ES378263A1 - Extrusion-blowing of hollow bodies - Google Patents

Extrusion-blowing of hollow bodies

Info

Publication number
ES378263A1
ES378263A1 ES378263A ES378263A ES378263A1 ES 378263 A1 ES378263 A1 ES 378263A1 ES 378263 A ES378263 A ES 378263A ES 378263 A ES378263 A ES 378263A ES 378263 A1 ES378263 A1 ES 378263A1
Authority
ES
Spain
Prior art keywords
extrudate
mould
blowing
neck
extrusion
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.)
Expired
Application number
ES378263A
Other languages
Spanish (es)
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.)
Deutsche Babcock and Wilcox AG
Original Assignee
Deutsche Babcock and Wilcox AG
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 Deutsche Babcock and Wilcox AG filed Critical Deutsche Babcock and Wilcox AG
Publication of ES378263A1 publication Critical patent/ES378263A1/en
Expired 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B29C49/0411—Means for defining the wall or layer thickness
    • B29C49/04112—Means for defining the wall or layer thickness for varying the thickness
    • 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
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04—Extrusion blow-moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • B29B17/0005—Direct recuperation and re-use of scrap material during moulding operation, i.e. feed-back of used material
    • 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
    • B29C49/28—Blow-moulding apparatus
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/48—Moulds
    • B29C49/50—Moulds having cutting or deflashing means
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/72—Deflashing outside the mould
    • B29C2049/725—Means for removing the deflashed parts from the deflashing area, e.g. burrs being removed from the deflashing area by a conveyor
    • 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
    • B29C49/006—Blow-moulding plants, e.g. using several blow-moulding apparatuses cooperating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/62—Plastics recycling; Rubber recycling

Abstract

In an extrusion-blow-moulding method a tubular extrudate is closed prior to its entry into a mould comprising split mould halves which close on the extrudate, an upper lip of the mould engaging the extrudate to close the remaining portion thereof while avoiding engagement of the lower end of the extrudate. The mould halves may carry means to grip the neck of the extrudate during blowing which thereafter retract to enable severing of waste from the neck by a reciprocable cutter. The mould may also include a core to form a recess in the bottom of each moulded container and may also act as an ejector for the moulded containers. A plurality of extruders and associated blowmoulds may be placed side-by-side forming a large production plant, which may also include means for waste recirculation, handling, filling, stoppering and packing. The containers may have reinforcements, labels, faucets &c. incorporated therein. Air is supplied to the extrudate from the extruder prior to blowing to prevent wall collapse, air pressure being regulated to vary the bottom wall thickness of the article.
ES378263A 1969-04-04 1970-04-04 Extrusion-blowing of hollow bodies Expired ES378263A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6910372A FR2029992A5 (en) 1969-04-04 1969-04-04

Publications (1)

Publication Number Publication Date
ES378263A1 true ES378263A1 (en) 1972-05-16

Family

ID=9031921

Family Applications (1)

Application Number Title Priority Date Filing Date
ES378263A Expired ES378263A1 (en) 1969-04-04 1970-04-04 Extrusion-blowing of hollow bodies

Country Status (11)

Country Link
AT (1) AT322831B (en)
BE (1) BE746422A (en)
BR (1) BR7017313D0 (en)
CA (1) CA945319A (en)
CH (1) CH504950A (en)
CS (1) CS161108B2 (en)
DE (5) DE2064930A1 (en)
ES (1) ES378263A1 (en)
FR (1) FR2029992A5 (en)
GB (1) GB1270853A (en)
NL (1) NL7002263A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2255276A1 (en) * 1972-11-11 1974-05-22 Stefan Fischer METHOD AND DEVICE FOR MANUFACTURING HOLLOW BODIES FROM WARMFORMABLE PLASTIC
FR2764231B1 (en) * 1997-06-05 1999-08-27 Batmag Sa BLOW MOLDING METHOD AND DEVICE
IT1299973B1 (en) * 1998-04-16 2000-04-04 Techne Technipack Engineering AUTOMATIC MACHINE FOR THE PRODUCTION, FOR THE CONTROL, FOR THE FILLING AND CAPPING OF THERMOPLASTIC BOTTLES.
CN104070617A (en) * 2013-03-26 2014-10-01 防城港市港口区宏达塑料厂 BOPA production marginal material recovery system
CN114986852B (en) * 2022-06-01 2024-02-20 安徽万有新材料有限公司 Plastic bottle's production processingequipment

Also Published As

Publication number Publication date
FR2029992A5 (en) 1970-10-23
DE2002914A1 (en) 1970-10-15
DE2064931A1 (en) 1971-08-19
BE746422A (en) 1970-07-31
AT322831B (en) 1975-06-10
DE2064930A1 (en) 1971-08-05
CS161108B2 (en) 1975-05-04
CH504950A (en) 1971-03-31
DE2064928A1 (en) 1971-09-09
BR7017313D0 (en) 1973-04-17
GB1270853A (en) 1972-04-19
DE2064929A1 (en) 1971-08-19
NL7002263A (en) 1970-10-06
CA945319A (en) 1974-04-16

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