Quick replacement device for screw extrusion filter screen

Abstract

The utility model relates to a quick replacement device for a screw extrusion filter screen. First threaded holes are symmetrically formed in the peripheral surface of a connecting seat; second threaded holes are symmetrically formed in the peripheral surface of the transition seat; the first threaded hole and the second threaded hole are fixedly connected together through a butt joint bolt. A hinge shaft is inserted into the edge of the transition seat; a rotating shaft hole is formed in one end of the swing arm above the transition seat; the hinge shaft is movably inserted into the rotating shaft hole; a feeding hole penetrates through the center of the lower end of the connecting seat; a transition hole penetrates through the center of the transition seat; a sliding groove is formed in the bottom of the mounting seat; a conical hole is formed in the guide head; the conical hole is in through connection with the sliding groove; a discharge hole is formed in the upper end of the conical hole of the guide head; a filter screen is slidably mounted in a chute in the bottom of the mounting seat; the utility model can provide the quick replacement device for the screw extrusion filter screen, which does not need to be disassembled and assembled complexly, is convenient to clean and has high replacement efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field related to screw extrusion equipment, and in particular relates to a screw extrusion filter screen quick replacement device. Background Art

[0002] In the process of plastic product production and processing, the plastic granular raw materials need to be melted and transported to the feed end of the injection molding machine, and then the plastic products are produced through the mold. Screw extruders are often used in the above raw material melting and transportation. When the screw extrudes the material, crystal point substances are often produced when the plasticization is not good. At this time, it is necessary to use a filter to filter the generated crystal point substances to prevent them from entering the subsequent injection molding. However, when the filter is blocked by the material, it needs to be cleaned or replaced and repaired. Traditional technology requires frequent disassembly of multiple bolts at the installation site to perform the above cleaning or repair. The disassembly and replacement efficiency is low, which affects the overall work efficiency of the equipment. Therefore, it is necessary to develop a screw extrusion filter quick replacement device. Utility Model Content

[0003] The utility model aims to provide a screw extrusion filter screen quick replacement device which does not require complicated disassembly and assembly, is easy to clean and has high replacement efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screw extrusion filter screen quick replacement device, comprising a connecting seat, a transition seat, a mounting seat, a guide head, a first threaded hole, a second threaded hole, a docking bolt, a hinge shaft, a shaft hole, a swing arm, a feed port, a transition hole, a tapered hole, a discharge port, a filter screen and a slide groove, wherein the upper part of the connecting seat is docked with the transition seat; the upper part of the transition seat is mounted with the mounting seat; the upper part of the mounting seat is docked with the guide head; the surrounding surface of the connecting seat is symmetrically provided with first threaded holes; the surrounding surface of the transition seat is symmetrically provided with second threaded holes; the first threaded hole and the second threaded hole are symmetrically provided with a plurality of threaded holes. The upper and lower parts correspond to each other one by one; the first threaded hole and the second threaded hole are fixedly connected together by a butt bolt; a hinge shaft is inserted and installed at the edge of the transition seat; a rotating shaft hole is provided at one end of the swing arm above the transition seat; the hinge shaft is movably inserted and installed in the rotating shaft hole; a feed port is provided through the center of the lower end of the connecting seat; a transition hole is provided through the center of the transition seat; a slide groove is provided at the bottom of the mounting seat; a conical hole is machined inside the guide head; the conical hole and the slide groove are connected through; a discharge port is provided at the upper end of the conical hole of the guide head; a filter screen is slidably installed in the slide groove at the bottom of the mounting seat.

[0005] As a further improvement of the present invention, the connecting seat, transition seat and mounting seat all adopt a cylindrical structure.

[0006] As a further improvement of the present invention, the swing arm adopts a V-shaped overall structural design, and the swinging free end of the swing arm is processed into an arc-shaped end surface.

[0007] As a further improvement of the present invention, a heating ring is fitted on the outer peripheral surface of the connecting seat.

[0008] As a further improvement of the utility model, a heating ring is fitted on the outer peripheral surface of the material guiding head.

[0009] As a further improvement of the present invention, a positioning hole is provided at the bottom of the connecting seat.

[0010] As a further improvement of the utility model, an auxiliary hole is provided on the side of the material guiding head.

[0011] As a further improvement of the utility model, an operating hole is provided in the middle of the swing arm.

[0012] As a further improvement of the utility model, the surface of the filter screen is evenly processed with filter holes.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the technical solution provides a feed port on the connecting seat, a transition hole on the transition seat, and a tapered hole on the guide head, so that the material can be guided from the outside of the connecting seat and gradually extruded from the tapered hole of the guide head, which has the beneficial technical effect of gradually gathering the material and evenly extruding the material from the outside of the guide head to the material use place; the technical solution installs a filter screen in the slide groove, so that the technical effect of filtering and blocking the crystal point material produced in the plasticizing process by the filter screen can be achieved; the technical solution also provides a slide groove at the bottom of the mounting seat, and uses a swingable swing arm to install a hinge shaft, which has the beneficial technical effect of using the swing arm to push the new filter screen to be replaced into the middle of the slide groove when the filter screen needs to be replaced, thereby achieving the beneficial technical effect of pushing the old filter screen out and pushing the new filter screen to the central position, and the replacement device of the technical solution has the advantages of fast and convenient replacement operation and can realize efficient replacement and processing without complicated disassembly and assembly of various bolt structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall longitudinal section structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the overall transverse cross-sectional structure of the utility model.

[0016] Figure 3 It is a partial enlarged view of the filter screen of the utility model.

[0017] In the figure: 1. Connecting seat; 2. Transition seat; 3. Mounting seat; 4. Guide head; 5. First threaded hole; 6. Second threaded hole; 7. Docking bolt; 8. Articulated shaft; 9. Rotating shaft hole; 10. Swing arm; 11. Feed inlet; 12. Transition hole; 13. Conical hole; 14. Discharge port; 15. Filter screen; 16. Heating ring; 17. Positioning hole; 18. Auxiliary hole; 19. Operation hole; 20. Slide groove; 21. Filter hole. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figures 1 to 3 The utility model provides a technical solution: a screw extrusion filter screen quick replacement device, comprising a connecting seat 1, a transition seat 2, a mounting seat 3, a guide head 4, a first threaded hole 5, a second threaded hole 6, a docking bolt 7, a hinge shaft 8, a rotating shaft hole 9, a swing arm 10, a feed port 11, a transition hole 12, a tapered hole 13, a discharge port 14, a filter screen 15 and a slide 20, the upper part of the connecting seat 1 is docked with the transition seat 2; the upper part of the transition seat 2 is mounted with the mounting seat 3; the upper part of the mounting seat 3 is docked with the guide head 4; the surrounding surface of the connecting seat 1 is symmetrically provided with first threaded holes 5; the surrounding surface of the transition seat 2 is symmetrically provided with second threaded holes 6; the first threaded holes 5 and the second threaded holes 6 are symmetrically provided between the first threaded holes 5 and the second threaded holes 6 The first threaded hole 5 and the second threaded hole 6 are fixedly connected together by a butt bolt 7; a hinge shaft 8 is inserted and installed at the edge of the transition seat 2; a rotating shaft hole 9 is provided at one end of the swing arm 10 above the transition seat 2; the hinge shaft 8 is movably inserted and installed in the rotating shaft hole 9; a feed port 11 is provided through the center of the lower end of the connecting seat 1; a transition hole 12 is provided through the center of the transition seat 2; a slide groove 20 is provided at the bottom of the mounting seat 3; a tapered hole 13 is machined inside the guide head 4; the tapered hole 13 and the slide groove 20 are connected through; a discharge port 14 is provided at the upper end of the tapered hole 13 of the guide head 4; a filter screen 15 is slidably installed on the slide groove 20 at the bottom of the mounting seat 3.

[0020] The connecting seat 1, the transition seat 2 and the mounting seat 3 all adopt a cylindrical structure; the swing arm 10 adopts a V-shaped overall structural design, which makes it easy for the free end of the swing arm to penetrate into the required slide groove and then push the filter screen component that needs to be replaced. The length of the swinging free end of the filter screen is designed so that when it swings to the lowermost position, the pushed filter screen component is just in the center of the slide groove. The swinging free end of the swing arm 10 is processed into an arc-shaped end face, which is convenient for clamping with the arc of the side wall of the filter screen that is in contact with the subsequent swing, thereby increasing the mutual contact area.

[0021] The outer circumference of the connection seat 1 is fitted with a heating ring 16; the outer circumference of the guide head 4 is fitted with a heating ring 16, which can be used to keep the plasticized material flowing inside warm or further heat it to the required temperature; the bottom of the connection seat 1 is provided with a positioning hole 17, which can facilitate the rapid and accurate docking of the replacement device as a whole to the external device. The side of the guide head 4 is provided with an auxiliary hole 18, which can be moved or rotated to adjust the position using an external threaded rod; the middle of the swing arm 10 is provided with an operating hole 19, which can be inserted into the operating rod body for swinging operation when swinging operation is required. The lever principle can reduce the labor intensity of manual operation and avoid accidents of clamping and collision of manual fingers; the surface of the filter screen 15 is evenly processed with filter holes 21, and the corresponding aperture design can be carried out according to the type of filtered debris, so as to block the impurities on the outside of the filter screen and prevent them from entering the subsequent injection molding material.

[0022] When the filter holes of the filter are clogged or the filter is damaged and needs to be replaced, the swing arm in the device is used to swing the old filter in the center of the original chute and push the new filter component to be replaced into place, so that the filter component can be replaced quickly and efficiently.

[0023] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A screw extrusion filter screen quick replacement device, characterized in that: The invention comprises a connecting seat (1), a transition seat (2), a mounting seat (3), a guide head (4), a first threaded hole (5), a second threaded hole (6), a butt bolt (7), a hinge shaft (8), a rotating shaft hole (9), a swing arm (10), a feed port (11), a transition hole (12), a conical hole (13), a discharge port (14), a filter screen (15) and a slide groove (20), wherein the upper part of the connecting seat (1) is butt-jointed with the transition seat (2); the upper part of the transition seat (2) is mounted with the mounting seat (3); the upper part of the mounting seat (3) is butt-jointed with the guide head (4); the surrounding surface of the connecting seat (1) is symmetrically provided with first threaded holes (5); the surrounding surface of the transition seat (2) is symmetrically provided with second threaded holes (6); the first threaded holes (5) and the second threaded holes (6) are in one-to-one correspondence with each other; the first threaded holes ( 5) and the second threaded hole (6) are fixedly connected together by a butt bolt (7); a hinge shaft (8) is inserted and installed at the edge of the transition seat (2); a rotating shaft hole (9) is opened at one end of the swing arm (10) above the transition seat (2); the hinge shaft (8) is movably inserted and installed in the rotating shaft hole (9); a feed inlet (11) is opened through the center of the lower end of the connecting seat (1); a transition hole (12) is opened through the center of the transition seat (2); a slide groove (20) is opened at the bottom of the mounting seat (3); a conical hole (13) is machined inside the guide head (4); the conical hole (13) and the slide groove (20) are connected through; a discharge port (14) is set at the upper end of the conical hole (13) of the guide head (4); a filter screen (15) is slidably installed in the slide groove (20) at the bottom of the mounting seat (3).

2. A screw extrusion filter screen quick replacement device according to claim 1, characterized in that: The connecting seat (1), the transition seat (2) and the mounting seat (3) all have a cylindrical structure.

3. The screw extrusion filter screen quick replacement device according to claim 1, characterized in that: The swing arm (10) adopts a V-shaped overall structural design, and the swing free end of the swing arm (10) is processed into an arc-shaped end surface.

4. The screw extrusion filter screen quick replacement device according to claim 1, characterized in that: A heating ring (16) is fitted onto the outer peripheral surface of the connection seat (1).

5. The screw extrusion filter screen quick replacement device according to claim 1, characterized in that: A heating ring (16) is fitted onto the outer peripheral surface of the material guiding head (4).

6. The screw extrusion filter screen quick replacement device according to claim 1, characterized in that: A positioning hole (17) is provided at the bottom of the connecting seat (1).

7. The screw extrusion filter screen quick replacement device according to claim 1, characterized in that: An auxiliary hole (18) is provided on the side of the material guiding head (4).

8. The screw extrusion filter screen quick replacement device according to claim 1, characterized in that: An operating hole (19) is provided in the middle of the swing arm (10).

9. The screw extrusion filter screen quick replacement device according to claim 1, characterized in that: The surface of the filter screen (15) is uniformly processed with filter holes (21).

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