EP0195345B1 - Procédé et machine à cercler des paquets avec une bande de cerclage - Google Patents

Procédé et machine à cercler des paquets avec une bande de cerclage Download PDF

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Publication number
EP0195345B1
EP0195345B1 EP86103181A EP86103181A EP0195345B1 EP 0195345 B1 EP0195345 B1 EP 0195345B1 EP 86103181 A EP86103181 A EP 86103181A EP 86103181 A EP86103181 A EP 86103181A EP 0195345 B1 EP0195345 B1 EP 0195345B1
Authority
EP
European Patent Office
Prior art keywords
band
drive
strapping
speed
main
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
EP86103181A
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German (de)
English (en)
Other versions
EP0195345A2 (fr
EP0195345A3 (en
Inventor
Nikolaus Stamm
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.)
A Konrad Feinmechanik AG
Original Assignee
A Konrad Feinmechanik AG
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 A Konrad Feinmechanik AG filed Critical A Konrad Feinmechanik AG
Publication of EP0195345A2 publication Critical patent/EP0195345A2/fr
Publication of EP0195345A3 publication Critical patent/EP0195345A3/de
Application granted granted Critical
Publication of EP0195345B1 publication Critical patent/EP0195345B1/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
    • 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 method for strapping a packaged item with a strapping band according to the preamble of claim 1, and a machine for strapping the packaged item according to the preamble of claim 2.
  • Various methods and machines are known for strapping packaged goods with one or more strapping tapes. This is to stretch the strapping around the packaged goods, connect the end of the strap to the strap, and separate the strap from the strap stock.
  • machines for strapping packaged goods of larger dimensions it is known from CH 662 791 to allow the strapping process to take place without manual intervention.
  • the packaged goods are placed on a base provided with a yoke, in which a strap-pushing device is installed, with which the strapping band is pushed through the yoke, in which case the packaged goods are bypassed in a large loop until the strap end reaches a connecting station and there is held.
  • the strap pushing device is then switched to strap retraction, the strapping being placed around the packaged goods, tensioned and connected to the strap end and separated from the strap supply.
  • the highest possible strap speeds are used.
  • the band feed at high speed into the yoke-shaped band channel is not a particular problem and is relatively easy to achieve.
  • the tape can only be retracted so quickly that no tension peaks occur when the strap driving the strap is shut off that could either tear the strapping or damage the packaged goods. This means that the tape must be retracted at a lower speed, but this has an adverse effect on the strapping performance.
  • Such strapping machines are known from GB-B-1 545396 and from US-A-4 161 910, in which the changeover to the higher or the lower band speed is carried out by means of a manual transmission.
  • the machine shown in FIGS. 1 and 2 shows two phases of automatic strapping of a packaged product with a strapping.
  • the machine has a base with a yoke-shaped band channel 2 arranged thereon.
  • a container 4 for receiving a supply of a strapping.
  • the strapping 5 can be introduced into the container 4 with a strap feed 6.
  • the strapping 5 can be pushed back and forth by a reversible belt slide drive 7.
  • the belt slide drive 7 has a main belt drive 11 designed as a force-fitting pair of rollers and a secondary belt drive 12 designed as a pair of rollers.
  • the main belt drive 11 and the sub-belt drive 12 are operated together by a motor, e.g. an electric motor 13, as will be shown in detail with reference to FIG. 3.
  • Fig. 2 the strapping machine is shown when strapping the packaged goods 8.
  • the band slide drive 7 is reversed to retract the band.
  • the strapping band is now returned to the container 4, the band detaching from the band channel 2 and wrapping lightly around the packaged goods 8, as can be seen in FIG. 2.
  • the strapping process should also be carried out at the highest possible speed.
  • the tape advance in tape channel 2 is carried out at high speed.
  • the main tape drive When the end of the tape arrives in the connecting station 10, the main tape drive is uncoupled. Depending on the size of the moving masses of the main belt drive 11, it runs a little further after uncoupling and can do so form a loose band loop 14. Since the moving grips are relatively small, the strap loop 14 is also relatively small.
  • the main belt drive 11 After uncoupling the main belt drive 11, it is reversed for the belt retraction. The retreat is carried out at great speed.
  • the main belt drive 11 also drives the secondary belt drive 12, namely its pair of rollers is driven at a greater speed than the pair of rollers of the main belt drive 11. As a result, less belt length is returned to the container 4 than is supplied by the secondary belt drive 12.
  • a collecting magazine 16 is provided in the interior 3 of the base 1 for receiving the tape reserve. If, for any reason, the band reserve 15 would fill up the collecting magazine, a fill level indicator 17 is provided, which provides a signal for switching off the machine.
  • the formation of the band reserve 15 continues until the strapping band 5 easily wraps around the packaged goods 8. Then the main belt drive 11 is switched to a second, lower belt retraction speed. At this speed, the tape reserve 15 is first used up, i.e. the band reserve 15 is pushed back into the container 4. As soon as the band reserve 15 is used up, the strapping band 5 wrapped around the packaged goods 8 is pulled back and in this case tensioned as far as this corresponds to the setting of an electromagnetic clutch which is arranged in the drive branch for the second lower speed.
  • the secondary belt drive 12 disengages itself - directly to the strapping band, but only connected via the band reserve 15, so that when the speed changes, the switching from Usually two electromagnetic clutches are connected, no additional forces are exerted on the strapping and thus on the packaged goods 8. It is thus achieved with the belt reserve 15 that the electromagnetic clutch, which is decisive for the main belt drive 11 for the second, lower speed, responds exactly at the set belt tension. Nevertheless, the strap retraction takes place at the highest possible speed when the strapping band passes from the band channel 2 to the packaged goods 8, so that the entire strapping process takes place at the greatest possible speed, but without dangerous tensions.
  • FIG. 3 the belt slide drive of the machine shown in Figs. 1 and 2 is shown schematically.
  • the main belt drive and the secondary belt drive are designated by the reference numerals 11 and 12 as in FIGS. 1 and 2.
  • the two drives 11, 12 and the associated drive parts are mounted in a wall 18 of the base 1.
  • the connection station 10 is also fixed, with which at the end of the strapping process the end of the strap is connected to the strap, e.g. welded, and the tape is separated from the tape supply.
  • the motor 13 drives via an enveloping drive 19, which consists of two wheels 20, 21 and an enveloping member 22, e.g. a toothed belt, there is a distribution shaft 25, which drives a first clutch shaft 27 via a further cladding drive 26 and a main clutch shaft 30 via a gear train 28.
  • a second clutch shaft 29 is driven by the first clutch shaft 27 via a gear train 31 with a gear ratio of 1: 1.
  • Each clutch shaft 27, 29 has an electromagnetic clutch 32, 34, with which the clutch shafts 27 or 29 can be coupled to the enveloping drive 26.
  • the coupling shafts 27, 29 drive a pinion 36 in opposite directions of rotation via a gear 35, on which a roller 40 of a pair of rollers 40, 41 (see FIGS.
  • the roller 40 is a wheel of an enveloping drive 37, the enveloping member 38 of which drives a wheel 39 on the main clutch shaft 30.
  • the roller 41 is an adjustable, e.g. eccentric roller with which the tension of the enveloping member 38 is adjusted.
  • the strapping 5 is, see FIGS. 1 and 2, non-positively guided over the pair of rollers 40, 41, it lies on the roller 40 on the enveloping member 38 and is pressed on the roller 41 by the enveloping member 38 onto the circumference of the roller 41.
  • the frictional connection that can be achieved in this way can transmit a multiple of the greatest tensioning force of the strapping 5.
  • the wheel 39 of the enveloping drive 37 is connected to a wheel 43 of an enveloping drive 42, the further wheel 44 of which is connected to a roller 50 of a further pair of rollers 50, 51 of the auxiliary belt drive 12.
  • the non-driven roller 51 of the auxiliary belt drive 12 is rotatably supported in an eccentric sleeve 50 such that the two rollers 50, 51 can form clamping rollers for the strapping 5 lying between them when the strap is retracted, but not during the tape advance.
  • An electromagnetic main clutch 52 is mounted on the main clutch shaft 30, the armature 53 of which is slidably mounted on a pinion 54 connected to the wheel 39 of the enveloping drive 37.
  • the motor 13 drives the pair of rollers 40, 41 of the main belt drive 11 via the enveloping drives 19, 26 and one of the two coupling shafts 27, 29, which are switched accordingly by the clutches 32, 34 the auxiliary belt drive 12 runs somewhat faster.
  • the strapping tape 5 is introduced into the tape channel 2 at the first higher speed.
  • the main drive 11 is reversed by switching one of the clutches 27, 29.
  • the tape is now retracted at the first higher speed until the strapping 5 easily wraps around the packaged goods 8.
  • the secondary belt drive 12 is driven via the enveloping drives 37, 45 at a somewhat greater speed than the speed of the pair of rollers 40, 41, as a result of which the belt reserve 15 mentioned is now formed.
  • the motor 13 now drives the gear 39 via the gear train 28, whereby the pair of rollers 40, 41 of the main belt drive 12 is driven at the second, lower speed.
  • the tape reserve is now used up by withdrawing the tape and then the strapping is tightened around the packaged goods 8 in accordance with the tensioning force set on the main coupling 52.
  • a second sensor 59 detects the reduction in speed when the set tension force is reached and thereby activates the connecting station 10, which now ends the strapping process by connecting the end of the strap and the strap and severing the strap supply.
  • the tape placed around the packaged goods 8 is free of tension and stands still.
  • the auxiliary belt drive 12 is set in such a way that it runs in this standstill phase but does not exert any force on the belt.
  • the tape reserve 15 is used up, the tape is brought up to the tension set on the main coupling 52 and the connection station 10 is activated.
  • the switching of the main clutch 52 and the clutches 27, 29 thus takes place in a standstill phase in which the belt is not additionally stressed. Even if the time interval for switching the clutches 27, 29, 52 is very short, the distance traveled by the belt is approximately 0.5 m at the first, higher speed of approximately 5 m / s used. If the tape reserve 15 were missing, considerable additional stresses of the tape with the known disadvantages could occur during the switching time.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Claims (8)

1. Procédé pour cercler un paquet (8) avec une bande de cerclage (5), la bande étant prise sur une provision de bande par un entraînement et ensuite mise en boucle lâche autour du paquet, jusqu'à ce que l'extrémité de la bande soit reçue dans une station de raccordement (10) et y soit maintenue, sur quoi la bande est tirée en arrière avec une première vitesse, plus grande, jusqu'à être déposée, lâche, sur le paquet, et, de là, tendue à la tension souhaitée avec une deuxième vitesse, plus petite, et être raccordée dans la station de raccordement avec l'extrémité de la bande, caractérisé en ce que, pour le passage de la première à la deuxième vitesse, le transport de la bande est interrompu, l'interruption étant obtenue pendant le retour de la bande de cerclage avec la première vitesse grâce à une réserve de bande (15), qui se forme entre la station de raccordement (10) et un entraînement principal de bande (11), sur quoi, après la commutation de l'entraînement principal de bande (11) de la première à la deuxième vitesse, la réserve de bande est épuissée par le retour en arrière de la bande et, ensuite, la bande est tendue.
2. Machine pour cercler un paquet, comportant un entraînement principal de bande (11) commutable, mener par un moteur, pour faire avancer l'extrémité de la bande autour d'un paquet (8) jusqu'à réception et maintien de l'extrémité de bande dans une station de raccordement (10) et pour le retour de la bande formée en boucle lâche autour du paquet, caractérisée en ce qu'entre l'entraînement principal de bande (11) et la station de raccordement (10) est disposé un entraînement auxiliaire de bande (12) qui, pendant le retour de la bande, présente une plus grande vitesse que la vitesse de bande de l'entraînement principal de bande (11), jusqu'à ce que la bande de cerclage (5) soit déposée lâche sur le paquet (8).
3. Machine suivant la revendication 2, caractérisée en ce que l'entraînement auxiliaire de bande (12) est réalisée sous la forme d'un entraînement en retour comportant une paire de rouleaux (50, 51 l'entraînement de la bande étant effectué, lors du retour de la bande, avec la première vitesse, la plus grande, par la paire de rouleaux.
4. Machine suivant la revendication 3, caractérisée en ce que, sur la paire de rouleaux (50, 51), l'un des rouleaux (50) peut être moteur et que l'autre rouleau (51) est réalisé sous la forme d'un rouleau à serrage à excentrique.
5. Machine suivant la revendication 3 ou la revendication 4, caractérisée en ce que l'un des rouleaux (50) de la paire de rouleaux (50, 51) est entraîné par l'entraînement principal de bande (11
6. Machine suivant l'une des revendications 2 à 5, caractérisée en ce qu'à la roue d'entraînement (40) de l'entraînement principal de bande (11) sont associés, pour l'avancement et pour le retour de la bande avec la première vitesse, plus grande, deux accouplements (27, 29) électromagnétiques, tandis que, pour le retour de la bande avec la deuxième vitesse, plus petite, et pour tendre la bande de cerclage (5), est prévu un troisième accouplement (52) électromagnétique comportant un dispositif pour prérégler la tension de la bande de cerclage.
7. Machine suivant l'une des revendications 2 à 6, caractérisée en ce que deux capteurs (58, 59) sont prévus pour émettre un signal dans le cas d'une modification de la vitesse de rotation dans les entraînements de bande, capteurs dont l'un (59) est disposé sur l'entraînement principal de la bande (11) pour constater que la tension réglée de la bande de cerclage (5) est atteinte et l'autre (58) est disposé sur l'entraînement auxiliaire de bande (12) pour constater la pose sans tension de la bande de cerclage (5) sur le paquet (8).
8. Machine suivant l'une des revendications 2 à 7, caractérisée en ce qu'aux entraînements de bande (11, 12), principal et auxiliaire, est associé un magasin de réception (16) entre l'entraînement auxiliaire de bande et l'entraînement principal de bande (11) et la station de raccordement (10) pour une réserve de bande (15) formée lors du retour de la bande avec la première vitesse, plus grande, ledit magasin étant muni d'un détecteur de niveau plein (17).
EP86103181A 1985-03-15 1986-03-10 Procédé et machine à cercler des paquets avec une bande de cerclage Expired - Lifetime EP0195345B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1180/85A CH668402A5 (de) 1985-03-15 1985-03-15 Verfahren und maschine zur umreifung eines packgutes mit einem umreifungsband.
CH1180/85 1985-03-15

Publications (3)

Publication Number Publication Date
EP0195345A2 EP0195345A2 (fr) 1986-09-24
EP0195345A3 EP0195345A3 (en) 1987-11-11
EP0195345B1 true EP0195345B1 (fr) 1990-09-26

Family

ID=4204365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103181A Expired - Lifetime EP0195345B1 (fr) 1985-03-15 1986-03-10 Procédé et machine à cercler des paquets avec une bande de cerclage

Country Status (6)

Country Link
US (1) US4691498A (fr)
EP (1) EP0195345B1 (fr)
JP (1) JPS61217316A (fr)
CA (1) CA1262678A (fr)
CH (1) CH668402A5 (fr)
DE (2) DE8533188U1 (fr)

Families Citing this family (26)

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Publication number Priority date Publication date Assignee Title
DE3825668C1 (fr) * 1988-07-28 1990-02-15 Signode Bernpak Gmbh, 5630 Remscheid, De
US5048261A (en) * 1989-09-14 1991-09-17 Lantech, Inc. Top sheet dispenser for a stretch wrapping apparatus
DE4014307C2 (de) * 1990-05-04 1996-11-07 Rmo Systempack Gmbh Packmaschine
US5146847A (en) * 1991-04-01 1992-09-15 General Motors Corporation Variable speed feed control and tensioning of a bander
EP0524134B1 (fr) * 1991-04-30 1996-12-27 B.V. Metaverpa Méthode et dispositif pour délivrer un ruban à cercler
DE4138800A1 (de) * 1991-11-26 1993-05-27 Signode Bernpak Gmbh Verfahren und vorrichtung zur vermeidung von umreifungsmittelbedingten betriebsunterbrechungen an maschinen zum umreifen von packstuecken
US5333438A (en) * 1992-11-06 1994-08-02 Signode Corporation Dual coil power strapping machine
US5287802A (en) * 1992-12-14 1994-02-22 Signode Corporation Strap severing and ejecting mechanism for strapping machine
DE59807937D1 (de) * 1997-07-28 2003-05-22 Orgapack Gmbh Dietikon Bandschiebeeinrichtung einer Umreifungsmaschine
IT1310516B1 (it) * 1999-10-13 2002-02-18 Gd Spa Metodo e macchina per la fascettatura di gruppi di foglietti.
JP2002029504A (ja) * 2000-07-19 2002-01-29 Strapack Corp 梱包機におけるバンド送り長さ調整装置
DE10134258B4 (de) * 2001-07-18 2006-03-09 Cyklop Gmbh Verpackungsmaschine
JP2004142830A (ja) * 2002-09-30 2004-05-20 Strapack Corp バンド掛け梱包機
JP2004123157A (ja) * 2002-10-01 2004-04-22 Strapack Corp バンド掛け梱包機におけるバンドリフィード方法
DE10340310A1 (de) * 2003-09-02 2005-03-31 Signode Bernpak Gmbh Vorrichtung zum Umreifen von insbesondere kompressiblem Packgut wie Wellpappelagen od. dgl.
CH696398A5 (de) * 2003-11-21 2007-05-31 Automatic Taping Systems Verfahren zum Banderolieren von gestapeltem, weichem und/oder empfindlichem Packgut
TWM269260U (en) * 2004-08-04 2005-07-01 Packway Inc Improved belt feeding structure for packing machine
CH698112B1 (de) * 2005-09-05 2009-05-29 Ats Tanner Banding Systems Ag Banderolieren eines Packgutstapels.
US10518914B2 (en) * 2008-04-23 2019-12-31 Signode Industrial Group Llc Strapping device
US11999516B2 (en) 2008-04-23 2024-06-04 Signode Industrial Group Llc Strapping device
CN102530291B (zh) * 2011-12-22 2013-07-10 杭州永创智能设备股份有限公司 一种新型打包机
US20190046819A2 (en) * 2014-01-23 2019-02-14 Signode Industrial Group Llc Strapping device having a strip feed device
PL3105129T3 (pl) 2014-02-10 2019-07-31 Orgapack Gmbh Urządzenie opasujące
NL2015589B1 (nl) * 2015-10-08 2017-05-02 Bandall Productie B V Inrichting voor het banderolleren van producten.
EP3398866A1 (fr) 2017-05-05 2018-11-07 Sund Birsta AB Unité d'alimentation et de mise en tension destinée à être utilisée dans une machine de cerclage ou une machine de liaison de fils
EP3984896A1 (fr) * 2020-10-16 2022-04-20 ATS-Tanner Banding Systems AG Machine de banderolage de produits fragiles

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Publication number Priority date Publication date Assignee Title
CH456124A (de) * 1966-05-04 1968-05-15 Girsberger & Tschappu Verfahren zum Schweissverbinden von zwei Enden eines thermoplastischen Bandes und Vorrichtung zum Ausüben dieses Verfahrens
JPS5379695A (en) * 1976-12-22 1978-07-14 Naigai Steel Works Packing machine
JPS53102199A (en) * 1977-02-17 1978-09-06 Nichiro Kogyo Kk Method for packing by way of thermoplastic band
US4161910A (en) * 1978-05-19 1979-07-24 Signode Corporation Strap feeding and tensioning assembly
US4218969A (en) * 1979-02-01 1980-08-26 Nichiro Kogyo Company, Limited Band feeding and tightening apparatus for strapping machine
JPS55164103U (fr) * 1979-05-14 1980-11-26
JPS5839694B2 (ja) * 1980-02-29 1983-08-31 ストラプツクシモジマ株式会社 梱包機におけるバンド引締め装置
DE3300039A1 (de) * 1982-01-08 1983-07-21 Shoko Kiko Co., Ltd., Shijo nawate, Osaka Verfahren zum regulieren der spannung eines umschnuerungsbandes in einer umschnuerungsmaschine
JPS6077820A (ja) * 1983-10-03 1985-05-02 ニチロ工業株式会社 バンド式梱包機のバンド引戻し引締め装置

Also Published As

Publication number Publication date
EP0195345A2 (fr) 1986-09-24
CH668402A5 (de) 1988-12-30
DE8533188U1 (de) 1986-01-30
EP0195345A3 (en) 1987-11-11
CA1262678A (fr) 1989-11-07
US4691498A (en) 1987-09-08
DE3674439D1 (de) 1990-10-31
JPS61217316A (ja) 1986-09-26

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