Apparatus for manufacturing torsional spring |
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| 申请号 | JP25993984 | 申请日 | 1984-12-11 | 公开(公告)号 | JPS61137636A | 公开(公告)日 | 1986-06-25 |
| 申请人 | Itaya Seisakusho:Kk; | 发明人 | ITAYA REIJIRO; | ||||
| 摘要 | PURPOSE: To match exactly the delivery quantity and winding quantity of a wire and to form a torsion spring having high accuracy by providing a motor for rotating a wire winding tool, a motor for rotating wire delivery rollers and a control part for each motor. CONSTITUTION: The rotating speeds of a delivery motor 5 and a winding shaft motor 13 are controlled in the control part 19 so that the delivery quantity of the wire 1 fed by the delivery rollers 2a, 2b and the winding quantity of the wire 1 wound by the mandrel 10 of the winding tool 9 coincide exactly with each other. The length of the wire 1 between the rollers 2a, 2b and the tool 9 is thus maintained always constant and the tension on the wire 1 by the rollers 2a, 2b is eliminated and therefore the generation of an error in the winding angle according to the hardness, etc. of the wire 1 or the change in the length of the leg by the slip between a projecting part 11 and the wire 1 is obviated. Since the wire 1 is not drawn out by the friction with the projecting part 11, the instability of the torsion spring is obviated. COPYRIGHT: (C)1986,JPO&Japio |
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