JPS5590329A - Blow molding head - Google Patents

Blow molding head

Info

Publication number
JPS5590329A
JPS5590329A JP16349178A JP16349178A JPS5590329A JP S5590329 A JPS5590329 A JP S5590329A JP 16349178 A JP16349178 A JP 16349178A JP 16349178 A JP16349178 A JP 16349178A JP S5590329 A JPS5590329 A JP S5590329A
Authority
JP
Japan
Prior art keywords
plunger
sequence
parison
storage chamber
manner
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
JP16349178A
Other languages
Japanese (ja)
Inventor
Sadahiko Shintani
Kotaro Kawabata
Hisahiko Fukase
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.)
IHI Corp
Original Assignee
IHI Corp
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 IHI Corp filed Critical IHI Corp
Priority to JP16349178A priority Critical patent/JPS5590329A/en
Publication of JPS5590329A publication Critical patent/JPS5590329A/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
    • B29C48/03—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
    • B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
    • 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
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams

Landscapes

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

Abstract

PURPOSE:To save material at the time of material change and improve the parison surface condition thru the first-in and first-out method by a mechanism wherein a plunger is provided slidably between a head-body and a core, and making a hole for the passage of the material at the plunger. CONSTITUTION:Melted material flows down through a vertical hole 6 of a plunger 5 from a material feed inlet 8 and is stored into a storage chamber 7. As the material accumulates, the plunger 5 rises in such a manner that material to be loaded piles one upon another in sequence. When the material is accumulated up to a given level in the storage chamber 7, an injection cylinder 13 is stretched to push the plunger down and extrudes the material in sequence from the bottom of the chamber 7 through a nozzle 17 to form a parison 18. Such the first-in/first-out technique allows the production of molding of high quality. With the lowering of the plunger scrapes the material whenever attached to the inner surface of the material is created because of smaller sectional area of the vertical hole 6 and prevents the retention of the material. In this manner, material for the proceeding extrusion can be limited at the material change.
JP16349178A 1978-12-28 1978-12-28 Blow molding head Pending JPS5590329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16349178A JPS5590329A (en) 1978-12-28 1978-12-28 Blow molding head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16349178A JPS5590329A (en) 1978-12-28 1978-12-28 Blow molding head

Publications (1)

Publication Number Publication Date
JPS5590329A true JPS5590329A (en) 1980-07-08

Family

ID=15774865

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16349178A Pending JPS5590329A (en) 1978-12-28 1978-12-28 Blow molding head

Country Status (1)

Country Link
JP (1) JPS5590329A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5256049A (en) * 1990-06-01 1993-10-26 Mauser-Werke Gmbh Storage head for a blow molding machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5256049A (en) * 1990-06-01 1993-10-26 Mauser-Werke Gmbh Storage head for a blow molding machine
US5460504A (en) * 1990-06-01 1995-10-24 Mauser-Werke Gmbh Storage head for a blow molding machine

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