| 摘要 |
The present invention addresses the problem of inhibiting the leakage of plastic material from a space between a die and a head of an extrusion machine. A die is detachably attached to the inside of an attachment part of a die-reception member at a tip of a head, and rubber inside the head is extruded forwards from an extrusion port of the die. A first shaft is inserted into the die-reception member and a first hole in the head. An installation member is provided to the top of the die-reception member. By screwing a fastening bolt into a bolt hole in the installment member, and fastening a bolt to the top of a cover plate upon the die, the die is pressed against an inner bottom surface of the attachment part of the die-reception member. A second shaft is inserted into the installment member and a second hole in the die-reception member. Cam surfaces of the first shaft and the second shaft are brought into contact with each other. A bolt is fastened, and, as a result of the reaction force thereof, the cam surface of the first shaft and the cam surface of the second shaft press against each other. As a result of the cam action of the cam surfaces, the first shaft is pulled towards the head side, and the die is pressed against a front surface of the head. Accordingly, an effect whereby rubber leakage from the space between the die and the front surface of the head is inhibited is effectively exhibited. |
