New HASCO cylinder for optimal control for ejector plates Z2371 / ... Z2380 / ...
Multiple systems require hot cavities and small distances to the nozzle needle concluded. In these cases there is sufficient surface area of
Z tohoto dôvodu boli vyvinuté valce na zabezpečenie pohybu dosiek pre vyhadzovače väčších rozmerov a s nenáročným servisom. Na posuv možno použiť hydrauliku alebo pneumatiku.
Pri pneumatike Z2371/ je piest tesnený krúžkami z vitonu a je osadený do diery v upínacej doske. Spojenie piestu s doskami vyhadzovačov je centrálne pomocou skrutky. Pri servisnom zásahu zostáva piest v doske a s doskami vyhadzovačov sa dá samostatne manipulovať. Zo strany stroja je systém utesnený vekom a krúžkom. Geometria priestoru pre zabudovanie piestu je nenáročná a s minimálnymi nákladmi.
Pri hydraulike Z2380/ je piest dodatočne osadený zhotoveným puzdrom. Vnútornú plochu puzdra treba upraviť na požiadavky tesnosti hydrauliky. Uvedené riešenie zabezpečí tieto požiadavky.
Tak ako pri pneumatickom prevedení, aj tu je spojenie s doskami pomocou skrutky . Konštrukcia hydraulického systému zostáva uzavretá a nedochádza k znečisteniu olejom.
Osadenie pre piest v upínacej doske je nenáročné na zhotovenie a s minimálnymi nákladmi. Prívodné kanále sú umiestnené tak, aby sa zabránilo poškodeniu tesniacich krúžkov pri vkladaní piestu.
- autor:
- Anette Lampe
-
HASCO AUSTRIA GmbH
Standardized parts for the production of plastic moulds, hot runner systems.
- www.hasco.com
- Industriestrasse, Guntramsdorf
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