Edge cutting device for household paper production

Abstract

The utility model discloses an edge cutting device for household paper production, which comprises a working table, a support frame is fixed on the top of the working table, a support plate is fixed on the support frame, an air cylinder is mounted on the support plate, a power output shaft of the air cylinder movably penetrates through the support plate and is fixedly provided with a movable plate, and the movable plate is provided with an edge cutting device. The bottom of the movable plate is slidably connected with two adjusting plates driven by a servo motor. A detachable cutting blade driven by an electric push rod is arranged on one side of each adjusting plate, the edge of a paper product can make contact with the cutting edge of the cutting blade to cut the uneven edge of the paper product, the edge of the paper product is directly cut off through pulling force generated by rolling, the cutting-off position is relatively static, and the cutting-off effect is good. And the problem that fluff generated by rotary cutting is raised due to rotary force formed by cutting of the rotary blade can be solved, and therefore the influence on workers or the environment is reduced.

Description

An edge trimming device for the production of household paper Technical Field

[0001] This utility model relates to the field of household paper production technology, specifically to a trimming device for household paper production. Background Technology

[0002] Household paper products, such as facial tissues and soft cotton paper, require edge trimming during the production process to ensure that the paper edges are flat and aesthetically pleasing. This process necessitates the use of edge trimming devices.

[0003] As mentioned in the Chinese patent application CN202320393508.7, an automatic cutting and trimming device for tissue paper production, it includes: "A cutting support plate, a transmission support plate, a winding support plate, and a third motor output shaft fixedly connected to a second threaded rod. Moving plates are threaded onto the outer sides of both the second thread and the second reverse thread. A cutting blade is fixedly connected to the output shaft of the cutting motor. A blower is located at the bottom of the top plate, and an air pipe is fixedly connected to the back of the blower. The air pipe and the paper edge collection pipe are fixedly connected. The third motor is started to move the two moving plates inward or outward, positioning the two cutting blades at the required cutting positions on both sides of the tissue paper, placing the tissue paper at the bottom of the cutting blades. The cutting motor is started to drive the cutting blades to rotate at high speed, thereby cutting the tissue paper. The blower is turned on to blow air, which is then blown into the paper edge collection pipe through the air pipe, effectively collecting the cut edges."

[0004] Through our search of the aforementioned patented technologies and simulation of their use, we found that these technologies still have certain shortcomings in practical application:

[0005] When trimming the edges of paper products, a rotating cutting blade is mainly used to cut off the edges. While this achieves the purpose of trimming, the rotating blade generates lint, which is then blown up and dispersed into the air, causing environmental pollution. Furthermore, the blade may become dull after a period of use, requiring regular maintenance or replacement. This high replacement frequency increases production costs. Therefore, it is necessary to improve upon the existing technology to address these problems. Summary of the Invention

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the above problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a trimming device for producing household paper, comprising a workbench, a support frame fixed to the top of the workbench, a support plate fixed to the support frame, a cylinder mounted on the support plate, the power output shaft of the cylinder movably passing through the support plate and fixed to a movable plate, two adjusting plates driven by servo motors slidably connected to the bottom of the movable plate; each adjusting plate has a detachable cutting blade driven by an electric push rod on one side; a fixed plate is fixed to the top of the workbench at a position corresponding to the movable plate, and clearance grooves are provided on both sides of the top of the fixed plate to facilitate the insertion of the cutting blade.

[0008] As a further embodiment of this utility model: a fixing block is fixed on the adjusting plate, the power output shaft of the electric push rod moves through the fixing block and is fixed with a positioning plate, a limit rod is fixed at the bottom of the positioning plate, and a screw is fixed at the bottom of the limit rod.

[0009] As a further embodiment of this utility model: a limiting groove is provided in the inner cavity of the cutting blade, a groove is provided at the bottom of the cutting blade, the limiting rod is movably inserted into the limiting groove, and the screw is movably inserted into the groove. A nut is threaded onto the screw and placed in the groove. The positioning plate is closed in the positioning groove provided at the top of the inner cavity of the limiting groove.

[0010] As a further embodiment of this utility model: the servo motor is installed on one side of the movable plate, and the power output shaft of the servo motor is movably inserted into the limiting slide groove opened in the inner top wall of the movable plate and is connected to a double threaded rod. The opposite threads at both ends of the double threaded rod are threaded with limiting sliders, the limiting sliders are slidably connected in the limiting slide groove, and the bottom of the limiting sliders is fixedly connected to the top of the adjusting plate.

[0011] As a further embodiment of this utility model: two limiting posts are fixed to the top of the movable plate, and the top of the limiting posts movably extends through the support plate.

[0012] As a further embodiment of this utility model: two winding brackets are installed on one side of the workbench, and a winding roller is arranged between the two winding brackets; two unwinding brackets are installed on the other side of the workbench, and an unwinding roller is arranged between the two unwinding brackets; and edge material winding rollers are arranged on both the front and rear sides of the workbench near the fixed plate.

[0013] As a further embodiment of this utility model: the top of the adjusting plate is slidably attached to the top of the movable plate, the height of the electric push rod is lower than the height of the adjusting plate, the top of both sides of the fixed plate is designed as an arc structure, and the bottom of both sides of the adjusting plate is designed as an arc structure.

[0014] As a further embodiment of this utility model: the cutting blade has a cutting edge on the side near the unwinding roller, and the cutting edge is angled towards the side of the unwinding roller; the side of the cutting blade near the take-up roller slides against the inner wall of the relief groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. In this application, by designing a fixed plate, a movable plate, and a cutting blade, the uneven edges of the paper can be cut by contacting the edge of the paper with the blade. This allows the paper to be cut during the process of being released from the unwinding roller and wound up by the winding roller. The cut paperboard is then wound up by the winding roller, and the waste edges generated during the cutting are also wound up by the edge material winding roller. In this process, the paper edge is directly cut off by the tension generated during winding. The cut-off point is relatively stationary, which also avoids the problem of lint being blown up by the rotational force generated by the rotating blade, thereby reducing the impact on workers or the environment.

[0017] Second, in this application, the design of the electric push rod and the clearance groove allows for timely adjustment of the vertical position of the cutting blade. When the vertical position of the cutting blade is adjusted, the cutting position on the cutting blade also changes. Therefore, the cutting position of the cutting blade can be adjusted by adjusting its position. Since the cutting does not occur on the entire blade edge but only at one point, the entire blade edge can be fully utilized, ultimately extending the service life of the cutting blade, reducing the replacement frequency, and lowering production costs.

[0018] Third, in this application, through the design of cylinders, movable plates, adjusting plates, and servo motors, the distance between the two adjusting plates can be adjusted to achieve the adjustment of the distance between the two cutting blades, thereby adapting to paper products of different widths and performing the same trimming effect, improving the applicability of the device. By bringing the adjusting plates and fixed plates closer to each other, the paper product can be restricted to a certain extent between the adjusting plates and fixed plates, providing good limiting during paper cutting. When the equipment vibrates, the amplitude of the paper product's vertical vibration is reduced, thereby allowing the paper product to be trimmed in a stable state. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall three-dimensional structure of this utility model;

[0020] Figure 2 is a three-dimensional structural diagram of the movable plate of this utility model;

[0021] Figure 3 is a three-dimensional structural diagram of the fixing plate of this utility model;

[0022] Figure 4 is a three-dimensional structural diagram of the present invention after the cutting blade and the limiting rod are separated;

[0023] Figure 5 is a side cross-sectional view of the cutting blade of this utility model;

[0024] Figure 6 is a side sectional view of the active structure of this utility model.

[0025] The reference numerals and names in the figure are as follows:

[0026] 1. Workbench; 2. Support frame; 3. Support plate; 4. Cylinder; 5. Movable plate; 501. Limiting groove; 6. Fixed plate; 7. Rewinding bracket; 8. Rewinding roller; 9. Edge material rewinding roller; 10. Unwinding bracket; 11. Unwinding roller; 12. Limiting post; 13. Servo motor; 1301. Double threaded rod; 1302. Limiting slider; 14. Adjusting plate; 15. Fixed block; 16. Electric push rod; 1601. Positioning plate; 17. Cutting blade; 1701. Limiting groove; 18. Clearance groove; 19. Limiting rod; 20. Screw; 21. Groove; 22. Nut. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please refer to Figures 1-6. A trimming device for producing household paper includes a workbench 1. Two winding supports 7 are installed on one side of the workbench 1, with a winding roller 8 positioned between the two winding supports 7. Two unwinding supports 10 are installed on the other side of the workbench 1, with an unwinding roller 11 positioned between the two unwinding supports 10. Edge material winding rollers 9 are installed on both the front and rear sides of the workbench 1, near the fixed plate 6. A support frame 2 is fixed to the top of the workbench 1, and a support plate 3 is fixed to the support frame 2. A cylinder 4 is installed on the support plate 3. The power output shaft of the cylinder 4 movably passes through the support plate 3 and is fixed to a movable plate 5. When the cylinder 4 is activated, it can drive the movable plate 5 to rise or fall. When falling, it can bring the movable plate 5 closer to the fixed plate 6, so that the adjusting plate 14 is located above the fixed plate 6, and the gap between the adjusting plate 14 and the fixed plate 6 is reduced. The narrowing design effectively limits the movement of paper products, reducing the amplitude of vertical shaking and ensuring proper cutting. Two limiting posts 12 are fixed to the top of the movable plate 5, with the top of each post 12 extending through the support plate 3. These posts limit the movement trajectory of the movable plate 5, ensuring stable movement. Two adjusting plates 14, driven by a servo motor 13, are slidably connected to the bottom of the movable plate 5. Each adjusting plate 14 has a detachable cutting blade 17 driven by an electric push rod 16 on one side. A fixing plate 6 is fixed to the top of the workbench 1 at a position corresponding to the movable plate 5. Both sides of the top of the fixing plate 6 have recessed slots 18 for easy insertion of the cutting blade 17. These recessed slots allow the cutting blade 17 to move left and right or up and down within the slots.

[0029] Please refer to Figures 2, 4, and 5. In this embodiment, a fixing block 15 is fixed on the adjusting plate 14. The power output shaft of the electric push rod 16 moves through the fixing block 15 and is fixed to a positioning plate 1601. A limiting rod 19 is fixed to the bottom of the positioning plate 1601, and a screw 20 is fixed to the bottom of the limiting rod 19. A limiting groove 1701 is opened in the inner cavity of the cutting blade 17. A groove 21 is opened at the bottom of the cutting blade 17. The limiting rod 19 moves through the limiting groove 1701, and the screw 20 moves through the groove 21. A nut 22 is threaded onto the screw 20 and is placed in the groove 21. The positioning plate 1601 is closed in the positioning groove opened at the top of the inner cavity of the limiting groove 1701.

[0030] Specifically, the fixing block 15 is used to support the entire electric push rod 16 to facilitate its stability. When the electric push rod 16 is started, it can use its power output shaft to drive the positioning plate 1601 and the limit rod 19 to move, thereby driving the cutting blade 17 to move. When the cutting blade 17 needs to be removed, simply start the cylinder 4 to drive the entire movable plate 5 to rise, leaving enough space, and then use a tool to insert into the groove 21 and unscrew the nut 22. The nut 22 can be a hexagonal nut. When the nut 22 is unscrewed from the screw 20, the cutting blade 17 loses its locking effect, and then the cutting blade 17 can be slid down to remove it from the limit rod 19.

[0031] Please refer to Figures 2 and 6. In this embodiment, the servo motor 13 is installed on one side of the movable plate 5. The power output shaft of the servo motor 13 passes through the limiting slide groove 501 opened in the inner top wall of the movable plate 5 and is connected to the double threaded rod 1301. The limiting slider 1302 is threaded on the opposite threads at both ends of the double threaded rod 1301. The limiting slider 1302 is slidably connected in the limiting slide groove 501. The bottom of the limiting slider 1302 is fixedly connected to the top of the adjusting plate 14.

[0032] Specifically, after the servo motor 13 is started, it can drive the double threaded rod 1301 to rotate through its power output shaft. After the double threaded rod 1301 rotates, it can drive the two limit sliders 1302 to move closer or further apart in the limit slide groove 501 through the two opposite threads on its surface. This will drive the two adjustment plates 14 to move, thereby driving the two cutting blades 17 to move, so as to facilitate the cutting of paper products of different widths.

[0033] Please refer to Figures 2 and 6. In this embodiment, the top of the adjusting plate 14 slides and fits against the top of the movable plate 5. The height of the electric push rod 16 is lower than the height of the adjusting plate 14. The tops of both sides of the fixed plate 6 are designed as arc structures, and the bottoms of both sides of the adjusting plate 14 are designed as arc structures.

[0034] Specifically, the height of the electric push rod 16 is lower than the height of the adjusting plate 14, so that when the electric push rod 16 is driven by the adjusting plate 14, it is not blocked by the movable plate 5 and can be moved easily. Both the fixed plate 6 and the adjusting plate 14 have arc structures, which can facilitate the passage of paper and avoid damage to the paper by right angle edges.

[0035] Please refer to Figures 2 and 4. In this embodiment, the cutting blade 17 has a cutting edge on the side near the unwinding roller 11, and the cutting edge is angled towards the side of the unwinding roller 11. The side of the cutting blade 17 near the winding roller 8 slides and fits against the inner wall of one side of the relief groove 18.

[0036] Specifically, the cutting blade 17 is angled towards the unwinding roller 11, which not only allows for good cutting of the paper but also provides initial guidance for the cut strips of waste material, enabling them to separate from the complete paper and be better wound by the edge material winding roller 9. The side of the cutting blade 17 closest to the winding roller 8 slides against the inner wall of the relief groove 18, which provides a certain support and resistance to one side of the cutting blade 17, making the cutting blade 17 more stable when cutting the paper.

[0037] When using,

[0038] First, start the servo motor 13 to drive the two adjustment plates 14 to move towards each other or away from each other. The two adjustment plates 14 drive the two cutting blades 17 to move, thereby adjusting the distance between the two cutting blades 17 to adapt to the paper products to be cut later. The paper products that need to be trimmed are released from the unwinding roller 11 and pass between the fixed plate 6 and the adjustment plate 14, and then bound to the take-up roller 8. When the edge of the paper products comes into contact with the cutting blades 17, the strip-shaped waste edge material formed is bound to the edge material take-up roller 9.

[0039] As the take-up roller 8 continuously takes up the paper, the unwind roller 11 continuously unwinds the paper, so that the paper with the trimmed edges can be taken up by the take-up roller 8, while the waste edge material that has been cut off is taken up by the edge material take-up roller 9.

[0040] When the cutting point of the cutting blade 17 has been used for a long time, the electric push rod 16 can be activated to drive the cutting blade 17 to move upward or downward, thereby adjusting the cutting point of the cutting blade 17 and extending its service life. When multiple cutting points on the cutting blade 17 have been used for a long time, the cutting blade 17 can be removed by unscrewing the nut 22 and then pulled out from the limit rod 19 and replaced with a new cutting blade 17.

[0041] It should be noted that the edge material take-up roller 9, take-up roller 8 and unwind roller 11 can all be driven by three additional motors. The power output shafts of the three motors are respectively connected to the shafts of the edge material take-up roller 9, take-up roller 8 and unwind roller 11. Since the motors are a publicly available technical feature, they are not shown in the figure or described in detail.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A trimming device for producing household paper, characterized in that, The system includes a workbench (1), a support frame (2) fixed to the top of the workbench (1), a support plate (3) fixed to the support frame (2), a cylinder (4) mounted on the support plate (3), the power output shaft of the cylinder (4) movably passing through the support plate (3) and fixed to a movable plate (5), and two adjusting plates (14) driven by a servo motor (13) slidably connected to the bottom of the movable plate (5); each adjusting plate (14) has a detachable cutting blade (17) driven by an electric push rod (16) on one side; a fixed plate (6) is fixed to the top of the workbench (1) at a position corresponding to the movable plate (5), and the fixed plate (6) has clearance grooves (18) on both sides of the top of the fixed plate (6) to facilitate the insertion of the cutting blade (17); the adjusting plate (14) has A fixed block (15) is fixed, the power output shaft of the electric push rod (16) moves through the fixed block (15) and is fixed with a positioning plate (1601), a limit rod (19) is fixed at the bottom of the positioning plate (1601), and a screw (20) is fixed at the bottom of the limit rod (19); a limit groove (1701) is opened in the inner cavity of the cutting blade (17), a groove (21) is opened at the bottom of the cutting blade (17), the limit rod (19) moves through the limit groove (1701), and the screw (20) moves through the groove (21), a nut (22) is threaded on the screw (20), and the nut (22) is placed in the groove (21), and the positioning plate (1601) is closed in the positioning groove opened at the top of the inner cavity of the limit groove (1701).

2. The edge-trimming device for producing household paper according to claim 1, characterized in that, The servo motor (13) is installed on one side of the movable plate (5). The power output shaft of the servo motor (13) is movably inserted into the limiting slide groove (501) opened in the inner top wall of the movable plate (5) and is connected to a double threaded rod (1301). The limiting slider (1302) is threaded on the opposite threads at both ends of the double threaded rod (1301). The limiting slider (1302) is slidably connected in the limiting slide groove (501). The bottom of the limiting slider (1302) is fixedly connected to the top of the adjusting plate (14).

3. The edge-trimming device for producing household paper according to claim 1, characterized in that, Two limiting posts (12) are also fixed to the top of the movable plate (5), and the top of the limiting posts (12) can move through the support plate (3).

4. The edge-trimming device for producing household paper according to claim 1, characterized in that, Two winding brackets (7) are installed on one side of the workbench (1), and a winding roller (8) is provided between the two winding brackets (7). Two unwinding brackets (10) are installed on the other side of the workbench (1), and an unwinding roller (11) is provided between the two unwinding brackets (10). Edge material winding rollers (9) are provided on both the front and rear sides of the workbench (1) and near the fixed plate (6).

5. The edge-trimming device for producing household paper according to claim 1, characterized in that, The top of the adjusting plate (14) slides and fits against the top of the movable plate (5). The height of the electric push rod (16) is lower than the height of the adjusting plate (14). The tops of the left and right sides of the fixed plate (6) are designed as arc structures, and the bottoms of the left and right sides of the adjusting plate (14) are designed as arc structures.

6. The edge-trimming device for producing household paper according to claim 1, characterized in that, The cutting blade (17) has a cutting edge on the side near the unwinding roller (11), and the cutting edge is angled towards the side of the unwinding roller (11). The side of the cutting blade (17) near the winding roller (8) slides against the inner wall of one side of the relief groove (18).

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