AUTOMATIC SEALING HEIGHT ADJUSTING DEVICE FOR END SEALING MECHANISM OF PACKAGING MACHINE

摘要

PURPOSE:To automate adjusting work of a sealing height by a method wherein the title device is equipped with a revolution number detecting device which detects the revolution number of either one of rotating shafts in a driving system by a driving motor, and operation control of the driving motor is performed by feeding back detecting signals from the revolution number detecting device. CONSTITUTION:To a control panel 52, detecting signals from a pulse counting sensor 40, upper limit detecting sensor 47 and lower limit detecting sensor 48, etc. are input as input signals, and as output signals, control signals to a driving motor 36, etc. are output. The sort of set modes is respectively selected by an original point setting mode selecting unit 53 or height setting mode selecting unit 54. By memory operation elements such as a microcomputer, etc. which is built in the control panel 52, a required number of rotation of a rotary shaft 29, which matches a moving quantity required to move from a present position, where the engaging height of an end sealer is stored, to a target height which is calculated, based on the height of an articles to be packaged, or a target height which is set, is operated. Based on this required revolution number, operation of the driving motor 36 is automatically controlled while feeding back detecting signals from the pulse counting sensor 40.