EP1270484A2 - Dérouleur de fil métallique de bobines à forte inertie - Google Patents

Dérouleur de fil métallique de bobines à forte inertie Download PDF

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Publication number
EP1270484A2
EP1270484A2 EP02010297A EP02010297A EP1270484A2 EP 1270484 A2 EP1270484 A2 EP 1270484A2 EP 02010297 A EP02010297 A EP 02010297A EP 02010297 A EP02010297 A EP 02010297A EP 1270484 A2 EP1270484 A2 EP 1270484A2
Authority
EP
European Patent Office
Prior art keywords
wire
pulley
reel
arm
frame
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Withdrawn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
EP02010297A
Other languages
German (de)
English (en)
Other versions
EP1270484A3 (fr
Inventor
Renzo Riedo
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.)
Rce Srl
Original Assignee
Rce Srl
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 Rce Srl filed Critical Rce Srl
Publication of EP1270484A2 publication Critical patent/EP1270484A2/fr
Publication of EP1270484A3 publication Critical patent/EP1270484A3/fr
Withdrawn legal-status Critical Current

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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
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/36—Floating elements compensating for irregularities in supply or take-up of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/18—Methods or apparatus in which packages rotate
    • B65H49/20—Package-supporting devices
    • B65H49/28—Turntables, i.e. package resting on a table
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/18—Guides for filamentary materials; Supports therefor mounted to facilitate unwinding of material from packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • B65H63/036—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials characterised by the combination of the detecting or sensing elements with other devices, e.g. stopping devices for material advancing or winding mechanism

Definitions

  • the present invention relates to an apparatus for unwinding wire from reels with high inertia.
  • the wire is unwound by using traction units substantially constituted by one or more pairs of motorized rollers arranged so that their cylindrical surfaces face each other.
  • the inertia of the reel in fact subjects the wire to intense traction stresses during the starting transients of the rotation of said reel.
  • the aim of the present invention is to provide an apparatus for unwinding wire from reels with high inertia that solves in an optimum manner the above-mentioned problem, amply protecting the wire against damage and/or breakage.
  • an object of the present invention is to provide an apparatus that is constructively simple but at the same time strong and flexible in terms of type and size of the reel and wire being handled.
  • Another object of the present invention is to provide an apparatus that is capable of managing in an optimum manner even continuous variations in the wire feed demand, with a consequent need for dynamic compensation of the wire unwinding speed.
  • Another object of the present invention is to provide an apparatus that can be manufactured with known technologies and systems.
  • an apparatus for unwinding wire from reels with high inertia characterized in that it comprises, on a frame that surrounds a fixed supporting base for a reel, an unwinding assembly that is connected to a wire tension compensation assembly, which is in turn associated with elastic contrast means, said unwinding assembly comprising at least one arm that is rotatably associated with said frame with a rotation axis that is parallel to the unwinding axis of said reel, and on which guiding elements are pivoted which are suitable to form an exit path for the wire toward the feed after passing through said compensation assembly, said compensation assembly comprising at least one first pulley that is translationally fixed with respect to said frame and a second pulley that is translationally movable with respect to said first pulley, said pulleys forming as a whole a multiple hoist structure, said second pulley being associated with said elastic contrast means.
  • an apparatus for unwinding wire from reels with high inertia is generally designated by the reference numeral 10.
  • the apparatus 10 comprises, on a frame 11 that surrounds a fixed supporting base 12 with a vertical axis for a reel 13, an unwinding assembly 14 that is connected to an assembly 15 for compensating the tension of the wire 16, which is in turn associated with elastic contrast means 17.
  • the unwinding assembly 14 comprises an arm 18 that is rotatably associated with the frame 11, with a rotation axis that is parallel to the unwinding axis of the reel 13, and on which guiding elements, described in detail hereinafter, are pivoted; said guiding elements are suitable to form an exit path for the wire 16 toward the feed, after passing through the compensation assembly 15.
  • the compensation assembly comprises a first pulley 19, which is fixed to the frame 11, and a second pulley 20, which is translationally movable with respect to the first pulley 19.
  • the pulleys 19 and 20 form, as a whole, a multiple hoist-like compensation structure.
  • the second pulley 20 is associated with the elastic contrast means 17.
  • the elastic contrast means 17 comprise, in this case, two elastic elements 21 with a base that is fixed on the frame 11 and ends 22 that are connected to brackets 23 that are fixed to a slider 24 for supporting rollers 25 that are in contact with said second movable pulley 20 so as to form tensioning elements and elements for contrasting the exit of the wire 16.
  • the elastic elements 21 are constituted by a corresponding number of helical springs.
  • the second pulley 20 is slidingly associated with a straight vertical splined guide 26, which is fixed to the frame 11; the first pulley 19 is pivoted to the upper end of said guide.
  • the arm 18 is substantially L-shaped and supports, at a free end 27 that rotates with a path that is coaxial to the reel 13, a first guiding element 28 for guiding the wire toward a second guiding element 29, which is arranged at the corner region of the arm 18.
  • the second guiding element 29 guides the wire 16 toward a third guiding element 30, which is arranged at the rotation axis and fulcrum of the arm 18, which substantially coincides with the axis of the reel 13.
  • the third guiding element 30 in turn forms a guide for the wire 16 for a fourth guiding element 31 that lies above it and is meant to guide the wire toward the compensation assembly 15.
  • the portion of wire stretched between the third guiding element 30 and the fourth guiding element 31 is coaxial to the reel 13.
  • the arm 18 is constituted by two parallel rod-like elements 32, which are mutually connected by cross-members 33 and rotatably support the axles of said guiding elements.
  • Eyes 34 suitable to prevent the escape of the wire 16 from its path, are also associated with the arm 18.
  • the frame 11 has three feet, with a supporting portal 35 for the arm 18.
  • the guide 26 is further supported at one side of the portal 35.
  • the operation of the apparatus 10 is as follows: when the wire 16 is requested at the feed, the traction imparted to the wire induces the unwinding rotation of the arm 18 and the simultaneous lifting traction of the second pulley 20.
  • the lifting of the pulley 20 is contrasted by the means 17, which tend to return the pulley to the lower inactive position.
  • the combined action of the means 17 with the many guiding actions of the pulleys 19 and 20 produces, in addition to compensation during transients for adapting the unwinding speed of the wire 16 on the part of the arm 18, a damping action in the tension of the wire 16, protecting its integrity.
  • a pneumatic brake 40 which is composed of a pneumatic cylinder 41 that is rigidly coupled to the portal 35 of the frame 11 and supports, at the end of its stem, a pad 42, made for example of Teflon, that acts by contrast on the surface of a plate-like element 43 that is rigidly coupled to the arm 18.
  • the brake 40 is associated with means for locking/releasing the brake (not shown in the figures), which are actuated by the presence or not of the wire to be unwound.
  • the brake release means are activated and the pneumatic cylinder 41 pushes the Teflon pad 42 onto the plate 43.
  • a further embodiment of the apparatus comprises, on the supporting base 12, a rotating plate 50 on which the reel 13 rests.
  • the apparatus according to the invention allows to solve in an optimum manner the mentioned technical problem without providing any independent motorization, at the same time amply protecting the wire from damage and/or breakage.
  • the apparatus according to the invention is constructively simple but at the same time strong and flexible in terms of type and size of the reel and wire being handled.
  • the apparatus according to the invention is capable of handling in an optimum manner even continuous variations in the demand to feed the wire, with consequent dynamic compensations of the wire unwinding speed.
  • the materials and the dimensions may be any according to requirements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
EP02010297A 2001-05-22 2002-05-21 Dérouleur de fil métallique de bobines à forte inertie Withdrawn EP1270484A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPD20010114 ITPD20010114A1 (it) 2001-05-22 2001-05-22 Attrezzatura per la sbobinatura di filo da aspi ad elevata inerzia.
ITPD20010114 2001-05-22

Publications (2)

Publication Number Publication Date
EP1270484A2 true EP1270484A2 (fr) 2003-01-02
EP1270484A3 EP1270484A3 (fr) 2003-07-23

Family

ID=11452355

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02010297A Withdrawn EP1270484A3 (fr) 2001-05-22 2002-05-21 Dérouleur de fil métallique de bobines à forte inertie

Country Status (2)

Country Link
EP (1) EP1270484A3 (fr)
IT (1) ITPD20010114A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104485790B (zh) * 2014-12-12 2017-03-29 遵义天义利威机电有限责任公司 一种能有效降低摩擦力的铜丝放线装置
CN107601159A (zh) * 2017-10-16 2018-01-19 无锡通用钢绳有限公司 一种钢丝绳的放绳装置
CN109911704A (zh) * 2019-02-28 2019-06-21 江苏斯德雷特通光光纤有限公司 一种用于光纤筛选工序防鞭打的保护装置
CN110759166A (zh) * 2019-10-29 2020-02-07 国网山东省电力公司聊城供电公司 一种可调速电力配网旁路作业用电缆架
CN110775720A (zh) * 2019-10-29 2020-02-11 国网山东省电力公司聊城供电公司 一种电力配网旁路作业用电缆架
CN112850328A (zh) * 2021-03-19 2021-05-28 路佃泉 一种绞纱柔性支撑轴向退绕装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118025885B (zh) * 2024-03-27 2026-02-27 惠州市惠力科技工业有限公司 一种放线架

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2643075A (en) * 1949-05-11 1953-06-23 Harry W Moore Wire unreeling device
US2809791A (en) * 1955-01-10 1957-10-15 Belden Mfg Co Continuous dead reel let-off with controlled tension
FR1591528A (fr) * 1968-11-14 1970-04-27
JPS6017739B2 (ja) * 1980-06-13 1985-05-07 東海電線株式会社 線条体繰出し装置
DE3429193C1 (de) * 1984-08-08 1986-02-20 Gustav 7290 Freudenstadt Memminger Vorrichtung zum Ab-oder Aufwickeln von fadenfoermigem Wickelgut,beispielsweise Garn
JPH06247623A (ja) * 1993-02-19 1994-09-06 Ishikiri Dengiyou Kk 線材引き出し用回転テーブル
JP2888127B2 (ja) * 1994-02-25 1999-05-10 住友電装株式会社 線材繰り出しサプライ装置
DE19544598C1 (de) * 1995-11-30 1997-01-30 Mobac Gmbh Vorrichtung zum Abwickeln von Wickelgut
JPH1160069A (ja) * 1997-08-21 1999-03-02 Sumitomo Wiring Syst Ltd 線条物の振動防止装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104485790B (zh) * 2014-12-12 2017-03-29 遵义天义利威机电有限责任公司 一种能有效降低摩擦力的铜丝放线装置
CN107601159A (zh) * 2017-10-16 2018-01-19 无锡通用钢绳有限公司 一种钢丝绳的放绳装置
CN109911704A (zh) * 2019-02-28 2019-06-21 江苏斯德雷特通光光纤有限公司 一种用于光纤筛选工序防鞭打的保护装置
CN109911704B (zh) * 2019-02-28 2021-04-20 江苏斯德雷特通光光纤有限公司 一种用于光纤筛选工序防鞭打的保护装置
CN110759166A (zh) * 2019-10-29 2020-02-07 国网山东省电力公司聊城供电公司 一种可调速电力配网旁路作业用电缆架
CN110775720A (zh) * 2019-10-29 2020-02-11 国网山东省电力公司聊城供电公司 一种电力配网旁路作业用电缆架
CN112850328A (zh) * 2021-03-19 2021-05-28 路佃泉 一种绞纱柔性支撑轴向退绕装置

Also Published As

Publication number Publication date
ITPD20010114A1 (it) 2002-11-22
EP1270484A3 (fr) 2003-07-23

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