EP0064734A1 - Dispositif pour appliquer et tendre une bande de serrage autour d'un emballage - Google Patents

Dispositif pour appliquer et tendre une bande de serrage autour d'un emballage Download PDF

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Publication number
EP0064734A1
EP0064734A1 EP82103968A EP82103968A EP0064734A1 EP 0064734 A1 EP0064734 A1 EP 0064734A1 EP 82103968 A EP82103968 A EP 82103968A EP 82103968 A EP82103968 A EP 82103968A EP 0064734 A1 EP0064734 A1 EP 0064734A1
Authority
EP
European Patent Office
Prior art keywords
strapping
push rod
tension
lever
pressure rollers
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
EP82103968A
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German (de)
English (en)
Other versions
EP0064734B1 (fr
Inventor
International Emil Hoff Cyklop
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.)
CYKLOP INTERNATIONAL EMIL HOFFMANN KG
Original Assignee
CYKLOP INTERNATIONAL EMIL HOFFMANN 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 CYKLOP INTERNATIONAL EMIL HOFFMANN KG filed Critical CYKLOP INTERNATIONAL EMIL HOFFMANN KG
Publication of EP0064734A1 publication Critical patent/EP0064734A1/fr
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Publication of EP0064734B1 publication Critical patent/EP0064734B1/fr
Expired 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
    • B65B13/00—Bundling articles
    • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
    • B65B13/22—Means for controlling tension of binding means

Definitions

  • the invention relates to a device for applying and tensioning a strapping around a package, with a deflecting roller and a traction means which entrains the strapping by frictional engagement and which has mutually movable parts which clamp and take the strapping between them and thereby tension them.
  • Strapping machines with a tensioning and closing device and an annular band channel are known in which a steel or plastic band is guided around a package and then placed on it, tensioned and closed with a sealing sleeve. Since the tension of the strapping becomes increasingly higher when tensioning the strapping, it can happen that the tensioning rollers, which pull the rear end of the strap coming from the supply reel to generate the tension, slip on the strapping and the strapping does not reach the desired tension before its ends be connected to each other by the closure sleeve.
  • the object of the invention is therefore to generate a tension pressure proportional to the strap on the tensioning device to prevent slipping of the traction means on the strapping and to continue the tensioning process even with increasing strap tension.
  • the lever is expediently an angle lever, on one leg of which the deflection roller is mounted and the other leg acts on the push rod and actuates a switch for switching off the drive for the traction means.
  • This switch is expediently adjustable to the desired belt tension and switches the tensioning drive off automatically as soon as the desired belt tension is reached.
  • the traction means expediently has two counter-rotating, driven, endless belts which enclose the strapping between them and are pressed together by pressure rollers which are acted upon by the toggle lever.
  • tension belts which are expediently designed as V-belts, smooth plastic strapping can also be tensioned high without their surface being damaged by the traction means during tensioning.
  • a plurality of pressure rollers are mounted in two rows arranged on opposite sides of the tire in bearing bodies in such a way that d ate the pressure rollers of one row in the longitudinal direction of the strapping are offset from the pressure rollers of the opposite row and when one bearing body is fixed and the other bearing body is displaceable transversely to the strapping and connected to the toggle lever.
  • the pressure rollers of the one row are arranged in the gussets of the pressure rollers of the other row, so that the straps passing between them, which enclose the strapping between them, are forced to wave through the tensioning device.
  • the pressure rollers of the tensioning device lying opposite each other on gaps therefore produce a contact pressure directed obliquely to the passage on the belts passing through them and the strapping band, and the continuous strapping band is also supported with compressive forces against the belts and pressure rolls and is not only carried along by longitudinal frictional forces .
  • the push rod has a back-stiffened joint in which the push rod can be bent out by an actuating element in order to remove the tension before cutting off the end of the band.
  • Strapping made of plastic in particular, has the property of unraveling and splicing in the longitudinal direction when it is cut under tensile stress.
  • the invention it is possible to abruptly remove the tension present in the rear end of the tape leading to the supply roll in a very simple manner by rendering the push rod ineffective via which the pivotable deflection roller against which the tape end rests under tension against the tensioning device supports.
  • the actuator for kinking the push rod is expediently a rocker arm, one end of which acts on the back-stiffened joint and the other end of which is acted upon by the device for closing and cutting off the strapping.
  • the invention is based on the knowledge that the tensioning device has fulfilled its task as soon as the strap clamps present in the closing and cutting device have taken over the tension of the strap end strapping the package and it is no longer necessary to pull from the strap end onto the Apply strapping.
  • Fig. 1 10 denotes a strapping machine for packages 11, which has an annular band guide channel 12 which surrounds the package 11 to be strapped and in which the strapping 13 is advanced in the direction of the arrow and placed around the package 11.
  • the strapping 13 coming from the supply roll 17 runs through the strap tensioning device 18 and is pushed by the feed device 19 in the direction of the arrow through the strap guide channel 12 until it runs against a stop 20 in the closing and cutting device 15.
  • a band clamp 21 In the direction of advance of this stop 20 there is a band clamp 21 with which the front end of the band is clamped.
  • the strapping 13 at its rear end is reversed from the strap tensioner 18, i.e. pulled against the direction of the arrow. It then emerges radially inward from the tape guide channel 12, wraps around the package 11 and is tightened under tension around the package 11 by the tape tensioning device 18.
  • the rear end of the band is clamped in a second clamp 22 of the closing and cutting device 15.
  • the band ends located between the band clamps 21 and 22 are then closed with a seal or sealing sleeve by the closing device 15, which is not shown in detail, the rear band end being cut off.
  • the feed and belt tensioning device is shown in more detail in FIG. 2.
  • the tensioning device 18 consists of a traction means acting on the strapping 13, which has two mutually movable parts, which are formed by two endless V-belts 23 and 24, which are tensioned and driven around spaced-apart pulleys, of which, however, in Fig. 2 only the upper pulleys 25 and 25 are shown.
  • the strapping 13 is between rule the mutually facing strands 24a and 25a of the V-belts 23 and 24, which are pressed together by pressure rollers 27 and 28 and thereby clamp the strapping 13 between them.
  • the pressure rollers 27 are arranged in a row I on one side of the V-belts 23 and 24 in the longitudinal direction 29 of the strapping at a distance from one another and rotatably mounted in a bearing body 30 which is firmly anchored in the machine frame 14.
  • the pressure rollers 28 are also located at a lateral distance from one another in the longitudinal direction 29 of the strapping band 13 and are rotatably mounted in a bearing body 31 which is located on the opposite side of the V-belt spaces 24a and 25a and in the housing transversely to the longitudinal direction of the strapping band 13 in the direction of the arrow 32 is mounted displaceably and can be moved with its pressure rollers 28 against the bearing body 30 and removed therefrom.
  • the pressure rollers 28 are arranged with respect to the pressure rollers 27 in such a way that they face each other with a gap, i.e. are located in the longitudinal direction 29 of the strapping band in the region of the spaces between the pressure rollers 27.
  • the movable bearing body 31 is articulated on one leg 33 of a toggle lever 34, the other leg 35 of which is pivotably mounted on a fixed abutment 36 supported in the machine frame.
  • a pull rod 38 acts on the knee joint 37, which is under the action of a pulling device, for example a tension spring or a pull magnet, which strives to stretch the knee joint 37.
  • a push rod 39 is articulated to the knee joint 37 of the toggle lever 34 and consists of two parts 39a and 39b, which are connected to one another by a back-stiffened joint 40 that are.
  • the back stiffening of the joint 40 is in the embodiment shown here on the right side in FIG. 2 of the push rod 39 and is formed by the freely projecting leg 41 of a rocker arm 42, which will be described in more detail below.
  • the upper push rod part 39b is connected in an articulated manner with its upper end 43 facing away from the stiffened joint 40 to one leg 44 of an angle lever 45 which, in the exemplary embodiment shown, is pivotably mounted on the axis 46 of the upper pulley 26 of the V-belt 24.
  • the other leg 47 of the angle lever 45 protrudes upward and carries at its free end 48 a feed and deflection roller 49 of the feed device 19, which deflects the strapping in a horizontal direction and pushes it through the band guide channel.
  • the feed roller 49 is arranged below the entry point 50 of the tape guide channel 12 and cooperates with two pressure rollers 51, which are mounted on a rocking lever 53 and are pressed by a spring 52 against the feed roller 49, so that this between the feed roller 49 and the pressure rollers 51st continuous strapping is pressed against the feed roller 49 and is carried by it when the feed roller 49 rotates in the direction of arrow 54.
  • one leg 44 of the angle lever 45 carries at its free end a pressure piece 55 which acts on the actuating element 56 of a switch 57, with which the drive of the tensioning device 18, not shown here, is switched on and off, as will be explained in more detail below.
  • the already mentioned rocker arm 42 has a substantially Z-shaped shape and is on an axis 58 in dimension machine frame is tiltable. Its lower lever arm 59 carries at its free end the flange 41 of the joint 40, while its other lever arm 60 is provided with an extension 61, which is acted upon by an actuating finger 62 provided with a pressure roller 63, which acts on a moving part of the closing and Cutting device 15 is located (Fig o 1).
  • the strapping is then first moved in the feed direction 64 and advanced by the feed device 19 through the strap guide channel 12 up to the stop 20.
  • the feed roller 49 which is also driven by the rotary drive of the tensioning device 18, rotates at the same peripheral speed and in the same direction as the V-belts 23 and 24.
  • the toggle lever 34 is then spread slightly, as a result of which the bearing body 31 is moved against the bearing body 30 and the V-belts are pressed together with the strapping band lying between them.
  • the toggle lever 34 is thereby increasingly spread, whereby the pressure exerted on the movable bearing body 31 becomes ever higher and its pressure rollers 28 are pressed with ever greater force from the left against the V-belts 23 and 24 and these into the spaces between the pressure rollers 27 of the fixed Press bearing body 30.
  • the pressure rollers 28, the V-belts 23 and 24 and the strapping 13 located between them then assume the position shown in broken lines in FIG. 2, in which the V-belts 23 and 24 with the strapping 13 undulate between the pressure rollers 27 and 28 Clamping device 18 are pulled through.
  • the contact pressure exerted on the strapping in the tensioning device 18 is proportional to the tension of the strapping and increases with increasing strap tension, so that the strapping cannot slip between the tension means parts 23 and 24.
  • the pressure element 55 which swivels with the angle lever 45, actuates the switch 57, which actuates the control for the closing mechanism and stops the drive of the tensioning device 18.
  • the band clamp 22 in the closing and cutting device 15 (FIG. 1), which can be operated by force or can be self-clamping, now takes over the tension of the strapping band surrounding the package 11.
  • the closing and cutting mechanism of the device 15 is then actuated in order to connect the strap ends between the strap clamps 21 and 22 and to cut off the rear end of the strapping strap, which is still in the tensioning device 18 and leads to the supply roll 17.
  • the cutting knife 66 FIG.
  • the actuator 62 connected to the closing and cutting mechanism pivots the rocker arm 42 in a clockwise direction.
  • the flange 41 of the rocker arm stiffening the back of the joint 40 thereby presses the two parts 39a and 39b of the push rod 39 in the joint 40 to the left, as shown in broken lines in FIG. 2.
  • no more compressive force can be transmitted from the angle lever 45 to the toggle lever 34 via the push rod 39, so that the knee joint 37 dodges upwards and the movable bearing body 31 with its pressure rollers 28 returns to the position shown in solid lines. This removes the tension on the rear end of the strapping band so that the rear end of the strapping band is no longer under tension when it is cut by the knife of the cutting device.
  • the tensioning device for the strapping can also consist of a tensioning roller which, depending on the strap tension, is pressed against an abutment roller via a toggle lever.
  • special means can be provided in order to reliably maintain the back stiffening of the push rod joint when the push rod is under pressure.
  • the two parts of the push rod can be slightly overstretched and the like by a tension spring. be held in this overstretched position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Package Closures (AREA)
EP82103968A 1981-05-12 1982-05-07 Dispositif pour appliquer et tendre une bande de serrage autour d'un emballage Expired EP0064734B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813118712 DE3118712A1 (de) 1981-05-12 1981-05-12 Vorrichtung zum anlegen und spannen eines umreifungsbandes um ein packstueck
DE3118712 1981-05-12

Publications (2)

Publication Number Publication Date
EP0064734A1 true EP0064734A1 (fr) 1982-11-17
EP0064734B1 EP0064734B1 (fr) 1984-11-14

Family

ID=6132044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103968A Expired EP0064734B1 (fr) 1981-05-12 1982-05-07 Dispositif pour appliquer et tendre une bande de serrage autour d'un emballage

Country Status (7)

Country Link
US (1) US4444097A (fr)
EP (1) EP0064734B1 (fr)
JP (1) JPS57204813A (fr)
BR (1) BR8202702A (fr)
DE (2) DE3118712A1 (fr)
ES (1) ES265142Y (fr)
FI (1) FI70844C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548268A1 (de) * 1995-12-22 1997-06-26 Telefunken Microelectron Schließsystem
EP0894718A1 (fr) * 1997-07-28 1999-02-03 Orgapack GmbH Dispositif pour introduire un lien dans une machine de cerclage

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5339601A (en) * 1991-05-03 1994-08-23 Highland Supply Corporation Decorative cover with band
US5105599A (en) * 1989-02-24 1992-04-21 Highland Supply Corporation Means for securing a decorative cover about a flower pot
US5426914A (en) * 1989-02-24 1995-06-27 Highland Supply Corporation Band applicator for applying a band about a sheet of material and a pot
US4605456A (en) * 1985-05-02 1986-08-12 Signode Corporation Method and apparatus for feeding and tensioning strap in a strapping machine
JPS63258713A (ja) * 1987-04-17 1988-10-26 ストラパック株式会社 梱包機におけるバンド供給・引締装置
US5410856A (en) * 1988-09-26 1995-05-02 Highland Supply Corporation Decorative assembly for a floral grouping
US5617702A (en) * 1989-02-24 1997-04-08 Southpac Trust International, Inc. Method for securing a decorative cover about a flower pot
US6668521B1 (en) * 1989-02-24 2003-12-30 Southpac Trust International, Inc. Method for applying a band about a sheet of material and a floral grouping
DE3933756A1 (de) * 1989-10-10 1991-04-18 Schwede Horst Rueckspann-vorrichtung fuer ein verpackungs-band
US6584892B2 (en) * 2001-07-12 2003-07-01 Illinois Tool Works, Inc. Strapping machine with modular heads
DE10323171B4 (de) * 2003-05-22 2006-07-27 Helmut Schmetzer Schweißkopf für eine Bandumreifungsmaschine
JP4726707B2 (ja) * 2006-06-06 2011-07-20 株式会社神戸製鋼所 圧延機及び圧延方法
DE102009004480B3 (de) * 2009-01-09 2010-07-22 Cyklop Gmbh Vorrichtung zur Ermittlung der Spannung eines Umreifungsbands o.dgl.
EP3093244B2 (fr) 2015-05-13 2022-01-05 Bizerba SE & Co. KG Dispositif de transport de feuille pour une machine d'emballage
NL2015588B1 (nl) * 2015-10-08 2017-05-02 Bandall Productie B V Inrichting voor het banderolleren van producten.
NL2015589B1 (nl) * 2015-10-08 2017-05-02 Bandall Productie B V Inrichting voor het banderolleren van producten.
CN113978791B (zh) * 2021-11-05 2023-01-10 北京航星机器制造有限公司 一种扎带机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1945837A1 (de) * 1969-01-27 1970-08-27 Signode Corp Verfahren und Vorrichtung zum Zufuehren und Spannen eines Bandes
US3526187A (en) * 1968-10-02 1970-09-01 Signode Corp Toggle controlled strapping apparatus and method
DE2224673B2 (de) * 1971-06-11 1975-09-25 Signode Corp., Glenview, Ill. (V.St.A.) Vorrichtung zum Zuführen und Spannen eines um einen Gegenstand herumzuführenden Bandes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3023693A (en) * 1956-11-13 1962-03-06 Signode Steel Strapping Co Strap feeding and tensioning mechanism
US3272113A (en) * 1964-12-14 1966-09-13 Signode Corp Power strapping machine and the like and adjustable feeding and tensioning means therefor
US3327618A (en) * 1965-05-17 1967-06-27 Package Sealing Company Export Package binding machines
JPS487269U (fr) * 1971-06-04 1973-01-26
JPS5145275A (ja) * 1974-10-16 1976-04-17 Hitachi Ltd Jukobunkatsusetsuzokukoojusuru tasopurintokairoban oyobi sonoseiho
US4212238A (en) * 1979-03-05 1980-07-15 Interlake, Inc. Rotary dog assembly
JPS596768B2 (ja) * 1980-09-09 1984-02-14 雅保 高見 梱包機のテ−プ送り出し引締装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526187A (en) * 1968-10-02 1970-09-01 Signode Corp Toggle controlled strapping apparatus and method
DE1945837A1 (de) * 1969-01-27 1970-08-27 Signode Corp Verfahren und Vorrichtung zum Zufuehren und Spannen eines Bandes
DE2224673B2 (de) * 1971-06-11 1975-09-25 Signode Corp., Glenview, Ill. (V.St.A.) Vorrichtung zum Zuführen und Spannen eines um einen Gegenstand herumzuführenden Bandes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548268A1 (de) * 1995-12-22 1997-06-26 Telefunken Microelectron Schließsystem
DE19548268C2 (de) * 1995-12-22 2000-02-17 Telefunken Microelectron Schließsystem
EP0894718A1 (fr) * 1997-07-28 1999-02-03 Orgapack GmbH Dispositif pour introduire un lien dans une machine de cerclage
US6041581A (en) * 1997-07-28 2000-03-28 Orgapack Gmbh Band moving device of a strapping device

Also Published As

Publication number Publication date
JPS57204813A (en) 1982-12-15
DE3118712A1 (de) 1982-12-02
FI820660L (fi) 1982-11-13
ES265142U (es) 1982-12-01
FI70844B (fi) 1986-07-18
BR8202702A (pt) 1983-04-19
ES265142Y (es) 1983-06-01
US4444097A (en) 1984-04-24
JPH0431927B2 (fr) 1992-05-27
DE3261231D1 (en) 1984-12-20
EP0064734B1 (fr) 1984-11-14
FI70844C (fi) 1986-10-27

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