JPS55104932A - Straight glass tube forming method and apparatus - Google Patents

Straight glass tube forming method and apparatus

Info

Publication number
JPS55104932A
JPS55104932A JP1062679A JP1062679A JPS55104932A JP S55104932 A JPS55104932 A JP S55104932A JP 1062679 A JP1062679 A JP 1062679A JP 1062679 A JP1062679 A JP 1062679A JP S55104932 A JPS55104932 A JP S55104932A
Authority
JP
Japan
Prior art keywords
tube
straight glass
glass tube
heating
roller
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
JP1062679A
Other languages
Japanese (ja)
Inventor
Yoichi Ikeuchi
Toshiteru Tomita
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 DENKI SYLVANIA KK
NEC Home Electronics Ltd
Original Assignee
NIPPON DENKI SYLVANIA KK
NEC Home Electronics 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 NIPPON DENKI SYLVANIA KK, NEC Home Electronics Ltd filed Critical NIPPON DENKI SYLVANIA KK
Priority to JP1062679A priority Critical patent/JPS55104932A/en
Publication of JPS55104932A publication Critical patent/JPS55104932A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/04—Re-forming tubes or rods
    • C03B23/09—Reshaping the ends, e.g. as grooves, threads or mouths
    • C03B23/095—Reshaping the ends, e.g. as grooves, threads or mouths by rolling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)

Abstract

PURPOSE: To make both end smaller-diameter portions of a straight glass tube uniform in thickness and enhance the product yield by uniformly heating both ends of the tube cut into predetermined size and reducing the heated ends in diameter with a pair of facing rotary bodies each composed of a forming roller, rotary rollers, etc. arranged in fixed places.
CONSTITUTION: After heating both ends of each unformed straight glass tube 12 on conveyor 11 with heating means 13, tube 12 is cut into predetermined size with cutter 14 and passed through mouth baking process 15. Straight glass tube 12' with both ends baked is then supplied to a pair of rotary bodies 16 symmetrically moving toward both sides and each provided with forming roller 27 at the central position and a plurality of rotary rollers 28, round roller 27, moving in the peripheral direction of roller 27 while opening or shutting. Both ends of tube 12' are preheated through feed position (a), position setter (b) and preheater (c), and tube 12' is stopped at heating positions (d), (e), (f) in succession to uniformly heat both ends with burners 22. Next heated tube 12' is fed to forming position (g), where both end smaller-diameter portions can freely be varied in thickness with rollers 27, 28. Thus, the yield of straight glass tubes is enhanced.
COPYRIGHT: (C)1980,JPO&Japio
JP1062679A 1979-01-31 1979-01-31 Straight glass tube forming method and apparatus Pending JPS55104932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1062679A JPS55104932A (en) 1979-01-31 1979-01-31 Straight glass tube forming method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1062679A JPS55104932A (en) 1979-01-31 1979-01-31 Straight glass tube forming method and apparatus

Publications (1)

Publication Number Publication Date
JPS55104932A true JPS55104932A (en) 1980-08-11

Family

ID=11755418

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1062679A Pending JPS55104932A (en) 1979-01-31 1979-01-31 Straight glass tube forming method and apparatus

Country Status (1)

Country Link
JP (1) JPS55104932A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102503090A (en) * 2011-10-19 2012-06-20 姚争富 Opening rounding machine of thermos glass liner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102503090A (en) * 2011-10-19 2012-06-20 姚争富 Opening rounding machine of thermos glass liner

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