US3648861A - Device for transporting slabs in rolling mills - Google Patents

Device for transporting slabs in rolling mills Download PDF

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Publication number
US3648861A
US3648861A US2466A US3648861DA US3648861A US 3648861 A US3648861 A US 3648861A US 2466 A US2466 A US 2466A US 3648861D A US3648861D A US 3648861DA US 3648861 A US3648861 A US 3648861A
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US
United States
Prior art keywords
slab
conveying means
slabs
conveyor
furnace
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
US2466A
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English (en)
Inventor
Wolfgang Fabian
Theodor Sevenich
Klaus Kuhn
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.)
Fried Krupp AG Hoesch Krupp
Original Assignee
Hoesch AG
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 Hoesch AG filed Critical Hoesch AG
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Publication of US3648861A publication Critical patent/US3648861A/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path
    • F27B9/22—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path on rails, e.g. under the action of scrapers or pushers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0001—Positioning the charge
    • F27D2003/0002—Positioning the charge involving positioning devices, e.g. buffers, buffer zones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0001—Positioning the charge
    • F27D2003/0012—Working with piles
    • F27D2003/0013—Unstacking or making stacks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0042—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising roller trains
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0046—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising one or more movable arms, e.g. forks
    • F27D2003/0048—Walking beams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0059—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising tracks, e.g. rails and wagon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0063—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities comprising endless belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D2003/0034—Means for moving, conveying, transporting the charge in the furnace or in the charging facilities
    • F27D2003/0065—Lifts, e.g. containing the bucket elevators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/12—Travelling or movable supports or containers for the charge
    • F27D2003/125—Charging cars, lift trolleys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/02—Preheating, e.g. in a laminating line

Definitions

  • the present invention relates to a device for transporting the slabs in rolling mills, especially in wide strip rolling mills, from the storage place of the slabs to the pusher furnaces while forming an intermediate storage place on the slab package conveyor.
  • roller tables or conveyors have been arranged in front of the separating tables, and a supply of slab packages is held in readiness on said roller tables or conveyors. Since with these package roller tables or conveyors it is possible to charge merely one separating table, considerable intervals occur between the packages when charging the pusher furnaces. These intervals are due to the lowering of the separating table and due to the transfer of a slab package from the roller conveyor to the separating table. Moreover, package roller tables or conveyors are expensive and space consuming inasmuch as they must extend parallel to the furnace roller table or conveyor but must be offset relative thereto in the longitudinal direction of the halls. With this arrangement of the slab transport, there is also a second slab hall necessary.
  • the slabs are individually deposited upon the furnace roller conveyor which extends in the longitudinal direction through the entire slab storage place.
  • This type of slab transport requires a precisely controlled pre-piling up of the slabs in the slab storage station over a longer period of time, and in view of the individual transfer also requires an increased crane operation.
  • a further drawback consists in that errors in the sequence of the slabs may easily occur because a plurality of cranes deposit the slabs simultaneously at different places of the roller conveyor.
  • an object of the present invention to provide an arrangement for the transport of slabs of the above mentioned type which will overcome the above outlined drawbacks and which will make it possible in intervals of a few seconds only and at a minimum of investment costs, space and crane work to charge the slabs onto the furnace roller conveyor.
  • FIG. 1 is a top view of a first slab conveying system according to the invention.
  • FIG. 2 represents a longitudinal section through the slab conveyor according to FIG. 1.
  • FIG. 3 represents a top view of a second embodiment of the present invention.
  • FIG. 4 is a longitudinal section through the slab conveyor according to FIG. 3.
  • the problem underlying the present invention has been solved in conformity with the present invention by arranging the slab package conveyor parallel to the axes of the pusher furnace and perpendicularly with regard to the direction of the furnace roller conveyor.
  • a transfer roller table between the furnace roller conveyor and the slab package conveyor there is arranged parallel to the furnace roller conveyor a transfer roller table, and at both sides of said transfer roller table there is a separating table cooperating with a transfer conveyor and a displaceable counter bearing.
  • the t slab package conveyor is formed by a chain conveyor
  • the transfer carriage is equipped with a distance feeler which limits the driving movement of the transfer carriage, while between the furnace roller conveyor and the transfer carriage there is provided a limit switch limiting the traveling movement of the chains of the conveyor.
  • the transfer roller conveyor on the runway is displaceable advantageously in the direction of the axes'of its rollers and is also adapted to be lifted and lowered.
  • the slab package conveyor is in the form of a rocker bar type conveyor having lifting bars between which and adjacent to which there are arranged evenly spaced elevations which are spring-supported.
  • the arrangement shown therein comprises pusher furnaces 1 of a rolling mill.
  • a furnace roller conveyor 2 by means of which the slabs to be heated to rolling temperature are conveyed in front of the charging openings In. From the furnace roller conveyor 2 the slabs are pushed by slab pushers 3 into the respective pusher furnace 1.
  • a slab conveyor in the form of a chain conveyor 4 which is passed below the roller conveyor 2.
  • the chain conveyor 4 is driven by a motor 4a with a transmission 4b.
  • a displaceable transfer carriage 6 which comprises a lifting device 7 and a distance feeler 8 facing toward the furnace roller conveyor 2.
  • a transfer roller conveyor 9 Between the conveyor 2 and the chain conveyor 4 there is provided a transfer roller conveyor 9 which is adapted to be lifted and lowered and which is movable on the track 5 of the transfer carriage 6.
  • a limit switch 10 Between the conveyors 2 and 9 there is arranged a limit switch 10.
  • slab unstacking or separating means which include one separating table 11 each which is adapted to be lifted and lowered and which cooperates on one hand with the transfer roller conveyor 9 and on the other hand with a transfer conveyor 12 and a counter bearing or abutment 13 which is displaceable in any suitable manner.
  • a slab package 15 consisting for instance of four slabs, is by means of a slab crane withdrawn from the slab storage station 14 and deposited upon a transfer carriage 6.
  • the transfer carriage 6 will with the slab package 15 move toward the slab package 16 previously deposited upon the chain conveyor 4 so that a certain distance remains therebetween which distance is determined by the distance feeler 8.
  • the lifting device 7 of the transfer carriage 6 is lowered, and the slab package 15 is deposited upon the chain conveyor 4 whereupon the transfer carriage 6 moves back by a distance determined by the maximum slab width, and in this position waits for the next slab package.
  • This cycle is repeated independently of the movement of the chain conveyor until the latter has been completely charged with slab packages.
  • the movement of the chain conveyor 4 is stopped when the edge A of that slab package which is the first on the chain conveyor 4 pushes against the limit switch arranged behind the transfer roller conveyor 9 (see FIG. 2).
  • the roller conveyor 9 is retracted to such an extent that the roller conveyor edge B does not protrude beyond the slab edge C, and the subsequent package will not accidentally be lifted. Thereupon the transfer roller conveyor 9 is lifted to such an extent that the slab package no longer rests on the chains.
  • the slab package is moved from the roller conveyor 9 to the separating table 11 which is at substantially the same level. From the separating table 11 the individual slabs of the slab package are by means of the transfer member 12 and the counter bearing 13 pushed onto the roller conveyor 2. The said counter bearing 13 will during the movement of the slabs on the roller conveyor 2 support the remaining slab packages so that only one slab at a time will be delivered to the furnace roller conveyor.
  • the slab conveyor is designed in the form of a lifting or rocker bar type conveyor 17.
  • the slab packages 18 will with this conveyor be placed upon spring-supported receiving elevations 20, said elevations being equally spaced from each other.
  • the transfer roller conveyor 21 After the transfer roller conveyor 21 has become empty, all slab packages are lifted off simultaneously from the rocker bar and in the thus lifted condition are conveyed by the distance between two adjacent elevations and are subsequently deposited upon the next row of elevations.
  • the rocker bar track 22 is mounted on lifting cylinders 23.
  • the rocker bars 19 are connected to driving cylinders 24.
  • That slab package which is closest to the transfer roller conveyor 21 is with this transporting device transferred to the roller conveyor 21. From here it is withdrawn by a separating table 1] moved into its lower end position.
  • the present invention has the distinct advantage that over a longer period of time and in very short time intervals it is possible at a minimum of costs, space and crane work to feed the slabs onto the furnace roller conveyor.
  • the predetermined sequence can be maintained at which the slabs are to be rolled following their heating in the pusher furnace.
  • waiting or idling periods of the transporting cranes if they have short tracks or are to be moved over short sections, will likewise be avoided, and also idling periods of the pusher furnaces and thus idling periods of the mill train when the slab transporting crances have to carry out relatively long travelling movements.
  • transporting means for quickly transporting slabs in rolling mills from a slab storage place to said pusher furnaces in minimum space, which includes; furnace roller conveyor means havingthe lon 'tudinal extension thereof directed substantially at a right an e to the direction in which the slabs are to be pushed into said furnaces by said pushers, and slab packets conveying means having the longitudinal extension thereof directed substantially perpendicularly with regard to said furnace roller conveyor means and substantially parallel with regard to the pushing direction of said pushers, and transfer roller conveying means interposed between said slab packets conveying means and said furnace roller conveying means and extending substantially parallel to said furnace conveying means, and slab separating means at each end of said transfer roller conveying means to receive a slab packet from said transfer roller conveying means and deliver said slabs individually one at a time to said furnace roller conveying means.
  • slab packets conveying means forms a substantially horizontally extending chain conveyor, and which includes runway means arranged below the upper section of said chain conveyor, and transfer carriage means displaceable on said runway means and comprising lifting means for lifting slabs placed on said carriage means and depositing said lifted slabs onto said slab packets conveying means.
  • said slab packets conveying means is formed by lifting beam conveying means comprising substantially parallel lifting beams spaced from each other in transverse direction thereof, said lifting beam conveying means also including cushioned elevated means for receiving and supporting slab packets.
  • said slab separating means includes separating table means at the end of said transfer roller conveying means and pushers for moving one slab at a time from said slab packet on to said furnace roller conveying means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Relays Between Conveyors (AREA)
US2466A 1969-01-15 1970-01-13 Device for transporting slabs in rolling mills Expired - Lifetime US3648861A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1901851A DE1901851C3 (de) 1969-01-15 1969-01-15 Einrichtung fur den Transport von Vor brammen in Walzwerken

Publications (1)

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US3648861A true US3648861A (en) 1972-03-14

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ID=5722482

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US2466A Expired - Lifetime US3648861A (en) 1969-01-15 1970-01-13 Device for transporting slabs in rolling mills

Country Status (7)

Country Link
US (1) US3648861A (enrdf_load_stackoverflow)
JP (2) JPS5429787B1 (enrdf_load_stackoverflow)
BE (1) BE744415A (enrdf_load_stackoverflow)
DE (1) DE1901851C3 (enrdf_load_stackoverflow)
FR (1) FR2028373A1 (enrdf_load_stackoverflow)
GB (1) GB1297904A (enrdf_load_stackoverflow)
NL (1) NL7000537A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917078A (en) * 1974-05-28 1975-11-04 Hans V Schmidt Elongate-material transport system
US3931879A (en) * 1973-11-09 1976-01-13 Mecaval International Automatic device for systematically placing elongated products on a conveyor
US4187942A (en) * 1975-11-27 1980-02-12 Herbert Morris Ltd. Transfer beam conveyor
USD491320S1 (en) 2003-06-23 2004-06-08 Ctb Ip, Inc. Rim for a feed pan
CN102059260A (zh) * 2010-11-09 2011-05-18 常熟市梅李机械制造有限公司 冷轧管机送进机构的送进小车与导轨的配合结构
CN105228762A (zh) * 2013-05-21 2016-01-06 首要金属科技奥地利有限责任公司 用于快速地将厚板从辊压机中运送出来的方法和装置
CN111908086A (zh) * 2020-07-22 2020-11-10 北新建材(昆明)有限公司 一种垫板自动输送装置及其调控方法
CN115122405A (zh) * 2022-06-30 2022-09-30 广东乐维智能装备有限公司 一种基于后段高效上料的pcb板开料装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111272325B (zh) * 2020-04-19 2021-04-27 石河子大学 一种采棉机摘锭脱棉力测试试验台
CN111517087B (zh) * 2020-05-21 2025-06-17 风神物流有限公司 一种汽车零部件转运上料装置
CN112623702B (zh) * 2020-12-23 2024-08-20 广州达意隆包装机械股份有限公司 一种高速码垛系统及高速码垛方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US727942A (en) * 1902-08-14 1903-05-12 Hebb Coke Drawer Company Coke-drawing machine.
US3490621A (en) * 1968-01-16 1970-01-20 Westinghouse Electric Corp Workpiece distribution system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US727942A (en) * 1902-08-14 1903-05-12 Hebb Coke Drawer Company Coke-drawing machine.
US3490621A (en) * 1968-01-16 1970-01-20 Westinghouse Electric Corp Workpiece distribution system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931879A (en) * 1973-11-09 1976-01-13 Mecaval International Automatic device for systematically placing elongated products on a conveyor
US3917078A (en) * 1974-05-28 1975-11-04 Hans V Schmidt Elongate-material transport system
US4187942A (en) * 1975-11-27 1980-02-12 Herbert Morris Ltd. Transfer beam conveyor
USD491320S1 (en) 2003-06-23 2004-06-08 Ctb Ip, Inc. Rim for a feed pan
CN102059260A (zh) * 2010-11-09 2011-05-18 常熟市梅李机械制造有限公司 冷轧管机送进机构的送进小车与导轨的配合结构
CN102059260B (zh) * 2010-11-09 2012-05-02 常熟市梅李机械制造有限公司 冷轧管机送进机构的送进小车与导轨的配合结构
CN105228762A (zh) * 2013-05-21 2016-01-06 首要金属科技奥地利有限责任公司 用于快速地将厚板从辊压机中运送出来的方法和装置
CN105228762B (zh) * 2013-05-21 2018-04-06 首要金属科技奥地利有限责任公司 用于快速地将厚板从辊压机中运送出来的方法和装置
CN111908086A (zh) * 2020-07-22 2020-11-10 北新建材(昆明)有限公司 一种垫板自动输送装置及其调控方法
CN111908086B (zh) * 2020-07-22 2021-09-07 北新建材(昆明)有限公司 一种垫板自动输送装置及其调控方法
CN115122405A (zh) * 2022-06-30 2022-09-30 广东乐维智能装备有限公司 一种基于后段高效上料的pcb板开料装置

Also Published As

Publication number Publication date
NL7000537A (enrdf_load_stackoverflow) 1970-07-17
JPS5429787B1 (enrdf_load_stackoverflow) 1979-09-26
GB1297904A (enrdf_load_stackoverflow) 1972-11-29
BE744415A (fr) 1970-07-14
JPS5726843B1 (enrdf_load_stackoverflow) 1982-06-07
DE1901851B2 (de) 1973-03-29
DE1901851A1 (de) 1970-08-06
FR2028373A1 (enrdf_load_stackoverflow) 1970-10-09
DE1901851C3 (de) 1973-10-25

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