JPS56169043A - Continuous tapping in pipe molding - Google Patents

Continuous tapping in pipe molding

Info

Publication number
JPS56169043A
JPS56169043A JP7330780A JP7330780A JPS56169043A JP S56169043 A JPS56169043 A JP S56169043A JP 7330780 A JP7330780 A JP 7330780A JP 7330780 A JP7330780 A JP 7330780A JP S56169043 A JPS56169043 A JP S56169043A
Authority
JP
Japan
Prior art keywords
pipe
continuously
screw
tap
compressed air
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
JP7330780A
Other languages
Japanese (ja)
Inventor
Yukio Hamakawa
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP7330780A priority Critical patent/JPS56169043A/en
Publication of JPS56169043A publication Critical patent/JPS56169043A/en
Pending 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/902—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies internally
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To manufacture continuously, efficiently and without generating chips a pipe which is provided with a screw part inside by a method wherein the inner surface of the continuously extrusion molded pipe is worked by tapping. CONSTITUTION:Molding material which is supplied from a hopper 5, heated and melted is extruded continuously by an extrusion screw 6 from a position between a die 2 and a mandrel 8 to provide a pipe 3. At that time, a tap 4 is driven simultaneously so that the speed in the advancing direction of the pitch of the screw part may be equal to the extruding speed of the pipe 3. On one hand, while the pipe 3 passes through a cooling sleeve 12, the inner surface of the resin of the pipe 3 is pushed against the tap 4 by the compressed air B supplied under pressure from a pipe 13, a pipe 3 is shaped by compressed air A from a pipe 14 to prepare the pipe 3 provided with a screw inside.
JP7330780A 1980-05-31 1980-05-31 Continuous tapping in pipe molding Pending JPS56169043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7330780A JPS56169043A (en) 1980-05-31 1980-05-31 Continuous tapping in pipe molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7330780A JPS56169043A (en) 1980-05-31 1980-05-31 Continuous tapping in pipe molding

Publications (1)

Publication Number Publication Date
JPS56169043A true JPS56169043A (en) 1981-12-25

Family

ID=13514369

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7330780A Pending JPS56169043A (en) 1980-05-31 1980-05-31 Continuous tapping in pipe molding

Country Status (1)

Country Link
JP (1) JPS56169043A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106217817A (en) * 2016-08-19 2016-12-14 深圳市沃尔核材股份有限公司 A kind of stay tube and extruder head thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106217817A (en) * 2016-08-19 2016-12-14 深圳市沃尔核材股份有限公司 A kind of stay tube and extruder head thereof

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