JPS5762811A - Controlling method for planetary mill equipment - Google Patents

Controlling method for planetary mill equipment

Info

Publication number
JPS5762811A
JPS5762811A JP55137644A JP13764480A JPS5762811A JP S5762811 A JPS5762811 A JP S5762811A JP 55137644 A JP55137644 A JP 55137644A JP 13764480 A JP13764480 A JP 13764480A JP S5762811 A JPS5762811 A JP S5762811A
Authority
JP
Japan
Prior art keywords
welding point
change
planetary mill
load current
detecting circuit
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
JP55137644A
Other languages
Japanese (ja)
Other versions
JPH0212643B2 (en
Inventor
Hiroshi Sodeyama
Yukihiro Kono
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP55137644A priority Critical patent/JPS5762811A/en
Publication of JPS5762811A publication Critical patent/JPS5762811A/en
Publication of JPH0212643B2 publication Critical patent/JPH0212643B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/46—Roll speed or drive motor control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/18—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills
    • B21B13/20—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for step-by-step or planetary rolling; pendulum mills for planetary rolling
    • 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
    • B21B15/0085—Joining ends of material to continuous strip, bar or sheet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

PURPOSE: To make labor saving and automation by detecting the welding point of slag through change of rolling sound volume of the mill, change of load current of a motor and welding tracking and using it for separation timing of welding point.
CONSTITUTION: When welding point 16 of a preceding slab 18, a material to be rolled, and a succeeding slab 17 comes just below a planetary mill 1, it is detected through the change of volume of rolling sound of the planetary mill 1 by a rolling sound volume detecting circuit 12, and the change of load current of a motor for the planetary mill 1 is detected by a load current detecting circuit 13. Acceleration timing is obtained further by tracking of welding point or from output of a slab separation point detecting circuit 15 obtained by combining the above. In this way, the welding point 16 of the slabs 17, 18 can be detected automatically. Thus, labor saving is attained and failure of coiling operation in the coiler section due to mistake of an operator can be prevented.
COPYRIGHT: (C)1982,JPO&Japio
JP55137644A 1980-10-03 1980-10-03 Controlling method for planetary mill equipment Granted JPS5762811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55137644A JPS5762811A (en) 1980-10-03 1980-10-03 Controlling method for planetary mill equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55137644A JPS5762811A (en) 1980-10-03 1980-10-03 Controlling method for planetary mill equipment

Publications (2)

Publication Number Publication Date
JPS5762811A true JPS5762811A (en) 1982-04-16
JPH0212643B2 JPH0212643B2 (en) 1990-03-23

Family

ID=15203452

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55137644A Granted JPS5762811A (en) 1980-10-03 1980-10-03 Controlling method for planetary mill equipment

Country Status (1)

Country Link
JP (1) JPS5762811A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120403A (en) * 1979-03-13 1980-09-16 Hitachi Metals Ltd Butt rolling method for uneven slab by planetary mill

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120403A (en) * 1979-03-13 1980-09-16 Hitachi Metals Ltd Butt rolling method for uneven slab by planetary mill

Also Published As

Publication number Publication date
JPH0212643B2 (en) 1990-03-23

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