Medicine packing unit and packing control method thereof

摘要

A medicament-packing unit contains a sheet feeder, a medicament-feeding hopper and a heat-sealing section. The sheet feeder feeds a packing sheet, folded into two in a longitudinal direction, to the heat-sealing section. The medicament-feeding hopper provides a medicament on the packing sheet fed by the sheet feeder. The heat-sealing section seals the packing sheet to pack the medicament provided on the packing sheet. The heat-sealing section contains a horizontal sealing roller, a first drive motor, a vertical sealing roller, a second drive motor, and a motor controller. The horizontal sealing roller seals the packing sheet in a horizontal direction. The first drive motor drives the horizontal sealing roller. The vertical sealing roller seals the packing sheet in a vertical direction. The second drive motor drives the vertical sealing roller. The motor controller controls the first drive motor and the second drive motor.

主权项

1. A method of packing a medicament, utilizing a medicament-packing unit comprising a first brushless motor for driving a horizontal sealing roller and a second brushless motor for driving a vertical sealing roller, the method comprising the steps of:
a first step wherein both the first brushless motor and the second brushless motor are OFF; a second step wherein the first brushless motor drives the horizontal sealing roller and the second brushless motor drives the vertical sealing roller until an amount of rotation of the horizontal sealing roller reaches a first amount; a third step wherein the first brushless motor continues driving the horizontal sealing roller and the second brushless motor is OFF until the amount of rotation of the horizontal sealing roller reaches a second amount; a fourth step wherein the first brushless motor continues driving the horizontal sealing roller and the second brushless motor drives the vertical sealing roller until the amount of rotation of the horizontal sealing roller reaches a third amount; and a fifth step wherein a subsequent packing work requirement is determined, wherein a step returns to the first step if there is no subsequent packing work requirement and wherein the second, third and fourth steps are repeated if there is a subsequent packing work requirement; wherein in the third step, a signal to clear a deviation between the horizontal sealing roller and the vertical sealing roller is transmitted while the second brushless motor is OFF.