Injection Mold Fan Gate Design

Plastic injection molding fan gate design 4.

Injection mold fan gate design.

Used in large size molded product. Design fan gate is similar to the side gate but width of gate is bigger and has fan shaped. If the injection molding requirements meet the smaller the number of gates are the better it is it would reduce the weld marks. Normally used with thin wall parts.

It is used to create uniform flow into wide parts. Used in large size molded product. Thereby keeping the cross sectional area constant. Its structure is similar to the side gate but gate width is bigger and fan shaped.

Figure 6 2 curved sprue 6 3. An edge gate located below the parting line or molded surface. It permits rapid filling of large parts or fragile section mold area with large entry area. Have a great influence on product appearance dimensional physical characteristics and production efficiency.

It has the following advantages. 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. In fact the fan gate is an extended design of the side gate. 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.

Normally used with multi cavity two plate molds. If unavoidable the weld marks should be designed on the unimportant surface and non weak parts of. Their location quantity shape and size etc. 2 the gate size is dependent on product weight material and gate types.

Plastic injection molding tab gate design 3. It is used to create uniform flow into wide parts purpose 1. Plastic injection molding fan gate design. This is only possible how ever for certain materials such as thermoplastic elastomers.

It is used for the plastic part of a large area. Pinpoint or restricted gate a restricted opening between the runner and molded part. Used like the disk gate. 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.

1 injection molding gate is a small opening between the runners and the mold cavity. 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. Ring part must get filled first and then the cylinder part otherwise the weld will occur. You can read all the content.

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. But the test results show that. With the gate construction it permits rapid filling of large parts or fragile section mold area with large entry area. Fan or edge gate a common gate located in the sidewll of the part to prevent restriction of resin flow.

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.