EP3558548B1 - Method and device for conveying viscous material - Google Patents

Method and device for conveying viscous material Download PDF

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Publication number
EP3558548B1
EP3558548B1 EP17771386.4A EP17771386A EP3558548B1 EP 3558548 B1 EP3558548 B1 EP 3558548B1 EP 17771386 A EP17771386 A EP 17771386A EP 3558548 B1 EP3558548 B1 EP 3558548B1
Authority
EP
European Patent Office
Prior art keywords
container
follower plate
wall
upper rim
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17771386.4A
Other languages
German (de)
French (fr)
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EP3558548A1 (en
Inventor
Thomas Hausner
Siegmund Oberhofer
Gerrit ENDERLE
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.)
Atlas Copco IAS GmbH
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Atlas Copco IAS GmbH
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Publication date
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Publication of EP3558548A1 publication Critical patent/EP3558548A1/en
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Publication of EP3558548B1 publication Critical patent/EP3558548B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
    • B67D7/0227—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants by an ejection plunger
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/58—Arrangements of pumps
    • B67D7/62—Arrangements of pumps power operated
    • B67D7/64—Arrangements of pumps power operated of piston type
    • B67D7/645—Barrel pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs
    • F04B23/025—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir
    • F04B23/028—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir the pump being mounted on top of the reservoir
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections

Definitions

  • the invention relates to a device and a method for conveying viscous material according to
  • Devices for conveying viscous material are particularly widely used in motor vehicle manufacturing, where viscous adhesives, sealants or insulating materials have to be conveyed from a drum to an application station in order to be able to apply them to a body component.
  • the follower plate rests on the surface of the viscous material in the barrel and is tracked by the lifting device to the decreasing material level until the barrel is empty.
  • the lifting device then lifts the follower plate out of the barrel so that the empty barrel can be exchanged for a full barrel.
  • the follower plate must be inserted into the filled barrel, which is open at the top, until it rests on the surface of the viscous material.
  • a device of the type mentioned which has a protective device which consists of a housing which completely accommodates the container and the conveyor device. This housing is intended to provide protection against tampering with the device during operation.
  • a drum pump is known which has a protective device which prevents foreign bodies from entering the drum.
  • the invention is based on the idea of largely safely enclosing the area in which there is a risk of injury, so that operating personnel cannot work in this area, namely in the area of the upper edge of the container, when the follower plate is inserted into the container.
  • a protective body is provided for this purpose, which encloses both the follower plate and the container in the area of the upper edge of the container when the follower plate is inserted into the container, so that at the critical point in time when the follower plate is inserted into the container, the upper edge of the container is not exposed at any point, but is covered at least radially, so that it is not possible to reach into the container from the outside.
  • At least one switch is provided for switching off the drive unit of the lifting device, which is actuated when the upper edge of the container is at least partially exposed by removing the protective body during insertion of the follower plate into the container. If the protective body is improperly removed during the insertion of the follower plate into the container, the switch is actuated and switches off the drive unit, so that the insertion the follower plate into the container is stopped and there is no longer a risk of injury.
  • the protective body is a stationary housing that is open at the bottom and has a door on the front side, which actuates the at least one switch when it is opened, or it is a hood that rests on the follower plate, which has a cover wall that rests on an upper side of the follower plate and has a circumferential side wall that extends downwards from the top wall, which surrounds the follower plate and extends further downwards beyond an underside of the follower plate and is designed to enclose the upper edge of the container, with at least one first switch for switching off the drive unit in the area is arranged between the top wall and the top of the follower plate, which is actuated when lifting the hood from the follower plate.
  • the door is required in order to be able to push the empty container out of the housing and the full container into the housing when exchanging an empty container for a full container.
  • the door expediently extends upwards from a lower edge on the front side of the housing at least to the upper edge of the container.
  • the housing can also advantageously have a housing cover that preferably overlaps the follower plate, so that the upper edge of the container cannot be attacked from above when the follower plate is inserted into the container.
  • the housing cover expediently has an opening through which the feed pump and/or feed lines of the feed pump and/or holding means are passed, which connect the follower plate to the lifting device.
  • the at least one first switch is preferably arranged in or on the top wall of the hood.
  • the at least one first switch is already actuated when the hood is lifted off the follower plate. It does not necessarily have to be lifted so far that the upper edge of the container is exposed. However, exposing the upper edge of the container through the hood while the follower plate is being inserted into the container necessarily requires the hood to be lifted off the follower plate, so that the at least one first switch is actuated.
  • the feature of the partial exposure of the upper edge of the container could be achieved by the feature of lifting the hood if the second embodiment were restricted replace from follower plate.
  • At least one second switch for switching off the drive unit is preferably arranged in the area between the side wall and the hood and the container wall, which is actuated when the hood is lifted off the container.
  • the at least one second switch is preferably arranged in or on the side wall of the hood. It is preferred that the at least one first switch and the at least one second switch are linked to one another by a logical AND and the drive unit is switched off when the or at least one of the first switches and the or at least one of the second switches is actuated.
  • the follower plate approaches the container without the side wall of the hood gripping the upper edge of the container, there is no risk of injury and the follower plate can continue to be lowered, since the at least one first switch is not actuated due to the hood resting on the follower plate. Encloses the hood with its side wall, the upper edge of the container, the at least one second switch is not actuated, and a lowering of the follower plate in the container can take place, even if the follower plate Material level is further lowered below in the container, thereby losing contact with the hood and the at least one first switch is thereby actuated.
  • a plurality of first switches and/or a plurality of second switches are preferably provided.
  • the first switches are linked to one another by a logical OR, just as the second switches are linked to one another by a logical OR. It is then sufficient if only one of the first switches and one of the second switches is actuated in order to switch off the drive unit.
  • the side wall is expediently provided with a plurality of guide ribs projecting radially inwards for contact with an outer surface of the container wall.
  • the guide ribs each have a ramp, in the area of which their height, measured in the radial direction, reduces towards a lower end, so that the hood centers itself when placed on the upper edge of the container.
  • the devices 10, 110 shown in the drawing are used to convey viscous material, such as adhesive, sealant or insulating material, from a barrel-like container 12, which has a container bottom 14 and a container bottom 14 running all the way around and extending upwards from the container bottom 14 to an upper container edge 16 has extending, cylinder jacket-shaped container wall 18 and is open at the top edge 16 of the container.
  • the devices 10, 110 also have a lifting device 22 mounted on a mounting surface 20 on which the container 12 is also placed, which has a drive unit (not shown in detail) that has one or more pneumatic or hydraulic cylinders, one or more spindle drives or one or can have several electric linear drives, and has holding rods 24 that can be moved in the vertical direction by means of the drive unit.
  • a follower plate 26 is fastened to the support rods 24 and has a material outlet 28 to which a feed pump 30 for the viscous material is connected.
  • the follower plate 26 is inserted from above into the container 12 until it rests on the surface of the material and is in sealing contact with the inner surface of the container wall 18 facing it.
  • the follower plate is moved downwards by means of the drive unit, following the surface of the material, until the container 12 is emptied. Then the follower plate 26 is raised by the drive unit until it is pulled out of the container 12 and the container 12 can be exchanged for a full container.
  • a protective device 32, 132 is provided which prevents an operator from reaching between the follower plate 26 and the upper edge 16 of the container when inserting the follower plate 26 into the container 12 and injuring himself as a result.
  • the protective devices 32, 132 are described in more detail below.
  • the protective device 32 has a protective body in the form of a cuboid housing 34 .
  • the housing 34 is open at the bottom, so that the container 12 can protrude from below, and rests on support feet 36, which in turn are attached to the installation surface 20.
  • the housing 34 has a side wall 38 on each of three sides, while a door 42 hinged to one of the side walls 38 and having a transparent viewing window 44 made of Plexiglas, for example, is arranged on a front side 40 .
  • the side walls 38 and the door 42 each extend from a lower edge 46 of the housing 34, which is located below the upper edge of the container 16, upwards beyond the upper edge of the container 16 and thus enclose the upper edge of the container 16. It is also possible that the side walls 38 and the door 42 do not extend down to the same height.
  • the housing 34 is partially closed at the top by a housing cover 48 which, starting from the side walls 38 and the door 42, extends a little inwards and leaves an opening 50 free, from which the feed pump 30 and the support rods 24 protrude.
  • the diameter of the opening 50 is approximately the same size as the diameter of the follower plate 26.
  • a switch 52 is arranged in the area of the door 42, which is actuated when the door 42 is opened and switches off the drive unit, so that a movement of the follower plate 26 is stopped.
  • a displacement of the follower plate 26 and in particular an insertion of the follower plate 26 into the container 12 can therefore only take place when the door 42 is closed and the upper edge of the container 16 is surrounded by the housing 34 so that there is no risk of injury due to a part of the body being trapped between the upper edge of the container 16 and the follower plate 26 is made.
  • the top rim 16 of the container is partially exposed by opening the door 42, the movement of the follower plate 26 is stopped.
  • the protective device 132 is designed differently than the protective device 32 of the first embodiment. It has a hood 134 which has a top wall 138 resting on a top side 136 of the follower plate 26 and a side wall 140 extending downwards from the top wall 138 and running around the circumference.
  • the top wall 138 does not completely cover the follower plate 26 but leaves an opening 142 free through which the feed pump 30 and the support rods 24 can reach.
  • the side wall 140 extends further down beyond an underside of the follower plate 26 facing away from the upper side 136 and has such a clear width that it can also enclose the container 12 at the upper edge 16 of the container.
  • the clear width is defined by four guide ribs 144 which are arranged at equal angular distances from one another and protrude inwards from the side wall 140 and which are intended to rest on an outer surface 146 facing away from the inner surface of the container wall 18 .
  • the guide ribs 144 each have a ramp 148 towards the bottom, so that the clear width increases towards the bottom in that the height of the guide ribs 144 measured in the radial direction decreases continuously towards their lower end 150 .
  • hood 134 rests on the follower plate 26 and its side wall 140 surrounds the follower plate 26 all around, it is almost impossible to pinch a hand between the follower plate 26 and the upper edge 16 of the container when inserting the follower plate 26 into the container 12 . In order to be able to intervene in this area, the hood 134 must be lifted off the follower plate 26 . In order to ensure the safety of device 110 when inserting follower plate 26 into container 12, two first switches 152 for switching off the drive unit are arranged on top wall 138, which are actuated when hood 134 is in the area of the respective first switch 152 from the follower plate 26 is lifted.
  • the invention relates to a device 10, 110 for conveying viscous material from a barrel-like container 12, which has a container bottom 14 and a peripheral container wall 18 that extends from the container bottom 14 to a container top edge 16 and is open at the container top edge 16 a follower plate 26, which has a material outlet 28 connected to a feed pump 30, for closing the container 12, wherein the follower plate 26 can be moved up and down in the container 12 with sealing contact on an inner surface of the container wall 18 facing it, and with a lifting device 22 for lifting and Lowering the follower plate 26, the lifting device 22 having a drive unit.
  • a protective device 32, 132 is provided with a protective body 34, 134, which is arranged with respect to the follower plate 26 and the container 12 such that when the follower plate 26 is inserted into the container 12, it protects the follower plate 26 on the one hand and the container 12 on the other in the region of the upper edge of the container 16.
  • the protective device 32, 132 also has at least one switch 52, 152, 154 for switching off the drive unit if the upper edge of the container 16 is at least partially uncovered by the protective body 34, 134 during the insertion of the follower plate 26 into the container 12 .
  • a protective device 132 is provided with a hood 134 designed as a protective body, wherein the Hood 134 has a top wall 138 resting on an upper side 136 of the follower plate 26 and a side wall 140 extending downwards from the top wall 138, circumferentially and surrounding the follower plate 26, which extends further downwards beyond an underside of the follower plate 26 and designed to enclose the upper edge of the container 16, and that at least one first switch 152 for switching off the drive unit is arranged in the area between the top wall 138 and the top side 136 of the follower plate 26 and preferably in or on the top wall 138 and when the hood 134 is lifted from the Follower plate 26 is actuated.

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Fördern von viskosem Material gemäßThe invention relates to a device and a method for conveying viscous material according to

Oberbegriff des Anspruchs 1 und 12. Vorrichtungen zum Fördern von viskosem Material (vgl. zum Beispiel DE 10 2004 A1 ) finden insbesondere breite Anwendung in der Kraftfahrzeugfertigung, bei der viskose Klebstoffe, Dichtstoffe oder Dämmstoffe aus einem Fass zu einer Auftragsstation gefördert werden müssen, um sie auf ein Karosseriebauteil auftragen zu können. Dabei ruht die Folgeplatte auf der Oberfläche des im Fass befindlichen viskosen Materials und wird mittels der Hebeeinrichtung dem abnehmenden Materialpegel nachgeführt, bis das Fass entleert ist. Anschließend hebt die Hebeeinrichtung die Folgeplatte aus dem Fass heraus, so dass das leere Fass gegen ein volles Fass getauscht werden kann. Zur erneuten Aufnahme des Förderprozesses muss die Folgeplatte in das nach oben offene, gefüllte Fass eingeführt werden, bis sie auf der Oberfläche des viskosen Materials aufliegt. Dies erfolgt durch Absenken der Folgeplatte mittels der Hebeeinrichtung. Da die Folgeplatte dichtend an der Innenfläche der Wand des Fasses anliegen muss, erfordert das Einführen der Folgeplatte in das Fass einiges Fingerspitzengefühl, so dass der Fasswechsel von geschultem Fachpersonal vorgenommen werden sollte. Insbesondere dann, wenn unerfahrenes und nicht hinreichend geschultes Personal zum Einsatz kommt, besteht beim Einführen der Folgeplatte in das Fass die Gefahr, dass sich Arbeiter Quetschungen zufügen können, wenn sie unvorschriftsmäßig am Fassoberrand oder an der Folgeplatte hantieren.Preamble of claims 1 and 12. Devices for conveying viscous material (cf. e.g DE 10 2004 A1 ) are particularly widely used in motor vehicle manufacturing, where viscous adhesives, sealants or insulating materials have to be conveyed from a drum to an application station in order to be able to apply them to a body component. The follower plate rests on the surface of the viscous material in the barrel and is tracked by the lifting device to the decreasing material level until the barrel is empty. The lifting device then lifts the follower plate out of the barrel so that the empty barrel can be exchanged for a full barrel. To restart the conveying process, the follower plate must be inserted into the filled barrel, which is open at the top, until it rests on the surface of the viscous material. This is done by lowering the follower plate using the lifting device. Since the follower plate has to lie tightly against the inner surface of the wall of the keg, inserting the follower plate into the keg requires a certain amount of finesse, so that the keg should be changed by trained specialists. In particular, when inexperienced and insufficiently trained personnel are used, there is a risk when inserting the follower plate into the barrel that workers can injure themselves if they improperly handle the upper edge of the barrel or the follower plate.

Aus der DE 10 2005 049 805 A1 ist eine Vorrichtung der eingangs genannten Art bekannt, die eine Schutzeinrichtung aufweist, welche aus einem Gehäuse besteht, das den Behälter und die Fördervorrichtung vollständig aufnimmt. Dieses Gehäuse soll einen Schutz gegen Eingriff in die Vorrichtung während des Betriebs bieten. Zudem ist aus der DE 10 2013 103 734 A1 eine Fasspumpe bekannt, die eine Schutzvorrichtung aufweist, die verhindert, dass Fremdkörper in das Fass gelangen.From the DE 10 2005 049 805 A1 a device of the type mentioned is known which has a protective device which consists of a housing which completely accommodates the container and the conveyor device. This housing is intended to provide protection against tampering with the device during operation. In addition, from the DE 10 2013 103 734 A1 a drum pump is known which has a protective device which prevents foreign bodies from entering the drum.

Es ist daher Aufgabe der Erfindung, eine Vorrichtung der eingangs genannten Art derart weiterzubilden, dass die Verletzungsgefahr beim Bedienpersonal während eines Behälterwechsels verringert wird.It is therefore the object of the invention to further develop a device of the type mentioned at the outset in such a way that the risk of injury to the operating personnel during a container change is reduced.

Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung und ein Verfahren mit den Merkmalen des Anspruchs 1 bzw. 12 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der abhängigen Ansprüche.According to the invention, this object is achieved by a device and a method having the features of claims 1 and 12, respectively. Advantageous developments of the invention are the subject matter of the dependent claims.

Der Erfindung liegt der Gedanke zugrunde, den Bereich, in dem Verletzungsgefahr herrscht, weitgehend sicher einzuschließen, so dass Bedienpersonal in diesem Bereich, nämlich im Bereich des Behälteroberrands, nicht hantieren kann, wenn die Folgeplatte in den Behälter eingeführt wird. Zu diesem Zweck ist ein Schutzkörper vorgesehen, der beim Einführen der Folgeplatte in den Behälter sowohl die Folgeplatte als auch den Behälter im Bereich des Behälteroberrands rings umschließt, so dass zum kritischen Zeitpunkt des Einführens der Folgeplatte in den Behälter der Behälteroberrand an keiner Stelle freiliegt, sondern zumindest radial abgedeckt ist, so dass nicht von außen in den Behälter eingegriffen werden kann. Zudem ist mindestens ein Schalter zum Abschalten der Antriebseinheit der Hebeeinrichtung vorgesehen, der dann betätigt wird, wenn während des Einführens der Folgeplatte in den Behälter der Behälteroberrand zumindest teilweise durch Entfernen des Schutzkörpers freigelegt wird. Wird der Schutzkörper während des Einführens der Folgeplatte in den Behälter unvorschriftsmäßig entfernt, so wird der Schalter betätigt und schaltet die Antriebseinheit ab, so dass das Einführen der Folgeplatte in den Behälter gestoppt wird und keine Verletzungsgefahr mehr besteht.The invention is based on the idea of largely safely enclosing the area in which there is a risk of injury, so that operating personnel cannot work in this area, namely in the area of the upper edge of the container, when the follower plate is inserted into the container. A protective body is provided for this purpose, which encloses both the follower plate and the container in the area of the upper edge of the container when the follower plate is inserted into the container, so that at the critical point in time when the follower plate is inserted into the container, the upper edge of the container is not exposed at any point, but is covered at least radially, so that it is not possible to reach into the container from the outside. In addition, at least one switch is provided for switching off the drive unit of the lifting device, which is actuated when the upper edge of the container is at least partially exposed by removing the protective body during insertion of the follower plate into the container. If the protective body is improperly removed during the insertion of the follower plate into the container, the switch is actuated and switches off the drive unit, so that the insertion the follower plate into the container is stopped and there is no longer a risk of injury.

Erfindungsgemäß ist der Schutzkörper ein ortsfest angeordnetes, nach unten offenes Gehäuse, das an einer Vorderseite eine Tür aufweist, bei deren Öffnen der mindestens eine Schalter betätigt wird oder er ist eine auf der Folgeplatte aufliegende Haube, die eine auf einer Oberseite der Folgeplatte aufliegende Deckenwand und eine sich von der Deckenwand nach unten erstreckende, rings umlaufende Seitenwand aufweist, welche die Folgeplatte rings umschließt und sich über eine Unterseite der Folgeplatte hinaus weiter nach unten erstreckt und zum Umschließen des Behälteroberrands ausgebildet ist, wobei mindestens ein erster Schalter zum Abschalten der Antriebseinheit im Bereich zwischen der Deckenwand und der Oberseite der Folgeplatte angeordnet ist, der beim Abheben der Haube von der Folgeplatte betätigt wird. Im ersteren Fall ist die Tür erforderlich, um beim Austausch eines entleerten Behälters gegen einen vollen Behälter den leeren Behälter aus dem Gehäuse heraus und den vollen Behälter in das Gehäuse hinein schieben zu können. Zu diesem Zweck erstreckt sich die Tür zweckmäßig von einem unteren Rand an der Vorderseite des Gehäuses mindestens bis zum Behälteroberrand nach oben. Bei geöffneter Tür ist die Antriebseinheit der Hebeeinrichtung mittels des Schalters abgeschaltet und ein Anheben oder Absenken der Folgeplatte ist nicht möglich.According to the invention, the protective body is a stationary housing that is open at the bottom and has a door on the front side, which actuates the at least one switch when it is opened, or it is a hood that rests on the follower plate, which has a cover wall that rests on an upper side of the follower plate and has a circumferential side wall that extends downwards from the top wall, which surrounds the follower plate and extends further downwards beyond an underside of the follower plate and is designed to enclose the upper edge of the container, with at least one first switch for switching off the drive unit in the area is arranged between the top wall and the top of the follower plate, which is actuated when lifting the hood from the follower plate. In the former case, the door is required in order to be able to push the empty container out of the housing and the full container into the housing when exchanging an empty container for a full container. For this purpose, the door expediently extends upwards from a lower edge on the front side of the housing at least to the upper edge of the container. When the door is open, the drive unit of the lifting device is switched off using the switch and it is not possible to raise or lower the follower plate.

Zur ortsfesten Anordnung des Gehäuses wird bevorzugt, dass es auf Stützfüßen ruht, die wiederum auf derselben Aufstellfläche aufgestellt werden können, auf der auch der Behälter aufgestellt wird. Das Gehäuse kann zudem vorteilhaft eine vorzugsweise die Folgeplatte übergreifende Gehäusedecke aufweisen, so dass auch von oben beim Einführen der Folgeplatte in den Behälter nicht an den Behälteroberrand angegriffen werden kann. Die Gehäusedecke weist zweckmäßig eine Öffnung auf, durch die die Förderpumpe und/oder Zuleitungen der Förderpumpe und/oder Haltemittel durchgeführt sind, die die Folgeplatte mit der Hebeeinrichtung verbinden. Entscheidend bei dieser erfindungsgemäßen Weiterbildung ist lediglich, dass sich die Gehäusedecke über den Behälteroberrand und ein Stück weit in radialer Richtung auf die Folgeplatte zu oder über die Folgeplatte erstreckt.For the stationary arrangement of the housing, it is preferred that it rests on support feet, which in turn can be set up on the same installation surface on which the container is also set up. The housing can also advantageously have a housing cover that preferably overlaps the follower plate, so that the upper edge of the container cannot be attacked from above when the follower plate is inserted into the container. The housing cover expediently has an opening through which the feed pump and/or feed lines of the feed pump and/or holding means are passed, which connect the follower plate to the lifting device. The only decisive factor in this development according to the invention is that the housing cover extends over the upper edge of the container and extends a little in the radial direction towards or over the follower plate.

Im zweiten Fall ist der mindestens eine erste Schalter vorzugsweise in oder an der Deckenwand der Haube angeordnet. Bei diesem Ausführungsbeispiel wird der mindestens eine erste Schalter schon dann betätigt, wenn die Haube von der Folgeplatte abgehoben wird. Sie muss dabei nicht zwingend so weit abgehoben werden, dass der Behälteroberrand freigelegt wird. Ein Freilegen des Behälteroberrands durch die Haube während des Einführens der Folgeplatte in den Behälter erfordert aber zwingend ein Abheben der Haube von der Folgeplatte, so dass der mindestens eine erste Schalter betätigt wird. Da beim zweiten Ausführungsbeispiel das mindestens teilweise Freilegen des Behälteroberrands beim Einführen der Folgeplatte in den Behälter zwingend ein Abheben der Haube von der Folgeplatte erfordert, ließe sich bei einer Einschränkung auf das zweite Ausführungsbeispiel das Merkmal des teilweisen Freilegens des Behälteroberrands durch das Merkmal des Abhebens der Haube von der Folgeplatte ersetzen.In the second case, the at least one first switch is preferably arranged in or on the top wall of the hood. In this exemplary embodiment, the at least one first switch is already actuated when the hood is lifted off the follower plate. It does not necessarily have to be lifted so far that the upper edge of the container is exposed. However, exposing the upper edge of the container through the hood while the follower plate is being inserted into the container necessarily requires the hood to be lifted off the follower plate, so that the at least one first switch is actuated. Since in the second embodiment the at least partial exposure of the upper edge of the container when inserting the follower plate into the container necessarily requires the hood to be lifted off the follower plate, the feature of the partial exposure of the upper edge of the container could be achieved by the feature of lifting the hood if the second embodiment were restricted replace from follower plate.

Vorzugsweise ist mindestens ein zweiter Schalter zum Abschalten der Antriebseinheit im Bereich zwischen der Seitenwand und der Haube und der Behälterwand angeordnet, der beim Abheben der Haube vom Behälter betätigt wird. Der mindestens eine zweite Schalter ist vorzugsweise in oder an der Seitenwand der Haube angeordnet. Dabei wird bevorzugt, dass der mindestens eine erste Schalter und der mindestens eine zweite Schalter durch ein logisches UND miteinander verknüpft sind und die Antriebseinheit abgeschaltet wird, wenn der oder mindestens einer der ersten Schalter und der oder mindestens einer der zweiten Schalter betätigt wird. Nähert sich die Folgeplatte dem Behälter ohne dass die Seitenwand der Haube den Behälteroberrand umgreift, so besteht noch keine Verletzungsgefahr und das Absenken der Folgeplatte kann fortgesetzt werden, da der mindestens eine erste Schalter aufgrund des Aufliegens der Haube auf der Folgeplatte nicht betätigt ist. Umschließt die Haube mit ihrer Seitenwand den Behälteroberrand, so wird der mindestens eine zweite Schalter nicht betätigt, und ein Absenken der Folgeplatte im Behälter kann erfolgen, auch wenn die Folgeplatte dem Materialpegel folgend im Behälter weiter abgesenkt wird, dabei den Kontakt zur Haube verliert und der mindestens eine erste Schalter dadurch betätigt wird.At least one second switch for switching off the drive unit is preferably arranged in the area between the side wall and the hood and the container wall, which is actuated when the hood is lifted off the container. The at least one second switch is preferably arranged in or on the side wall of the hood. It is preferred that the at least one first switch and the at least one second switch are linked to one another by a logical AND and the drive unit is switched off when the or at least one of the first switches and the or at least one of the second switches is actuated. If the follower plate approaches the container without the side wall of the hood gripping the upper edge of the container, there is no risk of injury and the follower plate can continue to be lowered, since the at least one first switch is not actuated due to the hood resting on the follower plate. Encloses the hood with its side wall, the upper edge of the container, the at least one second switch is not actuated, and a lowering of the follower plate in the container can take place, even if the follower plate Material level is further lowered below in the container, thereby losing contact with the hood and the at least one first switch is thereby actuated.

Um ein Entfernen der Haube von der Folgeplatte bzw. vom Behälteroberrand schneller und besser erkennen zu können, sind vorzugsweise mehrere erste Schalter und/oder mehrere zweite Schalter vorgesehen. Dabei sind die ersten Schalter durch ein logisches ODER miteinander verknüpft, ebenso wie die zweiten Schalter durch ein logisches ODER miteinander verknüpft sind. Es genügt dann, wenn nur einer der ersten Schalter und einer der zweiten Schalter betätigt wird, um die Antriebseinheit abzuschalten.In order to be able to detect removal of the hood from the follower plate or from the upper edge of the container more quickly and better, a plurality of first switches and/or a plurality of second switches are preferably provided. The first switches are linked to one another by a logical OR, just as the second switches are linked to one another by a logical OR. It is then sufficient if only one of the first switches and one of the second switches is actuated in order to switch off the drive unit.

Um die Haube am Behälteroberrand besser positionieren zu können, ist die Seitenwand zweckmäßig mit mehreren radial nach innen vorstehenden Führungsrippen zur Anlage an einer Außenfläche der Behälterwand versehen. Desweiteren wird bevorzugt, dass die Führungsrippen jeweils eine Auflaufschräge aufweisen, in deren Bereich sich ihre in radialer Richtung gemessene Höhe zu einem unteren Ende hin reduziert, so dass sich die Haube beim Aufsetzen auf den Behälteroberrand selbst zentriert.In order to be able to better position the hood on the upper edge of the container, the side wall is expediently provided with a plurality of guide ribs projecting radially inwards for contact with an outer surface of the container wall. Furthermore, it is preferred that the guide ribs each have a ramp, in the area of which their height, measured in the radial direction, reduces towards a lower end, so that the hood centers itself when placed on the upper edge of the container.

Im Folgenden wird die Erfindung anhand zweier in der Zeichnung schematisch dargestellter Ausführungsbeispiele näher erläutert. Es zeigen

Fig. 1a, b, c
eine Vorrichtung zum Fördern von viskosem Material gemäß einem ersten Ausführungsbeispiel in zwei perspektivischen Ansichten und einer Vorderansicht;
Fig. 2a, b
eine Vorrichtung zum Fördern von viskosem Material gemäß einem zweiten Ausführungsbeispiel mit vom Behälter abgehobener Folgeplatte in einer perspektivischen Ansicht und einer Vorderansicht;
Fig. 3a, b
die Vorrichtung gemäß Fig. 2a, b mit in den Behälter eingeführter Folgeplatte in einer perspektivischen Ansicht und einer Vorderansicht und
Fig. 4
eine Darstellung der Vorrichtung gemäß Fig. 2b teilweise im Schnitt.
The invention is explained in more detail below with reference to two exemplary embodiments shown schematically in the drawing. Show it
Figures 1a,b,c
a device for conveying viscous material according to a first embodiment in two perspective views and a front view;
Fig. 2a, b
a device for conveying viscous material according to a second embodiment with the follower plate lifted off the container in a perspective view and a front view;
3a, b
the device according to Fig. 2a, b with a follower plate inserted into the container in a perspective view and a front view and
4
a representation of the device according to FIG Figure 2b partially on average.

Die in der Zeichnung dargestellten Vorrichtungen 10, 110 dienen dem Fördern von viskosem Material, wie beispielsweise Klebstoff, Dichtstoff oder Dämmstoff, aus einem fassartigen Behälter 12, der einen Behälterboden 14 sowie eine rings umlaufende, sich vom Behälterboden 14 bis zu einem Behälteroberrand 16 nach oben erstreckende, zylindermantelförmige Behälterwand 18 aufweist und am Behälteroberrand 16 offen ist. Die Vorrichtungen 10, 110 weisen zudem eine auf einer Aufstellfläche 20, auf die auch der Behälter 12 aufgestellt ist, montierte Hebeeinrichtung 22 auf, die eine nicht näher dargestellte Antriebseinheit, die einen oder mehrere Pneumatik- oder Hydraulikzylinder, einen oder mehrere Spindeltriebe oder einen oder mehrere elektrische Linearantriebe aufweisen kann, sowie mittels der Antriebseinheit in vertikaler Richtung bewegliche Haltestangen 24 aufweist. An den Haltestangen 24 ist eine Folgeplatte 26 befestigt, die einen Materialauslass 28 aufweist, an den eine Förderpumpe 30 für das viskose Material angeschlossen ist. Zum Fördern des viskosen Materials wird die Folgeplatte 26 von oben in den Behälter 12 eingeführt, bis sie auf der Oberfläche des Materials aufliegt und ringsum dichtend an der ihr zugewandten Innenfläche der Behälterwand 18 anliegt. Bei abnehmendem Materialpegel wird die Folgeplatte der Oberfläche des Materials folgend mittels der Antriebseinheit nach unten bewegt, bis der Behälter 12 entleert ist. Sodann wird die Folgeplatte 26 mittels der Antriebseinheit angehoben, bis sie aus dem Behälter 12 herausgezogen ist und der Behälter 12 gegen einen vollen Behälter ausgetauscht werden kann.The devices 10, 110 shown in the drawing are used to convey viscous material, such as adhesive, sealant or insulating material, from a barrel-like container 12, which has a container bottom 14 and a container bottom 14 running all the way around and extending upwards from the container bottom 14 to an upper container edge 16 has extending, cylinder jacket-shaped container wall 18 and is open at the top edge 16 of the container. The devices 10, 110 also have a lifting device 22 mounted on a mounting surface 20 on which the container 12 is also placed, which has a drive unit (not shown in detail) that has one or more pneumatic or hydraulic cylinders, one or more spindle drives or one or can have several electric linear drives, and has holding rods 24 that can be moved in the vertical direction by means of the drive unit. A follower plate 26 is fastened to the support rods 24 and has a material outlet 28 to which a feed pump 30 for the viscous material is connected. To convey the viscous material, the follower plate 26 is inserted from above into the container 12 until it rests on the surface of the material and is in sealing contact with the inner surface of the container wall 18 facing it. As the level of material decreases, the follower plate is moved downwards by means of the drive unit, following the surface of the material, until the container 12 is emptied. Then the follower plate 26 is raised by the drive unit until it is pulled out of the container 12 and the container 12 can be exchanged for a full container.

Bei den Vorrichtungen 10, 110 gemäß beider Ausführungsbeispiele ist jeweils eine Schutzeinrichtung 32, 132 vorgesehen, die verhindert, dass eine Bedienperson beim Einführen der Folgeplatte 26 in den Behälter 12 zwischen die Folgeplatte 26 und den Behälteroberrand 16 eingreifen und sich dadurch verletzen kann. Die Schutzeinrichtungen 32, 132 werden im Folgenden näher beschrieben.In the devices 10, 110 according to both exemplary embodiments, a protective device 32, 132 is provided which prevents an operator from reaching between the follower plate 26 and the upper edge 16 of the container when inserting the follower plate 26 into the container 12 and injuring himself as a result. The protective devices 32, 132 are described in more detail below.

Beim in Fig. 1a bis 1c dargestellten ersten Ausführungsbeispiel weist die Schutzeinrichtung 32 einen Schutzkörper in Form eines quaderförmigen Gehäuses 34 auf. Das Gehäuse 34 ist nach unten offen, so dass der Behälter 12 von unten hineinragen kann, und ruht auf Stützfüßen 36, die wiederum auf der Aufstellfläche 20 befestigt sind. Das Gehäuse 34 weist an drei Seiten jeweils eine Seitenwand 38 auf, während an einer Vorderseite 40 eine an einer der Seitenwände 38 angelenkte Tür 42 mit einem durchsichtigen Sichtfenster 44 beispielsweise aus Plexiglas angeordnet ist. Die Seitenwände 38 und die Tür 42 erstrecken sich jeweils von einem unteren Rand 46 des Gehäuses 34, der sich unterhalb des Behälteroberrands 16 befindet, nach oben bis über den Behälteroberrand 16 hinaus und umschließen damit den Behälteroberrand 16. Dabei ist es auch möglich, dass sich die Seitenwände 38 und die Tür 42 nicht bis zur selben Höhe nach unten erstrecken. Nach oben ist das Gehäuse 34 teilweise durch eine Gehäusedecke 48 geschlossen, die sich ausgehend von den Seitenwänden 38 und der Tür 42 jeweils ein Stück weit nach innen erstreckt und dabei eine Öffnung 50 freilässt, aus der die Förderpumpe 30 und die Haltestangen 24 herausragen. Im gezeigten Ausführungsbeispiel ist der Durchmesser der Öffnung 50 etwa gleich groß wie der Durchmesser der Folgeplatte 26. Es ist jedoch auch möglich, den Durchmesser der Öffnung 50 kleiner auszuführen als den Durchmesser der Folgeplatte 26, so dass diese ringsum ein Stück weit von der Gehäusedecke 48 überdeckt wird. Im Bereich der Tür 42 ist ein Schalter 52 angeordnet, der beim Öffnen der Tür 42 betätigt wird und die Antriebseinheit ausschaltet, so dass eine Bewegung der Folgeplatte 26 angehalten wird. Ein Verfahren der Folgeplatte 26 und insbesondere ein Einführen der Folgeplatte 26 in den Behälter 12 kann somit nur dann erfolgen, wenn die Tür 42 geschlossen ist und der Behälteroberrand 16 vom Gehäuse 34 rings umschlossen wird, so dass keine Verletzungsgefahr durch Einklemmen eines Körperteils zwischen dem Behälteroberrand 16 und der Folgeplatte 26 besteht. Wird der Behälteroberrand 16 durch Öffnen der Tür 42 teilweise freigelegt, so wird die Bewegung der Folgeplatte 26 angehalten.at in Figures 1a to 1c In the first exemplary embodiment shown, the protective device 32 has a protective body in the form of a cuboid housing 34 . The housing 34 is open at the bottom, so that the container 12 can protrude from below, and rests on support feet 36, which in turn are attached to the installation surface 20. The housing 34 has a side wall 38 on each of three sides, while a door 42 hinged to one of the side walls 38 and having a transparent viewing window 44 made of Plexiglas, for example, is arranged on a front side 40 . The side walls 38 and the door 42 each extend from a lower edge 46 of the housing 34, which is located below the upper edge of the container 16, upwards beyond the upper edge of the container 16 and thus enclose the upper edge of the container 16. It is also possible that the side walls 38 and the door 42 do not extend down to the same height. The housing 34 is partially closed at the top by a housing cover 48 which, starting from the side walls 38 and the door 42, extends a little inwards and leaves an opening 50 free, from which the feed pump 30 and the support rods 24 protrude. In the exemplary embodiment shown, the diameter of the opening 50 is approximately the same size as the diameter of the follower plate 26. However, it is also possible to make the diameter of the opening 50 smaller than the diameter of the follower plate 26, so that it is a little way away from the housing cover 48 all around is covered. A switch 52 is arranged in the area of the door 42, which is actuated when the door 42 is opened and switches off the drive unit, so that a movement of the follower plate 26 is stopped. A displacement of the follower plate 26 and in particular an insertion of the follower plate 26 into the container 12 can therefore only take place when the door 42 is closed and the upper edge of the container 16 is surrounded by the housing 34 so that there is no risk of injury due to a part of the body being trapped between the upper edge of the container 16 and the follower plate 26 is made. When the top rim 16 of the container is partially exposed by opening the door 42, the movement of the follower plate 26 is stopped.

Beim zweiten Ausführungsbeispiel (Fig. 2a, b und Fig. 3a, b) ist lediglich die Schutzeinrichtung 132 anders ausgebildet als die Schutzeinrichtung 32 des ersten Ausführungsbeispiels. Sie weist eine Haube 134 auf, die eine auf einer Oberseite 136 der Folgeplatte 26 aufliegende Deckenwand 138 sowie eine sich von der Deckenwand 138 nach unten erstreckende, rings umlaufende Seitenwand 140 aufweist. Die Deckenwand 138 bedeckt die Folgeplatte 26 nicht vollständig, sondern lässt eine Öffnung 142 frei, durch die die Förderpumpe 30 und die Haltestangen 24 durchgreifen können. Die Seitenwand 140 erstreckt sich über eine der Oberseite 136 abgewandte Unterseite der Folgeplatte 26 hinaus weiter nach unten und weist eine solche lichte Weite auf, dass sie zudem den Behälter 12 am Behälteroberrand 16 rings umschließen kann. Die lichte Weite wird durch vier in gleichen Winkelabständen zueinander angeordnete, aus der Seitenwand 140 nach innen vorspringende Führungsrippen 144 vorgegeben, die zur Anlage an einer der Innenfläche der Behälterwand 18 abgewandten Außenfläche 146 bestimmt sind. Nach unten hin weisen die Führungsrippen 144 jeweils eine Auflaufschräge 148 auf, so dass sich die lichte Weite nach unten hin vergrößert, indem die in radialer Richtung gemessene Höhe der Führungsrippen 144 sich zu deren unterem Ende 150 kontinuierlich verringert.In the second embodiment ( Fig. 2a, b and 3a, b ) only the protective device 132 is designed differently than the protective device 32 of the first embodiment. It has a hood 134 which has a top wall 138 resting on a top side 136 of the follower plate 26 and a side wall 140 extending downwards from the top wall 138 and running around the circumference. The top wall 138 does not completely cover the follower plate 26 but leaves an opening 142 free through which the feed pump 30 and the support rods 24 can reach. The side wall 140 extends further down beyond an underside of the follower plate 26 facing away from the upper side 136 and has such a clear width that it can also enclose the container 12 at the upper edge 16 of the container. The clear width is defined by four guide ribs 144 which are arranged at equal angular distances from one another and protrude inwards from the side wall 140 and which are intended to rest on an outer surface 146 facing away from the inner surface of the container wall 18 . The guide ribs 144 each have a ramp 148 towards the bottom, so that the clear width increases towards the bottom in that the height of the guide ribs 144 measured in the radial direction decreases continuously towards their lower end 150 .

Solange die Haube 134 auf der Folgeplatte 26 aufliegt und ihre Seitenwand 140 die Folgeplatte 26 rings umschließt, ist es nahezu unmöglich, beim Einführen der Folgeplatte 26 in den Behälter 12 eine Hand zwischen der Folgeplatte 26 und dem Behälteroberrand 16 einzuklemmen. Um in diesen Bereich eingreifen zu können, muss die Haube 134 von der Folgeplatte 26 abgehoben werden. Um die Sicherheit der Vorrichtung 110 beim Einführen der Folgeplatte 26 in Behälter 12 zu gewährleisten, sind an der Deckenwand 138 zwei erste Schalter 152 zum Abschalten der Antriebseinheit angeordnet, die jeweils dann betätigt werden, wenn die Haube 134 im Bereich des jeweiligen ersten Schalters 152 von der Folgeplatte 26 abgehoben wird. Da beim Einführen der Folgeplatte 26 in den Behälter 12 der Behälteroberrand 16 von der Seitenwand 140 vollständig umschlossen wird, solange die Haube 134 auf der Folgeplatte 26 aufliegt, führt ein Freilegen des Behälteroberrands 16 durch Anheben der Haube 134 zwangsläufig zu einem Betätigen mindestens eines der ersten Schalter 152 und damit zu einem Anhalten der Bewegung der Folgeplatte 26. Ist die Folgeplatte 26 im Behälter 12 aufgenommen und folgt dem abnehmenden Materialpegel, so wird die auf den Behälteroberrand 16 aufliegende Haube 134 zwangläufig von der Folgeplatte 26 abgehoben. Um die Bewegung der Folgeplatte 26 nach unten fortsetzen zu können, sind zwei zweite Schalter 154 an der Seitenwand 140 angeordnet, die dann betätigt werden, wenn die Seitenwand 140 vom Behälteroberrand 16 abgehoben wird. Nur wenn sowohl mindestens einer der ersten Schalter 152 und mindestens einer der zweiten Schalter 154 gleichzeitig betätigt werden, wird die Antriebseinheit angehalten.As long as the hood 134 rests on the follower plate 26 and its side wall 140 surrounds the follower plate 26 all around, it is almost impossible to pinch a hand between the follower plate 26 and the upper edge 16 of the container when inserting the follower plate 26 into the container 12 . In order to be able to intervene in this area, the hood 134 must be lifted off the follower plate 26 . In order to ensure the safety of device 110 when inserting follower plate 26 into container 12, two first switches 152 for switching off the drive unit are arranged on top wall 138, which are actuated when hood 134 is in the area of the respective first switch 152 from the follower plate 26 is lifted. Since the upper edge 16 of the container is completely surrounded by the side wall 140 when the follower plate 26 is inserted into the container 12, as long as the hood 134 is resting on the follower plate 26, exposing the upper edge of the container 16 by lifting the hood 134 inevitably leads to at least one of the first being actuated Switch 152, stopping the movement of follower plate 26. Follower plate 26 is received in container 12 and follows the decreasing material level, the hood 134 resting on the upper edge 16 of the container is lifted off the follower plate 26 inevitably. In order to be able to continue the movement of the follower plate 26 downwards, two second switches 154 are arranged on the side wall 140 which are then actuated when the side wall 140 is lifted off the top rim 16 of the container. Only if both at least one of the first switches 152 and at least one of the second switches 154 are actuated simultaneously will the drive unit be stopped.

Zusammenfassend ist folgendes festzuhalten: Die Erfindung betrifft eine Vorrichtung 10, 110 zum Fördern von viskosem Material aus einem fassartigen, einen Behälterboden 14 und eine sich vom Behälterboden 14 zu einem Behälteroberrand 16 erstreckende, umlaufende Behälterwand 18 aufweisenden, am Behälteroberrand 16 offenen Behälter 12, mit einer einen an eine Förderpumpe 30 angeschlossenen Materialauslass 28 aufweisenden Folgeplatte 26 zum Verschließen des Behälters 12, wobei die Folgeplatte 26 unter dichtender Anlage an einer ihr zugewandten Innenfläche der Behälterwand 18 im Behälter 12 auf und ab beweglich ist, und mit einer Hebeeinrichtung 22 zum Anheben und Absenken der Folgeplatte 26, wobei die Hebeeinrichtung 22 eine Antriebseinheit aufweist.In summary, the following can be stated: The invention relates to a device 10, 110 for conveying viscous material from a barrel-like container 12, which has a container bottom 14 and a peripheral container wall 18 that extends from the container bottom 14 to a container top edge 16 and is open at the container top edge 16 a follower plate 26, which has a material outlet 28 connected to a feed pump 30, for closing the container 12, wherein the follower plate 26 can be moved up and down in the container 12 with sealing contact on an inner surface of the container wall 18 facing it, and with a lifting device 22 for lifting and Lowering the follower plate 26, the lifting device 22 having a drive unit.

Erfindungsgemäß ist eine Schutzeinrichtung 32, 132 mit einem Schutzkörper 34, 134 vorgesehen, der so bezüglich der Folgeplatte 26 und des Behälters 12 angeordnet ist, dass er beim Einführen der Folgeplatte 26 in den Behälter 12 einerseits die Folgeplatte 26 und andererseits den Behälter 12 im Bereich des Behälteroberrands 16 rings umschließt .Die Schutzeinrichtung 32, 132 weist zudem mindestens einen Schalter 52, 152, 154 zum Abschalten der Antriebseinheit bei einem mindestens teilweisen Freilegen des Behälteroberrands 16 durch den Schutzkörper 34, 134 während des Einführens der Folgeplatte 26 in den Behälter 12 auf.According to the invention, a protective device 32, 132 is provided with a protective body 34, 134, which is arranged with respect to the follower plate 26 and the container 12 such that when the follower plate 26 is inserted into the container 12, it protects the follower plate 26 on the one hand and the container 12 on the other in the region of the upper edge of the container 16. The protective device 32, 132 also has at least one switch 52, 152, 154 for switching off the drive unit if the upper edge of the container 16 is at least partially uncovered by the protective body 34, 134 during the insertion of the follower plate 26 into the container 12 .

Alternativ kann der Erfindungsgedanke in Bezug auf das zweite Ausführungsbeispiel so formuliert werden, dass erfindungsgemäß eine Schutzeinrichtung 132 mit einem als Haube 134 ausgebildeten Schutzkörper vorgesehen ist, wobei die Haube 134 eine auf einer Oberseite 136 der Folgeplatte 26 aufliegende Deckenwand 138 und eine sich von der Deckenwand 138 nach unten erstreckende, rings umlaufende und die Folgeplatte 26 rings umschließende Seitenwand 140 aufweist, die sich über eine Unterseite der Folgeplatte 26 hinaus weiter nach unten erstreckt und zum Umschließen des Behälteroberrands 16 ausgebildet ist, und dass mindestens ein erster Schalter 152 zum Abschalten der Antriebseinheit im Bereich zwischen der Deckenwand 138 und der Oberseite 136 der Folgeplatte 26 und vorzugsweise in oder an der Deckenwand 138 angeordnet ist und beim Abheben der Haube 134 von der Folgeplatte 26 betätigt wird.Alternatively, the inventive idea can be formulated in relation to the second embodiment so that according to the invention a protective device 132 is provided with a hood 134 designed as a protective body, wherein the Hood 134 has a top wall 138 resting on an upper side 136 of the follower plate 26 and a side wall 140 extending downwards from the top wall 138, circumferentially and surrounding the follower plate 26, which extends further downwards beyond an underside of the follower plate 26 and designed to enclose the upper edge of the container 16, and that at least one first switch 152 for switching off the drive unit is arranged in the area between the top wall 138 and the top side 136 of the follower plate 26 and preferably in or on the top wall 138 and when the hood 134 is lifted from the Follower plate 26 is actuated.

Claims (12)

  1. Apparatus for the conveying of viscous material from a drum-like container (12), which has a container bottom (14) and a circumferential container wall (18) extending from the container bottom (14) to an upper rim (16) of the container, which is open at the upper rim (16) of the container, the apparatus having, for closing of the container (12), a follower plate (26) having a material outlet (28) attached to a conveyor pump (30), wherein the follower plate (26) can be moved up and down in the container (12) while being in sealing contact against an inside face of the container wall (18) turned toward it, the apparatus having a lifting device (22) for raising and lowering of the follower plate (26), wherein the lifting device (22) has a drive unit, and the apparatus having a protective device (32, 132) having a protective member (34, 134), which is disposed in such a way with respect to the follower plate (26) and the container (12) that, upon introduction of the follower plate (26) into the container (12), it annularly surrounds on the one hand the follower plate (26) and on the other hand the container (12) in the region of the upper rim (16) of the container, characterized by at least one switch (52, 152, 154) for switching-off of the drive unit upon an at least partial exposure of the upper rim (16) of the container by the protective member (34, 134) during the introduction of the follower plate (26) into the container (12), wherein the protective member is either a downwardly open housing (34) disposed in fixed position, which on a front side (40) has a door (42), upon the opening of which the at least one switch (52) is actuated or wherein the protective member is a hood (134) resting on the follower plate (26) and having a top wall (138) resting on an upper side (136) of the follower plate (26) and an annularly circumferential side wall (140), which extends downward from the top wall (138) and annularly surrounds the follower plate (26), and which extends downward further beyond an underside of the follower plate (26) and is designed for surrounding of the upper rim (16) of the container, and in that at least one first switch (152) for switching-off of the drive unit is disposed in the region between the top wall (138) and the upper side (136) of the follower plate (26) and preferably in or on the top wall (138) and is actuated upon raising of the hood (134) from the follower plate (26).
  2. Apparatus according to claim 1, characterized in that the door (42) extends upward from a lower rim (46) at the front side (40) of the housing (34) at least to the upper rim (16) of the container.
  3. Apparatus according to claim 1 or 2, characterized in that the housing (34) rests on bracing feet (36).
  4. Apparatus according to one of the preceding claims, characterized in that the housing (34) has a housing cover (48) that preferably reaches beyond the follower plate (26) .
  5. Apparatus according to claim 4, characterized in that the housing cover (48) has an opening (50) through which the conveyor pump (30) and/or supply lines of the conveyor pump (30) and/or retaining means (24) are passed that connect the follower plate (26) to the lifting device (22).
  6. Apparatus according to claim 1, characterized in that at least one second switch (154) for switching-off of the drive unit is disposed in the region between the side wall (140) and the container wall (18) and preferably in or on the side wall (18) and is actuated during raising of the hood (134) from the container (12).
  7. Apparatus according to claim 6, characterized in that the at least one first switch (152) and the at least one second switch (154) are linked to one another by a logical AND and the drive unit is switched off when the or at least one of the first switches (152) and the or at least one of the second switches (154) is actuated.
  8. Apparatus according to claim 6 or 7, characterized in that several second switches (154) are provided, which are linked to one another by a logical OR.
  9. Apparatus according to one of claims 1, 6, 7 or 8, characterized in that several first switches (152) are provided, which are linked to one another by a logical OR.
  10. Apparatus according to one of claims 1, 6, 7, 8 or 9, characterized in that the side wall (140) is equipped with several guide ribs (144) protruding radially inward for contact against an outside face (146) of the container wall (18) .
  11. Apparatus according to claim 10, characterized in that the guide ribs (144) respectively have fitting chamfers (148), in the region of which their height measured in radial direction is reduced toward a lower end (150).
  12. Method, using an apparatus (10, 110) according to one of the preceding claims, for introduction of a follower plate (26) into a drum-like container (12), which has a container bottom (14) and a circumferential container wall (18) extending from the container bottom (14) to an upper rim (16) of the container, which is open at the upper rim (16) of the container, wherein the follower plate (26) is lowered into the container (12) by means of the lifting device (22), while the follower plate (26) and the upper rim (16) of the container are annularly surrounded by means of the protective member (34, 134), and wherein the lowering movement is stopped by switching-off of the drive unit when the upper rim (16) of the container is at least partly exposed.
EP17771386.4A 2016-12-21 2017-09-14 Method and device for conveying viscous material Active EP3558548B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016125207.7A DE102016125207A1 (en) 2016-12-21 2016-12-21 Device for conveying viscous material
PCT/EP2017/073123 WO2018114068A1 (en) 2016-12-21 2017-09-14 Device for conveying viscous material

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EP3558548A1 EP3558548A1 (en) 2019-10-30
EP3558548B1 true EP3558548B1 (en) 2022-03-23

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US (1) US10934154B2 (en)
EP (1) EP3558548B1 (en)
KR (1) KR102376106B1 (en)
CN (1) CN110035836B (en)
DE (1) DE102016125207A1 (en)
WO (1) WO2018114068A1 (en)

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Also Published As

Publication number Publication date
US20190367352A1 (en) 2019-12-05
EP3558548A1 (en) 2019-10-30
KR102376106B1 (en) 2022-03-17
US10934154B2 (en) 2021-03-02
CN110035836B (en) 2021-12-17
KR20190097046A (en) 2019-08-20
WO2018114068A1 (en) 2018-06-28
DE102016125207A1 (en) 2018-06-21
CN110035836A (en) 2019-07-19

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