GB628468A - Improvements in or relating to the mixing and compressing of plastic masses - Google Patents

Improvements in or relating to the mixing and compressing of plastic masses

Info

Publication number
GB628468A
GB628468A GB13335/46A GB1333546A GB628468A GB 628468 A GB628468 A GB 628468A GB 13335/46 A GB13335/46 A GB 13335/46A GB 1333546 A GB1333546 A GB 1333546A GB 628468 A GB628468 A GB 628468A
Authority
GB
United Kingdom
Prior art keywords
spirals
mixing
axis
spiral member
spiral
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
GB13335/46A
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.)
LAVORAZIONE MAT PLAST
Original Assignee
LAVORAZIONE MAT PLAST
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 LAVORAZIONE MAT PLAST filed Critical LAVORAZIONE MAT PLAST
Publication of GB628468A publication Critical patent/GB628468A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/22—Extrusion presses; Dies therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus 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
    • 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
    • B29C48/68—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
    • B29C48/03—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S100/00—Presses
    • Y10S100/903—Pelleters
    • Y10S100/904—Screw
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19555—Varying speed ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

628,468. Extruding plastic materials. SOC.P.A. LAVORAZIONE MATERIE PLASTICHE. May 2, 1946, No. 13335. Convention date, Feb. 15, 1944. [Class 87 (ii)] [Also in Groups II, XXVI and XXX] Apparatus for mixing and compressing thermoplastic material comprises an inner conical spiral member 1 turning about an axis parallel to its own axis but without rotating about this latter axis, in a chamber in the form of a conical spiral in a casing 2. The inner spiral member is of equal pitch but smaller diameter than the outer spiral member and the line of contact of the spirals moves round and displaces the material, fed into the inlet 12, into diminishing chambers formed between the spirals until it is discharged through the die 13. The pitch of the spirals may decrease or increase, to increase or decrease the pressure in the plastic material. The spiral 1 is driven by a worm wheel 6 mounted by means of roller bearings 8 and a thrust bearing 11.
GB13335/46A 1944-02-15 1946-05-02 Improvements in or relating to the mixing and compressing of plastic masses Expired GB628468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT250430X 1944-02-15

Publications (1)

Publication Number Publication Date
GB628468A true GB628468A (en) 1949-08-30

Family

ID=11215515

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13335/46A Expired GB628468A (en) 1944-02-15 1946-05-02 Improvements in or relating to the mixing and compressing of plastic masses

Country Status (7)

Country Link
US (1) US2564880A (en)
BE (1) BE478479A (en)
CH (1) CH250430A (en)
DE (1) DE879914C (en)
FR (1) FR958938A (en)
GB (1) GB628468A (en)
NL (1) NL68958C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909395C (en) * 1951-11-22 1954-04-15 Basf Ag Multiple screw press for processing organic plastic masses
US3046603A (en) * 1958-02-24 1962-07-31 Research Corp Method and apparatus for extrusion
US3304062A (en) * 1964-09-23 1967-02-14 Black Clawson Co Apparatus for mixing and compacting material

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1904884A (en) * 1933-04-18 royle
US1353917A (en) * 1915-10-09 1920-09-28 Frank B Lambert Brick machinery
US2343529A (en) * 1939-11-09 1944-03-07 Brown Frederick Edward Machine for extruding rubber and the like

Also Published As

Publication number Publication date
BE478479A (en) 1900-01-01
DE879914C (en) 1953-06-18
CH250430A (en) 1947-08-31
US2564880A (en) 1951-08-21
NL68958C (en) 1900-01-01
FR958938A (en) 1950-03-21

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