EP2223881B1 - Dispositif de levage à vide et procédé de fonctionnement d'un dispositif de levage à vide - Google Patents

Dispositif de levage à vide et procédé de fonctionnement d'un dispositif de levage à vide Download PDF

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Publication number
EP2223881B1
EP2223881B1 EP09002731A EP09002731A EP2223881B1 EP 2223881 B1 EP2223881 B1 EP 2223881B1 EP 09002731 A EP09002731 A EP 09002731A EP 09002731 A EP09002731 A EP 09002731A EP 2223881 B1 EP2223881 B1 EP 2223881B1
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EP
European Patent Office
Prior art keywords
suction
vacuum
valve device
suction hose
lifting device
Prior art date
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EP09002731A
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German (de)
English (en)
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EP2223881A1 (fr
Inventor
Georg Komposch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Albert Fezer Maschinenfabrik GmbH
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Albert Fezer Maschinenfabrik GmbH
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Priority to AT09002731T priority Critical patent/ATE522467T1/de
Priority to EP09002731A priority patent/EP2223881B1/fr
Publication of EP2223881A1 publication Critical patent/EP2223881A1/fr
Application granted granted Critical
Publication of EP2223881B1 publication Critical patent/EP2223881B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0256—Operating and control devices

Definitions

  • the invention relates to a vacuum lifting device having a suction line extending between a vacuum port and an orifice; with a suction means which serves for sealing engagement with transport goods surfaces and which is attached to the end of the suction line and limits the mouth opening; and with a variable-length suction hose which limits the suction line in sections between the suction means and the vacuum connection, and with a valve device which is designed to set a negative pressure in the suction hose and to influence a free flow cross-section of the suction in a line section between the suction hose and the mouth opening and between a blocking position for interrupting the line section and a release position for releasing the line section is adjustable, wherein the valve device is designed such that it can be brought independently of a contact of the suction means with the transported goods in the blocking position for interrupting the line section to a negative pressure in the blocking position to reduce the suction and to facilitate lifting of the absorbent from the cargo.
  • the invention also relates to a method for operating a vacuum lifting device.
  • the known vacuum lifting device is intended for lifting of transport goods such as boxes, barrels or sacks.
  • the known vacuum lifting device comprises a variable length suction hose which extends in the vertical direction and the upper end of which can be fixed to a support or a building wall.
  • a control unit is mounted in which a valve device is arranged and which is coupled to a plate-like, provided with a circumferential, elastic seal suction means.
  • the suction cup-shaped suction means serves for sealing engagement with a transport material surface.
  • a fluid chamber formed by the suction means and the transport goods surface can be brought into communicating connection with the vacuum-pressurized suction hose by appropriate actuation of the valve device.
  • the negative pressure of the suction hose also leads to a negative pressure of the fluid chamber and thus to exert a suction force on the transported goods.
  • the negative pressure also acts on the suction hose and leads to a vacuum-induced length contraction of the suction hose, which results in a lifting movement for the transported goods.
  • the valve device allows the supply of supply air from the environment in the suction hose. This takes place in that a free cross-section of a supply air channel, which communicates the interior of the vacuum-pressurized suction hose communicating with the environment, can be influenced by means of the valve device between an open position and a closed position. In the open position, a maximum supply air flow can take place in the suction hose, in the closed position, the supply air flow into the suction hose is at least almost complete interrupted. To settle the cargo is first by introduction of supply air through the supply air duct into the suction hose, a weakening of the negative pressure in the suction hose instead.
  • variable-length suction hose expands due to the weight of the transported material, since it is no longer completely compensated by the negative pressure in the suction hose until the transported goods can be deposited on a surface. Subsequently, at maximum supply air flow into the suction hose and thus minimal negative pressure in the suction hose and suction means, the suction means is lifted off the transport goods surface.
  • the known vacuum lifting device has a control valve associated with the valve device, which is designed for the temporary interruption of a line section of the suction line formed between the suction means and the vacuum connection arranged at the upper end of the variable-length suction hose.
  • the control valve releases the line section of the suction line and thus the communicating connection between the vacuum connection and the suction means when the suction means approaches the transport goods surface.
  • the control valve closes the suction line in order to avoid an undesired vacuum volume flow through the suction line in the direction of the vacuum connection.
  • the plate-like suction means shown in the aforementioned prior art can be provided as a suction means at the lower end of the variable-length suction hose and a grid-like frame with a plurality of spaced apart suction cups.
  • a suction agent is used for example for handling wood, glass or metal plates and has a considerable weight.
  • Such a thing trained suction prepared due to its spatial extent certain difficulties in lifting the Transportgutober Assembly after completion of the lifting process.
  • a vacuum lifting device with a vertically oriented suction hose is known, which is suspended at an upper end and is equipped at a lower end with a squeegee and a control panel.
  • the operating part comprises a sliding sleeve for controlling the vacuum acting on the suction hose and the suction foot, wherein the sliding sleeve acts on a first valve device.
  • an actuating lever is provided, which acts on a further valve device which is set up for rapid settling of the moving with the Saughebe issued transported.
  • Both the controllable by the sliding sleeve valve as well as the actuatable lever controllable valve are adapted to allow ambient air to flow into the suction hose, thereby controlling the desired lifting action and to allow the possibly rapid settling of the cargo.
  • a lifting device with a vertically oriented suction hose in which at a lower end a handling unit is mounted, which comprises a valve means, wherein the valve means allows the influx of ambient air into the vacuum-loaded suction hose and thus both the influence of the lifting force and the Length expansion of the suction hose allows.
  • the object of the invention is to provide a vacuum lifting device and a method for operating a vacuum lifting device in which a facilitated Lifting the suction of the Transportgutober Type is made possible.
  • the valve device is designed to set a free cross section of a Zu Kunststoffkanals to influence a communicating connection of the negative pressure suction hose with the environment and thus to allow at least partial pressure equalization between the suction line and the environment, wherein the valve device is designed such that the supply air duct in the blocking position is at least almost completely closed, to allow a vacuum build-up in the suction hose. This allows a simple influence of the negative pressure in the suction hose.
  • the valve device interrupts or throttles the free cross section of the supply air duct to build up a negative pressure in the suction hose.
  • a reduction of the negative pressure in the suction hose is effected. Due to the structure of the negative pressure in the blocking position of the valve device in addition to the reduction of the negative pressure effect on the suction means or the ventilation of the suction means in addition a lifting movement of the vacuum lifting device is achieved. Since at this time, the fluid chamber is at least almost free of negative pressure, the cargo is not raised in this lifting movement of the vacuum lifting device. Rather, the lifting of the suction agent is facilitated by the transported material according to the invention.
  • the suction hose In order to avoid a jerky lifting of the absorbent from the transported material, it may be provided to limit the build-up of negative pressure in the suction hose by not completely closing the supply air channel in the blocking position of the valve device becomes.
  • the supply air flow in the blocking position can be fixed or adjustable by the user.
  • valve device is designed in the blocking position for aeration of the suction medium from the environment (atmosphere) in order to ensure a rapid reduction of the vacuum at the suction means.
  • the valve means By ventilating the suction means by means of the valve means, which is in the blocking position, the fluid chamber bounded by the suction means and the transport material surface is brought into communicating connection with the environment.
  • no vacuum is present, which would preclude a lifting of the absorbent from the transported.
  • the transported material has a smooth, closed surface and the suction agent is applied in a substantially sealing manner to the transport material surface.
  • valve device when the valve device is formed in the blocking position for an adjustable supply air flow through the supply air duct into the suction hose is particularly advantageous.
  • the user can effect a lifting movement of the suction hose and thus of the suction means and cause an automatic lifting of the suction agent from the transported goods.
  • time-dependent adjustment of the supply air flow into the suction hose may be provided in the blocking position of the valve device. In this case, after the lapse of a predeterminable temporal interval after taking the locked position an increasing lifting force in the suction hose caused by reducing the supply air, which leads to a gentle lifting movement of the absorbent from the transported.
  • a manually operable, in particular a single, actuating means for controlling the valve device is provided.
  • actuating means a user can enter the control commands to the valve device in rapid succession, which are necessary for lifting the transported goods and / or for shifting the transported goods and / or for lowering the transported goods and / or lifting the suction means from the transported goods.
  • the actuating means is designed as a pivoting and / or linearly movable operating lever, which the user can take with one hand.
  • the control commands are entered on the valve device by the pivoting and / or linear movements of the operating lever. It is particularly advantageous if a single actuating means is provided for controlling the valve device, since this ensures a particularly rapid and reliable input of the control commands to the valve device by a user.
  • the actuating means and / or the valve device are arranged in a control unit, which is arranged between suction hose and suction means.
  • the control unit here comes on the control of the valve device nor the additional function of a force transmission of operator forces to the vacuum lifting device, which are necessary for moving the adhering to the suction conveyance.
  • This introduction of operating forces on the vacuum lifting device can be done with the same hand as the actuation of the actuating means.
  • particularly ergonomic workflows can be realized with the vacuum lifting device.
  • the actuating means and / or the valve device are arranged in a control unit, which is arranged at a distance from the suction line.
  • the suction means is formed for example as a grid-like arrangement of a plurality of spatially distributed suction cups, as is the case, for example, for handling larger metal wood or glass plates.
  • control unit is connected to the suction line and / or the suction means via at least one, in particular flexible pipe.
  • the pipeline allows a communicating fluidic connection between the control panel and the suction line, for example, to provide the supply air flow into the suction hose.
  • valve device can be arranged in the control panel, which favors a simple construction of the vacuum lifting device.
  • the actuating means is assigned a force means, in particular a spring arrangement, for aligning the valve means in a preferred position, wherein the force means is designed such that upon movement of the valve means in the direction of the blocking position, a force threshold is overcome.
  • the power comes to the task, the user a sensitive control of To allow valve device by providing a counterforce to the operator applied operating force.
  • the force acting on the actuating means such that it is aligned without operating forces of a user in a preferred position in which the valve device is in the release position. In the release position, cargo can be adhered to the suction means and the suction hose can cause a lifting movement of the suction means with adhering cargo.
  • the force means Upon deflection of the actuating means from this preferred position, which is accompanied, for example, by an increase in the supply air flow into the suction hose, the force means provides an increasing counterforce to the actuating means.
  • the user must always increase the operating force on the actuating means, for example, to cause a lowering movement of the vacuum lifting device.
  • the force means is set up such that upon movement of the actuating means coupled to the valve device, a force threshold must be overcome.
  • the force means can prescribe a tactile pressure point which can be represented as a jump function in a force-displacement characteristic for the actuating means. This pressure point must be overcome consciously and with significantly increased force of the user, so that an unintentional control of the blocking position is avoided.
  • the actuating means is associated with a locking device which is designed to partially block an actuating path of the actuating means to prevent ingestion of the blocking position by the valve device with the load adhering to the suction means.
  • a unintentional actuation of the valve device is prevented in this case by the actuating travel of the actuating means is only released to reach the blocking position when no load adheres to the suction means.
  • This function of the locking device can be realized, for example, by a suction hose and suction means arranged, spring-biased locking device which assumes a release position for the actuating means without adhesive load and occupies the desired blocking position with adhering load on the suction due to the additional weight of the cargo.
  • the valve device comprises a slide valve having a limited by a vacuum channel and a supply air base body and a relatively movable spool, which serves to influence the free cross sections of the vacuum channel and the supply air and this expediently with a Vakuum KunststoffausEnglishung, a Zu Kunststoff horrausnaturalung and a ventilation recess is provided.
  • a slide valve With a slide valve, a simple and robust construction of the valve device can be achieved.
  • suitable design of the geometries of the vacuum channel, the supply air duct, the vacuum control recess, the Zubuch horrausEnglishung and the ventilation recess different valve characteristics can be achieved.
  • the geometries of the supply air duct and the Zu Kunststoff horrinauslangung be adapted to one another such that upon movement of the actuating means takes place to a proportional to the actuation change of the free cross section of the supply air passage through the spool.
  • a non-linear course for the change of the free cross sections of vacuum duct and supply air duct in Dependent on the actuation path of the actuating means are provided.
  • the spool is at least partially received between the base body and a support body, wherein the support body is penetrated by a communicating with the mouth opening communication hole, which can be brought in at least partially overlap with the vacuum control recess and the ventilation recess.
  • the spool thus allows in operative connection with the support body alternately the negative pressure and the inventive ventilation of the suction means. If the vacuum control recess is in register with the connecting bore, there is a communicating connection between the vacuum-pressurized suction hose and the mouth opening of the suction means. If the ventilation recess is in register with the connecting bore, the blocking of the communicating connection between the suction hose and the suction means takes place, so that no further negative pressure is applied to the suction means. In addition, the suction means is ventilated via the ventilation recess and the connection bore in order to facilitate the lift-off process from the transport material surface.
  • the ventilation recess is pocket-like formed on a narrow side of the spool to ensure in the locked position a communicating connection between the environment and the connection bore in the support body.
  • a particularly simple production of the spool and effective ventilation of the suction means are ensured in the blocking position of the valve device.
  • the object of the invention is achieved for a method for operating a vacuum lifting device in that a valve device for influencing a negative pressure in a variable-length suction hose and for influencing a fluid pressure between the suction hose and a suction means for lowering transported goods is controlled such that the first In the suction hose provided by a vacuum source vacuum is reduced by inflow of supply air into the suction hose. Due to the reduced negative pressure, a lowering movement of the transported goods takes place, since the falling negative pressure can not apply the counterforce necessary for compensating for the weight of the attached transport goods. Once the cargo is discontinued, the communicating connection between the suction hose and the suction means is shut off by the valve device by an appropriate design of the valve means upon actuation by the user.
  • a ventilation of the suction means by supplying ambient air by means of the valve device takes place.
  • a negative pressure can be built up in the suction hose by reducing the supply air supplied to the suction hose by the action of the valve device, so that when the suction means are aerated, a contraction movement of the suction hose results which leads to lifting of the suction agent from the transported goods.
  • Vacuum lifting device 10 which is also referred to as suction lifting device or tube lifter, is provided for lifting transport goods such as glass, metal or wood panels or cardboard packaging, which preferably have a substantially closed surface.
  • the vacuum lifting device 10 comprises a variable length suction hose 11, which is accommodated on a suspension 13 at an upper end region and which carries at a lower end region an operating part 65 which is coupled to a suction means 12 embodied by way of example as a single suction plate.
  • the suspension 13 is provided with retaining pins 15 which are formed for attachment to a support frame, not shown, or a hall ceiling of a workshop, not shown.
  • the suction hose 11 is preferably made of a rubber-elastic material and has an example spiral-shaped wire insert, which prevents a reduction in the diameter of the suction hose 11 under negative pressure. Due to the stabilization of the suction hose 11 in the radial direction through the wire insert, the forces occurring when vacuuming the suction hose 11 only lead to a length contraction of the suction hose 11. This length contraction causes the desired lifting movement for the suction means 12.
  • the suspension 13 has a projecting into the suction hose 11 cylindrical sleeve-shaped portion on which the suction hose 11 is fixed with fastening means not shown.
  • a vacuum port 17 is arranged, which is connectable to a vacuum source, not shown.
  • the suction line is essentially formed by the opening in the vacuum port 17 fluid channel 23 in the suspension 13, the suction hose 11, the vacuum channel 32 in the base plate 30, the Vakuum askaus Principleung 40 in the valve spool 36, the connecting hole 26 in the support body 24, the pipe section 22 and limited by the suction means 14.
  • the Suction line thus extends between the vacuum port 17 and a limited by the suction port opening 19th
  • the control unit housing 58 comprises a housing cover 62 and an actuating means 64 and forms together with a pipe section 22, a control panel 65.
  • the control panel 65 is designed for manual handling by a user, not shown, and carries at an angled end portion of the pipe section 22, the suction means 12th
  • the suction means 12 allows a sealing engagement with a transport material surface 14, as shown schematically in the FIG. 1 is shown.
  • the suction means 12 and the transport material surface 14 form a fluid chamber 16, which can be at least partially evacuated to exert a suction force on the transport material surface 14 and which can be ventilated according to the invention to quickly cancel the suction force.
  • the suction means 12 is exemplarily provided with a circumferential, received in an annular groove, elastic sealing lip 18.
  • the sealing lip allows the compensation of small unevenness on the transport material surface 14 in order to ensure an at least almost vacuum-tight connection between the suction means 12 and the transport material surface 14.
  • the fluid chamber 16 is above a fluid bore 20 with a free inner cross section of the angled pipe section 22nd in a communicative connection.
  • the pipe section 22 is provided with an upper end according to FIG FIG. 1 received in a support body 24, which is part of the control panel 65.
  • the support body 24 has a in the Figures 2 and 3 Connection hole 26 shown in more detail, which is connected to a according to the Figures 2 and 3 upwardly facing support surface 28 opens.
  • the portion of the suction pipe formed by the communication hole 26 and the pipe portion 22 may also be referred to as the pipe portion 21.
  • a base plate 30 is arranged, which is sealingly received in the cylindrical sleeve-shaped housing portion 60 and thus limits the space bounded substantially by the suction hose 11 downwards.
  • the base plate 30 is penetrated by two spaced-apart recesses 32, 34.
  • the first recess is formed as a vacuum channel 32 and allows a communicating connection of the suction hose 11 with the connecting hole 26.
  • the second recess is formed as a supply air channel 34 and allows a communicating connection of the suction hose 11 with the environment.
  • a valve spool 36 is arranged linearly movable, which can be moved in and against the drawn movement direction 38.
  • valve slide 36 shown in detail is formed for example as a flat slide or plane parallel plate.
  • the valve spool 36 is of a vacuum control recess 40 and penetrated by a Zu poverty horraus strictly supraung 42.
  • the valve spool 36 has on a narrow side a pocket-shaped ventilation recess 44.
  • a first receiving bore 46 and a second receiving bore 48 are formed.
  • Pressure pins 50, 52 shown in more detail to be taken slidingly movable.
  • Each of the pressure pins 50, 52 is associated with a helical spring 54, 56 which is shown only schematically and which aligns the respective pressure pins 50, 52 in a preferred position, as described in US Pat FIG. 8 is shown.
  • the coil springs 54 and 56 are designed differently both in terms of their length and in terms of their spring constant. This ensures that the pressure pin 52 only temporarily rests against an inner wall of the housing portion 60, while the pressure pin 50 always comes to rest independently of the position of the valve spool 36 on the inner wall of the housing portion 60.
  • the pressure pins 50, 52 and the associated coil springs 54 and 56 form a force that, upon movement of the valve spool 36 from the operating position according to FIG. 8 in the operating position according to FIG. 10 provides a force threshold.
  • the force threshold is caused when the pressure pin 52 in the operating position of FIG. 9 comes into abutment on the housing portion 60 and formed with a significantly higher spring constant coil spring 56 in addition to the coil spring 54 must be compressed.
  • a cup-shaped housing cover 62 is attached, which may be screwed to the housing portion 60.
  • the housing cover 62 carries a first free end portion of the actuating means 64 protrudes from the Gescousedekkel 62 down and can be taken by a user, not shown by hand. The fingers of the user come to the free end of the actuating means 64 to the plant, while the user's palm of the user to the actuating means 64 opposite surface of the pipe section 22 comes to rest, whereby an actuating force on the actuating means 64 can be exercised.
  • the second free end region of the actuating means 64 is provided at the end with a rounding, which engages in the Zu poverty horrauslangung 42 of the valve spool 36.
  • the rounding allows implementation of the pivoting movement of the actuating means 64 in a linear movement of the valve spool 36th
  • the weight force of the transport material 14 adhering to the suction means can no longer be completely compensated by the vacuum lifting device 10, so that a lowering movement of the transport material 14 occurs.
  • the suction force exerted by the suction means 12 on the conveyed material surface 14 is reduced, so that the adhesive force of the suction means 12 is reduced. In this operating state, a lifting of the suction means 12 from the transport material surface 14 is possible in principle, but is hindered by the continued negative pressure in the fluid chamber 16.
  • the actuating means 64 is pivoted further in the direction of the pipe section 22.
  • the second pressure pin 52 comes into abutment against the inner wall of the housing portion 60, resulting in a sudden increase in force for the further movement of the actuating means 64. This is intended to prevent inadvertent actuation of the actuating means 64 in the locking position described in more detail below.
  • valve spool 36 With a reduction of the actuating force on the actuating means 64, the valve spool 36 is due to the restoring forces of the coil springs 54 and 56, which on the pressure pins 50 and 52 act from the position according to FIG. 10 in the position according to FIG. 9 or in the position according to FIG. 8 transferred, so that a new lifting of cargo can take place.
  • the bending moment in the pipe section 22 is reduced and the locking lever 68 pivots back from the blocking position, not shown, back into the illustrated neutral position, in which the actuating device 64 can be actuated such that the valve device 45 can be transferred to the blocking position, whereby the lifting process for the suction means 12 is facilitated.
  • the locking device is integrated in the control unit housing and the blocking of the actuating means takes place in the region of the pivot joint for the actuating means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Manipulator (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Claims (13)

  1. Dispositif de levage à vide comportant une conduite d'aspiration qui s'étend entre un raccordement au vide (17) et une ouverture (19) ; un moyen d'aspiration (12) qui sert à l'appui étanche sur des surfaces de produit de transport (14) et qui est monté côté extrémité sur la conduite d'aspiration et délimite l'ouverture (19) ; et un tuyau d'aspiration (11) de longueur variable qui délimite la conduite d'aspiration par section entre le moyen d'aspiration (12) et le raccordement au vide (17), ainsi qu'un dispositif de soupape (45) qui est réalisé pour régler une dépression dans le tuyau d'aspiration (11) ainsi que pour influencer une section d'écoulement libre de la conduite d'aspiration dans une section de conduite (21) entre le tuyau d'aspiration (11) et l'ouverture (19) et qui peut être réglé entre une position de blocage pour l'interruption de la section de conduite (21) et une position de libération pour la libération de la section de conduite (21), sachant que le dispositif de soupape (45) est réalisé de telle manière qu'il puisse être amené, indépendamment d'un contact du moyen d'aspiration (12) avec la surface de produit de transport (14), dans la position de blocage pour l'interruption de la section de conduite (21) afin de réduire dans la position de blocage une action de la dépression sur le moyen d'aspiration (12) et de faciliter un levage du moyen d'aspiration (12) du produit de transport (14), que le dispositif de soupape (45) est réalisé pour le réglage d'une section libre d'un canal d'air frais (34) afin d'influencer une liaison de communication du tuyau d'aspiration (11) pouvant être placé en dépression avec l'environnement et de permettre ainsi une compensation de pression au moins partielle entre la conduite d'aspiration et l'environnement, caractérisé en ce que le dispositif de soupape (45) est réalisé de telle manière que le canal d'air frais (34) soit fermé au moins presque complètement dans la position de blocage afin de permettre une constitution de dépression dans le tuyau d'aspiration (11).
  2. Dispositif de levage à vide selon la revendication 1, caractérisé en ce que le dispositif de soupape (45) est réalisé dans la position de blocage pour une aération du moyen d'aspiration (12) afin de garantir une réduction rapide de la dépression sur le moyen d'aspiration (12).
  3. Dispositif de levage à vide selon la revendication 1 ou 2, caractérisé en ce que le dispositif de soupape (45) est réalisé dans la position de blocage pour un courant d'air frais réglable par le canal d'air frais (34) dans le tuyau d'aspiration (11).
  4. Dispositif de levage à vide selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un moyen d'actionnement (64) en particulier un seul, pouvant être actionné manuellement est prévu pour la commande du dispositif de soupape (45).
  5. Dispositif de levage à vide selon la revendication 4, caractérisé en ce que le moyen d'actionnement (64) et/ou le dispositif de soupape (45) est disposé dans une partie de commande (58) agencée entre le tuyau d'aspiration (11) et le moyen d'aspiration (12).
  6. Dispositif de levage à vide selon la revendication 4, caractérisé en ce que le moyen d'actionnement (64) et/ou le dispositif de soupape (45) est disposé dans une partie de commande espacée de la conduite d'aspiration (11).
  7. Dispositif de levage à vide selon la revendication 6, caractérisé en ce que la partie de commande (58) est reliée à la conduite d'aspiration (11) et/ou au moyen d'aspiration (12) par au moins une conduite en particulier flexible.
  8. Dispositif de levage à vide selon l'une quelconque des revendications 4 à 7, caractérisé en ce qu'au moyen d'actionnement (64) est associé un moyen de force (54, 56) en particulier en ensemble à ressort pour l'orientation du dispositif de soupape (45) dans une position préférentielle prescriptible, sachant que le moyen de force (54, 56) est réalisé de telle manière que lors du déplacement du dispositif de soupape (45) en direction de la position de blocage, un seuil de force soit à surmonter.
  9. Dispositif de levage à vide selon l'une quelconque des revendications 4 à 8, caractérisé en ce qu'au moyen d'actionnement (64) est associé un dispositif de blocage qui est réalisé pour le blocage par section d'une course d'actionnement du moyen d'actionnement (64) afin d'empêcher une occupation de la position de blocage par le dispositif de soupape (45) lorsque la charge adhère au moyen d'aspiration (12).
  10. Dispositif de levage à vide selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de soupape (45) comporte un distributeur à tiroir qui présente un corps de base (30) traversé par un canal à vide (32) et un canal d'air frais (34) et un tiroir de commande en mouvement relatif par rapport à celui-ci, qui sert à influencer les sections libres du canal à vide (32) et du canal d'air frais (34) et est pourvu pour ce faire de manière appropriée d'un évidement de commande de vide (40), d'un évidement de commande d'air frais (42) et d'un évidement d'aération (44).
  11. Dispositif de levage à vide selon la revendication 9 ou 10, caractérisé en ce que le tiroir de commande (36) est logé au moins par endroits entre le corps de base (30) et un corps d'appui (24), sachant que le corps d'appui (24) est traversé par un perçage de liaison (26) communiquant avec l'ouverture (19), qui est disposé de telle manière qu'il puisse être amené en recouvrement au moins partiel alternativement avec l'évidement de commande de vide (40) et l'évidement d'aération (44).
  12. Dispositif de levage à vide selon la revendication 11, caractérisé en ce que l'évidement d'aération (44) est réalisé comme une poche sur un petit côté du tiroir de commande (36) afin de garantir dans la position de blocage une liaison de communication entre l'environnement et le perçage de liaison (26) dans le corps d'appui (24).
  13. Procédé de fonctionnement d'un dispositif de levage à vide (10), en particulier selon l'une quelconque des revendications précédentes, comportant un dispositif de soupape (45) destiné à influencer une dépression dans un tuyau d'aspiration (11) de longueur variable et une pression fluidique entre le tuyau d'aspiration (11) et un moyen d'aspiration (12), caractérisé par les étapes consistant à abaisser le produit de transport (14) : réduction de la dépression préparée dans le tuyau d'aspiration (11) par une source de dépression par mise à disposition d'air frais à l'aide du dispositif de soupape (45) afin de provoquer un mouvement d'abaissement du produit de transport (14), retrait du produit de transport (14), blocage de la liaison de communication entre le tuyau d'aspiration (11) et le moyen d'aspiration (12) par déplacement du dispositif de soupape (45) dans une position de blocage, aération du moyen d'aspiration (12) par amenée d'air ambiant par le dispositif de soupape, établissement d'une dépression dans le tuyau d'aspiration (11) par réduction de l'air frais amené au tuyau d'aspiration (11) à l'aide du dispositif de soupape (45) pendant l'aération du moyen d'aspiration (12) afin d'entraîner un levage automatique du moyen d'aspiration (12) du produit de transport (14).
EP09002731A 2009-02-26 2009-02-26 Dispositif de levage à vide et procédé de fonctionnement d'un dispositif de levage à vide Active EP2223881B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT09002731T ATE522467T1 (de) 2009-02-26 2009-02-26 Vakuum-hebevorrichtung und verfahren zum betreiben einer vakuum-hebevorrichtung
EP09002731A EP2223881B1 (fr) 2009-02-26 2009-02-26 Dispositif de levage à vide et procédé de fonctionnement d'un dispositif de levage à vide

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Application Number Priority Date Filing Date Title
EP09002731A EP2223881B1 (fr) 2009-02-26 2009-02-26 Dispositif de levage à vide et procédé de fonctionnement d'un dispositif de levage à vide

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EP2223881B1 true EP2223881B1 (fr) 2011-08-31

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023094686A1 (fr) * 2021-11-29 2023-06-01 Cobot Lift Aps Dispositif de levage automatisé comprenant une soupape de séparation
DE102021131288A1 (de) 2021-11-29 2023-06-01 DAL Real Estate Management GmbH Greifanordnung zum Anheben und Versetzen von Hebegut

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020111129B4 (de) * 2020-04-23 2022-02-24 J. Schmalz Gmbh Schlauchheber

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200615A (en) 1987-01-22 1988-08-10 Portec Inc Suction actuated lifting apparatus
DE10038013B4 (de) * 2000-08-04 2005-11-03 Albert Fezer Maschinenfabrik Gmbh Steuergerät für eine Vakuum-Hebevorrichtung
SE529625C2 (sv) 2006-02-17 2007-10-09 Pronomic Ab Vakuumlyftanordning

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023094686A1 (fr) * 2021-11-29 2023-06-01 Cobot Lift Aps Dispositif de levage automatisé comprenant une soupape de séparation
DE102021131288A1 (de) 2021-11-29 2023-06-01 DAL Real Estate Management GmbH Greifanordnung zum Anheben und Versetzen von Hebegut
DE102021131288B4 (de) 2021-11-29 2024-03-21 DAL Real Estate Management GmbH Greifanordnung zum Anheben und Versetzen von Hebegut

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ATE522467T1 (de) 2011-09-15
EP2223881A1 (fr) 2010-09-01

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