CN217123879U

CN217123879U - Efficient mixing precision injection screw

Info

Publication number: CN217123879U
Application number: CN202220560420.5U
Authority: CN
Inventors: 张华君
Original assignee: Guangdong Lijin Plastic Machinery Intelligent Manufacturing Co ltd
Current assignee: Guangdong Lijin Plastic Machinery Intelligent Manufacturing Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-08-05
Anticipated expiration: 2032-03-15

Abstract

The utility model provides a high-efficient mixing accurate injection screw rod, include the screw rod body and cross the rubber head subassembly, cross the rubber head subassembly setting and be in the front portion of screw rod body be equipped with single thread structure and mixing head on the screw rod body, just mixing head sets up cross the rubber head subassembly with between the single thread structure. The material is conveyed and compressed through the single-thread structure, the material is preliminarily mixed, and then the mixing is complete through the mixing head, so that the plasticizing condition requirement of the ABS + PC mixed rubber material can be met.

Description

Efficient mixing precision injection screw

Technical Field

The utility model relates to a screw rod technical field, concretely relates to high-efficient mixing precision injection screw rod.

Background

The melting of the glue of the injection molding machine is realized through a glue melting cylinder component. The materials are conveyed forwards through the screw rods arranged in the glue melting cylinder assembly, and then are melted by the heating device. The ABS + PC rubber material is a raw material with high melt viscosity, poor fluidity, high strength, good transparency and light weight. High injection pressure and melt adhesive rotating speed are needed to improve the fluidity and mixing performance of the ABS + PC, and in addition, the molding temperature of the ABS + PC is very close to the thermal decomposition temperature, so that the temperature range for molding is narrow, and the ABS + PC is a rubber material which is difficult to mold. Therefore, when ABS + PC is injected by a conventional injection screw, temperature control abnormity occurs to a higher degree when products are produced by injection molding, and serious defects such as poor surface gloss, yellowing, black spots and the like of the products are caused because the rubber material cannot be completely extruded from the rubber melting cylinder in time.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve one of the problem that exists among the prior art to a certain extent, for this reason, the utility model aims to provide a high-efficient mixing accurate injection screw, it is mixed completely.

The above purpose is realized by the following technical scheme:

the utility model provides a high-efficient mixing accurate injection screw, includes the screw rod body and crosses the glued membrane subassembly, cross the glued membrane subassembly setting and be in the front portion of screw rod body be equipped with single helicitic texture and mixing head on the screw rod body, just mixing head sets up cross the glued membrane subassembly with between the single helicitic texture.

As a further improvement, the screw body is integrally formed with the rubber head assembly.

As a further improvement, the rubber head assembly comprises a rubber head and a rubber ring, and the rubber ring is arranged between the rubber head assembly and the mixing head.

As a further improvement of the utility model, the surface of the screw body is electroplated.

As a further improvement, the screw body includes feeding section, compression section and measurement section in proper order, single thread structure includes first screw thread and second screw thread, first screw thread sets up on the feeding section, the second screw thread sets up on the compression section, mixing head sets up on the measurement section.

As a further improvement, the feed section accounts for 55% of the length of the screw body, the compression section accounts for 30% of the length of the screw body, and the metering section accounts for 15% of the length of the screw body.

As a further improvement of the present invention, the bottom diameter of the first thread is smaller than the bottom diameter of the second thread.

As a further improvement of the present invention, the bottom diameter of the second thread is gradually increased from the end close to the feeding section to the end close to the metering section.

As a further improvement, the mixing head is a full-through mixing head.

Compared with the prior art, the utility model discloses an at least including following beneficial effect:

1. the utility model provides a high-efficient mixing accurate injection screw carries, compresses the material through single thread structure, carries out preliminary mixing to the material, and after mixing through mixing head again, it is mixed complete to make, can reach the plastify conditional requirement that ABS + PC mixed sizing material.

Drawings

FIG. 1 is a schematic structural diagram of a high-efficiency mixing precision injection screw in the example;

FIG. 2 is another schematic diagram of the high-efficiency mixing precision injection screw of the embodiment.

Detailed Description

The present invention is illustrated by the following examples, but the present invention is not limited to these examples. To the embodiment of the present invention, modify or replace some technical features, without departing from the spirit of the present invention, it should be covered in the technical solution scope of the present invention.

Referring to fig. 1 and 2, an efficient mixing precise injection screw comprises a screw body 1 and a rubber head assembly 2, wherein the rubber head assembly 2 is arranged at the front part of the screw body 1, a single-thread structure 11 and a mixing head 12 are arranged on the screw body 1, and the mixing head 12 is arranged between the single-thread structure 11 and the screw body 1.

The utility model provides a mixed accurate injection screw rod of high-efficient carries, compresses the material through single-thread structure 11, carries out preliminary mixing to the material, and through the mixed back of mixing head 12 again, it is mixed complete to make, can reach the plastify conditional requirement that ABS + PC mixed sizing material.

The distance between the single thread structure 11 and the mixing head 12 is 0.5-2 cm.

In this embodiment, the kneading head 12 is an all-through kneading head 12.

The provision of the single-flight configuration 11 provides the most basic primary mixing of the compound.

The arrangement of the mixing head 12 is designed mainly for further processing the incompletely mixed rubber materials, but the rubber materials cannot stay in the mixing section for a long time to avoid yellowing and blackening of the rubber materials.

The glue passing head assembly 2 is arranged for preventing the injection process and the backflow of the molten glue stock and improving the injection precision and the injection efficiency.

The screw body 1 and the rubber head assembly 2 are integrally formed.

The rubber passing head assembly 2 comprises a rubber passing head 21 and a rubber passing ring 22, and the rubber passing ring 22 is arranged between the rubber passing head assembly 2 and the mixing head 12.

And electroplating the surface of the screw body 1.

The screw body 1 sequentially comprises a feeding section 101, a compression section 101 and a metering section 102, the single-thread structure 11 comprises a first thread and a second thread, the first thread is arranged on the feeding section 101, the second thread is arranged on the compression section 101, and the mixing head 12 is arranged on the metering section 102.

The feeding section 101 accounts for 55% of the length of the screw body 1, the compression section 101 accounts for 30% of the length of the screw body 1, and the metering section 102 accounts for 15% of the length of the screw body 1.

The base diameter of the first thread is smaller than the base diameter of the second thread.

The bottom diameter of the second screw thread becomes larger from the end close to the feeding section 101 to the end close to the metering section 102.

The bottom diameters of the first threads in the feed section 101 are all the same.

Wherein, the change of the bottom diameter in the second thread means that the base circle of the second thread becomes larger and thicker.

The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.

Claims

1. The utility model provides a high-efficient mixing accurate injection screw, its characterized in that includes the screw rod body and crosses the glued membrane subassembly, it sets up to cross the glued membrane subassembly the front portion of screw rod body be equipped with single thread structure and mixing head on the screw rod body, just mixing head sets up cross the glued membrane subassembly with between the single thread structure.

2. A high efficiency mixing precision injection screw as claimed in claim 1, wherein said screw body is integrally formed with said stripper head assembly.

3. A high efficiency mixing precision injection screw as claimed in claim 1, wherein said rubber passing head assembly comprises a rubber passing head and a rubber passing ring, said rubber passing ring is arranged between said rubber passing head assembly and said mixing head.

4. A high efficiency compounding precision injection screw according to claim 1, wherein said screw body is surface plated.

5. A high efficiency mixing precision injection screw as claimed in claim 1, wherein said screw body comprises in sequence a feed section, a compression section and a metering section, said single flight configuration comprising a first flight disposed on said feed section and a second flight disposed on said compression section, said mixing head disposed on said metering section.

6. A high efficiency mixing precision injection screw as claimed in claim 5, wherein said feed section is 55% of the length of said screw body, said compression section is 30% of the length of said screw body, and said metering section is 15% of the length of said screw body.

7. A high efficiency mixing precision injection screw as claimed in claim 5, wherein the base diameter of said first flight is smaller than the base diameter of said second flight.

8. A high efficiency mixing precision injection screw as claimed in claim 5, wherein the base diameter of said second flight increases from the end adjacent said feed section to the end adjacent said metering section.

9. A high efficiency mixing precision injection screw as claimed in claim 5, wherein said mixing head is an all-through mixing head.