Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Modification Technology of Small Pressure Mold

A pressure mold and process technology, applied in the field of small pressure mold transformation technology, can solve the problems of reduced mold service life, many pressing variables, blurred handwriting, etc., and achieve the effect of improving service life, ensuring safe production, and reducing the number of pressing times.

Active Publication Date: 2021-03-23
中国黄金集团三门峡中原金银制品有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2. If additional pressure is added to force the pattern to form, the mold may be cracked or damaged, and the product will also appear flanging, which will bring inconvenience to the final product processing
[0005] 3. There are many pressing variables, the service life of the mold is reduced, and the pattern pressed by the product will easily lead to ghosting of the product outline or blurred writing after repeated annealing and extrusion

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
  • A Modification Technology of Small Pressure Mold
  • A Modification Technology of Small Pressure Mold
  • A Modification Technology of Small Pressure Mold

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention is described in further detail below by embodiment, and embodiment is only used for illustrating the present invention, does not limit the scope of the present invention.

[0023] like Figure 1-4 A small pressure mold modification process shown includes the following steps:

[0024] 1) Tool processing: Use a 1200-mesh oilstone to manually form a micro-arc knife tip with an end diameter of 0.04mm under a microscope. The diameter D of the tapered flat-bottomed knife is 3mm, the taper α is 30 degrees, and the bottom diameter d is 0.04mm;

[0025] 2) Processing of the lower spherical surface: The lower spherical surface is processed with a tapered flat-bottomed knife. In the processing of the lower spherical surface, the arc surface model is first established, and the text or relief pattern is projected onto the arc surface design path, and the path distance is 0.01mm. The dense path distribution is conducive to the smoothness of the engraving plane...

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
diameteraaaaaaaaaa
heightaaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of molds, in particular to a low-pressure mold transformation technology. The technology comprises the steps of 1) cutter processing; 2) processing for a lower spherical part; 4) processing for an upper spherical part; 5) mold installation. According to the transformation technology, the surfaces of upper and lower molds are transformed into a micro-spherical cambered surface shape, and patterns and characters are carved into a micro cambered surface through a projection carving mode. The technology has the advantages that a workblank precious metal materialwith the thickness below 1.5 millimeters is better formed, and the product presses more full patterns and clear handwriting; the pressure tonnage required by product pressing is lowered, the service life of the molds is effectively prolonged, the dangerous factors such as mold cracking are reduced, and safety production is guaranteed; the pressing frequency is lowered, and the production efficiency of a pressing link is improved.

Description

technical field [0001] The invention relates to the field of molds, in particular to a small-pressure mold transformation process. Background technique [0002] The production of gold coins is to apply pressure to the upper and lower molds through a hydraulic press, and squeeze the gold coin blanks in the cavity to realize the molding of patterns and fonts. The upper and lower molds of the traditional mold are flat, which will cause the metal material fluidity of the small-gram precious metal product blank with a thickness of less than 1.5mm to be poor, and there are the following processing defects: [0003] 1. The embossed pattern on the gold coin is not fully suppressed and the sand surface and mirror surface are underpressured. [0004] 2. If additional pressure is added to force the pattern to form, the mold may be cracked or damaged, and the product will also appear flanging, which will bring inconvenience to the later processing of the finished product. [0005] 3. ...

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 Patents(China)
IPC IPC(8): B23P15/24B30B15/02
CPCB23P15/24B30B15/02B30B15/026
Inventor 彦飞柴景余王志龙杨晓东
Owner 中国黄金集团三门峡中原金银制品有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com