| 摘要 |
PURPOSE: A device for preventing backflow of materials in a shoe sole forming mold is provided to diminish a product failure rate because all materials inserted in a runner are inserted to forming spaces of upper and lower molds so that material residues are prevented. CONSTITUTION: A device for preventing backflow of materials in a shoe sole forming mold comprises a guide block(32), a slider(36), and a through-hole(38). The guide block is fixed to upper-front of a upper mold(10). The slider moves top and bottom along a guide hole of the guide block. The slider is attached to a runner's(22) entrance(22a) of a lower mold(20). The through-hole is pierced in a center of the slider. Liquid materials inserted from outside are passed the runner through the through-hole connected to the runner's entrance of a lower mold. |
