PLANT FOR PRODUCTION OF PLASTIC BAGS Russian patent published in 2016 - IPC B31B19/00 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to continuous production of plastic bags. Apparatus for continuously making plastic bags, each of which comprises a panel portion, side gusset portions and a portion of fastener comprises means for feeding material panels, overlay providing first and second pieces of fabric panels to each other and feed them in longitudinal direction; a device for joining material fasteners providing attachment of first element material fastener to first web of panel material and attaching second element material fastener to second web material panels to superposing first and second webs of material panels, a direction of first and second material fastener longitudinal direction of first and second webs of material panels and subsequent placement of he first and second fastener elements of material between first and second pieces of fabric panels and their alignment relative to each other after blending of first and second pieces of fabric panels each other; means for feeding side panel material, ensuring winding of material web of side panel from roll, its folding in half and feeding to first material web panels lay down across first material web panels prior to application of first and second pieces of fabric panels each other, and laying web side panel material between first and second webs of material after application of panels of first and second pieces of fabric panels each other, wherein web material has a width of side panel; and an additional connecting device provides a compound of third element material fastener to material web of side panel after winding of material web of side panel from roll before folding it in half and feeding to first web of panel material, and location of third element material fastener having a length corresponding to width of web material of side panel, across web of material of side panel, with subsequent folding in half a web of material of side panel and its feed to first material web panels provides storage third element material buckles under influence of material web lateral insertion and placement between first and second members material fastener after blending first and second pieces of fabric panels each other, first and second members material fastener aligned with third element material fastener, wherein panel portion is formed from first and second webs of material panels, portion of side panel is formed from a web of side panel material, and portion fasteners formed first, second and third elements of fastener material.

EFFECT: technical result is improvement of installation for continuous production of plastic bags.

8 cl, 6 dwg