A harness insulation layer heat shrinkage processing device

The wire harness insulation heat shrinking processing device, designed with a rotating drum and annular nozzle, solves the problem of uneven heating, achieves uniform heating and rapid shaping of the insulation layer, and improves the insulation performance and service life of the wire harness.

CN224934542UActive Publication Date: 2026-11-03NANJING UNIWORKS ELECTRONICS
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Patent Information

Application Number
CN202522302981.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-30
Publication Date
2026-11-03
Estimated Expiration
2035-10-30

AI Technical Summary

Technical Problem

Existing heat shrinking equipment for wire harness insulation layers often results in uneven heating, which can lead to localized overheating or insufficient heat shrinking of the insulation layer, affecting the insulation performance and the lifespan of the wire harness.

Method used

The design employs a rotating drum and a ring-shaped nozzle to achieve all-round coverage of the insulation layer with hot air, greatly improving heating uniformity. The cooling components enable rapid shaping, ensuring that the insulation layer adheres tightly to the wire harness.

Benefits of technology

It achieves uniform heating and rapid shaping of the insulation layer, improving the insulation performance and service life of the wire harness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of harness insulation layer heat shrinkage processing device.The harness insulation layer heat shrinkage processing device includes: bottom plate, two moving assemblies and two processing mechanisms are equipped on the bottom plate, two moving assemblies are symmetrically distributed left and right, and two processing mechanisms are located between two moving assemblies;The processing mechanism includes mounting block, rotating drum, multiple rows of spray heads, round frame, fixed base, motor two, gear one and gear two, the mounting block is fixedly installed on the top of bottom plate, and the rotating drum is rotatably installed on the mounting block.The harness insulation layer heat shrinkage processing device provided by the utility model can make hot air cover the harness insulation layer in all directions and without dead angle through rotating drum rotation+annular spray head combination design, so that the heating uniformity is greatly improved, and the defects of local overheating or local heating deficiency can be effectively avoided, thereby ensuring that the insulation layer closely adheres to the harness, and improving the insulation performance and service life of the harness.
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Description

Technical Field

[0001] This utility model belongs to the technical field of wire harness processing equipment, and in particular relates to a heat shrinking processing device for wire harness insulation layer. Background Technology

[0002] A wire harness is an assembly consisting of copper stamped contact terminals (connectors) crimped to wires and cables, and then covered with a molded insulator or an outer metal shell to achieve circuit connection. During wire harness manufacturing, to ensure the insulation performance and service life of the wire harness, an insulation layer is usually wrapped around the wires, and the insulation layer often needs to be heat-shrinked to ensure that the insulation layer adheres tightly to the surface of the wires.

[0003] Currently, existing wire harness insulation heat shrinking processing devices have certain defects in use. Traditional heat shrinking methods mostly use manual handheld hot air guns to heat the insulation layer. This method not only results in uneven heating, but also easily leads to local overheating and damage to the insulation layer or insufficient heat shrinking, affecting the insulation effect and quality of the wire harness. Therefore, it is necessary to provide a new wire harness insulation heat shrinking processing device to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a wire harness insulation layer heat shrinking processing device that uses a combination design of rotating drum and annular nozzle to allow hot air to cover the wire harness insulation layer in all directions without dead angles, thereby greatly improving the heating uniformity and effectively avoiding defects such as local overheating or insufficient heating. This ensures that the insulation layer is tightly attached to the wire harness, thereby improving the insulation performance and service life of the wire harness.

[0005] To solve the above-mentioned technical problems, the wire harness insulation layer heat shrinking processing device provided by this utility model includes: a base plate, on which two moving components and two processing mechanisms are provided, the two moving components are symmetrically distributed from left to right, and the two processing mechanisms are located between the two moving components; The processing mechanism includes a mounting block, a rotating cylinder, multiple rows of nozzles, a circular frame, a fixed base, a second motor, a first gear, and a second gear. The mounting block is fixedly mounted on the top of the base plate. The rotating cylinder is rotatably mounted on the mounting block and has a cavity. Multiple rows of nozzles are arranged in a circular array on the inner wall of the rotating cylinder and are all connected to the cavity. The circular frame is rotatably mounted on one outer wall of the rotating cylinder and is connected to the cavity. The fixed base is fixedly mounted on the top of the base plate and the top of the fixed base is fixedly connected to the outer wall of the circular frame. The second motor is fixedly mounted on the top of the base plate, the first gear is fixedly mounted on the output shaft of the second motor, the second gear is fixedly sleeved on the rotating drum, and the second gear meshes with the first gear.

[0006] As a further embodiment of this utility model, a heating assembly is provided on the base plate. The heating assembly includes a heating box, a heating tube, and a fan. The heating box is installed on the top of the base plate, and the heating tube is disposed inside the heating box.

[0007] As a further embodiment of this utility model, the fan is installed on the top of the base plate and located on one side of the heating box, and an exhaust pipe is installed on the exhaust port of the fan, with one end of the exhaust pipe connected to the outer wall of one side of the heating box.

[0008] As a further embodiment of this utility model, a cooling assembly is provided on the base plate. The cooling assembly includes a cooling fan. An air inlet pipe is installed on one side of the outer wall of the circular frame in both processing mechanisms. One end of the two air inlet pipes is connected to one side of the outer wall of the heating box and to the exhaust port of the cooling fan.

[0009] As a further embodiment of this utility model, the moving component includes a vertical plate, two horizontal plates, two bases, two guide wheels, and a motor. The vertical plate is fixedly installed on the top of the base plate. The two horizontal plates are symmetrically installed on one outer wall of the vertical plate. The two bases are respectively fixedly installed on the outer walls of the two horizontal plates that are close to each other. The two guide wheels are respectively rotatably installed on the two bases. The motor is fixedly installed on the corresponding base, and the output shaft of the motor is fixedly connected to one end of the corresponding guide wheel.

[0010] Compared with related technologies, the wire harness insulation layer heat shrinking processing device provided by this utility model has the following beneficial effects: 1. This utility model, through the combination design of rotating drum and annular nozzle, can make hot air cover the wire harness insulation layer in all directions without dead angles, resulting in a significant improvement in heating uniformity. It can effectively avoid defects such as local overheating or insufficient local heating, thereby ensuring that the insulation layer is tightly attached to the wire harness, improving the insulation performance and service life of the wire harness. Attached Figure Description

[0011] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the assembly structure of the processing mechanism and some heating components in this utility model; Figure 3 This is a schematic diagram of the structure of some of the processing mechanisms in this utility model; Figure 4 This is a schematic diagram of the structure of some heating components in this utility model; Figure 5 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the structure of the movable component in this utility model.

[0013] Explanation of key symbols: In the diagram: 1. Base plate; 2. Moving component; 21. Vertical plate; 22. Horizontal plate; 23. Base; 24. Guide wheel; 25. Motor 1; 3. Machining mechanism; 31. Mounting block; 32. Rotary drum; 33. Cavity; 34. Nozzle; 35. Circular frame; 36. Fixed base; 37. Motor 2; 38. Gear 1; 39. Gear 2; 40. Heating box; 41. Heating tube; 42. Fan; 43. Exhaust pipe; 44. Inlet pipe; 5. Cooling fan. Detailed Implementation

[0014] Please refer to the following: Figures 1 to 6 ,in, Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the assembly structure of the processing mechanism and some heating components in this utility model; Figure 3 This is a schematic diagram of the structure of some of the processing mechanisms in this utility model; Figure 4 This is a schematic diagram of the structure of some heating components in this utility model; Figure 5 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the structure of the movable components in this utility model. The wire harness insulation layer heat shrinking processing device includes: a base plate 1, on which two movable components 2 and two processing mechanisms 3 are provided, the two movable components 2 are symmetrically distributed from left to right, and the two processing mechanisms 3 are located between the two movable components 2; The processing mechanism 3 includes a mounting block 31, a rotating cylinder 32, multiple rows of nozzles 34, a circular frame 35, a fixed base 36, a second motor 37, a first gear 38, and a second gear 39. The mounting block 31 is fixedly mounted on the top of the base plate 1. The rotating cylinder 32 is rotatably mounted on the mounting block 31. The rotating cylinder 32 is provided with a cavity 33. The multiple rows of nozzles 34 are arranged in a circular array on the inner wall of the rotating cylinder 32, and all of the multiple rows of nozzles 34 are connected to the cavity 33. The circular frame 35 is rotatably mounted on one side of the outer wall of the rotating cylinder 32, and the circular frame 35 is connected to the cavity 33. The fixed base 36 is fixedly mounted on the top of the base plate 1, and the top of the fixed base 36 is fixedly connected to the outer wall of the circular frame 35. The second motor 37 is fixedly installed on the top of the base plate 1, the first gear 38 is fixedly installed on the output shaft of the second motor 37, the second gear 39 is fixedly sleeved on the rotating drum 32, and the second gear 39 meshes with the first gear 38.

[0015] The motor 37 is started, which drives the gear 38 on its output shaft to rotate. The gear 38 meshes with the gear 39 fixedly sleeved on the rotating drum 32, thereby driving the rotating drum 32 to rotate stably on the mounting block 31. The hot air in the cavity 33 is evenly sprayed through the multiple rows of nozzles 34 in a ring array on the inner wall of the rotating drum 32 onto the insulation layer (heat shrink tubing) of the wire harness passing through the center of the rotating drum. Because the rotating drum 32 rotates continuously, the nozzles 34 can spray air and heat the heat shrink tubing from 360° all directions, thus avoiding the problem of only local heating in traditional handheld hot air guns and ensuring the uniform shrinkage of the heat shrink tubing.

[0016] The base plate 1 is provided with a heating assembly, which includes a heating box 40, a heating tube 41 and a fan 42. The heating box 40 is installed on the top of the base plate 1 and the heating tube 41 is disposed inside the heating box 40.

[0017] The fan 42 generates airflow, which enters the heating box 40 through the exhaust pipe 43 and is heated by the heating pipe 41. The heated air becomes hot air and enters the corresponding circular frame 35 through one of the air inlet pipes 44. Since the circular frame 35 is connected to the cavity 33 of the rotating drum 32, the hot air flows smoothly into the cavity 33.

[0018] The fan 42 is installed on the top of the base plate 1 and located on one side of the heating box 40. An exhaust pipe 43 is installed on the exhaust port of the fan 42, and one end of the exhaust pipe 43 is connected to the outer wall of one side of the heating box 40.

[0019] The base plate 1 is provided with a cooling assembly, which includes a cooling fan 5. One side of the outer wall of the circular frame 35 in the two processing mechanisms 3 is connected to an air inlet pipe 44. One end of the two air inlet pipes 44 is connected to one side of the outer wall of the heating box 40 and to the exhaust port of the cooling fan 5.

[0020] The heat-shrinked wire harness, continuously conveyed by the guide wheel 24, enters the second processing mechanism 3. The cooling fan 5 is started, and the ambient or low-temperature cold air generated by the cooling fan 5 enters the cavity 33 of the corresponding circular frame 35 and the rotating drum 32 through another air inlet pipe 44. Then, it is sprayed onto the heat-shrinked insulation layer through the nozzle 34. The cold air quickly removes the heat from the insulation layer, causing the heat-shrinked insulation layer to solidify and set quickly, tightly adhering to the surface of the wire harness. Finally, the set wire harness is output from between the guide wheels of the right-side moving component 2, and the entire heat-shrinking process is completed.

[0021] The moving component 2 includes a vertical plate 21, two horizontal plates 22, two bases 23, two guide wheels 24, and a motor 25. The vertical plate 21 is fixedly installed on the top of the base plate 1. The two horizontal plates 22 are symmetrically installed on one outer wall of the vertical plate 21. The two bases 23 are respectively fixedly installed on the outer walls of the two horizontal plates 22 that are close to each other. The two guide wheels 24 are respectively rotatably installed on the two bases 23. The motor 25 is fixedly installed on the corresponding base 23. The output shaft of the motor 25 is fixedly connected to one end of the corresponding guide wheel 24.

[0022] When the motor 25 is started, its output shaft drives the guide wheel 24 on the corresponding base 23 to rotate. Since the two guide wheels 24 are symmetrically distributed and close to the wire harness, the lower guide wheel 24 rotates and drives the wire harness to move through friction, so that the wire harness enters from between the guide wheels of the left moving component 2 and is smoothly transported between the two processing mechanisms 3, and ensures that the wire harness always passes through the center position of the rotating drum 32 to avoid conveying deviation.

[0023] The motor model includes, but is not limited to, 42HS40-1704; the fan model includes, but is not limited to, 400FZY2-D; and the cooling fan model includes, but is not limited to, CF-110.

[0024] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A heat-shrinking processing apparatus for wire harness insulation layers, characterized in that, include: A base plate, on which two moving components and two processing mechanisms are provided, the two moving components are symmetrically distributed from left to right, and the two processing mechanisms are located between the two moving components; The processing mechanism includes a mounting block, a rotating cylinder, multiple rows of nozzles, a circular frame, a fixed base, a second motor, a first gear, and a second gear. The mounting block is fixedly mounted on the top of the base plate. The rotating cylinder is rotatably mounted on the mounting block and has a cavity. Multiple rows of nozzles are arranged in a circular array on the inner wall of the rotating cylinder and are all connected to the cavity. The circular frame is rotatably mounted on one outer wall of the rotating cylinder and is connected to the cavity. The fixed base is fixedly mounted on the top of the base plate and the top of the fixed base is fixedly connected to the outer wall of the circular frame. The second motor is fixedly mounted on the top of the base plate, the first gear is fixedly mounted on the output shaft of the second motor, the second gear is fixedly sleeved on the rotating drum, and the second gear meshes with the first gear.

2. The wire harness insulation layer heat shrinking processing apparatus according to claim 1, characterized in that: The base plate is equipped with a heating assembly, which includes a heating box, a heating tube, and a fan. The heating box is installed on the top of the base plate, and the heating tube is installed inside the heating box.

3. The wire harness insulation layer heat shrinking processing apparatus according to claim 2, characterized in that: The fan is installed on the top of the base plate and on one side of the heating box. An exhaust pipe is installed on the exhaust port of the fan, and one end of the exhaust pipe is connected to the outer wall of one side of the heating box.

4. The wire harness insulation layer heat shrinking processing apparatus according to claim 3, characterized in that: The base plate is equipped with a cooling assembly, which includes a cooling fan. One side of the outer wall of the circular frame in both processing mechanisms is connected to an air inlet pipe. One end of the two air inlet pipes is connected to one side of the outer wall of the heating box and to the exhaust port of the cooling fan.

5. The wire harness insulation layer heat shrinking processing apparatus according to claim 1, characterized in that: The moving assembly includes a vertical plate, two horizontal plates, two bases, two guide wheels, and a motor. The vertical plate is fixedly installed on the top of the base plate. The two horizontal plates are symmetrically installed on one outer wall of the vertical plate. The two bases are respectively fixedly installed on the outer walls of the two horizontal plates that are close to each other. The two guide wheels are respectively rotatably installed on the two bases. The motor is fixedly installed on the corresponding base, and the output shaft of the motor is fixedly connected to one end of the corresponding guide wheel.