CA2747815A1 - Method and apparatus for producing cut to length bars in a steel mill - Google Patents

Method and apparatus for producing cut to length bars in a steel mill Download PDF

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Publication number
CA2747815A1
CA2747815A1 CA2747815A CA2747815A CA2747815A1 CA 2747815 A1 CA2747815 A1 CA 2747815A1 CA 2747815 A CA2747815 A CA 2747815A CA 2747815 A CA2747815 A CA 2747815A CA 2747815 A1 CA2747815 A1 CA 2747815A1
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CA
Canada
Prior art keywords
length
bar
customer order
cold shears
cut
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.)
Granted
Application number
CA2747815A
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French (fr)
Other versions
CA2747815C (en
Inventor
David Teng Pong
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA2747815A priority Critical patent/CA2747815C/en
Publication of CA2747815A1 publication Critical patent/CA2747815A1/en
Application granted granted Critical
Publication of CA2747815C publication Critical patent/CA2747815C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B27/00—Bundling particular articles presenting special problems using string, wire, or narrow tape or band; Baling fibrous material, e.g. peat, not otherwise provided for
    • B65B27/10—Bundling rods, sticks, or like elongated objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D36/00—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut
    • B23D36/0008—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices
    • B23D36/0033—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Shearing Machines (AREA)

Abstract

A method and apparatus for producing steel bars that are cut to length in response to a customer order. The method includes producing a continuous length of steel bar from a rolling mill, cutting the continuous length of steel bar into successive segments, each representing a multiple of the length of the bar of the customer order, cutting the segments in in-line cold shears first into two times the length of the bar of the customer order and then in half into lengths equal to the length of the bar of the customer order while maintaining the production of the continuous length of steel bar produced by the rolling mill, and bundling the bars of the length of the customer order for discharge from the mill.

Claims (9)

1. A method of producing steel bars that are cut to length in response to a customer order, said method comprising the steps of:
producing a continuous length of steel bar from a rolling mill, cutting said continuous length of steel bar into successive segments, each representing a multiple of the length of the bar of the customer order, cutting said segments in in-line cold shears first into two times the length of the bar of the customer order and then in half into lengths equal to the length of the bar of the customer order while maintaining the production of the continuous length of steel bar produced by the rolling mill, and bundling the bars of the length of the customer order for discharge from the mill.
2. A method as claimed in claim 1, wherein when a change of length of the bar by a customer order is made, the length of said segments is changed and said segments are repositioned relative to said cold shears to produce the bar length corresponding to the changed length of the customer order.
3. A method as claimed in claim 2, wherein a CPU controls the cutting of the continuous length of steel bar by a flying shear and the cutting of the bar by the in-line cold shears.
4. A method as claimed in claim 3, comprising adjusting the position of said segments relative to said cold shears to cut the segments to the desired lengths in response to signals from said CPU.
5. A method as claimed in claim 4, wherein the bundling of the steel bars is effected in simultaneously in three in-line bundlers, one of which is stationary and the other two of which are moved to position in response to a signal from said CPU.
6. A method as claimed in claim 4, wherein said cold shears have respective gauge stops, said CPU producing signals to move said gauge stops to positions at which the cold shears cut the segments to the desired length of the customer order.
7. Apparatus for producing steel bars that are cut to length in response to a customer order, said apparatus comprising:
a rolling mill for producing a continuous length of steel bar;
a flying shear at an exit end of said rolling mill;
a CPU connected to said flying shear to cut said continuous length of steel bar into lengths each representing a multiple of the length of the bar of the customer order;
two in-line cold shears to which said lengths are continuously fed, said cold shears having respective adjustable gauge stops, said cold shears and said gauge stops being connected to said CPU which positions and operates said cold shears so that one cold shear cuts said lengths into pieces equal to two times the length of the bar of the customer order and the other cold shear cuts the cut pieces in half to produce bars cut to the length of the customer order, said cold shears being operated in time with the production of the continuously produced length of bar, and a bundling station positioned to receive the cut bars from the cold shears for producing bundles of the bars of the length of the customer order.
8. Apparatus as claimed in claim 7, wherein said bundling station includes three in-line bundlers, the first and third being movable and the second stationary.
9. Apparatus as claimed in claim 8, wherein said first and third bundlers are connected to the CPU for being moved in response to a change in length of the bar of the customer order.
CA2747815A 2011-08-08 2011-08-08 Method and apparatus for producing cut to length bars in a steel mill Expired - Fee Related CA2747815C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2747815A CA2747815C (en) 2011-08-08 2011-08-08 Method and apparatus for producing cut to length bars in a steel mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2747815A CA2747815C (en) 2011-08-08 2011-08-08 Method and apparatus for producing cut to length bars in a steel mill

Publications (2)

Publication Number Publication Date
CA2747815A1 true CA2747815A1 (en) 2011-10-11
CA2747815C CA2747815C (en) 2012-10-30

Family

ID=44786905

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2747815A Expired - Fee Related CA2747815C (en) 2011-08-08 2011-08-08 Method and apparatus for producing cut to length bars in a steel mill

Country Status (1)

Country Link
CA (1) CA2747815C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113976987A (en) * 2021-11-16 2022-01-28 大连华锐重工集团股份有限公司 Online transverse movement control system and method for efficient cold shearing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113976987A (en) * 2021-11-16 2022-01-28 大连华锐重工集团股份有限公司 Online transverse movement control system and method for efficient cold shearing machine
CN113976987B (en) * 2021-11-16 2023-12-26 大连华锐重工集团股份有限公司 On-line transverse movement regulation and control system and method for efficient cold shears

Also Published As

Publication number Publication date
CA2747815C (en) 2012-10-30

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MKLA Lapsed

Effective date: 20210809