Extruder die assembly

Abstract

The utility model relates to a die assembly of an extruder. The die assembly comprises a die base body, the filter screen is arranged in the middle of the mouth mold base body; and the pressing piece is detachably connected with the mouth mold base body and used for pressing and fixing the filter screen in an abutting mode. According to the extrusion die assembly, the pressing piece is detachably connected to the extrusion die base body and used for pressing and fixing the filter screen, so that the filter screen is not prone to deformation during production and discharging of the extrusion die assembly, the pressing piece is detachably installed, and the extrusion die assembly is simple and easy to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical auxiliary equipment, and particularly relates to an extrusion die head assembly. Background Art

[0002] In the prior art, for the die head assembly used in an extruder, due to the long-term external force acting on the internal filter screen, the filter screen is prone to deformation during the extrusion process, thereby affecting the material discharge and production efficiency. Content of the Utility Model

[0003] The purpose of the utility model is to provide an extrusion die head assembly, which solves the problem that the filter screen is prone to deformation during the material discharge process of the die head assembly, and improves the material discharge efficiency and production yield.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] The utility model provides an extrusion die head assembly, including:

[0006] A die head base;

[0007] A filter screen, which is arranged inside the middle of the die head base;

[0008] A pressing member, which is detachably connected to the die head base for pressing and fixing the filter screen.

[0009] Further, the filter screen is integrally arranged / detachably arranged with the die head base.

[0010] Further, the pressing member is in the shape of a frustum with openings at both the upper and lower ends.

[0011] Further, the pressing member includes a pressing end and a free end, and the diameter of the pressing end is less than or equal to the diameter of the free end.

[0012] Further, a plurality of key teeth are arranged at the edge of the pressing end, and the key teeth are connected to the key grooves inside the die head base.

[0013] Further, the inner diameter of the pressing end is equal to the diameter of the filter screen.

[0014] Further, a plurality of positioning holes are provided at the edge of the die head base for fixing the die head assembly to the extruder.

[0015] Further, the positioning holes are threaded holes, and the threaded holes are in threaded cooperation with screws for fixing the die head assembly to the extruder.

[0016] Further, the positioning holes are positioning pin holes, and the positioning pin holes are in cooperation with positioning pins for fixing the die head assembly to the extruder.

[0017] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0018] A die head assembly of an extruder according to the utility model is provided with a pressing member detachably connected to a die head base body for pressing and fixing a filter screen, so that when the die head assembly discharges materials during production, the filter screen is not easily deformed, and the pressing member is detachably installed, and the device is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Some specific embodiments of the utility model will be described in detail hereinafter with reference to the accompanying drawings in an illustrative and non-limiting manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0020] Figure 1 is a top view of a die head assembly of an extruder provided by the utility model;

[0021] Figure 2 is a schematic structural view of a pressing member in a die head assembly of an extruder provided by the utility model;

[0022] Figure 3 is Figure 2 a bottom view of;

[0023] Figure 4 is a schematic view of the combination of a pressing member and a die head base in a die head assembly of an extruder provided by the utility model.

[0024] Among them, the reference numerals are explained as follows:

[0025] 1. Die head base body; 2. Filter screen; 3. Pressing member; 301. Pressing end; 3010. Key teeth; 302. Free end; 4. Positioning hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solution of the utility model will be described clearly and completely hereinafter with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0027] Referring to Figure 1 , the die head assembly of an extruder in the utility model includes a die head base body 1, a filter screen 2 arranged inside the middle of the die head base body 1, and a pressing member 3 detachably connected to the die head base body 1 and in pressing contact with the aforementioned filter screen 2.

[0028] Specifically, the die base 1 is used to accommodate and carry the aforementioned filter screen 2 and the pressing member 3. In the embodiment of the present utility model, there are various connection methods between the die base 1 and the filter screen 2.

[0029] One is that a placement groove for placing the filter screen 2 can be opened inside the middle of the die base 1 to support the filter screen 2, so that the filter screen 2 can be disassembled from the die base 1 for easy replacement and cleaning. Moreover, the mesh number of the filter screen 2 can be reasonably selected or adjusted according to the actual situation, which is suitable for the production of materials with multiple diameters. In addition, it should be noted that the cross-sectional width of the above placement groove should be adapted to the thickness of the filter screen 2 to prevent materials from leaking into the connection between the die base 1 and the filter screen 2 or other narrow gaps during the production and extrusion process, reducing the material yield while increasing the cleaning difficulty of the die assembly, and avoiding the position offset of the filter screen 2 in the placement groove to ensure the stability of the filter screen 2 during extrusion.

[0030] The second is to directly integrally set the filter screen 2 and the die base 1 to avoid the situation where materials leak into the connection between the filter screen 2 and the die base 1 during the extrusion process, affecting the material yield and making it difficult to clean the connection. By using the integral setting, it can also be ensured that the filter screen 2 will not be displaced due to the action of strong external forces during the material extrusion process, affecting the material discharge yield. However, the integral setting is only applicable to the production of materials with a specific diameter. If it is necessary to produce materials with other diameters, it is still necessary to use the die assembly corresponding to the other diameter for production.

[0031] Regarding the above-mentioned pressing member 3, it is in the shape of a frustum with openings at both the upper and lower ends, including a pressing end 301 and a free end 302. The pressing end 301 abuts against one side of the aforementioned filter screen 2, and the free end 302 is for facilitating the disassembly of the pressing member 3 from the die base 1. In the embodiment of the present utility model, the diameter of the pressing end 301 is set to be smaller than the diameter of the free end 302, that is, the pressing end 301 extends towards the free end 302 in a flared shape. Of course, the diameter of the pressing end 301 can also be set to be equal to the diameter of the free end 302, and thus the shape of the pressing member 3 will be adjusted to a cylindrical shape with openings at both the upper and lower ends. No matter what shape the pressing member 3 is arranged in, as long as it can be adapted to the corresponding die assembly and play a stabilizing role on the filter screen 2.

[0032] Moreover, in the embodiment of the present utility model, the inner diameter of the aforementioned pressing end 301 is set to be adapted to the diameter of the filter screen 2 to ensure that materials will not leak into narrow gaps, affecting production and cleaning.

[0033] In addition, in the embodiment of the present utility model, the pressing member 3 and the die base 1 are arranged to be detachably connected. There are various ways of detachable connection. For example, a number of key teeth can be provided at the edge of the pressing end of the pressing member 3, which are adapted to the key grooves inside the die base 1 to realize the connection between the pressing member 3 and the die base 1. Of course, it can also be that threads are provided on the side of the pressing member 3, and threads are also provided at the connection between the die base 1 and the pressing member 3, and the connection between the pressing member 3 and the die base 1 is realized by the threading of the pressing member 3 and the die base 1. It is not limited to the above-described detachable connection methods, and other methods can also be adopted, as long as the pressing member 3 and the die base 1 can be set to be detachably connected, and the connection is to ensure that the pressing member 3 and the die base 1 will not become loose.

[0034] In the embodiment of the present utility model, a number of positioning holes 4 are provided at the edge of the above-mentioned die base 1. The positioning holes 4 are used to fix the overall die assembly on the extruder to ensure the stability during the pressing process.

[0035] The above-mentioned positioning holes 4 can be set as threaded holes, and the threaded holes are in threaded cooperation with the screw to realize the fixation of the overall die assembly. Of course, other methods can also be adopted to fix the positioning holes 4, as long as the effect of stabilizing the overall die can be achieved. For example, the positioning holes 4 can also be set as positioning pin holes, and the above-mentioned die assembly is fixed by combining with positioning pins. During actual assembly, it is not limited to using the above methods to fix the overall die assembly.

[0036] In summary, for the extruder die assembly disclosed in the present utility model, the pressing member is stably matched with the die base and the filter screen, so as to ensure that the position of the filter screen does not shift and the filter screen does not deform during the production process. The device has a simple structure, strong adaptability, and simple operation.

[0037] The above embodiments are only used to illustrate the technical concept and characteristics of the present utility model, and their purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it accordingly. It cannot be used to limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. An extruder die assembly, characterized in that, Comprising: Die base (1); Filter screen (2), which is arranged inside the middle of the die base (1); Pressing member (3), which is detachably connected to the die base (1) for pressing and fixing the filter screen (2).

2. The extruder die assembly according to claim 1, characterized in that, The filter screen (2) is integrally arranged / detachably arranged with the die base (1).

3. The extruder die assembly according to claim 1, characterized in that, The pressing member (3) is in the shape of a frustum with openings at both the upper and lower ends.

4. The extrusion die assembly according to claim 3, characterized in that, The pressing member (3) includes a pressing end (301) and a free end (302), and the diameter of the pressing end (301) is less than or equal to the diameter of the free end (302).

5. An extruder die assembly according to claim 4, wherein, A number of key teeth (3010) are arranged at the edge of the pressing end (301), and the key teeth (3010) are connected to the key grooves inside the die base (1).

6. The extruder die assembly according to claim 4, characterized in that, The inner diameter of the pressing end (301) is equal to the diameter of the filter screen (2).

7. The extruder die assembly according to claim 1, characterized in that, A number of positioning holes (4) are provided at the edge of the die base (1) for fixing the die assembly to an extruder.

8. An extruder die assembly according to claim 7, characterized in that, The positioning holes (4) are threaded holes, and the threaded holes are in threaded cooperation with screws for fixing the die assembly to an extruder.

9. The extruder die assembly according to claim 7, characterized in that, The positioning holes (4) are dowel pin holes, and the dowel pin holes are in cooperation with dowel pins for fixing the die assembly to an extruder.

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