What's the function of plastic mold thimble at the crater?
Prevent product shrinkage
The purpose of this approach is that when the product is pushed out, the ejector pin and the ejector are not separated from the slide. Normally, this is applied to the gate thimble. Product thimble will not only have one, usually evenly distributed, many at the same time out, the product will not slide in the top of the process.When the manipulator is used, the ejector location is also fixed, which is convenient for the manipulator to take the gate. The gate into a crater shape, you can ensure that the top of the gate position is fixed, mainly this role.
Thimble at the crater is generally broken, it is not a crater, it is C angle products used in the direction of the crater, in the division of the tube more, that is, BOSS column on the product to prevent shrinkage
