EP1516719B1 - Cylindre pour la formations de fonds d'une machine pour la fabrication de sacs - Google Patents

Cylindre pour la formations de fonds d'une machine pour la fabrication de sacs Download PDF

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Publication number
EP1516719B1
EP1516719B1 EP04021275A EP04021275A EP1516719B1 EP 1516719 B1 EP1516719 B1 EP 1516719B1 EP 04021275 A EP04021275 A EP 04021275A EP 04021275 A EP04021275 A EP 04021275A EP 1516719 B1 EP1516719 B1 EP 1516719B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
vacuum
forming cylinder
paper tube
axial direction
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.)
Not-in-force
Application number
EP04021275A
Other languages
German (de)
English (en)
Other versions
EP1516719A3 (fr
EP1516719A2 (fr
Inventor
Thomas Bozic
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP1516719A2 publication Critical patent/EP1516719A2/fr
Publication of EP1516719A3 publication Critical patent/EP1516719A3/fr
Application granted granted Critical
Publication of EP1516719B1 publication Critical patent/EP1516719B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/022—Holders for feeding or positioning sheets or webs
    • B31B70/024—Rotating holders, e.g. star wheels, drums
    • 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
    • B31B2150/0012—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing in the direction of movement
    • 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 bottoming cylinder of a bagging machine according to the preamble of claim 1.
  • Pouch machines are known. They are for example in fonts DE 42 05 062 A1 . DE 197 02 144 A1 and F 2 548 161 shown.
  • the functional core of such a machine is a floor maker cylinder.
  • This Bodenmacherzylinder usually takes over pieces of tubing, which has been separated from a paper tube, which has been unwound from a unwinding unit in a tear unit to paper tube pieces or sections.
  • the Bodenmacherzylinder takes over these paper tube pieces, arresting them at its periphery and leads them during one revolution to various processing stations, which are arranged around the Bodenmacherzylinder to. In this case, sleeves are formed on the tube pieces, which are glued and thus form solid bag bottoms.
  • Both grippers and vacuum suction devices are used to lock the hose sections to the floor maker cylinder. It has proven useful to use both devices together on more modern bagging machines. On bag machines often all possible format changes are made. The possible format changes include a change in the width of the bag to be produced, which of course also causes a change in the width of the supplied paper tube or the individual paper tube sections. Consequently, the holding devices which the Lock the paper tube sections on the circumference of the bag making cylinder, and switch over. The changeover relates to the position of these holding devices in the axial direction of the bag making cylinder, which is generally identical to the width of the later bags. According to the prior art, above all, a complicated adjustment of the vacuum suction devices is necessary.
  • the vacuum aspirators typically have numerous apertures which cover the area occupied by the bag sections on the circumference of the bag maker cylinder. When changing from wide to narrow bags, there is a risk that these suction openings will attract false air and thus weaken the vacuum. Therefore, these suction openings are usually designed as threaded holes, which can be closed with screws.
  • the grippers which are able to grip the sides of the bag and are therefore called “side grippers", are also adjusted in the axial direction of the ground maker. The conversion work is complex.
  • Object of the present invention is therefore to simplify this conversion work.
  • This object is solved by the characterizing features of claim 1.
  • it is of course possible to readjust two grippers on both sides of the tube section in the axial direction of the Bodenmachers.
  • the same or the same applies to the Vakuumansaugvorraumen. Therefore, the simplest embodiment of the invention is limited to providing an adjusting device, with which at least one gripper and at least one vacuum suction device can be adjusted together to the width of the paper tube pieces.
  • An advantageous embodiment of the invention has a vacuum line which is displaceable together with a gripper.
  • This vacuum line is associated with at least one suction opening, which is brought by the adjustment movement of the gripper in a position below the desired position of the bag. In this way, the at least one suction opening and the gripper can bring together in the new desired position.
  • the term "vacuum lines" is used in the present application for Vacuum lines, which provide the air necessary for the suction of the bag needed.
  • this closure means in this way it can be ensured that a gripper, which is moved from an outward position on the in the axial direction of the Bodenmacherzylinders in an inner position, this closure means, said closure means successively close vacuum lines so that the outer in the axial direction of the Bodenmacherzylinders Suction openings are closed one after the other.
  • a vacuum line supplies a plurality of suction openings, wherein these plurality of suction openings in the axial direction of the cylinder have different positions. Therefore, this vacuum line will extend at least partially in the axial direction of the cylinder.
  • This line can be closed with a plunger, which slides in the line and is displaceable in adjusting the position of a gripper with this.
  • this embodiment will provide a conduit which extends parallel to the direction of adjustment of the gripper, so that the plunger is carried in parallel with the gripper.
  • the vacuum supply of this line will therefore usually come from the lying in the axial direction of the Bodenmacherzylinders inside areas.
  • a floor maker cylinder generally has several areas within which hose sections are locked and transported by the floor maker cylinder. Often, in this way, a floor maker cylinder transports four sections of hose past the tillage stations simultaneously.
  • the locking means which has such a Bodenmacherzylinder be similar and equipped in accordance with the invention.
  • Fig. 1 shows a plan view of one of the areas of a Bodenmacherzylinders be set or locked in the tube sections.
  • two types of devices are needed.
  • On the two sides of the bag side grippers 1 a and 1 b are provided. These side grippers 1 a and 1 b grip the lateral ends of the tube portion and set them by a gripping movement, while exerting a force in the radial direction of the cylinder on the axis of rotation of the Bodenmacherzylinders.
  • numerous vacuum openings or suction openings 2 and 3 are provided, which additionally attract the hose section and thus improve its fixation on the circumference of the Bodenmacherzylinders.
  • the vacuum openings 3a and 3b which are designed to be displaceable in the axial direction of the floor maker cylinder and the vacuum openings 2b fixed in the axial direction are to be distinguished.
  • the axially movable suction openings 3a and 3b are displaceable with the slides 1 a and 1b in the axial direction of the Bodenmacherzylinders. This ensures that the suction openings 3a and 3b are located below the desired position of the bag during operation and do not draw any false air. In the stationary suction openings 2 a and 2 b, this can only be guaranteed in a different way.
  • These holes are supplied by the running in the axial direction of the Bodenmacherzylinders vacuum line 7 with vacuum.
  • This vacuum line 7 receives the negative pressure from the vacuum line 9, which in turn extends in the radial direction of the Bodenmacherzylinders and receives from the radial direction inside the Bodenmacherzylinders the negative pressure or the vacuum. It should be noted that the bore 9 opens at a point in the conduit 7, which is centrally located in the axial direction of the Bodenmacherzylinders.
  • the vacuum line 7 supplies, in addition to the bores 3a and 3b connected directly to it, the bores 3a and 3b displaced in the circumferential direction via vacuum lines 11 extending in the circumferential direction.
  • Figure 2 shows a similar portion of a prior art bottoming cylinder intended to receive a bag.
  • the reference numerals are used in the same way as in Figure 1.
  • the closure of the same in a format change on narrow tube sections, in which the axially outer openings 2a and 2b must be closed, is independent of a displacement of the gripper.
  • the closure of the suction openings is done manually by means of screws which are screwed into the threaded holes designed as suction openings and seal them in this way.
  • FIG. 3 again shows two vacuum lines 11 extending in the circumferential direction. Furthermore, by a dashed rectangle, the desired position of a hose section 12 is shown on the bottom maker cylinder. On the representation of the other, extending in the circumferential direction of the vacuum supply lines 11 is omitted for illustrative reasons. Since this line is not visible on a plan view, the vacuum supply lines 11 are shown in dashed lines.
  • FIG. 4 shows a sketched side view of a bag machine 135. This figure has been inserted to show the preferred location of installation of devices according to the invention. This is primarily about the description of the core function of such a bag machine, which is in the field of tube section formation and soil preparation. For this purpose, it is again noted at this point that the Bodenmacherzylinder and the Bodenöffner are also explained in the German Auslegeschriften 1611699 and 1080846.
  • the bag machine shown in FIG. 4 is supplied with a paper web 100 from right to left in the transport direction of the paper web or of the bag components z.
  • the hose forming station 101 which comprises the rollers 102 and also guide the conveyor belt 103, the paper web is folded into a tube 130.
  • the finished paper tube 130 is fed to the tear-off unit 131.
  • the feed rollers 106 which guide the paper web and lock the paper webs between opposing opposing rollers in opposition. After passing through the nip between the feed rollers, the paper tube is separated from the knife 108, which rotates at the rotating Knife carrier 107 is locked, which leads the knife along the dashed path 107 a, perforated. During the perforation process itself, the counter-pressure cylinder 109 forms an abutment.
  • Two knives 108 are attached to the knife carrier 107, so that two cross-sections are formed on the tube web 130 during one revolution of the knife carrier 107.
  • the impression cylinder 109 performs during this time two revolutions.
  • the pre-perforated tube then enters the nip between the two tear-off cylinders 110, which run faster than the feed rollers 106.
  • the tube is torn at the perforation, which takes place between the knife 108 and the nip between the Abr regardingzylindern 110.
  • the paper tube is now singulated into paper tube sections 112. These paper tube sections 112 are first transported further by the transport rollers 111.
  • the longitudinal cutting station 105 In which a longitudinal section is introduced into the front end of the hose section between the two rollers 116, which is necessary for the subsequent bottoming.
  • the tube sections are supplied to the bottom opening station 114, which mainly consists of the bottom opener 113. This is where the floors are opened.
  • the aforementioned German Auslegeschrift 1611699 shows such a bottom opener.
  • the pieces of hose are fed to the bottom maker cylinder 115, which takes over these and at different processing stations, which are arranged around the Bodenmacherzylinder passes.
  • the first of these stations is the bottom folding and gluing station 117. The individual elements of this station are shown only sketched and can be found in the cited references.
  • the floors are fixed or pressed in the floor closing station. This is done mainly by the tube sections or bag between the bottom maker cylinder 115 and a press belt 119, which is guided by the rollers 125, are pressed.
  • the tube sections or bag 112 then run around a reversing cylinder 120, which ensures that the bags or Move hose sections further from right to left in the direction of transport of bag components z.
  • a reversing cylinder 120 In general, provided with finished and fixed floors hose sections are then supplied to other processing stations.
  • the bags are often printed and / or provided with carrying handles. At this point, however, the representation of such workstations is omitted. It has also been omitted to show the developments for the paper web 100, which are upstream of the hose forming station 101.
  • FIG. 5 once again showed a bag as it can be made in such a bag machine 135.
  • This bag 123 has gussets 122.
  • FIG. 6 shows a somewhat more advanced bag 121 with carrying handles 124, which have additionally been fixed to the bag with a cover sheet 125.
  • Carrying handles and the methods and apparatus for their preparation and attachment to the bag are known in the art and are used for example in the DE 42 05 062 A1 , which was already mentioned at the beginning, shown. As a rule, such carrying handle stations form components of the bag machine which are downstream of the bottom maker cylinder.
  • Figure 6 also illustrates once again the design of the bag. So the width and height of the bag is shown again. The height of the bag is determined by the length of tube section defined by the tear-off station.
  • the height of the bag or the tube section length is determined primarily by the diameter of the circumferential circle of the knife carrier 107.
  • the width results from the width of the paper web and the settings of the hose station 101. Even with width changes extensive changes in the settings of the tools, for example, on the floor maker cylinder must be made.

Claims (5)

  1. Cylindre pour la formation de fonds (5a, 5b) d'une machine de fabrication de sacs,
    • qui arrête des tronçons tubulaires de papier (12, 124) à son pourtour et les fait passer devant les postes de traitement disposés autour de celui-ci,
    • et qui, pour arrêter les tronçons tubulaires en papier (12, 112) dispose de dispositifs d'aspiration à vide (2a, 2b, 3a, 3b) et de griffes latérales (1a, 1b) qui, avec des dispositifs de réglage associés à celles-ci, sont réglables à la largeur (B) des tronçons tubulaires en papier (112), où ceux-ci sont transportés par le cylindre pour la formation de fonds (5a, 5b) de telle sorte que la largeur (B) des tronçons tubulaires en papier (12, 112) s'étend essentiellement dans la direction axiale (z) du cylindre pour la formation de fonds (5a, 5b),
    caractérisé par
    au moins un dispositif de réglage par lequel au moins une griffe latérale (1a,1b) et au moins un dispositif d'aspiration à vide (2a,2b,3a,3b) peuvent être réglés ensemble à la largeur des tronçons tubulaires en papier (12, 112).
  2. Cylindre pour la formation de fonds (5a,5b) selon la revendication 1
    caractérisé en ce que
    • avec au moins un dispositif de réglage, un déplacement d'une griffe dans la direction axiale du cylindre pour la formation de fonds (5a, 5b) peut être exécuté,
    • et au moins une conduite de vide (7, 9, 6a, 6b) est prévue, qui est déplaçable conjointement avec la griffe latérale (1a, 1b) et
    • qui dispose d'au moins une ouverture d'aspiration (2, 3) au moyen de laquelle les tronçons tubulaires en papier (12, 112) peuvent être aspirés.
  3. Cylindre pour la formation de fonds (5a,5b) selon l'une des revendications précédentes,
    caractérisé en ce que
    • à la face périphérique du cylindre pour la formation de fonds (5a, 5b), aux emplacements prévus pour la réception des tronçons tubulaires en papier (12,112), une pluralité d'ouvertures d'aspiration (2,3,3a,3b) est prévue,
    • dont au moins deux ouvertures d'aspiration (2,2a,2b) présentent dans la direction axiale du cylindre des positions différentes,
    • et en ce que ces au moins deux ouvertures d'aspiration (2,2a,2b) sont alimentées par au moins une conduite de vide (7),
    • et en ce que cette au moins une conduite de vide (7) peut être fermée par des moyens d'arrêt,
    • qui, lors du réglage de la position d'une griffe latérale (1a,1b) sont déplaçables avec celle-ci, par quoi l'amenée du vide aux conduites situées dans la direction axiale (z) du cylindre (5a,5b) à l'extérieur du format de sac souhaité, peut être interrompue.
  4. Cylindre pour la formation de fonds (5a,5b) selon la revendication précédente,
    caractérisé en ce que
    • une conduite de vide (7,9,11) alimente au moins deux ouvertures d'aspiration (2,2a,2b) qui, dans la direction axiale du cylindre (5a,5b), ont des positions différentes,
    • que cette conduite de vide (7,9) s'étend au moins partiellement dans la direction axiale (z) du cylindre,
    • et en ce que cette conduite de vide (7,9) peut être fermée par un poussoir qui glisse dans la conduite de vide (7,9) et qui, lors du réglage de la position d'une griffe latérale (1a,1b), est déplaçable avec celle-ci.
  5. Procédé de réglage des griffes latérales (1a,1b) et des dispositifs d'aspiration à vide (2,2a,2b,3a,3b,7,9,11) d'un cylindre pour la formation de fonds (5a,5b) à la largeur des tronçons tubulaires en papier (12,112) qui sont traités par la machine de fabrication de sacs (135), à laquelle appartient le cylindre pour la formation de fonds (5a,5b), en sacs (123),
    caractérisé en ce que
    la position axiale d'au moins une griffe latérale (1a,1b) et l'extension de l'effet d'au moins un dispositif d'aspiration à vide (2,2a,2b,3a,3b,7,9,11) dans la direction axiale peuvent être réglés avec une opération de réglage.
EP04021275A 2003-09-22 2004-09-08 Cylindre pour la formations de fonds d'une machine pour la fabrication de sacs Not-in-force EP1516719B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10344155A DE10344155A1 (de) 2003-09-22 2003-09-22 Bodenmacherzylinder einer Beutelmaschine
DE10344155 2003-09-22

Publications (3)

Publication Number Publication Date
EP1516719A2 EP1516719A2 (fr) 2005-03-23
EP1516719A3 EP1516719A3 (fr) 2006-09-13
EP1516719B1 true EP1516719B1 (fr) 2008-01-23

Family

ID=34177912

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04021275A Not-in-force EP1516719B1 (fr) 2003-09-22 2004-09-08 Cylindre pour la formations de fonds d'une machine pour la fabrication de sacs

Country Status (3)

Country Link
EP (1) EP1516719B1 (fr)
AT (1) ATE384613T1 (fr)
DE (2) DE10344155A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2126920A (en) * 1935-03-14 1938-08-16 Potdevin Machine Co Bag making machine
US2450309A (en) * 1947-01-09 1948-09-28 Allen O Sohn Side gripper for square bottomed paper bag forming machines
DE806312C (de) * 1949-06-29 1951-06-14 Windmoeller & Hoelscher Maschine zum Herstellen von Kreuzbodenbeuteln
DE1611699C2 (de) * 1967-08-25 1975-11-20 Windmoeller & Hoelscher, 4540 Lengerich Vorrichtung zum Herstellen der Böden in einer Klotzbodenbeutelmaschine
DE1813263A1 (de) * 1968-12-06 1970-11-12 Windmoeller & Hoelscher Sackmaschine zum Herstellen einseitig offener Kreuzbodensaecke
FR2210932A5 (fr) * 1972-12-14 1974-07-12 Holweg Const Mec

Also Published As

Publication number Publication date
EP1516719A3 (fr) 2006-09-13
EP1516719A2 (fr) 2005-03-23
DE502004006022D1 (de) 2008-03-13
ATE384613T1 (de) 2008-02-15
DE10344155A1 (de) 2005-04-28

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