EP1160065A2 - Procédé et dispositif pour la fabrication de tuyau à manchon à partir d'un matériau compactable - Google Patents

Procédé et dispositif pour la fabrication de tuyau à manchon à partir d'un matériau compactable Download PDF

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Publication number
EP1160065A2
EP1160065A2 EP01110521A EP01110521A EP1160065A2 EP 1160065 A2 EP1160065 A2 EP 1160065A2 EP 01110521 A EP01110521 A EP 01110521A EP 01110521 A EP01110521 A EP 01110521A EP 1160065 A2 EP1160065 A2 EP 1160065A2
Authority
EP
European Patent Office
Prior art keywords
gravity
socket
longitudinal axis
angle
surface sections
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.)
Granted
Application number
EP01110521A
Other languages
German (de)
English (en)
Other versions
EP1160065A3 (fr
EP1160065B1 (fr
Inventor
Helmut Kuch
Jörg-Henry Schwabe
Torsten Benzin
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.)
Institut fuer Fertigteiltechnik und Fertigbau Weimar eV
Original Assignee
Institut fuer Fertigteiltechnik und Fertigbau Weimar eV
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 Institut fuer Fertigteiltechnik und Fertigbau Weimar eV filed Critical Institut fuer Fertigteiltechnik und Fertigbau Weimar eV
Publication of EP1160065A2 publication Critical patent/EP1160065A2/fr
Publication of EP1160065A3 publication Critical patent/EP1160065A3/fr
Application granted granted Critical
Publication of EP1160065B1 publication Critical patent/EP1160065B1/fr
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
    • 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
    • B28B21/242—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 the working diameter of the compacting mechanism being adjustable, e.g. the compacting rollers on the head being displaceable
    • 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

Definitions

  • the invention relates to a method for producing a socket pipe from a compactable mixture, in particular from concrete, in a hollow mold with a longitudinal axis oriented in the direction of gravity and a in the direction of gravity lying below socket shape section, in which the Batch first in the socket shape section and then ascending in the rest Filled in the area of the mold and compressed under the action of force becomes.
  • the invention relates to a device for producing a Socket pipe from a compactable mixture, in particular concrete, in a hollow shape with a longitudinal axis oriented in the direction of gravity and a sleeve shape section lying below in the direction of gravity a compression device on which one or more surface sections are provided are under force during the filling of the batch squeeze the compressible batch, the force being its main component in each case in the direction of the normals established on such a surface section acts and the normal encloses an angle ⁇ with the direction of gravity.
  • Concrete and reinforced concrete pipes for pipelines are common at their ends provided with suitable geometries to ensure a tight coupling of the pipes or to enable coupling to other elements of a wiring harness.
  • one end of simple pipe pieces is used as a sleeve with a slightly enlarged one Inner diameter, whereas the other end is straight runs out or tapers somewhat on its outer wall to a so-called pointed end is.
  • a pipe with its smooth End or its tip end inserted into the sleeve of the other pipe. A precise fit allows the connection point to be tight achieve.
  • Straight socket pipes made of concrete can be used in hollow shapes in the direction of Establish the upright longitudinal axis of gravity by using the Concrete is poured into the hollow form from above, using suitable devices Inner wall of the mold is placed and compressed there.
  • the use of Hollow forms with the socket-shaped section at the bottom enable formwork removal of the socket pipe after its compression, without this hardening of the batch must be waited for.
  • the hollow shape usually includes a cylindrical outer shell and other shaping Components for forming the geometry of the pipe ends.
  • a sleeve with a slightly enlarged inner diameter becomes a Form ring with a corresponding negative contour inserted into the outer shell.
  • the one between the contoured is first Ring and the outer shell of the space filled with compressible mixture. Then the further construction of the socket pipe takes place along the inner wall the outer shell.
  • the compactable mixture is made using a suitable Pressing tools pressed against the inner wall of the outer shell.
  • roller heads with several pressure rollers are used for this press the filled batch radially against the wall of the outer mold, compressing it and at the same time smooth the inner wall of the socket pipe.
  • the socket area can by a roller head or another acting in the radial direction Press tool the mixture located between the mold ring and the jacket radially not be compressed.
  • Such manufacturing facilities are for example from DE 42 109 94 A, SU 1567376 A and US 4,756,861 A known.
  • socket pipes is the transition area between the through Vibrations compressed zone and the compacted by pressing in the radial direction Zone particularly susceptible to damage. It also extends at vibration engineering Compression of the batch in the socket molding section the manufacturing time for the formation of a socket pipe.
  • EP 0 015 469 B1 describes a method and a device at the beginning known type, with an additional compression effect in the socket molding section is achieved without additional mechanical vibrations.
  • These Device described for centrifugal pressing of a concrete pipe uses a Roller head with radial rollers and one arranged above the radial rollers Pressure ring.
  • the pressure ring has a frustoconical outer wall, which is extends along the inner wall of the outer shell and in the direction of gravity rejuvenated.
  • Through the frustoconical outer wall of the pressure ring is a the compression of the batch in the socket molding section favors back pressure generated because the frustoconical outer wall of the pressure ring a counter gravity-directed evasion of the batch along the inner wall the outer shell hampers.
  • the compression effect that can be achieved with this is due to the arrangement of the Limited pressure ring above the radial rollers and in a more complicated Geometry of the cavity to be filled in the socket shape section, for example if a seal is embedded, not sufficient.
  • Is in the socket pipe Embedding reinforcement cage is through the frustoconical outer wall caused flow obstruction of the mixture is not sufficient to a greater compression to achieve in the socket shape area, because the maximum outer diameter of the pressure ring is limited by the reinforcement in the area of the pipe.
  • the invention is based on the object, a method and a To create device of the type mentioned, in which avoidance additional noise emissions a high degree of compression of the batch in the socket molding section is achieved.
  • the above object is achieved by a method of the aforementioned Kind solved in which the direction of the pressure-exerting force K at least in Area of the sleeve molding section is inclined against the direction of gravity or at least in the area of the socket shape section with a force on the batch is acted, the main direction of action with the direction of gravity encloses an angle in the range 0 ° ⁇ ⁇ 90 °.
  • the batch to be compressed is actively moved into the socket section pressed. Due to the inclination of the direction of the pressure-exerting force K a complete, void-free filling of the sleeve section and a achieved particularly effective compaction. This allows sleeves with high Establish dimensional accuracy and strength.
  • the pressure-exerting force K is preferably in the circumferential direction of the hollow mold applied all around to the compactable mixture. This results in a pulsating load on the batch, which further increases the Compression is achieved.
  • the device according to the invention allows directional compression of the batch, such as that of conventional Roller heads is known, in addition a push with a down, i.e. in Direction of gravity or at least one with a force downward force component.
  • this allows the batch compress particularly effectively in the socket shape section. It can be for the Compression of the batch in the area of the socket shape section and along an adjoining shaft section with a constant inner diameter a largely uniform compression can be achieved.
  • On the finished one Socket pipe results in a homogeneous structure over the entire length. In particular become inhomogeneities in the transition area between the socket shape section and the shaft portion avoided.
  • the sleeve pipe can be used continuously Manufacture from the bottom edge to the top edge of the hollow mold.
  • a mechanical one is preferred for the inclination of the pressure-exerting surface sections Gearbox provided, which is particularly robust and therefore less prone to failure is.
  • Rollers are preferably provided for compacting the mixture, which on their Form the pressure-exerting surface sections on the outer circumference.
  • the usage von Rolle has proven itself in radial pressing. They are also easy to manufacture and ensure a good smoothing of the inner wall of the socket pipe.
  • the roles are on one Legs of a kinking axis mounted, which in turn with another Leg is rotatably mounted on a carrier of the compression device.
  • the leg mounted on the compression device with respect to the longitudinal axis angled to the hollow form.
  • the one in the compactable batch generated pressure cone reaches all corners of the socket shape section, in particular also the inside edge of the face of the socket pipe and the Inner wall of the sleeve so that it can be manufactured with great accuracy. This is for a high sealing effect between coupled socket pipes advantageous.
  • the leg of the axle mounted on the carrier closes with the Longitudinal axis of the hollow tube at an acute angle ⁇ . Furthermore, that's the role supporting leg compared to the leg mounted on the carrier around the the same acute angle ⁇ cranked.
  • This configuration has the advantage that in a strict radial alignment of the pressure-exerting surface sections of the rollers, i.e. in the case of pure radial pressing, the conveying effect explained above is avoided , but will occur when the rollers are inclined.
  • rollers In principle, it is possible to rigidly connect the rollers to the legs, so that with a rotating relative movement between the compression device and the hollow shape around the longitudinal axis, the rollers over the inner wall of the developing Slide the socket pipe.
  • other shapes can also be used Sliding bodies or shoes are used, which for the purpose of Compaction over the batch.
  • rollers which are rotatably mounted on the respective leg, a better smoothing of the inner wall of the socket pipe can be achieved. The roles To do this, roll on the inner wall of the sleeve pipe that forms.
  • the rotation of the rollers around the each leg provided additional drive means. This allows the relative speed between the pressure-exerting surface sections and the with these batches that come into contact. This is for one freer process design advantageous. For example, the roles with a Rotate speed that is greater or smaller than that at free resulting rotational speed.
  • An advantageous embodiment of the invention therefore includes the mechanical transmission a central gear that can be rotated relative to the carrier and with gears combs, which are provided on the legs mounted on the carrier. By rotating the central gearwheel in relation to the compression device can the inclination of the surface sections in a particularly simple manner and Way to be synchronized.
  • the simplest possible actuation of the central gearwheel can be achieved with a this done rotationally coupled actuating shaft, which is through a hollow shaft the compression device extends. At this hollow shaft is the Carrier attached, which can be rotated via the hollow shaft. By a relative rotation between the hollow shaft and the actuating shaft becomes the The angle of inclination of the pressure-exerting surface sections is set.
  • the mechanical transmission can also be used as an articulated transmission be formed, which is essentially in the direction of Longitudinal axis of the hollow form extending actuator is drivable.
  • the articulated gear is, for example, a four-bar, on the driving link of which Actuator engages and on the driven member a pressure body, for example, a pressure roller sits, the longitudinal axis of which is to the longitudinal axis the hollow shape parallel position can be tilted out.
  • the object of the invention is also achieved in that means for change the position of at least one of the surface sections that during of filling the batch put pressure on the batch, both at constant angle ⁇ as well as variable angle ⁇ are provided.
  • the pressure-exerting surface sections as already described above formed on rotating rollers is for example at a constant angle ⁇ the change in position of one or more of the surface sections in radial Direction to the circumferential axis or to the longitudinal axis A provided until that of the circumferential circle described in the outer surface section is larger than that Nominal size of the concrete pipe to be manufactured.
  • at least one these surface sections can describe a circle during the circulation, the Diameter is larger than the later inner diameter of the one to be manufactured Concrete pipe. This gives you the opportunity to further increase the compression optimize.
  • the outer surface sections are defined in the direction during the application of pressure retracted on the revolving axis until the circumferential circle described is equal to the inside diameter of the concrete pipe to be manufactured.
  • Fig. 1 to Fig. 3 of the first embodiment show one during manufacture Hollow mold 1 commonly used by socket pipes, which has a straight shaft section 2 with constant outer diameter, and on an axial End section a sleeve molding section 3 with an enlarged outer diameter trains.
  • the hollow mold 1 comprises an outer shell 4 with which the outer mold of the socket pipe to be manufactured is determined.
  • This outer shell 4 comprises the shaft section 2 and a conical section which extends to the Sleeve molding section 3 extended to end in a cylindrical section.
  • At the axial end section of the hollow mold 1 there is also a contoured one Form ring 5 is provided, which the geometry of the front and inner wall of the socket molding section 3 specifies.
  • the latter is stepped here, so that the later socket pipe a receptacle for a substantially smoothly running Tube end is formed.
  • contouring the form ring differently 5 can also produce a different inner shape of the sleeve than the one shown here.
  • the hollow mold 1 further comprises a smoothing head 6, which is axially from the outside in a central opening of the mold ring 5 is inserted to an inner mold wall to train.
  • the hollow mold 1 With its longitudinal axis A set up vertically so that the longitudinal axis A is aligned with the direction of gravity is.
  • the socket shape section 3 lies at the lower end of the hollow shape 1. In this position gradually becomes a compactable mixture, here a concrete mixture 7, filled from above into the hollow mold 1, which is initially in the socket molding section 3 collects.
  • a concrete mixture 7 filled from above into the hollow mold 1, which is initially in the socket molding section 3 collects.
  • the longitudinal axis A of the hollow mold 1 movable compression device 8 is provided, which will now be explained in more detail below.
  • the compression device 8 comprises a cup-shaped carrier 9, which on a lower end of a hollow shaft 10 extending in the direction of the longitudinal axis A. is attached.
  • the outer diameter of the cup-shaped carrier 9 corresponds essentially the inner diameter of the smoothing head 6, so that from above into the Hollow mold 1, the batch which has been poured in hardly ever comes out of the hollow mold 1 can.
  • Applied to the cup-shaped carrier 9 during filling Batch is due to the rotation of the same about the longitudinal axis A in the direction the outer shell 4 of the hollow mold 1 flung and deposited there.
  • the rollers 11 are each on a first leg 13 of a kinking or cranked axis 14 rotatably mounted.
  • the axis 14 is with a second Leg rotatably supported on the cup-shaped carrier 9.
  • the second leg 1 5 closes with the longitudinal axis A an acute angle ⁇ , which can be, for example, 30 °.
  • the offset angle between the first leg 13 and the second leg 15 of the Axis 14 is also selected here at 30 °.
  • the inclination of the rollers 11 results also a displacement of the pressure-exerting surface sections 12 radially outwards, so that in particular in the area of the socket shape section 3 and the latter subsequent transition area of a larger inner wall diameter to a smaller inner wall diameter the batch 7 to close to the Outer shell 4 can be actively pressurized.
  • the rollers 11 dive thereby collision-free into the hollow form 1, even if there is a reinforcement cage 16 is inserted. Evasion of the pressure-loaded batch 7 between a roller 11 and the outer shell 4 is thus severely restricted.
  • a mechanical gear provided in the selected Embodiment is designed as a gear transmission. This is to the Ends of the second legs 15 of the axles 14 each have a bevel pinion 17 rigidly attached, the bevel pinion 17 of the individual axes 14 with a central bevel gear 18 comb. This central bevel gear 18 is at the bottom of the cup-shaped Carrier 9 rotatably mounted. An actuating shaft is used to drive the bevel gear 18 19 is provided, which extends coaxially through the hollow shaft 10.
  • the set angular relationship between the hollow shaft and the actuating shaft 19 can be maintained when the compression device 8 rotates, so that the rollers 11 remain in their inclined position.
  • this angular relationship during the rotation of the compression device 8 too change, for example, with increasing filling of the hollow mold 1, the inclination slowly withdraw the rollers 11 until in the shaft section 2 the in Fig.3 position shown on the left is reached to the mixture 7 to be compressed to apply a pure radial force.
  • the smoothing head 6 is in the upward movement the compression device 8 with its upper edge just below the Rollers 11 tracked.
  • a mechanical transmission in the form of a Joint linkage for tilting the rollers 11 are provided.
  • An example this is shown in Figure 4, in which a roller 11 once in its axially parallel Position to the longitudinal axis of the hollow mold 1 and a second time in an inclined to it Position is shown in which the pressure-exerting surface section 12 the same press the batch 7 obliquely downwards into the socket-shaped section 3 can.
  • a roller carrier 20 via a first joint 21 on the underside a support 22 is pivotally mounted.
  • the carrier 22 corresponds here in its Function of the cup-shaped carrier 9 of the first embodiment.
  • an actuating shaft 19 For pivoting the roller carrier 20 and thus the roller 11 is an actuating shaft 19 provided, to which a coupling member 24 is connected via a second joint 23 is. This coupling member 24 is in turn via a third joint 25 to the roller carrier 20 connected.
  • the actuating shaft 19 By an axial movement of the actuating shaft 19, which in 4 is indicated by a double arrow, the axis of rotation C of a roller 11 are inclined to the longitudinal axis A.
  • gear designs can also be used to tilt the rollers 11 are used.
  • a four-bar linkage can be used with an actuating shaft on the driving link attacks to a roller held on its driven member swivel.
  • the hollow mold 1 is first assembled from its components and aligned with its longitudinal axis A to the direction of gravity, the Sleeve molding section 3 comes to lie below.
  • the compression device 8 sunk into the hollow mold 1 from above and into the one indicated in FIGS. 1 to 3 lowest starting position. Filling the compressible Batch 7 also takes place from above into the hollow mold 1, this first filled with the socket shape section 3 from bottom to top becomes.
  • the compression device 8 becomes the same as the batch 7 rises move axially upward, so that its rollers 11 with their pressure-exerting Surface sections 12 each against the section currently under construction of the socket pipe.
  • socket shape section 3 To compress the batch 7 in the area of the socket shape section 3 the rollers 11 pivoted such that they with their surface sections 12 with a downward force or at least one force with a downward longitudinal component on the compressible mixture 7 press, as shown in Fig.3 in the right half of the picture, in the socket shape section 3 solidify mixture. Also socket shape sections 3 with a more complicated geometry are thus reliable Material filled in and compressed to a sufficient extent so that additional Vibration devices, as they are mostly used in the prior art can be dispensed with.
  • FIG. 5 shows a perspective view of the invention for the sake of clarity Compression device 8 in an embodiment with four in their Inclination to the longitudinal axis A adjustable rollers 11, on which the pressure-exerting Surface sections 12 are formed.
  • a transmission with a bevel gear 18 and bevel pinions 17 is provided.

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  • 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)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
EP01110521A 2000-05-29 2001-04-28 Procédé et dispositif pour la fabrication de tuyau à manchon à partir d'un matériau compactable Expired - Lifetime EP1160065B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10027835 2000-05-29
DE10027835A DE10027835A1 (de) 2000-05-29 2000-05-29 Verfahren und Vorrichtung zur Herstellung eines Muffenrohres aus einem verdichtungsfähigen Gemenge

Publications (3)

Publication Number Publication Date
EP1160065A2 true EP1160065A2 (fr) 2001-12-05
EP1160065A3 EP1160065A3 (fr) 2003-05-07
EP1160065B1 EP1160065B1 (fr) 2006-06-14

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP01110521A Expired - Lifetime EP1160065B1 (fr) 2000-05-29 2001-04-28 Procédé et dispositif pour la fabrication de tuyau à manchon à partir d'un matériau compactable

Country Status (3)

Country Link
EP (1) EP1160065B1 (fr)
AT (1) ATE329737T1 (fr)
DE (2) DE10027835A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1895740A (en) * 1931-07-06 1933-01-31 Bozidar J Ukropina Method of making concrete pipe
DE1118680B (de) * 1958-11-15 1961-11-30 Kanderkies A G Vorrichtung zum Herstellen von Betonrohren
EP0015469A1 (fr) * 1979-03-08 1980-09-17 Georg Fischer Aktiengesellschaft Dispositif pour presser par centrifugation un tuyau en béton à manchon tourné vers le bas

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU804455A1 (ru) * 1979-04-06 1981-02-15 Московский Ордена Трудового Красногознамени Инженерно-Строительный Институтим.B.B.Куйбышева Установка дл формовани трубчатыхиздЕлий
SU806427A1 (ru) * 1979-04-06 1981-02-23 Московский Ордена Трудового Красногознамени Инженерно-Строительный Институтим. B.B.Куйбышева Установка дл формовани трубчатыхиздЕлий
SU1754460A1 (ru) * 1990-01-05 1992-08-15 Харьковский инженерно-строительный институт Головка дл прессовани трубчатых изделий из бетонных смесей

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1895740A (en) * 1931-07-06 1933-01-31 Bozidar J Ukropina Method of making concrete pipe
DE1118680B (de) * 1958-11-15 1961-11-30 Kanderkies A G Vorrichtung zum Herstellen von Betonrohren
EP0015469A1 (fr) * 1979-03-08 1980-09-17 Georg Fischer Aktiengesellschaft Dispositif pour presser par centrifugation un tuyau en béton à manchon tourné vers le bas

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ, Week 198146 Derwent Publications Ltd., London, GB; Class P64, AN 1981-L8868D XP002234900 & SU 804 455 A (MOSC ENG-CONS INST), 15. Februar 1981 (1981-02-15) *
DATABASE WPI Section PQ, Week 198147 Derwent Publications Ltd., London, GB; Class P64, AN 1981-M1304D XP002234898 & SU 806 427 A (MOSC ENG-CONS INST), 25. Februar 1981 (1981-02-25) *
DATABASE WPI Section PQ, Week 199335 Derwent Publications Ltd., London, GB; Class P64, AN 1993-279092 XP002234899 & SU 1 754 460 A (KHARK CIVIL ENG INST), 15. August 1992 (1992-08-15) *

Also Published As

Publication number Publication date
EP1160065A3 (fr) 2003-05-07
ATE329737T1 (de) 2006-07-15
DE10027835A1 (de) 2001-12-06
DE50110113D1 (de) 2006-07-27
EP1160065B1 (fr) 2006-06-14

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