WO2007057096A1 - Dispositif pour produire des pieces moulees en beton - Google Patents

Dispositif pour produire des pieces moulees en beton Download PDF

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Publication number
WO2007057096A1
WO2007057096A1 PCT/EP2006/010331 EP2006010331W WO2007057096A1 WO 2007057096 A1 WO2007057096 A1 WO 2007057096A1 EP 2006010331 W EP2006010331 W EP 2006010331W WO 2007057096 A1 WO2007057096 A1 WO 2007057096A1
Authority
WO
WIPO (PCT)
Prior art keywords
mold
frame
vibrating table
mold frame
vibrating
Prior art date
Application number
PCT/EP2006/010331
Other languages
German (de)
English (en)
Inventor
Rudolf Braungardt
Holger Stichel
Original Assignee
Kobra Formen Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kobra Formen Gmbh filed Critical Kobra Formen Gmbh
Priority to EP06806563A priority Critical patent/EP1951488A1/fr
Publication of WO2007057096A1 publication Critical patent/WO2007057096A1/fr

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Classifications

    • 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
    • B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
    • B28B15/005—Machines using pallets co-operating with a bottomless mould; Feeding or discharging means for pallets
    • 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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/022—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form combined with vibrating or jolting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/022—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space whereby the material is subjected to vibrations

Definitions

  • the invention relates to a device for the production of concrete blocks by compacting a wet concrete amount.
  • the compacted, still moist but dimensionally stable concrete blocks are demolded from the mold cavities by raising the mold relative to the vibrating table and by means of the pressure plates vertically fixed with respect to the vibrating table, the concrete blocks are demoulded out through the lower openings.
  • US Pat. No. 6,352,236 B1 discloses a molding machine in which a mold is fastened to a spring steel plate held in the machine frame.
  • a vibrating table is vertically displaceable and pressed in an upper position by means of a supported on a foundation or a lower portion of the machine frame air spring assembly against the bottom of the mold, wherein the spring steel plate is elastically curved upward.
  • a vertical vibration stimulation is achieved by a multi-arm linkage, which is connected to upper end which is hinged to the shape and with lower ends of eccentric shafts. Rotation of the eccentric shafts causes the table to be oscillated downwards by the mold and pushed upwards by the air spring. To remove the air spring is lowered and the table moved together with the pressure plates of the Auflastvorraum down.
  • WO 01/47698 A1 it is proposed for a low-energy and low-noise vibrator excitation to suspend a vibrating table with a clamped shape and to induce oscillations which at least partially fall within the frequency range of the natural oscillations of the vibratory system with table and clamped form.
  • a plurality of rotating imbalance vibrators are provided, which are combined in pairs on rotating shafts.
  • a vibratory device for the production of concrete blocks is described, in which a form is provided on opposite sides with belt driven unbalanced shafts as Wilsonttelanregern.
  • a hydraulic cylinder pushes up the mold against air springs via a table with a damping intermediate layer and lifts the mold from a support surface of a machine frame.
  • the present invention has for its object to provide an advantageous device for the production of concrete blocks by compacting a concrete amount by stimulating Jottelmonyen.
  • the invention enables a particularly advantageous construction of a device for the production of concrete blocks.
  • the combination of the vertically relative to the machine frame in a substantially constant position mold frame with the vertical tension of the pad against the mold frame during the Studttelvorgangs allows an advantageous operation of the device.
  • the clamping means are advantageously automatically tensioned and detachable and solved in the vertical V flesh the pad.
  • the clamping means advantageously act directly between the mold frame and vibrating table and clamp the preferably replaceable shape with the individual mold cavity structure between the mold frame and the vibrating table.
  • the traversing devices for the vertical movement of the vibrating table directly connect the forming frame to the vibrating table and are advantageously vertical to the forming frame. supports.
  • the displacement devices can be formed in particular by a plurality of pressure-medium-actuated cylinders, preferably hydraulic cylinders.
  • the traversing devices can serve in an advantageous development at the same time as a clamping means in the upper position of the vertically movable vibrating table.
  • the displacement devices for this purpose can be designed as lockable pressure cylinder, which can be locked at least in the upper position of the vibrating table.
  • the traversing devices are advantageously arranged on two opposite sides of a substantially rectangular shaped frame.
  • the vertical clamping of the vibrating table against the mold frame can be done alternatively or in addition to the tension by the displacement by separate clamping means between the mold frame and vibrating table.
  • First clamping elements on the side of the mold frame and second clamping elements on the side of the vibrating table are for this purpose at least in the upper position of the vibrating table, with interchangeable mold inserts of different height advantageously in the upper position of the vibrating table in the mold insert with the greatest height, in mutual engagement, but can in be out of engagement with lower positions.
  • the separate clamping means can advantageously also be provided on one side of the mold frame, which points in a direction of the lateral removal of the compacted concrete blocks from the lowered vibrating table.
  • the mold cavities are formed in a mold insert, which is held interchangeable in the molding machine remaining in this mold frame.
  • different interchangeable mold inserts in particular also different heights of the mold cavities between see have an upper and a lower boundary plane of the mold insert.
  • the interchangeable mold inserts are uniformly used in the mold frame so that the upper boundary plane for all mold inserts in the same vertical position with respect to the mold frame and thus also the machine frame.
  • the vertical position of the lower boundary planes of the mold inserts, against which the vibrating table rests for the filling process and the vibration process, can thus vary depending on the height of the mold insert.
  • the upper position of the vertically movable vibrating table and the vertical V composite are then also dependent on the height of the respective mold insert.
  • the lower position of Rüttelti- is selected for the removal of the compacted concrete blocks in a lateral removal direction for different levels of mold inserts the same and aligned with the mold insert with the highest height.
  • the vertical travel of the vibrating table then becomes the longest for the smallest height mold insert.
  • the uniform vertical position of the upper boundary plane is for a Grewagenanssen, the uniform lower position of the vibrating table for a conveyor for removing the compacted concrete blocks on a board of particular advantage.
  • the lower position of the vibrating table is selected depending on the height of the respective mold insert to the travel and thus the travel time when lowering the vibrating table during demolding of the compacted concrete blocks and when restarting the vibrating table against the Lower underside of the mold insert to keep low.
  • the lower position is then higher for low height mold inserts than for larger height mold inserts. Any necessary adaptation to a fixed level of a transport facility tion can take place outside the area of the vibrating table in an intermediate station.
  • first clamping elements of the clamping means can be arranged on the side of the mold frame on a mold frame side in removal of the concrete blocks and advantageously designed uniformly for mold inserts of different heights.
  • the first clamping elements extend in particular so far from the mold frame down that on the one hand mold engagement of the highest height still engaging the second clamping elements on the side of the vibrating table in its upper position, on the other hand in the lower position of the vibrating table removal of the high concrete blocks is possible in the removal direction under the first clamping elements.
  • first and second clamping elements assume a different relative vertical position during the tensioning of the vibrating table in its upper position.
  • the first clamping elements are advantageously bolts, which are clamped in clamping cylinders in variable longitudinal position.
  • the first tensioning means may comprise tensioning elements of different types, e.g. hydraulic lifting cylinders and clamping bolts in tensioning cylinders, and / or different arrangements, e.g. On longitudinal strips and / or transverse strips of the mold frame, we also included combined.
  • the vibrating table advantageously has a lightweight construction below the table support plane, in particular in the manner of a truss structure made of rods, in order to achieve high stability and in particular high rigidity for uniform transmission of vibrating movements over the entire bearing surface at low weight.
  • the vibrating table is advantageously largely decoupled, at least in its upper position from the machine frame with respect to the transmission of shaking movements.
  • a centering of the vibrating table in the horizontal direction in the machine frame advantageously takes place via damping elements, preferably contactlessly via magnet arrangements.
  • the mold frame can be decoupled in an advantageous embodiment in the horizontal direction with respect to horizontal Hinttelgraphyen of the machine frame or at least attenuated and horizontally horizontal Trottelbewegun- gene of the mold frame slightly permitting and horizontal accelerations only attenuated on the machine frame transmitting damping elements, in particular also touchless magnet arrangements be.
  • the mold frame can be supported vertically in an advantageous embodiment on the machine frame or a foundation, wherein the support can also be given with an inclined direction of force.
  • the support can also be given with an inclined direction of force.
  • a foundation can be damped against the environment to isolate vibrations, in particular noise reduction.
  • the support elements can be adjusted to independent of the supporting total weight a uniform vertical rest position, around to adjust the vertical shaking movements of the mold frame.
  • an excitation of vertical shaking movements of the vibrating table can also be effected indirectly by the fact that the vibrating means act primarily on the mold frame and stimulate it to vertical vibrating movements, which are implemented via the vertical tension of the vibrating table against the mold frame by the clamping means in Studttelmonyen the vibrating table become.
  • excitation of vertical shaking movements of the mold frame can in turn be effected by imbalance shakers acting on the mold frame.
  • an excitation of vertical shaking movements of the mold frame by vertically supported against the mold frame Studttelein- directions, through which high acceleration in the Schwarztel Gayen can be achieved in a small footprint and low weight.
  • the supported on the mold frame vibrating devices can be advantageously combined with support elements in the form of damping elements and / or spring elements between the machine frame and mold frame by z.
  • the support elements to absorb static forces of the mold frame on the mounting frame in a vertical rest position and stimulate the vibrators Studttelioloen as deflections from this rest position.
  • the vibrators may be limited in an advantageous embodiment to the generation of upward acceleration forces on the mold frame, wherein resetting Forces can be applied by the weight of the mold with vibrating table and concrete amount, by downward forces of a Auflastvorraum or by the deflection of the mold frame upwardly stretched elastic elements.
  • the vibrators can contain hydraulically actuated actuators in an advantageous embodiment.
  • actuators may contain, for example, piezoactuators, nanoporous metals, magnet actuators, fluid-actuated contracting tube actuators (fluid muscle). Different types of actuators can be combined.
  • the vibrator devices are advantageously arranged at least on two opposite sides of the mold frame, but may also be provided on all four sides of a substantially rectangular mold frame.
  • FIG. 1 shows a first embodiment of a molding machine
  • FIG. 2 shows a mold frame from FIG. 1,
  • FIG. 3 shows the underside of the mold frame according to FIG. 2, FIG.
  • FIG. 4 shows a detail from FIG. 3,
  • FIG. 6 shows a high mold insert
  • 7 shows a detail from FIG. 6,
  • FIG. 8 shows a loading device for the mold insert according to FIG. 6, FIG.
  • FIG. 9 shows the molding machine according to FIG. 1 with a mold insert according to FIG. 6 and a loading device according to FIG. 8, FIG.
  • FIG. 11 shows the molding machine according to FIG. 10 with lowered preload
  • FIG. 12 is a sectional front view of FIG. 11,
  • FIG. 13 is a detail of FIG. 12,
  • FIG. 14 shows the molding machine according to FIG. 11 after demoulding the compacted concrete blocks
  • FIG. 15 is a sectional front view of FIG. 14,
  • FIG. 16 is a detail of FIG. 15,
  • FIG. 17 shows the molding machine according to FIG. 15 during the removal of the concrete blocks
  • Fig. 21 is a molding machine with Auflastvortechnik of FIG. 20 and
  • FIG. 23 shows a detail from FIG. 22, FIG.
  • FIG. 24 shows the molding machine according to FIG. 22 with demoulded concrete shaped blocks
  • FIG. 25 shows a detail of FIG. 24, FIG.
  • Fig. 26 is a molding machine corresponding to FIG. 1 with additional
  • Fig. 27 an alternative support of a vibrating device at
  • FIG. 28 is a front view of FIG. 27,
  • FIG. 29 is a side view of FIG. 27,
  • FIG. 30 shows the molding machine according to FIG. 27 with the vibrating table in the upper position, FIG.
  • FIG. 31 is a front view of FIG. 30,
  • FIG. 32 is a side view of FIG. 30,
  • FIG. 34 is a front view of FIG. 33; FIG.
  • FIG. 35 is a side view of FIG. 33
  • FIG. 36 is a bottom view of FIG. 33; FIG.
  • FIG. 37 shows a variant of FIG. 33.
  • FIG. 38 shows a view corresponding to FIG. 36 to the variant according to FIG. 37
  • FIG. 39 shows a forming machine with vibrating devices on the vibrating table
  • Fig. 41 is a molding machine with additional clamping means between
  • FIG. 42 is an enlarged front view of FIG. 41;
  • FIG. FIG. 43 shows the view according to FIG. 42 with the vibrating table in the upper position, FIG.
  • FIG. 44 shows a view analogous to FIG. 43 in the case of a low-height mold insert
  • FIG. 46 shows an advantageous line system for supply lines to hydraulic actuators
  • FIG. 47 shows an enlarged detail of FIG. 46
  • FIG. 48 shows the branched line system according to FIG. 4.
  • Fig. 1 shows an oblique view of a section of a molding machine.
  • a machine frame is schematically drawn in the form of an upper frame part RO, a lower frame part RU and a plurality of vertical guides VF and vertical support posts SP.
  • the machine frame is stably supported on a foundation with its lower frame part RU.
  • the sketch is therefore to be regarded as merely schematically simplified.
  • a right-angled xyz coordinate system with a vertical z-axis and x and y axes is drawn parallel to bars of a shape frame.
  • the forming machine in Fig. 1 is provided for the interchangeable receiving different mold inserts in a receptacle FEA for such mold inserts in a mold frame.
  • the mold frame and the receptacle FEA are in the usual way substantially rectangular.
  • the mold frame in particular contains two longitudinal strips FRL in the x-direction and two in the y-direction Cross bars FRQ.
  • the longitudinal strips and transverse strips form a stable shape frame, which can also be made in one piece.
  • connection body AK for a load-bearing device which is tuned to the respective mold insert used in the receptacle FEA, is guided so as to be vertically movable via load-bearing guide devices VFA along the vertical guides VF.
  • Means for moving the ballast connection body AK are not shown for clarity. In a particular embodiment, such displacement devices can also be realized by corresponding magnet arrangements in the guide elements VFA and the vertical guides VF.
  • the mold frame with longitudinal strips FRL and FRQ crossbars is supported with the interposition of Studttelaktuatoren RA on vertical posts SP against the lower frame portion of the machine frame or the foundation.
  • the mold frame is horizontally centered by guide elements VFR in the machine frame.
  • the guide elements VFR are designed so that the mold frame can perform excited vertical shaking movements by the vibration actuators RA.
  • the guide elements VFR in their interaction with the vertical guides are designed so that they also allow slight horizontal shaking movements of the mold frame, which typically can occur even with only vertical Hinttelanregung, and this is a strong damping of the horizontal accelerations of the mold frame during such horizontal Hinttelioloen cause the machine frame.
  • the mold frame for example, during a filling or during the actual shaking, also targeted to horizontal shaking can be excited.
  • additional, not shown horizontal vibrators may be connected to the mold frame, which may for example be designed as conventional Unwuchtrüttler, but which also in an advantageous Further development can be carried out by magnet arrangements which can be excited with a vibration frequency between the machine frame and the form frame, for example via the guide elements VFR.
  • Guide rails WF for a filling carriage arrangement and in the direction of travel of the filling carriage connection plates FB are connected to the form frame in a conventional manner.
  • a vibrating table RT is connected to the forming frame via traversing devices and can be moved vertically relative to the forming frame which is located in a fixed vertical position apart from the vertical vibrating movements.
  • the vibrating table may be guided along the vertical guides VF during the vertical travel by further guide elements VFT and centered within the machine frame.
  • the guidance of Tarlastvorraum and vibrating table in the vertical V composite can also be given by other, in particular for the individual assemblies separate guides, which may also be effective only for a part of the travel. Variants for this are known from the prior art.
  • a stone board SB is arranged in a conventional manner, which may usually consist of wood or plastic, more rarely also of a metal sheet, and receives the demolded compacted concrete blocks and is removed together with them from the molding machine.
  • the vibrating table RT is in the view of FIG. 1 in a lower position with a newly inserted empty stone board SB.
  • the vibrating table can advantageously also serve to insert a mold insert from below into the receptacle FEA of the mold frame and bring it vertically into clamping position against the mold frame.
  • the traversing devices for the vertical movement of the vibrating table are designed in an advantageous embodiment as hydraulically actuated cylinders. The traversing devices advantageously directly connect the forming frame and the vibrating table.
  • the traversing devices are supported in the example shown with the cylinder portion VEZ on the longitudinal strips FRL of the mold frame and protrude with stamping rods VES of the mold frame down to the vibrating table, with which they are connected at joints VRT.
  • the stamping rods VES of the displacement devices can be selectively moved in and out vertically by controlled admission of the cylinder units VEZ with hydraulic fluid.
  • On the lower sides of the longitudinal strips FRL of the mold frame bar guides VER are arranged, which may be formed in an advantageous development for locking the traversing devices.
  • a locking of the displacement devices is particularly advantageous in an upper position of the vibrating table, in which it is braced against the Formrah- and the bottom of a mold insert.
  • a mold frame is isolated in perspective as shown in Fig. 1. Holes LES for the passage of the stamping rods of the traversing devices are visible in the longitudinal strips VRL.
  • Fig. 3 shows the mold frame of Fig. 2 in a rotated view with the bottom up.
  • Fig. 4 shows a detail IV of Fig. 3.
  • FRL shots RAA are provided for the Rüttelaktuatoren RA.
  • a circumferential inwardly projecting step RST is formed on the inner walls of the longitudinal and transverse strips, against which a mold insert inserted into the receptacle FEA pushes upward and clamps vertically against the mold frame and in a defined vertical manner Position is held.
  • the step RST can also serve for the horizontal centering of a mold insert in the mold frame.
  • holding structures HSR can be provided on the mold insert, which according to the enlarged detail in FIG. 4, for example a recess ZSR in the edge region of the mold frame and openings HOR for holding elements which are not marked Prevent mold insert from the mold frame with lowered vibrating table may include.
  • FIG. 5 an example of a vibrating table RT in lightweight construction in the manner of a truss structure of interconnected, in particular welded bars or grids is sketched.
  • Support strips TAL form an upper boundary surface of the vibrating table, which form a supporting plane for a stone board SB.
  • connection points VRT At lateral edge regions in the y-direction opposite are provided connection points VRT to the stamping rods VES of the travel devices.
  • the lightweight design of the vibrating table in the manner of a truss construction ensures high stability and in particular a high rigidity of the vibrating table and a uniform transmission of the vibratory forces introduced directly into the vibrating table or from the mold frame via the connection points VRT with low weight.
  • Low own weight is of particular advantage in order to transfer the highest possible proportion of the supplied vibrating power into a shaking movement of the concrete amount in the mold cavity of the mold insert.
  • FIG. 6 is an oblique view from above a mold insert FEH outlined with several mold cavities FNH, for which a large, in the molding machine maximum allowable height HFE of the mold cavities was selected.
  • a circumferential step EST is formed on the mold insert, which is shaped to be complementary to the step RST on the mold frame.
  • Holding structures HSE are complementary to the Holding structures HSR of the mold frame and may in particular contain vertical projections ZSE, which engage in the recess ZSR on the mold frame, and openings HOE 1 which are aligned in the mold frame inserted mold insert with the openings HOR of the mold insert and the horizontal insertion not shown holding elements, such as sliders , enable.
  • Fig. 8 a the mold insert according to Fig. 6 associated Auflastvoriques is schematically outlined, which has a connection plate AP for connection to the connection body AK on the part of the molding machine, and from the connection plate AP pointing down a plurality of stamp tubes STH, at the lower ends of printing plates DPH are attached.
  • the pressure plates DPH are contoured to the contours of the mold cavities FNH of the mold insert FEH and have a slight undersize on all sides.
  • the pressure plates DPH are typically interchangeably attached to screw plates, which in turn are usually attached to the punch tubes welded.
  • FIG. 9 shows a detail of a molding machine corresponding to FIG. 1, in which case the mold insert FEH is inserted into the mold frame and held therein by the non-visible holding structures HSR, HSE.
  • the loading device according to FIG. 8 is fastened to the connection body AK and can be moved vertically therewith.
  • the vibrating table RT is in a lower position with a newly inserted stone board SB.
  • the vibrating table RT is moved vertically upwards with the stone board SB at the beginning of a production cycle and pressed with the stone board against the underside of the mold insert FEH, which thereby its edge stage EST is pressed vertically upwards against the complementary stage RST of the mold frame. In this upper position of the vibrating table the vibrating table RT is clamped against the mold frame.
  • the traversing means can be acted upon and held with a sufficiently high pressure of the hydraulic fluid.
  • the stamp rods can be fixed in their position assumed thereby on the mold frame via the locking devices VER.
  • Such locks of hydraulic cylinders are known per se from other applications of hydraulic cylinders.
  • the locking of the displacement devices by means of the locking devices VER in the upper position of the vibrating table may be provided in addition to the clamping force of the displacement devices used as clamping means and for this purpose acted upon by hydraulic fluid under high pressure.
  • the clamping of the vibrating table vertically against the mold frame can be done only by the locking means VER and the pressure of the hydraulic fluid can be lowered, so that the vertical clamping force alone or at least predominantly maintained by the locking means VER.
  • the loading device In the position sketched in FIG. 10, the loading device is still in the raised position and the mold cavities of the mold insert can be filled with a moist concrete amount by means of a filling carriage guided along the guides WF in the x direction.
  • the load device After filling the mold insert with wet concrete amount and driving back of the filling carriage, the load device is moved down and the pressure plates DPH of the loader are inserted into the upper openings of the mold cavities FNH and press on the surface of the concrete amount.
  • the molding machine at this stage of a production cycle is sketched in FIG. 11 in an oblique view corresponding to FIG. 10 and in FIG. 12 in a cut front view with a viewing direction in the x-direction.
  • Fig. 13 shows an enlarged detail XIII of FIG. 12, from which in particular also for vertical support of the mold insert with the stage EST at the complementary stage RST of the mold frame is visible.
  • the upper boundary plane OEH of the mold insert is vertically flush with the horizontal sheet metal leg of the guide rail WF and the connecting plates FB.
  • the loading device is moved only so far down that the pressure plates are laterally still guided in the mold cavities, as shown in Fig. 15 and the enlarged section XVI of Fig. 15 in Fig. 16 can be seen.
  • the vibrating table is moved further downwards, so that the upper side of the compacted concrete blocks BSH have a vertical distance to the lower sides of the pressure plates DPH.
  • the stone board SB with the compacted concrete shaped bricks can be removed from the machine in the x-direction, as in FIG. 17 outlined.
  • the Auflastvoriques is moved back in Fig. 17 in its upper position. After inserting a new stone board, the next production cycle can begin.
  • a mold insert FEL is lower in an inverted position, in particular z. B. the lowest allowable in the molding machine height LFE the mold cavities FNL.
  • the mold insert has, in the same way as the mold insert FEH according to FIG. 6, a circumferential edge step EST in complementary form to the edge step RST of the mold frame and holding structures HSL with a projection ZSE and an opening HOE in the edge region of the step EST, in particular in FIG the enlarged section XIX of FIG. 18 of FIG. 19 can be seen.
  • FIG. 20 shows a loading device belonging to the mold insert FEL according to FIG. 18 with connection plate AP, stamping tubes STL and printing plates DPL. Because of the small height of the mold cavities FNL STL have a correspondingly short length.
  • Fig. 21 shows a section of a molding machine according to Fig. 10 with the mold insert used in the receptacle of the mold frame FEL low height and attached to the connector body AK corresponding Auflast observed.
  • the connection body AK can be lower in the raised position compared with the position according to FIG. 10, since the length of the stamp tubes of the loading device is lower in this case and the vertical position of the load body or the pressure plates DPL sketched in FIG. 21 is sufficient for the filling the mold nest with a filling cart.
  • Fig. 21 is again outlined the starting position for a production cycle.
  • FIG. 22 is a sectional view of the molding machine of FIG. 21 is shown in FIG. 12 outlined.
  • FIG. 23 shows an enlarged detail from FIG. 22.
  • the travel distance of the vibrating table from the lower position is substantially greater.
  • the vibrating table is lowered only to the extent required for demoulding and removing the compacted concrete blocks, so that the vibrating table is moved less far downwards for mold inserts of lesser height, thereby reducing the traveling time.
  • the concrete blocks are thereby removed in dependent on the height of the mold insert height position of the vibrating table. If a subsequent transport device provides a fixed removal height position, an adjustment of the height Positions take place in an intermediate station outside the range of Rüttelticians, without affecting the cycle time of the concrete molding machine is adversely affected.
  • the vibrating table is advantageously dimensioned in its transverse dimensions so that it can be inserted in a mold insert low height between the longitudinal and transverse edges of the mold frame upwards, d. H. that the lower boundary plane UEL of the mold insert FEL least height above the lower edges of the mold frame and the lowest height of a mold insert can be very small.
  • the upper boundary plane OEL of the mold insert FEL is in turn flush with the horizontal leg of the guide rail WF and the connecting plates FB.
  • the vertical position of the upper boundary plane is advantageously the same for all mold inserts relative to the mold frame.
  • the shaking process with excitation of the vibrating table can be started to vertical shaking movements via primary excitation of the mold frame by the vibrating actuators RA.
  • the vibrating actuators RA After completion of the shaking and compacting the concrete BG to form-stable concrete form BSL small height they are removed again by jointly moving the loading device and vibrating table down and further process the vibrating table in its lower starting position and positioned to remove the stone board with the concrete blocks BSL, as outlined in Fig. 24.
  • the enlarged detail XXV from fig. 24 in FIG. 25 shows the position of the printing plates DPL in the lower position of the demoulding process, in which the printing plates DPL are still guided laterally in the mold star FNL.
  • two cross members QT extending horizontally in the y direction are additionally shown spaced apart in the x direction between mutually opposite vertical guides, which can bring about a stabilization of the machine frame.
  • the cross member QT are arranged in such minimum height that the concrete blocks BSH maximum occurring height, which are indicated in Fig. 24 with a broken line, can be easily removed in the removal direction x from the machine.
  • a molding machine is outlined in Fig. 1 corresponding view, in which the described cross member QT are used for vertical support of further Rüttelanreger RAQ, which acts on the transverse strips FLQ or as outlined on extensions SRQ of the transverse edges FLQ of the mold frame.
  • FIG. 27 an embodiment of a molding machine is outlined in which the essential difference from the structures described above is that the vertical guides VFL are not continued to the foundation, but foundations, in particular made of concrete, projecting from a bottom surface BO upwards and the vertical guides VFL are supported on foundation supports VFU, the vibrating actuators RA are supported on separate foundation supports SFU.
  • separate foundations FUM for supporting the mold frame with vibrating table on the one hand and FUS for supporting the vertical guide and the rest of the machine frame on the other hand can be provided for the vertical guides on the one hand and for the mold frame on the other hand.
  • Fig. 28 is a front view and Fig. 29 is a side view of the arrangement of Fig. 27.
  • Figs. 30, 31 and 32 respectively show an oblique view, a front view, for this arrangement and a side view with raised to the upper position mold frame.
  • the Auflastvorraum is not shown for the sake of clarity.
  • a further advantageous embodiment of a molding machine is outlined in an oblique view, in which on the vertical posts SP deformable elements SEE are provided, which longitudinal strips support FRL of the mold frame elastically.
  • Studttelaktuatoren RAQ are vertically supported on a cross member QT between opposing vertical guides and act on projections SRQ of the transverse bars FRQ of the mold frame shaking movements stimulating on the mold frame.
  • the mold frame is again connected via moving devices with cylinders VEZ and stamping rods VES with a vertically movable vibrating table RT.
  • the support elements SEE are advantageously elastically deformable and can in particular absorb the static load of the mold frame including filled concrete amount and possibly Auflastkraft, so that on the Rüttelaktuatoren only shaking forces to excite vertical shaking movements of the mold frame are applied to a vertical rest position or from a lower rest position have to.
  • these can also be provided for an elastic tensile stress as restoring force with vertical deflection of the mold frame upwards. It can also be provided at the form frame from the rest position upwardly deflected form frame additional spring elements for generating force components on the mold frame.
  • Fig. 34 is a front view
  • Fig. 35 is a side view of the arrangement of Fig. 33. In Fig.
  • FIG. 36 is a vertical view corresponding to a sectional plane XXXVI- XXXVI sketched by Fig. 34 and Fig. 35.
  • Studttelaktuatoren RA and / or preferably supporting elements SEE can be adjusted in height according to a development in order to achieve identical relative output heights of the mold frame for all static loads. It is especially advantageous to be able to specify or specify a defined starting position for the vibrating actuators by means of variably adjustable support elements SEE, in particular in the case of actuators supported on fixed abutments, such as the support posts SP, which generate thrust forces away from the abutments as shaking forces.
  • variably adjustable support elements advantageously adjustable fluid spring elements, in particular air spring elements may be used, which can be acted upon for a height-adjustable adjustment with different pressure of the fluid.
  • FIG. 37 shows a particularly advantageous embodiment in a slight modification of FIG. 33, in that support elements SEE are provided at the location of the vibrating actuators RAQ along the transverse sides of the mold frame, and instead of the support elements according to FIG. 33 now Studttelaktuatoren RAL are arranged as shown in Fig. 1.
  • FIG. 38 shows, in a manner corresponding to FIG. 36, a vertical view of a horizontal sectional plane through an arrangement according to FIG. 37.
  • Fig. 39 shows an advantageous embodiment in which a Rüttelanregung the vibrating table does not take place via a primary excitation of the mold frame, but via directly acting on the vibrating table Studttelaktuatoren RAT.
  • the Studttelaktuatoren RAT are in this case preferably unbalance vibrators with rotating or with linearly oscillating moving imbalance masses.
  • the vibrating table shown in FIG. 39 in the lower position without a stone board is moved upwards in the manner already described with the mold insert inserted on the mold frame and via clamping means, in particular the clamping device. driving devices braced against the mold frame.
  • driving devices braced against the mold frame.
  • vertical shaking movements Upon excitation of the vibrating table to vertical shaking movements, these are transferred to the concrete amount in the mold cavities of the mold insert and also on the mold frame.
  • support elements SED for vertical support of the mold frame against the machine frame are implemented as vertical accelerations of the mold frame in a strongly damped manner on the machine frame.
  • Fig. 40 shows an enlarged example of an advantageous example of a vibrating table with integrated Trottelaktuatoren RAT, which can be integrated in particular tion in the truss structure.
  • the Rüttelaktuatoren RAT can be actuated in particular magnetically or hydraulically.
  • the design of the Schwarzttelaktuatoren RAT of FIG. 40 preferably provides vertically oscillating moving imbalance masses.
  • Fig. 41 and enlarged in Fig. 42 an embodiment of a molding machine is sketched, in which separate clamping means are provided for vertical clamping of the vibrating table against the mold frame.
  • the tensioning means may preferably act in addition to the tensioning by the displacement devices.
  • the clamping means are arranged for this purpose on the transverse strips FRQ of the mold frame.
  • the clamping means comprise fixed to the transverse edges FRQ of the mold frame and of these downwardly projecting clamping bolts SPB, which are not in engagement with counter-clamping elements, for example clamping cylinders SZT on vibrating table RT in sketched in Fig. 41 and Fig. 42 lower position of the vibrating table ,
  • the clamping bolts as the frame-side first clamping elements protrude only so far down that ready-compressed concrete blocks BSH ma- Ximaler height in removal direction X can be removed without hindrance under the lower ends of the clamping bolt through.
  • FIG. 43 shows a bracing situation for a mold insert FEH with a small engagement depth of the clamping cylinders SZT in the clamping bolts SPB
  • FIG. 44 shows a clamping situation for a low height mold insert with a large engagement depth of the clamping cylinders SZT in the clamping bolts SPB.
  • the clamping means as such are known per se.
  • Additional tensioning means for the displacement devices or tensioning means can also be provided on the longitudinal strips FRL of the form frame.
  • first clamping elements on the side of the mold frame and second clamping elements on the side of the vibrating table can also be engaged in all height positions of the vibrating table, that is to say also in its lower position.
  • the clamping means of shortened length according to FIGS. 41 to 44 can advantageously also be attached to sides of the frame in the removal direction.
  • FIG. 45 shows, in a view obliquely from above, a molding machine in which a conventional hydraulic vertical displacement of the load body AKH is shown. one (or more) hydraulic cylinder HZA above the ballast takes place. Otherwise, the molding machine corresponds to the embodiment according to FIG. 1.
  • Fig. 46 is a particularly advantageous embodiment of a system of hydraulic supply lines to vertical support posts SP, z.
  • the supply lines are advantageously designed as channels VL1, VL2 in the vertical support post SP.
  • other lines of the branched pipe system are realized as channels in frame parts of the machine frame.
  • lower frame parts RUL in the longitudinal direction x and RUQ in the transverse direction y are provided in a lower region of a machine frame.
  • the vertical support posts and preferably further vertical frame parts of the machine frame, in particular the vertical guides VF, are stably vertically supported on the lower frame parts.
  • a first and a second piping connection HA1 and HA2 are provided for connection to a fluid source and fluid sink of a conventional hydraulic system.
  • two line subsystems in a branched form lead to the plurality of actuators RA at the upper ends of the vertical support posts SP.
  • a first partial line system starting from the hydraulic connection HA1, contains a horizontal transverse channel QL1 through the transversely extending lower frame part RUQ, branching off horizontal longitudinal channels LL1 in the opposite, extending in the longitudinal direction x further frame parts RUL and turn branching off vertical channels VL1 in the vertical support post SP.
  • the second part of Line system from the second port HA2 a horizontal cross channel QL2 in RUQ, horizontal longitudinal channels LL2 in RUL and vertical channels VL2 in SP.
  • the channels may preferably be designed as bores in the respective frame parts.
  • the holes are made for production reasons to an outer surface and sealed with blind plug BS.
  • conduit system as channels in the frame parts on the one hand provides reliable protection of the conduit system against mechanical effects and on the other hand leads to a conduit system, which can be advantageously considered to be largely inelastic rigid.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

La présente invention concerne des superstructures avantageuses de machines à mouler destinées à un dispositif conçu pour produire des pièces moulées en béton. Selon cette invention, une carcasse de moulage conçue pour recevoir différents inserts de moulage amovibles est placée verticalement dans la machine à mouler de façon approximativement constante. Une table vibrante qui peut se déplacer verticalement par rapport à la carcasse de moulage peut être mise sous tension contre la carcasse de moulage. Cette invention décrit aussi différents types d'excitation par vibration et de support de la carcasse de moulage sur le bâti de la machine ou sur une fondation.
PCT/EP2006/010331 2005-11-18 2006-10-26 Dispositif pour produire des pieces moulees en beton WO2007057096A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06806563A EP1951488A1 (fr) 2005-11-18 2006-10-26 Dispositif pour produire des pieces moulees en beton

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DE200510054992 DE102005054992A1 (de) 2005-11-18 2005-11-18 Vorrichtung zur Herstellung von Betonformsteinen
DE102005054992.6 2005-11-18

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
WO2008040613A1 (fr) * 2006-10-07 2008-04-10 Kobra Formen Gmbh Dispositif actionneur produisant des vibrations
WO2008040610A2 (fr) * 2006-10-07 2008-04-10 Kobra Formen Gmbh Dispositif de fabrication à la machine de blocs moulés en béton et dispositif de vibrage convenant dans ce but
CN111220436A (zh) * 2020-01-20 2020-06-02 长安大学 一种可拆卸的混凝土试件振动成型和脱模一体设备
CN111751069A (zh) * 2020-06-29 2020-10-09 中国建筑第八工程局有限公司 用于振动台竖向作动器埋件面板的安装装置及安装方法
CN114474306A (zh) * 2022-03-14 2022-05-13 保利长大工程有限公司 一种无人工振捣的大型预制构件整体式振动台

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FR2640184A1 (fr) * 1988-12-08 1990-06-15 Trudu Jean Paul Dispositif pour la fabrication, par moulage et compression d'un materiau, d'elements de construction prefabriques, tels que parpaings, hourdis, conduits de cheminees, paves ou dalles
US5183616A (en) * 1989-11-07 1993-02-02 Hedrick Concrete Products Corp. Method for making antiqued concrete cored bricks and capping bricks
EP0730936A1 (fr) * 1995-03-08 1996-09-11 KOBRA FORMEN-UND ANLAGENBAU GmbH Moule pour presse à vibrations

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JPS5424922A (en) * 1977-07-26 1979-02-24 Katsura Kikai Seisakushiyo Kk Vibration equipment for concrete block molding machine
US5807591A (en) * 1994-07-28 1998-09-15 Columbia Machine, Inc. Method and apparatus for forming concrete products

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Publication number Priority date Publication date Assignee Title
FR2640184A1 (fr) * 1988-12-08 1990-06-15 Trudu Jean Paul Dispositif pour la fabrication, par moulage et compression d'un materiau, d'elements de construction prefabriques, tels que parpaings, hourdis, conduits de cheminees, paves ou dalles
US5183616A (en) * 1989-11-07 1993-02-02 Hedrick Concrete Products Corp. Method for making antiqued concrete cored bricks and capping bricks
EP0730936A1 (fr) * 1995-03-08 1996-09-11 KOBRA FORMEN-UND ANLAGENBAU GmbH Moule pour presse à vibrations

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008040613A1 (fr) * 2006-10-07 2008-04-10 Kobra Formen Gmbh Dispositif actionneur produisant des vibrations
WO2008040610A2 (fr) * 2006-10-07 2008-04-10 Kobra Formen Gmbh Dispositif de fabrication à la machine de blocs moulés en béton et dispositif de vibrage convenant dans ce but
WO2008040610A3 (fr) * 2006-10-07 2008-06-05 Kobra Formen Gmbh Dispositif de fabrication à la machine de blocs moulés en béton et dispositif de vibrage convenant dans ce but
CN111220436A (zh) * 2020-01-20 2020-06-02 长安大学 一种可拆卸的混凝土试件振动成型和脱模一体设备
CN111751069A (zh) * 2020-06-29 2020-10-09 中国建筑第八工程局有限公司 用于振动台竖向作动器埋件面板的安装装置及安装方法
CN114474306A (zh) * 2022-03-14 2022-05-13 保利长大工程有限公司 一种无人工振捣的大型预制构件整体式振动台

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EP1951488A1 (fr) 2008-08-06

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