EP2149408B2 - Sheet metal accumulator of the loop type with traction winding and corresponding method - Google Patents

Sheet metal accumulator of the loop type with traction winding and corresponding method Download PDF

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Publication number
EP2149408B2
EP2149408B2 EP09166379.9A EP09166379A EP2149408B2 EP 2149408 B2 EP2149408 B2 EP 2149408B2 EP 09166379 A EP09166379 A EP 09166379A EP 2149408 B2 EP2149408 B2 EP 2149408B2
Authority
EP
European Patent Office
Prior art keywords
sheet metal
turntable
accumulator
mobile
loops
Prior art date
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Active
Application number
EP09166379.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2149408A1 (en
EP2149408B1 (en
Inventor
Vittorio Travini
Riccardo Bosoni
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.)
Olimpia 80 SRL
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Olimpia 80 SRL
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Application filed by Olimpia 80 SRL filed Critical Olimpia 80 SRL
Priority to PL09166379T priority Critical patent/PL2149408T3/pl
Publication of EP2149408A1 publication Critical patent/EP2149408A1/en
Application granted granted Critical
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Publication of EP2149408B2 publication Critical patent/EP2149408B2/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C49/00—Devices for temporarily accumulating material

Definitions

  • the present invention refers to a sheet metal accumulator of the loop type with traction winding.
  • sheet metal accumulators which act as a reservoir to allow constant feeding of the production line situated downstream of the accumulator are well known to the art and normally used.
  • the accumulator is normally placed between at least one coil-carrying reel and the production line and accumulates a sufficient amount of sheet metal to allow an empty reel to be replaced with a reel bearing a coil of sheet metal and to join the sheet metal of the new coil with the "tail" of the sheet metal already unwound from the empty coil without having to stop the production line.
  • sheet metal accumulator Many types of sheet metal accumulator are known to the art, amongst which can be cited, purely by way of example, pit accumulators (free loop) and accumulators of the loop type with thrust-type winding (known as floops) which have the great drawback of not operating correctly if the sheet metal is (too) thin and/or is made of (overly) ductile material.
  • pit accumulators free loop
  • floops thrust-type winding
  • a sheet metal accumulator of the loop type with traction winding is able to overcome the aforementioned drawback.
  • Systems such as, for example, coil winders which accumulate sheet metal by traction are known to the art, but the Applicant is not aware of accumulators that accumulate sheet metal in loops by traction.
  • KR 1020040039921 discloses a sheet metal accumulator of the loop type which, to prevent the loosening of the loop(s) of sheet metal wound on the rolls of the rotatable turntable, provides strip laxity preventing means, comprising a plural links and a tightening roll, which acts on the outer surface of said sheet metal loop(s).
  • KR 2004 0039920 discloses a sheet metal accumulator of the loop type, comprising a mobile internal turntable and a fixed external one, having a plurality of winding roll and a lead roll, rotating forwards and backwards on the fixed turntable.
  • each winding roll is supported by means tilting it of a certain angle towards the centre of the turntable when the lead roll arrives.
  • KR 2004 0039920 further comprises means rotating each winding roll around its axis.
  • Object of the present invention is to produce a sheet metal accumulator of the loop type with traction winding that does not present the drawbacks and limitations previously described; this object is achieved by means of a sheet metal accumulator of the loop type with traction winding having the features set forth in claim 1.
  • the sheet metal accumulator of the loop type with traction winding is adapted to be placed between a source of sheet metal (preferably a coil-carrying reel) and a production line and comprises at least one inlet group, a pinch roll, an external mobile turntable, an internal fixed turntable coaxial with the mobile one, a helical path integral to the fixed turntable and adjustment means situated at the in-put and at the output of the accumulator.
  • a source of sheet metal preferably a coil-carrying reel
  • a production line comprises at least one inlet group, a pinch roll, an external mobile turntable, an internal fixed turntable coaxial with the mobile one, a helical path integral to the fixed turntable and adjustment means situated at the in-put and at the output of the accumulator.
  • the two turntables carry a plurality of rolls, suited to carry loops of sheet metal, which are mounted on swinging arms connected to one another by tie rods and moved by hydraulic or pneumatic means (or by other functionally equivalent hydraulic means), operation of which is managed by a logic unit that controls also adjustment means suited to control and adjust at least the tension of the sheet metal entering the accumulator.
  • the loops of sheet metal are traction wound on said rolls.
  • Figure 1 shows diagrammatically a front view of a sheet metal accumulator 1 produced according to the invention, which is carried by a metal structure 100 and which comprises at least one inlet group 2 suited to guide the sheet metal 20, a pinch roll 3, a mobile roll (dandy roll) 4 which controls the tension of the incoming sheet metal 20, a series of idle rolls 5, an external mobile turntable 6 carrying an idle traction roll 12, an internal fixed turntable 7 (coaxial with the turntable 6) carrying an idle transmission roll 13, a helical path 15 (seen better in Figure 2 ) integral with the fixed turntable 7 and a mobile roll (dandy roll) 18 which controls the tension of the sheet metal 20 exiting the accumulator 1.
  • the inlet group 2, the pinch roll 3, the mobile rolls (4, 18), the idle rolls (5, 12, 13) and the helical path 15 will not be described herein because they are known to a person skilled in the art.
  • the two turntables 6, 7 carry a plurality of rolls 8 suited to carry the loops of sheet metal traction wound on said rolls 8, which are mounted on swinging arms 9 connected to one another by tie rods 10 and driven by pistons 11 (or by other known hydraulic means; Figure 3 ), operation of which is managed by a logic unit which, preferably, also controls the pinch roll ( ⁇ 3) ⁇ and the external turntable 6.
  • the sheet metal 20 passes through the inlet group 2, the pinch roll 3, the mobile roll 4 and the idle rolls 5 to reach the traction roll 12 of the mobile turntable 6 which, rotating with the turntable 6, winds up the entering sheet metal 20 onto the loops of sheet metal present on the mobile turntable 6 and, at the same time, winds up onto the loops of sheet metal present on the fixed turntable 7 the sheet metal 20 coming from the loop of sheet metal in contact with the rolls 8 of the mobile turntable 6.
  • the sheet metal 20 coming from the fixed turntable 7 and from the helical path 15 passes beneath the mobile roll 18 before reaching the production line.
  • each hydraulic cylinder 11 acts on the pin of one of the swinging arms 9, mechanically coupled to the pins of the adjacent swinging arms 9 by means of the tie rods 10.
  • the mobile turntable 6 begins to turn in a counter-clockwise direction (in the embodiment described here) causing the input speed of the sheet metal 20 into the accumulator 1 to be greater than its output speed towards the production line.
  • the traction roll 12, integral with the turntable 6, draws the sheet metal 20 against the transmission roll-13 of the fixed turntable 7 ( Figure 5 ) and then onto the rolls 8 carried by the mobile turntable 6 and by the fixed turntable 7 ( Figure 6 ) and continues to rotate at this speed until the pre-set number of loops has been formed on the two turntables 6, 7.
  • the input speed of the sheet metal 20 into the accumulator 1 correlates with the rotation speed of the pinch roll 3 and that during formation of the loops on the two turntables 6, 7, the sheet metal 20 leaves the accumulator 1 at the speed required to feed the production line.
  • the mobile turntable 6 and the pinch roll 3 reduce their rotation speed so that when the mobile turntable 6 is at a standstill, the quantity of sheet metal ( ⁇ 20) ⁇ that enters into the accumulator 1 is equal to that exiting towards the production line.
  • the pinch roll 3 gradually slows down until it stops (blocking the incoming sheet metal 20) while the mobile turntable 6 starts rotating in a direction opposite to the previous one to pay off the loops formed on the turntables 6 and 7 and feed the production line with the sheet metal 20 stored in the accumulator 1.
  • pinch roll 3 blocks the incoming sheet metal 20 allows the sheet metal source to be replaced, joining another coil to the end of the incoming sheet metal 20.
  • the mobile turntable When there is no more sheet metal 20 stored in the accumulator 1, the mobile turntable gradually slows down until it stops and, if the inflow of sheet metal 20 to the inlet thereof has been restored, it switches (or can switch) to the stand-by condition ( Figure 4 ) and, subsequently, once again winds up (or can wind up) the sheet metal 20 onto the two turntables 6 and 7 ( Figures 5 and 6 ).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Advancing Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Winding Of Webs (AREA)
  • Winding Filamentary Materials (AREA)
  • Jib Cranes (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
EP09166379.9A 2008-07-29 2009-07-24 Sheet metal accumulator of the loop type with traction winding and corresponding method Active EP2149408B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09166379T PL2149408T3 (pl) 2008-07-29 2009-07-24 Zasobnik cienkiej blachy typu pętlowego z nawijaniem trakcyjnym i odpowiadający mu sposób nawijania

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI2008A001395A IT1396545B1 (it) 2008-07-29 2008-07-29 Accumulatore di lamiera a spire con avvolgimento a trazione

Publications (3)

Publication Number Publication Date
EP2149408A1 EP2149408A1 (en) 2010-02-03
EP2149408B1 EP2149408B1 (en) 2011-03-30
EP2149408B2 true EP2149408B2 (en) 2014-12-10

Family

ID=40751240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09166379.9A Active EP2149408B2 (en) 2008-07-29 2009-07-24 Sheet metal accumulator of the loop type with traction winding and corresponding method

Country Status (9)

Country Link
EP (1) EP2149408B2 (es)
CN (1) CN101638190B (es)
AT (1) ATE503596T1 (es)
BR (1) BRPI0902490A2 (es)
DE (1) DE602009000972D1 (es)
ES (1) ES2364163T5 (es)
IT (1) IT1396545B1 (es)
PL (1) PL2149408T3 (es)
RU (1) RU2009129105A (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103230948B (zh) * 2013-04-15 2015-01-28 中冶赛迪工程技术股份有限公司 一种废边卷取设备及其活套装置
CN103303721A (zh) * 2013-06-20 2013-09-18 江苏丰立精密制管有限公司 一种活套储料装置
CN104773571A (zh) * 2015-04-03 2015-07-15 江苏薪泽奇机械股份有限公司 一种立式储料活套
CN105170843B (zh) * 2015-08-28 2017-05-24 风范绿色建筑（常熟）有限公司 多道钢筋自动调直牵引机构

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5924527A (ja) * 1982-07-30 1984-02-08 Ishikawajima Harima Heavy Ind Co Ltd ストリツプ貯留装置
KR100313474B1 (ko) * 1999-04-13 2001-11-15 원웅재 로터리식 루퍼
KR100453373B1 (ko) * 2002-10-30 2004-10-20 주식회사 디엠씨테크 금속파이프성형용 로터리타입 루퍼
KR100480419B1 (ko) * 2002-11-05 2005-03-31 이상영 스트립의 저장 및 배출장치
KR100473194B1 (ko) * 2002-11-05 2005-03-08 이상영 스트립의 저장 및 배출장치
KR100599421B1 (ko) * 2004-09-07 2006-07-13 이상영 스트립의 저장 및 배출장치

Also Published As

Publication number Publication date
PL2149408T3 (pl) 2011-09-30
DE602009000972D1 (de) 2011-05-12
ES2364163T3 (es) 2011-08-26
ES2364163T5 (es) 2015-03-06
EP2149408A1 (en) 2010-02-03
EP2149408B1 (en) 2011-03-30
IT1396545B1 (it) 2012-12-14
CN101638190A (zh) 2010-02-03
BRPI0902490A2 (pt) 2010-05-18
ITMI20081395A1 (it) 2010-01-30
CN101638190B (zh) 2015-01-14
ATE503596T1 (de) 2011-04-15
RU2009129105A (ru) 2011-02-10

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