move, they drive the rubber bands to open. Drive component three drives the moving frame to move towards the material cylinder. When all support rods are opened, the distance between adjacent support rods in the horizontal direction is greater than the width of the moving frame, and the distance between adjacent support rods in the vertical direction is less than the height of the moving frame. At this time, all positioning rods are located between all the opened support rods. When the moving frame moves, it pushes the expanded rubber band to detach from the support rod and move to the outside of all the positioning rods. The driving component three drives the moving frame to reset. The moving frame drives the rubber band to move closer to the support plate through the positioning rod. When the support plate and the rubber band come into contact and the moving frame continues to move, the support rod pushes the rubber band to detach from the positioning rod and fit over the outside of the packaging bag, thus completing the binding of the packaging bag. No manual assistance is required when binding the packaging bag, which helps to improve the binding efficiency of the packaging bag.

[0008] Optionally, a clamping plate is fixed at the lower end of the feeding plate, the clamping plate extends towards the support plate, and the clamping plate is inclined downward along the extension direction.

[0009] By adopting the above technical solution, when placing the packaging bag, the packaging bag is folded and placed on the side of the feeding plate close to the support plate. At this time, one side of the packaging bag is above the feeding plate, and the other side is between the clamping plate and the feeding plate. The pressure plate helps to improve the convenience of the support plate when conveying the packaging bag.

[0010] Optionally, the drive assembly includes cylinder one and cylinder two. Cylinder one is fixedly connected to the frame, and cylinder two is slidably connected to the frame in the lateral direction. The frame is provided with a push cylinder that drives cylinder two to move closer to or away from cylinder one. The support rod includes support rod one, support rod two, support rod three, and support rod four. Support rod one is fixedly connected to cylinder one, support rod two is fixedly connected to the output end of cylinder one, support rod three is fixedly connected to cylinder two, and support rod four is fixedly connected to the output end of cylinder two.

[0011] By adopting the above technical solution, under the support of cylinder one, support rod one is in a positioning state, pushing cylinder one to drive cylinder two to move, so that support rod three moves closer to or away from support rod one. When cylinder one and cylinder two work, they drive support rod two and support rod four to move vertically, thereby enabling support rod two, support rod three and support rod four to move closer to or away from support rod one, thus realizing the opening and closing of all support rods.

[0012] Optionally, all the support rods are slidably connected to straight rods along the axial direction. Each support rod is hinged to a stop block adapted to a clearance opening. A torsion spring is provided between the stop block and the support rod. The support rod has a clearance opening adapted to the stop block. The torsion spring is used to drive the stop block into the clearance opening. An elastic element is provided between the straight rod and the support rod. The elastic element is used to drive the straight rod away from the material cylinder. A contact block is fixed to the end of the straight rod away from the support plate. The contact block is located on the side of the stop block away from the support plate and abuts against the stop block. The frame is provided with several abutting blocks one and abutting blocks two. All abutting blocks one are fixedly connected to the frame. When the support rod two... When support rods three and four open or close, the corresponding straight rods abut against block one. Block two slides vertically to the frame. There are two blocks of block two. The straight rod connected to support rod one is located between the two blocks of block two. A straight plate slides vertically to the frame. Both blocks of block two are fixedly connected to the straight plate. Two extension blocks are fixedly connected to the straight plate. A push block adapted to the extension block is fixed at the output end of cylinder one. The push block is located between the two extension blocks. An elastic element two is provided between the frame and the straight plate. In the natural state of elastic element two, the straight rod connected to support rod one is located between the two blocks of block two.

[0013] By adopting the above technical solution, in the initial state, all support rods are in the closed state. At this time, the straight rods connected to support rods 2, 3, and 4 are all in contact with the abutment block 1. Under the action of the abutment block 1, the straight rods drive the contact blocks away from the stop blocks. At this time, the elastic element 1 is in a deformed state, and the stop blocks are housed in the clearance opening under the action of the torsion spring. The pushing block abuts against the extension block near support rod 1, and the extension block drives the straight plate to move down. When the straight plate moves, it drives the abutment block 2 located above to abut against the straight rod connected to support rod 1, thereby making all the stop blocks on support rod 1 located in the clearance opening. When cylinder 2 moves, or when the output ends of cylinder 1 and cylinder 2 extend or retract, the straight rods connected to support rods 2, 3, and 4 separate from the corresponding abutment blocks 1. At this time, the straight rods drive the contact blocks to contact the stop blocks under the action of the elastic element 1, causing the contact blocks to drive the stop blocks to rotate out of the clearance opening. When the output end of cylinder one moves, it causes the pushing block and the extension block to separate, allowing the straight plate to reset under the action of elastic element two. At this time, the straight rod connected to support rod one is located between the two contact blocks two, and the stop block connected to support rod one extends out from the clearance groove. When support rod two, support rod three, and support rod four are in a position away from support rod one, the corresponding straight rods contact another set of contact blocks one again, causing the corresponding stop blocks to retract into the clearance opening. At this time, the pushing block contacts the extension block away from support rod one and causes the straight plate to move upward, causing the contact block two located below to contact the straight rod connected to support rod one again, causing the stop block connected to support rod one to retract into the clearance opening. The stop block helps to improve the connection stability between the elastic band and the support rod.

[0014] Optionally, the gripping assembly includes a transverse plate, a moving block, and a gripping hook. The transverse plate is slidably connected to the frame in the vertical direction. The frame is fixedly connected to a first guide rail cylinder that drives the transverse plate to move. The moving block is slidably connected to the transverse plate in the horizontal direction. The transverse plate is fixedly connected to a second guide rail cylinder that drives the moving block to move. The moving block is fixedly equipped with a motor. The gripping hook is vertically fixed to the output end of the motor. The end of the gripping hook away from the motor has a locking interface adapted to a rubber band. The lower end of the moving block is fixed with a fixing block adapted to the locking interface.

[0015] By adopting the above technical solution, the first guide rail cylinder drives the transverse plate to move vertically. When the transverse plate moves, it causes the moving block to move closer to or away from the material cylinder. The transverse plate, through the second guide rail cylinder, drives the moving block to move laterally, causing the moving block to move closer to or away from the support plate. The moving block drives the grab hook to rotate through the motor. After the grab hook extends into the material cylinder, it hooks any rubber band through the snap-fit ​​interface and cooperates with the fixed block to limit the rubber band, so that the rubber band is aligned with the closed support rod.

[0016] Optionally, the frame is fixedly connected to a vacuum device, the vacuum device is connected to a flexible hose, the gripper hook has a through hole communicating with the card interface, the end of the flexible hose away from the vacuum device is connected to the through hole, the gripper hook has a clamping block adapted to the card interface, the clamping block is fixedly connected to a pull rod, the gripper hook has a moving hole adapted to the pull rod, the moving hole is connected to the through hole, the pull rod is inserted into the moving hole and is slidably connected to the gripper hook along the length direction of the moving hole.

[0017] By adopting the above technical solution, the vacuum device creates a vacuum in the through hole through the hose. At this time, the grab hook adsorbs the rubber band through the through hole. After the vacuum is created in the through hole, the suction force is applied to the pull rod through the moving hole, so that the pull rod drives the clamping block to clamp and position the rubber band, which helps to improve the connection stability between the rubber band and the grab hook.

[0018] Optionally, the lower end of the gripper hook is hinged with two swing rods, which extend along the gripper hook toward the clamping block. The end of the swing rod away from the clamping block is provided with an adjusting rod, which is slidably connected to the swing rod along its length. The gripper hook has two air extraction holes communicating with the through hole. A piston rod is provided in the air extraction hole, which is slidably connected to the gripper hook along its length. The end of the adjusting rod away from the swing rod is hinged to the piston rod. An elastic element three is provided between the piston rod and the gripper hook, which is used to drive the piston rod away from the gripper hook.

[0019] By adopting the above technical solution, in the initial state, the three pairs of piston rods of the elastic element apply a force away from the gripper hook. Under the action of the piston rods, the end of the swing rod away from the piston rod is positioned close to the gripper hook. When the gripper hook holds the rubber band, both swing rods are inside the rubber band. When a vacuum is generated in the through hole, it drives the piston rod to move along the evacuation hole. When the piston rod moves, it drives the swing rod to rotate through the adjusting rod, causing the swing rod to open the rubber band, which improves the convenience of putting on the rubber band.

[0020] Optionally, the frame is slidably connected with a baffle along the vertical direction. The baffle is located on the side of the support plate away from the feeding plate. The frame is equipped with a lifting cylinder that drives the baffle to move vertically. The frame is slidably connected with a push plate that is directly opposite the baffle along the horizontal direction. Several top plates are fixedly connected to the end of the push plate near the baffle. The frame is equipped with a transverse moving cylinder that drives the baffle to move closer to or away from the baffle. Several vertical plates that are staggered with the top plates are fixedly connected to the upper end of the top plates. A guide plate is fixedly connected to the frame. The guide plate is located on the side of the baffle near the support plate. The vertical plates pass through the guide plate and are slidably connected to the guide plate. The guide plate has a clearance groove that matches the top plate.

[0021] By adopting the above technical solution, after the packaging bag is bundled, when the feeding plate feeds again, it pushes the bundled packaging bag above the guide plate, causing the packaging bag to move closer to the vertical plate along the guide plate. All the vertical plates cooperate to limit the packaging bag. The horizontal movement cylinder drives all the top plates to move through the corresponding clearance grooves and move towards the vertical plate. When the top plate comes into contact with the packaging bag, the lifting cylinder drives the baffle to move down, causing the baffle to move the vertical plate to avoid the packaging bag. When the top plate moves the packaging bag to the side of the vertical plate away from the support plate, the lifting cylinder drives the vertical plate to move up. At this time, the horizontal movement cylinder drives the top plate to reset, thereby transferring the packaging bag to the side of the vertical plate away from the support plate and preventing the packaging bag from moving closer to the guide plate, which helps to improve the convenience of unloading the packaging bag.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. Supported by the frame, drive component one conveys the folded packaging bag to the support plate via the feeding plate, moving the packaging bag above the support plate. Drive component two then drives the pressure plate downwards, which, in conjunction with the support plate, presses the packaging bag tightly. At this point, one side of the packaging bag is located outside the support plate. After the packaging bag is pressed, the feeding plate resets. Initially, all support rods are in a closed state. The gripping component places the elastic bands in the material cylinder onto the outside of all support rods. The drive component then opens all support rods, and as the support rods move, they cause the elastic bands to expand. Drive component three moves the moving frame towards the material cylinder. When all support rods are open, the distance between adjacent support rods laterally is greater than the width of the moving frame, and the distance between adjacent support rods vertically is less than the height of the moving frame. At this point, all positioning rods are located between all the opened support rods. When the moving frame moves, it pushes the expanded rubber band to detach from the support rod and move to the outside of all the positioning rods. The driving component three drives the moving frame to reset. The moving frame drives the rubber band to move closer to the support plate through the positioning rod. When the support plate and the rubber band come into contact and the moving frame continues to move, the support rod pushes the rubber band to detach from the positioning rod and fit over the outside of the packaging bag, thus completing the binding of the packaging bag. No manual assistance is required when binding the packaging bag, which helps to improve the binding efficiency of the packaging bag. 2. In the initial state, the three pairs of piston rods of the elastic element apply a force away from the gripper hook. Under the action of the piston rods, the end of the swing arm away from the piston rod is positioned close to the gripper hook. When the gripper hook holds the rubber band, both swing arms are inside the rubber band. When a vacuum is generated in the through hole, it drives the piston rod to move along the evacuation hole. As the piston rod moves, it drives the swing arm to rotate via the adjusting rod, causing the swing arm to open the rubber band, which improves the convenience of putting on the rubber band. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the embodiment.

[0024] Figure 2This is a schematic diagram designed to highlight the positions of the support plate and the feed plate.

[0025] Figure 3 This is a diagram designed to highlight the position of the moving block.

[0026] Figure 4 This is a schematic diagram designed to highlight the grappling hook structure.

[0027] Figure 5 This is a schematic diagram designed to highlight the connection between the clamping block and the grabber.

[0028] Figure 6 This is a schematic diagram designed to highlight the pendulum structure.

[0029] Figure 7 This is a schematic diagram designed to highlight the support rod structure.

[0030] Figure 8 yes Figure 3 An enlarged schematic diagram of part A in the middle.

[0031] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Support plate; 12. Feeding plate; 121. Clamping plate; 13. Drive component one; 14. Pressure plate; 141. Drive component two; 15. Moving frame; 151. Positioning rod; 16. Drive component three; 17. Material cylinder; 18. Push cylinder; 191. Contact block one; 192. Contact block two; 193. Straight plate; 194. Extension block; 195. Elastic component two; 21. Support rod one; 22. Support rod two; 23. Support rod three; 24. Support rod four; 25. Straight rod; 251. Contact block; 252. Elastic component one; 261. Stop block; 262. Clearance opening; 263. Torsion spring; 3 1. Drive assembly; 31. Cylinder 1; 311. Push block; 32. Cylinder 2; 4. Gripping assembly; 41. Horizontal movement plate; 411. First guide rail cylinder; 42. Moving block; 421. Second guide rail cylinder; 43. Gripping hook; 431. Snap-in interface; 432. Through hole; 433. Moving hole; 434. Air extraction hole; 435. Piston rod; 44. Clamping block; 441. Pull-out rod; 45. Swing rod; 451. Adjusting rod; 5. Vacuum device; 51. Hose; 61. Baffle; 62. Vertical plate; 63. Lifting cylinder; 64. Guide plate; 641. Clearance groove; 65. Push plate; 66. Top plate; 67. Horizontal movement cylinder. Detailed Implementation

[0032] The present application will be further described in detail below with reference to all the accompanying drawings.

[0033] This application discloses an automatic packaging bag binding device.

[0034] Example: Reference Figure 1 and Figure 2An automatic packaging bag binding device includes a frame 1, a feeding plate 12 at the upper end of the frame 1, the feeding plate 12 being arranged horizontally, and a driving component 13 at the upper end of the frame 1. The driving component 13 is a commonly used structure in this technical field; in this embodiment, the driving component 13 is preferably a cylinder. A support plate 11 is horizontally fixed at the upper end of the frame 1, and the driving component 13 is used to drive the feeding plate 12 to move closer to or away from the support plate 11.

[0035] Reference Figure 1 and Figure 2 A clamping plate 121 is fixed to the side of the feeding plate 12 near the support plate 11. The clamping plate 121 is located at the lower end of the feeding plate 12 and is inclined from top to bottom on the side of the clamping plate 12 near the support plate 11. The folded packaging bag is placed on the side of the feeding plate 12 near the support plate 11, with one side of the packaging bag positioned between the clamping plate 121 and the feeding plate 12. The clamping plate 121 supports the packaging bag, which helps to improve the connection stability between the packaging bag and the feeding plate 12, allowing the packaging bag to remain folded during transportation.

[0036] Reference Figure 1 and Figure 2 The upper surface of the support plate 11 is lower than the lower surface of the feeding plate 12. Driven by the first driving component 13, the feeding plate 12 moves the packaging bag above the support plate 11, at which point the feeding plate 12 is located on one side of the support plate 11. A pressure plate 14 is vertically slidably connected to the frame 1. A second driving component 141, which is a cylinder, is mounted on the frame 1. The cylinder's output end is fixedly connected to the pressure plate 14. The second driving component 141 moves the pressure plate 14 closer to the support plate 11, causing the pressure plate 14 and support plate 11 to cooperate in clamping and positioning the packaging bag. At this time, the feeding plate 12 is reset under the drive of the first driving component 13.

[0037] Reference Figure 2 and Figure 3 A movable frame 15 is slidably connected to the frame 1 laterally. The pressure plate 14 and support plate 11 are both located inside the movable frame 15. The movable frame 15 has an opening on the side near the feeding plate 12 to allow the feeding plate 12 to pass. A drive unit 16 is installed on the frame 1 to move the movable frame 15. A material cylinder 17 is installed at the other end of the frame 1. The material cylinder 17 contains a large number of rubber bands. The drive unit 16 is a commonly used mechanism in this technical field. In this embodiment, the drive unit 16 is selected as a motor and belt structure, used to drive the movable frame 15 to reciprocate between the material cylinder 17 and the support plate 11. Multiple positioning rods 151 are fixed to one end of the movable frame 15 near the material cylinder 17. In this embodiment, there are four positioning rods 151, and the four positioning rods 151 are evenly distributed in a rectangular shape. When the movable frame 15 moves, it drives all the positioning rods 151 to move.

[0038] Reference Figure 3 and Figure 4The frame 1 is equipped with a gripping assembly 4, which includes a transverse plate 41, a moving block 42, and a gripping hook 43. The transverse plate 41 is located directly above the material cylinder 17 and is slidably connected to the frame 1 in the vertical direction. The frame 1 is equipped with a first guide cylinder 411, which is arranged in the horizontal direction and its output end is fixedly connected to the transverse plate 41. When the first guide cylinder 411 is working, it drives the transverse plate 41 to move closer to or away from the material cylinder 17.

[0039] Reference Figure 2 and Figure 3 The movable block 42 is located at the lower end of the transverse plate 41 and is slidably connected to the transverse plate 41 in the transverse direction. When the transverse plate 41 moves, it drives the connecting block to move. The transverse plate 41 is equipped with a second guide cylinder 421. The output end of the second guide cylinder 421 is fixedly connected to the movable block 42. When the second guide cylinder 421 works, it drives the movable block 42 to move, and the moving direction of the movable block 42 along the transverse plate 41 is the same as the moving direction of the movable frame 15.

[0040] Reference Figure 3 and Figure 4 The gripper hook 43 is located on the side of the movable block 42 near the material cylinder 17. The movable block 42 is equipped with a motor, and the output end of the motor is fixedly connected to the gripper hook 43. The gripper hook 43 is set along the movable block 42, and the motor drives the gripper hook 43 to rotate when it is working. The lower end of the gripper hook 43 extends horizontally, and the end of the gripper hook 43 away from the motor is provided with a locking interface 431. The lower end of the movable block 42 is fixedly provided with a fixing block. When the gripper hook 43 is in contact with the movable block 42, the locking interface 431 is directly opposite the fixing block.

[0041] Reference Figure 3 and Figure 4 When a rubber band needs to be gripped, the gripper hook 43 is positioned away from the moving block 42. At this time, the first guide rail cylinder 411 drives the moving block 42 into the material cylinder 17 via the transverse plate 41, and the motor drives the gripper hook 43 to rotate. When the gripper hook 43 passes through the middle of any rubber band, it clamps the rubber band through the locking interface 431. The frame 1 is equipped with a vacuum device 5, which is connected to a flexible hose 51. When the vacuum device 5 is working, it generates suction in the flexible hose 51.

[0042] Reference Figure 3 and Figure 4 The gripper hook 43 has a through hole 432. The end of the hose 51 furthest from the vacuum device 5 is connected to the through hole 432. The through hole 432 is connected to the snap-fit ​​interface 431. When the gripper hook 43 hooks multiple rubber bands, the rubber band closest to the through hole 432 is attracted, thereby improving the connection stability between the rubber band and the gripper hook 43. After the gripper hook 43 hooks the rubber band, the motor drives the gripper hook 43 to shake, thereby causing the rubber band furthest from the through hole 432 to detach from the gripper hook 43.

[0043] Reference Figure 4 and Figure 5 The gripper hook 43 is equipped with a clamping block 44, which is located at the card interface 431 and at the lower end of the gripper hook 43. A pull rod 441 is fixed to the upper end of the clamping block 44. The gripper hook 43 has a movable hole 433 communicating with the through hole 432. The pull rod 441 is located in the movable hole 433 and is slidably connected to the gripper hook 43 along the length of the movable hole 433. When the gripper hook 43 attracts the rubber band through the through hole 432, the pull rod 441, under the action of the suction force in the through hole 432, drives the clamping block 44 to clamp the rubber band, thereby further improving the connection stability between the rubber band and the gripper hook 43.

[0044] Reference Figure 4 and Figure 6 The lower end of the grab hook 43 is hinged with two swing rods 45, which extend along the grab hook 43. The grab hook 43 has two air extraction holes 434 connecting the through holes 432 to the outside. A piston rod 435 is slidably connected to the grab hook 43 along the length of the air extraction holes 434. When a vacuum is generated in the through holes 432, the piston rod 435 moves along the air extraction holes 434. There is an elastic element three between the piston rod 435 and the grab hook 43. The elastic element three is a spring. One end of the spring is fixedly connected to the piston rod 435, and the other end is fixedly connected to the grab hook 43. When the elastic element three is in its natural state, it drives the piston rod 435 to move along the air extraction holes 434 away from the through holes 432.

[0045] Reference Figure 4 and Figure 6 An adjusting rod 451 is provided at the end of the swing arm 45 away from the card interface 431. The adjusting rod 451 is slidably connected to the swing arm 45 along its length. The lower end of the piston rod 435 is hinged to the adjusting rod 451. When the piston rod 435 moves, it drives the swing arm 45 to move via the adjusting rod 451. In the initial state, both swing arms 45 are positioned close to the hook 43. When the hook 43 is hooked with a rubber band, a vacuum is created in the through hole 432 by the vacuum device 5. At this time, the piston rod 435 approaches the through hole 432 under the suction force within the through hole 432. When the piston rod 435 moves, it drives the swing arm 45 away from the hook 43 via the adjusting rod 451. When the swing arm 45 swings, it causes the rubber band to open.

[0046] Reference Figure 3 and Figure 7The frame 1 is also provided with support rods corresponding to the positioning rod 151, and all support rods are arranged parallel to the positioning rod 151. All support rods are provided with straight rods 25, and the support rods have a circular hole along the axial direction. The straight rods 25 are located in the circular hole and are slidably connected to the support rods along the axial direction. An elastic element 252 is provided between the straight rods 25 and the support rods. The elastic element 252 is a spring. One end of the spring is fixedly connected to the support rod, and the other end is fixedly connected to the straight rod 25. In its natural state, the elastic element 252 drives the straight rod 25 to move closer to the support plate 11.

[0047] Reference Figure 3 and Figure 7 The support rod is 11 meters away from the support plate (refer to...) Figure 2 One end of the support rod has multiple clearance openings 262 communicating with the circular holes, and a stop block 261 is hinged along the clearance opening 262. A torsion spring 263 is provided between the stop block 261 and the support rod, and the torsion spring 263 is used to drive the stop block 261 to be housed in the clearance opening 262. A straight rod 25 passes through all the stop blocks 261, and the end of the straight rod 25 away from the support plate 11 has a contact block 251. Under the action of the elastic element 252, the straight rod 25 drives the contact block 251 to abut against the stop block 261, and pushes the stop block 261 to extend out of the clearance opening 262. At this time, the torsion spring 263 is in a deformed state.

[0048] Reference Figure 3 and Figure 7 The four support rods are designated as support rod 1 (21), support rod 22, support rod 3 (23), and support rod 4 (24). The frame 1 is equipped with a drive assembly 3, which includes cylinder 1 (31) and cylinder 2 (32). Both cylinder 1 (31) and cylinder 2 (32) are vertically arranged, and cylinder 1 (31) is fixedly connected to the frame 1. Support rod 1 (21) is vertically fixed to the side of cylinder 1 (31) near the material cylinder 17. Support rod 2 (22) is fixedly connected to the output end of cylinder 1 (31). When cylinder 1 (31) is working, it drives support rod 2 (22) to move closer to or away from support rod 1 (21).

[0049] Reference Figure 3 and Figure 7 Cylinder 2 32 and Cylinder 1 31 are located in the same vertical plane, and Cylinder 2 32 is slidably connected to the frame 1 in the lateral direction. The frame 1 is equipped with a push cylinder 18, and the output end of the push cylinder 18 is fixedly connected to Cylinder 2 32. The push cylinder 18 drives Cylinder 2 32 to move closer to or away from Cylinder 1 31. Support rod 3 23 is fixedly connected to Cylinder 2 32. When Cylinder 2 32 moves, it drives support rod 3 23 to move. Support rod 4 24 is fixed to the output end of Cylinder 2 32. The support rod 4 24 moves closer to or away from support rod 3 23 in the vertical direction through Cylinder 2 32. In the initial state, support rod 2 22, support rod 3 23 and support rod 4 24 are all located close to support rod 1 21.

[0050] Reference Figure 3 and Figure 7 At this time, the moving block 42 moves via the grab hook 43 (see reference). Figure 4 The elastic band is pulled away from the feed cylinder 17 and is placed on the outside of support rod 1 21, support rod 22, support rod 3 23 and support rod 4 24. The frame 1 is also fixed with multiple contact blocks 1 191 and two contact blocks 2 192. Multiple contact blocks 251 are divided into two groups. One group of contact blocks 251 is located on the frame 1 near support rod 1 21. When support rod 2 22, support rod 3 23 and support rod 4 24 are in the position closest to support rod 1 21, the straight rods 25 connected to the three of them all abut against contact block 251. At this time, the straight rods 25 move closer to the feed cylinder 17 under the guidance of contact block 251.

[0051] Reference Figure 3 and Figure 8 A vertical plate 193 is slidably connected to the frame 1. Two contact blocks 251 are vertically arranged and fixedly connected to the vertical plate 193. When the vertical plate 193 moves, it drives the two contact blocks 251 to move. An elastic element 195 is provided between the vertical plate 193 and the frame 1. The elastic element 195 is a spring, with one end fixedly connected to the vertical plate 193 and the other end fixedly connected to the frame 1. In its natural state, the elastic element 195 supports the vertical rod 25 connected to the support rod 21 (see reference). Figure 7 It is located between two opposing blocks 2192.

[0052] Reference Figure 3 and Figure 8 Two extension blocks 194 are fixed to one end of the straight plate 193 near the cylinder 31. A push block 311 is fixed to the output end of the cylinder 31. When the output end of the cylinder 31 moves, it drives the push block 311 to move. The push block 311 is located between the two extension blocks 194. When the cylinder 31 drives the support rod 22 to approach the support rod 21, the push block 311 moves vertically towards the extension block 194 located below. When the push block 311 abuts against the extension block 194, it drives the contact block 192 to move through the straight plate 193, thereby causing the contact block 192 to move and the straight rod 25 (reference) connected to the support rod 21. Figure 7 ) contact, thereby causing the straight rod 25 (reference) Figure 7 Move towards the direction of the material cylinder 17.

[0053] Reference Figure 3 and Figure 8 After the elastic band is sleeved on the outside of support rod 1, support rod 22, support rod 33, and support rod 4 24, the cylinder 18 is pushed to move cylinder 2 32 away from cylinder 1 31. When cylinder 2 32 moves, it moves support rod 3 23 and support rod 4 24 away from support rod 1 21. At this time, the elastic band is stretched and opened laterally. The straight rod 25 connected to support rod 3 23 and support rod 4 24 (see reference) Figure 7 When the straight rod 25 separates from the contact block 191 at the support rod 21, the straight rod 25, under the action of the elastic element 252, drives the contact block 251 to contact the corresponding stop block 261, thereby pushing the stop block 261 out of the clearance opening 262, which helps to reduce the probability of the rubber band falling off the support rod 21 and the support rod 22.

[0054] Reference Figure 3 and Figure 8 When the output ends of cylinders 31 and 32 extend simultaneously, support rods 22 and 24 move vertically away from support rod 21, causing the elastic band to expand vertically. When cylinder 31 moves support rod 22 away from support rod 21, the straight plate 193 returns to its original position under the action of elastic element 252. At this time, the straight rod 25 connected to support rod 21 (see reference)... Figure 7 Once again, it is positioned between the two contact blocks 192, and the stop block 261 connected to the support rod 21 is in an open state.

[0055] Reference Figure 3 and Figure 8 When support rod 22, support rod 3, and support rod 4 are at their furthest point from support rod 1 21, the straight rod 25 connecting them (see reference) Figure 7 When the cylinder 31 outputs, it drives the support rod 22 away from the support rod 21, causing the push block 311 to contact the upper extension block 194. The extension block 194 then drives the straight plate 193 upwards, causing the straight plate 193 to drive the lower contact block 251 to contact the straight rod 25 of the support rod 21, thus putting the stop block 261 connected to the support rod 21 back into the retracted state.

[0056] Reference Figure 2 and Figure 3 When the rubber band opens, the driving component 16 moves the moving frame 15 closer to the material cylinder 17. It should be noted that the width of the moving frame 15 in the lateral direction is greater than the distance between support rods 22 and 33. The moving frame 15 passes between support rods 1, 21, 22, 3, and 4. At this point, the moving frame 15 contacts the rubber band and pushes it closer to the material cylinder 17, thus separating the rubber band from support rods 21, 22, 3, and 4. The four positioning rods 151 are all located between the opened support rods 1, 22, 3, and 4. After separation, the rubber band tends to return to its original position under elasticity, thus shifting to the outside of the four positioning rods 151.

[0057] Reference Figure 2 and Figure 3 The driving component 16 moves the moving frame 15 closer to the support plate 11. At this time, the packaging bag, held by the pressure plate 14 and the support plate 11, passes through the middle of the moving frame 15. As the moving frame 15 moves, it moves the elastic band closer to the support plate 11. The distance between two adjacent positioning rods 151 in the lateral direction meets the width of the support plate 11. As the moving frame 15 moves, it causes the elastic band to disengage from the support plate 11. Under the obstruction of the support plate 11, the elastic band disengages from the positioning rods 151 again and moves to the outside of the packaging bag, thus completing the binding of the packaging bag. Binding the packaging bag does not require manual operation, which helps to improve the binding efficiency of the packaging bag.

[0058] Reference Figure 2 and Figure 3 A guide plate 64 is fixed to the lower end of the frame 1. When the feeding plate 12 moves another set of packaging bags toward the support plate 11, it pushes the bundled packaging bags to detach from the support plate 11 and cause them to fall toward the guide plate 64. A baffle 61 is slidably connected to the frame 1 vertically. The baffle 61 is located on the side of the guide plate 64 away from the support plate 11. A lifting cylinder 63 is installed on the frame 1. The output end of the lifting cylinder 63 is fixedly connected to the baffle 61. The lifting cylinder 63 drives the baffle 61 to move vertically. Multiple vertical plates 62 are fixed to the upper end of the baffle 61. When the baffle 61 moves, it drives the vertical plates 62 to move. The vertical plates 62 pass through the guide plate 64 and are slidably connected to the guide plate 64. The vertical plates 62 cooperate with the guide plate 64 to block the packaging bags.

[0059] Reference Figure 2 and Figure 3 A push plate 65 is slidably connected to the frame 1 along the lateral direction. The push plate 65 is located below the support plate 11. A transverse cylinder 67 is installed on the frame 1. The output end of the transverse cylinder 67 is fixedly connected to the push plate 65. The transverse cylinder 67 drives the push plate 65 to move closer to or away from the baffle 61. Multiple top plates 66 are fixed on the side of the push plate 65 near the baffle 61. The top plates 66 are staggered with the vertical plates 62. When the push plate 65 moves, it drives the top plates 66 to move.

[0060] The guide plate 64 has a clearance groove 641 that matches the top plate 66. Initially, the top plate 66 is located on the side of the guide plate 64 away from the vertical plate 62. When the packaging bag moves between the vertical plate 62 and the guide plate 64, the horizontal movement cylinder 67 moves the top plate 66 closer to the vertical plate 62, thereby causing all the top plates 66 to pass through the corresponding clearance groove 641 and come into contact with the packaging bag. The frame 1 has a placement plate for placing the packaging bag, which is located on the side of the vertical plate 62 away from the guide plate 64. The top plate 66 pushes the packaging bag closer to the placement plate. At this time, the lifting cylinder 63 moves the vertical plate 62 downward, allowing the vertical plate 62 to avoid the packaging bag. When the packaging bag moves to the side of the vertical plate 62 close to the placement plate, the lifting cylinder 63 moves the vertical plate 62 upward again. At this time, the horizontal movement cylinder 67 moves the top plate 66 back to its original position, and the vertical plate 62 blocks the packaging bag on the placement plate, thereby preventing the bundled packaging bag from moving towards the guide plate 64 again.

[0061] The implementation principle of the automatic packaging bag binding device in this application embodiment is as follows: Driver 13 drives the feeding plate 12 to approach the support plate 11, and the feeding plate 12 and clamping plate 121 cooperate to move the packaging bag above the support plate 11. Driver 2 141 drives the pressure plate 14 to move down, so that the pressure plate 14 and the support plate 11 cooperate to clamp and position the packaging bag. The first guide rail cylinder 411 drives the transverse plate 41 to move down, so that the moving block 42 drives the grab hook 43 into the communication. At this time, the motor 1 drives the grab hook 43 to rotate, so that the grab hook 43 grabs the rubber band. After the grab is completed, the moving block 42 and the grab hook 43 cooperate to move the rubber band up, and the second guide rail cylinder 421 drives the moving block 42 away from the material cylinder 17, so that the rubber band is set on the outside of the support rod 1 21, support rod 22, support rod 3 23 and support rod 4 24. The cylinder 18 pushes the cylinder 32 away from the cylinder 31, and the output ends of both cylinders 31 and 32 extend, thus stretching the rubber band. The driving component 16 drives the moving frame 15 to pass between cylinders 31 and 32, causing the moving frame 15 to separate the rubber band from the corresponding support rod and transfer it to the outside of the four positioning rods 151. At this time, the driving component 16 drives the moving frame 15 away from the material cylinder 17, causing the moving frame 15 to move the rubber band closer to the support plate 11. When the rubber band contacts the support plate 11, it separates from the positioning rods 151, thus allowing the rubber band to be fitted onto the outside of the packaging bag, completing the binding of the packaging bag and improving the convenience of tightening the packaging bag.

[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic packaging bag sealing device, comprising a frame (1), characterized in that: It also includes a feeding plate (12), which is located at the upper end of the frame (1). The frame (1) is fixedly connected to a support plate (11), which is located on one side of the feeding plate (12). The upper end of the support plate (11) is lower than the lower end of the feeding plate (12). The frame (1) is provided with a driving component (13) that drives the feeding plate (12) to move closer to or away from the support plate (11). The pressure plate (14) is located directly above the support plate (11), and the frame (1) is fixed with a second driving component (141) that drives the pressure plate (14) to move vertically. The material cylinder (17) is fixedly connected to the upper end of the frame (1) and is used to store rubber bands; Several support rods, all of which are parallel to the support plate (11), the frame (1) is provided with a drive assembly (3) to drive all the support rods to close or open, and the frame (1) is provided with a gripping assembly (4) for attaching the rubber band in the material cylinder (17) to the outside of all the support rods. The movable frame (15) is located between the material cylinder (17) and the support plate (11). The frame (1) is provided with a driving component (16) that drives the movable frame (15) to move. Multiple positioning rods (151) are fixedly connected to the side of the movable frame (15) near the material cylinder (17), and the width of the support plate (11) is greater than the distance between two adjacent positioning rods (151) in the transverse direction. The drive assembly (3) includes cylinder one (31) and cylinder two (32). Cylinder one (31) is fixedly connected to the frame (1). Cylinder two (32) is slidably connected to the frame (1) in the transverse direction. The frame (1) is provided with a push cylinder (18) that drives cylinder two (32) to approach or move away from cylinder one (31). The support rod includes support rod one (21), support rod two (22), support rod three (23) and support rod four (24). Support rod one (21) is fixedly connected to cylinder one (31). Support rod two (22) is fixedly connected to the output end of cylinder one (31). Support rod three (23) is fixedly connected to cylinder two (32). Support rod four (24) is fixedly connected to the output end of cylinder two (32). All the support rods are slidably connected to straight rods (25) along the axial direction. Multiple clearance slots (262) are provided at the end of the support rod away from the support plate (11). Each support rod is hinged to a stop block (261) that matches the clearance slot (262). A torsion spring (263) is provided between the stop block (261) and the support rod. The torsion spring (263) is used to drive the stop block (261) to be housed in the clearance slot (262). An elastic element (252) is provided between the straight rod (25) and the support rod. Elastic element 1 (252) is used to drive the straight rod (25) away from the barrel (17). The end of the straight rod (25) away from the support plate (11) is fixed with a contact block (251). The contact block (251) is located on the side of the stop block (261) away from the support plate (11) and abuts against the stop block (261). The frame (1) is provided with several abutting blocks 1 (191) and abutting blocks 2 (192). All abutting blocks 1 (191) are fixedly connected to the frame (1). When the support rod 2 (22) When support rods 3 (23) and 4 (24) open or close, the corresponding straight rods (25) abut against the first abutment block (191). The second abutment block (192) is slidably connected to the frame (1) vertically. There are two second abutment blocks (192). The straight rods (25) connected to support rod 1 (21) are located between the two second abutment blocks (192). The frame (1) is slidably connected to a straight plate (193) vertically. The two second abutment blocks (192) abut against the straight plate (193). The straight plate (193) is fixedly connected to two extension blocks (194). The output end of the cylinder (31) is fixed with a push block (311) that is compatible with the extension blocks (194). The push block (311) is located between the two extension blocks (194). An elastic element (195) is provided between the frame (1) and the straight plate (193). In the natural state of the elastic element (195), the straight rod (25) connected to the support rod (21) is located between the two abutting blocks (192).

2. The automatic packaging bag binding device according to claim 1, characterized in that: The lower end of the feeding plate (12) is fixed with a clamping plate (121), which extends toward the support plate (11) and is inclined downward along the extension direction.

3. The automatic packaging bag binding device according to claim 1, characterized in that: The gripping assembly (4) includes a transverse plate (41), a moving block (42), and a gripping hook (43). The transverse plate (41) is slidably connected to the frame (1) in the vertical direction. The frame (1) is fixedly connected to a first guide cylinder (411) that drives the transverse plate (41) to move. The moving block (42) is slidably connected to the transverse plate (41) in the horizontal direction. The transverse plate (41) is fixedly connected to a second guide cylinder (421) that drives the moving block (42) to move. The moving block (42) is fixedly equipped with a motor. The gripping hook (43) is fixedly perpendicular to the output end of the motor. The end of the gripping hook (43) away from the motor is provided with a card interface (431) that is compatible with a rubber band. The lower end of the moving block (42) is fixed with a fixing block that is compatible with the card interface (431).

4. The automatic packaging bag binding device according to claim 3, characterized in that: The frame (1) is fixedly connected to a vacuum device (5), which is connected to a flexible hose (51). The hook (43) has a through hole (432) that communicates with the card interface (431). The end of the flexible hose (51) away from the vacuum device (5) is connected to the through hole (432). The hook (43) is provided with a clamping block (44) that is adapted to the card interface (431). The clamping block (44) is fixedly connected to a pull rod (441). The hook (43) has a moving hole (433) that is adapted to the pull rod (441). The moving hole (433) communicates with the through hole (432). The pull rod (441) is inserted into the moving hole (433) and is slidably connected to the hook (43) along the length of the moving hole (433).

5. The automatic packaging bag binding device according to claim 4, characterized in that: The lower end of the grab hook (43) is hinged with two swing rods (45). The swing rods (45) extend along the grab hook (43) toward the clamping block (44). The end of the swing rod (45) away from the clamping block (44) is provided with an adjusting rod (451). The adjusting rod (451) is slidably connected to the swing rod (45) along its length. The grab hook (43) has two air extraction holes (434) communicating with the through hole (432). A piston rod (435) is provided in the air extraction hole (434). The piston rod (435) is slidably connected to the grab hook (43) along its length. The end of the adjusting rod (451) away from the swing rod (45) is hinged to the piston rod (435). An elastic element three is provided between the piston rod (435) and the grab hook (43). The elastic element three is used to drive the piston rod (435) away from the grab hook (43).

6. The automatic packaging bag binding device according to claim 1, characterized in that: The frame (1) is slidably connected to a baffle (61) in the vertical direction. The baffle (61) is located on the side of the support plate (11) away from the feeding plate (12). The frame (1) is provided with a lifting cylinder (63) that drives the baffle (61) to move vertically. The frame (1) is slidably connected to a push plate (65) that is directly opposite the baffle (61) in the horizontal direction. Several top plates (66) are fixedly connected to one end of the push plate (65) near the baffle (61). The frame (1) is provided with a mechanism to drive the push plate (65) to move closer to the baffle (61). Or a transverse cylinder (67) away from the baffle (61), the upper end of the baffle (61) is fixedly connected with several vertical plates (62) that are staggered with the top plate (66), the frame (1) is fixedly connected with a guide plate (64), the guide plate (64) is located on the side of the baffle (61) close to the support plate (11), the vertical plate (62) passes through the guide plate (64) and is slidably connected with the guide plate (64), the guide plate (64) is provided with a relief groove (641) that is adapted to the top plate (66).

Images