• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an external shape of a casting mold for producing tubular precast concrete elements with a jacket (1) forming at least one axial joint (4), the edge flanges (5, 6) of which extend along the butt joint (4) being detachably connected by means of a tensioning device which extends over the Length of the butt joint (4) distributed, one of the two edge flanges (5, 6) and acted upon by a clamping drive (9) acted upon tie rod (8) with a widened clamping head (10) on the outside at the opposite edge flange (6) abutting plungers (11) attack, which from a clamping head (10) of the tie rods (8) overlapped locking position in a release position for the clamping head (10) are displaceable. In order to create advantageous construction conditions, it is proposed that the pressure pieces (11) form a positioning strip (12) displaceably mounted in the longitudinal direction of the joint and that the tie rods (8) pass through the edge flange (6) with the adjoining control strip (12) in passage openings (17) , which have a larger cross section than the clamping heads (10), while the passage openings (17) for the tie rods (8) in the adjusting bar (12) as slots (14) with a widened portion (15) for the clamping head passage and one in it Adjusting direction of the adjusting bar (12) subsequent, narrower section (16) are formed for a peripheral clamping head support.
    公开号:AT514938A4
    申请号:T50714/2013
    申请日:2013-10-31
    公开日:2015-05-15
    发明作者:
    申请人:Schlüsselbauer Johann Ing；
    IPC主号:
    专利说明:

    The invention relates to an outer shape of a casting mold for producing rohr¬förmiger precast concrete with a at least one axial butt joint forming Man¬tel whose along the butt joint extending edge flanges are detachably connected via a Spanneinrich¬.
    To remove moldings produced in casting molds, it is necessary, in particular when the precast concrete parts in the casting mold are substantially hardened, to open the outer mold. For this purpose, it is known to perform the jacket of the outer shape slotted and for connecting the forming between the butt joint edge flanges of the shell vorzuse¬hen a clamping device which encompasses the butt joint bridging distributed over its length clamping drives, so that the shell of the outer shape on this Clamping drives for the casting of precast concrete parts can be closed and spread open for demoulding. It is disadvantageous in these known tensioning devices, however, that they do not release the two edge flanges of the jacket to be joined when opening the jacket, so that demoulding of the precast concrete part has to be carried out exclusively in the axial direction. In a two- or multi-part outer shape, the jacket segments can be pulled radially from the precast concrete part. The individual middle segments also allow easy handling when cleaning or applying a release agent. The connection of the edge joints delimiting the butt joints between the individual shell segments takes place in known casting molds of this type via quick-action clamps provided on one of the edge flanges to be connected and which engage on the respectively opposite edge flange. However, these known quick-release closures are not suitable for an automatic connection or solution of the edge flanges of the shell segments running along the butt joints.
    The invention is therefore based on the object for the outer shape of a casting mold for producing tubular precast concrete provide a clamping device, which can be actuated automatically and a release of the edge flanges to be joined, for example, to be able to dissolve shell segments of the outer shape.
    Starting from an outer shape of the type described above, the invention achieves the stated object in that the tensioning device has distributed over the length of the Sto߬fuge, one of the two edge flanges associated and acted upon by a tension drive tie rod, with at least one widened clamping head at least one outside attack on the opposite edge flange abutting pressure piece, which is displaceable from a gripped by the clamping head of the tie rod Verrie¬gelungsstellung in a release position for the clamping head.
    By providing one of the two edge flanges associated tie rods which engage with a widened clamping head on a pressure piece on the outside of the opposite edge flange, the two edge flanges can be held together clamped in the closed position of the outer mold with a corresponding application of the tie rods via a clamping drive. The Ver¬lagerung of the pressure piece from an overlapped by the clamping head of the tie rod locking position into a release position for the clamping head allows in a simple way a release, so that the two edge flanges can be solved from each other. It is merely necessary to ensure that the edge flange provided with the pressure piece can move freely past the clamping heads of the tie rods, which indeed belong to the other edge flange.
    The transfer of the clamping forces from the clamping heads on the edge flange with the pressure piece can be done in different ways. If a pressure element which is common to all tension anchors is used, then the pressure element can form a positioning strip which is displaceably mounted in the longitudinal direction of the butt joint, wherein the
    Zuganker the edge flange with the adjoining control bar in passage openings, which have a larger cross-section than the clamping heads, while the passage openings for the tie rods in the setting bar as slots with a widened portion for the clamping head passage and adjoining it in Stellrichtung the adjusting bar, narrower Section are formed for a marginal clamping head support. By providing tie rods which are supported on one of the two edge flanges and which pass through the other edge flange on the opposite side of the butt joint together with the adjusting strip adjoining this edge flange and are supported by a clamping head on this positioning strip, the edge flange can be fitted on the side of the Adjusting bar are clamped on the Zugan¬ker between the adjusting bar and the edge flange on the actuating bar gegenüber¬ lying joint side, when the tie rods are acted upon entsp¬de clamping drives. Since the adjusting strip for receiving the ZugankerLanglöcher having a widened portion for the clamping head passage and adjoining it in the direction of adjustment of the adjusting bar, narrower section for edge support of the clamping head of the tie rods can be exempted by adjusting the adjustment bar of the tie rod, so-that it can pass through the widened portion of the elongated holes of the adjusting bar and through the passage opening in the adjacent edge flange when the two edge flanges are pulled apart in the circumferential direction of the jacket. With the adjustment of the adjusting bar in the release position for the tie rod thus könnnen between a butt joint of the shell forming Randflanscheunbehindert be resolved from each other. Since the release of the tie rods and the connecting tensioning of the edge flanges depends on the displacement position of the actuating rod, such a tensioning device is advantageously suitable for automatic actuation.
    Another possibility of mutual tensioning of the two edge flange can be achieved in that each tie rod is assigned a separate pressure piece and that the pressure pieces can be displaced via a common actuating drive. The resolution of a common all tie rods control bar in ein¬zelne, each tie rod separately assigned thrust pieces allows a tensioning of the clamping device, without having to displace the plungers via an actuating drive, if the plungers sit on a common, extending in the longitudinal direction of the scarfing, spring-loaded in the locking shaft and on the side facing the butt joint have a contact surface for the clamping heads. When passing the clamping heads of the tie rods on the pressure pieces they are swung against the Federmo¬ment due to the intended contact surfaces, so that the clamping heads can be moved past the pressure pieces that pivot back after release by the clamping heads in the Verrie¬gelungsstellung to the bracing of the edge flanges to ensure over dienunmehr the pressure pieces cross clamping heads.
    The tension drives assigned to the individual tie rods can be designed differently. A simple construction results when the tie rods axially pass through the edge flange on the opposite side of the pressure piece or the pressure pieces and are supported against this edge flange by a tension spring as a tensioning drive. The clamping between the edge flanges to be connected is effected in this case by the tension springs for the individual tie rods, which makes the closed outer shape independent of any energy supply for the tensioning drives. The tension springs can beispiels¬weise be formed by a cup spring package. However, it is also possible to apply the spring forces via pistons, which are acted upon by a pressure accumulator.
    However, loosening these tensioning springs designed as tensioning springs by displacing the pressure piece or the pressure pieces is difficult because of the clamping forces that occur when the tension springs are not acted upon by the pressure pieces in the sense of lifting the tensioning head of the tension rods it is to connect the tie rods on pistons of opposite to the tension springs acted upon adjusting cylinders. To release the tensioning drives, therefore, the adjusting cylinders only need to be connected to a pressure medium source in order to displace the pistons in opposite directions to the spring loading of the tensioning anchors, whereby the tensioning heads of the tensioning anchors are lifted off the pressure piece (s) so that the pressure pieces are unloaded into the release position for the tie rods can.
    When the tensioning springs act on the pistons of the positioning cylinders connected to the tie rods, the result is a simple construction with positioning cylinders whose pistons are loaded on one side by the tensioning springs in the tensioning direction of the tie rods and on the opposite side can be acted upon by a pressure medium to release the tensioning force.
    The tensioning drives for the tie rods need by no means comprise tensioning springs. If the pressure piece formed as setting bar with the clamping heads of Zugan¬ker cooperating clamping wedges as clamping drives, so requires the Stellbewe¬gung the adjusting bar tensioning the tie rods or their solution on the Spannkeile by formed wedge gear, which creates particularly simple Konstruktionsbe¬ conditions because no additional drives to relieve the tensioning be required.
    In the drawing, the subject invention is shown, for example. It shows
    1 shows a mold for producing tubular precast concrete parts with an inventive outer jacket in a simplified side view,
    2 is a fragmentary view of the pressure piece guided longitudinally displaceably on an edge flange of the shell, as a positioning strip, in a simplified plan view on a larger scale,
    3 shows a section along the line III-III of FIG. 2,
    4 shows a representation corresponding to FIG. 3 of a construction variant of a tensioning drive, FIG.
    5 shows a further embodiment of a tension drive for the tie rods in a plan view of the setting bar on a larger scale,
    Fig. 6 is a section along the line Vl-Vl of Fig. 5 and
    7 shows a representation corresponding to FIG. 3 of a further design variant of a tensioning device according to the invention.
    According to FIG. 1, the casting mold for producing tubular precast concrete parts conventionally has a core and an outer shape enclosing the core with a radial spacing, whose shell 1 is composed of two shell segments 2 and 3. Along the lying in a diameter plane butt joints 4, the shell segments 2 and 3 are provided with edge flanges 5, 6, via which the Man¬telsegmente 2, 3 with the interposition of a seal 7 to the shell 1 of the outer mold are connected. This connection is made by means of a tensioning device which comprises tie rods 8 distributed over the length of the edge flanges 5, 6. The tie rods 8 are acted upon by tensioning drives 9, are supported on the one edge flange 5 and pass axially through the other edge flange 6 opposite the butt joint 4. However, the tie rods 8 are based not with their widened Spann¬ head 10 directly on the edge flange 6, but on a pressure piece 11ab, which forms a control bar 12 which abuts the edge flange 6 and against die¬sem edge flange 6 by means of an actuator 13, for example, an actuating cylinder, which is displaceable lengthwise. The adjusting bar 12 is provided in the region of the tie rods 8 with holes 14 having a widened portion 15 for the passage of the clamping head 10 and an adjoining thereto in the adjustment direction of the adjusting bar 12, narrower section 16 for a peripheral clamping head support. For example, in the clamping position illustrated in FIGS. 2 and 3, the tie rods 8 are in the region of the narrower slot portion 16 so that the tie rods 8 acted upon by the tensioning mechanisms 9 can be supported with their tensioning heads 10 on the slots 14 of the adjustment bar 12 and the edge flange 6 via the adjustment bar 12 is pulled against the edge flange 5, whereby the Man¬telsegmente 2 and 3 of the outer mold are held together clamped. To solve this connection, the adjusting bar 12 is moved over the adjusting drive 13 until the clamping heads 10 of the tie rods 8 reach the extended section 15 of the elongated holes 14. In this release position, the clamping heads 10 of Zugan¬ker 8 can pass through the slots 14 and through the passage openings 17 in the edge flange 6, which have a larger cross-section than the clamping heads 10. The two shell segments 2, 3 can then be detached from each other.
    The tensioning drives 9 can be designed differently. According to FIG. 3, the tensioning drives 9 comprise tensioning springs 18 in the form of a plate spring packet 19, which is supported on a piston 20 in an adjusting cylinder 21 connected to the edge flange 5. The tie rods 8 are screwed into the piston 20 and thus form piston rods, which are loaded by the tension springs 18 in the sense of tension. Dadas displacement of the adjusting bar 12 in the clamping state of the tensioning drives 9 is difficult because of the occurring friction forces, the piston 20 of the adjusting cylinder 21 against the spring force of the tension springs 18 are acted upon, via a pressure medium connection 22. The actuating cylinder 21 on the edge flange 5 are fluidly connected to each other, so for the connection of these actuating cylinder 21 to a pressure medium source only zubetätigen a corresponding clutch.
    Fig. 4 shows a tensioning drive 9, although also based on a tension spring, but this tension spring is formed by a pressure accumulator not shown for clarity reasons, via which the piston 20 of the actuating cylinder 21 are acted upon via a connection 23, so the tie rods 8, which pass through the Zylinder¬kopf 24, in turn, are resiliently acted upon in the clamping direction. The effect of the tensioning drives 9 with a pressure accumulator as tension spring remains the same. Of course, a common pressure accumulator can be used for all tensioning drives 9.
    In Figs. 5 and 6, another embodiment of a tensioning drive 9 for the tie rods 8 is shown. The adjusting bar 12 again forms a slot 14 with a widened portion 15 and a narrower portion 16, but the Randbe¬reiche the narrower portion 16 in the form of clamping wedges 25 which cooperate with the counter wedges 26 forming chuck 10 of the web-shaped tie rods 8. The tensile anchor 8, which is connected to the edge flange 5 in a manner that is tensile with the edge flange 5, is thus subjected to a tensile load by the displacement of the adjusting bar 12 from the illustrated release position via the wedge mechanism formed by the clamping wedges 25 and the counter wedges 26, which underlies the two edge flanges 5 and 6 Clamping the seal 7 clamped together and locked at the same time. To release this lock, the actuator 13 is to act against it in order to move the adjusting bar 12 from the clamping position again in diegezeichnet release position for the tie rods 8, so that the edge flanges 5 and 6 can be detached from each other.
    For the mutual guidance of the edge flanges 5 and 6 serve according to the Fig. 1 Füh¬rungsbolzen 27, which are arranged according to the embodiment on the edge flange 5 and engage in corresponding centering in the edge flange 6. These guide pin 27, the moving apart of the edge flanges. 5 and 6not hinder, enforce the control bar 12 in slots, which ensure the required for the locking and unlocking of the edge flanges 5, 6 adjustment for the control bar 12.
    As can be seen from FIG. 7, it is not necessary for the tie rods 8 to be assigned a common adjusting strip 2 in order to be able to use the advantages according to the invention. According to the exemplary embodiment according to FIG. 7, each tension anchor 8 is assigned a separate pressure piece 11 on the edge flange 6, the pressure pieces 11 sitting on a common shaft 28 extending in the longitudinal direction of the butt joint 4. The shaft 28 is acted upon by a prestressed torsion spring 29 in the locking direction of the clamping device, so that the Druckstü¬cke 11 rest on the outside of the edge flange 6 load-bearing. On the side facing the scarf joint 4, the pressure pieces 11 form an inclined contact surface 30 for the clamping heads 10 of the tie rods 8. Accordingly, when closing the jacket segments 2, 3 of the outer shape, the two edge flanges 5, 6 are brought together and the tensioning mechanisms 9 against the spring force Terminal 23 is acted upon by a pressure medium, the pressure pieces 11 are swung out by the clamping surfaces 10 sliding along the contact surfaces 30 until they are released again by the clamping heads 10 and pivot back into the locking position due to the torque load of the shaft 28. After a discharge of the piston 20 of the cylinder 21 by the pressure medium, the tie rods 8 are acted upon in the clamping direction and the two edge flanges 5 and 6 as shown in FIG. 7 braced against each other. To release this tension, the cylinder 21 is to be acted upon via the connection 23 with the pressure medium, whereby the clamping heads 10 of the tie rods 8 are lifted from the pressure pieces 11. The plungers 11 can therefore be pivoted against the force of the torsion spring 29 via a entsp¬den actuator for the shaft 28 in order to move the clamping heads 10 when loosening the edge flanges 5 and 6 on the swung-out pressure pieces 11 can.
    权利要求:
    Claims (8)
    [1]
    Claims 1. An outer mold of a mold for producing tubular precast concrete parts with a jacket (1) forming at least one axial joint (4), the edge flanges (5, 6) of which extend along the joint (4) being releasably connected by means of a clamping device, characterized in that the clamping device comprises the length of the joint (4) distributed, one of the two edge flanges (5, 6) and by a tensioning drive (9) acted upon Zuganker (8) acted upon with a widened clamping head (10) on at least one outside on the opposite edge flange (6) attacking pressure piece (11) attack, which from a Spann¬ head (10) of the tie rod (8) overlapped locking position in a release Stel¬ for the clamping head (10) is displaceable.
    [2]
    2. outer mold according to claim 1, characterized in that the pressure piece (11) forms a displaceable longitudinally in the longitudinal direction adjusting bar (12) andthat the tie rods (8) the edge flange (6) with the adjoining control bar (12) in Durchtrittsöffnungen (17) prevail, which have a larger cross-section than the clamping heads (10), while the passage openings (17) for the tie rods (8) in the adjusting bar (12) as elongated holes (14) with a widened portion (15) for the clamping head passage and a direction in the adjusting direction Adjusting bar (12) adjoining, narrower section (16) are formed for a peripheral clamping head support.
    [3]
    3. outer mold according to claim 1, characterized in that each tie rod (8) is associated with a separate pressure piece (11) and that the pressure pieces (11) via a common actuating drive are displaced.
    [4]
    4. outer mold according to claim 3, characterized in that the pressure pieces (11) on a common, in the longitudinal direction of the butt joint (4) extending, imVerriegelungssinn spring-loaded shaft (28) and sit on the butt joint (4) facing side of a contact surface (30 ) for the clamping heads (10).
    [5]
    5. Outer mold according to one of claims 1 to 4, characterized in that the tie rods (8) their associated edge flange (5) axially Verschiebbardurchsetzt and this edge flange (5) by a tension spring (18) as a tensioning drive (9) are supported.
    [6]
    6. outer mold according to claim 5, characterized in that the tie rods (8) on pistons (20) of opposite to the tension springs (18) act upon Stellzy¬lindern (21) are connected.
    [7]
    7. outer mold according to claim 6, characterized in that the Spannfe¬dern (18) act on the tie rods (8) connected to the piston (20) of the actuating cylinder (21).
    [8]
    8. outer mold according to claim 2, characterized in that the adjusting bar (12) with the clamping heads of the tie rods (8) cooperating clamping wedges (25) as tensioning drives (9).
    类似技术:
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    引用文献:
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    DE2337768A1|1973-07-25|1975-02-06|Dyckerhoff & Widmann Ag|Securing of clamp collar to concrete formwork - by turning rotatable retaining collar|
    DD214797A1|1983-04-27|1984-10-24|Th Leipzig Dfo Bfn|DEVICE FOR FIXING AND LOOSENING FORMING PARTS|
    DE4122567A1|1990-07-16|1992-01-23|Hiroshi Kitamura|MOLDING PIECE CLAMPING DEVICE WITH CLAMPING MECHANISM AND CONFIRMATION MECHANISM|
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    CN201432363Y|2009-06-15|2010-03-31|凌德祥|Locking device of prestressed concrete hollow pile mould|
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    US4725176A|1985-06-25|1988-02-16|Conn-Weld Industries, Inc.|Fluid actuated nut|
    JPH066285B2|1986-02-19|1994-01-26|株式会社小松製作所|Formwork loosening tool and formwork loosening device|
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    FR3087374B1|2018-10-22|2021-01-22|Saire|MOLD FOR CONCRETE CONSTRUCTION ELEMENTS|
    CN111015933B|2019-12-19|2021-01-26|正蓝旗上都镇蓝电电杆厂|Rapid demoulding treatment method after manufacturing and forming of cement electric pole|
    CN111877753B|2020-07-22|2021-12-14|中铁十局集团第二工程有限公司|Supporting and mounting equipment for concrete construction formwork|
    CN111844382B|2020-07-22|2021-08-06|王立新|Lever linkage type concrete formwork fixing mechanism|
    法律状态:
    2019-06-15| MM01| Lapse because of not paying annual fees|Effective date: 20181031 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50714/2013A|AT514938B1|2013-10-31|2013-10-31|External shape of a mold for producing tubular precast concrete parts|ATA50714/2013A| AT514938B1|2013-10-31|2013-10-31|External shape of a mold for producing tubular precast concrete parts|
    PCT/AT2014/050260| WO2015061823A2|2013-10-31|2014-10-30|Outer mold of a casting mold for producing tubular prefabricated concrete parts|
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