| 摘要 |
PROBLEM TO BE SOLVED: To provide a heating cylinder for an injection molding machine in which when accompanied with using the heating cylinder for a long time, the inner wall of the heating cylinder is worn and the heating cylinder is exchanged, it is enough that only a heating head is exchanged and expenditure for the work can be reduced and the work for exchange is easily performed and even when a resin material is solidified in the heating cylinder, unnecessary articles can be removed. SOLUTION: In the heating cylinder 1 for the injection molding machine constituted of a heating cylinder being separable to a heating cylinder main body 2 and the heating cylinder head 3, the connecting part on the heating cylinder side of the heating cylinder head 3 is a long cylinder 12 with a ratio of the cylindrical inner diameter to the length in the connecting direction of approximately 1 versus 16 and a male screw channel 13 is cut at the apex of the outside wall of the long cylinder 12 and a female screw channel corresponding to the male screw channel 13 is cut on the inside wall of a receiving cylinder 14 into which the long cylinder 12 on the heating cylinder side of the heating cylinder main body 2 is correspondingly inserted and screw-fixed and for the heating cylinder 1, the long cylinder 12 of the heating cylinder head 3 is inserted into the receiving cylinder of the heating cylinder main body 2 and the male screw channel 13 of the heating cylinder heat 3 is screw-fixed with the female screw channel 15 of the heating cylinder main body 2.
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