A fixing device for paper tube cutting
By designing a self-centering paper tube cutting and fixing device, the problem of existing devices being unable to adapt to paper tubes of different specifications is solved, and multi-angle stable clamping and precise cutting are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGXIANG HONGCHEN PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-29
AI Technical Summary
Existing paper tube cutting and fixing devices are difficult to adjust in a simple and quick way to accommodate paper tubes of different specifications, and positioning deviations are prone to occur during the adjustment process, causing the paper tube to shake or shift during the cutting process.
A fixing device is designed, comprising a base, a support rod, a fixed rod, a rotating rod, a limiting plate, and a movable block. By rotating the rotating rod, the rotating plate and the limiting rod can slide, achieving multi-angle clamping and adjustment. The movable block is self-centered with the fixed rod as the center to avoid deviation, and the stability is improved by the guide wheel mechanism and the stabilizing block.
It enables multi-angle self-centering clamping of paper tubes of different diameters, avoiding deviations caused by adjustments and increasing the stability and cutting accuracy of the paper tubes.
Smart Images
Figure CN224295995U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper tube production technology, and in particular to a fixing device for paper tube cutting. Background Technology
[0002] Paper tube processing equipment is used to process paper in a series of ways and finally turn it into a tube shape. Most paper tubes are spiral paper tubes and seamless paper tubes, which have a wide range of applications and are generally used as the inner core of wound products.
[0003] Paper tubes processed by paper tube processing equipment are usually long strips. These strips need to be cut into equal parts. However, the existing fixing devices for long paper tubes have limited functionality and cannot be easily and quickly adjusted to accommodate different specifications of paper tubes. Furthermore, the adjusted fixing devices are prone to positioning deviations, which can cause the paper tubes to shake or shift during the cutting process. Utility Model Content
[0004] This application provides a fixing device for paper tube cutting, which can solve the problem that existing paper tube cutting fixing devices are difficult to adjust in a simple and quick way to adapt to paper tubes of different specifications, and that the fixing device may deviate during the adjustment process, resulting in the paper tube shaking or shifting during the cutting process.
[0005] This application provides a fixing device for paper tube cutting, including a base, a mounting seat mounted on the base, a support rod mounted on the mounting seat, a fixing rod installed inside the support rod, a rotating rod mounted on the fixing rod, a fastening bolt mounted on the support rod, one end of the fastening bolt abutting against the rotating rod, a groove formed at one end of the rotating rod, a plurality of annularly arranged mounting grooves formed on the support rod, a movable block installed in each mounting groove, a limiting plate fixedly connected to the fixing rod, a sliding groove formed on the limiting plate, a rotating plate mounted on the rotating rod, an arc groove formed on the rotating plate, a movable rod connected to the movable block between the limiting plate and the rotating plate, a limiting rod mounted on the movable rod, one end of the limiting rod located in the arc groove, and the other end of the limiting rod located in the sliding groove.
[0006] Furthermore, two auxiliary plates are fixedly connected to the fixed rod. The structure of the auxiliary plates is the same as that of the limiting plate. A second movable rod is provided between the two auxiliary plates. One end of the second movable rod is fixedly connected to the movable block. A second limiting rod is fixedly connected to the second movable rod. The second limiting rod slides in the groove on the auxiliary plate.
[0007] Furthermore, a transmission roller is provided below the fixed rod, the transmission roller is rotatably connected to the support frame, a motor is installed on the support frame, the motor is fixedly connected to the transmission roller, a cylinder is provided inside the base, the cylinder is fixedly connected to the base, and the cylinder is fixedly connected to the support frame.
[0008] Furthermore, a sliding plate is slidably connected to the fixed rod, and several slots are provided on the sliding plate. A scraper is hinged in the slot, and a torsion spring is installed at the hinge point between the scraper and the slot. One end of the torsion spring is fixedly connected to the slot, and the other end of the torsion spring is fixedly connected to the scraper. One end of the scraper is inclined. A second cylinder is installed on the mounting base, and the second cylinder is fixedly connected to the sliding plate.
[0009] Furthermore, a guide wheel mechanism is installed on the base. The guide wheel mechanism includes a guide wheel, a pulley assembly, a slider, a bidirectional threaded rod, a hand crank, a second motor, and a second rotating rod. The bidirectional threaded rod is located inside the base and is rotatably connected to the base. The hand crank is fixedly connected to the bidirectional threaded rod. The slider cooperates with the threaded rod. The second rotating rod is rotatably connected to the slider. The second motor is installed on the slider. The second motor and the rotating rod are connected via a pulley assembly. A guide wheel is fixedly connected to the second rotating rod. An oblong groove is provided on the base, and the second rotating rod slides within the oblong groove.
[0010] Furthermore, a stabilizing block is provided below the fixing rod, the stabilizing block slides on the base, a cylinder three is fixedly connected inside the base, the cylinder three is fixedly connected to the stabilizing block, and a U-shaped groove is provided on the stabilizing block.
[0011] In summary, the beneficial effects of the fixing device for paper tube cutting in this application are as follows: simply rotating the rotating rod can drive the rotating plate on the rotating rod to rotate, so that the limiting rod slides in the arc groove and the limiting groove. By simply rotating the rotating rod, all the movable blocks can be controlled to extend or retract simultaneously, realizing multi-angle clamping and adjustment of paper tubes of different diameters without changing the hardware. Furthermore, the several movable blocks are arranged in a ring around the fixing rod, realizing that the several movable blocks are self-centering, avoiding deviations caused by adjustment, and further increasing the stability of the paper tube. Attached Figure Description
[0012] Figure 1 A perspective view of the utility model;
[0013] Figure 2 This is a side sectional view of the utility model;
[0014] Figure 3 This is a schematic diagram of the internal structure of the support rod of the utility model.
[0015] Figure 4 for Figure 2 A magnified view of a section at point A in the middle;
[0016] Figure 5 This is a schematic diagram of the unfolded movable block of the utility model;
[0017] Figure 6 This is a schematic diagram of the guide wheel mechanism of a utility model.
[0018] Reference numerals in the attached diagram: 1. Base; 2. Mounting seat; 3. Support rod; 4. Fixed rod; 5. Rotating rod one; 6. Groove; 7. Mounting slot; 8. Movable block; 9. Limiting plate; 10. Slide groove; 11. Rotating plate; 12. Arc groove; 13. Movable rod one; 14. Limiting rod one; 15. Auxiliary plate; 16. Movable rod two; 17. Limiting rod two; 18. Transmission roller; 19. Support frame; 20. Motor one; 21. Cylinder one; 22. Sliding plate; 23. Empty groove; 24. Scraper; 25. Cylinder two; 26. Guide wheel mechanism; 2601. Guide wheel; 2602. Pulley assembly; 2603. Slider; 2604. Bidirectional threaded rod; 2605. Hand crank; 2606. Motor two; 2607. Rotating rod two; 27. Waist-shaped groove; 28. Stabilizing block; 29. Cylinder three. Detailed Implementation
[0019] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
[0020] like Figures 1 to 6As shown, a fixing device for paper tube cutting includes a base 1, a mounting base 2 fixedly connected to the upper surface of the base 1, a support rod 3 provided on the base 1, the left end of the support rod 3 fixedly connected to the mounting base 2, a fixing rod 4 provided inside the support rod 3, the left end of the fixing rod 4 fixedly connected to the support rod 3, and a rotating rod 5 rotatably connected to the right end of the fixing rod 4. The right end of the rotating rod 5 is flush with the right end of the support rod 3 and rotatably connected to the support rod 3. A fastening bolt is installed on the support rod 3, and the support rod 3 and the fastening bolt are connected by threads. One end of the fastening bolt abuts against the rotating rod 5, at which time the rotating rod 5 is locked. Rotating the fastening bolt... One end of the fastening bolt can be moved away from the rotating rod 5, allowing the rotating rod 5 to rotate. A groove 6 is provided on the end face of the rotating rod 5 that is flush with the support rod 3. The groove 6 is used to rotate the rotating rod 5 with the help of a tool. It can be cross-shaped, hexagonal, etc. Several mounting grooves 7 are provided on the support rod 3. The mounting grooves 7 are circularly arranged with the rotating rod 5 as the center. A movable block 8 is provided in each mounting groove 7. A rotating plate 11 is fixedly connected to the rotating rod 5. The rotating plate 11 has a number of arc grooves 12 corresponding to the number of movable blocks 8. The limiting plate 9 has a number of sliding grooves 10 corresponding to the number of movable blocks 8. Two corresponding sliding grooves 10 are provided. The movable block 8 is aligned with the fixed rod 4. A limiting plate 9 is fixedly connected to the fixed rod 4. A movable rod 13 is positioned between the rotating plate 11 and the limiting plate 9. The top end of the movable rod 13 is fixedly connected to the lower surface of the movable block 8. A limiting rod 14 is fixedly connected to the bottom end of the movable rod 13. One end of the limiting rod 14 slides in the arc groove 12, and the other end slides in the slide groove 10. The limiting plate 9 is located to the right of the fixed rod 4. Two auxiliary plates 15 are fixedly connected to the left side of the fixed rod 4. The auxiliary plates 15 have the same structure as the limiting plate 9. A movable rod 2 16 is positioned between the two auxiliary plates 15. The top end of the movable rod 2 16 is connected to the movable block 8. The lower surface of the movable block 8 is fixedly connected, and the bottom end of the movable rod 16 is fixedly connected to the limiting rod 17. The two ends of the limiting rod 17 slide in the grooves 10 on the two auxiliary plates 15 respectively. By rotating the rotating rod 5, the rotating plate 11 is rotated. The arc groove on the rotating plate 11 drives the limiting rod 14 to move. Since the grooves 10 and the movable block 8 are set on the same straight line, the movable block 8 can only translate. The movable block 8 is set in a ring with the center of the rotating rod 5. When the rotating plate 11 rotates, all the movable blocks 8 will move at the same time, thereby achieving self-centering. The auxiliary plates 15 and the limiting rod 17 can increase the stability of the movable block 8 during the movement.
[0021] Furthermore, such as Figure 2As shown, a transmission roller 18 is provided below the support rod 3. The transmission roller 18 is rotatably connected to the support frame 19. A motor 20 is provided on one side of the support frame 19. The motor 20 is fixedly connected to the support frame 19. The output shaft of the motor 20 is fixedly connected to the transmission roller 18. The motor 20 is used to drive the transmission roller 18 to rotate. A cylinder 21 is provided below the support frame 19. The cylinder 21 is fixedly connected to the base 1. The output shaft of the cylinder 21 is fixedly connected to the lower surface of the support frame 19. When the paper tube is cut, the cylinder 21 pushes the support frame 19 to rise. The rotating transmission roller 18 drives the paper tube to rotate, which can increase the cutting effect and make the cut more even.
[0022] Furthermore, such as Figure 1 and Figure 2 As shown, a sliding plate 22 is slidably connected to the support rod 3, and the sliding plate 22 is located on the left side of the support rod 3. A cylinder 25 is fixedly connected to the mounting base 2, and the output shaft of the cylinder 25 is fixedly connected to the sliding plate 22. A number of slots 23 corresponding to the number of movable blocks 8 are formed on the sliding plate 22. The width of the slots 23 is greater than the width of the movable blocks 8. A scraper 24 is installed in the slots 23, with both sides of the scraper 24 fitting against the inner wall of the slot 23. One end of the scraper 24 abuts against the support rod 3, and the other end of the scraper 24 is hinged to the slot 23. At the hinge point between the scraper 24 and the slot 23... A torsion spring is installed, with one end of the torsion spring fixedly connected to the slot 23 and the other end of the torsion spring fixedly connected to the scraper 24. The scraper 24 is inclined at the end that rests on the support rod 3. The sliding block slides on the support rod 3 under the push of the cylinder 25. The sliding block is used to push the cut paper tube off the support rod 3. Sometimes, the movable block 8 will be in different positions for paper tubes of different specifications. When the scraper 24 contacts the movable block 8, the scraper 24 will be pushed open. Under the action of the torsion spring, the scraper 24 can stay on the support rod 3, which can better bring out the paper tube of the movable block 8.
[0023] Furthermore, such as Figure 1 , Figure 2 and Figure 6As shown, a guide wheel mechanism 26 is installed on the base 1, located on the right side of the base 1. The guide wheel mechanism 26 includes a guide wheel 2601, a pulley group 2602, a slider 2603, a bidirectional threaded rod 2604, a handwheel 2605, a second motor 2606, and a second rotating rod 2607. A guide wheel 2601 is respectively provided on both sides of the support rod 3. The top end of the second rotating rod 2607 is fixedly connected to the guide wheel 2601. Two oblong grooves 27 are formed on the base 1, with each of the two second rotating rods 2607 corresponding to one oblong groove 27, and the second rotating rod 2607 can slide within the oblong grooves 27. The second rotating rod 2607 is rotatably connected to the slider 2603. The two sliders 2603 are connected to the bidirectional threaded rod 2604 by threads. When the bidirectional threaded rod... When the threaded rod 2604 rotates, the two sliders 2603 move relative to each other. A second motor 2606 is fixedly connected to the slider 2603. The second motor 2606 is connected to the second rotating rod 2607 through a pulley set 2602. The second motor 2606 drives the second rotating rod 2607 to rotate. The bidirectional threaded rod 2604 is rotatably connected to the base 1. One end of the bidirectional threaded rod 2604 extends out of the base 1. A hand crank 2605 is fixedly connected to the end of the bidirectional threaded rod 2604 that extends out of the base 1. By rotating the hand crank 2605, the two sliders 2603 can be moved closer or further apart at the same time, thereby controlling the distance between the two guide wheels 2601. This is used to cooperate with the movable block 8 to adapt to paper tubes of different specifications. The two guide wheels 2601 can assist in feeding or unloading.
[0024] Furthermore, a stabilizing block 28 is provided below the connecting rod, and the stabilizing block 28 slides on the base 1. A cylinder 29 is provided below the stabilizing block 28, and the cylinder 29 is fixedly connected to the base 1. The output shaft of the cylinder 29 is fixedly connected to the lower surface of the stabilizing block 28. A U-shaped groove is provided on the stabilizing block 28, and the U-shaped groove cooperates with the support rod 3. When the transmission roller 18 drives the paper tube to rotate, in order to prevent the support rod 3 from shaking, the cylinder 29 pushes the stabilizing block 28 to support the support rod 3 through the U-shaped groove.
[0025] Working principle of the utility model: Initial state: The movable block 8 is located in the mounting groove 7. The rotating rod 5 is rotated through the groove 6 (such as a hexagonal tool), which drives the rotating plate 11 to rotate synchronously. The arc groove 12 forces the limiting rod 14 to slide in the sliding groove 10. At the same time, under the action of the sliding groove on the limiting plate 9, the movable rod 13 is pushed up and down, so that the circularly distributed movable blocks 8 extend or retract radially along the mounting groove 7. Since the movable blocks 8 are arranged in a ring with the fixed rod 4 as the center, when the rotating rod 5 is rotated, all the movable blocks 8 move synchronously, realizing self-centering clamping, so that the center remains unchanged and forming multi-point uniform clamping. After the adjustment is completed, tighten the fastening bolt to lock the rotating rod 5 and fix the position of the movable block 8. Then the paper tubes of this model can be cut in batches. If other specifications are changed, the above steps can be repeated.
Claims
1. A fixing device for cutting paper tubes, characterized in that, The system includes a base (1), a mounting seat (2) mounted on the base (1), a support rod (3) mounted on the mounting seat (2), a fixing rod (4) installed inside the support rod (3), a rotating rod (5) mounted on the fixing rod (4), a fastening bolt mounted on the support rod (3), one end of the fastening bolt abutting against the rotating rod (5), a groove (6) formed at one end of the rotating rod (5), and several annularly arranged mounting slots (7) formed on the support rod (3). Movable blocks (8) are installed within the mounting slots (7). The fixing rod (4)... A limiting plate (9) is fixedly connected to the upper part of the rotating rod (5), and a sliding groove (10) is provided on the limiting plate (9). A rotating plate (11) is installed on the rotating rod (5), and an arc groove (12) is provided on the rotating plate (11). A movable rod (13) is provided between the limiting plate (9) and the rotating plate (11). The movable rod (13) is connected to the movable block (8). A limiting rod (14) is installed on the movable rod (13). One end of the limiting rod (14) is located in the arc groove (12), and the other end of the limiting rod (14) is located in the sliding groove (10).
2. The fixing device for paper tube cutting according to claim 1, characterized in that, Two auxiliary plates (15) are fixedly connected to the fixed rod (4). The structure of the auxiliary plate (15) is the same as that of the limiting plate (9). A movable rod (16) is provided between the two auxiliary plates (15). One end of the movable rod (16) is fixedly connected to the movable block (8). A limiting rod (17) is fixedly connected to the movable rod (16). The limiting rod (17) slides in the groove (10) on the auxiliary plate (15).
3. The fixing device for paper tube cutting according to claim 2, characterized in that, A transmission roller (18) is provided below the support rod (3). The transmission roller (18) is rotatably connected to the support frame (19). A motor (20) is installed on the support frame (19). The motor (20) is fixedly connected to the transmission roller (18). A cylinder (21) is provided inside the base (1). The cylinder (21) is fixedly connected to the base (1) and the support frame (19).
4. The fixing device for paper tube cutting according to claim 3, characterized in that, A sliding plate (22) is slidably connected to the fixed rod (4). Several slots (23) are provided on the sliding plate (22). A scraper (24) is hinged in the slot (23). A torsion spring is installed at the hinge point between the scraper (24) and the slot (23). One end of the torsion spring is fixedly connected to the slot (23), and the other end of the torsion spring is fixedly connected to the scraper (24). One end of the scraper (24) is inclined. A cylinder (25) is installed on the mounting base (2). The cylinder (25) is fixedly connected to the sliding plate (22).
5. A fixing device for paper tube cutting according to claim 4, characterized in that, A guide wheel mechanism (26) is installed on the base (1). The guide wheel mechanism (26) includes a guide wheel (2601), a pulley group (2602), a slider (2603), a bidirectional threaded rod (2604), a hand crank (2605), a second motor (2606), and a second rotating rod (2607). The bidirectional threaded rod (2604) is located inside the base (1) and is rotatably connected to the base (1). The hand crank (2605) is fixedly connected to the bidirectional threaded rod (2607). On 04), the slider (2603) is engaged with the threaded rod, the second rotating rod (2607) is rotatably connected to the slider (2603), the second motor (2606) is installed on the slider (2603), the second motor (2606) is connected to the rotating rod through a pulley group (2602), the second rotating rod (2607) is fixedly connected to the guide wheel (2601), the base (1) is provided with a waist-shaped groove (27), and the second rotating rod (2607) slides in the waist-shaped groove (27).
6. A fixing device for paper tube cutting according to claim 1, characterized in that, A stabilizing block (28) is provided below the fixing rod (4). The stabilizing block (28) slides on the base (1). A cylinder (29) is fixedly connected inside the base (1). The cylinder (29) is fixedly connected to the stabilizing block (28). A U-shaped groove is provided on the stabilizing block (28).