EP0584885B1 - Zuschnittfördervorrichtung - Google Patents

Zuschnittfördervorrichtung Download PDF

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Publication number
EP0584885B1
EP0584885B1 EP93202503A EP93202503A EP0584885B1 EP 0584885 B1 EP0584885 B1 EP 0584885B1 EP 93202503 A EP93202503 A EP 93202503A EP 93202503 A EP93202503 A EP 93202503A EP 0584885 B1 EP0584885 B1 EP 0584885B1
Authority
EP
European Patent Office
Prior art keywords
blanks
blank
pressure
blank feeder
magazine
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
EP93202503A
Other languages
English (en)
French (fr)
Other versions
EP0584885A1 (de
Inventor
Michio C/O Shikoku Kakoki Co. Ltd. Ueda
Takeshi C/O Shikoku Kakoki Co. Ltd. Iseki
Kazuo C/O Shikoku Kakoki Co. Ltd. Abe
Shoji C/O Shikoku Kakoki Co. Ltd. Hirose
Shoji C/O Shikoku Kakoki Co. Ltd. Nishioka
Yasuji C/O Shikoku Kakoki Co. Ltd. Fujikawa
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.)
Shikoku Kakoki Co Ltd
Original Assignee
Shikoku Kakoki Co Ltd
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 Shikoku Kakoki Co Ltd filed Critical Shikoku Kakoki Co Ltd
Publication of EP0584885A1 publication Critical patent/EP0584885A1/de
Application granted granted Critical
Publication of EP0584885B1 publication Critical patent/EP0584885B1/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
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
    • B65B43/12—Feeding flexible bags or carton blanks in flat or collapsed state; Feeding flat bags connected to form a series or chain
    • B65B43/14—Feeding individual bags or carton blanks from piles or magazines
    • B65B43/16—Feeding individual bags or carton blanks from piles or magazines by grippers
    • B65B43/18—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers
    • B65B43/185—Feeding individual bags or carton blanks from piles or magazines by grippers by suction-operated grippers specially adapted for carton blanks

Definitions

  • the present invention relates to a feeder for supplying a container forming device with blanks for containers to be filled, for example, with milk, i.e., blanks which are folded flat so as to be unfoldable into tubes of square to rectangular cross section.
  • Such feeders comprise a magazine having an outlet at an inner end thereof for accommodating a multiplicity of blanks as closely arranged side by side from the inner end toward an outer end of the magazine and folded flat so as to be unfoldable into tubes of square cross section, pressure means for inwardly pressing the blank at the outermost position so as to move the blanks within the magazine toward the outlet, and means for guiding the blanks with their bottoms resting thereon while the blanks are moved toward the outlet, the guiding means comprising rails extending longitudinally of the magazine.
  • An object of the present invention is to provide a blank feeder wherein blanks are smoothly movable within a magazine toward the outlet thereof.
  • the invention provides a blank feeder which comprises a magazine having an outlet at an inner end thereof for accommodating a multiplicity of blanks according the precharacterizing part of claim 1 and characterized in that the guide means comprises inner and outer pulleys arranged spaced apart by a predetermined distance, and an endless belt reeved around the inner and outer pulleys, the inner and outer pulleys being each freely rotatable and the belt moving with the rotation of the both pulleys according to the movement of the blank due to a pressure of driven pressure means.
  • the belt moves in revolution with the movement of blanks, so that the frictional resistance involved in the movement is small, permitting the blanks to smoothly move within the magazine toward its outlet.
  • FIG. 1 shows a blank feeder which comprises a magazine 13 disposed obliquely above and outwardly of a phantom outward extension of a bottom forming mandrel 11 which is brought to a halt at a feed station and which obliquely extends outwardly downward.
  • the magazine 13 has an inward outlet 12 at an inner end thereof and adapted to accommodate a multiplicity of flat blanks B which are closely arranged side by side from the inner end toward an outer end of the magazine 13.
  • the feeder further comprises a transport arm 15 having vacuum cups 14 for taking out blanks B from the magazine 13 one by one and transporting each blank B onto the outward extension, guide rails 16 for guiding the blank B while it is transported by the arm 15 so as to unfold the blank B from the flat form into a tube of square to rectangular cross section, a holder 17 for holding the blank B as unfolded to the tubular form and positioned on the extension, and a loader 18 for fitting the blank B held by the holder 17 around the mandrel 11.
  • a transport arm 15 having vacuum cups 14 for taking out blanks B from the magazine 13 one by one and transporting each blank B onto the outward extension
  • guide rails 16 for guiding the blank B while it is transported by the arm 15 so as to unfold the blank B from the flat form into a tube of square to rectangular cross section
  • a holder 17 for holding the blank B as unfolded to the tubular form and positioned on the extension
  • a loader 18 for fitting the blank B held by the holder 17 around the mandre
  • the magazine 13 comprises inner and outer support frames 21, 22 spaced apart by a predetermined distance and each inverted L-shaped in cross section, a gate member 23 provided upright on the inner support frame 21 and surrounding the outlet 12 along with the inner support frame 21, a pair of opening claws 24 attached to the respective vertical bars of the gate member 23, a pair of horizontal support bars 25 parallel to and spaced apart from each other and interconnecting the support frames 21, 22 as attached to the top side of these frames, and L-shaped side guide bars 26, 27 each extending between and attached to the outer support frame 22 and an intermediate portion (with respect to the height) of the vertical bar of the gate member 23.
  • a pair of horizontal guide rods 31 extend between and are attached to the inner and outer support frames 21, 22 at the middle of height of these frames.
  • a slider 32 is supported by the guide rods 31.
  • a rod-less cylinder 33 has a main body 34 fixed to the slider, and a cylinder tube 35 positioned between the two guide rods 31 and extending between and attached to the support frames 21, 22.
  • a pair of brackets 36 extend upright from opposite ends of the slider 32.
  • a pair of pressure pawls 37 are pivoted to each bracket 36. The pawls 37 are each biased inward by an unillustrated spring.
  • An inner pulley 41 is mounted directly on the support bars 25 and positioned close to the inner ends thereof.
  • An outer pulley 42 is attached by take-ups 43 to the support bars 25 close to their outer ends.
  • An endless belt 44 is reeved around the inner and outer pulleys 41, 42. With reference to FIGS. 5 and 6, the portion of the belt 44 along the upper path of travel is supported by a slip plate 45. In this state, the belt 44 is positioned as projected upward beyond the support bars 25 by an amount corresponding to the thickness of the belt 44.
  • an air source 51 supplies air to the rodless cylinder 33 through a pilot-operated solenoid control valve 52.
  • Pilot pressure setting valves 53, 54 for low pressure and high pressure, respectively, alternatively apply a pilot pressure to the control valve 52 upon a change-over in accordance with a signal from an encoder 55.
  • the encoder 55 detects the angle of rotation of a main shaft (not shown) for driving the transport arm 15 and outputs a signal corresponding to the detected angle.
  • the transport arm 15 performs one cycle of operation.
  • the loader 18 feeds a blank B to the mandrel 11, whereupon the transport arm 15 moves upward, attracting the innermost blank B in the outlet 12 by suction, and stops.
  • the arm 15 then moves down, taking out the blank B as attracted to the arm 15 from the magazine 13 while unfolding the blank B into a tube of square or rectangular cross section.
  • the blank B taken out is transported to the location of the holder 17, whereupon the transport arm 15 is stopped.
  • the arm 15 is thereafter allowed to stand by in the stopped position before initiating an upward movement in the next cycle.
  • air of low pressure is supplied to the rodless cylinder 33 during the period after the start of upward movement of the transport arm 15 and before the arm 15 reaches an intermediate point of the path of its downward movement with the attracted blank B.
  • Air of high pressure is supplied to the rodless cylinder 33 only during the following period some time before the standby period in the stopped position is elapsed.
  • the high-pressure air is thereafter changed over to the low-pressure air again.
  • the low pressure is 1.5 to 2.5 kg/cm 2
  • the high pressure is 3 to 5 kg/cm 2 .
  • the blanks B accommodated in the magazine 13 are subjected to the pressure of the pressure pawls 37. This pressure is changed over from high to low and vice versa by supplying air of alternating low pressure and high pressure to the rodless cylinder 33. This permits the blanks B to move smoothly within the magazine 13 as the quantity of blanks B successively decreases with the withdrawal of blanks.
  • the blanks B within the magazine 13 move as supported by the belt 44, which also moves in revolution with the movement Of the blanks B. Accordingly, the blanks B are movable free of any resistance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)

Claims (7)

  1. Eine Zuschnittfördervorrichtung mit:
    einem Magazin (13), das einen Auslaß (12) an einem inneren Ende von sich hat, um eine Vielzahl von Zuschnitten (B) eng Seite an Seite von dem inneren Ende in Richtung eines äußeren Endes des Magazins (13) angeordnet aufzunehmen, wobei die Zuschnitte (B) flach gefaltet sind, so daß sie zu Rohren von quadratischem bis rechteckigem Querschnitt aufgeklappt werden können,
    einem Druckmittel, um den Zuschnitt (B) an der äußersten Position nach innen zu drücken, um die Zuschnitte (B) innerhalb des Magazins (13) in Richtung des Auslasses (12) zu bewegen, und
    einem Führungsmittel, um die Zuschnitte (B) mit ihren Böden darauf liegend zu führen, während die Zuschnitte in Richtung des Auslasses (12) bewegt werden,
    wobei die Zuschnittfördervorrichtung dadurch gekennzeichnet ist, daß das Führungsmittel innere und äußere Riemenscheiben (41, 42), die um eine vorgegebene Strecke voneinander beabstandet angeordnet sind, und ein Endlosband (44), das um die inneren und äußeren Riemenscheiben (41, 42) gewunden ist, aufweist, wobei die inneren und äußeren Riemenscheiben (41, 42) jeweils frei drehbar sind und sich das Band (44) mit der Drehung der beiden Riemenscheiben (41, 42) entsprechend der Bewegung des Zuschnitts (B) aufgrund eines Drucks des angetriebenen Druckmittels (36) bewegt.
  2. Eine Zuschnittfördervorrichtung wie in Anspruch 1 definiert, worin ein Paar von parallelen Tragbalken (25) an gegenüberliegenden Seiten des Endlosbandes (44) angeordnet sind und die inneren und äußeren Riemenscheiben (41, 42) an sich montiert haben, und das Endlosband (44) entlang des oberen Pfades seiner Bewegung eine Oberseite hat, die auf einem höheren Niveau als die Oberseiten der Tragbalken (25) positioniert sind.
  3. Eine Zuschnittfördervorrichtung wie in Anspruch 2 definiert, worin der Höhenunterschied zwischen der Oberseite des Endlosbandes (44) entlang des oberen Pfades und den Oberseiten der Tragbalken (25) der Dicke des Bandes entspricht.
  4. Eine Zuschnittfördervorrichtung wie in irgendeinem der Ansprüche 1 bis 3 definiert, worin das Endlosband (44) einen Abschnitt hat, der entlang des oberen Pfades seiner Bewegung positioniert ist und durch eine Gleitplatte gestützt ist.
  5. Eine Zuschnittfördervorrichtung wie in einem der Ansprüche 2 bis 4 definiert, worin ein Riemenspanner (43) zwischen der äußeren Riemenscheibe (42) und jeder der Tragstangen (25) angeordnet ist.
  6. Eine Zuschnittfördervorrichtung wie in irgendeinem der Ansprüche 1 bis 5 definiert, worin das Druckmittel nach innen und nach außen bewegbare Druckelemente (37) und einen Fluiddruckzylinder (33), um die Druckelemente (37) nach innen zu drücken, hat.
  7. Eine Zuschnittfördervorrichtung wie in Anspruch 6 definiert, die ein Drucksteuerventil (52) aufweist, um den Luftdruck, der dem Fluiddruckzylinder (33) zugeführt wird, von hoch nach niedrig und umgekehrt umzuschalten.
EP93202503A 1992-08-28 1993-08-26 Zuschnittfördervorrichtung Expired - Lifetime EP0584885B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1992060807U JP2569048Y2 (ja) 1992-08-28 1992-08-28 ブランク供給装置
JP60807/92U 1992-08-28

Publications (2)

Publication Number Publication Date
EP0584885A1 EP0584885A1 (de) 1994-03-02
EP0584885B1 true EP0584885B1 (de) 1997-04-16

Family

ID=13152990

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93202503A Expired - Lifetime EP0584885B1 (de) 1992-08-28 1993-08-26 Zuschnittfördervorrichtung

Country Status (4)

Country Link
EP (1) EP0584885B1 (de)
JP (1) JP2569048Y2 (de)
DE (1) DE69309812T2 (de)
DK (1) DK0584885T3 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5720156A (en) * 1995-08-25 1998-02-24 Roberts Systems, Inc. Case packing apparatus and method
EP0924135A1 (de) * 1997-12-16 1999-06-23 Involvo Ag Einrichtung zum Beschicken einer Verpackungsmaschine
WO2004080812A1 (ja) * 2003-03-11 2004-09-23 Shikoku Kakoki Co., Ltd. 可動式ブランク供給装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2500780C3 (de) * 1974-01-16 1980-06-26 Lafarge S.A., Paris Vorrichtung zum Abwinkein des Kopfstückes eines Ventilsackes und zum Aufstecken auf eine Abfüllmaschine
JPS5940681B2 (ja) * 1975-12-24 1984-10-02 大日本印刷株式会社 ホウソウブクロノオリマゲ ジユウテン ミツプウヘイソクソウチ
JPS5440791A (en) * 1977-09-05 1979-03-30 Toshiba Corp Automatic encasing apparatus
DE3429761A1 (de) * 1984-08-13 1986-02-27 Focke & Co (GmbH & Co), 2810 Verden Vorrichtung zum aufrichten von faltkartons
IT1235919B (it) * 1989-11-07 1992-12-02 Cestind Centro Studi Ind Apparecchiatura per alimentare singoli sbozzati ammassati appoggiati di costa in un magazzino ad elevata capacita' particolarmente per macchine confezionatrici di prodotti in generale in astucci del tipo a coperchio incerneriato a sigillo di garanzia
JPH0526806U (ja) * 1990-12-25 1993-04-06 四国化工機株式会社 ブランク供給装置

Also Published As

Publication number Publication date
EP0584885A1 (de) 1994-03-02
DE69309812T2 (de) 1997-08-21
DE69309812D1 (de) 1997-05-22
JP2569048Y2 (ja) 1998-04-22
JPH0623740U (ja) 1994-03-29
DK0584885T3 (da) 1997-07-07

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