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
  • B28B7/0002—Auxiliary parts or elements of the mould
  • B28B7/0011—Mould seals
• • 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
• • 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
  • B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
• • 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
  • B28B23/005—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with anchoring or fastening elements for 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
  • 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
  • B28B23/0056—Means for inserting the elements into the mould or supporting them in the mould

Definitions

• the invention relates to a method for producing a concrete sleeper, which is equipped with partially embedded support elements for railroad tracks, by inserting the support elements into receiving openings in the mold wall of a sleeper mold, filling liquid or plastic concrete mass into a mold cavity of the sleeper mold and then demolding the sleeper.
• the support elements on the threshold must assume predetermined relative positions in accordance with the respective track system for which the concrete threshold is intended.
• the position of the bracket elements on the threshold must be matched to the track width of the track in question. If the rails of the track are each attached to the threshold by means of at least one mounting element on one side of the rail and at least one mounting element on the other side of the rail, the manner of mounting the rail and the design of the rail itself, such as the transverse dimension, are necessary a rail foot, requirements for the relative position of the mounting elements assigned to a rail.
• a trough-like sleeper mold in the manufacture of the concrete sleeper, which has a mold cavity delimited by a mold bottom and side walls and is designed with a filling opening located at the top when the sleeper mold is filled, at least one receiving opening being provided in the mold bottom for the insertion of a rail mounting element which one in the inserted state is supported on the mold base in a predetermined position, has an anchoring part lying inside the mold cavity above the mold base and a rail holding part lying below the mold base outside the mold cavity.
• support elements are inserted, for example, manually from the mold cavity into a respective receiving opening, the support elements being positioned in the course of the insertion in accordance with the track-related specifications, that is to say, track gauge, etc.
• a relatively close engagement between the receiving opening and the holding elements is provided in order to keep relative displacements of the holding elements as small as possible in the course of the filling of concrete material and, if necessary, a shaking of the sleeper shape for concrete compaction.
• Such a close engagement means that quite large positioning forces are required to insert the mounting elements, so that the mounting of the mounting elements into the receiving openings is difficult and difficult in the case of manual insertion.
• the resulting committee makes the production of sleepers more expensive.
• the production of the sleepers in the late shuttering system has the disadvantage that a large number of sleeper shapes is required per unit of time in relation to a desired manufacturing capacity of sleepers, namely the individual sleeper shape used for the manufacture of a sleeper only after the elapse of a possibly relatively long one Curing time interval can be used for the production of a further threshold.
• the need to equip a sleeper manufacturing facility with a comparatively large number of sleeper shapes requires a corresponding cost, which is reflected in the manufacturing costs attributable to a single sleeper.
• the invention has for its object to enable the production of sleepers of the type mentioned with increased productivity and while ensuring the relative positioning requirements for the support elements on the sleepers.
• a positioning of the holding elements on the sleepers that meets the requirements can be achieved and / and the correctly positioned holding elements can be held on the sleepers in their respective positions, for example even when in the course of filling a sleeper mold with concrete material or / and a vibrator of the sleeper shape, for example for compacting the filled concrete material, forces act on the at least one holding element, which act in the direction of a change in the respective position of the holding element.
• the application device of claim 2 permits "switching on” and “switching off” of the positioning or / and holding force corresponding to the requirements.
• the positioning or / and holding force can be “switched off” when inserting the at least one holding element into a respective receiving opening, so that no excessive forces have to be exerted on the holding element for insertion. If a positioning force is applied, the respective mounting element does not yet have to be positioned exactly when it is inserted, so that manual mounting of the mounting elements can also easily be provided. The exact positioning of the respective mounting element then takes place under the action of the positioning force.
• the implementation of the gravitational force according to claim 4 can be such that, for example, the weight of the sleeper shape is detected on a support base, and the detection of this weight triggers the application of the positioning and / or holding force.
• a direct conversion of the gravitational force can be provided by mechanical or hydraulic means which are actuated by the gravitational force (in particular the weight of the sleeper shape), for example for moving the engagement element into the position with a force application attack.
• an indirect conversion of the weight force can also be provided, for example in such a way that a weight sensor detects the weight of the threshold shape, sends a corresponding signal to a control unit, and this then controls an actuator or the like which controls the positioning or / and Holding force generated.
• the actuator could, for example, drive the engagement element of the application device.
• the support base for the sleeper mold mentioned as a possibility can be a production vibrator which serves to compact the concrete filled into the sleeper mold.
• a second aspect of the invention it is proposed for the method mentioned at the outset that at least one holding element is inserted into at least one receiving opening of at least one mold wall part, which can be separated from the rest of the mold, so that the rest of the mold is removed from it before the threshold has completely hardened Leaving the at least one wall part and the at least one holding element on the unmolded threshold and that this wall part is removed after the threshold has hardened further, leaving the holding part on the threshold.
• the inventive method according to the second aspect can be part of a higher-level overall method according to the invention together with the inventive method according to the first aspect.
• the inventive proposal of the second aspect makes it possible to use the residual shape removed from a not yet fully cured sleeper for the further production of concrete sleepers, while the at least one mold wall part remains on the still hardening sleeper.
• the threshold is therefore first demolded (demoulding) only with regard to the residual shape, while no demolding (demolding) takes place with respect to the at least one mold wall part. Forces can thus be avoided which act on the at least one mounting element inserted into the at least one receiving opening of the molded wall part when the molded wall part is removed and could damage the threshold and / or loosen the anchoring of the mounting element in the threshold.
• the removal of the at least one mold wall part can, for example, wait until the threshold is sufficiently hardened that forces acting on the mounting element can no longer cause damage.
• Claim 14 specifies a possibility of how the residual shape can be removed from the threshold.
• a cover plate or the like can be used as the cover, which is expediently firmly connected to the mold, for example clamped, before the sleeper mold is rotated.
• the respective molded wall part remaining on the threshold serves to fix at least two mounting elements in a predetermined relative position. It could be, for example, jointly assigned support elements to a rail of a track (cf. claim 1 8). It can according to claim 1 9 the two rails of a track each be assigned a separate molded wall part for the relative position fixing of the respective mounting elements.
• the residual shape is removed from the essentially still uncured threshold after it has been poured into the threshold shape and, if necessary, after the concrete mass has been compacted in the threshold shape.
• the threshold in relation to the remaining shape can be produced according to the so-called “immediate demoulding system”, while according to claim 1 6 a much later demoulding of the threshold in relation to the at least one mold wall part is provided, if necessary according to the so-called “immediate demoulding system”.
• the threshold is at least partially removed from the mold before it has completely hardened and that at least two rail mounting elements are then corrected to a relative desired position before the concrete has fully hardened, preferably in a state of Concrete in which any cavities that arise as a result of the correction can be filled up again.
• the method of the third aspect according to the invention can, together with the method of the first aspect and / or the second aspect, be part of a superordinate overall method according to the invention.
• the proposal of the invention according to the third aspect provides that the respective threshold is at least partially removed from the mold before it has completely hardened and that at least two rail holding elements are then corrected with regard to their relative positioning on the threshold (relative desired position), for example to meet the requirements of the used Rail system resulting requirements for the relative position of the rail support elements.
• the main focus is on the relative positions of the rail mounting elements, which at least also determine the track width of a track.
• the correction of the relative positions of the rail mounting elements on the one hand enables a relatively early demolding (demolding) of the threshold in relation to the hardening state of the threshold and on the other hand enables the required relative position to be maintained with high accuracy and reliability.
• the relevant threshold molded parts removed from the threshold can already be used for the production of sleepers.
• the sleeper can even be manufactured using the "immediate demoulding system", in which a sleeper shape filled with concrete is released immediately after the concrete has been compacted, but in the case of prestressed concrete sleepers, the required prestressing of the sleeper is only applied after the concrete has hardened.
• the relative position of the at least two rail holding elements is corrected to the intended relative desired position before the concrete has completely hardened. As a result, sleepers can be produced, in which the relevant support elements assume predetermined relative positions with high accuracy.
• a track gauge setting or / and holding gauge which preferably has a vibrating arrangement, is used for the correction, which, in addition to a setpoint distance in the transverse direction to a longitudinal direction of the rails of the relevant holding elements, adjusts at least one further degree of positioning freedom of the holding elements or / and holds (claim 27).
• the further degree of positioning freedom can be an angular position about a vertical axis of the mounting element, that is to say an alignment of the mounting element with respect to the transverse direction, so that, for example, a contact surface of a respective mounting element runs parallel to the rails.
• the gauge setting and / or stop gauge works according to claim 28 with the intermediation of two mold wall parts.
• the mold wall parts can be mold wall parts remaining on a threshold after removal of a residual mold in the sense of the method according to the second aspect of the invention (cf. claim 20 in this regard).
• a low-water concrete mixture is preferably used, which enables complete or partial immediate demoulding of the concrete formed into a threshold in the respective threshold shape (if necessary after shaking or / and smoothing) and a position correction of embedded mounting elements.
• the invention further relates to a device for the production of concrete sleepers, comprising a trough-like sleeper mold with a mold cavity, which is delimited by a mold base and side walls and is designed with a fill opening at the top when filled, wherein at least one receiving opening is provided in the mold floor for the insertion of a rail mounting element, which in the inserted state is supported on the mold base in a predetermined position, has an anchoring part located inside the mold cavity above the mold base and a rail holding part lying below the mold base outside the mold cavity, and further comprises a support arrangement for carrying the sleeper mold with the filling opening located above during the filling process ,
• the device has a force application device, which is arranged at least during the filling process on the underside of the mold base, for applying an essentially downward positioning or / and Holding force on the rail holding part of the at least one rail holding element.
• the force application device can be at least partially integrated into the support arrangement or attached to it.
• a permanent assignment of the force application device to the support arrangement can be provided (claim 40).
• the support arrangement can be a production vibrator.
• the force application device can also be at least partially integrated into the sleeper shape or attached to it.
• the force application device can be attached at least in part in a permanent assignment to the threshold shape (claim 41).
• the force application device is attached at least in part to the remaining mold in a permanent assignment.
• a demoulding device (demolding device) is preferably provided for lifting the sleeper shape from a sleeper formed therewith.
• the formwork removal device preferably comprises a first formwork removal station for lifting off the sleeper mold, leaving behind the at least one mold wall part on the sleeper, and a second demoulding station for removing the mold wall part that initially remained on the sleeper from the sleeper.
• the device has a position correction gauge which is separate from the sleeper shape and is intended for engagement with positioning elements of at least two mounting elements and / or at least two mold wall parts a position correction station of a sleeper production path, in which the concrete consistency permits a position correction.
• the device is therefore particularly well suited for carrying out the method according to the invention according to the third aspect of the invention. Further developments of the device are specified in claims 51 to 53; in this regard, reference may also be made to the content of claims 33 to 49.
• the mold base has at least one detachable wall part which has at least one receiving opening for a mounting element and from which The mold cavity side can be inserted into a corresponding window of the mold base
• the support arrangement is arranged in a mold circulation path which leads from a filling station equipped with the support arrangement via a mold covering station, a mold turning station and a first demoulding station back to the mold filling station, wherein in the mold covering station, the filling opening of the mold can be closed with a lid, in the mold turning station the sleeper mold including the lid can be turned and in the first demoulding station the remaining mold of.
• the threshold can be raised leaving at least one Molded wall part on the threshold. Furthermore, it is provided that a threshold path branches off from the mold circulation on or after the first demolding station, which has a curing section and, downstream therefrom, a second demolding station in which the at least one mold wall part can be removed from the respective threshold, and that a return path from this second demolding station for the mold wall parts to the filling station, the number of rotating mold wall parts is greater than the number of mold wall parts, which corresponds to the number of remaining molds in circulation.
• Fig. 1 shows a concrete sleeper with rail mounting elements according to the Pandrol Fastclip rail fastening system, which are used to fasten the two rails of a railroad track to the sleeper.
• Fig. 2 shows in Figs. 2a and 2b two side views of such a support member.
• Fig. 3 shows in Figs. 3a, 3b, 3c a process in the manufacture of
• FIG 4, 5 show in detail a possibility of how, according to the exemplary embodiment, positioning and / or holding forces can be applied to mounting elements used in receiving openings in a mold wall of a sleeper mold in the course of placing the weld mold on a support base (possibly vibrator).
• FIG. 6 illustrates in Fig. 6a and 6b the further process of
• 7, 8 show the further sequence of the exemplary embodiment of the production method following the state of FIG. 6b.
• FIG. 9 shows a diagram which, in pictograms, represents a device according to the invention for producing concrete sleepers and an inventive method for producing concrete sleepers according to a respective exemplary embodiment.
• Fig. 10 shows an example manufactured according to Fig. 9
• Fig. 1 1 shows how the dimension a can be corrected using a gauge setting gauge.
• FIG. 1 shows a concrete sleeper 10 manufactured according to a manufacturing method according to the invention, in which Pandrol mounting elements 8 are anchored with a respective mounting element foot in order to hold the two rails 1 2 and 14 of a track.
• Sections of the mounting elements which are also referred to as shoulders 20, protrude above the top 1 8 of the concrete sleeper 10.
• the shoulders 20 have a special design with recesses and projections in order to clamp the rails between two holding elements assigned to a rail in a manner known per se, using special springs called "clips".
• a sleeper shape is expediently used, which has receiving openings in a bottom wall assigned to the upper side 18, into which the holding elements are inserted such that the respective foot is inserted into a mold cavity protrudes the shape and the respective shoulder is arranged on the other side of the bottom wall. This makes it possible to embed the foot in the concrete to be filled into the sleeper mold.
• a sleeper mold 22 is used in which the bottom wall 24 is formed in several parts and comprises two mold wall parts 26 which can be separated from a residual mold 23 of the sleeper mold 22 and a coherent bottom wall section 28 which forms the residual mold 23 with mold side walls.
• the bottom wall section 28 has cutouts 29 into which the mold wall parts 26 can be inserted from the mold cavity and there by the conical configuration of the edges of the respective mold hollow part and the die Recess-defining bottom wall edges are secured flush in the level of the bottom wall.
• the respective molded wall part 26 has two receiving openings 30, into which a respective mounting element 8 can be inserted with its shoulder forward from the cavity, as shown in FIG. 3b.
• a respective mounting element 8 For a correct arrangement of the mounting elements on the threshold, it is necessary that the mounting element is inserted into the respective receiving opening in such a way that two stops 32 and 34 bear against a seal 62 delimiting the receiving opening 30 or the mold wall part itself from the side of the mold cavity, as shown in Fig. 2b.
• the molded wall part 26 is shown in broken lines, the illustration being rotated by 180 ° with respect to the illustration in FIG. 3b.
• the sleeper shape has 22 for the two mold wall parts 26 each have a force application device 36 which is integrated in a respective base 38 of the sleeper mold, which is fastened to the bottom wall section 28 and thus belongs to the residual mold 23.
• the power application device 36 comprises a push pin 40, which is guided in a guide 42 of the respective pedestal 38 and is biased by a spring arrangement 44 into a position in which the push pin 40 projects downward with a lower end section 46 via a lower side 48 of the pedestal.
• a pin projection 58 of the support base 56 presses the push pin 40 upward against the prestressing of the spring arrangement 44, as a result of which the engagement elements 50 are moved in such a way that they Recesses 60 of the shoulders of the respective two holding elements inserted into the receiving openings of the respective mold wall part 26 engage them and pull them into a bearing position of the stops 32 and 34 on the upper side of the mold wall part 26 or the seals 62 which secure the receiving openings against the passage of concrete mass.
• the engagement elements 50 apply positioning and holding forces to the holding elements 8, more precisely to their shoulders 20 projecting outward beyond the mold wall, which in connection with the respective mold wall part 26 and the receiving openings 30 formed therein for a predetermined relative positioning of the holding elements on the sleeper mold and in relation to one another and hold the holding elements in this respective position, while according to FIG. 6a plastic or liquid concrete mass is poured into the sleeper mold 22 (arrow B) while shaking the sleeper mold by means of the manufacturing shaker 56 (the shaking is by double arrows R symbolizes).
• the positioning and holding forces exerted by means of the engaging elements 50 prevent the holding elements from changing their position during the filling or pouring of concrete, so that overall the threshold can be produced with high positional accuracy for the holding elements.
• the relative positioning of the mounting elements with respect to one another is that of the respective rail system or track system dependent specifications, in particular the track width, while the absolute position of the bracket elements on the threshold is generally less important.
• 3a shows the sleeper shape in a state without inserted mounting elements, for example in a state hanging on a crane device, as symbolized by a support cable 70.
• the mold wall parts 26 are already inserted flush into the assigned openings 29 in the bottom wall section 28.
• the mounting elements 8 are inserted mechanically or manually with their shoulder 20 forward into the openings 30 in the mold wall parts 26. It is not necessary that the mounting elements already assume their desired position in the receiving openings 30.
• the force application device 36 is then activated in the manner described, so that the engaging elements 50 engage in the cutouts 60 of the shoulders 20.
• FIGS. 2a and 2b in which it is shown in broken lines how and where the engagement elements 50 engage the shoulders 20.
• the support members 8 are pulled into their desired position in the openings on receiving openings, so that the concrete mass can then be filled into the sleeper mold according to Fig. 6a.
• the forces exerted by the poured concrete by the filling process and / or the shaking by means of the manufacturing vibrator 56 on the holding elements are absorbed by the molded wall parts 26 supported on the bottom wall section 28 and by the engaging elements 50 via the receiving openings or the seals 62, so that the holding elements maintain their respective target position. If the concrete in the sleeper mold 22 is sufficiently compacted by the shaking and, if necessary, smoothed out, the sleeper mold 22 can be covered by a cover plate 72 according to FIG. 6b.
• the cover plate 72 is preferably clamped to the mold 22 in a suitable manner. 7, the covered Schwelle ⁇ form 22, in which the filled concrete mass is formed into the threshold, is lifted again from the support base 56, whereby the push pin 40 is pressed under the action of the spring arrangement 44 and the engagement elements 50 out of their engagement with the extensions 60 of the shoulders 20 are withdrawn again.
• the fastening elements 8 are then held in their respective positions only by their engagement with the receiving openings 30 or the seals 62 associated with them, and by the concrete embedding the anchoring feet 16.
• the threshold 10 is removed from the as yet not hardened threshold 10 in the sense of the so-called "early or immediate demoulding system" (removal) by removing the residual shape 23 comprising the bottom wall section 28, the feet 38 and the mold side walls, the mold wall parts 26 remain on the not yet cured threshold 1 0.
• the mold wall parts 26 easily detach from their openings 29 in the bottom wall 24, no significant forces occur on the mold wall parts 26 or the holding elements 8 during this "early or immediate demoulding" of the rest of the mold, so that there is no danger that the threshold 1 0 is damaged and the bracket elements 8 are loosened in their anchoring in the threshold 10.
• the mold wall parts 26 are those of a rail 1 mutually assigned, in the state shown in FIG. 1 arranged on both sides of the rail, hold the respective bottom wall part 26 in a predetermined relative position so that the dimensions b and c important for tracking the track according to FIG. 10 are maintained.
• the advantages of an early or immediate demoulding system and the advantages of a late demoulding system can be combined to a certain extent.
• the formwork can be carried out at a time when the threshold 10 is sufficiently hardened so that when the mold wall parts 26 are removed via the seals 62, the forces exerted on the mounting elements 8 can no longer cause damage, that is to say the No longer loosen the anchoring of the mounting elements and can no longer modify their relative positioning.
• the mold wall parts 26 remain on the threshold, they also ensure that the relative target positioning of the mounting elements assigned to a rail is maintained.
• the residual mold 23 removed from the not yet hardened sleeper can already be used for the manufacture of further sleepers during the hardening of the sleeper with mold wall parts 26 remaining thereon using at least one, preferably several further sets of mold wall parts 26, as shown in FIG. 9 in Pictograms is illustrated.
• the pictogram 80 corresponds to the filling of the concrete shown in FIG. 6a.
• the holding elements and the application of the positioning or / and holding force according to the above-described inventive proposal have been omitted from the pictogram 80 for the sake of simplification of the drawing; with regard to the holding elements, this applies to all the pictograms of FIG. 9.
• the pictogram 82 represents the covering of the filled Threshold shape and turning the threshold shape.
• the pictogram 84 represents the inclusion of the Residual mold 23 from the not yet fully cured sleeper according to FIG. 8, while the mold wall parts 26 remain on the sleeper.
• the removed residual form 23 can then be returned on a return path 86 symbolized by an arrow to a filling station according to the pictogram 80 in order to pick up concrete again and then again according to the pictograms 82 and 84 a mold covering station, a molding and turning station and a first demoulding station for to go through the rest of the mold 23.
• the threshold partially demolded in the first formwork removal station (pictogram 84) then passes through a curing section symbolized by three pictograms 88, 90 and 92. If this is referred to as a distance, this does not necessarily mean that the threshold actually covers a distance associated with curing by means of a conveyor or the like.
• the thresholds for curing may also simply be stored in a curing chamber or the like for a curing time period. However, since the hardening generally takes a significantly longer period of time than the filling of concrete in the filling station 80, covering and turning as well as partial demoulding, the hardening is represented in FIG. 9 by a plurality of pictograms (pictograms 88, 90 and 92) ,
• the sleepers After hardening, the sleepers are completely released in a second demoulding station symbolized by the icon 94 by removing the mold wall parts 26 from the sleepers. The mold wall parts 26 are then returned via a return path 96 to the filling station 80 in order to be used again together with a residual shape 23 returned via the return path 86 for the production of a threshold 10.
• the sleepers 10 leave the second demoulding station 94 completely removed from the mold and are stored or / and further processed for further use.
• the relative positions of the mounting elements can be corrected after demolding or partial demolding of the not yet fully hardened threshold.
• This correction can take place, for example, in a position correction station, which could be arranged between the first demoulding station symbolized by the pictogram 84 and the curing section represented by the pictograms 88, 90 and 92.
• the position correction can be carried out in such a way that only the relative positioning of the mounting elements assigned to a first rail of the track on the one hand and the mounting elements assigned to a second rail of the track on the other hand is corrected, but there is no position correction of the relative position of the mounting elements assigned to one of the two rails.
• the molded wall parts 26 remaining on the not yet fully cured threshold 10, which may have positioning pins 1 00 for this purpose, on which the molded wall parts 26 can be brought into engagement with a position correction gauge 1 02. Since the mold wall parts 26 hold the respective support elements assigned to the left and right rails in a predetermined relative position to one another and in the current position on the threshold, the support elements jointly assigned to a rail can be arranged together with the respective mold wall part in their relative position with respect to that of the other rail associated holder elements are corrected and held in a respectively set relative position.
• the position correction gauge 102 comprises tubular sleeves 1 04, which are placed on the threshold by means of the pins 1 00 by lowering the position correction gauge 1 02.
• the pin 100 or / and the tubular sleeves 104 can have inclined engagement surfaces against the approach direction of the position correction gauge 102 to the threshold 10, so that in the course of the Lowering the position correction gauge to the threshold causes a gradual correction of the position of the mold wall parts 26 and thus the position of the holding elements assigned to the left rail on the one hand and the holding elements assigned to the right rail on the other hand.
• any gaps or cavities in the concrete that may arise due to the position correction, in particular between the concrete and the anchoring feet, i.e.
• a vibrator arrangement 106 is integrated in the position correction gauge, which sets the position correction gauge 1 02 including the tube sleeves 104 in vibrations, which affect the pins 100 on the mold wall parts 26 and thus on the mounting elements 8 and their Feet 1 6 transfers embedding concrete.
• the important dimension a can be set with high reliability and accuracy and as long as the
• Position correction gauge 102 is engaged with the mold wall parts 26 are held. In addition to correcting dimension a, others can also be corrected
• Degrees of freedom of the mounting elements are set or held, for example a height of the mounting elements or / and an orientation of the mounting elements in the transverse direction orthogonal to the rail course or / and an alignment of the mounting elements in this cross direction.
• two pegs 100 are provided on each mold wall part 26 in the transverse direction at a distance from one another.
• these pins 1 00 are aligned in the transverse direction, so that with the mediation of the mold wall parts 26 a corresponding alignment of the mounting elements 8 and accordingly Alignment of the support elements in the transverse direction is set and held.
• the threshold is at least partially removed at an early point in time or even immediately after the threshold shape has been filled and possibly shaken, it is very expedient to use very low-water concrete without great suppleness, which under certain circumstances can cause a comparatively strong shaking of the Threshold shape required when pouring concrete.
• Such concrete is of very high quality and suffers only a slight shrinkage as it hardens, which is advantageous in terms of maintaining the desired dimensions a, b and c.
• the invention relates to a method and a device for producing concrete sleepers.
• a positioning or / and holding force is applied to a part of at least one holding element to be embedded in the concrete sleeper through a respective opening of a mold wall of a sleeper mold.
• the threshold is at least partially removed from the mold before it has completely hardened and that at least two rail mounting elements are then corrected to a relative desired position before the concrete has completely hardened.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Ceramic Engineering (AREA)
• Mechanical Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Structural Engineering (AREA)
• Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
• Moulds, Cores, Or Mandrels (AREA)
• Railway Tracks (AREA)
• Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
• On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
• Machines For Laying And Maintaining Railways (AREA)

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• 1999
  • 1999-06-23 DE DE19928785A patent/DE19928785A1/de not_active Ceased
• 2000
  • 2000-06-21 DE DE50003458T patent/DE50003458D1/de not_active Expired - Lifetime
  • 2000-06-21 WO PCT/EP2000/005767 patent/WO2001000929A1/fr active IP Right Grant
  • 2000-06-21 AT AT00942116T patent/ATE248252T1/de not_active IP Right Cessation
  • 2000-06-21 EP EP00942116A patent/EP1187952B1/fr not_active Expired - Lifetime
  • 2000-06-21 DE DE50013204T patent/DE50013204D1/de not_active Expired - Lifetime
  • 2000-06-21 AT AT03002748T patent/ATE333535T1/de not_active IP Right Cessation
  • 2000-06-21 AU AU56848/00A patent/AU5684800A/en not_active Abandoned
  • 2000-06-21 EP EP03002748A patent/EP1308559B1/fr not_active Expired - Lifetime

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