GB841743A - Improvements in or relating to mixing apparatus - Google Patents

Improvements in or relating to mixing apparatus

Info

Publication number
GB841743A
GB841743A GB9100/58A GB910058A GB841743A GB 841743 A GB841743 A GB 841743A GB 9100/58 A GB9100/58 A GB 9100/58A GB 910058 A GB910058 A GB 910058A GB 841743 A GB841743 A GB 841743A
Authority
GB
United Kingdom
Prior art keywords
teeth
inner member
sections
march
attaching
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
GB9100/58A
Inventor
Thomas Alfred Stanley
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB9100/58A priority Critical patent/GB841743A/en
Publication of GB841743A publication Critical patent/GB841743A/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
    • B29C48/03—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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
    • B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
    • B01F27/2721—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces provided with intermeshing elements
    • 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
    • B29C48/67—Screws having incorporated mixing devices not provided for in groups B29C48/52 - B29C48/66
    • 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
    • B29C48/68—Barrels or cylinders
    • 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
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/687—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having projections with a short length in the barrel direction, e.g. pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2025/91—Direction of flow or arrangement of feed and discharge openings
    • B01F2025/911—Axial flow

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

841,743. Pug mills. IMPERIAL CHEMICAL INDUSTRIES Ltd. March 11, 1959 [March 21, 1958], No. 9100/58. Addition to 787,764. Class 86 The apparatus of the parent Specification is modified to avoid pulsing and consequent ridges in the extruded material by dividing the teeth of one member into a plurality of sections along its length as at 13, 14, successive sections being relatively displaced around the longitudinal axis. Thus when the outer member has two sections 13, 14, Fig. 1, the teeth of one section 14 coincide with the spaces between the teeth of the inner member at the same time as the teeth of the other section 13 overlap the teeth of the inner member, Fig. 3. The teeth are arranged in axial parallel lines which may be straight or helical. The teeth may be angled to assist flow, and may be thicker and smaller, and thus stronger, at the feed end. The inner member may be integral with or separate from the feed screw 10; it may be driven by the feed screw or independently; a torque limiting device may be interposed; other methods of feeding, e.g. gear pumps and pressure melters, may be used. The apparatus is assembled by attaching the outer case 17 over the member 11, successively inserting and locking to the case 17 the parts 14, 13, and attaching the nozzle 18. Heating and cooling methods are described. The apparatus is stated to be particularly suited to the extrusion of the normally solid polymers of ethylene, linear superpolyamides, linear superpolyesters, and polypropylene.
GB9100/58A 1958-03-21 1958-03-21 Improvements in or relating to mixing apparatus Expired GB841743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9100/58A GB841743A (en) 1958-03-21 1958-03-21 Improvements in or relating to mixing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9100/58A GB841743A (en) 1958-03-21 1958-03-21 Improvements in or relating to mixing apparatus

Publications (1)

Publication Number Publication Date
GB841743A true GB841743A (en) 1960-07-20

Family

ID=9865340

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9100/58A Expired GB841743A (en) 1958-03-21 1958-03-21 Improvements in or relating to mixing apparatus

Country Status (1)

Country Link
GB (1) GB841743A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174185A (en) * 1961-05-01 1965-03-23 Metal Box Co Ltd Extrusion of molten thermoplastic material
US3317956A (en) * 1964-12-22 1967-05-09 Hedwin Corp Mixing device for extruding apparatus
US4128342A (en) * 1974-10-09 1978-12-05 Barmag Barmer Maschinenfabrik Ag Mixing apparatus
US4479884A (en) * 1982-03-29 1984-10-30 Lever Brothers Company Detergent bar processing
US4517107A (en) * 1982-03-29 1985-05-14 Lever Brothers Company Detergent bar
US4680132A (en) * 1982-03-26 1987-07-14 Lever Brothers Company Processing detergent bars with a cavity transfer mixer to reduce grittiness
WO1987006523A1 (en) * 1986-04-24 1987-11-05 Northern Lights Trust Of February 14, 1978 Modular mixing apparatus for extruded material
US4749279A (en) * 1981-08-31 1988-06-07 Northern Lights Trust Of February 14, 1978 Modular mixing apparatus for extruded material including rotary for processing modules having variable speed independent drive means
US4840810A (en) * 1985-03-27 1989-06-20 Lever Brothers Company Process for the preparation of an edible fat-containing product
US4844928A (en) * 1985-03-27 1989-07-04 Lever Brothers Company Process for the preparation of an edible fat-containing product
GB2233927A (en) * 1989-07-12 1991-01-23 Sato Iron Works Apparatus for screw extrusion and milling/kneading of soap.
EP0468226A1 (en) * 1990-07-21 1992-01-29 Gebr. Lödige Maschinenbau Gesellschaft mbH Disintegrating device for a mixer or similar
EP2609998A1 (en) * 2011-12-26 2013-07-03 Jtekt Corporation Dispersing device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174185A (en) * 1961-05-01 1965-03-23 Metal Box Co Ltd Extrusion of molten thermoplastic material
US3317956A (en) * 1964-12-22 1967-05-09 Hedwin Corp Mixing device for extruding apparatus
US4128342A (en) * 1974-10-09 1978-12-05 Barmag Barmer Maschinenfabrik Ag Mixing apparatus
US4749279A (en) * 1981-08-31 1988-06-07 Northern Lights Trust Of February 14, 1978 Modular mixing apparatus for extruded material including rotary for processing modules having variable speed independent drive means
US4680132A (en) * 1982-03-26 1987-07-14 Lever Brothers Company Processing detergent bars with a cavity transfer mixer to reduce grittiness
US4479884A (en) * 1982-03-29 1984-10-30 Lever Brothers Company Detergent bar processing
US4517107A (en) * 1982-03-29 1985-05-14 Lever Brothers Company Detergent bar
US4844928A (en) * 1985-03-27 1989-07-04 Lever Brothers Company Process for the preparation of an edible fat-containing product
US4840810A (en) * 1985-03-27 1989-06-20 Lever Brothers Company Process for the preparation of an edible fat-containing product
WO1987006523A1 (en) * 1986-04-24 1987-11-05 Northern Lights Trust Of February 14, 1978 Modular mixing apparatus for extruded material
GB2233927A (en) * 1989-07-12 1991-01-23 Sato Iron Works Apparatus for screw extrusion and milling/kneading of soap.
GB2233927B (en) * 1989-07-12 1993-05-05 Sato Iron Works Screw type extruding apparatus
EP0468226A1 (en) * 1990-07-21 1992-01-29 Gebr. Lödige Maschinenbau Gesellschaft mbH Disintegrating device for a mixer or similar
EP2609998A1 (en) * 2011-12-26 2013-07-03 Jtekt Corporation Dispersing device

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