Material backflow and shortage prevention pushing device for injection mold

A material return, injection mold technology, applied in the field of injection molds, can solve problems such as unqualified, injection molding quality decline, raw material deviation, etc., to avoid the decline of scalability and improve quality.

Active Publication Date: 2021-09-03
东莞市燊华塑胶五金有限公司
View PDF17 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Before the production and molding of plastic parts, it is necessary to push the molten plastic raw materials into the injection mold through the injection machine. There will be raw material backflow during the use of the existing injection molds. The public patent number: CN112223647A, the name is an injection mold push In this patent, the material flow is blocked by the rotating baffle plate, but during the rotation of the material baffle plate, it will push the surrounding raw materials to move, resulting in deviations in the amount of raw materials introduced into injection molding, and the quality of injection molded parts will decline. or unqualified questions ， For this reason, we propose a propulsion device for preventing material backflow and lack of material for injection molds

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Material backflow and shortage prevention pushing device for injection mold
  • Material backflow and shortage prevention pushing device for injection mold
  • Material backflow and shortage prevention pushing device for injection mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: Please refer to figure 1 , the present invention provides a propulsion device for preventing material backflow and lack of material for injection molds, including a base assembly 100, including a housing 101, the inner cavity of the housing 101 is inserted with a propelling cylinder 102, and the surface of the propelling cylinder 102 is inserted and connected with its inner cavity. Feed pipe 103; cut-off assembly 200, the cut-off assembly 200 is located in the inner cavity of the push cylinder 102, and the cut-off assembly 200 includes a fixed tube 201 inserted through the inner cavity of the push cylinder 102, and the end of the fixed tube 201 is provided with a push Cylinder 202 ; brush surface assembly 300 , the brush surface assembly 300 is arranged on one side of the cutting assembly 200 .

[0027] see Figure 2-4 , a U-shaped rod 203 is plugged into the fixed pipe 201, and one end of the U-shaped rod 203 is fixedly connected with the propulsion ring 20...

Embodiment 2

[0032] Example 2: Please refer to Figure 4-6 , the brush surface assembly 300 includes a bracket 301 fixed in the outlet pipe 218, a notch cylinder 302 is inserted horizontally on the surface of the bracket 301, and a strip-shaped notch is opened on the surface of the notch cylinder 302, and a cleaning plate 303 is arranged inside the notch cylinder 302, and the cleaning The surface of the plate 303 is densely inserted with brushes, and the end of the notch tube 302 is rotatably connected with a sleeve 304 sleeved outside the sleeve 304 .

[0033] see Figure 5 and Image 6 , the sleeve 304 is fixedly inserted with a rotating rod 305, the end of the rotating rod 305 is inserted into the inner cavity of the bracket 301, and the inner cavity of the bracket 301 is provided with a drive structure 306 fixedly connected to the output end and the end of the cleaning plate 303, The driving structure 306 is composed of a rotating cylinder and a pushing cylinder. The rotating rod 305...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a material backflow and shortage prevention pushing device for an injection mold in the technical field of injection molds. The pushing device comprises a base body assembly, a material intercepting assembly and a surface brushing assembly, wherein a pushing cylinder is inserted into an inner cavity of a shell in a penetrating manner, the material intercepting assembly comprises a fixed pipe which is inserted into an inner cavity of the pushing cylinder in a penetrating manner, and the surface brushing assembly is arranged on one side of the material intercepting assembly. According to the pushing device, injection molding raw materials are guided into the pushing cylinder, a U-shaped rod is driven by a moving pumping rod to drive a pushing ring to feed the injection molding raw materials through a stretchable sleeve and a guiding-out pipe, a pulling rope is in a loosened state, the diameter of a rope sleeve is changed to make the rope sleeve tightly bound to the outer wall of the stretchable sleeve, and flowing of the injection molding raw materials is rapidly blocked, so that the raw materials at the material intercepting position are intercepted in a smoothly flowing manner, the problem of material shortage or material excess during material blocking is avoided, and the quality of injection molding products is improved; and meanwhile, the inner wall of the stretchable sleeve is treated regularly through the surface brushing assembly, so that the problem that the stretching and retracting performance of the stretchable sleeve is reduced due to dry and hard raw materials is avoided.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to a propulsion device for preventing material backflow and lack of material for injection molds. Background technique [0002] Plastic molds are tools that are matched with plastic molding machines in the plastic processing industry to give plastic products a complete configuration and precise dimensions. Due to the variety of plastics and processing methods, and the structures of plastic molding machines and plastic products, the types and structures of plastic molds are also varied. A plastic mold is a tool for producing plastic products. It consists of several groups of parts, and this combination has a molding cavity. During injection molding, the mold is clamped on the injection molding machine, the molten plastic is injected into the molding cavity, and cooled and shaped in the cavity, then the upper and lower molds are separated, and the product is ejected from the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/46B29C45/58B29C45/17
CPCB29C45/46B29C45/581B29C45/1753
Inventor 周加友
Owner 东莞市燊华塑胶五金有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap