摘要:
A method for the manufacture of rolls of pre-cut bags with punched handles, of the type with "star" or "tomato" base, comprising the steps of: sliding movement of a tubular film (10) in plastic material, formation of two opposite gussets (12, 14) along side edges of said tubular film, single folding of said tubular film (10) gusseted along a median longitudinal axis (17), insertion of a layer of Teflon (38) between said gussets (12, 14) of the single-folded tubular film (10) with function of insulant to prevent that the first gusset (12) and the second gusset (14) can weld one to the other, formation of a transverse precutting line (23) apt to define a line of separation between single bags (15) of said tubular film, formation of a transverse welding line (16) at a base of the single bag (15) and of a transverse welding line (9) at handles (11) of the adjacent bag (15), punching of the single-folded tubular film (10) to define handles (11) of the bags (15), winding of said tubular film to form a roll of bags (15) and wherein the steps of performance of the transverse pre-cut (23), welding (16) of the base and welding (9) of the handles (11) of the single bags (15) are carried out in a simultaneous way with the transverse welding (16) of the base of a bag (15) performed downstream of the transverse welding (9) of the handles of the successive and adjacent bag.
摘要:
La présente invention est relative à un procédé de fabrication d'un chapelet (C) de sachets d'emballage (S) formés de deux parois (21, 22), selon lequel on met en oeuvre les étapes suivantes : a) on utilise une feuille (2) de matière plastique repliée longitudinalement sur elle-même, ou deux feuilles distinctes, pour délimiter deux parois parallèles ; b) on conforme la région de raccordement des parois (21, 22) de ladite feuille (2) pour lui donner un profil à soufflet en "M" ; c) on fixe longitudinalement des profilés de fermeture complémentaires sur les faces en regard de ce soufflet, et, ensuite d) on individualise, lesdits sachets (S) deux à deux, en réalisant une séparation (25) et une soudure perpendiculaires auxdits profilés (30, 31),
caractérisé par le fait qu'on met en place un curseur (5) sur lesdits profilés avant la mise en oeuvre de ladite étape d).
摘要:
Bei einem Verfahren zur Herstellung von Beuteln (6) aus Kunststofffolie, insbesondere von Eiswürfelbeuteln, wird zunächst eine doppellagige Folienbahn (1, 2) zu einer Faltstation zugeführt, um dann mindestens einen Randabschnitt längs der Bewegungsrichtung der Folienbahn (1, 2) derart zu falten, dass die zwei äußeren Kanten (5) des Randabschnittes nach innen zwischen die zwei Folienbahnen (1, 2) zur Bildung eines randseitigen vierlagigen streifenförmigen Abschnittes (4) bewegt werden. Anschließend wird die Folienbahn (1, 2) zur Bildung von Beuteln (6) miteinander verschweißt, wobei im Bereich des vierlagigen Abschnittes (4) eine Öffnung (10) zur Befüllung des Beutels belassen wird, und ein Bereich zwischen zwei benachbarten Beuteln (6) perforiert wird, damit diese voneinander trennbar sind. Die so gebildete Bahn aus Beuteln (6) lässt sich auf einer Rolle 23 aufwickeln und platzsparend mit minimalem Verpackungsaufwand vertreiben.
摘要:
A high speed method of manufacture of filled polyethylene pouches from polyethylene film comprising the steps of folding the film and causing it to move in folded flat form transversely sealing the film at longitudinally spaced intervals forming a continuous length of open edged unfilled polyethylene pouches, perforating the strip or web forming transversely extending longitudinally spaced lines of perforations between the pouches, exerting a vacuum upon the strip or web holding down sides of the unfilled pouches to stabilize the held sides thereof, blowing air at the open edged unfilled polyethylene pouches separating unheld sides of the pouches away from the vacuum held sides of the pouches, thus consecutively opening the pouches preparatory for filling the pouches, filling the pouches by moving articles to be packaged into the opened unfilled ends of the pouches, sealing the open ends of the filled pouches, and severing the pouches from the continuous strip for cartoning.
摘要:
An improved assembly of bags (70) which forms individual bags (100) connected in a continuous assembly with a line of perforations (50) between each of the bags. The bag assembly (70) is particularly suitable for indexing before a packing machine (88) for packing the individual bags with the bags being separable by tearing each bag off the assembly at the line of perforations (50).
摘要:
L'invention concerne un assemblage continu de plis postaux ou autres du type dans lequel les feuillets continus supérieur et inférieur formant respectivement les faces et les dos des enveloppes sont réunis entre eux en fin de façonnage, dans un poste de scellement, par thermocollage pour enserrer des documents intérieurs ou inserts qui sont libres et introduits entre lesdits feuillets après leur passage dans l'imprimante. Selon l'invention, les inserts proviennent du sectionnement d'au moins deux nappes minces superposées, chaque nappe étant constituée par un feuillet continu distinct ou par l'un des panneaux d'un feuillet continu (10) plié longitudinalement, qu'au moins l'une de ces nappes est munie le long de lignes (35) et/ou autour de plages déterminées d'une enduction de colle activable par la chaleur, de manière telle que le passage de l'assemblage dans le poste de scellement entraîne la création, à l'intérieur de chaque pli unitaire d'un nouvel objet par superposition et solidarisation des inserts ou d'une partie détachable (32a, 32b) de ces derniers.
摘要:
There is provided a method for manufacturing pre-padded food-containing bag (10) by perforating across a continuous web (11) of flattened tubular thermoplastic material, forming an opening in a layer of the perforated web, separating the layers (13,14) of the web, inserting an absorbent pad (25) through the opening (20) into the inside of the tubular web and making a seal (30) across the tubular web (11) at predetermined lengths to form a bag (10). The result is that a continuous web of bags containing absorbent pads at discrete intervals. There is also provided an apparatus for carrying out the method.
摘要:
A process for assembling wave-cut trash bags for overlapping dispensing includes the steps of providing a flattened blown-film polymeric tube (12); providing sets of closely spaced, parallel seals (22) extending across the entire width of the flattened tube (12) at periodic intervals there along; providing a transversely extending line of perforations (24) between the seals (22) comprising each set of closely spaced, parallel seals; and providing a wave shaped line of perforations (30) extending transversely across the entire width of the flattened tube (12) at a location equidistance between adjacent closely spaced, parallel sets of seals. The flattened tube (12) is separated along each transversely extending line of perforations (24) and along each wave shaped line of perforations (30) after which the leading end of each following trash bag is positioned in an overlapping relationship with the trailing end of the preceding trash bag to facilitate overlapping dispensing.
摘要:
In a process of forming a chain of interconnected bags (25) connected in side by side relation, a tube is formed with a selected one of a fold and a seal delineating bottoms (33) of the bags (25). A pair of elongated lines (27, 28) of weakness are formed spaced from an in parallel with the bag bottoms to delineate tops of bag faces (31) and backs (32) and a top section (23) adapted to be split into a pair of bag supporting lips for transport of the bag through a packaging machine. Spaced bag side delineating seals (34) are formed each transverse to the bag bottoms (33). Side lines of weakness (30) in each of the side seals (34) and generally bisecting the seals are formed to delineate readily disconnectable sides of adjacent bags. Each side seal (34) includes a portion extending to the longitudinal lines of weakness (27, 28) thereby to assure controlled separation of the lines of weakness to provide rectangular bag openings as a chain is transported through the packaging machine.