Liquid silicone filter

Abstract

The utility model discloses a kind of liquid silicone filters, the utility model relates to liquid silicone filter technical field, including glue inlet subassembly, the glue inlet subassembly bottom is fixedly installed with glue outlet subassembly, the glue outlet subassembly bottom is fixedly installed with constant-temperature component, the glue outlet subassembly includes glue outlet seat, filter cavity is opened in the inside of glue outlet seat, the filter cavity inside is fixedly installed with filter component, the filter component includes four fixed rings, filter screen is equipped between the four fixed rings, first fixed ring is fixedly installed with the outside of filter screen, and second fixed ring is fixedly installed with the inside middle part of filter screen, fixed block is equipped in the inside of fixed ring, connecting sheet is fixedly installed with the outside of fixed block, and connecting sheet other end is fixedly connected with fixed ring;The utility model, can carry out graded filtration to liquid silicone, effectively avoid the particle impurity in liquid silicone to block injection molding device's nozzle, with higher practical value.

Description

Technical Field

[0001] This utility model relates to the field of liquid silicone filter technology, specifically a liquid silicone filter. Background Technology

[0002] A liquid silicone filter is a device for filtering impurities from liquid silicone. In the production of liquid silicone products (such as nipples, medical catheters, electronic seals, etc.), in order to ensure product quality, it is necessary to filter the liquid silicone before injection molding to remove impurities, gel particles, or undispersed fillers.

[0003] Based on the above, the following problems were found: In the current liquid silicone injection molding production, impurities are often found in the product, nozzle blockage, and abnormal pressure in the silicone feeding system, which affects the service life of the seals and needle valve system. In addition, some impurities injected into the mold will affect the product quality, increase unnecessary production costs, and make it inconvenient to use.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a liquid silicone filter in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a liquid silica gel filter to solve the problems mentioned in the background art.

[0006] A liquid silicone filter includes an inlet assembly, an outlet assembly fixedly mounted at the bottom of the inlet assembly, a temperature control assembly fixedly mounted at the bottom of the outlet assembly, an outlet seat, a filter chamber formed inside the outlet seat, a filter assembly fixedly mounted inside the filter chamber, and four fixing rings. A filter screen is provided between the four fixing rings. A first fixing ring is fixedly mounted on the outer side of the filter screen, and a second fixing ring is fixedly mounted on the middle of the inner side of the filter screen. A fixing block is provided inside the fixing ring, and a connecting piece is fixedly mounted on the outer side of the fixing block. The other end of the connecting piece is fixedly connected to the fixing ring. A first fixing groove is formed at the bottom of the top three fixing rings and at the top of the bottom three fixing rings, and the first fixing groove is located outside the first fixing ring. A second fixing groove is formed at the bottom of the top three fixing blocks and at the top of the bottom three fixing blocks, and the second fixing groove is located outside the second fixing ring.

[0007] By adopting the above technical solution, the glue inlet assembly facilitates the guidance of liquid silica gel into the filter chamber for filtration. The glue outlet assembly facilitates the filtration of the liquid silica gel by the filter assembly and guides the filtered liquid silica gel out. The thermostatic assembly facilitates the control of the temperature inside the filter chamber, preventing the liquid silica gel from losing fluidity due to temperature drop. The four fixing rings facilitate the fixation of the three filter screens between the four fixing rings, allowing the three filter screens to perform graded filtration of the hydraulic silica gel and intercept particulate impurities in the liquid silica gel. The connecting piece facilitates the fixation of the fixing rings and fixing blocks, forming a channel for the liquid silica gel to flow and filter. The first and second fixing rings facilitate the formation of a support frame, allowing the fixing rings and fixing blocks to fix the filter screens and preventing deformation of the filter screens under the impact of the liquid silica gel.

[0008] Furthermore, each of the top three fixing blocks has a threaded groove at the bottom center, and each of the bottom three fixing blocks has a threaded block fixedly installed at the top center, with the threaded block being threadedly connected to the threaded groove.

[0009] By adopting the above technical solution, the threaded blocks and threaded grooves facilitate the fixed connection of the four fixing blocks, thereby fixing the three filter screens with the four fixing blocks and four fixing rings, which makes it convenient for the filter screens to filter liquid silica gel.

[0010] Furthermore, a fourth sealing ring is fixedly installed at the top of the top fixing ring and the bottom of the bottom fixing ring, with the outer side of the fourth sealing ring fitting against the inner side of the filter chamber.

[0011] By adopting the above technical solution and setting the fourth sealing ring, it is easy to seal both ends of the filter assembly with the inside of the filter chamber, so that the liquid silica gel can only flow from the inside of the filter assembly, thereby filtering out particulate impurities inside the liquid silica gel.

[0012] Furthermore, the glue injection assembly includes a glue injection seat, with a glue injection port at the center of the top of the glue injection seat and a distribution cavity at the center of the bottom of the glue injection seat.

[0013] By adopting the above technical solution, the setting of the glue inlet and distribution cavity facilitates the connection of the glue inlet to the external feeding component, allowing the molten liquid silicone to be introduced into the device for filtration.

[0014] Furthermore, a sensor mounting port is provided on one side of the glue inlet seat, and a through hole is provided on the outer side of the glue inlet seat, with a first fixing screw inserted inside the through hole.

[0015] By adopting the above technical solution, the sensor mounting port and the first fixing screw facilitate the fixed installation of the external pressure sensor in the sensor mounting port, making it convenient to monitor the internal pressure of the distribution chamber and thus evaluate the flowability of the filter screen. The first fixing screw facilitates the fixed connection between the glue inlet assembly and the glue outlet assembly.

[0016] Furthermore, the glue dispensing seat has a glue outlet at the center of its bottom end, a first sealing ring is fixedly installed on the top of the glue dispensing seat, and a second sealing ring and a third sealing ring are fixedly installed on the bottom of the glue dispensing seat.

[0017] By adopting the above technical solution, the setting of the dispensing port facilitates the flow of filtered liquid silicone into the external injection molding device. The first sealing ring, the second sealing ring, and the third sealing ring are used to improve the sealing performance between the dispensing component, the injection component, and the temperature control component, and to prevent leakage.

[0018] Furthermore, screw holes are provided on the outer sides of both the top and bottom of the glue dispensing seat, and the screw hole at the top of the glue dispensing seat is threadedly connected to the first fixing screw.

[0019] By adopting the above technical solution, the glue inlet assembly and the glue outlet assembly are securely fixed by connecting the screw hole at the top of the glue outlet seat with the first fixing screw.

[0020] Furthermore, the constant temperature component includes a circulation cover, the outer side of the top of the circulation cover is provided with a fixing ear, a second fixing screw is inserted through the middle of the fixing ear, and the second fixing screw is threadedly connected to the screw hole at the bottom of the glue outlet.

[0021] By adopting the above technical solution and setting the second fixing screw, it is easy to fix the constant temperature component and the dispensing component, so that the circulation cover and the bottom of the dispensing seat form a circulation cavity, which facilitates the flow of the heat transfer medium inside.

[0022] Furthermore, the circulation cover has an adhesive outlet in the middle and constant temperature medium interfaces at both ends.

[0023] By adopting the above technical solution, the setting of the dispensing hole and the constant temperature medium interface facilitates the dispensing port to pass through the dispensing hole, and the constant temperature medium interface facilitates the connection of external heat-conducting medium, so that the heat-conducting medium flows inside the circulation chamber, realizing the circulation and temperature control of the filter chamber, thereby keeping the liquid silica gel at a temperature with high fluidity, which facilitates the flow and filtration of liquid silica gel.

[0024] Furthermore, a first sealing groove is provided at the center of the top of the circulation cover, the first sealing groove is located outside the second sealing ring, a second sealing groove is provided on the outer side of the top of the circulation cover, and the second sealing groove is located outside the third sealing ring.

[0025] By adopting the above technical solution, the setting of the second sealing groove and the first sealing groove facilitates the limiting and fixing of the second sealing ring and the third sealing ring, improves the sealing performance between the circulation cover and the dispensing seat, and avoids leakage of the heat transfer medium.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows: The infeed assembly facilitates the guidance of liquid silicone into the filter chamber for filtration; the outlet assembly facilitates the filtration of the liquid silicone and guides the filtered liquid silicone out; the thermostatic assembly facilitates temperature control within the filter chamber, preventing a decrease in the fluidity of the liquid silicone due to temperature drop; the four fixing rings facilitate the fixation of the three filter screens between them, allowing for graded filtration of the hydraulic silicone and intercepting particulate impurities; the connecting piece facilitates the fixation of the fixing rings and blocks, creating a channel for the liquid silicone to flow and filter; and the first and second fixing rings form a support frame, facilitating the fixing rings and blocks to fix the filter screens and preventing deformation from the impact of the liquid silicone. This utility model can perform graded filtration of liquid silicone, effectively preventing particulate impurities in the liquid silicone from clogging the injection nozzle of the molding device, and has high practical value. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of a liquid silica gel filter according to the present invention;

[0028] Figure 2 This is an exploded view of a liquid silica gel filter according to the present invention;

[0029] Figure 3 This is an exploded view of the glue dispensing component of this utility model;

[0030] Figure 4 This is an exploded view of the filter assembly of this utility model;

[0031] Figure 5 This is a three-dimensional structural diagram of the fixing block of this utility model;

[0032] Figure 6 This is an exploded view of the glue injection assembly of this utility model;

[0033] Figure 7 This is an exploded view of the thermostatic component of this utility model.

[0034] In the diagram: 1. Glue inlet assembly; 11. Glue inlet seat; 12. Glue inlet; 13. Distribution chamber; 14. Sensor mounting port; 15. Through hole; 16. First fixing screw; 2. Glue outlet assembly; 21. Glue outlet seat; 22. Filter chamber; 23. Glue outlet; 24. Screw hole; 25. First sealing ring; 26. Second sealing ring; 27. Third sealing ring; 3. Thermostatic assembly; 31. Circulation cover; 32. Fixing ear; 33. Second fixing screw; 34. Glue outlet hole; 35. First sealing groove; 36. Second sealing groove; 37. Thermostatic medium interface; 4. Filter assembly; 41. Fixing ring; 42. Filter screen; 43. First fixing ring; 44. Second fixing ring; 45. Fourth sealing ring; 46. Fixing block; 47. Connecting piece; 48. Threaded groove; 49. Second fixing groove; 410. First fixing groove; 411. Threaded block. Detailed Implementation

[0035] 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.

[0036] Please see Figures 1-7This utility model provides a technical solution: a liquid silica gel filter, including a glue inlet assembly 1, which facilitates the guidance of liquid silica gel into the filter chamber 22 for filtration. A glue outlet assembly 2 is fixedly installed at the bottom of the glue inlet assembly 1, which facilitates the inclusion of a filter assembly 4 to filter the liquid silica gel and guides the filtered liquid silica gel out. A thermostatic assembly 3 is fixedly installed at the bottom of the glue outlet assembly 2, which facilitates the control of the internal temperature of the filter chamber 22, preventing the liquid silica gel from decreasing in flowability due to temperature drop. The glue outlet assembly 2 includes a glue outlet seat 21, with a filter chamber 22 formed inside the glue outlet seat 21. A filter assembly 4 is fixedly installed inside the filter chamber 22, and the filter assembly 4 includes four fixing rings 41. The four fixing rings 41 facilitate the fixing of three filter screens 42 between the four fixing rings 41, allowing the three filter screens 42 to perform graded filtration of the liquid silica gel and intercept particulate impurities in the liquid silica gel. Filter screens 42 are provided between the four fixing rings 41. A first fixing ring 43 is fixedly installed on the outer side of the filter screen 42, and a second fixing ring 44 is fixedly installed in the middle of the inner side of the filter screen 42. A fixing block 46 is provided on the inner side of the fixing ring 41, and a connecting piece 47 is fixedly installed on the outer side of the fixing block 46. The other end of the connecting piece 47 is fixedly connected to the fixing ring 41. The setting of the connecting piece 47 facilitates the fixing ring 41 and the fixing block 46 to be fixed, so that a channel for the flow and filtration of liquid silica gel can be formed between the fixing ring 41 and the fixing block 46. A first fixing groove 410 is opened at the bottom of the top three fixing rings 41 and the top of the bottom three fixing rings 41. The first fixing groove 410 is located on the outer side of the first fixing ring 43. A second fixing groove 49 is opened at the bottom of the top three fixing blocks 46 and the top of the bottom three fixing blocks 46. The second fixing groove 49 is located on the outer side of the second fixing ring 44. The setting of the first fixing ring 43 and the second fixing ring 44 facilitates the formation of a support frame, which makes it easy for the fixing ring 41 and the fixing block 46 to fix the filter screen 42 and prevent the filter screen 42 from deforming due to the impact of liquid silica gel.

[0037] Among them, the top three fixing blocks 46 are provided with threaded grooves 48 at the bottom center, and the bottom three fixing blocks 46 are fixedly installed with threaded blocks 411 at the top center. The threaded blocks 411 are threadedly connected to the threaded grooves 48. The setting of the threaded blocks 411 and the threaded grooves 48 makes it easy to fix the four fixing blocks 46, thereby fixing the three filter screens 42 with the four fixing blocks 46 and the four fixing rings 41, so that the filter screens 42 can filter the liquid silica gel.

[0038] The top of the top fixing ring 41 and the bottom of the bottom fixing ring 41 are both fixedly installed with a fourth sealing ring 45. The outer side of the fourth sealing ring 45 is in contact with the inner side of the filter chamber 22. The fourth sealing ring 45 facilitates the sealing of both ends of the filter assembly 4 with the inner side of the filter chamber 22, so that the liquid silica gel can only flow from the inside of the filter assembly 4, thereby filtering out particulate impurities inside the liquid silica gel.

[0039] The glue injection assembly 1 includes a glue injection seat 11, with a glue injection port 12 at the top center of the glue injection seat 11 and a distribution cavity 13 at the bottom center of the glue injection seat 11. The glue injection port 12 and the distribution cavity 13 facilitate the connection of the glue injection port 12 with the external feeding assembly, allowing the molten liquid silicone to be introduced into the device for filtration.

[0040] The glue inlet 11 has a sensor mounting port 14 on one side and a through hole 15 on the outer side. A first fixing screw 16 is inserted inside the through hole 15. The sensor mounting port 14 and the first fixing screw 16 facilitate the fixing of an external pressure sensor in the sensor mounting port 14, which is convenient for monitoring the pressure inside the distribution chamber 13 and thus evaluating the flowability of the filter screen 42. The first fixing screw 16 facilitates the fixed connection between the glue inlet assembly 1 and the glue outlet assembly 2.

[0041] The dispensing seat 21 has a dispensing port 23 at the bottom center. A first sealing ring 25 is fixedly installed on the top of the dispensing seat 21, and a second sealing ring 26 and a third sealing ring 27 are fixedly installed on the bottom of the dispensing seat 21. The dispensing port 23 facilitates the flow of filtered liquid silicone into the external injection molding device. The first sealing ring 25, the second sealing ring 26 and the third sealing ring 27 are used to improve the sealing performance between the dispensing assembly 2 and the glue inlet assembly 1 and the constant temperature assembly 3 to prevent leakage.

[0042] The glue dispensing base 21 has screw holes 24 on the outer sides of both the top and bottom ends. The screw hole 24 at the top of the glue dispensing base 21 is threadedly connected to the first fixing screw 16. The threaded connection between the screw hole 24 at the top of the glue dispensing base 21 and the first fixing screw 16 facilitates a stable connection between the glue infeed assembly 1 and the glue dispensing assembly 2.

[0043] The constant temperature component 3 includes a circulation cover 31. The outer side of the top of the circulation cover 31 is provided with a fixing ear 32. A second fixing screw 33 is inserted through the middle of the fixing ear 32. The second fixing screw 33 is threadedly connected to the screw hole 24 at the bottom of the glue dispensing seat 21. The setting of the second fixing screw 33 makes it easy to fix the constant temperature component 3 and the glue dispensing component 2, so that the circulation cover 31 and the bottom of the glue dispensing seat 21 form a circulation cavity, which facilitates the flow of the heat transfer medium inside.

[0044] The circulation cover 31 has a glue outlet 34 in the middle and a constant temperature medium interface 37 at both ends. The glue outlet 34 and the constant temperature medium interface 37 facilitate the glue outlet 23 to pass through the glue outlet 34 and the constant temperature medium interface 37 to connect to an external heat-conducting medium, so that the heat-conducting medium flows inside the circulation cavity, thereby achieving temperature control of the filter cavity 22 and keeping the liquid silicone at a high temperature for easy flow and filtration.

[0045] The circulation cover 31 has a first sealing groove 35 at the top center, which is located outside the second sealing ring 26. The circulation cover 31 has a second sealing groove 36 on the top outer side, which is located outside the third sealing ring 27. The second sealing groove 36 and the first sealing groove 35 facilitate the limiting and fixing of the second sealing ring 26 and the third sealing ring 27, improve the sealing performance between the circulation cover 31 and the glue outlet seat 21, and prevent the leakage of heat transfer medium.

[0046] Specifically, the working principle of this liquid silica gel filter is as follows: During use, the inlet 12 and distribution chamber 13 facilitate connection between the inlet 12 and the external feeding assembly, allowing molten liquid silica gel to be introduced into the device for filtration. The sensor mounting port 14 and the first fixing screw 16 facilitate the fixing of an external pressure sensor, enabling monitoring of the pressure inside the distribution chamber 13 and thus assessing the flowability of the filter screen 42. The first fixing screw 16 securely connects the inlet assembly 1 and the outlet assembly 2. The four fixing rings 41 secure the three filter screens 42 between them, facilitating the grading of the hydraulic silica gel by the three filter screens 42. The filter intercepts particulate impurities in the liquid silica gel. The connecting piece 47 facilitates the fixing of the fixing ring 41 and the fixing block 46, creating a channel for the liquid silica gel to flow and filter. The first fixing ring 43 and the second fixing ring 44 form a support frame, allowing the fixing rings 41 and the fixing blocks 46 to secure the filter screen 42 and prevent deformation from the impact of the liquid silica gel. The threaded block 411 and the threaded groove 48 facilitate the fixed connection of the four fixing blocks 46, thus securing the three filter screens 42 with the four fixing blocks 46 and the four fixing rings 41, allowing the filter screens 42 to filter the liquid silica gel. The four sealing rings 45 facilitate sealing both ends of the filter assembly 4 with the inside of the filter chamber 22, ensuring that the liquid silicone can only flow from inside the filter assembly 4, thereby filtering out particulate impurities inside the liquid silicone. The outlet 23 facilitates guiding the filtered liquid silicone into the external injection molding device. The first sealing ring 25, the second sealing ring 26, and the third sealing ring 27 improve the sealing performance between the dispensing assembly 2, the inlet assembly 1, and the thermostatic assembly 3, preventing leakage. The screw hole 24 at the top of the dispensing seat 21 is threaded into the first fixing screw 16, facilitating a secure connection between the inlet assembly 1 and the dispensing assembly 2. The second fixing screw 33 facilitates the connection of the thermostatic assembly 3... The dispensing assembly 2 is fixedly connected to the circulation cover 31, forming a circulation cavity at the bottom of the dispensing seat 21. This facilitates the flow of the heat-conducting medium inside. The dispensing hole 34 and the thermostatic medium interface 37 allow the dispensing port 23 to pass through the dispensing hole 34, and the thermostatic medium interface 37 facilitates the connection of external heat-conducting medium. This allows the heat-conducting medium to flow inside the circulation cavity, achieving temperature control of the filter chamber 22. This keeps the liquid silicone at a high temperature, facilitating the flow and filtration of the liquid silicone. The second sealing groove 36 and the first sealing groove 35 facilitate the limiting and fixing of the second sealing ring 26 and the third sealing ring 27, improving the sealing performance between the circulation cover 31 and the dispensing seat 21 and preventing leakage of the heat-conducting medium.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A liquid silicone rubber filter, characterized by, The system includes a glue inlet assembly (1), a glue outlet assembly (2) fixedly installed at the bottom of the glue inlet assembly (1), a constant temperature assembly (3) fixedly installed at the bottom of the glue outlet assembly (2), a glue outlet assembly (2) including a glue outlet seat (21), a filter chamber (22) opened inside the glue outlet seat (21), a filter assembly (4) fixedly installed inside the filter chamber (22), the filter assembly (4) including four fixing rings (41), a filter screen (42) provided between the four fixing rings (41), a first fixing ring (43) fixedly installed on the outer side of the filter screen (42), and a second fixing ring fixedly installed in the middle of the inner side of the filter screen (42). The ring (44) has a fixing block (46) on the inner side of the fixing ring (41), and a connecting piece (47) is fixedly installed on the outer side of the fixing block (46). The other end of the connecting piece (47) is fixedly connected to the fixing ring (41). The bottom of the top three fixing rings (41) and the top of the bottom three fixing rings (41) are all provided with a first fixing groove (410). The first fixing groove (410) is located on the outer side of the first fixing ring (43). The bottom of the top three fixing blocks (46) and the top of the bottom three fixing blocks (46) are all provided with a second fixing groove (49). The second fixing groove (49) is located on the outer side of the second fixing ring (44).

2. A liquid silicone filter according to claim 1, wherein, The top three fixing blocks (46) are provided with threaded grooves (48) at the bottom center, and the bottom three fixing blocks (46) are provided with threaded blocks (411) at the top center. The threaded blocks (411) are threadedly connected to the threaded grooves (48).

3. A liquid silica gel filter according to claim 2, characterized in that, The top of the top fixing ring (41) and the bottom of the bottom fixing ring (41) are both fixedly installed with a fourth sealing ring (45), and the outer side of the fourth sealing ring (45) is in contact with the inner side of the filter chamber (22).

4. A liquid silica gel filter according to claim 1, characterized in that, The glue injection assembly (1) includes a glue injection seat (11), with a glue inlet (12) at the top center of the glue injection seat (11) and a distribution cavity (13) at the bottom center of the glue injection seat (11).

5. A liquid silica gel filter according to claim 4, characterized in that, The glue inlet seat (11) has a sensor mounting port (14) on one side, and a through hole (15) is provided on the outside of the glue inlet seat (11). A first fixing screw (16) is inserted inside the through hole (15).

6. A liquid silica gel filter according to claim 1, characterized in that, The glue dispensing seat (21) has a glue outlet (23) at the middle of its bottom end. A first sealing ring (25) is fixedly installed on the top of the glue dispensing seat (21), and a second sealing ring (26) and a third sealing ring (27) are fixedly installed on the bottom of the glue dispensing seat (21).

7. A liquid silica gel filter according to claim 6, characterized in that, The glue dispensing seat (21) has screw holes (24) on the outer sides of both the top and bottom ends. The screw holes (24) at the top of the glue dispensing seat (21) are threadedly connected to the first fixing screw (16).

8. A liquid silica gel filter according to claim 1, characterized in that, The constant temperature component (3) includes a circulation cover (31), and a fixing ear (32) is provided on the outer side of the top of the circulation cover (31). A second fixing screw (33) is inserted in the middle of the fixing ear (32), and the second fixing screw (33) is threadedly connected to the screw hole (24) at the bottom of the glue outlet (21).

9. A liquid silica gel filter according to claim 8, characterized in that, The circulation cover (31) has an adhesive outlet (34) in the middle and constant temperature medium interfaces (37) at both ends.

10. A liquid silica gel filter according to claim 9, characterized in that, The top center of the circulation cover (31) is provided with a first sealing groove (35), which is located outside the second sealing ring (26). The top outer side of the circulation cover (31) is provided with a second sealing groove (36), which is located outside the third sealing ring (27).

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