Plastic extruder head

Abstract

The utility model relates to the technical field of extruders, and discloses a plastic extruder head which comprises a first die head and a second die head, the side end of the first die head is provided with an annular step, the side end of the first die head is provided with the second die head, the side end of the annular step is provided with a plurality of slots, and the slots are communicated with the first die head and the second die head. An annular step is arranged on the annular plate, a filtering mechanism is arranged at the side end of the annular step, the filtering mechanism comprises a filtering assembly and a plurality of mounting assemblies, and a plurality of mounting assemblies used for mounting the filtering assembly are arranged at the side end of the filtering assembly. And when the first die head and the second die head shake during installation, the situation that the annular plate and the filter plate are separated from the annular step or displace can be avoided, so that the annular flange is matched for use, the installation and fixing effect on the filter plate can be improved, and meanwhile, the installation efficiency of the first die head and the second die head is prevented from being influenced.

Description

Technical Field

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

[0002] The plastic extruder head is a component used to extrude molten plastic into the desired shape.

[0003] The existing patent application number CN202221563139.3 discloses a head of a plastic extruder, which includes: a first die head, a second die head and a filtering assembly, the first die head and the second die head cover each other and are fixedly connected by a plurality of fasteners, and the first die head and the second die head form a storage cavity; the filtering assembly is arranged in the storage cavity and is fixedly connected to the inner wall of the head; a feed port is provided on the side of the first die head facing away from the second die head, and a discharge port is provided on the side of the second die head facing away from the first die head; the molten plastic enters the storage cavity from the feed port, passes through the filtering assembly, and is subsequently extruded from the discharge port; since the first die head and the second die head are fixedly connected by fasteners, the convenience of the separate design and the assembly stability are taken into account, and at the same time, the influence of the extrusion stress on the connection stability of the first die head and the second die head can be dispersed. Therefore, the head of the plastic extruder of the present application has the effects of low internal extrusion loss and long service life.

[0004] The above scheme has the following shortcomings during implementation: after the filter plate is placed in the annular step, the filter plate is not limited or fixed. Therefore, if shaking occurs during installation between the first die head and the second die head, the filter plate may be separated from the annular step or displaced within the annular step, thereby affecting the installation and fixing effect of the filter plate and the installation efficiency of the first die head and the second die head. Therefore, a plastic extruder head is needed to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a plastic extruder head to solve the problem in the prior art that after the filter plate is placed in the annular step, the filter plate is not limited or fixed, resulting in shaking when the first die head and the second die head are installed, which will cause the filter plate to separate from the annular step or be displaced in the annular step, thereby affecting the installation and fixing effect of the filter plate and the installation efficiency of the first die head and the second die head.

[0006] The utility model provides the following technical solution: a plastic extruder head, comprising a first die head and a second die head, the side end of the first die head is provided with an annular step, the side end of the first die head is installed with the second die head, the side end of the annular step is provided with a plurality of slots, the side end of the annular step is provided with a filtering mechanism, the filtering mechanism comprises a filtering component and a plurality of mounting components, and the side end of the filtering component is provided with a plurality of mounting components for installing the filtering component.

[0007] As a preferred embodiment of the above technical solution, the filter assembly includes a filter plate, the side end of the filter plate is fixedly connected to a ring plate, the left and right side ends of the ring plate are provided with installation grooves, the side end of each installation groove is provided with a side groove, and several installation assemblies are respectively located in each installation groove.

[0008] As a preferred embodiment of the above technical solution, the installation assembly includes a plurality of springs, wherein the plurality of springs are fixedly connected to the inner side ends of the installation slots, and an insert plate is fixedly connected between the side ends of the plurality of springs.

[0009] As a preferred embodiment of the above technical solution, side ends of the plug plates are fixedly connected with pull plates, and the pull plates are located in side grooves.

[0010] As a preferred embodiment of the above technical solution, the side end of the plug board is arranged in a slope shape, and the plug board is adapted to the slot.

[0011] As a preferred embodiment of the above technical solution, a feed port is provided at a side end of the first die head, and an output pipe is fixedly connected to the side end of the first die head.

[0012] As a preferred embodiment of the above technical solution, an annular flange is fixedly connected to the side end of the second die head, and a molding module is fixedly connected to the side end of the second die head.

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

[0014] The utility model inserts the filter plate toward the annular step through the arrangement of the filter assembly and the installation assembly. At this time, the filter plate is located in the feed port, and the annular plate is located in the annular step. Since the side end of the insert plate is arranged in an arc shape, when the annular plate passes through the first die head close to the side end of the annular step, the side end will be pressed to make the insert plate move toward the inside of the installation slot. At this time, the insert plate will press the spring to shrink. Then, when the annular plate is installed into the annular step, the insert plate passes the position of the slot. At this time, the spring will rebound against the insert plate, making the insert plate inserted into the slot, thereby limiting and fixing the annular plate and the filter plate. When shaking occurs during installation between the first die head and the second die head, the annular plate and the filter plate can be prevented from detaching from the annular step or being displaced, which can avoid affecting the installation and fixing effect of the filter plate. The use of the installation assembly in conjunction with the annular flange improves the installation and fixing effect of the filter plate, and at the same time avoids affecting the installation efficiency of the first die head and the second die head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the three-dimensional decomposition structure of a plastic extruder head Figure 1 ;

[0016] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of a filter plate of a plastic extruder die head;

[0017] Figure 3 for Figure 1 A is a schematic diagram of the partially enlarged structure of the middle part;

[0018] Figure 4 A schematic diagram of the three-dimensional decomposition structure of a plastic extruder head Figure 2 .

[0019] In the figure: 1, output pipe; 2, first die head; 201, feed port; 202, annular step; 203, slot; 4, filter plate; 401, annular plate; 402, mounting groove; 403, side groove; 5, spring; 501, plug plate; 502, pull plate; 6, second die head; 601, annular flange; 602, molding module. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] like Figure 1-4As shown, the utility model provides a technical solution: a plastic extruder head, including a first die head 2 and a second die head 6, a feed port 201 is provided at the side end of the first die head 2, an output pipe 1 is fixedly connected to the side end of the first die head 2, a position in the output pipe 1 for conveying materials to the feed port 201, an annular step 202 is provided at the side end of the first die head 2, a second die head 6 is installed at the side end of the first die head 2, an annular flange 601 is fixedly connected to the side end of the second die head 6, a molding module 602 is fixedly connected to the side end of the second die head 6, a plurality of slots 203 are provided at the side end of the annular step 202, a filtering mechanism is provided at the side end of the annular step 202, and the material is filtered after passing through the filtering mechanism from the position of the feed port 201. Function, and at the same time reduce the extrusion stress of the material on the filtering mechanism. The filtering mechanism includes a filtering assembly and a plurality of mounting assemblies. The side end of the filtering assembly is provided with a plurality of mounting assemblies for installing the filtering assembly. The setting of the mounting assembly can facilitate the installation of the filtering assembly in the annular step 202, and can preliminarily limit and fix the filtering assembly. When the first die head 2 and the second die head 6 are installed, shaking occurs, which can prevent the filtering assembly from being separated from the annular step 202 or being displaced, and can avoid affecting the installation and fixing effect of the filter plate 4. The use of the mounting assembly in conjunction with the annular flange 601 improves the installation and fixing effect of the filter plate 4, and at the same time avoids affecting the installation efficiency of the first die head 2 and the second die head 6.

[0022] As an implementation method in this embodiment, Figure 1 and Figure 2 As shown, the filter assembly includes a filter plate 4, a side end of the filter plate 4 is fixedly connected to an annular plate 401, and a filter screen is installed on the annular end surface of the annular plate 401. The filter screen is supported by the arrangement of the filter plate 4 and the annular plate 401. The filter plate 4 can reduce the extrusion stress of the material, so that the probability of the filter screen being squeezed and broken when the material passes through the filter screen is reduced. The left and right side ends of the annular plate 401 are provided with mounting grooves 402, and the side end of each mounting groove 402 is provided with a side groove 403. Several mounting assemblies are respectively located in each mounting groove 402. The mounting assembly includes several springs 5, and the several springs 5 ​​are fixedly connected to the inner side ends of the mounting grooves 402. A plug plate 501 is fixedly connected between the side ends of the several springs 5. The side ends of the plug plate 501 are fixedly connected to the pull plate 502, and the pull plate 502 is located in the side groove 403. The side end of the plug plate 501 is arranged in a slope shape, and the plug plate 501 is adapted to the slot 203.

[0023] During implementation, the filter plate 4 is inserted into the annular step 202. At this time, the filter plate 4 is located in the feed port 201, and the annular plate 401 is located in the annular step 202. Since the side end of the insert plate 501 is arranged in an arc shape, when the annular plate 401 passes through the first die head 2 close to the side end of the annular step 202, the side end will be pressed to make the insert plate 501 move toward the inside of the installation groove 402. At this time, the insert plate 501 will press the spring 5 to shrink. Then, when the annular plate 401 is installed into the annular step 202, the insert plate 501 passes the position of the slot 203. At this time, the spring 5 will rebound against the insert plate 501, so that the insert plate 501 is inserted into the slot 203, thereby facilitating the limiting and fixing of the annular plate 401 and the filter plate 4, and facilitating the installation between the first die head 2 and the second die head 6.

[0024] Working principle: By inserting the filter plate 4 toward the annular step 202, the filter plate 4 is located in the feed port 201, and the annular plate 401 is located in the annular step 202. Since the side end of the insert plate 501 is arranged in an arc shape, when the annular plate 401 passes through the first die head 2 close to the side end of the annular step 202, the side end will be pressed to make the insert plate 501 move toward the inside of the installation groove 402. At this time, the insert plate 501 will press the spring 5 to shrink. Then, when the annular plate 401 is installed into the annular step 202, the insert plate 501 passes through the slot 203. When the first die head 2 and the second die head 6 are installed, shaking occurs, which can prevent the annular plate 401 and the filter plate 4 from being separated from the annular step 202 or being displaced, and can avoid affecting the installation and fixing effect of the filter plate 4. The use of the mounting assembly in conjunction with the annular flange 601 improves the installation and fixing effect of the filter plate 4, and at the same time avoids affecting the installation efficiency of the first die head 2 and the second die head 6.

[0025] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A plastic extruder head, comprising a first die head (2) and a second die head (6), wherein the side end of the first die head (2) is provided with an annular step (202), and the side end of the first die head (2) is installed with the second die head (6), characterized in that: The side end of the annular step (202) is provided with a plurality of slots (203), the side end of the annular step (202) is provided with a filtering mechanism, the filtering mechanism comprises a filtering assembly and a plurality of mounting assemblies, and the side end of the filtering assembly is provided with a plurality of mounting assemblies for mounting the filtering assembly.

2. A plastic extruder head according to claim 1, characterized in that: The filter assembly comprises a filter plate (4), the side end of the filter plate (4) is fixedly connected to an annular plate (401), the left and right side ends of the annular plate (401) are both provided with mounting grooves (402), the side end of each mounting groove (402) is provided with a side groove (403), and a plurality of mounting assemblies are respectively located in each mounting groove (402).

3. A plastic extruder head according to claim 2, characterized in that: The installation assembly comprises a plurality of springs (5), wherein the plurality of springs (5) are fixedly connected to the inner side ends of the installation groove (402), and an inserting plate (501) is fixedly connected between the side ends of the plurality of springs (5).

4. A plastic extruder head according to claim 3, characterized in that: The side ends of the plug plate (501) are fixedly connected to a pull plate (502), and the pull plate (502) is located in the side groove (403).

5. A plastic extruder head according to claim 3, characterized in that: The side end of the plug board (501) is arranged in a slope shape, and the plug board (501) is adapted to the slot (203).

6. A plastic extruder head according to claim 1, characterized in that: A feed port (201) is provided at the side end of the first die head (2), and an output pipe (1) is fixedly connected to the side end of the first die head (2).

7. A plastic extruder head according to claim 1, characterized in that: The side end of the second die head (6) is fixedly connected to an annular flange (601), and the side end of the second die head (6) is fixedly connected to a molding module (602).

Images