초록 ▼

An automated bag filling machine particularly adapted to handle reclosable fastener strip profile-type plastic bags fed into the machine in a bag chain employs stations for opening, filling, reclosing, and separating filled and closed bags from the remainder of the chain. The drive means for conveyi

An automated bag filling machine particularly adapted to handle reclosable fastener strip profile-type plastic bags fed into the machine in a bag chain employs stations for opening, filling, reclosing, and separating filled and closed bags from the remainder of the chain. The drive means for conveying the chain through the filling mechanism include stroke control devices which enable the operation of the machine to be changed over for handling bags of different width sizes. Means are also provided for automatically preventing the bags in the chain from excessively over traveling their proper registration points with the various work stations.

대표청구항 ▼

An automatic packaging apparatus for vertically filling plastic bags laterally interconnected with one another in a chain wherein each bag has closed bottom and side edges and a reclosable upper end mouth having interlocking fastener strip profiles running laterally across opposed inner facing surfa

An automatic packaging apparatus for vertically filling plastic bags laterally interconnected with one another in a chain wherein each bag has closed bottom and side edges and a reclosable upper end mouth having interlocking fastener strip profiles running laterally across opposed inner facing surfaces of said mouth and wherein each bag is initially received in said apparatus with the fastener strip profiles interlocked, comprising: a first work station for unlocking the fastener strip profile and opening the mouth of each bag for filling, means for filling each bag, a second work station for relocking the fastener strip profiles of each bag after filling and for separating each filled and relocked bag from the remainder of said chain, a drive means for laterally conducting said chain through said first and second work station, said drive means alternately imparting forward and reverse stroke movements to said chain for conveying each bag of said chain from one work station to the other and separating each filled and relocked bag from the remainder of said chain, respectively, and a control means for adjusting the length of forward and reverse stroke movement imparted by said drive means such that said apparatus is adapted to handle bags of various lateral dimensions.