Low-pressure mold transformation technology
A pressure mold and process technology, which is applied in the field of small pressure mold transformation process, can solve problems such as mold cracking, many pressing variables, and inconvenient handling of finished products, and achieve the effects of reducing pressure tonnage, reducing pressing times, and improving production efficiency
Active Publication Date: 2019-11-01
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
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] 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.
[0025] Such as Figure 1-4 A small pressure mold modification process shown includes the following steps:
[0026] 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;
[0027] 2) Processing of the lower spherical surface 31: The lower spherical surface 31 is processed with a tapered flat-bottomed knife. In the processing of the lower spherical surface 31, the arc surface model is first established, and the text or embossed 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 e...
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
| Property | Measurement | Unit |
|---|---|---|
| Diameter | aaaaa | aaaaa |
| Height | aaaaa | aaaaa |
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 poor fluidity of the metal material of the small-gram precious metal product blank with a thickness of less than 1.5mm, and there are processing defects in the following aspects: [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. [0...
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
Login to View More 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