JPS57160614A - Tentering apparatus of running sheet - Google Patents

Tentering apparatus of running sheet

Info

Publication number
JPS57160614A
JPS57160614A JP4563081A JP4563081A JPS57160614A JP S57160614 A JPS57160614 A JP S57160614A JP 4563081 A JP4563081 A JP 4563081A JP 4563081 A JP4563081 A JP 4563081A JP S57160614 A JPS57160614 A JP S57160614A
Authority
JP
Japan
Prior art keywords
sheet
rolls
roll
width direction
lower rolls
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
JP4563081A
Other languages
Japanese (ja)
Other versions
JPH0139897B2 (en
Inventor
Akira Kataoka
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.)
Kataoka Machine Tools Manufacturing Co Ltd
Original Assignee
Kataoka Machine Tools Manufacturing 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 Kataoka Machine Tools Manufacturing Co Ltd filed Critical Kataoka Machine Tools Manufacturing Co Ltd
Priority to JP4563081A priority Critical patent/JPS57160614A/en
Publication of JPS57160614A publication Critical patent/JPS57160614A/en
Publication of JPH0139897B2 publication Critical patent/JPH0139897B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/16—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/20—Edge clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/512—Changing form of handled material
    • B65H2301/5124—Stretching; Tentering
    • B65H2301/51242—Stretching transversely; Tentering
    • B65H2301/512422—Stretching transversely; Tentering involving roller pair acting on edge of web

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

PURPOSE:To prevent the generation of air table phenomenon, by putting only both edge parts of a running sheet between upper and lower rolls and tentering the sheet directly. CONSTITUTION:Two sets of upper and lower rolls are arranged symmetrically right and left so as to put only both edge parts of a running sheet S between. Right and left lower rolls are rotated synchronously each other, being connected by the intermediate part of an expander roll 3. Directions of right and left rolls are directed obliquely outside by an angle theta generating a proper tension T of width direction to the sheet between rolls. By supporting the upper roll 5 by a floating arm 7 in free up and down motion a force advancing the edge part of the sheet S obliquely outside is decided by the frictional force obtained by multiplying the weight of the upper roll 5 with the frictional coefficient between the sheet and the roll, and the tension T of width direction of the sheet S is decided by its partial force of width direction. Thus, generation of air table phenomenon is prevented.
JP4563081A 1981-03-30 1981-03-30 Tentering apparatus of running sheet Granted JPS57160614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4563081A JPS57160614A (en) 1981-03-30 1981-03-30 Tentering apparatus of running sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4563081A JPS57160614A (en) 1981-03-30 1981-03-30 Tentering apparatus of running sheet

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP13591385A Division JPS6169650A (en) 1985-06-24 1985-06-24 Method of widthwise spreading sheet on travel

Publications (2)

Publication Number Publication Date
JPS57160614A true JPS57160614A (en) 1982-10-04
JPH0139897B2 JPH0139897B2 (en) 1989-08-24

Family

ID=12724682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4563081A Granted JPS57160614A (en) 1981-03-30 1981-03-30 Tentering apparatus of running sheet

Country Status (1)

Country Link
JP (1) JPS57160614A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001012418A1 (en) * 1999-08-16 2001-02-22 Trespaphan Gmbh Method and device for guiding a web of material
JP2004020635A (en) * 2002-06-12 2004-01-22 Kuraray Co Ltd Manufacturing method of polyvinyl alcohol film for optical use

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001012418A1 (en) * 1999-08-16 2001-02-22 Trespaphan Gmbh Method and device for guiding a web of material
JP2004020635A (en) * 2002-06-12 2004-01-22 Kuraray Co Ltd Manufacturing method of polyvinyl alcohol film for optical use

Also Published As

Publication number Publication date
JPH0139897B2 (en) 1989-08-24

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