EP0375479A1 - Verfahren zum Herstellen von Beuteln aus geschmeidigem Material, insbesondere aus Kunststoff, und Vorrichtung zum Ausführen dieses Verfahren - Google Patents

Verfahren zum Herstellen von Beuteln aus geschmeidigem Material, insbesondere aus Kunststoff, und Vorrichtung zum Ausführen dieses Verfahren Download PDF

Info

Publication number: EP0375479A1
Authority: EP; European Patent Office
Prior art keywords: bag; opening; bars; sheath; welding
Prior art date: 1988-12-14
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Granted

Application number

EP89403216A

Other languages

English (en)

French (fr)

Other versions

EP0375479B1 (de

Inventor

André Jean Paul Allegre

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Decomatic SA

Original Assignee

Decomatic SA

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1988-12-14

Filing date

1989-11-22

Publication date

1990-06-27

1989-11-22 Application filed by Decomatic SA filed Critical Decomatic SA

1989-11-22 Priority to EP91100220A priority Critical patent/EP0424361B1/de

1990-06-27 Publication of EP0375479A1 publication Critical patent/EP0375479A1/de

1994-02-09 Application granted granted Critical

1994-02-09 Publication of EP0375479B1 publication Critical patent/EP0375479B1/de

2009-11-22 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2160/00—Shape of flexible containers
- B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2160/00—Shape of flexible containers
- B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
- B31B2160/106—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from sheets cut from larger sheets or webs before finishing the bag forming operations
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/02—Feeding or positioning sheets, blanks or webs
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/74—Auxiliary operations
- B31B70/86—Forming integral handles or mounting separate handles
- B31B70/864—Mounting separate handles on bags, sheets or webs

Definitions

the present invention relates to a method for manufacturing bags made of flexible material, in particular plastic, and more specifically of side bellows bags, in particular made of plastic.
the device used comprises means making it possible to present a sheath or a bag already cut from the sheath in a flattened position, means making it possible to separate, by a certain distance, the two edges of the opening of the bag and unfold, at least partially, the bellows, means for presenting on either side of the plane of symmetry of the bag, two bars arranged in parallel and spaced from each other by a sufficient distance so as no longer to be hampered by the presence of the bellows, and to introduce said bars into the opening thus formed in the vicinity of the internal faces of the corresponding edges of the bag, and means for welding said edges against the bars.
the present invention proposes to improve this method and this device so as to obtain high rates of automatic bag manufacturing, especially of plastic, and this with a very high degree of reliability.
the invention relates to a method, of the aforementioned type, for making bags of flexible material, in particular of plastic or complex material, characterized in that, to separate the two edges of the opening from one another of the bag, so as to open the bellows, a vacuum is established on the two outer faces of each edge of the opening of the bag using two pressure-reducing members extending parallel to said edges on either side of the bag, said two pressure-reducing members being initially spaced from each other by a distance slightly greater than the thickness of the bag so as to move said edges until they are '' apply against the depression-causing organs.
the two pressure-reducing members for the two edges are, in the initial state, that is to say at the time of the depression, separated from one another by a distance of the order from 0.5 to 1 mm, the bag in the flattened state being placed in between.
the difference between the distance separating the two pressure-reducing members and the thickness of the bag is between 0.2 and 0.4 mm.
the flattened sheath is cut into individual bags, the bottom of which is welded, then the underside of the bag which has just been cut is applied by vacuum against part of a horizontal transfer table moving transversely relative to the direction of travel of the sheath to present the bag to a bag opening station and introduction and fixing or welding of the bars, an adequate part of said table having a pressure-reducing member maintaining said lower face applied against the table at a certain distance from the very edge of the opening of the bag.
this cut is made downstream of the weld line so that the opening of the bag opening in the process of scroll in the direction of the sheath looks in the upstream direction of scrolling. Thanks to this characteristic, it is possible to immediately fix the lower face near the lower edge of the opening of the bag against the depression element of the table, and this in a fixed and precise position resulting from the cutting and welding of the bottom of the next bag, the table, in its translation, also passing under a guide ensuring good maintenance of the rest of the bag on the table.
the sheath when the bag has just been cut, can be given a short backward movement away from the opening of the bag which has just been cut, so as to avoid any interference between the sheath and the bag when translating the bag.
the bars, with or without handles are brought separately from above and from below, in the form of piles so as to be taken in loading by distribution means such as very flat clamps.
distribution means can advantageously be associated with means such as, for example, cams ensuring, at the time of gripping, a relative movement, in the direction of stacking, ensuring a separation between the bar which will be taken in load and the rest of the overhead or underlying bars.
the invention also relates to a device for implementing this method, said device being characterized in that the means making it possible to separate, by a certain distance, the two edges of the opening of the bag and unfold, at least partially, the bellows, comprise two pressure-reducing members arranged one opposite the other and initially spaced from each other by a distance making it possible to cause, at the start of the aspiration, a displacement from the edges of the bag until it comes to apply against the respective pressure-reducing organs.
This distance can advantageously be of the order of 0.7 mm for conventional plastic bags.
the device may advantageously include two welding stations or fixing bars, supplied alternately by a table or other means of translation taking charge of the bag cut from the sheath. If the bag is transferred in a horizontal state, on a table, it can be maintained and positioned on this table by another pressure-reducing member carried by the table in a location which does not interfere with that of the two pressure-reducing bodies intended for the opening of the bag, which is applied against the underside of the edge of the bag.
these pressure-reducing members have a rectangular geometric surface provided with a plurality of suction orifices, at least some of the suction orifices being advantageously disposed at the bottom of shallow bowls, for example of circular shape, practiced in the surface of the depression-causing organ.
the suction orifices are eccentric in the bottom of the bowls and situated, for example, towards an edge of the bowl.
the diameter of these bowls can advantageously be of the order of 8 mm.
the device according to the invention preferably has, at a location where the sheath runs, a welding station ensuring transverse welding forming a bottom of the bag and a cutting station ensuring the separation of the bag formed from the sheath, the cutting station being located downstream of the welding station relative to the direction of travel of the sheath, so that the opening of the bag formed by cutting looks upstream.
the device can have means ensuring the formation of free bending zones at the bellows, these means being able to comprise heating means, for example by hot pulsed air, of the edges of the sheath folded at the bellows, and pressing rollers for the edges thus heated.
the device can include two magazines for distributing bars, making it possible to bring the bars on either side of the plane of the bag to the level of the opening of the bag, these distributors being supplied by stacked bars.
the distributors can advantageously cooperate with gripper means capable of simultaneously gripping two bars, one from one of the distributors, for example an upper distributor, and the other by from the other distributor, for example a lower distributor, to bring them simultaneously, in a position separated from one another, in the opening of the bag, on either side of the bellows, said clamps being arranged so as to be able to withdraw when the welding jaws bring the bars, applied against the edges of the bag, towards each other, for welding.
the welding jaws are respectively mounted on mobile equipment, for example sliding, which also carry the pressure-reducing members ensuring the opening of the bag.
the device comprises, for feeding it, a reel receiving a roll 1 of flattened plastic sheath from which the sheath 2 can pass through the device by means of usual drive means by rollers 3.
the sheath 2 arrives from there usual accumulation zone 4 from which it is brought, by references 5, to a shaping station 6 comprising, in the usual way, a free inner core supported by rollers and intended to give the sheath a rectangular section, this station also comprising means for practicing, in this rectangular section, below the core, internal folds intended to form the bellows of the sheath. Leaving the extraction rollers 7 of station 6, the sheath then has a flattened shape with, at each of its two edges, an internal bellows.
the sheath is then led to hot air heating means 8 of the sheath edges which provide a certain heating of the folds of the edges at the bellows.
a pair of pressing rollers 9 ensures an "ironing" of the sheath whose folds of bellows are thus clearly formed.
the sheath 2 then passes through a new accumulation station 10 to be brought to verification, lateral guide 11 and printing location 12 stations, then arrives at a welding and cutting station 13.
the cut sheath is supported by a horizontal table 14 capable of sliding transversely and alternately left and right and presenting the sheaths alternately at two stations (only one of which is shown in Figure 2) generally designated by 15
a horizontal table 14 capable of sliding transversely and alternately left and right and presenting the sheaths alternately at two stations (only one of which is shown in Figure 2) generally designated by 15
the bag will undergo the following operations: - opening and separation of the two edges of the opening of the bag, - introduction of the bars in the opening orifice, - fixing of the bars by thermal welding.
control means such as for example optical sensors, can advantageously be arranged, in order to ensure regulation, known per se, of the advancement of the sheath and of the sequence operations of the various stations.
a set of conductors 16 connected to electronic control and command means 17 allows the control of operations.
the station 13 has two plates, namely an upstream plate 18 and a downstream plate 19 leaving between them a certain gap.
a resistance support 20 mounted fixed and receiving inside it an armored electrical resistance 21, the upper edge of the support 20, which extends transversely over the width of the sheath and beyond, seeing a thin strip of polytetrafluoroethylene 22 pass over him flowing between two rollers 23, 24.
the role of this strip 22 is to prevent the film of thermoplastic material from sticking against the upper part of the sealing bar or support 20.
a similar support 25 also beveled and receiving inside it an electric armored resistance 26.
the lower edge of the support 25 also sees a strip of polytetrafluoroethylene 27 running between rollers 28, 29 and having the same function as the strip 22.
the assembly is mounted on a vertically movable assembly making it possible to move apart and bring the support 25 alternately to the support 20, the bringing together of these supports causing the welding of a line transverse to the sheath, and intended to form the bottom of the bag.
a piece that is also mobile Downstream of the welding supports 20, 25, there is located a piece that is also mobile, preferably carried by the same crew, and having, on a suitable structure 30, a knife holder 31 driven in an alternating movement horizontally and transversely by relative to the direction of travel of the sheath and supporting a knife 32 which cuts the sheath slightly downstream of the weld line, the operation of the knife 32 therefore separating from the sheath a complete bag whose welded bottom is already located far away downstream on the table 14 and whose opening looks at the welded bottom of the sheath upstream.
the bag which has just been cut therefore rests, at this moment, flat on the short fixed plate 19 and on the table 14 which follows it, its opening being arranged at the level of the knife 32 in the immediate vicinity of the sheath 2 upstream. . Then, for a short time, the direction of travel of the sheath which reverses back over a distance of the order of 25 mm, deviating from the opening of the bag placed on the tray 19, is reversed. pressure-relief member 40 located in the table 14 has been actuated and maintains by suction, the bag on the table 14.
This pressure-relief member 40 extends over the transverse width of the table, that is to say perpendicular to the direction of travel of the sheath, under the entire width of the bag, and this all along the rear edge, that is to say facing downstream, of the table 14.
the rear or downstream edge 41 table 14, that is to say the edge of the pressure-reducing member 40, is located at a distance of the order of 100 mm from the knife 32, that is to say from the location where finds the opening of the bag placed on the table, so that the bag protrudes from the table 14 over this distance, the protruding part sliding on the plate 19 which extends, tr inversely, up to the two stations 15 for inserting and welding strips arranged on either side of the device, and where the fixed table 14 is extended, in a way, by the lower mobile lower pressure member of the station 15.
the station 15 comprises, on two mobile assemblies 35, 36, said two lower 50 and upper 51 pressure reducing members so that they can be moved, by the movement of the crews 35, 36, on either side of the horizontal plane in which find the table 14 and the bag, between a close position in which they are separated by a distance of 0.7 mm, and a separated position such that the side bellows of the bag are completely unfolded.
the pressure-reducing elements are produced in the form of rectangular flat tanks, the internal volume of which communicates with a suction orifice connected to a vacuum pump, said tank being surmounted by a rectangular cover 52 in the thickness of which a number of circular recesses 53 of shallow depth (approximately 0.5 mm) into which opens, eccentrically, for example at the periphery, a through hole 54 through which the vacuum prevailing inside the pressure-reducing member is transmitted to the recess 53.
the diameter of a hollow 53 is for example of the order of 8 mm.
the two members 50, 51 are spaced a distance of 15 mm, so that the part of the bag which protrudes behind the end 41 of the table 14 is arranged between the two pressure-reducing members 50, 51 whose width is 50 mm, that is to say less than 50 mm than the length of the part of the bag which protrudes from the end 41, Ci then being placed at a short distance from the corresponding edge of the lower pressure-reducing member 50.
the two pressure-reducing members 50, 51 are brought closer to each other until they are separated by a distance of 0 , 7 mm.
the two pressure-reducing members are then placed under vacuum so that the corresponding walls of the bag are applied against the two respective pressure-reducing members, the spacing of which will then cause the opening of the bag orifice to open completely, causing the bellows to unfold completely. side of the bag.
the station 15 also has two welding jaws 55, 56 each comprising a resistor (not shown) embedded in the jaw made of steel, these jaws being capable of deviating or approaching symmetrically on either side of the horizontal plane from table 14.
the welding jaws 55.56 are respectively integral with the pressure-reducing members 50.51.
FIG. 9 represents a schematic sectional view of the horizontal sliding table 14, the pressure-reducing members 50 and 51, the integral welding jaws 55 and 56, the bag and the handle bars 63, 64.
the station 15 also comprises two distributors 57, 58 receiving stacks of bars, 59, 60, these distributors comprising guides inclined downward and upstream with corresponding belts to cause the displacement of the stacked bars.
These guides 61, 62 are bent so that a upper stack of bars goes down from the top and a lower stack of bars goes up from the bottom, until the lower bars 64 and upper 63 are presented almost symmetrically on both sides of the plane in which the table 14 is arranged.
FIG. 6 the outlet of the lower bars 64 (the handles of the bars not being shown), these bars being stacked in the guide 62 which each time has a bar at its end superior.
the upper and lower bars, 63, 64 are gripped simultaneously by sets or assemblies of clamps 65, 66, each set comprising, as can be seen in FIG. 7, on a crew, a plurality of clamps 67, 68, each forceps having two fine jaws which are likely to be disposed on either side of the extreme bar such as 63, 64 presented respectively by the lower and upper distributors of bars.
the respective assemblies of grippers 65, 66 are movable, on the one hand in rotation about an axis 69, on the other hand in translation by displacement of the axis 69 towards and away from the welding jaws 55, 56 , the movement of the crews 65, 66 being guided by means of paths or ramps and switching which will only be described schematically and which give them, under the simple effect of translation, the paths which will be defined below.
the station 15 also includes a support device 70 having two or more substantially vertical stops or fingers 72 pushed upward relative to the assembly of the device 70 by a suitable spring. Two movable retaining stops 71 are also movable at this level. Finally, a plate 73 inclined upwards and upstream can be moved, in this direction, so as to form a means of detaching the finished bag to facilitate its evacuation, by the downstream direction, far from the station 15.
the axis 69 is then brought back, the pliers this time driving the two bars as seen in diagram c.
the axis 69 is again moved forward, the crews 65 and 66 being held in the open position by the positioning of their rollers 75 which, the switches 74 having tilted horizontally, are forced to enter their guide paths 76 ( Figure d).
the pressure-reducing members 50, 51 which have been placed under vacuum, move away from one another and cause the opening of the walls forming the edge of the bag and the complete deployment of the side bellows of the bag. It is the same for the jaws 55, 56 which are integral therewith.
the axis 69 is then moved downstream over a long distance and, the switch 74 and its symmetrical being controlled to engage the rollers 75 integral with the grippers in their guide paths, the gripper crews 65 and 66 are therefore moved in the same direction, keeping their angular position open, until the bars 63, 64 carried by the grippers approach the opening of the bag (figure e).
the guide tracks 76 cause a rapid tilting of the crews 65, 66 around the axis 69 so that the bars penetrate into the opening of the bag, one on the lower jaw 56 and the other under the upper jaw 55.
the jaws of the clamps 67, 68 open and the clamps are withdrawn in the upstream direction, initially in the closed position, by the guide action of the guide tracks 76, then in the open position, as soon as they have reached the position they occupied just before their closing in the introduction phase, releasing the bars as seen in diagram g.
the jaws 55, 56 finish tightening and the welding current is then sent into the heating jaws 55, 56, causing the welding of the bars against the internal faces of the lips of the opening of the bag.
the jaws open partially as seen in diagram g and the ejection means, such as the plate 73 and its upper symmetrical (not shown) with respect to in the presentation plane of the bag, are implemented, peeling off the edges of the bag from the jaws, after which the finished bag can be evacuated in the plane of the table 14, which, at this time, has already left to take care of a new bag and bring it to the other station 15 for positioning and welding of bars arranged on the other side of the machine.
the ejection means such as the plate 73 and its upper symmetrical (not shown) with respect to in the presentation plane of the bag
the two lower stops 71 integral with the frame of the machine and two upper fixed stops (not shown), which are symmetrical with respect to the presentation plane of the bag, are intended to oppose a risk of withdrawal bars during the movement of release of the clamps out of the bars 63, 64.
FIG. 10 shows the different phases of the movements of the table 14 relative to the station 13 and to the two stations 15 arranged on either side.
the diagram a shows that the transverse dimension of the table 14 corresponds to four bag widths. Consequently, the table has four pressure-reducing members 40 arranged frontally.
the table offset laterally to the right, receives a bag 34A from station 13.
the corresponding member 40 is placed under vacuum.
the table 14 is then shifted to the left and (diagram c ) the bag 34A is presented to the station 15 on the left.
the bag 34 A is taken care of and maintained by the pressure-depressing members 50, 51 of the station 15 on the left and the member 40 is no longer under vacuum.
a bag 34B is brought to the table 14 from this station 13 and held by suction by the pressure-reducing member 40 aligned with the sheath 2.
the table 14 is then moved to the right (diagram e ) by sliding under the bag 34A into which the bars 63, 64 penetrate, then the extreme member 40 brought under the bag 34A is put under vacuum; the bag 34B is thus presented to the other station 15.
the table 14 is moved to the left (diagram g) and the member 40 located under the bag 34A is removed from the vacuum.
the bag 34A can therefore be removed; in this movement, the table 14 brought the bag 34C to the position 15 on the left and slipped under the bag 34B.
a new bag 34D is presented at table 14 by station 13.

Landscapes

Making Paper Articles (AREA)
Lining Or Joining Of Plastics Or The Like (AREA)

EP89403216A 1988-12-14 1989-11-22 Verfahren zum Herstellen von Beuteln aus geschmeidigem Material, insbesondere aus Kunststoff, und Vorrichtung zum Ausführen dieses Verfahren Expired - Lifetime EP0375479B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP91100220A EP0424361B1 (de)	1988-12-14	1989-11-22	Einrichtungen zum Begrenzen des Flüssigkeitsstromes, insbesondere für die Beutelherstellung aus weichem Material, insbesondere aus Kunststoff

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8816441A FR2640193B1 (fr)	1988-12-14	1988-12-14	Procede de fabrication de sacs en matiere souple, notamment plastique, dispositif pour la mise en oeuvre de ce procede et sacs obtenus
FR8816441		1988-12-14

Related Child Applications (2)

Application Number	Title	Priority Date	Filing Date
EP91100220A Division EP0424361B1 (de)	1988-12-14	1989-11-22	Einrichtungen zum Begrenzen des Flüssigkeitsstromes, insbesondere für die Beutelherstellung aus weichem Material, insbesondere aus Kunststoff
EP91100220.2 Division-Into		1991-01-09

Publications (2)

Publication Number	Publication Date
EP0375479A1 true EP0375479A1 (de)	1990-06-27
EP0375479B1 EP0375479B1 (de)	1994-02-09

Family

ID=9372922

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
EP89403216A Expired - Lifetime EP0375479B1 (de)	1988-12-14	1989-11-22	Verfahren zum Herstellen von Beuteln aus geschmeidigem Material, insbesondere aus Kunststoff, und Vorrichtung zum Ausführen dieses Verfahren
EP91100220A Expired - Lifetime EP0424361B1 (de)	1988-12-14	1989-11-22	Einrichtungen zum Begrenzen des Flüssigkeitsstromes, insbesondere für die Beutelherstellung aus weichem Material, insbesondere aus Kunststoff

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
EP91100220A Expired - Lifetime EP0424361B1 (de)	1988-12-14	1989-11-22	Einrichtungen zum Begrenzen des Flüssigkeitsstromes, insbesondere für die Beutelherstellung aus weichem Material, insbesondere aus Kunststoff

Country Status (3)

Country	Link
EP (2)	EP0375479B1 (de)
DE (2)	DE68913023T2 (de)
FR (1)	FR2640193B1 (de)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1436854A1 (de) *	1964-09-15	1969-02-06	Windmoeller & Hoelscher	Maschinenanordnung zum Herstellen von Traggriffbeuteln aus Papier od.dgl.
FR2103714A5 (de) *	1971-07-19	1972-04-14	Simon Roger
US3827928A (en) *	1970-10-20	1974-08-06	Printex	Method for manufacturing shopping bags and device for the working thereof
US3857329A (en) *	1970-01-05	1974-12-31	M Lehmacher	Fabrication of a carrying bag from thermoplastic synthetic film
GB1398248A (en) *	1973-05-11	1975-06-18	Reed International Ltd	Cutting and welding devices for plastics sheet material
DE2527693A1 (de) *	1975-06-21	1977-01-13	Behn Verpackung Erwin	Verfahren und vorrichtung zum oeffnen gestapelter saecke, insbesondere von papier- oder kunststoffsaecken
GB2001037A (en) *	1977-07-15	1979-01-24	Cotterell J	Sheet feeding apparatus
WO1986005442A1 (fr) *	1985-03-20	1986-09-25	Decomatic	Procede de fabrication de sacs en matiere souple notamment plastique, dispositif pour la mise en oeuvre de ce procede et sacs obtenus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2859036A (en) *	1955-03-10	1958-11-04	Sperry Rand Corp	Bag applying and filling machine
CH390134A (de) *	1962-02-02	1965-03-31	Konrad Alfred	Verfahren zum automatischen Beschicken insbesondere von hermetisch schliessenden Säcken, z. B. von Plastikbeuteln, sowie Vorrichtung zur Ausübung des Verfahrens
DE1256577B (de) *	1963-09-21	1967-12-14	Ewald Schoeller & Co	Vorrichtung zum OEffnen, Fuellen und Verschliessen von Kunststoffsaecken
FR1577927A (de) *	1967-09-08	1969-08-08
EP0009521A1 (de) *	1978-09-29	1980-04-16	Peter John Niccolls	Verbesserungen an Maschinen für das Anbringen von Säcken auf Füllmundstücke von Sackfüllmaschinen
JPS55154202A (en) *	1979-05-22	1980-12-01	Kawatetsu Keiryoki Kk	Method and device for packing merchandise in bag

1988
- 1988-12-14 FR FR8816441A patent/FR2640193B1/fr not_active Expired - Fee Related
1989
- 1989-11-22 DE DE68913023T patent/DE68913023T2/de not_active Expired - Fee Related
- 1989-11-22 DE DE68919222T patent/DE68919222T2/de not_active Expired - Fee Related
- 1989-11-22 EP EP89403216A patent/EP0375479B1/de not_active Expired - Lifetime
- 1989-11-22 EP EP91100220A patent/EP0424361B1/de not_active Expired - Lifetime

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1436854A1 (de) *	1964-09-15	1969-02-06	Windmoeller & Hoelscher	Maschinenanordnung zum Herstellen von Traggriffbeuteln aus Papier od.dgl.
US3857329A (en) *	1970-01-05	1974-12-31	M Lehmacher	Fabrication of a carrying bag from thermoplastic synthetic film
US3827928A (en) *	1970-10-20	1974-08-06	Printex	Method for manufacturing shopping bags and device for the working thereof
FR2103714A5 (de) *	1971-07-19	1972-04-14	Simon Roger
GB1398248A (en) *	1973-05-11	1975-06-18	Reed International Ltd	Cutting and welding devices for plastics sheet material
DE2527693A1 (de) *	1975-06-21	1977-01-13	Behn Verpackung Erwin	Verfahren und vorrichtung zum oeffnen gestapelter saecke, insbesondere von papier- oder kunststoffsaecken
GB2001037A (en) *	1977-07-15	1979-01-24	Cotterell J	Sheet feeding apparatus
WO1986005442A1 (fr) *	1985-03-20	1986-09-25	Decomatic	Procede de fabrication de sacs en matiere souple notamment plastique, dispositif pour la mise en oeuvre de ce procede et sacs obtenus

Also Published As

Publication number	Publication date
FR2640193B1 (fr)	1994-06-03
DE68913023D1 (de)	1994-03-24
DE68919222D1 (de)	1994-12-08
EP0424361A2 (de)	1991-04-24
EP0424361A3 (en)	1991-09-18
DE68913023T2 (de)	1994-05-19
FR2640193A1 (fr)	1990-06-15
DE68919222T2 (de)	1995-03-23
EP0375479B1 (de)	1994-02-09
EP0424361B1 (de)	1994-11-02

Publication	Publication Date	Title
FR2766123A1 (fr)	1999-01-22	Installation et procede de fabrication de recipients par thermoformage
EP0000851B1 (de)	1980-10-01	Automatische Vorrichtung zum Zerteilen eines thermoplastischen Schlauches und zum Überziehen von Behältern mittels dieser Schlauchteilen
EP0619259B1 (de)	1997-06-04	Vorrichtung zum Zusammentragen von Bögen mit übereinander angeordneten Fächern.
CH373688A (fr)	1963-11-30	Procédé pour insérer une ébauche de séparation pliable entre des rangées de récipients à emballer et machine pour la mise en oeuvre de ce procédé
FR2467144A1 (fr)	1981-04-17	Procede et dispositif pour emballer des piles de papier dans des cartons prealablement formes
CH362644A (fr)	1962-06-15	Machine à voies multiples pour empaqueter des articles par enveloppement
CH547731A (fr)	1974-04-11	Machine d'emballage.
EP0375479B1 (de)	1994-02-09	Verfahren zum Herstellen von Beuteln aus geschmeidigem Material, insbesondere aus Kunststoff, und Vorrichtung zum Ausführen dieses Verfahren
EP0252792A1 (de)	1988-01-13	Maschine zum Verschliessen einer Schale oder sonstigen Verpackungsbehälters durch Schweissen einer thermoplastischen Folie auf die Ränder eines solchen Behälters
EP3871987B1 (de)	2023-07-05	Brotschneidemaschine mit einem verpackungssystem
FR2627128A1 (fr)	1989-08-18	Procede et machine pour la fabrication en continu de recipients en matiere plastique souple thermosoudable
FR2544248A1 (fr)	1984-10-19	Dispositif pour l'extraction d'articles glaces dans des moules dans une machine de congelation
EP0004631B1 (de)	1981-11-25	Verpackungsvorrichtung und -verfahren
FR2489797A1 (fr)	1982-03-12	Assembleuse pour la confection d'ouvrages tels que liasses, formulaires ou analogues
FR2623438A1 (fr)	1989-05-26	Installation permettant la decoupe de flans elementaires, en carton notamment, destines a la realisation d'emballages
FR2490590A1 (fr)	1982-03-26	Dispositif pour machine d'ouverture, transfert de decoupe de gaine thermoplastique en manchons pour pose autour de recipients
EP1297945B1 (de)	2004-04-14	Maschine zum Zusammensetzen grossformatiger Kunststofffolien
FR2464190A1 (fr)	1981-03-06	Dispositif d'obturation de recipients au moyen d'un couvercle en un materiau en feuille plastiquement deformable
FR2704178A1 (fr)	1994-10-28	Procédé de fabrication d'étuis à soufflets latéraux, et installation pour sa mise en Óoeuvre.
EP0048656A1 (de)	1982-03-31	Vorrichtung für eine Maschine zum Öffnen, Überführen und Abschneiden thermoplastischer Schläuche in Hülsen zum Anbringen an Behältern
EP0601931A1 (de)	1994-06-15	Verfahren und Vorrichtung zur Verpackung mit einem leicht zu öffnende thermoplastischen Film
FR2687612A1 (fr)	1993-08-27	Dispositif pour inserer un produit dans une enveloppe, en particulier une enveloppe de lettre.
FR2503803A1 (fr)	1982-10-15	Procede et machine de fixation d'au moins une zone d'extremite d'un lien elastique souple en tension sur un support en feuille ou en plaque
FR2580544A1 (fr)	1986-10-24	Procede pour la realisation de sachets a partir de feuilles et dispositif pour sa mise en oeuvre
FR3151576A1 (fr)	2025-01-31	Machine d’ensachage de produits et procédé d’ensachage de produits à ensacher avec une telle machine

Legal Events

Date	Code	Title	Description
1990-05-12	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1990-06-27	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): BE CH DE GB IT LI NL
1991-02-27	17P	Request for examination filed	Effective date: 19901211
1992-08-26	17Q	First examination report despatched	Effective date: 19920710
1993-12-23	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1994-02-09	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): BE CH DE GB IT LI NL
1994-02-09	XX	Miscellaneous (additional remarks)	Free format text: TEILANMELDUNG 91100220.2 EINGEREICHT AM 22/11/89.
1994-03-09	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19940208
1994-03-16	ITF	It: translation for a ep patent filed
1994-03-24	REF	Corresponds to:	Ref document number: 68913023 Country of ref document: DE Date of ref document: 19940324
1994-12-10	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1994-12-10	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1995-02-01	26N	No opposition filed
1996-09-23	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19960923 Year of fee payment: 8
1996-10-01	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 19961001 Year of fee payment: 8
1996-10-24	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19961024 Year of fee payment: 8
1996-11-15	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19961115 Year of fee payment: 8
1996-12-12	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19961212 Year of fee payment: 8
1997-11-22	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971122
1997-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971130 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971130 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19971130
1998-05-31	BERE	Be: lapsed	Owner name: S.A. DECOMATIC Effective date: 19971130
1998-06-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980601
1998-07-15	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19971122
1998-07-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1998-08-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980801
1998-08-03	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee	Effective date: 19980601
2005-11-22	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20051122