EP0194627B1 - Machine automatique de cerclage pourvue d'un appareil de tension et de scellage - Google Patents

Machine automatique de cerclage pourvue d'un appareil de tension et de scellage Download PDF

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Publication number
EP0194627B1
EP0194627B1 EP86103156A EP86103156A EP0194627B1 EP 0194627 B1 EP0194627 B1 EP 0194627B1 EP 86103156 A EP86103156 A EP 86103156A EP 86103156 A EP86103156 A EP 86103156A EP 0194627 B1 EP0194627 B1 EP 0194627B1
Authority
EP
European Patent Office
Prior art keywords
hoop
casing
sliding plate
strip
plate
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
EP86103156A
Other languages
German (de)
English (en)
Other versions
EP0194627A2 (fr
EP0194627A3 (en
Inventor
Dieter Zoppa
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.)
Pkm-Maschinen & Co GmbH KG
Original Assignee
Pkm-Maschinen & Co GmbH KG
Pkm-Maschinen & Co GmbH 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
Priority claimed from DE19853508835 external-priority patent/DE3508835A1/de
Priority claimed from DE19853508837 external-priority patent/DE3508837A1/de
Application filed by Pkm-Maschinen & Co GmbH KG, Pkm-Maschinen & Co GmbH KG filed Critical Pkm-Maschinen & Co GmbH KG
Priority to AT86103156T priority Critical patent/ATE58101T1/de
Publication of EP0194627A2 publication Critical patent/EP0194627A2/fr
Publication of EP0194627A3 publication Critical patent/EP0194627A3/de
Application granted granted Critical
Publication of EP0194627B1 publication Critical patent/EP0194627B1/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
    • B65B13/24—Securing ends of binding material
    • B65B13/32—Securing ends of binding material by welding, soldering, or heat-sealing; by applying adhesive
    • B65B13/327—Hand tools

Definitions

  • the invention relates to a strapping machine with a tensioning and closing device according to the preamble of claim 1.
  • a strapping machine of the aforementioned type is known from DE-A 2 353 263.
  • the adjustable plate which carries the counter electrode, is fastened to a toothed rack, which is adjustable via an arrangement of the piston rod and toothed segment. It can be assumed that a tie is closed by means of electric welding. Details of the electrodes are not shown.
  • the known device has the disadvantage that the plate described as a counter-holder is guided relatively inexactly and that deformations, signs of wear and thus possibly bad welding results occur at high required stamp pressures.
  • the correspondingly large plate also contains a considerable mass to be moved, so that the rapid and possibly gradual pivoting and thus releasing the strapping from the closure device is difficult.
  • the adjustable plate consists of two plates sliding on one another, namely an upper and a lower sliding plate, which have stops which are offset in the sliding direction, one of the two sliding plates carrying a bearing shoe in which the end of an adjusting lever is articulated.
  • the adjustable plate accordingly consists of two plate elements sliding on each other, namely an upper and a lower sliding plate, which have stops offset in the sliding direction.
  • graduated movements of the two sliding plates can be produced, which both enable the exact band alignment and guarantee the exact position of the two overlapping bands in the region of the closure device.
  • the plate with the counter electrode can be moved into the area of the stamp elements in such a way that it is held on both sides without tilting.
  • the strapping is reliably carried on one level and a long service life can be expected.
  • the adjustable plate can be moved in and out using a lever and an attached bearing shoe, in which the end of the lever rotates.
  • the lever itself can be operated hydraulically or mechanically, for example by cam action.
  • the lower sliding plate is preferably run over by the upper sliding plate in such a way that a guide channel located in the upper sliding plate is positioned above the counter electrode.
  • This guide channel is used to hold and precisely place the strapping.
  • a stop lever can also be provided at the end of the guide channel, which makes a rotary movement when the strip comes into contact with or abuts and triggers a switching operation with this rotary movement.
  • Figure 1 shows a side view of the functional side of a tensioning and closing device for an automatic strapping machine.
  • a strapping 1 is wrapped around an object, e.g. a coil, a bale or the like, around.
  • the course of the strapping 1, which runs next to or below the tensioning and closing device is indicated by a dashed loop 2.
  • the strapping is removed from a supply roll (not shown). The individual assemblies of the tensioning and closing device are explained below in accordance with the belt pass.
  • the usual steel band of various widths that can be used for such automatic strapping machines is used as the strapping band. It should be pointed out, however, that if a suitable welding device is used, as will be explained later, a plastic strip of a known type can also be used.
  • the strapping 1 enters a slot below a tensioning disk 3, this slot being formed by the lower periphery of the tensioning disk 3 and a movably arranged clamping strip 6.
  • the clamping disc 3 is rotatably attached to the machine frame 4.
  • a bearing 5 is provided which supports the shaft 3 '.
  • the rear end of the shaft 3 ' is provided with a crank mechanism 7, the eccentric crank arm 8 of which is connected to the rod 9 of a piston-cylinder arrangement 10.
  • the clamping disc 3 can be rotated.
  • the forces and the feed rate of the piston-cylinder arrangement 10 can be determined via a control device (not shown).
  • the tensioning disc 3 the thickness of which corresponds to the bandwidth, carries a clamping rocker 12 in the area of the band entrance, which in turn carries the clamping strip 6 lying transversely to the strip periphery, the effective area of this clamping strip 6 being oriented tangentially to the circumference of the clamping disc.
  • the two swing arms 13, 14 belonging to the clamping rocker 12 each run on one side of the tensioning disk 3 and are pivoted at 15.
  • a tension spring 16 pulls the clamping rocker 12 in the counterclockwise direction (in FIG. 1). If the tensioning disk 3 is in its waiting position, as shown in FIG. 1, the clamping bar 6 strikes against the end face of a tape guide bar 17.
  • the strap guide 17 carries the strapping 1 on its upper side.
  • the strapping band 1 reaches the contact area of two oppositely driven, pressing drive rollers 20, 21.
  • the two drive rollers 20, 21 are provided on the outside with a friction-increasing plastic coating, preferably made of polyurethane. This prevents the strapping 1 from being damaged. Accordingly, only a limited feed force can be generated by the drive rollers 20, 21.
  • the upper drive roller 20 is driven by a hydraulic motor 24 via a shaft 22, which is supported at 23 in the machine frame 4, and a clutch 25 is also interposed. When the drive rollers 20 are at a standstill, the hydraulic motor 24 produces only a limited torque exerted on the drive roller 20.
  • the drive roller 21 is driven in opposite directions by the drive roller 20, mediated by the belt 1 lying in between. A separate drive for this role is not provided.
  • the drive roller 21 carries, mediated by its shaft 26, a stroboscopic disk 27 which can be monitored by an optical standstill indicator 28.
  • the strapping 1 arrives in a straightening unit 31 placed in front of the machine frame 4.
  • the straightening unit serves to straighten the strapping before further processing, so that straps of inferior quality can also be processed.
  • the straightener 31 has five straightening rollers 32, 33 offset from one another.
  • the lower three straightening rollers33 are mounted on the machine frame.
  • the middle one, 33 ', is coupled to a drive 34.
  • the upper straightening rollers 32 can be set in parallel by means of an adjusting screw 35. As a result, the alignment of the strapping can be adjusted precisely.
  • the straightening mechanism 31 is divided in the feed channel 30, which continues in a discharge channel 36, and between the upper and lower straightening rollers and can be opened by means of a quick-release fastener, which consists of lever 37 with pressure spring 38.
  • the strapping band 1 passes from the discharge channel 36 from the straightening unit 31 into a holding and welding station 40.
  • the holding and welding station 40 is delimited by two lateral pylons 41 and 42 which are screwed onto the machine frame 4 and carry a closure plate 75 which is omitted in Figure 1 for drawing reasons, but is shown in Figure 6 a.
  • four stamp elements 44, 45, 46 and 47 are arranged next to one another in a column shape, each of which can be moved vertically.
  • the first stamp element 44 is the first holding stamp which is provided in its foot region with a feed channel 48 for the strapping band 1 to be guided loosely.
  • the first holding stamp continues upwards into a bearing head 49, which receives a bearing fork 50 in a recess, which allows a slight evasive movement between the bearing fork 50 and holding stamp 44.
  • the bearing fork 50 in turn is carried by the end of a piston rod 51 which is fastened to a piston which is arranged movably within a piston-cylinder arrangement 52 and can be controlled via a control valve 53.
  • Two further piston-cylinder arrangements 54 and 55 are combined with the former (52) in a system block and are surrounded by a housing 64. They are controlled by associated control valves 54 'and 55'.
  • the second and third stamp elements 45 and 46 are arranged, both of which can be moved simultaneously and are also carried by the same piston-cylinder arrangement 54.
  • the stamp elements 45 and 46 are provided with a common support head 56 in which they are held.
  • Disc springs 57 are arranged in the interior of the two stamp elements 45 and 46, which enable an electrode head 58 and 58 'to be pressed on evenly, even with slight erosion.
  • Such spring elements are essential, since the hydraulic system alone does not allow precise adjustment.
  • An electrode belongs to the electrode head 58 chend large-volume cooling housing 59, which is provided with connections 60, 60 'for cooling water.
  • the electrode head 58 is provided in a manner known per se with corresponding insulating devices, power supply lines and the like, which are not shown in detail.
  • the stamp element 45 also includes a shear knife 61 which is attached laterally above the electrode head 58 and slides on the side of the first stamp element 54, so that the strapping band 1 coming from the feed channel 48 can be cut in the region of the first stamp element 44.
  • the last stamp element 47 is another holding stamp.
  • the cut tape end is pressed onto the end of the tape loop 2 already formed and held by a holding foot 63.
  • This stamp element 47 can also be actuated by a corresponding piston-cylinder arrangement 55 with an associated valve 55 '.
  • FIG. 5 shows further details of the structure.
  • the cylinders of the piston-cylinder arrangements 52, 54 and 55 required for vertical movement of the stamp elements are contained in a housing 64.
  • the cylinder rods protrude downward from the housing 64.
  • a further, horizontally operating piston-cylinder arrangement 65 is attached to the machine frame 4 in an oscillating manner with the cylinder 66.
  • a lever 68 is moved over the cylinder rod 62 and is suspended with one arm at its upper end (68 ').
  • the lever 68 ends at its lower end 69 in a shoe 70.
  • the shoe 70 is connected to an upper sliding plate 71.
  • the upper sliding plate 71 slides guided on a lower sliding plate 72, in the front end of which a counter electrode 73 is embedded, which can also be designed as a short-circuit plate. When the electrodes are pressed on and the strip ends lie on top of one another, a circuit is closed which enables the welding process.
  • the lower slide plate 72 is in the extreme right position, as shown in FIG.
  • the upper sliding plate 71 covers the counter electrode 73 in its end region 71 ′, so that the band 1 runs above the lower plate 72.
  • a laterally open funnel 77 as can be seen in FIG. 1.
  • a stop lever 78 is mounted in the upper sliding plate 71, which has a stop head 79 and a release foot 80 and is mounted at 81.
  • the trigger foot 80 accordingly moves towards the viewer of FIG. 6a when the stop head 79 moves away from the viewer.
  • the trigger head 80 triggers a switching impulse via a microswitch (not shown), which is also built into the upper slide plate 71.
  • the stop lever 78 is brought back into the starting position via a resetting spring element (not shown).
  • FIGS. 6 b and 6 c show the different positions of the upper and lower sliding plates 71, 72 relative to one another.
  • the tape 1 is threaded and the stop head 79 is triggered.
  • the lever 68 moves with the piston rod 62 to the left until the stop 82 abuts against the stop surface 83 of the lower door plate.
  • the upper plate 71 has moved so far that the end 71 'releases the counter electrode 73.
  • the strapping is now just above the counter electrode and below the electrode 58.
  • the welding process is triggered by the electrode 58 moving downwards and generating a current surge.
  • the upper plate 71 moves further to the left and now takes the lower sliding plate 72 with it, so that the welded belt loop is released.

Landscapes

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

Claims (4)

1. Machine automatique de cerclage pourvue d'un dispositif de tension et de scellage pour une bande de cerclage, dans laquelle le dispositif de tension et de scellage comprend:
- un dispositif d'amenée de la bande de cerclage prélevée sur une réserve,
- un dispositif d'avance pour la bande de cerclage,
- un élément de tension tirant la bande de cerclage contre le dispositif d'avance,
- au moins un poinçon à électrode (54; 154) pouvant être déplacé transversalement à la longueur de la bande et servant de dispositif de soudage,
- un dispositif de déplacement permettant de déplacer les poinçons à électrode (54; 154),
- une plaque mobile (71, 72; 171) sous les poinçons à électrode (54; 154) qui peut être déplacée avec la contre-électrode (73) à la manière d'un chariot dans le plan de la zone de chevauchement, caractérisée en ce que la plaque mobile (71, 72) est composée de deux plaques coulissant l'une sur l'autre, à savoir une plaque coulissante supérieure (71) et une plaque coulissante inférieure (72) qui présentent des butées (82, 83) décalés dans la direction de glissement, l'une des deux plaques coulissantes (71) portant un sabot de montage dans lequel est articulée l'extrémité d'un levier de réglage (68; 168).
2. Machine automatique de cerclage selon la revendication 1, caractérisée en ce que la plaque coulissante supérieure (71) peut passer au-dessus de la plaque coulissante inférieure (72) de telle sorte qu'un canal de guidage (77) de la bande de cerclage se trouvant dans la plaque coulissante supérieure soit positionné au-dessus de la contre-électrode (73).
3. Machine automatique de cerclage selon la revendication 1 ou 2, caractérisée en ce que la plaque coulissante supérieure (71) est munie d'un levier de butée (78) qui peut être actionné par l'extrémité qui arrive de la bande de cerclage (1).
4. Machine automatique de cerclage selon les revendications 1 à 3, caractérisée en ce que l'extrémité de la plaque coulissante (72; 171) qui porte la contre-électrode (73) peut être entrée dans une rainure (74) d'une fermeture de boîtier (75).
EP86103156A 1985-03-13 1986-03-08 Machine automatique de cerclage pourvue d'un appareil de tension et de scellage Expired - Lifetime EP0194627B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86103156T ATE58101T1 (de) 1985-03-13 1986-03-08 Umreifungsautomat mit spann- und verschlussvorrichtung.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3508835 1985-03-13
DE19853508835 DE3508835A1 (de) 1985-03-13 1985-03-13 Spannvorrichtung fuer einen umreifungsautomaten
DE3508837 1985-03-13
DE19853508837 DE3508837A1 (de) 1985-03-13 1985-03-13 Spann- und verschlussvorrichtung fuer einen umreifungsautomaten

Publications (3)

Publication Number Publication Date
EP0194627A2 EP0194627A2 (fr) 1986-09-17
EP0194627A3 EP0194627A3 (en) 1987-11-25
EP0194627B1 true EP0194627B1 (fr) 1990-11-07

Family

ID=25830248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86103156A Expired - Lifetime EP0194627B1 (fr) 1985-03-13 1986-03-08 Machine automatique de cerclage pourvue d'un appareil de tension et de scellage

Country Status (4)

Country Link
US (1) US4689938A (fr)
EP (1) EP0194627B1 (fr)
CA (1) CA1301046C (fr)
DE (1) DE3675410D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011042191A1 (fr) 2009-10-10 2011-04-14 Sms Logistiksysteme Gmbh Cercleuse automatique pour ligaturer des lots d'objets, notamment des bandes métalliques enroulées en paquets
WO2011134634A2 (fr) 2010-04-29 2011-11-03 Sms Logistiksysteme Gmbh Dispositif et procédé pour cercler des bobines enroulées, en particulier de bobines d'acier

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE248748T1 (de) * 1996-05-08 2003-09-15 Orgapack Ag Spannvorrichtung
US9745090B2 (en) 2012-04-24 2017-08-29 Signode Industrial Group Llc Modular strapping machine for steel strap
KR101701205B1 (ko) 2016-04-08 2017-03-02 주식회사 삼정제이피에스 코일 포장용 결속 헤드 모듈
CN107697340A (zh) * 2017-06-30 2018-02-16 深圳大工人科技有限公司 Dgr‑iiia型超声波焊式全自动pet打捆机
CN109502072B (zh) * 2018-12-23 2024-05-17 洛阳曜辰自动化科技有限公司 一种基于手持式气动打包机的双机头全自动打包装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1586203B1 (de) * 1967-02-07 1971-08-12 Nichiro Kogyo K K Vorrichtung zur Fuehrung eines Bandes,insbesondere an der Verbindungsstelle von Bandanfang und Bandende bei einer Verschnuerungsmaschine
US3771436A (en) * 1970-12-26 1973-11-13 Ikegai Iron Works Ltd Device for cutting and welding plastic band for use in automatic strapping machine
DD95528A1 (fr) * 1972-03-20 1973-02-12
JPS5130517B2 (fr) * 1972-08-30 1976-09-01
DE2353263A1 (de) * 1973-10-24 1975-04-30 Helff Joachim Vorrichtung zum klemmen und schneiden des bindemittels in einer bindemaschine
US4120239A (en) * 1977-03-10 1978-10-17 Ovalstrapping, Inc. Strapping machine
LU79160A1 (de) * 1978-03-03 1978-06-28 Luedtke P Schweissvorrichtung fuer eine paketverschnuermaschine
US4212238A (en) * 1979-03-05 1980-07-15 Interlake, Inc. Rotary dog assembly
US4240865A (en) * 1979-06-25 1980-12-23 Interlake, Inc. Apparatus and method for applying plastic strap
US4575994A (en) * 1983-12-05 1986-03-18 Shoko Kiko Co., Ltd. Package strapping machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011042191A1 (fr) 2009-10-10 2011-04-14 Sms Logistiksysteme Gmbh Cercleuse automatique pour ligaturer des lots d'objets, notamment des bandes métalliques enroulées en paquets
WO2011134634A2 (fr) 2010-04-29 2011-11-03 Sms Logistiksysteme Gmbh Dispositif et procédé pour cercler des bobines enroulées, en particulier de bobines d'acier
DE102011017431A1 (de) 2010-04-29 2011-12-01 Sms Logistiksysteme Gmbh Vorrichtung und Verfahren zum Umreifen von aufgewickelten Bunden, insbesondere von Stahlbunden

Also Published As

Publication number Publication date
EP0194627A2 (fr) 1986-09-17
EP0194627A3 (en) 1987-11-25
DE3675410D1 (de) 1990-12-13
CA1301046C (fr) 1992-05-19
US4689938A (en) 1987-09-01

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