DE3275360D1 - An extrusion machine - Google Patents

An extrusion machine

Info

Publication number
DE3275360D1
DE3275360D1 DE8282306152T DE3275360T DE3275360D1 DE 3275360 D1 DE3275360 D1 DE 3275360D1 DE 8282306152 T DE8282306152 T DE 8282306152T DE 3275360 T DE3275360 T DE 3275360T DE 3275360 D1 DE3275360 D1 DE 3275360D1
Authority
DE
Germany
Prior art keywords
concrete
conveyor
mold
lower edge
elements
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
DE8282306152T
Other languages
German (de)
Inventor
Christopher B Bunn
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.)
OSAKEYHTIOE PARTEK AB, HELSINKI, FI
Original Assignee
Dy Core Systems Ireland 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23260109&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3275360(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dy Core Systems Ireland Ltd filed Critical Dy Core Systems Ireland Ltd
Application granted granted Critical
Publication of DE3275360D1 publication Critical patent/DE3275360D1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/22—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded by screw or worm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/084—Producing shaped prefabricated articles from the material by vibrating or jolting the vibrating moulds or cores being moved horizontally for making strands of moulded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/22—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded by screw or worm
    • B28B3/224—Twin screw extruders, e.g. double shaft extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
    • B28B3/22—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded by screw or worm
    • B28B3/228—Slipform casting extruder, e.g. self-propelled extruder

Abstract

An extrusion machine for making elongated articles of concrete by forcing the concrete through a mold, the article having a relatively large core, has a rotatable spiral conveyor (20, 22) which extends longitudinally of the mold (26) and moves the concrete through the mold. Non-rotatable forming elements (28, 30, 32) in the mold (26) form the internal cavity, which elements are positioned immediately downstream of the conveyor with their lower edge not more than 10% of the forming element below the lower edge of the conveyor. The lower edge and lower side of the forming elements (28, 30, 32) are free of any substantial ramp, and a ramp (34) on the first forming element (28) extends upwardly from the downstream end of the conveyor (20, 22). The conveyor forces the concrete over the forming elements to form the concrete article, and the machine is moved forwardly by reaction as the concrete is forced against the molded concrete.
DE8282306152T 1981-11-20 1982-11-18 An extrusion machine Expired DE3275360D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US32364881A 1981-11-20 1981-11-20

Publications (1)

Publication Number Publication Date
DE3275360D1 true DE3275360D1 (en) 1987-03-12

Family

ID=23260109

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282306152T Expired DE3275360D1 (en) 1981-11-20 1982-11-18 An extrusion machine

Country Status (14)

Country Link
EP (1) EP0080333B1 (en)
JP (1) JPS58131020A (en)
KR (1) KR860001642B1 (en)
AT (1) ATE25349T1 (en)
AU (1) AU539819B2 (en)
CA (1) CA1193834A (en)
DE (1) DE3275360D1 (en)
DK (1) DK158073C (en)
EG (1) EG15859A (en)
FI (1) FI71088C (en)
IE (1) IE53675B1 (en)
IN (1) IN157614B (en)
MX (1) MX157583A (en)
NO (1) NO157289C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN85102514B (en) * 1985-04-08 1986-11-05 核工业部建筑机械开发公司 Single slab compression of prestressed concrete hollow slab
US5123831A (en) * 1991-05-16 1992-06-23 Esa Enqvist Concrete extrusion machine
CA2204978A1 (en) * 1997-05-09 1998-11-09 Ultra Span Technologies Inc. Low noise hollow core slab extruder
EP0968799A1 (en) * 1998-07-01 2000-01-05 Euromac S.r.l. Extruder for products in reinforced concrete
FI19991792A (en) * 1999-08-23 2001-02-24 Valkeakoski Extec Oy Ltd Method and arrangement for making a concrete product and a series of concrete products
FI20021092A (en) * 2002-06-07 2003-12-08 Consolis Technology Oy Ab Process and apparatus for casting concrete products
FI121943B (en) 2007-11-21 2011-06-15 Outotec Oyj dispenser
CN103158190B (en) * 2013-03-28 2015-09-09 南京益生宜居建筑材料科技有限公司 The core rod extruding use in storehouse of Extruder for concrete core slab
CN103171031B (en) * 2013-03-28 2015-06-24 南京益生宜居建筑材料科技有限公司 Continuous production method for concrete hollow slab
CN103171030B (en) * 2013-03-28 2015-09-09 南京益生宜居建筑材料科技有限公司 Concrete core slab continuous extruder

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159897A (en) * 1961-07-10 1964-12-08 Fredrick G Ellis Machine for extruding hollow cored concrete sections
CA910030A (en) * 1969-12-04 1972-09-19 Putti George Extrusion machine for making articles of cement-like material
US3926541A (en) * 1970-06-29 1975-12-16 Frederick M Hewitt Extruder with interacting auger and care means
GB1454050A (en) * 1974-02-11 1976-10-27 Spiroll Corp Ltd Pile extruder
US3904341A (en) * 1975-08-29 1975-09-09 Dyform Concrete Prestressed Lt Machine for extruding cement-like material into articles
CA1100297A (en) * 1977-10-28 1981-05-05 Norman W. Bunn Reinforcing member support in concrete extruders
JPS583801B2 (en) * 1979-09-12 1983-01-22 ダイフオ−ム・エンジニアリング・リミテツド concrete extrusion molding machine

Also Published As

Publication number Publication date
KR860001642B1 (en) 1986-10-15
NO157289C (en) 1988-02-24
IN157614B (en) 1986-05-03
FI821813A0 (en) 1982-05-21
JPS58131020A (en) 1983-08-04
JPS6315122B2 (en) 1988-04-04
DK158073C (en) 1990-08-20
EP0080333A3 (en) 1984-10-17
EG15859A (en) 1986-12-30
DK158073B (en) 1990-03-26
KR840002290A (en) 1984-06-25
AU539819B2 (en) 1984-10-18
NO823868L (en) 1983-05-24
DK518082A (en) 1983-05-21
IE53675B1 (en) 1989-01-04
FI821813A (en) 1983-05-21
AU9071182A (en) 1983-05-26
MX157583A (en) 1988-12-02
EP0080333B1 (en) 1987-02-04
EP0080333A2 (en) 1983-06-01
CA1193834A (en) 1985-09-24
FI71088C (en) 1990-02-13
NO157289B (en) 1987-11-16
IE822664L (en) 1983-05-20
ATE25349T1 (en) 1987-02-15
FI71088B (en) 1986-08-14

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: OSAKEYHTIOE PARTEK AB, HELSINKI, FI