A small heat shrink machine

Abstract

This utility model discloses a small heat shrink machine comprising: a frame having a processing station for placing and heating wire harnesses; a first drive assembly disposed on the frame for driving a heat shrinking device to enter or exit the processing station along a first direction; and a second drive assembly disposed on the first drive assembly and controlled to move along the first direction by the first drive assembly, wherein the heat shrinking device is mounted on the second drive assembly and controlled to move along a second direction by the second drive assembly; wherein the heat shrinking device has at least a U-shaped cavity, and the top and bottom surfaces of the U-shaped cavity have at least two adjacent heating areas along the first direction, and the heating areas have heating structures for heat shrinking the wire harnesses; this utility model can solve the problems of traditional small heat shrink equipment in terms of heating uniformity, operational flexibility, adaptability, and overall efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wire harness heat shrinking equipment, specifically to a small heat shrink machine. Background Technology

[0002] Heat shrink tubing is a commonly used surface protection material in cable or wire harness processing. It mainly transforms low-density polyethylene from a linear structure to a three-dimensional network structure through electron beam or cobalt source radiation, and gives the material a "memory effect" through stretching or expansion. It is pre-sleeved onto the surface of the cable or wire harness at room temperature. After the cable or wire harness is prepared, its surface is uniformly heated by a hot air gun or suitable heating equipment. The heat shrink tubing can quickly shrink into a thin tube and stick tightly to the surface of the object it is attached to, thereby ensuring the insulation of the object and preventing corrosion from harsh environments such as salt spray, humidity, and mold.

[0003] In automotive wiring harness production, the terminal and mating parts of the wiring harness typically require heat shrink tubing to be wrapped around the wire surface. By heating the heat shrink tubing, it shrinks and completely adheres to the wire surface. Traditional small heat shrink equipment usually uses fixed or simple mobile heating devices. A common heating structure is a heat shrink device with a U-shaped heating cavity. This device moves to the location covering the wiring harness for heating. However, this structure has drawbacks. Because the open end of the U-shaped cavity is exposed to air during heating, it dissipates heat quickly, resulting in a temperature in this area that is significantly lower than the temperature inside the U-shaped cavity. This affects the quality and consistency of the wiring harness forming. Furthermore, the unidirectional movement of the heat shrink device limits its adaptability to wiring harnesses of different lengths. Utility Model Content

[0004] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a small heat shrink machine.

[0005] To achieve the above objectives, the technical solution adopted by this utility model includes: a frame having a processing station for placing and heating wire harnesses; a first drive assembly disposed on the frame for driving a heat shrinking device to enter or exit the processing station along a first direction; a second drive assembly disposed on the first drive assembly and controlled to move along the first direction by the first drive assembly, the heat shrinking device being mounted on the second drive assembly and controlled to move along a second direction by the second drive assembly; wherein, the heat shrinking device has at least a U-shaped cavity, the top and bottom surfaces of the U-shaped cavity having at least two adjacent heating areas along the first direction, and the heating areas having heating structures for heat shrinking the wire harnesses.

[0006] In the preferred embodiment of the above-mentioned small heat shrink machine, the U-shaped cavity of the heat shrink device has two heating areas, and the two heating areas have the same heating area along the first direction.

[0007] In the preferred embodiment of the above-mentioned small heat shrink machine, the first drive assembly includes at least a first linear module disposed within the frame, and the second drive assembly includes at least a second linear module disposed within the frame, wherein the second linear module can be moved by the first linear module along a first direction.

[0008] In the preferred embodiment of the above-mentioned small heat shrink machine, a support plate is provided on the processing station, and a plurality of wire clamps are arranged along a first direction on both sides of the support plate of the heat shrink device, forming a clamping space between adjacent wire clamps, and the portion of the support plate located between two sets of wire clamps passes through to form a heating window.

[0009] In the preferred embodiment of the above-mentioned small heat shrink machine, the frame is provided with a cooling device for accelerating the forming of the heated wire harness directly below the heating window of the support plate, and the cooling device is lower than the bottom surface of the heat shrink machine in the height direction.

[0010] In the preferred embodiment of the above-mentioned small heat shrink machine, the wire clamp is made of elastic rubber and is arranged in an arch shape.

[0011] In the preferred embodiment of the above-mentioned small heat shrink machine, the wire clamp is configured on the carrier plate to be position adjustable along the second direction.

[0012] In the preferred embodiment of the above-mentioned small heat shrink machine, the heating structure is an infrared ceramic plate.

[0013] In the preferred embodiment of the above-mentioned small heat shrink machine, the heat shrink device is provided with an air-cooling device for cooling the heating structure.

[0014] In the preferred embodiment of the above-mentioned small heat shrink machine, the second drive assembly or heat shrink device is equipped with a first displacement sensor on the side close to the processing station, and the second drive assembly or heat shrink device is equipped with a second displacement sensor on the side away from the processing station.

[0015] The beneficial effects of this utility model are that by dividing the U-shaped cavity into at least two heating areas along the first direction, and by monitoring the temperature in each heating area in real time, the heating temperature of the heating structure in each heating area is adjusted to compensate for the temperature near the U-shaped cavity port, thereby improving the heat shrink forming quality of the wire harness inside the U-shaped cavity; at the same time, by using the first driving component and the second driving component to adjust the position of the heat shrinking device in the first or second direction, the heat shrinking device can adjust the heating position of the wire harness in the first and second directions, making the heat shrinking device adaptable to wire harnesses of different lengths, thus improving the applicability of this application. Attached Figure Description

[0016] Figure 1This is the front view of the present invention;

[0017] Figure 2 This is the right view of the present invention;

[0018] Figure 3 This is a schematic diagram of the internal structure of the rack;

[0019] Figure 4 A schematic diagram of the heat shrink device and the first and second drive components. Figure 1 ;

[0020] Figure 5 A schematic diagram of the heat shrink device and the first and second drive components. Figure 2 ;

[0021] Figure 6 This is a schematic diagram of the supporting plate structure;

[0022] In the figure: 1. Frame, 11. Processing station, 2. First drive assembly, 3. Heat shrinking device, 31. U-shaped cavity, 32. Heating structure, 33. First heating area, 34. Second heating area, 4. Second drive assembly, 5. Bearing plate, 51. Heating window, 6. Wire clamp, 61. Clamping space, 7. Cooling device, 8. Air cooling device. Detailed Implementation

[0023] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0024] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figures 1 to 6As shown, the small heat shrink machine of this utility model includes: a frame 1 with a processing station 11 for placing and heating wire harnesses; a first drive assembly 2 disposed on the frame 1 for driving the heat shrink device 3 to enter or exit the processing station 11 along a first direction; a second drive assembly 4 disposed on the first drive assembly 2 and controlled to move along the first direction by the first drive assembly 2, the heat shrink device 3 being mounted on the second drive assembly 4 and controlled to move along the second direction by the second drive assembly 4; wherein, the heat shrink device 3 has at least a U-shaped cavity 31, the top and bottom surfaces of the U-shaped cavity 31 having at least two adjacent heating areas along the first direction, and the heating areas having a heating structure 32 for heat shrinking the wire harnesses.

[0027] See Figure 1 The length direction of the small heat shrink machine is the first direction, and the width direction of the small heat shrink machine is the second direction. The frame 1 has a processing station 11 at the front end along the first direction. The first drive component 2 is installed in the frame 1, the second drive component 4 is installed on the first drive component 2, and the heat shrinking device 3 is installed on the second drive component 4. The first drive component 2 can control the second drive component 4 and the heat shrinking device 3 to move along the first direction, and the second drive component can control the heat shrinking device 3 to move along the second direction. Through the synergistic effect of the first drive component 2 and the second drive component 4 on the heat shrinking device 3, the heat shrinking device 3 can adjust the heating position of the wire harness in the first direction and the second direction, and at the same time, the heat shrinking device 3 can adapt to wire harnesses of different lengths.

[0028] See Figures 3 to 5 The heat shrinking device 3 includes at least a frame, on which a U-shaped cavity 31 is formed that can be inserted into or withdrawn from the processing station 11. The top and bottom surfaces of the U-shaped cavity 31 are provided with at least two adjacent heating areas along a first direction, and a heating structure 32 is installed in each heating area. It is understandable that when the U-shaped cavity 31 wraps the wire harness on the processing station 11, because the end of the U-shaped cavity 31 is open, when the conventional non-partitioned heating structure 32 heats the wire harness, the position near the end opening of the U-shaped cavity 31 comes into contact with more air, making the temperature at this position slightly lower than the heating temperature inside the U-shaped cavity 31. This will cause uneven heating of the wire harness arranged along the first direction on the processing station 11, affecting the forming quality of the wire harness. This application divides the U-shaped cavity 31 into at least two heating areas along the first direction, monitors the temperature in each heating area in real time, and then adjusts the heating temperature of the heating structure 32 in each heating area to compensate for the temperature near the port of the U-shaped cavity 31, thereby improving the heat shrink forming quality of the wire harness inside the U-shaped cavity 31.

[0029] Specifically, when heat shrinking wire harnesses, several wire harnesses are first arranged and fixed on the processing station 11 along the first direction. Then, the first driving component 2 and the second driving component 4 are used to control the U-shaped cavity 31 of the heat shrinking device 3 to surround the wire harnesses on the processing station 11. After the heat shrinking device 3 is adjusted into place, the heating structure 32 of each heating area is controlled to work, so as to achieve heat shrinking of the wire harnesses. It has the characteristics of simple structure and convenient operation, and is practical.

[0030] In one or more embodiments, the U-shaped cavity 31 of the heat shrinking device 3 has two heating areas, and the two heating areas have the same heating area along the first direction.

[0031] See Figure 4 , Figure 5 To facilitate the positioning of each heating area, the heating area closer to processing station 11 is named the first heating area 33, and the heating area farther from processing station 11 is named the second heating area 34. The first heating area 33 and the second heating area 34 have the same heating area. This arrangement ensures the forming effect of the wire harness near the opening of the U-shaped cavity 31. Specifically, during heat shrink forming of the wire harness, the heating temperature within the first heating area 33 and the second heating area 34 is adjusted to regulate the overall heating temperature within the U-shaped cavity 31, improving the consistency of simultaneous forming of multiple wire harnesses.

[0032] In one or more embodiments, the first drive assembly 2 includes at least a first linear module disposed within the frame 1, and the second drive assembly 4 includes at least a second linear module disposed within the frame 1. The second linear module can be moved by the first linear module along a first direction. It is understood that the first and second linear modules can be cylindrical linear guides, ball linear guides, etc., and the types of the first and second linear modules are not specifically limited, as long as they can achieve their corresponding functions.

[0033] In one or more embodiments, a support plate 5 is provided on the processing station 11. The support plate 5 has a plurality of wire clamps 6 arranged along the first direction on both sides of the heat shrinking device 3. A clamping space 61 is formed between adjacent wire clamps 6. The portion of the support plate 5 located between two sets of wire clamps 6 passes through to form a heating window 51.

[0034] See Figure 1 , Figure 6 Along the second direction, two wire clamp groups are provided on both sides of the heat shrinking device 3 on the support plate 5. Each wire clamp group includes several wire clamps 6 arranged along the first direction, and a clamping space 61 is formed between adjacent wire clamps 6. A heating window 51 is provided through the support plate 5. When the U-shaped cavity 31 of the heat shrinking device 3 partially surrounds the support plate 5, the heating window 51 is located inside the U-shaped cavity 31 of the heat shrinking device 3.

[0035] Specifically, when fixing the wire harness, the two ends of the wire harness are clamped in the corresponding clamping space 61 along the second direction, which has the characteristics of simple structure and convenient operation. It can be understood that the heating window 51 opened on the carrier plate 5 can facilitate the heating structure 32 of the heat shrink device 3 to fully heat the wire harness, thereby improving the forming quality and forming efficiency of the wire harness.

[0036] In one or more embodiments, the frame 1 is provided with a cooling device 7 for accelerating the forming of the heated wire harness directly below the heating window 51 of the support plate 5. The cooling device 7 is lower than the bottom surface of the heat shrink device 3 in the height direction.

[0037] See Figure 2 , Figure 6 The cooling device 7 can be a cooling fan. The cooling fan is located on the frame 1 directly below the heating window 51. After the heat shrinking device 3 finishes heat shrinking the wire harness and exits the processing station 11, the cooling fan can blow air through the heating window 51 to the wire harness to accelerate the cooling and forming of the wire harness and improve the heat shrinking efficiency of the wire harness.

[0038] It should be noted that, in the height direction, the top of the cooling device 7 is lower than the bottom of the heat shrinking device 3. This arrangement can avoid the problem of interference between the heat shrinking device 3 and the cooling device 7 when the heat shrinking device 3 moves in the first direction.

[0039] In one or more embodiments, the wire clamp 6 is made of elastic rubber and is arched. The elastic rubber wire clamp 6 can clamp the wire harness while reducing damage to the wire harness; in addition, setting the wire harness in an arched structure can further improve the clamping force of adjacent wire clamps 6 on the wire harness, ensuring the stability of the wire harness during heat shrink molding.

[0040] In one or more embodiments, the wire clamp 6 is configured on the carrier plate 5 to be positionally adjustable along a second direction.

[0041] See Figure 1 , Figure 6 The wire clamp 6 is fixed on the base plate, which can be installed on the bearing plate 5 by bolt thread. When the length of the processed wire harness changes, the position of the base plate on the bearing plate 5 can be moved to adapt to the change in wire harness length, thereby achieving clamping for different wire harnesses and improving the applicability of the heat shrink machine of this application.

[0042] In one or more embodiments, the heating structure 32 is an infrared ceramic plate. In other possible embodiments, the heating device may also be a heating tube, a heating wire, or a hot air stream.

[0043] In one or more embodiments, the heat shrink device 3 is provided with a cooling device 8 for cooling the heating structure 32. The cooling device 8 can be a cooling fan; when the wire harness is processed and formed, and the heat shrink device 3 retracts into the frame 1, the cooling fan quickly cools the heating structure 32, which can reduce the problem of damage to the internal components of the frame 1 due to excessive temperature of the heat shrink device 3.

[0044] In one or more embodiments, the second drive assembly 4 or the heat shrinking device 3 is equipped with a first displacement sensor on the side near the processing station 11, and the second drive assembly 4 or the heat shrinking device 3 is equipped with a second displacement sensor on the side away from the processing station 11.

[0045] See Figures 3 to 5 When the first drive assembly 2 controls the second drive assembly 4 and the heat shrinking device 3 to move toward the processing station 11, the first displacement sensor is used to sense whether the heat shrinking device 3 has reached the predetermined position. When the first drive assembly 2 controls the second drive assembly 4 and the heat shrinking device 3 to retract into the frame 1, the second displacement sensor is used to sense whether the heat shrinking device 3 is in place. With this setting, the first drive assembly 2 can accurately control the position of the second drive assembly 4 and the heat shrinking device 3, thereby improving the forming quality of the wire harness on the processing station 11.

[0046] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A compact heat shrink machine characterized by, include: The frame has processing stations for placing and heating wire harnesses; A first drive assembly, located on the frame, is used to drive the heat shrinking device to enter or exit the processing station along a first direction; The second drive assembly is disposed on the first drive assembly and is controlled to move along a first direction by the first drive assembly; the heat shrinking device is mounted on the second drive assembly and is controlled to move along a second direction by the second drive assembly. The heat shrinking device has at least a U-shaped cavity, and the top and bottom surfaces of the U-shaped cavity are provided with at least two adjacent heating areas along a first direction. The heating areas are provided with heating structures for heat shrinking the wire harness.

2. The compact heat shrink machine of claim 1, wherein: The heat shrinking device has two heating zones inside its U-shaped cavity, and the two heating zones have the same heating area along a first direction.

3. The compact heat shrink machine of claim 1, wherein: The first drive assembly includes at least a first linear module disposed within the frame, and the second drive assembly includes at least a second linear module disposed within the frame, wherein the second linear module can be moved by the first linear module along a first direction.

4. The compact heat shrink machine of claim 1, wherein: The processing station is provided with a support plate, and the support plate has a plurality of wire clamps arranged along a first direction on both sides of the heat shrinking device. A clamping space is formed between adjacent wire clamps, and the portion of the support plate located between two sets of wire clamps passes through to form a heating window.

5. The compact heat shrink machine of claim 4, wherein: The frame is provided with a cooling device for accelerating the forming of the heated wire harness directly below the heating window of the support plate. The cooling device is lower than the bottom surface of the heat shrinking device in the height direction.

6. The compact heat shrink machine of claim 4, wherein: The clamp is made of elastic rubber and is arched in shape.

7. The compact heat shrink machine of claim 4, wherein: The clamp on the support plate is configured to be positionally adjustable along a second direction.

8. The compact heat shrink machine of claim 1, wherein: The heating structure is an infrared ceramic plate.

9. The compact heat shrink machine of claim 1, wherein: The heat shrinking device is equipped with an air-cooling device for cooling the heating structure.

10. The compact heat shrink machine of claim 1, wherein: The second drive assembly or heat shrinking device is equipped with a first displacement sensor on the side near the processing station, and a second displacement sensor is equipped on the side away from the processing station.

Images