Silica gel boiling fitting tool

Abstract

The invention relates to the technical field of injection molding lamination, in particular to a silica gel boiling lamination tool which comprises a positioning frame and silica gel blocks, the silica gel blocks are laid in the positioning frame, the positioning frame is full of the silica gel blocks, the surfaces of the silica gel blocks serve as working faces for placing membranes, and the silica gel blocks can be converted into a high-elasticity state after being heated. After the high-elastic silica gel block is pressed, the concave-convex area on the surface of the diaphragm can be automatically filled, too large or too small local pressure is avoided, meanwhile, uniform contact of pressing faces is guaranteed through deformation of the silica gel block, the leveling effect is achieved, the generation probability of bubbles between the diaphragm and an injection molding part is reduced, and the service life of the injection molding part is prolonged. And the high-elastic silica gel block can uniformly disperse the pressure under the action of the pressure, so that a buffering effect on the diaphragm can be achieved.

Description

Technical Field

[0001] This application relates to the technical field of injection molding bonding, and in particular to a silicone bonding fixture. Background Technology

[0002] The bonding fixture is a positioning fixture used in the bonding process of film and injection molded parts. It mainly ensures that the two are accurately positioned and evenly contacted during the bonding process by precise positioning, fixing and alignment, thereby achieving a high-quality and high-efficiency bonding effect.

[0003] However, in the existing technology, after the diaphragm is bonded to the injection molded part, air bubbles are easily generated between the diaphragm and the injection molded part, resulting in a loose bond between the diaphragm and the injection molded part, which reduces the production quality of the diaphragm and the injection molded part. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide a silicone bonding fixture for reducing the probability of air bubbles forming between the film and the injection molded part, thereby improving the production quality of the bonding between the film and the injection molded part.

[0005] The above-mentioned objective of this application is achieved through the following technical solution: a silicone bonding fixture, comprising a positioning frame and silicone blocks, wherein the silicone blocks are laid inside the positioning frame, the silicone blocks cover the positioning frame, and the surface of the silicone blocks serves as a working surface for placing films.

[0006] By adopting the above technical solution, the operator places the diaphragm on the upper surface of the silicone block, then places the injection molded part on the diaphragm, and then starts the hot press. The hot press output pressures the injection molded part against the diaphragm, while the output heats up. This heat is transferred to the injection molded part, the diaphragm, and the silicone block, activating the OCA adhesive on the diaphragm. The activated OCA adhesive causes the diaphragm to adhere to the injection molded part. Simultaneously, the heat transforms the silicone block into a highly elastic state. The highly elastic silicone block is in a softened state but still retains a certain degree of elasticity. At this point, the hardness of the silicone block is Shore A 10-30 (Shore A 10-30). A hardness unit (A) is an internationally recognized standard for quantifying the hardness of elastic materials. This allows the highly elastic silicone block to automatically fill the uneven areas on the diaphragm surface when subjected to pressure, preventing excessive or insufficient local pressure. At the same time, its own deformation ensures uniform contact of the pressing surface, achieving a leveling effect. This reduces the probability of air bubbles forming between the diaphragm and the injection molded part, thereby improving the production quality of the diaphragm-injection molded part bonding. Furthermore, the highly elastic silicone block can evenly distribute pressure under pressure, providing a buffering effect for the diaphragm.

[0007] Furthermore, the bottom surface of the positioning frame is provided with a base with an area larger than the positioning frame. The base is used to be installed on the hot press. The side of the base connected to the positioning frame is provided with an ejector assembly that surrounds the positioning frame.

[0008] Furthermore, the ejection assembly includes multiple ejection rods, multiple ejection springs, and an ejection plate. The multiple ejection rods are distributed around the periphery of the positioning frame and slidably inserted into the base. The number of ejection springs is the same as the number of ejection rods, and all ejection springs are correspondingly sleeved on the ejection rods. All ejection rods are connected to the edge of the ejection plate. The ejection plate has a vertical through-hole to place the diaphragm on the silicone block through the through-hole. The top of the ejection spring abuts against the bottom surface of the ejection plate.

[0009] While heating the silicone block can improve the bonding quality between the film and the injection molded part, the heated silicone block has a slight adhesiveness during actual production. Although it doesn't completely adhere to the film, workers still need to manually peel the bonded film and injection molded part from the silicone block 10 when removing them. However, the newly bonded film and injection molded part are at a high temperature, which could cause burns to workers when removing them. The ejector assembly solves this problem. With the ejector assembly, workers can easily remove the film and injection molded part through the through-hole... The diaphragm is placed on the silicone block, and then the two ends of the injection molded part are placed on the opposite edges of the ejector plate. At this time, the injection molded part is a certain distance from the diaphragm. After the injection molded part is pressed by the hot press, it sinks down and fits with the diaphragm. At the same time, the sinking injection molded part drives the ejector plate to move down, compressing the ejector spring. After the hot pressing is completed, the output end of the hot press is detached from the injection molded part. At this time, the compressed ejector spring releases its elasticity and pushes the injection molded part up, so that the injection molded part and the diaphragm are separated from the silicone block. In this way, the operator can use a rod-shaped or stick-shaped tool to push the fitted injection molded part out of the positioning frame, making it safer and more convenient for the operator to remove the fitted diaphragm and injection molded part.

[0010] Furthermore, the silicone block includes a base layer and a working layer. The base layer includes a first silicone layer and a mesh metal frame. The mesh metal frame is embedded inside the first silicone layer, and the first silicone layer surrounds the mesh metal frame. The working layer includes a second silicone layer, which surrounds the first silicone layer and is used to level the diaphragm. The first silicone layer has a higher hardness than the second silicone layer.

[0011] While heating the silicone block can improve the production quality of bonding the film to the injection molded part, the high temperature and frequent pressure of the hot press can cause the silicone block to age faster, resulting in decreased performance and a shorter service life. The base layer solves this problem. When the working layer deforms under pressure, the pressure is transferred through the first silicone layer to the mesh metal frame. The mesh metal frame acts like a "skeleton" to support the working layer and the first silicone layer, allowing them to quickly return to their initial state after the pressure is removed. This effectively inhibits the accelerated aging of the silicone block due to frequent pressure at high temperatures, greatly improving its service life.

[0012] Furthermore, the silicone bonding fixture also includes a heat preservation device, which is connected to the base to heat and preserve the base.

[0013] Furthermore, the base has an internal heat-insulating space. The heat-insulating device includes a circulating hot water tank, a water supply pipe, and a return pipe. One end of the water supply pipe is fixedly connected to the base and communicates with the heat-insulating space inside the base. The other end of the water supply pipe is connected to the water supply end of the circulating hot water tank. One end of the return pipe is fixedly connected to the base and communicates with the heat-insulating space inside the base. The other end of the return pipe is connected to the return end of the circulating hot water tank.

[0014] While heating the silicone block can improve the bonding quality between the diaphragm and the injection molded part, the temperature of the silicone block fluctuates significantly after the hot press output is retracted during actual production. This makes it difficult for the silicone block to maintain a constant high temperature (above 80°C), easily dropping below 80°C and causing it to harden. Furthermore, because the silicone block receives the heat from the hot press output through the diaphragm and the injection molded part, the time it takes for the silicone block to rise above 80°C and gradually transform into a highly elastic state is lengthy, greatly impacting production efficiency. The insulation device and its associated space solve this technical problem. By activating the circulating hot water tank, the hot water is pumped through a pipe into the insulation space inside the base. Hot water in the insulated space flows back to the circulating hot water tank through the return pipe, and after being heated by the circulating hot water tank, it is output to the insulated space inside the base through the supply pipe to form a heat circulation. This heat circulation keeps the base at a certain high temperature (90℃-100℃). At the same time, this high temperature is transferred to the positioning frame through the base, so that the silicone block inside the positioning frame always remains in a highly elastic state. This eliminates the need to wait for the silicone block to rise to a temperature above 80℃ and gradually transform into a highly elastic state, allowing the silicone block to directly level the diaphragm, thereby improving the production efficiency of bonding the injection molded part to the diaphragm. In addition, the circulating hot water forms a closed loop flow inside the base through the supply and return pipes, which allows the base to efficiently store and transfer heat, ensuring uniform temperature distribution of the silicone block and avoiding uneven activation of OCA glue due to local temperature fluctuations.

[0015] Furthermore, the base has a connection hole on the side near the positioning frame that connects to the heat preservation space, and the bottom surface of the positioning frame is provided with a heat-conducting component that extends into the heat preservation space through the connection hole.

[0016] Furthermore, the heat-conducting component includes a heat-conducting rod and a sealing element. One end of the heat-conducting rod is fixedly connected to the bottom surface of the positioning frame, and the other end of the heat-conducting rod extends into the insulation space through a connecting hole. The sealing element includes a rubber sealing ring, which is sleeved on the upper end of the heat-conducting rod and fixedly connected to it. The outer diameter of the rubber sealing ring and the inner diameter of the connecting hole are interference-fitted. The positioning frame is mounted on the base through the heat-conducting rod and the rubber sealing ring.

[0017] While the above technical solution improves the production efficiency of bonding injection molded parts with films, the heat from the hot water output to the insulation space still needs to be transferred to the positioning frame through the wall thickness of the base. This causes the base to affect the insulation effect of the insulation device to some extent. The heat-conducting component solves this technical problem. Through the heat-conducting component, the heat-conducting rod extends into the insulation space through the connecting hole, directly contacting the hot water inside the insulation space. This allows the heat to be efficiently transferred to the positioning frame through the heat-conducting rod, enabling the positioning frame to quickly and stably receive the heat source from the insulation device. The bottom surface of the positioning frame is still attached to the base, and it can stably receive the heat from the base. This ensures that the heat source of the insulation device can be stably transferred to the positioning frame to insulate the silicone block, thus improving the insulation effect of the insulation device. However, due to limitations in machining precision, the heat-conducting rod cannot perfectly match the connecting hole. This can lead to gaps between the heat-conducting rod and the connecting hole, allowing hot water inside the insulation space to leak out and affecting the processing environment. The sealing element solves this technical problem. By using the sealing element, after the heat-conducting rod is inserted into the connecting hole, the rubber sealing ring contacts the inner wall of the connecting hole as the heat-conducting rod extends. Because the outer diameter of the rubber sealing ring and the inner diameter of the connecting hole are interference-fitted, the inner wall of the connecting hole compresses the rubber sealing ring, causing the outer diameter of the rubber sealing ring to contact the inner wall of the connecting hole. The inner wall of the rubber sealing ring fits snugly against the inner wall of the connection hole, while the rubber sealing ring applies an elastic reaction force to the inner wall of the connection hole, making the outer diameter of the rubber sealing ring fit tightly against the inner wall of the connection hole, preventing hot water leakage inside the insulation space. Furthermore, through the cooperation of the rubber sealing ring and the heat-conducting rod, the positioning frame can be detachably installed on the base. When the staff needs to replace the silicone block, they only need to pull out the positioning frame, so that the rubber sealing ring and the heat-conducting rod are detached from the connection hole. Then, the staff can install the new positioning frame and silicone block on the base, making it easier for the staff to replace the positioning frame and silicone block.

[0018] Furthermore, a plurality of support blocks are fixedly provided on the bottom surface of the base, with a gap between the plurality of support blocks.

[0019] By adopting the above technical solution, the support block acts as a "sacrificial layer" to preferentially bear the friction between the base and the hot press base surface, protecting the base body from wear and extending the service life of the base.

[0020] Furthermore, the bottom surface of the support block is provided with anti-slip holes.

[0021] By adopting the above technical solution, the anti-slip holes are used to cooperate with the protrusions on the installation area of ​​the hot press, so that the protrusions extend into the anti-slip holes to lock the support block, thereby making the base stably placed on the hot press.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up the silicone block, the highly elastic silicone block will automatically fill the uneven areas on the surface of the diaphragm when subjected to pressure, avoiding excessive or insufficient local pressure. At the same time, its own deformation ensures uniform contact of the pressing surface, achieving a leveling effect. This reduces the probability of air bubbles forming between the diaphragm and the injection molded part, thereby improving the production quality of the bonding between the diaphragm and the injection molded part. Furthermore, the highly elastic silicone block can evenly distribute pressure under pressure, which can buffer the diaphragm.

[0023] 2. By setting up a base layer and a working layer, when the working layer is deformed under pressure, the pressure is transmitted to the mesh metal frame through the first silicone layer. The mesh metal frame acts like a "skeleton" to support the working layer and the first silicone layer, so that the working layer and the first silicone layer can quickly return to their initial state after the pressure is removed. This effectively inhibits the accelerated aging of the silicone block after frequent pressure at high temperatures, and greatly improves the service life of the silicone block.

[0024] 3. The heat-conducting components allow heat to be efficiently transferred to the positioning frame via the heat-conducting rod. This enables the positioning frame to quickly and stably receive the heat source from the insulation device while remaining attached to the base. Simultaneously, the positioning frame can reliably receive heat from the base, ensuring a stable transfer of heat from the insulation device to the positioning frame to insulate the silicone block and improve the insulation effect. Furthermore, the sealing elements, specifically the rubber sealing ring, apply an elastic reaction force to the inner wall of the connection hole, ensuring a tight fit between the outer diameter of the rubber sealing ring and the inner wall of the connection hole. This prevents hot water leakage from the insulation space. The combination of the rubber sealing ring and the heat-conducting rod also allows the positioning frame to be detachably mounted on the base, making it easier for staff to replace the positioning frame and silicone block. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the embodiment; Figure 2 yes Figure 1 Enlarged view of section A in the middle; Figure 3 yes Figure 1 A partial sectional view; Figure 4 yes Figure 3 Enlarged view of section B in the middle; Figure 5 This is a bottom view of the overall structure of the embodiment.

[0026] Reference numerals: 1. Positioning frame; 10. Silicone block; 100. Base layer; 1000. First silicone layer; 1001. Grid metal frame; 101. Working layer; 2. Base; 20. Insulation space; 21. Connecting hole; 22. Support block; 23. Anti-slip hole; 3. Ejection assembly; 30. Ejection rod; 31. Ejection spring; 32. Ejection plate; 33. Through port; 4. Insulation device; 41. Water supply pipe; 42. Water return pipe; 5. Heat conduction assembly; 50. Heat conduction rod; 51. Sealing element. Detailed Implementation

[0027] The present application will be further described in detail below with reference to the accompanying drawings.

[0028] In the existing technology, a diaphragm is placed on a bonding fixture, and then the injection molded part is placed on the diaphragm. Then, a hot press is started, so that the output end of the hot press presses the injection molded part and the diaphragm to bond. At the same time, the output end of the hot press heats up, and the heat is transferred to the injection molded part and the diaphragm, which activates the OCA (Optically Clear Adhesive) on the diaphragm. The activated OCA adhesive causes the diaphragm to adhere to the injection molded part, thus completing the bonding of the diaphragm and the injection molded part.

[0029] However, in actual production, due to limitations in processing precision, the plane of the bonding fixture and the surface of the film are not completely flat. This leads to air bubbles easily forming between the film and the injection molded part, resulting in poor bonding and reducing the production quality of the film and the injection molded part. Therefore, this embodiment proposes a silicone bonding fixture.

[0030] Reference Figure 1 A silicone bonding fixture includes a positioning frame 1 and silicone blocks 10. The silicone blocks 10 are laid inside the positioning frame 1, covering the entire positioning frame 1, and the surface of the silicone blocks 10 serves as the working surface for placing the film.

[0031] Specifically, the positioning frame 1 mainly consists of a base plate and four vertical plates. The base plate is quadrilateral, and the four vertical plates are vertically fixed on the four sides of the base plate to form the positioning frame 1. The silicone block 10 is placed in the space formed by the four vertical plates and the base plate.

[0032] The operator places the diaphragm on the upper surface of the silicone block 10, then places the injection molded part on the diaphragm, and then starts the hot press. The hot press output compresses the injection molded part against the diaphragm, while simultaneously heating the output. This heat is transferred to the injection molded part, the diaphragm, and the silicone block 10, activating the OCA adhesive on the diaphragm. The activated OCA adhesive causes the diaphragm to adhere to the injection molded part. The heat also transforms the silicone block 10 into a highly elastic state. In this highly elastic state, the silicone block 10 is softened but still retains a certain degree of elasticity. At this point, the hardness of the silicone block 10 is Shore A 10-30 (Shore... A hardness unit is an internationally recognized standard for quantifying the hardness of elastic materials. This allows the highly elastic silicone block 10 to automatically fill the uneven areas on the surface of the diaphragm when subjected to pressure, avoiding excessive or insufficient local pressure. At the same time, its own deformation ensures uniform contact of the pressing surface, achieving a leveling effect. This reduces the probability of air bubbles forming between the diaphragm and the injection molded part, thereby improving the production quality of the bonding between the diaphragm and the injection molded part. Furthermore, the highly elastic silicone block 10 can evenly distribute pressure under pressure, providing a buffering effect for the diaphragm.

[0033] Although heating the silicone block 10 can improve the production quality of the bonding between the film and the injection molded part, in actual production, the heated silicone block 10 has a slight stickiness. While it doesn't completely adhere to the film, workers still need to manually peel the bonded film and injection molded part completely off the silicone block 10 when removing them. However, the newly bonded film and injection molded part are still at a high temperature, which could cause burns to workers when removing them. To solve this technical problem, refer to... Figure 1 and Figure 2 In this embodiment, a base 2 with an area larger than that of the positioning frame 1 is provided on the bottom surface of the positioning frame 1. The base 2 is used to install on the hot press. The side of the base 2 connected to the positioning frame 1 is provided with an ejector assembly 3 surrounding the positioning frame 1. The ejector assembly 3 includes multiple ejector rods 30, multiple ejector springs 31, and an ejector plate 32. The multiple ejector rods 30 are distributed around the periphery of the positioning frame 1 and are slidably inserted into the base 2. The number of ejector springs 31 is the same as that of the ejector rods 30, and all the ejector springs 31 are correspondingly sleeved on the ejector rods 30. All the ejector rods 30 are respectively connected to the edge of the ejector plate 32. The ejector plate 32 has a vertical through-hole 33 to place the diaphragm on the silicone block 10 through the through-hole 33. The top of the ejector spring 31 abuts against the bottom surface of the ejector plate 32.

[0034] Specifically, the base 2 is primarily rectangular. It contains multiple ejector rods 30, such as two, three, or four. In this embodiment, there are four ejector rods 30, located at the four corners of the base 2. The ejector plate 32 can be connected to the ejector rods 30 by welding, bonding, or threading. The ejector spring 31 is simply fitted onto the ejector rods 30, with its bottom end abutting against the base 2 and its top end abutting against the bottom surface of the ejector plate 32.

[0035] With the ejector assembly 3 in place, the operator places the diaphragm on the silicone block 10 through the through-hole 33, and then places both ends of the injection molded part on the opposite sides of the ejector plate 32. At this time, the injection molded part is a certain distance away from the diaphragm. After the injection molded part is pressed by the hot press, it sinks down and fits with the diaphragm. At the same time, the sinking injection molded part drives the ejector plate 32 to move down, compressing the ejector spring 31. After the hot pressing is completed, the output end of the hot press is detached from the injection molded part. At this time, the compressed ejector spring 31 releases its elasticity and pushes the injection molded part up, so that the injection molded part and the diaphragm are separated from the silicone block 10. In this way, the operator can use a rod-shaped or stick-shaped tool to push the fitted injection molded part away from the positioning frame 1, making it safer and more convenient for the operator to remove the fitted diaphragm and injection molded part.

[0036] The injection molded part is mainly door-shaped, consisting of two shorter vertical plates and a large horizontal plate. When the injection molded part is placed on the ejector plate 32, the bottom ends of the two shorter vertical plates abut against the edges of the ejector plate 32 on both sides. Other shaped injection molded parts can also be ejected by the ejector assembly 3, as long as both ends of the injection molded part rest on the ejector plate 32.

[0037] In one embodiment, a collection box is provided on one side of the positioning frame 1, with the opening of the collection box facing upwards. This way, when the worker uses a rod-shaped or stick-shaped tool to push the molded part that has been bonded, it can be pushed towards the collection box, causing the molded part that has detached from the positioning frame 1 to fall into the collection box, so that the worker can collect the molded part that has been bonded.

[0038] Although heating the silicone block 10 can improve the production quality of the bonding between the film and the injection molded part, the silicone block 10 needs to withstand high temperatures and frequent pressure from the hot press, which may cause it to age faster, resulting in decreased performance and a shorter lifespan. To solve this technical problem, refer to... Figure 3In this embodiment, the silicone block 10 includes a base layer 100 and a working layer 101. The base layer 100 includes a first silicone layer 1000 and a mesh metal frame 1001. The mesh metal frame 1001 is embedded inside the first silicone layer 1000 and surrounds the mesh metal frame 1001. The working layer 101 includes a second silicone layer. The second silicone layer surrounds the first silicone layer 1000 and is used to level the diaphragm. The first silicone layer 1000 has a higher hardness than the second silicone layer.

[0039] Specifically, the first silicone layer 1000 can be made of a special silicone rubber system (such as fluorosilicone rubber, phenyl silicone rubber, nitrile silicone rubber, or borosilicate rubber). Regarding the second silicone layer, a high-elasticity conversion silicone rubber (such as high-crosslinking-density silicone rubber, temperature-responsive shape memory silicone rubber, or filler-reinforced rigid silicone rubber) can be used. High-elasticity conversion silicone rubber has the characteristic of being rigid at low temperatures (below 80 degrees Celsius) and highly elastic at high temperatures (above 80 degrees Celsius). Regarding the mesh metal frame 1001, it can be made of an iron-based low-expansion alloy (such as super Invar alloy or stainless Invar alloy). The coefficient of thermal expansion of the iron-based low-expansion alloy is close to that of silicone rubber, which can effectively constrain the three-dimensional deformation of the working layer 101 and the first silicone layer 1000.

[0040] With the base layer 100 in place, when the working layer 101 deforms under pressure, the pressure is transmitted through the first silicone layer 1000 to the mesh metal frame 1001. The mesh metal frame 1001 acts like a "skeleton" to support the working layer 101 and the first silicone layer 1000, so that the working layer 101 and the first silicone layer 1000 can quickly return to their initial state after the pressure is removed. This effectively inhibits the accelerated aging of the silicone block 10 after frequent pressure at high temperatures, and greatly improves the service life of the silicone block 10.

[0041] Although heating the silicone block 10 can improve the production quality of the bonding between the diaphragm and the injection molded part, in actual production, after the hot press output end is retracted, the temperature of the silicone block 10 fluctuates greatly. The silicone block 10 cannot maintain a constant high temperature (above 80℃) and easily drops below 80℃, causing it to harden. Furthermore, because the silicone block 10 receives the temperature from the hot press output end through the diaphragm and the injection molded part, the time it takes for the silicone block 10 to rise to above 80℃ and gradually transform into a highly elastic state is relatively long, significantly impacting production efficiency. To solve this technical problem, refer to... Figure 1In this embodiment, an insulation space 20 is provided inside the base 2, and an insulation device 4 communicating with the insulation space 20 is provided on one side of the base 2. The insulation device 4 includes a circulating hot water tank, a water supply pipe 41, and a return water pipe 42. One end of the water supply pipe 41 is fixedly connected to the base 2 and communicates with the insulation space 20 inside the base 2. The other end of the water supply pipe 41 is connected to the water supply end of the circulating hot water tank. One end of the return water pipe 42 is fixedly connected to the base 2 and communicates with the insulation space 20 inside the base 2. The other end of the return water pipe 42 is connected to the return water end of the circulating hot water tank.

[0042] The circulating hot water tank is existing technology and will not be described in detail here. Regarding the water supply pipe 41 and the return pipe 42, they can be installed on the base 2 and the circulating hot water tank using threaded connections or other detachable connection methods.

[0043] The operator activates the circulating hot water tank, which outputs hot water through the water supply pipe 41 to the insulation space 20 inside the base 2. The hot water in the insulation space 20 then flows back to the circulating hot water tank through the return pipe 42. After being heated again by the circulating hot water tank, it is output to the insulation space 20 inside the base 2 through the water supply pipe 41, forming a heat circulation. This heat circulation keeps the base 2 at a certain high temperature (90℃-100℃). At the same time, this high temperature is transferred to the positioning frame 1 through the base 2, keeping the silicone block 10 inside the positioning frame 1 in a highly elastic state. This eliminates the need to wait for the silicone block 10 to rise to a temperature above 80℃ and gradually transform into a highly elastic state, allowing the silicone block 10 to directly level the diaphragm, thereby improving the production efficiency of bonding the injection molded part to the diaphragm. Furthermore, the circulating hot water forms a closed loop flow inside the base 2 through the water supply pipe 41 and the return pipe 42, enabling the base 2 to efficiently store and transfer heat, ensuring uniform temperature distribution of the silicone block 10 and avoiding uneven activation of the OCA adhesive due to local temperature fluctuations.

[0044] In other embodiments, heating elements (such as heating wires or heating tubes) can be directly installed in the insulation space 20, and a temperature control device for controlling the heating elements can be provided on the outside of the base 2. The heating elements are heated to 90°C-100°C by the temperature control device, so that the base 2 always maintains a certain high temperature (90°C-100°C), and the high temperature is transferred to the positioning frame 1 through the base 2, so that the silicone block 10 inside the positioning frame 1 always maintains a highly elastic state. Compared to the insulation device 4 in this embodiment, the structure using a temperature control device and a heating element is simpler and less expensive. On the other hand, the heating element needs to be heated frequently and is prone to oxidation and breakage under repeated thermal shocks. The lifespan of the heating element is only about 2-5 years. In this embodiment, the heat source (hot water) is transferred to the insulation space 20 through the water supply pipe 41 and the return water pipe 42. During this process, only the pipes and the base 2 bear the high temperature. The service life of the pipes and the base 2 can reach more than 10 years if there are no material limitations. Therefore, compared to the embodiment using a temperature control device and a heating element structure, the insulation device 4 in this embodiment has a longer service life and can be flexibly selected according to needs in practical applications.

[0045] In one embodiment, a solar energy collection device can be installed outside the factory. The solar energy collection device is connected to the insulation device 4 by circuitry. The solar energy collection device can be used to power the insulation device 4, which can greatly reduce the energy consumption of the insulation device 4.

[0046] In one embodiment, an industrial waste heat collection device can be installed inside the factory. The industrial waste heat collection device is connected to the insulation device 4 through a pipeline. The industrial waste heat collection device provides a heat source for the insulation device 4, which can greatly reduce the energy consumption of the insulation device 4.

[0047] Although the insulation device 4 improves the production efficiency of bonding the injection molded parts to the film, the heat output from the insulation device 4 to the hot water in the insulation space 20 still needs to be transferred to the positioning frame 1 through the wall thickness of the base 2. This causes the base 2 to affect the insulation effect of the insulation device 4 to some extent. (Refer to...) Figure 4 To solve this technical problem, this embodiment provides a connection hole 21 for communicating with the insulation space 20 on the side of the base 2 near the positioning frame 1. The bottom surface of the positioning frame 1 is provided with a heat-conducting component 5 that extends into the insulation space 20 through the connection hole 21. The heat-conducting component 5 includes a heat-conducting rod 50 and a sealing element 51. One end of the heat-conducting rod 50 is fixedly connected to the bottom surface of the positioning frame 1, and the other end of the heat-conducting rod 50 extends into the insulation space 20 through the connection hole 21. The sealing element 51 includes a rubber sealing ring, which is sleeved on the upper end of the heat-conducting rod 50 and fixedly connected to the heat-conducting rod 50. The outer diameter of the rubber sealing ring and the inner diameter of the connection hole 21 are interference fit. The positioning frame 1 is mounted on the base 2 through the heat-conducting rod 50 and the rubber sealing ring.

[0048] Specifically, two or more heat-conducting rods 50 can be provided, and two or more connecting holes 21 can also be provided. The heat-conducting rods 50 can be fixedly connected to the bottom surface of the positioning frame 1 by welding or integration. The rubber sealing ring can be installed on the heat-conducting rods 50 by adhesive bonding or hot melting.

[0049] With the heat-conducting component 5 in place, the heat-conducting rod 50 extends into the insulation space 20 through the connecting hole 21, directly contacting the hot water inside the insulation space 20. This allows heat to be efficiently transferred to the positioning frame 1 through the heat-conducting rod 50, enabling the positioning frame 1 to quickly and stably receive the heat source of the insulation device 4. The bottom surface of the positioning frame 1 remains attached to the base 2, and it can stably receive the heat from the base 2. This ensures that the heat source of the insulation device 4 can be stably transferred to the positioning frame 1 and insulate the silicone block 10, thereby improving the insulation effect of the insulation device 4.

[0050] Furthermore, due to the influence of processing precision, the heat-conducting rod 50 cannot be perfectly matched with the connecting hole 21. This may result in a gap between the heat-conducting rod 50 and the connecting hole 21, through which hot water inside the insulation space 20 may leak out, affecting the processing environment. The sealing element 51 solves this technical problem. After the heat-conducting rod 50 is inserted into the connecting hole 21, the rubber sealing ring contacts the inner wall of the connecting hole 21 as the heat-conducting rod 50 extends. Because the outer diameter of the rubber sealing ring and the inner diameter of the connecting hole 21 are interference fit, the inner wall of the connecting hole 21 will compress the rubber sealing ring, making the outer diameter of the rubber sealing ring fit against the inner wall of the connecting hole 21. At the same time, the rubber sealing ring will apply an elastic reaction force to the inner wall of the connecting hole 21, making the outer diameter of the rubber sealing ring fit tightly against the inner wall of the connecting hole 21, preventing hot water leakage inside the insulation space 20. Furthermore, the rubber sealing ring and the heat-conducting rod 50 work together to allow the positioning frame 1 to be detachably mounted on the base 2. When the staff needs to replace the silicone block 10, they only need to pull out the positioning frame 1, so that the rubber sealing ring and the heat-conducting rod 50 are disengaged from the connection hole 21. Then the staff can install the new positioning frame 1 and silicone block 10 on the base 2, making it easier for the staff to replace the positioning frame 1 and silicone block 10.

[0051] In other embodiments, the sealing element 51 can be replaced by a nut, and an external thread extending along the length of the heat-conducting rod 50 is formed on the outside of the heat-conducting rod 50, so that the nut is threaded onto the heat-conducting rod 50 through the external thread. When the heat-conducting rod 50 is inserted into the connecting hole 21, the bottom surface of the nut is pressed against the upper surface of the heat-insulating space 20 by tightening the nut, thereby blocking the gap between the heat-conducting rod 50 and the connecting hole 21, which can also prevent the hot water inside the heat-insulating space 20 from leaking. Moreover, compared with the sealing element 51 in this embodiment, when the nut needs to be replaced, it can be simply unscrewed, making replacement more convenient. On the other hand, since the positioning frame 1 relies on the heat-conducting rod 50 to be mounted on the base 2, and the nut only has the effect of preventing hot water leakage, the sealing element 51 in this embodiment increases the sealing performance between the heat-conducting rod 50 and the connecting hole 21 through the interference fit between the outer diameter of the rubber sealing ring and the inner diameter of the connecting hole 21. This allows the heat-conducting rod 50 and the connecting hole 21 to be sealed better in conjunction with the rubber sealing ring. Therefore, compared with the embodiment where the nut is the sealing element 51, the sealing element 51 in this embodiment can make the sealing effect of the heat-conducting component 5 better. In practical applications, it can be flexibly selected according to needs.

[0052] Reference Figure 5 In this embodiment, a plurality of support blocks 22 are fixedly provided on the bottom surface of the base 2, and there is a gap between the plurality of support blocks 22.

[0053] Specifically, the support block 22 comprises three blocks, which are respectively disposed on both sides and the middle of the base 2 to provide support for the base 2. In other embodiments, the number of support blocks 22 may also be other values, such as two, four, five, or six.

[0054] The support block 22 acts as a "sacrificial layer" to preferentially bear the friction between the base 2 and the hot press base surface, protecting the main body of the base 2 from wear and extending the service life of the base 2.

[0055] In this embodiment, the bottom surface of the support block 22 is provided with anti-slip holes 23. The anti-slip holes 23 are used to cooperate with the protrusions on the hot press installation area, so that the protrusions extend into the anti-slip holes 23 to lock the support block 22, thereby making the base 2 stably placed on the hot press.

[0056] In summary, the specific operation process of the silicone bonding fixture provided by the present invention is as follows: First, the circulating hot water tank is started, so that the hot water inside the circulating hot water tank is output to the heat preservation space 20 inside the base 2 through the water supply pipe 41; the hot water in the heat preservation space 20 can flow back to the circulating hot water tank through the return water pipe 42, and after being heated by the circulating hot water tank, it is output to the heat preservation space 20 inside the base 2 through the water supply pipe 41 to form a heat circulation; at the same time, the heat-conducting rod 50 and the base 2 transfer heat to the positioning frame 1 after being heated by the hot water, thereby heating the silicone block 10.

[0057] After the silicone block 10 is heated, it transforms into a highly elastic state. A diaphragm is placed on the upper surface of the silicone block 10, and then the injection molded part is placed on the diaphragm. The hot press is then started, causing the output end of the hot press to press the injection molded part against the diaphragm. Simultaneously, the output end of the hot press heats up, transferring heat to the injection molded part and the diaphragm, activating the OCA adhesive on the diaphragm. The activated OCA adhesive causes the diaphragm to adhere to the injection molded part. During this process, the highly elastic silicone block 10, under pressure, automatically fills the uneven areas on the diaphragm surface, preventing excessive or insufficient local pressure. Simultaneously, the deformation of the silicone block 10 ensures uniform contact of the pressing surfaces, achieving a leveling effect. This makes the diaphragm and injection molded part adhere more smoothly, reducing the probability of air bubbles forming between them. It should be noted that when the output end of the hot press presses the injection molded part against the diaphragm, the sinking injection molded part causes the ejector plate 32 to move downwards, compressing the ejector spring 31.

[0058] After the bonding is completed, the output end of the hot press is detached from the injection molded part. At this time, the ejector spring 31 releases its elastic force and pushes the injection molded part upward, so that the injection molded part and the film are separated from the silicone block 10. Then, the staff can use a rod-shaped or stick-shaped tool to push the bonded injection molded part to detach from the positioning frame 1.

[0059] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tooling for boiling silicone bonding, characterized in that, It includes a positioning frame and silicone blocks, the silicone blocks are laid inside the positioning frame and cover the entire positioning frame, and the surface of the silicone blocks serves as the working surface for placing the diaphragm.

2. The silicone bonding fixture according to claim 1, characterized in that, The bottom surface of the positioning frame is provided with a base with an area larger than the positioning frame. The base is used to be installed on the hot press. The side of the base connected to the positioning frame is provided with an ejector component that surrounds the positioning frame.

3. The silicone bonding fixture according to claim 2, characterized in that, The ejection assembly includes multiple ejection rods, multiple ejection springs, and an ejection plate. The multiple ejection rods are distributed around the periphery of the positioning frame and slidably inserted into the base. The number of ejection springs is the same as the number of ejection rods, and all ejection springs are correspondingly sleeved on the ejection rods. All ejection rods are connected to the edge of the ejection plate. The ejection plate has a vertical through-hole to place the diaphragm on the silicone block through the through-hole. The top of the ejection spring abuts against the bottom surface of the ejection plate.

4. The silicone bonding fixture according to claim 1, characterized in that, The silicone block includes a base layer and a working layer. The base layer includes a first silicone layer and a mesh metal frame. The mesh metal frame is embedded inside the first silicone layer. The first silicone layer surrounds the mesh metal frame. The working layer includes a second silicone layer. The second silicone layer surrounds the first silicone layer and is used to level the diaphragm. The first silicone layer has a higher hardness than the second silicone layer.

5. The silicone bonding fixture according to claim 2, characterized in that, The silicone bonding fixture also includes a heat preservation device, which is connected to the base to heat and preserve the base.

6. The silicone bonding fixture according to claim 6, characterized in that, The base has an internal heat-insulating space. The heat-insulating device includes a circulating hot water tank, a water supply pipe, and a return water pipe. One end of the water supply pipe is fixedly connected to the base and communicates with the heat-insulating space inside the base. The other end of the water supply pipe is connected to the water supply end of the circulating hot water tank. One end of the return water pipe is fixedly connected to the base and communicates with the heat-insulating space inside the base. The other end of the return water pipe is connected to the return water end of the circulating hot water tank.

7. The silicone bonding fixture according to claim 5, characterized in that, The base has a connection hole on the side near the positioning frame that connects to the heat preservation space, and the bottom surface of the positioning frame is provided with a heat-conducting component that extends into the heat preservation space through the connection hole.

8. The silicone bonding fixture according to claim 7, characterized in that, The heat-conducting component includes a heat-conducting rod and a sealing element. One end of the heat-conducting rod is fixedly connected to the bottom surface of the positioning frame, and the other end of the heat-conducting rod extends into the insulation space through a connecting hole. The sealing element includes a rubber sealing ring, which is sleeved on the upper end of the heat-conducting rod and fixedly connected to it. The outer diameter of the rubber sealing ring and the inner diameter of the connecting hole are interference-fitted. The positioning frame is mounted on the base through the heat-conducting rod and the rubber sealing ring.

9. The silicone bonding fixture according to claim 1, characterized in that, The base has multiple support blocks fixedly mounted on its bottom surface, with gaps between the support blocks.

10. The silicone bonding fixture according to claim 9, characterized in that, The bottom surface of the support block is provided with anti-slip holes.

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