Automatic snapping device for paper film cutting

Abstract

The utility model relates to the field of paper processing, and discloses a paper film cutting automatic snapping device which comprises two fixing plates, the two fixing plates are both fixed to one side of a workbench, a pulling roller is rotationally arranged between the two fixing plates, a first motor is fixed to one side of the fixing plate on the front side, and a second motor is fixed to the other side of the fixing plate on the rear side. A base plate is fixed to the top face of the workbench, a plurality of supporting plates are fixed to the top face of the workbench, a pushing roller is rotationally arranged between each set of supporting plates, a second motor is fixed to one side of the supporting plate on the front side, and an output shaft of the second motor is rotationally inserted into the supporting plates and fixedly connected with one end of the pushing roller. According to the utility model, as the surfaces of the pulling roller, the pushing roller and the winding roller which are in contact with the paper are smoother, and the paper is snapped by continuous transverse acting force, the paper is not in other unnecessary contact, and the integrity of the paper after being snapped is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of paper processing, specifically to an automatic paper cutting and tearing device. Background Technology

[0002] The automatic paper cutting and tearing device is an advanced mechanical device used to achieve efficient and precise cutting and tearing operations during paper processing. Through an automated control system, this device can automatically adjust the cutting force and position according to preset parameters, ensuring that the length and quality of each piece of paper meets standards.

[0003] According to Chinese Patent No. CN204977745U, a tear-off device for coated paper is disclosed. The device includes a front- and rear-separated pressure tooth drive shaft and pulley shaft spanning between the left and right wall plates of a coating equipment and between the paper output roller and the traction roller. A drive belt is fitted on the right side of the pressure tooth drive shaft and the pulley shaft. A tear-off upper guard plate is installed above the drive belt. The tear-off upper guard plate has a rectangular hole extending in the left and right direction and is equipped with a toothed knife assembly including pressure tooth blades that is adjustable in the left and right position. The lower part of the pressure tooth blade passes through the rectangular hole and corresponds to the pressure tooth drive shaft.

[0004] In the above solution, a toothed blade assembly is used to press a small slit on the edge of the paper. However, this solution still has the following drawbacks: the toothed blade assembly is installed on the tear-off guard plate. During the tearing process, the toothed blade assembly may scratch the torn paper due to contact with the paper, which reduces the safety of the paper when it is torn. Utility Model Content

[0005] The purpose of this invention is to provide an automatic paper cutting and tearing device to solve the problem that the paper may be scratched by the toothed blade assembly during the tearing process, which reduces the safety of the paper when it is torn.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: an automatic paper cutting and tearing device, comprising two fixed plates, both fixed plates being fixed to one side of a worktable, a pulling roller being rotatably arranged between the two fixed plates, a first motor being fixed to one side of the front fixed plate, the output shaft of the first motor passing through the fixed plate and fixed to one end of the pulling roller, a pad being fixed to the top surface of the worktable, and several support plates being fixed to the top surface of the worktable, wherein two support plates form a group, a pushing roller being rotatably arranged between each group of support plates, a second motor being fixed to one side of the front support plate, the output shaft of the second motor being rotatably inserted into the support plate and fixedly connected to one end of the pushing roller, and a winding roller being rotatably arranged between the two fixed plates.

[0007] Preferably, limiting arc plates are fixed on both sides of the two fixed plates that are close to each other, and positioning arc plates are fixed on both sides of the two fixed plates that are close to each other. The limiting arc plates are positioned above the surface of the winding roller and have a gap in the middle for paper to pass through. The positioning arc plates are positioned above the surface of the pulling roller and have a gap in the middle for paper to pass through.

[0008] Preferably, the top surface of the worktable is fixed with two fixing rods, and the top end of the fixing rods is fixed with a guide arc plate. The guide arc plate is positioned above the surface of the push roller and has a gap in the middle for the paper to pass through.

[0009] Preferably, a number of cylinders are fixed on the top surface of the workbench, and a lifting plate is slidably arranged above the workbench. The four corners of the bottom surface of the lifting plate are respectively fixed to the top of the telescopic rods of the cylinders.

[0010] Preferably, an installation plate is provided below the lifting plate, and a plurality of film cutting knives are fixed on the bottom surface of the installation plate. A plurality of connecting rods are fixedly connected between the lifting plate and the installation plate.

[0011] Preferably, support columns are fixed at the four corners of the bottom surface of the workbench, and anti-slip pads are fixed at the bottom of the support columns.

[0012] Compared with existing technologies, the automatic paper cutting and tearing device that adopts the above technical solution has the following beneficial effects:

[0013] 1. The push roller on the right side, driven by the output shaft of the second motor, moves the paper laterally above the worktable. At this time, the bottom surface of the paper is in contact with the top surface of the pad. Then, the paper is pushed into the surface of the winding roller by the push roller on the left side. The paper is then in contact with the surface of the pulling roller by the winding roller. The pulling roller is driven by the output shaft of the first motor to rotate synchronously, thus applying the same force to the paper again. When the second motor stops working, the push roller also stops rotating. At this time, the paper will stop being fed. Then, the rotation of the pulling roller will continue to apply the same force to the paper, thus achieving the tearing of the paper. Since the surfaces of the pulling roller, push roller and winding roller that are in contact with the paper are relatively smooth, and the tearing of the paper is carried out by a continuous lateral force, there is no other unnecessary contact with the paper, which increases the integrity of the paper after tearing.

[0014] 2. After the paper is torn, one end of the paper is between the pad and the guide arc plate. Then, under the push of the right push roller, the paper will move to the surface of the left push roller. Then, under the push of the left push roller, the paper will be pushed between the winding roller and the limiting arc plate. As the paper continues to move, the paper will move between the pulling roller and the positioning arc plate, and then the next section of paper can be torn. The guide arc plate, the limiting arc plate and the positioning arc plate limit the paper and guide the transport direction, which increases the continuity of the paper during transport and tearing.

[0015] Third, before the paper is pulled apart, the cylinder's telescopic rod will retract downwards, causing the lifting plate to move downwards. The downward movement of the lifting plate will cause the mounting plate and the cutting blade to move downwards simultaneously, thereby causing the cutting blade to press against the top surface of the paper. The cutting blade will cut the paper and leave an indentation line, which will help increase the flatness of the end when the paper is pulled apart. Attached Figure Description

[0016] Figure 1 This is a perspective view of an embodiment.

[0017] Figure 2 This is an exploded perspective view of an embodiment.

[0018] Figure 3 This is a perspective view of the lifting plate and the mounting plate in the embodiment.

[0019] Figure 4 This is a perspective view of the fixing plate and the positioning arc plate in the embodiment.

[0020] In the diagram: 1. Workbench; 2. Fixed plate; 3. Pulling roller; 4. First motor; 5. Pad plate; 6. Support plate; 7. Pushing roller; 8. Second motor; 9. Winding roller; 10. Cylinder; 11. Lifting plate; 12. Mounting plate; 13. Connecting rod; 14. Film cutting knife; 15. Fixed rod; 16. Guide arc plate; 17. Limiting arc plate; 18. Positioning arc plate; 19. Support column; 20. Anti-slip mat. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figure 1 , Figure 2 and Figure 4As shown, an automatic paper cutting and tearing device includes two fixed plates 2, both fixed to one side of a workbench 1. A pulling roller 3 is rotatably arranged between the two fixed plates 2. A first motor 4 is fixed to one side of the front fixed plate 2. The output shaft of the first motor 4 passes through the fixed plate 2 and is fixed to one end of the pulling roller 3. A pad 5 is fixed to the top surface of the workbench 1. Several support plates 6 are fixed to the top surface of the workbench 1, with two support plates 6 forming a group. A pushing roller 7 is rotatably arranged between each group of support plates 6. A second motor 8 is fixed to one side of the front support plate 6. The output shaft of the second motor 8 is rotatably inserted into the support plate 6 and fixedly connected to one end of the pushing roller 7. A winding roller 9 is rotatably arranged between the two fixed plates 2. Support columns 19 are fixed at the four corners of the bottom surface of the workbench 1, and anti-slip pads 20 are fixed to the bottom ends of the support columns 19.

[0023] During use, the right-side push roller 7, driven by the output shaft of the second motor 8, moves the paper laterally above the worktable 1. At this time, the bottom surface of the paper is in contact with the top surface of the pad 5. Then, the paper is pushed into the surface of the winding roller 9 by the left-side push roller 7. The paper is then in contact with the surface of the pulling roller 3 by the winding roller 9. The pulling roller 3 is driven to rotate synchronously by the output shaft of the first motor 4, thus applying the same force to the paper again. When the second motor 8 stops working, the push roller 7 also stops rotating, and the paper stops being fed. The rotation of the pulling roller 3 continues to apply the same force to the paper, thus achieving the tearing of the paper. Since the surfaces of the pulling roller 3, push roller 7, and winding roller 9 that are in contact with the paper are all relatively smooth, and the tearing of the paper is carried out by a continuous lateral force, there is no other unnecessary contact with the paper, which increases the integrity of the paper after tearing.

[0024] like Figure 2 and Figure 4 As shown, two fixed plates 2 are fixed with limiting arc plates 17 on their sides that are close to each other, and two fixed plates 2 are fixed with positioning arc plates 18 on their sides that are close to each other. The limiting arc plates 17 are set above the surface of the winding roller 9 and have a gap in the middle for paper to pass through. The positioning arc plates 18 are set above the surface of the pulling roller 3 and have a gap in the middle for paper to pass through. Two fixed rods 15 are fixed on the top surface of the worktable 1. A guide arc plate 16 is fixed at the top of the fixed rods 15. The guide arc plate 16 is set above the surface of the pushing roller 7 and has a gap in the middle for paper to pass through.

[0025] In use, after the paper is torn, one end of the paper is between the pad 5 and the guide arc plate 16. Then, under the push of the right push roller 7, the paper will move to the surface of the left push roller 7. Then, under the push of the left push roller 7, the paper will be pushed between the winding roller 9 and the limiting arc plate 17. As the paper continues to move, the paper will move between the pulling roller 3 and the positioning arc plate 18, and then the next section of paper can be torn. By using the guide arc plate 16, the limiting arc plate 17 and the positioning arc plate 18 to limit the paper and guide the transport direction, the continuity of the paper during transport and tearing is increased.

[0026] like Figure 2 and Figure 3 As shown, a number of cylinders 10 are fixed on the top surface of the workbench 1, and a lifting plate 11 is slidably arranged above the workbench 1. The four corners of the bottom surface of the lifting plate 11 are fixed to the top of the telescopic rods of the cylinders 10 respectively. A mounting plate 12 is arranged below the lifting plate 11, and a number of film cutting knives 14 are fixed on the bottom surface of the mounting plate 12. A number of connecting rods 13 are fixedly connected between the lifting plate 11 and the mounting plate 12.

[0027] During use, before the paper is pulled apart, the telescopic rod of the cylinder 10 will retract downwards, causing the lifting plate 11 to move downwards. The downward movement of the lifting plate 11 will cause the mounting plate 12 and the cutting blade 14 to move downwards simultaneously, thereby causing the cutting blade 14 to press against the top surface of the paper. The cutting blade 14 is used to cut the paper and leave an indentation line, which makes it easier to increase the flatness of the end when the paper is pulled apart.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic paper cutting and tearing device, comprising two fixing plates (2), both fixing plates (2) being fixed to one side of a workbench (1), characterized in that, A pulling roller (3) is rotatably arranged between the two fixed plates (2). A first motor (4) is fixed on one side of the front fixed plate (2). The output shaft of the first motor (4) passes through the fixed plate (2) and is fixed to one end of the pulling roller (3). A pad (5) is fixed on the top surface of the worktable (1). Several support plates (6) are fixed on the top surface of the worktable (1). Two support plates (6) form a group. A pushing roller (7) is rotatably arranged between each group of support plates (6). A second motor (8) is fixed on one side of the front support plate (6). The output shaft of the second motor (8) is rotatably inserted into the support plate (6) and fixedly connected to one end of the pushing roller (7). A winding roller (9) is rotatably arranged between the two fixed plates (2).

2. The automatic paper cutting and tearing device according to claim 1, characterized in that: Limiting arc plates (17) are fixed on both sides of the two fixed plates (2) that are close to each other, and positioning arc plates (18) are fixed on both sides of the two fixed plates (2) that are close to each other. The limiting arc plates (17) are set above the surface of the winding roller (9) and there is a gap in the middle for the paper to pass through. The positioning arc plates (18) are set above the surface of the pulling roller (3) and there is a gap in the middle for the paper to pass through.

3. The automatic paper cutting and tearing device according to claim 1, characterized in that: The top surface of the workbench (1) is fixed with two fixing rods (15), and the top of the fixing rods (15) is fixed with a guide arc plate (16). The guide arc plate (16) is set above the surface of the push roller (7) and there is a gap in the middle for the paper to pass through.

4. The automatic paper cutting and tearing device according to claim 1, characterized in that: The top surface of the workbench (1) is fixed with several cylinders (10), and a lifting plate (11) is slidably arranged above the workbench (1). The four corners of the bottom surface of the lifting plate (11) are respectively fixed to the top of the telescopic rods of several cylinders (10).

5. The automatic paper cutting and tearing device according to claim 4, characterized in that: A mounting plate (12) is provided below the lifting plate (11), and a number of film cutting knives (14) are fixed on the bottom surface of the mounting plate (12). A number of connecting rods (13) are fixedly connected between the lifting plate (11) and the mounting plate (12).

6. The automatic paper cutting and tearing device according to claim 1, characterized in that: Support columns (19) are fixed at the four corners of the bottom surface of the workbench (1), and anti-slip pads (20) are fixed at the bottom of the support columns (19).

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