Specific operations carried out during bag making

BPERFORMING OPERATIONS TRANSPORTING B31Paper goods B31BMAKING BOXES, CARTONS, ENVELOPES OR BAGS OF PAPER OR CARDBOARD

B31B2219/00Specific operations carried out during bag making

B31B2219/02Feeding or positioning webs, sheets or bags B31B2219/022Feeding or positioning webs B31B2219/024Feeding or positioning sheets B31B2219/026Holders for feeding or positioning sheets or webs B31B2219/028the holders rotating B31B2219/14Cutting, perforating, punching, slitting, trimming B31B2219/141using presses or dies B31B2219/142using tools mounted on belts or chains B31B2219/143using tools mounted on a drum B31B2219/145Cutting webs B31B2219/146slitting webs longitudinally B31B2219/147Cutting sheets B31B2219/148Cutting-out portions from the sides of webs or sheets B31B2219/22Shaping, other-wise than folding, sheet material under pressure B31B2219/225using punches or dies B31B2219/23Stiffening, reinforcing bags B31B2219/25Surface scoring B31B2219/252using presses or dies B31B2219/255using tools mounted on belts or chains B31B2219/257using tools mounted on a drum B31B2219/26Folding sheets or webs B31B2219/2609around mandrels B31B2219/2618the mandrels moving B31B2219/2627by continuously feeding same to stationary members B31B2219/2636by plungers moving through folding dies B31B2219/2645by reciprocating or oscillating members B31B2219/2654by rotary members co-operating with blades B31B2219/2663by moving belts or chains B31B2219/2672involving transversely folding B31B2219/2681involving longitudinally folding B31B2219/269involving gusset-forming B31B2219/28Opening or distending bags B31B2219/29Closing bags B31B2219/60Uniting opposed surfaces or edges Taping B31B2219/6007by adhesives B31B2219/6015Arrangements for permitting the glue to set B31B2219/6023Applying glue on moving webs to form tubular webs B31B2219/603by applying heat or pressure B31B2219/6038using sealing jaws or sealing dies B31B2219/6046on piled sheets B31B2219/6053Making seals parallel to the direction of movement B31B2219/6061Making seals transversally to the direction of movement B31B2219/6069using tools mounted on belts or chains B31B2219/6076using tools mounted on a drum B31B2219/6084by stitching, stapling, or riveting B31B2219/6092by applying or securing strips or tape B31B2219/61Moistening Drying Cooling Heating B31B2219/62Coating Impregnating Water proofing Decoating B31B2219/88Printing or embossing B31B2219/90Forming or attaching accessories B31B2219/9003Applying patches, strips or strings on sheets or webs B31B2219/9006Applying patches B31B2219/9009Applying strips B31B2219/9012Applying closure elements B31B2219/9016Making bags having interengaging closure elements B31B2219/9019Applying the closure elements in the machine direction B31B2219/9022Applying the closure elements in the cross direction B31B2219/9025Applying strings Making string-closed bags B31B2219/9029the strings being applied in the machine direction B31B2219/9032the strings being applied in the cross direction B31B2219/9035the ends of the strings being attached to the side edges of the bags B31B2219/9038Forming or attaching windows B31B2219/9041by making paper transparent or translucent, by applying transparent melt B31B2219/9045involving applying window patches B31B2219/9048involving cutting windows B31B2219/9051Forming valves or applying valve inserts B31B2219/9054Applying rigid valves, spouts, or filling tubes B31B2219/9058Forming valves integral with the bags B31B2219/9061by deforming B31B2219/9064involving turning the bags inside out B31B2219/9067Applying patches or flexible valve inserts B31B2219/907Applying valve inserts on tubular webs B31B2219/9074Forming integral handles or mounting separate handles B31B2219/9077Mounting separate handles on bags, sheets or webs B31B2219/908Applying handles on a moving web followed by longitudinal folding B31B2219/9083Applying handles on a moving web followed by transverse folding B31B2219/9087Applying handles on one side of a moving longitudinally folded web B31B2219/909Forming integral handles on bags B31B2219/9093involving punching or cutting B31B2219/9096involving application of reinforcement strips or patches involving reinforcements obtained by folding B31B2219/92Delivering B31B2219/921singly or in succession B31B2219/922in overlapping arrangement B31B2219/923by winding up B31B2219/924the bags being interconnected B31B2219/925in stacks or bundles B31B2219/926involving folding of the bags B31B2219/927Stacking bags on wicket pins B31B2219/928Stacking bags by means of a rotary stacking drum B31B2219/929Assembling or block-forming of bags Loading bags on a mandrel B31B2219/94Involving a particular layout of the machinery or relative arrangement of its subunits B31B2219/95Controlling Regulating Measuring Safety measures