FIELD: grinding worn automobile tires including those containing metal cords; grinding various rubber- containing wastes. SUBSTANCE: proposed punch press includes punch with sealing ring which is mounted at spaced relation over its inner diameter on packing. Outer diameter of sealing ring exceeds diameter of punch and its sizes ensure its sealing with engageable surface. Packing is secured on punch by means of screw strainer with key and is provided with locking washer to exclude its unscrewing. EFFECT: reduced number of parts; reduced labor consumption. 2 dwg
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Authors
Dates
2003-12-20—Published
2001-03-05—Filed