EP4015174B1 - Dispositif de déchargement d'une matière de moulage fluide - Google Patents

Dispositif de déchargement d'une matière de moulage fluide Download PDF

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Publication number
EP4015174B1
EP4015174B1 EP20215243.5A EP20215243A EP4015174B1 EP 4015174 B1 EP4015174 B1 EP 4015174B1 EP 20215243 A EP20215243 A EP 20215243A EP 4015174 B1 EP4015174 B1 EP 4015174B1
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EP
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Prior art keywords
discharge
discharge container
lever
designed
flow
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EP20215243.5A
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German (de)
English (en)
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EP4015174A1 (fr
Inventor
Alfred Strassmeier
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Sommer Anlagentechnik GmbH
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Sommer Anlagentechnik GmbH
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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
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
    • B28B13/0225—Feeding specific quantities of material at specific locations in the mould
    • 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
    • B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
    • B28B13/026—Feeding the moulding material in measured quantities from a container or silo by using a movable hopper transferring the moulding material to the moulding cavities

Definitions

  • the invention relates to a device for discharging a flowable casting material from a discharge container containing the casting material for dropping the flowable casting material into a casting mold.
  • the EN 30 41 905 A1 describes a concrete spreading device, consisting of a concrete container that is movable relative to the formwork and arranged above the formwork with a slot-shaped cell wheel lock on the bottom that runs transversely to the direction of movement, in which the cell wheel lock is an annular channel that is open at the top and bottom and whose diameter is adapted to the blade diameter of the cell wheel rotating therein and in which the dosage of the concrete mass passing through the cell wheel lock in the unit of time, which determines the concrete thickness in the formwork exactly, can be controlled by the rotary movement of the cell wheel related to the relative movement of the concrete container and the formwork.
  • the GB 2 376 655 A describes a discharge device for lightweight concrete and comprises a plurality of pipes with discharge openings, wherein a bottle vibrator is arranged in each pipe for pre-compacting the lightweight concrete in the respective pipe.
  • the bottle vibrator is also height-adjustable within the respective stepped pipe in order to adjust the free flow cross-section in the pipe between a lowest position in which the bottle vibrator occupies approximately three-quarters of the narrower pipe width and an uppermost position in which the bottle vibrator occupies only half of the wider pipe width.
  • the CN 107 336 343 A describes an integrated automatic device for concrete transfer and distribution with six discharge ports under a hopper.
  • the opening and closing of each discharge port is controlled by a discharge port cylinder through the gate opening and closing system.
  • Each discharge port can be opened and closed individually, and the size of the discharge port can be adjusted continuously and flexibly, so that the width of the material bed can be adjusted to control the flow rate of the concrete mixture and the demand for fresh concrete in different positions.
  • the US 3 217 069 A describes a method for producing objects from a solidifiable, initially liquid mass and a device for carrying out the method.
  • the device comprises tubes which can be squeezed using two rollers each in order to separate and discharge a defined amount of mass.
  • the EP 1 669 179 A2 describes a device for dosing the filling quantity for filling into molds for producing building blocks, in particular concrete building blocks, which is to be arranged between a storage container and the molds to be filled.
  • the device comprises dosing bushes which can be filled at one end from the storage container and can dispense their contents to the molds at the other end, and devices which change the internal volume of the dosing bushes, which are designed in such a way that they compress the dosing bushes and thereby change their cross-section.
  • the FR 1 340 287 A describes a device for partially or completely closing a flexible hose arranged at the base of a funnel, the flexible hose being guided by a bracket formed by two parallel rods.
  • the object of the invention is to provide a device for discharging a flowable casting material from a casting material containing a discharge container for the falling introduction of the flowable casting material into a casting mold, which enables a variable and particularly uniform filling of casting molds.
  • the object is achieved by a device for discharging a flowable casting material from a discharge container containing the casting material for the falling introduction of the flowable casting material into a casting mold with the features of patent claim 1.
  • the flowable casting material can be, for example, fresh concrete.
  • the device for discharging a flowable casting material from a discharge container containing the casting material for the falling introduction of the flowable casting material into a casting mold can therefore be used in particular in precast concrete plants.
  • the device can be used, for example, to produce double-wall elements or monolithic concrete components or reinforced concrete components.
  • the device serves to introduce the fresh concrete into the casting mold as precisely, evenly and/or as splash-free as possible.
  • the mold which in the case of fresh concrete is also referred to as a formwork device, can be used in manual production processes, in partially automated or fully automated production processes.
  • the formwork device is also referred to as a pallet, which is specially designed to be moved from one work station to the next in an automated production plant.
  • the formwork tray forms a mold into which the fresh concrete is poured to produce the desired concrete element, for example a wall element.
  • the formwork tray can be flexibly reconfigured so that differently designed concrete elements or wall elements can be produced.
  • the bottom of the formwork tray forms a preferably flat formwork table on which edge formwork elements can be attached or placed, which define the contour for the desired wall element and prevent the fresh concrete poured into the formwork tray from flowing out of the formwork tray.
  • the edge formwork elements can be permanently installed edge formwork elements on at least one side edge of the formwork table.
  • the edge formwork elements can also be flexibly attachable edge formwork elements that can be connected to the formwork table in a lockable and detachable manner.
  • Such flexibly attachable edge formwork elements can be, for example, magnet-integrated edge formwork elements.
  • the edge formwork elements can also be fixed or flexibly attachable inner edge formwork elements. These inner edge formwork elements can define recesses in the wall element to be manufactured, such as windows or doors.
  • the discharge container which contains a predetermined amount of flowable casting material, i.e. fresh concrete, is moved over the mold.
  • the discharge container can be mounted so that it can move automatically, for example by means of a chassis on a portal system that extends over the mold.
  • the discharge of the flowable casting material from the discharge container should be carried out as precisely as possible so that the casting mold, which may have a different size depending on the individual case or may have different fittings and/or recesses, is filled with fresh concrete as precisely and evenly as possible so that on the one hand there is no underfilling in places and on the other hand no fresh concrete splashes out of the intended filling point.
  • fresh concrete generally has a certain self-leveling property, it is better for high-quality production if the fresh concrete is poured into the mold as evenly as possible without the need for significant self-leveling of the fresh concrete.
  • the discharge container which is designed to hold a quantity of casting material, is also referred to as a concrete distributor or concrete distribution bucket.
  • the discharge nozzles are the sole outlets through which the flowable casting material, in particular the fresh concrete, is discharged from the discharge container, in which a quantity of casting material or fresh concrete is stored, into the casting mold.
  • At least two separate discharge nozzles are provided, each of which is connected to the common discharge container.
  • Each of these at least two separate discharge nozzles is assigned its own metering device. Due to the separate discharge nozzles, which are directly connected in terms of flow to the interior of the discharge container, the pressure of the amount of casting material that is held in the interior of the discharge container can act evenly on each partial amount of casting material that is located in the discharge nozzle in the same way in order to press the partial amount of casting material out of the respective discharge nozzle at the end, without the need for special conveyor drives, such as the cell wheels according to EN 30 41 905 A1 or the bottle shakers after GB 2 376 655 A would be required.
  • the flow of the partial material streams is also limited by completely closing the flow cross-section can be stopped completely, a drip-free dosing of the partial material flows is also possible, which is not the case in the cited state of the art, since there a residual amount can always drip or the discharge nozzles cannot even be completely closed at all.
  • At least two discharge nozzles are provided. However, more than two discharge nozzles can also be provided. Depending on the width of the discharge container or the width of the discharge opening, there can be three, four, five, six, eight, ten or twelve discharge nozzles. In a favorable design, the discharge nozzles can also be provided in pairs. If the discharge nozzles are provided in pairs, then if a separate actuating unit is assigned to a dosing device of a discharge nozzle, the two actuating units of a respective pair of assigned discharge nozzles can be positioned on opposite sides. This is a particularly space-saving design.
  • the discharge nozzles are each designed to discharge a partial amount of casting material to be discharged from the discharge container in a separate material flow, a particularly precise dosing of the partial material flows can be carried out and, for example, even with several discharge nozzles, a partial amount of discharge nozzles can be completely closed while another partial amount of discharge nozzles remains open, so that, for example, the discharge width of the device can be changed, for example shortened. Such a shortening of the discharge width can take place, for example, during an ongoing discharge process, for example if a concrete wall is to be produced that is narrower than the possible total discharge width of the device.
  • a shortening of the discharge width or a division into separate, smaller discharge widths can, for example, be carried out intermittently during a discharge process, for example when a concrete wall with window cutouts or door cutouts is to be manufactured, so that when the device is passed over the casting mold, the discharge nozzles, which are currently located above the window cutouts or door cutouts, are switched off completely.
  • the metering device preferably works without a conveyor drive for the partial material flows into the separate discharge nozzle. Metering preferably takes place exclusively by controlling or regulating the flow rates of the partial material flows into the separate discharge nozzle individually by changing the flow cross-section.
  • the metering devices according to the invention are designed to individually adjust the flow rates of the partial material flows. At the same time, the metering devices according to the invention are also designed to completely stop the respective flow of the partial material flows in the flow direction of the casting material at the end of the respective discharge nozzle by completely closing the flow cross-sections, at times and/or in time periods in which no discharge of casting material is to take place from the discharge nozzle. Such stopping of the discharge of casting material can take place individually for each discharge nozzle and thus independently of the control or regulation of the flow rates in other discharge nozzles.
  • the at least one actuating unit can in particular be a motor, an electric motor and/or a cylinder.
  • the at least one motor can also be a compressed air motor or a hydraulic motor or the cylinder can be a pneumatic cylinder or hydraulic cylinder.
  • the respective motor can comprise an individual gear.
  • the respective motor can comprise an individual drive control.
  • each dosing device can be assigned its own, separate motor. This means that each dosing device can be automatically operated by its own motor and each motor can be controlled and/or regulated independently of other motors of other dosing devices.
  • Each dosing device of each discharge nozzle can be individually controlled and/or regulated. However, two or more dosing devices can also be controlled and/or regulated together in groups, in particular synchronously.
  • Two or more groups of dosing devices and discharge nozzles can thus be controlled and/or regulated together, in particular synchronously, wherein each group of dosing devices and discharge nozzles can be controlled and/or regulated independently of another group of dosing devices and discharge nozzles.
  • the respective dosing device is designed to change the flow rate of the partial material flow at the respective discharge nozzle by changing the free flow cross-section.
  • the dosing device is designed to be able to change the flow rate of the partial material flow at the respective discharge nozzle until the free flow cross-section is completely closed.
  • the free flow cross-section can be reduced to zero by means of the dosing device. This means that the flow cross-section can be completely closed.
  • the dosing device can in particular be designed to change the flow cross-section in the discharge nozzle to be able to adjust continuously, i.e. steplessly.
  • the respective metering device is formed by a pinch valve.
  • the pinch valve which can also be referred to as a hose pinch valve, enables a continuous reduction in the free flow cross-section until the flow cross-section is completely closed when opposite wall sections of the pinch valve hose lie close to one another, and accordingly also a continuous enlargement of the free flow cross-section until the flow cross-section is completely opened, in particular until it is in a non-pinched state in which the pinch valve hose has a circular cross-sectional contour.
  • the respective pinch valve has a flexible hose connector which is connected to the discharge connector at the end of the discharge connector as an extension of the latter and comprises a squeezing device which is designed to deform the hose connector so that the hose connector is transformed from its basic cross-section, which is at least substantially circular, into an oval cross-section in order to reduce the free flow cross-section, and which is designed to also completely squeeze the hose connector together in order to completely close the flow cross-section of the hose connector.
  • the flexible hose connector of the pinch valve can have an inner diameter in its non-pinched state that corresponds exactly to the diameter of the discharge connector, at least essentially or apart from the wall thickness of the discharge connector.
  • the inner diameter of the flexible hose connector of the pinch valve and/or the discharge connector can in particular be between 50 millimetres and 300 millimetres, for example 150 millimetres.
  • the flexible The hose connector of the pinch valve can be detachably attached to a respective lower edge section of the discharge connector. Due to the detachability, the flexible hose connector can be easily removed, for example by hand or using only hand tools, in the event of damage and replaced with a new flexible hose connector.
  • the flexible hose connector can be attached to the discharge connector using a pipe clamp or hose clamp, for example.
  • the flexible hose connector acts as an extension of the discharge connector.
  • the squeezing device has a first squeezing bar which rests on a first outer side of the hose connector and has a second squeezing bar which rests on a second outer side of the hose connector opposite the first outer side, wherein the first squeezing bar is actuated by a first lever connected to the first squeezing bar, the second squeezing bar is actuated by a second lever connected to the second squeezing bar, and the first lever is coupled to the second lever by means of a gear, so that when the squeezing device is actuated, the first squeezing bar and the second squeezing bar carry out a mutually synchronized opening movement and/or closing movement.
  • the first pinch bar and the second pinch bar can run parallel to each other on opposite sides of the flexible hose connector and can be moved towards each other by means of the first lever and the second lever in order to reduce the flow cross-section of the flexible hose connector or can be moved away from each other in order to increase the flow cross-section of the flexible hose connector.
  • the first pinch bar and the second pinch bar can be formed from rigid rods with, for example, a circular cross-section, i.e. round rods.
  • the first lever can have a first leg, which is mounted with its proximal end so as to be pivotable about a first axis of rotation in a housing, in particular in a housing of a closure unit separate from the discharge container, and which is connected at its distal end to one end of the first pinch bar, and a second leg, which is mounted with its proximal end so as to be pivotable about the same axis of rotation in the housing, in particular in a housing of a closure unit separate from the discharge container, and which is connected at its distal end to the other end of the first pinch bar.
  • the second lever can have a first leg, which is mounted with its proximal end about a second axis of rotation in the housing, in particular in a housing of a closure unit separate from the discharge container, and which is connected at its distal end to one end of the second pinch bar, and a second leg, which is mounted with its proximal end about the same axis of rotation in the housing, in particular in a housing of a closure unit separate from the discharge container, and which is connected at its distal end to the other end of the second pinch bar.
  • the first lever may have a first toothing which engages a second toothing on the second lever such that the first lever and the second lever perform opposite pivoting movements to selectively move the first pinch bar and the second pinch bar towards each other to close the pinch valve or away from each other to open the pinch valve.
  • the movement of the first lever is forcibly coupled to the movement of the second lever. It is then sufficient if only one of the two levers is actively adjusted, whereby the other lever is then also actuated in a forcibly coupled manner without it itself having to be actively adjusted.
  • the at least two discharge nozzles and the dosing units associated with the discharge nozzles can be combined in a closure unit separate from the discharge container, which is adjustably mounted on the discharge container between an operating position in which the closure unit is connected to a discharge opening of the discharge container and a repair position in which the closure unit is moved away from the discharge opening of the discharge container.
  • the closure unit which is separate from the discharge container, comprises a housing or at least a frame or a rack in which the discharge nozzles, the dosing units and any other components of the dosing units are arranged.
  • the closure unit is designed separately from the discharge container in that the closure unit forms its own assembly which can be attached to the discharge container, can be detached from the discharge container as an assembly and/or can be mounted on the discharge container in an adjustable manner, in particular pivotable or foldable.
  • the closure unit can in particular be mounted on the discharge container so as to be pivotable about a vertical axis of rotation.
  • the discharge container can have a discharge opening on the bottom.
  • the discharge opening can in particular be a slot-shaped or elongated rectangular opening.
  • the discharge opening can in particular extend at least substantially over the entire width of the discharge container.
  • the vertical axis of rotation about which the closure unit is pivotably mounted on the discharge container can extend outside the discharge opening.
  • the closure unit can thus be mounted on the discharge container in such a way that it can be pivoted away from the discharge opening in a horizontal plane.
  • the discharge nozzles, the dosing units, in particular the levers, squeeze bars and flexible hose nozzles are particularly easily accessible so that they can be easily inspected, easily cleaned and/or, if necessary, easily repaired, dismantled, assembled, exchanged and/or replaced.
  • the closure unit can have first sealing strips pointing upwards, which enclose the discharge nozzles arranged next to one another from opposite sides and which, in an operating position of the closure unit in which the closure unit is connected to a discharge opening of the discharge container, lie flush against second sealing strips of the discharge container which enclose the discharge opening of the discharge container from opposite sides.
  • the discharge nozzles can be formed by cylindrical, in particular circular cylindrical pipe sections.
  • a funnel-shaped inlet area can be connected to an upper edge of the respective pipe sections.
  • the respective inlet area can be formed by conical or pyramid-shaped wall sections.
  • the upper end sections of the inlet areas can in particular have a rectangular or square edge contour.
  • the several inlet areas can be arranged directly adjacent to one another, next to one another, with the discharge nozzles then being positioned continuously in a row at a fixed distance from one another.
  • Each dosing device can be assigned its own, individually controllable actuating unit, in particular its own, individually controllable motor.
  • the respective actuation units can comprise motors, in particular electric motors, and/or cylinders.
  • the motors can also be compressed air motors or hydraulic motors.
  • the cylinders can be pneumatic cylinders or hydraulic cylinders.
  • the respective individual motor can comprise an individual gear.
  • the respective individual motor can comprise an individual drive control.
  • each dosing device can thus be assigned its own, separate motor. This means that each dosing device can be automatically actuated by its own motor and each motor can be controlled and/or regulated independently of other motors of other dosing devices.
  • Each dosing device of each discharge nozzle can be controlled and/or regulated individually. Two or more dosing devices can also be controlled and/or regulated together in groups, in particular synchronously.
  • Two or more groups of dosing devices and discharge nozzles can thus be controlled together, in particular, they can be controlled and/or regulated synchronously, whereby each group of dosing devices and discharge nozzles can be controlled and/or regulated independently of another group of dosing devices and discharge nozzles.
  • Each actuating unit or each motor can have a position measuring device which is designed and configured to detect the current position of the actuating elements of the associated dosing device, in particular the pinch bars of the associated pinch valve.
  • the device according to the invention can comprise a control device which is designed and set up to automatically control and/or regulate the actuating units or the motors.
  • a sensor can be provided for each discharge nozzle to record a reference variable, which can record the current flow rate of flowable casting material through the respective discharge nozzle, and the motors can be provided in conjunction with the position measuring devices to set the control variable in order to open and/or close the dosing devices and thereby regulate the respective flow rates in each individual discharge nozzle.
  • a flow rate per time can also be determined by the sum of all discharge nozzles using a weight measuring system which records the entire weight change in the discharge container over a period of time.
  • the discharge container can have a discharge opening in the form of a slot opening, wherein below the slot opening the at least two discharge nozzles are positioned in a row next to one another along the longitudinal extension of the slot opening and are connected to the slot opening, and within the discharge container a a screw conveyor or paddle roller extending parallel to the slot opening is mounted in a rotationally driven manner, which can be driven in a counterclockwise or clockwise direction as desired, and a spiked roller extending parallel to the slot opening or a spiked roller is mounted in a rotationally driven manner between the discharge nozzle and the screw conveyor or paddle roller.
  • the slot opening can therefore have a rectangular overall contour, the width of which (across the number of discharge nozzles arranged next to one another) is significantly greater than the depth.
  • the slot opening of the discharge container can have an identical or at least substantially similar shape or contour to the overall contour of the several inlet areas of the closure unit arranged next to one another.
  • a representative embodiment of a device 1 for discharging a flowable casting material from a discharge container 2 containing the casting material for the falling introduction of the flowable casting material into a casting mold 3 is shown.
  • the device 1 thus serves for gravity discharge.
  • the device 1 can, as in the case of the present embodiment, be designed as a concrete distributor 20.
  • the concrete distributor 20 can comprise a chassis 21, by means of which the concrete distributor 20 can be moved on a portal or bridge (not shown in detail).
  • the flowable casting material which in the case of a concrete distributor 20 can be fresh concrete, is filled into the discharge container 2 via a gutter 22 and through a grid 23.
  • a control box can be attached to the chassis 21, which contains a control device 24 for the concrete distributor 20.
  • a first electric drive 25.1 can be provided, which is designed to move the chassis 21 on the portal or bridge and which can be controlled via the control device 24.
  • a second electric drive 25.2 can be provided, which is designed to rotate a conveyor screw 15a or paddle roller 15b, which will be described in more detail below, and which can also be controlled via the control device 24.
  • a third electric drive 25.3 can be provided, which is designed to rotate a spiked roller 14, which will be described in more detail below, and which can also be controlled via the control device 24.
  • the device 1 accordingly has a discharge container 2 which is designed to hold a quantity of casting material.
  • the device 1 comprises at least two separate discharge nozzles 4 connected to the discharge container 2, each of which is designed to discharge a partial amount of casting material to be discharged from the discharge container 2 in a separate material stream from the discharge container 2.
  • the device 1 also has a dosing device 5 associated with the respective discharge nozzle 4, which is designed both to individually adjust the flow rate of the partial material flow and to completely stop the flow of the partial material flow in the flow direction of the casting material at the end of the respective discharge nozzle 4 by completely closing the flow cross-section.
  • the device 1 comprises at least one actuating unit 9 or a motor which is designed to automatically actuate the metering devices 5 in order to control the flow rates of the separate partial material flows from the at least two separate discharge nozzles 4 independently of one another.
  • the respective metering device 5 is designed to change the flow rate of the partial material flow at the respective discharge nozzle 4 by changing the free flow cross-section.
  • the respective metering devices 5 are formed by a respective pinch valve 5a.
  • the respective pinch valve 5a has a flexible hose connector 5.1, which is connected to the discharge connector 4 at the end of the discharge connector 4 as an extension of the latter and comprises a squeezing device 5.2, which is designed to deform the hose connector 5.1, so that the hose connector 5.1 is transformed from its basic cross-section, which is at least substantially circular, into an oval cross-section in order to reduce the free flow cross-section, and which is designed to also completely squeeze the hose connector 5.1 together in order to completely close the flow cross-section of the hose connector 5.1.
  • the crushing device 5.2 has a first pinch bar 6.1, which rests on a first outer side of the hose connector 5.1 and has a second pinch bar 6.2 which rests on a second outer side of the hose connector 5.1 opposite the first outer side, wherein the first pinch bar 6.1 is actuated by a first lever 7.1 connected to the first pinch bar 6.1, the second pinch bar 6.2 is actuated by a second lever 7.2 connected to the second pinch bar 6.2, and the first lever 7.1 is coupled to the second lever 7.2 by means of a gear 8, so that when the pinch device 5.2 is actuated, the first pinch bar 6.1 and the second pinch bar 6.2 carry out a mutually synchronized opening movement and/or closing movement.
  • the first lever 7.1 has a first toothing 8.1 which engages in a second toothing 8.2 on the second lever 7.2, such that the first lever 7.1 and the second lever 7.2 carry out opposite pivoting movements in order to move the first pinch bar 6.1 and the second pinch bar 6.2 optionally towards each other to close the pinch valve 5a or away from each other to open the pinch valve 5a.
  • the several discharge nozzles 4 and the dosing units 5 associated with the discharge nozzles 4, in particular together with the several actuating units 9 or motors for the dosing units 5, are combined in a closure unit 10 which is separate from the discharge container 2 and which can be moved between an operating position ( Fig.1 , Fig.2 ), in which the closure unit 10 is connected to a discharge opening 2a ( Fig. 3 ) of the discharge container 2, and a repair position ( Fig. 3 ), in which the closure unit 10 is moved away from the discharge opening 2a of the discharge container 2, is adjustably mounted on the discharge container 2.
  • the closure unit 10 is rotatable about a vertical axis of rotation D ( Fig.2 ) is pivotally mounted on the discharge container 2.
  • the closure unit 10 in the case of the present embodiment has two first sealing strips 11 pointing upwards, enclosing the discharge nozzles 4 arranged next to one another from opposite sides, which, in an operating position of the closure unit 10 in which the closure unit 10 is connected to the discharge opening 2a of the discharge container 2, are flush with two second sealing strips 12 ( Fig.3 ) of the discharge container 2.
  • each dosing device 5 is assigned its own, individually controllable actuating unit 9 or a motor of the device 1.
  • At least two discharge nozzles 4 are provided. However, more than two discharge nozzles 4 can also be provided. Depending on the width of the discharge container 2 or the width of the discharge opening 2a, there can be three, four, five, six, eight, ten or twelve discharge nozzles 4. In the case of the present embodiment, for example, ten discharge nozzles 4 are used. In a favorable embodiment, as shown, the discharge nozzles 4 can also be provided in pairs. If the discharge nozzles 4 are provided in pairs, then in the case of an assignment of a separate actuating unit 9 or a separate motor to a dosing device 5 of a discharge nozzle 4, the two actuating units 9 or motors of a respective pair of assigned discharge nozzles 4 can be arranged on opposite sides. positioned, as is the case in Fig.5 is recognizable.
  • Each actuating unit 9 or each motor can have a position measuring device 13, in particular integrated into the actuating unit 9 or into the motor, which is designed and configured to detect the current position of the actuating elements of the associated dosing device 5, in particular the pinch bars 6.1, 6.2 of the associated pinch valve 5a.
  • the Fig.6 shows a cutaway view in which the discharge container 2 having the discharge opening 2a is removed, but the discharge nozzles 5 arranged below the slot opening of the discharge container 2, which are positioned in a row next to one another along the longitudinal extension of the slot opening and are connected to the slot opening, are shown.
  • the Fig.6 shows the conveyor screw 15a or paddle roller 15b, which is actually arranged inside the discharge container 2 above the slot opening and extends parallel to the slot opening, which is mounted in the discharge container 2 so that it can be driven in rotation, which can be driven in rotation either in a left-hand or a right-hand rotation.
  • Fig.6 thereby the spiked roller 14 extending parallel to the slot opening between the conveyor screw 15a or paddle roller 15b and the discharge nozzle 4 or the complete closure unit 10, which is also mounted in the discharge container 2 so as to be rotatably driven.

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Claims (7)

  1. Dispositif pour décharger un matériau de coulée fluide d'un récipient de décharge (2) contenant le matériau de coulée pour l'introduction par chute du matériau de coulée fluide dans un moule de coulée (3), présentant :
    - un récipient de décharge (2) qui est conçu pour contenir une quantité de matériau de coulée,
    - au moins deux tubulures d'évacuation (4) séparées, raccordées au récipient de décharge (2), qui sont conçues chacune pour évacuer du récipient de décharge (2) une quantité partielle de matériau de coulée à évacuer dans un flux de matériau séparé respectif,
    - un dispositif de dosage (5) associé à la tubulure d'évacuation (4) respective, qui est conçu aussi bien pour régler individuellement le débit du courant de matériau partiel que pour arrêter complètement un écoulement du courant de matériau partiel par fermeture complète de la section transversale d'écoulement, dans le sens d'écoulement du matériau de coulée, du côté de la tubulure d'évacuation (4) respective, et
    - au moins une unité d'actionnement (9) qui est conçue pour actionner automatiquement les dispositifs de dosage (5) afin de commander indépendamment les uns des autres les débits des flux de matériau partiels séparés provenant des au moins deux tubulures d'évacuation (4) séparées, le dispositif de dosage (5) respectif étant conçu, de modifier le débit du flux de matériau partiel au niveau de la tubulure d'évacuation (4) respective par une modification de la section transversale d'écoulement libre et le dispositif de dosage (5) respectif est formé par une soupape d'écrasement (5a), la soupape d'écrasement (5a) respective comportant un embout de tuyau flexible (5.1) qui, dans le prolongement de la tubulure d'évacuation (4), se raccorde à celle-ci du côté de l'extrémité de la tubulure d'évacuation (4) et comprend un dispositif d'écrasement (5.2) qui est conçu pour déformer la tubulure (5.1) de telle sorte que la tubulure (5.1) est déformée de sa section transversale au moins sensiblement circulaire dans sa section transversale de base en une section transversale ovale afin de réduire la section transversale d'écoulement libre, et qui est conçu pour écraser la tubulure (5.1).1) pour fermer complètement la section d'écoulement de la tubulure (5.1), caractérisé en ce que le dispositif d'écrasement (5.2) présente une première barre d'écrasement (6.1) qui s'appuie sur un premier côté extérieur de la tubulure (5.1) et une deuxième barre d'écrasement (6.2) qui s'appuie sur un deuxième côté extérieur de la tubulure (5.1) opposé au premier côté extérieur, la première barre d'écrasement (6.1) étant fixée sur le côté extérieur de la tubulure (5.1).1) est actionnée par un premier levier (7.1) relié à la première barre d'écrasement (6.1), la deuxième barre d'écrasement (6.2) est actionnée par un deuxième levier (7.2) relié à la deuxième barre d'écrasement (6.2), et le premier levier (7.1) est couplé au deuxième levier (7.2) au moyen d'une transmission (8), de sorte que lors d'un actionnement du dispositif de pincement (5.2), la première barre d'écrasement (6.1) et la deuxième barre d'écrasement (6.2) effectuent un mouvement d'ouverture et/ou de fermeture synchronisé(e) entre elles.
  2. Dispositif selon la revendication 1, caractérisé en ce que le premier levier (7.1) présente une première denture (8.1) qui s'engrène dans une deuxième denture (8.2) sur le deuxième levier (7.2), de telle sorte que le premier levier (7.1) et le deuxième levier (7.2) effectuent des mouvements de pivotement opposés pour rapprocher l'une de l'autre la première barre d'écrasement (6.1) et la deuxième barre d'écrasement (6.2) afin de fermer la soupape d'écrasement (5a) ou pour les éloigner l'une de l'autre afin d'ouvrir la soupape d'écrasement (5a), au choix.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que les au moins deux tubulures d'évacuation (4) et les dispositifs de dosage (5) associées aux tubulures d'évacuation (4), en particulier avec la au moins une unité d'actionnement (9) pour les dispositifs de dosage (5), sont réunies dans une unité de fermeture (10) séparée du récipient de décharge (2), qui est montée sur le récipient de décharge (2) de manière à pouvoir être déplacée entre une position de fonctionnement, dans laquelle l'unité de fermeture (10) est raccordée à une ouverture de distribution (2a) du récipient de décharge (2), et une position de remise en état, dans laquelle l'unité de fermeture (10) est éloignée de l'ouverture de distribution (2a) du récipient de décharge (2).
  4. Dispositif selon la revendication 3, caractérisé en ce que l'unité de fermeture (10) est montée sur le récipient de décharge (2) de manière à pouvoir pivoter autour d'un axe de rotation vertical (D).
  5. Dispositif selon la revendication 3 ou 4, caractérisé en ce que l'unité de fermeture (10) présente des premières baguettes d'étanchéité (11) orientées vers le haut, entourant de côtés opposés les tubulures d'évacuation (4) disposées les unes à côté des autres, qui, dans une position de fonctionnement de l'unité de fermeture (10), dans laquelle l'unité de fermeture (10) est raccordée à une ouverture de décharge (2a) du récipient de décharge (2), s'applique à fleur contre des deuxièmes baguettes d'étanchéité (12) du récipient de décharge (2) entourant l'ouverture de décharge (2a) du récipient de décharge (2) de côtés opposés.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce qu'à chaque dispositif de dosage (5) est associée une unité d'actionnement (9) propre, pouvant être commandée individuellement, en particulier un moteur propre du dispositif, pouvant être commandé individuellement.
  7. Dispositif selon la revendication 6, caractérisé en ce que chaque unité d'actionnement (9) ou chaque moteur comporte un dispositif de mesure de déplacement (13) qui est conçu et agencé pour détecter la position momentanée des organes d'actionnement du dispositif de dosage (5) associé, en particulier des barres d'écrasement (6.1, 6.2) de la soupape d'écrasement (5a) associée.
EP20215243.5A 2020-12-17 2020-12-17 Dispositif de déchargement d'une matière de moulage fluide Active EP4015174B1 (fr)

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CN116768685A (zh) * 2023-06-09 2023-09-19 西安近代化学研究所 一种粒铸推进剂浇铸液料流动截止方法

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Publication number Priority date Publication date Assignee Title
NL275676A (fr) * 1961-03-08
FR1340287A (fr) * 1962-09-05 1963-10-18 A Devianne Duquesnoy Fils De Dispositif pour fermer partiellement ou totalement une manche souple d'écoulement à la base d'une trémie
DE3041905C2 (de) 1980-11-06 1983-10-13 Ainedter Beteiligungs- und Entwicklungsgesellschaft mbH, 5020 Salzburg Betondosiervorrichtung
JPH0755496B2 (ja) * 1987-09-30 1995-06-14 東急建設株式会社 コンクリートバケットの開閉装置
GB0102031D0 (en) 2001-01-26 2001-03-14 Taylor Roger C B A dispenser for a flowable and settable material
DE102004059954B4 (de) * 2004-12-13 2012-03-01 Schindler Steinbearbeitungsmaschinen-Anlagentechnik Gmbh Dosiervorrichtung
CN107336343B (zh) * 2017-01-12 2023-05-05 德州海天机电科技有限公司 一种混凝土自动转料布料一体化装置

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