Anti-adhesion device of screw extruder

Abstract

The utility model relates to the technical field of screw extruders, in particular to an anti-adhesion device of a screw extruder, which comprises a support frame, and adjusting bolts are mounted at two ends of the outside of the support frame. A threaded rod rotates to synchronously drive a supporting block to move so as to drive a scraping plate to be close to a roller at the extrusion position of the screw extruder, materials adhering to the roller can be scraped conveniently, a handle is pulled outwards to drive a movable rod to move, and when the movable rod moves, the movable rod synchronously drives a fixed plate to move and compresses a reset spring; and therefore, one end, far away from the handle, of the movable rod is moved out from the interior of the limiting hole, so that the connecting seat can be conveniently taken out from the bottom of the supporting plate, and the problem that the extrusion of the screw extruder is inconvenient due to the fact that materials are easily adhered to a roller at the extrusion part of a traditional screw extruder is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of screw extruders, and specifically relates to an anti-adhesion device for a screw extruder. Background Technique

[0002] As an important industrial equipment, the screw extruder plays an irreplaceable role in multiple fields by virtue of its unique working principle and wide applicability. The screw extruder is most widely used in the field of plastic molding and is an important equipment for producing various plastic products. Whether it is food packaging bags, water pipes, wires and cables, or various plastic fittings and containers, they all rely on the contribution of the screw extruder. It can precisely control the shape, size and extrusion pressure of the extrusion port and other parameters to achieve precise control of the finished material, thereby producing plastic products with excellent quality and precise dimensions. The working principle of the screw extruder is relatively simple and efficient. After the material enters the screw extrusion barrel from the feeding port, it is gradually pushed forward and extruded out of the barrel under the rotation and extrusion of the screw. However, the roller at the extrusion part of the traditional screw extruder is prone to sticking materials, resulting in inconvenient extrusion of the screw extruder, and thus reducing the production efficiency. Moreover, the materials stuck on the roller are inconvenient to clean, so there are certain drawbacks.

[0003] In summary, the utility model solves the existing problems by designing an anti-adhesion device for a screw extruder. Content of the Utility Model

[0004] The purpose of the utility model is to provide an anti-adhesion device for a screw extruder to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution:

[0006] An anti-adhesion device for a screw extruder includes a support frame. Both ends of the outside of the support frame are installed with adjusting bolts. One end of the adjusting bolt is installed with a limiting plate. Multiple arc-shaped convex blocks are installed on the outer side surface of the limiting plate. A threaded rod is installed on the outer side surface of the support frame. One end of the threaded rod is installed with a turntable. The end of the threaded rod far from the turntable is installed with a support block. Limiting rods are symmetrically installed on both sides of the threaded rod on the outer side surface of the support block. Connecting rods are symmetrically installed at both ends of the bottom of the limiting rod. A support plate is jointly installed at the bottom of the connecting rods;

[0007] At both ends of the bottom of the support plate, fixing blocks are symmetrically installed. A connecting seat is installed at the bottom of the support plate and between the two fixing blocks. Limiting holes are opened at both outer ends of the connecting seat. A scraping plate is installed at the bottom of the connecting seat. A handle is installed on the outer side of the fixing block away from the connecting seat. A cavity is opened inside the fixing block. A movable rod is installed between the two inner side walls of the cavity. A return spring is installed on the outer ring surface of the movable rod. A fixing plate is installed on the outer ring surface of the movable rod and close to the return spring.

[0008] As a preferred solution of the present utility model, one end of the adjusting bolt passes through the support frame and is rotatably connected to the outer side surface of the limiting plate, and the outer ring surface of the adjusting bolt is threadedly connected to the inside of the support frame.

[0009] As a preferred solution of the present utility model, the end of the threaded rod away from the turntable passes through the support frame and is rotatably connected to the outer side surface of the support block, and the outer ring surface of the threaded rod is threadedly connected to the inside of the support frame.

[0010] As a preferred solution of the present utility model, the end of the limiting rod away from the support block passes through the support frame and extends to the outside of the support frame, and the outer ring surface of the limiting rod is slidably connected to the inside of the support frame.

[0011] As a preferred solution of the present utility model, one end of the movable rod passes through the outside of the fixing block and is connected to the handle. The end of the movable rod away from the handle passes through the return spring and then through the fixing plate and extends to the outside of the fixing block and is inserted into the limiting hole.

[0012] As a preferred solution of the present utility model, the size of the outer ring surface of the movable rod matches the size of the inner side wall of the limiting hole, and the outer ring surface of the movable rod is slidably connected to the inner side wall of the limiting hole.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. In the present utility model, by designing an anti-adhesion device for a screw extruder, rotating the turntable drives the threaded rod to rotate. The rotation of the threaded rod synchronously drives the support block to move, thereby driving the scraping plate to approach the roller at the extrusion part of the screw extruder, facilitating the scraping of the adhered material on the roller. By pulling the handle outwards, the movable rod is driven to move. When the movable rod moves, the fixing plate is synchronously driven to move and the return spring is compressed, so that the end of the movable rod away from the handle moves out of the limiting hole, thereby facilitating the removal of the connecting seat from the bottom of the support plate, effectively solving the problem that the roller at the extrusion part of the traditional screw extruder is prone to adhesion of materials, resulting in inconvenient extrusion of the screw extruder. Description of the Drawings

[0015] Figure 1Schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 The present utility model Figure 1 Top view schematic diagram of the structure;

[0017] Figure 3 The present utility model Figure 1 Schematic diagram of the hierarchical structure;

[0018] Figure 4 The present utility model Figure 3 Internal schematic diagram of part of the structure.

[0019] In the figure: 1, support frame; 2, adjusting bolt; 3, limiting plate; 4, arc-shaped convex block; 5, threaded rod; 6, turntable; 7, support block; 8, limiting rod; 9, connecting rod; 10, support plate; 11, fixing block; 1101, cavity; 12, connecting seat; 1201, limiting hole; 13, scraping plate; 14, handle; 15, movable rod; 16, return spring; 17, fixing plate. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively with reference to the relevant drawings. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] For the embodiments, please refer to Figures 1-4 , this utility model provides a technical solution:

[0025] An anti-sticking device for a screw extruder, comprising a support frame 1. Both outer ends of the support frame 1 are provided with adjusting bolts 2. One end of the adjusting bolt 2 is provided with a limiting plate 3. A plurality of arc-shaped convex blocks 4 are installed on the outer side surface of the limiting plate 3. A threaded rod 5 is installed on the outer side surface of the support frame 1. One end of the threaded rod 5 is provided with a turntable 6. The end of the threaded rod 5 far from the turntable 6 is provided with a support block 7. Limiting rods 8 are symmetrically installed on both sides of the threaded rod 5 on the outer side surface of the support block 7. Connecting rods 9 are symmetrically installed at both bottom ends of the limiting rods 8. A support plate 10 is jointly installed at the bottom of the connecting rods 9;

[0026] Fixing blocks 11 are symmetrically installed at both bottom ends of the support plate 10. A connecting seat 12 is installed between the two fixing blocks 11 at the bottom of the support plate 10. Limiting holes 1201 are opened at both outer ends of the connecting seat 12. A scraping plate 13 is installed at the bottom of the connecting seat 12. A handle 14 is installed on the outer side surface of the fixing block 11 far from the connecting seat 12. A cavity 1101 is opened inside the fixing block 11. A movable rod 15 is installed between the two inner side walls of the cavity 1101. A return spring 16 is installed on the outer ring surface of the movable rod 15. A fixing plate 17 is installed on the outer ring surface of the movable rod 15 and close to the return spring 16.

[0027] Specifically, refer to Figure 1 , the end of the threaded rod 5 far from the turntable 6 penetrates through the support frame 1 and is rotatably connected to the outer side surface of the support block 7, and the outer ring surface of the threaded rod 5 is threadedly connected to the inside of the support frame 1, so as to ensure that by rotating the turntable 6, the threaded rod 5 is driven to rotate, and the threaded rod 5 rotates to synchronously drive the support block 7 to move, thereby driving the scraping plate 13 close to the roller at the extrusion part of the screw extruder, facilitating the scraping of the adhered material on the roller.

[0028] Furthermore, one end of the adjusting bolt 2 penetrates through the support frame 1 and is rotatably connected to the outer side surface of the limiting plate 3, and the outer ring surface of the adjusting bolt 2 is threadedly connected to the inside of the support frame 1, so as to ensure that by rotating the adjusting bolt 2, the limiting plate 3 is driven to move along the inner side wall of the support frame 1 to fix the device above the extrusion part of the screw extruder. By providing the arc-shaped convex blocks 4, the friction between the limiting plate 3 and the screw extruder is increased.

[0029] Further, one end of the limiting rod 8 away from the supporting block 7 penetrates through the supporting frame 1 and extends to the outside of the supporting frame 1, and the outer ring surface of the limiting rod 8 is slidably connected to the inside of the supporting frame 1, so as to ensure that the movement of the two limiting rods 8 on the supporting frame 1 increases the stability of the movement of the supporting block 7 driven by the rotation of the threaded rod 5.

[0030] Further, the size of the outer ring surface of the movable rod 15 matches the size of the inner side wall of the limiting hole 1201, and the outer ring surface of the movable rod 15 is slidably connected to the inner side wall of the limiting hole 1201, so as to ensure that by inserting the movable rod 15 into the limiting hole 1201, it is convenient to fix the connecting seat 12 at the bottom of the supporting plate 10 and between the two fixing blocks 11.

[0031] Specifically, referring to Figure 3 and Figure 4 , one end of the movable rod 15 penetrates to the outside of the fixing block 11 and is connected to the handle 14. The end of the movable rod 15 away from the handle 14 passes through the return spring 16, then penetrates through the fixing plate 17 and extends to the outside of the fixing block 11 and is inserted into the limiting hole 1201. Thus, it is ensured that by pulling the handle 14 outwards, the movable rod 15 is driven to move. When the movable rod 15 moves, the fixing plate 17 is synchronously driven to move and the return spring 16 is compressed, so that the end of the movable rod 15 away from the handle 14 moves out of the limiting hole 1201, thus facilitating the removal of the connecting seat 12 from the bottom of the supporting plate 10. The disassembly and assembly are convenient, and it is convenient to disassemble and clean after long-term use.

[0032] The working process of the present utility model: When using a sticky prevention device for a screw extruder designed by this solution, during the use of the screw extruder, first, by rotating the adjusting bolt 2, the limiting plate 3 is driven to move along the inner side wall of the supporting frame 1 to fix the device above the extrusion part of the screw extruder. By providing the arc-shaped convex block 4, the friction between the limiting plate 3 and the screw extruder is increased. By rotating the turntable 6, the threaded rod 5 is driven to rotate, and the rotation of the threaded rod 5 synchronously drives the supporting block 7 to move, thereby driving the scraper 13 close to the roller at the extrusion part of the screw extruder, facilitating the scraping of the sticky material on the roller. The movement of the two limiting rods 8 on the supporting frame 1 increases the stability of the movement of the supporting block 7 driven by the rotation of the threaded rod 5. By pulling the handle 14 outwards, the movable rod 15 is driven to move. When the movable rod 15 moves, the fixing plate 17 is synchronously driven to move and the return spring 16 is compressed, so that the end of the movable rod 15 away from the handle 14 moves out of the limiting hole 1201, thus facilitating the removal of the connecting seat 12 from the bottom of the supporting plate 10. The disassembly and assembly are convenient, and it is convenient to disassemble and clean after long-term use.

[0033] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A screw extruder anti-adhesion device, comprising a support frame (1), characterized in that: Both ends of the support frame (1) are provided with adjusting bolts (2), one end of the adjusting bolt (2) is provided with a limit plate (3), the outer side surface of the limit plate (3) is provided with a plurality of arc-shaped protrusions (4), a threaded rod (5) is provided with a turntable (6) at one end of the threaded rod (5), a support block (7) is provided with an end of the threaded rod (5) away from the turntable (6), and limit rods (8) are symmetrically provided on the outer side surface of the support block (7) and on both sides of the threaded rod (5), connecting rods (9) are symmetrically provided at both ends of the bottom of the limit rod (8), and a support plate (10) is provided at the bottom of the connecting rod (9); Fixed blocks (11) are symmetrically mounted at both ends of the bottom of the support plate (10); a connecting seat (12) is mounted at the bottom of the support plate (10) and between the two fixed blocks (11); both ends of the outside of the connecting seat (12) are provided with limit holes (1201); a scraper (13) is mounted at the bottom of the connecting seat (12); a handle (14) is mounted on the outside of the fixed block (11) on a side away from the connecting seat (12); a cavity (1101) is formed inside the fixed block (11); a movable rod (15) is mounted between two side walls inside the cavity (1101); a return spring (16) is mounted on the outer annular surface of the movable rod (15); and a fixing plate (17) is mounted on the outer annular surface of the movable rod (15) and close to the return spring (16).

2. The anti-adhesion device for a screw extruder according to claim 1, characterized in that: One end of the adjusting bolt (2) passes through the support frame (1) and is rotatably connected to the outer side surface of the limiting plate (3), and the outer ring surface of the adjusting bolt (2) is threadedly connected to the inside of the support frame (1).

3. The anti-adhesion device for a screw extruder according to claim 1, characterized in that: One end of the threaded rod (5) away from the turntable (6) passes through the support frame (1) and is rotatably connected to the outer side surface of the support block (7), and the outer annular surface of the threaded rod (5) is threadedly connected to the inside of the support frame (1).

4. The anti-adhesion device for a screw extruder according to claim 1, characterized in that: One end of the limiting rod (8) away from the supporting block (7) passes through the supporting frame (1) and then extends to the outside of the supporting frame (1), and the outer annular surface of the limiting rod (8) is slidably connected to the inside of the supporting frame (1).

5. The anti-adhesion device for a screw extruder according to claim 1, characterized in that: One end of the movable rod (15) passes through the outside of the fixed block (11) and is connected to the handle (14); the end of the movable rod (15) away from the handle (14) passes through the return spring (16) and then passes through the fixed plate (17), and then extends to the outside of the fixed block (11) and is connected to the inside of the limiting hole (1201).

6. The anti-adhesion device for a screw extruder according to claim 1, characterized in that: The size of the outer ring surface of the movable rod (15) matches the size of the inner wall of the limiting hole (1201), and the outer ring surface of the movable rod (15) is slidably connected to the inner wall of the limiting hole (1201).

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