| 摘要 |
A direct pressure type head for a blower injection molding machine is provided to easily change color of the resin by preventing resin from remaining in the head, and to move the resin to the rear side of the head at a fast speed and flow down the resin to a uniform thickness by forming the head such that a portion of the head at which a guide groove is brought into contact with the injection molding machine is deep and narrow while a lower portion of the head is wide and shallow. A direct pressure type head for a blower injection molding machine is characterized in that a guide groove(21) is formed in an upper side of the direct pressure type head, and a guide projection part(22) is formed in a lower portion of the guide groove to guide resin along the guide groove. The guide groove is formed in such a shape that a top portion(A) of the guide groove is deep while a bottom portion(B) of the guide groove is shallow. The direct pressure type head for a blower injection molding machine is formed such that a gap(C) between upper ends of the guide groove and guide projection part is narrow while a gap(D) between lower ends thereof is wide.
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