JPS5581120A - Method and apparatus for providing tube inside surface with cut groove - Google Patents

Method and apparatus for providing tube inside surface with cut groove

Info

Publication number
JPS5581120A
JPS5581120A JP15468478A JP15468478A JPS5581120A JP S5581120 A JPS5581120 A JP S5581120A JP 15468478 A JP15468478 A JP 15468478A JP 15468478 A JP15468478 A JP 15468478A JP S5581120 A JPS5581120 A JP S5581120A
Authority
JP
Japan
Prior art keywords
tube
core
inside surface
cutting edges
cut grooves
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
JP15468478A
Other languages
Japanese (ja)
Other versions
JPS6259646B2 (en
Inventor
Shohei Sone
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.)
Mitsubishi Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
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 Mitsubishi Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP15468478A priority Critical patent/JPS5581120A/en
Publication of JPS5581120A publication Critical patent/JPS5581120A/en
Publication of JPS6259646B2 publication Critical patent/JPS6259646B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE: To form cut grooves in the right positions of the inside surface of a tube by inserting a core having cutting edges projected on its outside surface into a moving tube.
CONSTITUTION: A tube 1 is squeezed flat and provided with a fold on its either end by rollers 7 each having a peripheral groove 8 in the central portion. Then the tube 1 advances while sliding along the outside surface of a core 2, with the holds 9 engaging corners 3' at both lateral edges of the core 2, so that the tube 3 advances without deviation in the circumferential direction. Because two cutting edges 11 are symmetrically projected on each of upper and lower faces of the core 2, the outside surface of the tube 1 is provided with cut grooves. Because the tube 1 is pressed by press rollers 12 arranged on the outside of the tube 1 and in register with the cutting edges 11, the tube 1 can be prevented from meandering and provided with cut grooves in the right positions.
COPYRIGHT: (C)1980,JPO&Japio
JP15468478A 1978-12-15 1978-12-15 Method and apparatus for providing tube inside surface with cut groove Granted JPS5581120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15468478A JPS5581120A (en) 1978-12-15 1978-12-15 Method and apparatus for providing tube inside surface with cut groove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15468478A JPS5581120A (en) 1978-12-15 1978-12-15 Method and apparatus for providing tube inside surface with cut groove

Publications (2)

Publication Number Publication Date
JPS5581120A true JPS5581120A (en) 1980-06-18
JPS6259646B2 JPS6259646B2 (en) 1987-12-11

Family

ID=15589650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15468478A Granted JPS5581120A (en) 1978-12-15 1978-12-15 Method and apparatus for providing tube inside surface with cut groove

Country Status (1)

Country Link
JP (1) JPS5581120A (en)

Also Published As

Publication number Publication date
JPS6259646B2 (en) 1987-12-11

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