Injection Mold Fan Gate Design

If unavoidable the weld marks should be designed on the unimportant surface and non weak parts of.

Injection mold fan gate design.

Plastic injection molding tab gate design 3. Ring part must get filled first and then the cylinder part otherwise the weld will occur. Normally used with thin wall parts. 6 2 the edge or fan gate an edge gate is primarily used for molding parts with large surfaces and thin walls.

Normally used with multi cavity two plate molds. Their location quantity shape and size etc. But the test results show that. Fan gate is a gate spreading toward in to cavity basically this gate is thin similarly with previous gate and is used in same purpose with film gate.

Have a great influence on product appearance dimensional physical characteristics and production efficiency. Plastic injection molding fan gate design 4. Fan or edge gate a common gate located in the sidewll of the part to prevent restriction of resin flow. It is used to create uniform flow into wide parts purpose 1.

Its structure is similar to the side gate but gate width is bigger and fan shaped. Thereby keeping the cross sectional area constant. It is used to create uniform flow into wide parts. Design fan gate is similar to the side gate but width of gate is bigger and has fan shaped.

It is used for the plastic part of a large area. Since the curved core is subjected to the injection force the core is pushed to the opposite side so that the pipe cannot be molding. Used in large size molded product. 1 injection molding gate is a small opening between the runners and the mold cavity.

The gate architecture and its location affects cycle times tooling costs lead times the location of witness marks and many other potential defects that are commonplace for injection molded parts. This is only possible how ever for certain materials such as thermoplastic elastomers. The purpose is to make the gate position of the mold consistent with the center of the mold to avoid the gate offset of the mold. If the injection molding requirements meet the smaller the number of gates are the better it is it would reduce the weld marks.

Molded part in the mold which is now loaded in the center. Gate is a passage way from the subrunner to the mold cavity and its cross section is the smallest and shortest part in the injection system. It has the following advantages. With the gate construction it permits rapid filling of large parts or fragile section mold area with large entry area.

Used like the disk gate. Position number shape and size of the gate have a direct impact on the quality and the appearance of the product and therefore in the design process attention is required for gate style. An edge gate located below the parting line or molded surface. Used in large size molded product.

2 the gate size is dependent on product weight material and gate types. Pinpoint or restricted gate a restricted opening between the runner and molded part. It permits rapid filling of large parts or fragile section mold area with large entry area. Figure 6 2 curved sprue 6 3.

Plastic injection molding fan gate design.