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Rolling mill

A rolling mill and roll technology, applied in the direction of metal rolling stands, metal rolling, metal rolling, etc., can solve the problem of inability to prevent rolling vibration.

Inactive Publication Date: 2001-10-31
PRIMETALS TECHNOLOGIES JAPAN LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the above-mentioned anti-vibration equipment of a rolling mill for cold rolling cannot completely prevent rolling vibration during rolling

Method used

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  • Rolling mill
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Examples

Experimental program
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Effect test

no. 1 example

[0045] Such as figure 1 As shown, in the four-stage high stagger rolling mill as the rolling mill according to the first embodiment, a pair of upper and lower work roll chocks 12 and 13 are supported within a casing 11 . Shaft portions of a pair of upper and lower work rolls 14 and 15 are rotatably supported by upper and lower work roll chocks 12 and 13, respectively, and the upper and lower work rolls 14 and 15 face each other. A pair of upper and lower backup roll chocks 16 and 17 are supported above and below the upper and lower work roll chocks 12 and 13 . The shaft portions of a pair of upper and lower backup rolls 18 and 19 are rotatably supported by upper and lower backup roll chocks 16 and 17, respectively. The upper backup roll 18 and the upper work roll 14 face each other, and the lower backup roll 19 and the lower work roll 15 face each other. The unscrewing device 20 is provided in the upper part of the housing 11, and the device 20 is used to apply a rolling lo...

no. 2 example

[0057] Such as Figure 8 As shown, in the staggered rolling mill according to the second embodiment, upper and lower work rolls 64 and 65 are rotatably supported by a pair of upper and lower work roll chocks 62 and 63 supported by a casing 61 . Upper and lower backup rolls 68 and 69 are rotatably supported by a pair of upper and lower backup roll chocks 66 and 67 which are supported by housing 61 . A unscrewing device 70 for applying a rolling load is provided in an upper portion of the casing 61 . Upper crossheads 71 ​​and 72 for supporting the upper chocks 62 and 66 are provided on the input side and the output side of the housing 61 . The upper crossheads 71 ​​and 72 can move horizontally through a screw mechanism 73 and a hydraulic cylinder mechanism 74 . On the other hand, lower crossheads 75 and 76 for supporting the lower chocks 63 and 67 are provided on the input side and the output side of the casing 61 . The lower crossheads 75 and 76 are horizontally movable by a...

no. 3 example

[0061] Such as Figure 9 As shown, in the cross rolling mill according to the third embodiment, the upper work roll 14 is rotatably supported by the upper work roll chock 12 . The upper work roll chock 12 is horizontally movably supported by upper crossheads 21 and 22 on the input side and the output side. The upper crosshead 21 on the input side is movable by means of a hydraulic cylinder mechanism 81 . In contrast, the upper crosshead 22 on the output side is displaceable by means of a screw mechanism 82 . The upper backup roll 18 is rotatably supported by the upper backup roll chock 16 . The upper backup roll chock 16 is horizontally movably supported by upper crossheads 25 and 26 on the input and output sides. The upper crosshead 25 on the input side is movable by means of a hydraulic cylinder mechanism 83 . In contrast, the upper crosshead 26 on the output side is displaceable by means of a screw mechanism 84 . The lower work roll and the lower backup roll also have ...

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PUM

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Abstract

Work rolls (14, 15) opposed to each other have shafts rotatably supported by upper and lower work roll chocks (12, 13) of a housing (11), a screw down device (20) for applying a predetermined pressure to the upper work roll (14) is provided in an upper portion of the housing (11), screw mechanisms (23, 31) capable of thrusting the work roll chocks (12, 13) in a horizontal direction are provided on an entry side or a delivery side of the housing (11), hydraulic cylinder mechanisms (24, 32) capable of thrusting the work roll chocks (12, 13) in the horizontal direction are provided on the other side, and contraction portions (46) are provided in hydraulic supply and discharge pipes (45) of the hydraulic cylinder mechanisms (24, 32).

Description

technical field [0001] The present invention relates to a rolling mill for rolling strip or bar material to a predetermined thickness by passing upper and lower work rolls. In particular, the invention relates to a rolling mill, preferably for hot rolling. Background technique [0002] Figure 15 Schematic showing a conventional four-section high stagger rolling mill, Figure 16 The main parts are shown schematically to illustrate the roll changing operation in the cross rolling mill. [0003] Such as Figure 15 As shown, a pair of chocks 002 and 003 of the upper and lower work rolls are supported inside the housing 001. A pair of shaft portions of the upper and lower work rolls 004 and 005 are rotatably supported by the chocks 002 and 003 of the upper and lower work rolls, respectively, and the upper and lower work rolls 004 and 005 face each other. A pair of chocks 006 and 007 of the upper and lower backup rolls are supported above and below the chocks 002 and 003 of th...

Claims

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Application Information

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IPC IPC(8): B21B31/02B21B13/02B21B13/14B21B31/20B21B31/22B21B31/24B21B31/30B21B31/32B21B37/00
CPCB21B2013/025B21B31/02B21B2269/14B21B2031/206B21B13/023B21B37/007B21B31/32B21B31/30
Inventor 山本干朗东尾笃史古元秀昭森平直树林宽治吉田光宏森本和夫
Owner PRIMETALS TECHNOLOGIES JAPAN LTD
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