FR2322722A1 - Parison extrusion dies for blow moulding - producing grooved containers with control of specific strength and surface texture - Google Patents

Parison extrusion dies for blow moulding - producing grooved containers with control of specific strength and surface texture

Info

Publication number
FR2322722A1
FR2322722A1 FR7527530A FR7527530A FR2322722A1 FR 2322722 A1 FR2322722 A1 FR 2322722A1 FR 7527530 A FR7527530 A FR 7527530A FR 7527530 A FR7527530 A FR 7527530A FR 2322722 A1 FR2322722 A1 FR 2322722A1
Authority
FR
France
Prior art keywords
parison
extrusion
specific strength
surface texture
dies
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
FR7527530A
Other languages
French (fr)
Other versions
FR2322722B1 (en
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.)
GANTZER JEAN LOUIS
Original Assignee
GANTZER JEAN LOUIS
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 GANTZER JEAN LOUIS filed Critical GANTZER JEAN LOUIS
Priority to FR7527530A priority Critical patent/FR2322722A1/en
Publication of FR2322722A1 publication Critical patent/FR2322722A1/en
Application granted granted Critical
Publication of FR2322722B1 publication Critical patent/FR2322722B1/fr
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
    • B29C48/30—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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/074—Preforms or parisons characterised by their configuration having ribs or protrusions
    • 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
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/074—Preforms or parisons characterised by their configuration having ribs or protrusions
    • B29C2949/0741—Preforms or parisons characterised by their configuration having ribs or protrusions longitudinal, e.g. from top to bottom
    • 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
    • B29C48/03—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
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/003—Tubular articles having irregular or rough surfaces

Abstract

Mfr. of blow moulded containers having an enhanced strength/wt. ratio (specific strength) due to use of longitudinal and/or circumferential grooves on the inner and/or outer surfaces. Longitudinal grooves are generated by using parison extrusion dies and/or mandrels in with surface ribs parallel to the extrusion axis. Transverse ribs are produced by applying a rotary cutter to the parison surfaces during extrusion. Internal transverse cuts are made using an inclined rotary tool mounted on a shaft coaxial with the core mandrel and driven by a worm drive passing through one of the mandrel supports. Dies are suitable for mfr. of mouldings having a cellular appearance and texture. The degree of weight redn. and the surface texture can be varied, esp. by controlling use of the rotary cutting tool(s). The effective parison wall thickness cna also thus be varied along its length. Interchangeable cam pillars can be used to adjust blade inclination to suit different extrusion rates or groove patterns.
FR7527530A 1975-09-04 1975-09-04 Parison extrusion dies for blow moulding - producing grooved containers with control of specific strength and surface texture Granted FR2322722A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7527530A FR2322722A1 (en) 1975-09-04 1975-09-04 Parison extrusion dies for blow moulding - producing grooved containers with control of specific strength and surface texture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7527530A FR2322722A1 (en) 1975-09-04 1975-09-04 Parison extrusion dies for blow moulding - producing grooved containers with control of specific strength and surface texture

Publications (2)

Publication Number Publication Date
FR2322722A1 true FR2322722A1 (en) 1977-04-01
FR2322722B1 FR2322722B1 (en) 1979-04-27

Family

ID=9159735

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7527530A Granted FR2322722A1 (en) 1975-09-04 1975-09-04 Parison extrusion dies for blow moulding - producing grooved containers with control of specific strength and surface texture

Country Status (1)

Country Link
FR (1) FR2322722A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450155A1 (en) * 1979-02-28 1980-09-26 Oreal Grooved mandrels for extrusion of blow moulding parisons - to make plastics containers look like glass
US4255110A (en) * 1977-02-15 1981-03-10 Japan Styrene Paper Corporation Apparatus for producing corrugated foamed plastic sheet
EP0870592A1 (en) * 1997-04-08 1998-10-14 Ball Corporation Method and apparatus for producing stretch blow molded articles
EP1088763A3 (en) * 1999-09-03 2003-08-20 RPC Verpackungen Kutenholz GmbH Plastic container resistant to pressure differences

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2161842A1 (en) * 1971-12-03 1973-07-13 Hureau Jean Claude Mesh extrusion dies - for cutting holes in helical or hoop arrays in a tubular extrudate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2161842A1 (en) * 1971-12-03 1973-07-13 Hureau Jean Claude Mesh extrusion dies - for cutting holes in helical or hoop arrays in a tubular extrudate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255110A (en) * 1977-02-15 1981-03-10 Japan Styrene Paper Corporation Apparatus for producing corrugated foamed plastic sheet
FR2450155A1 (en) * 1979-02-28 1980-09-26 Oreal Grooved mandrels for extrusion of blow moulding parisons - to make plastics containers look like glass
EP0870592A1 (en) * 1997-04-08 1998-10-14 Ball Corporation Method and apparatus for producing stretch blow molded articles
EP1088763A3 (en) * 1999-09-03 2003-08-20 RPC Verpackungen Kutenholz GmbH Plastic container resistant to pressure differences

Also Published As

Publication number Publication date
FR2322722B1 (en) 1979-04-27

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Legal Events

Date Code Title Description
ST Notification of lapse