US3602358A - Method and apparatus for separating steam-cured aerated concrete units - Google Patents

Method and apparatus for separating steam-cured aerated concrete units Download PDF

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Publication number
US3602358A
US3602358A US837847A US3602358DA US3602358A US 3602358 A US3602358 A US 3602358A US 837847 A US837847 A US 837847A US 3602358D A US3602358D A US 3602358DA US 3602358 A US3602358 A US 3602358A
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US
United States
Prior art keywords
rollers
units
block
unit
sets
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 - Lifetime
Application number
US837847A
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English (en)
Inventor
Per Ake Henning Jakobsson
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Ytong AG
Original Assignee
Intong AB
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Publication date
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Publication of US3602358A publication Critical patent/US3602358A/en
Assigned to YTONG AG reassignment YTONG AG ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: INTONG AB, A SWEDEN CORP
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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
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/04—Discharging the shaped articles
    • 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
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/10—Methods
    • Y10T225/14—Longitudinally of direction of feed
    • 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
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/30—Breaking or tearing apparatus
    • Y10T225/35—Work-parting pullers [bursters]

Definitions

  • ABSTRACT A method and an apparatus for separating 865g 37/00 steam-cured aerated concrete units, already divided before 214/85 A. curing. the separating of the units being performed between two pair of rollers arranged one after the other and having different peripheral speeds.
  • This invention refers to a method and apparatus for unloading steam-cured aerated concrete units, already cut before the steam curing, wherein a mold content still not separated through cut is brought between two pairs of rollers arranged one after the other and having different periphery speeds.
  • Aerated concrete is normally produced in the following way: Finely crushed raw materials, containing lime and silicic acid are mixed with water and then some porosity-forming agent, such as aluminum powder, is added, whereafter the mass obtained is cast into relatively large molds where it is left to expand and to bind to a consistency suitable for dividing it into smaller units. While in this plastic state the mold content is divided into the desired units by sawing with cutting devices, such as wires, braced in frames. After dividing, the material is brought into horizontal autoclaves to be steam-cured. When the cured material arrives from the autoclaves to be unloaded and stored in groups of different units, there may, when using certain raw materials, appear some adhesion in the saw cuts rendering the separating difficult.
  • the present invention relates to a solution of the problem of separating steam cured aerated concrete units, preferably blocks, mechanically.
  • the mold content arriving from the autoclaves is, before being separated, brought between two pairs of rollers arranged one pair after the other in the transport direction and separately driven, the rollers of the first or downstream pair having a somewhat higher peripheral speed than those of the second or upstream pair.
  • one of the rollers in the first pair has a greater peripheral speed than the other one in the same pair, whereby, beside the pulling force, there arises a breaking moment contributing to the separating of the aerated concrete units from each other.
  • FIG. 1 shows a schematic arrangement of a separating device including the features of the present invention.
  • FIG. 2 is an enlarged detailed view of a part of FIG. 1.
  • FIG. 1 shows the installations around an separating device.
  • the mold content still not separated (though divided by a cutter) is placed in such a position that the dividing cuts in the aerated concrete mass are perpendicular to the moving direction of the belt which transports it through the separating device 12.
  • a further endless belt conveyor 13 This one may consist of a rubber strip, to protect the units against edge damage.
  • the units may be palleted immediately after separating and the pallets transported away.
  • the apparatus functions as follows. Referring in particular to FIG. 2, divided and autoclaved mold content is transported on the belt conveyor 11 and seized by the rollers 14 and 15 which possess the same peripheral speed as the conveyor 11.
  • the roller 14 is arranged so as to press against the mold content with a certain force perpendicularly. to the transport direction.
  • the block A passes the second rollers I4 and 15 and when these have seized the block B, the block first mentioned has already been brought in between the first rollers 16 and 17, the roller 16 pressing against block A with a certain force perpendicularly to the transport direction.
  • rollers 16 and 17 of the first roller pair possess a peripheral speed somewhat greater than that of the second pair of rollers, and particularly if the 16 has a still greater peripheral speed than the 17, there arises a pulling force and a bending moment in the mass separating the blocks at the saw cuts.
  • the block A falls down onto the belt conveyor 13 and is brought away.
  • the moment of the roller 16 during this operation approaching 0, this roller is lifted by an automatic control device, not described here, and, after a certain time interval for preventing damage on the edges-of the aerated concrete, it starts pressing against the next block.
  • the length of the time interval mentioned depends on the distance center to center between the rollers which distance in its turn is decided by the smallest size of the blocks treated.
  • the rollers 14 and 16 may suitably be fixed to one end of levers l8, 19, preferably driven mechanically, e.g. by hydraulic cylinders.
  • the device thus operates so as to separate the aerated divided concrete automatically and continuously at the saw cuts without any need adjust the dimensions.
  • a method for separating units of a steam cured aerated concrete block, which block has already been divided into units but wherein some adhesion remains between the units comprising the steps of:
  • the said movement being in a direction generally transverse to the planes of the divisions between the units, engaging the periphery ofa first unit with a first set of rollers while rotating the rollers of the first set at a first peripheral speed, concurrently engaging the periphery of a second unit, which is adjacent to and trailing the first unit, with a second set of rollers while rotating the rollers of the second set at a peripheral speed lower than the said first peripheral speed and exerting a turning moment on the first unit tending to turn it from its orientation relative to the second unit by rotating one of the rollers of the first set at a peripheral speed greater than roller of the first set.
  • An apparatus for separating units ofa block, which block has already been divided into units but wherein some adhesion remains to hold the units together comprising, first and second sets of rollers, means for conveying the block through the sets of rollers such that the units of the block pass in succession through said second set of rollers and then through said first set of rollers, said sets of rollers being arranged to grasp the units passing therethrough, means for rotating the rollers of both sets, including rotating the rollers of the first set at a greater peripheral speed than the rollers of the second set and including means for exerting a turning moment on the first unit tending to turn it from its orientation relative to the second unit, said means including means .for rotating one roller of the first set at a greater peripheral speed then the other roller of the first set.
  • each set comprises a pair of opposed rollers arranged to grasp opposite sides of a unit passing therethrough.
  • An apparatus for separating units of a block, which block has already been divided into units but wherein some adhesion remains to hold the units together comprising, first and second sets of rollers; means for conveying the block through the set of rollers such that the units of the block pass in succession through said second set of rollers and then through said first set of rollers, said sets of rollers being arranged to grasp the units passing therethrough, means for rotating the rollers of both sets, including rotating the rollers of the first set at a greater peripheral speed than the rollers of the second set, and wherein each set comprises a pair of opposed rollers arranged to grasp opposite sides of a unit passing therethrough, and including means for moving at least one roller of at least one 9.
  • An apparatus including a fluid operated piston and cylinder unit for operating said lever I device.

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  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
US837847A 1968-07-01 1969-06-30 Method and apparatus for separating steam-cured aerated concrete units Expired - Lifetime US3602358A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9029/68A SE308269B (xx) 1968-07-01 1968-07-01

Publications (1)

Publication Number Publication Date
US3602358A true US3602358A (en) 1971-08-31

Family

ID=20275643

Family Applications (1)

Application Number Title Priority Date Filing Date
US837847A Expired - Lifetime US3602358A (en) 1968-07-01 1969-06-30 Method and apparatus for separating steam-cured aerated concrete units

Country Status (13)

Country Link
US (1) US3602358A (xx)
AT (1) AT297588B (xx)
BE (1) BE735499A (xx)
CH (1) CH482612A (xx)
DE (1) DE1932983A1 (xx)
DK (1) DK126619B (xx)
ES (1) ES368975A1 (xx)
FI (1) FI44098B (xx)
FR (1) FR2012081A1 (xx)
GB (1) GB1239172A (xx)
NL (1) NL158727B (xx)
NO (1) NO124060B (xx)
SE (1) SE308269B (xx)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721330A (en) * 1971-02-08 1973-03-20 Fmc Corp Article timing and feeding mechanism
US4003463A (en) * 1974-01-08 1977-01-18 Henry Simon Limited Apparatus for transporting bundles of flat articles
US4010881A (en) * 1974-08-14 1977-03-08 Mayfran Incorporated Apparatus for the treatment of chips
US4029194A (en) * 1974-05-13 1977-06-14 Pemco, Inc. Automatic indexing and transferring apparatus
US4122938A (en) * 1976-07-02 1978-10-31 S I G Schweizerische Industrie-Gesellschaft Apparatus for toppling conveyed articles
US4228888A (en) * 1977-11-15 1980-10-21 Alisyncro S.A.S. Di Bruno & C. Apparatus for feeding articles such as sweetmeat products to a packaging machine
DE3505597A1 (de) * 1984-02-20 1985-08-22 Franz Haas Waffelmaschinen Industriegesellschaft mbH, Wien Vorrichtung zum bilden von mit abstand aufeinanderfolgenden reihen
US4669603A (en) * 1984-02-20 1987-06-02 Franz Haas Waffelmaschinen Industriegesellschaft M.B.H. Apparatus for singling filled wafer slices
US4847969A (en) * 1988-01-19 1989-07-18 The Mead Corporation Roll splitter
US4889224A (en) * 1989-03-27 1989-12-26 Doboy Packaging Machinery, Inc. Product alignment device
US5074400A (en) * 1989-05-26 1991-12-24 Focke & Co. (Gmbh & Co.) Process and apparatus for changing the relative position of packs, especially of cuboidal cigarette packs of the hinge-lid type
US5284236A (en) * 1993-01-11 1994-02-08 Tsubakimoto Chain Co. Stacked rubber tire separation-transport apparatus
DE4236362A1 (de) * 1992-10-28 1994-05-05 Kolbus Gmbh & Co Kg Ausfuhreinrichtung für Buchfadenheftmaschine
US5450940A (en) * 1994-05-03 1995-09-19 Kolbus Gmbh & Co. Kg Delivery system for book-sewing machine
USD429822S (en) * 1999-09-15 2000-08-22 Jensen Daniel M Building unit
US6146087A (en) * 1998-02-27 2000-11-14 Perry; Arthur H. Denesting device and method for denesting a block of precut material
US6338608B1 (en) * 1998-05-15 2002-01-15 Murata Manufacturing Co., Ltd. Apparatus for transporting parts
US6676862B2 (en) 1999-09-15 2004-01-13 Advanced Building Systems, Inc. Method for forming lightweight concrete block

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1337031A (en) * 1919-03-29 1920-04-13 Int Cork Co Disk-sorting machine
US1449027A (en) * 1921-07-25 1923-03-20 Allen Neal Automatic tile-delivery table
US2279573A (en) * 1940-10-10 1942-04-14 Western Electric Co Conveyer system
US2517956A (en) * 1946-03-25 1950-08-08 Albertoli John Box handling apparatus
US3021019A (en) * 1957-03-03 1962-02-13 Internat Ytong Stabalite Co Lt Device for the separation of concrete bodies
US3374875A (en) * 1963-12-31 1968-03-26 Nat Biscuit Co Article conveying, separating and stacking apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1337031A (en) * 1919-03-29 1920-04-13 Int Cork Co Disk-sorting machine
US1449027A (en) * 1921-07-25 1923-03-20 Allen Neal Automatic tile-delivery table
US2279573A (en) * 1940-10-10 1942-04-14 Western Electric Co Conveyer system
US2517956A (en) * 1946-03-25 1950-08-08 Albertoli John Box handling apparatus
US3021019A (en) * 1957-03-03 1962-02-13 Internat Ytong Stabalite Co Lt Device for the separation of concrete bodies
US3374875A (en) * 1963-12-31 1968-03-26 Nat Biscuit Co Article conveying, separating and stacking apparatus

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721330A (en) * 1971-02-08 1973-03-20 Fmc Corp Article timing and feeding mechanism
US4003463A (en) * 1974-01-08 1977-01-18 Henry Simon Limited Apparatus for transporting bundles of flat articles
US4029194A (en) * 1974-05-13 1977-06-14 Pemco, Inc. Automatic indexing and transferring apparatus
US4010881A (en) * 1974-08-14 1977-03-08 Mayfran Incorporated Apparatus for the treatment of chips
US4122938A (en) * 1976-07-02 1978-10-31 S I G Schweizerische Industrie-Gesellschaft Apparatus for toppling conveyed articles
US4228888A (en) * 1977-11-15 1980-10-21 Alisyncro S.A.S. Di Bruno & C. Apparatus for feeding articles such as sweetmeat products to a packaging machine
DE3505597A1 (de) * 1984-02-20 1985-08-22 Franz Haas Waffelmaschinen Industriegesellschaft mbH, Wien Vorrichtung zum bilden von mit abstand aufeinanderfolgenden reihen
US4669603A (en) * 1984-02-20 1987-06-02 Franz Haas Waffelmaschinen Industriegesellschaft M.B.H. Apparatus for singling filled wafer slices
US4847969A (en) * 1988-01-19 1989-07-18 The Mead Corporation Roll splitter
US4889224A (en) * 1989-03-27 1989-12-26 Doboy Packaging Machinery, Inc. Product alignment device
US5074400A (en) * 1989-05-26 1991-12-24 Focke & Co. (Gmbh & Co.) Process and apparatus for changing the relative position of packs, especially of cuboidal cigarette packs of the hinge-lid type
DE4236362A1 (de) * 1992-10-28 1994-05-05 Kolbus Gmbh & Co Kg Ausfuhreinrichtung für Buchfadenheftmaschine
US5284236A (en) * 1993-01-11 1994-02-08 Tsubakimoto Chain Co. Stacked rubber tire separation-transport apparatus
US5450940A (en) * 1994-05-03 1995-09-19 Kolbus Gmbh & Co. Kg Delivery system for book-sewing machine
US6146087A (en) * 1998-02-27 2000-11-14 Perry; Arthur H. Denesting device and method for denesting a block of precut material
US6338608B1 (en) * 1998-05-15 2002-01-15 Murata Manufacturing Co., Ltd. Apparatus for transporting parts
US6733228B2 (en) 1998-05-15 2004-05-11 Murata Manufacturing Co., Ltd. Apparatus for transporting parts
USD429822S (en) * 1999-09-15 2000-08-22 Jensen Daniel M Building unit
US6676862B2 (en) 1999-09-15 2004-01-13 Advanced Building Systems, Inc. Method for forming lightweight concrete block
US7942658B1 (en) 1999-09-15 2011-05-17 Advanced Building Systems, Inc. Systems for forming lightweight concrete block

Also Published As

Publication number Publication date
GB1239172A (xx) 1971-07-14
SE308269B (xx) 1969-02-03
FI44098B (xx) 1971-04-30
DK126619B (da) 1973-08-06
CH482612A (de) 1969-12-15
NL158727B (nl) 1978-12-15
NL6910014A (xx) 1970-01-05
AT297588B (de) 1972-03-27
BE735499A (xx) 1969-12-16
NO124060B (xx) 1972-02-28
DE1932983A1 (de) 1970-02-05
ES368975A1 (es) 1971-07-16
FR2012081A1 (xx) 1970-03-13

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Legal Events

Date Code Title Description
AS Assignment

Owner name: YTONG AG,GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:INTONG AB, A SWEDEN CORP;REEL/FRAME:004264/0809

Effective date: 19840229

Owner name: YTONG AG, 3, D-8000 MUNICH 40, GERMANY A CORP. OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INTONG AB, A SWEDEN CORP;REEL/FRAME:004264/0809

Effective date: 19840229