GB951701A - Improvements in or relating to a method of manufacture of tubular articles of plastic material, and injection machine for carrying out this method - Google Patents

Improvements in or relating to a method of manufacture of tubular articles of plastic material, and injection machine for carrying out this method

Info

Publication number
GB951701A
GB951701A GB3307161A GB3307161A GB951701A GB 951701 A GB951701 A GB 951701A GB 3307161 A GB3307161 A GB 3307161A GB 3307161 A GB3307161 A GB 3307161A GB 951701 A GB951701 A GB 951701A
Authority
GB
United Kingdom
Prior art keywords
piston
mould
former
injection
tube
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
GB3307161A
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.)
Rexall Overseas A G
Original Assignee
Rexall Overseas A G
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 Rexall Overseas A G filed Critical Rexall Overseas A G
Publication of GB951701A publication Critical patent/GB951701A/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
    • B29C45/261—Moulds having tubular mould cavities
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding

Landscapes

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

Abstract

951,701. Moulding tubular articles. REXALL OVERSEAS A.G. Sept. 14, 1961 [Sept. 17, 1960], No. 33071/61. Heading B5A. In a method of making thin-walled tubular articles of plastic material a mould 27 is filled with the material by injection and a tube former 39 is then inserted into the mould to force excess material back into an injection cylinder 4. The mould may comprise two shells 27a, 27b opened and closed by fluid-operated pistons 28, 29 carried by an extension 26 of a hollow piston 23. Piston 23 is used to move the mould into engagement with the injection nozzle 3, flow through which is controlled by a fluid-operated rod II extending through the injection piston (Fig. 2, not shown). Piston 23 contains a piston 35 for operating the tubeformer 39. The end 42 of the former 39 pierces the end of the moulded tube at 43. In a modification the tube-former itself is tubular so as to contain a piston-rod which replaces the end 42 of the former 39. Both the injection cylinder and the tube former may have heating and/or cooling means. In a modification the mould 27 consists of a single tubular element.
GB3307161A 1960-09-17 1961-09-14 Improvements in or relating to a method of manufacture of tubular articles of plastic material, and injection machine for carrying out this method Expired GB951701A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1053560A CH362839A (en) 1960-09-17 1960-09-17 Process for manufacturing tubular plastic articles and injection machine for implementing this process

Publications (1)

Publication Number Publication Date
GB951701A true GB951701A (en) 1964-03-11

Family

ID=4364252

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3307161A Expired GB951701A (en) 1960-09-17 1961-09-14 Improvements in or relating to a method of manufacture of tubular articles of plastic material, and injection machine for carrying out this method

Country Status (2)

Country Link
CH (1) CH362839A (en)
GB (1) GB951701A (en)

Also Published As

Publication number Publication date
CH362839A (en) 1962-06-30

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