Paper snapping mechanism

Abstract

A paper snapping mechanism comprises a traction roller set and a snapping roller set, the traction roller set comprises a traction frame, a lower traction roller and an upper traction roller are installed in the traction frame, the traction roller set and the snapping roller set form a certain angle in the horizontal direction, and the linear speed of rotation of the snapping roller set is larger than that of the traction roller set. An anti-sticking assembly and a pressing assembly are fixedly installed on the rear side of the snapping roller set. According to the paper snapping mechanism, the pressure needed for snapping the paper is smaller, then the separated paper is not prone to adhering to the snapping upper roller, the quality problem is caused, in addition, through the arranged anti-adhesion assembly and the downward pressing assembly, the situation that the separated paper adheres to the snapping upper roller and rotates along with the snapping upper roller can be avoided, and the paper snapping efficiency is improved. And meanwhile, the downward pressing assembly can enable the separated paper to be stacked together in sequence and not to be dispersed, and the production efficiency and quality are guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of separation devices, and in particular relates to a paper breaking mechanism. Background Technology

[0002] In existing technologies, paper is generally cut and separated directly by a cutter. However, some types of paper, such as playing cards and cards, require the printed paper to be scored first using a scoring blade. The scoring blade scores the paper in one direction, causing the paper to connect together in that direction through spaced, dotted-line connection points. This ensures that the materials are connected together without falling apart, while also ensuring that they can be easily separated. Then, the cutter cuts the paper along the direction perpendicular to the scoring lines, cutting the paper into strips. These strips are then stacked together, and a pull-off roller pulls the strips apart along the scoring lines. However, because multiple layers of paper are stacked together for pulling and separating, the pressure of the roller on the paper is relatively high. After the paper is separated, it is easy for it to stick to the roller and rotate together, causing paper quality problems or even paper shortages. In addition, after the strips of paper are separated by the pulling-off mechanism, the paper needs to be stacked together at once before being conveyed backward. However, after the separated paper leaves the pull-off roller, it is easy for it to scatter, affecting the stacking and forward conveying of the paper. Utility Model Content

[0003] The purpose of this utility model is to provide a paper breaking mechanism to solve the technical problems of how to make the paper easily detach from the breaking roller after being broken and how to make the separated paper stacked together in sequence without easily falling apart.

[0004] To achieve the above objectives, the specific technical solution of the paper-tearing mechanism of this utility model is as follows:

[0005] A paper breaking mechanism includes a traction roller assembly and a breaking roller assembly. The traction roller assembly includes a traction frame, within which a lower traction roller and an upper traction roller are respectively installed. Both ends of the lower traction roller are rotatably connected to the side plates of the traction frame via bearings. Simultaneously, one end of the upper traction roller extends to the outside of the side plate of the traction frame and is fixedly connected to a traction sprocket. The upper traction roller is correspondingly installed above the lower traction roller. Both ends of the upper traction roller are slidably connected to the side plates of the traction frame via adjusting components. The breaking roller assembly includes a breaking frame, and the breaking roller... A lower break roller is rotatably mounted inside the frame. The two ends of the lower break roller are rotatably connected to the side plate of the break frame via bearings. A higher break roller is mounted above the lower break roller. The two ends of the higher break roller are slidably connected to the side plate of the break frame via adjusting components. Similarly, one end of the lower and upper break rollers extends to the outside of the side plate of the break frame and is fixedly connected to a break sprocket. The drive device is connected to the traction sprocket and the break sprocket via a chain. The linear speed of the break roller assembly is greater than that of the traction roller assembly. An anti-sticking component and a pressing component are fixedly mounted on the rear side of the break roller assembly.

[0006] Furthermore, the adjustment assembly includes a slider, with the two ends of the traction upper roller and the break-off upper roller respectively rotatably connected to the slider via bearings. At the same time, the slider is slidably connected to the side plates of the traction frame and the break-off frame. A connecting plate is fixedly connected to the upper side of the slider, and a screw is rotatably connected to the connecting plate. The screw extends upward through the top plate of the traction frame and the break-off frame to the upper part of the top plate. A nut is fixedly connected to the upper part of the top plate, and the screw is threadedly connected to the nut.

[0007] Furthermore, the anti-sticking component includes a fixed connecting block and a sliding rod. The fixed connecting block is bent, with one side fixedly connected to the top plate of the break frame, and the other side located at the rear of the break frame. A sliding rod is also installed on the fixed connecting block, with a fixed groove and a sliding groove respectively provided on the sliding rod. A bolt hole is provided on the fixed connecting block corresponding to the fixed groove. A bolt passes through the fixed groove and connects to the corresponding bolt hole, so that the sliding rod is connected to the fixed connecting block. In addition, a limit block is provided at the position of the fixed connecting block corresponding to the sliding groove. The limit block is located in the sliding groove. The bottom of the sliding rod is wedge-shaped and faces the break upper roller. The wedge-shaped tip of the bottom of the sliding rod contacts the break upper roller.

[0008] Furthermore, the pressing assembly includes a connecting rod with a connecting groove. The connecting rod is fixedly connected to the side of the top plate of the break-off frame by bolts passing through the connecting groove. A brush is fixedly connected to the lower part of the connecting rod. The lower part of the brush is inclined, and the length of the brush on the side closer to the break-off roller group is shorter than the length of the brush on the side of the original break-off roller group.

[0009] Furthermore, the traction roller group and the breakage roller group are set separately, and the traction roller group and the breakage roller group are at a certain angle in the horizontal direction; the angle between the traction roller group and the breakage roller group in the horizontal direction is 0-30 degrees.

[0010] The paper breaking mechanism of this utility model has the following advantages: The paper breaking mechanism of this application, through the anti-sticking component and the pressing component provided on the rear side of the breaking roller group, can prevent the paper after breaking from sticking and being carried away by the breaking upper roller. Even if the paper sticks to the breaking upper roller, the anti-sticking component will separate the paper from the breaking upper roller. In addition, the design of the pressing component allows the separated papers to be stacked sequentially, and the brush provides a certain downward pressure on the stacked papers, making the stacked papers less likely to disperse and not causing damage to the paper. Furthermore, the traction roller group and the breaking roller group in this application are inclined in the horizontal direction, which makes the pulling force required for the paper breaking mechanism to break the paper smaller. Therefore, the pressure of the breaking upper roller on the paper is also correspondingly smaller. The smaller pressure makes it less likely for the separated paper to stick to the breaking upper roller, further ensuring the paper separation effect and paper quality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the paper-breaking mechanism of this utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the breakage roller assembly, anti-sticking component, and pressing component of this utility model;

[0013] Figure 3 for Figure 2 A cross-sectional schematic diagram;

[0014] Figure 4 This is a schematic diagram of the structure of the anti-stick component of this utility model;

[0015] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the paper-breaking mechanism of this utility model;

[0016] Figure 6 This is a schematic diagram of another angle of Embodiment 2 of the paper-breaking mechanism of this utility model;

[0017] Figure 7 This is a top view of Embodiment 2 of the paper-tearing mechanism of this utility model;

[0018] The markings in the diagram are as follows: 1. Traction roller assembly; 11. Traction frame; 12. Lower traction roller; 13. Upper traction roller; 14. Traction sprocket; 2. Break-off roller assembly; 21. Break-off frame; 22. Lower break-off roller; 23. Upper break-off roller; 24. Break-off sprocket; 3. Adjustment assembly; 31. Slider; 32. Connecting plate; 33. Screw; 34. Nut; 35. Handle; 4. Guide plate; 5. Anti-stick assembly; 51. Fixed connecting block; 511. Limiting block; 52. Sliding rod; 521. Fixed groove; 522. Sliding groove; 6. Pressing assembly; 61. Connecting rod; 611. Connecting groove; 62. Brush. Detailed Implementation

[0019] To better understand the purpose, structure, and function of this utility model, a paper-tearing mechanism of this utility model will be described in further detail below with reference to the accompanying drawings.

[0020] Example 1

[0021] like Figure 1-4 As shown, this utility model discloses a paper breaking mechanism, comprising a traction roller group 1 and a breaking roller group 2. The traction roller group 1 includes a traction frame 11, within which a lower traction roller 12 and an upper traction roller 13 are respectively installed. Both ends of the lower traction roller 12 are rotatably connected to the side plates of the traction frame 11 via bearings. Simultaneously, one end of the upper traction roller 13 extends to the outside of the side plate of the traction frame 11 and is fixedly connected to a traction sprocket 14. The upper traction roller 13 is correspondingly installed above the lower traction roller 12. Both ends of the upper traction roller 13 are slidably connected to the side plates of the traction frame 11 via adjusting components 3. The breaking roller group 2 includes a breaking frame 21, within which a lower breaking roller 22 is rotatably installed. The two ends of the lower break roller 22 are rotatably connected to the side plate of the break frame 21 via bearings. The upper break roller 23 is installed above the lower break roller 22. The two ends of the upper break roller 23 are slidably connected to the side plate of the break frame 21 via the adjusting assembly 3. Similarly, one end of the lower break roller 22 and the upper break roller 23 extends to the outside of the side plate of the break frame 21 and is fixedly connected to the break sprocket 24. The drive device is connected to the traction sprocket 14 and the break sprocket 24 via a chain, so that the traction roller group 1 and the break roller group 2 rotate. The linear speed of the break roller group 2 is greater than that of the traction roller group 1. The paper is fed by the traction roller group 1 and the paper break roller group 2. Because the linear speed of the break roller group 2 is greater than that of the traction roller group 1, a pulling force is generated on the paper, so that the paper is pulled apart along the score line.

[0022] The adjustment assembly 3 includes a slider 31. The two ends of the traction upper roller 13 and the break-off upper roller 23 are rotatably connected to the slider 31 through bearings. At the same time, the slider 31 is slidably connected to the side plates of the traction frame 11 and the break-off frame 21. The slider 31 can slide up and down along the side plates. A connecting plate 32 is fixedly connected to the upper side of the slider 31. A screw 33 is rotatably connected to the connecting plate 32. The screw 33 extends upward through the top plate of the traction frame 11 and the break-off frame 21 to the upper part of the top plate. A nut 34 is fixedly connected to the upper part of the top plate. The screw 33 is threadedly connected to the nut 34. The rotation of the screw 33 will cause the screw 33 to move up and down relative to the nut 34, thereby driving the connecting block and the slider 31 to move synchronously. This realizes the adjustment of the position of the traction upper roller 13 and the break-off upper roller 23. In order to facilitate the adjustment of the position of the traction upper roller 13 and the break-off upper roller 23, a handle 35 is fixedly installed on the top of the screw 33.

[0023] In addition, an anti-sticking component 5 and a pressing component 6 are fixedly installed on the rear side of the break-off roller group 2. The anti-sticking component 5 includes a fixed connecting block 51 and a sliding rod 52. The fixed connecting block 51 is bent. One side of the fixed connecting block 51 is fixedly connected to the top plate of the break-off frame 21, while the other side of the fixed connecting block 51 is located on the rear side of the break-off frame 21. A sliding rod 52 is also installed on the fixed connecting block 51. The sliding rod 52 is provided with a fixing groove 521 and a sliding groove 522. A bolt hole is provided on the fixed connecting block 51 corresponding to the fixing groove 521. A bolt can be passed through the fixing groove 521 and connected to the corresponding bolt hole, so that the sliding rod 52 is connected to the fixed connecting block 51. In addition, at the position of the fixed connecting block 51 corresponding to the sliding groove 522... A limiting block 511 is provided, which is located in the sliding groove 522. Loosening the bolt allows the sliding rod 52 to move up and down along the limiting block 511 to adjust its position. After adjusting the position, the sliding rod 52 is fixedly connected to the fixed connecting block 51 by tightening the fastening bolt. The bottom of the sliding rod 52 is wedge-shaped and faces the upper pull-off roller 23. The wedge-shaped tip of the bottom of the sliding rod 52 contacts the upper pull-off roller 23. When the upper pull-off roller 23 sticks to the paper, the wedge-shaped bottom of the sliding rod 52 can separate the paper from the upper pull-off roller 23, thereby preventing the separated paper from sticking to the upper pull-off roller 23 and causing paper quality problems. When the upper pull-off roller 23 is adjusted, the corresponding sliding rod 52 is also adjusted accordingly.

[0024] In addition, pressing components 6 are provided on both sides of the anti-sticking component 5. The pressing component 6 includes a connecting rod 61 with a connecting groove 611. The connecting rod 61 is fixedly connected to the side of the top plate of the tension frame 21 by bolts passing through the connecting groove 611. A brush 62 is fixedly connected to the lower part of the connecting rod 61. The separated paper moves downward under the action of the brush 62, and the brush 62 can provide a certain downward pressure on the paper without damaging it. Under the action of the brush 62, the separated paper is stacked up one after another. After the separated paper is stacked up, it is conveyed to continue to... The brush 62 is then conveyed for edge grinding and packaging. Furthermore, the lower part of the brush 62 is inclined, with the brush 62 closer to the break-off roller group 2 being shorter than the brush 62 on the original break-off roller group 2 side. This inclined bottom of the brush 62 better conforms to the paper's movement trajectory, allowing the paper to be better stacked without scattering. Additionally, the position of the brush 62 can be adjusted via the fixing groove 521 on the connecting rod 61. That is, by loosening the bolt, the fixing groove 521 of the connecting rod 61 can slide up and down relative to the bolt rod, thereby adjusting the position. Therefore, the position of the brush 62 can be adjusted according to actual needs.

[0025] The drive device of this application drives the traction sprocket 14 and the breakaway sprocket 24 to rotate via a chain, thereby achieving synchronous rotation of the traction upper roller 13 and the traction lower roller 12 towards each other, and synchronous rotation of the breakaway upper roller 23 and the breakaway lower roller 22 towards each other. The linear velocity of the breakaway upper roller 23 and the breakaway lower roller 22 of the breakaway roller group 2 of this invention is greater than the linear velocity of the traction upper roller 13 and the traction lower roller 12 of the traction roller group 1. The linear velocity difference can be achieved by having the same roller diameter but different sprocket sizes, or by having the same sprocket size but different roller diameters. In this embodiment, the traction roller group 1 and the breakaway roller group 2 have the same roller diameter, and the linear velocity difference between the traction roller group 1 and the breakaway roller group 2 is achieved by using traction sprockets 14 and the breakaway sprocket 24 of different sizes. The diameter of the traction sprocket 14 is larger than the diameter of the breakaway sprocket 24. Furthermore, for easier transmission, the traction lower roller 13 and the breakaway roller 24 are rotated in opposite directions. The traction sprocket 14 connected to the traction roller 22 and the breakaway sprocket 24 connected to the breakaway roller 22 are located on the same side, while the traction sprocket 14 connected to the traction roller 13 and the breakaway sprocket 24 connected to the breakaway roller 23 are located on the other side. The traction sprocket 14 and the breakaway sprocket 24 on the same side are connected by the same chain drive. Using the chain drive can better adapt to the position adjustment of the traction roller group 1 and the breakaway roller group 2. In this embodiment, the traction roller 12 and the breakaway roller 22 are installed in the same position on the same horizontal plane, and the upper surface of the traction roller 12 and the breakaway roller 22 is consistent with the surface of the material conveying channel. In addition, in order to facilitate the smooth entry of the material to be separated from the conveying channel into the middle of the traction roller group 1, a guide plate 4 is fixedly installed on the front side of the traction frame 11 of the traction roller group 1. The guide plate 4 can guide and support the movable material.

[0026] Example 2

[0027] The difference between this embodiment and embodiment 1 is that the traction roller group 1 and the breakage roller group 2 in this embodiment are at a certain angle in the horizontal direction. The rest is the same as in embodiment 1, and will not be described in detail.

[0028] like Figure 4-7 As shown in the figure, in this embodiment, the traction roller group 1 and the break-off roller group 2 are at a certain angle in the horizontal direction. The size of this angle can be adjusted, and the angle ranges from 0 to 30 degrees. To facilitate the angle adjustment of the traction roller group 1 and the break-off roller group 2, the traction roller group 1 and the break-off roller group 2 are set separately. In this way, the break-off roller group 2 can rotate relative to the traction roller group 1 on the horizontal plane to achieve angle adjustment. The attached figure shows the case where the traction roller group 1 and the break-off roller group 2 are set separately. The separate setting of the traction roller group 1 and the break-off roller group 2 makes it more convenient to adjust the position and angle of the traction roller group 1 and the break-off roller group 2. At the same time, the distance between the traction roller group 1 and the break-off roller group 2 can also be adjusted, making it more flexible, convenient, and adaptable. Furthermore, the separate traction roller group 1 and tear-off roller group 2, when the paper is between the traction roller group 1 and the tear-off roller group 2, have a greater linear velocity of the upper tear-off roller 23 and lower tear-off roller 22 than that of the upper traction roller 13 and lower traction roller 12 of the traction roller group 1. Also, the tear-off roller group 2 is inclined relative to the traction roller group 1, generating an oblique pulling force on the material. This causes the material to tear along one end of the score line when the score line moves between the traction roller group 1 and the tear-off roller group 2. Compared to directly tearing the paper, this requires less pulling force, and the pressure of the upper tear-off roller 23 on the paper is also less, making it less likely for the paper to stick to the upper tear-off roller 23, thus affecting the paper quality.

[0029] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A paper-tearing mechanism, characterized in that, The assembly includes a traction roller group (1) and a break-off roller group (2). The traction roller group (1) includes a traction frame (11), in which a lower traction roller (12) and an upper traction roller (13) are respectively installed. The two ends of the lower traction roller (12) are rotatably connected to the side plate of the traction frame (11) through bearings. At the same time, one end of the upper traction roller (13) extends to the outside of the side plate of the traction frame (11) and is fixedly connected to a traction sprocket (14). The upper traction roller (13) is installed above the lower traction roller (12). The two ends of the upper traction roller (13) are slidably connected to the side plate of the traction frame (11) through an adjusting assembly (3). One end of the upper traction roller (13) extends to the outside of the side plate of the traction frame (11) and is fixedly connected to a traction sprocket (14). The break-off roller group (2) includes a break-off frame (21). A lower break roller (22) is rotatably installed inside the frame (21). The two ends of the lower break roller (22) are rotatably connected to the side plate of the break frame (21) through bearings. A higher break roller (23) is installed above the lower break roller (22). The two ends of the higher break roller (23) are slidably connected to the side plate of the break frame (21) through the adjusting assembly (3). Similarly, one end of the lower break roller (22) and the higher break roller (23) extends to the outside of the side plate of the break frame (21) and is fixedly connected to a break sprocket (24). The drive device is connected to the traction sprocket (14) and the break sprocket (24) through a chain. The linear speed of the break roller group (2) is greater than the linear speed of the traction roller group (1). An anti-sticking assembly (5) and a pressing assembly (6) are fixedly installed on the rear side of the break roller group (2).

2. The paper-tearing mechanism according to claim 1, characterized in that, The adjustment assembly (3) includes a slider (31). The two ends of the traction upper roller (13) and the break-off upper roller (23) are rotatably connected to the slider (31) through bearings. At the same time, the slider (31) is slidably connected to the side plates of the traction frame (11) and the break-off frame (21). A connecting plate (32) is fixedly connected to the upper side of the slider (31). A screw (33) is rotatably connected to the connecting plate (32). The screw (33) extends upward through the top plate of the traction frame (11) and the break-off frame (21) to the upper part of the top plate. A nut (34) is fixedly connected to the upper part of the top plate. The screw (33) and the nut (34) are threadedly connected.

3. The paper-tearing mechanism according to claim 2, characterized in that, The anti-stick component (5) includes a fixed connecting block (51) and a sliding rod (52). The fixed connecting block (51) is bent. One side of the fixed connecting block (51) is fixedly connected to the top plate of the break frame (21), while the other side of the fixed connecting block (51) is located on the rear side of the break frame (21). A sliding rod (52) is also installed on the fixed connecting block (51). The sliding rod (52) is provided with a fixing groove (521) and a sliding groove (522). The fixing groove (521) is fixed in the fixing groove (521). The connecting block (51) is provided with bolt holes. The bolts pass through the fixing groove (521) and are connected to the corresponding bolt holes, so that the sliding rod (52) is connected to the fixed connecting block (51). In addition, a limit block (511) is provided at the position of the fixed connecting block (51) corresponding to the sliding groove (522). The limit block (511) is located in the sliding groove (522). The bottom of the sliding rod (52) is wedge-shaped and faces the upper pull-off roller (23). The wedge-shaped tip of the bottom of the sliding rod (52) contacts the upper pull-off roller (23).

4. The paper-tearing mechanism according to claim 3, characterized in that, The anti-stick component (5) is also provided with a pressing component (6) on both sides. The pressing component (6) includes a connecting rod (61), and a connecting groove (611) is provided on the connecting rod (61). The connecting rod (61) is fixedly connected to the side of the top plate of the tension frame (21) by bolts passing through the connecting groove (611). A brush (62) is fixedly connected to the lower part of the connecting rod (61).

5. A paper-tearing mechanism according to claim 4, characterized in that, The lower part of the brush (62) is inclined, and the length of the brush (62) on the side closer to the break-off roller group (2) is shorter than the length of the brush (62) on the side of the original break-off roller group (2).

6. A paper-tearing mechanism according to claim 3, characterized in that, A handle (35) is fixedly installed on the top of the screw (33).

7. A paper-tearing mechanism according to claim 1, characterized in that, The traction roller group (1) and the breakage roller group (2) are set separately, and the traction roller group (1) and the breakage roller group (2) are at a certain angle in the horizontal direction.

8. A paper-tearing mechanism according to claim 7, characterized in that, The traction roller group (1) and the breakage roller group (2) are at an angle of 0-30 degrees in the horizontal direction.

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