A heat-conducting silica gel gasket calendering device

Abstract

This utility model relates to a calendering device for thermally conductive silicone pads, comprising a conveyor belt, symmetrically arranged fixed seats on the left side of the conveyor belt, bearings on the top of the fixed seats, a main pressure roller rotatably connected between the bearings, an installation ring fixed inside the bearings, extension blocks outside the installation ring, and auxiliary pressure rollers connected between the extension blocks, and a cleaning cylinder connected between the top left sides of the conveyor belt. This utility model, through cleaning structures such as the cleaning cylinder and cleaning roller, effectively removes dust, fibers, and other impurities from the surface of the thermally conductive silicone pads before calendering, preventing impurities from being squeezed and embedded inside the pads during calendering. This prevents impurities from damaging the internal microstructure of the pads and forming thermal resistance points, ensuring the overall thermal conductivity of the pads and enabling better efficient heat conduction. Furthermore, the wavy blade design and brush bristles on both sides of the cleaning roller allow it to generate undulating motion during rotation.

Description

Technical Field

[0001] This utility model belongs to the technical field of calendering equipment, specifically relating to a thermally conductive silicone pad calendering device. Background Technology

[0002] In many fields such as electronic devices and heat dissipation systems, thermally conductive silicone pads are usually placed between heat-generating components and heat sinks. Through their excellent softness, elasticity and good thermal conductivity, they fill the tiny gaps between the contact surfaces of the two, achieving efficient heat conduction. In the production process of thermally conductive silicone pads, pressure is applied to the thermally conductive silicone pads through a calender, so that the silicone material is pressed into a pad of a specific thickness and shape at a certain temperature.

[0003] In actual production environments, thermally conductive silicone materials inevitably come into contact with dust, fibers, and other impurities in the air during transportation, storage, and preliminary processing. If these impurities enter the calendering process without treatment, they will be squeezed and embedded inside the gasket during calendering. The doping of impurities will damage the microstructure inside the thermally conductive silicone gasket, forming thermal resistance points, hindering the smooth conduction of heat, and causing a decrease in the overall thermal conductivity of the gasket. Utility Model Content

[0004] The purpose of this invention is to provide a thermally conductive silicone pad calendering device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: Preferably, it includes a conveyor belt, with fixed seats symmetrically arranged on the left side of the conveyor belt, bearings on the top of the fixed seats, a main pressure roller rotatably connected between the bearings, an installation ring fixedly arranged inside the bearings, an extension block arranged outside the installation ring, a secondary pressure roller connected between the extension blocks, a cleaning cylinder connected between the top left sides of the conveyor belt, and a cleaning roller rotatably connected between the front and rear sides inside the cleaning cylinder.

[0006] Preferably, a motor is provided at the rear side of the fixed seat on one side, the output shaft of the motor is connected to the main pressure roller, and a belt is connected between the front side of the cleaning roller and the output shaft of the motor.

[0007] Preferably, the cleaning roller has a wavy blade in the middle, and brush bristles are provided on both sides of the wavy blade.

[0008] Preferably, the bottom of the cleaning cylinder is provided with a cleaning opening.

[0009] Preferably, a fan connection port is provided on the rear side of the top of the cleaning cylinder.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model effectively removes dust, fibers and other impurities from the surface of the thermally conductive silicone pad before calendering through cleaning structures such as cleaning cylinders and cleaning rollers. This prevents impurities from being squeezed and embedded inside the pad during the calendering process, thereby preventing impurities from damaging the internal microstructure of the pad and forming thermal resistance points. This ensures the overall thermal conductivity of the pad and enables it to achieve more efficient heat conduction.

[0012] This invention utilizes the wave-shaped blade design of the cleaning roller and the bristles on both sides to enable the cleaning roller to generate undulating motion during rotation. At the same time, the softness and elasticity of the bristles can penetrate into the tiny gaps on the surface of the pad to sweep out hidden dust and impurities without damaging the surface of the pad, thus achieving deep cleaning of the surface of the thermally conductive silicone pad.

[0013] This utility model is connected to a fan, which allows the dust and impurities after cleaning to be sucked out and discharged outside the device in a timely manner, effectively preventing the dust and impurities from returning to the surface of the thermally conductive silicone pad after cleaning, and further ensuring the quality of cleaning and calendering. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a three-dimensional structural diagram of the first part of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the second part of this utility model;

[0017] Figure 4 This is an exploded view of the cleaning cylinder in this utility model.

[0018] Numbering in the diagram: 1-Conveyor belt, 2-Fixed seat, 3-Bearing, 4-Main pressure roller, 5-Mounting ring, 6-Extension block, 7-Secondary pressure roller, 8-Cleaning cylinder, 9-Sweeping roller, 10-Belt, 11-Motor, 12-Wave blade, 121-Brush bristles, 13-Sweeping opening, 14-Fan connection port. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1

[0021] like Figures 1 to 4The thermally conductive silicone pad calendering device shown includes a conveyor belt 1, with fixed seats 2 symmetrically arranged on the left side of the conveyor belt 1. Bearings 3 are mounted on the top of the fixed seats 2, and main pressure rollers 4 are rotatably connected between the bearings 3. Mounting rings 5 ​​are fixed inside the bearings 3, and extension blocks 6 are mounted outside the mounting rings 5. Secondary pressure rollers 7 are connected between the extension blocks 6. A cleaning cylinder 8 is connected to the top left side of the conveyor belt 1. Cleaning rollers 9 are rotatably connected between the front and rear sides of the cleaning cylinder 8. A belt 10 is connected between the front side of the cleaning roller 9 and the output shaft of a motor 11. A motor 11 is located behind one of the fixed seats 2, and the output shaft of the motor 11 is connected to the main pressure rollers 4. The cleaning roller 9 has a corrugated blade 12 in the middle, and brush bristles 121 on both sides of the corrugated blade 12. A cleaning opening 13 is provided at the bottom of the cleaning cylinder 8. A fan connection port 14 is provided at the top rear side of the cleaning cylinder 8.

[0022] This invention utilizes a cleaning structure including a cleaning cylinder 8 and a cleaning roller 9 to effectively remove dust, fibers, and other impurities from the surface of the thermally conductive silicone pad before calendering. This prevents impurities from being squeezed and embedded inside the pad during calendering, thus preventing them from damaging the microstructure of the pad and forming thermal resistance points. This ensures the overall thermal conductivity of the pad, enabling it to achieve more efficient heat conduction. The wavy blade design 12 and brush bristles 121 on both sides of the cleaning roller 9 allow it to undulate during rotation. The softness and elasticity of the brush bristles 121 allow them to penetrate deep into the tiny crevices of the pad surface, sweeping out hidden dust and impurities without damaging the pad surface, achieving deep cleaning of the thermally conductive silicone pad. The invention is connected to a fan, allowing the cleaned dust and impurities to be promptly sucked out and discharged from the device, effectively preventing dust and impurities from returning to the surface of the thermally conductive silicone pad after cleaning, further ensuring the quality of cleaning and calendering.

[0023] Example 2

[0024] like Figures 1 to 4 The illustrated thermally conductive silicone pad calendering device includes a conveyor belt 1 for conveying the thermally conductive silicone pad to the left until it moves into the calendering structure for extrusion. The calendering structure specifically includes: symmetrically arranged fixed seats 2 on the left side of the conveyor belt 1, each fixed seat 2 having a bearing 3 on its top, and a main pressure roller 4 rotatably connected between the bearings 3, meaning the main pressure roller 4 can rotate through the connection of the inner layer of the bearings 3; a mounting ring 5 is fixedly arranged inside the bearings 3, and an extension block 6 extends upward from the top of the mounting ring 5, with a secondary pressure roller 7 connected between the extension blocks 6, meaning the secondary pressure roller 7 is fixedly arranged above the main pressure roller 4; a motor 11 is located behind one of the fixed seats 2, and the output shaft of the motor 11 is connected to the main pressure roller 4, driving the main pressure roller 4 to rotate.

[0025] Driven by the conveyor belt 1, the thermally conductive silicone sheet moves to the left between the main pressure roller 4 and the auxiliary pressure roller 7. The conveyor belt 1 ensures that the thermally conductive silicone sheet enters the calendering area smoothly and continuously, avoiding stretching and deformation of the silicone sheet due to excessive speed or affecting production efficiency due to excessively slow speed. The surface of the main pressure roller 4 is specially treated to have a certain roughness, which increases the friction between it and the thermally conductive silicone sheet, allowing the silicone sheet to be calendered better under the extrusion of the main pressure roller 4. The auxiliary pressure roller 7 is fixedly set above the main pressure roller 4, forming an extrusion channel together with the main pressure roller 4.

[0026] In practical applications, when the thermally conductive silicone sheet enters the extrusion channel between the main pressure roller 4 and the auxiliary pressure roller 7, the main pressure roller 4 starts to rotate under the drive of the motor 11, driving the silicone sheet through the extrusion channel. After being extruded by the main pressure roller 4 and the auxiliary pressure roller 7, the thermally conductive silicone sheet is calendered, and its surface becomes smooth and flat. The calendered silicone sheet continues to move to the left under the drive of the conveyor belt 1, and enters the subsequent cooling and winding stage.

[0027] Example 3

[0028] like Figures 1 to 4 The device shown is a thermally conductive silicone pad calendering apparatus used to clean dust and impurities on the surface of the thermally conductive silicone pad before calendering. A cleaning cylinder 8 is connected between the top and left sides of the conveyor belt 1. The bottom of the cleaning cylinder 8 is provided with a cleaning opening 13, and the rear top side is provided with a fan connection port 14. The user connects the fan to the cleaning cylinder through the connection port, and sucks out the dust that has been swept into the cleaning cylinder 8 through the cleaning opening 13 and moved to the upper space of the cleaning cylinder 8. This can clean the dust and impurities on the surface of the thermally conductive silicone pad, and can also directly discharge the dust and impurities to avoid the dust returning to the surface of the thermally conductive silicone pad after cleaning, which would lead to poor cleaning and calendering quality. A cleaning roller 9 is rotatably connected between the front and rear sides of the cleaning cylinder 8. A belt 10 is connected between the front side of the cleaning roller 9 and the output shaft of the motor 11. When the motor 11 drives the main pressure roller 4 to rotate, it also drives the cleaning roller 9 to rotate through the belt 10, which in turn drives the wave blade 12 cleaning component in the middle of the cleaning roller 9 to rotate. The wave blade 12 is provided with bristles 121 on both sides.

[0029] In practical applications, when the thermally conductive silicone pad moves to the left under the drive of the conveyor belt 1, it passes through the cleaning cylinder 8 area, activating the motor 11. The output shaft of the motor 11 drives the main pressure roller 4 to rotate via the belt 10. The rotation of the main pressure roller 4 drives the cleaning roller 9 to rotate via the belt 10. The rotation of the cleaning roller 9 causes the wave-shaped cleaning component in the middle of the cleaning roller 9 to start rotating. The wave shape design of the wave-shaped cleaning component allows it to generate a certain undulating motion during rotation. This undulating motion can scrape the dust and impurities on the surface of the thermally conductive silicone pad from the pad surface. At the same time, the bristles 121 on both sides of the wave-shaped cleaning component interact with the thermally conductive silicone pad during rotation. The brush bristles 121, with their softness and elasticity, can penetrate deep into the tiny gaps on the surface of the pad, sweeping out the dust and impurities hidden in the gaps. The softness of the brush bristles 121 also avoids scratching or other damage to the surface of the thermally conductive silicone pad. The dust and impurities swept up by the cleaning roller 9 enter the cleaning cylinder 8 through the cleaning opening 13. The fan generates negative pressure at the top of the cleaning cylinder 8, sucking the dust and impurities into the upper space and expelling them from the device through the fan's exhaust port. This effectively prevents dust and impurities from returning to the surface of the thermally conductive silicone pad after cleaning, ensuring the quality of cleaning and calendering.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A thermally conductive silicone pad calendering device, comprising a conveyor belt, with fixed seats symmetrically arranged on the left side of the conveyor belt, bearings on the top of the fixed seats, and main pressure rollers rotatably connected between the bearings, characterized in that... An installation ring is fixedly provided on the inner side of the bearing, and an extension block is provided on the outer side of the installation ring. A secondary pressure roller is connected between the extension blocks. A cleaning cylinder is connected between the top left sides of the conveyor belt. A cleaning roller is rotatably connected between the front and rear sides inside the cleaning cylinder.

2. The heat-conducting silicone gasket calendering device according to claim 1, wherein, A motor is located at the rear of the fixed base on one side. The output shaft of the motor is connected to the main pressure roller. A belt is connected between the front side of the sweeping roller and the output shaft of the motor.

3. The heat-conducting silicone gasket calendering device of claim 1, wherein, The cleaning roller has a wave-shaped blade in the middle, and brush bristles are provided on both sides of the wave-shaped blade.

4. The heat-conducting silicone gasket calendering device of claim 1, wherein, The cleaning cylinder has a cleaning opening at the bottom.

5. The heat-conducting silicone gasket calendering device of claim 4, wherein, The cleaning cylinder has a fan connection port on the rear top side.

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