GB909555A - Improvements in or relating to the manufacture of tubes of thermoplastic material - Google Patents

Improvements in or relating to the manufacture of tubes of thermoplastic material

Info

Publication number
GB909555A
GB909555A GB1029761A GB1029761A GB909555A GB 909555 A GB909555 A GB 909555A GB 1029761 A GB1029761 A GB 1029761A GB 1029761 A GB1029761 A GB 1029761A GB 909555 A GB909555 A GB 909555A
Authority
GB
United Kingdom
Prior art keywords
core
mould
supporting member
moved
moulds
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
GB1029761A
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.)
ROSEDALE ASSOCIATED MANUFACTUR
Original Assignee
ROSEDALE ASSOCIATED MANUFACTUR
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 ROSEDALE ASSOCIATED MANUFACTUR filed Critical ROSEDALE ASSOCIATED MANUFACTUR
Publication of GB909555A publication Critical patent/GB909555A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

909,555. Moulds for injection moulding. ROSEDALE ASSOCIATED MANUFACTURERS Ltd. March 21, 1961 [Aug. 8, 1960], No. 10297/61. Class 87(2). In a method of manufacturing tubes of synthetic plastic material having a closed end, the material is injected through openings 4, 5, Fig. 1, at one end of a mould 1 containing a core 3 supported at the other end by a movable core supporting member 9, the member 9 being moved by fluid pressure when the mould is partially filled to provide a gap between the core 3 and the member 9 to receive material forming the closed end of the tube. A projection 10 on the member 9 engages with a recess 8 in the core 3. As material is forced into the mould the pressure therein builds up and forces the member 9, against the action of a spring 11, away from the core 3. In an alternative embodiment, Fig. 3, a core supporting member 22 is moved in timed sequence by an air cylinder 27 which actuates a slidable cam member 26 and a cam 24 fixed to the supporting member 22. Air trapped in the mould escapes through a central bore 31 in the core and the finished tube is ejected by air under pressure supplied between the supporting member 22 and the bore in which it moves. Several moulds and cores may be provided in one mould body 13 for simultaneous operation.
GB1029761A 1960-08-08 1961-03-21 Improvements in or relating to the manufacture of tubes of thermoplastic material Expired GB909555A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEN0018743 1960-08-08

Publications (1)

Publication Number Publication Date
GB909555A true GB909555A (en) 1962-10-31

Family

ID=7340672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1029761A Expired GB909555A (en) 1960-08-08 1961-03-21 Improvements in or relating to the manufacture of tubes of thermoplastic material

Country Status (1)

Country Link
GB (1) GB909555A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3301928A (en) * 1963-06-17 1967-01-31 Owens Illinois Inc Method of and apparatus for making a blown plastic article
US3314105A (en) * 1963-06-17 1967-04-18 Owens Illinois Inc Apparatus for injection molding a blowable parison
US3526687A (en) * 1966-04-25 1970-09-01 Emery I Valyi Method for injection molding a parison
EP0315586A1 (en) * 1987-10-31 1989-05-10 Schöttli Ag Hot runner channel injection mould for producing throw-away syringes and the like
EP0381223A2 (en) * 1989-02-02 1990-08-08 Friedrich Theysohn GmbH Method for moulding a box-shaped container by injection
WO2009046924A1 (en) 2007-10-08 2009-04-16 Thomas Sahiri Method and device for producing a cuvette and cuvette produced using said method
US20130196020A1 (en) * 2012-01-31 2013-08-01 Nissei Asb Machine Co., Ltd. Mold apparatus, injection molding apparatus, and injection molding method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3301928A (en) * 1963-06-17 1967-01-31 Owens Illinois Inc Method of and apparatus for making a blown plastic article
US3314105A (en) * 1963-06-17 1967-04-18 Owens Illinois Inc Apparatus for injection molding a blowable parison
US3526687A (en) * 1966-04-25 1970-09-01 Emery I Valyi Method for injection molding a parison
EP0315586A1 (en) * 1987-10-31 1989-05-10 Schöttli Ag Hot runner channel injection mould for producing throw-away syringes and the like
US5009587A (en) * 1987-10-31 1991-04-23 Schottli Ag Injection molding machine for making tubular workpieces from plastic material
EP0381223A2 (en) * 1989-02-02 1990-08-08 Friedrich Theysohn GmbH Method for moulding a box-shaped container by injection
EP0381223A3 (en) * 1989-02-02 1991-07-03 Friedrich Theysohn GmbH Method for moulding a box-shaped container by injection
WO2009046924A1 (en) 2007-10-08 2009-04-16 Thomas Sahiri Method and device for producing a cuvette and cuvette produced using said method
US8351030B2 (en) 2007-10-08 2013-01-08 Thomas Sahiri Method and device for producing a cuvette and cuvette produced using said method
US20130196020A1 (en) * 2012-01-31 2013-08-01 Nissei Asb Machine Co., Ltd. Mold apparatus, injection molding apparatus, and injection molding method
US8889053B2 (en) * 2012-01-31 2014-11-18 Nissei Asb Machine Co., Ltd. Mold apparatus, injection molding apparatus, and injection molding method

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