A tensioning mechanism for an automatic pipe cutting machine

By designing a fixing ring, a first tube support, and a second tube support tensioning mechanism on the automatic tube cutter, and using an electric cylinder and clamping blocks to clamp and fix the paper tube in both directions, the stability problem during paper tube cutting is solved, achieving stable cutting and convenient material discharge.

CN224407805UActive Publication Date: 2026-06-26TAIZHOU XINLI MASCH MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TAIZHOU XINLI MASCH MFG CO LTD
Filing Date
2025-07-08
Publication Date
2026-06-26

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Abstract

The utility model relates to automatic pipe cutting machine field especially, and more particularly to a kind of automatic pipe cutting machine's tensioning mechanism, technical solution: a kind of automatic pipe cutting machine's tensioning mechanism, including automatic pipe cutting machine, fixed ring, first pipe rack and second pipe rack, the right end of fixed ring is fixedly connected with the equidistant distribution of three groups of mounting brackets around fixed ring outer wall, first electric cylinder is fixedly connected in mounting bracket, first electric cylinder's output end is fixedly connected with first clamping block, rotating groove is opened in the upper and lower ends of first pipe rack, the utility model can be respectively driven three groups of first clamping block and second clamping block by first electric cylinder and the second electric cylinder of second group, and the left and right ends outer wall of paper tube main body on the right end paper tube rack of rotary disc are clamped and fixed, to reduce the stability of paper tube main body when being cut structure cutting processing, solve the stability of the tensioning mechanism of existing automatic pipe cutting machine when cutting processing paper tube is poor, thereby influence paper tube's cutting effect problem.
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Description

Technical Field

[0001] This utility model belongs to the field of automatic pipe cutting machines, and specifically relates to a tensioning mechanism for an automatic pipe cutting machine. Background Technology

[0002] Automatic pipe cutting machines are highly efficient pipe cutting equipment, widely used for cutting various pipe materials such as metal, plastic, steel, and copper pipes. They can automatically complete the entire process from feeding, positioning, cutting to discharging, greatly improving production efficiency and reducing labor costs.

[0003] Existing automatic tube cutting machines often require a tensioning mechanism to limit the paper tube during cutting to reduce the impact of vibration on the cutting effect. However, traditional limiting and tensioning mechanisms are mostly single-direction auxiliary structures. In actual use, limiting only the tail or head of the paper tube is not effective. The unlimited end is still easily affected by vibration during cutting, resulting in poor paper tube cutting effect.

[0004] Therefore, in view of the problems of poor stability of the tensioning mechanism of the existing automatic tube cutter when cutting paper tubes and the inconvenience of discharging the cut paper tubes, a tensioning mechanism for the automatic tube cutter is developed. By adding a tube body head and tail clamping and fixing structure and an auxiliary discharge structure to the automatic tube cutter, the stability of the automatic tube cutter when cutting paper tubes can be effectively improved. Utility Model Content

[0005] In order to overcome the problem that the tensioning mechanism of the existing automatic tube cutting machine is not stable when cutting paper tubes, thus affecting the cutting effect of paper tubes.

[0006] The technical solution of this utility model is as follows: a tensioning mechanism for an automatic pipe cutting machine, comprising an automatic pipe cutting machine, a fixing ring, a first pipe support, and a second pipe support. Three sets of mounting brackets, evenly distributed around the outer wall of the fixing ring, are fixedly connected to the right end of the fixing ring. A first electric cylinder is fixedly connected inside each mounting bracket, and a first clamping block is fixedly connected to the output end of the first electric cylinder. Rotating grooves are formed through the upper and lower ends of the first pipe support, and electric rollers are installed on the inner walls of the rotating grooves. Mounting grooves are formed through the upper and lower ends of the second pipe support, and second electric rollers are fixedly connected to the inner walls of the mounting grooves. The automatic pipe cutting machine includes a pipe cutting machine housing, a cutting structure, and a CNC module. The upper end of the pipe cutting machine housing is equipped with a CNC module and a servo displacement structure. The CNC module contains a drive motor, and a rotary disk is installed on the output end of the drive motor. The cutting structure is mounted on the servo displacement structure, and a fixing ring is fixed to the right end of the rotary disk. The first pipe support and the second pipe support are fixed to the left and right ends of the cutting structure, respectively. A paper tube support is installed at the center of the right end of the rotary disk, and a paper tube body is fitted on the paper tube support.

[0007] Preferably, a support frame symmetrically distributed front and back is fixed to the right edge of the pipe cutting machine casing, and a limit frame is fixed to the upper end of the support frame, with a receiving box installed inside the limit frame.

[0008] Preferably, the right ends of the paper tube holder and the paper tube body pass through the inner walls of the first and second tube holders, and the centers of the first and second tube holders correspond one-to-one with the center of the rotating disk.

[0009] Preferably, the left end of the first clamping block is fixedly connected to a limiting sliding sleeve, and the right end of the rotating disk is provided with three sets of limiting grooves equidistantly distributed around the outer wall of the rotating disk, with guide rails fixedly connected in the limiting grooves.

[0010] Preferably, the outer wall of the limiting sliding sleeve is fitted with the inner wall of the limiting groove, and the inner wall of the limiting sliding sleeve is fitted with the outer wall of the guide rail.

[0011] Preferably, the left end of the second tube rack is fixed with symmetrically distributed limiting tube frames, the left end of the second clamping block is fixed with an extension frame, the upper end of the extension frame is fixed with a limiting rod, and the outer wall of the limiting rod is in contact with the inner wall of the limiting tube frame.

[0012] Preferably, the ends of the first and second clamping blocks closest to the paper tube body are in contact with the outer wall of the paper tube body, the outer wall of the electric roller shaft is in contact with the outer wall of the paper tube body, and the cutting structure is a saw blade cutting type.

[0013] The beneficial effects of this utility model are:

[0014] 1. Three sets of first electric cylinders can drive three sets of first clamping blocks to clamp and fix the outer wall of the left end of the paper tube body mounted on the right end of the rotary disk paper tube frame, so as to reduce the stability of the paper tube body during the cutting process of the cut structure.

[0015] 2. The second electric cylinder on the second tube rack can drive the second clamping block to clamp and fix the outer wall of the right end of the paper tube body on the right end of the paper tube rack of the rotary disk, thereby further reducing the stability of the paper tube body when it is being cut.

[0016] 3. The two sets of electric rollers on the first tube rack can feed the main body of the paper tube cut by the cutting structure to the right, so that the subsequent operators can collect the cut paper tube body. Attached Figure Description

[0017] Figure 1 The diagram shown is a three-dimensional structural schematic of the tensioning mechanism of the automatic pipe cutting machine of this utility model.

[0018] Figure 2 The diagram shown is a three-dimensional disassembled view of the tensioning mechanism of the automatic pipe cutting machine of this utility model.

[0019] Figure 3 The diagram shown is a three-dimensional disassembled view of the tensioning mechanism of the automatic pipe cutting machine of this utility model, including the pipe cutting machine housing, support frame, receiving box and limiting frame.

[0020] Figure 4 The diagram shows a three-dimensional disassembled view of the CNC module, rotating disk, paper tube body, fixing ring, first electric cylinder and first clamping block of the tensioning mechanism of the automatic tube cutting machine of this utility model.

[0021] Figure 5 The diagram shown is a three-dimensional structural schematic of the cutting structure of the tensioning mechanism of the automatic pipe cutting machine of this utility model.

[0022] Figure 6 The diagram shown is a three-dimensional disassembled view of the first pipe support and electric roller shaft of the tensioning mechanism of the automatic pipe cutting machine of this utility model.

[0023] Figure 7 The diagram shows a three-dimensional structural schematic of the second pipe support, the second electric cylinder, and the second clamping block of the tensioning mechanism of the automatic pipe cutting machine of this utility model.

[0024] Explanation of reference numerals in the attached drawings: 1-Pipe cutting machine housing, 2-Cutting structure, 3-CNC module, 4-Limiting frame, 5-Receiving box, 6-Support frame, 7-Rotating disk, 8-Paper tube body, 9-Limiting groove, 10-Guide rail, 11-Mounting frame, 12-Fixing ring, 13-First electric cylinder, 14-First clamping block, 15-Limiting sliding sleeve, 16-First tube rack, 17-Rotating groove, 18-Electric roller, 19-Second tube rack, 20-Mounting groove, 21-Limiting sleeve frame, 22-Second clamping block, 23-Second electric cylinder, 24-Limiting rod, 25-Extension frame. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Please see Figures 1-7 This utility model provides an embodiment of a tensioning mechanism for an automatic pipe cutter, comprising an automatic pipe cutter, a fixing ring 12, a first pipe support 16, and a second pipe support 19. Three sets of mounting brackets 11, equidistantly distributed around the outer wall of the fixing ring 12, are fixedly connected to the right end of the fixing ring 12. A first electric cylinder 13 is fixedly connected inside the mounting bracket 11, and a first clamping block 14 is fixedly connected to the output end of the first electric cylinder 13. Rotating grooves 17 are formed through the upper and lower ends of the first pipe support 16, and an electric roller 18 is installed on the inner wall of the rotating groove 17. Mounting grooves 20 are formed through the upper and lower ends of the second pipe support 19, and the inner wall of the mounting groove 20... A second electric cylinder 23 is fixedly connected, and a second clamping block 22 is fixedly connected to the output end of the second electric cylinder 23. The automatic pipe cutting machine includes a pipe cutting machine box 1, a cutting structure 2, and a CNC module 3. The CNC module 3 and a servo displacement structure are installed on the upper end of the pipe cutting machine box 1. A drive motor is installed inside the CNC module 3, and a rotary disk 7 is installed on the output end of the drive motor. The cutting structure 2 is installed on the servo displacement structure. A fixing ring 12 is fixedly connected to the right end of the rotary disk 7. The first pipe support 16 and the second pipe support 19 are respectively fixedly connected to the left and right ends of the cutting structure 2. A paper tube support is installed at the center of the right end of the rotary disk 7, and a paper tube body 8 is fitted on the paper tube support.

[0027] The three sets of first electric cylinders 13 on the fixing ring 12 can drive the three sets of first clamping blocks 14 to clamp and fix the outer wall of the left end of the paper tube body 8 mounted on the right end of the rotating disk 7, so as to reduce the stability of the paper tube body 8 during the cutting process of the cutting structure 2. The two sets of electric rollers 18 on the first tube frame 16 can send the part of the paper tube body 8 cut by the cutting structure 2 to the right, so that the subsequent operators can collect the cut paper tube body 8. Then, the second electric cylinder 23 on the second tube frame 19 can drive the second clamping block 22 to clamp and fix the outer wall of the right end of the paper tube body 8 on the right end of the rotating disk 7, thereby further reducing the stability of the paper tube body 8 during the cutting process.

[0028] Please see Figure 3 In this embodiment, a support frame 6 symmetrically distributed front and back is fixed to the right edge of the tube cutting machine box 1. A limiting frame 4 is fixed to the upper end of the support frame 6. A receiving box 5 is provided inside the limiting frame 4. In use, the receiving box 5 can collect and store the cut paper tube body 8 for subsequent use by the user.

[0029] Please see Figures 4-7In this embodiment, the right ends of the paper tube holder and the paper tube body 8 pass through the inner walls of the first tube holder 16 and the second tube holder 19. The first tube holder 16 and the second tube holder 19 correspond one-to-one with the center of the rotating disk 7. In use, the one-to-one correspondence between the first tube holder 16 and the second tube holder 19 and the rotating disk 7 can ensure that the first clamping block 14 and the second clamping block 22 on the first tube holder 16 and the second tube holder 19 tightly clamp and fit the paper tube body 8 on the rotating disk 7. The end of the first clamping block 14 and the second clamping block 22 near the paper tube body 8 is in contact with the outer wall of the paper tube body 8. The outer wall of the electric roller shaft 18 is in contact with the outer wall of the paper tube body 8. The cutting structure 2 is a saw blade cutting type. In use, the saw blade cutting structure 2 can cut and process the paper tube body 8 on the paper tube holder at the right end of the rotating disk 7.

[0030] Please see Figures 4-6 In this embodiment, the left end of the first clamping block 14 is fixedly connected to a limiting sliding sleeve 15, and the right end of the rotating disk 7 is provided with three sets of limiting grooves 9 equidistantly distributed around the outer wall of the rotating disk 7. A guide rail 10 is fixedly connected in the limiting groove 9. In use, the three sets of first clamping blocks 14 can perform triangular stable clamping and fixing of the outer wall of the paper tube body 8. The outer wall of the limiting sliding sleeve 15 is in contact with the inner wall of the limiting groove 9, and the inner wall of the limiting sliding sleeve 15 is in contact with the outer wall of the guide rail 10. In use, the matching limiting groove 9 and guide rail 10 can provide double limiting assistance for the limiting sliding sleeve 15 to improve the stability of the first clamping block 14 when clamping and fixing the paper tube body 8.

[0031] Please see Figure 7 In this embodiment, the left end of the second tube frame 19 is fixed with a limiting tube frame 21 symmetrically distributed front and rear, and the left end of the second clamping block 22 is fixed with an extension frame 25. The upper end of the extension frame 25 is fixed with a limiting rod 24. The outer wall of the limiting rod 24 fits against the inner wall of the limiting tube frame 21. In use, the matching limiting tube frame 21 can provide limiting assistance to the second clamping block 22 driven by the second electric cylinder 23, so as to improve the stability of the second clamping block 22 in clamping and fixing the paper tube body 8.

[0032] Before use, first pass the left end of the paper tube body 8 through the inner wall of the first tube frame 16 and the second tube frame 19 and fit it onto the paper tube frame on the right end of the rotating disk 7.

[0033] Next, the three sets of first electric cylinders 13 are activated, and the three sets of first clamping blocks 14 and limiting sliding sleeves 15 are driven by the three sets of first electric cylinders 13 to approach the left outer wall of the paper tube body 8 along the inner wall of the limiting groove 9 and the outer wall of the guide rail 10, so as to clamp and position the left outer wall of the paper tube body 8.

[0034] Then, the servo displacement structure on the tube cutting machine box 1 drives the adjustment cutting structure 2, the first tube rack 16 and the second tube rack 19 to a suitable cutting position. Then, the two sets of second electric cylinders 23 are started. The two sets of second electric cylinders 23 drive the second clamping block 22 and the limiting rod 24 to move along the inner wall of the limiting cylinder 21 to the outer wall of the right end of the paper tube body 8 that needs to be cut, thereby clamping and positioning the cutting right end of the paper tube body 8.

[0035] Finally, the CNC module 3 is started, and the drive motor in the CNC module 3 drives the rotary disk 7, paper tube holder and paper tube body 8 to rotate. At the same time, the three sets of first clamping blocks 14 that clamp and fix the outer wall of the left end of the paper tube body 8 also rotate with the paper tube body 8. Then the cutting structure 2 is started, and the cutting structure 2 performs a ring cut on the rotating paper tube body 8.

[0036] During discharge, two sets of electric rollers 18 rotate to drive the paper tube body 8 section cut by the cutting structure 2 to be sent to the right, so that the cut paper tube body 8 section can be sent into the receiving box 5.

[0037] Through the above steps, the first electric cylinder 13 and the second set of second electric cylinders 23 can respectively drive the three sets of first clamping blocks 14 and second clamping blocks 22 to clamp and fix the outer walls of the left and right ends of the paper tube body 8 mounted on the right end of the rotating disk 7, so as to reduce the stability of the paper tube body 8 during the cutting process of the cutting structure 2, and solve the problem that the tensioning mechanism of the existing automatic tube cutting machine has poor stability when cutting paper tubes, thus affecting the cutting effect of paper tubes.

[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A tensioning mechanism for an automatic pipe cutter, comprising an automatic pipe cutter, characterized in that: It also includes a fixing ring (12), a first tube frame (16), and a second tube frame (19). The right end of the fixing ring (12) is fixed with three sets of mounting brackets (11) equidistantly distributed around the outer wall of the fixing ring (12). A first electric cylinder (13) is fixed inside the mounting bracket (11). A first clamping block (14) is fixed to the output end of the first electric cylinder (13). The upper and lower ends of the first tube frame (16) are provided with rotating grooves (17). An electric roller (18) is installed on the inner wall of the rotating groove (17). The upper and lower ends of the second tube frame (19) are provided with mounting grooves (20). A second electric cylinder (23) is fixed to the inner wall of the mounting groove (20). The output end of 23) is fixed with a second clamping block (22). The automatic pipe cutting machine includes a pipe cutting machine box (1), a cutting structure (2) and a CNC module (3). The upper end of the pipe cutting machine box (1) is equipped with a CNC module (3) and a servo displacement structure. The CNC module (3) is equipped with a drive motor. The output end of the drive motor is equipped with a rotary disk (7). The cutting structure (2) is installed on the servo displacement structure. The fixing ring (12) is fixed to the right end of the rotary disk (7). The first pipe rack (16) and the second pipe rack (19) are fixed to the left and right ends of the cutting structure (2) respectively. The center of the right end of the rotary disk (7) is equipped with a paper tube rack. The paper tube body (8) is fitted on the paper tube rack.

2. The tensioning mechanism of the automatic pipe cutting machine according to claim 1, characterized in that: The right edge of the pipe cutting machine box (1) is fixed with a support frame (6) that is symmetrically distributed front and back. The upper end of the support frame (6) is fixed with a limiting frame (4). A receiving box (5) is set inside the limiting frame (4).

3. The tensioning mechanism of the automatic pipe cutting machine according to claim 1, characterized in that: The right end of the paper tube frame and the paper tube body (8) passes through the inner wall of the first tube frame (16) and the second tube frame (19), and the center of the first tube frame (16), the second tube frame (19) and the rotating disk (7) correspond one-to-one.

4. The tensioning mechanism of the automatic pipe cutting machine according to claim 1, characterized in that: The left end of the first clamping block (14) is fixedly connected to a limiting sliding sleeve (15), and the right end of the rotating disk (7) is provided with three sets of limiting grooves (9) that are equidistantly distributed around the outer wall of the rotating disk (7). A guide rail (10) is fixedly connected in the limiting groove (9).

5. The tensioning mechanism of the automatic pipe cutting machine according to claim 4, characterized in that: The outer wall of the limiting sliding sleeve (15) is in contact with the inner wall of the limiting groove (9), and the inner wall of the limiting sliding sleeve (15) is in contact with the outer wall of the guide rail (10).

6. The tensioning mechanism of the automatic pipe cutting machine according to claim 5, characterized in that: The left end of the second tube rack (19) is fixed with a symmetrically distributed limiting tube rack (21), and the left end of the second clamping block (22) is fixed with an extension frame (25). The upper end of the extension frame (25) is fixed with a limiting rod (24), and the outer wall of the limiting rod (24) is in contact with the inner wall of the limiting tube rack (21).

7. The tensioning mechanism of the automatic pipe cutting machine according to claim 1, characterized in that: The first clamping block (14) and the second clamping block (22) are close to the outer wall of the paper tube body (8) at one end, and the outer wall of the electric roller (18) is close to the outer wall of the paper tube body (8). The cutting structure (2) is a saw blade cutting type.