EP3328629B1 - Dispositif et procédé de fixation d'une partie inférieure ouverte d'une pièce tubulaire - Google Patents

Dispositif et procédé de fixation d'une partie inférieure ouverte d'une pièce tubulaire Download PDF

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Publication number
EP3328629B1
EP3328629B1 EP16738700.0A EP16738700A EP3328629B1 EP 3328629 B1 EP3328629 B1 EP 3328629B1 EP 16738700 A EP16738700 A EP 16738700A EP 3328629 B1 EP3328629 B1 EP 3328629B1
Authority
EP
European Patent Office
Prior art keywords
roller
counter
deflection roller
front deflection
piece
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.)
Active
Application number
EP16738700.0A
Other languages
German (de)
English (en)
Other versions
EP3328629A1 (fr
Inventor
Carsten Brommer
Jakob DERKSEN
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 EP3328629A1 publication Critical patent/EP3328629A1/fr
Application granted granted Critical
Publication of EP3328629B1 publication Critical patent/EP3328629B1/fr
Active 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
    • B31B70/004—Closing 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
    • B31B70/003—Opening or distending 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
    • 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
    • B31B2150/0014—Flexible containers made from sheets or blanks, e.g. from flattened tubes with square or cross bottom having their openings facing transversally to 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B31B2150/003—Flexible containers made from sheets or blanks, e.g. from flattened tubes made from tubular sheets
    • 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
    • B31B2150/20—Flexible containers made from sheets or blanks, e.g. from flattened tubes the longitudinal axes of the containers being perpendicular to the direction in which the sheets or blanks are fed
    • 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
    • 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
    • B31B70/04—Feeding sheets or blanks

Definitions

  • the invention relates to a device for fixing an open bottom of a piece of hose according to the preamble of claim 1 and an associated method according to the preamble of claim 13.
  • the WO 2012/49040 shows such a pressing tool, which comprises a circulating belt, which is guided over a front guide roller.
  • the tape acts on the open side of the floor. With the tape, the ground can be pressed against an abutment.
  • the diverting pulley not only guides the belt but presses the ground against the counter-surface so that, as already described, errors in the bottom opening are directly preserved.
  • the object of the present invention is therefore to propose an apparatus and a method with which the manufacturing quality of the bags can be increased.
  • the front deflection roller is spaced from the counter-surface.
  • the currently open bottom is not pressed directly onto the counter-surface, but is first slowly approached the counter-position. This makes it possible to correct malformations or misalignments. Overall, the quality of the bags can be increased and the rejects reduced.
  • "open bottom” means that the front and rear walls have already been folded apart in the end area of the hose section, they are not yet in a plane. Such a ground would still be not completely open. In the final state of the bottom opening, the front and rear walls lie in one plane.
  • the front wall was folded back on itself, while the back wall is completely - both the bag wall and the part of the bottom - located in a plane.
  • the open bottom is located substantially in the plane of the bag body.
  • the open bottom can lie in a different plane than the bag body, whereby the present invention is also applicable here.
  • the tape runs in a direction of rotation and has an extent transverse to this direction of rotation which is at least ten times greater than its width, the width being at least 5 mm.
  • the band is positioned to engage the fold edge about which at least the front or back wall has been folded over.
  • the tape also captures the perpendicular bisector of the triangular corner impacts. These mid-perpendiculars are substantially congruent with the fold lines formed by the side edges of the hose piece. Precisely due to the too rapid depression of these folded edges, errors can occur in devices of the prior art.
  • the rotational speed of the belt preferably equals the transport speed of the hose pieces in the device according to the invention.
  • the counter-position can be formed by a fixed support surface. However, it can be formed by a revolving, in particular rotating support element.
  • the running or rotational speed of the support element advantageously also corresponds to the transport speed of the hose pieces.
  • the invention advantageously has an effect when it comprises components of a device for producing sacks, which comprise a woven fabric of stretched or stretched polyolefin tapes, for example stretched or stretched polypropylene tapes.
  • a device for producing sacks which comprise a woven fabric of stretched or stretched polyolefin tapes, for example stretched or stretched polypropylene tapes.
  • This material is difficult to apply creases.
  • sacks can be processed particularly advantageously which, in addition to the aforementioned fabric, also comprise a coating, for example a coating Polyethylene coating, especially one that has been applied after the starting base hose material has been laid flat.
  • a coating for example a coating Polyethylene coating, especially one that has been applied after the starting base hose material has been laid flat.
  • the sack edge which can be found as described in the region of the mid-perpendicular of the floor triangles, again emphasized, since this coating usually protrudes at the side edges (so-called laminate supernatant).
  • the front guide pulley in or against the transport direction of the hose pieces form slidably.
  • the angle which the belt occupies downstream of the deflection roller with the counter-position can be changed. At a given transport speed, this can influence the speed of depression. This adjustment is advantageous when different bag formats are to be processed.
  • the front deflection roller follows a pressure roller.
  • This is preferably positionally perpendicular to / and or in the transport direction of the hose pieces.
  • this pressure roller is also spaced from the counter-surface. So it does not cause the tape is pressed on the counter. Their distance to the counter-position is smaller than the distance between the front deflection roller and the counter-position.
  • the pressure roller is preferably mounted in a pivot arm, which is preferably pivotable about the axis of rotation of the front guide roller.
  • a pivot arm which is preferably pivotable about the axis of rotation of the front guide roller.
  • the front deflection roller and / or the pressure roller follows - seen in the transport direction of the hose pieces - at least one pressure roller, with which the tape against the counter-position can be pressed. Only at the point of action of this pressure roller is the opened bottom thus completely depressed and fixed in its position.
  • a pressing tool preferably a pair of pressure rollers provided.
  • the belt as well as the individual rollers already described do not cover the entire width of the opened floor.
  • This pressing tool thus unfolds an optimal effect in connection with the device according to the invention, because only then is a pressing of a already optimally fixed its position ground.
  • a centering device is provided, with which in particular the folded edge of the Eckeinelle can be centered.
  • the folded edge is then centered when it lies on the folded edge of the folded front and / or rear wall.
  • the open bottom is symmetrical and can be further processed to a high quality bag.
  • the centering device acts on parts of the floor when it has already reached the area of influence of the front deflecting roller and / or the pressure roller and / or the pressure roller. Because then the corrected soil can be fixed immediately.
  • the centering device can be integrated in one or more of said rollers.
  • two guide elements are provided, which have a distance to each other transversely to the transport direction of the hose pieces, wherein the guide elements at least partially extend around the front guide pulley.
  • These are thus preferably adapted to the outer circumference of the deflection roller, so that the bottom run in between deflecting roller and counter-bearing, while still the guide elements act on the ground.
  • the guide elements act with their side edges on the ground, taking advantage of the presence of the folded edge in the Eckeinellen and in particular the presence of the laminate supernatant. In this or on this, the guide can exert a lateral force and thus correct the situation.
  • the spacing of the guide elements is steadily reduced in the transport direction, so that the combination of the two guide elements for the folded edge or the laminate supernatant forms a funnel. In this case, the accuracy of the correction can even be increased.
  • Fig. 1 shows a device 100 according to the invention, which may be part of a Bodenlegevorraum for the production of sacks of pieces of hose.
  • the tube pieces of which a piece of tubing 101 is shown, are transported successively transversely to their main extension direction on a table 102, which serves as an abutment or at least part of an abutment by means of a transport device, not shown, in the transport direction z by the device 100.
  • the tube piece 101 has an already open bottom 106 at its visible end. From this floor, the rear wall 103 and the front Eckeinschlag 104 and the rear Eckeinschlag 105 are visible. The floor 106 has not yet been pressed, so that the Eckeinetti 104 and 105 are still a bit high.
  • the device comprises a circulating belt 110, which is guided over deflecting rollers 111. These pulleys are rotatably mounted in a frame 112, which in turn is supported on a machine frame, not shown.
  • the band 110 is also deflected by the front guide roller 113. This deflection roller 113 is spaced in the direction x from the counter-position.
  • the front deflection roller adjoins the pressure roller 114 in the direction U, wherein this roller 114 is also spaced in the direction x from the counter-position.
  • the belt 110 is guided over a pressure roller 115, which presses the belt against the counter-surface 102 with a force.
  • This force is applied according to the embodiment shown by a resilient element, but the invention is not limited thereto.
  • the pressure roller 115 is rotatably mounted in an angled lever arm 116, which in turn is articulated pivotably in the pivot bearing 117 in the frame.
  • the resilient element is designed as a tension spring 118.
  • further pressure rollers 115 may be provided, which are arranged in the same manner on the frame 112.
  • the upper pressure roller 120 of a pair of pressure rollers 122 may be disposed on the frame 102.
  • the lower press roll 121 is arranged on the counter-layer 102, for example in a positionally fixed manner.
  • the upper press roller 120 is rotatably mounted in the lever arm 123, which is articulated in the pivot bearing 124. Also on this lever arm acts a resilient element 125, which is also shown as a spring, but preferably designed as a pneumatic cylinder, which is not shown.
  • the press roller pair 122 serves for pressing the opened and fixed floor.
  • the entire band 110 also serves to press the opened and fixed bottom against the counter-layer 102.
  • the frame 112 is supported via a pivot bearing 130 on machine parts. About this pivot bearing 130, the frame 112 can be pivoted in the direction of the double arrow S, which in particular the distance between the front guide roller 113 to the counter-position 102 is adjustable.
  • the pressure rollers 115 and the upper pressure roller 120 do not change their position relative to the counter position during a pivoting movement, since they are pivotally mounted in the frame 112.
  • the front guide roller 113 is rotatably mounted in an extension piece 140, which in turn is mounted relative to the frame 112 slidably.
  • the guide roller 113 can ultimately be moved relative to the counter-position in or against the transport direction z. This possibility of displacement is represented by the double arrow V.
  • the pivot arm 141 On the extension piece 140, the pivot arm 141 is supported, which is mounted such that it can pivot in the direction of the double arrow W about the axis of rotation of the front guide roller 113.
  • the pressure roller 114 In the pivot arm 141, the pressure roller 114 is mounted.
  • a compensating roller 119 is provided, which is movable in the direction of the double arrow A and which is acted upon by a force. Overall, it provides for the compensation of the different path lengths.
  • another pivot lever 142 is supported, which is also preferably pivotable about the axis of rotation of the front guide roller 113.
  • This pivoting movement is symbolized by the double arrow R.
  • a sliding plate 143 is slidably disposed, which can be moved in the direction of the double arrow P relative to the pivot lever 142 and thus relative to the front guide roller 113.
  • the guide elements 150 can thus be adjusted in the distance and, via the pivoting possibility, also in their circumferential position relative to the deflection roller 113.
  • the opened bottom is grasped by the latter and by the band 110 in the region between the deflection roller 113 and the pressure roller 115, and the entire bottom is successively passed on laid down and thus fixed in its position.
  • the influence of the guide elements 150 is in the FIGS. 2 and 3 to recognize more clearly. From the tube piece 101, the later bag body 107 can now be seen more clearly. In the view of FIG. 2 is still the rear Eckeinschlag 105 can be seen. Furthermore, the laminate supernatant 152 can be seen, which is shown as a short, vertical bar. The two guide elements 150 form a funnel-shaped inlet 151, in which the laminate projection or, if this is not present, the folded edge enters. If the laminate supernatant is incorrectly positioned, it is guided along the edges 153 of the guide elements 150 and thus corrected in the positioning.
  • the laminate supernatant 152 or the folded edge are in the FIG. 3 drawn as a broken line. It can also be seen the end portion 108 of the front wall, which is folded back on itself. The corresponding folded edge carries the reference numeral 109. Ideally, the folded edge 109 and the laminate supernatant 152 are aligned so that a sack satisfying the qualitative requirements can then be produced as the sack is produced.

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  • Making Paper Articles (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (12)

  1. Dispositif (100) pour la fixation d'un fond ouvert d'un élément de gaine (101) qui est constitué d'au moins une matière plastique,
    avec au moins une bande circulaire (110), qui peut être guidée par l'intermédiaire d'au moins un galet de renvoi avant (113) et d'au moins un autre galet, moyennant quoi il est possible d'agir avec la bande circulaire (110) sur le côté ouvert du fond (106), le fond (106) pouvant être comprimé par la bande circulaire (110) contre un contre-appui,
    caractérisé en ce que
    le galet de renvoi avant (113) est distant du contre-appui et
    vu dans la direction de transport (U) des éléments de gaine (101), au moins un galet de pression (115), avec lequel la bande peut être comprimée contre le contre-appui, suit le galet de renvoi avant (113).
  2. Dispositif (100) selon la revendication 1,
    caractérisé en ce que
    le galet de renvoi avant (113) peut être déplacé dans ou contre la direction de transport (U) de l'élément de gaine (101).
  3. Dispositif (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    le galet de renvoi avant (113) peut être réglé en hauteur par rapport au contre-appui.
  4. Dispositif (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    vu dans la direction de transport (U) des éléments de gaines (101), au moins un galet de pression (114), qui est mobile perpendiculairement à et/ou dans la direction de transport (U), suit le galet de renvoi avant (113).
  5. Dispositif selon la revendication précédente,
    caractérisé en ce que
    le galet de pression (114) est logé dans un bras pivotant (141, 142), le bras pivotant (141, 142) pouvant pivoter autour de l'axe de rotation du galet de renvoi avant (113).
  6. Dispositif (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    vu dans la direction de transport (U) des éléments de gaines (101) une paire de rouleaux de pression (122), qui comprend un rouleau de pression et un contre-appui, avec lesquels le fond ouvert peut être comprimé, est prévu derrière le galet de renvoi avant (113).
  7. Dispositif (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    un dispositif de centrage est prévu, avec lequel la position de l'arête de pliage des rabats d'angles peut être corrigée.
  8. Dispositif (100) selon l'une des revendications précédentes,
    caractérisé en ce que
    deux éléments de guidage (150) sont prévus, qui présentent entre eux une distance transversalement par rapport à la direction de transport (U), les éléments de guidage (150) entourant au moins partiellement le galet de renvoi avant (113).
  9. Dispositif (100) selon la revendication précédente,
    caractérisé en ce que
    la distance entre les éléments de guidage (150) vue dans la direction de transport (U) est réduite en permanence.
  10. Dispositif (100) selon l'une des revendications 8 à 9,
    caractérisé en ce que
    les éléments de guidage (150) sont réglables en hauteur par rapport au contre-appui.
  11. Dispositif (100) selon l'une des revendications 8 à 10,
    caractérisé en ce que
    les éléments de guidage (150) sont reliés avec un bras pivotant (141, 142), le bras pivotant pouvant pivoter autour de l'axe de rotation du galet de renvoi avant (113).
  12. Procédé de fixation d'un fond ouvert d'un élément de gaine (101), qui est constitué d'au moins une matière plastique,
    avec au moins une bande circulaire (110) qui est guidée par l'intermédiaire d'au moins un galet de renvoi avant (113) et d'au moins un autre galet, moyennant quoi il est possible d'agir avec la bande circulaire (110) sur le côté ouvert du fond, le fond étant comprimé par la bande circulaire (110) contre un contre-appui,
    caractérisé en ce que
    le fond ouvert de l'élément de gaine (101) est introduit entre le galet de renvoi avant (113), distant du contre-appui, et le contre-appui et
    vu dans la direction de transport (U) des éléments de gaines (101), au moins un galet de pression (115), avec lequel la bande est comprimée contre le contre-appui, suit le galet de renvoi avant (113).
EP16738700.0A 2015-07-31 2016-07-01 Dispositif et procédé de fixation d'une partie inférieure ouverte d'une pièce tubulaire Active EP3328629B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015214664 2015-07-31
PCT/EP2016/065560 WO2017021077A1 (fr) 2015-07-31 2016-07-01 Dispositif et procédé de fixation d'une partie inférieure ouverte d'une pièce tubulaire

Publications (2)

Publication Number Publication Date
EP3328629A1 EP3328629A1 (fr) 2018-06-06
EP3328629B1 true EP3328629B1 (fr) 2019-06-12

Family

ID=56411590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16738700.0A Active EP3328629B1 (fr) 2015-07-31 2016-07-01 Dispositif et procédé de fixation d'une partie inférieure ouverte d'une pièce tubulaire

Country Status (3)

Country Link
EP (1) EP3328629B1 (fr)
CN (1) CN108136708B (fr)
WO (1) WO2017021077A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1561473B1 (de) * 1967-06-19 1971-08-26 Windmoeller & Hoelscher Vorrichtung zum Aufziehen und Flachlegen von Kreuzboeden an quergefoerderten Kunststoff-Schlauchabschnitten
DE102008017444B4 (de) * 2008-04-03 2011-07-28 Windmöller & Hölscher KG, 49525 Vorrichtung und Verfahren zur Herstellung von Säcken aus Schlauchstücken
CN201525145U (zh) * 2009-11-04 2010-07-14 盐城宏景包装机械有限公司 上带输送装置
CN201580016U (zh) * 2009-12-31 2010-09-15 广州市国研机械设备制造有限公司 用于夹持输送带的可伸缩送料机构
ES2424952T3 (es) * 2010-10-14 2013-10-10 Starlinger & Co Gesellschaft M.B.H. Procedimiento y dispositivo para la configuración de fondos abiertos en zonas finales de cuerpos de saco tubulares
CN102673016A (zh) * 2011-03-07 2012-09-19 上海艾录纸包装有限公司 提高粘合效果的紧压装置
CN204431810U (zh) * 2014-11-28 2015-07-01 温州正博印刷机械有限公司 手提袋成型机及其袋体调头装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN108136708B (zh) 2020-12-15
CN108136708A (zh) 2018-06-08
EP3328629A1 (fr) 2018-06-06
WO2017021077A1 (fr) 2017-02-09

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