Vacuum-powered film-applying mechanism

摘要

A vacuum-powered film-applying mechanism for applying a flexible film to a workpiece includes a bracket, a suction member, and a rotating joint. The suction member is rotatably mounted on the bracket, and defines a peripheral surface and a plurality of suction chambers therein, and by virtue of a vacuum created in the interior of the suction member, a length of flexible film is attracted and adhered. The rotating joint on the bracket communicates with the plurality of the suction chamber, through the rotating joint, air is supplied and exhausted from the plurality of suction chambers progressively, on a one by one basis, to pick up and roll the flexible film onto itself, and by supplying air to the plurality of suction chambers one by one, unrolls and releases the flexible film onto the workpiece with a low incidence of trapping air bubbles.

主权项

1. A vacuum-powered film-applying mechanism for adhering a flexible film to a workpiece, comprising:
a bracket comprising a rotating shaft; a suction member rotatably sleeved on the rotating shaft, and defining a peripheral suction surface along a periphery thereof and a plurality of suction chambers therein, the peripheral suction surface defining a plurality of suction holes respectively communicating with the plurality of suction chambers; and a rotating joint rotatably sleeved on the rotating shaft and defining a plurality of air conduits respectively communicating with the plurality of the suction chambers, wherein when the suction member is rotated to suck the flexible film, the rotating joint is capable of exhausting air from the plurality of suction chambers one by one to enable the suction member to be sticking to and rolling the flexible film thereon, when the suction member is rotated to adhere the flexible film to the workpiece, the rotating joint is capable of supplying air to the plurality of suction chambers one by one to enable the suction member to unroll and release the flexible film.