1 injection molding gate is a small opening between the runners and the mold cavity.
Injection mold fan gate design.
This is only possible how ever for certain materials such as thermoplastic elastomers.
Pinpoint or restricted gate a restricted opening between the runner and molded part.
Normally used with multi cavity two plate molds.
Have a great influence on product appearance dimensional physical characteristics and production efficiency.
But the test results show that.
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.
You can read all the content.
6 2 the edge or fan gate an edge gate is primarily used for molding parts with large surfaces and thin walls.
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.
Figure 6 2 curved sprue 6 3.
Used in large size molded product.
Plastic injection molding fan gate design 4.
An edge gate located below the parting line or molded surface.
If unavoidable the weld marks should be designed on the unimportant surface and non weak parts of.
It is used to create uniform flow into wide parts.
It permits rapid filling of large parts or fragile section mold area with large entry area.
Design fan gate is similar to the side gate but width of gate is bigger and has fan shaped.
Ring part must get filled first and then the cylinder part otherwise the weld will occur.
Their location quantity shape and size etc.
In fact the fan gate is an extended design of the side gate.
Used in large size molded product.
Thereby keeping the cross sectional area constant.
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.
Molded part in the mold which is now loaded in the center.
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.
Fan or edge gate a common gate located in the sidewll of the part to prevent restriction of resin flow.
Plastic injection molding tab gate design 3.
Used like the disk gate.
If the injection molding requirements meet the smaller the number of gates are the better it is it would reduce the weld marks.
Its structure is similar to the side gate but gate width is bigger and fan shaped.
Normally used with thin wall parts.
2 the gate size is dependent on product weight material and gate types.
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.
It is used for the plastic part of a large area.
It is used to create uniform flow into wide parts purpose 1.