[go: up one dir, main page]

EP0064734B1 - Vorrichtung zum Anlegen und Spannen eines Umreifungsbandes um ein Packstück - Google Patents

Vorrichtung zum Anlegen und Spannen eines Umreifungsbandes um ein Packstück Download PDF

Info

Publication number
EP0064734B1
EP0064734B1 EP82103968A EP82103968A EP0064734B1 EP 0064734 B1 EP0064734 B1 EP 0064734B1 EP 82103968 A EP82103968 A EP 82103968A EP 82103968 A EP82103968 A EP 82103968A EP 0064734 B1 EP0064734 B1 EP 0064734B1
Authority
EP
European Patent Office
Prior art keywords
strap
strapping
push rod
tension
lever
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
Application number
EP82103968A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0064734A1 (de
Inventor
International Emil Hoffmann Kg 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/de
Application granted granted Critical
Publication of EP0064734B1 publication Critical patent/EP0064734B1/de
Expired legal-status Critical Current

Links

Images

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 (see e.g. DE-A No. 945837). Since the tension of the strapping becomes ever 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 strap 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 contact pressure proportional to the strap tension on the tensioning device in order to prevent the traction means from slipping on the strapping strap and to be able to continue the tensioning process even with increasing strap tension.
  • This configuration makes it possible to control the contact pressure of the traction device as a function of the tension force generated in the band and to always maintain the frictional connection between the traction device and strapping band even with increasing band tension, the contact pressure increasing automatically with increasing band 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 automatically switches off the tensioning drive 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 strapping made of plastic can also be tensioned high without their surface being damaged by the traction means during tensioning.
  • pressure rollers are mounted in two rows on opposite sides of the strapping in bearing bodies such that the pressure rollers of one row are offset in the longitudinal direction of the strapping relative to the pressure rollers of the opposite row, and if one bearing body is fixed and the other Bearing body is slidable transversely to the strapping and connected to the toggle lever.
  • the pressure rollers of one row are to a certain extent arranged in the interstices of the pressure rollers of the other row, so that the belts passing between them, which enclose the strapping between them, are forced to pass through the tensioning device in a wave-like manner.
  • the pressure rollers of the tensioning device lying opposite one another on gaps therefore produce a contact pressure directed obliquely to the passage on the belts passing between them and the strapping band, and the continuous strapping band is also supported with compressive forces against the belts and pressure rollers and is not only caused by longitudinal frictional forces taken away.
  • the push rod has a back-stiffened joint in which the push rod can be bent out by an actuating member 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 of the strap if it is cut through under tension.
  • 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, by means of which the pivotable deflection roller against which the tape end rests 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 exert a tensile force on the strap end Apply strapping.
  • Fig. 11 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.
  • a sealing and cutting device 15 and a tape feeding and tensioning device 16, to which the strapping tape 13 is fed from a supply roll 17, are arranged under the tape guide channel 12 in the machine base frame 14.
  • 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 feed direction in front 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. As soon as the desired band tension is reached, the rear end of the band is clamped in a second clamp 22 of the closing and cutting device 15. The tape ends located between the tape clips 21 and 22 are then sealed with a seal or sealing sleeve by the closing device 15, which is not shown in detail, the rear tape 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 pulling 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 by spaced pulleys, of which, however, in Fig. 2 only the upper pulleys 25 and 26 are shown.
  • the strapping 13 is arranged between 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 in the longitudinal direction 29 of the strapping 13 at a lateral distance from one another 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 13 in the direction of the arrow 32 is displaceably mounted 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 tends 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.
  • 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 interacts with two pressure rollers 51, which are mounted on a rocking lever 53 and are pressed against the feed roller 49 by a spring 52, so that this is between the feed roller 49 and the pressure rollers 51 continuous strapping against the feed roller le 49 is pressed and 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 above-mentioned rocker arm 42 has a substantially Z-shaped shape and is tiltably mounted on an axis 58 in the machine frame. 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 a shoulder 61, which is acted on 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. 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 here 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 increasingly spread apart, as a result of which 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 stationary one 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 of the tensioning 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 traction element 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 strap clamp 22 in the closing and cutting device 15 (FIG. 1), which can be operated by force or can be self-locking, 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 49 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 pressure 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.
  • the belt tension on the rear end of the strapping band is thereby eliminated, so that the rear end of the strapping band is no longer under tension when it is severed by the knife of the cutting device.
  • the tensioning device for the Strapping also consist of a tensioning roller which is pressed against an abutment roller depending on the strap tension via a toggle lever.
  • special means can be provided 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 held in this overstretched position by a tension spring or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Package Closures (AREA)
EP82103968A 1981-05-12 1982-05-07 Vorrichtung zum Anlegen und Spannen eines Umreifungsbandes um ein Packstück Expired EP0064734B1 (de)

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 EP0064734A1 (de) 1982-11-17
EP0064734B1 true EP0064734B1 (de) 1984-11-14

Family

ID=6132044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82103968A Expired EP0064734B1 (de) 1981-05-12 1982-05-07 Vorrichtung zum Anlegen und Spannen eines Umreifungsbandes um ein Packstück

Country Status (7)

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

Families Citing this family (20)

* 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
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
US5105599A (en) * 1989-02-24 1992-04-21 Highland Supply Corporation Means for securing a decorative cover about a flower 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
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
US5617702A (en) * 1989-02-24 1997-04-08 Southpac Trust International, Inc. Method for securing a decorative cover about a flower pot
DE3933756A1 (de) * 1989-10-10 1991-04-18 Schwede Horst Rueckspann-vorrichtung fuer ein verpackungs-band
DE19548268C2 (de) * 1995-12-22 2000-02-17 Telefunken Microelectron Schließsystem
DE59807937D1 (de) * 1997-07-28 2003-05-22 Orgapack Gmbh Dietikon Bandschiebeeinrichtung einer Umreifungsmaschine
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 (de) 2015-05-13 2022-01-05 Bizerba SE & Co. KG Folientransporteinrichtung für eine verpackungsmaschine
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.
US11174051B2 (en) 2019-02-15 2021-11-16 Samuel, Son & Co. (Usa) Inc. Hand held strapping tool
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

Family Cites Families (9)

* 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
US3526187A (en) * 1968-10-02 1970-09-01 Signode Corp Toggle controlled strapping apparatus and method
US3566778A (en) * 1969-01-27 1971-03-02 Signode Corp Strap feeding and tensioning system
JPS487269U (es) * 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

Also Published As

Publication number Publication date
FI70844B (fi) 1986-07-18
ES265142U (es) 1982-12-01
BR8202702A (pt) 1983-04-19
ES265142Y (es) 1983-06-01
US4444097A (en) 1984-04-24
EP0064734A1 (de) 1982-11-17
DE3118712A1 (de) 1982-12-02
JPS57204813A (en) 1982-12-15
JPH0431927B2 (es) 1992-05-27
FI70844C (fi) 1986-10-27
FI820660L (fi) 1982-11-13
DE3261231D1 (en) 1984-12-20

Similar Documents

Publication Publication Date Title
EP0064734B1 (de) Vorrichtung zum Anlegen und Spannen eines Umreifungsbandes um ein Packstück
DE1290868B (de) Vorrichtung zum Verschnueren eines Gegenstandes mit einem gespannten Kunststoffband
DE2324293B2 (de) Vorrichtung zum Umschnüren eines Ballens o.dgl
DE2521474C3 (de) Spann- und Reibungsschweißvorrichtung für ein einen Gegenstand umschlingendes Band aus thermoplastischem Kunststoff
EP3105126B1 (de) Spanneinrichtung für eine umreifungsvorrichtung
DE3878768T2 (de) Apparat zum setzen eines filmbands unter spannung.
DE2536366A1 (de) Bandfuehrung fuer eine automatische spannband-bindemaschine
EP0894718A1 (de) Bandschiebeeinrichtung einer Umreifungsmaschine
DE2623907C3 (de) Straffzieheinrichtung
DE2825332C2 (de) Greiferanordnung für die Verschlußeinrichtung einer Maschine zum Umschnüren von Packstücken oder dergleichen
DE1536271B1 (de) Verbinden von thermoplastischen Kunststoffbaendern
DE2619422C2 (de) Folienverpackungsmaschine
CH409772A (de) Spann- und Schliessvorrichtung für Bandbereifungen
EP0076908B1 (de) Vorrichtung zum Umreifen von Gegenständen
DE2534156A1 (de) Antriebseinrichtung fuer straffziehvorrichtungen von banderoliermaschinen
DE2902671A1 (de) Vorrichtung zum zerschneiden eines durchgehenden, flexiblen, bandartigen materials
DE8113906U1 (de) Vorrichtung zum Anlegen und Spannen eines Umreifungsbandes um ein Packstück
DE3608625C2 (es)
DE1786101A1 (de) Spannvorrichtung
EP0847922B1 (de) Vorrichtung zum Umreifen von Packstücken
DE19920725B4 (de) Spanneinheit
DE4121125A1 (de) Stofflegemaschine
DE2311727A1 (de) Vorrichtung zum verpacken von waren in folien
DE3426252A1 (de) Umreifungsvorrichtung
DE1761166C (de) Spann und Schließvorrichtung zum Umschnüren eines Gegenstandes mittels eines thermoplastischen Bandes

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19821013

ITF It: translation for a ep patent filed
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 3261231

Country of ref document: DE

Date of ref document: 19841220

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910415

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910425

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910426

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19910515

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910517

Year of fee payment: 10

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910531

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910826

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920508

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920531

Ref country code: CH

Effective date: 19920531

Ref country code: BE

Effective date: 19920531

BERE Be: lapsed

Owner name: CYKLOP INTERNATIONAL EMIL OFFMANN K.G.

Effective date: 19920531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19921201

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920507

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930129

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930202

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 82103968.2

Effective date: 19921204