EP0154955A2 - Machine pour l'application d'une bande autour d'un paquet - Google Patents

Machine pour l'application d'une bande autour d'un paquet Download PDF

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Publication number
EP0154955A2
EP0154955A2 EP85102706A EP85102706A EP0154955A2 EP 0154955 A2 EP0154955 A2 EP 0154955A2 EP 85102706 A EP85102706 A EP 85102706A EP 85102706 A EP85102706 A EP 85102706A EP 0154955 A2 EP0154955 A2 EP 0154955A2
Authority
EP
European Patent Office
Prior art keywords
belt
band
drive
clutch
electromagnetic clutch
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
EP85102706A
Other languages
German (de)
English (en)
Other versions
EP0154955A3 (en
EP0154955B1 (fr
Inventor
Hans Huber
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.)
Albert Konrad Feinmechanik AG
Original Assignee
Albert 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 Albert Konrad Feinmechanik AG filed Critical Albert Konrad Feinmechanik AG
Publication of EP0154955A2 publication Critical patent/EP0154955A2/fr
Publication of EP0154955A3 publication Critical patent/EP0154955A3/de
Application granted granted Critical
Publication of EP0154955B1 publication Critical patent/EP0154955B1/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
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • 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 machine for applying a band around a packaged product, which is held together after being wrapped by the band after tensioning the band and after connecting the ends of the band, wherein in the drive of the machine an adjustable clutch for dosing the transmissible torque arranged on the packaged belt tension, which is between the motor of the drive and a sliding device for the belt.
  • the tape is placed and stretched largely automatically around the packaged goods, whereupon the tape ends are connected and separated from the supply roll.
  • the known machines are provided with a tape guide in the form of a yoke or a ring, in the interior of which the packaged goods are placed.
  • the end of the belt transported by the drive of the machine into the belt guide is inserted manually or automatically into a connecting station located at the foot of the belt guide.
  • the belt is tensioned by the drive arranged in the machine, whereupon after the desired belt tension has been reached, the band ends are connected and the band is cut off from the supply roll.
  • Both the transport of the tape through the tape guide and the tensioning of the tape after inserting its end and after holding it in the connection station are carried out by the same drive, however, because of the opposite nature of these two tape movements, i.e.
  • the drive can be reversible.
  • the reversibility is achieved either by changing the direction of rotation on the drive motor or by a reversing path arranged in the drive path of the drive.
  • the invention relates to a drive with a reversing path.
  • shift clutches preferably electromagnetic shift clutches, are used, which are shifted alternately.
  • a sliding device moving the belt device in the sense of looping around the packaged goods and in the other switching position the band already wrapping around the packaged goods is moved by an opposite movement of the belt pushing device in the sense of tensioning the belt.
  • the invention is based on the object of designing a machine of the type described at the outset in such a way that even very small belt tensions can be adhered to exactly, so that even delicate packaged goods can be reliably covered with a belt.
  • the clutch is a controllable electromagnetic clutch, in which an armature is under the action of a magnetic restoring force that supports the release of the clutch.
  • the machine shown in FIG. 1 for applying a band around a packaged product has a base 1 and a yoke 2 placed thereon.
  • the base 1 has in its interior a band-slide device 3 for the band 4, which is shown in simplified form.
  • the tape 4 is unwound from a supply roll 5, guided around a deflection roll 6 and then fed to the tape sliding device 3.
  • the belt pushing device 3 pushes the belt 4 in guides (not shown) through the yoke 2 and thereby forms a loop, the end of which is inserted into a connection station 7 and held there.
  • the connection station 7 lies on one the base 1 formed work surface 8 through which a packaged item 9 to be enclosed with the band 4 is placed.
  • the belt pushing device 3 is moved in the opposite direction, whereby the belt 4 emerges from the yoke 2 and tightens and wraps around the packaged goods 9 until it has reached the set belt tension.
  • the connecting station 7 then takes over the connection of the tape ends and the separation of the tape 4.
  • the type of tape used and the type of connection are not essential in connection with the present invention. However, it should be possible to use very thin tapes, cords or wires with the machine according to FIG. 1, for which a low tape tension may also be permissible.
  • the band ends can be connected in various ways, for example by means of a connecting sleeve, by deforming the band ends or by welding the band ends in the case of plastic bands.
  • the shape of the band 4 can also vary widely and can be narrow or wide or also have the shape of a cord or a wire.
  • the drive shown in FIG. 2 is a drive with a reversing path, which is designated by 10 in FIG. 2.
  • a motor 11 e.g. an electric, hydraulic or pneumatic motor, drives via an enveloping drive 12, which consists of wheels 13, 14 and an enveloping member 15 and e.g. a toothed belt drive can be a main shaft 16.
  • the main shaft 16 is rotatably mounted by means of roller bearings 17, 18 in a wall 19 of a housing (not shown) accommodated in the base 1 and in a further housing part 20.
  • a pinion 21 of the belt sliding device 3 is loosely mounted on the main shaft 16 and by means of an enveloping member 22, preferably a toothed belt, coupled to a wheel 23.
  • the belt drive consisting of the pinion 21, the sleeve member 22 and the wheel 23 forms the belt sliding device 3 for the belt 4, as will be explained more clearly with reference to FIG. 3.
  • the pinion 21 can be coupled to the main shaft 16 with the aid of an electromagnetic clutch 24.
  • the clutch 24 consists of an electrical winding 25 fastened to the wall 19, a magnet housing 26 connected to the main shaft 16 and an armature disk 27 which is connected to the pinion 21 in a manner not shown, but which extends along the main shaft 16 in the direction of Magnet housing 26 can move.
  • Fig. 2 the individual parts of the drive are pulled apart for a better overview. Accordingly, the distances between the parts of the electromagnetic clutch 24 are greatly increased.
  • the electromagnetic clutch 24 is switched by energizing the winding 25, as a result of which the armature disk 27 lies firmly against the magnet housing 26 rotating with the main shaft 16 and thereby sets the pinion 21 in rotation.
  • a further electromagnetic clutch 28 is arranged, which has a winding 29 fastened to the wall 19, a magnet housing 30 connected to the main shaft 16 and an armature disk 31.
  • the armature disk 31 is, in a departure from the design of the magnetic coupling 24, non-rotatably, but displaceably mounted on a drive wheel 32 provided with teeth.
  • the driving wheel 32 together with a driving hub 33, is freely rotatably mounted on the main shaft 16. If the electromagnetic clutch 28 is switched, the armature disk 31 is held on the magnet housing 30 and rotates together with the latter.
  • the driving hub 33 connected to the driving wheel 32 and a pinion 34 attached to it rotates.
  • the pinion 34 forms, together with a wheel 35 and an enveloping member 36, an enveloping drive for driving a control shaft 37 mounted in roller bearings 44 a pinion 38 and a perforated or toothed disk 39 are attached, to which a measuring device, for example a photocell 40, is directed, which generates a control pulse under certain operating conditions.
  • a measuring device for example a photocell 40
  • the pinion 38 meshes with a gear 42 fastened on a shaft 41, the wheel 23 of the belt-sliding device 3 being fastened to the other end of the shaft 41.
  • the shaft 41 is rotatably supported in roller bearings 43.
  • FIG. 3 the belt sliding device is shown in more detail.
  • the reference numerals in FIGS. 3 and 4 which are also used in FIG. 2, denote the same parts and are only explained to the extent that this is necessary.
  • the band 4 moves to wrap the packaged goods in Fig. 3 from bottom to top and vice versa when tensioning the band 4.
  • the band 4 runs on the outer surface of the envelope member 22 and is by an adjustable eccentric 43 on the envelope member 22, which here Timing belt is pressed.
  • the eccentric disc 43 By means of the eccentric disc 43, the length of the tape for taking the tape 4 through the enveloping body 22 is additionally lengthened and at the same time the tape 4 is pressed onto the enveloping body 22. In this way, a sufficient tensile force can be exerted on the belt 4 to generate the belt tension.
  • the enveloping drive 34, 35, 36 of the reversing path 10 and the additional gear 38, 42 are also shown in broken lines.
  • FIG. 4 shows the essential parts of the drive of the machine with the two electromagnetic clutches 24, 28.
  • the wall 19 is designed in such a way that both the shaft 41 and the control shaft 37, see FIG. 3, are mounted therein.
  • the windings 25, 29 of the two electromagnetic clutches 24, 28 are fastened to the wall 19 by means of a housing, while the magnet housings 26, 30 form an annular channel in which the winding 25, 29 is immersed.
  • the surface of the magnet housing 26, 30 which cooperates with the armature disk 27, 31 is provided with a friction lining 45.
  • the electromagnetic clutch 28 is designed not only to transmit a torque, but also to limit this torque.
  • the magnitude of the torque can be achieved by adjusting the winding voltage.
  • the transmitted torque is also dependent on the restoring force with which the armature 31 is pulled against the driving wheel when uncoupling. It has now surprisingly been found that a much more precise setting of the transmitted torque is achieved if the restoring force is applied magnetically.
  • permanent magnets 47 are inserted in the flange 46 of the driving hub 33, the number and shape of which can be selected as required. Four to eight flat cylindrical permanent magnets 47 are expediently used.
  • permanent magnets 47 can be used not only in a machine according to FIG. 1, but also in an apparatus operated by hand according to FIGS. 5 and 6.
  • the apparatus shown schematically in FIG. 5 is provided with a base plate 50 on which the moving parts of the apparatus are supported.
  • the base plate 50 is placed on the packaged goods 9 to be outlined and the band 4 is manually pulled around the packaged goods and inserted into the apparatus.
  • a plastic band is provided as band 4, which is welded by a welding jaw 51 when it is pressed against the base plate 50 and moved back and forth in the direction of the arrow.
  • the movement of the welding jaw 51 takes place by means of a fork lever 53 moved by an eccentric 52.
  • the welding jaw 51 is pressed against the base plate 50 by the force of a spring via a lever 56 pivotably mounted in an axis 55 when a pawl 57 from the position shown in FIG. 5 shown position is pivoted.
  • a lever 58 By lifting a lever 58, the lever 56 and thus the fork lever 53 with the welding jaw 51 can be raised by a roller 59 acting on the lever 56.
  • a rocker which can be pivoted about an axis 61 is simultaneously pivoted against the force of a spring 63.
  • a gap is formed between the rocker 62 and a tensioning wheel 64, whereby the band 4 is released.
  • the tensioning wheel 64 serves to maintain the tensioning force suitable for the band until the welding is finished.
  • another wear device for the band 4 can also be used. What is essential is the drive of the tensioning wheel 64, which enables the belt 4 to be precisely maintained at a specific tensioning force.
  • FIG. 6 shows wall parts 65, 66, 67 of the housing of the apparatus according to FIG. 5, which form bearing parts for the drive with housing parts 68, 69, 70, 71.
  • an electric motor 72 is supported, one Main shaft 73 drives.
  • a pinion 74 of an enveloping drive 75 is fastened, the enveloping member of which surrounds, for example, a toothed belt, the pinion 74 and a wheel 77, which is freely rotating on a shaft 48 mounted in the wall part 65 and in the housing part 69.
  • An armature slide 79 is mounted on the wheel 77 in a rotationally fixed but displaceable manner.
  • the armature disk 79 is part of the electromagnetic clutch 28, which is suitable not only for transmitting a torque, but also for limiting this torque, as shown in FIGS. 2 and 4 for the strapping machine according to FIG. 1.
  • an electrical winding 80 is fastened to the housing part 69 and surrounded by a magnet housing 81 which is fixedly connected to the shaft 78.
  • the winding 80 is excited, the armature disk 21 is pulled firmly onto the magnet housing 81, as a result of which the wheel 77 of the enveloping drive 75 sets the shaft 78 in rotation via the magnet housing 81.
  • This rotation is transmitted via a bevel gear 82, 83 to the tensioning wheel shaft 84 and thereby the tensioning wheel 64 is driven in the sense of tensioning the belt 4.
  • the peripheral force acting on the tensioning wheel 64 is set to a value which is below the tearing tension of the band 4.
  • the magnetic coupling 28 is switched off by a measuring device, e.g. a photocell 40, which generates a control pulse for switching off the clutch 28 when the speed of the magnet housing 81 changes.
  • eccentric shaft 52 for moving the fork lever 53 and the welding jaw 51 is driven by the main shaft 73 via an angular gear 85, 86.
  • the enveloping drive 75 can also be replaced by a gear transmission.
  • a further improvement in the setting accuracy of the torque of the electromagnetic clutch 28 is achieved in that the nearby parts, i.e. the wall 19 and the driving wheel 33 in FIGS. 2 and 4 or the wall part 69 and the wheel 77 in FIG. 6 are made of paramagnetic or electrically insulating material. This largely avoids residual phenomena.
  • the electromagnetic clutch 28 is switched off, the magnetic field is reduced with a delay.
  • the residual magnetism is small because of the parts made of paramagnetic or insulating material and is easily overcome by the force of the permanent magnets 47, so that the electromagnetic clutch 28 is reproducibly switched off with the set torque.
  • the area of application of the machine is considerably expanded by relatively simple means. If the set belt tension is reached when the belt 4 is tensioned, the clutch 28 begins to slip, as a result of which the perforated or toothed disk 39 in FIGS. 2 and 4 or the magnet housing 81 runs more slowly. The photocell 40 thereby detects a change in the pulses, which is a signal for switching off the clutch 28 or for switching off the motor 11 in FIG. 2 or 72 in FIG. 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP85102706A 1984-03-13 1985-03-09 Machine pour l'application d'une bande autour d'un paquet Expired - Lifetime EP0154955B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1247/84A CH662791A5 (de) 1984-03-13 1984-03-13 Maschine zum anlegen eines bandes um ein packgut.
CH1247/84 1984-03-13

Publications (3)

Publication Number Publication Date
EP0154955A2 true EP0154955A2 (fr) 1985-09-18
EP0154955A3 EP0154955A3 (en) 1988-06-29
EP0154955B1 EP0154955B1 (fr) 1991-01-16

Family

ID=4205920

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102706A Expired - Lifetime EP0154955B1 (fr) 1984-03-13 1985-03-09 Machine pour l'application d'une bande autour d'un paquet

Country Status (6)

Country Link
US (1) US4625500A (fr)
EP (1) EP0154955B1 (fr)
JP (1) JPS61109A (fr)
KR (1) KR930004546B1 (fr)
CH (1) CH662791A5 (fr)
DE (1) DE3581298D1 (fr)

Cited By (1)

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

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0649485B2 (ja) * 1988-04-15 1994-06-29 シグノード株式会社 結束ストラップの送出し、引戻し、引締め操作装置
DE4014307C2 (de) * 1990-05-04 1996-11-07 Rmo Systempack Gmbh Packmaschine
DE4335172A1 (de) 1993-10-15 1995-04-20 Basf Ag Verfahren zur Reinigung von Roh-(Meth)acrylsäure
ATE248748T1 (de) * 1996-05-08 2003-09-15 Orgapack Ag Spannvorrichtung
DE19730449A1 (de) * 1997-07-16 1999-01-21 Mosca G Maschf Spannvorrichtung für Umreifungsmaschinen
JP2002080010A (ja) * 2000-06-28 2002-03-19 Strapack Corp 梱包機
US6568158B2 (en) * 2000-07-31 2003-05-27 Strapack Corporation Band-applying apparatus and method for use in packing system
JP2009161206A (ja) * 2007-12-28 2009-07-23 Taiyo Seiki Kk テープ結束装置
CN107662721A (zh) * 2017-09-26 2018-02-06 江阴市新华橡塑机械有限公司 一种钢丝缠绕包装机
US11174051B2 (en) 2019-02-15 2021-11-16 Samuel, Son & Co. (Usa) Inc. Hand held strapping tool
US12397943B2 (en) 2022-11-29 2025-08-26 Samuel, Son & Co. (Usa) Inc. Handheld strapping device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE292764C (fr) *
DE1051082B (de) * 1955-07-18 1959-02-19 Max Baermann Elektromagnetisch betaetigte Reibungskupplung und -bremse
US2925698A (en) * 1956-08-31 1960-02-23 Seal Less Strapping Ltd Mechanism for tying packages and the like
US3309839A (en) * 1963-09-26 1967-03-21 Halm Instrument Co Package banding machine
CH605258A5 (fr) * 1976-10-08 1978-09-29 Strapex Ag
JPS53102199A (en) * 1977-02-17 1978-09-06 Nichiro Kogyo Kk Method for packing by way of thermoplastic band
US4492068A (en) * 1979-04-25 1985-01-08 Albert Obrist Ag Closure apparatus with magnetic coupling for screwing on a plastics screw closure
JPS5813405B2 (ja) * 1979-05-15 1983-03-14 ナイガイ株式会社 半自動梱包機に於けるテ−プ引締装置
JPS571013A (en) * 1980-05-30 1982-01-06 Kajimoto Kikai Kogyo Method of tightening tape in tape packer
US4383881A (en) * 1981-09-17 1983-05-17 Strapack Shimojima Co., Ltd. Strapping machine
JPS5853004U (ja) * 1981-10-07 1983-04-11 丸善工業株式会社 バンド式梱包機
US4485609A (en) * 1981-12-28 1984-12-04 Owens-Illinois, Inc. Torque limited cap applicating head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0154955A3 (en) 1988-06-29
KR930004546B1 (ko) 1993-06-01
EP0154955B1 (fr) 1991-01-16
CH662791A5 (de) 1987-10-30
US4625500A (en) 1986-12-02
KR850006364A (ko) 1985-10-05
JPS61109A (ja) 1986-01-06
DE3581298D1 (de) 1991-02-21

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