Vacuum moulding machine

Abstract

Abstract A VACUUM MOULDING MACHINE FOR FORMING UNILATERALLY DIRECTED PROJECTING MOULDS IN CONTINUOUS WEBS OF THERMOPLASTIC SYNTHETIC MATERIAL, COMPRISING A DRIVEN ROTATABLE DRUM, A PLURALITY OF SUCTION MOULDS DISPOSED PERPHERALLY AROUND THE DRUM, AN AUTOMATICALLY CONTROLLED VACUUM DISTRIBUTOR DEVICE CONNECTING THE SUCTION MOULDS TO A VACUUM, AND AN ENDLESS CUTTING BAND TRAVERSING THE WEB WITH ITS CUTTING PORTION PARALLEL AND ADJACENT TO THE WEB ON THE SIDE OF THE PROJECTING MOULDINGS WITH ITS CUTTING EDGE DIRECTED IN THE OPPOSITE DIRECTION TO THE DIRECTION OF MOVEMENT OF THE WEB, THE WEB PASSING AROUND AND HELD BY SUCTION IN CONTACT WITH THE MOULDS ON A PORTION OF THE DRUM PERPHIERY WHILE THE MOULDS ARE FORMED UNILATERALLY IN THE WEB AND THE CUTTING DEVICE CUTS THE MOULDED PORTIONS FROM THE WEB. THE CUTTING BAND IS ASKEW TO THE DIRECTION OF WEB MOVEMENT AND GUIDES ARE PROVIDED FOR THE BAND CUTTING PORTION. A SUPPORT IS PROVIDED FOR THE WEB ADJACENT TO THE CUTTING BAND AND THRUST ROLLERS PRESS THE WEB EDGES AGAINST THE SUPPORT. STACKING MEANS ARE PROVIDED FOR STACKING THE MOULDS SEVERED FROM THE WEB.

Inventors

• 👤 Nerio Martelli

Bibliographic Details