A heat shrink tube cutting device

Abstract

The present invention provides a heat shrink tube cutting device, comprising a working machine, a cutting positioning part arranged on the working machine, a heat shrink tube conveying part conveying the heat shrink tube to the cutting positioning part, a tube cutting part for cutting the heat shrink tube positioned on the cutting positioning part, and a sleeve part for positioning the end of the heat shrink tube, wherein the cutting positioning part comprises a positioning seat arranged on the working machine, the positioning seat is provided with a positioning hole for the heat shrink tube to pass through, the positioning hole is provided with a positioning core that is inserted into the heat shrink tube when the heat shrink tube passes through the positioning hole, and the sleeve part is provided with a positioning column for the end of the heat shrink tube to be inserted and positioned after the heat shrink tube passes through the positioning hole. The heat shrink tube conveying part conveys the heat shrink tube to the cutting positioning part, so that the heat shrink tube passes through the positioning hole and the positioning core is inserted, and the end of the heat shrink tube inserts the positioning column, thereby realizing the positioning of the heat shrink tube to facilitate tube cutting, and ensuring that the shape and size of the heat shrink tube after each cutting remain consistent.

Description

Technical Field

[0001] The invention relates to a cutting device for a heat shrink tube. Background Art

[0002] In order to insulate and encapsulate the common-mode inductor, it is generally necessary to put a layer of heat shrink tubing on the common-mode inductor, and then heat the heat shrink tubing to shrink and tighten it on the common-mode inductor. Traditionally, the heat shrink tubing needs to be cut manually, and the cut heat shrink tubing is manually put on the common-mode inductor workpiece, and then the heat shrink tubing is heated and formed by a handheld hot air blower. This is done entirely manually, which is inefficient. In addition, the cutting of the heat shrink tubing is completely dependent on manual experience, so the shape and size of the cut heat shrink tubing cannot be unified, and it is difficult to ensure the cutting effect of the heat shrink tubing. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a heat shrink tube cutting device which can improve the working efficiency and ensure the tube cutting effect.

[0004] The object of the present invention is achieved in that:

[0005] A device for cutting heat shrink tubes, comprising a workbench, a cutting and positioning part arranged on the workbench, a heat shrink tube conveying part for conveying heat shrink tubes to the cutting and positioning part, a tube cutting part for cutting the heat shrink tubes positioned on the cutting and positioning part, and a sleeve part for positioning the end of the heat shrink tube, wherein the cutting and positioning part comprises a positioning seat arranged on the workbench, the positioning seat is provided with a positioning hole for the heat shrink tube to pass through, the positioning hole is provided with a positioning core that is inserted into the heat shrink tube when the heat shrink tube passes through the positioning hole, and the sleeve part is provided with a positioning column for the end of the heat shrink tube to be inserted and positioned after the heat shrink tube passes through the positioning hole.

[0006] The present invention adopts the above structure, and the heat shrink tube conveying part conveys the heat shrink tube to the cutting positioning part, so that the heat shrink tube passes through the positioning hole and the positioning core is inserted at the same time, and the end of the heat shrink tube inserts the positioning column, thereby realizing the positioning of the heat shrink tube to facilitate tube cutting, and ensuring that the shape and size of the heat shrink tube after each cutting remain consistent. Since the heat shrink tube has a relatively soft characteristic, it is easy to deform during cutting, and it is difficult to cut the tube if the positioning is insufficient. The inner wall of the positioning hole can limit and shape the outer wall of the heat shrink tube, and the outer wall of the positioning core can limit and shape the inner wall of the heat shrink tube, and the positioning column limits and shapes the end of the heat shrink tube, thereby providing sufficient positioning for the heat shrink tube, effectively preventing it from deforming during cutting, thereby further ensuring the effect of tube cutting and improving work efficiency.

[0007] In the device for cutting a heat shrink tube as described above, the positioning seat is provided with a first pressing member that passes through the positioning hole and presses the heat shrink tube onto the positioning core, and the sleeve portion is provided with a second pressing member that presses the heat shrink tube onto the positioning column. The heat shrink tube is pressed by the first pressing member and the second pressing member, further preventing the heat shrink tube from shifting when cutting the tube, thereby further ensuring the effect of cutting the tube.

[0008] As described above, in a heat shrink tube cutting device, the positioning core comprises a head portion placed in the positioning hole and a tail portion extending downwardly, the positioning core is wide at the head and narrow at the tail, and a guide arc surface is provided between the head and the tail, thereby ensuring that when the heat shrink tube conveying part conveys the heat shrink tube to the cutting positioning part, the heat shrink tube can smoothly pass through the positioning hole and the positioning core can be smoothly inserted at the same time, and because the head portion is wide, the positioning core can be prevented from continuing to slide downward after being inserted into the heat shrink tube.

[0009] In a heat shrink tube cutting device as described above, the heat shrink tube conveying part includes a tube conveying manipulator that can move up and down relative to the positioning seat to drive the heat shrink tube to pass through the positioning hole and be sleeved on the positioning column. The tube conveying manipulator is provided with two clamping blocks for clamping the heat shrink tube, and a clamping hole is formed between the two clamping blocks. When the heat shrink tube conveying part conveys the heat shrink tube to the cutting positioning part, the two clamping blocks clamp the heat shrink tube through the clamping hole, the tube conveying manipulator moves upward relative to the positioning seat so that the heat shrink tube passes through the positioning hole and is sleeved on the positioning column, and then the tube cutting part cuts the heat shrink tube positioned on the cutting positioning part. After cutting, the clamping block releases the heat shrink tube, the tube conveying manipulator moves downward relative to the positioning seat, and then the clamping block re-clamps the heat shrink tube through the clamping hole, and the tube conveying manipulator moves upward relative to the positioning seat again, and this is repeated, thereby continuously conveying the heat shrink tube to the cutting positioning part.

[0010] In the above-mentioned heat shrink tube cutting device, the lower part of the tail passes through the clamping hole, thereby effectively ensuring that the two clamping blocks can clamp the heat shrink tube, and can also further prevent the positioning core from slipping.

[0011] In the heat shrink tube cutting device as described above, a limit block is provided on the positioning column, thereby further limiting the travel of the heat shrink tube conveying part to convey the heat shrink tube to the cutting positioning part, and further ensuring that the length of the heat shrink tube after each cutting remains consistent.

[0012] A heat shrink tube cutting device as described above, the positioning hole has a boss for the positioning column to abut against, the tube cutting part includes a cutter and a tube cutting drive component that drives the cutter to move between the positioning column and the boss to cut the heat shrink tube when the positioning column abuts against the boss, the tube cutting drive component drives the cutter to move between the positioning column and the boss to cut the heat shrink tube, thereby ensuring that the incision of the heat shrink tube is flush and further ensuring that the shape and size of the heat shrink tube remain consistent after each tube cutting.

[0013] In the above-mentioned heat shrink tube cutting device, a feeding fixture is provided on the working machine, a feeding tube driving member driving the sleeve part to move between the feeding fixture and the positioning seat is provided on the working machine, and a sleeve driving member driving the positioning column to move up and down is provided on the sleeve part, so that the cut heat shrink tube is moved away from the cutting positioning part and sleeved on the workpiece located on the feeding fixture. Driven by the feeding tube driving member and the sleeve driving member, the sleeve part can transport the cut heat shrink tube and sleeve it on the workpiece located on the feeding fixture.

[0014] In a heat shrink tube cutting device as described above, the positioning seat is provided with a tube driving member for driving the tube delivery robot to move up and down, and the positioning seat is also provided with a limit member for limiting the stroke of the tube driving member. The limit member can be adjusted up and down relative to the positioning seat, thereby adjusting the stroke of the tube driving member to adjust the tube delivery length of the heat shrink tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the cutting positioning part of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the positioning core of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the sleeve part of the present invention;

[0020] Figure 5 This is a schematic diagram of the bottom structure of the working machine of the present invention;

[0021] Figure 6 This is a reference diagram of the use status of the present invention applied to a heat shrink tube sleeve forming production line. DETAILED DESCRIPTION

[0022] A heat shrink tube cutting device includes a work machine 1, a cutting positioning part 41 arranged on the work machine 1, a heat shrink tube conveying part 42 for conveying the heat shrink tube to the cutting positioning part 41, a tube cutting part 43 for cutting the heat shrink tube positioned on the cutting positioning part 41, and a sleeve part 44 for positioning the end of the heat shrink tube. The cutting positioning part 41 includes a positioning seat 411 arranged on the work machine 1, the positioning seat 411 is provided with a positioning hole 412 for the heat shrink tube to pass through, the positioning hole 412 is provided with a positioning core 413 that is inserted into the heat shrink tube when the heat shrink tube passes through the positioning hole 412, and the sleeve part 44 is provided with a positioning column 441 for the end of the heat shrink tube to be inserted and positioned after the heat shrink tube passes through the positioning hole 412.

[0023] In order to further prevent the heat shrink tube from shifting during tube cutting and to further ensure the effect of tube cutting, the positioning seat 411 is provided with a first pressing member 415 that passes through the positioning hole 412 and presses the heat shrink tube onto the positioning core 413, and the sleeve portion 44 is provided with a second pressing member 442 that presses the heat shrink tube onto the positioning column 441. Both the first pressing member 415 and the second pressing member 442 can be driven by a cylinder.

[0024] To ensure that when the heat shrink tube conveying part 42 conveys the heat shrink tube to the cutting positioning part 41, the heat shrink tube can smoothly pass through the positioning hole 412 and the positioning core 413 can be smoothly inserted and prevented from continuing to slide down after the positioning core 413 is inserted into the heat shrink tube, the positioning core 413 includes a head 4131 placed in the positioning hole 412 and a tail 4132 extending downward. The positioning core 413 is wide at the head and narrow at the tail, and a guiding arc surface 4133 is provided between the head 4131 and the tail 4132.

[0025] In order to continuously convey the heat shrink tube to the cutting positioning part 41, the heat shrink tube conveying part 42 includes a tube conveying robot 421 that can move up and down relative to the positioning seat 411 to drive the heat shrink tube to pass through the positioning hole 412 and be sleeved on the positioning column 441. The tube conveying robot 421 is provided with two clamping blocks 422 for clamping the heat shrink tube (the two clamping blocks 422 can be driven by a cylinder to clamp), and a clamping hole 423 is formed between the two clamping blocks 422.

[0026] In order to effectively ensure that the two clamping blocks 422 can clamp the heat shrink tube and further prevent the positioning core from slipping, the lower part of the tail 4132 passes through the clamping hole 423. The bottom of the working machine 1 is provided with a reel 40 for winding the heat shrink tube 401. The end of the heat shrink tube 401 wound on the reel 40 passes through the working machine 1 and is clamped by the tube manipulator 421. When used for the first time, the end of the heat shrink tube 401 can be passed through the positioning hole 411 and the positioning core 413 can be inserted.

[0027] In order to further limit the travel of the heat shrink tube conveying part 42 to convey the heat shrink tube to the cutting and positioning part 41 and to further ensure that the length of the heat shrink tube after each cutting remains consistent, a limit stopper 443 is provided on the positioning column 441 .

[0028] In order to ensure that the cut of the heat shrink tube is flush and further ensure that the shape and size of the heat shrink tube after each tube cutting are consistent, the positioning column 441 abuts against the boss 414 on the positioning hole 412, and the tube cutting part 43 includes a cutter 431 and a tube cutting driving member 432 that drives the cutter 431 to move between the positioning column 441 and the boss 414 to cut the heat shrink tube when the positioning column 441 abuts against the boss 414. The cutter 431 is arranged at the end of the knife holder 430, and the tube cutting driving member 432 (which can be a cylinder) drives the knife holder 430 to rotate to drive the cutter 431 to move between the positioning column 441 and the boss 414 to cut the heat shrink tube.

[0029] In order to enable the sleeve part 44 to transport the cut heat shrink tube and put it on the workpiece, the working machine 1 is provided with a feeding fixture 21, a tube feeding driving member 444 is provided on the working machine 1 to drive the sleeve part 44 to move between the feeding fixture 21 and the positioning seat 411, and a sleeve driving member 445 is provided on the sleeve part 44 to drive the positioning column 441 to move up and down, so that the cut heat shrink tube is moved away from the cutting and positioning part 41 and put on the workpiece located on the feeding fixture 21. A slide seat 440 for the sleeve part 44 to slide is provided between the bottom of the sleeve part 44 and the working machine 1, and the tube feeding driving member 444 (which can be a cylinder) drives the sleeve part 44 to slide along the slide seat 440 to drive the sleeve part 44 to move between the feeding assembly 2 and the positioning seat 411. When cutting the tube, the sleeve driving member 445 (a cylinder can be used) drives the positioning column 441 to press against the boss 414. After the tube cutting is completed, the sleeve driving member 445 drives the positioning column 441 away from the boss 414. The tube feeding driving member 444 drives the sleeve part 44 to slide along the slide seat 440 to the feeding assembly 2. The sleeve driving member 445 drives the positioning column 441 to press against the feeding fixture 21 and puts the cut heat shrink tube on the positioning column 441 onto the workpiece on the feeding fixture 21.

[0030] In order to adjust the length of the pipe delivery, the positioning seat 411 is provided with a pipe delivery driving member 425 (a cylinder can be used) for driving the pipe delivery manipulator 421 to move up and down. The positioning seat 411 is also provided with a limit member 426 for limiting the stroke of the pipe delivery driving member 425. The limit member 426 can be adjusted up and down relative to the positioning seat 411, thereby adjusting the stroke of the pipe delivery driving member 425 to adjust the pipe delivery length of the heat shrink tube, and then adjusting the cutting length of the heat shrink tube (while adjusting the upper and lower positions of the limit member 426, it is also necessary to adjust the upper and lower positions of the limit block 443 and the positioning column 441).

[0031] When the present invention is used, the end of the heat shrink tube 401 is first passed through the positioning hole 411 and the positioning core 413 is inserted, and the two clamping blocks 422 of the heat shrink tube conveying part 43 clamp the heat shrink tube 401 through the clamping hole 423, and the tube conveying manipulator 421 moves upward relative to the positioning seat 441 so that the heat shrink tube 401 passes through the positioning hole 412 and is sleeved on the positioning column 441 (at this time, the positioning column 441 abuts on the boss 414), so that the end of the heat shrink tube 401 abuts against the limit stopper 443, and the first pressing member 415 passes through the positioning hole 412 to hold the heat shrink tube 401 The first pressing member 415 and the second pressing member 442 are pressed against the positioning core 413, and the head of the heat shrink tube 401 is pressed against the positioning column 441. The inner wall of the positioning hole 412 can limit and shape the outer wall of the heat shrink tube 401, and the outer wall of the positioning core 413 can limit and shape the inner wall of the heat shrink tube 401. In addition, the positioning column 441 limits and shapes the end of the heat shrink tube 401, and the first pressing member 415 and the second pressing member 442 are pressed, so as to provide sufficient positioning for the heat shrink tube 401 and effectively prevent it from deformation. Then the tube cutting drive member 432 drives The movable knife holder 430 rotates to drive the cutter 431 to move between the positioning column 441 and the boss 414 to cut the heat shrink tube 401. After cutting, the sleeve driving member 445 drives the positioning column 441 to move away from the boss 414, and the tube feeding driving member 444 drives the sleeve portion 44 to slide along the slide 440 to the feeding assembly 2. The sleeve driving member 445 drives the positioning column 441 to abut against the feeding fixture 21 and sleeves the cut heat shrink tube on the positioning column 441 onto the workpiece on the feeding fixture 21. At the same time, the clamping block 422 releases the heat shrink tube 401, and the tube feeding manipulator 421 is in contact with the heat shrink tube 401. The positioning seat 441 moves downward, and then the clamping block 422 re-clamps the heat shrink tube 401 through the clamping hole 423, and the tube feeding robot 421 moves upward relative to the positioning seat 441 again, and this is repeated, thereby continuously feeding the heat shrink tube 401 to the cutting positioning part 41, and the positioning column 441 is driven by the tube feeding drive 444 and the sleeve drive 445 to rest against the boss 414 again, and the workpiece with the heat shrink tube on the feeding fixture 21 is immediately transported to the subsequent workstation together with the feeding fixture 21 to complete the subsequent processes such as heat shrink tube sleeve tightening and heat shrink tube molding.

Claims

1. A heat shrink tube cutting device, Features The invention comprises a working machine (1), a cutting and positioning part (41) arranged on the working machine (1), a heat shrink tube conveying part (42) conveying the heat shrink tube to the cutting and positioning part (41), a tube cutting part (43) cutting the heat shrink tube positioned on the cutting and positioning part (41), and a sleeve part (44) positioning the end of the heat shrink tube, wherein the cutting and positioning part (41) comprises a positioning seat (411) arranged on the working machine (1), the positioning seat (411) being provided with a positioning hole (412) for the heat shrink tube to pass through, the positioning hole (412) being provided with a positioning core (413) which is inserted into the heat shrink tube when the heat shrink tube passes through the positioning hole (412), and the sleeve part (44) being provided with a positioning column (441) for the end of the heat shrink tube to be inserted into and positioned after the heat shrink tube passes through the positioning hole (412); The positioning seat (411) is provided with a first pressing member (415) that passes through the positioning hole (412) and presses the heat shrink tube onto the positioning core (413), and the sleeve portion (44) is provided with a second pressing member (442) that presses the heat shrink tube onto the positioning column (441); The positioning core (413) comprises a head portion (4131) disposed in the positioning hole (412) and a tail portion (4132) extending downward, the positioning core (413) is wide at the head and narrow at the tail, and a guide arc surface (4133) is provided between the head portion (4131) and the tail portion (4132); The heat shrink tube conveying part (42) comprises a tube conveying manipulator (421) which can move up and down relative to the positioning seat (411) to drive the heat shrink tube to pass through the positioning hole (412) and be sleeved on the positioning column (441); the tube conveying manipulator (421) is provided with two clamping blocks (422) for clamping the heat shrink tube, and a clamping hole (423) is formed between the two clamping blocks (422); The positioning hole (412) includes a boss (414) for the positioning column (441) to abut against, and the tube cutting portion (43) includes a cutter (431) and a tube cutting drive member (432) for driving the cutter (431) to move between the positioning column (441) and the boss (414) to cut the heat shrink tube when the positioning column (441) abuts against the boss (414).

2. A heat shrink tube cutting device according to claim 1, Features The lower portion of the tail portion (4132) passes through the clamping hole (423).

3. A heat shrink tube cutting device according to claim 1, Features A limit stopper (443) is provided on the positioning column (441).

4. A heat shrink tube cutting device according to claim 1, Features The working machine (1) is provided with a feeding fixture (21), and the working machine (1) is provided with a tube feeding driving member (444) for driving the sleeve portion (44) to move between the feeding fixture (21) and the positioning seat (411), and the sleeve portion (44) is provided with a sleeve driving member (445) for driving the positioning column (441) to move up and down, so that the cut heat shrink tube is moved away from the cutting positioning portion (41) and sleeved onto a workpiece located on the feeding fixture (21).

5. A heat shrink tube cutting device according to claim 1, Features The positioning seat (411) is provided with a pipe delivery driving member (425) for driving the pipe delivery manipulator (421) to move up and down. The positioning seat (411) is also provided with a limiting member (426) for limiting the travel of the pipe delivery driving member (425). The limiting member (426) can be adjusted up and down relative to the positioning seat (411).

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