Pipe cutting machine

Abstract

The utility model relates to the technical field of heat shrink tube manufacturing, and provides a tube cutting machine which comprises a rack, a limiting piece, a fixing assembly, a tube feeding assembly and a cutting assembly. The limiting pieces extend in the length direction of the pipe, the multiple limiting pieces are arranged, and the position between every two adjacent limiting pieces is used for allowing the pipe to pass through; the fixing assembly comprises a connecting piece and a plurality of abutting pieces in threaded connection with the connecting piece, the connecting piece is connected to the rack, the abutting pieces correspond to the limiting pieces one to one, and the abutting pieces are used for abutting against the limiting pieces; the pipe conveying assembly is used for driving the pipes to move in the direction of the cutting assembly, and the cutting assembly is used for cutting the pipes conveyed out between the adjacent limiting pieces. The pipe cutting machine has the effect that the pipe cutting machine is suitable for heat shrink pipes of multiple sizes.

Description

Technical Field

[0001] The present application relates to the field of heat shrink tube manufacturing technology, and in particular to a tube cutting machine. Background Art

[0002] Heat shrink tubing is a specific type of polyolefin heat shrink tubing. The outer layer is made of high-quality soft cross-linked polyolefin material and the inner layer is made of hot melt adhesive. The outer layer material has the characteristics of insulation, corrosion resistance, and wear resistance, and the inner layer has the advantages of low melting point, waterproof sealing, and high adhesion. Therefore, it has a wide range of applications, including the protection of ignition heads of electronic ignition components.

[0003] The required length of the heat shrink tube varies according to the size of the ignition head to be protected, so the heat shrink tube needs to be cut into different lengths according to the requirements. Most existing tube cutting machines for cutting heat shrink tubes only cut heat shrink tubes of a single diameter, which is relatively limited in use. Utility Model Content

[0004] In order to make the tube cutting machine suitable for heat shrink tubes of various sizes, the present application provides a tube cutting machine.

[0005] The pipe cutting machine provided in this application adopts the following technical solution:

[0006] A pipe cutting machine comprises a frame, a limit piece, a fixing assembly, a pipe feeding assembly and a cutting assembly; the limit piece is extended along the length direction of the pipe, and there are a plurality of limit pieces, and the pipe is passed through between adjacent limit pieces; the fixing assembly comprises a connecting piece and a plurality of abutting pieces threadedly connected to the connecting piece, and the connecting piece is connected to the frame, and the plurality of abutting pieces correspond one to one with the plurality of limit pieces, and the abutting pieces are used to abut against the limit pieces; the pipe feeding assembly is used to drive the pipe to move in the direction of the cutting assembly, and the cutting assembly is used to cut the pipe fed from between the adjacent limit pieces.

[0007] By adopting the above technical solution, when cutting the pipe, first place the pipe between adjacent limiters, and then use the pipe delivery assembly to send the pipe to the cutting assembly for segmentation. Under normal circumstances, the abutment thread is connected to the connector and the end is tightly against the limiter, so that the limiter is tightly against the frame, and the frame and the abutment clamp the limiter to limit the limiter. When it is necessary to cut pipes of different diameters, twist the abutment to release the limiter, adjust the distance between adjacent limiters to adapt to the new pipe diameter, and after the adjustment is completed, retighten the abutment.

[0008] Optionally, the pipe delivery assembly includes a pressure roller, a first driving member and an erection rod, the pressure roller is rotatably connected to the frame, and the pressure roller is used to drive the pipe to move; the first driving member is connected to the frame, and the first driving member is used to drive the pressure roller to rotate relative to the frame; the erection rod is connected to the frame, and the erection rod is used to erect the rolled pipe.

[0009] By adopting the above technical solution, when the pipe cutting machine is working, the rolled pipe is mounted on the mounting rod, and the free end of the pipe is passed through the space between the pressure roller and the frame, so that the pipe is in contact with the pressure roller; then the first driving member is started, and the pressure roller is driven to rotate by the first driving member. During the rotation of the pressure roller, the friction between the pressure roller and the pipe is used to drive the pipe to rotate.

[0010] Optionally, the pressure roller is slidably connected to the frame along the height direction of the frame; the frame is provided with a clamping assembly, and the clamping assembly is used to fix the pressure roller to the frame after the pressure roller moves relative to the frame.

[0011] By adopting the above technical solution, the distance between the pressing roller and the frame is adjustable. Therefore, when cutting pipes of different diameters, the relative distance between the pressing roller and the frame is adjusted to ensure that the pressing roller effectively drives the pipe to move while having appropriate pressure on the pipe.

[0012] Optionally, the clamping assembly includes a clamping piece and a supporting spring, the clamping piece is threadedly connected to the frame along the height direction of the frame, and the end of the clamping piece is used for abutting the end of the roller shaft of the pressure roller; one end of the support spring abuts against the roller shaft of the pressure roller, and the other end abuts against the frame.

[0013] By adopting the above technical solution, the pressure roller is clamped by the clamping member and the supporting spring. When the position of the pressure roller needs to be adjusted, the clamping member is screwed to adjust the relative position of the clamping member and the frame.

[0014] Optionally, the end of the roller shaft of the pressure roller is connected to a hand piece, and the middle part of the hand piece is hinged to the frame.

[0015] By adopting the above technical solution, when the frame is in the pressure roller position or the pressure roller fails, the clamping piece is unscrewed from the frame, and the hand piece is rotated relative to the frame. The end of the hand piece connected to the pressure roller drives the pressure roller to move upward to provide maintenance space for easy maintenance.

[0016] Optionally, the cutting assembly includes a first cutter, a second cutter and a second driving member, the first cutter is rigidly connected to the frame, the second cutter is slidably connected to the frame along the height direction of the frame, and the first cutter and the second cutter cooperate to shear the pipe; the second driving member is connected to the frame, and the second driving member is used to drive the second cutter to move.

[0017] By adopting the above technical solution, when cutting the pipe, the second driving member is started, and the second driving member is used to drive the second cutter to move back and forth in a direction close to or away from the first cutter, so that the first cutter and the second cutter are used to shear the pipe.

[0018] Optionally, a collecting assembly is also included, which includes a guide member and a collecting box, and one end of the guide member is used to receive the segmented pipe flowing out of the cutting assembly and guide the segmented pipe to the collecting box.

[0019] By adopting the technical solution, the pipes cut into sections are collected by using the guide member and the collection box, and the structure is simple.

[0020] Optionally, the connecting member is provided with a waist-shaped hole for the abutment member to pass through, and the waist-shaped hole is extended along the arrangement direction of the multiple limiting members; the surface of the connecting member facing the limiting member is connected with multiple nuts, and the multiple nuts correspond one-to-one to the multiple limiting members, and the nuts are threadedly matched with the abutment members.

[0021] By adopting the above technical solution, when manufacturing the connecting piece, the nut can be connected to the appropriate position of the connecting piece according to the width of the pipe in the factory, without the need to specially drill screw holes in the connecting piece, which facilitates the production and manufacturing of the connecting piece.

[0022] Optionally, the nut is slidingly connected to the connecting piece.

[0023] By adopting the above technical solution, the distance between the connected limiting members has a larger adjustment range.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. By arranging multiple limiters on the frame and using fixing components to make the distance between adjacent limiters adjustable, the pipe cutting machine is suitable for cutting pipes of different diameters;

[0026] 2. A hand piece is provided on the pressure roller, and the middle part of the hand piece is hinged to the frame, so that the pipe cutting machine can be easily inspected and repaired at the pressure roller position;

[0027] 3. By making the nut slide along the length direction of the connecting piece and connected to the connecting piece, the distance between adjacent limiting pieces has a larger adjustment range. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application.

[0029] Figure 2 yes Figure 1 An enlarged schematic diagram in part A.

[0030] Figure 3 It is a schematic diagram for showing the structure of the first driving member in Example 1.

[0031] Figure 4 It is a schematic diagram for showing the structure of the cutting assembly in Example 1.

[0032] Figure 5 yes Figure 1 An enlarged schematic diagram in part B.

[0033] Figure 6 It is a structural diagram of Example 2 of the present application.

[0034] Explanation of the reference numerals in the accompanying drawings: 1. Frame; 2. Limiting member; 3. Fixing assembly; 31. Connecting member; 311. Waist-shaped hole; 312. Dovetail groove; 32. Abutment member; 33. Nut; 331. Dovetail block; 4. Tube feeding assembly; 41. Pressing roller; 42. First driving member; 43. Setting rod; 44. First gear; 45. Second gear; 46. Hand piece; 5. Cutting assembly; 51. First cutter; 52. Second cutter; 53. Second driving member; 6. Collecting assembly; 61. Guide member; 62. Collecting box; 7. Clamping assembly; 71. Pressing member; 72. Support spring. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-6 This application is described in further detail.

[0036] The embodiment of the present application discloses a pipe cutting machine.

[0037] Example 1

[0038] Reference Figure 1 and Figure 2A pipe cutting machine includes a frame 1, a stopper 2, a fixing assembly 3, a pipe feeding assembly 4, a cutting assembly 5 and a collecting assembly 6. The stopper 2 is extended along the length direction of the pipe, and a plurality of stoppers 2 are provided, and the plurality of stoppers 2 are used for allowing the pipe to pass through. The fixing assembly 3 includes a connecting member 31 and a plurality of abutting members 32 threadedly connected to the connecting member 31, the connecting member 31 is connected to the frame 1, and the plurality of abutting members 32 correspond to the plurality of stoppers 2 one by one, and the abutting members 32 are used to abut against the stoppers 2. The pipe feeding assembly 4 is used to drive the pipe to move toward the cutting assembly 5, and the cutting assembly 5 is used to cut the pipe fed from between adjacent stoppers 2.

[0039] When cutting the pipe, first place the pipe between adjacent limiters 2, and then use the pipe delivery assembly 4 to deliver the pipe to the cutting assembly 5 for segmentation. Under normal circumstances, the abutment 32 is threaded with the connector 31 and the end is tightly against the limiter 2, so that the limiter 2 is tightly against the frame 1, so that the frame 1 and the abutment 32 clamp the limiter 2 to form a limit for the limiter 2. When it is necessary to cut pipes of different diameters, twist the abutment 32 to release the limit on the limiter 2, adjust the distance between adjacent limiters 2 to adapt to the new pipe diameter, and after the adjustment is completed, retighten the abutment 32.

[0040] The connecting member 31 is detachably connected to the frame 1 by bolts. In other embodiments, the connecting member 31 may also be fixedly connected to the frame 1.

[0041] Reference Figure 2 In this embodiment, the connecting member 31 is provided with a waist-shaped hole 311 for the abutment member 32 to pass through, and the waist-shaped hole 311 is extended along the arrangement direction of the plurality of limiting members 2. The surface of the connecting member 31 facing the limiting member 2 is connected with a plurality of nuts 33, and the plurality of nuts 33 correspond to the plurality of abutment members 32 one by one, and the nuts 33 are threadedly matched with the abutment members 32.

[0042] Reference Figure 1 and Figure 3 , wherein the pipe delivery assembly 4 includes a pressure roller 41, a first driving member 42 and a setting rod 43. The pressure roller 41 is rotatably connected to the frame 1, and the pressure roller 41 is used to abut against the pipe and drive the pipe to move. The first driving member 42 is connected to the frame 1, and the first driving member 42 is used to drive the pressure roller 41 to rotate relative to the frame 1. The setting rod 43 is connected to the frame 1, and the setting rod 43 is used to set up the rolled pipe. When transferring the pipe, the first driving member 42 is started, and the first driving member 42 drives the pressure roller 41 to rotate, and the pressure roller 41 drives the pipe to move. In this embodiment, the first driving member 42 is a motor.

[0043] Reference Figure 1 and Figure 4The cutting assembly 5 includes a first cutter 51, a second cutter 52 and a second driving member 53. The first cutter 51 is rigidly connected to the frame 1, and the second cutter 52 is slidably connected to the frame 1 along the height direction of the frame 1. The first cutter 51 and the second cutter 52 cooperate with each other to shear the pipe. The second driving member 53 is connected to the frame 1, and the second driving member 53 is used to drive the second cutter 52 to move along the height direction of the frame 1. When the pipe cutting machine is working, the second driving member 53 is started, and the second driving member 53 drives the second cutter 52 to repeatedly move in the direction of approaching or moving away from the second cutter 52, so as to cooperate with the first cutter 51 to cut the pipe. In this embodiment, the second driving member 53 is a cylinder.

[0044] Reference Figure 1 The collecting component 6 includes a guide member 61 and a collecting box 62. One end of the guide member 61 is used to receive the segmented pipe flowing out of the cutting component 5 and guide the segmented pipe to the collecting box 62. The collecting box 62 is placed below the guide member 61.

[0045] In this embodiment, the guide member 61 is a tubular structure, and the guide member 61 has a buffer surface, and the buffer surface is inclined to buffer the segmented pipe.

[0046] Further, see Figure 5 The pressing roller 41 is connected to the frame 1 by sliding along the height direction of the frame 1. The frame 1 is provided with a clamping assembly 7, which is used to fix the pressing roller 41 to the frame 1 after the pressing roller 41 moves relative to the frame 1. When cutting pipes of different diameters, the position of the pressing roller 41 is moved accordingly, so as to ensure that the pressing roller 41 effectively drives the pipe to move, and at the same time, the pressing roller 41 has a suitable pressure on the pipe.

[0047] It is understandable that even if the position of the pressure roller 41 is not adjustable, the pipe cutting machine can be used for cutting pipes of different diameters, but it is necessary to ensure that there is abutment between the pipe and the pressure roller 41 and that the pipe can pass through the space between the pressure roller 41 and the frame 1, so the diameters of different pipes cannot differ too much.

[0048] Specifically, the clamping assembly 7 includes a clamping member 71 and a supporting spring 72. The clamping member 71 is threadedly connected to the frame 1 along the height direction of the frame 1, and the end of the clamping member 71 is used to abut the end of the roller shaft of the pressure roller 41. One end of the supporting spring 72 abuts against the roller shaft of the pressure roller 41. The other end abuts against the frame 1. Under normal conditions, the clamping member 71 abuts against the pressure roller 41, and the supporting spring 72 is in a compressed state. The pressure roller 41 maintains balance under the action of its own gravity, the pressure of the clamping member 71, the supporting force of the supporting spring 72, and the supporting force of the pipe. When cutting different pipes, the clamping member 71 is twisted, and the length of the spring is adjusted by adjusting the position of the clamping member 71 relative to the frame 1, thereby adjusting the position of the pressure roller 41 relative to the frame 1. The structure is simple and easy to adjust.

[0049] In this embodiment, refer to Figure 3 , the end of the roller shaft of the pressure roller 41 is connected to a first gear 44, the output shaft of the first driving member 42 is connected to a second gear 45, and the first gear 44 and the second gear 45 are meshed with each other. The first driving member 42 is detachably connected to the frame 1 by bolts, and the frame 1 is provided with a plurality of screw holes (not shown in the figure) for the first driving member 42 to be connected. After the pressure roller 41 is moved, the position of the first driving member 42 is moved accordingly to ensure the meshing of the first gear 44 and the second gear 45. In other embodiments, the first driving member 42 can also be slidably connected to the frame 1 along the height direction of the frame 1, and a corresponding component is provided to fix the first driving member 42 to the frame 1 after the first driving member 42 slides relative to the frame 1.

[0050] Further, see Figure 1 and Figure 3 The end of the roller shaft of the pressure roller 41 is connected with a hand piece 46, and the middle part of the hand piece 46 is hinged to the frame 1. When a fault such as pipe jamming occurs at the pressure roller 41 of the pipe cutting machine, the pressing piece 71 is unscrewed from the frame 1, the hand piece 46 is rotated relative to the frame 1, and the pressure roller 41 is driven to move upward by the hand piece 46 for easy maintenance.

[0051] In this embodiment, two groups of clamping assemblies 7 are provided, and the two groups of clamping assemblies 7 correspond to the two ends of the pressure roller 41. The handpiece 46 is a "U"-shaped structure, and the two ends of the handpiece 46 correspond to the two ends of the pressure roller 41 to ensure the force stability of the pressure roller 41.

[0052] The implementation principle of Example 1 is as follows: when cutting the pipe, firstly, the rolled pipe is mounted on the mounting rod 43, and the free end of the pipe is passed through the space between the adjacent limit members 2 and then placed between the pressing roller 41 and the frame 1; then, the first driving member 42 is started, and the first driving member 42 drives the pressing roller 41 to rotate through the first gear 44 and the second gear 45, and the pressing roller 41 drives the pipe to move toward the direction of the cutting assembly 5 during the rotation process;

[0053] At the same time, the second driving member 53 is started, and the second driving member 53 drives the second cutter 52 to move. The second cutter 52 cooperates with the first cutter 51 to cut the pipe. The cut pipe segments fall into the collection box 62 through the guide member 61.

[0054] When cutting pipes of different diameters, the abutment member 32 is twisted to release the limiting function of the abutment member 32 on the limiting member 2, and the distance between adjacent limiting members 2 is adjusted to be suitable for the pipe to be cut, and then the abutment member 32 is retightened.

[0055] Example 2

[0056] Reference Figure 6The difference between this embodiment and embodiment 1 is that the nut 33 is slidably connected to the connecting member 31, so that the position of the nut 33 on the connecting member 31 is adjustable, thereby making the distance between adjacent limiting members 2 have a larger adjustment range.

[0057] Specifically, the structure of the sliding connection between the nut 33 and the connecting member 31 is as follows: a dovetail block 331 is connected to the surface of the nut 33 facing the connecting member 31, and a dovetail groove 312 is provided on the surface of the connecting member 31 facing the nut 33, and the dovetail groove 312 is used for the dovetail block 331 to slide.

[0058] To ensure the connection stability of the nut 33 on the connecting member 31, the connecting member 31 is provided with dovetail grooves 312 on both sides of the waist-shaped hole 311. Correspondingly, the nut 33 is provided with dovetail blocks 331 on both sides thereof.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pipe cutting machine, characterized in that: The invention comprises a frame (1), a stopper (2), a fixing assembly (3), a pipe delivery assembly (4) and a cutting assembly (5); the stopper (2) is arranged to extend along the length direction of the pipe, a plurality of the stoppers (2) are arranged, and the pipes are passed through between adjacent stoppers (2); the fixing assembly (3) comprises a connecting member (31) and a plurality of abutting members (32) threadedly connected to the connecting member (31); the connecting member (31) is connected to the frame (1), the plurality of abutting members (32) correspond to the plurality of stoppers (2) one by one, and the abutting members (32) are used to abut against the stoppers (2); the pipe delivery assembly (4) is used to drive the pipe to move in the direction of the cutting assembly (5), and the cutting assembly (5) is used to cut the pipe delivered from between the adjacent stoppers (2).

2. A pipe cutting machine according to claim 1, characterized in that: The pipe delivery assembly (4) comprises a pressure roller (41), a first driving member (42) and a mounting rod (43); the pressure roller (41) is rotatably connected to the frame (1), and the pressure roller (41) is used to drive the pipe to move; the first driving member (42) is connected to the frame (1), and the first driving member (42) is used to drive the pressure roller (41) to rotate relative to the frame (1); the mounting rod (43) is connected to the frame (1), and the mounting rod (43) is used to mount the rolled pipe.

3. A pipe cutting machine according to claim 2, characterized in that: The pressing roller (41) is slidably connected to the frame (1) along the height direction of the frame (1); the frame (1) is provided with a clamping assembly (7), and the clamping assembly (7) is used to fix the pressing roller (41) to the frame (1) after the pressing roller (41) moves relative to the frame (1).

4. A pipe cutting machine according to claim 3, characterized in that: The clamping assembly (7) comprises a pressing member (71) and a supporting spring (72); the pressing member (71) is threadedly connected to the frame (1) along the height direction of the frame (1); an end of the pressing member (71) is used for abutting against the end of the roller shaft of the pressure roller (41); one end of the supporting spring (72) abuts against the roller shaft of the pressure roller (41), and the other end abuts against the frame (1).

5. A pipe cutting machine according to claim 3 or 4, characterized in that: The end of the roller shaft of the pressure roller (41) is connected to a hand piece (46), and the middle part of the hand piece (46) is hinged to the frame (1).

6. A pipe cutting machine according to claim 1, characterized in that: The cutting assembly (5) comprises a first cutter (51), a second cutter (52) and a second driving member (53); the first cutter (51) is rigidly connected to the frame (1); the second cutter (52) is slidably connected to the frame (1) along the height direction of the frame (1); the first cutter (51) and the second cutter (52) cooperate to shear the pipe; the second driving member (53) is connected to the frame (1); the second driving member (53) is used to drive the second cutter (52) to move.

7. A pipe cutting machine according to claim 1, characterized in that: It also comprises a collecting assembly (6), the collecting assembly (6) comprising a guide member (61) and a collecting box (62), one end of the guide member (61) being used to receive the segmented tubular material flowing out of the cutting assembly (5) and to guide the segmented tubular material to the collecting box (62).

8. The pipe cutting machine according to claim 1, characterized in that: The connecting member (31) is provided with a waist-shaped hole (311) for allowing the abutting member (32) to pass through, and the waist-shaped hole (311) is extended along the arrangement direction of the plurality of limiting members (2); a plurality of nuts (33) are connected to a surface of the connecting member (31) facing the limiting members (2), the plurality of nuts (33) correspond to the plurality of limiting members (2) one by one, and the nuts (33) are threadedly matched with the abutting members (32).

9. A pipe cutting machine according to claim 8, characterized in that: The nut (33) is slidably connected to the connecting member (31).

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