DEVICE FOR MANUFACTURING COIL SPRING AND METHOD FOR MANUFACTURING COIL SPRING
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United States of America Patent
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Nov 20, 2017
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Jun 4, 2015
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Abstract
The coil spring manufacturing device includes a first continuous material mounting portion, a second continuous material mounting portion, a straightener, a cutter, a short material mounting portion, and a coiling machine. The material reeled out from a first continuous material or a second continuous material is cut by the cutter. The coil spring manufacturing device can switch a process among a first continuous material coiling process of manufacturing a coil spring by using the first continuous material, a second continuous material coiling process of manufacturing a coil spring by using the second continuous material, and a short material coiling process of manufacturing a coil spring by using the short material.
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