EP0160170B1 - Verfahren und Vorrichtung zur Herstellung von Schachtringen oder dergleichen - Google Patents

Verfahren und Vorrichtung zur Herstellung von Schachtringen oder dergleichen Download PDF

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Publication number
EP0160170B1
EP0160170B1 EP85101805A EP85101805A EP0160170B1 EP 0160170 B1 EP0160170 B1 EP 0160170B1 EP 85101805 A EP85101805 A EP 85101805A EP 85101805 A EP85101805 A EP 85101805A EP 0160170 B1 EP0160170 B1 EP 0160170B1
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EP
European Patent Office
Prior art keywords
magazine
elements
core
core segment
mould
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85101805A
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German (de)
English (en)
French (fr)
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EP0160170A1 (de
Inventor
Richard Kraiss
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Georg Prinzing and Co KG Betonformen und Maschinenfabrik GmbH
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Georg Prinzing and Co KG Betonformen und Maschinenfabrik GmbH
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Application filed by Georg Prinzing and Co KG Betonformen und Maschinenfabrik GmbH filed Critical Georg Prinzing and Co KG Betonformen und Maschinenfabrik GmbH
Priority to AT85101805T priority Critical patent/ATE28591T1/de
Publication of EP0160170A1 publication Critical patent/EP0160170A1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
    • B28B21/566—Climbing elements

Definitions

  • the invention relates to a method for shaping concrete parts provided with preferably a plurality of protruding elements, in particular climbing elements, such as crampons, stirrups or the like.
  • the invention relates to a shaping device for performing this method.
  • a known molding device of this type (DE-A-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.
  • the climbing elements are inserted into the mold cores by hand from above.
  • the operator must kneel to insert the climbing elements onto the ejection plate.
  • 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 manually inserts the climbing elements into 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 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.
  • the protruding elements in particular risers
  • the operator transports the finished concrete part at the end of the cycle time and the other manual preparation work for the Execution of the next work cycle hits, especially in the case of production with sub-sleeves, 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.
  • the gripping device can be designed such that either only one element, in particular a climbing 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.
  • 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 z. B. any protruding elements, in particular risers, should not be aligned and introduced radially with respect to the central axis of the mandrel, but parallel to each other.
  • each magazine has its own element guide device.
  • the element insert 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.
  • the gripping device also fulfills the task of advancing the elements within the element guide device by one element length, in such a way that an element is pushed out at the front end through the discharge opening of the guide device and pushed into the receptacle at 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.
  • the measures according to claim 24 and in particular claims 25-31 are also advantageous. If the elements to be inserted in the concrete part, in particular crampons, are arranged in two runs, the two assemblies can simultaneously introduce all of the elements into the core segment in a cheaper, space-saving and control-technically simple 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 pull the bottom element out of the respective magazine with a double function and to insert it into the element guide device and simultaneously eject an element from the guide device at the other end 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.
  • 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.
  • 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.
  • This form of the gripping device is functionally reliable to a great extent, while being extremely space-saving, simple and cheap.
  • the molding device shown is part of an underfloor machine 10, which is only indicated schematically and only in a fragmentary representation.
  • the underfloor machine 10 has a working area 11 located below the floor height 9, in which floor-mounted supports 7 and 8 are also located.
  • the underfloor machine 10 serves to shape concrete parts, in particular manhole rings. Manhole necks, well rings, transition rings or the like.
  • 12 schematically denotes a manhole ring shaped by means of the shaping device, in such a way as it is, for. B. are described in detail in DIN 4034.
  • each concrete part 12 has a tubular shape with a constant wall thickness. Further details of such shaping devices are described in particular in DE-A-31 10 185, to which express reference is made to avoid unnecessary repetitions. The same applies to the mode of operation and the process flow during the shaping.
  • Part of the shaping device is a mandrel 15, which is designed such 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.
  • 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. B. each made of cast iron, as well as the climbing elements conventionally referred to as stirrups. So far is referred 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 z. B. welded plate 17 with which it is placed on the central vibrator 14 and attached. The plate 17 is, for. B. approximately three-quarter circle. The mandrel 15 is here, for. B. round, but this 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, as a result of which 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.
  • 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.
  • side view or section (FIG. 2), there is approximately an angular shape for core segment 30.
  • 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.
  • the mounting 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 contact surface with centering in the region of an opening 41-44, which accommodates a positionally correct one there serves crampon to be inserted from the outside through the opening 41-44, to be concreted in before the shaping process.
  • the mounting device 29 also has a clamping 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 in common a single clamping drive 94 in the form of a hydraulic or pneumatic working cylinder, which on the one hand is connected to the round guide rod 92 on the other hand, engages a holder of the core segment 30, that is to say how the clamping devices 88-91 are also part of the core segment 30.
  • a drive device 35 For the horizontal translation movement of the core segment 30 in the direction of arrow 33 and back, a drive device 35 is provided, which, for. B. has two individual translation drives in the form of hydraulic or pneumatic working cylinders 36 which extend substantially 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. H. 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, so it is freely accessible to the operator of the underfloor machine 10, so that the operator can refill the magazine 51 with crampons in free time between the automatic production process. This refill work is completely independent of the automatic production process.
  • the at least one magazine viewed within a diametral plane of the mandrel 15, is angle-adjustable for the angle adjustment with different sizes.
  • the element insertion device 50 has at least one gripping and insertion device 60, by means of which one crampon or several crampons can be removed from the magazine 51 at the same time. can be aligned to the respective receptacles 45-48 in the core segment 30 of the mandrel 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 engages in the at least one magazine 51, grips at least one crampon therein, removes it and can insert it in 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 into the recordings there 45. 46 can use. It is understood that instead of this simultaneous, pair-wise handling of crampons, the gripping device 61 can also be designed such that, for. B. only one crampon is handled or three, four or more crampons are handled simultaneously in an explained manner.
  • 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.
  • the gripping device 61 has, for each crampon 23a, 24a (FIG. 3) or 25a, 26a (FIG. 4), a holder 62 and 63 and an associated ejection device, e.g. B. in the form of a hydraulic cylinder 64 or 65.
  • the brackets 62, 63 with associated working cylinders 64, 65 are aligned with each other in space, i. H. 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.
  • brackets 62, 63 are arranged with their working cylinders 64, 65 on a support member 66, which in turn on a support 67 a guided at least approximately parallel to the longitudinal center axis of the mandrel 15 and 68 by means of an associated actuator in the form of a z. B. hydraulic working cylinder 69 is displaceable.
  • the brackets 62, 63 are angularly adjustable with respect to the carrier 67 within the diametral plane of the mandrel 15 to adapt to different nominal sizes of concrete parts 12.
  • 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.
  • 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.
  • the gripping device has at least one gripper which can clamp a crampon gripped by means of closable clamps and, after insertion into the respectively assigned receptacle 45-48 of the core segment 30, can be released 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 .
  • 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 climbing elements designed as stirrups, which today usually consist of aluminum and are relatively light, so that at Formation of the gripping device in the embodiment shown in FIGS. 3 and 4 there would be the risk that the stirrups would slip within its receptacle 45-48 when such a gripping device was returned to the waiting position.
  • the same embodiment is preferably also suitable for the automatic insertion of crampons 23-26, 23a-26a, which are then likewise 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 is still equally well suited, on the one hand, for the insertion of crampons and, on the other hand, of stirrups.
  • the element insertion device 50 makes it possible that the individual crampons, for. B. the crampons 23a, 24a in the position according to FIG. 3, in the meantime between a work cycle which has ended with removal, preferably expulsion, of the finished concrete part 12 from the mold cavity and a subsequent new work cycle with temporal overlap with the work steps carried out in the meantime can automatically feed the core segment 30 and introduce 45-48 into its receptacles. 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.
  • the crampons can be fed individually to the core segment 30 one after the other or as several containing groups and introduced 45-48 into the segment. It is advantageous if the individual crampons 23a-26a are removed from the magazine 51 with respect to the receptacles 45-48 before the completion of a work cycle completed by ejecting the fully formed concrete part 12 with a time overlap therewith for the next concrete part to be produced 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 pushed-in release position, as also shown in FIG. 5, in order to prevent the molded crampons 23-26 from getting caught and torn out, must be returned to the position shown in FIG 3 closed position shown.
  • the tensioners 88-91 are open as shown.
  • the element insertion device 50 was prepared for the loading state shown in FIG. H. during this time, the gripping device 61 has removed new crampons 23a and 24a from the assigned at least one magazine 51.
  • 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.
  • 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.
  • 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.
  • the working cylinders 64, 65 are then 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 takes two additional crampons 25a, 26a from the magazine 51.
  • 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.
  • 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.
  • the working cylinders 64, 65 By activating the working cylinders 64, 65, the crampons 25a, 26a are ejected and placed in the receptacles 47 and 48, respectively.
  • the carriage 70 moves back from the inserted position to the waiting position shown in FIG. 3.
  • This can now z during the rest of the operation of the underfloor machine 10 again. B. brought to the loading state, as can be seen from 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 lower sleeve 27 and places a new lower 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.
  • each individual tensioning device 88-91 is actuated immediately by activating the tensioning drive 94 and thereby every crampon 23a inserted into the associated receptacle 45-48. 26a clamped in this position and held securely.
  • 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.
  • 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.
  • 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.
  • 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.
  • the tensioning drive 94 is activated, as a result of which all the tensioning devices 88-91 are moved upward into their open positions.
  • the clamping force on the crampons 23a-26a does not apply, so that the core segment 30 is subsequently moved from the closed position into the release position shown in FIG. H. can be moved into the interior of the mandrel 15.
  • the concrete crampons 23a-26a projecting inward beyond the inner jacket of the finished concrete part 12 are released.
  • De-molding can begin. First, the shaped jacket 22 moves upwards, the upper sleeve 40, which is still pressed down, serving as a hold-down device. The upper sleeve 40 then lifts off. Then the finished concrete part 12 is pushed out up to floor level 9. In this respect, a state according to FIG. 3 results.
  • 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.
  • the core segment is moved back into its closed position according to FIG. 3 by activating the translation drive 36.
  • a work cycle is ended when the finished concrete part 12 is ejected and the core segment 30 is moved into the closed position.
  • 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 double-tracked and offset according to FIG. 1, each has its own magazine 151a. 151b, 151c and 151d. All magazines 151a-151d are arranged essentially vertically.
  • the element insertion device 150 according to the second exemplary embodiment fulfills the features of claims 7-10.14 and 17-19, so that there is agreement with the first exemplary embodiment in this respect.
  • the individual openings 141-144 in the second embodiment are grouped into a two-row arrangement, the one running line being predetermined by the openings 141, 143 running one above the other and along a surface line, and the other running line through the one above the other and also along a surface line arranged openings 142, 144.
  • the latter are offset from the former by one step height in the vertical direction.
  • 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 via 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 thereby transversely to the vertical axis of the respective magazine 151a-151d.
  • 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.
  • the individual e.g. B. consisting of crampons elements like a chain link, which abut each other and can push each other along the element guide.
  • 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 other two 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.
  • 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 175a-175d contains e.g. B. along continuously open - or in another, not shown embodiment closed to the outside - guide channel, the width and height of which is essentially the width or height of an element. e.g. B. crampon or stirrup corresponds.
  • the floor level of each element guide device 175a-175d runs at the level of the lowest element in the stack of the 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.
  • each individual element guide device 179a-175d is formed from two longitudinal U-profile strips, the legs of which are oriented approximately horizontally and towards one another, in FIG. 10 shows a modified embodiment in which instead of the longitudinal strips 181a, 181b of which run longitudinally on both sides are provided.
  • 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.
  • the element guide device is made of a closed, for example formed box-shaped profile that is not visible.
  • 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. B. 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 one has a good view from the outside of the inside of each magazine 151a-151d and also has quick access to possible malfunctions.
  • the two magazines 151a, 151b of this first assembly are offset in the vertical direction.
  • the lower end of the foremost magazine 151a lies with. 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 there 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.
  • 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, an independent one.
  • this associated magazine 151a-151d is provided together with its own element guide 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.
  • An embodiment is not shown in which each individual assembly is height-adjustable relative to the carriage 170.
  • the two assemblies 151a, 151b are on the one hand and 151c, respectively.
  • 151 is pivotally adjustable for itself within an approximately horizontal plane, predetermined by the carriage 170.
  • Both the first assembly 151a, 151b with its two guide devices 175a, 175b and the second assembly 151c, 151d with its guide devices 175c. 175d is aligned along radial lines which preferably run symmetrically to one another and can only be seen in broken lines in FIG. 7.
  • 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 e.g. B. an arcuate elongated hole 184a, 184b, along which a swivel adjustment and by means of screws a fixation in the set angular position is possible (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.
  • Each magazine 151a-151d has a translation drive in the form of, for. B. a pneumatic or in particular hydraulic working cylinder 164, 164a in the first assembly and 165, 165a in the second assembly, which actuates a hook 185a-185d in the horizontal direction reciprocatingly via its piston rod.
  • 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 151 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.
  • FIG. 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 FIG. 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.
  • this gripping device 161a can be pulled out by a stroke path corresponding to at least the length of an element 123f in the direction of the arrow 186a and to the left and can be displaced in the direction of the mold core which is not visible here, as a result of which the lowest element 123f is pulled out of the magazine 151a in the direction of the arrow 186a and is 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.
  • the hook 185a can be the lowest element in the magazine 151a, e.g. B. the element 123f, because the hook 185a is pivotally mounted in one direction according to arrow 187 about a horizontal axis 157 on a fork 158 to which the piston rod of the working cylinder 164 engages.
  • a spring not shown further here
  • the hook 185a can be automatically moved back into the active position according to FIG. 9.
  • 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.
  • 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 arises, e.g. B. automatically via spring, counterweight or the like., Again in the effective position according to FIG. 9, in the opposite direction to the arrow 187, whereby he now the lowest element in the magazine 151a, but only this, in the area of the cross member between the reaches behind both legs.
  • the respective gripping device 161a-161d is now ready for the next cycle.
  • the length of the individual element guiding devices 175a-175d is selected so that no parts of the element inserting device 150, that is to say neither the magazines 151a-151d nor the guiding devices 175a-175d, collide with the machine or parts thereof, e.g. B. the machine's truck. In their retracted position, the element guide devices 175a-175d are therefore outside the machine area.
  • 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.
  • the element insertion device 250 according to FIG. 11 is intended for a single-track arrangement with several, here z. B. three, recordings with openings 241-243 in the core segment 230, these openings 241-243 are all placed here on the same surface line and with each other.
  • 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 stirrups consist of a U-shaped round tube.
  • this element insertion device 250 there is also an independent magazine 251a-251c assigned to each opening 241-243. wherein all three magazines 251-251c are combined into a single assembly and arranged one behind the other and are 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 is 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.
  • 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.
  • 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.
  • the slide 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 discharge opening of each element guide device 275a-275c on the left in FIG. 11 can also run at a small distance from the core segment 230. After this, the individual gripping devices 261a-261c are activated by switching on the working cylinder 264, 264a, 265 to carry out the lifting movement.
  • the gripping device 261 a-261 c is used to pull out the lowest element 223e or 225g or 224f in the magazine 251 a-251 c from the vertical stack and pull it 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.
  • 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 here, for. B. consists of a pneumatic or hydraulic working cylinder 369, relative to the carriage 370 along a vertical support 367 adjustable in height.
  • 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.
  • 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.
  • the magazine 351 is intermittently in the direction of arrow 396 z. B. from top to bottom and in opposite directions from bottom to top, adjustable in batches, each by the distance between two successive recordings with openings in the core segment 330th
  • 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.
  • the gripping device 361 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 shifted down one step in the direction of 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.
  • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
EP85101805A 1984-02-28 1985-02-20 Verfahren und Vorrichtung zur Herstellung von Schachtringen oder dergleichen Expired EP0160170B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85101805T ATE28591T1 (de) 1984-02-28 1985-02-20 Verfahren und vorrichtung zur herstellung von schachtringen oder dergleichen.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3407124 1984-02-28
DE3407124 1984-02-28
DE3501845 1985-01-22
DE19853501845 DE3501845A1 (de) 1984-02-28 1985-01-22 Verfahren und vorrichtung zur formgebung von mit vorzugsweise mehreren abstehenden elementen, insbesondere steigelementen, wie steigeisen, steigbuegeln o.dgl. versehenen betonteilen, z.b. schachtringen, schachthaelsen o.dgl.

Publications (2)

Publication Number Publication Date
EP0160170A1 EP0160170A1 (de) 1985-11-06
EP0160170B1 true EP0160170B1 (de) 1987-07-29

Family

ID=25818880

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101805A Expired EP0160170B1 (de) 1984-02-28 1985-02-20 Verfahren und Vorrichtung zur Herstellung von Schachtringen oder dergleichen

Country Status (3)

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US (1) US4588544A (enrdf_load_stackoverflow)
EP (1) EP0160170B1 (enrdf_load_stackoverflow)
DE (1) DE3501845A1 (enrdf_load_stackoverflow)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3507270A1 (de) * 1984-05-02 1985-11-07 Baumgärtner GmbH & Co Maschinenfabrik KG, 7902 Blaubeuren Vorrichtung zur herstellung von im querschnitt ringfoermigen betonteilen
EP0429389A3 (en) * 1989-11-20 1991-11-06 Sakurai Kenzai Sangyo Kabushiki Kaisha Process of and apparatus for forming concrete pipe with step
AT398932B (de) * 1990-09-12 1995-02-27 Julius Posch Ges M B H Ing Vorrichtung zum aufsetzen von dübeln auf aus einem formkern vorstehende stifte
DE4210617A1 (de) * 1991-08-20 1993-02-25 Baumgaertner Maschf Gmbh Einrichtung zur herstellung von rohrfoermigen betonteilen mit bewehrungsteilen
DK43992D0 (da) * 1992-04-01 1992-04-01 Pedershaab As Formudstyr til af beton af stoebe broendringe eller kegler med stigetrin
FR2723117B1 (fr) * 1994-07-26 1996-10-25 Colle Spa Perfectionnement a un procede pour la realisation de marches en particulier du type a echelons, sur elements pour puissards de controle en phase de moulage
US5792484A (en) * 1997-02-19 1998-08-11 Hawkeye Concrete Products Co. Automated feed system for pipe making machine
DK174807B1 (da) * 2000-02-23 2003-12-01 Pedershaab As Fremgangsmåde og apparat til fremstilling af brøndgods med fastmonterede stigetrin
US20040261329A1 (en) * 2000-05-19 2004-12-30 Kugler William E. Apparatus for adjusting the elevation of a planar surface with threaded and non-threaded components
US20040035064A1 (en) * 2000-05-19 2004-02-26 Kugler William E. Non-threaded apparatus for selectively adjusting the elevation of a building surface

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1555878A (en) * 1925-02-25 1925-10-06 Rust Eng Co Mold
DE559662C (de) * 1931-02-03 1932-09-22 Otto Kind Verkaufs- und Aufbewahrungsbehaelter fuer verpackte Waren
US3315327A (en) * 1965-01-19 1967-04-25 Harry W Mcclarney Masonry constructing apparatus
US3433545A (en) * 1967-01-18 1969-03-18 Don Elmo Rainey Display and vending apparatus
US3655842A (en) * 1969-10-17 1972-04-11 Viropac Inc Method of vibrating core in concrete pipe making machine
US3729165A (en) * 1971-06-16 1973-04-24 Cypert J Form for manholes and the like
US4075272A (en) * 1974-11-13 1978-02-21 Washabaugh Edward P Ladder rung implanter
DE3013956A1 (de) * 1980-04-11 1981-10-15 Baumgärtner GmbH & Co Maschinenbau KG, 7902 Blaubeuren Vorrichtung zum einsetzen von steigeisen in schachtringe o.dgl. aus beton
DE8107640U1 (de) * 1981-03-17 1981-09-17 Georg Prinzing Gmbh & Co Kg Betonformen- Und Maschinenfabr "Formeinrichtung zur Formgebung von Betonteilen, insbesondere Schachtringen, Schachthälsen od.dgl."

Also Published As

Publication number Publication date
DE3501845C2 (enrdf_load_stackoverflow) 1992-05-07
EP0160170A1 (de) 1985-11-06
DE3501845A1 (de) 1985-08-29
US4588544A (en) 1986-05-13

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