EP1035966B1 - Vorrichtung zur trennung übereinanderliegender materialbahnen - Google Patents

Vorrichtung zur trennung übereinanderliegender materialbahnen Download PDF

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Publication number
EP1035966B1
EP1035966B1 EP99947079A EP99947079A EP1035966B1 EP 1035966 B1 EP1035966 B1 EP 1035966B1 EP 99947079 A EP99947079 A EP 99947079A EP 99947079 A EP99947079 A EP 99947079A EP 1035966 B1 EP1035966 B1 EP 1035966B1
Authority
EP
European Patent Office
Prior art keywords
crank
cranks
engagement element
suction
belt
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
EP99947079A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1035966A1 (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 EP1035966A1 publication Critical patent/EP1035966A1/de
Application granted granted Critical
Publication of EP1035966B1 publication Critical patent/EP1035966B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H41/00—Machines for separating superposed 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
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/74—Auxiliary operations
    • B31B50/76—Opening and distending flattened articles
    • B31B50/80—Pneumatically

Definitions

  • the invention relates to a device for separating two material webs lying one above the other, in particular those of sack bodies, or individual areas thereof, while they are being transported on a conveying device, the first of the material webs being releasably fixed to the conveying device, in accordance with the preamble of Claim 1.
  • the pre-cut, tubular bag body in one Fold the end to form a bottom.
  • slide a slider into an open one End inserted between the walls of the flat-lying sack body the Movement of the slide, possibly in cooperation with outside the Sack body beams, the desired folding of the side walls of the Bag body causes. Since the sack body lies flat on top of one another Sliders are transported there, one is faced with the problem that the edges the open ends of the bag body or even entire edge areas thereof stick to each other and therefore not the slider between the sack body walls can be introduced.
  • This effect can be caused by electrostatic charging Material webs, due to the presence of adhesive residues, in plastic materials by welding the edges of the sack body together in the course of the previous one Cutting the bag body with a hot wire, or with airtight materials generally occur due to the material lying flat against one another.
  • a Production step must be provided through which the end regions of the Material webs are separated from each other, after which the slide between the To be able to introduce material webs.
  • it is desirable to do this Carry out the separation process during the continuous transport of the bag body in order not to have to accept a limitation in production speed.
  • all moving device parts involved in the separation process should be shown in continuous motion, i.e. accelerations as low as possible and Experienced delays due to premature wear and high necessary Avoid driving energy. From the point of view of wear and energy consumption the device would be ideally rotating parts.
  • a device such as is known, for example, from DE-A-1 511 021.
  • This includes a suction bar rotating in the machine cycle, which is pivotally connected to levers by means of two bolts, which in turn are not rotatably connected to gearwheels by bolts located thereon.
  • Another rotatable gearwheel is in engagement with the gearwheels and transmits a driving force to the former gearwheels.
  • the suction bar thus moves parallel to the transport direction of hose sections.
  • it is proposed to drive the drive gear in turn via an elliptical gear mechanism, not shown.
  • Another drive device is neither disclosed nor suggested.
  • a disadvantage of the device disclosed in DE-A-1 511 021 is the use of a device Elliptical gear, which is expensive to manufacture on the one hand and none on the other complete linearization of the squeegee movement in unison with bag bodies transported past, but just a more or less good one Approach enables.
  • EP 0 770 476 a device for separating bag bodies during their transport on a conveyor device is known, as set forth by the features of the preamble of the present claim 1.
  • the device according to EP 0 770 476 is improved in that, instead of an elliptical gear, it has a drive device with an engaging element rotating along a predetermined path, which is connected to an engaging element formed on one of the cranks is, wherein the orbits of the engaging element of the drive device and the engaging element of the crank do not coincide and are not parallel, and the engaging elements mesh with one another in a displaceable manner with respect to one another.
  • the linearization of the squeegee movement in harmony with the sack bodies being transported past is considerably improved as a result, but is still not optimal.
  • the present invention offers a solution to the disadvantages of the prior art which enables a complete linearization of the suction beam movement in harmony with the bag bodies being transported past, with high economy.
  • the driving device with the engagement element provided thereon is formed according to the invention so that the engagement member is attached to a chain or a belt, or the circulating around at least two wheels, of which at least one is driven.
  • the chain or belt defines the orbit of the engagement element of the drive device.
  • the chain or belt preferably has a run parallel to the conveying direction of the material webs and the chain or belt speed is equal to the conveying speed of the material webs. As long as the engaging element moves in the parallel run, complete linearization of the speed component of the suction device parallel to the conveying direction of the material webs can thereby be achieved.
  • the engagement element advantageously has a channel which is normal to the chain or belt and into which a cam or roller engages as an engagement element of a crank.
  • the suction device executes a rotational movement in the course of which it approaches the second material web or touches and sucks it and then moves back again, the sucked second material web is pulled and thereby stands out from the first material web.
  • the rotational movement of the suction device is favorable in that it has both a speed component parallel to the conveying direction of the material webs in order to carry the suction device along with the movement of the material webs during the separation process, and also a speed component normal to the conveying device in order to pull the second material web away from the first.
  • cranks as crank disks or with Be crank arms.
  • a telescopic arm can also be used be provided, the articulated with the drive device and the crank connected is.
  • a preferred embodiment of the suction device comprises a bar an inner channel for connection to a vacuum source and a large number of Inner channel extending outlet openings, to the appropriate suction cups are connected.
  • FIG. 1 schematically showing a first embodiment of the device that is partially outside the scope of the invention in a side view
  • FIG. 2 showing the same device in a top view
  • 3 and 4 show details of this device
  • FIG. 5 is a diagram which shows the course of the parallel speed component of the rotating suction device of this device plotted against the crank angle
  • 6 shows an embodiment of the device according to the invention schematically in side view
  • FIG. 7 shows the same device in plan view.
  • 8 and 9 show details of this embodiment of the device according to the invention
  • FIG. 10 is a diagram which shows the course of the parallel speed component of the rotating suction device of the device according to the invention plotted against the crank angle.
  • FIG. 1 and FIG. 2 a conveyor device can be seen in FIG Form of a conveyor belt 1 that moves in the direction of arrow A.
  • tubular Bag body 2.2a lie with its longitudinal axis transverse to the conveying direction A on the Conveyor belt, the majority of the bag body horizontally on the Conveyor belt lies and only one end area, the material webs of which are separated from one another are to depend on the longitudinal edge of the conveyor belt 1 down.
  • the Conveyor also has a second conveyor belt 3, which is vertically below of the conveyor belt 1 is arranged in alignment with its longitudinal edge and with same speed as the conveyor belt 1 rotates around 4.5.
  • the conveyor belt 3 is designed as a perforated conveyor belt with a plurality of holes 3a, behind which a Vacuum bar 6 is arranged so that the conveyor belt 3 facing Material web of the bag body 2 over the length of the vacuum bar 6 against the Surface of the conveyor belt 3 is sucked in and during its continuous Transport is fixed to it.
  • a Vacuum bar 6 is arranged so that the conveyor belt 3 facing Material web of the bag body 2 over the length of the vacuum bar 6 against the Surface of the conveyor belt 3 is sucked in and during its continuous Transport is fixed to it.
  • an obliquely downward running guide rod 7 is provided, which the respective depending part of the Bag body 2a directs towards the conveyor belt 3.
  • a suction device in the design according to the invention arranged.
  • This suction device includes a parallel to the hanging part the bag body arranged bar 8, on which a number of suction cups 9 on the the side of the beam facing the bag body are attached.
  • the suction cups communicate with a vacuum channel 8a inside the beam 8, the Vacuum channel 8a is indirectly connected to a vacuum source, not shown.
  • the beam 8 is on the one hand via a swivel joint 10b with a crank arm 10 connected, which rotates about a pivot bearing 10a, and also via a pivot joint 13b connected to a crank disc 13 which rotates about a pivot bearing 13a.
  • a pulley 11 is rigid with the axis of the rotary bearing 10a Crank arm 10 connected.
  • Another pulley 14 is also coaxial and rigid connected to the crank disc 13.
  • the two pulleys 11 and 14 point the same diameter and are coupled to each other via a belt 15.
  • This belt transmission serves the two cranks 10, 13 synchronously with one another move and prevent accidental stoppage of the cranks on one Dead center is no longer the crank 13 which moves with the connection to the beam 8 can be set in motion by the driven crank 10.
  • cranks 10, 13 with the bar 8 meet the following dimensioning requirements: the swivel joints 10a, 13a about which the crank arm 10 or the crank disk 13 rotate, have the same distance from each other as the pivot joints 10b, 13b when they are with the bar 8 are connected; the distance between the pivots 10a, 10b of the Crank arm is equal to the distance between the pivots 13a, 13b Crank disk 13.
  • the four pivot joints mentioned form the corner points of one Parallelogram.
  • This parallelogram arrangement of the cranks with the bar 8 causes the bar to be caused by a crank drive Rotational movement always maintains a position parallel to the material web, the Distance of the arrangement to the material web is set so that the suction cups 9 at their closest approach to the material web touch them.
  • FIG. 4 which is an enlarged detail from FIG represents the circular speed of the swivel joint 10b as a vector v, which is divided into a speed component vp which is parallel to the direction of conveyance of the Material webs, and a speed component vn, which is normal to the The conveying direction of the material webs can be disassembled.
  • These speed vectors also apply to bar 8.
  • Both speed components vp, vn would be at uniform circular velocity, i.e. with uniform rotation of the crank 10 ⁇ m change the pivot bearing 10a, sinusoidally. However, this is undesirable, as a preliminary has already been established.
  • the underside has the toothed disc 16 two approximately radially and parallel to each other arranged guide plates 16b, 16b, which define a channel therebetween engages with a cam or roller 10d.
  • the roll 10d is one at the end Extension 10c of the crank arm 10 is arranged, the extension 10c the extension represents the crank arm 10 beyond the pivot bearing 10a.
  • the Crank 10 does not move uniformly with uniform rotation of toothed disk 16, but depending on the eccentricity e and the distance b (see Fig.4) from Roller 10d to pivot bearing 10a accelerated and decelerated, roller 10d in the channel slides between the guide plates 16b, 16b to move the point of engagement balance between roller and guide plates.
  • 29 denotes a support plate of the machine body on which the Drehgeienk 10a is mounted.
  • the suction cups 9 on the bar 8 could be permanently connected to a vacuum source. However, it is considered more convenient if the vacuum source approaches the Suction cups on the material web relatively shortly before the suction cups touch the Material web is switched through to suck the material web onto the suction cups, and stays on while the suction cups move past the point Remove as close as possible from the conveyor of the material webs while doing so pull the web of material they sucked in while simultaneously pulling the other Material web of the bag body is sucked on the conveyor belt 3. The vacuum source will finally switched off again when the distance between the two Material webs is considered sufficient.
  • the crank disc 13 at its junction with the swivel 13b has an axially parallel through hole 13e, which is also in the swivel joint 13b continues, the vacuum channel 8a of the beam 8 with this through hole communicated.
  • a vacuum bar 20 which is fixedly mounted, wherein the vacuum bar has a circular arc shape facing the surface of the pane Muzzle opening 20a, which coincides with the circular path, which when rotating the disc 13 from the mouth of the through hole (13e) is described.
  • the Mouth opening 20a communicates with a connecting piece 20b to which one does not shown vacuum source can be connected.
  • the vacuum channel 8a of the beam 8 only over a precisely defined angular range Crank disc rotation connected to the vacuum source.
  • FIGS. 6 to 9 show an embodiment of the invention Device shown. This only differs from the first embodiment by another drive device with which the crank 30 (corresponds to crank 10 of the first embodiment) is driven. Therefore, regarding the same Components of the device use the same reference numerals and it is referred to the above Described description and omitted another detailed explanation.
  • the drive device of the second embodiment is no longer an eccentric disc, but comprises two double gears 31, 33, over which a double chain 32 rotates.
  • the axis of rotation of the double gear 33 is rigid with a further gear 34 connected, via a chain 35 from the pinion of a motor, not shown is driven.
  • an engagement element 36 is running attached, which consists of a U-profile, the longitudinal axis of which is normal to the double chain 32 stands.
  • the legs of the U-profile define a channel in which a roller 30d is attached as an engagement element at the end of the crank 30, in a slidable manner is included.
  • the orbit of the roller 30d when the crank 30 rotates is 30a designated.
  • the double chain 32 forms between the double toothed wheels 31, 33 a strand parallel to the conveying direction of the material webs on both sides, whereby the double chain is driven at such a speed that in one parallel run the engagement element 36 moves at the same speed as the material webs on the conveyor belt 1.
  • the engagement element 36 is the beginning of the first parallel Double chain center reached when the crank angle ⁇ is approximately 45 °.
  • the engaging element has half encircled the double gear 33.
  • the crank 30, the roller 30d is engaged with the Engagement element 36 is located with a parallel to the material web conveying direction Speed component vp driven, which corresponds exactly to the conveying speed.
  • This parallel speed component is maintained until the Engaging element reaches the double gear 31, i.e. the end of this parallel Double chain center reached.
  • the crank 30 has about one at this time Kurpel angle of 135 °. From this point in time, the engagement element 36 starts from one Translational movement into a rotational movement about the double pinion 31, which changes the size and ultimately the sign of the parallel Speed portion of the crank 30 changes to which the changed movement of the Engagement elements is transferred.

Landscapes

  • Delivering By Means Of Belts And Rollers (AREA)
  • Making Paper Articles (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Replacement Of Web Rolls (AREA)
  • Specific Conveyance Elements (AREA)
EP99947079A 1998-10-05 1999-10-04 Vorrichtung zur trennung übereinanderliegender materialbahnen Expired - Lifetime EP1035966B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT0165898A AT407236B (de) 1998-10-05 1998-10-05 Vorrichtung zur trennung übereinanderliegender materialbahnen
AT165898 1998-10-05
PCT/AT1999/000236 WO2000020193A1 (de) 1998-10-05 1999-10-04 Vorrichtung zur trennung übereinanderliegender materialbahnen

Publications (2)

Publication Number Publication Date
EP1035966A1 EP1035966A1 (de) 2000-09-20
EP1035966B1 true EP1035966B1 (de) 2003-02-05

Family

ID=3518189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99947079A Expired - Lifetime EP1035966B1 (de) 1998-10-05 1999-10-04 Vorrichtung zur trennung übereinanderliegender materialbahnen

Country Status (14)

Country Link
US (1) US6517472B1 (bg)
EP (1) EP1035966B1 (bg)
JP (1) JP3753940B2 (bg)
KR (1) KR100464689B1 (bg)
AT (1) AT407236B (bg)
AU (1) AU6067299A (bg)
BG (1) BG64342B1 (bg)
BR (1) BR9906848A (bg)
CA (1) CA2313071A1 (bg)
DE (1) DE59904221D1 (bg)
ID (1) ID25497A (bg)
PT (1) PT1035966E (bg)
TR (1) TR200001565T1 (bg)
WO (1) WO2000020193A1 (bg)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006006601A1 (de) * 2006-02-10 2007-08-16 Edmund Mundorf Vorrichtung zum Bearbeiten einer Materialbahn
EP2441574B1 (de) 2010-10-14 2013-05-15 Starlinger & Co Gesellschaft m.b.H. Verfahren und Vorrichtung zum Ausbilden von offenen Böden an Endbereichen von schlauchförmigen Sackkörpern
CN104354927B (zh) * 2014-10-24 2016-08-24 青岛晨峰智能装备有限公司 连续摆臂式吸盘开口机构及包装袋生产线

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2224646A (en) * 1937-04-22 1940-12-10 William F Friedman Electric control system for tabulating cards, documents, and the like
DE1511021A1 (de) * 1966-02-09 1969-12-11 Windmoeller & Hoelscher Verfahren und Vorrichtung zum Herstellen von Kreuzboden aecken aus Kunststoffolie
US3446121A (en) * 1966-05-18 1969-05-27 Windmoeller & Hoelscher Apparatus for pulling open the ends of tube sections of plastic material sheeting
US3975888A (en) * 1972-04-26 1976-08-24 R. A. Jones & Company, Inc. Method and apparatus for forming, filling and sealing packages
US3913463A (en) * 1972-06-29 1975-10-21 Int Paper Co Apparatus for opening tubes of flexible material
BR8208051A (pt) * 1982-01-20 1983-12-27 Windmoeller & Hoelscher Corp Aparelho para separar as extremidades de sacos durante a fabricacao
DE8234461U1 (de) * 1982-12-08 1983-06-16 Gartemann & Hollmann Gmbh, 4800 Bielefeld Vorrichtung zum oeffnen eines endes eines kontinuierlich quergefoerderten sackschlauchabschnittes
DE4218810C2 (de) * 1992-06-06 1996-02-15 Rovema Gmbh Schlauchbeutelmaschine zum kontinuierlichen Herstellung von mit Seitenfalten vesehenen Packungen
DE19549618C2 (de) * 1995-10-27 2001-09-06 Windmoeller & Hoelscher Saugersteuerung II

Also Published As

Publication number Publication date
AT407236B (de) 2001-01-25
AU6067299A (en) 2000-04-26
KR20010032741A (ko) 2001-04-25
PT1035966E (pt) 2003-06-30
CA2313071A1 (en) 2000-04-13
US6517472B1 (en) 2003-02-11
WO2000020193A1 (de) 2000-04-13
TR200001565T1 (tr) 2001-04-20
BG64342B1 (bg) 2004-10-29
BR9906848A (pt) 2000-10-10
DE59904221D1 (de) 2003-03-13
KR100464689B1 (ko) 2005-01-05
ATA165898A (de) 2000-06-15
ID25497A (id) 2000-10-05
BG104474A (bg) 2000-12-29
JP3753940B2 (ja) 2006-03-08
JP2002526284A (ja) 2002-08-20
EP1035966A1 (de) 2000-09-20

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