Paper element cutting and conveying device for paper mill

Abstract

The utility model discloses a paper mill paper core cutting and conveying device which comprises a cutting knife and a hydraulic cylinder, the cutting knife is installed at the output end of a first motor through a coupler, the side edge of a rack is provided with the hydraulic cylinder, the output end of the hydraulic cylinder is fixed to the first motor, the rack is rotationally connected with a threaded rod, and the threaded rod is in threaded connection with a rotating column. Moving rods used for supporting paper cores with different diameters are arranged around the rotating column in a surrounding mode, and rubber is wrapped on the moving rods. According to the paper element cutting and conveying device for the paper mill, rubber on the moving rod is attached to the inner wall of a paper element, the interior of the paper element is supported through the rubber, the rubber and the moving rod are long and suitable for the paper elements with different lengths, meanwhile, clamping and disassembling through a clamp are not needed in the cutting process, operation steps are reduced, grooves are formed in the periphery of the rotating column, and the cutting efficiency is improved. The rotating column rotates to push the moving rod through the groove, and the moving rod can be correspondingly adjusted according to the inner diameter of the paper core, so that the application range of the cutting and transporting device is widened, and the cutting and transporting device adapts to the paper cores of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of paper core cutting technology, specifically a paper core cutting and conveying device for paper mills. Background Technology

[0002] Paper is a common product in daily life. Different types of paper are used for different purposes. Household paper includes toilet paper rolls, facial tissues, and napkins. Toilet paper rolls are divided into cored rolls and coreless rolls. Cored rolls have a built-in rigid paper tube that can be hung on a toilet paper holder. When you pull it out, the paper rotates around the axis, making the operation smoother. They are suitable for fixed scenarios such as homes and public places and are easy to store for a long time.

[0003] Currently, the size of cored toilet paper rolls on the market varies depending on the brand and model. The core size also varies for different sizes of cored toilet paper rolls. Therefore, the core length needs to be cut according to the size during the production process of cored toilet paper rolls.

[0004] The common paper core cutting and conveying devices on the market place the entire paper tube on the machine's worktable, fix the end of the paper tube with clamps on the worktable, and then cut it with a high-speed rotating cutting device. When the paper tube is long, fixing only one end of the paper tube can easily cause it to wobble, making it difficult to ensure stability and affecting the normal cutting of the paper tube. Therefore, multiple clamps are required on the paper tube. When the cutting device gradually approaches the clamps, the clamps need to be disassembled. The operation steps are relatively cumbersome, affecting the cutting effect and making it unsuitable for the high-efficiency production of paper mills. Utility Model Content

[0005] The purpose of this utility model is to provide a paper core cutting and conveying device for paper mills, so as to solve the problem mentioned in the background art that the current paper core cutting devices on the market need to clamp long paper tubes at multiple positions, and the operation steps are cumbersome.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a paper mill core cutting and conveying device, including a cutting blade, which is installed at the output end of a motor via a coupling. A hydraulic cylinder is installed on the side of the frame, and the output end of the hydraulic cylinder is fixed to the motor. A threaded rod is rotatably connected to the frame, and a rotating column is threadedly connected to the threaded rod. Moving rods for supporting paper cores of different diameters are surrounded around the rotating column, and the moving rods are wrapped with rubber.

[0007] Preferably, a second motor is mounted on the frame, and the output end of the second motor is connected to an electric telescopic rod via a coupling. A transmission gear is mounted on the end of the electric telescopic rod.

[0008] Preferably, a rotating gear is fixedly connected to the outside of the rotating column, the rotating gear meshes with the transmission gear, and grooves are provided around the outside of the rotating column, with one side of the groove having an inclined structure.

[0009] Preferably, a support plate is installed at one end of the threaded rod near the cutting blade, and a sliding groove is formed around the inside of the support plate, through which a connecting rod slides.

[0010] Preferably, both the connecting rod and the moving rod are configured with an "L" shape, and the other end of the connecting rod is fixed to the moving rod.

[0011] Preferably, a cylinder is installed on the support plate near the cutting blade, and a sleeve rod is installed around the output end of the cylinder. The other end of the sleeve rod has a chuck, which slides on the rubber.

[0012] Preferably, the end of the moving rod away from the cutting blade is inserted into the groove, and the groove corresponds one-to-one with the slide.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The rubber on the moving rod is attached to the inner wall of the paper core, providing support for the paper core. Both the rubber and the moving rod are relatively long, accommodating paper cores of different lengths. Furthermore, no clamping or disassembly is required during the cutting process, reducing operational steps. Grooves are formed around the rotating column; the rotation of the column pushes the moving rods through these grooves, causing multiple moving rods to slide on the support plate. The moving rods can be adjusted according to the inner diameter of the paper core, broadening the application range of the cutting and transport device to accommodate paper cores of different specifications. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the rotating column of this utility model;

[0018] Figure 4 This is a side view of the rotating column structure of this utility model;

[0019] Figure 5 This is a side view of the support plate structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the sleeve structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the connecting rod structure of this utility model.

[0022] In the diagram: 1. Frame; 2. Hydraulic cylinder; 3. Cutting blade; 4. Rubber; 5. Chuck; 6. Transmission gear; 7. Rotating gear; 8. Rotating column; 9. Threaded rod; 10. Motor II; 11. Moving rod; 12. Connecting rod; 13. Cylinder; 14. Motor I; 15. Sleeve rod; 16. Support plate; 17. Slide groove. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-7 The present invention provides the following technical solution:

[0025] A paper core cutting and conveying device for a paper mill includes a cutting blade 3, which is mounted on the output end of a motor 14 via a coupling. A hydraulic cylinder 2 is mounted on the side of a frame 1, and the output end of the hydraulic cylinder 2 is fixed to the motor 14. A rotating column 8 is surrounded by movable rods 11 for supporting paper cores of different diameters. The movable rods 11 are covered with rubber 4. A second motor 10 is mounted on the frame 1, and the output end of the second motor 10 is connected to an electric telescopic rod (not shown in the figure) via a coupling. A transmission gear 6 is mounted on the end of the electric telescopic rod.

[0026] First, the entire paper tube is placed over the outside of the moving rod 11 and the rubber 4. The moving rod 11 is adjusted according to the size of the paper core being processed, so that the rubber 4 fits against the inside of the paper core. The paper core is supported by the moving rod 11 and the rubber 4. The chuck 5 has a specific structure based on existing mature technology. The chuck 5 fixes one end of the paper core. The second motor 10 and the first motor 14 are started. The second motor 10 causes the electric telescopic rod and the transmission gear 6 to rotate. The rotation of the transmission gear 6 drives the rotating gear 7 to rotate synchronously. The rotation of the rotating gear 7 drives the threaded rod 9 and the rotating column 8 to rotate synchronously. The rotation of the threaded rod 9 drives the support plate 16 to rotate synchronously. The rotation of the support plate 16 drives the moving rod 11 to rotate, which in turn drives the paper core to rotate synchronously. The first motor 14 causes the cutting blade 3 to rotate. The hydraulic cylinder 2 causes the first motor 14 and the cutting blade 3 to extend and retract, gradually separating from and approaching the paper tube, thus achieving the cutting of the paper core.

[0027] A cylinder 13 is installed on the support plate 16 near the cutting blade 3. A sleeve rod 15 is installed around the output end of the cylinder 13, and a chuck 5 is hidden at the other end of the sleeve rod 15. The chuck 5 slides on the rubber 4.

[0028] During the cutting process, when the cutting blade 3 separates from the paper core, the cylinder 13 operates. The cylinder 13 extends, causing the sleeve rod 15 and the chuck 5 to gradually move towards the side of the cutting blade 3. The cut paper core gradually falls down, while the uncut paper core gradually moves closer to the cutting blade 3, thus realizing the transportation of the paper core.

[0029] A threaded rod 9 is rotatably connected to the frame 1, and a rotating column 8 is threadedly connected to the threaded rod 9. A rotating gear 7 is fixedly connected to the outside of the rotating column 8. The rotating gear 7 meshes with the transmission gear 6. A groove is formed around the outside of the rotating column 8. One side of the groove is inclined. A support plate 16 is installed at the end of the threaded rod 9 near the cutting blade 3. A sliding groove 17 is formed around the inside of the support plate 16. A connecting rod 12 slides inside the sliding groove 17. Both the connecting rod 12 and the moving rod 11 are L-shaped. The other end of the connecting rod 12 is fixed to the moving rod 11. The end of the moving rod 11 away from the cutting blade 3 is inserted into the groove. The groove and the sliding groove 17 correspond one-to-one.

[0030] Before cutting, adjust the position of the moving rod 11, start the electric telescopic rod, the electric telescopic rod extends and retracts, driving the transmission gear 6 to move synchronously, so that the transmission gear 6 and the rotating gear 7 are disengaged. Hold the threaded rod 9 by hand and rotate the rotating column 8 clockwise. When the rotating column 8 rotates clockwise, it will move laterally synchronously. The rotating column 8 drives the rotating gear 7 to move synchronously. Since the threaded rod 9 is fixed, the support plate 16 is also fixed. The clockwise rotation of the rotating column 8 makes the inclined edge of the groove gradually approach the moving rod 11. The inclined edge of the groove pushes the moving rod 11. The moving rod 11 is connected by the connecting rod 12 and the sliding... The groove 17 moves outward in coordination with the other two, and the multiple moving rods 11 around it move the same distance until the rotating column 8 can no longer be rotated. At this time, the rubber 4 on the moving rod 11 has moved to contact the inner wall of the paper core, thus limiting the paper core. Then the threaded rod 9 is released, and the motor 10 is started to adjust the transmission gear 6 so that the transmission gear 6 can mesh with the rotating gear 7. The electric telescopic rod is started to move the transmission gear 6 to a position flush with the rotating gear 7 until the rotating gear 7 and the transmission gear 6 mesh. This allows for the cutting of paper cores of different specifications, greatly expanding the applicability of the device.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A paper core cutting and conveying device for a paper mill, comprising a cutting blade (3) mounted on the output end of a motor (14) via a coupling, and a hydraulic cylinder (2) mounted on the side of a frame (1), the output end of the hydraulic cylinder (2) being fixed to the motor (14), characterized in that, A threaded rod (9) is rotatably connected to the frame (1), and a rotating column (8) is threadedly connected to the threaded rod (9). The rotating column (8) is surrounded by movable rods (11) for supporting paper cores of different diameters. The movable rods (11) are wrapped with rubber (4).

2. The paper mill core cutting and conveying device according to claim 1, characterized in that: The frame (1) is equipped with a second motor (10), and the output end of the second motor (10) is connected to an electric telescopic rod through a coupling. The end of the electric telescopic rod is equipped with a transmission gear (6).

3. The paper mill core cutting and conveying device according to claim 2, characterized in that: A rotating gear (7) is fixedly connected to the outside of the rotating column (8). The rotating gear (7) meshes with the transmission gear (6). A groove is provided around the outside of the rotating column (8), and one side of the groove is inclined.

4. The paper mill core cutting and conveying device according to claim 1, characterized in that: The threaded rod (9) is fitted with a support plate (16) at one end near the cutting blade (3). The support plate (16) has a groove (17) around its interior, and a connecting rod (12) slides inside the groove (17).

5. The paper mill core cutting and conveying device according to claim 4, characterized in that: Both the connecting rod (12) and the moving rod (11) are configured with an "L" shape, and the other end of the connecting rod (12) is fixed to the moving rod (11).

6. The paper mill core cutting and conveying device according to claim 4, characterized in that: A cylinder (13) is installed on the side of the support plate (16) near the cutting blade (3). A sleeve rod (15) is installed around the output end of the cylinder (13), and a chuck (5) is hidden at the other end of the sleeve rod (15). The chuck (5) slides on the rubber (4).

7. The paper mill core cutting and conveying device according to claim 1, characterized in that: The end of the moving rod (11) away from the cutting blade (3) is inserted into the groove, and the groove corresponds one-to-one with the slide (17).

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