How to choose a leather cutting machine? [have been solved]
How to choose a leather cutting machine?
Introduction of leather products:
Leather is made from physical and chemical processes such as depilation and tanning. Leather is made up of natural protein fiber in three-dimensional space. Its surface has a special grain layer, with natural grain and gloss and comfortable hand.
In the process of human evolution, it is found that some plant juice or mineral oil has a certain tannability to leather. The skin of the raw material is soaked through the juice, and it is more breathable and anticorrosive. So that the board has softness, tear resistance, tortuosity and other physical and chemical properties. Leather in this period really possessed the characteristics of leather products. And this juice is called a tanning agent. Tanning industry developed into the middle of last century, forming stable tanning agents can be roughly divided into the following three categories:
1. vegetable tanning agent: tannin extract is mainly used for industrial leather or base leather.
2. mineral tanning agents: chromate and aluminum salts are used for all kinds of civilian leather. Such as clothing.
3. organic tanning agents: mainly formaldehyde, glutaraldehyde, etc., for fur fur and all kinds of fine leather.
Leather cutting machine:
The characteristics of the leather hydraulic cutting machine are that the pressure in the cylinder does not reach the rated pressure when the cutting head acts on the processed material through the tool die. The pressure will increase with the increase of the contact time, until the electromagnetic reversing valve receives the signal, changes the direction of the valve and begins to reset the cutting head. When the pressure in the oil cylinder is limited by the pressure of the cylinder, it may not reach the rated pressure value; that is to say, the pressure of the system has not reached the design value, and the punching is completed.
It is widely used in leather and shoes, handbags and bags, gloves and hats, crafts and silk flowers, embroidery, jigsaw and card making, plastic and packaging, printing and paper, stationery, plastic chemical, automobile and electronics and other light industry industries.