Unlock instant, AI-driven research and patent intelligence for your innovation.

Demolding mold capable of improving surface quality of small-diameter cylindrical injection molding piece

A technology for surface quality and injection molded parts, which is applied in the field of demoulding molds to improve the surface quality of small-diameter cylindrical injection molded parts. Improve product quality, avoid the increase of scrap rate, and improve the effect of surface quality

Inactive Publication Date: 2017-07-18
泸州市胜科模具制造有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a demoulding mold for improving the surface quality of small-diameter cylindrical injection molded parts, so as to solve the problem of not only sticking the product to the slanted top when demoulding the slanted top of the small-diameter cylindrical part with a groove on the hole wall. The product cannot be demolded smoothly, and the direct demoulding of the inclined top will cause the groove to be strained.

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
  • Demolding mold capable of improving surface quality of small-diameter cylindrical injection molding piece
  • Demolding mold capable of improving surface quality of small-diameter cylindrical injection molding piece
  • Demolding mold capable of improving surface quality of small-diameter cylindrical injection molding piece

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1-Figure 8 As shown, the demoulding mold for improving the surface quality of small-diameter cylindrical injection molded parts in the present invention includes a rear mold insert 1, an inclined top I2, an inclined top II3 and a thimble 5, and the rear mold insert 1 is in the shape of a truncated cone, and its small side up;

[0041] A through groove 4 is arranged on the side wall of the back mold insert 1, and the two ends of the back mold insert 1 are communicated by the through groove 4, and the axis of the back mold insert 1 and the axis are at the bottom of the through groove 4 The projection line above forms an acute angle α, and the acute angle α is located in the direction of the small end of the rear mold insert 1; the inclined top I2 is located in the through groove 4, and the shape and size of the inclined top I2 are consistent with the through groove 4;

[0042]A through hole I6 is provided in the back mold insert 1. The through hole I6 is ...

Embodiment 2

[0048] The present invention is based on embodiment 1, and the present invention is further described.

[0049] Such as Figure 1-Figure 8 As shown, the demoulding mold for improving the surface quality of the small-diameter cylindrical injection molded part in the present invention is provided with a guide platform 9 at the large end of the rear mold insert 1, and the guide platform 9 is cylindrical, and it is coaxial with the rear mold insert 1 ;

[0050] A guide hole 10 is provided in the guide table 9, and the guide hole 10 communicates the through groove 4 with the end of the guide table 9 away from the rear mold insert 1, and the axis of the guide hole 10 is parallel to the axis of the rear mold insert 1 On the projection line on the groove bottom of the through groove 4, a guide bar 11 is provided on the end of the inclined top I2 away from the small end of the rear mold insert 1, and the end of the guide bar 11 far away from the inclined top I2 passes through the guid...

Embodiment 3

[0053] The present invention is based on embodiment 2, and the present invention is further described.

[0054] Such as Figure 1-Figure 8 As shown, the demoulding mold of the present invention improves the surface quality of small-diameter cylindrical injection molded parts, the axis of the thimble 5 is perpendicular to the axis of the through hole I6. Since the axis of the through hole I6 and the axis of the rear mold insert 1 form an acute angle β in the direction of the small end of the rear mold insert 1, the value of the acute angle β is consistent with the angle between the central hole wall of the small-diameter cylinder and the hole axis , that is consistent with the draft angle of the center hole, the axis of the thimble 5 is perpendicular to the wall of the center hole of the small-diameter cylinder, so that when the thimble 5 drives the small-diameter cylinder for demoulding, it can drive the small-diameter cylinder to demould, but not Scratches the inner wall of ...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a demolding mold capable of improving the surface quality of a small-diameter cylindrical injection molding piece. The demolding mold comprises a rear mold insert, a first pitched top, a second pitched top and a centre; the rear mold insert is provided with a through groove and is internally provided with a first through hole which is located in the side, close to the axis of the rear mold insert, of the through groove; the first pitched top is provided with a second through hole, one end of the second through hole communicates with the through groove, and the other end of the second through hole penetrates through the first pitched top and extends in the direction away from the axis of the rear mold insert; one end of the centre is fixedly connected with the second pitched top, and the other end of the centre is located at the end, away from the bottom of the through groove, of the interior of the second through hole; an avoiding opening is formed between the through groove and the first through hole; and a groove forming block is arranged on the face, away from the bottom of the through groove, of the first pitched top. Thus, by adopting the double-pitched-top demolding mold, the situation that during demolding of a pitched top of a small-diameter cylindrical piece of which a hole wall is provided with a groove section, the product adheres to the pitched top, and therefore, product demolding cannot be smoothly conducted is avoided.

Description

technical field [0001] The invention relates to a demoulding mold, in particular to a demoulding mold for improving the surface quality of small-diameter cylindrical injection molded parts. Background technique [0002] Mold, various molds and tools used in industrial production for injection molding, blow molding, extrusion, die-casting or forging forming, smelting, stamping and other methods to obtain the required products. In short, a mold is a tool used to shape an object. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the article through the change of the physical state of the formed material. [0003] For some small-diameter cylinders with an outer diameter of less than 100mm, in order to cooperate with other parts, a groove is provided on the wall of the central hole. At the same time, in order to facilitate the drafting after injection molding, the central hole is provid...

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): B29C45/33B29C45/40
CPCB29C45/332B29C45/401
Inventor 唐应炳
Owner 泸州市胜科模具制造有限公司