Method for manufacturing mold cavity for preventing shrinkage of decorative strip products and mold cavity

A cavity and mold technology, which is applied in the field of manufacturing mold cavities for preventing the shrinkage of trim products, can solve the problems of shrinkage of trim products, pits in trim products, etc., and achieves good product appearance, small modification, and simple method and structure. Effect

Inactive Publication Date: 2011-05-11
JIAXING XINYUAN PRECISION MOLD TECH
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for manufacturing a mold cavity that prevents trim products from shrinking and the mold cavity thereof. This method only needs to make minor changes to the mold cavity to solve the problem that the trim products are in the corner. The problem of pit

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
  • Method for manufacturing mold cavity for preventing shrinkage of decorative strip products and mold cavity
  • Method for manufacturing mold cavity for preventing shrinkage of decorative strip products and mold cavity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0014] Such as figure 1 As shown, a mold cavity that prevents shrinkage of decorative strip products, the cavity includes a horizontal section 1, a corner section 2 and a vertical section 3, the lower edge of the corner section 2 of the cavity is indented, reducing the cavity The thickness of the corner part, and the lower side of the horizontal section 1 starts from the connection with the corner part 2, and gradually expands...

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 method manufacturing a mold cavity for preventing shrinkage of decorative strip products and the mold cavity. The decorative strip products have large injection pressure loss because the tail end of the product is far from the glue inlet, so that the tail part is easy to shrink at the corner to generate pits which can influence the appearance of the products. In order to solve the problem, the thickness of the mold cavity at the corner can be reduced, and then slowly transits to the normal thickness through a horizontal segment with a distance, so that the shrinkage problem of the tail part of the product can be well solved. The method is simple, and good effect can be achieved only by slightly changing the mold.

Description

technical field [0001] The invention belongs to the field of moulds, in particular to a method for manufacturing a mold cavity for preventing decorative strip products from shrinking and the mold cavity thereof. Background technique [0002] Injection molded parts similar to decorative strips, in the process of injection molding, because the end of the product is far away from the plastic inlet, the injection pressure loss is large, and shrinkage is easy to occur, especially the corners of the product are prone to pits, affecting the product. Appearance, a similar situation occurs. In the prior art, the injection molding process is mostly adjusted, such as increasing the injection pressure, but this is easy to cause the undesirable phenomenon of burrs on the product. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for manufacturing a mold cavity that prevents trim products from shrinking and the mold cav...

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
IPC IPC(8): B29C45/37
Inventor 黄顺华高登明
Owner JIAXING XINYUAN PRECISION MOLD TECH
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