DK152793B

DK152793B - Apparatus for the manufacture of longitudinal straightening bodies consisting of concrete

Info

Publication number: DK152793B
Application number: DK100883A
Authority: DK
Inventors: Stig-Aake Ljungkvist; Lennart Johansson
Original assignee: Vm Permaban Ab
Priority date: 1981-07-10
Filing date: 1983-02-28
Publication date: 1988-05-16
Also published as: DE3271832D1; DK100883A; JPS58501081A; EP0096036A1; FI72371C; FI832860A0; SE447004B; FI832860A; FI72371B; SE8104292L; DK152793C; EP0096036B1; WO1983000177A1; DK100883D0

Description

1 DK 152793 B1 DK 152793 B

Qpfindelsen angår et apparat til fremstilling af fortrinsvis langsgående afretningslegemer af beton og af den i krav l's indledning angivne type.The present invention relates to an apparatus for producing preferably longitudinal straightening bodies of concrete and of the type specified in the preamble of claim 1.

Der kendes en fremgangsmåde til fremstilling af betongulve af høj kvalitet 5 med hensyn til planhed og rationel konstruktion. Denne opfindelse drager brug af glideskinner for vibrationsbjælker, som anvendes under fremstillingen af gulvet ved hjælp af permanente forme. Ved tilvejebringelse af legemerne med enten huller eller både huller og konsoller kan der opnås 10 kontinuerlig forstærkning, hvilket betyder, at krymperevner ikke opstår i gulvet langs disse legemer.A method of producing high-quality concrete floors 5 is known in terms of flatness and rational construction. This invention draws on the use of sliding rails for vibration beams used in the manufacture of the floor by means of permanent molds. By providing the bodies with either holes or both holes and brackets, 10 continuous reinforcement can be obtained, which means that shrinkage cracks do not occur in the floor along these bodies.

Under fremstillingen af disse legemer er man stødt på en række problemer, som alle kunne løses ved hjælp af almindelig kendt teknologi (f.eks. betonkvaliteter, der er veleg-15 net til hårdt slid). Et problem har imidlertid vist sig at være at betydelig større kompleksitet. Det angår den kendsgerning, at når legemerne støbes, hvilket foregår i såkaldte batteriformo, skal legemerne være line<ere. Vanskeligheden består dels i den kendsgerning, at det er vanskeligt at 20 fremstille forme med tilstrækkelig linearitet og i, at formene efter gentagende anvendelse får en ikke-lineær form som følge af håndteringen.During the manufacture of these bodies, a number of problems were encountered, all of which could be solved by commonly known technology (for example, concrete grades suitable for hard wear). However, one problem has been found to be of considerably greater complexity. It concerns the fact that when casting the bodies, which takes place in so-called battery form, the bodies must be linear. The difficulty lies partly in the fact that it is difficult to produce molds of sufficient linearity and in that after repeated application the molds take on a non-linear shape as a result of the handling.

Den foreliggende opfindelse foreslår et apparat, der muliggør fremstilling ved hjælp af billige forme, der er veleg-25 net til at bibringe legemerne god linearitet.The present invention proposes an apparatus which enables manufacture by means of inexpensive molds suitable for imparting good linearity to the bodies.

Formene kan være fremstillet af tyndt raetalplademateriale, som bøjes til den ønskede tværsnitsform. De enkelte sektioner forbindes derefter ved punktsvejsning. Dette medfører, at der opstår varmespændinger, som forårsager deformation 30 af pladematerialerne med heraf følgende katastrofale konsekvenser for brugen af de resulterende legemer. Der er også blevet forsøgt anvendt injektions-støbt aluminium, men efter håndteringen blev dette produkts egenskaber ret dårlige. Når dette var tilfældet, var der mindre mulighed forThe molds may be made of thin steel sheet material which bends to the desired cross-sectional shape. The individual sections are then joined by spot welding. This results in heat stresses which cause deformation of the sheet materials, with consequent catastrophic consequences for the use of the resulting bodies. Injection-molded aluminum has also been used, but after handling this product's properties became rather poor. When this was the case, there was less opportunity

DK 152793BDK 152793B

22

Apparatet ifølge opfindelsen er ejendommeligt ved, at rørendes i hovedsagen cirkulære tværsnit er således modificeret inden for den nedre del, at der imellem to bjælker dannes bro ved hjælp af et plant stykke, at rørene på undersiden er forsynet 5 med en langsgående skinne, hvis tværsnit er et omvendt T, at skinnen på langs af røret er afbrudt på et antal steder med en indbyrdes ens afstand, at der imellem bjælkerne er fastgjort plader, som er forsynet med en Y-formet fordybning, og som er fastgjort på en sådan måde, at alle fordybningernes åbninger 10 vender i samme retning i bjælkernes langsgående retning, og at pladerne er således placeret, at deres øvre overflade befinder sig i samme plan som bjælkernes øvre overflade, og afstanden imellem pladerne er den samme som afstanden imellem afbrydelserne i skinnen på rørene, hvorved rørene er indrettet til ef-is terfølgende at blive anbragt på plads imellem bjælkerne, idet skinnernes endeflader presses an imod bunden af pladernes fordybninger, hvorved rørenes skinner tvinger ind i den indre del af den enkelte fordybning, og hvorved røret styres både i lodret og vandret retning.The apparatus according to the invention is characterized in that the substantially circular cross-section of the pipe is so modified within the lower part that a bridge is formed between two beams by means of a flat piece, the tubes on the underside being provided with a longitudinal rail whose cross-section is an inverted T, that the rail is longitudinally interrupted by the tube at a number of places spaced apart, that plates are provided between the beams, which are provided with a Y-shaped recess and which are fixed in such a way; that all the apertures 10 of the recesses face in the same direction in the longitudinal direction of the beams and that the plates are positioned so that their upper surface is in the same plane as the upper surface of the beams and the distance between the plates is the same as the distance between the breaks in the rail of the pipes , whereby the tubes are arranged to be subsequently placed in place between the beams, the end faces of the rails being pressed against the bottom of the recesses of the plates. The rails of the tubes force into the inner part of the individual recess, and whereby the tube is guided in both vertical and horizontal directions.

2 02 0

Herved opnås, at der tilvejebringes e,t apparat som er i stand til at fremstille de pågældende betonlegemer med en høj grad af linearitet. Dette skyldes, at de sidebegrænsende rør 3 trods eventuelle forkastninger bliver rettet ind fuldstændigt 2c parallelt med de i formen værende bunddannende bjælker som følge af. de T-formede skinners indskydning i fordybningerne i de plader, som med indbyrdes afstand er fastgjort til bjælkerne. Pladerne er fortrinsvis fastgjort til bjælkerne ved fastsvejsning og opretholder derved disse med en ønsket indbyrdes 30 afstand og parallelitet. Rørene kan efter endt støbning fjernes fra bjælkelaget med henblik på rengøring af de forskellige dele, og efter endt rengøring kan rørene let anbringes på plads igen, idet pladerne med fordybningerne og disses samvirk-ning med de T-formede skinner virker som en bajonetlås.This provides an apparatus capable of producing the concrete bodies concerned with a high degree of linearity. This is because, despite any faults, the side-restricting pipes 3 are completely aligned 2c parallel to the bottom forming beams as a result. the insertion of the T-shaped rails into the recesses in the plates which are spaced apart at the beams. The plates are preferably attached to the beams by welding, thereby maintaining them with a desired spacing and parallelism. After finishing the pipes, the pipes can be removed from the beam layer for cleaning of the various parts, and after the final cleaning, the pipes can easily be put back in place, the plates with the recesses and their interaction with the T-shaped rails act as a bayonet lock.

3 53 5

Opfindelsen forklares nærmere nedenfor under henvisning til tegningen, hvor fig. 1 viser et tværsnit af en del af en foretrukken udførelsesform for indretningen ifølge opfindelsen, set under brug, 3The invention is explained in more detail below with reference to the drawing, in which fig. 1 is a cross-sectional view of a portion of a preferred embodiment of the device according to the invention, seen in use; 3

DK 152793 BDK 152793 B

og fig. 2 en perspektivisk afbildning af en plade til anbringelse imellem bunddannende bjælker og til løsbar fastgørelse af si-5 dedannende rør.and FIG. 2 is a perspective view of a plate for placement between bottom forming beams and for releasably attaching side forming tubes.

Den i fig. 1 viste indretning består af et antal parallelle bjælker 1. Bjælkerne 1 danner et leje af bjælker, der består af en ramme af svære bjælker, hvor rammen kan have en længde fra 10-15 m og en bredde fra 1 til 2 mm. Inden for rammen 10 strækker bjælkerne sig med ens indbyrdes afstand, idet de er indbyrdes forbundet ved hjælp af et antal plader -eller brikker 5, der er fastsvejset til bjælkerne 1 med den øvre overflade i flugt med bjælkernes øvre overflade. Oven på disse bjælker er der anbragt et antal parallelle rør 2 med en planeret del på 15 periferien 3. På hvert rør er der fastgjort en T-:skinne 4, som har visse afbrydelser, og som strækker sig langs røret 2.The FIG. 1, the arrangement shown consists of a number of parallel beams 1. The beams 1 form a bed of beams consisting of a frame of heavy beams, the frame having a length of 10-15 m and a width of 1 to 2 mm. Within the frame 10, the beams extend with equal spacing, being interconnected by a plurality of plates or pieces 5 welded to the beams 1 with the upper surface aligned with the upper surface of the beams. On top of these beams are arranged a plurality of parallel tubes 2 with a planed portion on the periphery 3. On each tube is attached a T-: rail 4, which has certain interruptions and which extends along the tube 2.

Pladerne 5 er, som det især fremgår af fig. 2, forsynet med en Y-formet fordybning eller udskæring 6, som består af en indre 20 sektion 7 og en udvidende ydre sektion 8. Pladerne 5 er anbragt med samme indbyrdes afstand som afbrydelserne i rørenes 2 T-formede skinner 4. Pladernes 5 fordybninger 6 samt tykkelse er således tildannet, at rørenes 2 skinner 4 kan optages urokkeligt heri på bajonetagtig måde, F.eks. kan der findes en 25 plade for hver meter, og hver plade kan have en længde på 5 cm.The plates 5 are, as can be seen from FIG. 2, provided with a Y-shaped recess or cut-out 6, which consists of an inner section 20 and an expanding outer section 8. The plates 5 are spaced at the same distance as the interruptions in the tubes 2 T-shaped rails 4. The recesses of the plates 5 6 as well as thickness are formed so that the rails 4 of the tubes 2 can be accommodated inconveniently therein in a bayonet-like manner. a 25 plate can be found for each meter, and each plate can be 5 cm long.

Det ér naturligvis meget vigtigt, at lejet af bjælker består af stærke bjælker, og at planheden er nøjagtigt justeret. Hele 3Q lejet af bjælker er derefter placeret oven på tre eller flere lejekonsoller, som selv forsynes med vibrationsfrembringende indretninger, alle med henblik på at sikre tilfredsstillende støbni ng.Of course, it is very important that the bearing of beams consists of strong beams and that the flatness is precisely adjusted. The entire 3Q bearing of beams is then placed on top of three or more bearing brackets, which themselves are provided with vibration generating devices, all for the purpose of ensuring satisfactory casting.

3535

Claims

Apparatus for casting longitudinal concrete bodies (9) in the form of so-called battery casting, with a high degree of linearity and having molds formed by tubes (3) having a substantially circular cross-section and located on and between beams ( 1) extending within a frame parallel to the longitudinal sides of the frame, which beams each constitute a lower constraint and two parallel adjacent tubes (3) constitute the side boundaries of a cavity for molding the individual concrete body, characterized in that the tubes (3) substantially circular cross sections are so modified within the lower, c portion, that bridges are formed between two beams (1) by means of a flat piece (11) that the tubes on the underside are provided with a longitudinal rail (4). ), the cross-section of which is an inverse T, that the rail along the length of the pipe is interrupted at a number of places spaced apart, that between the beams (1), plates (5) are provided which are provided with a Y shaped recess (6-8) and which is attached to a p such that all the recesses (6-8) open in the same direction in the longitudinal direction of the beams (1) and that the plates are arranged so that their upper surface is in the same plane as the upper surface of the beams (1) and the distance between the plates is the same as the distance between the interruptions in the rail (4) of the pipes (3), whereby the pipes are arranged to subsequently be placed in place between the beams (1), with the end faces of the rails (4) pressed against the bottom. of the forks of the plates (5) of the plates (5), whereby the rails (4) of the tubes (3) are forced into the inner part (7) of the individual recess, and whereby the tube (3) is guided in both vertical and horizontal directions. 3 5