Paper-plastic lid stacking device

Abstract

This utility model discloses a paper-plastic cap stacking device, belonging to the technical field of paper product processing equipment. It aims to solve the technical problems of existing manual paper-plastic cap stacking methods being time-consuming, labor-intensive, inefficient, and unable to adapt to stacking operations of paper-plastic caps of different specifications. This utility model includes a conveying mechanism and a swing stacking mechanism. The swing stacking mechanism includes a swing table that can be tilted / horizontally switched, stacking plates with adjustable spacing, a scissor-type pitch-changing mechanism, a pusher plate, and a retractable insert plate. The scissor-type pitch-changing mechanism adaptively adjusts the spacing of the stacking plates to match the specifications of the paper-plastic caps. Combined with the extension and retraction of the insert plate, the reciprocating push of the pusher plate, and the switching of the swing table's posture, it achieves automatic layered stacking, orderly stacking, and automatic unloading of paper-plastic caps. This utility model has a compact structure, a high degree of automation, and can adapt to stacking operations of multiple specifications of paper-plastic caps, significantly reducing labor costs and effectively improving the stacking accuracy and operational efficiency of paper-plastic caps.

Description

Technical Field

[0001] This utility model belongs to the technical field of paper and plastic product processing equipment, and specifically relates to a paper-plastic cap stacking device. Background Technology

[0002] Paper-plastic caps are an important component of paper or plastic packaging products, widely used in packaging for food, daily necessities, and cultural and creative products. After being molded, paper-plastic caps need to undergo subsequent processes such as neat stacking, bagging, boxing, and sealing. Among these, the stacking process directly affects the efficiency of subsequent packaging and the neatness of the product.

[0003] Currently, the industry generally employs a purely manual operation method for stacking paper-plastic caps. Operators manually sort, align, and stack individual caps from the conveyor line until a specified quantity is reached, then manually handle and bag / box them. This traditional operation mode has several inherent drawbacks: First, manual stacking involves repetitive labor that is highly intensive, leading to fatigue over long periods and resulting in misalignment, skewing, and quantity discrepancies, resulting in poor product uniformity and consistency, and a high defect rate. Second, the speed of manual stacking is limited and cannot match the pace of automated paper-plastic cap forming and conveying production lines, leading to low overall production efficiency and difficulty in meeting the needs of large-scale mass production. Third, manual stacking incurs high labor costs, and the accuracy of manual operation is unstable, making standardized and precise stacking impossible. Fourth, traditional manual stacking methods cannot adapt to rapid switching between different sizes and specifications of paper-plastic caps, resulting in poor versatility and low production adaptability.

[0004] Currently, there is no automated stacking equipment specifically designed for paper-plastic caps. Commercially available material stacking equipment has a fixed structure and cannot adaptively adjust the stacking spacing according to the specifications of the paper-plastic caps. It also cannot achieve precise layering of paper-plastic caps, which can easily cause the paper-plastic caps to be squeezed and deformed, or to be stacked in a disordered manner. Therefore, it cannot meet the production requirements for high-precision and high-efficiency stacking of paper-plastic caps.

[0005] Therefore, there is an urgent need to design a paper-plastic cap stacking device that is highly automated, adaptable to multiple specifications of paper-plastic caps, and has high stacking accuracy, in order to overcome the shortcomings of existing technologies. Utility Model Content

[0006] To address the aforementioned problems, the purpose of this utility model is to solve the technical problems of existing paper-plastic cap stacking operations relying on manual operation, which suffers from high labor intensity, low work efficiency, poor stacking accuracy, weak versatility, and inability to adapt to automated production lines and multi-specification paper-plastic cap stacking production.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a paper-plastic cap stacking device, including a conveyor table with a surrounding conveyor belt, a swing table, a variable-pitch stacking assembly, a pushing assembly, and a lifting assembly; the rotating end of the swing table is connected to the output end of the conveyor belt; the variable-pitch stacking assembly includes several sets of stacking plates arranged side by side and a scissor-type variable-pitch mechanism for adjusting the distance between adjacent stacking plates; the stacking plates are provided with positioning grooves; the pushing assembly includes a pushing plate that can reciprocate linearly along the swing table surface and a linear drive assembly for driving the pushing plate; the lifting assembly includes a retractable insert plate that can extend through the stacking plates and a telescopic drive component for driving the insert plate to extend and retract; the swing table can switch between an inclined working posture and a horizontal discharge posture; a linearly movable front baffle is provided on the discharge side of the swing table, and the front baffle is connected to a linear motion module.

[0008] Furthermore, the linear drive assembly includes guide rails symmetrically mounted on both sides of the swing table, a synchronous belt, and a first servo motor that drives the synchronous belt to rotate. Slide seats are slidably mounted on the guide rails, and the slide seats on both sides are fixedly connected to the corresponding synchronous belts. The push plate is fixed at both ends on the slide seats on both sides, and the push plate is set perpendicular to the swing table surface.

[0009] Furthermore, the stacking plate includes an upper stacking plate and a lower stacking plate arranged correspondingly on the top and bottom, with a gap reserved between the upper stacking plate and the lower stacking plate for the insertion plate to slide through.

[0010] Furthermore, the scissor-type variable pitch mechanism includes an upper scissor-type transmission assembly and a lower scissor-type transmission assembly arranged vertically and vertically, as well as a left position adjustment assembly and a right position adjustment assembly for adjusting the left and right distance between the transmission assemblies; the upper scissor-type transmission assembly is connected to the upper stacking plate, and the lower scissor-type transmission assembly is connected to the lower stacking plate.

[0011] Furthermore, the upper scissor drive assembly and the lower scissor drive assembly have the same structure, both including several sets of X-shaped scissor units that are hinged one-to-one. The number of scissor units matches the number of stacking plates, and the hinge shaft of the scissor unit is fixedly connected to the corresponding stacking plate.

[0012] Furthermore, the left position adjustment component includes a left fixed plate, a left connecting plate, a first threaded rod, a left threaded sleeve, and a left servo motor, all fixed on the swing table. The left connecting plate is connected to the leftmost hinge shaft of the two sets of scissor-type transmission components. The first threaded rod is rotatably installed between the left fixed plate and the side wall of the swing table. The left threaded sleeve is fixed on the left connecting plate and threadedly engaged with the first threaded rod. The left servo motor drives the first threaded rod to rotate via a first belt.

[0013] Furthermore, the right-side position adjustment assembly includes a right fixed plate, a right connecting plate, a second threaded rod, a right threaded sleeve, and a right-side servo motor, all fixed on the swing table. The right connecting plate is connected to the rightmost hinge shaft of the two sets of scissor-type transmission assemblies. The second threaded rod is rotatably installed between the right fixed plate and the side wall of the swing table. The right threaded sleeve is fixed on the right connecting plate and threadedly engaged with the second threaded rod. The right-side servo motor drives the second threaded rod to rotate via a second belt.

[0014] Furthermore, the telescopic drive component is a telescopic cylinder, which is fixedly installed at the bottom of the swing platform, and the piston rod end of the telescopic cylinder is fixedly connected to the insert plate.

[0015] The beneficial effects of this utility model are: 1. This utility model adopts an automated stacking structure to replace the traditional manual stacking operation. Through the feeding of the conveyor belt, the reciprocating pushing of the pusher plate, and the layered lifting of the insert plate, the paper-plastic caps are automatically and neatly stacked in layers. No manual intervention is required throughout the process, which greatly reduces the intensity of manual labor and labor costs, and greatly improves the efficiency of paper-plastic cap stacking operation, which is suitable for the continuous operation requirements of automated production lines.

[0016] 2. This utility model is equipped with a scissor-type variable pitch mechanism. Through the cooperation of left and right servo motors and threaded rods, the spacing of each stacking plate can be precisely adjusted. It can adapt to the stacking operation of paper-plastic caps of different widths and specifications, greatly improving the equipment's versatility and adaptability, and meeting the production needs of multiple types of paper-plastic caps.

[0017] 3. The stacking plate is equipped with positioning grooves, which, together with the tilting swing table, can precisely limit the position of the paper-plastic cap, preventing the paper-plastic cap from shifting or tilting during stacking, effectively improving the stacking regularity and accuracy, and reducing the product defect rate; at the same time, the paper-plastic cap is prevented from falling and being squeezed and deformed by the expansion and contraction of the insert plate, ensuring the product forming quality.

[0018] 4. After stacking, the swing table can be switched to a horizontal position, and together with the front baffle and push plate, it can push the stacked paper-plastic caps to achieve automatic discharge of the whole. The discharge is stable and neat, and no manual handling is required, which further improves the overall automation level of the operation and optimizes the production process.

[0019] 5. The overall structure adopts a modular design, with a stable transmission structure, high adjustment precision, low equipment failure rate, and long service life. It is suitable for industrial mass production scenarios and has good promotion and application value.

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 The three-dimensional representation of the specific embodiment of this utility model Figure 1 ; Figure 2 The three-dimensional representation of the specific embodiment of this utility model Figure 2 ; Figure 3 This is a side view of a specific embodiment of the present utility model; Figure 4 for Figure 3 A magnified view of A in the middle.

[0022] Explanation of reference numerals in the attached drawings: 1. Conveyor table; 2. Conveyor belt; 3. Swinging table; 4. Stacking plate; 5. Scissor-type variable pitch mechanism; 6. Push plate; 7. Linear drive assembly; 8. Insert plate; 9. Telescopic drive component; 10. Front baffle; 11. Linear motion module; 12. Guide rail; 13. Synchronous belt; 15. Slide; 16. Upper stacking plate; 17. Lower stacking plate; 18. Upper scissor-type transmission assembly; 19. Lower scissor-type transmission assembly; 20. Left position adjustment assembly; 21. Right position adjustment assembly; 22. Scissor unit; 23. Left fixed plate; 24. Left connecting plate; 25. First threaded rod; 26. Left threaded sleeve; 27. Left servo motor; 29. ​​Right fixed plate; 30. Right connecting plate; 31. Second threaded rod; 33. Right servo motor; 34. Paper-plastic cover. Detailed Implementation

[0023] The present invention will be described in detail below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the scope of protection of the present invention.

[0024] like Figure 1 — Figure 4 As shown in the figure, this embodiment discloses a paper-plastic cap stacking device, mainly used for automated and orderly stacking of paper-plastic caps after molding. Specifically, it includes a conveyor table 1, a swing table 3, a variable-pitch stacking assembly, a pushing assembly, and a lifting assembly. A circular conveyor belt 2 is mounted on the conveyor table 1. The conveyor belt 2 is arranged horizontally for orderly conveying the molded paper-plastic caps. The number of rows of paper-plastic caps on the conveyor belt 2 corresponds one-to-one with the number of stacking plates 4, ensuring that multiple rows of paper-plastic caps can be stacked synchronously in a single operation.

[0025] The end of the swing table 3 facing the conveyor table 1 is provided with a swing shaft, which is connected to the output shaft of a swing servo motor to control the swing angle of the swing table 3.

[0026] The rotating end of the swing table 3 is connected to the output end of the conveyor belt 2. In operation, the swing table 3 is tilted, which facilitates the paper-plastic caps to adhere to the stacking plate 4 for positioning and stacking by their own weight. After stacking, the swing table 3 can rotate to switch to a horizontal position to complete the material discharge operation. The discharge side of the swing table 3 is equipped with a front baffle 10, which is driven by the linear motion module 11 to achieve linear movement back and forth. It can limit and regulate the front end of the stacked paper-plastic caps, and at the same time cooperate to complete the discharge and pushing operation.

[0027] The variable-pitch stacking assembly includes multiple sets of stacking plates 4 arranged side by side and a scissor-type variable-pitch mechanism 5. Each set of stacking plates 4 consists of an upper stacking plate 16 and a lower stacking plate 17 arranged vertically. A gap is reserved between the upper stacking plate 16 and the lower stacking plate 17 to allow the insert plate 8 to pass through and extend. The surface of the stacking plates 4 is provided with positioning grooves to precisely limit the side of the paper-plastic cap and prevent stacking offset. The scissor-type variable-pitch mechanism 5 is used to uniformly adjust the spacing of each set of stacking plates 4 to adapt to different specifications of paper-plastic caps. At the same time, the upper stacking plate 16 and the lower stacking plate 17 are guided to move along the width direction of the swing table through transverse guide rails and slider structures, respectively.

[0028] The scissor-type variable pitch mechanism 5 includes an upper scissor-type transmission assembly 18, a lower scissor-type transmission assembly 19, a left-side position adjustment assembly 20, and a right-side position adjustment assembly 21. The upper scissor-type transmission assembly 18 and the lower scissor-type transmission assembly 19 have identical structures, each equipped with multiple sets of X-shaped scissor units 22. Each scissor unit 22 is formed by hinged connection of two connecting rods in the middle, and the number of scissor units 22 corresponds one-to-one with the number of stacking plates 4. The hinge shaft of the upper scissor-type transmission assembly 18 is fixedly connected to the upper stacking plate 16, and the hinge shaft of the lower scissor-type transmission assembly 19 is fixedly connected to the lower stacking plate 17. By opening, closing, extending, and retracting the scissor units 22, the spacing of all stacking plates 4 can be adjusted synchronously, ensuring the consistency of spacing adjustment.

[0029] The left-side position adjustment assembly 20 includes a left fixed plate 23, a left connecting plate 24, a first threaded rod 25, a left threaded sleeve 26, and a left-side servo motor 27. The left fixed plate 23 is fixed to the side wall of the swing table 3. The first threaded rod 25 is rotatably assembled between the left fixed plate 23 and the swing table 3. The left threaded sleeve 26 is fixed on the left connecting plate 24 and threadedly engaged with the first threaded rod 25. The left connecting plate 24 is fixed to the leftmost hinge shaft of the two sets of scissor-type transmission assemblies. The left-side servo motor 27 is fixed to the left fixed plate 23. Its rotating shaft is connected to the first threaded rod 25 through a first belt. It can drive the first threaded rod 25 to rotate forward and backward, thereby moving the left connecting plate 24 left and right to realize the adjustment of the left-side spacing of the scissor-type transmission assembly.

[0030] The right-side position adjustment assembly 21 includes a right fixed plate 29, a right connecting plate 30, a second threaded rod 31, a right threaded sleeve, and a right-side servo motor 33. The right fixed plate 29 is fixed to the side wall of the swing table 3. The second threaded rod 31 is rotatably assembled between the right fixed plate 29 and the swing table 3. The right threaded sleeve is fixed on the right connecting plate 30 and threadedly engaged with the second threaded rod 31. The right connecting plate 30 is fixed to the rightmost hinge shaft of the two sets of scissor-type transmission assemblies. The right-side servo motor 33 is fixed to the right fixed plate 29. Its rotating shaft is connected to the second threaded rod 31 through a second belt. It can drive the second threaded rod 31 to rotate forward and backward, thereby moving the right connecting plate 30 left and right. In conjunction with the left-side adjustment structure, it can synchronously complete the precise adjustment of the spacing between the stacked plates 4.

[0031] The pushing component includes a pushing plate 6 and a linear drive component 7. The linear drive component 7 is symmetrically arranged on both sides of the swing table 3 and consists of a guide rail 12, a synchronous belt 13, a first servo motor, and a slide 15. The guide rail 12 is fixed to the side of the swing table 3, and the slide 15 is slidably mounted on the guide rail 12 and fixedly connected to the synchronous belt 13. The first servo motor drives the synchronous belts 13 on both sides to rotate synchronously, driving the slide 15 to slide linearly along the guide rail 12. The pushing plate 6 is fixed at both ends on the slides 15 on both sides and is set perpendicular to the table surface of the swing table 3. It can reciprocate linear pushing motion with the slide 15 to complete the feeding and stacking of paper-plastic caps.

[0032] The lifting assembly includes a insert plate 8 and a telescopic cylinder. The telescopic cylinder is fixedly installed at the bottom of the swing table 3. The piston rod of the telescopic cylinder is fixedly connected to the insert plate 8. The insert plate 8 can extend and retract through the gap of the stacking plate 4 to lift the paper-plastic caps layer by layer, so as to realize the stacking operation of the paper-plastic caps.

[0033] The specific working process of this utility model is as follows: Before operation, according to the specifications of the paper-plastic cap 34 to be processed, the left servo motor 27 and the right servo motor 33 are started, respectively driving the first threaded rod 25 and the second threaded rod 31 to rotate, thereby driving the left connecting plate 24 and the right connecting plate 30 to move, controlling the opening and closing of the scissor unit 22, and precisely adjusting the spacing of each stacking plate 4 to match the specifications of the paper-plastic cap. After the adjustment is completed, the conveyor belt 2 transports the paper-plastic caps in an orderly manner, and a single row of paper-plastic caps falls onto the push plate 6 of the swing table 3 and is positioned and bound to the stacking plate 4.

[0034] The linear drive assembly 7 drives the pusher plate 6 forward, pushing the paper-plastic cover to the extended position of the insert plate 8. The telescopic cylinder drives the insert plate 8 to extend and support the paper-plastic cover. Then, the pusher plate 6 resets and waits for the next row of paper-plastic covers to fall in. After the next row of paper-plastic covers is pushed into place, the insert plate 8 retracts, and the upper layer of paper-plastic covers moves down along the stacking plate 4 and stacks on top of the lower layer of paper-plastic covers. This cycle repeats to achieve orderly stacking of paper-plastic covers layer by layer. When the paper-plastic covers are stacked to a set number, the swing table 3 switches from an inclined posture to a horizontal posture. The linear motion module 11 drives the front baffle 10 to move forward and abut against the front end of the stacked paper-plastic covers, and the pusher plate 6 abuts against the bottom of the stacked paper-plastic covers. The two move forward in sync, smoothly transferring the entire stack of paper-plastic covers out, completing a single stacking operation. The subsequent bagging and boxing processes can then be carried out directly.

[0035] Of course, this paper-plastic lid stacking device can also be adapted to the stacking of cylindrical materials such as paper cups.

Claims

1. A paper-plastic cover stacking device, comprising a conveying table (1) provided with a surrounding conveying belt (2), characterized in that: It also includes a swing table (3), a variable pitch stacking assembly, a pushing assembly, and a lifting assembly; the rotating end of the swing table (3) is connected to the output end of the conveyor belt (2); the variable pitch stacking assembly includes several sets of stacking plates (4) arranged side by side and a scissor-type variable pitch mechanism (5) for adjusting the spacing between adjacent stacking plates (4); the stacking plate (4) is provided with a positioning groove; the pushing assembly includes a pushing plate (6) that can reciprocate linearly along the table surface of the swing table (3) and a linear drive assembly (7) that drives the pushing plate (6) to move; the lifting assembly includes a retractable insert plate (8) that can extend through the stacking plate (4) and a telescopic drive component (9) that drives the insert plate (8) to extend and retract; the swing table (3) can switch between an inclined working posture and a horizontal discharge posture; the discharge side of the swing table (3) is provided with a linearly movable front baffle (10); the front baffle (10) is connected to a linear motion module (11).

2. The paper lid stacker apparatus of claim 1, wherein: The linear drive assembly (7) includes a guide rail (12), a synchronous belt (13), and a first servo motor that drives the synchronous belt (13) to rotate, which are symmetrically installed on both sides of the swing table (3). A slide block (15) is slidably mounted on the guide rail (12). The slide blocks (15) on both sides are fixedly connected to the corresponding synchronous belt (13). The push plate (6) is fixed at both ends on the slide blocks (15) on both sides, and the push plate (6) is set perpendicular to the table surface of the swing table (3).

3. The paper lid stacker apparatus of claim 1, wherein: The stacking plate (4) includes an upper stacking plate (16) and a lower stacking plate (17) arranged correspondingly on the top and bottom, and a gap is reserved between the upper stacking plate (16) and the lower stacking plate (17) for the insertion plate (8) to slide through.

4. The paper lid stacker apparatus of claim 3, wherein: The scissor-type variable pitch mechanism (5) includes an upper scissor-type transmission assembly (18) and a lower scissor-type transmission assembly (19) arranged correspondingly above and below, as well as a left position adjustment assembly (20) and a right position adjustment assembly (21) for adjusting the left and right distance between the transmission assemblies; the upper scissor-type transmission assembly (18) is connected to the upper stacking plate (16), and the lower scissor-type transmission assembly (19) is connected to the lower stacking plate (17).

5. The paper-plastic cap stacking device according to claim 4, characterized in that: The upper scissor drive assembly (18) and the lower scissor drive assembly (19) have the same structure, both including several sets of X-shaped scissor units (22) that are hinged one to one. The number of scissor units (22) matches the number of stacking plates (4), and the hinge shaft of the scissor unit (22) is fixedly connected to the corresponding stacking plate (4).

6. The paper lid stacker apparatus of claim 4, wherein: The left position adjustment component (20) includes a left fixed plate (23), a left connecting plate (24), a first threaded rod (25), a left threaded sleeve (26), and a left servo motor (27) fixed on the swing table (3). The left connecting plate (24) is connected to the leftmost hinge shaft of the two sets of scissor-type transmission components. The first threaded rod (25) is rotatably installed between the left fixed plate (23) and the side wall of the swing table (3). The left threaded sleeve (26) is fixed on the left connecting plate (24) and threadedly engaged with the first threaded rod (25). The left servo motor (27) drives the first threaded rod (25) to rotate through the first belt.

7. The paper lid stacker apparatus of claim 4, wherein: The right position adjustment assembly (21) includes a right fixed plate (29), a right connecting plate (30), a second threaded rod (31), a right threaded sleeve, and a right servo motor (33) fixed on the swing table (3). The right connecting plate (30) is connected to the rightmost hinge shaft of the two sets of scissor-type transmission assemblies. The second threaded rod (31) is rotatably installed between the right fixed plate (29) and the side wall of the swing table (3). The right threaded sleeve is fixed on the right connecting plate (30) and threadedly engaged with the second threaded rod (31). The right servo motor (33) drives the second threaded rod (31) to rotate through the second belt.

8. The paper lid stacker apparatus of claim 1, wherein: The telescopic drive component (9) is a telescopic cylinder, which is fixedly installed at the bottom of the swing table (3), and the piston rod end of the telescopic cylinder is fixedly connected to the insert plate (8).

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