EP0160170A1 - Method and device for manufacturing tubbing rings or the like - Google Patents

Abstract

The invention relates to a method and an underfloor machine (10) for the production of concrete parts (12), especially manhole rings, in which crampons (23-26) or stirrups, which consist of a magazine (51), are produced by means of an automatically operating insertion device (50). can be removed, in the underfloor area can be used automatically in the mold core (15). In the meantime, these crampons (23-26) are automatically fed to the core segment (30) between a work cycle that ends when the finished concrete part (12) is ejected from the mold cavity and a subsequent new work cycle with a time overlap with the work steps carried out in the meantime and introduces the crampons (23-26) into its shots. This automatic process takes place while the operator removes and transports the concrete part (12) thus produced from the machine at the end of one work cycle and sets up the machine for the next work cycle. This leads to equally short machine cycle times when manufacturing concrete parts (12) with or without crampons (23-26).

Description

The invention relates to a method for shaping concrete parts, preferably with several protruding elements, in particular climbing elements such as crampons, stirrups or the like. Manhole rings, manhole necks or the like, according to the preamble of claim 1. Furthermore, the invention relates to a shaping device for carrying out this method.

A known molding device of this type (DE-PS 31 10 185) has proven itself well. It enables an automatic production process, which is interrupted several times for manual work. An interruption occurs after the end of the work cycle, in which a concrete part is finished and is ejected with the ejection plate and the lower sleeve when the device is arranged under the floor at the level of the upper edge of the mandrel. Then the finished concrete part, resting on the base, must be removed. Furthermore, a new lower sleeve has to be placed on the discharge plate. In addition, the individual protruding elements, in particular climbing elements, must be inserted by hand. For shaft rings with a height of 500 mm or for cones where only two climbing elements are to be provided the risers are inserted into the mold cores by hand from above. As a rule, the operator must kneel to insert the climbing elements onto the ejection plate. If four riser elements are concreted in, they can only be inserted with great difficulty from above. Rather, it is necessary with underfloor machines that the operator climbs down a staircase into the pit of the machine and then the climbing elements therein. by hand in the mold segment. of the mold core. The methods described are obviously very cumbersome. They are also extremely physically demanding for the operator. These manual operations also have a very negative impact on the cycle time. Due to these manual activities, the automatic production process has very large influenceable times. In addition, the automatic process must also be interrupted.

The invention has for its object to provide a method of the type defined in the preamble of claim 1, which provides a remedy here and relieves the operator of the manual introduction of the climbing elements with all the disadvantages resulting therefrom.

The object is achieved in a method of the type defined in the preamble of claim 1 according to the invention by the features in the characterizing part of claim 1.

This ensures that the protruding elements, in particular risers, are fed simultaneously with the removal of the previously manufactured concrete part. This has the advantage that the cycle time of the machine is the same both for the production of concrete parts without protruding elements to be inserted, in particular risers, and for the production of concrete parts with such elements. The time that was previously required for the manual insertion of the protruding elements is no longer required. Because of the temporal overlap of the automatic feeding and insertion of the protruding elements, in particular risers, shortens the cycle time within this time period within which a concrete part is to be manufactured. This increases the effectiveness of the process and the machine used for it. The number of pieces to be produced per unit of time is increased. At the same time, the automatic process produces reproducible results that are freed from the personal influence of manual handling.

Advantageous further developments of this method result from claims 2 to 6.

The invention further relates to a device of the type mentioned in the preamble of claim 7. These entail the disadvantages described at the outset. The invention is therefore based on the object of creating a device of the type defined in the preamble of claim 6, which in the same way as defined at the outset eliminates the disadvantages and has advantages.

The object is achieved in a device of the type defined in the preamble of claim 7 according to the invention by the features in the characterizing part of claim 6. By means of such an automatically operating element insertion device, the protruding elements, in particular climbing elements, can automatically move into the mold segment of the mold core be inserted in the underfloor area, while in the freely accessible area of the device the operator removes the finished concrete part at the end of the cycle time and carries out the other manual preparatory work for the execution of the next work cycle, in particular in the case of production with sockets, the next sub-sleeve is inserted. This reduces the cycle time of the device by the amount that would otherwise have required the manual introduction of the individual elements, in particular climbing elements. In front It is also partial that the operator is relieved of these cumbersome, extremely strenuous manual tasks. In addition, the operator's ability to influence the time otherwise given by the corresponding manual activities is eliminated. Further details and advantages emerge from claims 8-11. It goes without saying that the gripping device can be designed such that either only one element, in particular a riser element, or several elements can be handled simultaneously. Each gripping device can be assigned at least one magazine of its own. A further advantageous embodiment results from claim 12. The embodiments according to claims 13 and 14 are also advantageous. Each holder can be assigned its own magazine. Instead, it can also be advantageous if a single magazine is assigned to two appropriately aligned holders and the gripping device is controlled accordingly when it is removed from the magazine.

Another advantageous embodiment results from claims 15 and 16. In this way it is achieved that in this way not only climbing elements usually referred to as "crampons" but also stirrups can be automatically fed. Stirrups are usually made of light metal, e.g. aluminum. Because of their low weight, there is a risk that after insertion into the receptacles of the core segment by means of an ejection device and moving it back, the stirrups introduced will slip. This is countered by the fact that when the grippers clamp the stirrups when they are inserted, they are only released when the clamping devices of the core segment have been activated and hold the inserted stirrups. The latter can be gripped in the area of the anchoring ends, which will later sit in the concrete. Crampons can also be handled in the same way. By training as The gripper makes the element insertion device easier, lighter and less expensive. Only one embodiment is required for both types of climbing elements described.

Further advantageous measures result from claims 17 and 18. The features in claim 19 ensure that the individual parts mentioned can be adjusted in the manufacture of concrete parts with different nominal widths with regard to the angle, also when e.g. any supporting elements, in particular risers, should not be aligned and introduced radially with respect to the central axis of the mandrel, but parallel to one another.

A further advantageous embodiment results from claim 20 and claims 21 and 22. According to this, each magazine has its own element guide device.

When the element insert device is in its inserted position, this forms a connection between the magazine on the one hand and the molding device on the other hand, in the element guide device the elements abutting one another there are advanced by at least one element length when the gripping device is activated. The gripping device fulfills two tasks in one. On the one hand, it fulfills the task of removing the element located in the bottom of the magazine stack, which is pulled out of the magazine stack and moved into the element guide device. With the latter, the gripping device also fulfills the task of advancing the elements within the element guiding device by an element length, in such a way that an element is there at the front end through the discharge opening of the guiding device is pushed out and pushed into the receptacle in the core segment through the opening.

The element insertion device designed in this way is extremely simple. It can be created as a welded construction with little effort. Each element guide device is dimensioned in length so that it and the magazines are not in the way.

Due to the features in claim 23, one can look into the element guiding device from the outside. It is therefore easy to monitor and offers e.g. in the event of a malfunction, for cleaning purposes or the like. good and quick access.

The measures according to claim 24 and in particular claims 25-31 are also advantageous. In the case of a double-row arrangement of the elements to be introduced into the concrete part, in particular crampons, all of the elements can simultaneously be introduced into the core segment in a cheap, space-saving and simple control manner. There are only two functions to be controlled, namely the movement of the element insertion device into the insertion position and back and on the other hand the activation of the individual gripping devices provided for each magazine in order to _. Double function to pull the bottom element out of the respective magazine and insert it into the element guide device and at the same time eject an element from the guide device and insert it into the core segment.

The swivel adjustment makes it possible with simple means to adapt the assemblies to different shaped cores with different diameters.

Another advantageous embodiment results from claims 32 and 33. This element insertion device is even simpler. It is particularly suitable for a single-track arrangement in which a plurality of elements, for example stirrups, are to be placed with one another along a mandrel surface line. This element insertion device is particularly simple, inexpensive and space-saving.

Further advantageous measures result from claims 34 and 35. This embodiment represents the lightest, smallest and cheapest solution in terms of material expenditure and space requirements. Depending on the individual case, this can outweigh and despite the larger number of control functions and frequently required refilling of the magazine Give a rash.

Further advantageous measures result from claims 36-41. This form of the gripping device is functionally reliable to a great extent, while being extremely space-saving, simple and cheap.

Further details and advantages result from the following description.

The full wording of the claims is not reproduced above merely to avoid unnecessary repetition, but instead is referred to only by mentioning the claim number, whereby, however, all these features of the claim are to be regarded as being explicitly disclosed at this point and essential to the invention.

• Fig. 1 eine schematische Seitenansicht des Formkernes einer Formeinrichtung zur Formgebung von Betonteilen, gemäß einem ersten Ausführungsbeispiel,
• Fig. 2 einen schematischen Längsschnitt des Formkernes entlang der Linie II - II in Fig. 1,
• Fig. 3 eine schematische, zum Teil geschnittene Seitenansicht eines Teiles einer Maschine mit Formeinrichtung und dem Formkern in Fig. 1, in einer Position nach Beendigung des automatischen Arbeitstaktes, in der das Kernsegment sich in seiner Schließstellung befindet, bereit zur Aufnahme von automatisch einzusetzenden Steigeisen vor Start des neuen automatischen Arbeitstaktes,
• Fig. 4 eine schematische, teilweise geschnittene Seitenansicht entsprechend derjenigen in Fig. 3, in einer Position während des automatischen Einbringens von Steigeisen in den Formkern,
• Fig. 5 einen schematischen axialen Schnitt von Teilen der Formeinrichtung, entsprechend Fig. 3 und 4, in einer Position, bei der in das Kernsegment Steigeisen eingelegt und darin mittels der Spannvorrichtung festgeklemmt sind, wobei das Kernsegment sich in einer bezogen auf die Stellung gemäß Fig. 3 und 4 nach links eingefahrenen Freigabestellung befindet, und in einer Arbeitsstellung der Formeinrichtung nach Einlegen von Bewehrungsringen und vor dem Einbringen von Beton in den Formhohlraum
• Fig. 6 eine schematische, perspektivische Ansicht einer Elementeinsetzeinrichtung für die Formeinrichtung, ohne diese, gemäß einem zweiten Ausführungsbeispiel,
• Fig. 7 eine schematische Draufsicht der Elementeinsetzeinrichtung in Fig. ⁶ in Pfeilrichtung VII,
• Fig. 8 eine schematische, zum Teil geschnittene Seitenansicht eines Teiles einer Maschine mit Formeinrichtung und Formkern, etwa entsprechend Fig. 3, mit der Elementeinsetzeinrichtung in Position vor dem Einsetzen der Steigeisen, gemäß dem zweiten Ausführungsbeispiel,
• Fig. 9 eine schematische, perspektivische Explosionsdarstellung des unteren Teiles eines Magazins und einer Greifeinrichtung der Elementeinsetzeinrichtung gemäß dem zweiten Ausführungsbeispiel in Fig. 6 - 8,
• Fig. 10 eine schematische, perspektivische Ansicht des Ausgabeendes der Element-Führungseinrichtung, gemäß einem gegenüber Fig. 6 - 8 abgewandelten Ausführungsbeispiel,
• Fig. 11 eine schematische, teilweise geschnittene Seitenansicht, etwa ent sprechend derjenigen in Fig. 8, eines Teiles der Formeinrichtung. mit Formkern mit einer Elementeinsetzeinrichtung, im Zustand während des Einbringens von Steigeisen in den Formkern, gemäß einem dritten Ausführungsbeispiel,
• Fig. 12 eine schematische perspektivische Ansicht eines Steigbügels für die Elementeinsetzeinrichtung in Fig. 11,
• Fig. 13 eine schematische, teilweise geschnittene Seitenansicht etwa entsprechend derjenigen in Fig. 11, mit einer Elementeinsetzeinrichtung gemäß einem vierten Ausführungsbeispiel, beim Einbringen.des Steigbügels.

The invention is explained in more detail below with reference to exemplary embodiments shown in the drawings. Show it:

• 1 is a schematic side view of the mold core of a molding device for shaping concrete parts, according to a first embodiment,
• 2 shows a schematic longitudinal section of the mandrel along the line II-II in FIG. 1,
• Fig. 3 is a schematic, partially sectioned side view of a part of a machine with a molding device and the mold core in Fig. 1, in a position after the end of the automatic working cycle, in which the core segment is in its closed position, ready to receive automatically inserted crampons before the start of the new automatic work cycle,
• 4 is a schematic, partially sectioned side view corresponding to that in FIG. 3, in a position during the automatic insertion of crampons into the mold core,
• Fig. 5 is a schematic axial section of parts of the molding device, corresponding to Figs. 3 and 4, in a position in which crampons are inserted into the core segment and therein are clamped by means of the clamping device, the core segment being in a release position retracted to the left in relation to the position according to FIGS. 3 and 4, and in a working position of the molding device after insertion of reinforcement rings and before the introduction of concrete into the mold cavity
• 6 shows a schematic, perspective view of an element insertion device for the molding device, without it, according to a second exemplary embodiment,
• 7 is a schematic plan view of the element insertion device in FIG. ⁶ in the direction of arrow VII,
• 8 is a schematic, partially sectioned side view of a part of a machine with a molding device and molding core, approximately corresponding to FIG. 3, with the element insertion device in position before the crampons are inserted, according to the second exemplary embodiment,
• 9 is a schematic, perspective exploded view of the lower part of a magazine and a gripping device of the element insertion device according to the second exemplary embodiment in FIGS. 6-8,
• 10 is a schematic, perspective view of the output end of the element guide device, according to an embodiment modified from FIGS. 6-8,
• Fig. 11 is a schematic, partially sectioned side view, approximately corresponding to that in Fig. 8, a part of the molding device. with mold core with an element insertion device, in the state during the insertion of crampons into the mold core, according to a third exemplary embodiment,
• 12 is a schematic perspective view of a stirrup for the element insertion device in FIG. 11,
• Fig. 13 is a schematic, partially sectioned side view roughly corresponding to that in Fig. 11, with an element insertion device according to a fourth embodiment, when introducing the stirrup.

First, details of the molding device according to the first embodiment are explained in more detail with reference to FIGS. 1-5.

The molding device shown is part of an underfloor machine 10, which is only indicated schematically and only in a fragmentary representation. The sub- Floor machine 10 has a working area 11 located below floor level 9, in which floor-mounted supports 7 and 8 are also located. The underfloor machine 10 is used with the molding device shown for shaping concrete parts, in particular manhole rings, manhole necks, well rings, transition rings or the like. In the drawings, 12 schematically denotes a manhole ring shaped by means of the shaping device, such as that described in DIN 4034 in individual are described. They consist of a ring wall element with a predetermined inner diameter and outer diameter, the lower end face and the upper end face for the positive interlocking of several such concrete parts 12 each being provided with folds 5 and 6, which are shaped in the same way as the cylindrical shape in the molding device. Each concrete part 12 has a tubular shape with a constant wall thickness. Further details of such molding devices are described in particular in DE-PS 31 10 185, to which Avoiding unnecessary repetition is expressly referred to. The same applies to the mode of operation and the process flow during the shaping.

Part of the molding device is a mold core 15, which is designed so that during the shaping of the concrete part 12, from the inside at the same time preferably several protruding elements of any type, in the present example a total of four crampons 23-26, can be concreted in. The term "crampons" used here encompasses all possible forms and configurations of such elements, which have the function of steps and enable a manhole composed of such concrete parts 12 to be walked on. The term crampons covers the normal crampons commonly referred to as well as heavier and larger safety crampons, e.g. each made of cast iron, as well as the climbing elements commonly referred to as stirrups. In this respect too, reference is made to DE-PS 31 10 185.

The mandrel 15 is approximately hat-shaped. It is hollow and interchangeably fastened on a central vibrator 14. This sits on a base plate 16. Inside, the mandrel 15 contains a e.g. welded plate 17, with which it is placed on the central vibrator 14 and fastened. The plate 17 is e.g. about three-quarters of a circle. The mandrel 15 is here e.g. round, which is not mandatory. It has a circular cover 18 and a cylindrical core wall 19 leading down to the base plate 16.

The molding device also includes an outer mold jacket 22 and a lower sleeve 27 and an upper sleeve 40, which are known.

The mold core 15 has an installation device 29, with the aid of which at least one crampon, preferably at the same time all four crampons 23-26 or 23a-26a, can be concreted into the concrete part 12 to be molded from the inside during the shaping process. The installation device 29 has a core segment 30, which is formed here from a cover section 31 and a wall section 32. The cover section 31 is somewhat larger than a cover-side recess 28 which, in the state according to FIG. 2, is overlapped by the cover section 31 on the three sides forming a U in a sealing manner. The remaining part of the cover 18 containing the recess 28 is fastened to the core wall 19, in particular welded to it or instead integrally therewith, whereby this remaining part of the mold core 15 solidifies and is stiffened against deformation in the region of the cover 18, in particular the core wall 19 .

The wall section 32 of the core segment 30 has the shape of a section of the cylinder wall. Corresponding to the wall section 32, the cylindrical core wall 19 is provided with a cutout 34 which is shaped in the same way and which in the side view according to FIG. 1 is substantially U-shaped and extends from top to bottom. In a side view or section (FIG. 2), there is approximately an angular shape for the core segment 30. Compared to the remaining part of the mandrel 15, it forms an independent element, together with the cover section 31, which is welded to the upper end of the wall section 32. The core segment 30 is in relation to the mold core 15 out of its shaping contour (FIGS. 1-4) horizontally inward in the direction of arrow 33 into a release position according to FIG. 5 and in the opposite direction to arrow 33 back into the closed position shown in FIGS. 1-4 movable. If the core segment 30 is moved into the release position in the direction of the arrow 33, the wall section 32 leaves the cylindrical one _F ormgebungskontur the core wall 19. In addition, the cover section 18. The section 31 moves in Fig. 2 to the left on the remaining part of the lid 34 of the chuck wall 19 is free. Crampons 23 - 26 or 23a - 26a molded in during the shaping process are released from the core segment 30, so that the demoulding of the finished concrete part 12 with crampons 23 - 26 or 23a - 26a, which are incorporated in the same way, by relative displacement between the concrete part 12 and the mold core 15 upwards - or alternatively downwards in the case of an embodiment not shown. In the closed position of the core segment 30 shown in FIGS. 1-4, the latter is inserted into the remaining part of the mold core 15 essentially without steps, especially without any gaps and sealed, thereby completing the shaping contour that is predetermined thereby.

The installation device 29 has, for each crampon 23-26 or 23a-26a to be concreted in, a receptacle 45-48 which is provided on the wall section 32 and in particular has a suitable bearing surface with centering in the region of an opening 41-44 which corresponds to the positionally correct receptacle of a crampon to be inserted there from the outside through the opening 41-44 and to be concreted in before the shaping process.

The installation device 29 also has a tensioning device 88-91 for each opening 41-44 with receptacle 45-48, all of which are connected via circular guide rods 92 to form a unit which can be moved vertically up and down. The round guide rods 92 can be moved vertically up and down in split plain bearings 93. All clamping devices 88-91 have a single clamping drive 94 in the form of a hydraulic or pneumatic working cylinder in common, which acts on the one hand on the round guide rods 92 and on the other hand on a holder of the core segment 30, ie how the clamping devices 88-91 is also part of the core segment 30.

A drive device 35 is provided for the horizontal translation movement of the core segment 30 in the direction of arrow 33 and back, which e.g. has two individual translation drives in the form of hydraulic or pneumatic working cylinders 36, which extend essentially parallel to one another and parallel to the direction of the arrow 33.

The complete core segment 30 together with the respective receptacles 45-48 and associated clamping devices 88-91 and the common clamping drive 94 as a complete element can be detachably and exchangeably held on the remaining part of the mold core 15.

The underfloor machine 10 described according to the first exemplary embodiment in FIGS. 1-5 is provided within the working area 11 with an automatically operating element insertion device 50 which is integrated in the underfloor machine 10. It is placed on the carrier 8 and shown alone in FIGS. 3 and 4. It is at least substantially at the same height as the mold core 15 and is arranged outside the molding device and in the work area 11 that is laterally adjacent to it. The element insertion device 50 is located on the side of the mandrel 15 where the core segment 30 with the openings 41-44 and receptacles 45-48 is arranged, i.e. 3 and 4 to the right of the mandrel 15.

The element insertion device 50 is assigned at least one magazine 51, which is only indicated schematically and in which the individual crampons to be concreted are stored ready to be taken out, one on top of the other. The magazine 51 is located above the corridor height 9, and is therefore freely accessible to the operator of the underfloor machine 10 that the magazine 51 can be refilled with crampons by the operator between the automatic production process in free time. This refill work is completely independent of the automatic production process. As is indicated schematically by a base 52 and an axis 53, the at least one magazine, viewed within a diametral plane of the mandrel 15, is angle-adjustable for the angle adjustment with different sizes. An adjustment for such crampons is also possible, which should be concreted in parallel instead of in the usual way radially to the central axis of the mandrel 15. Crampons stored in magazine 51 can always be removed in the lowest magazine area. When the crampons are removed, they slide down automatically.

The element insertion device 50 has at least one _gripping and insertion device 60, by means of which a crampon or at the same time a plurality of crampons can be removed from the magazine 51, and can be aligned in the correct position on the respective receptacles 45-48 in the core segment 30 of the mold core 15, into which they are to be inserted and can be inserted into the associated receptacles 45-48 from the outside of the mandrel 15. Part of this at least one gripping and inserting device 60 is at least one gripping device 61 which can engage in the at least one magazine 51, grasp at least one crampon therein, take it out and insert it into the respectively assigned receptacle 45-48 of the core segment 30. The gripping device 61 shown can be designed in such a way that, as illustrated in the example of FIG. 3, it simultaneously takes two crampons 23a and 24a from the magazine 51 and, in the manner described above, through assigned openings 41 and 42 of the core segment 30 in the recordings there 45, 46 can use. It goes without saying that instead of this simultaneous, pairwise handling of crampons, the gripping device 61 can also be designed so that, for example, only one crampon is always handled or three, four or more crampons are handled simultaneously in the manner explained. The gripping device 61 shown can also be assigned two magazines 51 positioned in the correct position, so that a crampon is removed from each of the two magazines at the same time when the magazine is moved. For each crampon 23a, '24a (FIG. 3) or 25a, 26a (FIG. 4), the gripping device 61 has a holder 62 and 63 and an associated ejection device, for example in the form of a hydraulic working cylinder 64 or 65. The brackets 62, 63 with associated working cylinders 64, 65 are aligned with one another in space, ie in the same step shape as is the case with the openings 41, 42 in the core segment 30. Both are thus offset within the diametral plane of the mandrel 15 at an angle to one another and at the same time in the direction of the longitudinal central axis of the mandrel 15. Thus, the brackets 62, 63 are arranged with their working cylinders 64, 65 on a support member 66, which in turn on a support 67 a guide 68 which is at least approximately parallel to the longitudinal center axis of the mandrel 15 and can be displaced by means of an associated actuator in the form of, for example, a hydraulic working cylinder 69. The brackets 62, 63 are angularly adjustable with respect to the carrier 67, seen within the diametral plane of the mandrel 15, to adapt to different nominal sizes of concrete parts 12 to be produced. Below the carrier 67, a slide 70 runs transversely, in particular at right angles, to the longitudinal central axis of the mandrel 15 in a suitable manner, for example by means of two indicated bearing blocks 71, 72, and which is movable by means of a drive in the form of, in particular, a hydraulic working cylinder in the direction of the mandrel 15 into an insertion position, which is shown in FIG. 4, and back from the area the The molding device can be moved into the waiting position shown in FIG. 3. The carrier 67 is an integral part of the carriage 70, so that the gripping device 61 is brought into the relevant position by the movement of the carriage 70 between the inserted position and the waiting position. As indicated, the slide 70 can also be arranged on the carrier 8 in an angle-adjustable manner with respect to the mold core 15, as seen within a diametral plane of the mold core 15, in order to enable adaptation to different nominal widths or other desired orientations.

In another exemplary embodiment, not shown, the gripping device has at least one gripper, which grips a gripped crampon by means of closable ones. Clamp the clamps and, after inserting them into the respectively assigned receptacles 45 - 48 of the core segment 30, release them by opening the clamps. This gripper grips each crampon at the end that is later anchored within the concrete of the concrete part 12 when concreting. The gripper is controlled in such a way that its clamps are only opened after the at least one crampon has been inserted, if the crampon inserted into the associated receptacle 45-48 is held non-slip within its receptacle 45-48 by actuating the associated clamping device 88-91 . Compared to the example shown here, the working cylinders 64, 65 are therefore omitted, the holder 62, 63 being designed as a gripper with gripping jaws. This embodiment is particularly suitable for stirrups designed as stirrups, which are usually made of aluminum today and are relatively light, so that if the gripping device in the embodiment shown in FIGS. 3 and 4 were formed, there would be a risk that the stirrups would retract when retracted such gripping device in the waiting position within its recording 45 - 48 slip. The same embodiment is preferably also suitable for the automatic insertion of crampons 23-26, 23a-26a, which are then also clamped at the anchoring ends by means of the gripper. The elimination of the working cylinders 64, 65 reduces effort and costs. Above all, a gripping device designed in this way remains equally well suited for the insertion of crampons and stirrups.

The element insertion device 50 makes it possible for the individual crampons, for example the crampons 23a, 24a, to be in the position according to FIG ^. 3, in the meantime between a work cycle ended with removal, preferably expulsion, of the finished concrete part 12 from the mold cavity and a subsequent new work cycle, overlapping with the work steps carried out in the meantime, automatically feeding the core segment 30 and introducing 45-48 into its receptacles can. This can be done while the concrete part 12 manufactured in the previous work cycle is transported away in the ejected position shown in FIG. 3 and a new lower sleeve 27 is placed on an ejection plate 49 for the next concrete part to be produced. In the meantime, the crampons can be fed individually to the core segment 30 one after the other, or as several groups containing them, and introduced into the receptacles 45-48. It is advantageous if the individual crampons 23a - 26a are removed from the magazine 51 for the next concrete part to be produced, with reference to the receptacles 45 - 48, even before the end of a work cycle completed by ejecting the fully formed concrete part 12 with a time overlap Aligns core segment 30 and in this orientation ready for later feeding and insertion.

Fig. 3 shows a state during the molding process, in which the finished molded concrete part 12 with the ejection plate 49 and the lower sleeve 27 at the level of the upper edge of the mold core 15, which corresponds to the corridor height 9, has been ejected upwards from the mold cavity. The core segment 30, which had been moved into the inserted release position, as also shown in FIG. 5, in order to prevent the molded crampons 23 - 26 from getting caught and being torn out, must be returned to the position shown in FIG 3 closed position shown. The tensioning devices 88-91 are open, as shown.

Already during the work cycle, in which the concrete part 12 ejected according to FIG. 3 was produced, the element insertion device 50 was prepared for the loading state shown in FIG. 3, ie the gripping device 61 has 51 new crampons from the assigned at least one magazine during the time 23a and 24a taken. The gripping and inserting device 60 is thus already in the correct orientation for inserting the crampons 23a, 24a, but is still in the waiting position in FIG. 3. Immediately with the movement of the core segment 30 into the shown closed position, the slide 70 together with the carrier 67 and the gripping device 61 is moved horizontally out of the waiting position into the inserted position, to the left in FIG. 3, towards the core segment 30. Then the bracket 62 is at the level of the opening 41 with the receptacle 45 there and the bracket 63 is at the level of the opening 42 with the receptacle 46 there. Then the working cylinders 64, 65 are actuated, as a result of which the crampons 23a and 24a are removed from the respective bracket 62 and 63 are pushed down through the opening 41 or 42 into the associated receptacle 45 or 46. The carriage 70 then moves back to the waiting position according to FIG. 3. The gripping device 61 then removes the magazine 51 two further crampons 25a, 26a. Thereafter, the gripping device 61 moves into the correspondingly aligned position by actuating the working cylinder 69, so that the holder 62 is now aligned with the opening 43 with the receptacle 47 and the other holder 63 with the opening 44 and the receptacle 48. Then the carriage 70 is moved by its associated drive from the waiting position in FIG. 4 to the left into the insertion position shown there. By activating the working cylinders 64, 65, the crampons 25a, 26a are ejected and placed in the receptacles 47 and 48, respectively. Thereafter, the carriage 70 moves back from the inserted position to the waiting position shown in FIG. 3. This initially fulfills the task of the element insertion device 50. During the rest of the operation of the underfloor machine 10, this can now be brought back to the loading state, for example, as can be seen in FIG. 3.

The described automatic insertion of the individual crampons 23a-26a takes place overlapping in time, during which the operator of the underfloor machine 10 transports the concrete part 12 expelled upwards at the end of the first work cycle on the sub-sleeve 27 and places a new sub-sleeve 27 on the ejection plate 49 . The mechanical insertion of the crampons 23a-26a by means of the element insertion device 50 is quick, reproducibly safe and relieves the operator of these otherwise very cumbersome and extremely strenuous activities which were necessary when manually inserting the crampons. So far, this manual introduction has therefore had a very disadvantageous effect on the cycle time and thus on the production speed; because these manual activities resulted in very large influenceable times for the automatic process, the automatic Manufacturing process also had to be interrupted. It is now achieved that the next crampons 23a - 26a are automatically introduced into the mold core 15 in the work area 11, ie underfloor, while the operator is still busy removing the finished, expelled concrete part 12 at the end of the work cycle and the next Place sleeve 27 on the ejection plate 49. This removal of the concrete part 12 and the insertion of the next sub-sleeve can also be automated.

If, starting from the stage according to FIG. 4, the element insertion device 50 has again moved to the right into the waiting position, each individual tensioning device 88-91 is actuated immediately by activating the tensioning drive 94 and thereby each crampon 23a - inserted into the associated receptacle 45-48. 26a clamped in this position and held securely. As soon as the tensioning drive 94 is activated or at the latest after tensioning has taken place, the next work cycle is started by switching on the underfloor machine 10 at the start. The core segment 30 is moved out of the closed position into the release position shown in FIG. 5 by actuating the translation drive 36. Then the way is clear to lower the ejection plate 49 with a new lower sleeve 27 over the mold core 15. Thereafter, the molded jacket 22 moves downward and is placed on the new lower sleeve 27. Then, in the usual way, individual reinforcement brackets 54, 55 are driven one after the other by time relays, controlled through the mold jacket 22, into the mold cavity, firstly the reinforcement brackets 54, 55 located at the bottom. Then a reinforcement ring 56 is thrown in from above, which points to the lower one Reinforcement holder 54, 55 falls and is automatically centered by this within the mold cavity. After that follow the next reinforcement brackets in the same way until finally the top reinforcement brackets are retracted and a reinforcement ring is centered on them. The automatic process for inserting the reinforcement rings is interrupted because this work is done manually. The automatic process is then continued by actuating a further start button of the underfloor machine 10, starting from the state of the molding device shown in FIG. 5. The translational drive 36 is now activated and the core segment 30 is moved from the release position according to FIG. 5 into its closed position. It goes without saying that the individual reinforcement rings are arranged in such a way that, during this displacement of the core segment 30, the crampons 23a-26a held therein do not hit individual reinforcement rings. Then the loading system, not shown, moves in the usual way, via which concrete is poured into the mold cavity from above. The concrete is compacted by vibration with the central vibrator 14 switched on. After that, the loading system moves back. The upper sleeve 40 is then moved into the mold cavity from above, the upper sleeve 40 being pressed in hydraulically and, with simultaneous vibration, forming the upper fold 6 of the concrete part 12. When the press-in process of the upper sleeve 40 has ended, the tensioning drive 94 is activated, as a result of which all tensioning devices 88-91 are moved upwards into their open positions. Now the clamping force on the crampons 23a - 26a is eliminated, so that the core segment 30 can then be moved from the closed position into the release position shown in FIG. 5, ie into the interior of the mold core 15, by activating the translation drive 36. As a result, the concrete crampons 23a-26a protruding inwards beyond the inner jacket of the finished concrete part 12 are released. De-molding can begin. First, the form jacket 22 moves upwards whereby the still depressed Dbermuffe 40 serves as a hold-down. The upper sleeve 40 then lifts off. Then the finished concrete part 12 is pushed out up to floor level 9. In this respect, there is a state according to FIG. 3. During the production of this concrete part, the gripping device 61 has already removed two crampons 23a, 24a from the magazine 51 and is in the waiting position shown in FIG. 3. As soon as the finished concrete part 12 has reached the upper end position during ejection, the core segment is moved back into its closed position according to FIG. 3 'by activating the translation drive 36. With the ejection of the finished concrete part 12 and moving the core segment 30 into the closed position, a work cycle is carried out completed.

In the second exemplary embodiment shown in FIGS. 6-9, the parts which correspond to the first exemplary embodiment are used by 100 larger reference numerals, so that this makes reference to the description of the first exemplary embodiment without the need for repetition.

The representation in FIG. 8 corresponds at least essentially to that in FIGS. 3 and 4 in the first exemplary embodiment. The second exemplary embodiment differs from the first in that the element insertion device 150. For the individual openings 141-144 in the wall section 132, which are two-lane and offset according to FIG. 1; each has its own magazine 151a, 151b, 151c and 151d. All of the magazines 151a-151d are arranged essentially vertically. The element inserting device 150 according to the second exemplary embodiment fulfills the features of claims 7-10, 14 and 17-19, in which respect there is agreement with the first exemplary embodiment.

As in the first exemplary embodiment, the individual openings 141-144 are also grouped into a double-row arrangement in the second exemplary embodiment (FIGS. 6-8), the one running line being predetermined by the openings 141, 143 running one above the other and along a surface line, and the another running line through the openings 142, 144 arranged one above the other and likewise along a surface line. The latter are offset from the former by one step height in the vertical direction.

For the one line containing the receptacles with openings 141, 143, the two magazines 151a, 151b are provided in the second exemplary embodiment, which are combined to form an assembly and are arranged one behind the other along an approximately radial line. This assembly of the magazines 151a, 151b is held on the foot-side slide 170 by means of a lower carrier 167a.

The other running line, determined by the openings 142, 144, is assigned the two other magazines 151c, 151d, which are also combined to form a second assembly and are also arranged one behind the other in the same way and are held on the carriage 170 on the foot side by means of a carrier 167b.

Each individual magazine 151a-151d has its own element guide device 175a or 175b or 175c or 175d, all of which extend essentially horizontally and at the same time transversely to the vertical axis of the respective magazine 151a-151d. With the right end in FIGS. 7 and 8, each element guide device 175a-175d is connected to the lower end of the associated magazine 151a-151d in such a way that the magazine shaft merges at a right angle into the element guide device. Inside the element guide 175a-175d the individual elements, for example consisting of crampons, follow one another in the manner of a chain link, but they can abut against one another and push each other along the element guiding device.

The elements 123a, b, c, d, e, f, g, h ... are contained in the upper element guide device 175a, which is connected to the magazine 151a and which is assigned to the opening 141 accommodated in the core segment a part of which is still placed vertically in the magazine stack, while the other part is already contained in the chain guide element 175a in the manner of a chain link.

The other element guide 175b, which is assigned to the opening 143 accommodated in the core segment, runs practically congruently parallel and below the upper element guide 175a and leads with its right end to the lower end of the other magazine 151b of this first assembly. The elements 125a, 125b, 125c, 125d ... are contained in succession within this element guide device 175b.

The second assembly with the two magazines 151c and 151d carries the two other element guiding devices, of which that 175c connects with its right end in FIGS. 7 and 8 to the lower end of the magazine 151c. The elements 124a, b, c, d ... are contained in this magazine and the element guide device 175c in the same way.

The other element guide device 175d of this second assembly runs exactly parallel and below that 175c and is connected to the lower end of the other magazine 151d in the same way. This element guide device 175d contains the elements 126a, b, c ... which are to be inserted successively into the assigned opening 144 of the core segment.

In Fig. 6 it is only indicated schematically that in the first assembly the two element guiding devices 175a and 175b are supported vertically by a vertical strut 176, as are the two other element guiding devices 175c and 175d via the vertical strut 177. The lowest for each assembly Guide device 175b or 175d can also carry a damper 178 or 179 at the free end on the left in FIGS. 7 and 8, which is elastically flexible and can absorb shocks and compensate for tolerances.

Each individual element guide device 175a-175d has its left end in FIGS. 7, 8 facing the mold core and, at this end, as shown above all in FIG. 6, has a discharge opening for the element 123a, 125a, 124b to be pushed out there. 126a.

Each element guide device 175a - 175d contains, for example, a longitudinally open guide channel, or in another embodiment, not shown, closed to the outside, the width and height of which essentially correspond to the width or height of an element, for example crampons or stirrups. The floor level of each element guiding device 175a - 175d runs at the level of the element located at the bottom in the stack of magazine 151a - 151d, this floor level extending into the respective magazine and practically forming the bottom of the magazine and the lower contact surface for the magazine stack. This is particularly evident from FIG. 8 for the element guide device 175a and 175b, which are shown there in section. As can also be seen there, this floor contains a slot-shaped opening 180a, 180b, which is important for the gripping device 161 of the gripping and inserting device 160, which will be described later. 6 to 9, each individual element guide device 179a to 175d is formed from two longitudinal U-profile strips, the legs of which are approximately horizontal and directed towards one another, FIG. 10 shows a modified embodiment in which instead Whose angle strips 181a, 181b are provided on both sides. Here, too, each element guide device 175a-175d is so open that one can overlook the interior and also have quick access to the elements contained therein, which is particularly advantageous for maintenance or malfunction cases.

In another exemplary embodiment, not shown, the element guide device is formed from a closed, approximately box-shaped profile which cannot be seen.

Each element guide device 175a-175d is firmly connected to the magazine 151a-151d assigned to it. So these form a unit and can e.g. be designed as a welded construction.

The individual magazines 151a-151d can each be formed in a simple manner from angle profiles placed at the corners, which are already sufficient to keep the vertical stack of individual elements aligned. This can be seen in particular from FIGS. 6 and 7. The spaces between the angle profiles can be free, so that from the outside one has a good view of the inside of each magazine 151a-151d and also has quick access to possible malfunctions.

As can be seen in particular from FIG. 6, the two magazines 151a, 151b of this first assembly are offset in the vertical direction. The lower end of the foremost magazine 151a lies at a clear distance above the lower end of the other, rear magazine 151b, the distance being predetermined by the distance between the openings 141, 143 arranged one below the other in the core segment for each running line.

The situation is corresponding with the second assembly. The lower end of the front magazine 151c runs below the lower end of the magazine 151a, but above the lower end of the magazine 151b of the first assembly. The lower end of the rear magazine 151d in the second assembly runs below the lower end of the magazine 151c and 151b.

In this way, the element insertion device 150 is designed in such a way that for each individual receptacle in the area of the opening 141-144 of the core segment there is an independent magazine 151a-151d assigned to this, together with its own element-guiding device 175a-175d.

The first assembly is supported on the carrier 167a and the second assembly is supported on the carriage 170 via the carrier 167b. Not shown is an embodiment in which each individual assembly is adjustable in height relative to the carriage 170.

As indicated in FIG. 6 only by dashed arrow 182 and can be seen from FIG. 7, the two assemblies 151a, 151b, on the one hand, and 151c, 151d, on the other hand, are each within an approximately horizontal plane, predetermined by the carriage 170, along one Arch path held swiveling. It is both the first assembly 151a, 151b with its two guide devices 175a, 175b and also the second assembly 151c, 151d with their guide devices 175c, 175d are aligned along radial lines which are preferably symmetrical to one another and can only be seen in broken lines in FIG. 7. By swiveling the two assemblies along the curved path according to arrow 182, it is possible to set up precisely to different diameters of core segments. The carriage 170 carries for each assembly a curved segment piece 183a, 183b, along which the respective assembly, while sitting on its support 177a or 177b, can be pivoted. Each arc segment piece 183a, 183b contains, for example, an arcuate elongated hole 184a, 184b, along which a swivel position and a fixation in the set angular position is possible by means of screws (FIG. 7).

Each magazine 151a-151d is assigned its own gripping device 161a-161d, which is arranged in the region of the lower end of the magazine 151a-151d. As shown in FIG. 6 in particular, each gripping device 161a-161d is arranged below the respective element guide device 175a-175d in the region of the right end thereof and held thereon.

The gripping device 161a-161d is the same for each individual magazine 151a-151d. For each magazine 151a - 151d, it has a translation drive in the form of, for example, a pneumatic or, in particular, hydraulic working cylinder 164, 164a for the first assembly and 165, 165a for the second assembly, which reciprocates a hook 185a - 185d in the horizontal direction via its piston rod operated. Each hook 185a-185d is located in the area of the lower end of the associated magazine 151a-151d and accesses there through the assigned, approximately slit-shaped opening 180a, 180b, which in FIG. 8 is for the hook 185a, 185b of the magazine 151a or 151b see is. The respective hook 185a-185d engages transversely to the longitudinal axis of the respective magazine 151a-151d in its lower end, the hook 185a-185d passing under the bottom element in the stack of the respective magazine 151a-151d during the movement in FIG. 8 to the right and can hook into the interior, behind the transverse part of the element.

8 shows that the hook 185a passes under the lowest element 123c in the magazine 181a and has hooked in behind the transverse part of this element 123c in such a way that the hook 185a moves this lowermost element 123c from the magazine toward the left in FIG. 8 151a can be pulled out and inserted into the element guide device 175a, at the same time in the guide device 175a the individual elements stored there are pushed further by one element length, so that the element 123a there at the left end in FIGS. 6-8, which contains the dispensing opening is emitted and fully ejected by the element guide 175a through the opening 141 of the core segment and into its receptacle.

The same applies to the rear magazine 151b of the first assembly, in which the hook 185b also engages behind the element 125d lying in the bottom of the magazine stack, so that when the hook 185b is displaced to the left in FIG. 8 by the length of an element 125d is pulled out of the vertical stack and removed from the magazine 151b and inserted into the element guide device 175b.

For the sake of a better overview, further details of this gripping device 161a are shown schematically in FIG. 9. It can be seen that the hook 185a can be pulled out in the direction of the arrow 186a and to the left by a stroke path corresponding to at least the length of an element 123f and is displaceable in the direction of the mold core which is not visible here, as a result of which the lowermost element 123f is pulled out of the magazine 151a in the direction of the arrow 186a and inserted into the guide device. The hook 185a can then be moved back to its starting position in the opposite direction to the arrow 186a and in the direction of the arrow 186b. During this idle stroke movement, the hook 185a can pass underneath the element in the magazine 151a, for example the element 123f, since the hook 185a is pivotally mounted in one direction according to arrow 187 about a horizontal axis 157 on a fork 158 on which the piston rod of the working cylinder 164 attacks. By means of a spring (not shown further here), the hook 185a can be automatically moved back into the active position according to FIG. 9 after this tilting movement in the direction of the arrow 187 and release. Such tilting hooks, which can tilt freely in a direction according to arrow 187 and which cannot be tilted in the opposite direction to the pivoting direction according to arrow 187, are known per se. In the exemplary embodiment shown in FIG. 9, this tiltability is achieved in that a front stop 159 is contained in the fork 158 at a distance from the horizontal axis 157, against which the hook 185a strikes during the return movement in the opposite direction to arrow 187.

If in the course of the production process by means of the element insertion device 150 elements 123a, 125a - via the first module - and 124a, 126 - via the second module - 'are to be automatically inserted simultaneously through all four openings 141 - 144, this is done by switching on the Working cylinder 173 of the carriage 170, together with the two assemblies resting thereon, are moved horizontally towards the core segment until the position according to FIG. 7 is reached, in which all the discharge openings of the individual element guide devices 175a-175d are each at the level of associated opening 141-144. Then all working cylinders 164, 164a (first assembly) and 165, 165a (second assembly) are switched on simultaneously in order to carry out the lifting movement in the direction of arrow 186a (FIG. 9). The respective hook 185a - 185d at the lower end of the respective magazine 151a - 151d pulls the element there out of the magazine stack and moves it into the interior of the element guide device 175a - 175d. Since the individual elements lie one behind the other in the manner of a chain link and abut against one another, this lifting movement in the region of the end which is aligned with the opening 141-144 pushes out the foremost element 123a, 125a (first assembly) or 124a, 126a (second assembly). In this double-row arrangement, all four elements are therefore introduced into the core segment at the same time. Thereafter, the working cylinder 173 is switched on in a return stroke movement in the opposite direction, as a result of which the carriage 170 is moved in the opposite direction in the horizontal direction away from the core segment, as far as possible. Simultaneously or superimposed with it, all working cylinders 164, -164a and 165, 165a of the individual gripping devices 161a-161d are switched on for the opposite idle stroke movement according to arrow 186b (FIG. 9). The respective hook 185a then tilts around the axis 157 in the direction of the arrow 187 when it strikes the element which is now the lowest in the magazine 151a-151d, so that the hook 185a can pass under this lowest element until the starting position is reached via the working cylinder 164 for the hook 185a is reached again. The hook 185a then, for example automatically via spring, counterweight or the like, returns to the active position according to FIG. 9. in the opposite direction to the arrow 187, whereby he now engages behind the element lying in the bottom of magazine 151a, but only this, in the region of the transverse part between the two legs. The respective gripping device is 161a-161d now ready for the next bar.

The length of the individual element guiding devices 175a - 175d is selected such that no parts of the element insertion device 150, i.e. neither the magazines 151a - 151d nor the guiding devices 175a - 175d, collide with the machine or parts thereof during the other manufacturing process, e.g. the machine's pallet truck. In their retracted position, the element guide devices 175a-175d are therefore outside the machine area.

As can be seen, only two additional control functions are required for the activation of the element insertion device 150, namely control of the working cylinder 173 on the one hand and control of the individual working cylinders 164, 164a or 165, 165a of the gripping devices 161a-161d on the other hand. This does not cause any difficulties in terms of control technology. The element insertion device 150 therefore enables a fully automatic, problem-free process sequence. It is also simple and inexpensive, easy to maintain and, in the event of a malfunction, enables quick access to rectify it at any time.

In the third exemplary embodiment shown in FIG. 11, 200 larger reference numerals are used for the same parts for the same reasons.

The element insertion device 250 according to FIG. 11 is intended for a single-track arrangement with several, here e.g. three, receptacles with openings 241-243 in the core segment 230, these openings 241-243 here all being placed on the same surface line and one below the other.

In addition, the element insertion device 250 is intended for elements in the form of stirrups, of which a stirrup 223a is particularly shown in FIG. 12. The climb Brackets consist of a U-shaped round tube.

In this element insertion device 250 there is also an independent magazine 251a-251c assigned to each opening 241-243, all three magazines 251-251c being combined into a single assembly and arranged one behind the other and being firmly attached to the base-side slide 270.

The lower ends of the individual magazines 251a, c, b are stepped. The lower end of the foremost magazine 251a runs at the top, that of the magazine 251c behind it runs below the lower end of the first magazine and the end of the rearmost magazine 251b runs below that of the middle magazine 251c and at the bottom.

As in the second exemplary embodiment, in the third exemplary embodiment an associated, independent element guide device 275a-275c is connected to each magazine 251a-251c, which is firmly connected to it. The latter is designed in exactly the same way as in the second exemplary embodiment, as is the gripping device 261a-261c present for each guide device 275a-275c, each of which has a hook driven by a working cylinder at the lower magazine end.

In the uppermost element guide device 275a, the individual elements 223a-223d are contained approximately in the manner of a chain link and abutting one another, the element 223e adjoining the latter as the lowest element in the magazine 251a, on which the elements 223f, g, h. .. consequences.

The elements 224a-224e are contained in the middle element guide device 275c, the element 224f adjoining the latter as the lowest element in the magazine 251c, over which elements 224g and others follow in the vertical stack.

The individual elements 225a-225f are stored in the lower element guide device 275b, the element 225g adjoining the latter element, which is the lowest in the magazine 251b, over which element 225h and others are stored in the vertical stack.

If the elements 223a, 224a, 225a are to be introduced through the openings 241-243 into the associated receptacles of the core segment 230 in the course of the production process, the carriage 270 is first moved horizontally into the position shown in FIG. 11 via the working cylinder 273 . If the stroke of each individual gripping device 261a-261c is sufficiently large, the dispensing opening on the left in FIG. 11 of each element guiding device 275a-275c can also run at a small distance from the core segment 230. Thereafter, the individual gripping devices 261a-261c are activated by switching on the working cylinder 264, 264a, 265 to carry out the lifting movement. By means of the gripping device 261a-261c, the lowest element 223e or 225g or 224f in the magazine 251a-251c is pulled out of the vertical stack and pulled into the associated guide device 275a-275c. At the same time, also via the gripping device 261a-261c, the fact that the elements in the guide devices 275a-275c abut one another pushes the foremost element 223a, 224a, 225a out of the dispensing opening and through the opening 241-243 in the core segment 230 inserted the recording there.

Then, by reversing the working cylinder 273, the entire element insertion device 250 in FIG. 11 can be withdrawn to the right, with the working cylinders of the gripping devices 261a-261c being superimposed or shifted at different times.

The element insertion device 350 shown in the fourth exemplary embodiment in FIG. 13 is likewise, like in the third exemplary embodiment in FIG. 11, intended for the same single-track arrangement with a plurality of receptacles and openings 341 which run on a common running line of the core segment 330 and among one another. The element insertion device 350 has a single magazine 351 with an element guide device 375 connected to it. Both are designed and connected to one another as in the previous exemplary embodiments. At the lower end of the magazine 351 there is a gripping device 361 of the same type as was described in the previous exemplary embodiments.

The magazine 351 is by means of a linear actuator, which is e.g. consists of a pneumatic or hydraulic working cylinder 369, adjustable in height relative to the slide 370 along a vertical support 367. The carrier 367 also serves as a vertical guide, which can be designed as a roller guide, for which guide rollers 395 are indicated by dashed lines. In another embodiment, not shown, the guide consists of a sliding guide. The magazine 351 is not rotatable relative to the carrier 367, which is ensured by tongue and groove or similar elements between the holder of the magazine 351 and the carrier 367.

By means of the working cylinder 369, the magazine 351 can be adjusted in sections in the direction of the arrow 396, for example from top to bottom and in opposite directions from bottom to top, in each case by the distance between two successive exposures with openings in the core segment 330.

For activation, the element insertion device 350 is advanced in the horizontal direction to the core segment 330 by means of the working cylinder 373. The magazine 351 can be located with the element guide device 375 at the level of the upper opening 341 in the core segment 330. By actuating the gripping device 361 in the manner described, the element 323 is then first introduced in the region of this upper opening 341. The magazine 351 is then shifted down one step in the direction of the arrow 396 by means of the working cylinder 369 and the element 323b is again introduced into the opening below the opening 341 of the core segment 330 by switching on the gripping device 361. In this way, all the recordings in the core segment 330 are supplied from the single magazine 351 in succession.

It goes without saying that it is also possible to work step by step from bottom to top, so that the magazine 351 is moved into the lowest position by means of the working cylinder 369 as the first work cycle and is then moved up step by step.

The element insertion device 350 according to the fourth exemplary embodiment in FIG. 13 is the simplest in terms of structure and cost. In spite of the various control functions required for the vertical lifting movement and the need to refill the magazine 351 more often, this can be the decisive factor.

Claims (41)

1. A method for shaping concrete parts (12), for example manhole rings, manhole necks or the like, provided with preferably a plurality of protruding elements, in particular climbing elements, such as crampons, stirrups or the like, in which the concrete part (12) in between one inner mold core ( ₁₅ ) and an outer mold shell (22) formed mold cavity and thereby the protruding elements (23 to 26, 23a to 26a), in particular risers, co-molded during the shaping process, which before the shaping process with the mandrel in the shaping position (15) are inserted and held in receptacles (45 to 48) of a core segment (30), which, in relation to the remaining part of the mold core (15), out of its shaping contour into a - for example the demolding of the concrete part (12) with embedded elements ( 23 to 26, 23a to 26a), in particular climbing elements, allow-release position and can be moved back into a closed position in which the core segment (30) is inserts into the remaining part of the mandrel (15), completing its shaping contour, characterized in that the protruding elements (23 to 26, 23a to 26a), in particular risers, in the meantime between one with removal, preferably ejection, of the finished concrete part (12) from the mold cavity finished work cycle and a subsequent new work cycle overlaps with the work carried out in the meantime automatically feeds the core segment (30) and brings it into its receptacles (45 to 48). 2. The method according to claim 1, characterized in that the protruding elements (23 to 26, 23a to 26a), in particular risers, automatically feeds the core segment (30) in time and introduces them into the receptacles (45 to 48) , during which the concrete part (12) manufactured in the previous work cycle is removed. 3. The method according to claim 1 or 2, characterized in that the protruding elements (23 to 26, 23a to 26a), in particular risers, automatically feeds the core segment (30) in time and in the receptacles (45 to 48) , while a new lower sleeve (27) for lowering is inserted into the mold cavity for a concrete part to be produced in the next work cycle. 4 .. The method according to any one of claims 1-3, characterized in that the projecting elements (23 to 26, 23a to 26a). in particular ascending elements, in the meantime one after the other or as several containing groups simultaneously feeding the core segment (30) and introducing it into the receptacles (45 to 48). 5. The method according to any one of claims 1-4, characterized in that the protruding elements (23 to 26, 23a to 26a), in particular risers, are removed from a magazine (51) before the end of a work cycle with a time overlap , aligned with the receptacles (45 to 48) of the core segment (30) and ready in this orientation for feeding and insertion. 6. The method according to any one of claims 1-5, characterized in that the core segment (30) together with the protruding elements (23 to 26, 23a to 26a) clamped therein are moved from the closed position into its release position, and then a lower sleeve ( 27) and / or reinforcement bodies, e.g. Reinforcing rings (56) into the mold cavity and then moving the core segment (30) together with the protruding elements (23 to 26, 23a to 26a) clamped therein back into the closed position. 7. Device for the production of preferably several protruding elements (23-26, 23a-26a; 123a, b, c .... - 126 a, b, c ...; 223a, b, c ... - 225a , b, c; 323a, b, c ...), in particular climbing elements, such as crampons, stirrups or the like, provided concrete parts (12; 112; 212), for example manhole rings, manhole necks or the like, with a shaping device, which has an inner mold core (15) and an outer mold shell (22), the mold core (15) having an installation device (29) for concreting the protruding elements, in particular risers, from the inside into the concrete part to be molded during the molding process, in particular to carry out the method according to claim 1, characterized by an automatically operating element insertion device (50; 150; 250; 350) integrated into the device, which at least essentially at the level of the inner mold core (15) of the molding device and in the work area (11; 111; 211; 311) adjacent to it laterally Forming device is arranged. 8. The device according to claim 7, characterized in that the element insertion device (50; 150; 250; 350) is assigned at least one magazine (51; 151a, b, c, d; 251a, b, c; 351) in lying on top of each other, the individual elements (23-26, 23a-26a; 123a, b, c-126a, b, c; 223a, b, c-225a, b, c; 323a, b, c), especially risers, ready for removal are storable. 9. The device according to claim 7 or 8, characterized in that the element insertion device (50; 150; 250; 350) has at least one gripping and insertion device (60; 160) by means of which an element (23-26, 23a-26a; 323a, b, c), or simultaneously several elements (23a, 24a, 25a, 26a; 123a, 124a, 125a, 126a; 223a, 224a, 225a) from the magazine (51; 151a, b, c, d; 251a, b, c; 351) can be removed, if necessary, can be aligned to the respective receptacle (45-48) in the core segment (30, 230; 330) of the mold core (15), into which they are to be inserted, and in the associated receptacles (45-48 ) can be used from the outside of the mold core (15). 10. The device according to claim 9, characterized in that the at least one gripping and inserting device (60; 160) has at least one gripping device (61; 161a, b, c, d; 261a, b, c; 361) which engage in one magazine (51; 151a, b, c, d; 251a, b, c; 351), at least one element (23-26, 23a-26a; 123a, b, c - 126a, b, c; 223a , b, c - 225a, b, c; 323a, b, c) can grasp and extract from them. 11. The device according to claim 10, characterized in that the at least one gripping and inserting device (60) can insert the gripped element (23a-26a) into the respectively assigned receptacle (45-48) of the core segment (30). 12. The apparatus according to claim 11, characterized in that the gripping device has at least one pair of grippers which can be actuated simultaneously. 13. Device according to one of claims 10 to 12, characterized in that the gripping device (61) has an ejection device (64, 65) for each holder (62, 63) receiving an element (2.3a, 24a or 25a, 26a) ), in particular with a hydraulic or pneumatic working cylinder. 14. Device according to one of claims 7 to 13, characterized in that each holder (62, 63) or the at least one magazine (51; 151a, b, c, d; 251a, b, c; 351) on one Carrier (67; 167a, 167b; 367) held firmly or guided along a guide (68; 367) at least approximately parallel to the longitudinal central axis of the mandrel (15) and by means of an associated actuator, in particular a hydraulic or pneumatic working cylinder (69 ; 369), is displaceable. 15. Device according to one of claims 10 -14, characterized in that the gripping device is formed from at least one gripper which clamps a gripped element (23a to 26a) by means of closable clamps and after insertion into the respectively assigned receptacle (45 to 48) of the core segment (30) by opening the clamps. 16. The apparatus according to claim 15, characterized in that the clamps of the at least one gripper can only be opened after inserting the at least one element (23a to 26a) if the at least one has previously been inserted into the associated receptacle (45 to 48) Element is held non-slip within its receptacle (45 to 48) by actuating the associated clamping device (88 to 91). 17. Device according to one of claims 7 to 16, characterized in that the element inserting device (50; 150; 250; 350) has at least one slide (70;) which is displaceable essentially transversely, in particular at right angles, to the longitudinal central axis of the mandrel (15). 170; 270; 370) which, by means of a drive, in particular a hydraulic or pneumatic working cylinder (173; 273; 373), can be moved in the direction of the mold core (15) into an insertion position and back out of the area of the molding device into a waiting position is. 18. Device according to claims 14 and 17, characterized in that the carrier (67; 167a, 167b; 367) is arranged on the slide (70; 170; 370). 19. Device according to one of claims 9 to 18, characterized in that the at least one magazine (51; 151a, b, c, d; 251a, b, c; 351) and / or the at least one gripping device (61; 161a, b, c, d; 261a, b, c; 361) and / or the slide (70; 170; 270; 370) with respect to the mandrel (15), seen within a diametral plane of the mandrel (15), can be adjusted in angle are arranged. 20. Device according to one of claims 7 to 19, characterized in that each individual magazine (151a, b, c, d; 251a, b, c; 351) has its own element guide device (175a - 175d; 275a - 275c ; 375), which extends essentially horizontally and transversely to the vertical longitudinal axis of the magazine (151a, b, c, d; 251a, b, c; 351) and with one end to the lower end of the magazine (151a, b , c, d; 251a, b, c; 351) is connected, in the interior approximately successive and abutting elements (123a, b, c - 126a, b, c; 223a, b, c - 225a, b, c; 323a, b, c) and with its other end facing the mandrel and at this end has a discharge opening for an element to be pushed out (123a, 125a, 124a, 126a; 223a, 224a, 225a; 323a). 21. The apparatus according to claim 20, character- ized in that the element guide means (175a, b, c, d; 275a, b, c; 375) contains an outwardly closed or longitudinally open guide channel, the width and height in essentially corresponds to the width or height of an element (123a, b, c - 126a; b, c; 223a, b, c - 225a, b, c; 323a, b, c). 22..Device according to claim 20 or 21, characterized in that the bottom plane of the element guide device (175a, b, c, d; 275a, b, c; 375) at the level of the stack in the magazine (151a, b, c , d; 251a, b, c; 351) runs to the bottom bearing element. 23. Device according to one of claims 20 to 22, characterized in that the element guide device (175a, b, c, d; 275a, b, c; 375) has two longitudinally extending angle strips (181a, b) or U-profile strips , whose legs are approximately horizontal and directed towards each other. 24. Device according to one of claims 20 to 23, characterized in that each element guide device (175a, b, c, d; 275a, b, c; 375) is fixed to the magazine (151a, b, c) assigned to it , d; 251a, b, c; 351). 25. Device according to one of claims 7 to 24, characterized in that the element insertion device (150; 250; 350) for each individual receptacle (45-48) of the core segment (230; 330) has an independent magazine (51 ; 151a, b, c, d; 251a, b, c), preferably with its own element guide device (175a, b, c, d; 275a, b, c). 26. Device according to one of claims 7 to 25, wherein the receptacles of the core segment specify a single-row or a double-row arrangement of the elements, characterized in that the magazines (151a, b, c, d), the elements for setting a running line included and assigned to the latter, combined into one assembly and arranged one behind the other. 27. The apparatus according to claim 26, characterized in that for a two-row arrangement with e.g. two images on the running line of the core segment for the first running line two magazines (151a, 151b) to form a first assembly and for the second running line two magazines (151c, .151d) to form a second assembly and arranged one behind the other, each assembly (151a, b 'and 151c, d) has two element guide devices (175a, b and 175c, d) arranged one above the other, which are seated on the assigned magazine (151a, b or 151c, d) for each assembly. 28. The apparatus according to claim 27, characterized in that each assembly (151a, b or 151c, d) is held on the base-side slide (170) by means of its own carrier (167a or 167b). 29. The device according to claim 28, characterized in that the element guide devices (175a, b, c, d) of the two assemblies (151a, b and 151c, d) are arranged along preferably symmetrical radial lines. 30. Device according to one of claims 27 to 29, characterized in that each assembly (151a, b or 151c, d) is height-adjustable relative to the foot-side slide (170) and / or within an approximately horizontal plane along an arc path (arrow 182) is pivotally held. 31. The device according to claim 30, characterized in that the carriage (170) for each assembly (151a, b or 151c, d) carries an arc segment piece (183a or 183b) along which the assembly with its carrier (167a or 167b) is pivotally adjustable. 32..Device according to claim 26, characterized in that for a single-track arrangement with several, e.g. three or four, recordings on a common running line of the core segment (230) a number corresponding to the number of recordings, e.g. B. of three or four magazines (251a, b, c) are combined to form an assembly and arranged one behind the other, the individual element guide devices (275a, b, c) of the individual magazines (251a, b, c) each being parallel to one another and run in a stepped manner and are connected to the lower end of the respectively assigned magazine (251a, b, c). 33. Device according to claim 32, characterized in that the assembly (251a, b, c) is fixedly arranged on the carriage (270). 34. Apparatus according to claim 26, characterized in that a single magazine (351) with an element guide device (375) connected thereto is provided for a single-track arrangement with a plurality of receptacles on a common running line of the core segment (330) Lift drive, in particular a pneumatic or hydraulic working cylinder (369), is held on a vertical support (367) so that it can be adjusted in height. 35. Apparatus according to claim 34, characterized in that the single magazine (351) can be adjusted in height downwards and / or upwards by the stroke drive (369) by the distance between two successive recordings of a running line of the core segment (330). 36. Device according to one of claims 7 to 35, characterized in that each magazine (151a, b, c, d; 251a, b, c; 351) has its own gripping device (161a, bc, d; 261a, b, c; 361), which is arranged in the region of the lower end of the magazine. 37. Device according to claim 36, characterized in that the gripping device (161a, b, c, d; 261a, b, c; 361) pushes one into the magazine (151a, b, c, d; 251a, b, c ; 351) has a hook (185a, b, c, d) engaging transversely to its vertical longitudinal axis, which passes under the bottom element (123f, Fig. 9) in the stack in the magazine (151a, b, c, d) and inside it , behind the cross section of the element (123f). 38. Device according to claim 37, characterized in that the hook (185a, b, c, d) by means of a translation drive, in particular a pneumatic or hydraulic working cylinder (164, 164a, 165, 165a; 264, 264a, 265; 364 ), can be actuated. 39. Device according to one of claims 36 to 38, characterized in that the hook (185a, b, c, d) by a stroke path corresponding to at least the length of an element from the magazine (151a, b, c, d; 251a , b, c; 351) can be pulled out and pushed in the direction of the mandrel and can then be moved back in the opposite direction to its starting position in the idle stroke. 40. Device according to one of claims 37 to 39, characterized in that the hook (185a, b, c, d) is designed as a tilting hook which tilts freely in one direction (arrow 187) and which coincides with the idle stroke movement Driving underneath the element (123f) located at the bottom in the magazine (151a) is automatically tiltable and cannot be tilted when the pulling movement is in the opposite direction. 41. Device according to one of claims 20 to 40, characterized in that each gripping device (161a, b, c, d; 261a, b, c; 361) below the respective element guide device (175a, b, c, d ; 275a, b, cs 375) is arranged and held on this.

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