JPS5766934A - Manufacture of synthetic resin tubular formed article - Google Patents

Manufacture of synthetic resin tubular formed article

Info

Publication number
JPS5766934A
JPS5766934A JP55144122A JP14412280A JPS5766934A JP S5766934 A JPS5766934 A JP S5766934A JP 55144122 A JP55144122 A JP 55144122A JP 14412280 A JP14412280 A JP 14412280A JP S5766934 A JPS5766934 A JP S5766934A
Authority
JP
Japan
Prior art keywords
tube
periphery
mold
ring plate
synthetic resin
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
JP55144122A
Other languages
Japanese (ja)
Other versions
JPS6157178B2 (en
Inventor
Takashi Yonehara
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.)
TOKYO COPAL CHEM
TOKYO COPAL KAGAKU KK
TOUKIYOU KOPARU KAGAKU KK
Original Assignee
TOKYO COPAL CHEM
TOKYO COPAL KAGAKU KK
TOUKIYOU KOPARU KAGAKU KK
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 TOKYO COPAL CHEM, TOKYO COPAL KAGAKU KK, TOUKIYOU KOPARU KAGAKU KK filed Critical TOKYO COPAL CHEM
Priority to JP55144122A priority Critical patent/JPS5766934A/en
Publication of JPS5766934A publication Critical patent/JPS5766934A/en
Publication of JPS6157178B2 publication Critical patent/JPS6157178B2/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
    • 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
    • B29C48/907—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 using adjustable calibrators, e.g. the dimensions of the calibrator being changeable
    • 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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/903—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 externally
    • 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
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To improve tear strength and blocking resistance of a tube by moving the freely rotatable disk type mold having periphery of an uneven pattern relatively to the tube extruded and contacting the uneven part of the mold to the outer periphery of the tube. CONSTITUTION:The gel state tube 19 is formed by continuous extrusion through the die 2 of synthetic resin mixed and melted in an extruder 1 and inflated by air from the air orifice 3. When the tube 19 reaches to the inside of the assembly of rotating molds, the protruded part 13a at the periphery of the mold 13 contacts to the peripheral face of the tube 19, however the tube 19 moves upward constantly, then the locus of contacting place of the protruded part 13a to the periphery of the tube 19 is formed helically. Meanwhile, the second ring plate 11 rotates in reverse direction against to the first ring plate 9, the locus of contacting place of the periphery 13a of the mold 13 to the periphery of the tube 19 becomes a reverse direction helix against the case of said ring plate 9.
JP55144122A 1980-10-15 1980-10-15 Manufacture of synthetic resin tubular formed article Granted JPS5766934A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55144122A JPS5766934A (en) 1980-10-15 1980-10-15 Manufacture of synthetic resin tubular formed article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55144122A JPS5766934A (en) 1980-10-15 1980-10-15 Manufacture of synthetic resin tubular formed article

Publications (2)

Publication Number Publication Date
JPS5766934A true JPS5766934A (en) 1982-04-23
JPS6157178B2 JPS6157178B2 (en) 1986-12-05

Family

ID=15354699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55144122A Granted JPS5766934A (en) 1980-10-15 1980-10-15 Manufacture of synthetic resin tubular formed article

Country Status (1)

Country Link
JP (1) JPS5766934A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010036392A (en) * 2008-08-01 2010-02-18 Toppan Forms Co Ltd Synthetic resin multilayer film and bag using this film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010036392A (en) * 2008-08-01 2010-02-18 Toppan Forms Co Ltd Synthetic resin multilayer film and bag using this film

Also Published As

Publication number Publication date
JPS6157178B2 (en) 1986-12-05

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