process for the verification of the correct implementation of bags with bottom valve to cross.

摘要

for the implementation of bags with bottom valve to cross the ends of tubular segments collected in continuous are opened.forming of the so-called "square bottom" with opposing angular triangular inserts.on one side of a square of open fund is applied a leaflet valve or a segment of a tubular, so that this form.after the closure of the lateral overlapping inserts the fund opened, a tube valve which leads inside the bag.the outer end is freely accessible from one side of the bottom.in order to verify the correct position of the valve pipe valve leaflets or, respectively, the area of the insert element covered by the valve or valve leaflet respectively from the tube in the event ofa fastening or the right leaflet valve or pipe valve respectively are equipped with a marking detectable by a photo cell device fixed to the body.the device is activated by a pulse to a photo cell reference, when the fund has reached production plant, the position control system.the bags with tubes or sheets valve in position not correct are discarded.