A kind of glue liquid filtering device for producing heat-conducting silica gel gasket

Abstract

The utility model belongs to the technical field of rubber mat production, specifically relates to a glue liquid filtering device for heat conduction silica gel gasket production, including the shell body, the bottom end of shell body is formed with the discharge gate, the upper side of shell body is installed with the filter assembly, the filter assembly includes W type support, W type support downside is fixed with the filter screen, two filter grooves are formed between filter assembly and shell body, the bottom of filter groove is installed with spiral scraper, one end of spiral scraper is rotatably installed on the unloading assembly, the other end of spiral scraper is transmission connection drive assembly, two filter grooves are all connected with a feeding pipe, two feeding pipes are connected with two ends of three -way valve respectively, the other end of three -way valve is connected with feeding valve. The alternating filtering work of two filter grooves is realized through three -way valve, and the spiral scraper is driven to rotate through the drive assembly while filtering in a filter groove, the foreign matter adhered on the inner wall of another filter groove is cleaned, and the continuity of filtering is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of adhesive pad production technology, specifically relating to an adhesive liquid filtration device for the production of thermally conductive silicone pads. Background Technology

[0002] In the industrial production of thermally conductive silicone pads, the filtration process of the adhesive directly affects the product's thermal conductivity, insulation, and structural stability. The core function of thermally conductive silicone pads is to fill the tiny gaps between heat sources and heat dissipation components in electronic devices. Therefore, the presence of impurities in the adhesive (such as undispersed filler particles, fiber impurities, and curing agent agglomerates) can cause bumps or holes on the pad surface, reducing the continuity of the heat conduction path, decreasing the thermal conductivity, and even causing safety hazards such as partial discharge. Therefore, the industry has increasingly stringent requirements for the accuracy of adhesive filtration, and the filtration process must be continuous and stable to avoid production disruptions due to downtime for cleaning.

[0003] Traditional adhesive filtration devices mostly employ a single-tank structure, whose core drawback is the inability to perform filtration and cleaning simultaneously. When impurities adhere to the filter screen surface to a certain thickness, the filtration resistance increases significantly, causing a decrease in adhesive flow rate. At this point, the system must be shut down to disassemble and clean or replace the filter screen, directly resulting in production loss. Simultaneously, during shutdown, the adhesive is prone to solidification within the pipeline (especially in high-temperature summer environments), forming difficult-to-clean gel clumps, further increasing equipment maintenance costs. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a glue filtration device for the production of thermally conductive silicone pads, which solves the problems of traditional glue filtration devices that cannot achieve simultaneous filtration and cleaning, incomplete cleaning, and easy flow interruption when switching between multiple tanks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a liquid filtration device for producing thermally conductive silicone pads, comprising a housing, a controller mounted on the housing, support legs connected to the side of the housing, a discharge port formed at the bottom of the housing, a filter assembly mounted on the upper side of the housing, the filter assembly comprising a W-shaped bracket, a filter screen fixedly attached to the lower side of the W-shaped bracket, a perforated groove formed on one side of the filter screen on the W-shaped bracket, two filter grooves formed between the filter assembly and the housing, a spiral scraper mounted at the bottom of the filter groove, one end of the spiral scraper rotatably mounted on a discharge assembly, the other end of the spiral scraper being driven by a drive assembly, each of the two filter grooves being connected to a feed pipe, the two feed pipes being respectively connected to both ends of a three-way valve, the other end of the three-way valve being connected to a feed valve.

[0006] The beneficial effects of this utility model are as follows: the three-way valve enables the two filter tanks to work alternately for filtration, and while one filter tank is filtering, the drive assembly drives the spiral scraper to rotate, cleaning the foreign matter adhering to the inner wall of the other filter tank, thus ensuring the continuity of filtration.

[0007] To enable the two spiral scrapers to rotate independently using an electric motor;

[0008] As a further improvement to the above technical solution: the drive assembly includes a motor bracket, which is fixed on the outer casing. A motor is mounted on the motor bracket. The motor drives and connects to the spiral scraper through two sets of chain drive mechanisms. The driving sprocket in the chain drive mechanism is mounted on the output shaft of the motor, and the driven sprocket in the chain drive mechanism is mounted on a one-way bearing. The one-way bearing is mounted on the rotating shaft of the spiral scraper. The spiral scrapers installed in the two filter tanks rotate in opposite directions.

[0009] The beneficial effects of this improvement are: by switching the rotation direction of the control motor, the filter assembly can be cleaned by rotating through two sets of chain drive mechanisms and the spiral scraper driven in one direction by a one-way bearing.

[0010] In order to effectively remove foreign objects from the inner wall of the filter assembly through the spiral scraper;

[0011] As a further improvement to the above technical solution: the bottom of the filter tank is an arc-shaped groove structure, the axis of the spiral scraper is collinear with the axis of the arc-shaped groove on the lower side of the filter tank, and the outer side of the spiral scraper is slidably connected to the inner wall of the filter screen.

[0012] The beneficial effect of this improvement is that when the spiral scraper rotates, it can transport the foreign objects retained inside the filter tank to the unloading assembly.

[0013] To further improve the cleaning effect of the spiral scraper;

[0014] As a further improvement to the above technical solution: the outer surface of the spiral scraper is uniformly coated with bristles.

[0015] The beneficial effect of this improvement is that the bristles attached to the outer side of the spiral scraper can effectively scrub away foreign objects adhering to the inner wall of the filter screen during the rotation of the spiral scraper.

[0016] To facilitate the discharge of foreign objects conveyed by the spiral scraper to the unloading assembly;

[0017] As a further improvement to the above technical solution: the unloading assembly includes a three-way pipe, one horizontal end of which is connected to the filter tank and flush with the arc-shaped inner wall of the filter screen, the other horizontal end of which is blind, and the other vertical end of which is connected to one end of a blind plate via a hinge. The blind plate is connected to the blind plate via a locking assembly, and the lock body and the lock buckle in the locking assembly are respectively fixed to the three-way pipe and the blind plate.

[0018] The beneficial effects of this improvement are: after the adhesive liquid in the filter tank is filtered out, the operator can open the blind plate in the corresponding unloading assembly to release the foreign matter conveyed by the spiral scraper to the unloading assembly.

[0019] In order to effectively drain the filtered adhesive solution;

[0020] As a further improvement to the above technical solution: the bottom end of the outer shell gradually tapers into a square-to-round diameter-changing structure to connect to the discharge port.

[0021] The beneficial effect of this improvement is that the adhesive can flow into the discharge port along the inclined inner wall on the lower side of the outer shell and be effectively discharged.

[0022] To facilitate easy replacement of the filter components;

[0023] As a further improvement to the above technical solution: the top of the W-shaped bracket is bent to both sides, and the bent plate is connected to the top of the outer shell by bolts.

[0024] The beneficial effect of this improvement is that after removing the connecting bolts between the W-shaped bracket and the outer casing, the filter assembly can be easily removed from the outer casing.

[0025] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0027] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0028] Figure 3 This is a cross-sectional view of the present invention;

[0029] Figure 4 This is a schematic diagram of the filter assembly in this utility model;

[0030] Figure 5 This is an enlarged view of A in this utility model;

[0031] In the diagram: 1. Outer shell; 2. Support leg; 3. Filter assembly; 31. W-shaped bracket; 32. Filter screen; 33. Hollowed-out groove; 4. Discharge port; 5. Unloading assembly; 51. T-shaped pipe; 52. Hinge; 53. Blind flange; 54. Locking assembly; 6. Feed pipe; 7. Three-way valve; 8. Feed valve; 9. Controller; 10. Drive assembly; 101. Motor bracket; 102. Motor; 103. Chain drive mechanism; 104. One-way bearing; 11. Spiral scraper; 14. Filter tank. Detailed Implementation

[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0033] Example 1:

[0034] like Figure 1 — Figure 5As shown: A liquid filtration device for producing thermally conductive silicone pads includes a housing 1, a controller 9 mounted on the housing 1, support legs 2 connected to the side of the housing 1, a discharge port 4 formed at the bottom of the housing 1, and a filter assembly 3 mounted on the upper side of the housing 1. The filter assembly 3 includes a W-shaped bracket 31, a filter screen 32 fixedly attached to the lower side of the W-shaped bracket 31, and a perforated groove 33 on one side of the W-shaped bracket 31. Two filter grooves 14 are formed between the filter assembly 3 and the housing 1. A spiral scraper 11 is mounted at the bottom of the filter groove 14. One end of the spiral scraper 11 is rotatably mounted on a discharge assembly 5, and the other end of the spiral scraper 11 is drive-connected to a drive assembly 10. Each filter tank 14 is connected to a feed pipe 6, and the two feed pipes 6 are respectively connected to the two ends of a three-way valve 7. The other end of the three-way valve 7 is connected to a feed valve 8. The three-way valve 7 enables the two filter tanks 14 to filter alternately. While one filter tank 14 is filtering, the drive assembly 10 drives the spiral scraper 11 to rotate, cleaning the foreign matter adhering to the inner wall of the other filter tank 14, ensuring the continuity of filtration. The drive assembly 10 includes a motor bracket 101, which is fixed to the outer shell 1. A motor 102 is mounted on the motor bracket 101. The motor 102 drives the spiral scraper 11 through two sets of chain drive mechanisms 103. The drive sprocket in the chain drive mechanism 103 is mounted on the motor. On the output shaft of 102, the driven sprocket in the chain drive mechanism 103 is mounted on a one-way bearing 104. The one-way bearing 104 is mounted on the rotating shaft of the spiral scraper 11. The spiral scrapers 11 installed in the two filter tanks 14 rotate in opposite directions. By switching the rotation direction of the control motor 102, the spiral scrapers 11 on one side can be rotated by the two sets of chain drive mechanisms 103 and the one-way bearing 104 to perform the cleaning work of the filter assembly 3. The bottom of the filter tank 14 is an arc-shaped groove structure. The axis of the spiral scraper 11 is collinear with the axis of the arc-shaped groove on the lower side of the filter tank 14. The outer side of the spiral scraper 11 is slidably connected to the inner wall of the filter screen 32. When the spiral scraper 11 rotates, it can filter out foreign objects trapped inside the filter tank 14. The material is conveyed to the unloading assembly 5. The outer surface of the spiral scraper 11 is evenly coated with bristles. During the rotation of the spiral scraper 11, the bristles effectively scrub away foreign matter adhering to the inner wall of the filter screen 32. The unloading assembly 5 includes a three-way pipe 51. One horizontal end of the three-way pipe 51 connects to the filter tank 14 and is flush with the arc-shaped inner wall of the filter screen 32. The other horizontal end of the three-way pipe 51 is closed. The other vertical end of the three-way pipe 51 is vertically downward and rotatably connected to one end of a blind plate 53 via a hinge 52. The blind plate 53 is connected via a locking assembly 54. The lock body and the lock buckle in the locking assembly 54 are respectively fixed to the three-way pipe 51 and the blind plate 53. After the adhesive liquid in the filter tank 14 is filtered out...The operator can open the blind flange 53 in the corresponding unloading assembly 5 to release the foreign matter conveyed to the unloading assembly 5 by the spiral scraper 11. The bottom end of the outer shell 1 tapers to a square-to-round diameter changing structure, connecting to the discharge port 4. The adhesive can flow into the discharge port 4 along the inclined inner wall of the lower side of the outer shell 1 for effective discharge. The top of the W-shaped bracket 31 bends to both sides, and the bending plate is connected to the top of the outer shell 1 by bolts. After removing the connecting bolts between the W-shaped bracket 31 and the outer shell 1, the filter assembly 3 can be easily removed from the outer shell 1.

[0035] The working principle of this technical solution is as follows: Connect the feed valve 8 to the bottom of the adhesive storage tank, open the feed valve 8, adjust the three-way valve 7, so that the adhesive enters the corresponding filter tank 14 through one of the feed pipes 6. Under the action of gravity, the adhesive passes through the filter screen 32, and impurities are intercepted on the surface of the filter screen 32. The filtered adhesive flows into the outlet 4 along the inclined inner wall at the bottom of the outer shell 1. Manually switch the three-way valve 7 so that the adhesive flows into another filter tank 14 for further filtration. At the same time, start the motor 102. When the motor 102 rotates forward, it drives the spiral scraper in the filter tank 14 that is not currently being filtered through the chain drive mechanism 103 and the one-way bearing 104. When the spiral scraper 11 rotates, the bristles on the outer side of the spiral scraper 11 scrub the inner wall of the filter screen 32, pushing the impurities along the spiral direction to the unloading assembly 5. When the motor 102 reverses, it switches to drive the spiral scraper 11 in another filter tank 14, realizing the alternating cleaning of the two filter tanks 14. When the impurities in the unloading assembly 5 accumulate to a certain amount, the feed pipe 6 of the corresponding filter tank 14 is closed, stopping the filtration and cleaning operation of that tank. The locking assembly 54 is opened, and the blind plate 53 is flipped downward along the hinge 52, allowing the impurities to be discharged under gravity. After the impurities are discharged, the blind plate 53 is closed, and the locking assembly 54 is fastened to ensure good sealing.

[0036] It should be noted that, in this document, 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. Specific examples have been used in this document to illustrate the principles and implementation methods of the invention; these examples are merely for the purpose of helping to understand the method and core ideas of the invention. The above descriptions are only preferred embodiments of the invention. It should be pointed out that, due to the limitations of written expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or variations can be made without departing from the principles of the invention, and the above technical features can be combined in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this invention.

Claims

1. A liquid filtration device for producing thermally conductive silicone pads, characterized in that: The system includes an outer shell (1), on which a controller (9) is mounted. Support legs (2) are connected to the side of the outer shell (1). A discharge port (4) is formed at the bottom of the outer shell (1). A filter assembly (3) is mounted on the upper side of the outer shell (1). The filter assembly (3) includes a W-shaped bracket (31). A filter screen (32) is fixedly attached to the lower side of the W-shaped bracket (31). A perforated groove (33) is formed on one side of the W-shaped bracket (31) of the filter screen (32). Two filter tanks (14) are formed between the component (3) and the outer shell (1). A spiral scraper (11) is installed at the bottom of the filter tank (14). One end of the spiral scraper (11) is rotatably mounted on the unloading component (5). The other end of the spiral scraper (11) is connected to the drive component (10). Both filter tanks (14) are connected to a feed pipe (6). The two feed pipes (6) are respectively connected to the two ends of a three-way valve (7). The other end of the three-way valve (7) is connected to a feed valve (8).

2. The adhesive filtration device for producing thermally conductive silicone pads according to claim 1, characterized in that: The drive assembly (10) includes a motor bracket (101) fixed on the outer casing (1). A motor (102) is mounted on the motor bracket (101). The motor (102) drives the spiral scraper (11) through two sets of chain drive mechanisms (103). The driving sprocket in the chain drive mechanism (103) is mounted on the output shaft of the motor (102). The driven sprocket in the chain drive mechanism (103) is mounted on a one-way bearing (104). The one-way bearing (104) is mounted on the rotating shaft of the spiral scraper (11). The spiral scrapers (11) installed in the two filter tanks (14) rotate in opposite directions.

3. The adhesive filtration device for producing thermally conductive silicone pads according to claim 1, characterized in that: The bottom of the filter tank (14) is an arc-shaped groove structure. The axis of the spiral scraper (11) is collinear with the axis of the arc-shaped groove on the lower side of the filter tank (14). The outer side of the spiral scraper (11) is slidably connected to the inner wall of the filter screen (32).

4. The adhesive filtration device for producing thermally conductive silicone pads according to claim 1, characterized in that: The outer surface of the spiral scraper (11) is uniformly covered with bristles.

5. The adhesive filtration device for producing thermally conductive silicone pads according to claim 1, characterized in that: The unloading assembly (5) includes a three-way pipe (51). One horizontal end of the three-way pipe (51) is connected to the filter tank (14) and is flush with the arc-shaped inner wall of the filter screen (32). The other horizontal end of the three-way pipe (51) is closed. The other vertical end of the three-way pipe (51) is vertically downward and is rotatably connected to one end of the blind plate (53) through a hinge (52). The blind plate (53) is connected to the blind plate (53) through a locking assembly (54). The lock body and the lock buckle in the locking assembly (54) are respectively fixed on the three-way pipe (51) and the blind plate (53).

6. The adhesive filtration device for producing thermally conductive silicone pads according to claim 1, characterized in that: The bottom of the outer shell (1) gradually tapers into a square-to-round diameter-changing structure to connect to the discharge port (4).

7. The adhesive filtration device for producing thermally conductive silicone pads according to claim 1, characterized in that: The top of the W-shaped bracket (31) is bent to both sides, and the bent plate is connected to the top of the outer shell (1) by bolts.

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