US3490628A - Coil handling apparatus - Google Patents

Coil handling apparatus Download PDF

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Publication number
US3490628A
US3490628A US584211A US3490628DA US3490628A US 3490628 A US3490628 A US 3490628A US 584211 A US584211 A US 584211A US 3490628D A US3490628D A US 3490628DA US 3490628 A US3490628 A US 3490628A
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United States
Prior art keywords
coil
coils
signal
relative
center
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Expired - Lifetime
Application number
US584211A
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English (en)
Inventor
James Richard Adair
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United Engineering and Foundry Co
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United Engineering and Foundry Co
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Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP.OF OH
Anticipated expiration legal-status Critical
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP. OH.
Expired - Lifetime 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, 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
    • B21C47/24—Transferring coils to or from winding apparatus or to or from operative position therein; Preventing uncoiling during transfer

Definitions

  • the disclosure relates to equipment for handling coils of metallic strip as they are brought to a rolling mill.
  • the handling equipment comprises a pivotal arm which includes a platform movable so as to position a coil brought to the platform relative to the center of the rolling mill.
  • the present invention relates to an apparatus for handling coils of metallic strip and, more particularly, to an apparatus employed to position coils of strip from one elevation to another, which also has the facility to center the coils relative to a given reference point.
  • a coil lowerator It is presently well known in handling and transferring coils of metallic strip material to employ a coil lowering device, sometimes referred to as a coil lowerator.
  • a processing unit such as a rolling mill or strip processing line
  • the coils to be presented to a processing unit are first placed on a conveyor which is located above the elevation at which the coils must be ultimately presented for feeding into the mill or line.
  • the coils are received by the lowerator.
  • there has been no convenient way to center the coils should the coils be 01f center relative to the mill or line. While allowances can be made for this oif center condition in non-automated equipment, it is mandatory in installations designed to automatically handle coils in an automated sequence that all coils be centered.
  • a conveyor for transferring coils to be processed in a rolling mill, a coil supporting platen arranged to receive a coil discharged from said conveyor, means for adjusting the lateral position of said platen and, hence, a coil supported thereby, means associated with said platen for positioning it into a coil discharge position for delivering a coil to said rolling mill.
  • the above embodiment of the present invention may include a pair of opposed probes associated with the coil conveyor, means connected to said probes for causing them to contact opposed sides of a coil, signal generating means associated with said probes for deriving a signal representative of the width and position of the coil relative to a fixed reference line, said signal being employed to laterally position the coil automatically relative to the reference line and the width information being employed to adjust the associated equipment, such as strip guides, etc.
  • FIGURE 1 is an elevational view of one form of apparatus embodying the present invention.
  • FIGURE 2 is a sectional view taken along lines lIII of FIGURE 1.
  • FIG- URE 1 With reference to the drawing and, particularly, FIG- URE 1, there is illustrated a number of coils C of strip which are transferable in a direction indicated by an arrow to the entry end of a rolling mill, not shown, by a driven conveyor 10 which is spaced some distance away from the.
  • the conveyor 10 includes a sprocket 11 around which there rotates in an usual fashion, chains 12, only one of which is shown, to where there are secured a plurality of coil saddles 13 for movement therewith. At the delivery end of the conveyor the coils are directly discharged onto a coil lowering device 14 which also serves as a centering and positioning apparatus.
  • This device includes a pair of pivotally mounted arms 15 that are secured at one end by a pivot shaft 16 to suitably arranged support structure. The other ends of the arms 15 are secured to a common plate that is connected to the rod end of a Vertically arranged piston cylinder assembly 17 which is employed to lower the coil lowering device 14 from a coil receiving position to a coil discharge position, the latter position being shown in phantom in FIGURE 1.
  • each of the arms 15 is provided with upwardly arranged projections 18- formed with bores 19 into which there is received guide rods 21.
  • Slidably positioned on the rods 21 are a pair of spaced, vertically arranged plates 22 that are secured together at their lower surfaces by a bracket 23 to which in turn there is connected a piston cylinder assembly 24.
  • a concave-shaped coil supporting platen 25 Secured to the upper surface of the plates 22 is a concave-shaped coil supporting platen 25 arranged to receive a coil from the conveyor 10 and discharge it onto a pair of rolls 26 and 27 that form part of the entry end coil feeding equipment. It will be appreciated that operation of the piston cylinder assembly 24 will horizontally shift the plates 22 on the rods 21 and, hence, the platen 25 will be positioned in a lateral direction.
  • each coil probing device 32 and 33 there is illustrated two identical coil probing devices 32 and 33 arranged on either side of a coil supported on the platen 25.
  • Each of the probing devices includes a coil probing arm 34 connected to a guide rod 35 which is slidably received in a frame 36 that is, in turn, mounted on a base 37.
  • Each coil probing arm 34 is connected to a piston cylinder assembly 38 for positioning the arm 34 towards and away from the vertical edge of the coil.
  • the displacements of the probing arms are detected and measured by electrical impulse counters 39 and by transmitters 41, each set being tied together mechanically by a shaft having a gear not shown, the gear meshing with gear teeth formed on the guide rod 35.
  • the pulse counters are designed to determine the relative position of the coil with respect to the center of the mill, or some other fixed reference point. This is accomplished by employing a control 44 that receives electrical signals of different magnitude from each of the counters 39 of the probing devices 32 and 33. These signals are compared to derive a corrective error signal employed to actuate the piston cylinder assembly 24 in the desired direction until the signals from each pulse counter are equal.
  • each coil is obtained by employing a control 45 which receives an electrical signal from each transmitter 41.
  • These signals represent the distance each probe arm 34 has been displaced from a fixed retracted position to the center of the device 14 in order to contact the coil.
  • an electrical signal 46 representing the width of the coil is provided.
  • This signal may be employed to allow for the automatic positioning of equipment employed to assist in handling the strip, such as the side guards of the coil uncoiler or the side guides of the rolling mill. It will be appreciated that the various elements of the system are well known in the art so that further comment on them is deemed unnecessary.
  • An apparatus for handling and transferring coils of strip-like material from a higher elevation to a lower elevation comprising:
  • a swingable frame arranged so that a portion thereof moves between the two elevations
  • a mounting means for said frame adapted to pivotally support the frame
  • a coil platform carried by said frame adapted to receive a coil delivered to said frame when in the higher elevational position and discharge a coil when the frame is in the lower elevational position;
  • control means receiving said signal and effecting operation of said means for moving said platform to center a coil relative to said data reference point.
  • said signal producing means includes a coil off-center detecting means arranged to engage a portion of a coil supported by said platform;
  • An apparatus including means for measuring the displacement of the detecting means from a predetermined retracted position to the coilengaging position and producing a signal proportional thereto.
  • each coil engaging means for measuring from a given reference point and producing a signal representative of the relative degree of movement of said coil engaging means when caused to engage a coil;
  • control means receiving said signals and comparparing them in a manner to produce said signal representing the amount of the off centered condition of a coil
  • said mounting means comprises a shaft arranged parallel to the axes of the coils being handled and transferred;
  • said frame comprising a pair of parallel arms rotatably carried by said shaft;
  • said means for effecting transverse movement of said platform being carried by said arms.
  • each coil engaging means for determining and producing separate signals representative of the degree of movement of the coil engaging means from a given reference point when caused to engage a coil;
  • control means for receiving said signals and comparing them in a manner to produce a signal representative of the width of the coil being engaged.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
US584211A 1965-10-25 1966-10-04 Coil handling apparatus Expired - Lifetime US3490628A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB45137/65A GB1155386A (en) 1965-10-25 1965-10-25 Coil Handling Apparatus

Publications (1)

Publication Number Publication Date
US3490628A true US3490628A (en) 1970-01-20

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Application Number Title Priority Date Filing Date
US584211A Expired - Lifetime US3490628A (en) 1965-10-25 1966-10-04 Coil handling apparatus

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US (1) US3490628A (enrdf_load_html_response)
DE (1) DE1456935A1 (enrdf_load_html_response)
FR (1) FR1505472A (enrdf_load_html_response)
GB (1) GB1155386A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037671A1 (de) * 1990-11-27 1992-06-04 Sundwiger Eisen Maschinen Positioniervorrichtung fuer auf eine haspeltrommel aufzusteckende bunde, insbesondere aus metallband

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1824201A (en) * 1930-01-27 1931-09-22 Eisenberg Isidor Lift-truck
US1870224A (en) * 1928-09-15 1932-08-09 Beloit Iron Works Apparatus for handling rolls
US2092540A (en) * 1935-05-14 1937-09-07 United Eng Foundry Co Coil unloader
US2848124A (en) * 1955-07-01 1958-08-19 Kaiser Aluminium Chem Corp Article handling apparatus
US2964203A (en) * 1956-09-27 1960-12-13 Bethlehem Steel Corp Coil stripping apparatus
US3228541A (en) * 1962-07-18 1966-01-11 Eugene E Crile Pallet handling machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1870224A (en) * 1928-09-15 1932-08-09 Beloit Iron Works Apparatus for handling rolls
US1824201A (en) * 1930-01-27 1931-09-22 Eisenberg Isidor Lift-truck
US2092540A (en) * 1935-05-14 1937-09-07 United Eng Foundry Co Coil unloader
US2848124A (en) * 1955-07-01 1958-08-19 Kaiser Aluminium Chem Corp Article handling apparatus
US2964203A (en) * 1956-09-27 1960-12-13 Bethlehem Steel Corp Coil stripping apparatus
US3228541A (en) * 1962-07-18 1966-01-11 Eugene E Crile Pallet handling machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4037671A1 (de) * 1990-11-27 1992-06-04 Sundwiger Eisen Maschinen Positioniervorrichtung fuer auf eine haspeltrommel aufzusteckende bunde, insbesondere aus metallband
US5248109A (en) * 1990-11-27 1993-09-28 Sundwiger Eisenhutte Maschinenfabrik Gmbh & Co. Positioning apparatus for coils, more particularly of metal strip, to be fitted on to a reeling drum

Also Published As

Publication number Publication date
FR1505472A (fr) 1967-12-15
DE1456935A1 (enrdf_load_html_response) 1969-03-20
GB1155386A (en) 1969-06-18

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AS Assignment

Owner name: PITTSBURGH NATIONAL BANK

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP.OF OH;REEL/FRAME:004458/0765

Effective date: 19850610

AS Assignment

Owner name: PITTSBURGH NATIONAL BANK,PENNSYLVANIA

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP. OH.;REEL/FRAME:004792/0307

Effective date: 19860630

Owner name: PITTSBURGH NATIONAL BANK

Free format text: SECURITY INTEREST;ASSIGNOR:WEAN UNITED, INC., A CORP. OH.;REEL/FRAME:004792/0307

Effective date: 19860630