JPS569122A - Cutting method of moving material into uniform size - Google Patents

Cutting method of moving material into uniform size

Info

Publication number
JPS569122A
JPS569122A JP8117579A JP8117579A JPS569122A JP S569122 A JPS569122 A JP S569122A JP 8117579 A JP8117579 A JP 8117579A JP 8117579 A JP8117579 A JP 8117579A JP S569122 A JPS569122 A JP S569122A
Authority
JP
Japan
Prior art keywords
cutting
strip
shear
disposed
time
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.)
Pending
Application number
JP8117579A
Other languages
Japanese (ja)
Inventor
Tomoaki Kurokawa
Tomio Yamakawa
Yoshio Kawashima
Katsunori Yamashita
Hajime Kobayashi
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP8117579A priority Critical patent/JPS569122A/en
Publication of JPS569122A publication Critical patent/JPS569122A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE: To improve the accuracy of a strip steel cutting operation in a strip steel rolling line, by predicting the strip cutting timing through detection of the number of pulses produced from a pulse generator interconnected to a roller turning shaft by the time when the top of material to be cut comes to a cutting point.
CONSTITUTION: A dividing shear 3 for cutting the strip steel 1 is disposed on the downstream side of the final mill 2, and material detectors D1, D2WDi, Di+1 are disposed at positions spaced from the shear 3 through a distance a little short of a required cutting length. In cutting the material into required sizes, counting of pulses produced from pulse generator 4 is started when the top of strip 1 passes detector Di-1 disposed on the upstream side of point P where the top of trip 1 is to be located at the time of cutting. Here, the moving speed of material 1 is detected from the count of pulses produced by the time when the top of material 1 passes detector Di, and a predicted number of pulses required for obtaining correct cutting timing is calculated by an arithmetic means 10. With such an arrangement, the shear 3 is set into operation when the pulse number after passing detector Di has reached the predicted pulse number.
COPYRIGHT: (C)1981,JPO&Japio
JP8117579A 1979-06-27 1979-06-27 Cutting method of moving material into uniform size Pending JPS569122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8117579A JPS569122A (en) 1979-06-27 1979-06-27 Cutting method of moving material into uniform size

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8117579A JPS569122A (en) 1979-06-27 1979-06-27 Cutting method of moving material into uniform size

Publications (1)

Publication Number Publication Date
JPS569122A true JPS569122A (en) 1981-01-30

Family

ID=13739120

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8117579A Pending JPS569122A (en) 1979-06-27 1979-06-27 Cutting method of moving material into uniform size

Country Status (1)

Country Link
JP (1) JPS569122A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938606A (en) * 1982-08-27 1984-03-02 Kobe Steel Ltd Cut length inspecting device for wire material
CN103071682A (en) * 2012-12-04 2013-05-01 马钢(集团)控股有限公司 Control system for preventing abnormal head cutting of rod head and tail cutting shear

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938606A (en) * 1982-08-27 1984-03-02 Kobe Steel Ltd Cut length inspecting device for wire material
JPH0257646B2 (en) * 1982-08-27 1990-12-05 Kobe Seikosho Kk
CN103071682A (en) * 2012-12-04 2013-05-01 马钢(集团)控股有限公司 Control system for preventing abnormal head cutting of rod head and tail cutting shear

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