A filter structure for plastic extruder

Abstract

The utility model discloses a filtering structure of a plastic extruder, and relates to the technical field of plastic extruders, comprising a bottom plate, a motor box is arranged on one side of the top of the bottom plate, a feeding pipe is arranged in the middle of one side of the motor box, a filter assembly is arranged at one end of the feeding pipe, a pumping assembly is arranged at the bottom end of the filter assembly, the filter assembly comprises a filter box, the filter box is arranged at the end of the feeding pipe, a card slot is arranged at the bottom end of the inner wall of the filter box, the pumping assembly comprises a support frame, the support frame is arranged at the bottom end of the filter box, a pumping pump is arranged inside the support frame, a feeding port of the pumping pump is connected with a feeding pipe, and one end of the feeding pipe is connected to one side of the bottom end of the filter box; the beneficial effect of the utility model is that by setting the pumping assembly, starting the pumping pump is convenient for the staff to extract the unfiltered materials and impurities remaining at the bottom of the inner wall of the filter box, and prevents them from accumulating and causing blockage, thereby improving the filtering effect and being convenient to use.

Description

Technical Field

[0001] The utility model relates to a filtering mechanism, in particular to a filtering structure of a plastic extruder, belonging to the technical field of plastic extruders. Background Art

[0002] Extruder is a type of plastic machinery, which originated in the 18th century. According to the direction of the extruder head and the angle between the center line of the screw, the extruder head can be divided into right-angle head and bevel head. The screw extruder relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the material, and form it through the die. Plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and the rare multi-screw extruders and screwless extruders.

[0003] Among them, the "plastic extruder with a filtering structure" disclosed in the application number "CN202222581924.8" is also an increasingly mature technology, including a heated extrusion unit, fixing the second filter screen at the inner edge of the plug-in frame, and forming a first material storage part between the other edge of the plug-in frame and the first filter screen, and forming a second material storage part between the first filter screen and the second filter screen. At the same time, the mesh number of the first filter screen is smaller than the mesh number of the second filter screen, so that when filtering impurities, impurities with smaller particles are isolated in the second material storage part, and impurities with larger particles are isolated in the first material storage part. When replacing the double-layer filter plug-in plate, the impurities are retained in the first material storage part and the second material storage part, which is convenient for taking out the impurities.

[0004] However, the above disclosed method still has the following defects when it is actually used: unfiltered materials and impurities are likely to remain inside the filter box and accumulate inside the filter box, which is easy to cause blockage and difficult to clean. Utility Model Content

[0005] The utility model aims to provide a filter structure for a plastic extruder to solve the problem that unfiltered materials and impurities are easily left inside the filter box and accumulate inside the filter box as mentioned in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering structure of a plastic extruder, comprising a bottom plate, a motor box is provided on one side of the top of the bottom plate, a feed pipe is provided in the middle of one side of the motor box, a filter assembly is provided at one end of the feed pipe, a pumping assembly is provided at the bottom end of the filter assembly, the filter assembly comprises a filter box, the filter box is arranged at the end of the feed pipe, a card slot is provided at the bottom end of the inner wall of the filter box, the interior of the card slot is connected to the filter plate by a card block, the pumping assembly comprises a support frame, the support frame is arranged at the bottom end of the filter box, a pumping pump is provided inside the support frame, a feed inlet of the pumping pump is connected to a feed pipe, and one end of the feed pipe is connected to one side of the bottom end of the filter box.

[0007] As a preferred technical solution of the utility model, a through groove is provided in the middle of the top end of the filter box, and a first handle is provided in the middle of the top end of the filter plate.

[0008] As a preferred technical solution of the utility model, a valve is provided on one side of the feed pipe, and the discharge port of the feed pump is connected to a discharge pipe.

[0009] As a preferred technical solution of the utility model, a collection box is provided at the top of the bottom plate, and one end of the discharge pipe is placed directly above the collection box.

[0010] As a preferred technical solution of the utility model, a driving motor is provided inside the motor box, a transmission shaft of the driving motor is connected to a conveying screw, the conveying screw is arranged inside the conveying pipe, a lighting lamp is provided at the top of the inner wall of the motor box, a box door is rotatably provided on one side of the front side of the motor box, and a second handle is provided in the middle of one side of the box door.

[0011] As a preferred technical solution of the utility model, a conduit is provided on one side of the top of the feed pipe, a feed hopper is provided on the top of the conduit, a first sealing cover is threadedly connected to the top of the feed hopper, an electric heater is provided on the surface of the feed pipe, a discharge hopper is provided on one side of the filter box, and a second sealing cover is threadedly connected to one end of the discharge hopper.

[0012] As a preferred technical solution of the utility model, a first support leg is provided at the bottom end of the discharge hopper, a second support leg is provided at one side of the bottom end of the feed pipe, and the extruder is arranged at an angle.

[0013] Compared with the related art, the filter structure of a plastic extruder provided by the utility model has the following beneficial effects:

[0014] 1. By setting up the extraction component, starting the extraction pump makes it easier for the staff to extract the unfiltered materials and impurities remaining at the bottom of the inner wall of the filter box to prevent them from accumulating and causing blockage, which can improve the filtering effect and is convenient to use;

[0015] 2. The filter assembly is set up to facilitate filtering of impurities inside the plastic. The staff can pull out the filter plate through the first handle to clean its surface, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 It is a partial enlarged structural schematic diagram of the material extraction component of the utility model;

[0019] Figure 4 It is a schematic diagram of the partial explosion structure of the filter component of the utility model.

[0020] In the figure: 1. bottom plate; 2. motor box; 3. second handle; 4. box door; 5. feed pipe; 6. extraction assembly; 7. filter assembly; 8. guide tube; 9. electric heater; 10. drive motor; 11. lighting lamp; 12. feed hopper; 13. first sealing cover; 14. conveying screw; 15. discharge hopper; 16. second sealing cover; 17. support leg one; 18. collection box; 19. support leg two; 601. support frame; 602. extraction pump; 603. feed pipe; 604. discharge pipe; 605. valve; 701. filter box; 702. through groove; 703. filter plate; 704. first handle; 705. block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] See also Figure 1-4 The utility model provides a filtering structure of a plastic extruder, including a bottom plate 1, a motor box 2 is fixedly arranged on one side of the top of the bottom plate 1, a feeding pipe 5 is fixedly arranged in the middle of one side of the motor box 2, a filtering component 7 is arranged at one end of the feeding pipe 5, and a material extraction component 6 is arranged at the bottom end of the filtering component 7. The motor box 2 can protect and support the driving motor 10, and the feeding pipe 5 is convenient for transporting materials;

[0024] The filter assembly 7 includes a filter box 701, which is arranged at the end of the feed pipe 5. A fixed slot is arranged at the bottom of the inner wall of the filter box 701. The inside of the slot is connected to the filter plate 703 by a clamping block 705. The provided clamping slot and the clamping block 705 facilitate the fixing of the filter plate 703 to prevent the filter plate from shaking during the filtering operation, thereby affecting the filtering effect. It is also convenient for the staff to install and disassemble the filter plate 703, and it is convenient to clean the impurities filtered out of the surface of the filter plate, which is convenient to use.

[0025] A through slot 702 is fixedly provided in the middle of the top of the filter box 701, and a first handle 704 is fixedly provided in the middle of the top of the filter plate 703. The through slot 702 is provided to facilitate the staff to install the filter plate 703 into the filter box 701, and the first handle 704 is provided to facilitate the staff to pull out the filter plate 703 for cleaning.

[0026] A driving motor 10 is fixedly arranged inside the motor box 2, and a transmission shaft of the driving motor 10 is connected to a conveying screw 14, and the conveying screw 14 is arranged inside the feeding pipe 5. A lighting lamp 11 is fixedly arranged on the top of the inner wall of the motor box 2. A box door 4 is rotatably arranged on one side of the front of the motor box 2, and a second handle 3 is fixedly arranged in the middle of one side of the box door 4. When the staff starts the driving motor 10, the transmission shaft of the driving motor 10 rotates to drive the conveying screw 14 to carry out conveying work, and the material inside the feeding pipe 5 can be transported. When the driving motor 10 needs to be repaired, the staff holds the second handle 3 to open the box door 4, and repairs the driving motor 10 inside the motor box 2. In a dim light environment, the lighting lamp 11 can also be turned on for maintenance work, which is convenient to use;

[0027] A conduit 8 is fixedly provided on one side of the top of the feed pipe 5, and an inlet hopper 12 is fixedly provided on the top of the conduit 8. A first sealing cover 13 is threadedly connected to the top of the inlet hopper 12. An electric heater 9 is fixedly provided on the surface of the feed pipe 5. A discharge hopper 15 is fixedly provided on one side of the filter box 701, and a second sealing cover 16 is threadedly connected to one end of the discharge hopper 15. The staff opens the first sealing cover 13, puts the material to be filtered into the inlet hopper 12, and transports it to the inside of the feed pipe 5 through the conduit 8. The electric heater 9 can properly increase the temperature to prevent the material from solidifying, which is beneficial to the transportation work. The second sealing cover 16 is opened, and the filtered material can be discharged from the inside of the discharge hopper 15, which is convenient to use.

[0028] Specifically, the through groove 702 is convenient for the staff to install the filter plate 703 into the interior of the filter box 701, the first handle 704 is convenient for the staff to pull out the filter plate 703 for cleaning, and the card slot and card block 705 are convenient for fixing the filter plate 703 to prevent it from shaking during filtering and affecting the filtering effect. It is also convenient for the staff to install and disassemble the filter plate 703 and clean the impurities filtered out from its surface. It is easy to use.

[0029] Embodiment 2:

[0030] The material extraction component 6 includes a support frame 601, which is arranged at the bottom end of the filter box 701. A material extraction pump 602 is fixedly arranged inside the support frame 601. A feed inlet of the material extraction pump 602 is connected to a feed pipe 603. One end of the feed pipe 603 is connected to one side of the bottom end of the filter box 701. The support frame 601 supports the material extraction pump 602. When the staff starts the material extraction pump 602, the unfiltered materials and impurities remaining at the bottom of the inner wall of the filter box 701 can be extracted through the feed pipe 603 to prevent them from accumulating and causing blockage, thereby improving the filtering effect and being convenient to use.

[0031] A valve 605 is fixedly provided on one side of the feed pipe 603, and the discharge port of the pump 602 is connected to a discharge pipe 604. The valve 605 can prevent the material inside the filter box 701 from flowing into the feed pipe 603, and the impurities or residual materials can be discharged through the discharge pipe 604;

[0032] A collecting box 18 is fixedly provided at the top of the bottom plate 1, and one end of the discharge pipe 604 is placed just above the collecting box 18, so that impurities and residual materials are introduced into the collecting box 18 for unified treatment;

[0033] A support leg 17 is fixedly provided at the bottom end of the discharge hopper 15, and a support leg 2 19 is fixedly provided at one side of the bottom end of the conveying pipe 5. The extruder is tilted, and the support legs 17 and 19 provide support for the device. The tilted extruder facilitates the transportation of materials.

[0034] Specifically, the support frame 601 supports the extraction pump 602. When the staff starts the extraction pump 602, the unfiltered materials and impurities remaining at the bottom of the inner wall of the filter box 701 can be extracted through the feed pipe 603. The valve 605 can prevent the material inside the filter box 701 from flowing into the feed pipe 603. The discharge pipe 604 can be used to guide the impurities or residual materials into the collection box 18 for unified treatment, which can prevent them from accumulating and causing blockage, thereby improving the filtering effect and facilitating use.

[0035] When in use, the staff first opens the first sealing cover 13 to guide the material to be filtered into the inside of the feeding pipe 5 through the feeding hopper 12 and the conduit 8, and then starts the driving motor 10 and the electric heater 9. The transmission shaft of the driving motor 10 rotates to drive the conveying screw 14 to perform the conveying work, so as to convey the material inside the feeding pipe 5. The set electric heater 9 can appropriately increase the temperature to prevent the material from solidifying, which is beneficial to the transportation work. The material passes through the set filter plate 703 to filter the impurities inside it. The set first handle 704 is convenient for the staff to pull out the filter plate 703 for cleaning. The set card slot and card block 705 are convenient for fixing the filter plate 703 to prevent it from shaking during the filtering work and affecting the filtering effect. It is also convenient for the staff to install and disassemble the filter plate 703, which is convenient for cleaning the impurities filtered out of its surface. Finally, the second sealing cover 16 is opened to export the filtered material from the discharge hopper 15;

[0036] When it is necessary to clean the bottom of the inner wall of the filter box 701, the staff starts the extraction pump 602, and the unfiltered materials and impurities remaining at the bottom of the inner wall of the filter box 701 can be extracted through the set feed pipe 603. The set valve 605 can prevent the material inside the filter box 701 from flowing into the feed pipe 603. The set discharge pipe 604 can guide the impurities or residual materials to the collection box 18 for unified treatment, which can prevent them from accumulating and causing blockage, thereby improving the filtering effect and facilitating use.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter structure for a plastic extruder, comprising a bottom plate (1), characterized in that: A motor box (2) is provided on one side of the top of the bottom plate (1), a material delivery pipe (5) is provided in the middle of one side of the motor box (2), a filter assembly (7) is provided at one end of the material delivery pipe (5), and a material extraction assembly (6) is provided at the bottom end of the filter assembly (7); The filter assembly (7) comprises a filter box (701), the filter box (701) being arranged at the end of the feed pipe (5), a card slot being arranged at the bottom end of the inner wall of the filter box (701), the interior of the card slot being card-engaged and connected to the filter plate (703) via a card block (705); The material extraction component (6) includes a support frame (601), and the support frame (601) is arranged at the bottom end of the filter box (701). A material extraction pump (602) is provided inside the support frame (601). The feed inlet of the material extraction pump (602) is connected to a feed pipe (603), and one end of the feed pipe (603) is connected to one side of the bottom end of the filter box (701).

2. A filter structure for a plastic extruder according to claim 1, characterized in that: A through slot (702) is provided in the middle of the top end of the filter box (701), and a first handle (704) is provided in the middle of the top end of the filter plate (703).

3. A filter structure for a plastic extruder according to claim 1, characterized in that: A valve (605) is provided on one side of the feed pipe (603), and the discharge port of the feed pump (602) is connected to a discharge pipe (604).

4. A filter structure for a plastic extruder according to claim 3, characterized in that: A collecting box (18) is provided at the top of the bottom plate (1), and one end of the discharge pipe (604) is placed directly above the collecting box (18).

5. The filter structure of a plastic extruder according to claim 1, characterized in that: A driving motor (10) is provided inside the motor box (2), a transmission shaft of the driving motor (10) is connected to a conveying screw (14), the conveying screw (14) is arranged inside the conveying pipe (5), a lighting lamp (11) is provided at the top end of the inner wall of the motor box (2), a box door (4) is rotatably provided on one side of the front of the motor box (2), and a second handle (3) is provided in the middle of one side of the box door (4).

6. A filter structure for a plastic extruder according to claim 1, characterized in that: A conduit (8) is provided on one side of the top end of the feed pipe (5), an inlet hopper (12) is provided on the top end of the conduit (8), a first sealing cover (13) is threadedly connected to the top end of the inlet hopper (12), an electric heater (9) is provided on the surface of the feed pipe (5), a discharge hopper (15) is provided on one side of the filter box (701), and a second sealing cover (16) is threadedly connected to one end of the discharge hopper (15).

7. A filter structure for a plastic extruder according to claim 6, characterized in that: The bottom end of the discharge hopper (15) is provided with a support leg 1 (17), one side of the bottom end of the feed pipe (5) is provided with a support leg 2 (19), and the extruder is arranged in an inclined manner.

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