The die gap refers to the sum of the gaps on both sides of the punch into the lower die. It is related to the plate thickness, material and stamping process. Choosing a suitable die gap can ensure good punching quality, reduce burrs and collapse, and maintain the plate. The material is flat, effectively preventing the material from being taken and prolonging the life of the mold.

By checking the condition of the stamping waste, the CNC feeder can determine whether the mold gap is appropriate. If the gap is too large, the scrap will have a rough undulating fracture surface and a small shiny surface. The larger the gap, the larger the angle formed between the fracture surface and the shiny surface, the curling and fracture will occur during punching, and even a thin edge protrusion will appear. Conversely, if the gap is too small, the scrap will have a small angle of fracture and a large shiny surface.

When performing local punching such as grooving, nibbling, shearing, etc., the lateral force will deflect the punch and cause the unilateral clearance to be too small, and sometimes the edge offset may excessively scratch the lower die, causing rapid wear of the upper and lower dies. When the mold is punched with the best clearance, the fracture surface and the shiny surface of the scrap have the same angle and overlap each other, so that the punching force is minimized and the punching burr is small.

If the workpiece has excessive burrs or unusual noise during stamping, the mold may be passivated. The CNC feeder checks the punch and the lower die. When the edge is worn to produce an arc with a radius of about 0.10 mm, it is sharpened. Practice has shown that frequent micro-sharpening, rather than waiting for non-grinding, can not only maintain good workpiece quality, reduce punching force, but also prolong the life of the mold by more than one time.

Specification:

Straigtening performance:

*1:(Pneumatic):Option in case of pneumatic mandrel expansion is provi

RUIHUI founded in 2000, the technology of automation periphery is from Japan. RUIHUI has been learning Japan and Germany technology, and using high standards of principle in the parts selection, for assembly process and spare parts, adhere to the requirements in accordance with the original design standard, and into each manufacturing process. In 20 years has accumulated experience and excellent design ability of Japanese engineers guided ruihui highly responsible for Industry and ruihui strong executive team, created a batch of well-known auto parts manufacturers, allowing them to reach the high level in same industry，and investment less.

Customer case

Manufacturing industry; the United States Lear, Honda factory, Ford factory, GAC Group, Chongqing Changan, Wuhan Shenlong, BMW Brilliance, FAW Volkswagen, Beijing Hyundai.

And other household appliances manufacturers; such as GREE, Haier, Midea, Chigo Air conditioning.

hardware manufacturers; such as the United States Southco, are Zhongtai industrial manufacturers success cooperation case.

RUIHUI QUALITY is not the best in the world, and the price is not the cheapest. But we can provide excellent products to help you defeat your competitors.

Products: Feeder machine, Straightener machine, Uncoiler machine, Decoiler with Straightener, 3 in 1 NC Straightener Feeder, Coil handling system, Transfer system, Robot System, to meet the market needs of customers, improve work efficiency, reduce the burden of enterprise management personnel, maintenance of production safety and the customer staff made a significant contribution.

At present the company to further develop the market, at the end of 2017, the total investment reached 30 million USD, plant area of more than 20 thousand square meters, in order to meet the demand on the market and lay a solid foundation after.

Why choose us?

1^st,We have a high level of technical research and development team;

2^nd,We can provide the design and planning of the whole plant to realize the turnkey project;

3^rd, our philosophy: quality is the social responsibility;

4^th,our products have been recognized by the market, in the major automotive OEM, home appliance industry, hardware industry has been applied;

5^th,We have a highly effective after-sales service team and get customer approval.