CN215750670U - Plastic extrusion screw - Google Patents
Plastic extrusion screw Download PDFInfo
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- CN215750670U CN215750670U CN202121027780.0U CN202121027780U CN215750670U CN 215750670 U CN215750670 U CN 215750670U CN 202121027780 U CN202121027780 U CN 202121027780U CN 215750670 U CN215750670 U CN 215750670U
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- plasticizing
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- extrusion
- plastify
- thread
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Abstract
The utility model relates to the field of screws, in particular to a plastic extrusion screw, which comprises an installation part, a particle feeding part, a plasticizing extrusion part and a material distribution part, wherein the installation part is positioned at one end and is connected with the particle feeding part, the particle feeding part is connected with the plasticizing feeding part, the plasticizing feeding part is connected with the plasticizing extrusion part, the plasticizing extrusion part is connected with the material distribution part, the plasticizing feeding part comprises a plasticizing main shaft, a first plasticizing feeding thread and a second plasticizing feeding thread, the first plasticizing feeding thread is uniformly fixed on the outer side of the plasticizing main shaft, the second plasticizing feeding thread is positioned in the adjacent first plasticizing feeding thread, and the second plasticizing feeding thread is firstly and uniformly distributed in the first plasticizing feeding thread. The screw rod realizes mixing and extrusion of the color master raw materials, and ensures the uniformity of extruded products.
Description
Technical Field
The utility model relates to the field of screws, in particular to a plastic extrusion screw.
Background
The extrusion screw is a cylinder with a spiral groove cut on the outer surface or a cone with a conical spiral groove cut on the outer surface, and is widely used for plastic molding equipment, such as plastic profile extruders, injection molding machines and the like. The extrusion screw has the function of enabling the rubber to gradually change into linear motion along with the rotation motion of the extrusion screw, moving towards the machine head direction, matching with the machine body, compressing to generate heat, softening and stirring, and mixing the rubber, wherein the extrusion screw and the machine barrel are core parts of the plastic molding equipment. The existing extrusion screw generally comprises a connecting section and a mixing section, wherein a thread section is arranged on the extrusion screw between the feeding section and the mixing section, a spiral groove is formed between adjacent threads, rubber materials are changed into linear motion along with the rotary motion of the spiral groove, and the flow rate of the rubber materials in each section of the extrusion screw is different due to uncertain physical characteristics of the rubber materials, such as softness, hardness, tightness, fluidity and the like of raw materials, so that the defects of uneven material mixing, inaccurate metering and the like can be caused, and the quality of a product finally produced by the rubber materials is seriously influenced.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides the plastic extrusion screw, which realizes uniform extrusion of plasticized rubber materials by arranging the plasticizing extrusion part and the material distribution part, and ensures the quality of pipes at a production place.
The technical scheme of the utility model is as follows:
the utility model provides a plastic extrusion screw, which comprises an installation part, a particle feeding part, a plasticizing extrusion part and a material distribution part, wherein the installation part is positioned at one end, the installation part is connected with the particle feeding part, the particle feeding part is connected with the plasticizing feeding part, the plasticizing feeding part is connected with the plasticizing extrusion part, the plasticizing extrusion part is connected with the material distribution part, the plasticizing feeding part comprises a plasticizing main shaft, a first plasticizing feeding thread and a second plasticizing feeding thread, the first plasticizing feeding thread is uniformly fixed at the outer side of the plasticizing main shaft, the second plasticizing feeding thread is positioned in the adjacent first plasticizing feeding thread, the second plasticizing feeding thread is firstly uniformly distributed in the first plasticizing feeding thread, and then the distance between the second plasticizing feeding thread and the first plasticizing feeding thread is gradually reduced, until they are brought together.
Preferably, the granule pay-off portion includes granule pay-off main shaft and granule pay-off screw thread, be equipped with outside the granule pay-off main shaft granule pay-off screw thread, just the inclination of granule pay-off screw thread is less than the inclination of first plastify pay-off screw thread.
Preferably, the plasticizing extrusion part comprises an extrusion main shaft and an extrusion thread, the extrusion main shaft is externally provided with the extrusion thread, and the angle of the extrusion thread is larger than the inclination angle of the first plasticizing feeding thread.
Preferably, the material distributing part comprises a material distributing main shaft and a plurality of material distributing teeth which are uniformly fixed on the material distributing main shaft.
Preferably, the material distributing teeth have 4-8 teeth, and the material distributing teeth are uniformly distributed on the material distributing main shaft.
Preferably, the height of the first plasticizing feed flight is greater than the height of the pellet feed flight.
The utility model discloses a during operation at first will on mechanical equipment was installed to the installation department, look female raw materials is in sent into in the granule pay-off portion plastify pay-off portion later get into the portion is extruded in the plastify, gets into at last divide the material portion to be extruded.
The utility model achieves the following beneficial effects:
according to the utility model, the distribution part is arranged to realize uniform dispersion of the plasticized rubber material, so that the uniformity of the color and the discharge amount of an extruded product is ensured, and the consistency of the color and the thickness of the product is ensured;
through the arrangement of the plasticizing extrusion part, the plasticized rubber material is stirred and extruded, and the uniform and continuous feeding of the rubber material is ensured.
Drawings
Fig. 1 is a front view of the overall structure of the present invention.
Fig. 2 is a sectional view of the distributing portion.
In the figure, 1, mounting part; 2. a particle feeding section; 3. a plasticizing feeding part; 4. a plasticizing extrusion part; 5. a material distributing part; 21. a particle feed spindle; 22. particle feeding threads; 31. plasticizing the main shaft; 32. a first plasticized feed flight; 33. a second plasticized feed thread; 41. extruding a main shaft; 42. extruding threads; 51. a material distributing main shaft; 52. divide the material tooth.
Detailed Description
To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.
As shown in fig. 1-2, the utility model provides a plastic extrusion screw, which comprises an installation part 1, a particle feeding part 2, a plasticizing feeding part 3, a plasticizing extrusion part 4 and a material distribution part 5, wherein the installation part 1 is positioned at one end, the installation part 1 is connected with the particle feeding part 2, the installation part 1 is used for installing the whole screw on a specified device, the particle feeding part 2 is connected with the plasticizing feeding part 3, the particle feeding part 2 feeds raw material color masterbatch into a plasticizing area to complete the gelatinization of the color masterbatch, the plasticizing feeding part 3 is connected with the plasticizing extrusion part 4, the plasticizing extrusion part 4 extrudes the gelatinized material outwards, the plasticizing extrusion part 4 is connected with the material distribution part 5, the material distribution part 5 uniformly stirs the gelatinized material to prevent the product appearance from not reaching the standard due to the nonuniform mixing of the material, and the plasticizing part 3 comprises a plasticizing main shaft 31, A first plasticizing feeding screw thread 32 and a second plasticizing feeding screw thread 33, wherein the plasticizing main shaft 31 is used for driving the first plasticizing feeding screw thread 32 and the second plasticizing feeding screw thread 33 to rotate, the first plasticizing feeding screw thread 32 is uniformly fixed on the outer side of the plasticizing main shaft 31, the second plasticizing feeding screw thread 33 is positioned in the adjacent first plasticizing feeding screw thread 32, the second plasticizing feeding screw thread 33 is firstly uniformly distributed in the first plasticizing feeding screw thread 32, then the distance between the second plasticizing feeding screw thread 33 and one side of the first plasticizing feeding screw thread is gradually reduced until the first plasticizing feeding screw thread and the second plasticizing feeding screw thread 33 are overlapped, the first plasticizing feeding screw thread 32 and the second plasticizing feeding screw thread 33 are arranged to extrude the gelled raw material to the plasticizing extrusion part 4, and the distance between the second plasticizing feeding screw thread 33 and the first plasticizing feeding screw thread 32 is gradually reduced, the extrusion work of the plasticized raw materials is realized, the density of the raw materials entering the plasticizing extrusion part 4 is ensured, the generation of air at the position is avoided, and the quality of the produced pipes is ensured.
In this embodiment, granule pay-off portion 2 includes granule pay-off main shaft 21 and granule pay-off screw thread 22, granule pay-off main shaft 21 is equipped with outward granule pay-off screw thread 22, through setting up granule pay-off main shaft 21 can drive the rotation of granule pay-off screw thread 22 is that the raw materials can continuously flow into the low reaches, the inclination of granule pay-off screw thread 22 is less than the inclination of first plastify pay-off screw thread 32, guarantees that the raw materials of granule pay-off screw thread 22 motion can have a conveying pressure to the material of low reaches to extrude the bubble in the sizing material after the plastify, guarantee the density and the quality of product.
In this embodiment, the plasticizing and extruding portion 4 includes an extruding main shaft 41 and an extruding thread 42, the extruding main shaft 41 is externally provided with the extruding thread 42, and the angle of the extruding thread 42 is greater than the inclination angle of the first plasticizing and feeding thread 32, so that the rubber material conveyed by the first plasticizing and feeding thread 32 has an extrusion force on the rubber material in the extruding thread 42, thereby ensuring the density and quality of the product.
In this embodiment, the material distributing portion 5 includes a material distributing main shaft 51 and a plurality of material distributing teeth 52, and the material distributing teeth 52 are uniformly fixed on the material distributing main shaft 51, so that the glue material is sufficiently stirred, and the consistency and color uniformity of the product are ensured.
In the embodiment, the feed teeth 52 have 4-8 teeth, and the feed teeth 52 are uniformly distributed on the feed spindle 51.
In this embodiment, the height of the first plasticizing feed flight 32 is greater than the height of the pellet feed flight 22, such that the first plasticizing feed flight 32 has a compressive force with the compound.
The utility model discloses a during operation at first will on mechanical equipment was installed to installation department 1, look female raw materials is in being sent into in the granule pay-off portion 2 plastify pay-off portion 3 later gets into the plastify extrusion portion 4 gets into at last divide material portion 5 to be extruded.
The utility model achieves the following beneficial effects:
according to the utility model, the distribution part 5 is arranged to realize uniform dispersion of the plasticized rubber material, so that the uniformity of the color and the discharge amount of an extruded product is ensured, and the consistency of the color and the thickness of the product is ensured;
the plasticizing extrusion part 4 is arranged to stir and extrude the plasticized rubber material, so that the rubber material can be uniformly and continuously fed.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (6)
1. A plastic extrusion screw is characterized in that: including installation department (1), granule pay-off portion (2), plastify pay-off portion (3), plastify extrusion portion (4) and divide material portion (5), installation department (1) is located one end, installation department (1) with granule pay-off portion (2) are connected, granule pay-off portion (2) with plastify pay-off portion (3) are connected, plastify pay-off portion (3) with plastify extrusion portion (4) are connected, plastify extrusion portion (4) with divide material portion (5) to be connected, plastify pay-off portion (3) including plastify main shaft (31), first plastify pay-off screw thread (32) and second plastify pay-off screw thread (33), first plastify pay-off screw thread (32) are even to be fixed in plastify main shaft (31) outside, second plastify pay-off screw thread (33) are located adjacent in first plastify pay-off screw thread (32), and the second plasticizing feeding screw threads (33) are uniformly distributed in the first plasticizing feeding screw threads (32) firstly, and then the distance between the second plasticizing feeding screw threads and the second plasticizing feeding screw threads (33) on one side is gradually reduced until the second plasticizing feeding screw threads are overlapped together.
2. A plastic extrusion screw as claimed in claim 1, wherein: granule pay-off portion (2) are including granule pay-off main shaft (21) and granule pay-off screw thread (22), granule pay-off main shaft (21) is equipped with outward granule pay-off screw thread (22), just the inclination of granule pay-off screw thread (22) is less than the inclination of first plastify pay-off screw thread (32).
3. A plastic extrusion screw as claimed in claim 2, wherein: the plasticizing extrusion part (4) comprises an extrusion main shaft (41) and an extrusion thread (42), the extrusion main shaft (41) is externally turned to form the extrusion thread (42), and the angle of the extrusion thread (42) is larger than the inclination angle of the first plasticizing feeding thread (32).
4. A plastic extrusion screw according to claim 1, 2 or 3, wherein: the material distributing part (5) comprises a material distributing main shaft (51) and a plurality of material distributing teeth (52), and the material distributing teeth (52) are uniformly fixed on the material distributing main shaft (51).
5. A plastic extrusion screw according to claim 4, wherein: the material distributing teeth (52) are 4-8 teeth, and the material distributing teeth (52) are uniformly distributed on the material distributing main shaft (51).
6. A plastic extrusion screw as claimed in claim 2, wherein: the first plasticizing feed flight (32) has a height greater than a height of the pellet feed flight (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121027780.0U CN215750670U (en) | 2021-05-12 | 2021-05-12 | Plastic extrusion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121027780.0U CN215750670U (en) | 2021-05-12 | 2021-05-12 | Plastic extrusion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215750670U true CN215750670U (en) | 2022-02-08 |
Family
ID=80097111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121027780.0U Active CN215750670U (en) | 2021-05-12 | 2021-05-12 | Plastic extrusion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215750670U (en) |
-
2021
- 2021-05-12 CN CN202121027780.0U patent/CN215750670U/en active Active
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