A wiring harness heat shrink sleeve device

Abstract

The utility model provides a kind of harness heat shrinkable sleeve device, belong to harness production technical field.The harness heat shrinkable sleeve device, including support wall, it is characterized by: two installation boxes are integrally made into two installation boxes respectively in support wall inner face, two installation boxes opposite end is equipped with harness moving space, and opening is respectively equipped with two baffle, two baffle are respectively equipped with two hot air conveying components between two installation boxes inner bottom, the opposite side of two installation boxes is respectively provided with four installation grooves, and two ends inner part is respectively equipped with four drive components, four installation groove inner part is respectively provided with four conveyer belts, four conveyer belts inner wall is respectively with four drive components outer surface synchronous connection, wherein, by two groups of installation boxes and internally equipped baffle and hot air conveying component and four installation groove inner part equipped four drive components and four conveyer belts collaborative work, so that the harness heat shrinkable sleeve device is applicable to too thick too thin or irregular shape harness.

Description

Technical Field

[0001] This application relates to the field of wire harness manufacturing technology, and more specifically, to a wire harness heat shrink tubing device. Background Technology

[0002] In fields such as automobile manufacturing, electronic equipment assembly, and communication engineering, wire harnesses serve as crucial carriers for signal and power transmission, and their safety and stability directly impact the operational efficiency of the entire system. To ensure the insulation performance, corrosion resistance, and structural integrity of wire harnesses, the industry commonly employs heat-shrink tubing for wrapping—heating causes the tubing to shrink and tightly adhere to the wire harness surface, thus forming a reliable protective barrier. With the continuous development of industrial technology, the application scenarios for wire harnesses are becoming increasingly complex, and their specifications and forms are also showing a trend towards diversification. However, existing wire harness heat-shrink tubing devices are gradually revealing significant compatibility defects when dealing with wire harnesses that are too thick, too thin, or irregularly shaped. Utility Model Content

[0003] To overcome the above deficiencies, this application provides a wire harness heat shrink tubing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is as follows:

[0005] A wire harness heat shrink tubing device includes a support wall, characterized in that: two mounting boxes are integrally formed at the upper and lower ends of the inner surface of the support wall, the two mounting boxes have a wire harness movement space at their opposite ends, and two partitions are respectively installed at the openings, two hot air conveying components are respectively provided between the two partitions and the bottom of the two mounting boxes, four mounting slots are respectively opened on the opposite sides of the two mounting boxes, and four driving components are respectively installed inside the two ends, four conveyor belts are respectively arranged inside the four mounting slots, and the inner walls of the four conveyor belts are synchronously connected to the outer surfaces of the four driving components.

[0006] Furthermore, two slots are respectively opened at both ends of the mounting box, and the top of the two slots has a groove, into which the partition is inserted.

[0007] Furthermore, the partition plate has several vent holes evenly spaced on its surface, and has protrusions at both ends that are inserted and fixedly connected to the inside of the slot. The outer wall of the protrusions on the surface of the partition plate is engaged with the inside of the groove at the top of the slot.

[0008] Furthermore, the hot air conveying component consists of a pipe, several air jets and a flange. Several air jets are evenly spaced on the surface of the pipe, and the flange is seamlessly welded to one end. The other end passes through the side wall of the mounting box and is placed between the mounting box and the partition.

[0009] Furthermore, the driving component consists of a hinge hole, two driving rollers, a shaft, and a driving motor. The hinge hole is provided on the side wall of the mounting box. The two driving rollers are respectively placed inside the mounting grooves opened on the surface of the mounting box, and their inner rings correspond to the inside of the hinge hole. The two ends of the shaft are hinged to the inner wall of the hinge hole, and its surface is fixedly connected to the inner wall of the two driving rollers. The fixed end of the driving motor is bolted to the side wall of the mounting groove, and its output end is inserted into the irregular hole opened on the outer end of the shaft.

[0010] Furthermore, the inner wall of the conveyor belt is synchronously connected to the outer wall of the drive roller, and its surface is slightly higher than the surface of the mounting box.

[0011] This utility model has the following beneficial effects:

[0012] 1. This utility model facilitates the smooth passage of wire harnesses of varying thicknesses through the heating zone of the wire harness movement space by coordinating the four driving components and four conveyor belts assembled inside the upper and lower mounting boxes and four mounting slots. For very thin wire harnesses, both ends can be stably transported by the conveyor belts, ensuring that the heat shrink sleeve accurately passes through the hot air zone; for very thick wire harnesses, the conveyor belts can achieve stable transport through elastic clamping, similarly ensuring that the heat shrink sleeve accurately passes through the hot air zone. At the same time, the four conveyor belts are driven synchronously from both sides, forming multi-point elastic clamping support for irregular wire harnesses, effectively ensuring that they maintain a stable posture during movement and avoiding transport jams caused by special shapes.

[0013] 2. This utility model's hot air delivery component forms a directional hot air channel through jet holes on the pipe surface and vents on the partition plate, allowing heat to be evenly applied to the heat-shrinkable sleeve on the wire harness surface from both the top and bottom. For irregular wire harness protrusions or depressions, the symmetrically distributed hot air reduces heating dead zones; while the equidistant design of the jet holes ensures consistent heating across all areas of the sleeve, avoiding localized overheating or incomplete shrinkage, significantly improving heat shrinking quality. Furthermore, the hot air delivery component connects to an external heat source via a flange, facilitating adjustment of hot air temperature and intensity according to the sleeve material, enhancing adaptability to sleeves of different materials. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1This is a schematic diagram of the wire harness heat shrink tubing device provided in the embodiments of this application;

[0016] Figure 2 A cross-sectional view of the mounting box, drive component, and conveyor belt provided for embodiments of this application;

[0017] Figure 3 A cross-sectional structural schematic diagram of the wire harness heat shrink tubing device provided in the embodiments of this application;

[0018] Figure 4 A schematic diagram of the connection structure between the hot air conveying and driving components and the conveyor belt and partition provided in the embodiments of this application.

[0019] In the diagram: 1-Support wall; 2-Mounting box; 3-Wire harness moving space; 4-Baffle; 5-Hot air conveying component; 6-Mounting groove; 7-Drive component; 8-Conveyor belt; 21-Strip hole; 41-Ventilation hole; 51-Pipe; 52-Air jet hole; 53-Flange; 71-Hinge hole; 72-Drive roller; 73-Shaft; 74-Drive motor. Detailed Implementation

[0020] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0021] Example:

[0022] Please see Figure 1 , Figure 2 , Figure 3 A wire harness heat shrink tubing device includes a support wall 1 made of high-strength alloy material, which has good load-bearing capacity and stability. Its main function is to provide a stable support foundation for the entire device. Two mounting boxes 2 are integrally formed at the upper and lower ends of the inner surface of the support wall 1. This integrally formed structural design effectively improves the overall rigidity of the device and prevents loosening or deformation during long-term use.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4A wire harness heat shrink tubing device includes two integrally formed mounting boxes 2 on the inner surface of a support wall 1 at its upper and lower ends. The two mounting boxes 2 have a wire harness moving space 3 at their opposite ends, and two partitions 4 are fitted at their openings. Two hot air conveying components 5 are respectively provided between the partitions 4 and the bottom of the two mounting boxes 2. Four mounting slots 6 are respectively opened on the opposite sides of the two mounting boxes 2, and four driving components 7 are respectively installed inside each of their ends. Four conveyor belts 8 are respectively arranged inside the four mounting slots 6, and the inner walls of the four conveyor belts 8 are synchronously connected to the outer surfaces of the four driving components 7. Two slot holes 21 are respectively opened at each end of the mounting box 2. Several vent holes 41 are equally spaced on the surface of the partitions 4. The hot air conveying components 5 consist of pipes 51, several air jets 52, and flanges 53. The driving components 7 consist of hinge holes 71, two driving rollers 72, shafts 73, and a driving motor 74.

[0024] The mounting box 2 has two slots 21 at each end, extending along the width of the mounting box 2. These slots have a rectangular cross-section and smooth inner walls to reduce friction when inserted with the partition 4. Each slot 21 has a recessed groove at its top, elongated in shape and aligned with the extension direction of the slot. The depth and width of the groove are precisely calculated to fit the protrusions at both ends of the partition 4. The partition 4 is inserted into the slot 21. The length of the partition 4 matches the length of the mounting box 2, while its width is slightly smaller than the opening of the mounting box 2, ensuring precise insertion into the opening.

[0025] The two mounting boxes 2 are made of high-strength and high-temperature resistant material. This material selection ensures structural stability under continuous hot air heating, preventing deformation or performance degradation due to high temperatures. The opposite ends of the two mounting boxes 2 form a wire harness movement space 3. The dimensions of this space are precisely designed according to the specifications of common wire harnesses. Its width and height are sufficient to accommodate wire harnesses that are too thick, too thin, or irregularly shaped to pass through smoothly, providing ample operating space for the heat shrinking of various wire harnesses.

[0026] The protrusions at both ends of the partition 4 fit tightly against the top of the slot 21, while the top of the protrusions engages with the groove at the top of the slot 21, forming a double fixing structure. This prevents the partition 4 from shifting laterally during hot air impact and equipment operation, and also prevents it from sliding along the length of the slot 21. This plug-in method requires no additional fastening parts. During installation, simply align both ends of the partition 4 with the slot 21 and insert it until the protrusions are fully engaged in the grooves. The operation is convenient. During disassembly, only a little force is needed to pull the partition 4 out along the slot 21, facilitating later maintenance of the hot air conveying component 5 inside the mounting box 2 or replacement of partitions 4 of different specifications. The surface of the partition 4 has several vent holes 41 at equal intervals. The diameter and number of the vent holes 41 are optimized to ensure that hot air is evenly blown onto the wire harness within the wire harness movement space 3.

[0027] The hot air delivery component 5 is connected to the flange of an external hot air blower and delivers hot air to the wire harness moving space 3 located between the two mounting boxes 2 to heat the heat shrink tubing of the wire harness. The pipe 51 is made of high-temperature resistant stainless steel with uniform wall thickness. This material can withstand the high-temperature environment during hot air delivery and also has good corrosion resistance, extending the service life of the components. The diameter of the pipe 51 is designed according to the required hot air delivery volume to ensure sufficient hot air is provided for the heat shrinking process. Several air jets 52 are evenly spaced on the surface of the pipe 51. The diameter of the air jets 52 is precisely calculated and generally set between 1-3 mm, ensuring sufficient jet force for the hot air while avoiding uneven hot air dispersion due to excessively large orifice diameters. The spacing between adjacent air jets 52 is consistent and corresponds to the spacing of the vent holes 41 on the partition 4, allowing the hot air ejected from the air jets 52 to accurately enter the wire harness moving space 3 through the vent holes 41. One end of the pipe 51 is seamlessly welded with a flange 53. The flange 53 is made of the same material as the pipe 51 and is connected by seamless welding to ensure the sealing of the connection and prevent hot air leakage during transportation. The flange 53 has evenly distributed bolt holes, which can be tightly connected to the interface of an external hot air generator via bolts, facilitating disassembly and installation, and making it easy to maintain or replace the hot air generator later. The other end of the pipe 51 passes through the side wall of the mounting box 2 and is placed between the mounting box 2 and the partition 4. The penetration point between the pipe 51 and the side wall of the mounting box 2 is sealed to prevent hot air leakage from gaps and affecting the heating effect. The length of the section of pipe 51 placed between the mounting box 2 and the partition 4 is adapted to the length of the mounting box 2, ensuring that the air jet vent 52 can cover the entire length of the wire harness movement space 3, so that the heat shrink tubing in all parts of the wire harness can be heated evenly during movement.

[0028] The design of the mounting slot 6 fully considers the installation requirements of the conveyor belt 8. Its slot size is precisely matched with the width and thickness of the conveyor belt 8, and the bottom and side walls of the slot are smoothed to effectively reduce obstacles during the installation of the conveyor belt 8. This design allows the conveyor belt 8 to be easily embedded in the slot, achieving initial installation without complicated positioning adjustments, greatly simplifying the assembly process, and also providing convenience for the later replacement and maintenance of the conveyor belt 8.

[0029] The four sets of drive components 7 and four conveyor belts 8 work in precise coordination to achieve stable transport of the wire harness within the heating area of ​​the wire harness movement space 3. The hinge holes 71 on the side wall of the mounting box 2 provide precise positioning for the installation of the shaft 73. The shaft 73 is hinged within the holes by bearings, ensuring both its own rotational flexibility and the ability to withstand radial forces during transport. The drive roller 72 is fitted inside the mounting groove 6 and forms a rigid transmission structure with the shaft 73 through a plug-in connection. When the shaft 73 rotates, it directly drives the drive roller 72 to rotate synchronously and stably, avoiding relative slippage. The drive motor 74, as the power source, is firmly fixed to the side wall of the mounting box 2 with bolts. Its output end is connected to one end of the shaft 73 by a snap-fit ​​connection, such as the fitting of a shaped hole and a matching shaft head, ensuring lossless power transmission and efficient drive of the shaft 73. The shaft 73, as the force transmission medium, precisely transmits the rotational power of the drive motor 74 to the drive roller 72, thereby driving the conveyor belt 8 to move synchronously along a preset trajectory within the mounting groove 6. To further enhance transmission stability, in addition to frictional transmission, the drive roller 72 and the conveyor belt 8 can also employ a meshing mechanism, such as a toothed structure on the surface of the drive roller engaging with the grooves on the inner wall of the conveyor belt. This effectively prevents slippage during high-speed operation or load changes, ensuring a uniform and consistent wire harness conveying speed. Furthermore, the surface of the conveyor belt 8 is slightly higher than the surface of the mounting box 2, enabling better wire harness transport.

[0030] The working principle of the wire harness heat shrink tubing device is as follows: In actual operation, the wire harness with the heat shrink tubing attached is placed into the wire harness moving space 3. The drive motor 74 is started, and the drive roller 72 drives the conveyor belt 8 to rotate, thereby moving the wire harness within the moving space. At the same time, the external hot air generator introduces hot air into the pipe 51 through the flange 53. The hot air is ejected through the jet hole 52 and then blown onto the heat shrink tubing on the wire harness through the vent hole 41 on the partition plate 4. This causes the heat shrink tubing to shrink and tightly adhere to the surface of the wire harness, completing the heat shrinking process.

[0031] It should be noted that the specific models and specifications of the conveyor belt 8 and drive motor 74 need to be selected and determined based on the actual specifications of the device. The specific selection and calculation methods adopt existing technologies in this field, so they will not be described in detail here.

[0032] The power supply and principle of the drive motor 74 are clear to those skilled in the art and will not be described in detail here.

[0033] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wire harness heat shrink tubing device, comprising a support wall (1), characterized in that: The inner surface of the support wall (1) is integrally formed with two mounting boxes (2) at the upper and lower ends. The two mounting boxes (2) are provided with a wire harness moving space (3) at opposite ends, and two partitions (4) are respectively installed at the opening. Two hot air conveying components (5) are respectively provided between the two partitions (4) and the bottom of the two mounting boxes (2). Four mounting slots (6) are respectively opened on the opposite sides of the two mounting boxes (2), and four driving components (7) are respectively installed inside the two ends. Four conveyor belts (8) are respectively provided inside the four mounting slots (6), and the inner walls of the four conveyor belts (8) are synchronously connected to the outer surfaces of the four driving components (7).

2. The wire harness heat shrink tubing device according to claim 1, characterized in that, The mounting box (2) has two slots (21) at each end. The top of each slot (21) has a groove and the partition (4) is inserted into it.

3. The wire harness heat shrink tubing device according to claim 2, characterized in that, The partition (4) has several ventilation holes (41) evenly spaced on its surface, and has protrusions at both ends, which are inserted and fixedly connected to the inside of the slot (21). The outer wall of the protrusions on the surface of the partition (4) is engaged with the inside of the groove at the top of the slot (21).

4. A wire harness heat shrink tubing device according to claim 3, characterized in that, The hot air conveying component (5) consists of a pipe (51), a number of air jet holes (52) and a flange (53). The pipe (51) has a number of air jet holes (52) evenly spaced on its surface, and one end is seamlessly welded to the flange (53). The other end passes through the side wall of the mounting box (2) and is placed between the mounting box (2) and the partition (4).

5. A wire harness heat shrink tubing device according to claim 4, characterized in that, The drive component (7) consists of a hinge hole (71), two drive rollers (72), a shaft (73), and a drive motor (74). The hinge hole (71) is provided on the side wall of the mounting box (2). The two drive rollers (72) are respectively placed inside the mounting groove (6) opened on the surface of the mounting box (2), and their inner rings correspond to the inside of the hinge hole (71). The two ends of the shaft (73) are hinged to the inner wall of the hinge hole (71), and its surface is fixedly connected to the inner wall of the two drive rollers (72). The fixed end of the drive motor (74) is bolted to the side wall of the mounting groove (6), and its output end is inserted into the irregular hole opened at the outer end of the shaft (73).

6. A wire harness heat shrink tubing device according to claim 5, characterized in that, The inner wall of the conveyor belt (8) is synchronously connected to the outer wall of the drive roller (72), and its surface is slightly higher than the surface of the mounting box (2).

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