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EP3178560B1 - Device for grinding metal chips - Google Patents

Device for grinding metal chips Download PDF

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Publication number
EP3178560B1
EP3178560B1 EP15003487.4A EP15003487A EP3178560B1 EP 3178560 B1 EP3178560 B1 EP 3178560B1 EP 15003487 A EP15003487 A EP 15003487A EP 3178560 B1 EP3178560 B1 EP 3178560B1
Authority
EP
European Patent Office
Prior art keywords
endless conveyor
shaft
knife shaft
cutting
rotatably mounted
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
EP15003487.4A
Other languages
German (de)
French (fr)
Other versions
EP3178560A1 (en
Inventor
Karl-Heinz Kilian
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Individual
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Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PL15003487T priority Critical patent/PL3178560T3/en
Priority to EP15003487.4A priority patent/EP3178560B1/en
Priority to TR2018/08060T priority patent/TR201808060T4/en
Priority to ES15003487.4T priority patent/ES2671022T3/en
Publication of EP3178560A1 publication Critical patent/EP3178560A1/en
Application granted granted Critical
Publication of EP3178560B1 publication Critical patent/EP3178560B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/145—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2225—Feed means
    • B02C18/2241—Feed means of conveyor belt type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/24—Drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C2018/188—Stationary counter-knives; Mountings thereof

Definitions

  • the invention relates to a device for crushing metal chips.
  • metal shavings such as steel chips.
  • These metal chips are transported away by means of an endless conveyor of the lathe and conveyed into a container.
  • the volume of the metal chips can be significantly reduced, so that these containers must be emptied less frequently.
  • metal shavings are a recyclable raw material that is collected in containers for recycling. Regularly, the existing container volume has long been reached, although by weight, the container could be filled even fuller. Therefore, it is advantageous to obtain chips as small as possible in order to reduce the volume requirement of the chips and to be able to accommodate as large a mass of chips in a container.
  • the chips are regularly very sharp, so that the chips can not be compressed with bare hands to create more space in the container.
  • the risk of injury to employees would be too great.
  • devices for crushing known metal shavings having one or more rotatable shafts, which are each equipped with cutting blades.
  • a corresponding device is for example from the DE 44 06 675 A1 known.
  • On the rotatable blade shaft several disc-shaped cutting blades are pushed one behind the other and fastened in this threading sequence on the blade shaft.
  • the individual cutting teeth of the cutting blades can become blunt or break during operation, which makes it necessary to replace the cutting blades.
  • the knife shaft with all cutting blades must be regularly removed from the housing, so that the outer cutting blades can be removed from the blade shaft up to the cutting blade to be replaced.
  • the removed, functioning cutting blades must be re-attached to the blade shaft and this must then be re-installed in the housing.
  • Such a repair process is associated with a high work and time and thus economically unfavorable.
  • a crushing of the chips during the repair process is not possible, which may also result in a production stop of the lathes result.
  • devices for crushing metal shavings are known in which the rotatable cutter shafts are each equipped with a plurality of cutting blade modules that can be individually placed on the blade shafts and so releasably secured to the blade shaft, as seen in the direction of rotation of the blade shaft respectively at least two cutting modules are present.
  • Corresponding devices are for example already in the DE 94 18 544 U1 or the DE 20 2009 017 062 U1 known.
  • the present invention seeks to provide an improved device for crushing metal chips, which allows the lowest possible maintenance operation.
  • the device according to the invention for crushing metal shavings has at least one blade shaft mounted rotatably. At least two Schneidmoldule can be releasably attached to each blade shaft, which cooperate with at least one fixed male connector and thereby cause a crushing of the chips.
  • the cutting modules can each be placed individually on the blade shaft and so releasably secured to the blade shaft that seen in the direction of rotation of the blade shaft in each case at least two cutting modules are present.
  • the device can be positioned so that the metal chips transported by an endless conveyor can be stripped off the endless conveyor by the cutting modules fastened to the blade shaft.
  • the knife shaft and the endless conveyor are driven according to the invention by the same motor drive.
  • the endless conveyor can be produced and sold together with the knife shaft. However, it would also be possible to retrofit an already existing endless conveyor used in a factory.
  • both chip shredders and endless conveyors can be reversed simultaneously and together, should this be necessary to remove or prevent blockage.
  • Such a short-term reversion of the knife shaft may already be sufficient to prevent clogging, if during reversion no further metal chips fall into the gap between the knife shaft and fixed male connector.
  • the endless conveyor may have a drive shaft which is connected to the at least one rotatably mounted blade shaft. This can be done in a structurally particularly simple manner via a toothed belt or a chain.
  • the at least one blade shaft can be rotatably mounted in a bearing block.
  • the endless conveyor can be attached via at least one spacer.
  • Endless conveyor and knife shaft are thus present at a defined distance from each other and arranged in close proximity to each other.
  • This spatial proximity of the actual shredding unit to the endless conveyor means that those chips that do not fall off the endless conveyor independently can be stripped off the endless conveyor by the cutting modules attached to the blade shaft.
  • the cutting modules attached to the blade shaft By means of a corresponding grinding of the cutting teeth of the cutting modules, these can hook onto the chips and transport the chips away from the endless conveyor, towards the stationary knife edges, where the chips can be comminuted.
  • the at least one rotatably mounted cutter shaft and the end portion of the endless conveyor adjacent to the cutter shaft can be covered by a common hood.
  • the modular way of attaching the individual cutting modules makes it possible to individually detach and replace a defective cutting module from the blade shaft, without affecting other adjacent cutting modules. Also, it is not necessary to remove the blade shaft from the housing. The replacement of the individual cutting modules is thus uncomplicated and quickly possible, so that there is only a short service life of the device during maintenance.
  • the attachment of the cutting modules on the blade shaft can be done via at least one screw.
  • the individual cutting modules can each be screwed with at least two screws on the blade shaft.
  • the rotatably mounted blade shaft in its lateral surface have a plurality of pockets, in each of which a cutting module can be positioned.
  • a simple positioning of the individual cutting modules on the blade shaft can be made possible, which may be desirable in particular for the initial assembly of the individual cutting modules.
  • the cutting modules can be inserted exactly in the pockets and have a well-defined position with respect to adjacent cutting modules, so that an optimum cutting result can be achieved.
  • the assembly and replacement of the cutting modules can still be done quickly, so that only a small assembly time is required both during the initial assembly and when replacing one or more cutting modules.
  • the pockets can preferably be milled into the lateral surface.
  • the rotatably mounted blade shaft may be cylindrical.
  • the cross section of the rotatably mounted knife shaft would be in this case-apart from the pockets present in the lateral surface - circular.
  • the fixed male connector can be modular.
  • the male connector may have a plurality of blade units, which may be attached to a common blade holder, for example.
  • the individual modules of the fixed male connector can be easily replaced if one of the blade units is defective.
  • the attachment of the individual blade units can be done for example via one or more screws.
  • the inventive apparatus 10 for crushing metal chips 12 is shown schematically in FIG Fig. 1 and 2 shown.
  • the device 10 has a knife shaft 20 which is rotatably mounted in a bearing block 22.
  • the knife shaft 20 can be rotatably driven about the axis of rotation 24 by means of a motor drive, not shown.
  • the direction of rotation 26 runs in the present example in the clockwise direction.
  • the blade shaft 20 is provided with a drive shaft 28 which can be driven by the motor drive.
  • the knife shaft 20 has a circular cross section in the present example case.
  • a plurality of pockets 32 are present in the present example case.
  • a cutting module 34 may be inserted and secured.
  • the cutting modules 34 each have at least one bore into which a screw can engage in order to fasten the cutting modules 34 to the blade shaft 20 by means of a screw connection.
  • Each cutting module 34 is equipped with a cutting tooth.
  • the cutting modules 34 may be removed one at a time from the knife shaft 20. After loosening the fastening screw, the cutting module 34 to be replaced can be removed from the knife shaft 20.
  • the knife shaft 20 itself does not have to be removed from the bearing block 22. Also, no further cutting modules 34, which are not to be replaced, must be removed. The replacement of defective cutting modules 34 thus designed quickly and easily and is therefore economically advantageous.
  • the cutting teeth of the cutting modules 34 cooperate with a stationary male connector 40 to comminute the metal chips 12.
  • the fixed knife bar 40 is fixed by means of a knife holder 42 to the base 44 of the device 10. At this base 44 and the bearing block 22 is fixed to the blade shaft 20.
  • the male connector 40 has a modular construction and has a plurality of blade units 46.
  • the number of blade units 46 may correspond to the number of cutting modules 34 seen in the longitudinal direction of the blade shaft 20.
  • the individual blade units 46 are attached to the blade holder 42 via one or more screws. Due to the modular design of the fixed male connector 40, the individual blade units 46 can also be easily replaced in the event of a defect.
  • the apparatus 10 further has an endless conveyor 50 for metal chips 12, the end portion 52 of which is placed so close to the rotatably mounted cutter shaft 20 that the individual cutting modules 34 can serve as wipers for such metal chips 12 that do not fall off the endless conveyor 50 by themselves , In this way it can be prevented that some chips 12 are transported by the endless conveyor 50 back toward a lathe, not shown here, which can lead to blockages of the lathe.
  • the endless conveyor 50 is arranged in a housing 60 which is fastened by means of a plurality of spacers 62 to the substructure 44 of the bearing block 22 of the knife shaft 20. In this way it is ensured that the preset distance 54 between conveyor belt 56 and cutting teeth is maintained and not accidentally changed.
  • the drive shaft 64 of the endless conveyor 50 is rotatably mounted in the housing 60.
  • the drive shaft 64 of the endless conveyor 50 and the drive shaft 28 of the knife shaft 20 are connected to each other in the present example via a toothed belt 70.
  • both drive shafts 64, 28 are each provided with a gear wheel 72, 74.
  • the toothed belt 70 connects the two gears 72, 74 and thus also the two drive shafts 28, 64 with each other.
  • the endless conveyor 50 is thus driven by the same motor drive as the blade shaft 20.
  • only one common motor drive required, which significantly reduces the manufacturing and maintenance costs of the device 10.
  • the common motor drive it is possible by the common motor drive to take both drive shafts 28, 64 together in operation and also to stop together. In this way, it can be ensured that in the event of an imminent blockage in the area of the stationary knife bar 40 not only the rotation of the knife shaft 20 is stopped, but at the same time the conveyor belt 56 of the endless conveyor is stopped.
  • a simultaneous reversion of knife shaft 28 and endless conveyor 50 is possible, so the simultaneous change of the direction of rotation. Such a reversion may be required to prevent or redissolve incipient blockage in the area of the male connector 40.
  • the two gears 72, 74 may also be connected to each other by means of a chain. It would also be possible to let the gears 72, 74 mesh directly with each other.
  • the device 10 in the present exemplary case is arranged in a housing 80.
  • the housing 80 is closed by a hood 82 in the region of the knife shaft 20 and the end region 52 of the endless conveyor 50.
  • the hood 82 may preferably be transparent be formed to observe the crushing process can.
  • the hood 82 can not be opened, so that it is not possible to reach with his hands in the area of the fixed blade bar 40, which could lead to serious injuries. Only after stopping the knife shaft 20, the hood 82 can be opened, so that the crushing area is freely accessible. With the knife shaft 20 stopped, it is thus possible to carefully attempt to dissolve an impending blockage. Even with a reversion of the blade shaft 20, an opening of the hood 82 may be possible. Conversely, a commissioning of the device 10 requires that the hood 82 is closed. When the hood 82 is open, however, no rotation of the blade shaft 20 in the clockwise direction is possible.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Erfindung betrifft eine Vorrichtung zum Zerkleinern von Metallspänen. Beim Betreiben von Drehmaschinen fallen regelmäßig große Mengen von Metallspänen an, beispielsweise von Stahlspänen. Diese Metallspäne werden mittels eines Endlosförderers von der Drehmaschine abtransportiert und in einen Container gefördert. Mittels einer Vorrichtung zum Zerkleinern von Metallspänen kann das Volumen der Metallspäne deutlich reduziert werden, so dass diese Container weniger häufig geleert werden müssen.The invention relates to a device for crushing metal chips. When operating lathes regularly fall on large amounts of metal shavings, such as steel chips. These metal chips are transported away by means of an endless conveyor of the lathe and conveyed into a container. By means of a device for crushing metal chips, the volume of the metal chips can be significantly reduced, so that these containers must be emptied less frequently.

STAND DER TECHNIKSTATE OF THE ART

Insbesondere in der metallverarbeitenden Industrie fallen oft sehr lange, spiralförmige und scharfkantige Metallspäne an, die einen großen Platzbedarf aufweisen. Verheddern sich diese Späne miteinander, führt dies zur Bildung von Späneknäueln, die einen noch größeren Platzbedarf aufweisen können. Bei den Metallspänen handelt es sich um einen wiederverwertbaren Rohstoff, der zum Recycling in Containern gesammelt wird. Regelmäßig ist das vorhandene Container-Volumen längst erreicht, obwohl gewichtsmäßig der Container noch voller befüllt werden könnte. Daher ist es vorteilhaft, möglichst kleine Späne zu erhalten, um den Volumenbedarf der Späne zu reduzieren und so eine möglichst große Masse an Spänen in einem Container unterbringen zu können.Especially in the metalworking industry are often very long, spiral and sharp-edged metal chips, which have a large footprint. If these shavings become entangled with one another, this leads to the formation of chips, which can have even greater space requirements. Metal shavings are a recyclable raw material that is collected in containers for recycling. Regularly, the existing container volume has long been reached, although by weight, the container could be filled even fuller. Therefore, it is advantageous to obtain chips as small as possible in order to reduce the volume requirement of the chips and to be able to accommodate as large a mass of chips in a container.

Die Späne sind regelmäßig sehr scharfkantig, so dass die Späne nicht mit bloßen Händen zusammengedrückt werden können, um mehr Platz im Container zu schaffen. Das Verletzungsrisiko für die Mitarbeiter wäre dabei zu groß. Zu diesem Zweck sind Vorrichtungen zum Zerkleinern von Metallspänen bekannt, die eine oder mehrere rotierbare Wellen besitzen, die jeweils mit Schneidmessern bestückt sind. Eine entsprechende Vorrichtung ist beispielsweise aus der DE 44 06 675 A1 bekannt. Auf die rotierbare Messerwelle werden mehrere scheibenförmige Schneidmesser hintereinander aufgeschoben und in dieser aufgefädelten Reihenfolge an der Messerwelle befestigt.The chips are regularly very sharp, so that the chips can not be compressed with bare hands to create more space in the container. The risk of injury to employees would be too great. For this purpose are devices for crushing known metal shavings having one or more rotatable shafts, which are each equipped with cutting blades. A corresponding device is for example from the DE 44 06 675 A1 known. On the rotatable blade shaft several disc-shaped cutting blades are pushed one behind the other and fastened in this threading sequence on the blade shaft.

Die einzelnen Schneidzähne der Schneidmesser können im Betrieb stumpf werden oder abbrechen, was ein Auswechseln der Schneidmesser notwendig macht. In diesem Fall muss regelmäßig die Messerwelle mit allen Schneidmessern aus dem Gehäuse ausgebaut werden, so dass die äußeren Schneidmesser bis zu dem auszuwechselnden Schneidmesser von der Messerwelle entfernt werden können. Nach dem Auswechseln des defekten Schneidmessers durch ein neues Schneidmesser müssen die entfernten, funktionsfähigen Schneidmesser wieder an der Messerwelle befestigt werden und diese muss anschließend wieder in dem Gehäuse eingebaut werden. Ein solcher Reparaturvorgang ist mit einem hohen Arbeits- und Zeitaufwand verbunden und damit wirtschaftlich ungünstig. Darüber hinaus ist ein Zerkleinern der Späne während des Reparaturvorgangs nicht möglich, was gegebenenfalls auch einen Produktionsstopp der Drehmaschinen zur Folge haben kann.The individual cutting teeth of the cutting blades can become blunt or break during operation, which makes it necessary to replace the cutting blades. In this case, the knife shaft with all cutting blades must be regularly removed from the housing, so that the outer cutting blades can be removed from the blade shaft up to the cutting blade to be replaced. After replacing the defective cutting blade with a new cutting blade, the removed, functioning cutting blades must be re-attached to the blade shaft and this must then be re-installed in the housing. Such a repair process is associated with a high work and time and thus economically unfavorable. In addition, a crushing of the chips during the repair process is not possible, which may also result in a production stop of the lathes result.

Aus diesem Grund sind Vorrichtungen zum Zerkleinern von Metallspänen bekannt, bei denen die rotierbaren Messerwellen jeweils mit mehreren Schneidmesser-Modulen bestückt sind, die einzeln auf die Messerwellen aufgesetzt werden können und so lösbar an der Messerwelle befestigt werden, dass in Rotationsrichtung der Messerwelle gesehen jeweils zumindest zwei Schneidmodule vorhanden sind. Entsprechende Vorrichtungen sind beispielsweise bereits aus der DE 94 18 544 U1 oder der DE 20 2009 017 062 U1 bekannt.For this reason, devices for crushing metal shavings are known in which the rotatable cutter shafts are each equipped with a plurality of cutting blade modules that can be individually placed on the blade shafts and so releasably secured to the blade shaft, as seen in the direction of rotation of the blade shaft respectively at least two cutting modules are present. Corresponding devices are for example already in the DE 94 18 544 U1 or the DE 20 2009 017 062 U1 known.

Bei diesen Vorrichtungen handelt es sich um separate Geräte, die oftmals nicht direkt neben der Drehmaschine vorhanden sind. Sofern kein Endlosförderer von der Drehmaschine zu der Vorrichtung zum Zerkleinern von Metallspänen vorhanden ist, müssen die Späne manuell zu der Vorrichtung transportiert und dort häufig ebenfalls manuell der Vorrichtung zugeführt werden. Auch hierbei besteht wieder die Möglichkeit von Verletzungen an den scharfkantigen Spänen.These devices are separate devices that are often not directly adjacent to the lathe. Unless an endless conveyor from the lathe to the crushing device is present of metal shavings, the chips must be manually transported to the device and there often also manually fed to the device. Again, there is the possibility of injury to the sharp-edged chips.

Insbesondere bei sehr langen Spänen kann es darüber hinaus bereits auf dem Endlosförderer zu einem Verheddern der Metallspäne kommen. Dies kann dazu führen, dass die Späne nicht mehr vom Endlosförderer in die Vorrichtung zum Zerkleinern von Metallspänen fallen, sondern am Endlosförderer hängen bleiben und von diesem wieder zurück zur Drehmaschine transportiert werden. Dadurch kann es zu einem Verstopfen des Endlosförderers und/oder der Drehmaschine kommen, was einen Produktionsstopp nach sich führen kann. In einem solchen Fall muss der Endlosförderer und/oder die Drehmaschine geöffnet werden und die eingezogenen Späne müssen entfernt werden, bevor ein Betrieb von Drehmaschine und Endlosförderer wieder möglich ist. Derartige Instandhaltungsarbeiten sind sehr zeitaufwändig und damit wirtschaftlich nachteilig. Auch muss das Entfernen der Metallspäne in der Regel manuell vorgenommen werden, was eine erhöhte Verletzungsgefahr an den scharfkantigen Metallspänen mit sich bringt.In particular, with very long chips, it can also come on the endless conveyor to tangling of the metal chips. This can cause the chips no longer fall from the endless conveyor in the device for crushing metal chips, but hang on the endless conveyor and are transported by this back to the lathe. This can lead to clogging of the endless conveyor and / or the lathe, which can lead to a production stop. In such a case, the endless conveyor and / or the lathe must be opened and the drawn chips must be removed before operation of the lathe and endless conveyor is again possible. Such maintenance work is very time consuming and therefore economically disadvantageous. The removal of metal shavings usually has to be done manually, which entails an increased risk of injury to the sharp-edged metal shavings.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Ausgehend von diesem vorbekannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine verbesserte Vorrichtung zum Zerkleinern von Metallspänen anzugeben, die einen möglichst wartungsarmen Betrieb ermöglicht.Based on this prior art, the present invention seeks to provide an improved device for crushing metal chips, which allows the lowest possible maintenance operation.

Die erfindungsgemäße Vorrichtung zum Zerkleinern von Metallspänen ist durch die Merkmale des Hauptanspruchs 1 gegeben. Sinnvolle Weiterbildungen der Erfindung sind Gegenstand von sich an den Hauptanspruch anschließenden weiteren Ansprüchen.The inventive device for crushing metal chips is given by the features of the main claim 1. Useful developments of the invention are the subject of further claims appending to the main claim.

Die erfindungsgemäße Vorrichtung zum Zerkleinern von Metallspänen besitzt zumindest eine rotierbar gelagerte Messerwelle. An jeder Messerwelle können zumindest zwei Schneidmoldule lösbar befestigt sein, die mit zumindest einer feststehenden Messerleiste zusammenwirken und dadurch ein Zerkleinern der Späne bewirken. Die Schneidmodule können dabei jeweils einzeln auf die Messerwelle aufgesetzt und so lösbar an der Messerwelle befestigt werden, dass in Rotationsrichtung der Messerwelle gesehen jeweils zumindest zwei Schneidmodule vorhanden sind. Darüber hinaus kann die Vorrichtung so positioniert werden, dass die von einem Endlosförderer transportierten Metallspäne durch die an der Messerwelle befestigten Schneidmodule von dem Endlosförderer abstreifbar sind. Die Messerwelle und der Endlosförderer werden erfindungsgemäß durch denselben motorischen Antrieb angetrieben.The device according to the invention for crushing metal shavings has at least one blade shaft mounted rotatably. At least two Schneidmoldule can be releasably attached to each blade shaft, which cooperate with at least one fixed male connector and thereby cause a crushing of the chips. The cutting modules can each be placed individually on the blade shaft and so releasably secured to the blade shaft that seen in the direction of rotation of the blade shaft in each case at least two cutting modules are present. In addition, the device can be positioned so that the metal chips transported by an endless conveyor can be stripped off the endless conveyor by the cutting modules fastened to the blade shaft. The knife shaft and the endless conveyor are driven according to the invention by the same motor drive.

Der Endlosförderer kann gemeinsam mit der Messerwelle produziert und verkauft werden. Es wäre jedoch auch möglich, einen bereits existierenden und in einem Betrieb eingesetzten Endlosförderer entsprechend nachzurüsten.The endless conveyor can be produced and sold together with the knife shaft. However, it would also be possible to retrofit an already existing endless conveyor used in a factory.

Die Verwendung eines gemeinsamen Antriebs für Messerwelle und Endlosförderer führt dazu, dass beide Bauteile gemeinsam in Betrieb genommen und damit auch wieder gestoppt werden können. Sollte es daher zu einem Verstopfen des Spänehäckslers kommen, so dass die Rotation der Messerwelle gestoppt werden muss, wird gleichzeitig auch die Bewegung des Endlosförderers angehalten, so dass keine weiteren Metallspäne mehr in den Spänehäcksler hineinfallen können, was die Verstopfung des Spänehäckslers verschlimmern würde. Bislang musste der Endlosförderer separat gestoppt werden, was mit einer gewissen Zeitverzögerung verbunden war, da die Steuerungen für die beiden Bauteile nicht unmittelbar nebeneinander angeordnet waren. Es konnte auch vorkommen, dass der Endlosförderer eine gewisse Zeit lang gar nicht gestoppt wurde, da der zuständige Mitarbeiter zunächst hoffte, die Verstopfung des Spänehäckslers so schnell beheben zu können, dass er sich den Weg zur Steuerung des Endlosförderers sparen konnte. Dies führte dann häufig dazu, dass die Verstopfung deutlich schlimmer wurde und die Beseitigung derselben viel länger dauerte, als es eigentlich nötig gewesen wäre. Auch können mit der erfindungsgemäßen Ausgestaltung sowohl Spänehäcksler als auch Endlosförderer gleichzeitig und gemeinsam reversiert werden, sollte dies einmal nötig sein, um eine Verstopfung aufzuheben oder zu verhindern. Eine solche kurzzeitige Reversion der Messerwelle kann bereits ausreichend sein, um eine Verstopfung zu verhindern, sofern während der Reversion keine weiteren Metallspäne in den Spalt zwischen Messerwelle und feststehender Messerleiste fallen. Durch die Verwendung eines gemeinsamen motorischen Antriebs kann darüber hinaus ein motorischer Antrieb mit entsprechender Steuerung eingespart werden, was wirtschaftlich vorteilhaft ist. Auch muss nur ein Antrieb gewartet werden, was den Wartungsaufwand reduziert.The use of a common drive for knife shaft and endless conveyor means that both components can be put into operation together and therefore also be stopped again. Should it therefore come to a clogging of the chip shredder, so that the rotation of the knife shaft must be stopped, the movement of the endless conveyor is stopped at the same time, so that no more metal chips can fall into the chip shredder, which would worsen the clogging of the chip shredder. So far, the endless conveyor had to be stopped separately, which was associated with a certain time delay, since the controls for the two components were not arranged directly next to each other. It could also happen that the endless conveyor was not stopped for a certain period of time, as the responsible employee initially hoped to be able to fix the blockage of the chip shredder so quickly that he found his way to the control of the endless conveyor could save. This often led to the constipation becoming significantly worse and the elimination taking much longer than it would have been necessary. Also, with the embodiment according to the invention, both chip shredders and endless conveyors can be reversed simultaneously and together, should this be necessary to remove or prevent blockage. Such a short-term reversion of the knife shaft may already be sufficient to prevent clogging, if during reversion no further metal chips fall into the gap between the knife shaft and fixed male connector. By using a common motor drive a motor drive can be saved with appropriate control beyond, which is economically advantageous. Also, only one drive has to be serviced, which reduces the maintenance effort.

Vorzugsweise kann der Endlosförderer eine Antriebswelle aufweisen, die mit der zumindest einen rotierbar gelagerten Messerwelle verbunden ist. Dies kann in konstruktiv besonders einfacher Weise über einen Zahnriemen oder eine Kette erfolgen.Preferably, the endless conveyor may have a drive shaft which is connected to the at least one rotatably mounted blade shaft. This can be done in a structurally particularly simple manner via a toothed belt or a chain.

In einer vorteilhaften Ausführungsform kann die zumindest eine Messerwelle in einem Lagerblock rotierbar gelagert sein. An diesem Lagerblock kann auch der Endlosförderer über zumindest einen Abstandshalter befestigt sein. Endlosförderer und Messerwelle sind somit in einem definierten Abstand zueinander vorhanden und in unmittelbarer Nähe zueinander angeordnet. Diese räumliche Nähe von der eigentlichen Zerkleinerungseinheit zu dem Endlosförderer führt dazu, dass diejenigen Späne, die nicht selbständig vom Endlosförderer abfallen, durch die an der Messerwelle befestigten Schneidmodule von dem Endlosförderer abgestreift werden können. Durch einen entsprechenden Schliff der Schneidzähne der Schneidmodule können sich diese an den Spänen festhaken und die Späne vom Endlosförderer weg, hin zu den feststehenden Messerleisten transportieren, wo die Späne zerkleinert werden können.In an advantageous embodiment, the at least one blade shaft can be rotatably mounted in a bearing block. At this bearing block and the endless conveyor can be attached via at least one spacer. Endless conveyor and knife shaft are thus present at a defined distance from each other and arranged in close proximity to each other. This spatial proximity of the actual shredding unit to the endless conveyor means that those chips that do not fall off the endless conveyor independently can be stripped off the endless conveyor by the cutting modules attached to the blade shaft. By means of a corresponding grinding of the cutting teeth of the cutting modules, these can hook onto the chips and transport the chips away from the endless conveyor, towards the stationary knife edges, where the chips can be comminuted.

Um das Verletzungsrisiko für die Mitarbeiter weiter zu reduzieren, kann die zumindest eine rotierbar gelagerte Messerwelle und der der Messerwelle benachbarte Endbereich des Endlosförderers durch eine gemeinsame Haube abgedeckt werden.In order to further reduce the risk of injury to the employees, the at least one rotatably mounted cutter shaft and the end portion of the endless conveyor adjacent to the cutter shaft can be covered by a common hood.

Die modulare Art der Befestigung der einzelnen Schneidmodule ermöglicht es, ein defektes Schneidmodul einzeln von der Messerwelle zu lösen und auszutauschen, ohne dass andere, benachbarte Schneidmodule mit betroffen wären. Auch ist es nicht notwendig, die Messerwelle aus dem Gehäuse auszubauen. Das Auswechseln der einzelnen Schneidmodule ist somit unkompliziert und rasch möglich, so dass es nur zu einer kurzen Standzeit der Vorrichtung während einer Wartung kommt.The modular way of attaching the individual cutting modules makes it possible to individually detach and replace a defective cutting module from the blade shaft, without affecting other adjacent cutting modules. Also, it is not necessary to remove the blade shaft from the housing. The replacement of the individual cutting modules is thus uncomplicated and quickly possible, so that there is only a short service life of the device during maintenance.

Die Befestigung der Schneidmodule an der Messerwelle kann über zumindest eine Schraubverbindung erfolgen. Vorzugsweise können die einzelnen Schneidmodule jeweils mit zumindest zwei Schrauben an der Messerwelle festgeschraubt werden. In einer bevorzugten Ausführungsform kann die rotierbar gelagerte Messerwelle in ihrer Mantelfläche mehrere Taschen aufweisen, in denen jeweils ein Schneidmodul positioniert werden kann. Dadurch kann neben der Befestigung auch ein einfaches Positionieren der einzelnen Schneidmodule an der Messerwelle ermöglicht werden, was insbesondere für die Erstmontage der einzelnen Schneidmodule wünschenswert sein kann. Die Schneidmodule können exakt in die Taschen eingesetzt werden und haben eine genau definierte Position in Bezug auf benachbarte Schneidmodule inne, so dass ein optimales Schneidergebnis erzielt werden kann. Die Montage und das Auswechseln der Schneidmodule kann nach wie vor rasch erfolgen, so dass sowohl bei der Erstmontage als auch beim Auswechseln eines oder mehrerer Schneidmodule nur eine geringe Montagezeit benötigt wird. Die Taschen können vorzugsweise in die Mantelfläche eingefräst sein.The attachment of the cutting modules on the blade shaft can be done via at least one screw. Preferably, the individual cutting modules can each be screwed with at least two screws on the blade shaft. In a preferred embodiment, the rotatably mounted blade shaft in its lateral surface have a plurality of pockets, in each of which a cutting module can be positioned. As a result, in addition to the attachment, a simple positioning of the individual cutting modules on the blade shaft can be made possible, which may be desirable in particular for the initial assembly of the individual cutting modules. The cutting modules can be inserted exactly in the pockets and have a well-defined position with respect to adjacent cutting modules, so that an optimum cutting result can be achieved. The assembly and replacement of the cutting modules can still be done quickly, so that only a small assembly time is required both during the initial assembly and when replacing one or more cutting modules. The pockets can preferably be milled into the lateral surface.

Vorzugsweise kann die rotierbar gelagerte Messerwelle zylinderförmig ausgebildet sein. Der Querschnitt der rotierbar gelagerten Messerwelle wäre in diesem Fall-abgesehen von den in der Mantelfläche vorhandenen Taschen - kreisförmig.Preferably, the rotatably mounted blade shaft may be cylindrical. The cross section of the rotatably mounted knife shaft would be in this case-apart from the pockets present in the lateral surface - circular.

Auch die feststehende Messerleiste kann modular ausgebildet sein. Dazu kann die Messerleiste mehrere Messereinheiten besitzen, die beispielsweise an einem gemeinsamen Messerhalter befestigt werden können. Dadurch können auch die einzelnen Module der feststehenden Messerleiste einfach ausgetauscht werden, sofern eine der Messereinheiten defekt ist. Die Befestigung der einzelnen Messereinheiten kann beispielsweise über eine oder mehrere Schrauben erfolgen.The fixed male connector can be modular. For this purpose, the male connector may have a plurality of blade units, which may be attached to a common blade holder, for example. As a result, the individual modules of the fixed male connector can be easily replaced if one of the blade units is defective. The attachment of the individual blade units can be done for example via one or more screws.

Weitere Vorteile und Merkmale der Erfindung sind den in den Ansprüchen ferner angegebenen Merkmalen sowie dem nachstehenden Ausführungsbeispiel zu entnehmen.Further advantages and features of the invention are given in the claims further specified features and the following embodiment.

KURZE BESCHREIBUNG DER ZEICHNUNGBRIEF DESCRIPTION OF THE DRAWING

Die Erfindung wird im Folgenden anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben und erläutert. Es zeigen:

Fig. 1
eine schematische Seitenansicht der erfindungsgemäßen Vorrichtung, bei der noch keine Schneidmodule in die Messerwelle eingesetzt wurden und
Fig. 2
einen Querschnitt durch die erfindungsgemäße Vorrichtung mit eingesetzten Schneidmodulen.
The invention will be described and explained in more detail below with reference to the embodiment shown in the drawing. Show it:
Fig. 1
a schematic side view of the device according to the invention, in which no cutting modules have been used in the knife shaft and
Fig. 2
a cross section through the device according to the invention with inserted cutting modules.

WEGE ZUM AUSFÜHREN DER ERFINDUNGWAYS FOR CARRYING OUT THE INVENTION

Die erfindungsgemäße Vorrichtung 10 zum Zerkleinern von Metallspänen 12 ist schematisch in Fig. 1 und 2 dargestellt. Die Vorrichtung 10 weist eine Messerwelle 20 auf, die in einem Lagerblock 22 rotierbar gelagert ist. Die Messerwelle 20 kann mittels eines nicht dargestellten motorischen Antriebs um die Drehachse 24 rotierbar angetrieben werden. Die Rotationsrichtung 26 verläuft im vorliegenden Beispielsfall mit dem Uhrzeigersinn. Um die Messerwelle 20 antreiben zu können, ist die Messerwelle 20 mit einer Antriebswelle 28 ausgestattet, die durch den motorischen Antrieb angetrieben werden kann.The inventive apparatus 10 for crushing metal chips 12 is shown schematically in FIG Fig. 1 and 2 shown. The device 10 has a knife shaft 20 which is rotatably mounted in a bearing block 22. The knife shaft 20 can be rotatably driven about the axis of rotation 24 by means of a motor drive, not shown. The direction of rotation 26 runs in the present example in the clockwise direction. In order to drive the blade shaft 20, the blade shaft 20 is provided with a drive shaft 28 which can be driven by the motor drive.

Die Messerwelle 20 besitzt im vorliegenden Beispielsfall einen kreisförmigen Querschnitt. In der Mantelfläche 30 sind im vorliegenden Beispielsfall mehrere Taschen 32 vorhanden. In jeder der Taschen 32 kann ein Schneidmodul 34 eingesetzt und befestigt werden. Die Schneidmodule 34 weisen dazu jeweils zumindest eine Bohrung auf, in die eine Schraube eingreifen kann, um die Schneidmodule 34 mittels einer Schraubverbindung an der Messerwelle 20 zu befestigen. Jedes Schneidmodul 34 ist mit einem Schneidzahn ausgestattet.The knife shaft 20 has a circular cross section in the present example case. In the lateral surface 30 a plurality of pockets 32 are present in the present example case. In each of the pockets 32, a cutting module 34 may be inserted and secured. For this purpose, the cutting modules 34 each have at least one bore into which a screw can engage in order to fasten the cutting modules 34 to the blade shaft 20 by means of a screw connection. Each cutting module 34 is equipped with a cutting tooth.

Die Schneidmodule 34 können einzeln von der Messerwelle 20 entfernt werden. Nach dem Lösen der Befestigungsschraube kann das auszuwechselnde Schneidmodul 34 von der Messerwelle 20 entfernt werden. Die Messerwelle 20 selbst muss dazu nicht aus dem Lagerblock 22 ausgebaut werden. Auch müssen keine weiteren Schneidmodule 34, die nicht ausgetauscht werden sollen, entfernt werden. Die Auswechslung defekter Schneidmodule 34 gestaltet sich somit rasch und unproblematisch und ist daher wirtschaftlich vorteilhaft.The cutting modules 34 may be removed one at a time from the knife shaft 20. After loosening the fastening screw, the cutting module 34 to be replaced can be removed from the knife shaft 20. The knife shaft 20 itself does not have to be removed from the bearing block 22. Also, no further cutting modules 34, which are not to be replaced, must be removed. The replacement of defective cutting modules 34 thus designed quickly and easily and is therefore economically advantageous.

Die Schneidzähne der Schneidmodule 34 wirken mit einer feststehenden Messerleiste 40 zusammen, um die Metallspäne 12 zu zerkleinern. Die feststehende Messerleiste 40 ist mittels eines Messerhalters 42 an dem Unterbau 44 der Vorrichtung 10 befestigt. An diesem Unterbau 44 ist auch der Lagerblock 22 für die Messerwelle 20 befestigt.The cutting teeth of the cutting modules 34 cooperate with a stationary male connector 40 to comminute the metal chips 12. The fixed knife bar 40 is fixed by means of a knife holder 42 to the base 44 of the device 10. At this base 44 and the bearing block 22 is fixed to the blade shaft 20.

Die Messerleiste 40 ist im vorliegenden Beispielsfall modular aufgebaut und besitzt mehrere Messereinheiten 46. Die Anzahl der Messereinheiten 46 kann der Anzahl der Schneidmodule 34 in Längsrichtung der Messerwelle 20 gesehen entsprechen. Die einzelnen Messereinheiten 46 sind über eine oder mehrere Schrauben an dem Messerhalter 42 befestigt. Durch den modularen Aufbau der feststehenden Messerleiste 40 können die einzelnen Messereinheiten 46 im Fall eines Defekt ebenfalls leicht ausgetauscht werden.In the present example, the male connector 40 has a modular construction and has a plurality of blade units 46. The number of blade units 46 may correspond to the number of cutting modules 34 seen in the longitudinal direction of the blade shaft 20. The individual blade units 46 are attached to the blade holder 42 via one or more screws. Due to the modular design of the fixed male connector 40, the individual blade units 46 can also be easily replaced in the event of a defect.

Die Vorrichtung 10 besitzt darüber hinaus einen Endlosförderer 50 für Metallspäne 12, dessen Endbereich 52 so nahe an der rotierbar gelagerten Messerwelle 20 platziert ist, dass die einzelnen Schneidmodule 34 als Abstreifer für solche Metallspäne 12 dienen können, die nicht von selbst von dem Endlosförderer 50 abfallen. Auf diese Weise kann verhindert werden, dass einige Späne 12 vom Endlosförderer 50 wieder zurück in Richtung einer hier nicht dargestellten Drehmaschine transportiert werden, was zu Verstopfungen der Drehmaschine führen kann.The apparatus 10 further has an endless conveyor 50 for metal chips 12, the end portion 52 of which is placed so close to the rotatably mounted cutter shaft 20 that the individual cutting modules 34 can serve as wipers for such metal chips 12 that do not fall off the endless conveyor 50 by themselves , In this way it can be prevented that some chips 12 are transported by the endless conveyor 50 back toward a lathe, not shown here, which can lead to blockages of the lathe.

Es hat sich dabei als ausreichend nahe herausgestellt, wenn der Abstand 54 zwischen den Schneidzähnen der Schneidmodule 34 und dem Förderband 56 des Endlosförderers zwischen drei und vier Zentimeter beträgt. Bei diesem Abstand 54 kann sichergestellt werden, dass die Schneidzähne das Förderband 56 nicht beschädigen können, gleichzeitig können die regelmäßig sehr langen Metallspäne 12 auf diese Weise verlässlich von den Schneidmodulen 34 mitgenommen werden.It has proven to be sufficiently close when the distance 54 between the cutting teeth of the cutting modules 34 and the conveyor belt 56 of the endless conveyor is between three and four centimeters. At this distance 54 can be ensured that the cutting teeth can not damage the conveyor belt 56, at the same time the regularly very long metal chips 12 can be reliably taken in this way by the cutting modules 34.

Der Endlosförderer 50 ist in einem Gehäuse 60 angeordnet, das mittels mehrerer Abstandshalter 62 an dem Unterbau 44 des Lagerblocks 22 der Messerwelle 20 befestigt ist. Auf diese Weise ist sichergestellt, dass der voreingestellte Abstand 54 zwischen Förderband 56 und Schneidzähnen eingehalten und nicht versehentlich verändert wird.The endless conveyor 50 is arranged in a housing 60 which is fastened by means of a plurality of spacers 62 to the substructure 44 of the bearing block 22 of the knife shaft 20. In this way it is ensured that the preset distance 54 between conveyor belt 56 and cutting teeth is maintained and not accidentally changed.

Die Antriebswelle 64 des Endlosförderers 50 ist in dem Gehäuse 60 rotierbar gelagert. Die Antriebswelle 64 des Endlosförderers 50 und die Antriebswelle 28 der Messerwelle 20 sind im vorliegenden Beispielsfall über einen Zahnriemen 70 miteinander verbunden. Aus diesem Grund sind beide Antriebswellen 64, 28 mit jeweils einem Zahnrad 72, 74 versehen. Der Zahnriemen 70 verbindet die beiden Zahnräder 72, 74 und damit auch die beiden Antriebswellen 28, 64 miteinander. Der Endlosförderer 50 wird somit über denselben motorischen Antrieb angetrieben wie auch die Messerwelle 20. Somit ist nur ein gemeinsamer motorischer Antrieb erforderlich, was die Herstellungs- und Wartungskosten der Vorrichtung 10 deutlich reduziert.The drive shaft 64 of the endless conveyor 50 is rotatably mounted in the housing 60. The drive shaft 64 of the endless conveyor 50 and the drive shaft 28 of the knife shaft 20 are connected to each other in the present example via a toothed belt 70. For this reason, both drive shafts 64, 28 are each provided with a gear wheel 72, 74. The toothed belt 70 connects the two gears 72, 74 and thus also the two drive shafts 28, 64 with each other. The endless conveyor 50 is thus driven by the same motor drive as the blade shaft 20. Thus, only one common motor drive required, which significantly reduces the manufacturing and maintenance costs of the device 10.

Darüber hinaus ist es durch den gemeinsamen motorischen Antrieb möglich, beide Antriebswellen 28, 64 gemeinsam in Betrieb zu nehmen und auch gemeinsam zu stoppen. Auf diese Weise kann sichergestellt werden, dass bei einer drohenden Verstopfung im Bereich der feststehenden Messerleiste 40 nicht lediglich die Rotation der Messerwelle 20 gestoppt wird, sondern gleichzeitig auch das Förderband 56 des Endlosförderers angehalten wird. Darüber hinaus ist auch eine gleichzeitige Reversion von Messerwelle 28 und Endlosförderer 50 möglich, also das gleichzeitige Ändern der Rotationsrichtung. Eine solche Reversion kann erforderlich sein, um eine beginnende Verstopfung im Bereich der Messerleiste 40 zu verhindern oder wieder aufzulösen. Sofern in diesem Fall jedoch lediglich die Rotation der Messerwelle 20 gestoppt wird, während nach wie vor Metallspäne 12 vom Endlosförderer 50 in den Bereich der Messerleiste 40 transportiert werden, wird die Verstopfung in der Regel nicht aufgelöst sondern vielmehr weiter verschlimmert. Daher müsste eigentlich auch der Endlosförderer 50 angehalten und reversiert werden. Dies ist bei separaten Steuerungen und separaten motorischen Antrieben jedoch häufig nicht so rasch möglich, da längere Wege zurückgelegt werden müssen, um von einem motorischen Antrieb zum nächsten zu gelangen.In addition, it is possible by the common motor drive to take both drive shafts 28, 64 together in operation and also to stop together. In this way, it can be ensured that in the event of an imminent blockage in the area of the stationary knife bar 40 not only the rotation of the knife shaft 20 is stopped, but at the same time the conveyor belt 56 of the endless conveyor is stopped. In addition, a simultaneous reversion of knife shaft 28 and endless conveyor 50 is possible, so the simultaneous change of the direction of rotation. Such a reversion may be required to prevent or redissolve incipient blockage in the area of the male connector 40. If, however, only the rotation of the knife shaft 20 is stopped in this case, while still metal chips 12 are transported by the endless conveyor 50 in the region of the male connector 40, the blockage is not resolved as a rule but rather further aggravated. Therefore, actually, the endless conveyor 50 would have to be stopped and reversed. However, this is often not so quickly possible with separate controls and separate motor drives, since longer distances must be traveled to get from one motor drive to the next.

Im Gegensatz zu dem hier dargestellten Ausführungsbeispiel könnten die beiden Zahnräder 72, 74 auch mittels einer Kette miteinander verbunden werden. Es wäre auch möglich die Zahnräder 72, 74 direkt ineinander greifen zu lassen.In contrast to the embodiment shown here, the two gears 72, 74 may also be connected to each other by means of a chain. It would also be possible to let the gears 72, 74 mesh directly with each other.

Um zu verhindern, dass es bei einer Rotation der Messerwelle 20 zu Verletzungen der Mitarbeiter durch die rotierenden Schneidzähne 36 kommt, ist die Vorrichtung 10 im vorliegenden Beispielsfall in einem Gehäuse 80 angeordnet. Das Gehäuse 80 wird im Bereich der Messerwelle 20 und des Endbereichs 52 des Endlosförderers 50 von einer Haube 82 verschlossen. Die Haube 82 kann vorzugsweise transparent ausgebildet sein, um den Zerkleinerungsvorgang beobachten zu können.In order to prevent injuries of the employees from coming through the rotating cutting teeth 36 during a rotation of the blade shaft 20, the device 10 in the present exemplary case is arranged in a housing 80. The housing 80 is closed by a hood 82 in the region of the knife shaft 20 and the end region 52 of the endless conveyor 50. The hood 82 may preferably be transparent be formed to observe the crushing process can.

Solange die Messerwelle 20 rotiert, kann die Haube 82 nicht geöffnet werden, so dass es nicht möglich ist, mit den Händen in den Bereich der feststehenden Messerleiste 40 zu greifen, was zu schwerwiegenden Verletzungen führen könnte. Erst nach dem Stoppen der Messerwelle 20 kann die Haube 82 geöffnet werden, so dass der Zerkleinerungsbereich frei zugänglich ist. Bei angehaltener Messerwelle 20 kann somit vorsichtig versucht werden, eine drohende Verstopfung wieder aufzulösen. Auch bei einer Reversion der Messerwelle 20 kann ein Öffnen der Haube 82 möglich sein. Umgekehrt setzt eine Inbetriebnahme der Vorrichtung 10 voraus, dass die Haube 82 geschlossen ist. Bei geöffneter Haube 82 ist dagegen keine Rotation der Messerwelle 20 im Uhrzeigersinn möglich.As long as the blade shaft 20 rotates, the hood 82 can not be opened, so that it is not possible to reach with his hands in the area of the fixed blade bar 40, which could lead to serious injuries. Only after stopping the knife shaft 20, the hood 82 can be opened, so that the crushing area is freely accessible. With the knife shaft 20 stopped, it is thus possible to carefully attempt to dissolve an impending blockage. Even with a reversion of the blade shaft 20, an opening of the hood 82 may be possible. Conversely, a commissioning of the device 10 requires that the hood 82 is closed. When the hood 82 is open, however, no rotation of the blade shaft 20 in the clockwise direction is possible.

Claims (7)

  1. Device (10) for comminuting metal chips (12),
    - having at least one rotatably mounted knife shaft (20), to which at least two cutting modules (34) are detachably fixed, the cutting modules (34) each being placed individually on the at least one knife shaft (20) and being fixed detachably such that, as seen in the direction of rotation (26) of the knife shaft (20), there are at least two cutting modules (34) in each case,
    - having a motor drive for rotating the at least one knife shaft (20),
    - having at least one stationary knife bar (40) interacting with the cutting modules (34) of the at least one knife shaft (20),
    - having at least one endless conveyor (50) for metal chips (12), where the metal chips (12) transported by the endless conveyor (50) can be stripped off the endless conveyor (50) by the cutting modules (34) fixed to the knife shaft (20),
    - characterized in that
    - the endless conveyor (50) can be driven by the motor drive of the knife shaft (20).
  2. Device according to Claim 1,
    - characterized in that
    - the endless conveyor (50) has a drive shaft (64),
    - the at least one rotatably mounted knife shaft (20) is connected to the drive shaft (64) of the endless conveyor (50).
  3. Device according to Claim 2,
    - characterized in that
    - the at least one rotatably mounted knife shaft (20) is connected to the drive shaft (64) of the endless conveyor (50) via a chain or a toothed belt (70).
  4. Device according to one of the preceding claims,
    - characterized in that
    - the at least one knife shaft (20) is rotatably mounted in a bearing block (22),
    - the endless conveyor (50) is fixed to the bearing block (22) via at least one spacer (62).
  5. Device according to one of the preceding claims,
    - characterized in that
    - the at least one rotatably mounted knife shaft (20) and the end region (52) of the endless conveyor (50) can be covered by a common hood (82).
  6. Device according to one of the preceding claims,
    - characterized in that
    - the rotatably mounted knife shaft (20) has multiple pockets (32) in its outer surface (30),
    - a cutting module (34) can in each case be inserted into the pockets (32).
  7. Device according to Claim 6,
    - characterized in that
    - the rotatably mounted knife shaft (20) is formed cylindrically.
EP15003487.4A 2015-12-08 2015-12-08 Device for grinding metal chips Active EP3178560B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL15003487T PL3178560T3 (en) 2015-12-08 2015-12-08 Device for grinding metal chips
EP15003487.4A EP3178560B1 (en) 2015-12-08 2015-12-08 Device for grinding metal chips
TR2018/08060T TR201808060T4 (en) 2015-12-08 2015-12-08 Device for shredding metal chips.
ES15003487.4T ES2671022T3 (en) 2015-12-08 2015-12-08 Device for crushing metal shavings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15003487.4A EP3178560B1 (en) 2015-12-08 2015-12-08 Device for grinding metal chips

Publications (2)

Publication Number Publication Date
EP3178560A1 EP3178560A1 (en) 2017-06-14
EP3178560B1 true EP3178560B1 (en) 2018-04-04

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ID=54848376

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15003487.4A Active EP3178560B1 (en) 2015-12-08 2015-12-08 Device for grinding metal chips

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EP (1) EP3178560B1 (en)
ES (1) ES2671022T3 (en)
PL (1) PL3178560T3 (en)
TR (1) TR201808060T4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3865216B1 (en) 2020-02-13 2022-10-12 Karl-Heinz Kilian Device for grinding metal chips

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1738346A1 (en) * 1989-07-20 1992-06-07 Самарское Научно-Производственное Объединение По Механизации И Автоматизации Производства Chips grinder
DE4406675A1 (en) 1993-03-08 1994-09-15 Erdwich Zerkleinerungs Systeme Device for cutting comminution of materials
DE9418544U1 (en) 1994-11-19 1995-03-16 Alpirsbacher Maschinenbau GmbH & Co.KG, 72275 Alpirsbach Metal chip crusher
DE10006757C1 (en) * 2000-02-15 2001-05-17 Mayfran Int Bv Crushing process for chips or swarf, involving recording rate of alteration of load to detect blocking chips and ejecting these chips
US7828235B2 (en) * 2007-07-13 2010-11-09 Fellowes, Inc. Shredder auto feed system
DE202009017062U1 (en) 2009-12-17 2010-03-18 Kilian, Karl-Heinz Device for chipping chips

Non-Patent Citations (1)

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Title
None *

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Publication number Publication date
ES2671022T3 (en) 2018-06-04
PL3178560T3 (en) 2018-10-31
TR201808060T4 (en) 2018-06-21
EP3178560A1 (en) 2017-06-14

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