EP0407632B1 - Verfahren zur Herstellung von Betonrohren und Rohrpresse zur Durchführung des Verfahrens - Google Patents

Verfahren zur Herstellung von Betonrohren und Rohrpresse zur Durchführung des Verfahrens Download PDF

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Publication number
EP0407632B1
EP0407632B1 EP89112630A EP89112630A EP0407632B1 EP 0407632 B1 EP0407632 B1 EP 0407632B1 EP 89112630 A EP89112630 A EP 89112630A EP 89112630 A EP89112630 A EP 89112630A EP 0407632 B1 EP0407632 B1 EP 0407632B1
Authority
EP
European Patent Office
Prior art keywords
pipe
concrete
wall
smoothing cylinder
press
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
EP89112630A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0407632A1 (de
Inventor
Gregor Kern
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0407632A1 publication Critical patent/EP0407632A1/de
Application granted granted Critical
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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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/92—Methods or apparatus for treating or reshaping
    • B28B21/94—Methods or apparatus for treating or reshaping for impregnating or coating by applying liquids or semi-liquids
    • 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
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
    • B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
    • B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
    • B28B21/24—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts using compacting heads, rollers, or the like
    • B28B21/26—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts using compacting heads, rollers, or the like with a packer head serving as a sliding mould or provided with guiding means for feeding the material

Definitions

  • the invention relates to a method for the production of concrete pipes in a pipe press with a tubular form serving as formwork, which pass through with a rotating roller head arranged in its longitudinal axis and the concrete is rolled and pressed with press rollers provided on the roller head and with one of the press rollers as part of the roller head Subsequent smoothing cylinder is smoothed, with an impregnating agent being supplied to the still moist concrete on the inner wall of the concrete pipe via the roller head under pressure.
  • the invention relates to a pipe press for the production of concrete pipes with a tubular form serving as formwork, with a roller head rotating on a shaft and movable up and down in the longitudinal axis of the tubular form, which presses the concrete rolling and pressing rollers, a downstream, the rolled and pressed concrete smoothing cylinder and a line through which an impregnating agent can be supplied under pressure to the still wet concrete on the inner wall of the concrete pipe.
  • a method and a pipe press of the type mentioned are known from SU-A-688 342.
  • This publication describes the production of concrete pipes in the roll-press process using press rolls and a smoothing cylinder arranged downstream of the press rolls. Water is brought into the work area of the press rolls to moisten the inner surface of the tube during pressing.
  • DE-A-31 15 985 describes the inner lining of already formed and hardened concrete pipes with plastic or the like.
  • the flowable plastic is applied to the inner wall of the pipe via a preparation and discharge cylinder, spread out with a drawing head and smoothed with a smoothing ring.
  • the object of the invention is to develop a method of the type mentioned at the outset which results in tubes whose inwardly facing surface is largely liquid-tight and has a high abrasion resistance. Furthermore, a pipe press of the type mentioned at the outset is to be specified, with the aid of which this method can be used directly in one operation in the production of concrete pipes.
  • This task is procedurally achieved in that impregnating agent is introduced via the smoothing cylinder into the concrete, which has already been partially smoothed, under such high pressure that it penetrates approx. 10 mm deep into the inner wall of the concrete pipe and after the concrete pipe has hardened, it becomes corrosion-resistant and gives an abrasion-resistant protective layer.
  • At least one pipe is guided within the shaft from its upper end to approximately the middle height of the smoothing cylinder, which pipe divides at its lower end into a plurality of distributor lines which run radially to the wall of the smoothing cylinder and have free outlets.
  • the impregnation agent can be introduced through the pipe and the distribution lines into the concrete, which has already been partially smoothed with the smoothing cylinder, under such high pressure that it penetrates approx. 10 mm deep into the inner wall of the concrete pipe and, after the concrete pipe has hardened, becomes corrosion-resistant and abrasion-resistant Protective layer results.
  • the corrosion-resistant and abrasion-resistant layer on the inside of a concrete pipe during the manufacture of the pipe, that is, in a state in which the concrete has not yet hardened.
  • the impregnation liquid penetrates at least 10 mm deep into the concrete mass and hardens there together with the concrete.
  • the protective layer produced in this way has a strength and uniformity which is not known from the concrete pipes impregnated subsequently, ie after curing. Due to its thickness, the protective layer acts as an additional reinforcement of the concrete pipe after hardening. This is an additional advantage of the impregnation process according to the invention, which is not known from the impregnation processes used previously.
  • the pipe press has a vertical pipe shape 1, in the longitudinal axis of which a shaft 2 rotating in the counterclockwise direction is arranged.
  • the shaft 2 leads from a gear 4 arranged in a gear 3 to a smoothing cylinder 5 which, together with press rollers 6, forms a roller head of the tube press.
  • the shaft 2 is surrounded by an outer shaft 7, which rotates clockwise and leads from a gear 8 in the transmission 3 to the two upper press rollers 6.
  • a tube 9 is guided, which protrudes with its upper end from the gear 3 and is closed there by a rotating device 10, while the lower end of the tube 9 approximately in the radial direction in the middle of the interior of the smoothing cylinder 5 branched outgoing network.
  • the number of distributor lines 11 depends on the diameter of the smoothing cylinder 5 and is on average 4-8 distributor lines. Of course, more distributor lines can be provided for smoothing cylinders with a larger diameter.
  • the distributor lines 11 open on the outer surface of the smoothing cylinder 5 into pretensioning nozzles 13 which lie in an annular channel running along the circumference of the smoothing cylinder.
  • the pipe press works in the following way: Simultaneously with the beginning of the filling of the concrete into the pipe form 1, which is compressed by the press rollers 6 and smoothed by the smoothing cylinder 5 on the inner wall of the concrete pipe, a synthetic resin solution is used as impregnating agent for the concrete in the by means of a feed line 12 via the rotating device 10 Given tube 9 and led under pressure to the biasing nozzles in the annular channel of the smoothing cylinder 5. From the prestressing nozzles, the synthetic resin solution is distributed in the ring channel over the entire circumference of the smoothing cylinder 5 and penetrates into the concrete, which has in some cases already been smoothed but is still moist.
  • the working pressure in the pipe 9 and in the distribution lines 11 is set so that the synthetic resin solution can penetrate at least 10 mm deep into the concrete pipe. By changing the working pressure, smaller or greater penetration depths can be set.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
EP89112630A 1988-03-08 1989-07-11 Verfahren zur Herstellung von Betonrohren und Rohrpresse zur Durchführung des Verfahrens Expired - Lifetime EP0407632B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3807511A DE3807511A1 (de) 1988-03-08 1988-03-08 Verfahren zur herstellung von betonrohren und rohrpresse zur durchfuehrung des verfahrens

Publications (2)

Publication Number Publication Date
EP0407632A1 EP0407632A1 (de) 1991-01-16
EP0407632B1 true EP0407632B1 (de) 1993-03-03

Family

ID=6349120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112630A Expired - Lifetime EP0407632B1 (de) 1988-03-08 1989-07-11 Verfahren zur Herstellung von Betonrohren und Rohrpresse zur Durchführung des Verfahrens

Country Status (5)

Country Link
US (1) US5051223A (enrdf_load_stackoverflow)
EP (1) EP0407632B1 (enrdf_load_stackoverflow)
AT (1) ATE86167T1 (enrdf_load_stackoverflow)
DE (2) DE3807511A1 (enrdf_load_stackoverflow)
ES (1) ES2041375T3 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4957424A (en) * 1989-03-13 1990-09-18 Hydrotile Machinery Company Concrete pipe making machine
US5248248A (en) * 1989-11-13 1993-09-28 Adly Tarek A Machine for making concrete pipes
DE4422891C1 (de) * 1994-06-30 1995-03-02 Wensauer Betonwerk Gmbh Verdichtungskopf einer Fertigungsmaschine für Stahlbetonrohre
IT1295915B1 (it) * 1997-11-03 1999-05-28 Co Pre M Costruzioni Prefabbri Un metodo per produrre un tubo di calcestruzzo rivestito internamente ed un tubo cosi' ottenuto
US20030190384A1 (en) * 2002-04-04 2003-10-09 Baldwin Jackie Lynn Concrete rollerhead assembly
DK175871B1 (da) * 2003-01-10 2005-05-02 Pedershaab Concrete Technologi Fremgangsmåde samt apparat til fremstilling af betonrör
DE10314722C5 (de) * 2003-03-31 2010-03-04 Schlosser-Pfeiffer Gmbh Vorrichtung und Verfahren zur Herstellung von mehrschichtigen Betonrohren
WO2013173030A1 (en) 2012-05-14 2013-11-21 Hawkeye Concrete Products Co. Concrete roller head

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1768451A (en) * 1930-06-24 Pipes
DE1074478B (de) * 1960-01-28 Georg Prmzmg o H G Betonformen- und Maschinenfabrik, Weiler bei Blaubeuren Vorrichtung zum Glatten zylindrischer Innenw andungen von vorverdichteten Betonhohlkorpern
US1510117A (en) * 1920-07-27 1924-09-30 Vass Josef Von Molding hollow bodies
US1669768A (en) * 1926-11-08 1928-05-15 George C Martin Process of treating and forming pipe
US1788748A (en) * 1928-03-07 1931-01-13 August E Schutte Method of making concrete piles
US1838546A (en) * 1928-07-05 1931-12-29 American Concrete Pipe Company Concrete pipe machine
US1979655A (en) * 1933-06-23 1934-11-06 American Concrete And Steel Pi Method of lining concrete pipe and the like
GB509113A (en) * 1938-07-05 1939-07-11 Aodhgan O Rahilly Improvements in and relating to the manufacture of concrete pipes and tubes
US2533579A (en) * 1948-12-24 1950-12-12 Nelson E Gowing Method of and apparatus for the formation of concrete pipes
FR1035508A (fr) * 1951-09-21 1953-08-25 Tuyaux De Distrib Soc D Procédé et dispositif pour rendre étanches les tuyaux de ciment
US3091013A (en) * 1960-12-27 1963-05-28 Mott L Robinson Apparatus and method for forming monolithic pipe
US3217077A (en) * 1962-02-27 1965-11-09 Cocke Hill Method of producing lined concrete pipe
AT277035B (de) * 1968-03-20 1969-12-10 Ettlingen Pfeiffer Kg Maschf Verfahren und Einrichtung zur Herstellung von Zementrohren
FR1589664A (enrdf_load_stackoverflow) * 1968-05-08 1970-04-06
US4079500A (en) * 1975-11-20 1978-03-21 Wilbur E. Tolliver Method of making reinforced concrete pipe
DE2738944C2 (de) * 1977-08-30 1982-09-16 Horst Ing.(Grad.) 7522 Philippsburg Kern Vorrichtung zur Herstellung eines Betonrohres
US4340553A (en) * 1978-12-29 1982-07-20 Hydrotile Machinery Company Machine and method for making concrete product
DE3115985A1 (de) * 1981-04-22 1982-11-11 H.W. Steenweg GmbH, 4440 Rheine Verfahren zur herstellung von mit einer innenauskleidung aus kunststoff o.dgl. versehenen betonrohren sowie vorrichtung zur durchfuehrung des verfahrens
US4639342A (en) * 1984-06-11 1987-01-27 Hydrotile Machinery Company Combined concrete feed and packerhead lift control

Also Published As

Publication number Publication date
EP0407632A1 (de) 1991-01-16
DE3807511C2 (enrdf_load_stackoverflow) 1991-06-13
US5051223A (en) 1991-09-24
DE58903682D1 (de) 1993-04-08
DE3807511A1 (de) 1989-09-21
ATE86167T1 (de) 1993-03-15
ES2041375T3 (es) 1993-11-16

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