High precision low MOQ stainless steel Screws and bolts by height adjustment for precision mould making

Product introduction:
The plug screw is also called the shoulder screw, the stop screw, the stop bolt, the brake bolt, etc.; the plug screw is used together with the bolt pull rod, mainly for controlling the fixed mold seat plate in the three-plate mold, the flow channel push plate Mold fittings for the mold opening stroke between the die and the die. Since it can be set to the parting surface of the mold, the mold design can be miniaturized.

These products have high hardness, good toughness, excellent wear resistance and heat resistance. They are suitable for precision molds and can significantly improve their service life. Especially the hot shape of precision molds has become effective control, suitable for high temperature working environment. Mold. The plug screw constitutes the attribute material: SCM435, hardness: 33 ~ 38HRC.

The stuff screw is also called the shoulder screw, the stop screw, the stop bolt, the brake bolt, etc.; the plug screw is used together with the bolt pull rod, mainly for controlling the fixed mold seat plate in the three-plate mold, the flow channel push plate Mold fittings for the mold opening stroke between the die and the die.

Installation principle:

1. The shaft diameter is the matching specification, and it is convenient to use the plug screw and bolt pull rod. For example, when using the D20 stop bolt, it is recommended to use the D20 bolt pull rod;
2. When the tapping screw is used for the thickness of the seat plate, the bolt head is designed to be buried into the seat plate by 2 mm.
Therefore, the relationship between the counterbore depth (W) and the stroke amount (S) is:
[W=S+ plug screw shoulder thickness K+2]
L = seat plate thickness - (stop bolt shoulder thickness K + 2);
3. When the thickness of the runner is used, the thread length l of the plug screw embedded in the bolt of the bolt is set to 1.5 times the diameter of the thread.
In this state, the threaded portion of the plug screw has a margin of 8 mm, and the countersunk hole of the spring can be machined on the flow path push plate as shown in the mounting diagram.
E=(plug screw diameter M×1.5)+channel push plate thickness.