Analysis of screw fastening in concave and convex die design

The structure of the R pallet is mainly considered to ensure the flatness of the blanking part, the operation is simple, and the economy is economical. Through the calculation of the pressure center, the resultant action point of the punching force is obtained, so that the point coincides with the center line of the slider of the press to prevent abnormal wear of the press.

In order to ensure uniform punching clearance and prevent uneven wear of the convex and concave molds, the mold must have sufficient strength, rigidity and positional accuracy. Therefore, the blanking die adopts an intermediate guide column type mold base. In order to meet the production requirements of large batches of R pallets, the blanking and concave die are made of Cr12 cold work die steel with better hardenability. In order to improve the manufacturing process of the mold, the convex and concave molds are processed by a matching method.

The convex and concave molds are positioned on the upper and lower mold bases, and the M12 screws are fastened to ensure the accuracy of the convex and concave mold positions. Elastic discharge and top piece devices are used to ensure that the blanking parts are flat. Considering the large size of the stripper plate and the top plate, the M10 discharge screw is used. The strip is guided by the guide pin and the positioning pin in the blanking die.

In order to simplify the structure of the mold and at the same time improve the utilization of the material, the first punching position of the strip is controlled by humans to ensure that the head edge is not less than 3 mm. The punching at other positions of the strip is determined by the positioning pin to ensure normal edge setting.

Fully Covered Frosted Glass

Frosted glass is a kind of privacy glass with an etched finish that obscures the view of someone looking through it, which makes it a great choice for windows in sensitive spaces – certain office doors or windows, front entryways, laundry areas, bedrooms and bathrooms, etc. Frosted Glass is usually made by either sandblasting or using an acid-etching process, and in addition to being used for privacy purposes, it`s also a great way to add aesthetic value to a piece of glass. In certain pieces, the frost on the glass is in the form of a decorative pattern – such as lines, dots or crosshatching.


Frosted glass can be processed into tempered frosted glass, frosted Laminated Glass, design frosted Tempered Glass , fully covered frosted tempered glass, frosted Insulated Glass, clear tempered frosted glass, ultra clear frosted tempered glass, color tinted tempered frosted glass and so on, all make to order.


Frosted glass, Acid Etched Glass, it widely be used for shower room, doors, partitions, fence, building walls, windows and so on. Fully covered frosted tempered is a kind of glass panel with translucent, without any transparent. Some photos for reference:

Toughened frosted glass

Glass Office PartitionsFrosted Tempered Cabinet Door Glassfrosted shower glass 1

Fully Covered Frosted Glass, Custom Frosted Glass, Plain Frosted Glass, Frosted Toughened Glass

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