Injection Mold Fan Gate Design

This is only possible how ever for certain materials such as thermoplastic elastomers.

Injection mold fan gate design.

Normally used with multi cavity two plate molds. 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. Plastic injection molding fan gate design. 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.

1 injection molding gate is a small opening between the runners and the mold cavity. It is used to create uniform flow into wide parts purpose 1. Used in large size molded product. 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.

Pinpoint or restricted gate a restricted opening between the runner and molded part. Thereby keeping the cross sectional area constant. It is used to create uniform flow into wide parts. In fact the fan gate is an extended design of the side gate.

Used like the disk gate. 2 the gate size is dependent on product weight material and gate types. Design fan gate is similar to the side gate but width of gate is bigger and has fan shaped. 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.

Molded part in the mold which is now loaded in the center. Fan or edge gate a common gate located in the sidewll of the part to prevent restriction of resin flow. Normally used with thin wall parts. Ring part must get filled first and then the cylinder part otherwise the weld will occur.

6 2 the edge or fan gate an edge gate is primarily used for molding parts with large surfaces and thin walls. Plastic injection molding fan gate design 4. An edge gate located below the parting line or molded surface. Have a great influence on product appearance dimensional physical characteristics and production efficiency.

If the injection molding requirements meet the smaller the number of gates are the better it is it would reduce the weld marks. You can read all the content. Plastic injection molding tab gate design 3. With the gate construction it permits rapid filling of large parts or fragile section mold area with large entry area.

The runner and gate system used in plastic injection molding is responsible for directing molten plastic from the nozzle of the molding machine into the cavity of the tool. It permits rapid filling of large parts or fragile section mold area with large entry area. Figure 6 2 curved sprue 6 3. It has the following advantages.

Used in large size molded product. 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. Its structure is similar to the side gate but gate width is bigger and fan shaped. 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.

It is used for the plastic part of a large area.