EP1035967B1 - Vorrichtung zum öffnen von schlauchförmigen sackkörpern - Google Patents

Vorrichtung zum öffnen von schlauchförmigen sackkörpern Download PDF

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Publication number
EP1035967B1
EP1035967B1 EP99948588A EP99948588A EP1035967B1 EP 1035967 B1 EP1035967 B1 EP 1035967B1 EP 99948588 A EP99948588 A EP 99948588A EP 99948588 A EP99948588 A EP 99948588A EP 1035967 B1 EP1035967 B1 EP 1035967B1
Authority
EP
European Patent Office
Prior art keywords
slide
bag bodies
opening tubular
tubular bag
bodies according
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.)
Expired - Lifetime
Application number
EP99948588A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1035967A1 (de
Inventor
Franz Starlinger Huemer
Gerhard Apfler
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.)
Starlinger and Co GmbH
Original Assignee
Starlinger and Co GmbH
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 Starlinger and Co GmbH filed Critical Starlinger and Co GmbH
Publication of EP1035967A1 publication Critical patent/EP1035967A1/de
Application granted granted Critical
Publication of EP1035967B1 publication Critical patent/EP1035967B1/de
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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B47/00—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved
    • B65B47/04—Apparatus or devices for forming pockets or receptacles in or from sheets, blanks, or webs, comprising essentially a die into which the material is pressed or a folding die through which the material is moved by application of mechanical pressure
    • 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
    • B31B2150/0014—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
    • 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
    • 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/78—Mechanically

Definitions

  • the invention relates to a device for opening tubular at least one end of open sack bodies, with at least one slide which is insertable between sack body walls in an open end of a sack body at least partially fold over at least one end region of a sack body wall, wherein the at least one slide by means of a reciprocating movement of a respective slide into the bag body end to be opened and out of it can be moved out
  • the manufacture of sacks typically involves the provision of Material hoses, either by creating tubular material webs or joining the longitudinal edges of flat material webs into one tubular structures were obtained, cutting the material hoses too Bag bodies of suitable length and the formation of a bag bottom by a suitable one Fold over and close one end of the bag body.
  • the sack with a rectangular bottom is used by experts as a box sack designated.
  • the flat lying sack body In order to form the bottom of such a box sack, the flat lying sack body the end part of one of the two lying one on top of the other Sack body walls along one lying transversely to the longitudinal axis of the sack body Folded line folded over, making the end of the bag body a hexagonal Folding configuration with two parallel opposite edges and two times receives two parallel opposite folding edges.
  • the sack body receives a bottom, which when Unfolding the finished sack takes a rectangular shape.
  • a valve sheet Before the Folding the edges to each other can still be applied a valve sheet, which when final folds of the bag body end receives tubular shape.
  • the first known system comprises a continuously movable one Spreading mechanism that is sensitive and extensive adjustments and readjustments required.
  • the second system comprises a conveyor belt that is movable in stop and go operation to which the bag body lies with its longitudinal axis transverse to the direction of transport are transported to an opening station at which the conveyor belt stops.
  • the edges of the sack body end to be opened become something of the opening station pulled away from each other and a transverse, but otherwise fixed
  • the mounted slider moves into the end of the bag body and folds part of the upper one Sack body wall to the rear, creating the above-mentioned hexagonal Folding configuration arises.
  • the fold line, along which the slider the Sack body wall folds is defined by a bar that extends in the direction of transport the sack body is located above the sack body and after stopping the tape the bag body is lowered and holds it at the same time, with the slide in The inside of the bag body moved over the beam. After folding the slider withdrawn, the bar raised, and the conveyor belt with the folded Bag body can move on.
  • the slide is made by one pneumatic piston-cylinder system in a generally horizontal plane back and forth, in which the bag body lies on the conveyor belt. Disadvantageous This arrangement is the necessary stop-go operation, which is too high Wear and high energy consumption leads and beyond that Production speed is limited because during the entire slide movement the bag body must remain at rest.
  • Other disadvantages of this system of the state of technology are described in the description below based on the explanation of present invention discussed.
  • the present invention provides a device of the type mentioned at the beginning, which overcomes the disadvantages of the prior art that are robust, reliable and is low-maintenance and allows a production speed that far exceeds that of today known systems goes beyond.
  • the at least one cam is on a driven chain or belt mounted around wheels or Pulleys revolving, the first through the wheels, the bag body approximate circulation section, a second, leading away from the bag body Revolving section and a third revolving section which is a cam return section forms, are defined.
  • a fourth circulation section can be provided, which is essentially one has a constant distance from the bag body end to be opened.
  • One in the first Circulating section moving cam moves the slide assigned to it in the open end of the corresponding sack body while the cam when in reaches the second circulation section, pulls the slide back again.
  • the fourth Revolving section serves to slide the slider for a predetermined time To keep the bag body in a rest position, meanwhile on the bag body Process steps can be carried out.
  • An advantageous embodiment of the invention is characterized in that everyone Slider has a guideway for sliding engagement with cams.
  • the guideway each slide for sliding engagement with the cams can conveniently one on the slide be fixed U-profile with open ends, the longitudinal axis of which is at right angles to Direction of the reciprocating movement of the slide is arranged.
  • the slides can be fixed to a processing station, they come all advantages of the invention only come into their own when the slider itself Move in line with the bag bodies to be opened. It is therefore in one preferred embodiment further a conveyor for transporting the Bag body and a drive device for moving the slide along a Orbit provided, the drive of the conveyor and the Drive device for moving the slide along the orbit with each other are synchronized so that the transport speed (arrow A) in operation Sack body on the conveyor essentially equal to the speed (arrow C) of the slider along the orbit.
  • the speed of the chain or belt with the cam is set so that it is higher than that of the slide around the orbit.
  • the drive device for moving the slide along the Orbit a chain around gears or one around pulleys circumferential belt, the chain or belt connected to the slider and at least one of the gears or pulleys from an engine is driven.
  • the orbit for the slide can be defined by a rail on which respective sliders are slidably mounted. It advantageously comprises a device for slidable mounting of the slide on the rail a socket and one in it slidable shaft, either the bushing or the shaft by means of rollers or Sliding surfaces engage in the rail and the shaft or the bush with the slide connected is.
  • each slider has a crossbar and at least two on it attached, preferably adjustable at a distance from each other and in length Includes slide finger. Depending on the desired sack bottom dimensions, these are Distance to each other (which defines the long edge of the floor) and in it Length set (which together with the slide stroke the width edge of the Soil is defined). An exchange of the slide when changing the Sack body size is therefore unnecessary.
  • the slide and the bag body are in one level. This leads to the opening of the bag body by the slide undesirable effect that up to four in the folded state of the bag body Material layers lie on top of each other, but only one layer in other areas is available. This difference in thickness creates the further processing of Bag body considerable problems.
  • the bag body in transverse folding are arranged on the sack body conveyor, which is different from the Transverse folding line in the direction of the slider extending bag body section in the is essentially in the plane of the reciprocating movement of the slide, and the bag body section extending from the transverse folding line away from the slide in one Plane, which is an angle, preferably an approximately right angle, with the plane includes the reciprocation of the slider.
  • Fig.1 shows an embodiment of the device according to the invention for opening tubular bag bodies schematically in side view
  • Fig.2 the same
  • the device shows schematically in plan view, the conveyor belt in the latter figure the bag bodies is not shown.
  • a device for opening tubular bag bodies has a conveyor belt 1, on its top by a suitable means such as e.g. Vacuum, hose body 2.2a are recorded.
  • the conveyor belt moves continuously and with constant speed in the direction of arrow A.
  • the bag bodies lie with Except for one end area, which is to be formed into the sack bottom, horizontally on the conveyor belt, with their longitudinal axes pointing transversely to the direction of transport A.
  • the said end region of each bag body 2, 2a is over a longitudinal edge 1 of the Conveyor belt 1 is bent vertically downwards and hangs over one of six, generally designated 3 sliders. (In Fig. Are for the sake of better Clarity shown only two sliders.)
  • the slider 3 are slidably attached to a rail 4, the two each other has opposite straight sections 4a, 4b, which at their ends by two semicircular sections 4c, 4d are interconnected.
  • the sliding attachment each slide 3 on the rail 4 is carried out by means of four rollers 31, each of which two engage in one of two opposite longitudinal edges of the rail 4.
  • the Rollers 31 are rotatably attached to the end face of a slide head 33, of which opposite end of a shaft 34 extends downward.
  • a socket 35 is slidably mounted.
  • This bushing 35 carries a guideway in Form of a horizontal U-profile 38 with open ends and a crossbar 39, of the sliding finger 36.37 in the form of elongated, narrow plates at a distance extend perpendicular to each other upwards.
  • the slide fingers can on the crossbar 39 be adjustably attached.
  • the U-profile 38 and the crossbar 39 can also be a form a one-piece unit.
  • a separate drive is provided.
  • This consists of a chain 8 rotating around four wheels 10, 11, 12, 13 with horizontal axes of rotation. At least one of the four wheels is driven, so that the chain 8 in the direction of the arrow B is moved at a speed greater than that of the conveyor belt 1 and the chain 7.
  • the four wheels 10, 11, 12, 13 and thus the chain 8 are in one Vertical plane approximately below the longitudinal edge 1a of the conveyor belt.
  • the wheels 10, 11, 12, 13 divide the revolving chain 8 into a first, obliquely upwards inclined section 8a, a second, inclined downward second section 8b, one running parallel to the longitudinal edge 1a of the conveyor belt 1, but from it facing away, third section 8c, and finally a fourth section 8d, the runs parallel to the third section and adjacent to the conveyor belt 1.
  • the chain 8 has three cams 9 at regular intervals.
  • the conveyor belt 1 and the chains 7 and 8 are set in motion. It bag bodies are fed at predetermined intervals on the conveyor belt, and in Coordination with this, the sliders 3 move horizontally around the rail 4. Reached now a first slider a position near the wheel 13, a cam 9 engages the Chain 8 in the front open end of the U-profile 38 of the slider. This happens, although the absolute speed of the chain 8 is greater than that of the chain 7, the to the chain 7 parallel speed component of the chain 8 in the inclined circulation section 8a is smaller than the absolute speed of the chain 7.
  • the cam 9 Before the cam 9 can exit the U-profile 38 at the rear end, it has Wheel 10 reaches and begins to move along section 8d.
  • the Slide fingers 36,37 have now reached their highest position and maintain it, as long as the cam 9 is in section 8d.
  • the bag body end has one hexagonal folding configuration assumed, as shown on bag body 2a. In In this condition, if necessary, a valve sheet can be glued or welded on become.
  • the cam is again on the section 8d parallel to the conveyor belt faster than the orbital movement of the slide and therefore moves in the U-profile 38 back to the front.
  • the cam reaches 9 before they can emerge from the U-profile of the slide at the front end, the wheel 11 and goes downwards in the direction specified by section 8b of the chain 8, i.e. path from the bag body transport device, directional movement over and pulling also the slide down, whose slide finger eventually disengages from the Sack body.
  • the cam 9 leaves at the turn of the chain 8 on the wheel 12 finally the U-profile 38 through its rear open end and moves along of section 8c back to wheel 13, in order to engage another slide 3 there to get.
  • the first slider 3 moves after being disengaged from the cam 9 has come straight ahead, then to the rail section 4c turn.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Auxiliary Apparatuses For Manual Packaging Operations (AREA)
EP99948588A 1998-10-05 1999-10-04 Vorrichtung zum öffnen von schlauchförmigen sackkörpern Expired - Lifetime EP1035967B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT165798 1998-10-05
AT0165798A AT406755B (de) 1998-10-05 1998-10-05 Vorrichtung zum öffnen von schlauchförmigen sackkörpern
PCT/AT1999/000235 WO2000020195A1 (de) 1998-10-05 1999-10-04 Vorrichtung zum öffnen von schlauchförmigen sackkörpern

Publications (2)

Publication Number Publication Date
EP1035967A1 EP1035967A1 (de) 2000-09-20
EP1035967B1 true EP1035967B1 (de) 2002-08-14

Family

ID=3518160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99948588A Expired - Lifetime EP1035967B1 (de) 1998-10-05 1999-10-04 Vorrichtung zum öffnen von schlauchförmigen sackkörpern

Country Status (14)

Country Link
EP (1) EP1035967B1 (bg)
JP (1) JP3753941B2 (bg)
KR (1) KR100461214B1 (bg)
AT (1) AT406755B (bg)
AU (1) AU6181199A (bg)
BG (1) BG63529B1 (bg)
BR (1) BR9906847A (bg)
CA (1) CA2313072C (bg)
CZ (1) CZ294286B6 (bg)
DE (1) DE59902331D1 (bg)
ID (1) ID26825A (bg)
PT (1) PT1035967E (bg)
TR (1) TR200001537T1 (bg)
WO (1) WO2000020195A1 (bg)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008063949A1 (de) * 2008-08-05 2010-02-11 Windmöller & Hölscher Kg Mitlaufender Schieber
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
AT515831B1 (de) 2014-05-20 2016-07-15 Lohia Corp Ltd Vorrichtung und Verfahren zum Ausbilden einer Bodenöffnung
AT515832B1 (de) 2014-05-20 2016-05-15 Lohia Corp Ltd Vorrichtung und Verfahren zum Ausbilden einer Bodenöffnung zwischen Sackabschnitten
CN112157956B (zh) * 2020-09-28 2024-09-13 深圳永创智能设备有限公司 一种用于包装的扩袋装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1511021A1 (de) * 1966-02-09 1969-12-11 Windmoeller & Hoelscher Verfahren und Vorrichtung zum Herstellen von Kreuzboden aecken aus Kunststoffolie
SE8301122D0 (sv) * 1983-03-01 1983-03-01 Tetra Pak Int Anordning for transport och resning av forpackningsbehallaremnen

Also Published As

Publication number Publication date
CA2313072C (en) 2006-12-12
DE59902331D1 (de) 2002-09-19
AT406755B (de) 2000-08-25
TR200001537T1 (tr) 2000-11-21
ATA165798A (de) 2000-01-15
JP2002526285A (ja) 2002-08-20
WO2000020195A1 (de) 2000-04-13
BG104454A (bg) 2000-12-29
BR9906847A (pt) 2000-10-10
CA2313072A1 (en) 2000-04-13
JP3753941B2 (ja) 2006-03-08
CZ20001813A3 (cs) 2000-09-13
AU6181199A (en) 2000-04-26
BG63529B1 (bg) 2002-04-30
KR100461214B1 (ko) 2004-12-14
CZ294286B6 (cs) 2004-11-10
KR20010032340A (ko) 2001-04-16
EP1035967A1 (de) 2000-09-20
ID26825A (id) 2001-02-15
PT1035967E (pt) 2002-12-31

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