JPS55154132A - Drawn hollow forming method - Google Patents

Drawn hollow forming method

Info

Publication number
JPS55154132A
JPS55154132A JP6285579A JP6285579A JPS55154132A JP S55154132 A JPS55154132 A JP S55154132A JP 6285579 A JP6285579 A JP 6285579A JP 6285579 A JP6285579 A JP 6285579A JP S55154132 A JPS55154132 A JP S55154132A
Authority
JP
Japan
Prior art keywords
parison
cut
core
blow
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
JP6285579A
Other languages
Japanese (ja)
Inventor
Takashi Abe
Kazuo Kudo
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.)
Toppan Inc
Original Assignee
Toppan Printing 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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP6285579A priority Critical patent/JPS55154132A/en
Publication of JPS55154132A publication Critical patent/JPS55154132A/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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • 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
    • B29C48/03—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
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To enable drawn hollow forming only by easy remodelling of an existing device by a method wherein a parison whose part is melted and blocked up is obtained by controlling the extrusion diameter, then it is introduced into a metal mold and cut, and after that biaxial drawing is applied to it by a drawing rod and the blow-in air pressure at the properly adjusted temperature of resin. CONSTITUTION:At the tip of a die head are provided a core 2 and a die 1 for controlling the inner and outer diameters of a parison 7 respectively. When the core 2 moves upward to a large extent, the hollow part of the parison 7 becomes narrow. Then, when the core is moved downward and the narrow part of the hollow part of the parison 7 comes to the position of A', the narrow part is melted and blocked up by a sealer 3, and simultaneously, the support air is blown out from an air orifice 4. Obtaining a fixed length, the parison is introduced into a blow metal mold 6 and cut at a cut line by a cutter. After a drawing blow bin 8 being inserted into a cut end, a drawing rod 9 provided at the tip thereof is extended, thereby the longitudinal drawing of the bottomed parison 7 being performed, while the lateral drawing thereof being performed by the blowing air.
JP6285579A 1979-05-22 1979-05-22 Drawn hollow forming method Pending JPS55154132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6285579A JPS55154132A (en) 1979-05-22 1979-05-22 Drawn hollow forming method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6285579A JPS55154132A (en) 1979-05-22 1979-05-22 Drawn hollow forming method

Publications (1)

Publication Number Publication Date
JPS55154132A true JPS55154132A (en) 1980-12-01

Family

ID=13212325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6285579A Pending JPS55154132A (en) 1979-05-22 1979-05-22 Drawn hollow forming method

Country Status (1)

Country Link
JP (1) JPS55154132A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585232A (en) * 1981-07-02 1983-01-12 Yoshino Kogyosho Co Ltd Method of forming biaxially oriented bottle of synthetic resin
US5213752A (en) * 1990-08-14 1993-05-25 Nissei Asb Machine Co., Ltd. Process of stretch-blow molding
JP2007021916A (en) * 2005-07-15 2007-02-01 Taisei Kako Co Ltd Manufacturing method of hollow molded product
CN102285099A (en) * 2011-07-28 2011-12-21 欧普照明有限公司 Aluminothermic molding mold and molding method for blow molding mask of household ceiling light

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585232A (en) * 1981-07-02 1983-01-12 Yoshino Kogyosho Co Ltd Method of forming biaxially oriented bottle of synthetic resin
US5213752A (en) * 1990-08-14 1993-05-25 Nissei Asb Machine Co., Ltd. Process of stretch-blow molding
JP2007021916A (en) * 2005-07-15 2007-02-01 Taisei Kako Co Ltd Manufacturing method of hollow molded product
JP4656569B2 (en) * 2005-07-15 2011-03-23 大成化工株式会社 Manufacturing method of hollow molded product
CN102285099A (en) * 2011-07-28 2011-12-21 欧普照明有限公司 Aluminothermic molding mold and molding method for blow molding mask of household ceiling light

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