GB1101007A - Injection moulds and plastics tumblers produced therewith - Google Patents

Injection moulds and plastics tumblers produced therewith

Info

Publication number
GB1101007A
GB1101007A GB1987065A GB1987065A GB1101007A GB 1101007 A GB1101007 A GB 1101007A GB 1987065 A GB1987065 A GB 1987065A GB 1987065 A GB1987065 A GB 1987065A GB 1101007 A GB1101007 A GB 1101007A
Authority
GB
United Kingdom
Prior art keywords
container
wall
protuberance
ribs
plastics
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
GB1987065A
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.)
Netstal Maschinen AG
Original Assignee
Maschinenfabrik und Giesserei Netstal 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
Priority claimed from CH617464A external-priority patent/CH410374A/en
Priority claimed from CH163265A external-priority patent/CH415321A/en
Application filed by Maschinenfabrik und Giesserei Netstal AG filed Critical Maschinenfabrik und Giesserei Netstal AG
Publication of GB1101007A publication Critical patent/GB1101007A/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/36—Moulds having means for locating or centering cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0046—Details relating to the filling pattern or flow paths or flow characteristics of moulding material in the mould cavity
    • B29C2045/0051—Flow adjustment by throttles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

1,101,007. Injection moulds. MASCHINEN FABRIK & GIESSEREI NETSTAL A.G. 11 May, 1965 [11 May, 1964; 5 Feb., 1965], No. 19870/65. Heading B5A. [Also in Division A4] Plastics containers, in particular drinking cups, are produced by using an injection mould comprising a female part 1, having a frustoconical, cylindrical or spherically surfaced protuberance 5 and a male part 2, located on part 1 by an annulus 2b, and having a recess 6 which substantially corresponds to the protuberance 5. Thermoplastics moulding material is injected through aperture 4, and according to the invention, an excess pressure developing at X, say, causes gap Z to narrow and gap P to widen, so that more material flows to point Y thereby equalizing the pressures. This action generally ensures that during the moulding process the wall of the container is of uniform thickness. The container may be longitudinally ribbed, Fig. 2 (not shown), ribs (14) being of semi-circular, trapezoidal or triangular cross-section and preferably out-standing from wall (13) by a distance equal to the thickness of the wall. Alternatively, the ribs may extend over part only of the height of the container, or be at an angle to the longitudinal axis of the container or run peripherally thereof.
GB1987065A 1964-05-11 1965-05-11 Injection moulds and plastics tumblers produced therewith Expired GB1101007A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH617464A CH410374A (en) 1964-05-11 1964-05-11 Injection mold for plastic injection molding machines
CH163265A CH415321A (en) 1965-02-05 1965-02-05 cups

Publications (1)

Publication Number Publication Date
GB1101007A true GB1101007A (en) 1968-01-31

Family

ID=25688217

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1987065A Expired GB1101007A (en) 1964-05-11 1965-05-11 Injection moulds and plastics tumblers produced therewith

Country Status (3)

Country Link
GB (1) GB1101007A (en)
NL (1) NL6505070A (en)
SE (1) SE314508B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261186A (en) * 1990-01-10 1993-05-12 Wpi Acquisition Corp Aligning golf ball mould halves
US5217732A (en) * 1991-05-17 1993-06-08 Landis Plastics, Inc. Flash suppressing mold apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2261186A (en) * 1990-01-10 1993-05-12 Wpi Acquisition Corp Aligning golf ball mould halves
US5217732A (en) * 1991-05-17 1993-06-08 Landis Plastics, Inc. Flash suppressing mold apparatus

Also Published As

Publication number Publication date
NL6505070A (en) 1965-11-12
SE314508B (en) 1969-09-08

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