EP0297266A2 - Procédé et dispositif pour alimenter des ébauches d'emballage à un dispositif de pliage - Google Patents

Procédé et dispositif pour alimenter des ébauches d'emballage à un dispositif de pliage Download PDF

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Publication number
EP0297266A2
EP0297266A2 EP88107919A EP88107919A EP0297266A2 EP 0297266 A2 EP0297266 A2 EP 0297266A2 EP 88107919 A EP88107919 A EP 88107919A EP 88107919 A EP88107919 A EP 88107919A EP 0297266 A2 EP0297266 A2 EP 0297266A2
Authority
EP
European Patent Office
Prior art keywords
knife
material web
rollers
objects
blanks
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.)
Granted
Application number
EP88107919A
Other languages
German (de)
English (en)
Other versions
EP0297266A3 (en
EP0297266B1 (fr
Inventor
Heinz Focke
Jürgen Wach
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.)
Focke and Co GmbH and Co KG
Original Assignee
Focke and Co GmbH and Co 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 Focke and Co GmbH and Co KG filed Critical Focke and Co GmbH and Co KG
Publication of EP0297266A2 publication Critical patent/EP0297266A2/fr
Publication of EP0297266A3 publication Critical patent/EP0297266A3/de
Application granted granted Critical
Publication of EP0297266B1 publication Critical patent/EP0297266B1/fr
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
    • B65B57/00—Automatic control, checking, warning, or safety devices
    • B65B57/10—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
    • B65B57/12—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to control, or stop, the feed of wrapping materials, containers, or packages

Definitions

  • the invention relates to a method for feeding blanks from packaging material to a folding unit, in particular to a folding turret, for wrapping objects or groups of objects, the blanks being separated from a continuous web of material by knives of rotating knife rollers and the folding turret or one of these upstream transfer roller are fed. Furthermore, the invention relates to a device for producing and feeding blanks to a folding unit.
  • Blanks for wrapping objects are often cut off in packaging machines produced a material web and fed directly to a folding unit, in particular a folding turret. This applies above all to the processing of blanks from (plastic) foil material.
  • the blanks are usually separated from it by rotating knife rollers with separating knives and counter-knives with predominantly continuous conveying of the material web and fed to the circumferential surface of the folding turret in the region of a pocket for receiving the objects by likewise rotating conveying elements.
  • the objects to be wrapped are inserted into a pocket of the folding turret in the radial direction in an insertion station with partial covering by the blank.
  • the feeding of the objects to be wrapped on the one hand and the separation and feeding of the blanks on the other hand are coordinated.
  • the invention has for its object to avoid such disruptions by coordinated interruption of the supply of blanks to the folding turret or the like with a temporary interruption of the supply of objects to be wrapped.
  • the method according to the invention is characterized in that the feeding of the blanks to the folding turret is controlled as a function of the feeding of objects to be packaged, such that the transfer of blanks to the folding turret is interrupted for as long as the supply of objects is interrupted until objects are fed back into the folding turret.
  • the conveyance of objects to be wrapped to the fold Revolver is monitored in the invention, for example by an opto-electrical monitoring device. If the conveyance is interrupted, a corresponding signal is forwarded to units for conveying the material web, for separating and transporting the blanks, so that they do not cut any further blanks or convey them to the folding turret.
  • the drive of rotating conveying elements for the blanks and for the material web is maintained, including the rotational movement of the knife rollers, but the material web for producing the blanks is stopped in an area in front of the knife rollers, so that further blanks are no longer cut off.
  • a special feature is that the material web is conveyed by a trailing section beyond the action level of the knives (separating knife and counter knife) and then stopped.
  • the trailing section of the material web beyond the parting plane is shorter than the length of a blank and the movement of the objects to be encased, the conveying elements for the material web and the blanks, including the knife rollers, so that when the transport of the objects starts again and thus a cut is cut from the material web at a moment which is coordinated with the movement of the objects and the folding turret.
  • the synchronous operation between the blank and the object to be wrapped is restored immediately and without loss of a blank or without a missing wrapping.
  • the knives of the knife rollers are brought into an ineffective position during the temporary stoppage of conveyance for the material web, so that despite the rotation of the knife rollers a separating cut is not carried out.
  • the device according to the invention for separating blanks from a web of material and feeding the same to the circumferential surface of a folding turret encompasses rotating conveying elements with the inclusion of rotating knife rollers, which is preceded by a pair of pull rollers for the transport of the material web, which can be switched off in a controlled manner if objects are not fed, and at the same time the knives of the knife rollers move out of the cutting position.
  • the separating knives which protrude over a circumferential surface of the knife rollers with a cutting edge, can be moved out of the cutting position by stationary, movable control members, in particular pivotable against spring loading.
  • the embodiment shown in the drawings is concerned with the packaging of stacks 10 of folded paper handkerchiefs in a blank 11 made of film material, for example PE film.
  • the objects to be wrapped that is to say stacks 10, are conveyed by a horizontal feed conveyor 12 fed to a folding turret 13 as a folding unit.
  • the feed conveyor 12 consists of a fixed bearing plate 14 for supporting the stack 10 and angular drivers 15, which are moved by chain drives 16 over the bearing plate 14.
  • the folding turret 13 is provided with a plurality of pockets 17 which are open on the radial outside, into each of which a stack 10, which is compressed to the dimensions of the pocket 17, is inserted in the radial direction, namely with the aid of a blank 11 which moves during the insertion movement U-shaped around the stack 10.
  • the feed conveyor 12 is located approximately in the horizontal central plane of the upright folding turret.
  • the stack 10 is inserted into the pockets 17 by means of a slide 18 that can be moved back and forth.
  • Feed conveyor 12, folding turret 13 and other organs are expediently designed as shown and described in DE patent application P 37 01 273.8.
  • the blanks 11 are produced in a blanking station upstream of the insertion station described above in the direction of rotation of the folding turret 13 and are placed in the region of a pocket 17 on the outer peripheral surface 19 of the folding turret 13.
  • the positioning of the blanks 11 on the peripheral surface 19 is such that a pocket 17 is covered in each case.
  • the blanks 11 are separated from a material web 21. This is drawn off from a bobbin (not shown) and fed to a separating unit for producing the blanks 11 via deflecting rollers 22, 23 with a double rocker 24.
  • the movable double rocker 24 is used for off equal to fluctuations in the feed of the material web 21, so that it always has a constant conveying speed in the region of the cutting of the blanks.
  • a photo eye 25 is attached in the region of the deflecting roller 22 for monitoring the exact running of the material web 21.
  • the material web runs over a (first) knife roller 26 with two knives, namely counter knives 27. These are arranged and designed in a conventional manner such that a cutting edge 28 projects slightly beyond the circumferential surface of the knife roller 26.
  • a second knife roller 29 Directly opposite the knife roller 26 is a second knife roller 29, which also has two diametrically opposed knives, namely cutting knife 30.
  • the distance between the knife rollers 26 and 29 is selected such that a cutting edge 31 also protrudes beyond the circumference of the knife roller 29 the cutting knife 30 cooperates in the area of the smallest distance with a counter knife 27 in such a way that the material web 21 is cut through to form a blank 11.
  • the first knife roller 26 runs clockwise and the second knife roller 29 runs counterclockwise. In the area of a parting plane or parting point for the material web 21, parting knife 30 and counter knife 27 accordingly run in the same direction.
  • the material web 21 is brought up to the circumferential or lateral surface of the first knife roller 26.
  • This is provided with suction bores 32 opening on the circumferential surface, which are temporarily connected to a suction segment 33 of a fixed suction disk of known design when the knife roller 26 rotates.
  • the suction segment 33 is arranged or dimensioned such that the material web 21 in the region of the separating cut is sufficient for further transport is fixed to the circumference by the knife roller 26.
  • the suction segment 33 accordingly extends on both sides of the parting plane and then in the conveying direction of the knife roller up to an area in which the blank 11 is transferred to a subsequent conveyor, in the present case up to the area of a transfer conveyor 34.
  • the front area of the material web 21 and - after the separating cut - the blank 11 are accordingly held on the circumference of the knife roller 26 by suction air.
  • the transfer conveyor 34 is designed in the present embodiment as a belt conveyor.
  • a larger conveyor roller 35 receives the blanks 11 one after the other.
  • a smaller deflection roller 36 arranged at a distance therefrom is looped together with belts 37 together with the conveyor roller 35.
  • the straps 37 consist of several elastic bands lying next to one another, in particular O-rings. These run in circumferential grooves 38 of the conveying roller 35 and the deflecting roller 36.
  • the belts 37 which are arranged at axial distances from one another, are thereby essentially flush with the lateral surface of the conveying roller 35 and the deflecting roller 36. This is provided in the area between the belts 37 with suction bores 39 which, in turn, come into contact with a stationary suction segment 40 during a partial area of the rotation and are thus acted upon by suction air.
  • the blanks 11 are conveyed through a section which is somewhat smaller than half the circumference of the knife roller 26 and then transferred to the directly adjacent conveyor roller 35.
  • the suction hole holding the blank 11 or the material web 21 on the outer surface of the knife roller 26 is connected to a fixed ventilation hole 41, so that the blank 11 or the material web 21 is no longer held in this area, but by the outer surface the conveying roller 35 is changed to the circumference of the conveying roller 35 as a result of the suction bore 39 which is effective in this area and is supplied with suction air.
  • the dimensions in the present case are such that the length of a blank 11 in the transport direction is greater than the contact area on the knife roller 26, so that the material web 21 already bears against the conveyor roller 35 before the separating cut.
  • the blank 11 is placed on the peripheral surface 19 of the folding turret 13 by the conveyor roller 35 and is held along a certain conveying path by the belts 37 which also cling to this peripheral surface 19.
  • the separation of the blanks 11 and promotion to the folding turret 13 is dependent on the delivery of objects, namely stacks 10, such that no blanks 11 are applied to the folding turret 13 in the absence of stacks 10 in the area of the feed conveyor 12.
  • the feed of the stacks 10 in the area of the feed conveyor 12 is monitored, e.g. through optical sensors. If there is a gap in the feed of the stacks 10, the drive of the material web 21 is interrupted in a controlled manner.
  • the material web 21 is driven by a pair of pull rollers 42, 43 which are arranged upstream of the knife rollers 26, 29 in the conveying direction. These are stopped when stacks 10 are not supplied, but in such a way that the material web continues to convey a section of the material web, specifically over the separation point in the area of the knife rollers 26, 29.
  • This trailing section 44 is approximately a quarter of the circumference of the knife roller 26 (FIG. 3). In this position shown there, the material web 21 comes to a standstill.
  • This exact standstill position is achieved in that the pull rollers 42, 43 are driven by a servomotor 45 (stepper motor) which receives a stop impulse from the feed conveyor and then conveys the material web 21 further by the trailing section 44 described.
  • the transmission of the stop signal to the servomotor 45 is controlled so that the promotion of the trailing section 44 always takes place after a separating cut.
  • the knife rollers 26, 29 and the transfer conveyor 34 - like the folding turret 13 - continue to move unchanged, namely continuously, after the material web 21 has stopped.
  • the knives are moved with each other apart from cutting engagement.
  • the separating knives 30 on the knife roller 29 are (temporarily) adjusted for this purpose.
  • the separating knives 30 are movably attached to the knife roller 29.
  • the knife roller 29 is provided on diagonally opposite sides with recesses 46 which are approximately triangular in cross section.
  • the separating knives 30 are movable in these, namely pivotably mounted.
  • a radially inner end or edge region of the separating knife 30 is provided with a round thickening 47, namely cylindrical in the bearing region. This is rotatably (sliding) in a suitable, trough-shaped recess 48 of a side surface 49 of the recess 46.
  • the approximately radially or parallel to an (imaginary) radial surface side surface 49 also serves as a contact surface for the cutting knife 30 in the normal or cutting position .
  • the separating knife 30 is moved out of the cutting position by a slight pivoting movement about the axis of the bearing thickening 47, namely by rotating it in the recess 48 (FIG. 3, upper separating knife 39).
  • This pivoting movement of the cutting knife 30 takes place against the load of a spring 50.
  • the spring sits on a bolt 51 directed transversely to the cutting knife 30, which passes through a bore 52 in the cutting knife 30 and is fastened to the side surface 49.
  • an actuator is mounted in the knife roller 29 adjacent to the side surface 49, namely a rotatable eccentric piece 53.
  • This is designed as a pivot pin flattened on one side, which can be rotated about an axis parallel to the axis of rotation of the knife roller 29. During a rotation, an edge emerges from the plane of the side surface 49 and pivots the cutting knife 30. In the cutting position, the cutting knife lies against the eccentric piece 53 in the area of the flattening.
  • an actuating arm 54 is attached to this, namely at a free end which projects laterally from the knife roller 29.
  • This is provided at its free end with a feeler roller 55, which receives 54 for actuating the eccentric piece 53 and thus for pivoting the cutting knife 30 on a stationary, movable actuating member.
  • this consists of a curve segment 56 which can be moved into the working position (FIG. 3) or out of it by a pressure medium cylinder 57 (FIG. 2).
  • the cam segment 56 is designed such that the feeler roller 55 runs freely against a support surface 58 of the cam segment 56 when the knife roller 29 rotates.
  • the actuating arm 54 When moving further, the actuating arm 54 is increasingly pivoted until the relevant separation in the region of the separation point for the material web 21 knife 30 is pivoted back sufficiently far. Accordingly, only very short, slight movements of the cutting knife take place exclusively in the area of the cutting point. After that, namely when the feeler roller 55 has left the area of the cam segment 56, the cutting knife 30 returns to the normal position.
  • the knife roller 26 is provided with a recess 59 adjacent to the counter knife 27, into which the disengaged separation knife 30 briefly enters while taking the material web 21 with it, but without cutting through it.
  • the transfer conveyor 34 runs in the present case at a slightly higher speed than the knife roller 26. This creates small gaps between the successive blanks 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
EP88107919A 1987-06-30 1988-05-18 Procédé et dispositif pour alimenter des ébauches d'emballage à un dispositif de pliage Expired - Lifetime EP0297266B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873721459 DE3721459A1 (de) 1987-06-30 1987-06-30 Verfahren und vorrichtung zum zufuehren von verpackungs-zuschnitten zu einem faltaggregat
DE3721459 1987-06-30

Publications (3)

Publication Number Publication Date
EP0297266A2 true EP0297266A2 (fr) 1989-01-04
EP0297266A3 EP0297266A3 (en) 1990-03-07
EP0297266B1 EP0297266B1 (fr) 1994-09-28

Family

ID=6330525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107919A Expired - Lifetime EP0297266B1 (fr) 1987-06-30 1988-05-18 Procédé et dispositif pour alimenter des ébauches d'emballage à un dispositif de pliage

Country Status (6)

Country Link
US (1) US4885895A (fr)
EP (1) EP0297266B1 (fr)
JP (1) JPH0764337B2 (fr)
BR (1) BR8803223A (fr)
CA (1) CA1308130C (fr)
DE (2) DE3721459A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2668104B1 (fr) 2011-01-26 2017-04-05 GIMA TT S.p.A. Appareil de commande et de contrôle pour contrôler et commander des unités opératives d'une machine de conditionnement et procédé correspondant

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3832533A1 (de) * 1988-09-24 1990-03-29 Focke & Co Vorrichtung zum zufuehren von verpackungs-zuschnitten zu einem faltaggregat
IT1238296B (it) * 1990-04-02 1993-07-12 Gd Spa Metodo ed impianto per il sovraincarto di pacchetti.
US5216867A (en) * 1991-11-04 1993-06-08 Sundowner Offshore Services, Inc. Well mast structure
JPH0562034U (ja) * 1992-01-28 1993-08-13 株式会社小坂研究所 チップの取り出し装置
IT1261903B (it) * 1993-03-10 1996-06-03 Sasib Spa Dispositivo alimentatore di foglietti di confezionamento, in particolare nelle macchine impacchettatrici di sigarette.
GB9401441D0 (en) * 1994-01-26 1994-03-23 Molins Plc Label-applying method and apparatus
JP3079504B2 (ja) * 1995-10-23 2000-08-21 株式会社新川 ウェーハのダイピックアップ方法
DE10231867A1 (de) * 2002-07-12 2004-01-22 Basell Polyolefine Gmbh Führung eines aufgeschnittenen Vorformlings
EP1534496B1 (fr) * 2002-07-12 2010-10-27 Basell Polyolefine GmbH Procede a etapes multiples pour la production d'articles en plastique creux a partir de demi-coques
DE102013106166A1 (de) 2013-06-13 2014-12-31 Krones Aktiengesellschaft Transportmittel zur zuschnittszufuhr
DE102013111477A1 (de) 2013-10-17 2015-04-23 Krones Aktiengesellschaft Verpackungsmaschine und verfahren zum beschicken einer verpackungsmaschine mit zuschnittsstapeln

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269085A (en) * 1963-09-23 1966-08-30 Package Machinery Co Wrapper feed mechanism
DE2205366A1 (de) * 1971-02-12 1972-08-31 Amf Inc., New York, N.Y. (V.St.A.) Verfahren und Vorrichtung zum Steuern der Vorschubgeschwindigkeit einer Verpackungsmaterialbahn auf einer Verarbeitungsstraße, insbesondere in einer Zigarettenverpackungsmaschine
US4135344A (en) * 1976-03-31 1979-01-23 G. D. Societa Per Azioni Device to check and discard lengths of wrapping material (foil) in very high speed packet cigarette packers
GB2074533A (en) * 1980-04-09 1981-11-04 Sasib Spa Feeding sheets in packaging machines

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2953880A (en) * 1958-09-02 1960-09-27 Redington Co F B Wrapping machine
DE1169361B (de) * 1959-12-08 1964-04-30 Hauni Werke Koerber & Co Kg Verfahren und Vorrichtung zum Zufuehren von Huellmaterial zu einer Verpackungsbahn
US3136104A (en) * 1961-08-21 1964-06-09 Kimberly Clark Co Apparatus for manufacture of cellulosic products
DE1586089A1 (de) * 1966-07-08 1970-04-16 Hauni Werke Koerber & Co Kg Verfahren und Packmaschine zum Einschlagen von Zigarettenpackungen
DD127713A1 (de) * 1976-10-13 1977-10-12 Wolfgang Girndt Vorrichtung zum unterbrechen der packstoffzufuehrung
JPS5394699A (en) * 1977-01-28 1978-08-18 Shirakawa Shigiyou Kk Reinforcing treatment for knot strength of aromatic polyamide thread
DD138635A1 (de) * 1978-09-04 1979-11-14 Werner Kmoch Vorrichtung zum abtasten der anwesenheit eines bonbons
DE2949252A1 (de) * 1979-12-07 1981-06-11 Focke & Co, 2810 Verden Verfahren und vorrichtung zum verpacken von zigaretten o.dgl.
DD158536A1 (de) * 1981-05-13 1983-01-19 Guenter Foerster Vorrichtung zum unterbrechen des abzuges
DE3348487C2 (de) * 1983-09-14 1998-05-20 Focke & Co Vorrichtung zum Herstellen von Großpackungen
JPS60169289U (ja) * 1984-04-18 1985-11-09 横浜ゴム株式会社 スポ−ツ用防禦ネツト
JPS63126952A (ja) * 1986-11-13 1988-05-30 旭化成株式会社 噛み切り防止用シ−ト状物

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269085A (en) * 1963-09-23 1966-08-30 Package Machinery Co Wrapper feed mechanism
DE2205366A1 (de) * 1971-02-12 1972-08-31 Amf Inc., New York, N.Y. (V.St.A.) Verfahren und Vorrichtung zum Steuern der Vorschubgeschwindigkeit einer Verpackungsmaterialbahn auf einer Verarbeitungsstraße, insbesondere in einer Zigarettenverpackungsmaschine
US4135344A (en) * 1976-03-31 1979-01-23 G. D. Societa Per Azioni Device to check and discard lengths of wrapping material (foil) in very high speed packet cigarette packers
GB2074533A (en) * 1980-04-09 1981-11-04 Sasib Spa Feeding sheets in packaging machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2668104B1 (fr) 2011-01-26 2017-04-05 GIMA TT S.p.A. Appareil de commande et de contrôle pour contrôler et commander des unités opératives d'une machine de conditionnement et procédé correspondant

Also Published As

Publication number Publication date
EP0297266A3 (en) 1990-03-07
DE3721459A1 (de) 1989-01-12
CA1308130C (fr) 1992-09-29
EP0297266B1 (fr) 1994-09-28
US4885895A (en) 1989-12-12
JPS6445221A (en) 1989-02-17
BR8803223A (pt) 1989-01-17
DE3851660D1 (de) 1994-11-03
JPH0764337B2 (ja) 1995-07-12

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