US3783751A - Methods and apparatus for making sacks or bags - Google Patents

Methods and apparatus for making sacks or bags Download PDF

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Publication number
US3783751A
US3783751A US00230360A US3783751DA US3783751A US 3783751 A US3783751 A US 3783751A US 00230360 A US00230360 A US 00230360A US 3783751D A US3783751D A US 3783751DA US 3783751 A US3783751 A US 3783751A
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Prior art keywords
sack
belt
conveyor
web
insert
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Expired - Lifetime
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US00230360A
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English (en)
Inventor
A Winnemoller
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Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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    • 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
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting 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
    • 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
    • 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
    • B31B2155/00—Flexible containers made from 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
    • 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
    • B31B2170/00—Construction of flexible containers
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
    • B31B2170/204—Construction of flexible containers having multi-layered walls, e.g. laminated or lined involving folding a web about an already tubular web
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1317—Means feeding plural workpieces to be joined
    • Y10T156/1322—Severing before bonding or assembling of parts
    • Y10T156/133—Delivering cut part to indefinite or running length web

Definitions

  • ABSTRACT A method and apparatus for making bags or sacks which comprise an outer sack and an inner sack, part of which projects from the mouth end of the outer sack.
  • Tube portions for the inner sacks are applied to a web of material for the outer sack, and the web is made into a tube around the tube portions and divided into the lengths required for the individual sacks.
  • the sacks pass through the apparatus with their mouth end leading, the mouth end of each inner sack being folded inwardly by the amount corresponding to the intended projecting part of the inner sack.
  • the apparatus has a double-belt conveyor for passing the inner sack tube portions over a displaceable plate which initiates the inward fold and which then pushes the folded edge into a second double-belt conveyor to complete the fold and convey the tube portion on to the outer sack web.
  • SHEU 1 (If 4 METHODS AND APPARATUS FOR MAKING SACKS OR lBAGS
  • This invention relates to methods and apparatus for making sacks or bags, comprising an outer sack, preferably made of one or more plies of paper, and an insert or liner sack fitting therein, preferably comprising plastic films, which projects out of the outer sack for filling and closing.
  • the insert sack which is stuck in the tube formed by the web of outer sack material participates in the movement of the outer sack tube portion as it is torn off, and slips without restriction out of its position of overlap with the following insert sack.
  • the insert sack therefore projects out of the outer sack tubular portion, by the amount of overlap at the trailing end thereof, the trailing end forming the mouth of the bag or sack.
  • Apparatus has also been proposed for carryingout the above method, which comprises-first per se known means for forming single-ply or multi-ply tubes for the outer sacks, and second per se known means for advancing and transversely cutting a simple flat or tubular web of material for the insert sacks, wherein associated with the first means, in front of the associated tubeforming apparatus in the direction of conveyance, are a per se known transverse perforating apparatus and a glueing mechanism for applying dots of glue to the-single-ply or multi-ply web of outer sack material, and after the said tube-forming apparatus, a per se known tearing-off apparatus; arranged downstream of the second means are an apparatus for overlapping the portions which are cut off from the simple flat or tubular web of material for the insert sacks, and a conveyor means which moves at the speed of conveyance of the web of outer sack material and which lays the overlapped portions of insert sack material onto the web of outer sack material, the arrangement of the conveyor means being such that the portions of insert
  • the tubular sack portions should be formed with the filling end leading, and that the insert sack portions should be folded over through at their leading end by the amount of overlap and then secured by means of dots of adhesive at their trailing end to the web of outer sack material so that the fold edge of the inner sack portion, which is formed by folding over the overlap region, is approximately flush with the transverse perforation in the web of outer sack material.
  • a method of making a sack or bag comprising a singleply or multi-ply outer sack, preferably of paper, and an insert sack, preferably of plastics film, which projects out of the outer sack at the filling end for filling, wherein a web of material comprising one or more transversely displaced plies for the outer sack is moved continuously at a given speed, and the insert sack material of a conveyor length corresponding to the insert sack length is advanced more rapidly approximately by the amount intended in the finished sack to project out of the outer sack, and applied to the web of outer sack material, wherein the web of outer sack material is divided by transverse perforations into given outer sack lengths which are still attached to each other, while portions corresponding to the insert sack length are cut off from the web of insert sack material and attached at one end by means of glue to the web of outer sack material in such a way that said cut edges are flush with the transverse perforations or are at a given spacing therefrom,
  • This method produces sacks in which the insert sacks terminate with a fold edge at the filling or mouth end of the outer sack.
  • the inwardly projecting filling end of the inner sack is in that way reliably protected by the outer sack from fouling and damage. It must obviously be pulled out of the outer sack for filling purposes.
  • the invention also provides apparatus for carrying out the method according to the invention, comprising first means for forming single-ply or multi-ply tubes for the outer sacks; second means for advancing and transversely cutting a simple flat or tubular web of material for the insert sacks; a tube-forming apparatus for forming the webs of the outer and insert sacks into a tube; a transverse perforating apparatus arranged upstream of the tube-forrning apparatus, for transversely perforating said outer sack web; a glueing mechanism for applying glue to said outer sack web, arranged upstream of the tube-forming apparatus; a tearing-off apparatus arranged downstream of said tube-forming apparatus; an apparatus arranged downstream of said second means for feeding the portions which are cut off from the simple flat or tubular web of material for the insert sacks; and a conveyor means which in operation moves at the speed of conveyance of said outer sack web and which lays the portions of insert sack material onto the the outer sack web, the arrangement of the conveyor means being such that the portions
  • the folding plate permits the insert sack portion which comes out of the doublebelt conveyor at a higher speed to tip downwardly at the forward end thereof over its folding edge, and, folding the downwardly tipped end over, threads it into the following intermediate conveyor which is preferably in the form of a double-belt conveyor and which grips the insert sack portion at its tilted edge, and completes the fold initiated by the folding plate.
  • the folding plate is arranged on the lower beltof the double-belt conveyor so as to be movable downwardly from its upwardly directed working position into an inoperative position. In this way, in a simple manner, it is possible, with the folding plate lowered, to use the apparatus as required also to manufacture sacks with the insert sack still projecting out of the outer sack.
  • the folding plate is of a comb-like construction and is secured at a position lying in the interior of the surface enclosed by the lower conveyor belt of the reciprocating doublebelt conveyor, and, with its fingers projecting between the individual strands of the conveyor belt which is in the form of a strand belt, engages beyond the front reciprocating belt roller.
  • the comb-like folding plate is advantageously pivotally connected at its rearward edge to an operating linkage by way of which movement in the direction of conveyance is imparted thereto in the rhythm of the reciprocating movement of the reciprocating belt roller.
  • the operating linkage can comprise a double lever which is pivotally connected with its one end to a respective side of the comb-like folding plate and which is moved by spring force into the retracted rest position of the folding plate and which is pivotally mounted with its pivot centre point in a bearing which is moved with the reciprocating belt roller.
  • the other half of the double lever tenninates freely, and in the path of movement of the free half of the lever, in the region of the forward end of the reciprocating movement, is arranged an adjustable stop which, in conjunction with the forward movement of the pivot centre point of the double lever until the one stroke movement of the reciprocating motion is completely terminated, moves the double lever and thus the comb-like folding plate in the direction of movement of the reciprocating belt roller, overtaking the latter, into the forward working position in opposition to the spring force.
  • Reliable gripping of the front end, which is still loosely folded over, of the insert sack tube portion can additionally also be achieved in that the upper belt of the intermediate conveyor which is in the form of a double-belt conveyor is guided in the region of the entry end by means of two guide rollers such that a wedge-shaped entry nip is produced, and that on the inside of the run (nip run) spanning overthe entry nip there is arranged a further roller which is movable transversely to the nip run and which is pressed into and removed again from the nip run in the working rhythm of the machine, whereby the nip is opened and closed in the rhythm of the machine.
  • a similar'effect can also be achieved automatically by the upper belt of the intermediate conveyor, which is in the form of a double-belt conveyor, being passed in the region of the entry end over two guide rollers such as to produce a wedge-shaped intake nip, and by the guide roller which is closest to the conveyor section formed jointly with the lower belt, being resiliently flexibly pressed inwardly into the two upper belt runs which adjoin it.
  • FIG. 1 shows a diagrammatic side view of an embodiment of the apparatus
  • FIG. 2 shows a plan view of the operation of joining a web of outer sack material toinsert sack portions in the apparatus shown in FIG. ll,
  • FIGS. 3 and 4 show two characteristic phases of the apparatus of FIG. 1, during the operation of folding over the leading end of an insert sack portion
  • FIG. 5 shows a side view of another embodiment of the folding mechanism of the apparatus of FIG. 1,
  • FIG. 6 shows a plan view of the apparatus of FIG. 5
  • FIG. 7 shows another embodiment of the pressure roller at the entry end of the intermediate conveyor, for completing the step of folding over the leading end of an insert sack portion, 7
  • FIG. 8 shows a further plan view of the apparatus of FIG. 5.
  • The'apparatus shown in FIG. 1 comprises a tube- I forming apparatus 6 for a web A of outer sack material which is continuously advanced in the direction of conveyance a by the pair of feed rollers 1.
  • a tube- I forming apparatus 6 for a web A of outer sack material which is continuously advanced in the direction of conveyance a by the pair of feed rollers 1.
  • glueing mechanisms (not shown) for applying glue for the adhesive seams of the tube for forming the outer sacks
  • a transverse perforating apparatus 2 for producing transverse perforations 3
  • a glueing mechanism 4 for applying dots of adhesive 5 to the web A of material.
  • a tearing-off apparatus 7 which tears outer sack tube portions AS individually from the web A along the transverse perforations 3'.
  • ll also has a pair of feed rollers 8 associated with a transverse cutting means 9 for feeding a tubular web E of insert sack material and for cutting off insert sack portions ES respectively, an apparatus 10 for mutual overlapping of the insert sack portions ES, and an intermediate conveyor 11, 11' which lays the insert sack portions ES onto the web A, maintaining the overlapping thereof, in synchronism with the web A.
  • ble-belt conveyor 14 and 17 which advances the insert sack portions ES at a higher speed than the speed of conveyance of the intermediate conveyor 11 and 11' and transfers the portions ES to the conveyor 11 and 11' and in this way produces the mutual overlapping of the insert sack portions ES, the magnitude of the overlap being made equal to the amount by which the insert sack is intended to project out of the outer sack for the purpose of filling and closing thereof, by virtue of the selected difference in speed between the double-belt conveyor 14 and Hand the intermediate conveyor 11 and l 1.
  • the intermediate conveyor 11 and 111' is preferably in the form of a double-belt conveyor.
  • Its top belt 11' comprises a plurality of individual parallel bands and at its entry end (towards the left in FIG. 1) it has two guide drums 35 and 36 for the individual bands.
  • the entry end drum 35 is spaced by a distance y from the plane EE of conveyance of the intermediate conveyor 11 and 11', thus producing a wedge-shaped entry or nip 37 to the conveyor.
  • a pressure roller 38 Arranged between the two drums 35 and 36, inthe region of the individual bands which pass over the drum 35, is a pressure roller 38 which is reciprocal relative to the lower belt III in the working rhythm of the apparatus, and which presses the individual bands downwardly towards the lower belt 11 for the purpose of gripping inster sackportions ES inserted into the entry 37.
  • the pressure roller 38 which is reciprocal relative to the lower belt 11 in the working rhythm of the machine, it is also possible, as shown in FIG. 7, to provide a pressure roller 38 which is springloaded by a spring 42 against the lower belt 11.
  • the upper belt 14 of the double-belt conveyor 14 and 17 is stationarily mounted. It also comprises a plurality of parallel individual bands and passes at one end (towards the right in FIG. 1) over the same guide drum 35 as the top belt 11' of the intermediate conveyor Ill and 11'. As the double-belt conveyor 14 and 17 moves at a higher speed than the intermediate conveyor 11 and 111', freely rotatable loose pulleys are provided for the individual bands of the upper belt 14, between the guide pulleys which are secured on the shaft 35' of the drum 35 for the individual bands 11'.
  • the lower individual belt 17 of the double-belt conveyor has its front guide drum 16 reciprocally movable in the working rhythm of the apparatus in the direction indicated by the arrows b-b relative to the wedgeshaped entry 37 into the intermediate conveyor 1 1 and 11', so that each insert sack portion ES is threaded with its leading end into the intermediate conveyor 11 and 11'.
  • a folding plate 39 which projects substantially in the direction of movement of the reciprocatable belt 17 is secured as shown at the discharge end thereof such that towards the end of the forward movement of the drum 16, the front folding edge of the plate 39 extends into the gripping region, that is to say, into the wedgeshaped entry 37 into the intermediate conveyor Ill and 111'.
  • the folding plate 39 is vertically movable and can be fixed in any desired position, by means of a holder 41 which is pivotal about the shaft 40 of the reciprocal guide drum 16 of the conveyor belt 17.
  • the plate 39 can therefore be set either in the working position as described above and as shownin solid lines, or in a downward position as indicated in broken lines in FIG.
  • each insert sack portion ES which is advanced by the double-belt conveyor 14 and 17 passes over the folding plate39 and, as shown in FIG. 1, is tipped downwardly under the force of gravity over the front edge of the plate 39.
  • the portion ES passes into the wedge-shaped entry 37 to the intermediate conveyor l1 and 11 with its downwardly tipped end about the folding plate 39 and, by downward movement of the pressure roller 38 against the fold edge pre-formed by the folding plate 39, is gripped by the intermediate conveyor 11 and 11' which, as shown in FIG. 4, completes the folding operation, pulls the insert sack portion from the folding plate 39 which is again moving back (towards the left of FIGS. 1 and 4), and passes it to the web A.
  • the width x of the folds produced in this way in the sack portions ES can be made equal to the length by which each insert sack is intended to project with its filling end out of the outer sack, for the purposes of filling and closing the sack.
  • the insert sack portion BS is taken from the intermediate conveyor 11 and 11' and laid, with its folded-over edge leading, onto the web A in such a way that the leading edge is flush with the transverse perforations 3 in the web A.
  • the web A has been formed into a tubular shape in the tubeforming apparatus 6, and after the outer sack tube portion AS has been torn off by means of the tearing apparatus 7, there are produced tubular portions AS-ES in which the insert sack portions are completely enclosed at their folded-over filling end x by the outer sack tube portion.
  • the folded-over end x thus closes the insert sack and is protected from dirt and damage in the interior of the outer sack itself.
  • FIGS. 5 and 6 show another embodiment of the folding mechanism.
  • a plurality of folding fingers 43 At the discharge end of the conveyor 17 and between the bands 17 thereof, are provided a plurality of folding fingers 43 so arranged that their forward, folding edges are reciprocatable beyond the front guide rollers 44 of the lower belt 17.
  • the fingers 43 are pivotally mounted with their rearward end on a common cross member 45 and lie on the shaft 46 of the rollers 44.
  • the member 45 is supported by means of lateral, double-armed pivotal levers 47 on the frame of the conveyor belt 17.
  • Springs 48 and stops 49 hold the member 45 in a rest position relative to the rollers 44, such that the folding fingers 43 do not project beyond the periphery thereof.
  • stationary stops 50 against which the lever arms can abut towards the end of the forward movement of the assembly of the rollers 44 of the conveyor belt 17.
  • the stops 50 can be moved as described out of the path of movement of the levers 47, for example by a downward pivotal movement in the direction of the arrow c.
  • the folding fingers 43 can be caused to remain in their rest position under the influence of the springs 48.
  • the apparatus can then operate in the same manner as the apparatus as described above with reference to FIGS. 1 to 4, when the folding plate 39 is moved into its downward inoperative position.
  • FIG. 8 shows a similar view to that of FIG. 6, with the difference that a bar 43" is provided at the forward ends of the fingers 44 to form a folding plate 43 of comb-like or ladder-like configuration.
  • the insert sack portions are engaged by the bar 43" over its entire width, as in the case of a closed folding plate, and inserted into the entry nip 37 of the double-belt conveyor 11 and 11, which then rolls the transverse fold.
  • the bar 43" thus avoids any danger of damage to the insert sack tube portions by the tips of the fingers 43.
  • a method of making a sack or bag comprising a single-ply or multi-ply outer sack, preferably of paper, and an insert sack, preferably of plastics film, which projects out of the outer sack at the filling end for filling, wherein a web of material comprising one or more transversely displaced plies for the outer sack is moved continuously at a given speed, and the insert sack material of a conveyor length corresponding to the insert sack length is advanced more rapidly approximately by the amount intended in the finished sack to project out of the outer sack, and applied to the web of outer sack material, wherein the web of outer sack material is divided by transverse perforations into given outer sack lengths which are still attached to each other, while portions corresponding to the insert sack length are cut off from the web of insert sack material, and attached at one end by means of glue to the web of outer sack material in such a way that said cut edges are flush with the transverse perforations or are at a given spacing therefrom, whereupon the web
  • Apparatus comprising first means for forming single-ply or multi-ply tubes for the outer sacks; second means for advancing and transversely cuttinga simple flat or tubular web of material for the insert sacks; a tube-forming apparatus for forming the webs of the outer and insert sacks into a tube; a transverse perforating apparatus arranged upstream of the tube-forming apparatus, for transversely perforating said outer sack web; a glueing mechanism for applying glue to said outer sack'web, arranged upstream of the tube-forming apparatus; a tearing-off apparatus arranged downstream of said tube-forming apparatus; an apparatus arranged downstream of said second means for feeding the portions which are cut off from the simple flat or tubular web of material for the insert sacks; and a conveyor means which in operation moves at the speed of conveyance of said outer sack web and which lays the portions of insert sack material onto the outer sack web, the arrangement of the conveyor means being such that the portions of insert sack material are laid onto the web of outer sack material
  • Apparatus according to claim 2 wherein the folding plate means comprises a folding plate supported on the lower belt of the double-belt conveyor so as to be movable between an upwardly directed working position and a downward inoperative position.
  • the lower conveyor belt of the double-belt conveyor comprises a plurality of stands and the folding plate means comprises a folding plate of a comb-like construction supported at a position lying in the interior of the space enclosed by the lower conveyor belt of the double-belt conveyor, the comb-like fingers projecting between the individual strands of the conveyor belt and being movable to a position in which they extend beyond the reciprocatable belt roller.
  • Apparatus according to claim 4 wherein the comblike folding plate is pivotally connected at its rearward end to an actuating linkage by way of which-a movement in the direction of conveyance is imparted thereto in the rhythm of the reciprocating movement of said reciprocatable belt roller.
  • said actuating linkage comprises a pivotally mounted double lever which has its first ends pivotally connected to a respective side of the comb-like folding plate, while its second ends are free; spring means for urging the lever towards a position in which the folding plate is in a retracted rest position, the'lever being pivotally mounted at its pivot point in a bearing which is movable with said reciprocatable belt roller; and adjustable stop means arranged in the path of movement of said free ends of the lever, in the region of the forward end of the movement of said reciprocatable belt roller, the stop means co-operating with the lever during the forward movement of the pivot point of the lever until the one stroke movement of the reciprocating motion of said belt roller is completely terminated, whereby the double lever and thus the folding plate are moved in the direction of movement of said reciprocatable belt roller, overtaking the latter, into a forward working position against the force of said spring means.
  • said conveyor means is in the form of a double-belt conveyor having an upper belt guided in the region of its entry end by means of two guide rollers such that a wedgeshaped entry nip is produced, and wherein a further roller is disposed on the inside of the belt run (nip run) spanning across the entry nip, which further roller is movable transversely relative to the nip run and which can be pressed into and removed again from the nip run in the working rhythm of the machine, whereby in operation the nip run is opened and closed in the rhythm of the machine.
  • said conveyor means is in the form of a double-belt conveyor having an upper belt passing in the region of the entry end over two guide rollers such as to form a wedgeshaped entry nip, and wherein a roller is arranged adjacent the conveyor section formed by the upper belt jointly with the lower belt, the roller being so arranged that it can be resiliently flexibly pressed outwardly into the two adjoining runs of said upper belt.
  • the upper belts of the double-belt conveyor and the conveyor means are each in the form of a strand belt, the strands of both upper belts are guided at the adjacent ends of the upper belts by means of band pulleys with acommon centre, and wherein of the double-belt conveyor only the front roller of the lower belt carries out said reciprocating movement.

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  • Making Paper Articles (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
US00230360A 1971-03-06 1972-02-29 Methods and apparatus for making sacks or bags Expired - Lifetime US3783751A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712110815 DE2110815A1 (de) 1971-03-06 1971-03-06 Verfahren und Vorrichtung zum Herstellen von Saecken oder Beuteln mit einem Einstecksack

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US3783751A true US3783751A (en) 1974-01-08

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US (1) US3783751A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5634465B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2110815A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2200779A6 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1376052A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865019A (en) * 1972-07-07 1975-02-11 Union Camp Corp Method of making bags with film liners
US3868892A (en) * 1972-09-12 1975-03-04 Windmoeller & Hoelscher Apparatus for manufacturing bags with an inner bag which has a Z-fold
US3929275A (en) * 1972-07-07 1975-12-30 Union Camp Corp Bags with film liners and method of making
US20040124574A1 (en) * 2002-07-04 2004-07-01 Plockmatic International Ab Roller arrangement for a booklet maker
CN107972319A (zh) * 2017-11-07 2018-05-01 湖南鸿江包装有限公司 一种三层复合袋的半成型品一体生产装置
CN111761878A (zh) * 2020-07-03 2020-10-13 浙江旭东包装有限公司 一种可满足多种封边折痕需求的包装袋制造设备
CN113427833A (zh) * 2021-07-05 2021-09-24 安徽金轩塑业有限公司 一种编织袋内外层套装设备
CN115071211A (zh) * 2022-07-01 2022-09-20 平阳县润兴塑料机械有限公司 一种双层袋粘合加工机构及其切缝粘一体机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220892A1 (de) * 1982-06-03 1983-12-08 Icoma Packtechnik GmbH, 7590 Achern Trenneinrichtung zum abtrennen perforierter papierschlauchabschnitte
JPS606448U (ja) * 1983-06-25 1985-01-17 池田物産株式会社 ランバ−サポ−ト
CN112339348A (zh) * 2020-11-06 2021-02-09 烟台职业学院 一种内外袋自动热粘合装置

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US3254574A (en) * 1963-01-24 1966-06-07 Bemis Co Inc Method of manufacturing bags
US3391615A (en) * 1965-05-11 1968-07-09 Albemarle Paper Co Process and apparatus for the manufacture of a multi-ply bag
US3664238A (en) * 1969-04-24 1972-05-23 Int Paper Co Apparatus for making multi-ply paper bags

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US2054298A (en) * 1934-06-26 1936-09-15 Equitable Paper Bag Co Process of making paper receptacles
US2135132A (en) * 1937-06-30 1938-11-01 Spencer U Boehmer Bag forming process
US2259752A (en) * 1939-05-05 1941-10-21 Dixie Wax Paper Company Method of manufacturing duplex bags
US2803173A (en) * 1955-08-18 1957-08-20 Arkell Safety Bag Co Machines for and method of making multi-ply bags
US3254574A (en) * 1963-01-24 1966-06-07 Bemis Co Inc Method of manufacturing bags
US3391615A (en) * 1965-05-11 1968-07-09 Albemarle Paper Co Process and apparatus for the manufacture of a multi-ply bag
US3664238A (en) * 1969-04-24 1972-05-23 Int Paper Co Apparatus for making multi-ply paper bags

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3865019A (en) * 1972-07-07 1975-02-11 Union Camp Corp Method of making bags with film liners
US3929275A (en) * 1972-07-07 1975-12-30 Union Camp Corp Bags with film liners and method of making
US3868892A (en) * 1972-09-12 1975-03-04 Windmoeller & Hoelscher Apparatus for manufacturing bags with an inner bag which has a Z-fold
US20040124574A1 (en) * 2002-07-04 2004-07-01 Plockmatic International Ab Roller arrangement for a booklet maker
US6962559B2 (en) * 2002-07-04 2005-11-08 Plockmatic International Ab Roller arrangement for a booklet maker
CN107972319A (zh) * 2017-11-07 2018-05-01 湖南鸿江包装有限公司 一种三层复合袋的半成型品一体生产装置
CN107972319B (zh) * 2017-11-07 2024-04-30 温州阳挺包装有限公司 一种三层复合袋的半成型品一体生产装置
CN111761878A (zh) * 2020-07-03 2020-10-13 浙江旭东包装有限公司 一种可满足多种封边折痕需求的包装袋制造设备
CN113427833A (zh) * 2021-07-05 2021-09-24 安徽金轩塑业有限公司 一种编织袋内外层套装设备
CN115071211A (zh) * 2022-07-01 2022-09-20 平阳县润兴塑料机械有限公司 一种双层袋粘合加工机构及其切缝粘一体机

Also Published As

Publication number Publication date
FR2200779A6 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-04-19
JPS5634465B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1981-08-11
GB1376052A (en) 1974-12-04
DE2110815A1 (de) 1972-09-14

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