GB1103547A - Improvements in or relating to extruding or agglomerating machines - Google Patents

Improvements in or relating to extruding or agglomerating machines

Info

Publication number
GB1103547A
GB1103547A GB12533/64A GB1253364A GB1103547A GB 1103547 A GB1103547 A GB 1103547A GB 12533/64 A GB12533/64 A GB 12533/64A GB 1253364 A GB1253364 A GB 1253364A GB 1103547 A GB1103547 A GB 1103547A
Authority
GB
United Kingdom
Prior art keywords
sections
plates
screw
march
sectional area
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
GB12533/64A
Inventor
Harold Arthur Iles
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co 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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB12533/64A priority Critical patent/GB1103547A/en
Publication of GB1103547A publication Critical patent/GB1103547A/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
    • 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
    • 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
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/63—Screws having sections without mixing elements or threads, i.e. having cylinder shaped sections
    • 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
    • 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
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,103,547. Screw presses. DUNLOP RUBBER CO. Ltd. 22, March, 1965 [25, March, 1964], No. 12533/64. Heading B1C. [Also in Division B5] An extrusion moulding machine comprises a sectionalised barrel 4, 5, 6, whose sections are separated by compression plates 7, 8, and a screw 3 having sections 11, 12, 13 separated by threadless portions 14, 15 which substantially coincide in axial position with the plates 7, 8. The flow path 17 for the moulding material is decreased in cross-sectional area in the downstream direction by the provision of curved surfaces 9 on plates 7, 8 and linings 23. Preferably the decrease in cross-sectional area is by one half in passing from one section to the next and preferably the screw sections 11, 12, 13 have one, two and three start threads respectively. Passages 19 for coolant are provided. The moulding material may be polyvinyl chloride or a compound thereof and it is stated that the plasticized material is cut into pellets on emergence from the extrusion die.
GB12533/64A 1964-03-25 1964-03-25 Improvements in or relating to extruding or agglomerating machines Expired GB1103547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB12533/64A GB1103547A (en) 1964-03-25 1964-03-25 Improvements in or relating to extruding or agglomerating machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12533/64A GB1103547A (en) 1964-03-25 1964-03-25 Improvements in or relating to extruding or agglomerating machines

Publications (1)

Publication Number Publication Date
GB1103547A true GB1103547A (en) 1968-02-14

Family

ID=10006362

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12533/64A Expired GB1103547A (en) 1964-03-25 1964-03-25 Improvements in or relating to extruding or agglomerating machines

Country Status (1)

Country Link
GB (1) GB1103547A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2296517A1 (en) * 1975-01-06 1976-07-30 Sterling Extruder Corp TWO-STAGE SINGLE SCREW EXTRUSION PROCESS AND DEVICE
EP0101753A1 (en) * 1982-08-26 1984-03-07 HERMANN BERSTORFF Maschinenbau GmbH Connection of cylinder and flange for screw extruder
CN113694565A (en) * 2021-09-02 2021-11-26 上海盛普机械制造有限公司 Defoaming device with sectional type screw and ceramic bushing and defoaming method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2296517A1 (en) * 1975-01-06 1976-07-30 Sterling Extruder Corp TWO-STAGE SINGLE SCREW EXTRUSION PROCESS AND DEVICE
EP0101753A1 (en) * 1982-08-26 1984-03-07 HERMANN BERSTORFF Maschinenbau GmbH Connection of cylinder and flange for screw extruder
CN113694565A (en) * 2021-09-02 2021-11-26 上海盛普机械制造有限公司 Defoaming device with sectional type screw and ceramic bushing and defoaming method thereof

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