Wire harness thermal shrinkage outer sheath thermal shrinkage device

Abstract

The utility model discloses a thermal shrinkage device for a thermal shrinkage outer sheath of a wire harness, which is used for performing thermal shrinkage processing on the thermal shrinkage outer sheath of the wire harness and comprises a workbench, a first winding drum and a second winding drum are respectively arranged on two sides of the workbench, the first winding drum is used for winding the wire harness before thermal shrinkage and the thermal shrinkage outer sheath, and the second winding drum is used for winding the thermal shrinkage outer sheath before thermal shrinkage. The thermal shrinkage outer sheath is arranged on the periphery of the wire harness in a sleeving manner, and the second winding drum is used for winding the wire harness subjected to thermal shrinkage processing and the thermal shrinkage outer sheath; the first winding drum and the second winding drum can rotate in the same direction; a thermal shrinkage bin is arranged in the middle of the workbench, and a conveying roller assembly is arranged at the bottom of the interior of the thermal shrinkage bin and used for conveying wire harnesses. A plurality of hot air openings are formed in the side wall of the thermal shrinkage bin, are distributed in the circumferential direction of the radial side face of the thermal shrinkage bin and are used for erecting hot air guns to convey hot air into the thermal shrinkage bin.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness heat shrinkage processing equipment, in particular to a wire harness heat shrinkage outer sheath heat shrinkage device. Background Art

[0002] A heat shrink outer sheath is often added outside the wiring harness to protect the internal wiring harness structure and serve as insulation. Generally, the heat shrink outer sheath of the wiring harness is made of heat shrinkable material. When the heat shrink outer sheath reaches a specific temperature, the heat shrink outer sheath will shrink inward to achieve the purpose of wrapping the wiring harness.

[0003] There are very high requirements for the processing quality and appearance quality of the finished wire harness, namely: 100% conformity of single product and ≥99.9% of batch qualification rate. Any quality defects will lead to serious consequences.

[0004] Currently, heat shrinking is a common method for processing heat-shrinkable outer sheaths for wire harnesses. However, especially for processing heat-shrinkable outer sheaths for large-diameter and extra-long wire harnesses, the wire harness to be processed is usually placed in a heat shrink tank and processed collaboratively by five operators: two operators hold three hot air guns to heat the heat-shrinkable outer sheath 360°; another operator feeds the material; another operator pulls and collects the material; and the last operator coils and winds up the finished product.

[0005] This processing method has the following problems and defects:

[0006] 1. It takes up a lot of human resources, has low efficiency and high processing costs;

[0007] 2. It is difficult for unnamed staff to work together in the process. Once the collaboration is not good, it is very easy to cause quality problems in the heat shrink processing of the heat shrink outer sheath of the wire harness, such as low heat shrink uniformity;

[0008] 3. During the processing, the heat shrink outer sheath of the wire harness slides and rubs against the heat shrink groove, which can easily cause defects in the appearance quality of the wire harness;

[0009] 4. The heat shrink processing temperature of the wire harness heat shrink outer sheath is difficult to be evenly applied to the wire harness heat shrink outer sheath, resulting in unstable heat shrink processing quality.

[0010] There are many defects and deficiencies in the existing heat shrinking methods for heat shrinking outer sheaths of large-diameter and ultra-long wire harnesses, so as to improve the processing efficiency and the qualified rate of finished products. Utility Model Content

[0011] The purpose of the utility model is to provide a heat shrink device for a heat shrinkable outer sheath of a wire harness, so as to solve the technical problems in the prior art that the method commonly used for processing the heat shrinkable outer sheath of a wire harness requires the cooperation of multiple people, and the low degree of cooperation between the operators easily leads to low processing efficiency and unstable processing quality of the heat shrinkable outer sheath of the wire harness.

[0012] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0013] The utility model discloses a heat shrinking device for a heat shrinkable outer sheath of a wire harness, which is used for heat shrinking the heat shrinkable outer sheath of the wire harness, comprising a workbench, with a first reel and a second reel respectively provided on both sides of the workbench, the first reel being used for winding the wire harness and the heat shrinkable outer sheath before heat shrinkage, the heat shrinkable outer sheath being sleeved on the outer periphery of the wire harness, and the second reel being used for winding the wire harness and the heat shrinkable outer sheath after heat shrinkage;

[0014] The first reel and the second reel can rotate in the same direction;

[0015] A heat shrinking chamber is provided in the middle of the workbench, and a conveying roller assembly is provided at the bottom of the heat shrinking chamber for conveying the wire harness;

[0016] The side wall of the heat shrink chamber is provided with a plurality of hot air outlets, each of which is distributed circumferentially along the radial side of the heat shrink chamber. Each hot air outlet is used to set up a hot air gun to transport hot air into the heat shrink chamber.

[0017] The working principle of the present invention is: in view of the situation that the heat shrinkable outer sheath of the wire harness is made of heat shrinkable material, a heat shrinking device for the heat shrinkable outer sheath of the wire harness is invented, and the wire harness with the heat shrinkable outer sheath is wound by the first reel and the second reel, so that the wire harness with the heat shrinkable outer sheath can pass through the heat shrinking bin at a relatively stable speed. At the same time, after a hot air gun is set up at multiple hot air outlets, hot air is delivered to the internal space of the heat shrinking bin to heat the heat shrinking outer sheath passing through the heat shrinking bin, so that the heat shrinkable outer sheath is circumferentially heated and shrunk outside the wire harness, thereby realizing the heat shrinkage processing of the heat shrinkable outer sheath on the outside of the wire harness, and facilitating more stable control of the temperature of the heat shrinkage processing of the heat shrinkable outer sheath, thereby further helping to ensure the stability and quality of the heat shrinkage processing.

[0018] Preferably, the first reel and the second reel are detachably arranged on both sides of the workbench.

[0019] As a specific implementation method of detachably arranging the first reel and the second reel on both sides of the workbench, a first mounting bracket and a second mounting bracket are respectively arranged on both sides of the workbench, and the first mounting bracket and the second mounting bracket are respectively detachably connected to both sides of the workbench.

[0020] Preferably, the first reel and the second reel are fixedly arranged on both sides of the workbench.

[0021] Preferably, the air outlet end of each of the hot air vents faces the outer periphery of the heat shrinkable outer sheath.

[0022] Preferably, the heat shrink bin is a cylindrical structure, comprising an upper half cylinder and a lower half cylinder; the side of the upper half cylinder is hinged to the side of the lower half cylinder, and the upper half cylinder can rotate around the hinge; this design is to make it more convenient to put the wire harness with a heat shrink outer sheath into or take it out of the heat shrink bin, so that whether it is to put a new wire harness with a heat shrink outer sheath into the heat shrink bin for new processing, or to take out the wire harness from the heat shrink bin after a temporary shutdown or work stoppage, the operation is more convenient.

[0023] The lower semi-cylinder is welded to the upper surface of the workbench via a support. A conveyor roller assembly is mounted at the bottom of the lower semi-cylinder. This conveyor roller assembly comprises multiple rotating rollers, each rotatably connected to the sidewalls of the lower semi-cylinder. This prevents rolling friction on the wire harness as it moves within the heat shrink chamber, while preventing sliding friction from damaging the surface quality of the heat shrink jacket. Furthermore, the retractable design of the upper and lower semi-cylinders of the heat shrink chamber allows for convenient operation by opening the upper semi-cylinder when installing, repairing, or replacing the conveyor roller assembly.

[0024] Preferably, the number of the hot air vents is three, and the three hot air vents are evenly distributed along the radial side of the heat shrink chamber. In this way, the heat shrink outer sheath passing through the heat shrink chamber is heated simultaneously by the three hot air vents evenly distributed along the radial side of the heat shrink chamber, so that the heat shrink outer sheath is heated and circumferentially shrunk more evenly.

[0025] Preferably, both ends of the heat shrink chamber are covered with insulation curtains, the outer edges of each insulation curtain being fixed to the edges of the corresponding heat shrink chamber ends; each insulation curtain has multiple sectors that can be spliced ​​together to form a circle, and the center of the insulation curtain has an opening for the wiring harness and the heat shrink outer sheath to pass through, thereby maintaining a high temperature field in the heat shrink chamber with minimal temperature fluctuations.

[0026] Preferably, a transmission component is provided on the workbench, and a first rotating shaft and a second rotating shaft are fixed to the centers of the first reel and the second reel respectively; a first driving disk and a second driving disk are fixed to the ends of the first rotating shaft and the second rotating shaft respectively; the transmission component is connected to the first driving disk and the second driving disk respectively through a first belt and a second belt transmission, and the transmission component is connected to the output end of the driving motor, and the driving motor can drive the transmission component to rotate; and then drive the first belt and the second belt to rotate, and then drive the first driving disk and the second driving disk to rotate at the same time, and then drive the first reel and the second reel to rotate.

[0027] Preferably, the workbench is also integrated with a power supply control power supply for supplying power to the drive motor and the hot air gun. The control panel of the power supply control power supply is arranged on the side of the workbench and is used to switch the drive motor and the hot air gun. This facilitates on-site operation. At the same time, integrating the power supply control power supply into the workbench is also more conducive to the integration and miniaturization of the device.

[0028] The technical solution of the utility model has the following beneficial effects:

[0029] The heat shrink device for the heat shrinkable outer sheath of a wire harness of the present invention is provided with a special heat shrinking chamber during the whole process of heat shrinking the heat shrinkable outer sheath of a wire harness with large diameter and extra-long length, and performs multi-directional heating to increase the temperature in the heat shrinking chamber and maintain it at a relatively high temperature level. It can be easily completed by only one operator, which not only avoids the technical problems of low processing efficiency and unstable processing quality of the heat shrinkable outer sheath of the wire harness caused by poor coordination among multiple people and low cooperation between operators in the existing technical processing method, but also reduces the occupation of human resources, thereby improving product quality, product qualification rate, production efficiency, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings, in which:

[0031] Figure 1 This is a schematic structural diagram of a heat shrink device for a heat shrinkable outer sheath of a wire harness according to the present invention.

[0032] Figure 2 This is a schematic structural diagram of a heat shrink device for a heat shrinkable outer sheath of a wire harness according to the present invention.

[0033] Figure 3 This is a schematic structural diagram of the thermal insulation curtain of the present utility model.

[0034] Figure 4 This is one embodiment of the number of hot air outlets of the present invention.

[0035] Explanation of the accompanying drawings: 100, first reel; 101, first drive disk; 102, first rotating shaft; 200, heat shrinkage chamber; 201, conveying roller assembly; 202, first hot air outlet; 203, second hot air outlet; 204, third hot air outlet; 205, thermal insulation curtain; 300, second reel; 301, second drive disk; 302, second rotating shaft; 400, drive motor; 401, transmission component; 500, workbench; 501, first mounting bracket; 502, second mounting bracket; 503, control panel for power supply control. DETAILED DESCRIPTION

[0036] In order to better understand the purpose, structure and function of the present invention, the following is a further detailed description of a heat shrink device for a heat shrinkable outer sheath of a wire harness in conjunction with the accompanying drawings.

[0037] The utility model can be applied to the heat shrinkage processing of large-diameter and extra-long wire harness heat shrinkable outer sheaths, solving the technical problems in the prior art that the processing method of the wire harness heat shrinkable outer sheath requires the cooperation of multiple people, and the low degree of coordination between the operators easily leads to low processing efficiency and unstable processing quality of the wire harness heat shrinkable outer sheath.

[0038] See also Figure 1 and Figure 2 , Based on the technical problems solved above, the utility model discloses a heat shrinking device for a heat shrinkable outer sheath of a wire harness, which is used for heat shrinking the heat shrinkable outer sheath of a wire harness, comprising a workbench 500, wherein a first reel 100 and a second reel 300 are respectively provided on both sides of the workbench 500, the first reel 100 being used for winding the wire harness and the heat shrinkable outer sheath before heat shrinkage, the heat shrinkable outer sheath being sleeved on the outer periphery of the wire harness, and the second reel 300 being used for winding the wire harness and the heat shrinkable outer sheath after heat shrinkage; the first reel 100 and the second reel 300 are capable of rotating in the same direction; a heat shrinking chamber 200 is provided in the middle of the workbench 500, and a conveying roller assembly 201 is provided at the bottom of the heat shrinking chamber 200 for conveying the wire harness; a plurality of hot air outlets are provided on the side walls of the heat shrinking chamber 200, and each hot air outlet is distributed circumferentially along the radial side of the heat shrinking chamber 200, and each hot air outlet is used to set up a hot air gun to convey hot air to the inside of the heat shrinking chamber 200.

[0039] The working principle of the present invention is: in view of the situation that the heat shrinkable outer sheath of the wire harness is made of heat shrinkable material, a heat shrinking device for the heat shrinkable outer sheath of the wire harness is invented, and the wire harness with the heat shrinkable outer sheath is wound by the first reel 100 and the second reel 300, so that the wire harness with the heat shrinkable outer sheath can pass through the heat shrink bin 200 at a relatively stable speed. At the same time, after setting up a hot air gun at multiple hot air outlets, hot air is delivered to the internal space of the heat shrink bin 200 to heat the heat shrinkable outer sheath passing through the heat shrink bin 200, so that the heat shrinkable outer sheath is circumferentially heated and shrunk outside the wire harness, thereby realizing the heat shrinkage processing of the heat shrinkable outer sheath on the outside of the wire harness, and facilitating more stable control of the temperature of the heat shrinkage processing of the heat shrinkable outer sheath, thereby further helping to ensure the stability and quality of the heat shrinkage processing.

[0040] The heat shrink device for the heat shrinkable outer sheath of a wire harness of the present invention can easily complete the entire heat shrinkage process of the heat shrinkable outer sheath of a wire harness with large diameter and extra-long length by only one operator. It not only avoids the technical problems of low processing efficiency and unstable processing quality of the heat shrinkable outer sheath of the wire harness caused by poor coordination among multiple operators and low cooperation between operators in the existing technical processing method, but also reduces the occupation of human resources, thereby improving product quality, product qualification rate, production efficiency, and reducing production costs.

[0041] In a specific implementation, the first reel 100 and the second reel 300 are detachably mounted on both sides of the workbench 500, or fixedly mounted on both sides of the workbench 500. As a specific implementation of the detachable mounting of the first reel 100 and the second reel 300 on both sides of the workbench 500, a first mounting bracket 501 and a second mounting bracket 502 are respectively mounted on both sides of the workbench 500, and the first mounting bracket 501 and the second mounting bracket 502 are detachably connected to both sides of the workbench 500.

[0042] The specific implementation of the detachable connection method is screw connection, clip connection or plug connection.

[0043] During specific implementation, the air outlet end of each of the hot air vents faces the outer periphery of the heat shrinkable outer sheath.

[0044] In specific implementation, each hot air outlet is respectively extended with a hot air gun mounting tube for plugging the air outlet pipe of the hot air gun to transport hot air to the inside of the heat shrink bin 200; specifically, the air outlet pipe of the hot air gun is screwed to the hot air gun mounting tube.

[0045] Specifically, the outer surface of the heat shrink bin 200 is covered with a flexible high-temperature resistant insulation board for thermal insulation protection, which reduces the heat dissipation rate, improves the thermal insulation capacity of the side wall of the heat shrink bin 200, reduces heat loss, and is beneficial to improving the stability of the heat shrink processing of the heat shrink outer sheath on the outside of the wire harness.

[0046] For specific implementation, please refer to Figure 1 The heat shrink chamber 200 is a cylindrical structure, comprising an upper half-cylinder and a lower half-cylinder. The side of the upper half-cylinder is hinged to the side of the lower half-cylinder, and the upper half-cylinder can rotate around the hinge to open or close the upper half-cylinder. The design of the upper and lower half-cylinders of the heat shrink chamber 200 is openable and retractable to facilitate the insertion and removal of wire harnesses covered with heat shrink outer sheaths into and out of the heat shrink chamber 200. This makes operation more convenient, whether re-inserting a new wire harness covered with a heat shrink outer sheath into the heat shrink chamber 200 for new processing or removing a wire harness from the heat shrink chamber 200 after a temporary shutdown or work stoppage.

[0047] The lower semi-cylinder is welded to the upper surface of the workbench 500 via a support. A conveyor roller assembly 201 is mounted at the bottom of the lower semi-cylinder. This conveyor roller assembly 201 comprises multiple rotating rollers, each rotatably connected to the sidewalls of the lower semi-cylinder. This ensures that the wire harness is subjected to rolling friction as it moves within the heat shrink chamber 200, preventing sliding friction from damaging the surface quality of the heat shrink outer sheath. Furthermore, the retractable design of the upper and lower semi-cylinders of the heat shrink chamber 200 allows for easy installation, maintenance, or replacement of the conveyor roller assembly 201 by opening the upper semi-cylinder, making it more convenient to operate.

[0048] In specific implementation, there are three hot air vents, which are evenly distributed along the radial side of the heat shrink chamber. In this way, the heat shrink outer sheath passing through the heat shrink chamber is heated at the same time by the three hot air vents evenly distributed along the radial side of the heat shrink chamber, so that the heat shrink outer sheath shrinks more evenly along the circumference. Figure 1 and Figure 2 and Figure 4 The three hot air outlets are the first hot air outlet 202, the second hot air outlet 203 and the third hot air outlet 204; wherein, the first hot air outlet 202 is arranged on the upper semi-cylinder, and the second hot air outlet 203 and the third hot air outlet 204 are symmetrically arranged on the lower semi-cylinder; wherein, the circumferential distribution angles of the first hot air outlet 202 and the second hot air outlet 203 and the third hot air outlet 204 along the radial side of the heat shrink warehouse 200 are both 120°, and the circumferential distribution angle between the second hot air outlet 203 and the third hot air outlet 204 along the radial side of the heat shrink warehouse 200 is also 120°.

[0049] Specifically, as one embodiment of the heat shrink bin 200 , the heat shrink bin 200 is formed by rolling a 1.2 mm thick stainless steel plate.

[0050] For specific implementation, please refer to Figure 3 The heat shrink chamber 200 is covered at both ends with insulation curtains 205. The outer edges of each insulation curtain 205 are fixed to the edges of the corresponding ends of the heat shrink chamber 200. Each insulation curtain 205 has multiple sectors that can be spliced ​​together to form a circle. The center of the insulation curtain 205 has an opening for the wiring harness and the heat shrink outer sheath to pass through. This maintains the temperature field inside the heat shrink chamber 200 at a high level with minimal temperature fluctuations.

[0051] In a specific implementation, the thermal insulation curtain 205 is a flexible curtain made of flexible high-temperature resistant thermal insulation board material to form 12 fan-shaped surfaces with a central angle of 30°, and the arc edges of each fan-shaped surface are fixed to the two end edges of the heat shrinking chamber 200.

[0052] During specific implementation, a transmission component 401 is provided on the workbench 500, and the first rotating shaft 102 and the second rotating shaft 302 are fixed at the centers of the first reel 100 and the second reel 300 respectively; the first driving disk 101 and the second driving disk 301 are fixed at the ends of the first rotating shaft 102 and the second rotating shaft 302 respectively; the transmission component 401 is connected to the first driving disk 101 and the second driving disk 301 respectively through the first belt and the second belt transmission, and the transmission component 401 is connected to the output end of the driving motor 400, and the driving motor 400 can drive the transmission component 401 to rotate; and then drive the first belt and the second belt to rotate, and then drive the first driving disk 101 and the second driving disk 301 to rotate at the same time, and then drive the first reel 100 and the second reel 300 to rotate.

[0053] Specifically, the driving motor 400 can rotate forward and reverse, and the first reel 100 and the second reel 300 can follow the forward or reverse rotation of the driving motor 400 to serve as a take-up reel or a pay-out reel with different functions, so as to facilitate operation.

[0054] In specific implementation, a control panel 503 for power supply control is provided on the side of the workbench 500, which is used to switch the drive motor 400 and the hot air gun, so as to facilitate on-site operation and facilitate the integration and miniaturization of the device.

[0055] During specific implementation, the workbench 500 is also integrated with a power supply control power supply for powering the drive motor 400 and the hot air gun. The control panel 503 of the power supply control power supply is set on the side of the workbench and is used to switch the drive motor and the hot air gun. This facilitates on-site operation. At the same time, integrating the power supply control power supply into the workbench is also more conducive to the integration and miniaturization of the device.

[0056] The working process of the present invention is as follows: first, the wire harness to be processed is wound on the first reel 100. At this time, the heat shrink outer sheath is covered on the surface of the wire harness. When the heat shrink outer sheath of the wire harness needs to be heat-shrunk, the drive motor 400 is turned on to make the first reel 100 and the second reel 300 start to rotate in the same direction. Before the wire harness covered with the heat shrink outer sheath enters the heat shrink chamber 200, the hot air gun is turned on to raise the temperature inside the heat shrink chamber 200 to above the heat shrinkage critical temperature. Then, the first reel 100 is fed to the heat shrink chamber 200, so that the wire harness covered with the heat shrink outer sheath enters the heat shrink chamber 200 and is discharged from the other end of the heat shrink chamber 200. The heat shrink outer sheath passing through the heat shrink chamber 200 is heated so that the heat shrink outer sheath is circumferentially heated and shrunk on the outside of the wire harness, thereby realizing the heat shrinkage processing of the heat shrink outer sheath on the outside of the wire harness. After the heat shrinkage processing, the wire harness is discharged from the heat shrink chamber 200 and wound onto the second reel 300 for collection.

[0057] The heat shrink device for the heat shrinkable outer sheath of a wire harness disclosed in the utility model has the following technical effects:

[0058] 1. The heat shrink device for the heat shrinkable outer sheath of the wire harness of the present invention is equipped with a special heat shrink chamber during the entire heat shrink process of the heat shrinkable outer sheath of the wire harness with large diameter and extra-long length, and performs multi-directional heating to increase the temperature in the heat shrink chamber and maintain it at a high temperature level. It can be easily completed by one operator, which not only avoids the technical problems of low processing efficiency and unstable processing quality of the heat shrinkable outer sheath of the wire harness due to poor coordination among multiple people and low cooperation between operators in the existing technical processing method, but also reduces the occupation of human resources, thereby improving product quality, product qualification rate, production efficiency, and reducing production costs.

[0059] 2. The heat shrink device for the heat shrinkable outer sheath of the wire harness of the present invention is practical and efficient, has a simple structure, low cost and is easy to operate.

[0060] 3. The heat shrinking device for the heat shrinkable outer sheath of a wire harness of the present invention can not only be used for the heat shrinking processing of the heat shrinkable outer sheath of a conventional wire harness, but can also be used for the heat shrinking processing of the heat shrinkable outer sheath of a wire harness of large diameter and extra-long length, and can exert its efficient and stable application effect; when the heat shrinking device for the heat shrinkable outer sheath of a wire harness of the present invention is used for the heat shrinking processing of the heat shrinkable outer sheath of a wire harness of large diameter and extra-long length, its advantages are more prominent than those of the existing technical processing methods.

[0061] 4. The heat shrink device for heat shrinkable outer sheath of wire harness of the present invention has been successfully applied to the actual production of heat shrinkage processing of heat shrinkable outer sheath of wire harness, and has also achieved the expected application effect of practicality, convenience, cost reduction, efficiency improvement, and stable quality improvement.

[0062] It will be understood that the present invention is described with reference to certain specific embodiments / examples. Those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments / examples without departing from the spirit and scope of the present invention. In light of the present invention, these features and embodiments / examples may be modified to suit specific circumstances and materials without departing from the spirit and scope of the present invention. The embodiments / examples described herein represent only a portion of the embodiments / examples of the present invention, and are not intended to be exhaustive. The components of the embodiments / examples of the present invention generally described and illustrated in the accompanying drawings may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments / examples of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments / examples of the present invention. Therefore, the present invention is not limited to the specific embodiments / examples disclosed herein. All other embodiments / examples deriving from the specific embodiments / examples disclosed herein without inventive effort by a person of ordinary skill in the art are intended to fall within the scope of protection of the present invention.

Claims

1. A heat shrink device for a heat shrinkable outer sheath of a wire harness, used for heat shrinking the heat shrinkable outer sheath of a wire harness, characterized in that: It includes a workbench, with a first reel and a second reel respectively provided on both sides of the workbench, the first reel being used for winding the wire harness before heat shrinkage and the heat shrink outer sheath, the heat shrink outer sheath being sleeved on the outer periphery of the wire harness, and the second reel being used for winding the wire harness after heat shrinkage and the heat shrink outer sheath; the first reel and the second reel can rotate in the same direction; a heat shrink bin is provided in the middle of the workbench, and a conveying roller assembly is provided at the bottom inside the heat shrink bin for conveying the wire harness; a plurality of hot air outlets are provided on the side walls of the heat shrink bin, and the hot air outlets are circumferentially distributed along the radial side of the heat shrink bin, and the hot air outlets are used to set up a hot air gun to convey hot air to the inside of the heat shrink bin.

2. The heat shrink device for heat shrinking outer sheath of a wire harness according to claim 1, characterized in that: The first reel and the second reel are detachably arranged on both sides of the workbench.

3. The heat shrink device for heat shrinking outer sheath of a wire harness according to claim 2, characterized in that: A first mounting bracket and a second mounting bracket are respectively provided on both sides of the workbench, and the first mounting bracket and the second mounting bracket are detachably connected to the two sides of the workbench.

4. The heat shrink device for heat shrinking outer sheath of a wire harness according to claim 1, characterized in that: The first reel and the second reel are fixedly arranged on both sides of the workbench.

5. The heat shrink device for heat shrinking outer sheath of a wire harness according to claim 2 or 4, characterized in that: The air outlet end of each of the hot air outlets faces the outer periphery of the heat shrinkable outer sheath.

6. The heat shrink device for heat shrinking outer sheath of a wire harness according to claim 2 or 4, characterized in that: The heat shrink bin is a cylindrical structure, comprising an upper semi-cylinder and a lower semi-cylinder; the side of the upper semi-cylinder is hinged to the side of the lower semi-cylinder, and the upper semi-cylinder can rotate around the hinge; The lower semi-cylinder is welded to the upper surface of the workbench through a support. A conveying roller assembly is installed at the bottom of the lower semi-cylinder. The conveying roller assembly includes a plurality of rotating rollers, and each rotating roller is rotatably connected to the side wall of the lower semi-cylinder.

7. The heat shrink device for heat shrinking outer sheath of a wire harness according to claim 6, characterized in that: The number of the hot air vents is three, and the three hot air vents are evenly distributed along the radial side of the heat shrink bin.

8. The heat shrink device for heat shrinking outer sheath of a wire harness according to claim 6, characterized in that: The two ends of the heat shrink bin are respectively covered with insulation curtains, and the outer edges of each insulation curtain are respectively fixed to the edge positions of the corresponding ends of the heat shrink bin; each insulation curtain has multiple fan surfaces, and the fan surfaces of each insulation curtain can be spliced ​​into a circle, and the center of the insulation curtain has an opening for allowing the wire harness and the heat shrink outer sheath to pass through it.

9. The heat shrink device for heat shrinking outer sheath of a wire harness according to claim 1, characterized in that: A transmission component is provided on the workbench, and a first rotating shaft and a second rotating shaft are fixed to the centers of the first reel and the second reel respectively; a first driving disk and a second driving disk are fixed to the ends of the first rotating shaft and the second rotating shaft respectively; the transmission component is connected to the first driving disk and the second driving disk respectively through a first belt and a second belt transmission, and the transmission component is connected to the output end of the drive motor, and the drive motor can drive the transmission component to rotate.

10. The heat shrink device for heat shrinking outer sheath of a wire harness according to claim 9, characterized in that: The workbench is also integrated with a power supply control power supply for supplying power to the drive motor and the hot air gun, and the control panel of the power supply control power supply is arranged on the side of the workbench.

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