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METHOD AND DEVICE FOR PRODUCING A CIRCULARLY CYLINDRICAL BODY, WHICH CONSISTS OF PLASTICS MATERIAL, WITH INTERNALLY DISPOSED HELICAL RECESSES
METHOD AND DEVICE FOR PRODUCING A CIRCULARLY CYLINDRICAL BODY, WHICH CONSISTS OF PLASTICS MATERIAL, WITH INTERNALLY DISPOSED HELICAL RECESSES
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机译:用于制造具有内部分布的螺旋形回弹的,由塑料制成的圆形圆柱体的方法和装置
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摘要
A method is for producing a circular cylindrical body (10) comprising a workable mass, having at least one helical internal cavity extending in the interior of the body. The body (10) is initially produced with a straight internal recess, for example by means of extrusion. Afterwards the body is cut to a defined length. The body (10) that has been cut to length is then subjected to a rolling process by means of a friction surface arrangement (23) while being supported over the entire length thereof on a support means (16). The rolling process takes place in multiple steps, wherein a rolling movement using a first axis of rotation (25) is performed in a first step, and a rolling movement using a second axis of rotation (26) that is different from the first axis of rotation is used in a second step. There is also an apparatus for performing the method.
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