APPARATUS AND METHOD FOR MANUFACTURING RUBBER MEMBER

摘要

An apparatus for manufacturing a rubber member includes an extruder; a mouthpiece; and a support surface which faces the mouthpiece in an opposed manner. The apparatus further includes: a rubber pool portion formed between the mouthpiece and the support surface; and a closing surface having an inclined surface shape and capable of closing a moving-direction front side of the rubber pool portion. A rubber material is ejected from an ejection port in a state where the rubber pool portion is closed by the closing surface, the support surface and the mouthpiece are moved relative to each other after the rubber pool portion is filled with the rubber material, and a lamination starting end of the rubber material is pressed to the closing surface thus molding the lamination starting end into an inclined surface and, thereafter, the closing surface is moved in a direction away from the support surface.

主权项

1. An apparatus for manufacturing a rubber member, comprising: an extruder which kneads a rubber material and extrudes a kneaded rubber material; a mouthpiece which ejects the rubber material supplied from the extruder; and a support surface which faces the mouthpiece in an opposed manner, the support surface and the mouthpiece being moved relative to each other thus molding a rubber member made of the rubber material on the support surface, wherein
the apparatus further comprises: a rubber pool portion which is formed between the mouthpiece and the support surface and in which the rubber material ejected from an ejection port of the mouthpiece is pooled; and a closing surface which is capable of closing the rubber pool portion on a front side in a moving direction of the support surface with respect to the mouthpiece, the closing surface being inclined so as to narrow a distance between the closing surface and the support surface toward the front side in the moving direction, and wherein the rubber material is ejected from the ejection port in a state where the rubber pool portion is closed by the closing surface, the support surface and the mouthpiece are moved relative to each other after at least a portion of the rubber pool portion is filled with the rubber material, and a lamination starting end of the rubber material to the support surface is pressed to the closing surface thus molding the lamination starting end into an inclined surface shape and, thereafter, the closing surface is moved in a direction away from the support surface.