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GB909449A - Improvements in or relating to injection moulding machines - Google Patents

Improvements in or relating to injection moulding machines

Info

Publication number
GB909449A
GB909449A GB23657/60A GB2365760A GB909449A GB 909449 A GB909449 A GB 909449A GB 23657/60 A GB23657/60 A GB 23657/60A GB 2365760 A GB2365760 A GB 2365760A GB 909449 A GB909449 A GB 909449A
Authority
GB
United Kingdom
Prior art keywords
conveyer
sleeve
piston
injection moulding
annular
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
GB23657/60A
Inventor
Frank Felix Norton
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.)
Dowding & Doll Ltd
Original Assignee
Dowding & Doll Ltd
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 Dowding & Doll Ltd filed Critical Dowding & Doll Ltd
Priority to GB23657/60A priority Critical patent/GB909449A/en
Publication of GB909449A publication Critical patent/GB909449A/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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/5008—Drive means therefor
    • 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
    • B29C45/176—Exchanging the injection unit or parts thereof
    • 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
    • B29C45/1775—Connecting parts, e.g. injection screws, ejectors, to drive means
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/45—Axially movable screws
    • 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

Landscapes

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

Abstract

909,449. Injection moulding. DOWDING & DOLL Ltd. May 31, 1961 [July 6, 1960], No. 23657/60. Class 87(2). In an injection moulding machine having a screw conveyer 4 coupled to and rotated by a driving member 7 which is rotatably connected to an annular piston 13, the thrust of the piston is transmitted to the conveyer 4 through a thrust assembly which is mounted on the conveyer and can be removed to allow the screw conveyer to be withdrawn through the annular piston. As shown, the screw conveyer 4 is coupled by splines to a sleeve 7 which is carried by ball bearings 9 in a frame 10. The sleeve 7 has a gear wheel 8 attached to it which is driven by a pinion (not shown). Axial movement between the sleeve 7 and conveyer 4- is prevented by a circular plate 11 and a split collar 18. The sleeve 7 is connected by a ball bearing 17 to an annular piston 13 in a cylinder 15. When pressure fluid is fed to an annular chamber 16, the piston moves the conveyer and sleeve to the left, the frame 10 sliding on rods 2. When the collar 18 is removed the conveyer 4 can be withdrawn through the centre of the piston 13, the end of which is covered by a removable cap 6.
GB23657/60A 1960-07-06 1960-07-06 Improvements in or relating to injection moulding machines Expired GB909449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB23657/60A GB909449A (en) 1960-07-06 1960-07-06 Improvements in or relating to injection moulding machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23657/60A GB909449A (en) 1960-07-06 1960-07-06 Improvements in or relating to injection moulding machines

Publications (1)

Publication Number Publication Date
GB909449A true GB909449A (en) 1962-10-31

Family

ID=10199203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23657/60A Expired GB909449A (en) 1960-07-06 1960-07-06 Improvements in or relating to injection moulding machines

Country Status (1)

Country Link
GB (1) GB909449A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233288A (en) * 1963-03-21 1966-02-08 Pennsalt Chemicals Corp Molding apparatus
US3509601A (en) * 1968-02-19 1970-05-05 Cincinnati Milling Machine Co Injection molding machine
US3526931A (en) * 1967-07-31 1970-09-08 Lester Eng Co Injection molding machine
EP0640459A1 (en) * 1993-08-27 1995-03-01 Battenfeld Kunststoffmaschinen Ges.m.b.H. Injection unit for injection moulding machines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3233288A (en) * 1963-03-21 1966-02-08 Pennsalt Chemicals Corp Molding apparatus
US3526931A (en) * 1967-07-31 1970-09-08 Lester Eng Co Injection molding machine
US3509601A (en) * 1968-02-19 1970-05-05 Cincinnati Milling Machine Co Injection molding machine
EP0640459A1 (en) * 1993-08-27 1995-03-01 Battenfeld Kunststoffmaschinen Ges.m.b.H. Injection unit for injection moulding machines

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