Design requirements of zipper machinery

The zipper machine is the name of a device for processing zippers. The working principle of the zipper machine is equivalent to injecting the plasticized molten state (ie viscous flow state) plastic into the The process of obtaining plastic products after curing and shaping in a closed mold cavity. So after understanding the working principle of zipper machinery, do you also want to know the design requirements of zipper machinery? Next, I will introduce it to you. Zipper machinery is generally equipped with upper and lower parts. The ejector mechanism of the zipper machine can push the forging out of the die cavity in time, reduce the contact time between the forging and the die cavity, and prolong the life of the die. The design of the zipper machine is also convenient for the operator to pick up the forgings and reduce the labor intensity. When designing the top mechanism of the zipper machine, the following requirements should be considered: 1. The top mechanism of the zipper machine must have sufficient top force, usually the upper top force is 0.5~1 nm nominal pressure, and the lower top force is 1.5 Nominal pressure. 2. The ejector mechanism of the zipper machine must have a certain ejector stroke, and it is hoped that the ejector stroke is adjustable. Usually the zipper mechanical top piece and structure, the stroke of the upper top piece is (1.5~2.5) slider stroke, and the stroke of the lower top piece is (2~4.5) Pa slider stroke. For the pneumatic and hydraulic ejector mechanisms, the ejector stroke can be longer. 3. The ejector mechanism of the zipper machine should be reasonably designed. In order to avoid the collision between the ejected forging and the upper die, the speed of the lower ejector is required to be lower than the return speed of the slider. 4. In order to make it easier for the operator to hold the forging, the top mechanism of the zipper machine also needs to meet certain requirements when designing, that is, after the lower top mechanism pushes the forging out, it can stay at its highest position for a period of time, that is, the device should be installed. height retainer. Although the products produced by zipper machinery are small, they cannot be ignored in design. Generally, zipper machinery can achieve high-efficiency production for enterprises after being put into production normally, and the operation is simple, fast, and maintenance is convenient! The article comes from zipper machinery, please indicate when reprinting!