Patent ID: 6151870
Filing Date: 2000-11-28
Classification: B29C,B65B

Abstract:
A machine for packaging products using a plastic film comprises: at least a fixed frame (TF) and at least a mobile counter-frame (CM), said counter-frame can be moved between a lifted rest position and a lowered working position wherein the film is clamped against said frame (TF), the movement of the mobile counter-frame (CM) is controlled by at least a fluid-dynamic actuator (25) which is connected to the end of an extension (24) of said counter frame (CM) which is integral with a bell (12), said extension being connected at its mid-point to a machine frame (11) at a pivot point (13) wherein a link (26) positioned between said actuator (25) and said machine frame (11), said link being pivoted to the actuator (21) around a first axis (27) and also being pivoted to the frame (11) around a second axis (28), said link (26) being further provided with a control means (30) connected to a microswitch (32), in order to automatically stop the machine from working.