Paper tube cutting mechanism capable of synchronously cutting multiple sections

By designing a paper tube cutting mechanism that can simultaneously cut multiple segments, and utilizing a combination of drive shaft and multiple cutting blade structures, multi-segment cutting of paper tubes is achieved, solving the problems of low efficiency and poor flexibility of traditional cutting machines, and improving cutting efficiency and flexibility.

CN224266058UActive Publication Date: 2026-05-22HONGGE (GUANGZHOU) PAPER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HONGGE (GUANGZHOU) PAPER CO LTD
Filing Date
2025-04-27
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Traditional paper tube cutters can only cut with a single blade, which is inefficient and lacks flexibility, and cannot flexibly adjust the cutting length.

Method used

Design a paper tube cutting mechanism capable of simultaneous multi-segment cutting, including a drive structure, an adjustment structure, and multiple cutter structures. The drive shaft drives the paper tube to rotate, and through the combination of the adjustment structure and the cutter structures, multiple cutters can cut the paper tube simultaneously or individually. The cutter spacing can be adjusted to cut different sizes.

Benefits of technology

It improves the efficiency and flexibility of paper tube cutting, enabling the cutting of paper tube segments of different sizes according to needs, thus enhancing the flexibility and efficiency of cutting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The paper tube cutting mechanism comprises a driving structure, an adjusting structure, a first cutter structure, a second cutter structure and a third cutter structure, the driving structure comprises a driving shaft used for driving a paper tube to rotate, and the adjusting structure comprises a first sliding rail, a second sliding rail and a third sliding rail. The first cutter structure is arranged on the first sliding rail in a sliding mode and comprises a first cutter used for stretching out and drawing back towards the driving shaft, the second cutter structure is arranged on the first sliding rail in a sliding mode and comprises a second cutter used for stretching out and drawing back towards the driving shaft, and the third cutter structure is arranged on the first sliding rail in a sliding mode and comprises a third cutter used for stretching out and drawing back towards the driving shaft. The third cutter structure comprises a third cutter used for stretching out and drawing back towards the driving shaft. By means of the mode, a paper tube can be arranged on the driving shaft in a penetrating mode, then a single cutter or a plurality of cutters are controlled to cut the paper tube on the driving shaft according to needs, multi-size synchronous cutting of the paper tube is achieved, cutting efficiency of the paper tube is high, and flexibility is high.
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Description

Technical Field

[0001] This utility model relates to the field of paper tube cutting equipment, specifically a paper tube cutting mechanism capable of simultaneous multi-segment cutting. Background Technology

[0002] In today's society, with the rapid development of the social economy, paper tubes, as a recyclable, environmentally friendly and energy-saving packaging material, have become increasingly popular in daily life due to their advantages such as low cost, biodegradability, and ease of transportation.

[0003] In the paper tube production process, long paper tubes need to be cut into standard paper tubes using a paper tube cutter. The cutting process primarily relies on a cutting mechanism to cut the paper tubes. However, traditional paper tube cutters on the market typically have only one cutter, cutting the paper tubes segment by segment with a single cutter. This results in low efficiency, and the cut length is also fixed, limiting flexibility. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a paper tube cutting mechanism capable of simultaneous multi-segment cutting, thereby solving the aforementioned technical problems.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides a technical solution: a paper tube cutting mechanism capable of simultaneous multi-segment cutting, characterized in that it includes: a drive structure disposed on a machine base, wherein the drive structure includes a drive shaft rotatably disposed for driving the paper tube to rotate; an adjustment structure disposed on the machine base, wherein the adjustment structure includes a first slide rail; a first cutter structure slidably disposed on the first slide rail of the adjustment structure, wherein the first cutter structure includes a first cutter for extending and retracting toward the drive shaft; a second cutter structure slidably disposed on the first slide rail of the adjustment structure, wherein the second cutter structure includes a second cutter for extending and retracting toward the drive shaft; and a third cutter structure slidably disposed on the first slide rail of the adjustment structure, wherein the third cutter structure includes a third cutter for extending and retracting toward the drive shaft.

[0008] Preferably, the drive structure further includes: a mounting plate, which is mounted on the machine base via a support rod, wherein one end of the drive shaft is rotatably mounted on the top surface of the mounting plate via a bearing, and the mounting plate is provided with a through hole; a drive motor, which is mounted on the bottom surface of the mounting plate, wherein a drive wheel is provided in the rotating shaft of the drive motor, one end of the drive shaft is provided with a driven wheel corresponding to the through hole, and a synchronous belt is provided around the drive wheel and the driven wheel, the synchronous belt passing through the through hole, so as to drive the drive shaft to rotate via the drive motor.

[0009] Preferably, the bearing includes a first bearing and a second bearing disposed at both ends of the top surface of the mounting plate, the through hole is disposed between the first bearing and the second bearing, and one end of the drive shaft passes through the first bearing and the second bearing.

[0010] Preferably, the adjustment structure further includes: a support plate, which is mounted on the machine base via a bracket, wherein the top surface of the support plate is provided with a second slide rail, and a moving block is slidably mounted in the second slide rail; a sliding seat, which is mounted on the moving block; and a connecting member, one end of which is provided on one side of the sliding seat, wherein a first slide rail is mounted on the connecting member, and the first slide rail and the second slide rail are arranged in parallel.

[0011] Preferably, the bottom surface of the support plate is provided with a first support portion and a second support portion at intervals, wherein a first lead screw is rotatably connected between the first support portion and the second support portion, a drive block is threadedly connected to the first lead screw, the drive block is connected to the sliding seat, so as to drive the sliding seat to move by rotating the first lead screw, and a first handle is provided at one end of the first lead screw.

[0012] Preferably, the sliding seat on the second slide rail is provided with a first threaded hole, and the sliding seat is provided with a first clamping adjustment handle that is threadedly connected to the first threaded hole. The connecting member is rectangular in shape, the connecting member is inclinedly disposed on the sliding seat, and the first slide rail is disposed at the top of the connecting member.

[0013] Preferably, the first cutter structure includes a first slider, a first mounting bracket, a first cutter, and a first drive cylinder, wherein the first slider is slidably disposed on the first slide rail, the first drive cylinder is disposed on the first slider, the first mounting bracket is fixedly disposed on the end of the telescopic rod of the first drive cylinder, and the first cutter is fixedly disposed on the first mounting bracket.

[0014] Preferably, the second cutter structure includes a second slider, a second mounting bracket, a second cutter, and a second drive cylinder, wherein the second slider is slidably disposed on the first slide rail, the second drive cylinder is disposed on the second slider, the second mounting bracket is fixedly disposed on the end of the telescopic rod of the second drive cylinder, and the second cutter is fixedly disposed on the second mounting bracket.

[0015] Preferably, the second cutter structure includes a third slider, a third mounting bracket, a third cutter, and a third drive cylinder, wherein the third slider is slidably disposed on the first slide rail, the third drive cylinder is disposed on the third slider, the third mounting bracket is fixedly disposed on the end of the telescopic rod of the third drive cylinder, and the third cutter is fixedly disposed on the third mounting bracket.

[0016] Preferably, the first slider has a second threaded hole corresponding to the first slide rail, the first slider has a second clamping adjustment handle threadedly connected to the second threaded hole, the second slider has a third threaded hole corresponding to the first slide rail, the second slider has a third clamping adjustment handle threadedly connected to the third threaded hole, the third slider has a fourth threaded hole corresponding to the first slide rail, and the third slider has a fourth clamping adjustment handle threadedly connected to the fourth threaded hole.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a paper tube cutting mechanism that can simultaneously cut multiple segments, which has the following advantages: This utility model passes the paper tube through the drive shaft, and drives the paper tube to rotate through the drive shaft. Then, the cutting structure located on one side of the drive shaft cuts the rotating paper tube. The distance between different cutting blades can also be adjusted, so that the cutting blades can divide the paper tube into multiple different sizes. During the cutting process, the single cutting blade or multiple cutting blades can be controlled to cut the paper tube at the same time according to actual needs. In this way, the paper tube can be divided into multiple segments of different sizes, thereby greatly improving work efficiency and flexibility. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the machine base of the paper tube cutting mechanism capable of simultaneous multi-segment cutting according to this utility model;

[0020] Figure 2 for Figure 1 A three-dimensional structural diagram of the paper tube cutting mechanism;

[0021] Figure 3 for Figure 2 A schematic diagram of the first structure of the adjustment mechanism and the cutter structure;

[0022] Figure 4 for Figure 2 A schematic diagram of the second structure of the adjustment mechanism and the cutter structure;

[0023] Figure 5 for Figure 2 Schematic diagram of the central adjustment mechanism;

[0024] Figure 6 for Figure 2 Schematic diagram of the middle connector;

[0025] Figure 7 This is a three-dimensional schematic diagram of the cutting blade structure. Detailed Implementation

[0026] 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.

[0027] like Figure 1-7 As shown, this utility model discloses a paper tube cutting mechanism capable of simultaneous multi-segment cutting, including a driving structure 1, an adjusting structure 2, a first cutting blade structure 3, a second cutting blade structure 4, and a third cutting blade structure 5.

[0028] The drive structure 1 is mounted on the machine base 6 (i.e., the main machine base of the paper tube cutter), and the drive structure 1 includes a drive shaft 14 that is rotatably configured to drive the paper tube 7 to rotate. It should be understood that during cutting, the operator manually or automatically inserts a paper tube of a relatively long size into the rotating shaft 14, and the rotation of the rotating shaft 14 can drive the paper tube to rotate (i.e., the outer diameter of the rotating shaft 14 is equal to the aperture of the paper tube).

[0029] The adjustment structure 2 is installed on the machine base 6, and the adjustment structure 2 includes a first slide rail 231.

[0030] The first cutting structure 3 is slidably disposed on the first slide rail 231 of the adjusting structure 2, wherein the first cutting structure 3 includes a first cutting blade 33 for extending and retracting toward the drive shaft 14.

[0031] The second cutter structure 4 is slidably mounted on the first slide rail 231 of the adjusting structure 2, wherein the second cutter structure 4 includes a second cutter for retracting or extending toward the drive shaft 14. It should be understood that the second cutter structure 4 is located on one side of the first cutter structure 3.

[0032] The third cutter structure 5 is slidably mounted on the first slide rail 231 of the adjusting structure 2, and the third cutter structure 5 includes a third cutter for extending and retracting toward the drive shaft 14. Of course, the third cutter structure 5 is located on one side of the second cutter structure 4.

[0033] Understandably, after the paper tube 7 is mounted on the drive shaft 14, the drive shaft 14 can be controlled to drive the paper tube 7 to rotate. The first cutter structure 3, the second cutter structure 4, and the third cutter structure 5 can then extend toward the drive shaft 14 to divide the rotating paper tube 7. At the same time, a single cutter structure or multiple cutter structures can be activated as needed to divide the paper tube 7 into single or multiple segments.

[0034] In this embodiment, the drive structure 1 further includes a mounting plate 11 and a drive motor 13. The mounting plate 11 is mounted on the machine base 6 by a support rod. One end of the drive shaft 14 is rotatably mounted on the top surface of the mounting plate 11 by a bearing 12. The mounting plate 11 is provided with a through hole 111. The drive motor 13 is located on the bottom surface of the mounting plate 11.

[0035] Furthermore, a drive wheel 131 is provided in the rotating shaft of the drive motor 13, and a driven wheel 141 corresponding to the through hole 111 is provided at one end of the drive shaft 14. A synchronous belt 15 is arranged around the drive wheel 131 and the driven wheel 141. The synchronous belt 15 passes through the through hole 111 so that the drive motor 13 drives the drive wheel 131 to rotate, thereby driving the driven wheel 141 to rotate through the synchronous belt 15, and then driving the drive shaft 14 to rotate.

[0036] Preferably, the bearing 12 includes a first bearing and a second bearing disposed at both ends of the top surface of the mounting plate 11, wherein a through hole 111 is disposed between the first bearing and the second bearing, and one end of the drive shaft 14 passes through the first bearing and the second bearing. It should be understood that when the drive shaft 14 rotates via the drive motor 13, the bearing 12 assists in the rotation of the drive shaft 14, making the rotation of the drive shaft 14 smoother, thereby preventing the paper tube 7 from experiencing inconsistent cutting dimensions due to misalignment during the cutting process.

[0037] In this embodiment, the adjustment structure 2 further includes a support plate 21, a sliding seat 22, and a connecting member 23. The support plate 21 is mounted on the machine base 6 via a bracket. A second slide rail 211 is provided on the top surface of the support plate 21. A moving block 2111 is slidably disposed in the second slide rail 211. The sliding seat 22 is disposed on the moving block 2111. One end of the connecting member 23 is disposed on one side of the sliding seat 22, and a first slide rail 231 is disposed on the connecting member 23. The first slide rail 231 and the second slide rail 211 are arranged in parallel. It should be understood that no matter how the cutter structure slides on the first slide rail 231, the distance between the cutter structure and the paper tube 7 on the drive shaft 14 will not change. The movement of the first cutter structure 3, the second cutter structure 4, and the third cutter structure 5 on the first slide rail 231 is to change the length of the paper tube being cut.

[0038] Furthermore, the bottom surface of the support plate 21 is provided with a first support portion and a second support portion at intervals. A first lead screw 212 is rotatably connected between the first support portion and the second support portion. A drive block 2121 is threadedly connected to the first lead screw 212. The drive block 2121 is connected to the sliding seat 22 so that the sliding seat 22 can be moved by rotating the first lead screw 212. A first handle 2122 is provided at one end of the first lead screw 212 so that the first lead screw 212 can be rotated by manually holding the first handle 2122.

[0039] Preferably, the support plate 21 is also provided with a slot 24. It should be understood that rotating the first handle 2122 can cause the sliding seat 22 to slide on the second slide rail 211 via the moving block 2111 connected to the bottom of the sliding seat 22, while the driving block 2121 is limited in the slot 24 (the driving block 2121 passes through the slot 24 and is connected to the sliding seat 22).

[0040] Furthermore, the sliding seat 22 on the second slide rail 211 is provided with a first threaded hole, and the sliding seat 22 is provided with a first pressing adjustment handle 221 that is threadedly connected to the first threaded hole. It should be understood that after the sliding seat 22 moves to a position suitable for the cutter structure to cut the paper tube 7, the first pressing adjustment handle 221 can be rotated to press down and abut against the second slide rail 211, preventing the sliding seat 22 from sliding further, thus stopping the sliding seat 22 at this position. When it is necessary to adjust the position again, the first pressing adjustment handle 221 can be reversed so that the bottom end of the first pressing adjustment handle 221 leaves the second slide rail 211, allowing the sliding seat 22 to slide on the second slide rail 211 again.

[0041] Preferably, the connector 23 is rectangular in shape and is obliquely disposed on the sliding seat 22, with the first slide rail 231 disposed at the top of the connector 23. It should be understood that the connector 23 is specifically composed of a connecting rod 232, two connecting plates 233, and the first slide rail 231, and the connector 23 is connected to the sliding seat 22 through the connecting rod 232.

[0042] In this embodiment, the first cutter structure 3 includes a first slider 31, a first mounting bracket 32, a first cutter 33, and a first drive cylinder 34. The first slider 31 is slidably mounted on the first slide rail 231, the first drive cylinder 34 is mounted on the first slider 31, the first mounting bracket 32 ​​is fixedly mounted on the end of the telescopic rod of the first drive cylinder 34, and the first cutter 33 is fixedly mounted on the first mounting bracket 32. It should be understood that the specific position of the first cutter structure 3 can be adjusted by the first slider 31 on the first slide rail 231, and the first cutter 33 can be used to cut the paper tube 7 by extending the telescopic rod of the first drive cylinder 34, and can be retracted after cutting.

[0043] In this embodiment, the second cutter structure 4 includes a second slider 41, a second mounting bracket 42, a second cutter 43, and a second drive cylinder 44. The second slider 41 is slidably mounted on the first slide rail 231, the second drive cylinder 44 is mounted on the second slider 41, the second mounting bracket 42 is fixedly mounted on the end of the telescopic rod of the second drive cylinder 44, and the second cutter 43 is fixedly mounted on the second mounting bracket 42. It should be understood that the specific position of the second cutter structure 4 can be adjusted by the second slider 41 on the first slide rail 231, and the second cutter 43 can be used to cut the paper tube 7 by extending the telescopic rod of the second drive cylinder 44, and can be retracted after cutting.

[0044] In this embodiment, the third cutter structure 5 includes a third slider 51, a third mounting bracket 52, a third cutter 53, and a third drive cylinder 54. The third slider 51 is slidably mounted on the first slide rail 231, the third drive cylinder 54 is mounted on the third slider 51, the third mounting bracket 52 is fixedly mounted on the end of the telescopic rod of the third drive cylinder 54, and the third cutter 53 is fixedly mounted on the third mounting bracket 52. It should be understood that the specific position of the third cutter structure 5 can be adjusted by the third slider 51 on the first slide rail 231, and the third cutter 53 can be used to cut the paper tube 7 by extending the telescopic rod of the third drive cylinder 54, and can be retracted after cutting.

[0045] It is understandable that the positions of the first cutting structure 3, the second cutting structure 4, and the third cutting structure 5 on the first slide rail 231 can be adjusted according to the size standard that the paper tube 7 needs to be cut, so that the cutting structure can cut out multiple sections of the paper tube 7.

[0046] Furthermore, the first slider 31 is provided with a second threaded hole corresponding to the first slide rail 231, and a second clamping adjustment handle 35 threadedly connected to the second threaded hole. The second slider 41 is provided with a third threaded hole corresponding to the first slide rail 231, and a third clamping adjustment handle 45 threadedly connected to the third threaded hole. The third slider 51 is provided with a fourth threaded hole corresponding to the first slide rail 231, and a fourth clamping adjustment handle 55 threadedly connected to the fourth threaded hole. It should be understood that after the first cutter structure 3, the second cutter structure 4, and the third cutter structure 5 are adjusted to the appropriate position, the cutter structure can be limited by rotating the second clamping adjustment handle 35, the third clamping adjustment handle 45, and the fourth clamping adjustment handle 55 to press against the first slide rail 231, thereby stopping the cutter structure at this position to cut the paper tube 7.

[0047] Specific working principle:

[0048] The paper tube 7 is mounted on the drive shaft 14. The positions of the first cutter structure 3, the second cutter structure 4, and the third cutter structure 5 on the first slide rail 231 are adjusted according to the required cutting size of the paper tube 7. At this time, the drive motor 13's driving wheel 131 is activated, causing the driven wheel 141 to rotate via the synchronous belt 15. The extension rods of the drive cylinders of the first cutter structure 3, the second cutter structure 4, and the third cutter structure 5 also extend (the extension rods of the drive cylinders can be controlled individually or in multiple ways). The cutter will then cut towards the rotating paper tube 7 (the cutter itself remains stationary). Of course, in... When multiple sizes of paper tubes 7 need to be cut, the spacing between the multiple cutters can be adjusted (for example, the distance between the third cutter structure 5 and one end of the paper tube 7 can be set to 20cm, and the distance between the first cutter structure 3 and the second cutter structure 4 can be set to 40cm. In this way, during the operation of the three cutter structures, the third cutter structure 5 can cut a 20cm section of paper tube, and the first cutter structure 3 and the second cutter structure 4 can cut a 40cm section of paper tube at the same time). This allows for the simultaneous cutting of paper tubes 7 of different sizes, significantly improving the cutting efficiency of the paper tubes.

[0049] In addition, the bearing 12, drive motor 13, drive shaft 14, first drive cylinder 34, second drive cylinder 44 and third drive cylinder 54 in this application can all be implemented using products in the prior art, and their principles and structures will not be described in detail here.

[0050] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0051] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper tube cutting mechanism capable of simultaneous multi-segment cutting, characterized in that, include: A drive structure is mounted on the machine base, wherein the drive structure includes a drive shaft that is rotatably configured to drive the paper tube to rotate; An adjustment structure is provided on the machine base, wherein the adjustment structure includes a first slide rail; The first cutting structure is slidably disposed on the first slide rail of the adjustment structure, wherein the first cutting structure includes a first cutting blade for extending and retracting toward the drive shaft; The second cutting structure is slidably disposed on the first slide rail of the adjustment structure, wherein the second cutting structure includes a second cutting blade for extending and retracting toward the drive shaft; The third cutter structure is slidably disposed on the first slide rail of the adjustment structure, wherein the third cutter structure includes a third cutter for extending and retracting toward the drive shaft.

2. The paper tube cutting mechanism according to claim 1, characterized in that, The driving structure also includes: A mounting plate is mounted on the machine base via a support rod, wherein one end of the drive shaft is rotatably mounted on the top surface of the mounting plate via a bearing, and the mounting plate is provided with a through hole; A drive motor is provided on the bottom surface of the mounting plate. A drive wheel is provided in the rotating shaft of the drive motor. A driven wheel corresponding to the through hole is provided at one end of the drive shaft. A synchronous belt is provided around the drive wheel and the driven wheel. The synchronous belt passes through the through hole so as to drive the drive shaft to rotate through the drive motor.

3. The paper tube cutting mechanism according to claim 2, characterized in that, The bearing includes a first bearing and a second bearing disposed at both ends of the top surface of the mounting plate, the through hole being disposed between the first bearing and the second bearing, and one end of the drive shaft passing through the first bearing and the second bearing.

4. The paper tube cutting mechanism according to claim 1, characterized in that, The adjustment structure also includes: A support plate is mounted on the machine base via a bracket, wherein the top surface of the support plate is provided with a second slide rail, and a moving block is slidably disposed in the second slide rail; A sliding seat is provided on the movable block; A connector, one end of which is provided with one side of the sliding seat, wherein the first slide rail is provided on the connector and the first slide rail and the second slide rail are arranged in parallel.

5. The paper tube cutting mechanism according to claim 4, characterized in that, The bottom surface of the support plate is provided with a first support portion and a second support portion at intervals. A first lead screw is rotatably connected between the first support portion and the second support portion. A drive block is threadedly connected to the first lead screw. The drive block is connected to the sliding seat so that the sliding seat can be moved by rotating the first lead screw. A first handle is provided at one end of the first lead screw.

6. The paper tube cutting mechanism according to claim 5, characterized in that, The sliding seat on the second slide rail is provided with a first threaded hole, and the sliding seat is provided with a first clamping adjustment handle that is threadedly connected to the first threaded hole. The connecting member is rectangular in shape and is inclinedly disposed on the sliding seat. The first slide rail is disposed at the top of the connecting member.

7. The paper tube cutting mechanism according to claim 6, characterized in that, The first cutter structure includes a first slider, a first mounting bracket, a first cutter, and a first drive cylinder. The first slider is slidably disposed on the first slide rail, the first drive cylinder is disposed on the first slider, the first mounting bracket is fixedly disposed at the end of the telescopic rod of the first drive cylinder, and the first cutter is fixedly disposed on the first mounting bracket.

8. The paper tube cutting mechanism according to claim 7, characterized in that, The second cutter structure includes a second slider, a second mounting bracket, a second cutter, and a second drive cylinder. The second slider is slidably mounted on the first slide rail, the second drive cylinder is mounted on the second slider, the second mounting bracket is fixedly mounted on the end of the telescopic rod of the second drive cylinder, and the second cutter is fixedly mounted on the second mounting bracket.

9. The paper tube cutting mechanism according to claim 8, characterized in that, The second cutter structure includes a third slider, a third mounting bracket, a third cutter, and a third drive cylinder. The third slider is slidably mounted on the first slide rail, the third drive cylinder is mounted on the third slider, the third mounting bracket is fixedly mounted on the end of the telescopic rod of the third drive cylinder, and the third cutter is fixedly mounted on the third mounting bracket.

10. The paper tube cutting mechanism according to claim 9, characterized in that, The first slider has a second threaded hole corresponding to the first slide rail, and a second clamping adjustment handle that is threadedly connected to the second threaded hole. The second slider has a third threaded hole corresponding to the first slide rail, and a third clamping adjustment handle that is threadedly connected to the third threaded hole. The third slider has a fourth threaded hole corresponding to the first slide rail, and a fourth clamping adjustment handle that is threadedly connected to the fourth threaded hole.