JPS56154202A - Manufacture of tapered bar - Google Patents

Manufacture of tapered bar

Info

Publication number
JPS56154202A
JPS56154202A JP5687280A JP5687280A JPS56154202A JP S56154202 A JPS56154202 A JP S56154202A JP 5687280 A JP5687280 A JP 5687280A JP 5687280 A JP5687280 A JP 5687280A JP S56154202 A JPS56154202 A JP S56154202A
Authority
JP
Japan
Prior art keywords
rolling rolls
backup roll
touchably
detachably
outer surfaces
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
JP5687280A
Other languages
Japanese (ja)
Inventor
Toyoyuki Tono
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.)
NHK Spring Co Ltd
Original Assignee
NHK Spring Co 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 NHK Spring Co Ltd filed Critical NHK Spring Co Ltd
Priority to JP5687280A priority Critical patent/JPS56154202A/en
Publication of JPS56154202A publication Critical patent/JPS56154202A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/007—Taper rolling, e.g. leaf springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Metal Rolling (AREA)

Abstract

PURPOSE:To simplify the rolling mechanism and its control, by driving the three rolling rolls which are provided with conical outer surfaces and mutually parallel axes of rotation and are supported touchably and detachably freely and mutually with a cylindrical backup roll. CONSTITUTION:A bar type material 10 is supported freely rotatably around its axis 10a and movably in its axial direction. Three rolling rolls 11, 12, 13 are arranged along the outer surface of the material 10 at intervals; the axes 11a, 12a, 13a parallel to the axis 10a of the material 10 are supported freely rotatably; besides, the rolling rolls 11, 12, 13 are supported freely touchably and detachably from the material 10. Conical surfaces 11b, 12b, 13b are respectively formed in each of outer surfaces of rolling rolls 11, 12, 13 and the large diameter side of conical surface 11b, 12b, 13b is placed on the front side of the advancing direction of the material 10; a cylindrical backup roll 14 wholly surrounding outer surfaces of rolling rolls 11, 12, 13 is installed freely touchably and detachably from rolling rolls 11, 12, 13; this backup roll 14 is connected to a hydraulic cylinder 15. The backup roll 14 is driven to rotate, and the rolling rolls 11, 12, 13 thereby roll the material 10, while the hydraulic cylinder 15 adjusts the position of the backup roll 14; hereby, a desired taper part is formed in the material 10.
JP5687280A 1980-04-28 1980-04-28 Manufacture of tapered bar Pending JPS56154202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5687280A JPS56154202A (en) 1980-04-28 1980-04-28 Manufacture of tapered bar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5687280A JPS56154202A (en) 1980-04-28 1980-04-28 Manufacture of tapered bar

Publications (1)

Publication Number Publication Date
JPS56154202A true JPS56154202A (en) 1981-11-28

Family

ID=13039508

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5687280A Pending JPS56154202A (en) 1980-04-28 1980-04-28 Manufacture of tapered bar

Country Status (1)

Country Link
JP (1) JPS56154202A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019240130A1 (en) * 2018-06-13 2019-12-19 日本発條株式会社 Workpiece processing device and workpiece processing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019240130A1 (en) * 2018-06-13 2019-12-19 日本発條株式会社 Workpiece processing device and workpiece processing method

Similar Documents

Publication Publication Date Title
ES463108A1 (en) Rolling mill
AU526637B2 (en) Roll for rolling mill
SE8603619L (en) CONTINUOUS, MULTIPLE-STEP SELECTION TYPE AND SELECTION METHOD
JPS56154202A (en) Manufacture of tapered bar
GB1267612A (en) A driven mandrel rotatable about its longitudinal axis for continuous production of tubing of indefinite length, preferably glass fibre reinforced plastics tubing
JPS55130314A (en) Shape controlling device multistage cluster mill
JPS56154201A (en) Manufacture of tapered bar
JPS5739006A (en) Four-stage mill
JPS5554204A (en) Roll and sheet shape controller using this roll
JPS54110155A (en) Rolling mill with roll provided with loose fit sleeve
JPS55130310A (en) Rolling mill for sheet
KR850007003A (en) Rolling Mill with Inclined Roll and Control Process
GB889916A (en) Improvements in rolling mills
JPS55126308A (en) Working method by rotary drilling rolling mill provided with roll revolved by planetary driving mechanism and rotary drilling rolling mill for said method
JPS5519425A (en) Rolling mill
JPS57202908A (en) Rolling mill
GB1339873A (en) Method of and apparatus for manufacturing workpieces provided with circumferential grooves such as belt sheaves rope sheaves or runners and rope rollers
JPS55126322A (en) Bending apparatus for metallic material
JPS55130308A (en) Rolling mill for sheet
JPS56144807A (en) Multistage rolling mill having shape controllability
JPS56114503A (en) Method and apparatus for continuous plastic working for tapered rod
JPS551970A (en) Production of sleeve for shrink fit
JPS5475456A (en) Shape controlling method in rolling sheet metal
JPS5659515A (en) Multistage rolling mill possessing shape controlling function
JPS5747534A (en) Tube spinning equipment