WO2011049489A1 - Agencement pour dessangler des bobines - Google Patents

Agencement pour dessangler des bobines Download PDF

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Publication number
WO2011049489A1
WO2011049489A1 PCT/SE2009/051184 SE2009051184W WO2011049489A1 WO 2011049489 A1 WO2011049489 A1 WO 2011049489A1 SE 2009051184 W SE2009051184 W SE 2009051184W WO 2011049489 A1 WO2011049489 A1 WO 2011049489A1
Authority
WO
WIPO (PCT)
Prior art keywords
arrangement
straps
coil
cutting
disposing
Prior art date
Application number
PCT/SE2009/051184
Other languages
English (en)
Inventor
Mats Eriksson
Original Assignee
Bergs Engineering Ab
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 Bergs Engineering Ab filed Critical Bergs Engineering Ab
Priority to PCT/SE2009/051184 priority Critical patent/WO2011049489A1/fr
Priority to EP09850635.5A priority patent/EP2490951A4/fr
Priority to PCT/SE2010/051120 priority patent/WO2011049518A1/fr
Publication of WO2011049489A1 publication Critical patent/WO2011049489A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/105—Opening of web rolls; Removing damaged outer layers; Detecting the leading end of a closed web roll
    • 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
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0025—Removing or cutting binding material, e.g. straps or bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/46—Splicing
    • B65H2301/4601—Splicing special splicing features or applications
    • B65H2301/46011—Splicing special splicing features or applications in winding process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/54—Auxiliary process performed during handling process for managing processing of handled material
    • B65H2301/543—Auxiliary process performed during handling process for managing processing of handled material processing waste material

Definitions

  • the present invention relates to coiled materials in general, and particularly to arrangements for removing binding materials such as straps fitted around the circumference of such coils.
  • coils of materials are handled in large quantities. These coils are typically provided with binding materials, such as straps, securing the coiled material during storage or transportation to and from various locations within and without an industrial facility. These straps are typically manufactured from metal, and need to be removed in order to uncoil the material of the coil. Typically, an operator removes the straps manually. During a cutting process e.g. de-strapping process, the straps are very likely to spring back in an uncontrolled manner, thus potentially injuring an operator or surrounding machinery. In particular, with coils of large diameters, the straps might be as long as 7 meters. This causes problems when disposing of the straps.
  • binding materials such as straps
  • the present invention provides an improved de-strapping arrangement.
  • a de-strapper 1 arrangement for cutting and disposing of a plurality of straps provided on and securing a coil of coilable material, comprises a pressure arrangement 2 adapted for maintaining the straps in position against the coil during a cutting operation, a cutting arrangement 3 adapted for maintaining the straps in position against the coil and for cutting the straps in a single motion. Additionally, the arrangement comprises a disposing arrangement 4 for removing the cut straps and disposing thereof.
  • Fig. 1 is a schematic illustration of a coil with straps
  • Fig. 2 is a schematic illustration of an embodiment of the present invention
  • Fig. 3 is a schematic illustration of a further embodiment of the present invention.
  • Figs. 4a-h is an illustration of the operation of a particular embodiment of an arrangement according to the present invention
  • Fig. 5 is a schematic illustration of an embodiment of the present invention. DETAILED DESCRIPTION
  • a coil of coilable material such as steel is provided with a plurality of straps.
  • the straps are typically arranged (see Fig. 1) circumferentially along the length of the axis of the coil to prevent the coil from uncoiling during transport. At some point in time, the straps need to be removed and disposed of. This is an operation that takes time and can involve a hazard to the operator.
  • the straps are typically made of some type of metal. After cutting, the strap can potentially recoil and result in a long strip of metal with sharp ends that needs to be disposed of.
  • One problem is that the strap might be trapped in surrounding machinery or objects; also, the strap is difficult to handle in any efficient way. For a typical coil, there are at least three straps that need to be cut and disposed off.
  • the present invention discloses an automated de-strapping arrangement for cutting and disposing of straps binding a coil.
  • the de-strapping arrangement enables cutting all straps in a single operation, without the need of locating each individual strap prior to cutting. Subsequently, each cut strap is compacted and disposed in a space saving manner, typically coiled into individual tight coils.
  • Fig. 2 a basic schematic principle of operation of an embodiment of a de-strapper arrangement 1 according to the present invention will be described.
  • the de-strapper arrangement 1 comprises a pressure arrangement 2 adapted for maintaining the straps (not shown) in position against the outer circumference of the coil, a cutting arrangement 3 adapted for maintaining the straps in position against the coil and for cutting the straps in a single operation, and a disposing 4 arrangement for removing the cut straps and disposing thereof.
  • the cutting arrangement 3 is adapted for performing said cutting motion along and in parallel with a central axis of the coil.
  • the de- strapper arrangement 1 is configured to extend along substantially the entire length of the coil, or at least far enough to engage all of the plurality of straps on the coil.
  • the de-strapper 1 is brought from a neutral position to an operating position to bring the pressure arrangement 2 and the cutting arrangement 3 into contact with the straps on outer surface of the coil. This is performed either simultaneously or sequentially.
  • the pressure arrangement 2 is adapted to enable engaging and feeding the cut straps to the disposing arrangement. This is preferably enabled by means of a difference in the friction between the coil and the straps, and the friction between the straps and the pressure arrangement 2.
  • the cutting motion i.e. cutting depth of the arrangement is configured based on the thickness of the straps, in order to prevent damage to the underlying coil.
  • the cutting motion since it is very difficult to prevent any damage at all, it is preferable to arrange the cutting motion such that the amount of damage is limited to as small area as possible. In essence, to reduce the amount of material that needs to be removed from the coil. Consequently, the coil is preferably oriented relative the de-strapper arrangement 1 such that the cutting operation is performed near the end of the coiled material, whereby only a short length of the coiled material needs to be discarded during a subsequent trimming operation.
  • the coil is arranged on well- known floor rollers or elevated rollers or supports, thus enabling rotating the coil to position the end of the coiled material in the proper position relative the de-strapper 1.
  • a pressure or holding roll is provided on a top surface of the coil. If no floor rollers are provided, some other positioning means have to be applied to proper position the end of the coil relative the de-strapper arrangement.
  • the pressure arrangement 2 is configured with two individual but connected rollers 2a, 2b.
  • the cutting arrangement 3 is configured as a guiding ruler 3a and a cutting blade 3b configured to move along the guiding ruler during a cutting operation.
  • the pressure, holding and disposing arrangements are all pivo tally arranged relative a common pivot point, indicated by x in Fig. 3.
  • a particular embodiment and the workings thereof will be described with reference to Fig. 4a-h.
  • Fig. 4a shows a coil of a coilable material, e.g. steel, provided on a rolling arrangement e.g. floor rollers, and a pressure roller mounted on top.
  • the coil additionally comprises a plurality of circumferentially arranged straps, not shown in the image.
  • the coil is further arranged such that the end of the coiled material is in a preferred starting position relative a de-strapper arrangement 1.
  • the de-strapper arrangement 1 illustrated in a neutral position, comprises a pressure arrangement 2 in the form of a pair of rollers 2a, 2b including a driven pressure roller 2a and a pressure roller 2b with a back stop (only allowing the pressure roller 2b to rotate in one direction), a cutting arrangement 3 in the form of a ruler or guiding means 3a in combination with a cutting blade 3b e.g. saw blade or similar.
  • the de-strapper arrangement 1 comprises a strap disposing unit 4 e.g. caliper rollers for disposing the cut straps.
  • the de-strapper 1 is pivotally arranged relative a pivot point, illustrated with a cross in the Fig. 4a.
  • the de-strapping arrangement 1 is arranged such that a cutting motion is enabled along and in parallel with the rotational axis of the coil.
  • the de-strapper 1 Upon activation of the de-strapper arrangement 1 according o the present invention, with reference to Fig. 4b, the de-strapper 1 is pivoted relative the pivot point in order to bring the ruler 3a and cutting blade 3b of the cutting arrangement 3 and the pair of pressure rollers 2a, 2b of the pressure arrangement 2 into contact with the plurality of straps and potentially also the surface of the coil.
  • the end of the coiled material has been oriented such that the ruler 3a and cutting blade 3b are in contact with the straps at a distance of D from the end of the coiled material.
  • the cutting blade 3b When the de- strapper 1 is in contact with the straps and coil, the cutting blade 3b is activated and moved along the length of the coil, guided by the ruler 3a and cutting any strap it intercepts.
  • the ruler 3a of the cutting arrangement 3 and the pressure rollers 2a, 2b of the pressure arrangement 2 together act to ensure that the end of the coiled material and the ends of the cut straps do not spring back
  • Fig. 4c When the cutting operation is finished, with reference to Fig. 4c, the cutting blade 3b is returned to a neutral or starting position along the ruler 3a.
  • the ruler 3a is maintained in contact with the straps to prevent them from moving.
  • the driven pressure roller 2a is activated and rotated such that an upper cut end of each strap is bent and fed out between the pressure rollers 2a, 2b.
  • the term upper cut end is used with reference to the orientation of the coil and de-strapper arrangement as illustrated in Fig, 4c.
  • the other pressure roller 2b prevents any other motion of the strap ends.
  • Fig. 4d shows the coil and de-strapper 1 where the upper cut ends of the straps have been fed out a distance between the two pressure rollers 2a, 2b.
  • An aspect of the pressure arrangement 2 concerns how to enable engaging and feeding the cut strap between the two rollers 2a, 2b.
  • the material of the driven pressure roller 2a is selected such that a friction force between the surface of the driven pressure roller 2a and the surfaces of the straps is larger than a corresponding friction force between the surfaces of the straps and the outer circumferential surface of the coiled material.
  • the coil is rotated such that the other end e.g. lower end (in correspondence with the use of the term upper cut end) of each strap e.g. the end engaged by the cutting arrangement is loosened from in between the coil and the floor rollers.
  • the straps are merely suspended over the top of the coil and in contact with the pressure rollers 2a, 2b.
  • the de-strapper 1 has been moved out of contact with the coil by pivoting relative the pivot point.
  • the pressure rollers 2a, 2b are moved into contact with each other to engage and feed the cut straps between each other.
  • the driven pressure roller 2a thus provides a rotational motion also to the other pressure roller 2b (as indicated by the arrows) .
  • the pressure roller on top of the coil is brought out from the coil to enable the cut straps to be freely moved across the top of the coil.
  • the pressure rollers 2a, 2b of the de-strapper arrangement 1 are operated until the ends of the cut straps are engaged by the disposing or coiler arrangement 4.
  • the pressure rollers 2a, 2b of the de- strapper 1 are separated or arranged to merely provide a guide to the cut straps, while the disposing arrangement 4 coils the straps into compact strap coils.
  • the disposing arrangement 4 is arranged to drop the compact strap coils into a container after the entire cut straps are coiled.
  • the coil is returned to its starting neutral position and is ready for further processing.
  • the de-strapper arrangement 1 is brought out of contact with the coil and into a neutral position, ready for a subsequent coil to be processed.
  • the disposing or coiler arrangement 4 can be replaced with some other arrangement suitable for disposing of the cut straps in an efficient way.
  • One potential solution is to utilize a further cutting arrangement, which cuts or clips the straps into small pieces during the feeding operation of Fig. 4f-4g.
  • the disposing arrangement 4 comprises a shredder for cutting the straps into smaller sections.
  • FIG. 5 A particular embodiment of a de-strapper arrangement 1 according to the present invention is illustrated in Fig. 5.
  • the de-strapper arrangement 1 is mounted on an elevated coil holder.
  • the embodiment indicates driving means D l , D2, D3 adapted to enable the various parts of the arrangement to operate and move relative each other and the coil.
  • These driving means can be configured to be pneumatic, hydro mechanical, electromechanical or equivalent. They can also comprise controlling means adapted for controlling the operation of the arrangement in dependence on at least a thickness of the straps.
  • the arrangement of the present disclosure is particularly suitable for handling of straps on large coils with a diameter of 1000-2200 mm. However, it is equally applicable to smaller or larger diameters as well.
  • the present invention enables de-strapping a coil in a single operation.
  • the arrangement enables handling and compacting the cut straps into compact coils that are easily disposed of.
  • the arrangement is described as being floor mounted. However, it is easily adapted to be mounted from the ceiling, a wall, or as an integrated part of a coiler or other machinery.
  • the rollers of the de-strapper arrangement 1 are preferably manufactured from a material that is able to provide enough surface friction relative the straps to enable feeding the cut straps. Potential selection of material of the rollers is rubber, polyurethane, fleece (3M, Wohler) etc.

Landscapes

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

Abstract

La présente invention concerne un agencement de dispositif permettant de dessangler des bobines (1), destiné à couper et disposer plusieurs sangles placées sur une bobine de matériau enroulable et fixant celle-ci, l'agencement comprenant un agencement de pression (2) adapté pour maintenir les sangles positionnées contre la bobine lors d'une opération de coupe, un agencement de coupe (3) adapté pour maintenir les sangles positionnées contre la bobine et pour couper les sangles d'un seul mouvement, et un agencement de placement (4) pour retirer les sangles coupées et les placer.
PCT/SE2009/051184 2009-10-19 2009-10-19 Agencement pour dessangler des bobines WO2011049489A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/SE2009/051184 WO2011049489A1 (fr) 2009-10-19 2009-10-19 Agencement pour dessangler des bobines
EP09850635.5A EP2490951A4 (fr) 2009-10-19 2009-10-19 Agencement pour dessangler des bobines
PCT/SE2010/051120 WO2011049518A1 (fr) 2009-10-19 2010-10-18 Agencement pour le dégrafage de bobines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2009/051184 WO2011049489A1 (fr) 2009-10-19 2009-10-19 Agencement pour dessangler des bobines

Publications (1)

Publication Number Publication Date
WO2011049489A1 true WO2011049489A1 (fr) 2011-04-28

Family

ID=43900524

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/SE2009/051184 WO2011049489A1 (fr) 2009-10-19 2009-10-19 Agencement pour dessangler des bobines
PCT/SE2010/051120 WO2011049518A1 (fr) 2009-10-19 2010-10-18 Agencement pour le dégrafage de bobines

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/SE2010/051120 WO2011049518A1 (fr) 2009-10-19 2010-10-18 Agencement pour le dégrafage de bobines

Country Status (2)

Country Link
EP (1) EP2490951A4 (fr)
WO (2) WO2011049489A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116986108A (zh) * 2023-09-25 2023-11-03 张家港扬子江冷轧板有限公司 一种带钢卷打包带自动拆除设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112678291A (zh) * 2020-12-30 2021-04-20 阳江宏旺实业有限公司 钢卷鞍座、钢卷拆捆装置及其使用方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2023532A (en) * 1978-06-14 1980-01-03 Demag Ag A Bundling Strap Removing Device
US4437223A (en) * 1982-03-05 1984-03-20 Mesta Machine Company Apparatus for debanding coiled strip
US6401582B1 (en) * 1999-01-20 2002-06-11 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Apparatus for removing binder straps from, for example, coils bound thereby

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2557701B2 (ja) * 1989-01-09 1996-11-27 石井工業株式会社 バンド切断装置
JPH0714726B2 (ja) * 1990-07-03 1995-02-22 株式会社イチコー バンド除去装置
FR2755097B1 (fr) * 1996-10-25 1999-01-15 Storm Outil de decerclage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2023532A (en) * 1978-06-14 1980-01-03 Demag Ag A Bundling Strap Removing Device
US4437223A (en) * 1982-03-05 1984-03-20 Mesta Machine Company Apparatus for debanding coiled strip
US6401582B1 (en) * 1999-01-20 2002-06-11 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Apparatus for removing binder straps from, for example, coils bound thereby

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2490951A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116986108A (zh) * 2023-09-25 2023-11-03 张家港扬子江冷轧板有限公司 一种带钢卷打包带自动拆除设备

Also Published As

Publication number Publication date
EP2490951A1 (fr) 2012-08-29
WO2011049518A1 (fr) 2011-04-28
EP2490951A4 (fr) 2015-07-01

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