GB1457103A - Mixing extruder - Google Patents

Mixing extruder

Info

Publication number
GB1457103A
GB1457103A GB1419275A GB1419275A GB1457103A GB 1457103 A GB1457103 A GB 1457103A GB 1419275 A GB1419275 A GB 1419275A GB 1419275 A GB1419275 A GB 1419275A GB 1457103 A GB1457103 A GB 1457103A
Authority
GB
United Kingdom
Prior art keywords
zone
extruder
materials
worm
conveyance
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
GB1419275A
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Publication of GB1457103A publication Critical patent/GB1457103A/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
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
    • B29C48/767—Venting, drying means; Degassing means in the extruder apparatus in screw extruders through a degassing opening of a barrel
    • 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
    • B29C48/268—Throttling of the flow, e.g. for cooperating with plasticising elements or for degassing
    • 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
    • B29C48/285—Feeding the extrusion material to the extruder
    • 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
    • B29C48/03—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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1457103 Mixing extruder FRIED KRUPP GmbH 7 April 1975 [8 April 1974] 14192/75 Heading B1C A mixing extruder for processing rubber or plastics materials having an extruder worm 2 is characterised by the provision, in the direction of conveyance of materials by said worm, of three consecutive zones 3, 7 and 8, the first, 3, being adapted to be closed periodically on all sides so as to form a closed mixing chamber which when opened allows discharge of mixed materials to the second zone 7, the second zone being a storage and conveyance zone and having a volume 9 sufficiently large to provide a buffer for the materials which are intermittently charged thereto and continuously discharged therefrom to the third zone 8, the third zone 8 being an expulsion zone serving essentially for conveyance of the material to the discharge of the extruder. The mixing chamber 3 is closed by a shut-off device 5 comprising pneumatically or hydraulically operated slides 15, 16 Fig. 3 and by a plunger 6 in a charging chute 13. The storage zone has a degassing connection 10 connectible to a vacuum pump, and cavities 12 in the worm and walls of the extruder provide for circulation of cooling water. The extruder discharges to a pair of rolls 11 and the discharge material is formed into a sheet.
GB1419275A 1974-04-08 1975-04-07 Mixing extruder Expired GB1457103A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2417116A DE2417116C2 (en) 1974-04-08 1974-04-08 Mixing extruder

Publications (1)

Publication Number Publication Date
GB1457103A true GB1457103A (en) 1976-12-01

Family

ID=5912502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1419275A Expired GB1457103A (en) 1974-04-08 1975-04-07 Mixing extruder

Country Status (4)

Country Link
CH (1) CH579453A5 (en)
DE (1) DE2417116C2 (en)
FR (1) FR2266590B1 (en)
GB (1) GB1457103A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009059760A2 (en) * 2007-11-09 2009-05-14 Leistritz Aktiengesellschaft Screw extruder with plunger feeder

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154536A (en) * 1977-07-25 1979-05-15 Beloit Corporation High efficiency injection molding screw
FR2495051A1 (en) * 1980-11-28 1982-06-04 Pont A Mousson Injection moulding device - in which injection section is moved bodily to the mould and includes facility for avoiding breaking reinforcing fibres
FR2510472A1 (en) * 1981-07-28 1983-02-04 Ouest Cie Screw tip valve for injection moulding fibre filled materials - esp. for materials contg. fibres up to 50mm long
DE3275070D1 (en) * 1982-08-26 1987-02-19 Berstorff Gmbh Masch Hermann EXTRUDER WITH VENT ZONE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE623903C (en) * 1934-02-09 1936-01-07 Richard Raupach Maschinenfabri Extrusion press with ventilation chamber
GB864916A (en) * 1958-01-24 1961-04-12 Phillips Petroleum Co Improvements relating to extrusion of plastic material
DE1529959A1 (en) * 1964-11-10 1969-05-22 Heidrich Peter Screw extruder for injectable masses, e.g. thermoplastics and the like.
AT309789B (en) * 1967-11-20 1973-09-10 Buss Ag Mixing and kneading device for plastic masses
DE2124466B2 (en) * 1971-05-17 1978-09-28 Fried. Krupp Gmbh, 4300 Essen Extruder for processing plastics and elastomers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009059760A2 (en) * 2007-11-09 2009-05-14 Leistritz Aktiengesellschaft Screw extruder with plunger feeder
WO2009059760A3 (en) * 2007-11-09 2009-10-01 Leistritz Aktiengesellschaft Screw extruder with plunger feeder
US7954991B2 (en) 2007-11-09 2011-06-07 Leistritz Extrusionstechnik Gmbh Screw extruder with plunger feeder

Also Published As

Publication number Publication date
DE2417116A1 (en) 1975-10-16
FR2266590B1 (en) 1978-09-01
CH579453A5 (en) 1976-09-15
DE2417116C2 (en) 1983-11-10
FR2266590A1 (en) 1975-10-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee