US3666195A - Braking device for use in winding multiple strips upon a common mandrel - Google Patents

Braking device for use in winding multiple strips upon a common mandrel Download PDF

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Publication number
US3666195A
US3666195A US856928A US3666195DA US3666195A US 3666195 A US3666195 A US 3666195A US 856928 A US856928 A US 856928A US 3666195D A US3666195D A US 3666195DA US 3666195 A US3666195 A US 3666195A
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US
United States
Prior art keywords
rings
braking
strips
drum
pressure
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.)
Expired - Lifetime
Application number
US856928A
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English (en)
Inventor
Jean Gaudin
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.)
CREIL CONST MEC
SOC DE CONSTRUCTIONS MECANIQUES DE CREIL
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CREIL CONST MEC
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Publication date
Application filed by CREIL CONST MEC filed Critical CREIL CONST MEC
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Publication of US3666195A publication Critical patent/US3666195A/en
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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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/24—Registering, tensioning, smoothing or guiding webs longitudinally by fluid action, e.g. to retard the running web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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
    • B21C47/006—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only winding-up or winding-off several parallel metal bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
    • B65H23/10—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle acting on running web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/16—Details of driving
    • B65H2404/165—Details of driving braking roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B65H2555/11—Actuating means linear pneumatic, e.g. inflatable elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B65H2555/13—Actuating means linear magnetic, e.g. induction motors

Definitions

  • the stack of alternate braking and spacing rings is held under axial pressure to create a predetermined resilient pressure between the adjoining rings, and the strips to be wound are held in contact with the braking rings by permanent magnets embedded in or a ribbon of magnetic material affixed to the outer surfaces of the rings.
  • the present invention relates to tensioning devices for use in conjunction with the winding of multiple strips upon a common mandrel, to ensure a unifonn tightness of the coils wound upon said mandrel.
  • a main object of the invention is the provision of means to control the individual winding tensions of the strips, in such a manner as to keep the same at a substantially constant value throughout the winding operations and to result in coils of substantially uniform tightness or closeness of the winding turns.
  • the tensioning devices described by the aforementioned application comprise essentially a multiplicity of aligned and superposed braking rings rotatively mounted upon a drum forming a support therefore.
  • the rings the peripheral surfaces of which constitute a cylindrical surface for the application thereto and in frictional contact with a predeten-nined fractional arc-shaped bearing surface of the strips, are maintained under axial pressure by suitable resilient pressure-applying means, such as an inflatable toroidal chamber or a multiplicity of such chambers.
  • the braking rings alternate with spacing rings of lesser diameter mounted upon the drum or support for free axial movement but locked against relative rotation therewith.
  • the multiple strips applied to said bearing surface are maintained in frictional pressure engagement therewith, in such a manner as to enable rotation of the braking rings relative to the spacing rings, to individually control or readjust the winding tensions of the strips. Variations of the strip velocities are thus readily equalized by relative rotation or slippage of the respective braking rings being engaged by the strips.
  • the constant pressure between the strips and braking rings must be in excess of the stack pressure between the adjoining braking and spacing rings.
  • the strips are maintained in proper pressure engagement with the braking rings by means of pneumatic pressure by enclosing the upper part of the device adjacent to the strip bearing surface by a casing fitted with suitable inlet means for the admission of compressed air under s itable pressure.
  • auxiliary devices such as a source of compressed air, conduit and pressure control means, etc., requires constant supervision, to ensure proper strip pressure in relation to stack pressure, in the manner explained and pointed out.
  • an object of the present invention is the provision of a multiple strip tensioning device of the referred to type, wherein a substantially constant pressure upon the strips is applied by relatively simple means and practically no supervision or readjustment is required throughout substantially the entire life of the device.
  • a more specific object of the invention is the provision of strip pressure-applying means in a tensioning device of the referred to type requiring no auxiliary devices exterior of the tensioning device proper.
  • FIG. I is a side view, shown partly in section, of a multiple strip tensioning device of the type according to the abovementioned copending applications;
  • FIG. 2 is a fragmentary view, to an enlarged scale, showing the upper left hand portion of FIG. I modified in accordance with the improvement of the present invention
  • FIG. 3 is a section taken on line 3-3 ofFlG. 2;
  • FIG. 4 being similar to FIG. 3, shows a modification of the invention.
  • the present invention being especially applicable to the winding of strips consisting at least in part of magnetic material, involves generally the use of magnetic attraction between the strips and the bearing surface provided by the braking rings in a tensioning or braking device of the general type described herein.
  • the outer peripheral surfaces of the braking rings are suitably magnetized or fitted with permanent magnet means, such as in the form of a multiplicity of permanent magnet elements embedded in the rings, preferably during the casting thereof where the rings consist of a moldable material such as aluminum.
  • the rings may have affixed thereto sheets or ribbons of permanent magnetic material being suitably magnetized to attract the strips to be wound with sufficient pressure, or to prevent relative slippage between the rings and strips during the winding operations.
  • the rings themselves are of magnetic material, they are advantageously covered with a layer of nonmagnetic materialv
  • Other suitable means may be utilized to ensure adequate adherence by magnetic attraction between the strips and braking rings during the operation of the tensioning device, including the use of electromagnets, although a special winding or windings will be required in the latter case in conjunction with a slip-ring and brush contacting device for supplying operating current to the magnet winding or windings.
  • An advantage of this embodiment is the possibility of a close control of the magnetic attraction or pressure between the strips and braking rings, to ensure optimum operation conditions and to suit existing requirements, in a manner as will become further apparent by the description in reference to the drawing as follows.
  • the spacing rings 5 have projections 6 at their inner periphery, in the form of castellations or the like, which engage in corresponding longitudinal grooves 7 in the drum 1, whereby the rings 5 are rigid in rotation with the drum, in contrast to the freely rotating rings 4, the latter and the rings 5 being, however, axially slidable, for the purpose as will become apparant as the description proceeds.
  • the drum 1 forms or carries a fixed abutment 8 at one end and a head 9 at its other end, forming at its side facing the rings 4 an annular housing 10, FIG. 2, adapted to receive an inflatable toroidal chamber 11 supported by its outer periphery engaging the annular wall of the head 9 which bounds the housing 10 towards the outside and against the drum 1 by its internal periphery.
  • the interior face of the inflatable chamber 11 is applied against an annular spacing ring 13 disposed between said chamber and the first ring of the stack of rings 4.
  • Any suitable means may be provided to supply compressed air or a like pressurized fluid t0 the chamber ll.
  • any other means may be provided to produce a suitable stack pressure on the alternate braking rings 4 and spacing rings 5, such as a plurality of inflatable chambers, one for each adjacent pair of braking and spacing rings, as shown in the copending US. Pat. application Ser. No. 793,793, or any equivalent pressure-applying means.
  • the device is completed by an open-ended casing 17 enclosing the upper portion of the drum 1 and fitted with suitable inlets for the admission of compressed air into the chamber enclosed by said casing and drum.
  • the casing substantially engages the strips 15, 16, etc. being wound which pass on to the rings 4, in such a manner as to provide a fluid escape gap, the supply of compressed air being sufi'icient to compensate for the air escaping between the edge of the casing and the drum or strips applied thereto.
  • the introduction of compressed air into the chamber 11 causes the latter to resiliently apply the rings 4 against the rings 5 via the spacing member 13, at the same time as the compressed air contained in the casing 17 brings about the application of the strips 15, 16, against the arcshaped peripheral bearing surface of the rings 4 within said casing.
  • the pressure of inflation of the expanding chamber It may be adjustable, in an effort to vary the degree of closeness of the turns wound upon the common winding mandrel.
  • the strips must be applied against the periphery of the rings 4 by the effect of the compressed air in the casing 15 with a force exceeding the friction exerted between the braking rings 4 and spacing rings 5.
  • the drum 1 may be stationary or rotatively supported against a constant braking force, as more clearly described in the copending US. Pat. application Ser. No. 668,422.
  • the function of the braking device will be further understood from the following. Assuming, for arguments sake, the rings 4 to be connected at their peripheries, to form an integral cylindrical bearing surface for the strips 15, 16 friction braking is effected between the rings 4 and the rings 5 by the former being driven by the strips, provided a proper pressure to be applied to the outside of the strips by the compressed air in the casing 17. Assuming further all the strips to be fed to the device at the same initial velocity, the strips will then be braked or decelerated equally, determined by the braking force applied by the toroidal chamber 11, whereby to result in a predetermined uniform winding tension or tightness of the coils wound upon the common mandrel.
  • FIG. 24 adequate friction between the strips l5, l6 and the bearing surface provided by the rings 4 is produced by the direct embedment in the rings 4 of slightly curved and suitably spaced permanent magnet elements 20, FIGS. 2 and 3, being flush with the outer peripheral surfaces of the rings.
  • a ribbon of magnetic material 21 may be affixed to the peripheral cylindrical surface of each of the rings 4.
  • magnetization should be in the radial direction, to provide optimum attraction between the strips and the braking rings 4 in excess of the stack pressure between the latter and the spacing rings 5.
  • a spacing strip or layer of nonmagnetic material should be interposed between the strips and rings, to prevent sticking and other defects.
  • a tensioning device for use in the winding of a plurality of strips of magnetic material upon a common mandrel comprising in combination:
  • permanent magnet means distributed circumferentially on said breaking rings, to maintain a frictional pressure between said strips and said rings in excess of the stack pressure between the adjacent braking and spacing rings.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Toys (AREA)
  • Sorting Of Articles (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
US856928A 1969-01-23 1969-09-09 Braking device for use in winding multiple strips upon a common mandrel Expired - Lifetime US3666195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6901164A FR2029280A6 (enrdf_load_stackoverflow) 1969-01-23 1969-01-23

Publications (1)

Publication Number Publication Date
US3666195A true US3666195A (en) 1972-05-30

Family

ID=9028086

Family Applications (1)

Application Number Title Priority Date Filing Date
US856928A Expired - Lifetime US3666195A (en) 1969-01-23 1969-09-09 Braking device for use in winding multiple strips upon a common mandrel

Country Status (5)

Country Link
US (1) US3666195A (enrdf_load_stackoverflow)
BE (1) BE743534A (enrdf_load_stackoverflow)
ES (1) ES375649A1 (enrdf_load_stackoverflow)
FR (1) FR2029280A6 (enrdf_load_stackoverflow)
GB (1) GB1238619A (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841580A (en) * 1973-08-20 1974-10-15 Ungerer Irma Apparatus for braking a plurality of slit strips as the same are wound on a reel
US4347962A (en) * 1979-08-21 1982-09-07 Sundwiger Eisenhutte Maschinenfabrik Grah & Co. Brake roll for spanning several bands
EP0202608A1 (de) * 1985-05-18 1986-11-26 Hans-Jürgen Schildt Wickelwelle
US5265817A (en) * 1989-11-08 1993-11-30 Auxmet Braking device for continuous slitted bands
US5393008A (en) * 1991-09-18 1995-02-28 Valmet-Karlstad Reel-up with separately acting actuators for influencing linear pressure
US6599224B2 (en) * 2000-05-31 2003-07-29 Fimi Fabbrica Impianti Macchine Industriali S.P.A. Braking roller for systems for cutting metal bands into strips
DE102017120012B4 (de) * 2017-07-12 2024-07-11 Danieli Germany GmbH Bremsrolle und Bremsrollensystem zum Spannen von Bandstreifen aus Metall

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380686A (en) * 1965-06-25 1968-04-30 Creil Const Mec Apparatus for winding electrically conducting metal strips
US3386679A (en) * 1965-02-04 1968-06-04 Yoder Co Multiple strip tensioning device
US3433398A (en) * 1967-04-10 1969-03-18 Armco Steel Corp Magnetic bridle unit for winding steel strip
US3468494A (en) * 1966-09-20 1969-09-23 Creil Const Mec Braking device for use in the winding of a number of strips upon a common mandrel
US3517894A (en) * 1967-10-09 1970-06-30 Edwin A Pauls Device for creating tension in a travelling strip

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386679A (en) * 1965-02-04 1968-06-04 Yoder Co Multiple strip tensioning device
US3380686A (en) * 1965-06-25 1968-04-30 Creil Const Mec Apparatus for winding electrically conducting metal strips
US3468494A (en) * 1966-09-20 1969-09-23 Creil Const Mec Braking device for use in the winding of a number of strips upon a common mandrel
US3433398A (en) * 1967-04-10 1969-03-18 Armco Steel Corp Magnetic bridle unit for winding steel strip
US3517894A (en) * 1967-10-09 1970-06-30 Edwin A Pauls Device for creating tension in a travelling strip

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3841580A (en) * 1973-08-20 1974-10-15 Ungerer Irma Apparatus for braking a plurality of slit strips as the same are wound on a reel
US4347962A (en) * 1979-08-21 1982-09-07 Sundwiger Eisenhutte Maschinenfabrik Grah & Co. Brake roll for spanning several bands
EP0202608A1 (de) * 1985-05-18 1986-11-26 Hans-Jürgen Schildt Wickelwelle
US5265817A (en) * 1989-11-08 1993-11-30 Auxmet Braking device for continuous slitted bands
US5393008A (en) * 1991-09-18 1995-02-28 Valmet-Karlstad Reel-up with separately acting actuators for influencing linear pressure
US6599224B2 (en) * 2000-05-31 2003-07-29 Fimi Fabbrica Impianti Macchine Industriali S.P.A. Braking roller for systems for cutting metal bands into strips
DE102017120012B4 (de) * 2017-07-12 2024-07-11 Danieli Germany GmbH Bremsrolle und Bremsrollensystem zum Spannen von Bandstreifen aus Metall

Also Published As

Publication number Publication date
GB1238619A (enrdf_load_stackoverflow) 1971-07-07
FR2029280A6 (enrdf_load_stackoverflow) 1970-10-16
ES375649A1 (es) 1972-05-16
BE743534A (enrdf_load_stackoverflow) 1970-05-28

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