EP1681149A2 - Usine de fabrication de récipients en forme de pot en béton - Google Patents

Usine de fabrication de récipients en forme de pot en béton Download PDF

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Publication number
EP1681149A2
EP1681149A2 EP06000068A EP06000068A EP1681149A2 EP 1681149 A2 EP1681149 A2 EP 1681149A2 EP 06000068 A EP06000068 A EP 06000068A EP 06000068 A EP06000068 A EP 06000068A EP 1681149 A2 EP1681149 A2 EP 1681149A2
Authority
EP
European Patent Office
Prior art keywords
mold
shell
frame
mold frame
plant according
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.)
Withdrawn
Application number
EP06000068A
Other languages
German (de)
English (en)
Other versions
EP1681149A3 (fr
Inventor
Klaus Müller
Peter Philipp
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.)
BFS Betonfertigteilesysteme GmbH
Original Assignee
BFS Betonfertigteilesysteme GmbH
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 BFS Betonfertigteilesysteme GmbH filed Critical BFS Betonfertigteilesysteme GmbH
Publication of EP1681149A2 publication Critical patent/EP1681149A2/fr
Publication of EP1681149A3 publication Critical patent/EP1681149A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • B28B7/08—Moulds provided with means for tilting or inverting
    • 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
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/009—Changing the forming elements, e.g. exchanging moulds, dies
    • 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
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/168—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes for holders or similar hollow articles, e.g. vaults, sewer pits

Definitions

  • the present invention relates to a plant for the production of pot-like concrete parts, in particular shaft floor pieces. It comprises a forming device which can be turned between a filling position and a storage position and has an outer mold jacket and an inner mold core for forming a mold cavity which can be filled with concrete between the mold jacket and the mold core. In the filling position, the upper side of the mold cavity filled with concrete can be covered by a subfloor that can be braced with the molding device. Furthermore, the shaping device can be coupled with a turning device for turning the shaping device out of its filling position into its storage position.
  • Manhole bottoms are the wastewater technology as the bottom part of a shaft and are usually equipped with recesses for at least one inlet and a spout for connecting pipes for the water supply. So that the wastewater can flow through the shaft bottom piece with the most favorable flow possible, a channel corresponding to the outlets must be installed in the shaft bottom piece.
  • essentially two manufacturing processes have been developed, which are applied depending on the height of the manhole bottom and the size of the apertures, namely the production in the turning process and the production in head position.
  • the present invention relates to a turn-table plant.
  • the concrete is filled into a mold which is in the head position, ie in the position opposite the position of use of the manhole bottom piece, and compacted there. Then the mold is covered with an underbody and clamped. Subsequently, the mold is turned by 180 ° in the position of use of the manhole bottom piece.
  • manhole bottom piece is disengaged by an upward movement of the mold and transported to a storage location for curing.
  • the mold shell and the mandrel Before turning the individual parts of the molding device, in particular the mold shell and the mandrel, must be fixed to each other. In the aforementioned conventional systems, this is done by manually operated clamping elements, each attacking the mold shell and underbody, or on the mold shell and a correspondingly wide-extending bottom flange of the mold core or connected to the mold core bottom plate of the mold. After fixing the parts of the molding device to each other, the turning of the molding device including mold shell, mold core and subfloor by means of an acting on the mold shell turning bar, for example, the embodiment of the mold device from two opposite sides embracing frame-like crane structure.
  • DE 199 12 829 B4 discloses a further system which operates according to the reversing method, in which the mold cavity is formed from a mold core standing on a base plate and a mold jacket.
  • the mold jacket is clamped when filling with concrete by motor-operated clamping devices with the base plate.
  • the base plate is firmly connected to the mold core and stands on a vibrating table. After filling the mold with concrete and compacting the concrete, an underbody is placed.
  • this system includes the turning device a plurality of clamping elements, which serve to clamp the mold shell with the lower floor and the mold shell with the base plate of the mold core.
  • the turning device engages with these clamping members at the said connection points of the molding device and thus holds these together their individual parts when turning as a unit.
  • a working after the reversing system is known in which the mold cavity is formed from a mold core with wide-extending bottom flange and a clampable with the bottom flange mold jacket.
  • On the mold jacket is hinged a common lifting and locking device for clamping the mold shell with the mold core during filling and displacement of the mandrel relative to the mold shell during removal of the molding arranged.
  • both the turning device and a lifting device for removing the shaping device from the molded article engage directly on the forming jacket.
  • Object of the present invention is to develop a generic system such that it allows optimum manufacturing capabilities and in particular a flexible use of the system for producing different manhole shapes with minimal design effort.
  • a plant for producing pot-like concrete parts comprising a reversible between a filling position and a storage position forming device having an outer mold shell and an inner mold core to form a concrete fillable mold cavity between the mold shell and the Formkem, wherein in the filling position, the top of the filled with concrete mold cavity by a with the molding device can be covered and the forming device can be coupled with a turning device for turning the molding device from its filling position into its storage position.
  • the molding device comprises a mold frame that can be connected to the mold core, at least in the filling position, on which the turning device engages.
  • the filling position defines a position of the former in which the formed article is in the head position, i. in relation to the position of use of the manhole bottom piece reverse position is located.
  • the storage position is in contrast the position in which the forming device is turned by the turning device by 180 ° in the position of use of the manhole bottom piece, wherein after turning the blank on the mounted underbody (bottom pallet) rests.
  • the mold frame forms a substantially one-piece or consisting of a plurality of firmly interconnected parts of the basic frame, which forms the framework of the molding device, so to speak. Accordingly, all further elements of the shaping device, in particular those which serve for shaping, are accommodated in or attached to the mold frame. All forces occurring during the manufacturing process are introduced into the mold frame.
  • a very particular advantage of the solution according to the invention results from the fact that the system can work with only a single predetermined mold frame, in which mold elements of different types can be added or attached.
  • the system can therefore be flexibly used for concrete parts of various shapes and can easily be converted to produce different concrete parts. Neither the control processes nor the corresponding force introduction or actuators need to be re-equipped, as long as the same type of mold frame is used.
  • the mold jacket is receivable in the mold frame, wherein it is preferably inserted into the mold frame and / or pulled out of this, it is easily possible to produce concrete parts with different functionalityen once used. This makes it possible to quickly retrofit the system during an ongoing production cycle and to use it for the production of concrete parts of various shapes.
  • a mold jacket is inserted in the filling position in the mold frame from above or pulled upwards.
  • a mold frame makes it readily possible to clamp the subfloor (for example a floor pallet) to be placed on the mold cavity after filling with concrete and compaction directly on the mold frame, with suitable design of this clamp, e.g. by acting on the underbody clamping lever of a clamping element also engages the upper flange of the mold shell, thereby simultaneously the mold shell are secured in position relative to the mold frame, so that a separate attachment of the mold shell on the mold frame is not absolutely necessary or by a correspondingly simple structure and quickly releasable construction can be made. This also contributes to a significantly improved flexibility.
  • the subfloor for example a floor pallet
  • first clamping device For attachment of the subfloor to the molding device is preferably used at least a first clamping device which engages on the one hand on the underbody and on the other hand on the mold frame and / or the mold shell.
  • first clamping device acts on the mold frame has the advantage that, during clamping of the underbody to the mold frame, fixation of the mold jacket on the mold frame can take place at the same time. Nevertheless, it may well be desirable to additionally or alternatively clamp the subfloor to the mold jacket.
  • the mold shell should be easily replaceable, but the mold frame is usually used again and again, it is also advantageous if the motor-operated actuators of the first clamping device are mounted on the mold frame and interact with corresponding engagement members on the subfloor.
  • the installation can comprise a corresponding lifting device (eg a lifting crane with a U-shaped frame which spans the forming device) for removing the forming device from the molded article in the delivery position, wherein preferably the lifting device also engages the forming frame. Since all other mold components can be attached to the mold frame, a single point of application of the lifting device on the mold frame is therefore sufficient to pull off the entire mold device. The point of application can even be identical to the point of application of the turning device (the bearing points defining the pivot axis), for example if a corresponding crane cross-piece is used which acts on the pivot bearing points on the molding device.
  • a corresponding lifting device eg a lifting crane with a U-shaped frame which spans the forming device
  • each mold component for example mold core and mold jacket
  • the system has at least a second clamping device for clamping the mold shell with respect to the mold core in a position of the mold shell in which it defines the mold cavity during filling, (hereinafter also fully inserted position or receiving position of the mold shell called).
  • a second clamping device for clamping the mold shell with respect to the mold core in a position of the mold shell in which it defines the mold cavity during filling, (hereinafter also fully inserted position or receiving position of the mold shell called).
  • a suitably suitable arrangement of the mold components to each other for example, the adjoining edges of mold jacket and bottom plate or bottom flange of the core while supporting the mold shell through the mold frame already achieved sufficient fixation of the mold shell for fixing the mold cavity when filling the mold cavity with concrete be without the coat is attached to the mold frame in any way.
  • the attachment of the mold core to the mold frame can be designed such that the mold core is connected to the mold frame in any position of the mold device (filling position, storage position), wherein it is even conceivable that the mold frame is integrally formed at least with a base part of the core, so far not too frequent change of the mold core or its Sockeiteils is required.
  • a very particularly favorable application of the system results if, in addition, a locking device is provided, by means of which the mold jacket can be locked on the mold frame, if - after releasing the second clamping device - from a position of the mold shell, in which he defines the mold cavity during filling , (fully inserted position or receiving position), a displacement of the mold frame is effected relative to the mold shell by a predetermined distance.
  • This locking device is then effective when, after transferring the filled molding device to its storage position (ie after turning by 180 °) and, if necessary, a certain curing of the molding, the molding device is removed from the molding.
  • the locking device may comprise, for example, a projection element (for example a suitably shaped projection or a bolt or the like) associated with the one element of mold jacket and mold frame which, when displaced by the predetermined distance, forms a corresponding stop element formed on the other element of mold jacket and mold frame (For example, a correspondingly shaped projection or flange or a recess) engages.
  • a projection element for example a suitably shaped projection or a bolt or the like
  • a corresponding stop element formed on the other element of mold jacket and mold frame For example, it is possible with only little design effort to provide an inwardly projecting pin on the mold frame so that the mold jacket can be fully inserted into its defining the mold cavity during filling position (receiving position), but in a subsequent backward movement of the mold shell relative to the mold frame a stop on the mold shell comes into contact with the bolt of the mold frame.
  • the mold jacket has an outwardly projecting bottom flange with a recess which is guided over the bolt during insertion of the mold shell into the mold frame. Twisting the mold jacket after reaching its fully inserted position a little, it is ensured that the mold jacket can not be pulled out again without coming into abutment with the bolt.
  • the bolt is arranged on the mold frame, there is also the advantage that a corresponding extension or retraction of the bolt from the outside is very easy can be accomplished, for example, when the mold jacket is replaced.
  • a damping device which exerts a relative movement damping force in a displacement of the mold shell relative to the mold frame back into its position defining the mold cavity during filling.
  • the mold shell which moves back into its receiving position due to its weight after the peeling and turning back the molding device in its filling position, then does not hit at high speed, but slides back gently. This avoids unnecessary stress on the mold frame and also largely suppresses otherwise unavoidable loud impact.
  • a spring acting between the mold frame and the mold jacket is sufficient to slow down their relative movement to one another. Damping of this relative movement can be achieved even better if the damping device is designed as a fluid shock absorber, which has, for example, a lifting element coupled to the mold jacket, which dips into a container filled with a suitable fluid (for example hydraulic fluid), which is located on the mold frame is arranged. It goes without saying that a reverse arrangement is also conceivable.
  • the lifting element is expediently prestressed, for example by a suitable spring element (for example a helical spring arranged concentrically around the lifting element), in its extended position in which it only minimally immerses itself in the fluid.
  • a suitable spring element for example a helical spring arranged concentrically around the lifting element
  • the lifting element is actively acted upon by an actuator with force and between its extended position and its retracted position is movable.
  • the mold jacket can be formed integrally as well as in several parts be formed, in the latter case, each part on the mold frame can be locked and / or possibly be clamped to the mold frame. If each part of the mold shell (for example, individual peripheral sections of the mold shell) can be locked or clamped individually on the mold frame, it is understood that these parts can be replaced individually. But structurally simpler it is also possible that only one of the parts on the mold frame can be locked or clamped, with a backup of the other mold components then by a suitable clamping or wedging of the moldings (for example, by correspondingly form-fitting contact surfaces) to each other.
  • the first and / or second clamping device is favorably designed as a quick-release device, so that a quick clamping and releasing of the mold components is possible. It is advantageous if the quick release device is motor-actuated, ie in particular fluidly, pneumatically or by electric motor actuated by an appropriately operable force device with retractable in extension position / retractable in shortening position actuator, which can be indirectly or directly brought into clamping engagement with a clamping lug of the respective associated element is.
  • the power device with actuator is in this case preferably attached to the mold frame.
  • the mold core preferably comprises a vibrating device, by means of which the concrete filled into the mold cavity is compacted.
  • the vibrating device can be designed, for example, as an eccentric vibrator integrated in the mold core. It is then turned together with the molding device and removed from the molding. Also conceivable is an alternative arrangement in which the mold frame stands on a vibrating table, which is decoupled from the mold frame before turning the molding device.
  • the mandrel may be integrally formed in the simplest case, but it will generally be more favorable if the mandrel is assembled from a plurality of core elements.
  • the core different shape elements for the formation of various inner formations or gutter structures, such as radial openings of different inner diameter to form different channels or the like form.
  • An attachment of the individual core components to each other can also be done with the aid of quick-release devices, as mentioned above, for example by a Gerinnekernelement can be fastened by means of a quick-release device to a base core element.
  • the base core element can in turn be firmly connected to the mold frame, as long as frequent replacement of the base core element does not appear necessary.
  • a lifting device is provided, through which the molding device is movable in its filling position and / or in its storage position in the vertical direction.
  • the mold can be lowered for filling in the pit, are raised after placing the subsoil first, then in their Filing be turned and transported to the storage area.
  • this lifting device may also be formed identically to the previously mentioned lifting device for removing the molding device from the molding, for example as a crane crossmember.
  • the mold shell is in its position in which it defines the mold cavity during filling, (also called receiving position) biased in the mold frame.
  • the receiving position here denotes that position of the mold shell in which it is completely inserted into the mold frame.
  • the bias in this position is such that in the receiving position, a force is exerted on the mold shell, which seeks to move it out of the receiving position again.
  • an additional locking or clamping is necessary, which can be achieved for example by the first and / or second clamping device.
  • This variant offers (especially in the presence of a second clamping device) the advantage that a change of the mold jacket is very easy and fast, since after release of the second clamping device, the jacket already jumps out of its receiving position.
  • the second clamping device of the mold frame with the mold core against the molding and the mold shell is slightly raised so that air can flow into the cavity formed. As a result, the removal of the molding is facilitated.
  • the bias may be effected by suitable biasing elements (eg, springs).
  • biasing elements eg, springs
  • a damping device is provided which is biased by a spring element such that they are normally in is extended state, this spring element and the bias of the mold shell can be generated in its receiving position.
  • the invention also relates to a molding device per se, which can be used in a plant operating according to the turnaround method for producing pot-like concrete parts, in particular manhole bottoms.
  • the molding device is designed according to the preceding description.
  • Fig. 1 shows a perspective view of obliquely from below a forming device 10 for a plant for the production of manhole bottom pieces according to the present invention.
  • the molding device 10 defines a mold cavity, which is bounded on its radially outer side by a mold shell 12 and its inner side by a mold core 14.
  • the mandrel 14 is mounted on the inner base ring 16 of a mold frame 20.
  • the inner base ring 16 is formed on its outer side stem-shaped with six circumferentially at the same distance consecutive radially outwardly facing projections 18.
  • an outer base ring 22 of the mold frame 20 is attached.
  • the outer shell construction of the mold frame 20 is constructed.
  • the outer shell construction of the Förmrahmens 20 comprises on the one four in the longitudinal direction of the shell of the molding device 10 extending support 24 (two of which can be seen in Fig. 1), on each of which a lifting cylinder 28 and a clamping member 30 formed first clamping device is mounted and in each case one of a lifting cylinder 44 and a clamping element 46 formed second clamping device is mounted.
  • the jacket construction of the mold frame comprises two diametrically opposite attachment structures 32, each with an opening 34 for forming a pivot bearing for a crane crossmember. At the opening 34 engages a turning bar, not shown, so that the connecting line of the centers of both openings 34 forms a pivot axis.
  • each lifting cylinder 44 of the second tensioning device On the outer base ring 22 of the mold frame 20 four circumferentially equally spaced brackets 42 are mounted for each lifting cylinder 44 of the second tensioning device.
  • the lifting cylinder 44 actuates the tensioning lever 46 in order to fix the molding shell 12 to the form frame 20.
  • Fig. 2 shows the molding device 10 shown in Fig. 1 from the perspective obliquely from above, in addition, a patch on the cover flange 36 of the mold frame 20 bottom pallet 48 can be seen.
  • reference numerals which are identical to reference numerals shown in FIG. 1, correspond to the same parts of the molding device 10. To avoid repetition, reference is made in each case to the description of these parts with reference to FIG.
  • the concrete cavity to be filled with the molding device 10 is formed by the outer surface of the multi-part mold core 14, the inner surface of the mold shell 12, the inner surface 50 of the bottom pallet 48 and one in the filling position shown in FIG the lower edge of the mold cavity bounding, step-shaped annular surface 52 for forming an upper sleeve of the finished manhole bottom piece.
  • the mold shell 12 is inserted from above into a circular opening of the cover flange 36 of the mold frame 20, so that a rectangular projecting upper Begrenzungsflansch 56 of the mold shell 12 rests on the top of the upper cover flange 36.
  • a projecting lower boundary flange 54 of the mold shell 12 lies on a damping element 57 of the outer base ring 22 of the mold frame 20.
  • the bottom pallet 48 has a lower flange 58 which rests on the upper flange 56 of the mold shell 12.
  • the clamping lever 30 of the first clamping device presses both the upper flange 56 of the mold shell 12 and the lower flange 58 of the bottom pallet against the cover flange 36 of the mold frame 20th
  • the mold core 14 is formed from several parts which are coupled to one another via corresponding quick-release connections (see also FIGS. 3 and 4).
  • a vibrator 60 is arranged, which is formed in a conventional manner as Exzenterrüttler.
  • a bolt 62 formed on the support 24 of the shell construction of the mold frame 20 can be seen in FIG. 2, which protrudes so far inward in the radial direction that it overlaps with the outwardly projecting radial flanges 54, 56 of the mold shell 12, but not reaches to its inner surface 64.
  • a recess 66 is formed, which allows the mold shell 12 passes the projection 62 when inserted into the mold frame 20.
  • the projection 62 In the fully inserted state of the mold shell 12 (ie, when in the filling position of the mold is defined by the mold cavity in the receiving position of the mold cavity according to the dimensions of the molded article) is the projection 62 still a good distance from the top of the filling position shown in FIG 2 lower flange 54 of the mold shell 12 is removed. However, if after the turning of the molding device 10 in its storage position of the mold frame 20 is withdrawn together with the mold core 14 attached thereto from the molding, without first the mold shell 12 is pulled, the projection 62 comes into abutment with the bottom in Fig. 2 flange 54th the mold shell 12 and then takes this with. On this way, the entire mold is withdrawn.
  • a bayonet-type insert mechanism or closure may be provided, for example, in which the mold jacket 12 is inserted in an orientation in which the projection 62 fits into the recess 66 and after reaching its final position, ie the receiving position, is slightly twisted.
  • Fig. 3 shows a corresponding perspective view as shown in FIG. 2, wherein the molding device 10 is shown in section along the line 3-3 in Fig. 1.
  • the position of the first clamping devices consisting of lifting cylinder 28 and clamping lever 30 in the closed state and the second clamping devices formed from lifting cylinder 44 and clamping cylinder 46 in the closed state.
  • the lifting cylinders 28 are mounted on the carrier 24 of the mold frame 20 and act on a substantially C-shaped clamping lever 30, one end of which is also attached to the carrier 24 of the mold frame 20.
  • the C-shaped lever is articulated by the lifting cylinder 28 at a location midway between its ends so that it rotates about its bearing point on the carrier 24 when the lifting cylinder is extended.
  • the other end of the C-shaped clamping lever 30 then presses both the upper flange 56 of the mold shell 12 in FIG. 3 and the bottom flange 58 of the bottom pallet 48 against the cover flange 36 of the mold frame 20.
  • the lifting cylinder 44 of the second clamping element is connected to a shoulder 42 of the outer base ring 22 of the mold frame 20 is mounted and acts on a clamping lever 46 which braces the mold shell 12 with the mold frame 20 in the extended state of the lifting cylinder 44 shown in FIG.
  • the mold shell 12 each has a clamping element 46 associated with a longitudinally extending radially projecting rib 68 with an opening into which a nose of the clamping lever 46 engages in the closed state.
  • the rib-shaped mounting structure 32 for the point of application of a turning device or a lifting device.
  • an opening 34 is formed on the mounting structure 32, which receives a pivot bearing pin of a crane cross member, not shown.
  • FIG. 3 also shows the multi-part construction of the mold core 14 with eccentric vibrator 60 arranged therein.
  • the mold core 14 has on its upper side a channel element 70 which is connected to its base element by quick-action clamping devices.
  • Fig. 4 shows a sectional view again the cut in Fig. 3 shown surface.
  • the situation corresponds to that of FIG. 3, in which the molding device 10 is in its filling position, the bottom pallet 48 is placed and both all first and all second clamping devices are closed. To avoid unnecessary repetition, reference is made to the description of FIG. 3.
  • Fig. 5 shows the section of FIG. 4 in a situation in which the molding device 10 has been transferred to its storage position, that has been turned over 180 ° relative to the filling position shown in Fig. 4, and now the mold assembly 10 disposed on the bottom Floor pallet 48 is resting.
  • all first clamping devices and all second clamping devices are already open.
  • the mold frame 20 is clamped neither with the bottom pallet 48 nor with the bottom in Fig. 5 flange 56 of the mold shell.
  • the second clamping devices 44, 46 by retracting the lifting cylinder 44 with a corresponding rotation of the clamping lever 46 and the tension of the upper flange 54 of the mold shell 12 in FIG. 5 is solved with the mold frame 20.
  • FIG. 5 also shows a damping device which is formed from a cylinder 74 with a reciprocating piston 72 insertable therein.
  • the reciprocating piston 72 cooperates with the in Fig. 5 upper side of the mold shell 12 formed on the flange 54, wherein the not immersed in the cylinder 74 end of the reciprocating piston 72 rests against the flange 54 to exert a pushing force thereon.
  • a coil spring 76 is arranged, which biases the reciprocating piston 72 such that it is normally, ie without further application of force, in its extended position.
  • the spring 76 counteracts a movement of the mold shell 12 in its receiving position in the mold frame 20.
  • the cylinder 74 contains a suitable damping fluid (eg, hydraulic fluid) which damps the vibration of the spring 76 so that movement of the mold shell 12 relative to the mold frame 20 is absorbed by the damper and a high impact is avoided.
  • the spring 76 Since the spring 76 is disposed between the upper flange 54 of the mold shell 12 and the outer mold ring 22 of the mold frame 20 in FIG. 5, the closer the flange 54 of the mold shell 12 and the outer base ring 22 are, the more taut it is. the further the mold jacket 12 is inserted into the mold frame 20. So it is maximum curious when the mold shell 12 is in its receiving position in the mold frame 20.
  • the tensioning levers 46, 30 are released, the spring 76 causes the shaping frame 20 to move axially relative to the molding shell 12 until the bolt 62 comes into abutment with the flange 54.
  • the spring 76 also facilitates the exchange of the mold shell 12, if a different outer shape of the concrete molding is desired.
  • the clamping lever 46 In order to perform such a change - usually in the filling position without an applied bottom pallet - only need the clamping lever 46 (v.30, if closed) are opened so that the mold shell 12 jumps out of its receiving position slightly upwards by the force of the spring 76 and can be easily removed from the mold frame 20.
  • FIG. 6 shows the molding device 10 according to FIGS. 1 to 5 in an elevational view, as seen from the direction from the rear left in FIG. 3 with an arrow.
EP06000068A 2005-01-13 2006-01-03 Usine de fabrication de récipients en forme de pot en béton Withdrawn EP1681149A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510001661 DE102005001661A1 (de) 2005-01-13 2005-01-13 Anlage zur Herstellung napfförmiger Betonteile

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EP1681149A2 true EP1681149A2 (fr) 2006-07-19
EP1681149A3 EP1681149A3 (fr) 2007-10-31

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DE3442518A1 (de) 1984-11-22 1986-05-28 Daimler-Benz Ag, 7000 Stuttgart Elastisch nachgiebiges lenkergelenk, insbesondere fuer achslenker von nutzfahrzeugen
DE3611394C2 (de) 1986-04-04 1994-03-31 Niemeyer Gmbh & Co Kg Soehne Formvorrichtung für Betonformkörper
DE19540454A1 (de) 1995-10-30 1997-05-07 Baumgaertner Maschf Gmbh Verfahren und Anlage zur Herstellung von Schachtbodenstücken
DE19912829B4 (de) 1998-03-20 2004-09-16 SCHLÜSSELBAUER, Johann Anlage zum Herstellen von napfförmigen Betonformkörpern

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US3196513A (en) * 1963-02-11 1965-07-27 Parma Domenico Machine for making precast concrete products
US4560335A (en) * 1983-11-07 1985-12-24 Cordova Elmer R Vault machine
BE1003521A3 (nl) * 1989-10-13 1992-04-14 Olivier Betonfab Geprefabriceerd kelderelement.
DE4342518A1 (de) * 1993-12-13 1995-06-14 Baumgaertner Maschf Gmbh Anlage zur Herstellung von topfförmigen Betonformteilen
DE19826462C1 (de) * 1998-06-13 2000-04-20 Merbeler Ag Handhabungseinrichtung für Formen zur Herstellung von Schachtunterteilen aus Beton

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3442518A1 (de) 1984-11-22 1986-05-28 Daimler-Benz Ag, 7000 Stuttgart Elastisch nachgiebiges lenkergelenk, insbesondere fuer achslenker von nutzfahrzeugen
DE3611394C2 (de) 1986-04-04 1994-03-31 Niemeyer Gmbh & Co Kg Soehne Formvorrichtung für Betonformkörper
DE19540454A1 (de) 1995-10-30 1997-05-07 Baumgaertner Maschf Gmbh Verfahren und Anlage zur Herstellung von Schachtbodenstücken
DE19912829B4 (de) 1998-03-20 2004-09-16 SCHLÜSSELBAUER, Johann Anlage zum Herstellen von napfförmigen Betonformkörpern

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