FIELD: processes for making articles of sheet material, possibly corrugation of folded fillers.
SUBSTANCE: apparatus includes system of punches arranged at opposite sides of sheet material and turned one to other at mutual shifting; mechanism for cyclic motion of clamp of sheet material. At opposite side of sheet material dies made of elastic material are mounted opposite to punches and they are turned to them. Dies and punches are mounted in pairs inside casings arranged at different sides of sheet material.
EFFECT: improved quality of corrugated folded fillers.
7 cl, 3 dwg
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|---|---|---|---|
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|
RU2341347C2 |
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| METHOD OF PRODUCING FILLER CHEVRON-STRUCTURE SHEET AND DEVICE TO THIS END | 2009 |
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RU2426645C2 |
