1、According to the nature of the process

(1) hardware mould manufacturer drop die is used to separate materials along the closed or open contour. Such as drop die, punching die, cutting die, longitudinal cutting die, cutting edge die, cutting die, etc. 

(2) Bending die to make plate blank or other blank along the straight line (bending line) bending deformation to obtain a certain angle and shape of the workpiece.

(3) Deep punching dies are used to make open hollow parts of sheet blanks, or to further change the shape and size of the hollow parts.

(4) The forming die is a die that directly replicates a blank or semi-finished workpiece according to the shape of the convex and concave die, where the material itself only produces local plastic deformation. Such as expansion moulds, shrinkage moulds, flaring moulds, corrugated moulds, flanging moulds, forming moulds, etc. 

2、By process combination 

(1) Single process die A die in which the punch only completes one stamping process in one stroke.

(2) Compound die with only one work station. In one stroke of the punch, the same station can complete two or more punching processes at the same time.

(3) A progressive die (also called a continuous die) has two or more stations in the direction of the feed of the blank. In one stroke of the press, two or more passes are completed one after the other at different stations. A die used for the above-mentioned stamping process.

One of the key components of the die accessories is the die spring.

Die springs include: Japanese standard die springs, German standard die springs, springs, polyurethane springs, and usually die springs refer to rectangular die springs.

Die springs are widely used in stamping dies, metal die-casting moulds, plastic moulds and other elastic motion precision machinery, automobiles and other fields. Die spring material generally uses chrome alloy steel, hardware mold manufacturer chrome alloy spring steel has high temperature resistance, high rigidity, long life characteristics. Rectangular mold spring has a small size, good elasticity, high rigidity, high precision, the material is rectangular, the surface colour spraying (plating) to distinguish between different loads, beautiful appearance and other characteristics.

II. Mould design 

1, material direction research (product materials, mould materials). 

2、The size of the mould gap. 

3、The position and quantity of guide pins are sufficient. 

4、Whether the rebound of the waste is considered and whether the feeding of the mould is smooth. 

5、Whether the monitor and waste rebound sensor are designed. 

6、The correct choice of positioning plates and floating pins. 

7、Is the number, size and position of the bolts (including the unloading bolts) selected properly. 

8、Consider the punching force and select the punching head.