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US3670551A - Holding shelf apparatus - Google Patents

Holding shelf apparatus Download PDF

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Publication number
US3670551A
US3670551A US46360A US3670551DA US3670551A US 3670551 A US3670551 A US 3670551A US 46360 A US46360 A US 46360A US 3670551D A US3670551D A US 3670551DA US 3670551 A US3670551 A US 3670551A
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US
United States
Prior art keywords
strip
shelves
moving
path
supporting
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
US46360A
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English (en)
Inventor
Albert Theodore Briggs
Eugene Henry Swisher
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.)
United Engineering and Foundry Co
United Engineering Inc
Original Assignee
United Engineering and Foundry Co
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 United Engineering and Foundry Co filed Critical United Engineering and Foundry Co
Application granted granted Critical
Publication of US3670551A publication Critical patent/US3670551A/en
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP.OF OH
Assigned to PITTSBURGH NATIONAL BANK reassignment PITTSBURGH NATIONAL BANK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: WEAN UNITED, INC., A CORP. OH.
Assigned to WEAN UNITED, INC. reassignment WEAN UNITED, INC. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). TO RELEASE SECURTIY DOCUMENT RECORDED AT REEL, FRAME 4792/307 RECORDED FEB. 26, 1987 Assignors: PITTSBURGH NATIONAL BANK
Assigned to UNITED ENGINEERING ROLLING MILLS, INC. reassignment UNITED ENGINEERING ROLLING MILLS, INC. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WEAN INCORPORATED
Anticipated expiration legal-status Critical
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
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass

Definitions

  • ABSTRACT The present invention relates to an holding shelf apparatus for strip-like material as is employed, for example. in connection with a tandem rolling mill.
  • the disclosure of this invention comprises a pair of opposed shelves for supporting the edges of a strip above the passline of a rolling mill at the entry side thereof.
  • Each shelf includes an upright frame for vertically guiding the shelves to and from the passline.
  • Each shelf is made up of a number of vertical rollers that engage the opposite edges of the strip and a holddown arm for holding the strip against the shelves.
  • the shelves are lowered to the mill passline by a piston cylinder assembly and are moved transversely by a combined tandem piston cylinder assembly-screw drive; one of the cylinder assemblies being employed to bring the shelves under the strip and the other cylinder assembly is used to center the strip relative to the center line of the mill.
  • the lost time involved in starting a new coil is very critical.
  • the reason for providing holding shelves is to enable the leading end to be held in readiness for quick feeding to the guides once the previous strip has passed therethrough.
  • the past designs of holding shelves did not always permit the strip to be guided properly into the mill. This was because the strip was allowed'to drop from a position above the mill passline and in so doing, there was nothing to prevent it from skewing and/or taking an improper attitude relative to the center line of the mill.
  • previous designs did not provide any positive way to center the strip prior to lowering it to the passline and, once centered, to hold it in its centered position.
  • the present invention provides an holding shelf having means for quickly supporting and centering the leading end of the strip and for holding the strip in its centered position while it is lowered to the passline of the mill or to other processing devices.
  • FIG. 1 is a sectional view of an holding shelf apparatus built in accordance with the present invention taken on lines 1--l of FIG. 2;
  • FIG. 2 is a plane view of the apparatus illustrated in FIG. 1;
  • FIG. 3 is a sectional view taken on lines 3-3 of FIG. 2;
  • FIG. 4 is a schematic view of an hydraulic system employed for the lifting piston cylinder assemblies of the shelves.
  • FIG. 1 does illustrate a pinch roll unit 10 arranged at the entry side of the holding shelves and consisting of a lower roll 11 and an upper roll 12.
  • the upper roll is vertically positionable by a piston cylinder assembly 13, the function of which will be explained later.
  • each shelf consists of an identical structure and for which reason only one will be described although in FIG. 4 the second shelf is illustrated.
  • a stationary apron 16 Between each shelf 14 and 15, centrally located just below the mill passline, which is legend in FIG. 3, there is provided a stationary apron 16.
  • an upright member 18 which includes a pair of guides 21 and 22 for slidably receiving a carriage 23. The upright member 18 is ultimately supported by a base member 24.
  • the carriage 23 includes an horizontal projecting apron 25 spaced-apart, freely rotatable rollers 26.
  • the rollers are arranged so that the edges of the strip supported by the apron 25 can be engaged by the rollers.
  • a strip holddown unit Towards the entry guide side of the shelf 15 there is provided a strip holddown unit, best shown in FIG. 1. It consists of a trunnion shaft 28 for pivotally supporting an arm 31, the arm being movable towards and away from the apron 25 by a piston cylinder assembly 32.
  • the entire carriage 23 is moved within the guides 21 and 22 by a piston cylinder assembly 33, shown best in FIG. 3, which shows the cylinder of the assembly connected to an upright member 34 which, in turn, is secured to the upright member 18 supportable by the base member 24.
  • the carriage 23 is adapted to be traversed towards and away from the adjacent edge of the strip. This movement is accomplished by three separate power means, the first being a screw nut drive unit 35 which is driven by a gear reducer 36 and a motor 37.
  • the nut of the drive unit is carried by a platform member 38 which is movable on travel of the nut by the rotating screw and which serves to support the piston end of one of two tandemly arranged piston cylinder assemblies 41 and 42.
  • the piston cylinder assembly 41 which is the smaller stroke cylinder is connected to the upright member 18, the cylinder 42 being carried by the member 38. In the illustrated form, the piston cylinder assembly 41 has a stroke of 4% inches while the piston cylinder assembly 42 has a stroke of 10 inches.
  • the carriage 23 is guided during its traverse movement by parallel guide rods 44 shown in FIGS. 2 and 3, the rods being slidably supported in bearings carried by the base 24.
  • FIG. 4 illustrates the hydraulic inter-connecting system for the cylinders 33 that move the shelves vertically from a holding path which is legend in FIG. 3 to the mill passline.
  • the piston cylinder assemblies 33 for each shelf are arranged so that their rods point in different directions and that the rod ends of the cylinders are directly inter-connected by a line 45.
  • Two additional lines 46 and 46a are provided which through a directional valve 47 are connected to the head ends of the piston cylinder assemblies 33.
  • the valve is also associated with a pump 48 and a reservoir 49. In this way the valve can be positioned to admit fluid under pressure alternately to one or the other of the head ends of the cylinders, in which case the head end of the cylinder not being supplied fluid is vented to the reservoir 49 through the valve 47.
  • fluid admitted to the head end of the drive side cylinder will cause both shelves 14 and 15 to raise, in which it will be appreciated that as thepiston at the drive side is raised the fluid in the rod end of this cylinder will be forced through line 45 to cause the piston of the operating side cylinder to rise at the same speed.
  • fluid supplied to the head end of the operating side cylinder by the proper positioning of the valve 47 will cause both shelves to lower at the same speed, in which fluid will be again forced through the line 45, but in the opposite direction.
  • the piston cylinder assemblies 32 and both of the tandem piston cylinder assemblies 41 and 42 can be operated to release the strip and retract the aprons 25 away from the strip leaving the strip supported by the apron 16 and held in its I center position by the pinch rolls 11 and 12.
  • a holding shelf apparatus for supporting strip-like material incident to the strip being fed into a desired path of travel comprising:
  • a strip supporting member arranged to extend in a direction parallel to said path of travel
  • means for moving said member when in a position above said path transverse of said path to bring the member into supporting relationship with a strip and for centering said member including means for holding the strip against said member after it has been centered and during said first movement.
  • a holding shelf apparatus according to claim 1 wherein said strip supporting member includes a pair of opposed strip supporting shelves each having a surface for supporting a different one of the edges of the strip,
  • a holding shelf apparatus according to claim 2 wherein said separate means for moving said shelves into said two positions, each comprise a piston cylinder assembly, and
  • said separate means for moving said shelves transversely each comprise a first and second piston cylinder assembly; one cylinder having a relatively long stroke for bringing the shelf into a supporting position with the strip and the other cylinder having a relatively short stroke to center the strip relative to said data position.
  • each shelf has a separate means for holding the strip and which comprises:
  • a piston cylinder assembly connected to said arm to bring the arm into engagement with a strip supported by a shelf.
  • each shelf has a screw drive unit for moving said shelves transversely
  • a holding shelf apparatus according to claim 1 wherein said member comprises a vertically arranged frame
  • said means for moving said member into said two positions comprising,
  • said means for transversely moving said member comprising a pair of tandemly arranged piston cylinder assemblies connected to and for moving said frame transversely relative to said base,
  • a screw driving unit supported by said base and connected to said platform for moving said platform transversely of said path of travel.
  • a holding shelf apparatus wherein said separate piston cylinder assemblies for moving said shelves into said two positions are arranged with the piston rods extending in opposite directions and wherein the piston rod sides and the cylinder sides of the cylinder assemblies are fluidly inter-connected.
  • said strip support member comprises a pair of opposed strip supporting shelves, each having a surface for supporting a different edge of the strip, and wherein the means for moving said shelves to said path of travel includes means for placing said shelves in an aligned relationship in said position above the path of travel and further includes means for moving said shelves downwardly at substantially equal speeds from said position above the path of travel to said path of travel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Replacement Of Web Rolls (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Metal Rolling (AREA)
US46360A 1970-06-15 1970-06-15 Holding shelf apparatus Expired - Lifetime US3670551A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4636070A 1970-06-15 1970-06-15

Publications (1)

Publication Number Publication Date
US3670551A true US3670551A (en) 1972-06-20

Family

ID=21943044

Family Applications (1)

Application Number Title Priority Date Filing Date
US46360A Expired - Lifetime US3670551A (en) 1970-06-15 1970-06-15 Holding shelf apparatus

Country Status (6)

Country Link
US (1) US3670551A (de)
JP (1) JPS5021311B1 (de)
CA (1) CA944192A (de)
DE (1) DE2129689A1 (de)
GB (1) GB1349952A (de)
NL (1) NL7108174A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489520A (zh) * 2011-12-06 2012-06-13 中国重型机械研究院有限公司 三辊式稳定辊机构
CN103170503A (zh) * 2013-03-26 2013-06-26 河南科技大学 一种设有矫正装置的轧辊机

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5159422A (ja) * 1974-11-13 1976-05-24 Werz Furnier Sperrholz Kenzai
JPS52108810U (de) * 1976-02-13 1977-08-18
EP2884186B1 (de) 2012-12-31 2017-03-15 Guangdong Galanz Microwave Oven and Electrical Appliances Manufacturing Co., Ltd. Bogenförmiger mikrowellenofen
CN112896896A (zh) * 2021-02-09 2021-06-04 深圳市海柔创新科技有限公司 货物运输方法、装置、流利货架、中转装置及仓储系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US152508A (en) * 1874-06-30 Improvement in rolling-mills and their
US421039A (en) * 1890-02-11 Rolling-mill

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US152508A (en) * 1874-06-30 Improvement in rolling-mills and their
US421039A (en) * 1890-02-11 Rolling-mill

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489520A (zh) * 2011-12-06 2012-06-13 中国重型机械研究院有限公司 三辊式稳定辊机构
CN102489520B (zh) * 2011-12-06 2014-04-23 中国重型机械研究院有限公司 三辊式稳定辊机构
CN103170503A (zh) * 2013-03-26 2013-06-26 河南科技大学 一种设有矫正装置的轧辊机

Also Published As

Publication number Publication date
DE2129689A1 (de) 1971-12-16
CA944192A (en) 1974-03-26
GB1349952A (en) 1974-04-10
JPS5021311B1 (de) 1975-07-22
NL7108174A (de) 1971-12-17

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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

AS Assignment

Owner name: WEAN UNITED, INC.

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:PITTSBURGH NATIONAL BANK;REEL/FRAME:004925/0218

Effective date: 19880509

AS Assignment

Owner name: UNITED ENGINEERING ROLLING MILLS, INC.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WEAN INCORPORATED;REEL/FRAME:004920/0256

Effective date: 19880610