Needle-valve order hot runner injection molding device

An injection molding device and hot runner technology, which is applied in the field of plastic parts manufacturing, can solve the problems that cannot meet the high appearance quality and high strength performance of large plastic parts, achieve smooth and full appearance streamlines, improve stability, and reduce internal The effect of stress

Inactive Publication Date: 2010-06-23
CHONGQING TECH & BUSINESS UNIV
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of traditional injection molding equipment that cannot meet the requirements of high appearance quality and high strength performance of large plastic parts, and provide a method that can significantly improve its appearance quality, significantly improve or even eliminate its weld lines and sink marks. ; Needle-valve sequential hot runner injection molding device to improve the strength performance of parts

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
  • Needle-valve order hot runner injection molding device
  • Needle-valve order hot runner injection molding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The plasticized molten plastic is injected into the mold cavity 4 to fill the mold by opening the sequence valve hot runner 8 and the needle valve gate 3 under the action of the sequence valve control cylinder 1, and the molten plastic entering at this time flows to the left and right sides Filling the mold, when they just flow through the sequence valve hot runner 2 or sequence valve hot runner 7 position, at this time the sequence valve hot runner 2 and sequence valve hot runner 7 are opened for feeding, and the molten material fed directly merges into the sequence valve hot flow The molten material in the channel 8 moves forward together to avoid the fusion and docking of the molten material in the two gates. When the sequence valve hot runner 2 and sequence valve hot runner 7 are opened, the sequence valve hot runner can be closed or continued to be opened 8 to adjust the smoothness of cavity filling and the flow balance of melt. Until the confluence melt fills the m...

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 relates to a needle-valve order hot runner injection molding device, which is composed of a conventional injection molding die part and a needle-valve order hot runner pouring system part, wherein the conventional injection molding die part consists of a die carrier, a die plate, a cavity, an ejection mechanism, and the like; and the needle-valve order hot runner pouring system part consists of control cylinder, a hot runner plate, a needle valve, gates, a sensor, and the like. The needle-valve order hot runner injection molding device can effectively improve and eliminate welding marks and sink marks of injection molding products, effectively improve the internal stress of the injection molding products, and increase the performance quality of the injection molding products. The needle-valve order hot runner injection molding device is especially suitable for producing large injection molding products.

Description

Technical field: [0001] The invention relates to the injection molding technology of polymer materials, in particular to a needle valve type sequential hot runner injection molding device used for polymer material molding processing. It belongs to the technical field of production and manufacturing of plastic parts. Background technique: [0002] With the rapid development of the plastics industry, users have become increasingly strict with the appearance quality of large injection molded parts. Due to the long flow distance of large injection molded parts, ordinary gating systems, even general hot runner systems, need to open multiple gates to meet the needs of mold filling flow. However, once the mold is opened with more than two gates, the confluence of the material flows filled into the mold cavity between every two gates must form weld marks, which not only greatly affect the appearance of the product The quality also affects the strength performance of the product. There...

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): B29C45/76B29C45/27
Inventor 袁毅邹昌平
Owner CHONGQING TECH & BUSINESS UNIV
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