EP0630743A1 - Appareil pour la fabrication continue d'enveloppes, de bourses, de sachets d'envoi etc. - Google Patents

Appareil pour la fabrication continue d'enveloppes, de bourses, de sachets d'envoi etc. Download PDF

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Publication number
EP0630743A1
EP0630743A1 EP94107410A EP94107410A EP0630743A1 EP 0630743 A1 EP0630743 A1 EP 0630743A1 EP 94107410 A EP94107410 A EP 94107410A EP 94107410 A EP94107410 A EP 94107410A EP 0630743 A1 EP0630743 A1 EP 0630743A1
Authority
EP
European Patent Office
Prior art keywords
folding
bottom flap
fold
suction
suction elements
Prior art date
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
EP94107410A
Other languages
German (de)
English (en)
Other versions
EP0630743B1 (fr
Inventor
Martin Blümle
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.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0630743A1 publication Critical patent/EP0630743A1/fr
Application granted granted Critical
Publication of EP0630743B1 publication Critical patent/EP0630743B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/262—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement
    • B31B70/266—Folding sheets, blanks or webs involving longitudinally folding, i.e. along a line parallel to the direction of movement involving gusset-forming
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/001—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom
    • B31B2150/0016—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom made from already formed 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
    • B31B2160/20—Shape of flexible containers with structural provision for thickness of contents

Definitions

  • the invention relates to a device for the continuous production of envelopes, bags, mailing bags and the like, in particular made of paper. Like. With the features of the preamble of claim 1.
  • the envelopes, bags or mailing bags can be made with or without side gussets as well as with side gluing or with central gluing, and they each have a folded and glued, square stand base, which can also be used as a block - or Kreuzêt is called.
  • the blank or the sheet-like material is first pre-broken and cut to the required extent, glued, folded, separated, prefabricated into a tubular blank and finally closed on the bottom side.
  • the device consists of several stations which are coordinated and work together in terms of their mode of operation and function. Above all, the station used to produce the block or stand base and its device parts are complex and complicated and it is difficult to achieve the same high number of pieces per minute as in the other stations of the device.
  • the invention has for its object to design a device of the type mentioned so that a continuous production of envelopes, bags, mailers and. Like. Is possible with block or cross bottoms, wherein the bottom formation steps take place during a continuous longitudinal conveyance and the previously known, complicated block bottom formation is avoided.
  • the part device used to form the block bottom should therefore be as simple and uncomplicated as possible and allow a high working speed.
  • the invention provides that a zigzag fold-back device is provided for zigzag-shaped, backward movement of a bottom flap.
  • the zigzag fold-back device is additionally arranged as a special station in the device used to manufacture the envelopes, pouches, mailing bags or the like and is effective without causing an interruption in production.
  • the parts also maintain their position when they pass through the zigzag folding device and do not have to be rotated or turned for this purpose.
  • the Refolding process takes place continuously and automatically at the same speed as the production in the other stations of the device.
  • the zigzag folding back takes place after the web serving as the starting material or the blank serving as the starting material has received a tubular shape.
  • At least one suction element is provided and engages on a foldable bottom flap and lifts it up substantially parallel to the transport plane, while the tubular cut or the material web brought into the form of a tube is continuously moved on.
  • at least one folding knife fixes a pre-folding with its folding cutting edge, so that the bottom flap can then lie on the part to be produced after the suction element has been lowered.
  • the web or blank is moved further while the suction element lowers and the suction element finally releases the bottom flap as soon as the zigzag-shaped folding process is completed.
  • a plurality of suction elements which are effective at the same time and a plurality of folding knives which are also effective at the same time are provided in order to ensure that the bottom flap is properly folded back in a zigzag fashion.
  • a blank 1 for an envelope, bag, mailing bag or the like called product 1 'below. 1 comprises a front part 2 e.g. with a closure flap 3 and two back part halves 5 and 6 forming a back part 4 and a bottom flap 7 and bottom flap halves 8, 9 each arranged on the bottom on the back part halves 5, 6.
  • a front part 2 e.g. with a closure flap 3 and two back part halves 5 and 6 forming a back part 4 and a bottom flap 7 and bottom flap halves 8, 9 each arranged on the bottom on the back part halves 5, 6.
  • the two back part halves 5, 6 are connected to one another by means of central adhesive, there is instead the cut 1 a tubular blank, the two bottom flap halves 8, 9 forming a bottom flap 10 belonging to the back part 4, which is shown in FIG. 2 (method step E) lying on top.
  • the blank 1 also has a side part 11 or 12 between the front part 2 and the two back part halves 5, 6.
  • These side parts 11, 12 serve to form side folds, for which purpose there are also a plurality of pre-creases in the form of a front longitudinal pre-cut 13 or 14, a back part - longitudinal pre-cut 15 or 16 and one each mean longitudinal protrusion 17, 18 are provided.
  • the longitudinal breaks 13 - 18 divide the side parts 11 and 12 into two longitudinal strips 19 and 2o or 21 and 22, each of which results in side folds 23, 24 in pairs, as is also shown in FIG. 2 (method step L).
  • the blank 1 has several cross-cuts. These include a transverse flap protrusion 25, a transverse flap bottom flap 26 and transverse protrusions 27 and 28 located in its extension, which limit the halve flap halves 8, 9.
  • the bottom flap protrusion 26 also extends in a straight line through bottom side flaps 29, 3o, which are located in an extension of the side parts 11, 12.
  • angle protrusions 31, 32 are provided on the bottom in the side parts 11, 12, and in each case a fold-back protrusion 33 or 34 extends parallel to the transverse protrusions 27, 28 on the base side across the back part halves 5, 6 from their respective outer edge 35, 36 to the respective one Interface 37, 38 of the angle breaks 31, 32 with the respective middle longitudinal breaks 17, 18 of the side parts 11, 12.
  • the manufacturing process for the production of a product 1 ' consists according to Fig. 2 when using web-like material 4o e.g. from the following process steps.
  • the longitudinal breaks 13-18 as well as the transverse breaks and the angular breaks are first introduced into the material 40. Then the necessary cuts according to the process step B is generated and in method step C the side flap 6 is provided with a glue trace 41 on its inside. In method step D, the side flaps 5 and 6 are folded over, so that a tubular web piece 42 is formed in accordance with method step E. The two bottom flap halves 8 and 9 now together form a bottom flap 10 on the back.
  • step X the bottom flap 1o is set back zigzag parallel to the surface of the tubular web piece 42 against its transport direction (arrow A) in the direction of the arrow b, whereby the bottom flap 1o consisting of the two bottom flap halves 8,9 on the two back part halves forming the back part 4 5, 6 comes to rest.
  • This method step X takes place either according to FIG. 2 when the tubular web piece 42 is still connected to the web-shaped material or on an already separated tubular blank 1 ′′ according to FIG. 9.
  • the products 1 ′ are separated according to FIG. 2 between process steps Y and F and thus after process step X.
  • a blank 1 ′′ can also be cut off before process step X.
  • This device 44 also includes a fold-back device 45 for carrying out the zigzag-shaped fold-back process relating to the bottom flap 10. Only this is of interest in the context of the present invention.
  • the folding-back device 45 comprises a deflection roller 47 mounted in the frame walls 46 for the web-like material 4o, this web-shaped material 4o being fed to the deflection roller 47 in the form of still connected, tubular web pieces 42. Furthermore, a work roller 48 and a pair of pressure rollers 49, 50 and guide elements 51, 52 and 53 and 54 are provided in front of and behind the work roller 48, respectively.
  • the fold-back device 45 also has at least one suction element 55 and a folding knife 56. Both the suction element 55 and the folding knife 56 are arranged on arms 57 and 58, respectively. The suction element 55 and the folding knife 56 are pivotally mounted around the respective arm 57 or 58 as a radius. This happens around swivel axes 59, 6o, on each of which a suitable drive, not shown in the figures, engages.
  • three folding knives 56 are arranged with their holders 61 on the swivel axis 6o.
  • Two folding knives 56 are each located far outside and are effective in the area of the edges of the tubular web pieces 42. 8 there are also a plurality of suction elements 55 which are directed toward the work roll 48 with their suction openings and which may furthermore have fingers 62 which are mechanically effective.
  • a folding plate 63 (FIG. 8) can also be provided instead of a centrally arranged suction element.
  • FIG. 5 there is a tubular track piece 42, not yet separated from the sheet-like material 4o (FIG. 2), between the two guide elements 51 and 52 and, with its bottom flap 1o advancing in the transport direction a, lies directly under the suction element (s) 55 Suction opening 64 of the suction element (s) 55 is located directly above the bottom flap 10.
  • the other bottom flap 7 of the tubular web piece 42 lies on the work roll 48.
  • the suction element (s) 55 are in a lowered position, while the folding knife (s) 56 are still in their position rear or waiting position.
  • the suction element (s) 55 have raised the bottom flap 10 into a position parallel to the transport direction a or to the transport plane Z in the region of the work roll 48, the back part transverse strip 43 (see also FIG. 2, method step E) in one standing position has reached the level of the tubular track piece 42.
  • the folding knife 56 pivots or it pivots the folding knives 56 into their working position and, with their folding knife edges 65, lie against the fold-forward protrusion 33 and 34, respectively, between the back transverse stripe 43 or the back-fold-back part 43 and the other bottom flap 7 are arranged (Fig. 6).
  • the suction elements 55 lower again according to FIG. 7, while the folding blades 56 still move with the tubular track piece 42, so that the folding blade cutting edge 65 lies against the folding-back pre-bridges 33, 34 for as long as possible.
  • the back part transverse strip 43 / the back fold back part 43 swivels clockwise from the position according to FIG. 6 into the position according to FIG. 7 and finally lies down on the back part 4 when the suction element (s) 55 are pivoted back.
  • the bottom flap 1o has laid on the back part transverse strip 43 / the back refolding part 43, with which the zigzag folding back process of the bottom flap 1o has ended.
  • the folding blades 56 have a largely only stabilizing function.
  • the arms 57 of the suction elements 55 and the arms 58 of the folding blades 56 are each arranged approximately perpendicular to one another in the waiting and in the working position. Furthermore, the pivot axes 59, 60 of the suction elements 55 and the folding knife 56 lie parallel to the transport plane of the tubular web pieces 42 and transversely to the transport direction a of the web pieces 42. The folding knife 56 finally each has a folding knife edge 65 pointing in the transport direction a.
  • FIGS. 4-7 relate to a fold-back device 45 when working on still connected tubular web pieces 42
  • FIG. 9 shows a fold-back device 45 'for tubular blanks 1' 'which have already been cut into individual pieces.
  • the suction elements 55 and the folding knives 56 as well as their storage and their drives do not differ from those of the fold-back device 45.
  • the work roll 48 ' has a suction device 7o with suction openings 71 on its circumference or a gripper device so that the individual , tubular blanks 1 '' are securely held on their circumference.
  • additional guide rollers 72 and guide elements 73 are provided in order to ensure proper functioning.
  • suction device 7o or the gripper device Details of the suction device 7o or the gripper device are of no interest here and are generally known.
  • the product 1 ' is an envelope, the back part 4 of which consists of two back part halves 5 and 6, which are connected to one another by means of central adhesive.
  • the back part 4 can, however, also be in one piece and connected to one or the other side part 11 or 12 by means of side gluing. It is also possible that the product 1 'has no side folds 23, 24 (see FIG. 2, method step L).
  • the invention is therefore not limited to the use of certain products and also not to the specifically illustrated exemplary embodiments, rather further modifications are possible without deviating from the basic inventive idea.
  • suction elements 55 execute a linear or at least partially linear lifting movement. It is also possible to use a work roll 48 'with its suction device 7o according to FIG. 9 in conjunction with the fold-back device 45 according to FIGS. 4-7.

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  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
EP94107410A 1993-05-21 1994-05-13 Appareil pour la fabrication continue d'enveloppes, de bourses, de sachets d'envoi etc. Expired - Lifetime EP0630743B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4317071 1993-05-21
DE4317071A DE4317071A1 (de) 1993-05-21 1993-05-21 Vorrichtung zum kontinuierlichen Herstellen von Umschlägen, Beuteln, Versandtaschen u. dgl.

Publications (2)

Publication Number Publication Date
EP0630743A1 true EP0630743A1 (fr) 1994-12-28
EP0630743B1 EP0630743B1 (fr) 1998-08-05

Family

ID=6488675

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94107410A Expired - Lifetime EP0630743B1 (fr) 1993-05-21 1994-05-13 Appareil pour la fabrication continue d'enveloppes, de bourses, de sachets d'envoi etc.

Country Status (6)

Country Link
EP (1) EP0630743B1 (fr)
JP (1) JPH07144378A (fr)
AT (1) ATE169269T1 (fr)
CA (1) CA2124064A1 (fr)
DE (2) DE4317071A1 (fr)
ES (1) ES2119016T3 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207456A5 (fr) * 1972-11-20 1974-06-14 Windmoeller & Hoelscher
US3967544A (en) * 1973-05-01 1976-07-06 National Petro Chemicals Corporation Grocery sack process and machine
FR2601899A1 (fr) * 1986-07-24 1988-01-29 Chandellier Antoine Machine a faconner les soufflets de fond des enveloppes des sachets et sacs en papier comportant trois soufflets

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915295C (de) * 1952-04-09 1954-07-19 Windmoeller & Hoelscher Vorrichtung zum Herstellen von Kreuzbodenbeuteln
DE3433347A1 (de) * 1983-03-24 1985-10-03 Niedermayr Papierwarenfabrik Ag, 8200 Rosenheim Vorrichtung zur herstellung von faltbodensaecken
DE3613117C2 (de) * 1986-04-18 1995-12-14 Winkler Duennebier Kg Masch Faltvorrichtung
DE4105140A1 (de) * 1991-02-20 1992-08-27 Winkler Duennebier Kg Masch Verfahren zum kontinuierlichen herstellen von umschlaegen, beuteln oder versandtaschen sowie mit dem verfahren hergestelltes produkt

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2207456A5 (fr) * 1972-11-20 1974-06-14 Windmoeller & Hoelscher
US3967544A (en) * 1973-05-01 1976-07-06 National Petro Chemicals Corporation Grocery sack process and machine
FR2601899A1 (fr) * 1986-07-24 1988-01-29 Chandellier Antoine Machine a faconner les soufflets de fond des enveloppes des sachets et sacs en papier comportant trois soufflets

Also Published As

Publication number Publication date
ES2119016T3 (es) 1998-10-01
DE59406598D1 (de) 1998-09-10
EP0630743B1 (fr) 1998-08-05
DE4317071A1 (de) 1994-11-24
CA2124064A1 (fr) 1994-11-22
JPH07144378A (ja) 1995-06-06
ATE169269T1 (de) 1998-08-15

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