Cut powder filtering device for PMMA particle production

Abstract

The utility model discloses a cut powder filtering device for PMMA (polymethyl methacrylate) particle production, which belongs to the field of filtering devices, and comprises a filtering inner hollow outer cylinder, a first main flange arranged in the middle of the filtering inner hollow outer cylinder, a filtering material blocking component arranged at the inner end of the filtering inner hollow outer cylinder, and a second main flange arranged in the middle of the filtering inner hollow outer cylinder. The filtering and blocking assembly comprises a plurality of hollow supporting rings which are arranged at equal intervals from left to right, filtering and blocking net faces are arranged at the inner ends of the hollow supporting rings, slotting strip openings are symmetrically formed in the upper inner walls and the lower inner walls of the hollow supporting rings, follow-up self-sliding blocks are slidably connected to the inner ends of the slotting strip openings, and the follow-up self-sliding blocks are connected with the outer side walls of the filtering and blocking net faces; according to the scheme, cutting powder generated in the PMMA production process can be filtered, so that the cutting powder is prevented from blocking related devices, and the operation efficiency of the equipment is further guaranteed. A hollow circular ring is fixedly connected to the front end of the slotting strip opening, and the end, close to the follow-up self-sliding block, of the hollow circular ring is fixedly connected with a spring transverse pulling piece.

Description

Technical Field

[0001] This utility model relates to the field of filtration devices, and more specifically, to a powder-cutting filtration device for PMMA particle production. Background Technology

[0002] PMMA stands for polymethyl methacrylate, a high molecular weight polymer. PMMA particles are the granular form of this polymer, typically appearing as colorless, transparent, bead-like granules. They possess excellent optical properties and good weather resistance, exhibiting good resistance to ultraviolet radiation and humidity in the natural environment. When used outdoors, unlike some plastics, they do not yellow or become brittle easily, maintaining their physical and chemical stability over a long period.

[0003] During the PMMA filament pelletizing process, a large amount of powder is generated. This powder enters the pellet conveying device, and the accumulation of powder in the pipes can clog the pellet conveying pipes and the gear pump that powers the pellet conveying. Later, the pipes and gear pumps need to be dismantled and cleaned, causing production line shutdowns and hindering the company's profitability. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a powder filtration device for PMMA particle production. This solution can filter the powder generated in the PMMA production process, thereby preventing the powder from clogging related devices and ensuring equipment operating efficiency.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A powder-cutting and filtering device for PMMA particle production includes an inner hollow outer cylinder, a first main flange located in the middle of the inner hollow outer cylinder, a filter retaining assembly located at the inner end of the inner hollow outer cylinder, the filter retaining assembly including multiple hollow support rings equidistantly arranged from left to right, a filter interception mesh located at the inner end of the hollow support rings, slotted openings symmetrically formed on the upper and lower inner walls of the hollow support rings, a follower self-sliding block slidably connected to the inner end of the slotted opening, the follower self-sliding block being connected to the outer wall of the filter interception mesh, a hollow ring fixedly connected to the front end of the slotted opening, a spring lateral pulling member fixedly connected to the end of the hollow ring near the follower self-sliding block, and a rebound hollow ball fixedly connected to the rear inner wall of the slotted opening.

[0009] Furthermore, a discharge port is fixedly connected to the left end of the inner hollow outer cylinder of the filter, and a feed port is fixedly connected to the right end of the inner hollow outer cylinder of the filter.

[0010] Furthermore, both the discharge port and the inlet port are fixedly connected to one-way valves.

[0011] Furthermore, a second flange is provided at the outer end of both the inlet and outlet pipes, and the second flange is located on the side away from the one-way valve.

[0012] Furthermore, the rebounding hollow ball and the follower self-sliding block are in contact with each other, and a pair of follower ropes are fixedly connected to the upper inner wall of the hollow support ring.

[0013] Furthermore, the lower end of the follower rope is fixedly connected to an impact outer ball block, which contacts the outer wall of the filter interception mesh.

[0014] Furthermore, the multiple filter screens, from right to left, are 300 mesh, 400 mesh, 500 mesh, and 600 mesh respectively.

[0015] 3. Beneficial Effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This solution can filter the powder generated in the PMMA production process, thereby avoiding the powder from clogging the relevant devices and ensuring the operating efficiency of the equipment. As time goes by, the powder will clog some of the mesh holes of the filter screen. Therefore, spring lateral pullers that are in harmony with the airflow are set at the upper and lower positions of the hollow support ring. During the blowing of the airflow, the spring lateral pullers can make the follower self-sliding block move backward and contact the rebound hollow ball when the follower self-sliding block moves backward. The elastic force generated between the two can help to knock off the attached material on the filter screen, and the pores in the filter screen will be cleared again, thereby ensuring that the entire filtration device can work continuously and efficiently and will not frequently interrupt the filtration process due to filter screen clogging.

[0018] (2) Furthermore, during airflow transport, the impact outer ball block in front of the filter interception mesh can also make contact with the middle position of the filter interception mesh. The impact outer ball block can increase the force point of the spring material on the filter interception mesh, eliminating the need for complex tools and methods to remove stubborn blockages and powder, thus reducing maintenance difficulty. Attached Figure Description

[0019] Figure 1 This is a side view cross-sectional structural diagram of the filter inner hollow outer cylinder of this utility model;

[0020] Figure 2 This is a schematic diagram of the axial structure of the hollow support ring of this utility model;

[0021] Figure 3 For the present utility model Figure 2 Schematic diagram of a partially truncated enlarged structure of the hollow support ring;

[0022] Figure 4 This is a side sectional view of the slotted strip structure of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Hollow inner cylinder of the filter; 2. First main flange; 3. Inlet pipe; 4. Outlet pipe; 5. One-way valve; 6. Second flange; 7. Filter material blocking assembly; 8. Hollow support ring; 9. Filter interception mesh; 10. Grooved strip; 11. Hollow ring; 12. Spring lateral pulling component; 13. Follow-up self-sliding block; 14. Rebound hollow ball; 15. Follow-up rope; 16. Impact outer ball block. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example:

[0029] Please see Figure 1-4A powder-cutting and filtering device for PMMA particle production includes an inner hollow outer cylinder 1, a first main flange 2 located in the middle of the inner hollow outer cylinder 1, a filter material blocking assembly 7 located at the inner end of the inner hollow outer cylinder 1, the filter material blocking assembly 7 including a plurality of hollow support rings 8 equidistantly arranged from left to right, a filter interception mesh surface 9 located at the inner end of the hollow support rings 8, symmetrical slotted openings 10 on the upper and lower inner walls of the hollow support rings 8, a follower self-sliding slider 13 slidably connected to the inner end of the slotted opening 10, the follower self-sliding slider 13 being interconnected with the outer wall of the filter interception mesh surface 9, a hollow ring 11 fixedly connected to the front end of the slotted opening 10, a spring lateral pulling member 12 fixedly connected to the end of the hollow ring 11 near the follower self-sliding slider 13, and a rebound hollow ball 14 fixedly connected to the rear inner wall of the slotted opening 10.

[0030] Please see Figure 1-4 The left end of the inner hollow outer cylinder 1 of the filter is fixedly connected to the discharge port 4, and the right end of the inner hollow outer cylinder 1 of the filter is fixedly connected to the inlet port 3. The inner ends of the discharge port 4 and the inlet port 3 are both fixedly connected to the one-way valves 5. The outer ends of the inlet port 3 and the discharge port 4 are both provided with the second flange 6. The second flange 6 is located on the side away from the one-way valve 5. The rebound hollow ball 14 and the follower self-sliding block 13 are in contact with each other. A pair of follower ropes 15 are fixedly connected to the upper inner wall of the hollow support ring 8. The lower end of the follower ropes 15 is fixedly connected to the impact outer ball block 16. The impact outer ball block 16 is in contact with the outer wall of the filter interception mesh 9. The multiple filter interception meshes 9 are 300 mesh, 400 mesh, 500 mesh and 600 mesh from right to left.

[0031] Please see Figure 1-4This solution includes a hollow inner cylinder 1 and four detachable filter screens 9 with different aperture sizes. The aperture size of the filter screens 9 gradually decreases, resulting in a progressively better filtration effect. The hollow inner cylinder 1 is designed for right-inlet and left-outlet operation. One-way valves 5 are installed at both the inlet 3 and outlet 4. When the production line stops, the one-way valves 5 prevent backflow of the powder from the filter media assembly 7. A first main flange 2 and one-way valves 5 are installed between the hollow inner cylinders 1 and on the inlet 3 and outlet 4. The one-way valves 5 connect the hollow inner cylinder 1 and outlet 4, or connect the one-way valves 5 to a gear pump. The first main flange 2 on the hollow inner cylinder 1 facilitates the removal of the filter screens 9 for replacement and cleaning. This solution can filter the powder generated during the PMMA production process, preventing clogging of related devices and ensuring equipment operating efficiency. Over time... The moving powder will clog part of the mesh of the filter screen 9. Therefore, spring-loaded horizontal pullers 12 are provided at the upper and lower positions of the hollow support ring 8 to cooperate with the airflow. During the blowing of the airflow, the spring-loaded horizontal pullers 12 can cause the follower slider 13 to retract. When the follower slider 13 retracts, it comes into contact with the rebound hollow ball 14. The elastic force generated between the two can help to knock off the attached material on the filter screen 9, and the pores in the filter screen 9 are cleared again. This ensures that the entire filtration device can work continuously and efficiently without frequent interruptions to the filtration process due to filter screen blockage. In addition, during airflow, it can also drive the impact outer ball block 16 in front of the filter screen 9 to come into contact with the middle position of the filter screen 9. The impact outer ball block 16 can increase the force point of the material rebound on the filter screen 9. It is not necessary to use complicated tools and methods to remove stubborn blockage powder, which reduces the maintenance difficulty.

[0032] The above are merely preferred embodiments of this utility model; however, the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and its improved concept, should be included within the scope of protection of this utility model.

Claims

1. A powder-cutting and filtering device for PMMA particle production, comprising a hollow inner filter cylinder (1), characterized in that: The inner hollow outer cylinder (1) of the filter is provided with a first main flange (2) in the middle. The inner end of the inner hollow outer cylinder (1) of the filter is provided with a filter material blocking assembly (7). The filter material blocking assembly (7) includes a plurality of hollow support rings (8) arranged equidistantly from left to right. The inner end of the hollow support ring (8) is provided with a filter interception mesh surface (9). The upper and lower inner walls of the hollow support ring (8) are symmetrically provided with slotted slots (10). The inner end of the slotted slot (10) is slidably connected with a follower self-sliding block (13). The follower self-sliding block (13) is connected to the outer wall of the filter interception mesh surface (9). The front end of the slotted slot (10) is fixedly connected with a hollow ring (11). The end of the hollow ring (11) near the follower self-sliding block (13) is fixedly connected with a spring lateral pulling member (12). The rear inner wall of the slotted slot (10) is fixedly connected with a rebound hollow ball (14).

2. The powder cutting and filtering device for PMMA particle production according to claim 1, characterized in that: The left end of the inner hollow outer cylinder (1) of the filter is fixedly connected to the discharge port (4), and the right end of the inner hollow outer cylinder (1) of the filter is fixedly connected to the inlet port (3).

3. A powder-cutting and filtering device for PMMA particle production according to claim 2, characterized in that: The inner ends of the discharge port (4) and the inlet port (3) are both fixedly connected with one-way valves (5).

4. A powder-cutting and filtering device for PMMA particle production according to claim 3, characterized in that: The outer ends of the feed inlet (3) and the discharge inlet (4) are provided with a second flange (6), which is located on the side away from the one-way valve (5).

5. A powder-cutting and filtering device for PMMA particle production according to claim 1, characterized in that: The rebound hollow ball (14) and the follower self-sliding block (13) are in contact with each other, and a pair of follower ropes (15) are fixedly connected to the upper inner wall of the hollow support ring (8).

6. A powder-cutting and filtering device for PMMA particle production according to claim 5, characterized in that: The lower end of the follower rope (15) is fixedly connected to an impact outer ball block (16), which is in contact with the outer wall of the filter interception mesh surface (9).

7. A powder-cutting and filtering device for PMMA particle production according to claim 1, characterized in that: The multiple filter interception meshes (9) are arranged from right to left as follows: 300 mesh, 400 mesh, 500 mesh, and 600 mesh.

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