EP1175983A2 - Method and apparatus for manufactoring of barrel-shaped concrete products, in particular manhole elements - Google Patents

Abstract

The concrete component producing process involves the use of a mold with a core (16) and a jacket (14) between which is a molding cavity (18). At ;east one mold element (20) is fitted to a setting-up device (22) at a preset circumferential and/or axial position. After removal of the item from the mold and before the next filling, the setting-up device is placed under cover with the jacket and/or the core.

Description

The invention relates to a method for producing a cup-shaped Concrete molding, for example a piece of manhole bottom.

In sewers, there are usually access shafts at certain intervals intended. Since the individual sections of the wiring harness for Facilitation of maintenance must always be straight, they serve Access shafts to enable changes in the direction of the sewage pipe. In addition, additional wastewater inlets can be placed in these access shafts lead. The inflows and outflows to these access shafts are in As a rule in the lowest concrete part of the shaft, the cup-shaped part of the shaft bottom, intended.

For these inflows and outflows during the manufacture of the manhole base pieces, which are manufactured as prefabricated parts in concrete factories, corresponding formwork elements, for example recess cores, in the mold cavity provided for the manufacture of the manhole bottom piece be introduced. Because the inlets and outlets or the associated recess cores not only in their circumferential position on the bottom of the manhole, but also in their height position with respect to the vertical axis of the manhole base and finally also in their number of manhole bottom pieces to vary the bottom of the manhole, in practice almost every one Manhole base piece an individual concrete element.

In the state of the art, manhole base pieces are manufactured Usually two methods are used, namely the turning method and the overhead method:

Manhole base pieces in small and low versions are often used in the Turning process manufactured. The molding device is constructed so that the shape changes during the filling and compacting of the concrete Upside down position, i.e. in a position opposite the installation in the shaft about a horizontal axis rotated by 180 °. After compacting of the concrete by vibrating and pressing then the shape together with the just manufactured manhole base piece turned into the installation position, and that Then remove the bottom of the manhole from the mold. Such Manufacturing method is described for example in DE 43 42 518 A1.

Manhole base pieces in larger and higher versions, however, are usually manufactured according to the overhead process. With this The mold is not only filled with concrete in the overhead position. Rather, the freshly made manhole bottom piece is also upside down unlocked and remains until after the Concrete in this overhead position. The overhead method has the advantage of one more precise formation of the socket joint for the subsequent manhole ring. With regard to the overhead method, reference is made to EP 0 454 098 A1 directed.

Both in the turning process and in the overhead process are the recess cores after removing the formwork from a previous one manufactured manhole bottom piece, i.e. one in the previous cycle manufactured piece of manhole bottom, before filling the concrete for the next manhole bottom piece usually by an operator inserted into the mold cavity by hand. Although this operator can the required recess cores already from one for this provided modular system and near the Have placed the molding device. The adjustment and attachment of the Cut-out cores in the desired circumferential and height position in the However, mold cavities take considerable time. This increases the time required to manufacture a manhole bottom piece and lowers thus the number that can be produced per day with this molding device Shaft bottom pieces.

As for the manufacture of manhole base pieces both in the turning process as well as in the overhead process preferably used automatic machines the working cycle of these automatic manufacturing machines must be Demould the previous section of the manhole and before filling of the concrete for the next manhole base section, the automatic process interrupted to the recess cores in the mold cavity to be able to contribute. This is necessary because the time the Operator for inserting the recess cores into the mold cavity required, significantly from the bottom of the manhole to the bottom of the manhole can vary. Then the operator must automatically Start the production process again.

It is from the production of ring-shaped concrete parts, such as manhole rings known, insert elements, for example reinforcement rings or crampons, i.e. So elements that, in contrast to the recess cores in the finished Concrete molding remain and always in the same place in the Mold cavity must be introduced by means of an insertion aid in the Insert mold cavity (see DE 35 07 270 C2).

In contrast, the object of the present invention is a method for producing a pot-shaped concrete part, for example one Manhole bottom piece, to indicate which allows the manufacturing of a manhole base piece to reduce the time required and thus the time of number of manhole base pieces of the molding device per unit of time to increase.

This object is achieved by a method for Manufacture of a pot-shaped concrete part, for example a manhole base piece, in a mold with a mold axis, the mold a Mold core, a mold jacket and, if desired, a lower sleeve which enclose a mold cavity between them, wherein at least one formwork element, for example at least one Cut-out core during the ongoing production of a previous one Concrete molding on a set-up device on one - related to one Form axis essentially parallel setup axis - on one predetermined circumferential and / or axial position is arranged, and the set-up device after removing the formwork from the previous one Concrete molded part with the form jacket and / or the form core in cover is brought, and the at least one formwork element in this Cover position by means of at least one transfer device to the Mold jacket or / and the mold core is passed.

According to the invention, the operator can use the at least one formwork element, i.e. for example the at least one recess core, assemble from a modular system and on the for each Formwork element predetermined circumferential and / or axial position on the Attach the set-up device while at the same time the previous molding is concreted, i.e. the concrete is poured into the prepared mold cavity and compacted there by vibrating and pressing and then that the molded concrete part thus removed and removed for hardening becomes. This allows two relatively time-consuming work phases in the Manufacture of the concrete part to be connected in parallel, which at the Processes of the prior art processed in series or in succession had to be, namely filling and compacting the Concrete with subsequent shuttering of the concrete part and the other the arrangement of the formwork elements in the desired Circumferential or / and height position. After stripping the previous one Concrete molding can be prepared according to the invention Setting up the formwork elements arranged on it automatically hand over the mold jacket and / or the mold core. This is due to the Possibility to automate this step relatively little time required. Overall, therefore, by parallelizing two time-consuming work phases can be saved considerably in cycle time, so that with the molding device more concrete moldings are produced per unit of time can be.

Since the filling of the concrete in the mold cavity, its compression and the subsequent demoulding of the finished concrete part usually takes more time than equipping the set-up device the at least one formwork element, the operation of the molding system normally run fully automatically. Only if it is problems arise when equipping the set-up device the molding machine should be stopped by the operator and to be started again after the problems have been resolved.

The formwork elements can in principle on the set-up device any circumferential and / or axial position essentially continuously can be slidably arranged. In practice, however, it is sufficient if for the arrangement of the shell elements is provided in a grid, i.e. if these shell elements on the set-up device only on certain circumferential and / or Height positions can be arranged from each other have a predetermined grid spacing. In practice it has shown that in concrete parts with circular cross section in Circumferential direction a grid spacing of about 5 gon (360 ° = 400 gon) sufficient. With an inner diameter of the pot-shaped concrete part of about 1 m corresponds to 5 gon a grid spacing of about 4 cm. In the Experience has shown that the height or axial direction becomes a grid spacing from 1 cm to 2 cm to ensure a gradient of 1-2% to be able to realize.

The at least one circuit element can be attached to the set-up device in attached or held in various ways:

According to a structurally particularly simple solution, at least a formwork element or a part connected to it on the Set-up device can be held by means of a plug connection. It can the connector the formwork element or with this connected part on the set-up device with respect to the set-up axis in a radial Secure in the direction and in the circumferential direction.

Alternatively, however, it is also possible for the at least one formwork element or the part connected to this on the set-up device a holding device is held. This alternative is particularly advantageous if the formwork elements on the Bracket unit "hung", i.e. the bracket unit in the Setup operation is located above the formwork elements arranged on it.

The mounting device can, for example, at least one clamping pin comprise, which is preferably hydraulically or pneumatically actuated. However, it is also possible for the mounting device to be a locking device is formed, this locking device preferably comprises at least one locking element, which is biased into a locking position, is spring-loaded, for example. The locking element can then by the interaction of control surfaces of the locking element on the one hand and the formwork element or the part connected to it on the other hand or / and can be disengaged from this locking position by means of a power device, the power device, for example, a ring provided with wedge surfaces rotated about an axis substantially parallel to the set-up axis, which acts on a plurality of locking elements.

The mounting unit can preferably be one over the entire Include circumference of the concrete molding extending retaining ring. On this retaining ring can the formwork elements in the circumferential direction can be arranged continuously displaceable. However, it is also an alternative possible on this mounting ring in a predetermined circumferential grid Attachment or mounting positions for the formwork elements or the provided with these connected parts.

The height or axial position of the formwork element on the set-up device can be easily adjusted as desired, that the at least one formwork element on a mounting bar is adjustable in height can be attached, for example screwed down. With help this mounting bar, which can be made of sheet steel, for example, the formwork element can then be attached to the mounting unit are or are gripped by the mounting device.

In a further alternative embodiment, the set-up device can be a Include a plurality of bracket arms, their circumferential and / or axial position is essentially adjustable.

Around those usually arranged on the set-up device above the hall Formwork elements in the mold cavity usually arranged under the floor To be able to bring in is in the simplest execution Sequence of a horizontal movement and a vertical one Movement of the formwork elements required.

To realize the horizontal movement of the at least one Formwork element, the set-up device can comprise a carriage that on an underground of the manufacturing site, for example the floor of a Production hall that is movable. This variant is suitable especially for retrofitting existing molds a molding device according to the invention. To move on the underground of the manufacturing site by providing the set-up device Alternatively, having to restrict as little as possible can be provided that the set-up device comprises a carriage, the longitudinal a rail that can be moved from a base of the production site, for example the floor of a production hall, has a distance, for example more than 2.00 m, preferably more than 2.50 m, is.

To cause the at least one formwork element to buckle its engagement with the mold jacket and / or the mold core in the course of The set-up device can prevent vertical movement comprise a support body for supporting the at least one formwork element. This support body can when retracting the set-up device into the molded jacket, be it due to movement of the molded jacket or be it due to a movement of the set-up device, quasi the presence simulate a mandrel. In an analogous manner, the support body when moving the set-up device onto the mandrel, that too Simulate the presence of the shaped jacket. The support body can at the same time the function of the mounting device discussed above take over if on it in the circumferential direction and / or in the height direction a mounting grid for formwork elements is provided.

It should be added at this point that the vertical relative movement of Set-up device on the one hand and mold jacket and / or mold core on the other to bring about their covering position in various ways and Way can be accomplished. For example, the set-up device retracted into the mold cavity formed by the mold core and mold jacket become. This is the type of movement that you will primarily find during production of the molded concrete parts using the turning process, since the Molding devices for carrying out this turning process and mold core are usually not completely separated become. But even if you work overhead, separated from the mold core and mold jacket for demoulding the set-up device can only then be fitted with a mold jacket / mold core Cover is brought when the mold jacket and the mold core to Formation of the mold cavity have already been put together again.

In the manufacture of the pot-shaped concrete parts using the overhead process is there if you have the set-up device with a mold jacket or mold core want to cover while they are separate, further movement variants. For example, the set-up device in the mold shell freed from the mold core are retracted, be it due to a movement of the molded jacket or because of a actual retraction of the set-up device. In an analogous way it is also possible to get the set-up device freed from the molded jacket Open mold core.

In a development of the invention it is proposed that the transfer device comprises a mounting device which, for example, in Form of a clamping device arranged on the mold jacket and / or on the mold core can be executed. Such clamping devices can be realize in a structurally simple manner even in confined spaces.

The clamping device can, for example, be one with a pressure fluid include loadable clamp hose. The pressure fluid chamber this For example, the clamping hose can extend over the entire circumference of the Mold shell or mold core extend so that all to be transferred Formwork elements are captured simultaneously by the clamping device can. Alternatively, however, it is also possible to use a plurality of Circumference of the molded jacket or molded core arranged distributed clamping hoses or one divided into a plurality of pressurized fluid chambers Insert clamping hose.

As an alternative to the clamping hose, the clamping device can also comprise at least one clamping pin.

The clamping hose or the clamping pin can be in a side wall a circumferential groove of the mold jacket or the mold core can be arranged, in which the at least one formwork element or with this connected part, such as the mounting bar, are inserted can. This circumferential groove does not necessarily need to be over to extend the entire circumference of the mold shell or mold core. Rather, it is also possible, particularly in the case of the raster solution, to have one A plurality of vertical grooves arranged distributed in the circumferential direction to provide, the circumferential distribution preferably the desired Corresponds to the circumferential grid.

The holding device can also have at least one on the molded jacket or form core comprising clamping hooks displaceable in the radial direction, which encompasses the associated formwork element or its mounting strip and by means of a movement in the radial direction against the associated one Side wall of the mold core or mold jacket pulls. The clamp hook can encompass the formwork element or its mounting bar on the outside. Alternatively, however, it is also possible for the hook element to have an elongated one Penetration of the shell element or its mounting strip, wherein a longitudinal end of this opening is expanded, so that the hook element can pass through them easily, and that each other longitudinal end is narrowed, so that the hook element after a relative movement of the hook element and through hole engage behind an edge of this narrowed longitudinal end of the through hole and the formwork element or the assembly bar when pulling back in the radial direction against the mold core or the mold jacket can pull.

To facilitate the arrangement of the at least one formwork element on the set-up device by the operator, the set-up device can be rotatable. This does not always have to be the case the entire set-up device can be rotated. Especially with the Formation of the set-up device with a plurality of mounting arms Rather, it is sufficient if these arms can be pivoted. This Rotatability or pivotability can be used for this purpose, for example that the operator's setup is always in position returns to where the next formwork element is to be arranged. The operator so does not need to walk around the setup, what helps to reduce set-up times. To further facilitate the arrangement of the Formwork elements on the set-up device, i.e. for further reduction of the set-up times, a display device can also be provided, which indicates the position at which the next formwork element is to be arranged is.

Finally, a control device can be provided which Manufacturing process including the delivery of at least one Formwork element controls by means of the set-up device, preferably controls fully automatically.

As can be seen from the above description, the Invention also a device for manufacturing a pot-shaped concrete part, especially a piece of manhole bottom. With regard to the Training of this device according to the invention, its training opportunities, as well as the discussion of the advantages that can be achieved with it referred to the above discussion of the method according to the invention.

Fig. 1

eine schematische Ansicht einer Fertigungsanlage zur Durchführung des erfindungsgemäß abgewandelten Überkopf-Verfahrens;

Fig. 2

eine Ansicht ähnlich Fig. 1 zur Erläuterung des erfindungsgemäß abgewandelten Wende-Verfahrens;

Fig. 2a

eine Ansicht ähnlich Fig. 2 zur Erläuterung einer weiteren abgewandelten Verfahrensvariante;

Fig. 3

eine schematische Draufsicht auf ein Schachtbodenstück;

Fig. 4a-4d

Ansichten zur Erläuterung einer als Steckverbindung ausgebildeten Halterungsvorrichtung zwischen Schalungselement und Rüstvorrichtung;

Fig. 5

eine Ansicht ähnlich Fig. 4d zur Erläuterung einer als Klemmverbindung ausgebildeten Halterungsvorrichtung zwischen Schalungselement und Rüstvorrichtung;

Fig. 6a, 6b

Ansichten zur Erläuterung einer als Rastverbindung ausgebildeten Halterungsvorrichtung zwischen Schalungselement und Rüstvorrichtung;

Fig. 7, 8

Ansichten zweier als Klemmverbindung ausgebildeter Halterungsvorrichtungen zwischen Schalungselement und Formmantel;

Fig. 9a-9c

Ansichten zur Erläuterung einer als Riegelverbindung ausgebildeten Halterungsvorrichtung zwischen Schalungselement und Formmantel;

Fig. 10a, 10b

Ansichten zur Erläuterung einer als Klemmverbindung ausgebildeten Halterungsvorrichtung zwischen Schalungselement und Formmantel;

Fig. 11a, 11b

Ansichten einer als Hakenverbindung ausgebildeten Halterungsvorrichtung zwischen Schalungselement und Formmantel; und

Fig. 12

eine schematische Seitenansicht einer mit Schwenkarmen ausgebildeten Rüstvorrichtung.

The invention will be explained in more detail in the following using some exemplary embodiments with reference to the accompanying drawings. It shows:

Fig. 1

is a schematic view of a manufacturing system for performing the overhead method modified according to the invention;

Fig. 2

a view similar to Figure 1 to explain the modified inventive turning method.

Fig. 2a

a view similar to Figure 2 for explaining another modified method variant.

Fig. 3

a schematic plan view of a manhole bottom piece;

Figures 4a-4d

Views for explaining a mounting device designed as a plug connection between formwork element and set-up device;

Fig. 5

a view similar to Figure 4d to explain a clamping device designed as a clamping device between formwork element and set-up device;

6a, 6b

Views for explaining a mounting device designed as a latching connection between formwork element and set-up device;

7, 8

Views of two mounting devices designed as a clamp connection between the formwork element and the molded casing;

Figures 9a-9c

Views for explaining a locking device designed as a bolt connection between the formwork element and molded casing;

10a, 10b

Views for explaining a mounting device designed as a clamp connection between the formwork element and the molded casing;

11a, 11b

Views of a mounting device designed as a hook connection between the formwork element and molded casing; and

Fig. 12

is a schematic side view of a set-up device designed with swivel arms.

In Fig. 1 is a plant according to the invention for the production of molded concrete parts generally designated 10. It serves in particular for Production of pot-shaped concrete parts using the overhead process.

3 is an example of such a pot-shaped concrete molded part Shaft bottom piece 12 shown in plan view. The manhole base piece 12 comprises a pot bottom 12a and one up from it, i.e. from the Out of the drawing plane, protruding pot wall 12b. In the illustrated In the exemplary embodiment, a main channel 12c runs in the pot bottom 12a, into which a side channel 12d opens as an inlet. The main channel 12c stands via an inflow opening 12e with an inlet line, not shown, and via a drain opening 12f with a likewise not shown Drain pipe in connection. The side channel 12d stands in an analogous manner via an inflow opening 12g with another, also not shown Inlet line in connection. The flow directions in the main channel 12c or secondary channel 12d are indicated in FIG. 3 by arrows.

As can be seen in Fig. 3, the main channel 12c extends from its Inlet 12e to its outlet 12f, so that this can also be done via the secondary channel 12d to be able to absorb incoming liquid volumes. Therefore, all point three openings 12e, 12f and 12g have a different diameter. In addition, the main trough 12c takes place in the manhole bottom piece 12 a curved course, depending on the local conditions and requirements of the sewage pipe is predetermined, the part of which Manhole base piece 12 forms. The circumferential position also depends accordingly and the height position of the inlet opening 12g of the secondary channel 12d of the respective local conditions and requirements.

It is therefore easy to see that manhole bottom pieces to the highest degree individual molded concrete parts are what their fully automated manufacturing difficult. To produce the inlet or outlet openings 12e, 12f and 12g must namely in the from the jacket 14, from the lower sleeve 15th (see detailed view) and the mold cavity 18 formed by the mold core 16 (see Fig. 1) recess cores 20 with one of the desired location of the corresponding opening and circumferential position become. So far, this has been done after demoulding an im preceding work cycle of manhole base 12, i.e. after the mold jacket 14 to form the mold cavity 18 again the mandrel 16 lowered into the position shown in dashed lines in FIG. 1 was the time-consuming arrangement of the recess cores 20 in the respectively predetermined circumferential and height position on one Set-up device 22 can be prepared while maintaining the mold cavity 18 by means of a concrete loading device 10a with concrete filled and then by means of a press device 10b and Vibrating device 10c is compressed. After demoulding and the The recess cores can be removed from the manhole base piece 12 thus manufactured 20 then automatically by means of the set-up device 22 in the Mold cavity 18 are introduced, which takes up relatively little time Takes up.

The parallelization of the time-consuming work steps, namely filling and compacting the concrete and stripping the concrete part on the one hand and preparation of the recess cores for the next concrete part including their arrangement at a predetermined circumferential and Height position, on the other hand, leads to considerable savings Cycle time, which significantly increases the productivity of the manufacturing system 10.

For the automatic insertion of the recess cores 20 by means of the set-up device 22 in the mold cavity 18 there are various ways to be discussed below:

In all of these variants, the set-up device 22 is initially shown in horizontal direction in vertical alignment with the shaped jacket 14 or Move mold core 16. In the embodiment according to FIG. 1 happens this by means of a transport carriage 22a, the wheels or rollers 22b of which have such a distance from each other that they are next to the Mold cavity 18 can move past this.

In the embodiment according to FIG. 1, the molded jacket is then used 14 lowered by means of the lifting device 10d until the set-up device 22 is completely accommodated in its interior 14a. In this condition a takeover device 24 is actuated, which the recess cores 20 secures inside the shaped jacket 14. Then the Molded jacket 14 again lifted from the set-up device 22, the Notch cores 20 from a mounting ring 22c of the set-up device 22 be solved. After the set-up device 22 by means of the carriage 22a has been withdrawn again, the shaped jacket 14 to form the Mold cavity 18 lowered onto the mandrel 16.

According to an alternative, the insertion of the set-up device 22 into the Interior 14a of the shell 14 also by a vertical movement of the Setup 22 are accomplished. For this purpose, the carriage 22a for example, be equipped with a lifting device.

As a further alternative, the set-up device 22 can be considered a vertical movement on the mandrel 16, be it before or after lowering the shaped jacket 14 in dashed lines in FIG. 1 position shown. To an advantageous embodiment of the Setup 22 will be discussed below on the occasion of the Turning method are discussed in more detail with reference to FIG. 2.

It should also be added that it is basically possible, even the Execute horizontal movement of the mold jacket 14 or mold core 16 to let. In practice, however, this will primarily be the case Shaped jacket 14 of the overhead molding device 10 shown in FIG. 1 are suitable.

It is also to be added that the recess cores 20 on the mounting ring 22c are arranged by means of mounting strips 32 on which the actual Notch cores 20 attached in a desired height position are. In the further description, however, is not between the recess cores 20 or the mounting strips bearing these become.

For the overhead method according to FIG. 1, it must also be added that it is this can be advantageous on the upper end face 16a of the mandrel 16 formwork panel 20 'to be placed as a lost formwork element remains in the manhole bottom piece, such as from EP 0 454 098 A1 is known. Also for this formwork panel 20 ' A corresponding take-over device 24 'is provided in the molded jacket 14 his.

A main difference of the manufacturing system 110 shown in FIG. 2 of manhole base pieces in the turning process exists compared to the 1 in that the molded jacket 114 and the mandrel 116 are usually continuously connected and therefore the recess cores 120 necessarily into the mold cavity 118 must be lowered. The set-up device 122 carries this through a "hanging" training bill, compared to the "standing" design of the set-up device 22 according to FIG. 1. "hanging" in that the recess cores 120 on the retainer ring 122c of the Setup 122 are suspended, i.e. from this down protrude. Furthermore, the mounting ring 122c on the carriage 122a is the Set-up device 122 suspended, which runs in horizontal rails 122d. The rails 122d are preferably spaced apart from one another from underground U, i.e. a distance of more than 2.00 m, preferably of more than 2.50 m.

After the set-up device 122 in a horizontal movement H in vertical registration with the mold cavity 118, it will lowered into the mold cavity 18 by means of a vertical movement V, and the recess cores 120 from the takeover device 124 in the mold cavity 118 taken over. To enable this vertical movement V is the mounting ring 122c with the carriage 122a over one Telescopic arm 122e connected.

2 also shows a bearing 126 for prepared recess cores 120 and a work table 128, on which the recess cores 120 can be prepared for attachment to the set-up device 122. If an operator has a certain recess core on the Bracket ring 122c in the desired circumferential and height position arranged, it can do so by making an appropriate entry on a Acknowledge control unit 130. The control unit 130 can then Specifications for the one to be placed next on the set-up device 122 Display recess core 120 and the retaining ring 122c twist about a vertical axis so that the operator the correct circumferential position for this next recess core 120 returns.

Did the operator arrange the last one for the manufacture of the next slot bottom piece 12 required recess core 120 the control unit 130 acknowledges before filling and compressing the Concrete in the mold cavity 118 and the demoulding of the previous one Manhole bottom piece is finished; so the work cycle of the manufacturing plant 110 after stripping the manhole base without interruption continue running right away. Otherwise the manufacturing process interrupted and only as a result of the acknowledgment for the last required Cutout core started again.

To reduce the physical work to be done by the operator 2a, a preparation table 123 can be provided for work. The worktop 123a of this preparation table 123 can be operated by means of a Power device 123b, for example a pneumatic and / or hydraulic actuatable cylinder-piston unit, between one essentially horizontal preparatory position and a substantially vertical mounting position be pivoted. On the worktop 123a Operator the individual components of a recess core 120 assemble and, if desired, also on a mounting strip 132 Fasten. Then the operator pivots, for example by means of the power device 123b, the recess core 120 together with the worktop 123a in the mounting position, mounting plate 132 in the intended Bracket of the set-up device 122 'slides. The set-up device In the embodiment shown in FIG. 2a, 122 'is similar to that Embodiment according to FIG. 2 moving device movable along a crane rail with a mounting ring 122c 'for "standing" arrangement of the Recess cores 122 similar to the embodiment shown in FIG. 1.

As is understood, the production system 110 also corresponds to the Plant parts 10a, 10b and 10c according to FIG. 1 via a concrete loading device, has a pressing device and a vibrating device, it also goes without saying that the production system 10 according to FIG. 1 with a control unit corresponding to control unit 130 according to FIG. 2 can be equipped and that the mounting ring 22c on the Carriage 22a under the control of this control unit by one vertical Axis can be arranged rotatably.

In the following, various design options will now be given as examples for mounting devices are explained as they are in Bracket ring 22c or 122c of the set-up device 22 or 122 or in the Takeover device 24 and 124 can be used. there at this point it should be noted that each of these Brackets, even if only using the example the mounting ring of the set-up device or only using the example of Transfer device has been described in an analogous manner the other device can be used. The same goes for also for attaching the transfer device to the molded jacket or on Mold core.

4a shows a first embodiment variant of a mounting device 40 shown, such as on the mounting ring 22c of the set-up device 22 according to FIG. 1 can be used. Namely, the bracket device 40 designed as a plug connection. This is in the lower end of the mounting bar 32 carrying the recess core 20 a Longitudinal groove 32a is introduced into which a plug finger 42a of a plug head 42 can intervene. By the webs 32b laterally delimiting the groove 32a, the interact with side surfaces of the insertion finger 42a is a shift the mounting bar 32 prevented in the circumferential direction. A movement the mounting bar 32 is radially outwards by the mounting finger 42a prevented. Furthermore, the plug head 42 has a support element 42b which also makes a movement radially inwards impossible. This backup the mounting bar 32 both in the radial direction and in the circumferential direction could alternatively also by forming the groove 32a and Insert finger 42a in the form of a dovetail guide become.

The plug head 42 can on the peripheral edge of a circular disk-shaped mounting plate 22c '(see Fig. 4a), at the outer end of a mounting spoke 22b "(see FIG. 4c) or also on the peripheral edge of a mounting ring 22c (see Fig. 4d) may be arranged.

Analog plug heads 142 can also be used in the hanging arrangement of the Recess cores 120 or their mounting strips 132 on the mounting ring 122c of the set-up device 122 can be used, such as this is shown in Fig. 5. However, in this case care must be taken that the mounting bar 132 is not out of engagement with the Plug head 142 can reach. For this purpose, the holder device 140 5, a clamping pin 144 is provided, which is in a recess 142c of the plug head 142 is guided and, for example, pneumatically or / and be pressed hydraulically against the mounting bar 132 can.

However, the mounting device can also be designed as a locking device 240 be, as shown in Figs. 6a and 6b. For this is in the Recess 242c of the plug head 242 a locking element 246 slidably performed that to the left by means of a coil spring 246a in Fig. 6a is biased. The head 246b of the locking pin has a taper 246c against which the free end of the mounting bar 232 at its Introduce into the plug head 242 and so the locking pin 246 against Preloads the spring 246a in Fig. 6a to the right. Is the Mounting bar 232 fully inserted into the plug head 242, so the Lock pin 246 due to its spring bias in a through hole 232c the mounting bar fall and thus snapped into the mounting bar 232 in the Plug head 242.

To cancel the locking between locking element 246 and mounting bar 232 there is a control ring 246d with a control surface 246e, which cooperates with an end bead 246f of the locking pin 246. Becomes the control ring 246d in the direction indicated by an arrow in FIG. 6e Rotated circumferential direction, the locking pin 246 is due to the Interaction of the control surface 246e with the end bead 246f the bias of the spring 246a withdrawn to the right in Fig. 6a, and releases the mounting bar 232.

In the embodiment according to FIG. 7, the one as a takeover device 24 shows mounting device 340 formed on a molded jacket 14, is this mounting device 340 as a clamping device with a Clamping hose 348 executed, the mounting bar 332 against one Presses ring flange 14b of the molded jacket 14. The pressure hose 348 can be used hydraulically or pneumatically to exert the clamping action be expanded. The pressure hose 348 can do this from a relative dimensionally stable, but still to achieve the clamping effect be made elastically deformable material, for example a relative hard rubber compound.

Another pressure hose 350 is located below the pressure hose 348 arranged, which can also be expanded hydraulically and / or pneumatically. This pressure hose 350 has the function of the circumferential groove 14c of the shaped jacket 14, between the side wall 14d and the ring flange 14b is formed where there is no mounting strip 332 in this annular groove 14c is inserted, against the penetration of concrete into this annular groove 14c Filling the mold cavity 18 to protect with concrete. To do this, the Pressure hose 350 can be expanded to a relatively large extent. It recommends therefore, him from a relatively elastic material, such as one soft rubber compound.

The holder device 440 according to FIG. 8 differs from that 7 mainly by the fact that the there only pressure hose 448 provided both the clamping effect of the Pressure hose 348 as well as the sealing effect of the pressure hose 350 of the embodiment according to FIG. 7 takes over. Moreover, the pressure hose 448 arranged in the region of the ring flange 14b of the shaped jacket 14 and not in the area of its side wall 14d.

In the embodiment shown in FIGS. 9a, 9b and 9c, the Holding device designed as a locking device 540. For this is a sliding ring 552 which can be actuated via a control lug 552a in one Circumferential groove 14e of the shaped jacket 14 added. On the inner circumferential surface of the control ring 552 locking tabs 552b are provided, which in associated locking recesses 532d of the mounting strips 532 introduced can be. By turning the control ring 552 in the in Fig. 9b The assembly bar 532 enters the direction indicated by an arrow Area of a release portion 552c of the control ring 552 in which the cross-sections of control ring 552 and mounting bar 532 in 9b do not overlap, so that the mounting bar 532 can be withdrawn from the mounting device 540. Around To be able to prevent the entry of concrete into the annular groove 14c is one Sealing lip 554 provided.

Although tacit in the above embodiments it has been assumed that this is a continuously variable arrangement of the mounting strips 32 in the circumferential direction enable what, for example a full extension of the groove 14c of the shell 14 in the Circumferential direction, it is usually sufficient in practice if mounting strips 232 in a predetermined grid with one Can arrange grid spacing of 5 gon (= 4.5 °), for example. In this Fall can then instead of a circumferential circumferential groove 14c a plurality of insertion recesses distributed over the circumference of the shaped jacket 14 14c 'can be provided for the mounting strips 32. Further can be used instead of continuous pressure hoses 348, 350, 448 also a plurality of distributed over the circumference of the molded jacket 14 arranged pressure bubbles or a continuous hose with a A plurality of pressure chambers can be provided.

A bracket device 640 in which such a rasterized design is realized is shown in Figs. 10a and 10b. As shown in Fig. 10b sees, a plurality of are distributed in the circumferential direction in the mold jacket 14 arranged recesses 14c 'formed in the mounting rails 632 can be introduced. Each insertion recess 14c 'is a clamping element 644 assigned that hydraulically and / or pneumatically against the Assembly bar 632 can be pressed. For sealing the recess 14c ', a sealing pin 656 is also provided which Plug recess 14c 'under the influence of a spring preload 656a normally closed, but when inserting the assembly bar 632 from this can be pushed back when the mounting bar 632 against a control bevel 656b of the sealing pin 656a starts.

11a and 11b is the mounting device 740 designed as a clamp hook connection. For this is in the Mounting bar 732 an elongated hole 732e with an enlarged end 732f and a narrowed end 732g is provided. It is also on the peripheral wall 14b of the shaped jacket 14 is a clamping hook element which is adjustable in the radial direction R. Arranged 760, which is an opening 14e of the shell side wall 14d enforced. The in the interior 14a of the shell 14 protruding part of the clamping hook element 760 includes one Pin 760a, whose outer diameter is dimensioned slightly smaller than the width of the narrowed portion 732g of the elongated hole 732e and one End plate 760b, whose outer diameter is slightly smaller is as the width of the enlarged portion 732f of the elongated hole 732e, however, significantly larger than the width of the narrowed portion 732g.

If the 732 assembly bar is inserted, the extended one Section 732f of the elongated hole 732e in radial alignment with the receptacle 14e for the clamping hook element 760, this becomes the clamping hook element 760 by means of a preferably pneumatically or hydraulically operated Power device, through the opening 14e and the elongated hole 732e in Fig. 11b shifted to the right until a stop 760c on the outer peripheral surface of the shaped jacket 14 is present. If the mounting bar 732 in Fig. 11b shifted further upward, the narrowed section 732g arrives of the elongated hole 732b in engagement with the pin 760a of the clamping hook element 760. Has the mounting bar 732 in its final mounting position reached, the clamping hook element 760 is again radially outwards, i.e. retracted to the left in FIG. 11b, so that the mounting strip 732 by means of the end plate 760b against the side wall 14d of the molding jacket 14 is pressed. To cancel the clamp holder of the Mounting bar 732 on the molding jacket 14 are those described above Steps performed in reverse order.

The example of FIG. 12 is only intended to show that the set-up device 22 does not necessarily have a circumferential mounting ring corresponding to the retaining ring 22c shown in FIG. 1, but that it is also possible to have a plurality of support arms to be provided independently of one another normally in vertical axis extending setup axis r can be pivoted and if desired also independently in the direction of the setup axis r, i.e. normally in the vertical direction. On the free ends of these bracket arms 22f can be bracket devices for the arrangement of recess cores 20 or their mounting strips 32 may be provided.

3 that the main channel 12c and the Secondary channel 12d and, if desired, the rest of the bottom 12a and if necessary, even part of the inner surface of the side wall 12b of the Can be provided with a lining, to protect the concrete from attack by aggressive wastewater. These linings can for example be made of bricks, tiles, tiles or be made of plastic. These linings can also be used prepared the set-up device and by means of this set-up device in the Mold cavity 18 are introduced.

Claims (35)

Method for manufacturing a pot-shaped concrete molded part (22), for example a manhole base piece, in a mold with a mold axis,
the mold comprising a mold core (16) and a mold jacket (14), which enclose a mold cavity (18) between them,
wherein at least one formwork element (20), for example at least one recess core, during the ongoing production of a previous molded concrete part (12) on a set-up device (22) on a set-up axis - based on a set-up axis running essentially parallel to the form axis - on a predetermined circumferential or / and axial position is arranged, and
wherein the set-up device (22) is brought into congruence with the mold jacket (14) and / or the mold core (16) after the formwork has been removed from the form of the previous concrete molding (12) and before the concrete for the next concrete molding (12) is poured in, and at least a formwork element (20) in this covering position is transferred to the molding jacket (14) and / or the molding core (16) by means of at least one transfer device (24). Method according to claim 1,
characterized in that the at least one formwork element (20) or a part (32) connected to it is held on the set-up device (22) by means of a plug connection (40). Method according to claim 2,
characterized in that the plug connection (40) secures the formwork element (20) or the part (32) connected to it on the set-up device (22) with respect to the set-up axis in the radial direction and in the circumferential direction. Method according to one of claims 1 to 3,
characterized in that the at least one formwork element (120) or a part (132) connected to it is held on the set-up device (122) by means of a holding device. Method according to claim 4,
characterized in that the holding device (140) comprises at least one clamping pin (144) which can preferably be actuated hydraulically or pneumatically. Method according to claim 4 or 5,
characterized in that the holding device (240) is designed as a latching device. Method according to claim 6,
characterized in that the latching device (240) comprises at least one latching element (246) which is biased into a latched position, for example spring-biased. Method according to claim 7,
characterized in that the latching element (246) by interaction of control surfaces (246c, 232c) of the latching element (246) on the one hand and the formwork element or the part (232) connected to it on the other hand and / or by means of a power device (246d) from this latched position is disengageable. A method according to claim 8,
characterized in that the power device rotates a ring (246d) provided with wedge surfaces (246e) about an axis substantially parallel to the set-up axis, which preferably acts on a plurality of latching elements (246). Method according to one of claims 4 to 9,
characterized in that the holding device comprises a holding ring (22c; 122c) extending over the entire circumference of the shaped concrete part (12). Method according to one of claims 1 to 10,
characterized in that the at least one formwork element (20) can be attached in a height-adjustable manner to a mounting strip (32) which can be brought into engagement with the plug connection or the holding device. Method according to one of claims 1 to 11,
characterized in that the set-up device (22) comprises a plurality of mounting arms (22f), the circumferential or / and axial position of which can be adjusted essentially as desired. Method according to one of claims 1 to 12,
characterized in that the set-up device (22) comprises a carriage (22a) which can be moved on a base (U) of the production site, for example the floor of a production hall. Method according to one of claims 1 to 12,
characterized in that the set-up device (122) comprises a carriage (122a) which can be moved along a rail (122d) which is at a distance from an underground (U) of the production site, for example the floor of a production hall, which is more than, for example 2.00 m, preferably more than 2.50 m. Method according to one of claims 1 to 12,
characterized in that the set-up device (22) can be brought into congruence with the molded jacket and / or the molded core by means of a swivel mechanism. Method according to one of claims 1 to 15,
characterized in that the set-up device (22) comprises a support body for supporting the at least one formwork element (20) when it engages with the mold core (16) in the course of the collision with the mold core (16) or with the mold shell (14) in the train retraction into the molded jacket (14). Method according to one of claims 1 to 16,
characterized in that the transfer device (24) comprises a mounting device arranged on the mold jacket (14) and / or on the mold core (16). A method according to claim 17,
characterized in that the holding device (340; 440) comprises at least one clamping hose (348; 448) which can be filled with a pressure fluid. Method according to claim 17 or 18,
characterized in that the mounting device (640) comprises at least one clamping pin (644). Method according to one of claims 17 to 19,
characterized in that the holding device (740) comprises at least one clamping hook (760). Method according to one of claims 17 to 20,
characterized in that the holding device (540) comprises at least one locking element (552) which can be inserted into a locking groove (532d) provided on the formwork element or the part (532) connected to it. 22. The method of claim 21,
characterized in that the locking element (552) comprises a wedge surface (552b) and is arranged such that it can be displaced in the circumferential direction on the molding jacket (14) or molding core, the wedge surface (552b) in a locking position of the locking element (552) into the locking groove (532d) engages and is withdrawn from this locking groove in a release position of the locking element (552) and thus releases the formwork element or the part (532) connected to it. Method according to one of claims 1 to 22,
characterized in that the set-up device (22; 1 22) is rotatable. The method of claim 23
characterized in that the set-up device (22; 122) always turns the operator to the position at which the next formwork element (20; 120) is to be arranged. A method according to claim 23 or 24,
characterized in that the set-up device (22; 122) comprises a display device which displays the position at which the next formwork element (20; 120) is to be arranged. Method according to one of claims 1 to 25,
characterized in that the set-up device (22; 122) is moved into the region of the mold by means of a movement with a movement component (H) running orthogonally to the demoulding direction. Method according to one of claims 1 to 26,
characterized in that the set-up device (22; 122) is moved into the mold cavity (18) formed by the mold core (16) and the mold jacket (14) by means of a movement (V) extending essentially in the direction of the formwork removal. Method according to one of claims 1 to 26,
characterized in that the set-up device (22) is moved onto the mold core (16) which has been freed from the mold jacket (14) by means of a movement (V) which runs essentially in the demoulding direction. Method according to one of claims 1 to 26,
characterized in that the set-up device (22) is moved into the mold jacket (14) freed from the mold core (16) by means of a movement (V) extending essentially in the direction of the formwork removal. Method according to one of claims 1 to 26,
characterized in that the mold jacket (14) freed from the mold core (16) is moved onto the set-up device (22) by means of a movement (V) extending essentially in the direction of the formwork removal. Method according to one of claims 1 to 30,
characterized in that the at least one formwork element (20) is transferred to the mold core or mold shell (14) when the mold shell (14) and mold core (16) are arranged separately from one another. Method according to one of claims 1 to 30,
characterized in that the at least one formwork element (120) is transferred to the mold core (116) and / or the mold shell (114) when the mold shell (114) and mold core (116) together form the mold cavity (118). Method according to one of claims 1 to 32,
characterized in that a control device (130) is provided which controls, preferably fully automatically, the manufacturing process including the transfer of the at least one formwork element (120) by means of the set-up device (122). Device (10) for producing pot-shaped molded concrete parts (12), for example shaft base pieces, in particular for carrying out the method according to one of claims 1 to 33, comprising: a mold with a mold core (16) and a mold jacket (14), which enclose a mold cavity (18) between them, and at least one formwork element (20), for example at least one recess core, which can be introduced into the mold cavity (18) before the mold cavity (18) is filled with concrete and after the formwork has been removed from the molded concrete part (12) at least until it has substantially completely hardened remains, marked by a set-up device (22) on which the at least one formwork element (20) can be arranged at an essentially arbitrary circumferential and / or height position, wherein the set-up device (22) can be brought into coincidence with the mold jacket (14) and / or the mold core (16) after the formwork has been removed from the formwork of the previous concrete part (12) and before the concrete has been poured in, and at least a formwork element (20) in this covering position can be transferred to the mold jacket (14) and / or the mold core (16) by means of at least one transfer device (24). Apparatus according to claim 34,
further comprising at least one of the device features according to any one of claims 1 to 33.

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