US3480705A - Method for casting,lifting and setting blocks - Google Patents

Method for casting,lifting and setting blocks Download PDF

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Publication number
US3480705A
US3480705A US539192A US3480705DA US3480705A US 3480705 A US3480705 A US 3480705A US 539192 A US539192 A US 539192A US 3480705D A US3480705D A US 3480705DA US 3480705 A US3480705 A US 3480705A
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US
United States
Prior art keywords
block
casting
casting frame
hood
lifting
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
US539192A
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English (en)
Inventor
Josef Vogele
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.)
Hebel Gasbetonwerk GmbH
Original Assignee
Hebel Gasbetonwerk GmbH
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 Hebel Gasbetonwerk GmbH filed Critical Hebel Gasbetonwerk GmbH
Application granted granted Critical
Publication of US3480705A publication Critical patent/US3480705A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/022—Means for inserting reinforcing members into the mould or for supporting them in the mould
    • B28B23/024—Supporting means
    • 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
    • B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
    • B28B11/145—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting for dividing block-shaped bodies of expanded materials, e.g. cellular concrete
    • 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
    • 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
    • B28B13/06—Removing the shaped articles from moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0218—Safety measures, e.g. sensors, duplicate functions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0231—Special lip configurations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0293—Single lifting units; Only one suction cup

Definitions

  • the invention relates to a method for the casting, lifting and setting down of mass blocks which are] still in plastic condition, in particular porous concrete blocks, by means of a casting or mould frame which can be placed on a stationary casting base and is lifted off the mould base together with the mass block, after the same has been cast, and, to allow the setting down of this block, after it is transported to a cutting device.
  • a mould which is composed of four side boards, fitted at the inside with bottom bars or bottom angles, on which the mass block is intended to rest while being lifted and transported. These bottom bars provide, however, an insufficient support to the very sensitive and relatively large-size plastic block of porous concrete, so that the block sags in its central area thereby causing damage and cracks.
  • a further disadvantage of this known mould is that it must be dismantled on the cutting device, after the mass block has been set down. This is not only a tedious procedure, but also causes the risk of damaging the sensitive mass block, since the side boards of the mould because of the bottom bars, have to be removed from the mass block in the lateral direction.
  • the object of the invention is to avoid the above mentioned disadvantages and, using a casting frame which can be placed on a stationary mould base, lift off the mass block together with this casting frame without causing any damage, and transport it to the cutting device without the casting frame having to be dismantled after the setting down of the mass block.
  • a pneumatic depression also referred to as a negative pressure
  • a pneumatic overpressure also referred to as a positive pressure
  • This method permits a safe transportation of the sensitive porous concrete block without the formation of cracks.
  • the block can be already lifted off the casting base while still being in a relatively non-rigid, very plastic Patented Nov. 25, 1969 condition, whereby not only time! is gained for the primary hardening, but also the withdrawal of the suspensionfbars which hold the reinforcement, and the cutting of the block into units (slabs or bricks) become easier, and'damage to the block (e.g. crumbling away) during these operations is prevented.
  • a further advantage of this novel method is that the setting down of the block and the removal of the casting frame are achieved in a most simple manner by means of compressed air, and no dismantling of the casting frame is required in this case, which means that a sealed casting frame composed of four side boards, tightly fastened to each other, can be used for the casting as well as for the overhead transportation.
  • the method according to the invention is advantageously worked in conjunction with a fan in such a manner that the casting frame, prior to being lifted off the casting base, is connected to the suction line of the fan and, after the setting of the block, to the blower line of the fan.
  • FIGURE 1 is a cross-section of a mould for casting a porous concrete block, with a vacuum-powered lifting device
  • FIGURE 2 shows a component of the mould according to FIGURE 1 in a modified design.
  • 1 denotes a stationary level casting base, which may be reinforced by cross and longitudinal bracing girders 2, 3.
  • a rectangular casting frame 4 which is composed of four perpendicular side boards 4a, tightly fastened to each other, is placed, but not fixed onto this casting base.
  • These, preferably sealed, casting frame side boards are denoted 4a, the lower part of which may be formed by hollow stay members 5, and their upper end may be fitted with bracing L- or U-beams 6 which are suitably interconnected to the hollow stay members 5 by perpendicularly props 7.
  • the porous concrete block, cast into this casting frame or mould, is denoted 8.
  • This block is separated at a later stage by a cutting device into construction elements, e.g. slabs. These cutting lines are indicated by dash-dotted lines 9.
  • the reinforcement where used of a slab is shown at 10, in which case this reinforcement is held by a suspension bar 11.
  • These suspension bars are led through a cross beam 12 which rests with its legs 12a on the profiles 6 of the mould 4.
  • This mould is in an air-tight connection with the hood 13, which is' connected to a source of suction and compressed air, preferably a fan 14, in such a manner that a pneumatic depression or an overpressure can be produced selectively in this hood 13, and, thus, in the mould 4.
  • the suction line 15 and the pressure line 16 of this fan communicate, via a control device 17, with the duct 18 which opens into the hood 13.
  • This control device includes a push rod 19 which can be moved in direction of the arrow A, and by which the control flaps 21, pivoted around the axis 20, can be shifted from the position indicated by the full lines, into the position marked by the broken lines 21.
  • the air current is in direction of the arrows drawn in unbroken lines, i.e. causing a pneumatic depression in the hood 13, whereas in the broken-line position 21', the air current is in reverse direction (arrows with broken lines), i.e. causing an" overpressure in the hood 13.
  • a suitable hoisting device which is shown at 22 in the form of a crane hook, may engage with the hood 13, but may as Well be applied directly to the casting frame 4.
  • the hood 13 is advantageously connected to the casting frame 4 in a readily detachable manner.
  • the end profiles 23 of the hood can be fitted with holdfast jaws 25 which are hinged at the axis 24 and provided with thumb screws 26, so that the hood 13 and the casting frame 4, with the aid of these holdfast jaws 25, can be coupled to each other in a rigid and air-tight connection, as is shown in the drawing.
  • the bottom edge of the hood is fitted with an inverted U-section 27 with a resilient seal 28, which rests on the vertical flange of the profile 6, thereby providing an air-tight connection between the hood and the mould.
  • the inward sides of the casting frame walls 412 can be fitted with spring-type blades 29, as is shown in FIGURE 2, and may be, for instance, in the form of vibrating diaphragms; under the effect of the ambient atmospheric pressure (with a vacuum in the hood 13), these are pressed inward against the mass block 8, and, therefore, increase the friction forces which are present between the block and the casting frame.
  • an overpressure is generated in the hood 13 to allow the setting down of the mass block, this cannot cause any damage to the mass block, since the blades 29 rest against the side boards 4a and the perpendicular props 7.
  • the casting frame 4 when lifting the casting frame 4 off the casting base 1, the casting frame 4, prior to being lifted, may be slightly shifted off the casting base 1 in laterial direction. Instead, the casting frame 4 can be first lifted off the casting base at one side only, as indicated by the arrow B, so that a small gap exists between the mass block and the casting base at 30, and, (with a vacuum building up in the hood 13), the atmospheric pressure can become effective at this point on the bottom face of the block.
  • the casting frame 4 together with the block 8 is set down on the table of a cutting device, and, with an overpressure building up in the hood 13, the casting frame 4 is then separated from the block 8 and pushed upward.
  • the walls 4a, 5 of the casting frame may be slightly inclined from the vertical plane towards the inside, as indicated by the dashdotted line 4a and the angle a in FIGURE 1, so that the casting frame widens towards its bottom in a tapered shape.
  • the cross beams 12 are hoisted so that the suspension bars 11 are drawn out of the block 8. If required, the bars 11, prior to this hoisting operation, can be loosened in the block 8, i.e. slightly pulled out.
  • the hood 13 can be provided with servo-lifting devices 32, to be operated from the outside, e.g. by means of pivoting levers 31, and in conjunction with eccentric components, by which the cross beams 12 are slightly hoisted.
  • An unlocking system can be coupled with these servo-lifting devices 32, by which the suspension bars 11 are turned simultaneously around their axis and thus loosened from the reinforcements 10.
  • a method for casting, lifting, transporting and setting down of a large porous concrete block in a plastic state comprising the steps of:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
US539192A 1965-04-03 1966-03-31 Method for casting,lifting and setting blocks Expired - Lifetime US3480705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0043262 1965-04-03

Publications (1)

Publication Number Publication Date
US3480705A true US3480705A (en) 1969-11-25

Family

ID=7127144

Family Applications (1)

Application Number Title Priority Date Filing Date
US539192A Expired - Lifetime US3480705A (en) 1965-04-03 1966-03-31 Method for casting,lifting and setting blocks

Country Status (8)

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US (1) US3480705A (US20110232667A1-20110929-C00004.png)
AT (1) AT255953B (US20110232667A1-20110929-C00004.png)
CH (1) CH457242A (US20110232667A1-20110929-C00004.png)
DE (1) DE1584426B1 (US20110232667A1-20110929-C00004.png)
FR (1) FR1472782A (US20110232667A1-20110929-C00004.png)
GB (1) GB1137031A (US20110232667A1-20110929-C00004.png)
NL (1) NL143457B (US20110232667A1-20110929-C00004.png)
SE (1) SE312517B (US20110232667A1-20110929-C00004.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2807415A1 (fr) * 2000-04-07 2001-10-12 Applic Procedes Electronique Dispositif de rupture de vide dans une chambre a vide et appareil de prehension d'objets muni d'un tel dispositif
WO2008139439A3 (en) * 2007-05-14 2009-11-05 Gilbert Gal Ben Lulu Systems and methods for a controlled process for producing mixtures of lightweight construction materials and systems for automatic production of lightweight bricks
CN102873748A (zh) * 2012-09-22 2013-01-16 王炳贞 大型混凝土构件预制装置及大型混凝土构件的预制方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2519619B1 (fr) * 1982-01-11 1986-02-21 Carnaud Emballage Sa Procede et dispositif de prehension par aspiration
CN108996388B (zh) * 2018-10-24 2023-09-29 泰豪科技股份有限公司 一种用于集装箱轴流风机的吊装装置及起吊机
CN112405803A (zh) * 2020-11-23 2021-02-26 肖景雄 一种全自动混凝土切块成型机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046867A (en) * 1935-10-05 1936-07-07 Vacuum Concrete Corp Method of and apparatus for treating concrete
US2629135A (en) * 1948-11-23 1953-02-24 Arthur F Johnson Method of concrete construction
US3178791A (en) * 1962-01-23 1965-04-20 Babcock & Wilcox Co Apparatus for molding refractory shapes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE849371C (de) * 1940-12-24 1952-09-15 Alessandro Magnani Vorrichtung zum Schneiden von Baendern aus noch weichem Faserzement zu Tafeln gewuenschter Abmessung
DE805995C (de) * 1945-06-08 1951-06-11 Turners Asbestos Cement Compan Einrichtung zur Herstellung eines Stapels aus Platten o. dgl.
DE803757C (de) * 1949-04-24 1951-04-09 Hermann Josef Boeyng Verfahren und Einrichtung zum Herstellen von gebundenen Steinen und Formteilen
DE966769C (de) * 1949-07-22 1957-09-05 Siporex Int Ab Verfahren und Vorrichtung zur Herstellung von Baubloecken aus Leichtbeton od. dgl.
NL79354C (US20110232667A1-20110929-C00004.png) * 1951-04-05
DE1071563B (US20110232667A1-20110929-C00004.png) * 1957-08-27 1959-12-17
DE1177537B (de) * 1961-11-20 1964-09-03 Siporex Int Ab Anlage zum Herstellen von bewehrten Leichtbetonelementen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046867A (en) * 1935-10-05 1936-07-07 Vacuum Concrete Corp Method of and apparatus for treating concrete
US2629135A (en) * 1948-11-23 1953-02-24 Arthur F Johnson Method of concrete construction
US3178791A (en) * 1962-01-23 1965-04-20 Babcock & Wilcox Co Apparatus for molding refractory shapes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2807415A1 (fr) * 2000-04-07 2001-10-12 Applic Procedes Electronique Dispositif de rupture de vide dans une chambre a vide et appareil de prehension d'objets muni d'un tel dispositif
WO2008139439A3 (en) * 2007-05-14 2009-11-05 Gilbert Gal Ben Lulu Systems and methods for a controlled process for producing mixtures of lightweight construction materials and systems for automatic production of lightweight bricks
CN102873748A (zh) * 2012-09-22 2013-01-16 王炳贞 大型混凝土构件预制装置及大型混凝土构件的预制方法
CN102873748B (zh) * 2012-09-22 2014-09-17 王炳贞 大型混凝土构件预制装置及大型混凝土构件的预制方法

Also Published As

Publication number Publication date
AT255953B (de) 1967-07-25
SE312517B (US20110232667A1-20110929-C00004.png) 1969-07-14
NL6604070A (US20110232667A1-20110929-C00004.png) 1966-10-04
DE1584426B1 (de) 1970-12-10
FR1472782A (fr) 1967-03-10
CH457242A (de) 1968-05-31
NL143457B (nl) 1974-10-15
GB1137031A (en) 1968-12-18

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