Heat shrink tube blowing equipment

Abstract

The utility model discloses heat shrink tube blowing equipment, which can automatically arrange wires and sleeve heat shrink tubes after manual feeding, and can fix each connecting wire of a wire harness through the heat shrink tubes. The equipment comprises a machine table, a jig arranged on the machine table, a wire arranging mechanism and a first pipe sleeving mechanism, the jig comprises a fixed clamp used for fixing the first end of the wire harness and a movable clamp horizontally moving relative to the fixed clamp. A limiting groove used for limiting the connecting line is formed in the clamping opening of the movable clamp. The wire arranging mechanism comprises a first driving device used for driving the movable clamp to move horizontally, a first clamping jaw with the same height as a clamping opening of the fixed clamp, and a second driving device used for driving the first clamping jaw to move horizontally. The first pipe sleeving mechanism comprises a first feeding device used for providing a heat shrink tube, a first clamping and conveying device used for clamping and conveying the heat shrink tube, and a first hot air gun. The first clamping and conveying device sleeves the second end of the wire harness with the heat shrink tube provided by the first feeding device, and the heat shrink tube is heated by the first hot air gun.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness assembly, in particular to a device for blowing and installing a heat shrink tube. Background Art

[0002] A wiring harness is usually composed of multiple connecting wires for different purposes, which need to be arranged in a certain order before they can be connected to the terminals for assembly.

[0003] In the current wire harness assembly process, the only way to proceed with subsequent assembly steps is through manual wire management, which requires the wires to be neatly arranged and placed on a jig. This slow manual management process impacts overall production efficiency, is labor-intensive, and results in low yield rates. Due to the demands of high-volume, rapid production, it is crucial to quickly and efficiently organize and sequence the wires within the wire harness, necessitating equipment improvements to meet automation requirements. Utility Model Content

[0004] The purpose of the utility model is to provide a blow-install heat shrink tubing device to solve the problems existing in the prior art. It can automatically organize the wires and put on the heat shrink tubing after manual loading, fix the various connecting wires of the wiring harness through the heat shrink tubing, and thus keep the end positions of the various connecting wires fixed unchanged for subsequent assembly processes.

[0005] In order to achieve the above objectives, the solution of the present invention is:

[0006] A heat shrink tube blowing device includes a machine, several jigs installed on the machine, a wire management mechanism, and a first sleeve mechanism. The jig passes through the wire management mechanism and the first sleeve mechanism in sequence according to the production process; the jig includes a fixed clamp for fixing the first end of the wire harness, and a movable clamp that moves horizontally relative to the fixed clamp; the clamp of the movable clamp is provided with a limiting groove for limiting the connecting line; the wire management mechanism includes a first driving device for driving the movable clamp to move horizontally, a first clamping jaw at the same height as the clamping jaw of the fixed clamp, and a second driving device for driving the first clamping jaw to move horizontally; the first sleeve mechanism includes a first loading device for providing heat shrinkable tubes, a first clamping device for clamping the heat shrinkable tubes, and a first hot air gun; the first clamping device puts the heat shrinkable tube provided by the first loading device onto the second end of the wire harness, and the first hot air gun heats the heat shrinkable tube so that it shrinks due to the heat.

[0007] The jig further includes a jig base, on which a first slide rail is provided; the fixed fixture is mounted on the jig base and is located at the end of the first slide rail; the movable fixture is slidably fitted on the first slide rail.

[0008] The output end of the first driving device is provided with a push plate, and the push plate is driven by the first driving device to move and abut against the lower end side surface of the movable clamp.

[0009] The first feeding device includes a feeding wheel driven by a first servo motor, a driven wheel opposite to the feeding wheel, and a cutter arranged in the output direction of the feeding wheel, which is used to cut the heat shrink tube into a fixed length.

[0010] Preferably, the first loading device also includes a sleeve base for installing the first servo motor, driven wheel and cutter, and a guide wheel arranged in the input direction of the feeding wheel; guide tubes are provided in the input direction and output direction of the feeding wheel.

[0011] The first clamping device includes a second clamping jaw for clamping the heat shrink tube, a clamping jaw frame for mounting the second clamping jaw, a screw module for driving the clamping jaw frame, and a second servo motor for driving the screw module.

[0012] Preferably, the first clamping and feeding device also includes a pipe feeding base for installing the screw module; a sensor plate is provided on the clamping jaw frame; a photoelectric sensor for the movable cooperation of the sensor plate is provided on the pipe feeding base for detecting the position of the second clamping jaw and the clamping jaw frame.

[0013] The blowing heat shrink tube equipment also includes a second sleeve mechanism located downstream of the first sleeve mechanism; the second sleeve mechanism includes a second loading device for providing heat shrink tubes, a second clamping device for clamping the heat shrink tubes, and a second hot air gun; the second clamping device sleeves the heat shrink tube provided by the second loading device onto the middle part of the wire harness, and the second hot air gun heats the heat shrink tube so that it shrinks due to the heat.

[0014] Preferably, the second sleeve mechanism also includes a third clamping jaw movably engaged between the fixed clamp and the movable clamp along the up and down directions, a third driving device for driving the third clamping jaw, and an upper clamping device and a lower clamping device for separating the movable clamp up and down; a support block is fixedly connected to the side of the movable clamp, and the support block is provided with a groove opposite to the limit groove; the second sleeve mechanism also includes a tube pressing block movably engaged above the support block, and a fourth driving device for driving the tube pressing block.

[0015] Preferably, the heat shrink tube blowing device further comprises a heat shrink tube blowing mechanism located downstream of the second sleeve mechanism; the heat shrink tube blowing mechanism comprises a third hot air gun and a single-axis module for driving the third hot air gun to move horizontally.

[0016] After adopting the above technical solution, the utility model has the following technical effects:

[0017] (1) The utility model manually arranges the first end of the wire harness and fixes the first end of the wire harness on the fixed fixture of the jig. When the jig moves to the working position of the wire arrangement mechanism, the first driving device drives the movable fixture to move horizontally relative to the fixed jig. Under the action of the limiting groove of the movable fixture, the movable fixture arranges the wire harness at the same time during the horizontal movement, straightens the various connecting wires of the wire harness and arranges them neatly in a preset order, straightens them from the first end of the wire harness to its second end, and at this time, the fixed fixture and the movable fixture tighten the wire harness at both ends of the wire harness respectively; when the jig moves to the working position of the first sleeve mechanism, the first clamping device clamps the heat shrink tube provided by the first feeding device and sleeves it onto the second end of the wire harness, and then the first hot air gun heats the heat shrink tube so that the heat shrink tube shrinks due to heat, thereby fixing the second end of the wire harness, and the end positions of the various connecting wires of the wire harness remain fixed, which is convenient for the subsequent assembly process of the wire harness and terminals or other accessories;

[0018] (2) The utility model only requires manual loading of materials at the jig at the first workstation of the assembly line, and simply straightening out the position of the connecting wires at the first end of the wiring harness. Subsequent processes can be performed by mechanical automation, which has a high degree of automation and can achieve fast, accurate and efficient blow-fitting of heat shrink tubing, helping to improve production efficiency and product quality, while reducing the cost and risk of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall three-dimensional diagram of a specific embodiment of the utility model;

[0020] Figure 2 It is a partial structural top view of a specific embodiment of the utility model;

[0021] Figure 3 The fixture of the specific embodiment of the utility model is three-dimensional Figure 1 ;

[0022] Figure 4 The fixture of the specific embodiment of the utility model is three-dimensional Figure 2 ;

[0023] Figure 5 A top view of a fixture according to a specific embodiment of the present invention;

[0024] Figure 6 This is a three-dimensional diagram of a cable management mechanism according to a specific embodiment of the present utility model;

[0025] Figure 7 This is a three-dimensional diagram of the first sleeve mechanism of a specific embodiment of the utility model;

[0026] Figure 8 A top view of a first sleeve mechanism according to a specific embodiment of the present utility model;

[0027] Figure 9 It is the first feeding device of the specific embodiment of the utility model;

[0028] Figure 10 It is the first clamping and conveying device of a specific embodiment of the utility model;

[0029] Figure 11 This is a three-dimensional diagram of the second sleeve mechanism of a specific embodiment of the utility model;

[0030] Figure 12 A top view of the second sleeve mechanism according to a specific embodiment of the present utility model;

[0031] Figure 13 This is a front view of the second sleeve mechanism of a specific embodiment of the utility model;

[0032] Figure 14 This is a partial three-dimensional diagram of the second sleeve mechanism of a specific embodiment of the utility model;

[0033] Figure 15 This is a three-dimensional diagram of a heat shrink tube blowing mechanism according to a specific embodiment of the present utility model;

[0034] Description of Figure Numbers:

[0035] 1-machine; 11-turntable;

[0036] 2- fixture; 21- fixed fixture; 22- movable fixture; 221- limiting slot; 23- fixture base; 231- first slide rail; 24- support block; 241- groove;

[0037] 3-cable management mechanism; 31-first drive device; 311-push plate; 32-first clamping claw; 33-second drive device; 34-cable management base;

[0038] 4 - First casing mechanism; 41 - First loading device; 411 - First servo motor; 412 - Feed wheel; 413 - Driven wheel; 414 - Cutter; 415 - Casing base; 416 - Guide wheel; 417 - Guide tube; 42 - First clamping device; 421 - Second clamping jaw; 422 - Clamping jaw frame; 423 - Screw module; 424 - Second servo motor; 425 - Feeding base; 426 - Sensor plate; 427 - Photoelectric sensor; 43 - First hot air gun;

[0039] 5 - second sleeve mechanism; 51 - second feeding device; 52 - second clamping device; 53 - second hot air gun; 54 - third clamping jaw; 55 - third driving device; 56 - upper clamping device; 561 - first lever; 57 - lower clamping device; 571 - second lever; 58 - tube pressing block; 59 - fourth driving device;

[0040] 6-heat shrink tube blowing mechanism; 61-third hot air gun; 62-single axis module;

[0041] a-Wire harness. DETAILED DESCRIPTION

[0042] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific embodiments.

[0043] refer to Figure 1-15 As shown, the utility model discloses a heat shrink tubing blowing device, comprising a machine 1, a plurality of jigs 2 mounted on the machine 1, a wire management mechanism 3, and a first tube sleeve mechanism 4. The jigs 2 pass through the wire management mechanism 3 and the first tube sleeve mechanism 4 in sequence according to the production process.

[0044] The fixture 2 includes a fixed fixture 21 for fixing the first end of the wiring harness a, and a movable fixture 22 that moves horizontally relative to the fixed fixture 21; a limiting groove 221 for limiting the position of the connecting wire is provided at the clamping mouth of the movable fixture 22, which can ensure that the position of the connecting wire does not change after being clamped in the limiting groove 221;

[0045] The cable management mechanism 3 includes a first driving device 31 for driving the movable clamp 22 to move horizontally, a first clamping jaw 32 at the same height as the clamping opening of the fixed clamp 21, and a second driving device 33 for driving the first clamping jaw 32 to move horizontally;

[0046] The first sleeve mechanism 4 includes a first feeding device 41 for providing a heat shrink tube, a first clamping device 42 for clamping the heat shrink tube, and a first hot air gun 43; the first feeding device 41 is used to provide a heat shrink tube of adapted size (mainly adapted length and tube diameter); the first clamping device 42 sleeves the heat shrink tube provided by the first feeding device 41 onto the second end of the wiring harness a, and the first hot air gun 43 heats the heat shrink tube so that it shrinks due to the heat.

[0047] Through the above scheme, the utility model manually arranges the first end of the wire harness a and fixes the first end of the wire harness a on the fixed clamp 21 of the jig 2. After the jig 2 moves to the working position of the wire-arranging mechanism 3, the first driving device 31 drives the movable clamp 22 to move horizontally relative to the fixed jig 21. Under the action of the limiting groove 221 of the movable clamp 22, the movable clamp 22 arranges the wire harness a at the same time during the horizontal movement, straightens the various connecting wires of the wire harness a and arranges them neatly in a preset order, straightening them from the first end of the wire harness a to its second end. At this time, the fixed clamp 21 and the movable clamp 22 tighten the wire harness a at both ends of the wire harness a respectively; when the jig 2 moves to the working position of the first sleeve mechanism 4 Afterwards, the first clamping device 42 clamps the heat shrink tube provided by the first feeding device 41 and puts it on the second end of the wire harness a, and then the first hot air gun 43 heats the heat shrink tube so that the heat shrink tube is tightened by the heat, thereby fixing the second end of the wire harness a. The end positions of each connecting wire of the wire harness a remain fixed, which is convenient for the subsequent assembly process of the wire harness a and the terminals or other accessories; the utility model only requires manual loading at the first workstation of the assembly line at the jig 2, and simply straightens out the position of the connecting wires at the first end of the wire harness a. The subsequent processes can be performed by mechanical automation with a high degree of automation, which can realize fast, accurate and efficient blowing of the heat shrink tube, which helps to improve production efficiency and product quality, while reducing the cost and risk of the enterprise.

[0048] Specific embodiments of the present invention are shown below.

[0049] See also Figure 3-5 , is the fixture 2 of the utility model:

[0050] In this embodiment, the above-mentioned fixed clamp 21 and movable clamp 22 are clamps that open and close up and down, including a clamp seat located at the bottom and a clamp handle pivotally connected to the upper surface of the clamp seat; the shape of the limiting groove 221 matches the contour of the connecting line of the wire harness a after being arranged neatly according to the preset position, so that after the first end of the wire harness a is manually straightened, the horizontal movement of the movable clamp 22 can be gradually straightened from the first end of the wire harness a to its second end through its limiting groove 221.

[0051] The jig 2 further includes a jig base 23 , on which a first slide rail 231 is provided; the fixed fixture 21 is mounted on the jig base 23 and is located at the end of the first slide rail 231 ; the movable fixture 22 is slidably fitted on the first slide rail 231 .

[0052] See also Figure 6 , is the wire management mechanism 3 of the present utility model:

[0053] In this embodiment, the first driving device 31 and the second driving device 33 are both cylinders, and the first clamp 32 is a pneumatic clamp; the wire management mechanism 3 also includes a wire management base 34 for raising the second driving device 33 so that the height of the first clamp 32 matches the fixing fixture 21.

[0054] The output end of the first drive device 31 is provided with a push plate 311. Driven by the first drive device 31, the push plate 311 abuts against the lower side of the movable clamp 22, thereby pushing the movable clamp 22 to move horizontally. The first drive device 31 drives the push plate 311, thereby linking the movable clamp 22 and straightening the wire harness A. To prevent the end of the wire harness from being spread out, the first clamping jaw 32 clamps and shapes the end of the wire harness. The horizontal movement output by the second drive device 33 straightens the end of the wire harness to facilitate pre-insertion of heat shrink tubing in subsequent processes.

[0055] See also Figure 7-10 , is the first sleeve mechanism 4 of the utility model:

[0056] See also Figure 9 The first loading device 41 includes a feed wheel 412 driven by a first servo motor 411, a driven wheel 413 opposite the feed wheel 412, and a cutter 414 positioned in the output direction of the feed wheel 412 for cutting the heat shrink tubing to a predetermined length. By driving the feed wheel 412 to rotate via the first servo motor 411, the number of revolutions of the feed wheel 412 can be precisely controlled to control the length of the heat shrink tubing being fed forward. After being cut by the cutter 414, the predetermined length of the heat shrink tubing can be removed by the first clamping device 42 and applied to the second end of the wiring harness a. In this embodiment, the cutter 414 can be mounted on a pair of pneumatic grippers to drive the shearing action.

[0057] Furthermore, the first feeding device 41 further includes a sleeve base 415 for mounting the first servo motor 411 , the driven wheel 413 and the cutter 414 .

[0058] At the same time, the above-mentioned first loading device 41 also includes a guide wheel 416 arranged in the input direction of the feeding wheel 412. The guide wheel 416 is used to guide the entire circle of heat shrink tube hanging on the equipment to the feeding wheel 412; the input direction and output direction of the feeding wheel 412 are both provided with guide tubes 417.

[0059] See also Figure 10The first clamping and feeding device 42 includes a second clamping jaw 421 for clamping the heat shrink tubing, a clamping jaw frame 422 for mounting the second clamping jaw 421, a screw module 423 for driving the clamping jaw frame 422, and a second servo motor 424 for driving the screw module 423. The screw module 423 converts the circular motion output by the second servo motor 424 into linear motion of the clamping jaw frame 422, thereby driving the second clamping jaw 421 to move horizontally to clamp the heat shrink tubing, thereby applying the heat shrink tubing provided by the first feeding device 41 to the second end of the wiring harness a. The second clamping jaw 421 may be a pneumatic clamping jaw.

[0060] Furthermore, the first clamping and feeding device 42 also includes a tube feed base 425 for mounting a screw module 423; a sensor plate 426 is mounted on the clamping jaw frame 422; and a photoelectric sensor 427 is mounted on the tube feed base 425, which mates with the sensor plate 426. This sensor 427 is used to detect the position of the second clamping jaw 421 / clamping jaw frame 422, ensuring proper movement and aligning with the device's program for automated operation. In this embodiment, photoelectric sensors 427 are located at both the beginning and end of the clamping jaw frame 422's movement path.

[0061] The basic solution of the present invention is to put a heat shrink tube on the second end of the wiring harness a. At this time, there is no heat shrink tube between the two ends of the wiring harness a for tightening and limiting. Therefore, in a further optimized technical solution, the heat shrink tube blowing equipment can also add a second sleeve mechanism 5 located downstream of the first sleeve mechanism 4.

[0062] See also Figure 11-14 , is the second sleeve mechanism 5 of the utility model:

[0063] The second sleeve mechanism 5 includes a second loading device 51 for providing heat shrink tubing, a second clamping device 52 for clamping and delivering the heat shrink tubing, and a second heat gun 53. The second loading device 51 provides heat shrink tubing of appropriate size (primarily length and diameter). The second clamping device 52 applies the heat shrink tubing provided by the second loading device 51 to the middle of the wiring harness a, where it is heated and tightened by the second heat gun 43. Unlike the first sleeve mechanism 4, the second sleeve mechanism 5 primarily applies heat shrink tubing between the two ends of the wiring harness a, allowing the heat shrink tubing to be applied between the two ends to maintain the shape and position of the connecting wires.

[0064] In some embodiments of the second sleeve mechanism 5, the second loading device 51 and the second clamping device 52 respectively utilize the same mechanical structure as the first loading device 41 and the first clamping device 42, thereby achieving the same functions. However, because the second clamping device 52 needs to sleeve the heat shrink tubing onto the middle of the wire harness a, its travel distance will be different from that of the first clamping device 42.

[0065] In some embodiments of the above-mentioned second sleeve mechanism 5, it also includes a third clamping jaw 54 that is movably engaged between the fixed clamp 21 and the movable clamp 22 along the up and down directions, a third driving device 55 for driving the third clamping jaw 54, and an upper clamping device 56 and a lower clamping device 57 for separating the movable clamp 22 up and down. The working principle is the same as that of the first sleeve mechanism 4. The second feeding device 51 of the second sleeve mechanism 5 transports the whole circle of heat shrink tubing hanging on the equipment forward and cuts it according to the length preset by the program, and the second clamping device 52 clamps the cut section of heat shrink tubing and continues to transport it forward; while the second clamping device 52 transports the heat shrink tubing forward, the third clamping jaw 54 rises upward under the drive of the third driving device 55, clamps the middle part of the wire harness a to achieve fixation, at this time, the upper clamping device 56 and the lower clamping device 57 work simultaneously, separating the clamping handle and the clamping seat of the movable clamp 22 up and down to avoid the continued movement of the heat shrink tubing; then, the second clamping device 52 continues to transport the heat shrink tubing forward until the heat shrink tubing is close to the third clamping jaw 54, and the second hot air gun 53 clamps the heat shrink tubing. The first section of heat shrink tubing is heated and tightened. The second feeding device 51 then cuts out a second section of heat shrink tubing and, following the previous steps, delivers it to the vicinity of the third clamping jaw 54. The third clamping jaw 54 then releases and lowers (because the heat shrink tubing is wrapped around wire harness a, wire harness a will not bend downward). The second clamping device 52 continues to carry the second section of heat shrink tubing until it passes over the third clamping jaw 54. The third clamping jaw 54 then rises again and continues to clamp wire harness a, keeping it horizontal. The second hot air gun 53 then heats and tightens the second section of heat shrink tubing. Finally, the third clamping jaw 54, second clamping device 52, upper opening device 56, lower opening device 57, and movable fixture 22 are reset in sequence, completing the process of applying the heat shrink tubing to the middle of wire harness a. In this section, the third clamping jaw 54 can be a pneumatic clamp, and the third drive device 55 can be a cylinder.

[0066] Furthermore, the upper clamping device 56 and the lower clamping device 57 are both cylinders, and are respectively provided with a first lever 561 and a second lever 571 for driving the movable clamp 22 .

[0067] Meanwhile, a support block 24 is fixedly connected to the side of the movable clamp 22. The support block 24 is provided with a groove 241 opposite to the limiting groove 221. The second sleeve mechanism 5 also includes a tube pressing block 58 that is movably engaged above the support block 24, and a fourth drive device 59 for driving the tube pressing block 58. The fourth drive device 59 can be a cylinder. The fourth drive device 59 drives the tube pressing block 58 to move up and down, thereby flattening the raised end of the wire harness A.

[0068] In a further optimized technical solution, the heat shrink tube blowing device may further be provided with a heat shrink tube blowing mechanism 6 located downstream of the second sleeve mechanism 5 .

[0069] See also Figure 15, which is the heat shrink tube blowing mechanism 6 of the present invention:

[0070] The heat shrink tubing blowing mechanism 6 includes a third heat gun 61 and a single-axis module 62 for driving the third heat gun 61 horizontally. By driving the third heat gun 61 with the single-axis module 62, the entire wire harness a is heated and tightened to its maximum possible state. The single-axis module 62 can be a linear motor or similar device capable of producing linear reciprocating motion.

[0071] See also Figure 2 The machine 1 is mounted on a turntable 11, on which several jigs 2 are arranged at equal angles. The aforementioned wire management mechanism 3, first tube sleeve mechanism 4, second tube sleeve mechanism 5, and heat shrink tubing blowing mechanism 6 are all located to the side of the turntable 11. The rotation of the turntable 11 drives the jigs 2 to pass through each mechanism in sequence and perform corresponding actions. The horizontal movement within each mechanism actually occurs radially along the turntable 11. This allows the various mechanisms to be evenly distributed on the machine 1, preventing the assembly line from being too long and occupying a large area.

[0072] In addition, the heat shrink tubing blowing equipment also includes a control panel, a power supply mechanism, etc. This is a conventional design and will not be described in detail here.

[0073] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A heat shrink tubing blowing device, characterized by: It includes a machine platform, a plurality of jigs installed on the machine platform, a wire management mechanism, and a first sleeve mechanism, wherein the jigs pass through the wire management mechanism and the first sleeve mechanism in sequence according to the production process; The fixture includes a fixed fixture for fixing the first end of the wiring harness, and a movable fixture that moves horizontally relative to the fixed fixture; a limiting groove for limiting the connecting wire is provided at the clamping mouth of the movable fixture; The wire management mechanism includes a first driving device for driving the movable clamp to move horizontally, a first clamping jaw at the same height as the clamping opening of the fixed clamp, and a second driving device for driving the first clamping jaw to move horizontally; The first sleeve mechanism includes a first feeding device for providing a heat shrink tube, a first clamping device for clamping the heat shrink tube, and a first hot air gun; the first clamping device sleeves the heat shrink tube provided by the first feeding device onto the second end of the wiring harness, and the first hot air gun heats the heat shrink tube so that it shrinks due to the heat.

2. The heat shrink tubing blowing device according to claim 1, characterized in that: The jig further includes a jig base, on which a first slide rail is provided; the fixed fixture is mounted on the jig base and is located at the end of the first slide rail; the movable fixture is slidably fitted on the first slide rail.

3. The heat shrink tubing blowing device according to claim 1, characterized in that: The output end of the first driving device is provided with a push plate, and the push plate is driven by the first driving device to move and abut against the lower end side surface of the movable clamp.

4. The heat shrink tubing blowing device according to claim 1, wherein: The first feeding device includes a feeding wheel driven by a first servo motor, a driven wheel opposite to the feeding wheel, and a cutter arranged in the output direction of the feeding wheel, which is used to cut the heat shrink tube into a fixed length.

5. The heat shrink tubing blowing device according to claim 4, characterized in that: The first feeding device also includes a sleeve base for installing the first servo motor, driven wheel and cutter, and a guide wheel arranged in the input direction of the feeding wheel; guide tubes are provided in the input direction and output direction of the feeding wheel.

6. The heat shrink tubing blowing device according to claim 1, characterized in that: The first clamping device includes a second clamping jaw for clamping the heat shrink tube, a clamping jaw frame for mounting the second clamping jaw, a screw module for driving the clamping jaw frame, and a second servo motor for driving the screw module.

7. The heat shrink tubing blowing device according to claim 6, characterized in that: The first clamping and feeding device also includes a pipe feeding base for installing the screw module; a sensor piece is provided on the clamping claw frame; a photoelectric sensor for the movable cooperation of the sensor piece is provided on the pipe feeding base for detecting the position of the second clamping claw and the clamping claw frame.

8. The heat shrink tubing blowing device according to claim 1, characterized in that: It also includes a second sleeve mechanism located downstream of the first sleeve mechanism; the second sleeve mechanism includes a second feeding device for providing a heat shrink tube, a second clamping device for clamping the heat shrink tube, and a second hot air gun; the second clamping device sleeves the heat shrink tube provided by the second feeding device onto the middle part of the wiring harness, and the second hot air gun heats the heat shrink tube so that it shrinks due to the heat.

9. The heat shrink tubing blowing device according to claim 8, characterized in that: The second sleeve mechanism also includes a third clamping jaw that is movably engaged between the fixed clamp and the movable clamp along the up and down directions, a third driving device for driving the third clamping jaw, and an upper clamping device and a lower clamping device for separating the movable clamp up and down; a support block is fixedly connected to the side of the movable clamp, and the support block is provided with a groove opposite to the limit groove; the second sleeve mechanism also includes a tube pressing block that is movably engaged above the support block, and a fourth driving device for driving the tube pressing block.

10. The heat shrink tubing blowing device according to claim 8, characterized in that: It also includes a heat shrink tube blowing mechanism located downstream of the second sleeve mechanism; the heat shrink tube blowing mechanism includes a third hot air gun and a single-axis module for driving the third hot air gun to move horizontally.

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