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PISTON WIPER PLATE FOR PRESSING UNITS FOR MELTING SYSTEMS FOR BAGS AND MELTING SYSTEM FOR BAGS PROVIDED WITH SAID PISTON WIPER PLATE
PISTON WIPER PLATE FOR PRESSING UNITS FOR MELTING SYSTEMS FOR BAGS AND MELTING SYSTEM FOR BAGS PROVIDED WITH SAID PISTON WIPER PLATE
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机译:活塞式刮水器板的压制装置的活塞式刮水板和装有所述活塞式刮水器板的袋状的熔化系统
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摘要
A piston wiper plate for a pressing unit for melting systems for bags includes a single-piece wiper plate having an axial upper side and an axial bottom side made of elastically resilient material, and a radially outer wiper edge that surrounds the periphery in the relaxed state. The sealing and sliding properties thereof remain within a predetermined range even when the temperatures fluctuate more drastically in that in the wiper plate includes at least one recess that is inserted in the axial upper side and/or in the axial bottom side and/or between the axial upper and bottom sides thereof and that allows for at least a radial compression of the wiper plate. At least one expandable restoring element can be inserted into the recess.
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