Heat shrink device for heat shrink tube

By designing a heating source structure with upper and lower clamping blocks in the heat shrinking device, combined with partitions and fans, the problems of uneven heating and inconvenient operation of heat shrink tubing are solved, achieving uniform heating and convenient operation of heat shrink tubing, and improving the efficiency and quality of air bag production.

CN223618368UActive Publication Date: 2025-12-02SHENZHEN YUHENG CLOUD TESTING TECH CO LTD
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Patent Information

Application Number
CN202423192327.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-12-02
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

Existing heat shrinking devices suffer from uneven heating of the heat shrink tubing and are inconvenient to operate, affecting the efficiency and quality of air bag production.

Method used

A heat shrinking device including an upper clamping block and a lower clamping block was designed. Two heating sources are respectively set in the grooves of the clamping blocks. Combined with a partition and a fan, uniform heating and rapid heat transfer of the heat shrink tube are achieved. The clamping blocks are easy to operate through structures such as connecting blocks, shafts and elastic elements.

Benefits of technology

It achieves uniform heat shrinking of heat shrink tubing, improves ease of operation, simplifies the operation process, and enhances the efficiency and quality of air bag production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a heat shrink device for a heat shrink tube, and belongs to the technical field of heat shrink devices. Comprising an upper clamping block and a lower clamping block, the upper clamping block is rotationally connected with the lower clamping block, and the upper clamping block and the lower clamping block are used for clamping and fixing an air pipe and a collection bag; the grooves are formed in the upper clamping block and the lower clamping block, the adjacent faces of the groove in the upper clamping block and the groove in the lower clamping block are communicated, and the grooves are used for promoting the heat shrink tube to be suspended; the number of the heating sources is two, and the two heating sources are arranged in the grooves in the upper clamping block and the lower clamping block respectively. Through cooperation of the upper clamping block, the lower clamping block, the heating source, the groove and other structures, the purpose of uniformly heating a heat shrink tube is achieved, and through cooperation of the upper clamping block, the lower clamping block, the connecting block, the shaft rod, the pressing rod, the auxiliary rod and the elastic piece, the purpose of conveniently operating the device is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of heat shrinking device technology, and in particular to a heat shrinking device for heat shrink tubing. Background Technology

[0002] In the manufacturing process of odor collection bags for pollution sources, the treatment of heat shrink tubing is a crucial step. Heat shrink tubing plays a vital role in sealing and securing related components during bag assembly. For example, in certain industrial or laboratory air bags, the quality and installation effect of the heat shrink tubing directly affect the overall performance of the air bag. Currently, there are various manufacturing processes for air bags, and different methods, while meeting the needs of different application scenarios, also have their own processes and characteristics.

[0003] However, in the traditional airbag manufacturing process, especially in processes requiring heat shrink tubing for installation, existing heating methods are mostly unilateral heating or non-specific general-purpose heating equipment. These methods cannot adequately meet the requirements for rapid and uniform heat shrinkage of the heat shrink tubing during airbag manufacturing. This not only results in a prolonged heat shrinkage process but also easily leads to quality problems such as poor sealing due to uneven heating, severely impacting the efficiency and quality of airbag manufacturing. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a heat shrink tubing heat shrinking device, which solves the technical problems of uneven heating of heat shrink tubing and inconvenient operation of existing heat shrink devices.

[0005] Technical Solution: To achieve the above objectives, this utility model provides the following technical solution: A heat shrink tubing heat shrinking device, comprising: an upper clamping block and a lower clamping block, the upper clamping block and the lower clamping block being rotatably connected, the upper clamping block and the lower clamping block being used to clamp the trachea and the collection bag; a groove, formed on the upper clamping block and the lower clamping block, wherein the adjacent surfaces of the groove on the upper clamping block and the groove on the lower clamping block are connected, the groove being used to suspend the heat shrink tubing; two heating sources, the two heating sources being respectively disposed in the grooves on the upper clamping block and the lower clamping block, the heating... The heat source is used to generate heat so that the heat shrink tubing is heated and shrinks evenly. The upper and lower clamps are matched in shape and size so that they can be tightly closed. When clamping the trachea and collection bag, the contact surfaces of the upper and lower clamps can be equipped with high-temperature resistant soft rubber pads to ensure a stable clamping and prevent damage to the trachea and collection bag. The heating source can be a heating wire that is spirally and evenly distributed in the groove, or a ceramic heating plate whose coverage area occupies a certain proportion of the inner surface area of ​​the groove to generate heat so that the heat shrink tubing is heated and shrinks evenly.

[0006] In a further embodiment, a partition is installed within a groove, positioned between the two heating sources and without interfering with the heat shrink tubing. The partition has multiple through-holes for uniform heat distribution, preventing localized overheating of the heat shrink tubing. The shape of the partition matches the shape of the groove and is tightly installed within it. The partition has a moderate thickness, ensuring structural strength without excessively occupying groove space and affecting heat flow. The size, number, and density of the air outlets are designed based on the power of the heating sources, the size of the heat shrink tubing, and the required heat flow rate. The edges of the air outlets are smoothed to prevent turbulence from affecting heat flow uniformity.

[0007] In a further embodiment, a connecting block is stably connected to the upper clamping block, and the connecting block is used to connect the upper clamping block and the lower clamping block; a shaft is installed inside the lower clamping block, and the shaft is used to rotatably connect the connecting block and the lower clamping block. The connecting block is cuboid in shape and is connected to the upper clamping block by welding or high-strength bolts to ensure the stability of the connection; the shaft is made of metal with a smooth surface, and the length and diameter of the shaft are determined according to the size of the connecting block and the torque required for rotation.

[0008] In a further embodiment, an elastic element is mounted on the shaft. The elastic element is used to reset the upper and lower clamping blocks after they are opened. The elastic element is a helical spring, and the parameters such as the wire diameter, mean diameter, and effective number of turns of the spring are designed according to the weight of the upper and lower clamping blocks and the reset force required for rotation.

[0009] In a further embodiment, a pressure rod is stably connected to the connecting block, and the pressure rod is located at the end of the connecting block away from the upper clamping block. The pressure rod is used to control the rotation of the upper clamping block. An auxiliary rod is stably connected to the lower clamping block, and the auxiliary rod is on the same side as the pressure rod. The auxiliary rod is used to assist the pressure rod in controlling the rotation of the upper clamping block. The pressure rod can be cylindrical, with a moderate length for easy operation, and its surface is provided with anti-slip texture. The pressure rod and the connecting block are connected by threads or riveting to ensure a firm connection. The auxiliary rod can be square, with one end welded to the lower clamping block.

[0010] In a further embodiment, multiple fans are provided, and the multiple fans are respectively installed in the grooves on the upper clamping block and the lower clamping block. The fans are located on the side of the heating source. The fans are used to quickly transfer the heat generated by the heating source to the heat shrink tubing. The fans are small axial flow fans with twisted blades. The fan speed can be adjusted according to the power of the heating source and the heat shrink requirements of the heat shrink tubing. The fans are also designed to ensure that the fan position is stable and that the air is blown accurately onto the heat shrink tubing.

[0011] In a further embodiment, multiple clamping grooves are provided, and the clamping grooves are opened on the adjacent surfaces of the upper clamping block and the lower clamping block. The clamping grooves are used to provide clamping positions for the collection bag and the trachea. The shape of the clamping groove matches the shape of the collection bag and the trachea. The clamping groove for the trachea is circular, and the clamping groove for the collection bag is rectangular or semi-circular. The inner surface of the clamping groove is provided with anti-slip protrusions or textures to enhance the clamping effect. The depth and width of the clamping groove are designed according to the size specifications of the collection bag and the trachea.

[0012] In a further embodiment, the partition is made of a ceramic material or a metal alloy material with high specific heat capacity and thermal conductivity. The ceramic material can be alumina ceramic with a purity of over 95%, possessing characteristics such as high hardness, high temperature resistance, and oxidation resistance, which can effectively store and conduct heat. The aluminum-copper alloy in the metal alloy material has an aluminum content between 60% and 80% and a copper content between 20% and 40%. Under this ratio, the thermal conductivity and heat storage capacity of the alloy are well balanced. The magnesium-zinc alloy has a magnesium content between 50% and 70% and a zinc content between 30% and 50%, and contains a small amount of rare earth elements to improve its performance.

[0013] Beneficial effects: 1. Through the cooperation of structures such as upper clamping block, lower clamping block, heating source and groove, the heat shrink tubing is heated evenly. The two heating sources are placed in the grooves of the upper clamping block and the lower clamping block respectively to provide heat to the heat shrink tubing. The groove makes the heat shrink tubing suspended, ensuring that the heat acts evenly from all sides, so that the heat shrink tubing can shrink stably and evenly.

[0014] 2. The device achieves convenient operation through the cooperation of the upper clamping block, lower clamping block, connecting block, shaft, pressure rod, auxiliary rod, and elastic element. The upper and lower clamping blocks are rotatably connected, and the connecting block and shaft ensure a stable connection, facilitating the clamping of the air tube and collection bag. The pressure rod and auxiliary rod work together to easily control the rotation of the upper clamping block, completing the clamping and releasing operations. The elastic element allows the clamping block to automatically reset after opening. This simplifies the operation process and reduces the difficulty of operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 for Figure 1 A schematic diagram of the main cross-section.

[0018] Figure 3 for Figure 1 An open diagram.

[0019] Figure 4 for Figure 1 The unfolded diagram.

[0020] The reference numerals in the figure are as follows: 1. Upper clamping block; 101. Connecting block; 102. Pressure rod; 2. Lower clamping block; 201. Auxiliary rod; 3. Groove; 4. Heating source; 5. Partition plate; 6. Fan; 7. Clamping groove; 8. Shaft; 9. Elastic element. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in this utility model are described clearly and completely. Obviously, the described embodiments are only some, not all, of the embodiments in this utility model. All other embodiments obtained by those skilled in the art based on the embodiments in this utility model without creative effort are within the scope of protection of this utility model.

[0022] This application provides a heat shrink tubing heat shrinking device that solves the technical problems of uneven heating of the heat shrink tubing and inconvenient operation in existing heat shrink devices. In practical use, it achieves a uniform and consistent heat shrinking effect, while also enhancing operational convenience and simplifying the operation process.

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0024] Reference Figure 1-4 A heat shrink tubing heat shrinking device includes: an upper clamping block 1 and a lower clamping block 2, the upper clamping block 1 and the lower clamping block 2 being rotatably connected, the upper clamping block 1 and the lower clamping block 2 being used to clamp the trachea and the collection bag; a groove 3, formed on the upper clamping block 1 and the lower clamping block 2, the adjacent surfaces of the groove 3 on the upper clamping block 1 and the groove 3 on the lower clamping block 2 being connected, the groove 3 being used to suspend the heat shrink tubing; and two heating sources 4, the two heating sources 4 being respectively arranged in the grooves 3 on the upper clamping block 1 and the lower clamping block 2, the heating sources 4 being used to generate heat so that the heat shrink tubing is evenly heated and shrinks.

[0025] The upper clamping block 1 and the lower clamping block 2 are connected by rotation to form an openable structure, which is mainly used to clamp the air tube and collection bag to ensure their stable position during the heat shrinking process. It also provides an installation base for other components such as the groove 3 and the heating source 4. The groove 3 is located on the upper clamping block 1 and the lower clamping block 2 and is interconnected, allowing the heat shrink tube to be suspended in the air. This ensures that the heat shrink tube has a uniform heat exchange space with the surrounding environment when heated, avoiding contact with the clamping blocks and affecting the heat shrinking effect. It is also conducive to the heat being applied to the heat shrink tube in all directions and evenly. The two heating sources 4 are placed in the grooves 3 of the upper and lower clamping blocks 2 respectively. Their core function is to generate heat. Through reasonable layout and heat output, the heat shrink tube is heated evenly, thereby achieving stable and high-quality shrinking.

[0026] The partition 5 is installed in the groove 3 and is located between the two heating sources 4. It does not interfere with the heat shrink tubing. The partition 5 has multiple through-holes. The partition 5 is used to distribute the heat flow evenly to prevent the heat shrink tubing from overheating locally.

[0027] The partition 5 is installed in the groove 3 and located between the two heating sources 4, without interfering with the heat shrink tubing; the multiple through-holes on the partition 5 play a key role, which can redistribute and evenly disperse the heat flow; during the heating process, it prevents the heat flow from concentrating in certain areas, avoids local overheating of the heat shrink tubing, ensures the overall uniformity of the heat shrink tubing, and improves the heat shrinking quality.

[0028] A connecting block 101 is stably connected to the upper clamping block 1, and the connecting block 101 is used to connect the upper clamping block 1 and the lower clamping block 2; a shaft 8 is installed inside the lower clamping block 2, and the shaft 8 is used to rotatably connect the connecting block 101 and the lower clamping block 2.

[0029] The connecting block 101 is stably connected to the upper clamping block 1 and is an important component connecting the upper clamping block 1 and the lower clamping block 2. It provides a stable connection structure for the relative rotation of the upper and lower clamping blocks 2, ensuring the connection strength and stability of the upper and lower clamping blocks 2 during operation, so that the entire device will not become loose or structurally unstable during opening, closing and use. The shaft 8 is installed inside the lower clamping block 2 and is a key component for the rotatable connection between the connecting block 101 and the lower clamping block 2. It provides a stable axis for the rotation of the connecting block 101, so that the upper clamping block 1 can rotate smoothly around the shaft 8 relative to the lower clamping block 2, realizing the opening and closing function of the device.

[0030] The elastic element 9 is installed on the shaft 8. The elastic element 9 is used to reset the upper clamping block 1 and the lower clamping block 2 after they are opened.

[0031] The elastic element 9 is installed on the shaft 8. When the device is operated to open the upper clamping block 1 and the lower clamping block 2, the elastic element 9 uses its own elastic restoring force to play a role. It can automatically push the upper clamping block 1 back to the initial position, realize the reset function of the upper clamping block 1 and the lower clamping block 2, facilitate the next clamping operation, improve the operating efficiency and ease of use of the device.

[0032] A pressure rod 102 is stably connected to a connecting block 101, and the pressure rod 102 is located at the end of the connecting block 101 away from the upper clamping block 1. The pressure rod 102 is used to control the rotation of the upper clamping block 1. An auxiliary rod 201 is stably connected to a lower clamping block 2, and the auxiliary rod 201 is on the same side as the pressure rod 102. The auxiliary rod 201 is used to assist the pressure rod 102 in controlling the rotation of the upper clamping block 1.

[0033] The pressure rod 102 is stably connected to the connecting block 101 and located at the end of the connecting block 101 away from the upper clamping block 1. It is an operating component that controls the rotation of the upper clamping block 1. When the operator applies external force to it, the upper clamping block 1 can be easily rotated around the shaft 8, thereby controlling the opening and closing of the device and facilitating the placement or removal of the trachea and collection bag. The auxiliary rod 201 is stably connected to the lower clamping block 2 and is on the same side as the pressure rod 102. The two work together. When operating the pressure rod 102, the auxiliary rod 201 can provide the operator with an additional force application point or support point, making the operation more stable and convenient, better controlling the rotation of the upper clamping block 1, and optimizing the operating experience.

[0034] Fans 6 are provided in multiple units, and the multiple fans 6 are respectively installed in the grooves 3 on the upper clamping block 1 and the lower clamping block 2. The fans 6 are located on the side of the heating source 4, and the fans 6 are used to quickly transfer the heat generated by the heating source 4 to the heat shrink tubing.

[0035] Multiple fans 6 are respectively installed in the grooves 3 on the upper clamping block 1 and the lower clamping block 2 and are located on one side of the heating source 4; their main function is to accelerate airflow and quickly transfer the heat generated by the heating source 4 to the area around the heat shrink tubing. By increasing the speed of heat transfer, the time it takes for the heat shrink tubing to reach the appropriate shrinking temperature is shortened, thereby improving the heat shrinking efficiency. At the same time, it also helps to distribute the heat more evenly around the heat shrink tubing.

[0036] Multiple clamping grooves 7 are provided, and the clamping grooves 7 are opened on the adjacent surfaces of the upper clamping block 1 and the lower clamping block 2. The clamping grooves 7 are used to provide the clamping position for the collection bag and the trachea.

[0037] Multiple clamping grooves 7 are formed on the adjacent surfaces of the upper clamping block 1 and the lower clamping block 2. Their function is to provide accurate clamping positions for the collection bag and the trachea. The design of the clamping grooves 7 is adapted to the shape of the collection bag and the trachea, which can firmly fix them and prevent displacement during the heat shrinking process, thus ensuring the accuracy and stability of the heat shrinking operation.

[0038] The partition 5 is made of ceramic or metal alloy materials with high specific heat capacity and good thermal conductivity.

[0039] The material of the partition 5 is a ceramic material or metal alloy material with high specific heat capacity and thermal conductivity. The high specific heat capacity allows the partition 5 to store more heat. When the heat output of the heating source 4 fluctuates, it can play a buffering role and maintain the relative stability of the thermal environment. The good thermal conductivity is conducive to the transfer and diffusion of heat in the partition 5. The heat flow can be better evenly distributed through the air outlet, further ensuring the uniform heating of the heat shrink tube.

[0040] During use, firstly, the operator presses or pulls the pressure rod 102, which, with the assistance of the auxiliary rod 201, stably drives the connecting block 101, thereby controlling the upper clamping block 1 to rotate around the shaft 8, opening the upper clamping block 1 and the lower clamping block 2. Next, the air tube and collection bag are placed in the clamping groove 7, which securely clamps them. Then, the pressure rod 102 is released, and under the action of the elastic element 9, the upper clamping block 1 and the lower clamping block 2 return to their original positions and close. After that, the heating source 4 is activated, and the heating source 4 begins to generate heat, which diffuses within the groove 3. At this time, the partition 5, utilizing its high specific heat capacity and good thermal conductivity, buffers and stores the heat, and distributes the heat evenly through the air outlet. Simultaneously, the fan 6 quickly transfers the heat generated by the heating source 4 to the heat shrink tubing, causing the heat shrink tubing to be evenly heated and shrink while suspended within the groove 3.

[0041] The temperature control device and power supply device required above are all existing technologies and are not essential technical features in this application. Therefore, they are not described or drawn in the documents and drawings of this application. The figures in the drawings are illustrative and are intended only to more intuitively show the key structure and connection relationship of the heat shrink tubing heat shrinking device of this utility model. In practical applications, the appearance and size of the device can be adjusted and optimized according to specific needs.

[0042] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A heat shrink tubing heat shrinking device, comprising an upper clamp (1) and a lower clamp (2), characterized in that: The upper clamping block (1) and the lower clamping block (2) are rotatably connected, and the upper clamping block (1) and the lower clamping block (2) are used to clamp the trachea and the collection bag; A groove (3) is formed on the upper clamping block (1) and the lower clamping block (2), and the adjacent surfaces of the groove (3) on the upper clamping block (1) and the groove (3) on the lower clamping block (2) are connected. The groove (3) is used to make the heat shrink tube suspend. There are two heating sources (4), and the two heating sources (4) are respectively set in the grooves (3) on the upper clamping block (1) and the lower clamping block (2). The heating sources (4) are used to generate heat so that the heat shrink tube is heated and shrinks evenly.

2. The heat shrink tubing heat shrinking device according to claim 1, characterized in that, Also includes: The partition (5) is installed in the groove (3) and is located between the two heating sources (4) and does not interfere with the heat shrink tube. The partition (5) has multiple through air outlet holes. The partition (5) is used to distribute the heat flow evenly so as to prevent the heat shrink tube from overheating locally.

3. The heat shrink tubing heat shrinking device according to claim 1, characterized in that, Also includes: A connecting block (101) is stably connected to the upper clamping block (1), and the connecting block (101) is used to connect the upper clamping block (1) and the lower clamping block (2); A shaft (8) is installed inside the lower clamping block (2). The shaft (8) is used to connect the connecting block (101) and the lower clamping block (2) for rotational connection.

4. A heat shrink tubing heat shrinking device according to claim 3, characterized in that, Also includes: An elastic element (9) is installed on the shaft (8). The elastic element (9) is used to reset the upper clamping block (1) and the lower clamping block (2) after they are opened.

5. A heat shrink tubing heat shrinking device according to claim 3, characterized in that, Also includes: A pressure rod (102) is stably connected to a connecting block (101), and the pressure rod (102) is located at the end of the connecting block (101) away from the upper clamping block (1). The pressure rod (102) is used to control the rotation of the upper clamping block (1). An auxiliary rod (201) is stably connected to the lower clamping block (2), and the auxiliary rod (201) and the pressure rod (102) are on the same side. The auxiliary rod (201) is used to assist the pressure rod (102) in controlling the rotation of the upper clamping block (1).

6. A heat shrink tubing heat shrinking device according to claim 1, characterized in that, Also includes: The fan (6) is provided in multiple locations, and the multiple fans (6) are respectively installed in the grooves (3) on the upper clamping block (1) and the lower clamping block (2). The fan (6) is located on the side of the heating source (4), and the fan (6) is used to quickly transfer the heat generated by the heating source (4) to the heat shrink tubing.

7. A heat shrink tubing heat shrinking device according to claim 1, characterized in that, Also includes: Multiple clamping slots (7) are provided, and the clamping slots (7) are opened on the adjacent surfaces of the upper clamping block (1) and the lower clamping block (2). The clamping slots (7) are used to provide the clamping positions for the collection bag and the trachea.

8. A heat shrink tubing heat shrinking device according to claim 2, characterized in that: The partition (5) is made of ceramic material or metal alloy material with high specific heat capacity and thermal conductivity.