Film clamping and cutting device of film wrapping machine

摘要

A film clamping and cutting device of a film wrapping machine is revealed. A connecting plate of a film clamping and cutting unit is located by a braking part. Moreover, by moment of a rotating machinery before stopping, a film clamping and cutting unit main body assembled on the rotating machinery is driven to continue moving. Under the movement of the unit main body, a pulling force is generated by a pull cord arranged between the connecting plate and a vertical-wheel of the unit main body. The pulling force rotates the vertical-wheel so that both a film clamping and cutting rod assembled with the vertical-wheel and a clamp fall toward a blade block to clamp and cut off a film. The film is also pulled and cut by an elastic recovery force of the film clamping and cutting rod. Therefore automatic film clamping and cutting is carried out.

主权项

1. A film clamping and cutting device of a film wrapping machine comprising:
a braking part having a basal body with a power source mounted there and the power source assembled with a stop plate; and a film clamping and cutting unit including a unit main body disposed with a guiding plate and a curved guiding slot formed on the guiding plate while the curved guiding slot is mounted with a retaining block for steel wire ropes therein; a connecting plate is disposed over the retaining block for steel wire ropes and the connecting plate is arranged with a projecting block which is corresponding to the stop plate of the braking part; one end of a pull cord is connected to the bottom of the connecting plate while the other end of the pull cord is connected to and assembled with a vertical-wheel pivoted to the unit main body; a plurality of guiding wheels is assembled on the unit main body and located between the vertical-wheel and the connecting plate; the pull cord is wound around both the vertical-wheel and the guiding wheels and the vertical-wheel is assembled with a film clamping and cutting rod with a clamp on a front end thereof while a blade is arranged at a rear side of the front end of the film clamping and cutting rod and is corresponding to the clamp; an elastic body is disposed on the vertical-wheel and a blade block is disposed on the unit main body, located on the position that the blade falls.