FR2344397A1 - Injection moulding device - has orifice provided with mouthpieces connected to atmos. to prevent collapsing of element walls (NL 20.9.77) - Google Patents

Injection moulding device - has orifice provided with mouthpieces connected to atmos. to prevent collapsing of element walls (NL 20.9.77)

Info

Publication number
FR2344397A1
FR2344397A1 FR7708601A FR7708601A FR2344397A1 FR 2344397 A1 FR2344397 A1 FR 2344397A1 FR 7708601 A FR7708601 A FR 7708601A FR 7708601 A FR7708601 A FR 7708601A FR 2344397 A1 FR2344397 A1 FR 2344397A1
Authority
FR
Grant status
Application
Patent type
Prior art keywords
injection moulding
atmos
mouthpieces
nl
connected
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
FR7708601A
Other languages
French (fr)
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.)
Covema Srl
Original Assignee
COVEMA SRL
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/08Component parts, details or accessories; Auxiliary operations
    • B29C47/12Extrusion nozzles or dies
    • B29C47/20Extrusion nozzles or dies with annular opening, e.g. for tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C47/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C47/0009Extrusion 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 articles
    • B29C47/0028Multi-passage hollow articles, e.g. having at least two holes, e.g. honeycomb articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/60Multitubular or multicompartmented articles, e.g. honeycomb

Abstract

Injection moulding device has the head provided with an orifice composed of members forming between them injection ducts which communicate with the supply duct in the head, and which support a circular array of peripherally spaced rhomboidal members. The members form duct between them and enclose an annular duct associated with a peripheral array of channels, communicating with the atmos. and terminating in a mouthpiece, respectively. The device provides injection moulding pipes having hollow alls sub-divided by radial webs into longitudinally extending compartments. Pipes may be formed into packaging containers.
FR7708601A 1976-03-16 1977-03-16 Injection moulding device - has orifice provided with mouthpieces connected to atmos. to prevent collapsing of element walls (NL 20.9.77) Pending FR2344397A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT2125076A IT1058429B (en) 1976-03-16 1976-03-16 An extruder for the extrusion of hollow tubular elements in plastic and container material obtained with said tubular elements

Publications (1)

Publication Number Publication Date
FR2344397A1 true true FR2344397A1 (en) 1977-10-14

Family

ID=11179035

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7708601A Pending FR2344397A1 (en) 1976-03-16 1977-03-16 Injection moulding device - has orifice provided with mouthpieces connected to atmos. to prevent collapsing of element walls (NL 20.9.77)

Country Status (5)

Country Link
DE (1) DE2710565A1 (en)
DK (1) DK112177A (en)
ES (2) ES227427Y (en)
FR (1) FR2344397A1 (en)
NL (1) NL7702872A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010490A1 (en) * 1978-10-16 1980-04-30 René Kuster Tubes, pipes and hollow structures of plastic material, method and tool for their manufacture
FR2439078A1 (en) * 1978-10-16 1980-05-16 Kuster Rene Extruding hollow tubular profiles - linked by integral oriented polypropylene bridges, for light, stiff screens which can fold or extend
EP0244154A1 (en) * 1986-04-29 1987-11-04 Ceskoslovenska akademie ved Device for making pipings of thermoplastic materials
EP0318434A2 (en) * 1987-11-25 1989-05-31 Luigi Sanicola Extruder for manufacturing a plastic pipe

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1471485A (en) * 1966-03-15 1967-03-03 Tokan Kogyo Co Ltd Method and device for producing panels in synthetic material containing synthetic products and expanded panels obtained

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1471485A (en) * 1966-03-15 1967-03-03 Tokan Kogyo Co Ltd Method and device for producing panels in synthetic material containing synthetic products and expanded panels obtained

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0010490A1 (en) * 1978-10-16 1980-04-30 René Kuster Tubes, pipes and hollow structures of plastic material, method and tool for their manufacture
FR2439078A1 (en) * 1978-10-16 1980-05-16 Kuster Rene Extruding hollow tubular profiles - linked by integral oriented polypropylene bridges, for light, stiff screens which can fold or extend
EP0244154A1 (en) * 1986-04-29 1987-11-04 Ceskoslovenska akademie ved Device for making pipings of thermoplastic materials
EP0318434A2 (en) * 1987-11-25 1989-05-31 Luigi Sanicola Extruder for manufacturing a plastic pipe
EP0318434A3 (en) * 1987-11-25 1990-07-11 Luigi Sanicola Method of manufacturing a plastics pipe, apparatus for carrying out the method and use of the pipe

Also Published As

Publication number Publication date Type
DE2710565A1 (en) 1977-09-22 application
ES230249U (en) 1977-10-16 application
DK112177A (en) 1977-09-17 application
ES230249Y (en) 1978-02-16 grant
ES227427U (en) 1977-10-16 application
ES227427Y (en) 1978-02-16 grant
NL7702872A (en) 1977-09-20 application

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