EP1157757A1 - Dorn zum Wickeln und/oder Abwickeln von Bunden - Google Patents

Dorn zum Wickeln und/oder Abwickeln von Bunden Download PDF

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Publication number
EP1157757A1
EP1157757A1 EP00490018A EP00490018A EP1157757A1 EP 1157757 A1 EP1157757 A1 EP 1157757A1 EP 00490018 A EP00490018 A EP 00490018A EP 00490018 A EP00490018 A EP 00490018A EP 1157757 A1 EP1157757 A1 EP 1157757A1
Authority
EP
European Patent Office
Prior art keywords
expansion
configuration
cylinder
winding
gripping means
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Withdrawn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
EP00490018A
Other languages
English (en)
French (fr)
Inventor
Stanislas Plaskota
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.)
D M S
Original Assignee
D M S
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 D M S filed Critical D M S
Priority to EP00490018A priority Critical patent/EP1157757A1/de
Publication of EP1157757A1 publication Critical patent/EP1157757A1/de
Withdrawn legal-status Critical Current

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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
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/28—Drums or other coil-holders
    • B21C47/30—Drums or other coil-holders expansible or contractible

Definitions

  • the invention relates to a mandrel intended to be driven by reversible way for winding / unwinding coils and a winding / unwinding device for reels comprising a drum provided with such a mandrel.
  • the sheet metal strips are driven in successive passes in a back-and-forth movement between the entrance and exit of the rolling mill. They are wound / unwound so continues in coils upstream and downstream.
  • the shims are, if necessary, removed to allow a winding with standard dimensions during other passes.
  • the object of the present invention is to provide a mandrel and a winding / unwinding device for coils which overcomes the aforementioned drawbacks and make it possible to avoid stalling of the coils on the mandrel.
  • Another object of the present invention is to provide a mandrel and a winding / unwinding device for coils, the configurations can be adapted to different modes of use desired.
  • Another object of the present invention is to provide a mandrel and a winding / unwinding device in particular for coils of steel sheets which can withstand high weight and strong pull-ups.
  • the invention relates to a mandrel intended to be driven by reversible way for winding / unwinding coils, especially steel sheets, comprising gripping means operating by expansion, said gripping means being provided with double expansion of so as to be able to be in at least three preset configurations A, B, C, different, means for controlling the expansion of said means of grip and mechanical stop means to ensure stability of said configurations, characterized in that said means for control the expansion of said gripping means are provided with a jack and have two coaxial pistons cooperating with each other between stops provided at the end of each of their travel to allow passage gripping means in each of said configurations A, B, C.
  • the invention also relates to a winding device / unwinding for coils, in particular of sheet steel, comprising a drum provided with a mandrel as described above, said drum being provided suitable for being reversibly driven for winding / unwinding of said coils.
  • the invention relates to a mandrel for sheet metal coils, especially steel. However, although more specifically intended for such applications, it can also be used with any other type of sheets in coils.
  • Said mandrel is intended to be reversibly driven for both winding and unwinding the coils, for example rotation around its longitudinal axis.
  • the mandrel 1 conforms to the invention comprises gripping means 2 operating by expansion, especially radial.
  • gripping means 2 operating by expansion, especially radial.
  • These are naturally reversible, i.e. both capable of going from a retracted configuration to a expanding configuration as the opposite as shown by the arrows identified 3. Gripping takes place, for example, by expansion.
  • said gripping means 3 are provided double expansion so that it can be in three configurations different.
  • mandrel 1 according to the invention comprises mechanical stop means 4 intended to ensure the stability of said configurations, this for each of them.
  • the fully retracted configuration allows, in particular, the introduction / removal of a coil wound on the mandrel 1.
  • the configuration nominal allows, in particular, the winding of a coil with a section internal with standardized dimensions. This is, for example, a diameter of 610 mm.
  • the maximum expansion configuration allows, in particular, to compensate for the existing play when using a reel whose internal section has dimensions greater than the dimensions standardized.
  • said means 5 for control the expansion of the gripping means 2 are provided with a jack and have, in particular, two pistons 6, 7 coaxial cooperating with each other between stops 8, 9, 10, 11 provided at the end of each of their travel to allow the passage of the gripping means 2 in each of said configurations.
  • Said pistons 6, 7 are provided, for example, in series.
  • said expansion piston 6 has a stroke, identified c1, which allows the transition from the retracted configuration A to the configuration maximum expansion C. Stroke c1 takes place, for example, between the two stops 8, 9.
  • the second piston 7, said to be limiting, makes it possible in one of its stop positions, for example, to reduce the stroke of said piston expansion 6 so as to prevent the expansion of said means from grip 2 beyond nominal configuration B.
  • Such blocking is obtained, in particular, by abutment of said piston expansion 6 against said limiting piston 7.
  • the latter has, by example, a stroke c2 between the two stops 10, 11.
  • Said cylinder means 5 optionally comprise a single cylinder 12 in which said expansion 6 and limitation 7 pistons slide along the longitudinal axis 13 of said cylinder 12.
  • Said cylinder 12 has, for example, a protuberance internal annular ring 14 on either side of which said pistons slide expansion 6 and limitation 7.
  • the stops 8, 9 between which the stroke c1 of the expansion piston 6 consist, for example, respectively of a longitudinal ends 15 of the cylinder 12 and of the facing flank 16 of said annular protuberance 14.
  • the stops 10, 11 between which takes place the stroke C2 of the limiting piston 7, consist respectively, in particular, on the other side 17 of the annular protuberance 14 and the other longitudinal end 18 of the cylinder 12.
  • Said cylinder 12 has, for example, at least three intake chambers 19 of the control fluid.
  • said pistons 6, 7 are aligned on the longitudinal axis 13 of the cylinder 12.
  • the latter comprises three chambers, called admission chambers 19, provided one after the other others in the direction of said longitudinal axis 12 of the cylinder, the chamber located in the middle of the other two being located at said level annular protuberance 14.
  • Said cylinder 12 is provided with conduits 20 ensuring the circulation of the control fluid in each of the chambers 19. They are provided, for example, at each of its ends 15, 18 and / or said annular protrusion 14. Said cylinder means 5 may have both a hydraulic and a pneumatic operating mode.
  • said cylinder 12 comprises, by example, a one-piece cylindrical body 30 provided, in the mass, with said annular protuberance 14. Said body 30 is closed at its two ends by a cover 31, 32, each of these also being in one piece and defining one of the ends 15, 18 of said cylinder.
  • At least one light 33 is provided which opens radially through said body 30, at said annular protuberance 14, and at at least one light 34 opening transversely through one of said 32 covers, to define the conduits 20 ensuring the circulation of the order in rooms 19, for the centrally located one and the one located opposite said cover 32.
  • the conduit 20 corresponding may be located in the cover 31 located opposite. he will eventually be bent.
  • the supply of the conduits 20 and, in particular, of the said lights 33, 34, is provided by a circuit 35 external to said cylinder 12.
  • Said body 30 and one of said covers 31, 32 may still consist of a single block.
  • said gripping means 2 consist, in particular, of at least two jaws 21, able to move apart from one another by sliding on at least one inclined plane 25, opposite their gripping face 23.
  • Said gripping means 2 thus comprise possibly a shaft 24 having at least one zone in the form of pyramid, possibly truncated to n-sides, and n-said jaws 21, provided sliding on the sides of said pyramid.
  • These are, for example, of a truncated pyramid with a square base.
  • Said jaws 21 constitute, in particular, sectors independent of a fictitious tubular element which would be fitted onto said shaft 24.
  • the shape of the outer surface of said fictitious tubular element corresponds, for example, to that of the internal section of the coils intended to be mounted on said mandrel 1.
  • the shape of its internal surface 22 corresponds, in a complementary manner, to that defined by the sides 25 of the truncated pyramid-shaped zone or zones of the tree 24.
  • Said jaws 21 are provided sliding on the shaft 24, in particular, by means of rails. Their outer face is possibly treated or coated to facilitate the maintenance of the coils on the gripping means 2.
  • a slot introduction 26 may be provided in one of the jaws 21. It has for object of allowing the possible blocking of the end of the first turn of the coil intended to be mounted on said mandrel 1, in particular during the winding.
  • said shaft 24 has several truncated pyramidal zones provided axially one after the other others.
  • Said shaft 24 of the gripping means 2 and said piston expansion 6 of said cylinder means 5 are, for example, aligned along the axis 13, constituting the longitudinal axis of the mandrel 1.
  • said shaft 24 and said expansion piston 6 are in one piece. According to another embodiment, they are subject to each other, directly or indirectly. Said means to cylinder 5 are then self-supporting.
  • the invention also relates to a winding device / unwinding for coils of sheets, in particular of steel.
  • the winding / unwinding device in accordance with the invention comprises a drum 27 provided with a mandrel 1 as described more high.
  • said drum 27 is provided capable of being driven reversibly for the winding of coils 26, by rotation about its longitudinal axis, for example coinciding with the axis 13 of the mandrel 1.
  • the coils 26 are wound on the mandrel 1 while being held by said means of grip 2. It is the same during the course.
  • the winding / unwinding is carried out, for example, by driving the coil by externally provided motor means, especially at the rolling mill in which the strip of material which constitutes the coils 26 is intended to pass. It can also be performed, for example, by direct drive of the drum 27.
  • the latter is mounted, in particular, on ball bearing 28. It consists, for example, of a tubular element having, at one of its ends with said gripping means 2 and at the other with the jack means 5. Said shaft 24 is provided sliding inside said tubular element constituting the drum 27.
  • the gripping of the coils 26 is performed, for example, directly at their first turn.
  • an intermediate winding support can be used.
  • Such a winding / unwinding device thus allows make a first pass in the rolling mill with a configuration maximum expansion to ensure the maintenance of the coil 26 if it has was previously rolled up with an internal section greater than the standard.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Unwinding Webs (AREA)
EP00490018A 2000-05-24 2000-05-24 Dorn zum Wickeln und/oder Abwickeln von Bunden Withdrawn EP1157757A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00490018A EP1157757A1 (de) 2000-05-24 2000-05-24 Dorn zum Wickeln und/oder Abwickeln von Bunden

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00490018A EP1157757A1 (de) 2000-05-24 2000-05-24 Dorn zum Wickeln und/oder Abwickeln von Bunden

Publications (1)

Publication Number Publication Date
EP1157757A1 true EP1157757A1 (de) 2001-11-28

Family

ID=8174293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00490018A Withdrawn EP1157757A1 (de) 2000-05-24 2000-05-24 Dorn zum Wickeln und/oder Abwickeln von Bunden

Country Status (1)

Country Link
EP (1) EP1157757A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014212668A1 (de) 2014-05-26 2015-11-26 Sms Group Gmbh Vorrichtung zum Wickeln eines Bandmaterials zu einem Coil

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1956906A (en) * 1932-08-16 1934-05-01 Treadwell Engineering Company Machine for coiling strips
US4352470A (en) * 1981-03-27 1982-10-05 Textron, Inc. Combined payoff and winder for strip rolling mills

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1956906A (en) * 1932-08-16 1934-05-01 Treadwell Engineering Company Machine for coiling strips
US4352470A (en) * 1981-03-27 1982-10-05 Textron, Inc. Combined payoff and winder for strip rolling mills

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014212668A1 (de) 2014-05-26 2015-11-26 Sms Group Gmbh Vorrichtung zum Wickeln eines Bandmaterials zu einem Coil
KR101809921B1 (ko) 2014-05-26 2017-12-20 에스엠에스 그룹 게엠베하 코일로 스트립 재료의 권취 장치
US9937543B2 (en) 2014-05-26 2018-04-10 Sms Group Gmbh Device for winding a strip material into a coil

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