EP0050819B1 - Moule à ouverture hydraulique pour la coulée des billettes de dimensions prédéterminées ayant quatre éléments divergents en forme de cône tronqué - Google Patents

Moule à ouverture hydraulique pour la coulée des billettes de dimensions prédéterminées ayant quatre éléments divergents en forme de cône tronqué Download PDF

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Publication number
EP0050819B1
EP0050819B1 EP81108499A EP81108499A EP0050819B1 EP 0050819 B1 EP0050819 B1 EP 0050819B1 EP 81108499 A EP81108499 A EP 81108499A EP 81108499 A EP81108499 A EP 81108499A EP 0050819 B1 EP0050819 B1 EP 0050819B1
Authority
EP
European Patent Office
Prior art keywords
mold
forms
closing
casting
covers
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
EP81108499A
Other languages
German (de)
English (en)
Other versions
EP0050819A3 (en
EP0050819A2 (fr
Inventor
Giuseppe Aliverti
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.)
COMPAGNIA ITALIANA FORME ACCIAIO S P A
Original Assignee
COMPAGNIA ITALIANA FORME ACCIAIO S P A
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 COMPAGNIA ITALIANA FORME ACCIAIO S P A filed Critical COMPAGNIA ITALIANA FORME ACCIAIO S P A
Priority to AT81108499T priority Critical patent/ATE10448T1/de
Publication of EP0050819A2 publication Critical patent/EP0050819A2/fr
Publication of EP0050819A3 publication Critical patent/EP0050819A3/en
Application granted granted Critical
Publication of EP0050819B1 publication Critical patent/EP0050819B1/fr
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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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
    • B28B7/0035—Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding
    • B28B7/0044—Moulds characterised by the way in which the sidewalls of the mould and the moulded article move with respect to each other during demoulding the sidewalls of the mould being only tilted away from the sidewalls of the moulded article, e.g. moulds with hingedly mounted sidewalls

Definitions

  • the present invention relates to a mold with hydraulic opening for the casting of concrete blocks, of the type-chiefly designed to form marine or fluvial coastal weirs-comprising four diverging frustoconical elements, which is known in the prior art.
  • the object of the invention is to provide a mold with a very simple and stout structure and allowing at the same time, during use thereof, to greatly facilitate and speed up the setting up and dismantling operations, without causing any losses during the casting operation.
  • a mold which efficiently satisfies all these requirements is characterized in that it comprises a reinforced stationary base, three tilting forms pivoted to said base and each moved by a corresponding hydraulic jack, three tilting covers for closing three of the four end openings between each form and the adjacent one, and fast screw tightening means between said forms and said covers.
  • the mold will also comprise jig locators and dowel pins for its various cooperating parts, and a hydraulic gearbox controlling the three jacks which operate the movements of the forms.
  • the mold according to the invention consists of a reinforced stationary base 1, to which are pivoted in 2 three tilting forms 4, 5, 6, controlled by hydraulic jacks 7, and to which are also pivoted in 8 three manually controlled covers 9 for closing the three lower end openings 10 existing between each form and the adjacent one when the mold is closed.
  • a fourth upper opening 11 between the forms is instead left open to allow the casting.
  • Figure 3 shows how the stationary base 1 and the jacks 7 are anchored to the ground by means of metal hooks G buried into concrete castings C.
  • Figure 5 shows in detail how one of said covers 9 is locked, to close its opening 10, by fast tightening means consisting of a screw stay 12 mounted oscillating in 12' on the form 4, and apt to be associated to the cover 9 by insertion into an appropriate seat thereof, and to be locked by a nut 13 pressing onto the outer surface of said cover 9.
  • fast tightening means consisting of a screw stay 12 mounted oscillating in 12' on the form 4, and apt to be associated to the cover 9 by insertion into an appropriate seat thereof, and to be locked by a nut 13 pressing onto the outer surface of said cover 9.
  • Figure 6 shows the centering means between two of the adjacent forms 4, 5, and 6: these means consist of frustoconical seats 14 welded onto a support 15 provided on one of said forms, for instance form 5, and of frustoconical pins 16 projecting from a support 15' similar to the previous one and provided on the adjacent form, for instance form 6; on approaching of the two forms in the closing phase, the pins 16 tend to introduce themselves, and then introduce themselves into the seats 14, as shown in the drawing, in order to obtain the perfectly centered positioning and sealing between the two forms.
  • FIG 7 shows the tightening means between the forms 4, 5 and 6, designed to be operated after said forms have been closed and centered one in respect of the other, thanks to the means illustrated in the previous figure.
  • Such tightening means comprise-like those (12 and 13) for closing the covers 9-a screw stay 18, pivoted in 19 to an ear (for instance ear 17) of a form (for instance form 5), and a nut 20 applied on said stay rod, after this latter has inserted itself into an appropriate seat of an ear (for instance ear 17') of the adjacent form (for instance form 6).
  • the setting up thereof is carried out by closing the three forms 4, 5 and 6, through simultaneous control of the hydraulic jacks 7 in the direction of mutual approach of said forms, for instance by anticlockwise rotation with motion from right to left, on looking at the drawings with reference to the form 4 of figure 3, from the position illustrated in dashed lines to that illustrated in continuous lines.
  • the forms 4, 5 and 6 will be centered one in respect of the other, thanks to the action of the centering means described with reference to figure 6, and it will then be possible to lock them manually in a sealed position by applying the tightening means described with reference to figure 7.
  • the covers 9 will be applied- also manually-to close the three lower openings 10 between each form and the adjacent one, in correspondence of the ends of the diverging frustoconical elements of the block to be casted. This operation will be carried out by overturning the covers 9 and tightening them in a closing position, by manual application of the appropriate means (12 and 13) illustrated with reference to figure 5.
  • the concrete casting may be carried out-by the known methods-with the use (if appropriate) of wall vibrators applied on the forms 4, 5 and 6 and/or of plunge vibrators introduced from the upper opening 11.
  • the dismantling will be easily carried out by removing the means tightening the covers and the forms, by manually overturning the covers and, finally, by also overturning the forms under the control of the jacks.
  • the block B (figures 2 and 8) will rest properly onto the stationary base 1, appropriately shaped to provide a comfortable and reliable rest surface, and may then be removed by the help of a crane, or like, in a known manner.
  • the jacks 7 are controlled by a single hydraulic gearbox, not shown, so as to work in synchronism.
  • the structure provided for the mold according to the present invention is very simple and efficient, and also very easy and quick to operate: the use of pin locating means and of the various tightening means allows in fact to easily and rapidly find the respective positions of the various cooperating parts, which automatically take up their correct positioning in a short while.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Claims (5)

1. Moule à ouverture et fermeture hydrauliques pour le moulage de blocs (B) de béton, du genre qui possède quatre éléments tronconiques divergents, caractérisé en ce qu'il comporte une base fixe (1) raidie convenablement conformée, trois empreintes basculantes (4, 5, 6) -également convenablement conformées- tourillonnées sur ladite base et chacune mue par un vérin hydraulique (7) correspondant, trois couvercles (9) pour fermer trois (10) des quatre ouvertures d'extrémité entre chaque empreinte et sa voisine, des moyens d'alignement (14, 16) entre les différentes parties mobiles du moule, et des moyens de serrage rapide à vis entre lesdites empreintes et lesdits couvercles.
2. Moule selon la revendication 1, dans lequel la quatrième ouverture d'extrémité entre les empreintes, qui n'a pas de couvercle, est laissée ouverte pour effectuer le moulage du bloc (B).
3.. Moule selon les revendications 1 et 2, dans lequel les trois vérins hydrauliques (7), qui effectuent l'ouverture et la fermeture des empreintes en rabattant celles-ci, sont commandées par une unique boîte de commande hydraulique commune.
4. Moule selon les revendications 1 à 3, dans lequel les moyens d'alignement (14, 16) comportent des pions et des logements tronconiques de formes complémentaires, montés sur des supports soudés sur les empreintes, lesdites empreintes étant aptes à se disposer d'elles mêmes l'une adjatente à l'autre durant la fermeture du moulé.
5. Moule selon les revendications 1 à 3 dans lequel les moyens de serrage rapide entre lesdites empreintes (4, 5, 6) et lesdits couvercles (9) comportent des tirants filetés tourillonnant à une extrémité sur une partie mobile du moule et apte à être serré sur la partie adjacente, à joindre à la première, par un écrou disposé à l'extrémité opposée, après insertion desdits tirants dans un logement ouvert approprié sur l'autre partie mobile.
EP81108499A 1980-10-23 1981-10-19 Moule à ouverture hydraulique pour la coulée des billettes de dimensions prédéterminées ayant quatre éléments divergents en forme de cône tronqué Expired EP0050819B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81108499T ATE10448T1 (de) 1980-10-23 1981-10-19 Form mit hydraulischer oeffnung zum giessen bestimmter bloecke, ausgeruestet mit vier divergierenden, kegelstumpffoermigen elementen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2551480 1980-10-23
IT25514/80A IT1133991B (it) 1980-10-23 1980-10-23 Cassaforma ad apertrua idraulica per il getto di blocchi in calcestruzzo del tipo a quattro elementi troncoconici divergenti

Publications (3)

Publication Number Publication Date
EP0050819A2 EP0050819A2 (fr) 1982-05-05
EP0050819A3 EP0050819A3 (en) 1982-06-02
EP0050819B1 true EP0050819B1 (fr) 1984-11-28

Family

ID=11216923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81108499A Expired EP0050819B1 (fr) 1980-10-23 1981-10-19 Moule à ouverture hydraulique pour la coulée des billettes de dimensions prédéterminées ayant quatre éléments divergents en forme de cône tronqué

Country Status (8)

Country Link
EP (1) EP0050819B1 (fr)
AR (1) AR228163A1 (fr)
AT (1) ATE10448T1 (fr)
BR (1) BR8106822A (fr)
DE (1) DE3167492D1 (fr)
ES (1) ES506343A0 (fr)
IT (1) IT1133991B (fr)
PT (1) PT73867B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6050736B2 (ja) * 2013-11-08 2016-12-21 株式会社コウナン ブロック昇降装置
CN108942126B (zh) * 2018-06-21 2020-04-03 宁夏元泉建设有限公司 混凝土四脚体模板的制作方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1900162U (de) * 1964-06-04 1964-09-03 Bauunternehmung Lorenz Kesting Vorrichtung zum entformen von betonfertigteilen.
US3348802A (en) * 1965-09-22 1967-10-24 Sam Heppenstall & Associates I Mold box
DE1804457A1 (de) * 1968-10-22 1970-05-14 Krasnopresnenskij Zd Zelezobet Form fuer die Herstellung von Bauelementen

Also Published As

Publication number Publication date
ES8206259A1 (es) 1982-08-16
PT73867A (en) 1981-11-01
ES506343A0 (es) 1982-08-16
PT73867B (en) 1983-01-26
EP0050819A3 (en) 1982-06-02
IT1133991B (it) 1986-07-24
ATE10448T1 (de) 1984-12-15
AR228163A1 (es) 1983-01-31
EP0050819A2 (fr) 1982-05-05
IT8025514A0 (it) 1980-10-23
DE3167492D1 (en) 1985-01-10
BR8106822A (pt) 1982-07-06

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