EP0919468B1 - Vorrichtung zum Umreifen von Packstücken - Google Patents

Vorrichtung zum Umreifen von Packstücken Download PDF

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Publication number
EP0919468B1
EP0919468B1 EP98122344A EP98122344A EP0919468B1 EP 0919468 B1 EP0919468 B1 EP 0919468B1 EP 98122344 A EP98122344 A EP 98122344A EP 98122344 A EP98122344 A EP 98122344A EP 0919468 B1 EP0919468 B1 EP 0919468B1
Authority
EP
European Patent Office
Prior art keywords
band
clamping part
abutment plate
curvature
clamping
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
EP98122344A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0919468A1 (de
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.)
Signode Switzerland GmbH
Original Assignee
Orgapack GmbH
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 Orgapack GmbH filed Critical Orgapack GmbH
Publication of EP0919468A1 publication Critical patent/EP0919468A1/de
Application granted granted Critical
Publication of EP0919468B1 publication Critical patent/EP0919468B1/de
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
    • 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

Definitions

  • the invention relates to a device for strapping Packages with a tape, especially made of weldable Plastic, with a tape supply unit, one Belt transport and tensioning unit, one as a separate unit provided sealing unit with a counter plate and a tape guide unit according to the preamble of the claim 1.
  • CH-A-686 shows 079 an automatic parcel tying device of the named Kind with a locking unit in which a first and a second clamping device directly under a back and forth movable sliding plate are arranged.
  • the sliding plate serves the forces when clamping the plastic band to catch during the closing process, is moved away after the closing process, to release the package.
  • the clamps are up and down moving parts with toothed or otherwise suitable molded head parts for clamping the plastic strap between the moving parts and the sliding plate.
  • DE-A-44 also shows similarly constructed clamping devices 25 908, DE-A-40 14 307 and EP-0 490 477.
  • US-A-4 011 807 and EP-A-0 099 606 show devices with pivoted clamping parts with curved Active surfaces. However, these devices also exist the danger that the plastic band is stuck in the Condition at high belt tension slips.
  • the object of the invention is a device for strapping packages to ensure that that the strapping does not work even at high tension slips.
  • clamps with self-locking pivotally mounted clamping parts are provided.
  • clamps with swivel-mounted clamping parts can be used in simple constructive configurations so that they are self-locking and therefore proportional to the belt tension Result in clamping force.
  • clamping parts are used with curved active surfaces used to increase the Clamping effect can be provided with fine teeth.
  • the curvature of the active surfaces can be cylindrical be, i.e. a constant curvature with a circle radius have, but it can also be curves with varying Curvature can be used.
  • the Clamping parts with the curved active surfaces designed so that they can also be released more easily when the belt is tensioned can.
  • the band clamps are designed so that, on the one hand the angular range encompassed by the curved active surface, is chosen as large as possible, on the other hand the band clamp is shaped in the actual clamping area in such a way that the point of engagement or the area of engagement of the main effective clamping force on the active surface of the clamping part during a pivoting movement of the clamping part in one direction shifted, which is opposite to the pivoting movement.
  • Figure 1 shows a schematic representation of the device for strapping packages 1.
  • the device exists essentially from a tape supply unit 2, one Belt transport and tensioning unit 3, a sealing unit 4 with a counter plate 5 and a tape guide unit 6 to guide the tape 7.
  • FIG. 2 shows the closing unit 4 in a view and in a side view during a first phase of the Strapping process, namely the advancement of the band 7.
  • the belt 7 is first of all from the belt transport and tensioning unit 3 in direction A through the one in the basic position Capping unit 4 and further through the tape guide unit 6 (see Fig. 1) pushed through until it finally from direction B back onto the tape guide unit 6 hits.
  • Feeding the tape 7 by one Control unit, not shown, is controlled then first between the counter plate 5 and a first one Clamping part 10, then further between the counter plate 5 and a belt separator 11, the belt separator 11 den Switch mechanism 12 carries the signal to terminate of the tape feed there.
  • the first clamping part 10 which is about a first pivot axis 13 is pivoted, forms together with the counter plate 5, which has a first formation 14, a first band clamp 15.
  • a second clamping part 16 which is pivotally mounted about a second pivot axis 17, and together with the counter plate 5, which is a second formation 18, forms a second band clamp 19.
  • the first Band clamp 15 is used to insert the end of the band to clamp before the tape 7 by means of the tape transport and Clamping unit 3 is clamped.
  • the second band clamp 19 serves the tensioned band on its opposite Also clamp the end before the tape is welded and is separated.
  • the band clamps are shown below of Figures 6 and 7 described in more detail.
  • the first clamping part 10 is supported by a counter knife 20 a slide 21 is attached, moved.
  • the slide 21 is by one of several cams 22, which on a Cam shaft 23 sit, driven.
  • the second clamping part 16 is by a tab 24 which is attached to a plunger 25 is appropriate, moved.
  • the plunger 25 is also one Cam 22 driven.
  • the counter plate 5 is in fixed connection with one Swivel housing 30 which is rotatable about an axis 31 on a Main housing 32 is attached. From the side view is It can be seen that the belt separator 11, which is also from a Cam 22 is driven, also on the main housing 32 rotatably arranged about a further axis of rotation 33 is. Furthermore, a welding tongue 34 for melting the Bands also driven by a cam 22 and around another axis 35 rotatably mounted on the swivel housing 30. Belt separator 11 and welding tongue 34 are driven so that either the tape cutter 11 or the welding tongue is pivotable under the counter plate 5.
  • FIG. 3 shows the closing unit 4 in a view and in a side view during a second phase of the Strapping process in which the retraction and tensioning of the Volume 7 takes place.
  • the first clamping part 10 is by the Slider 21 against the first formation 14 of the counter plate 5 pressed and clamps the beginning of the tape in between. thereupon the belt 7 from the belt transport and tensioning unit 3 withdrawn and then by a tensile force in Excited towards C.
  • FIG. 4 shows the closing unit 4 in a view and in a side view during a third phase of the Strapping process in which the closing of the band 7 he follows.
  • the second clamping part 16 is through the plunger 25 pressed against the second shape 18 of the counter plate 5 and clamps the strap in between. Thereupon follows first the tape cutting and then the capping process.
  • the cutting knife 29 is removed by the further ram 26 pushed against the counter plate 5 and thereby cuts the to the tape supply unit 2 leading tape part.
  • the closure plate 27 is rotated about the axis of rotation 28, until it is parallel to the counter plate 5.
  • the Tape separator 11 withdrawn or swung out and the Welding tongue 34 inserted or swiveled in, so that the welding tongue 34 to lie between the two ends of the band comes.
  • the further plunger 26 pushes the closure plate 27 against the counter plate 5 and thus brings the Surfaces of the two ends of the tape in contact with the Welding tongue 34, causing the surfaces of the band ends to melt become.
  • the closure plate 27 is thereupon withdrawn somewhat, the welding tongue 34 is pulled out or swung out and the closure plate 27 is completely against the counter plate is extended and presses the two Band ends completely together. In this way, the capping process completed.
  • FIG. 5 shows the closing unit 4 in a view and in a side view while the strapping is released.
  • the closure plate 27 is pulled back completely and the two band clamps 15, 19 are released.
  • the pivot housing 30 is pivoted away and gives the strapping free.
  • pivot housing 30 is pivoted back again and the band separator 11 is again under the counter plate 5 pushed or swung in.
  • the clamping part 10 has a curved active surface 40 with a toothing can be provided.
  • the first formation 14 of the counter plate 5 also has a curved, similarly shaped counteracting surface.
  • the effective surface 40 is the one below Partial area of the first clamping part 10 is meant on which the pinched band 7 rests.
  • the first clamping part 10 and the corresponding first shape 14 of the counter plate 5 are specially designed to achieve easier releasability.
  • the curved active surface 40 of the first clamping part 10 has a radius of curvature r K , the center of curvature of which is offset with respect to the first pivot axis 13 and which is preferably slightly smaller than a radius of curvature radius R K of the first configuration 14.
  • both the curved active surface 40 and the first formation 14 is also cylindrical and in this case have the circular radii r and R. In both cases, however, surfaces with different curvature profiles can also be selected. If other curvature curves are selected, the curved active surface (in the mathematical sense) has a large number of (locally) different radii of curvature r K , the centers of which are offset with respect to the first pivot axis 13.
  • the band clamp should be shaped in the actual clamping area in such a way that the engagement point or the engagement zone of the mainly effective clamping force is shifted in one direction on the active surface of the clamping part during a pivoting movement of the clamping part which is opposite to the pivoting movement. This is essentially achieved by the shape of the first clamping part 10 mentioned in the previous section. If it is further assumed that the mentioned engagement point is the point on the active surface 40 of the first clamping part 10 which is currently the smallest distance from the counteractive surface of the first formation, the mainly effective clamping force N arises at this engagement point due to the torque effect of the belt tensile force S. K. It is assumed that the point of engagement in the example in FIG. 6 is initially at the apex of the curved active surface 40.
  • FIGS. 6 and 7 show the triangles of force that arise at the respective points of engagement.
  • the effective forces are the belt tensile force S (tangential at the point of engagement) and the mainly effective clamping force N K (normal at the point of engagement), which can also be used as a measure of the release force to be applied.
  • S belt tensile force
  • N K normal at the point of engagement
  • N S • cot ( W )
  • N 1 S • cot ( W 1 )
  • the clamping angle W 1 is larger in force triangle of Figure 7 than the clamping angle W in the force triangle of Figure 6 and that, consequently, the applied release force that corresponds to the (by self-locking generated) clamping force N K, decreases with increasing clamping angle W K.
  • the geometric shape of the clamping parts 10 and 16 and the shapes 14 and 18 of the counter plate 5 are therefore advantageously chosen so that the clamping angle W K can be as large as possible.
  • the angular range which the curved active surface 40 of the clamping part 10 encompasses must be chosen to be as large as possible.
  • the curved active surface of the clamping part is advantageously also provided with fine teeth, so that the clamping part grips securely even with a large clamping angle.
  • both the active surfaces of the clamping parts and the counteractive surfaces of the corresponding formations in the counterplate can be provided with toothing.
  • the arrangement of the moving components also allows a particularly compact and simple construction of the sealing unit 4. This is particularly due to the arrangement the welding tongue 34 and the belt separator 11 on opposite Sides of the swivel housing 30 reached, wherein during the closing process either the welding tongue 34 or the belt separator 11 is pivoted under the counter plate 5 is. This reduces the overall height. To release the closed band 7 is also the swivel housing 30 the counter plate 5 can be swung out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Buffer Packaging (AREA)
  • Packaging Frangible Articles (AREA)
EP98122344A 1997-12-01 1998-11-25 Vorrichtung zum Umreifen von Packstücken Expired - Lifetime EP0919468B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH276497 1997-12-01
CH2764/97 1997-12-01
CH276497 1997-12-01

Publications (2)

Publication Number Publication Date
EP0919468A1 EP0919468A1 (de) 1999-06-02
EP0919468B1 true EP0919468B1 (de) 2003-04-16

Family

ID=4241092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122344A Expired - Lifetime EP0919468B1 (de) 1997-12-01 1998-11-25 Vorrichtung zum Umreifen von Packstücken

Country Status (12)

Country Link
US (1) US6145286A (xx)
EP (1) EP0919468B1 (xx)
JP (1) JP3254189B2 (xx)
KR (1) KR100276067B1 (xx)
CN (1) CN1097544C (xx)
AT (1) ATE237499T1 (xx)
AU (1) AU706639B1 (xx)
CA (1) CA2254630A1 (xx)
DE (1) DE59807950D1 (xx)
ES (1) ES2196462T3 (xx)
NZ (1) NZ332892A (xx)
TW (1) TW407117B (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6360932B1 (en) * 2000-08-28 2002-03-26 Tekpak Corporation Strap feeding and withdrawing structures of an upright binding machine
JP2003246304A (ja) * 2002-02-26 2003-09-02 Nichiro Kogyo Co Ltd 梱包用バンドの操作シール装置
DE10323171B4 (de) * 2003-05-22 2006-07-27 Helmut Schmetzer Schweißkopf für eine Bandumreifungsmaschine
US20050166990A1 (en) * 2004-01-29 2005-08-04 Matthew Stillings Banding apparatus providing reduced banding material buckling
US7428867B1 (en) * 2007-09-07 2008-09-30 Illinois Tool Works Inc. Self-energizing gripper for strapping machine
US11999516B2 (en) 2008-04-23 2024-06-04 Signode Industrial Group Llc Strapping device
US10518914B2 (en) 2008-04-23 2019-12-31 Signode Industrial Group Llc Strapping device
CN105801400B (zh) * 2016-04-18 2018-01-19 昆明理工大学 一种利用冷轧钢盐酸酸洗废液制备特定晶体的草酸亚铁的方法
CN105732359B (zh) * 2016-04-18 2017-11-28 昆明理工大学 一种利用钢铁酸洗废液制备电池级草酸亚铁的方法
DE102019215010B4 (de) 2019-09-30 2021-12-09 Signode Industrial Group Llc Schweißkopf für eine Bandumreifungsmaschine und darin verwendbare Gegendruckplatte

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131272Y2 (xx) * 1972-02-25 1976-08-05
DE2520349C3 (de) * 1975-05-07 1981-03-26 Berning + Söhne GmbH & Co, 42369 Wuppertal Vorrichtung zum Umschnüren von Packgut mit einem thermoplastischen Band
US4050372A (en) * 1976-01-21 1977-09-27 Signode Corporation Automatic strapping machine
US4011807A (en) * 1976-01-21 1977-03-15 Signode Corporation Strap feeding and tensioning machine
IT1198394B (it) 1982-07-21 1988-12-21 In Set Ind Settala Spa Macchina automatica perfezionata per il confezionamento di cavo o tubo flessibile in rotoli o matasse
US4536248A (en) * 1983-07-25 1985-08-20 Cyklop International Emil Hoffman Kg Strapping apparatus
JPH062881Y2 (ja) * 1987-06-19 1994-01-26 雅保 高見 梱包機
CH679571A5 (xx) * 1989-08-15 1992-03-13 Konrad Feinmechanik Ag A
DE4014307C2 (de) 1990-05-04 1996-11-07 Rmo Systempack Gmbh Packmaschine
US5133532A (en) * 1990-10-11 1992-07-28 Illinois Tool Works Inc. Method and apparatus for controlling tension in a strap loop
JPH04215909A (ja) 1990-12-12 1992-08-06 Sutorapatsuku Kk 梱包方法および装置
JPH0740921A (ja) * 1993-07-20 1995-02-10 Kioritz Corp 梱包機
JPH0740917A (ja) 1993-07-21 1995-02-10 Kioritz Corp 梱包機
CH688079A5 (de) * 1994-09-30 1997-05-15 Peter Burkhalter Rechaudplatte.

Also Published As

Publication number Publication date
JP3254189B2 (ja) 2002-02-04
TW407117B (en) 2000-10-01
CN1097544C (zh) 2003-01-01
ES2196462T3 (es) 2003-12-16
KR100276067B1 (ko) 2000-12-15
AU706639B1 (en) 1999-06-17
KR19990062613A (ko) 1999-07-26
CA2254630A1 (en) 1999-06-01
CN1234357A (zh) 1999-11-10
ATE237499T1 (de) 2003-05-15
EP0919468A1 (de) 1999-06-02
US6145286A (en) 2000-11-14
JPH11222204A (ja) 1999-08-17
DE59807950D1 (de) 2003-05-22
NZ332892A (en) 1999-05-28

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