A paper tearing device

Abstract

This utility model provides a paper-tearing device, belonging to the field of cardboard processing. It includes a side-clamping assembly, a suction side-clamping assembly, and a bottom-clamping assembly. The side-clamping and suction side-clamping assemblies can position and clamp small pieces of cardboard, while the bottom-clamping assembly clamps the bottom of the cardboard and can lower it. The side-clamping assembly includes a clamping plate, a clamping arm, and a swing clamping plate driver that drives the clamping arm to swing. The clamping plate is mounted on the clamping arm. The suction side-clamping assembly includes a suction side-clamping base plate and a side-clamping suction cup mounted on the suction side-clamping base plate. It also includes a suction side-clamping support plate and a swing suction plate driver that drives the suction side-clamping support plate to rotate. The suction side-clamping support plate is connected to the suction side-clamping base plate, and the swing suction plate driver drives the side-clamping suction cup to swing. The bottom-clamping assembly includes a bottom-edge gripper and a paper-tearing driver that drives the bottom-edge gripper to move up and down. The bottom-edge gripper can open and close to clamp the bottom edge of the cardboard. The bottom-edge gripper is connected to the movable end of the paper-tearing driver, which drives the bottom-edge gripper to tear the bottom edge downwards.

Description

Technical Field

[0001] This utility model belongs to the field of cardboard processing, and specifically relates to a paper tearing device. Background Technology

[0002] Cardboard boxes are commonly used as wrapping materials for goods or as protective outer layers for items, and are widely used in logistics and storage. Existing cardboard boxes are made by folding double-layered cardboard produced by paper mills. The cardboard has four enclosing sides (front, back, left, and right) and top and bottom folds connected to these sides. The cardboard is typically first stretched or opened to form a square tube shape. Then, the four bottom folds are overlapped to form the bottom of the box, and the seams of the bottom are sealed with tape. The product is then placed inside the box. Finally, the four top folds are overlapped to form the top of the box, and the seams of the top are sealed with tape, resulting in a complete cardboard box containing the product.

[0003] However, mechanical grippers cannot reach into cardboard boxes, making it impossible to pack large quantities of goods into them at once. Pushing goods into the box using a side-push method is also susceptible to the shape of the goods themselves; if the goods are irregular, they are easily pushed over during stacking and cannot be pushed into the box all at once. Therefore, the aforementioned cardboard boxes with only a top opening have limitations when packing goods. The inventors proposed a cardboard box with both a top and side opening, thus providing more space for material loading. One way to create a cardboard box with both a top and side opening is to design the cardboard to have only three sides folded. However, this requires an additional side sealing plate when resealing the side opening, necessitating separate storage of the two sizes of cardboard, which increases warehousing pressure and requires improvement. Utility Model Content

[0004] This invention addresses the shortcomings of the prior art by providing a paper tearing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] A paper-tearing device includes a side-clamping plate assembly, a suction side-clamping plate assembly, and a bottom-clamping edge assembly. The side-clamping plate assembly and the suction side-clamping plate assembly can position and clamp a small piece of cardboard, while the bottom-clamping edge assembly clamps the bottom of the small piece of cardboard and can be lowered, thereby tearing the small piece of cardboard off a large piece of cardboard.

[0007] Furthermore, the side clamping plate assembly includes a clamping plate, a clamping swing arm, and a swing plate drive component that drives the clamping swing arm to swing, with the clamping plate mounted on the clamping swing arm.

[0008] Furthermore, the suction side plate assembly includes a suction side plate base plate and a side plate suction cup mounted on the suction side plate base plate, as well as a suction side plate support plate and a swing suction plate drive component for driving the suction side plate support plate to rotate, wherein the suction side plate support plate is connected to the suction side plate base plate, and the swing suction plate drive component drives the side plate suction cup to swing.

[0009] Furthermore, there are two sets of bottom edge clamping assemblies, both located between the side plate clamping assembly and the suction side plate assembly, and are spaced apart; the bottom edge clamping assembly includes bottom edge grippers and a paper-tearing drive component that drives the bottom edge grippers to move up and down. The bottom edge grippers can open and close to clamp the bottom edge of the small cardboard. The bottom edge grippers are connected to the movable end of the paper-tearing drive component, and the paper-tearing drive component will drive the bottom edge grippers to pull the bottom edge down and tear it open.

[0010] Furthermore, an auxiliary pressure plate is provided below the bottom plate of the suction side plate assembly, which can be flipped synchronously with the bottom plate of the suction side plate. The auxiliary pressure plate is on the same plane as the side plate suction cup.

[0011] Furthermore, the paper tearing device also includes a paper stop plate, which is mounted on the frame and located above the suction side plate assembly. The paper stop plate is sheet-shaped and arranged towards the clamping side plate assembly.

[0012] Compared with existing technologies, this invention uses a tearing device to tear small cardboard pieces from the original cardboard, leaving the remaining portion of the original cardboard as the larger cardboard. The small and large cardboard pieces correspond one-to-one, allowing for direct reassembly. This eliminates the need to store two different shapes of cardboard, simplifying the warehousing process. This invention separates the small cardboard pieces from the original cardboard by tearing, eliminating the need for additional paper cutting structures. The structure is simple and compact. The small cardboard pieces can be effectively torn off by pulling on both sides of the bottom edge using the bottom component.

[0013] This paper-tearing mechanism can also be used in other situations where it is necessary to separate cardboard or thin parts. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the paper-tearing device in an embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the paper-tearing device after the clamping side sealing assembly and the suction side sealing assembly are engaged and clamped together in this embodiment.

[0016] Figure 3 This is a diagram illustrating the effect of changes in the cardboard in an embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the paper stop sheet in an embodiment of this utility model.

[0018] In the diagram, 1 is the paper-tearing device; 11 is the side-clamping plate assembly; 111 is the paper clamping plate; 112 is the paper clamping swing arm; 113 is the swing clamping plate drive; 12 is the suction side plate assembly; 121 is the suction side plate bottom plate; 122 is the side plate suction cup; 123 is the suction side plate support plate; 124 is the swing suction plate drive; 13 is the bottom edge clamping assembly; 131 is the bottom edge gripper; 132 is the paper-tearing drive; 14 is the auxiliary pressure plate; 15 is the paper stop; 21 is the large paperboard; 22 is the small paperboard; and 23 is the ear. Detailed Implementation

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] like Figure 1-4 As shown, this embodiment provides a paper tearing device 1 including a side clamping plate assembly 11, a suction side plate assembly 12, and a bottom clamping edge assembly 13. The side clamping plate assembly 11 and the suction side plate assembly 12 can position and clamp the small cardboard 22, and the bottom clamping edge assembly 13 can clamp the bottom of the small cardboard 22 and descend, thereby tearing the small cardboard 22 off the large cardboard 21.

[0023] Specifically, the side plate clamping assembly 11 includes a clamping plate 111, a paper clamping swing arm 112, and a swing clamping plate driving member 113 that drives the paper clamping swing arm 112 to swing. The clamping plate 111 is mounted on the paper clamping swing arm 112. The suction side plate assembly 12 includes a suction side plate base plate 121 and a side plate suction cup 122 disposed on the suction side plate base plate 121. It also includes a suction side plate support plate 123 and a swing suction plate driving member 124 that drives the suction side plate support plate 123 to rotate. The suction side plate support plate 123 is connected to the suction side plate base plate 121, and the swing suction plate driving member 124 drives the side plate suction cup 122 to swing. When the swing clamping plate drive 113 and the swing suction plate drive 124 act simultaneously, the clamping cardboard 111 and the side plate suction cup 122 move towards or away from each other. When the clamping cardboard 111 and the side plate suction cup 122 move towards each other, the small cardboard 22 located therein can be positioned and clamped, but not tightly. When the clamping cardboard 111 and the side plate suction cup 122 move away from each other, the clamping cardboard 111 leaves a space to wait for the original cardboard 2 and the small cardboard 22 on it to arrive. The side plate suction cup 122 swings outward with the torn small cardboard 22, waiting to be picked up by the subsequent cardboard suction robot. There are two sets of bottom edge clamping assemblies 13, both located between the side plate clamping assembly 11 and the side plate suction assembly 12, and they are spaced apart. The bottom edge clamping assembly 13 includes a bottom edge gripper 131 and a paper-tearing drive 132 that drives the bottom edge gripper 131 to move up and down. The bottom edge gripper 131 can open and close to clamp the bottom edge of the small cardboard 22. The bottom edge gripper 131 is connected to the movable end of the paper-tearing drive 132. The paper-tearing drive 132 will drive the bottom edge gripper 131 to pull down and tear the bottom edge. The two sets of bottom edge clamping assemblies 13 can pull down at different intervals, tearing one side first and then the other side, which is more conducive to tearing the small cardboard 22 off as a whole.

[0024] Below the suction side plate bottom plate 121 of the suction side plate assembly 12, there is also an auxiliary pressure plate 14 that can be rotated synchronously with the suction side plate bottom plate 121. The auxiliary pressure plate 14 and the side plate suction cup 122 are on the same plane. The upper part of the small cardboard 22 is attracted by the side plate suction cup 122, and the lower part can contact the auxiliary pressure plate 14. When the small cardboard 22 is vertical, the auxiliary pressure plate 14 can help guide the bottom edge clamping assembly 13 to clamp the bottom edge of the small cardboard 22. When the small cardboard 22 is rotated, the auxiliary pressure plate 14 can provide auxiliary support for the small cardboard 22.

[0025] like Figure 3 As shown, the original cardboard 2 in this embodiment is composed of a large cardboard 21 and a small cardboard 22. There is an easy-tear point between the large cardboard 21 and the small cardboard 22. More specifically, the large cardboard 21 and the small cardboard 22 are also connected by an ear 23, wherein the ear 23 is integrally formed with the large cardboard 21 and there is an easy-tear point between the ear 23 and the small cardboard 22, thus reducing the connection length between the large cardboard 21 and the small cardboard 22.

[0026] When used in conjunction with this paper-tearing device, it also has a structure that sucks or grabs the large cardboard from above, which can transfer the original cardboard and the large cardboard.

[0027] The paper-tearing device 1 also includes a paper-stopping piece 15, which is mounted on the frame and located above the suction side plate assembly 12. The paper-stopping piece 15 is sheet-shaped and arranged towards the clamping side plate assembly 11. When the original cardboard is moved to the paper-tearing device, the small cardboard 22 is clamped and positioned, and the paper-stopping piece 15 is inserted on both sides of the ear 23. When the small cardboard 22 is pulled down, the large cardboard 21 connected to the small cardboard 22 abuts against the paper-stopping piece 15. The paper-stopping piece 15 provides upward support for the large cardboard 21, preventing the remaining structure of the large cardboard 21 from being pulled down and losing the suction or gripping effect of the paper-moving structure.

[0028] When this paper-tearing device is in operation, the original cardboard 2 is moved to the paper-tearing area, and the small cardboard 22 is vertically suspended below the original cardboard 2. The clamping cardboard 111 and the suction side plate 121 of the paper-tearing device 1 move towards each other to clamp and position the small cardboard 22. At the same time, the auxiliary pressing cardboard 14 presses against the outside of the small cardboard 22 to guide it vertically. The paper stop 15 is inserted on both sides of the ear 23 between the large cardboard 21 and the small cardboard 22. The bottom edge gripper 131 rises to clamp the edge of the small cardboard 22, and then the bottom edge gripper 131 descends, causing the small cardboard 22 to tear with the ear 23. Finally, the entire small cardboard 22 is torn off. The suction side plate 121 continues to suck up the small cardboard 22. The suction side plate 121 flips to the left, causing the small cardboard 22 to fall to the side and horizontal, waiting for the suction cardboard robot to take it away for recombining with the large cardboard 21. The large cardboard 21 is removed for other shape adjustments.

Claims

1. A paper-tearing device, characterized in that, The paper tearing device (1) includes a side plate clamping assembly (11), a side plate suction assembly (12), and a bottom edge clamping assembly (13). The side plate clamping assembly (11) and the side plate suction assembly (12) can position and clamp the small cardboard (22), and the bottom edge clamping assembly (13) clamps the bottom of the small cardboard (22) and can be lowered, thereby tearing the small cardboard (22) off the large cardboard (21).

2. The paper-tearing device as described in claim 1, characterized in that, The side plate assembly (11) includes a paper clamping plate (111), a paper clamping swing arm (112), and a swing plate drive (113) that drives the paper clamping swing arm (112) to swing. The paper clamping plate (111) is mounted on the paper clamping swing arm (112).

3. The paper-tearing device as described in claim 2, characterized in that, The suction side plate assembly (12) includes a suction side plate base plate (121) and a side plate suction cup (122) mounted on the suction side plate base plate (121). It also includes a suction side plate support plate (123) and a swing suction plate drive (124) that drives the suction side plate support plate (123) to rotate. The suction side plate support plate (123) is connected to the suction side plate base plate (121), and the swing suction plate drive (124) drives the side plate suction cup (122) to swing.

4. The paper tearing device as described in claim 3, characterized in that, Two sets of clamping bottom edge components (13) are provided, both located between clamping side plate components (11) and suction side plate components (12), and are spaced apart; the clamping bottom edge component (13) includes bottom edge grippers (131) and a paper-tearing drive component (132) that drives the bottom edge grippers (131) to move up and down. The bottom edge grippers (131) can open and close to clamp the bottom edge of the small cardboard (22). The bottom edge grippers (131) are connected to the movable end of the paper-tearing drive component (132). The paper-tearing drive component (132) will drive the bottom edge grippers (131) to pull the bottom edge down and tear it open.

5. The paper tearing device as described in claim 3, characterized in that, Below the suction side plate bottom plate (121) of the suction side plate assembly (12), there is also an auxiliary pressure plate (14) that can be flipped synchronously with the suction side plate bottom plate (121). The auxiliary pressure plate (14) and the side plate suction cup (122) are on the same plane.

6. The paper tearing device as claimed in claim 1, characterized in that, The paper tearing device (1) also includes a paper stop (15), which is mounted on the frame and located above the suction side plate assembly (12). The paper stop (15) is sheet-shaped and arranged in the direction of the clamping side plate assembly (11).

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