Computer controlled horizontal wrapper

Details Computer controlled horizontal wrapper Computer controlled horizontal wrapper

B - Operations, Transporting

65

B

342/11, 156/32,

B65B 9/06 (2006.01) B65B 57/00 (2006.01) B65B 57/04 (2006.01)

Patent

CA 1263595

ABSTRACT The horizontal wrapping machine of the type werein a succession of articles are fed into a traveling tube of web material which is sealed longitudinally and severed and sealed between the articles to produce individual hermetically sealed packages. A conventional D.C. motor drives a conveyor which may be provided with article feeding flights and a switch, actuated once each revolution of the motor shaft, provides a pulse corresponding to each flight on the article feeding conveyor. In addition an encoder driven by the D.C. motor shaft provides a digital velocity signal used as a reference signal for servo motors that may be coupled, in combination or individually, to drive web feed rolls, longitudinal sealing wheels and one or more sealing and severing heads. A delivery conveyor transporting individual packages may, through a suitable drive train, be driven by the D.C. motor. The velocity of the servo motors is established and controlled through an industrial computer, at a percentage of the velocity of the D.C. motor. Thus, the digital velocity signal input to the computer by the D.C. motor establishes a reference velocity for the velocity of the servo motors.

508627

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