EP3670369A1 - Dispositif de bobinage - Google Patents

Dispositif de bobinage Download PDF

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Publication number
EP3670369A1
EP3670369A1 EP18213547.5A EP18213547A EP3670369A1 EP 3670369 A1 EP3670369 A1 EP 3670369A1 EP 18213547 A EP18213547 A EP 18213547A EP 3670369 A1 EP3670369 A1 EP 3670369A1
Authority
EP
European Patent Office
Prior art keywords
winding shaft
winding
finger elements
stripping
strapping wires
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.)
Withdrawn
Application number
EP18213547.5A
Other languages
German (de)
English (en)
Inventor
Mario Kaufmann
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.)
Fmw Foerderanlagen GmbH
Original Assignee
Fmw Foerderanlagen 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 Fmw Foerderanlagen GmbH filed Critical Fmw Foerderanlagen GmbH
Priority to EP18213547.5A priority Critical patent/EP3670369A1/fr
Priority to PCT/EP2019/085820 priority patent/WO2020127399A1/fr
Publication of EP3670369A1 publication Critical patent/EP3670369A1/fr
Withdrawn legal-status Critical Current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
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0025—Removing or cutting binding material, e.g. straps or bands

Definitions

  • the invention relates to a winding device for winding cut strapping wires on a square bale, with a winding shaft which has finger elements protruding from a lateral surface of the winding shaft for gripping and winding up the strapping wires on the lateral surface of the winding shaft.
  • Such a winding device is used in particular to remove the strapping wires from square bales from pieces of waste paper.
  • the cut strapping wires on the outside of the square bale are gripped by the finger elements and wound onto the outer surface of the winding shaft.
  • the wound strapping wires are then discharged so that the waste paper freed from the strapping wires can be processed further.
  • the object of the invention is to further develop the winding device of the type mentioned at the outset in such a way that the strapping wires are removed more reliably using structurally simple means.
  • the winding shaft has a first set of finger elements and a second set of finger elements, the first set of finger elements with respect to a central plane of the winding shaft in the axial direction towards one end face of the winding shaft and the second set of finger elements with respect to the central plane of the winding shaft in the axial direction Direction to the other end of the winding shaft is offset.
  • the invention provides a first and a second set, each with at least two finger elements, the first and second set each being arranged eccentrically on the winding shaft, that is to say moved from the center plane in the axial direction outward to the respective end face.
  • the invention is based in particular on the finding that the finger elements offset from the center cause a flatter pulling angle of the strapping wires in the corner regions of the square bale, since the finger elements engage closer to the two corner regions between the top side and the side surfaces. This reduces the risk of the strapping wire tearing off while being pulled off and wound onto the winding shaft.
  • additional possibilities are created to capture the strapping wires on the square bale. This is particularly advantageous when the square bales are brought to the wrapping device in a position inclined to the transport direction.
  • the axial distance between the center plane and the first or second set of finger elements is in relation to the total length of the winding shaft for one preferred embodiment between 1/20 and 1/2, in particular between 1/10 and 1/4.
  • This design also has the advantage that the deflection angle of the strapping wire when pulling off is small enough that undesired tearing of the strapping wire is reliably prevented.
  • the first set and the second set each have at least two, preferably three, finger elements spaced apart from one another in the circumferential direction of the winding shaft.
  • the first and second sets preferably each have three finger elements at regular angular intervals.
  • the finger elements can be transferred between an engagement position protruding from the outer surface of the winding shaft for gripping and winding up the strapping wires and a stripping position withdrawn under the outer surface of the winding shaft for stripping the strapping wires from the outer surface of the winding shaft. Accordingly, after winding the strapping wire onto the winding shaft, the first and second set of finger elements can be placed under the outer surface of the winding shaft, i.e. the envelope of the winding shaft, which is circular in cross section, is lowered, which enables stripping of the wound strapping wire from the winding shaft.
  • the winding shaft can have a ribbed outer surface.
  • the finger elements in the engagement position are more than 45.5 mm, preferably more than 50 mm, in particular more than 55 mm, for example essentially 60 mm, from the lateral surface of the Protrude winding shaft.
  • a stripping device is provided for stripping the strapping wires from the outer surface of the winding shaft in the stripping position of the finger elements. In this way, the strapping wires can be rejected before the waste paper is further processed after the square bale has been dissolved.
  • the stripping device has a stripping ring and a linear drive for displacing the stripping ring along the outer surface of the winding shaft.
  • the stripping ring can thus be guided in the axial direction along the outside of the winding shaft in order to strip the strapping wire from the winding shaft.
  • Fig. 1 shows schematically a device 1 for cutting and removing strapping wires 2 from one wrapped therewith Square bale 3 (cf. Fig. 2 , 3rd ).
  • the device 1 has a transport device 4 with a conveyor belt 5 for transporting the square bales 3 in the conveying direction 6.
  • a cutting device 7 (cf. Fig. 4 ) provided with a rotating cutting knife 8 for cutting open the strapping wires 2 on the underside of the square bale 3 (cf. Fig. 4 ).
  • a winding device 9 for winding and discharging the strapping wires 2 is arranged after the transport device 4 and the cutting device 7.
  • the square bales 3 are fed to a further processing device 10 for further processing of the waste paper after the square bales 3 have been dissolved.
  • the further processing of the waste paper is well known in the prior art, so that an explanation in this regard is dispensed with.
  • the winding shaft 11 is rotated with the finger elements 13, the finger elements 13 penetrating into the square bale 3 and gripping the strapping wire 2 by the rotation and winding it onto the outer surface 12 of the winding shaft 11.
  • the first set 13a of finger elements 13 is offset with respect to a central plane 15 perpendicular to the axis of rotation 14 of the winding shaft 11 in the middle between the opposite end faces 16 of the winding shaft 11 in the axial direction (ie in the direction of the axis of rotation 14) outwards (cf. Fig. 3 ).
  • the winding device 9 also has a pressure flap 17 for pressing the strapping wire 2 against the outer surface 12 of the winding shaft 11 in order to compact the strapping wires 2.
  • the pressure flap 17 is adjustable by means of a drive 18.
  • the first set 13a and the second set 13b each have exactly three finger elements 13 spaced apart from one another in the circumferential direction of the winding shaft 11 in the embodiment variant shown.
  • the finger elements 13 are movable between an engagement position protruding from the outer surface 12 of the winding shaft 11 for gripping and winding up the strapping wires and a stripping position retracted under the outer surface 12 of the winding shaft 11 for stripping the strapping wires from the outer surface of the winding shaft.
  • the finger elements 13 in the embodiment shown have serrations 19 at the inner end which mesh with a gear wheel 20. By rotating the gear 20, the finger elements 13 can be moved from the engagement to the stripping position and vice versa.
  • the finger elements 13 project in the engagement position essentially 60 mm from the lateral surface 12 of the winding shaft 11.
  • the winding device 9 also has a stripping device 21 for stripping the wound strapping wires 2 from the outer surface 12 of the winding shaft 11 in the stripping position of the finger elements 13.
  • the stripping device 21 has a stripping ring 22 and a linear drive 23 for displacing the stripping ring 22 along the lateral surface 12 of the winding shaft 11.
  • the linear drive 23 By actuating the linear drive 23 in the axial direction of the winding shaft 11, cf. Arrow 24 in Fig. 2 , the wound strapping wire 2 through the wiper ring 22 stripped from the winding shaft 11.
  • Fig. 6 shows the outwardly displaced state of the stripping ring 22, in which the wound strapping wire 2 is released from the winding shaft 11 and can be discharged in the direction of arrow 27.
  • Fig. 3 shows schematically the grip of a strapping wire 2, which is wrapped around the square bale 3, for example from pieces of waste paper. Due to the finger elements 13 moved outwards from the center, a comparatively flat pull-off angle a is achieved at the corner regions 25 of the square bale 3, as a result of which the strapping wire 2 is less frequently torn off when pulling off and winding up. The metal content in the further processing device 10 can thus be significantly reduced.
  • Fig. 4 schematically shows the approach of square bales 3 of different sizes along the transport device 4 to the winding shaft 11. Because of the different width of the square bales 3, a sufficient width of the conveyor belt 5 must be ensured.
  • the off-center finger elements 13 on the winding shaft 11 make it easier to grasp the strapping wires 2 on such square bales 3, in particular if they have been placed on the conveyor belt 5 in an inclined position relative to the conveying direction. This is illustrated by the tracks 26 of the finger elements 13 with respect to the square bales 3.
EP18213547.5A 2018-12-18 2018-12-18 Dispositif de bobinage Withdrawn EP3670369A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18213547.5A EP3670369A1 (fr) 2018-12-18 2018-12-18 Dispositif de bobinage
PCT/EP2019/085820 WO2020127399A1 (fr) 2018-12-18 2019-12-18 Dispositif d'enroulement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18213547.5A EP3670369A1 (fr) 2018-12-18 2018-12-18 Dispositif de bobinage

Publications (1)

Publication Number Publication Date
EP3670369A1 true EP3670369A1 (fr) 2020-06-24

Family

ID=64744690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18213547.5A Withdrawn EP3670369A1 (fr) 2018-12-18 2018-12-18 Dispositif de bobinage

Country Status (2)

Country Link
EP (1) EP3670369A1 (fr)
WO (1) WO2020127399A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022229162A1 (fr) * 2021-04-27 2022-11-03 ReTec Miljø ApS Système servant à retirer le fil de paquetage de balles

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1175829A2 (fr) * 2000-07-27 2002-01-30 Lely Welger Maschinenfabrik GmbH Dispositif pour enlever l'emballage d'une balle à produits agricoles
EP2759482A1 (fr) * 2013-01-25 2014-07-30 BRT Recycling Technologie GmbH Dispositif d'élimination des matériaux liants sur des emballages
FR3007241A1 (fr) * 2013-06-24 2014-12-26 Gilbert Lucas Dispositif pour couper et enlever les ficelles, filets et films des boules rondes de paille, foin et enrubannage a adapter sur les desileuses pailleuses

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1175829A2 (fr) * 2000-07-27 2002-01-30 Lely Welger Maschinenfabrik GmbH Dispositif pour enlever l'emballage d'une balle à produits agricoles
EP2759482A1 (fr) * 2013-01-25 2014-07-30 BRT Recycling Technologie GmbH Dispositif d'élimination des matériaux liants sur des emballages
FR3007241A1 (fr) * 2013-06-24 2014-12-26 Gilbert Lucas Dispositif pour couper et enlever les ficelles, filets et films des boules rondes de paille, foin et enrubannage a adapter sur les desileuses pailleuses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022229162A1 (fr) * 2021-04-27 2022-11-03 ReTec Miljø ApS Système servant à retirer le fil de paquetage de balles

Also Published As

Publication number Publication date
WO2020127399A1 (fr) 2020-06-25

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