Resin filtering device

Abstract

The utility model belongs to the technical field of resin filtering, and particularly relates to a resin filtering device which comprises a box body, a filtering cavity and a filter residue storage cavity are formed in the box body, a first filtering net is horizontally installed in the filtering cavity to divide the filtering cavity into an upper cavity and a lower cavity, a discharging opening is formed in the lower cavity, and a spiral propelling mechanism communicated with the upper cavity is installed in the box body. A filter cavity and a filter residue storage cavity are formed in the box body, a feeding opening is formed in the filter cavity, a first material passing opening is formed between the filter residue storage cavity and the upper cavity, a baffle is installed, and the baffle is jacked open after excessive filter residues are accumulated in the upper cavity, and the filter cavity and the filter residue storage cavity are formed in the box body, and then the baffle is used for blocking; the acting force of the spiral propelling mechanism is applied to the baffle through filter residues, the baffle is jacked open, the filter residues fall into the filter residue storage cavity, excessive residues on the filter screen are avoided, smoothness and the filtering effect of the filter screen can be guaranteed for a long time, and continuous fine filtering of resin is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of resin filtration technology, and in particular relates to a resin filtration device. Background Technology

[0002] Solar cell backsheet films are typically made from PET resin chips that are heated and biaxially stretched to form semi-finished products. These semi-finished products are then slit by a slitting machine to obtain the finished products. In the production of PET resin chips, the resin usually undergoes process steps such as metal detection, melt plasticizing extrusion, fine filtration, die extrusion, and double-sided casting and shaping.

[0003] Traditional fine filtration of resins typically involves applying pressure to force the resin through a filter medium, thereby trapping filter residue. Some methods place the resin on a filter screen and then use a scraper to repeatedly or rotate across the screen, continuously removing impurities to maintain filter patency and filtration efficiency. For example, Chinese patent application number (2023113640240) discloses a filtration and purification device and method for photoresist film-forming resins. This application places the resin on a primary filter plate and then uses a rotating mechanism to drive a rotating shaft that rotates an agitator plate. However, this method results in filter residue accumulating on the filter screen. Although the agitator plate temporarily scrapes away the residue, prolonged use leads to excessive residue buildup, affecting filter patency and filtration efficiency, hindering continuous fine filtration. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a resin filtration device that removes filter residue from the filter screen during fine filtration of resin, thus facilitating continuous fine filtration.

[0005] In view of this, the present invention provides a resin filtration device, comprising:

[0006] The housing contains a filter chamber and a filter residue storage chamber.

[0007] The first filter screen is installed horizontally inside the filter chamber, dividing the filter chamber into an upper chamber and a lower chamber, and a discharge port is provided in the lower chamber;

[0008] The screw propulsion mechanism is installed inside the housing and connected to the upper chamber, and has a feed inlet.

[0009] The filter residue storage chamber is connected to the upper chamber by a first material passage, and a baffle is installed at the first material passage. The baffle is pushed open after too much filter residue accumulates in the upper chamber.

[0010] In the above technical solution, the spiral propulsion mechanism further includes:

[0011] The material cylinder is installed inside the housing and communicates with the upper chamber, and a main shaft is axially mounted thereon;

[0012] The spiral blades are mounted on the main shaft and, when rotated, push the resin in the barrel to move upward into the chamber.

[0013] The motor is mounted on the side of the housing and is used to drive the main shaft to rotate.

[0014] In the above technical solution, further:

[0015] The baffle has a circular hole that matches the spindle, and the baffle is slidably connected to the spindle.

[0016] Furthermore, the above technical solution also includes:

[0017] A spring-loaded telescopic rod is installed on the side of the baffle away from the upper chamber and is used to push the baffle against the first feed port.

[0018] In the above technical solution, further:

[0019] A second material passage is provided between the filter residue storage chamber and the lower chamber, and a second filter screen is installed at the second material passage.

[0020] In the above technical solution, further:

[0021] A third material inlet is provided on the baffle, and a third filter screen is installed in the third material inlet.

[0022] Furthermore, the above technical solution also includes:

[0023] The reinforcing rod includes a first reinforcing rod installed on the side of the first filter screen near the lower chamber and a second reinforcing rod installed on the side of the second filter screen near the lower chamber.

[0024] In the above technical solution, further:

[0025] A slag removal port is provided on the side of the filter residue storage chamber away from the lower chamber, and a cover plate is installed on the slag removal port.

[0026] The beneficial effects of this utility model are as follows:

[0027] 1. By setting a filter chamber and a filter residue storage chamber inside the box, and then blocking the first feed port between the two and the baffle at the first feed port, when there is too much filter residue on the first filter screen, it will be pushed and pressed against the baffle. The filter residue will apply the force of the spiral propulsion mechanism to the baffle, thereby opening the baffle and causing the filter residue to fall into the filter residue storage chamber, avoiding excessive residue on the filter screen. This can ensure the smooth flow of the filter screen and the filtration effect for a long time, which is conducive to the continuous fine filtration of the resin.

[0028] 2. By providing a second feed port for installing a second filter screen between the filter residue storage chamber and the lower chamber, the resin falling into the filter residue storage chamber can undergo further self-filtration and enter the lower chamber through the second filter screen, thereby ensuring the filtration effect of the resin and avoiding resin waste.

[0029] 3. By opening a cleaning port on the side of the filter residue storage chamber, it is easy to clean the filter residue, effectively improving the convenience of use. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a cross-sectional view of the present invention;

[0032] Figure 3 This is a utility model Figure 2 Enlarged view of point A in the middle;

[0033] The markings in the diagram represent: 1. Box body; 2. Filter chamber; 20. Upper chamber; 21. Lower chamber; 3. Filter residue storage chamber; 4. First filter screen; 5. Discharge port; 6. Screw propulsion mechanism; 60. Material cylinder; 61. Main shaft; 62. Spiral blade; 63. Motor; 7. Feed inlet; 8. First feed outlet; 9. Baffle; 10. Round hole; 11. Spring telescopic rod; 12. Second feed outlet; 13. Second filter screen; 14. Third feed outlet; 15. Third filter screen; 16. First reinforcing rod; 17. Second reinforcing rod; 18. Slag removal port; 19. Cover plate. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0035] Example 1:

[0036] This embodiment provides a resin filtration device, including:

[0037] The housing 1 has a filter chamber 2 and a filter residue storage chamber 3 inside;

[0038] The first filter screen 4 is horizontally installed in the filter chamber 2, dividing the filter chamber 2 into an upper chamber 20 and a lower chamber 21, and a discharge port 5 is provided in the lower chamber 21.

[0039] The spiral propulsion mechanism 6 is installed inside the housing 1 and is connected to the upper chamber 20, and has a feed inlet 7.

[0040] A first material passage 8 is formed between the filter residue storage chamber 3 and the upper chamber 20, and a baffle 9 is installed at the first material passage 8. The baffle 9 is pushed open after too much filter residue accumulates in the upper chamber 20.

[0041] As can be seen from this embodiment, by setting a filter chamber 2 and a filter residue storage chamber 3 inside the housing 1, and then blocking them through the first feed port 8 and the baffle 9 at the first feed port 8, when there is too much filter residue on the first filter screen 4, it will be pushed and pressed against the baffle 9. The filter residue will apply the force of the spiral propulsion mechanism 6 to the baffle 9, thereby opening the baffle 9 and causing the filter residue to fall into the filter residue storage chamber 3, avoiding excessive residue on the filter screen. This can ensure the smooth flow of the filter screen and the filtration effect for a long time, which is beneficial to the continuous fine filtration of the resin.

[0042] Example 2:

[0043] This embodiment provides a resin filtration device, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the spiral propulsion mechanism 6 includes:

[0044] The material cylinder 60 is installed inside the housing 1 and communicates with the upper chamber 20, and the main shaft 61 is axially installed thereon;

[0045] The spiral blade 62 is mounted on the main shaft 61 and pushes the resin to move upward into the chamber 20 within the barrel 60 when it rotates.

[0046] Motor 63 is mounted on the side of housing 1 and is used to drive the main shaft 61 to rotate;

[0047] The feed inlet 7 is located on the inner wall of the material cylinder 60 near the motor 63.

[0048] As can be seen from this embodiment, by using a motor 63 to drive the main shaft 61 and drive the spiral blades 62 to rotate, the resin entering through the feed inlet 7 is pushed to move upward into the chamber 20, effectively ensuring continuous fine filtration.

[0049] Example 3:

[0050] This embodiment provides a resin filtration device, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0051] The baffle 9 has a circular hole 10 that matches the spindle 61, and the baffle 9 is slidably connected to the spindle 61.

[0052] As can be seen from this embodiment, by opening a circular hole 10 on the baffle 9 and making the baffle 9 slidably connected to the main shaft 61, that is, the main shaft 61 is set through the circular hole 10, the baffle 9 can be restricted so that it can only move along the axial direction of the main shaft 61, thereby effectively improving the stability of the movement of the baffle 9.

[0053] Example 4:

[0054] This embodiment provides a resin filtration device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and further includes:

[0055] A spring telescopic rod 11 is installed on the side of the baffle 9 away from the upper chamber 20 and is used to push the baffle 9 against the first feed port 8;

[0056] Multiple spring telescopic rods 11 can be provided and arranged around the main shaft 61, and the springs can be built-in.

[0057] As can be seen from this embodiment, by using the spring telescopic rod 11, it is convenient to apply force to the baffle 9, so that under the action of the spiral propulsion mechanism 6, the filter residue accumulates on the side of the first filter screen 4 located on the baffle 9. When the filter residue accumulation is small, the force applied to the baffle 9 by the spiral propulsion mechanism 6 through the filter residue is small and cannot push the baffle 9 open. At the same time, the force of the spiral propulsion mechanism 6 on the resin will make the resin pass through the first filter screen 4 more quickly, that is, apply pressure for fine filtration. When the filter residue accumulation is large, the force applied to the baffle 9 by the spiral propulsion mechanism 6 through the filter residue is large, thereby pushing the baffle 9 open and causing the filter residue to fall into the filter residue storage cavity 3.

[0058] Example 5:

[0059] This embodiment provides a resin filtration device, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0060] A second material passage 12 is provided between the filter residue storage chamber 3 and the lower chamber 21, and a second filter screen 13 is installed in the second material passage 12.

[0061] As can be seen from this embodiment, by providing a second feed port 12 for installing a second filter screen 13 between the filter residue storage chamber 3 and the lower chamber 21, the resin falling into the filter residue storage chamber 3 can undergo further self-filtration and enter the lower chamber 21 through the second filter screen 13, thereby ensuring the filtration effect of the resin and avoiding waste of resin; that is, it can promote the resin falling into the filter residue storage chamber 3 with the filter residue to pass through the second filter screen 13 and enter the lower chamber 21 by its own fluidity.

[0062] Meanwhile, as more and more filter residue accumulates in the filter residue storage chamber 3, the gravity of the filter residue can promote better self-flowing filtration in this part, effectively avoiding waste of resin.

[0063] Example 6:

[0064] This embodiment provides a resin filtration device, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0065] A third feed port 14 is provided on the baffle 9, and a third filter screen 15 is installed in the third feed port 14.

[0066] As can be seen from this embodiment, by opening a third feed port 14 on the baffle 9 and installing a third filter screen 15 on the third feed port 14, when the force exerted on the baffle 9 by the screw propulsion mechanism 6 through the filter residue is small and the baffle 9 is not pushed open, the resin in the squeezed filter residue will pass through the third filter screen 15 and enter the filter residue storage cavity 3, and then enter the lower chamber 21 through the second filter screen 13, thus ensuring that the resin in the filter residue is squeezed out.

[0067] Example 7:

[0068] This embodiment provides a resin filtration device, which, in addition to the technical solutions of the above embodiments, also has the following technical features, and further includes:

[0069] The reinforcing rods include a first reinforcing rod 16 installed on the side of the first filter screen 4 near the lower chamber 21 and a second reinforcing rod 17 installed on the side of the second filter screen 13 near the lower chamber 21.

[0070] Multiple first reinforcing rods 16 and multiple second reinforcing rods 17 can be provided, and the more the multiple second reinforcing rods 17 located at the second filter screen 13 are closer to the bottom of the filter residue storage chamber 3, the denser they are.

[0071] As can be seen from this embodiment, by setting the reinforcing rod, the structural strength and stability of the first filter screen 4 and the second filter screen 13 can be effectively avoided, thus ensuring the fine filtration effect;

[0072] The second reinforcing rods 17 are arranged more densely closer to the bottom of the filter cake storage cavity 3, which can effectively ensure the structural stability of the second filter screen 13 when too much filter cake accumulates in the filter cake storage cavity 3.

[0073] Example 8:

[0074] This embodiment provides a resin filtration device, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0075] A slag removal port 18 is provided on the side of the filter residue storage chamber 3 away from the lower chamber 21, and a cover plate 19 is installed on the slag removal port 18;

[0076] The cover plate 19 and the box body 1 can be sealed with a sealing strip, and the cover plate 19 can be fastened with bolts.

[0077] As can be seen from this embodiment, by opening a cleaning port 18 on the side of the filter residue storage chamber 3, it is convenient to clean the filter residue, which effectively improves the ease of use. The sealing strip and bolts can prevent the filter residue from leaking at the cleaning port 18 and ensure the ease of installation and disassembly of the cover plate 19 and the structural stability of the cover plate 19.

[0078] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A resin filtration device, characterized in that, include: The box body (1) has a filter chamber (2) and a filter residue storage chamber (3) inside; The first filter screen (4) is horizontally installed in the filter chamber (2) and divides the filter chamber (2) into an upper chamber (20) and a lower chamber (21), and a discharge port (5) is provided in the lower chamber (21); The spiral propulsion mechanism (6) is installed inside the housing (1) and connected to the upper chamber (20), and has a feed inlet (7); A first feed port (8) is formed between the filter residue storage chamber (3) and the upper chamber (20), and a baffle (9) is installed at the first feed port (8). The baffle (9) is pushed open after too much filter residue accumulates in the upper chamber (20).

2. The resin filtration device according to claim 1, characterized in that, The spiral propulsion mechanism (6) includes: The material cylinder (60) is installed inside the housing (1) and communicates with the upper chamber (20), and a main shaft (61) is axially installed thereon; The spiral blade (62) is mounted on the main shaft (61) and pushes the resin in the barrel (60) to move upward into the chamber (20) when it rotates; The motor (63) is mounted on the side of the housing (1) and is used to drive the spindle (61) to rotate.

3. The resin filtration device according to claim 2, characterized in that: The baffle (9) has a circular hole (10) adapted to the main shaft (61), and the baffle (9) is slidably connected to the main shaft (61).

4. The resin filtration device according to claim 1, characterized in that, Also includes: A spring telescopic rod (11) is installed on the side of the baffle (9) away from the upper chamber (20) and is used to push the baffle (9) against the first feed port (8).

5. The resin filtration device according to claim 1, characterized in that: A second material passage (12) is provided between the filter residue storage chamber (3) and the lower chamber (21), and a second filter screen (13) is installed in the second material passage (12).

6. The resin filtration device according to claim 5, characterized in that: The baffle (9) is provided with a third material passage (14), and a third filter screen (15) is installed in the third material passage (14).

7. The resin filtration device according to claim 5, characterized in that, Also includes: The reinforcing rods include a first reinforcing rod (16) installed on the side of the first filter (4) near the lower chamber (21) and a second reinforcing rod (17) installed on the side of the second filter (13) near the lower chamber (21).

8. The resin filtration device according to claim 1, characterized in that: The filter residue storage chamber (3) has a slag removal port (18) on the side away from the lower chamber (21), and a cover plate (19) is installed on the slag removal port (18).

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