Patent ID: 6539689
Filing Date: 2003-04-01
Classification: B65B,B65G,B66C

Abstract:
A method for severing a bag mouth of a packaged body, comprising the steps of:in a device for producing a pull-out tube by passing a belt-shaped film (12) through tube-forming means (13), while touching a packaged matter (18) with each attachment (15) mounted at equal intervals on a feed conveyor (16) and pushing the packaged matter inside a film tube (14), and sealing and cutting said film tube (14) along a back-end reference line of each packaged matter (18) in a direction of travel of said film tube (14) to form a packaged body (30), and thereafter, carrying each packaged body (30) onto a surface plate (40) having a sealing mount (45), said surface plate (40) moving at equal intervals and comprising a part of a vacuum chamber (148), mechanically detecting as a numeric value a displacement between (a) a front end of the packaged matter (18) in the packaged body (30) being conveyed by an adjustable conveyer (35), and (b) the surface plate (40) moving in the same direction as the packaged body; and correcting said displacement numeric value to zero by changing speed of the adjustable conveyor (35) and positioning the front end of the packaged body (30) along a sealing mount (45) on a surface plate (40), then severing the bag mouth of the packaged body (30) with a cutter (70) positioned along said sealing mount (45).