Film coating device for heat-conducting silica gel product

Abstract

The utility model discloses a heat-conducting silica gel product laminating device, which relates to the technical field of heat-conducting silica gel production and comprises a machine body, a laminating mechanism mounted in the machine body and a pressing mechanism mounted in the machine body. The film covering mechanism comprises a bottom layer material roller and an upper layer material roller which are rotationally arranged at the bottom and the top of one end of the machine body and used for feeding protective films into the bottom and the top of the heat conduction silica gel respectively, and a plurality of conveying rollers rotationally arranged in the machine body and used for bearing the heat conduction silica gel at the top of the bottom layer protective film; and the film laminating roller is rotationally arranged at one end of the machine body and is used for laminating the upper-layer protective film on the heat-conducting silica gel. According to the utility model, a bottom-layer protective film unwound by the bottom-layer material roller can be supported and guided through the plurality of conveying rollers, heat-conducting silica gel products can be conveyed to the top of the bottom-layer protective film one by one in batches by the conveying belt, and an upper-layer protective film unwound by the upper-layer material roller can be coated on heat-conducting silica gel by the film coating roller; therefore, the heat-conducting silica gel product is subjected to rapid batch production line type film coating, and the film coating efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of thermally conductive silicone production technology, and in particular to a coating device for thermally conductive silicone products. Background Technology

[0002] Thermally conductive silicone is a thermally conductive medium material synthesized through a special process using silicone as the base material and adding various auxiliary materials such as metal oxides. It is mainly used to fill gaps, opening up thermal channels between heat-generating and heat-dissipating components, effectively improving heat transfer efficiency. It also serves as insulation, shock absorption, and sealing. During the production and processing of thermally conductive silicone, a transparent protective film is applied to the product using a coating device. Its main function is to protect the silicone sheets from contamination and damage during production, transportation, and storage. This film effectively prevents dust, moisture, and other impurities from adhering to the silicone sheet, thereby affecting its thermal conductivity.

[0003] Patent CN208277430U discloses "a special coating machine for thermally conductive silicone products, wherein the first and second material strip frames of the coating machine are respectively fixedly installed on the work platform, and the first and second material strip frames are arranged in front of and behind each other. This utility model adopts a special structure design for the special coating machine, which can play an auxiliary role in covering the surface of thermally conductive silicone products with a protective film, making the coating operation faster and more convenient, and effectively ensuring product quality."

[0004] Regarding the aforementioned technologies, the inventors believe that during the lamination process, the thermally conductive silicone product to be laminated needs to be placed on the bottom protective film, and then the top protective film is manually applied to the thermally conductive silicone product. This process requires workers to place the thermally conductive silicone into the lamination area and remove it after lamination, resulting in low efficiency and failing to meet the demand for rapid batch lamination of thermally conductive silicone products. Therefore, improvements are needed. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a coating device for thermally conductive silicone products. The specific technical solution is as follows:

[0006] A thermally conductive silicone product coating device includes a machine body, a coating mechanism installed inside the machine body, and a pressing mechanism installed inside the machine body. The coating mechanism includes a bottom material roller and an upper material roller rotatably disposed at the bottom and top of one end of the machine body for feeding a protective film into the bottom and top of the thermally conductive silicone, respectively; a plurality of conveying rollers rotatably disposed inside the machine body for carrying the thermally conductive silicone on top of the bottom protective film; and a coating roller rotatably disposed at one end of the machine body for coating the upper protective film onto the thermally conductive silicone. One end of the machine body is provided with a conveyor belt for feeding thermally conductive silicone in batches to the top of the bottom protective film.

[0007] The pressing mechanism includes a pressing roller rotatably mounted inside the machine body for extruding the thermally conductive silicone after coating, and several return springs mounted on the top of the machine body for pressing the pressing roller into the thermally conductive silicone. The top of the machine body is provided with an adjustment mechanism for adjusting the downward pressure of the pressing roller.

[0008] By adopting the above technical solution, several conveyor rollers can support and guide the bottom protective film unwound from the bottom material roller, the conveyor belt can feed the thermally conductive silicone products one by one into the top of the bottom protective film, and the coating roller can coat the upper protective film unwound from the upper material roller onto the thermally conductive silicone, thereby enabling rapid batch production line coating of thermally conductive silicone products and improving coating efficiency.

[0009] Optionally, the top of the machine body is movably provided with a movable plate, and a number of the reset springs are fixedly connected to the bottom of the movable plate. The outer wall of the pressing roller is rotatably provided with a rotating frame, and the top of the rotating frame is provided with a number of slots. The bottom end of the reset spring is fixedly provided with a connecting plate, and the bottom of the connecting plate is fixedly provided with a metal spring sheet. Two sets of locking blocks that are engaged and fastened in the slots are fixed on both sides of the bottom of the metal spring sheet.

[0010] By adopting the above technical solution, the pressure roller can be pressed onto the coated thermally conductive silicone product by the elastic force of the return spring. This allows the pressure roller to reduce air bubbles between the thermally conductive silicone and the protective film by squeezing the moving thermally conductive silicone, thereby improving product quality.

[0011] Optionally, the adjustment mechanism includes a fixed plate fixedly disposed on the top side of the machine body, and an adjustment bolt threaded in the fixed plate. The bottom end of the adjustment bolt is fixedly provided with a rotating block, which is rotatably connected to the movable plate.

[0012] By adopting the above technical solution, the distance between the movable plate and the thermally conductive silicone can be adjusted by rotating the adjusting bolt, thereby adjusting the downward pressure of the reset spring on the pressing roller, avoiding excessive downward pressure that would cause severe deformation of the thermally conductive silicone, and insufficient downward pressure that would result in poor foaming effect.

[0013] Optionally, two sets of limiting rods are fixedly provided on both sides of the top of the rotating frame, and the top of the limiting rods passes through the movable plate and the fixed plate.

[0014] By adopting the above technical solution, the limiting rod can connect the rotating frame, the movable plate, and the fixed plate, and limit the movable plate and the rotating frame, so that the movable plate and the rotating frame can only move up and down.

[0015] In summary, this utility model has at least one of the following beneficial effects:

[0016] 1. Several conveyor rollers can support and guide the bottom protective film unwound from the bottom material roller. The conveyor belt can feed the thermally conductive silicone products one by one to the top of the bottom protective film. The coating roller can coat the upper protective film unwound from the upper material roller onto the thermally conductive silicone, thereby enabling rapid batch production line coating of thermally conductive silicone products and improving coating efficiency.

[0017] 2. The spring force of the return spring presses the pressing roller onto the coated thermally conductive silicone product, thereby reducing air bubbles between the thermally conductive silicone and the protective film by squeezing the moving thermally conductive silicone, thus improving product quality. By rotating the adjusting bolt, the distance between the movable plate and the thermally conductive silicone can be adjusted, thereby adjusting the downward pressure of the return spring on the pressing roller, avoiding excessive downward pressure that would cause severe deformation of the thermally conductive silicone, and insufficient downward pressure that would result in poor bubble extrusion. By pressing the metal spring, the pressing roller and the rotating frame can be quickly disassembled and assembled, facilitating maintenance and replacement of the pressing roller and the rotating frame by the staff. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure and internal layout of this utility model;

[0020] Figure 3 This is a side view connecting the internal structure of the rotating frame, fixing plate, and adjusting bolts of this utility model;

[0021] Figure 4 This is the utility model Figure 3 Enlarged view of the A-structure.

[0022] Explanation of reference numerals in the attached drawings: 1. Machine body; 11. Bottom material roller; 12. Upper material roller; 13. Conveyor roller; 14. Coating roller; 15. Conveyor belt; 2. Movable plate; 21. Return spring; 22. Rotating frame; 23. Pressing roller; 24. Slot; 25. Connecting plate; 26. Metal spring; 27. Locking block; 3. Fixed plate; 31. Adjusting bolt; 32. Rotating block; 4. Limiting rod. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0024] This utility model discloses a coating device for thermally conductive silicone products, as shown in the following embodiment. Figure 1-2 It includes a body 1, a film coating mechanism and a pressing mechanism. The body 1 can be U-shaped and can support and limit the components such as the film coating mechanism.

[0025] Reference Figure 1-2The coating mechanism includes a bottom roller 11 and an upper roller 12 rotatably mounted at the bottom and top of one end of the machine body 1, respectively feeding the thermally conductive silicone into the bottom and top of the protective film; several conveying rollers 13 rotatably mounted inside the machine body 1 to support the thermally conductive silicone on top of the bottom protective film; and a coating roller 14 rotatably mounted at one end of the machine body 1 to coat the upper protective film onto the thermally conductive silicone. The bottom roller 11 can unwind the bottom protective film, and the upper roller 12 can unwind the upper protective film. One end of the machine body 1 can utilize external conveying equipment to pull and convey the coated thermally conductive silicone product for subsequent slitting. The existing slitting process and equipment for coated thermally conductive silicone and other products are publicly available technologies and will not be described in detail here.

[0026] Reference Figure 1-2 The machine body 1 has a conveyor belt 15 at one end for feeding thermally conductive silicone to the top of the bottom protective film in batches. The conveyor belt 15 can feed the produced thermally conductive silicone to the top of the bottom protective film one by one. Both the upper and lower protective films are coated with adhesive so that they can adhere to the thermally conductive silicone more quickly.

[0027] Reference Figure 1-2 Several conveyor rollers 13 can support and guide the bottom protective film unwound from the bottom material roller 11. The conveyor belt 15 can feed the thermally conductive silicone products one by one onto the top of the bottom protective film. The coating roller 14 can coat the upper protective film unwound from the upper material roller 12 onto the thermally conductive silicone, thereby enabling rapid batch production line coating of thermally conductive silicone products, improving coating efficiency. Furthermore, by changing the coating roller 14 of different specifications and sizes, the coating device can coat thermally conductive silicone products of different heights and sizes.

[0028] Reference Figure 2-3 The pressing mechanism includes a pressing roller 23 rotatably disposed inside the machine body 1 for pressing the coated thermally conductive silicone, and a plurality of return springs 21 disposed on the top of the machine body 1 for pressing the pressing roller 23 onto the thermally conductive silicone. Through the elastic force of the return springs 21, the pressing roller 23 can be pressed onto the coated thermally conductive silicone product, thereby reducing air bubbles between the thermally conductive silicone and the protective film by pressing the moving thermally conductive silicone, thus improving product quality.

[0029] Reference Figure 2-4 The top of the body 1 is movably provided with a movable plate 2, and several return springs 21 are fixedly connected to the bottom of the movable plate 2. The movable plate 2 can support and fix one end of the return springs 21.

[0030] Reference Figure 2-4 The outer wall of the pressing roller 23 is provided with a rotating frame 22. The top of the rotating frame 22 is provided with several slots 24. The rotating frame 22 can support the pressing roller 23, and the pressing roller 23 can rotate within the rotating frame 22.

[0031] Reference Figure 2-4 A connecting plate 25 is fixedly provided at the bottom of the return spring 21. A metal spring piece 26 is fixedly provided at the bottom of the connecting plate 25. Two sets of locking blocks 27 are fixedly provided on both sides of the bottom of the metal spring piece 26 and are engaged in the locking slot 24. The connecting plate 25 can connect the return spring 21 and the metal spring piece 26. The metal spring piece 26 can be an inverted U-shape. By squeezing the metal spring piece 26 by hand, the locking blocks 27 at both ends of the metal spring piece 26 can be moved. After moving, the locking blocks 27 can be disengaged from the locking position in the locking slot 24, which makes it easy for the staff to pull the locking blocks 27 out of the locking slot 24 and quickly disassemble the rotating frame 22 and the pressing roller 23 as a whole.

[0032] Furthermore, after the staff squeezes the metal spring 26 by hand to move the two sets of locking blocks 27 closer together, they insert the locking blocks 27 into the locking slots 24. At this time, the metal spring 26 is released, and the metal spring 26 will push the locking blocks 27 into the locking position in the locking slots 24 under the elastic force, thereby quickly connecting the rotating frame 22 and the return spring 21 and other components, so as to quickly install the rotating frame 22 and the pressing roller 23 as a whole. It is easy to disassemble and assemble, and convenient for subsequent maintenance and replacement. The metal spring 26 is an existing thickened and thickened metal spring.

[0033] Reference Figure 2-4 The top of the machine body 1 is provided with an adjustment mechanism for adjusting the pressure of the pressing roller 23. The adjustment mechanism includes a fixed plate 3 fixedly installed on the top inner side of the machine body 1 and an adjustment bolt 31 threaded in the fixed plate 3. A rotating block 32 is fixedly installed at the bottom end of the adjustment bolt 31. The rotating block 32 is rotatably connected in the movable plate 2. The rotating block 32 is cylindrical in shape. The rotating block 32 can connect the adjustment bolt 31 and the movable plate 2, so that the adjustment bolt 31 can rotate on the movable plate 2 without disengaging.

[0034] By rotating the adjusting bolt 31 and connecting it with the rotating block 32, the movable plate 2 can be raised and lowered to adjust the distance between the movable plate 2 and the thermally conductive silicone product. Since the height of the thermally conductive silicone product is basically fixed, the return spring 21 will be compressed to a greater extent after the movable plate 2 moves down, thus increasing the downward pressure of the return spring 21 on the pressure roller 23. Conversely, the return spring 21 will be compressed to a lesser extent after the movable plate 2 moves up, thus decreasing the downward pressure of the return spring 21 on the pressure roller 23. This adjusts the downward pressure of the return spring 21 on the pressure roller 23, preventing excessive downward pressure from causing severe deformation of the thermally conductive silicone or insufficient downward pressure from resulting in poor foaming effect.

[0035] Reference Figure 3Two sets of limiting rods 4 are fixed on both sides of the top of the rotating frame 22. The top of the limiting rods 4 passes through the movable plate 2 and the fixed plate 3. The limiting rods 4 can connect the rotating frame 22, the movable plate 2 and the fixed plate 3, and limit the movable plate 2 and the rotating frame 22, so that the movable plate 2 and the rotating frame 22 can only move up and down.

[0036] The implementation principle of the thermally conductive silicone product coating device in this embodiment of the utility model is as follows:

[0037] In use, several conveyor rollers 13 can support and guide the bottom protective film unwound from the bottom material roller 11, the conveyor belt 15 can feed the thermally conductive silicone products one by one into the top of the bottom protective film, and the coating roller 14 can coat the upper protective film unwound from the upper material roller 12 onto the thermally conductive silicone, thereby enabling rapid batch production line coating of thermally conductive silicone products and improving coating efficiency.

[0038] At the same time, the spring force of the return spring 21 can press the pressing roller 23 onto the thermally conductive silicone product after film coating, so that the pressing roller 23 can reduce the air bubbles between the thermally conductive silicone and the protective film by squeezing the moving thermally conductive silicone, thereby improving product quality.

[0039] Furthermore, the operator can rotate the adjusting bolt 31 in conjunction with the connecting block 32 to drive the movable plate 2 to rise and fall, thereby adjusting the distance between the movable plate 2 and the thermal conductive silicone product, and thus adjusting the downward pressure of the reset spring 21 on the pressing roller 23, so as to avoid excessive downward pressure causing severe deformation of the thermal conductive silicone, or insufficient downward pressure resulting in poor foaming effect.

[0040] The thermal conductive silicone product coating device, with its specially designed structure, can assist in covering the surface of thermal conductive silicone products with a protective film, making the coating operation faster and more convenient, and effectively ensuring product quality.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thermally conductive silicone product coating device, comprising a body (1), a coating mechanism installed within the body (1), and a pressing mechanism installed within the body (1), characterized in that: The coating mechanism includes a bottom material roller (11) and an upper material roller (12) rotatably disposed at the bottom and top of one end of the machine body (1) for feeding the thermally conductive silicone into the bottom and top of the protective film respectively; a plurality of conveying rollers (13) rotatably disposed inside the machine body (1) for carrying the thermally conductive silicone on the top of the bottom protective film; and a coating roller (14) rotatably disposed at one end of the machine body (1) for coating the upper protective film onto the thermally conductive silicone. One end of the machine body (1) is provided with a conveyor belt (15) for feeding the thermally conductive silicone in batches to the top of the bottom protective film. The pressing mechanism includes a pressing roller (23) rotatably disposed inside the machine body (1) for pressing the thermally conductive silicone after coating, and a plurality of return springs (21) disposed on the top of the machine body (1) for pressing the pressing roller (23) against the thermally conductive silicone. The top of the machine body (1) is provided with an adjustment mechanism for adjusting the pressure of the pressing roller (23).

2. The thermally conductive silicone product coating device according to claim 1, characterized in that: The top of the body (1) is movably provided with a movable plate (2), and several of the reset springs (21) are fixedly connected to the bottom of the movable plate (2).

3. The thermally conductive silicone product coating device according to claim 2, characterized in that: The outer wall of the pressing roller (23) is provided with a rotating frame (22), and the top of the rotating frame (22) is provided with several slots (24).

4. The thermally conductive silicone product coating device according to claim 3, characterized in that: The bottom end of the reset spring (21) is fixedly provided with a connecting plate (25), and the bottom of the connecting plate (25) is fixedly provided with a metal spring sheet (26).

5. The thermally conductive silicone product coating device according to claim 4, characterized in that: The metal spring (26) has two sets of locking blocks (27) fixed on both sides of its bottom, which are engaged with the locking slot (24).

6. The thermally conductive silicone product coating device according to claim 5, characterized in that: The adjustment mechanism includes a fixed plate (3) fixedly installed on the top of the inner side of the body (1) and an adjustment bolt (31) threaded in the fixed plate (3).

7. The thermally conductive silicone product coating device according to claim 6, characterized in that: The bottom end of the adjusting bolt (31) is fixed with a rotating block (32), which is rotatably connected to the movable plate (2).

8. The thermally conductive silicone product coating device according to claim 7, characterized in that: Two sets of limiting rods (4) are fixed on both sides of the top of the rotating frame (22), and the top of the limiting rods (4) passes through the movable plate (2) and the fixed plate (3).

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