EP0090064B1 - Slicing machine with a sharpening device for the circular knive - Google Patents

Slicing machine with a sharpening device for the circular knive Download PDF

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Publication number
EP0090064B1
EP0090064B1 EP82102659A EP82102659A EP0090064B1 EP 0090064 B1 EP0090064 B1 EP 0090064B1 EP 82102659 A EP82102659 A EP 82102659A EP 82102659 A EP82102659 A EP 82102659A EP 0090064 B1 EP0090064 B1 EP 0090064B1
Authority
EP
European Patent Office
Prior art keywords
hood
grinding
protective
slicing machine
circular blade
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.)
Expired
Application number
EP82102659A
Other languages
German (de)
French (fr)
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EP0090064A1 (en
Inventor
Robert T. Escher
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.)
Maatschappij Van Berkels Patent BV
Original Assignee
Maatschappij Van Berkels Patent BV
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 Maatschappij Van Berkels Patent BV filed Critical Maatschappij Van Berkels Patent BV
Priority to DE8282102659T priority Critical patent/DE3271328D1/en
Priority to EP82102659A priority patent/EP0090064B1/en
Priority to AT82102659T priority patent/ATE19987T1/en
Publication of EP0090064A1 publication Critical patent/EP0090064A1/en
Application granted granted Critical
Publication of EP0090064B1 publication Critical patent/EP0090064B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/22—Safety devices specially adapted for cutting machines
    • B26D7/225—Safety devices specially adapted for cutting machines for food slicers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/12—Means for treating work or cutting member to facilitate cutting by sharpening the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/22—Safety devices specially adapted for cutting machines

Definitions

  • the invention relates to a slicer of the type specified in the preamble of claim 1.
  • the protective hood is pivotally connected to the frame of the machine via a pivot axis running approximately parallel to the plane of the circular knife. If pressure is exerted laterally on the protective hood, the grinding tool moves from a rest position, in which it is arranged at a free distance from the circular knife, into a grinding position, in which the grinding tool is effective on the rotating knife.
  • the protective hood is held in the neutral rest position by stops and spring members when no pressure is exerted.
  • the invention has for its object to develop a simple slicer of the type mentioned in the preamble of claim 1, which is easy to clean and excludes injuries from the circular knife. This is achieved according to the invention by the measures specified in the characterizing part of claim 1, which have the following special meaning:
  • connection between the wall part and the hood can be made by a one-way connection.
  • the coupling position between the wall part and the protective hood is then already secured by the connection itself.
  • This version will be used in particular when this wall part is intended to close an opening in the upper area of the hood as a cover.
  • the coupling between the wall part carrying the grinding wheel and the hood can alternatively take place via a push connection. This is particularly preferable if the removable wall part is formed by an entire side wall of the hood.
  • the wall part is then slidably received in sliding fashion in guides on the ceiling of the protective hood.
  • the direction of this pushing movement for mounting the wall part in the hood is expediently chosen in accordance with the direction of the swiveling movement of the hood in order to transfer it between its rest and grinding position. If necessary, latching positions can be provided to secure the mounting positions of the wall part.
  • the circumferential bead As a protective strip separate from the hood, which is fastened to the machine frame and therefore also runs protectively around the cutting edge of the circular knife when the hood is removed. Now the entire circular knife is covered in the circumferential area. In a partial area there is a thickness plate brought into its zero position when cleaning, which determines the slice thickness of the clippings in use. In the entire remaining circumferential area, the protective strip is now arranged according to the invention.
  • the protective strip can also perform other important functions. If, on the inner edge of the protective strip facing the cutting edge of the circular knife, a shape is provided which engages behind the grinding wheel with its upper circumferential area when the wall part carrying the grinding tool is mounted on the protective hood, then this protective strip forms a connection with the wall part carrying the grinding tool Lock that normally precludes releasing the guard from the machine frame. To do this, it is first necessary to detach the wall part carrying the grinding wheel from the hood, which in the case of the aforementioned thrust-like connection requires the wall part to be pulled out. Only then is the protective strip released by the grindstone and enables the hood to be lifted off. This ensures that only experienced people who know this sequence of movements can remove the hood from the machine.
  • the protective strip can be to serve as a support for a spring element which positions the neutral rest position of the protective hood. Now it is also possible to design this spring member very inexpensively and foolproof as a two-leg leaf spring, which includes the blade-shaped protective strip with its spring legs in the case of assembly.
  • the protective strip can interact with guide surfaces on the protective hood during the assembly process, which ensure the correct position of the hood on the machine frame and prevent damage to the circular knife. These guide surfaces can also form stops which interact with the protective strip in the assembled state of the hood and serve to limit the pivoting angle when the hood is to be brought into the grinding position.
  • the slicing machine 10 comprises a machine frame 11, in which a drive motor for rotating a circular knife 12 is provided.
  • Fig. 1 shows the view of the housing part 13 of this drive motor, while on the opposite side of the machine 10 there is a carriage, not recognizable, which serves to hold the material to be cut and which can be moved back and forth in a plane approximately parallel to the circular knife 12 .
  • a thickness plate 14 which can be adjusted by a handle 16 in its parallel spacing with respect to the cutting edge 15 of the circular knife 12 in the sense of the double arrow 17 shown. This setting determines the thickness of the cut product.
  • a hood 18 which, as can best be seen from FIG. 2, surrounds a rank section 19 of the circular knife 12 in a protective manner.
  • the hood 18 is provided with a bead 20 located on it, which surrounds the cutting edge 15 of the knife 12 circumferentially at a distance.
  • the hood 18 also serves to hold an abrasive tool, which here consists of a rotatably mounted grinding wheel 21 and a trimming stone 22. While the deburring stone 22 is fastened on the inside of the one side wall 23 of the hood 18, the grinding wheel 21 sits with its bearing block 24 on a special wall part 25 which closes an opening 26 in the ceiling 27 of the hood 18 in the case of assembly.
  • the wall part 25 here consists of a cover 25 which can be moved via a handle 87 and which requires a special kind of steering movement for its assembly.
  • the hood 18 sits with a bush 33 on an axle bolt 34 and determines the pivot axis 35, indicated by dash-dotted lines in FIG. 2, about which the hood 18 can be pivoted in two alternative grinding positions.
  • the hood 18 is normally held in its rest position shown in FIG. 2 by a spring member 36, the design of which can be seen from the sectional views of FIGS.
  • the block 40 finally has an opening 43 extending transversely to the bore 41 for inserting a pin 42 which is fixedly connected to the machine frame 11 and which ensures that the block 40 is pivoted at this point.
  • the hood 18 is mounted with the machine frame 11 in that on the one hand the sleeve 33 and the axle bolt 34 and on the other hand the plug opening 43 and the pivot 42 are coupled to one another.
  • a monitoring switch 44 indicated in FIG. 2 which is arranged in a safety circuit and interrupts the power supply for driving the circular knife 12 when the hood 18 is removed.
  • a control pin 45 can be longitudinally displaceably received in a longitudinal bore of the axle pin 34, which is supported at one end on an adjusting screw 76 for adjustment purposes in a bush 33 and at the other end rests on a resilient tongue 47, which acts on a key actuator 48 of the switch 44. If the hood 18 is removed, the tongue 47 releases the pushbutton actuator 48, which then moves a monitoring switch 44 into its “off” position. The safety circuit is broken.
  • the drive of the circular knife 12 cannot be switched on. If, on the other hand, the hood 18 is put on, the weight presses via the threaded pin 46 and the control pin 45 onto the tongue 47, which presses the button actuator 48 into the switch 44 and thereby closes the safety circuit. Now the drive of the circular knife 12 can be switched on.
  • FIG. 5 to 11 show another exemplary embodiment of a slicing machine 10 'according to the invention, where, for the sake of a better overview, insofar as there are no fundamental deviations, the same reference numerals as in the previous exemplary embodiment have been used in the machine 10. In this respect, the previous description applies.
  • FIG. 5 a central cover plate 49, which can be seen in the sectional view of FIG. 11, has been removed in order to obtain a view of the circular knife 12 and its surroundings. For the same reason, a hood 51 has been removed here.
  • a circular sector 52 lies in front of the cutting edge 15 of the circular knife 12 in a gap distance 53 an end edge 54 of the thickness plate 14 already mentioned in the first exemplary embodiment.
  • a protective strip 50 which in this exemplary embodiment is designed as a profiled blade, the cross section of which can be seen in FIG. 10, which is in the form of a sickle at a close distance the cutting edge 15 of the knife 12 runs around.
  • This protective strip 50 thus also extends in the upper edge area 56 of the knife 12 used to hold the hood 51, as shown in FIG. 5.
  • the strip, as the strip 50 ' shows in the radial section of FIG.
  • the deep-drawn leg 57 of the angle profile also closes lateral access to the sharp cutting edge 15 in a particularly good manner.
  • the protective strip 50 or 50 ' is firmly connected to the machine frame 11, which is done, for example, by the tab 58 shown in FIG. 1 between the frame and the strip 50.
  • the hood 51 here carries a bolt 59 with a conical end, which, as shown in FIG. 6, can be inserted into a bushing 60 provided on the machine frame 11 and for directional purposes may have a longitudinal groove 61 which, with the shaft end, leads into the interior of the bushing 60 protruding screw 61 or the like cooperates.
  • the end of the bolt 59 is provided with a widened head 63 which has a gap 64 aligned with the longitudinal groove 61 for the passage of the aforementioned shaft end of the screw 62.
  • the head 63 already precludes the ability to insert the bolt 59 into the bush 60 because the end face of the head 63 abuts the shaft end of the screw 62. Conversely, in any other rotational position of the hood 51, it is not possible to move the head 63 past the shaft end of the screw 62 because this shaft end is against the inside shoulder of the head 63. In the fully inserted state of the bolt 59, the shaft end of the screw 62 finally comes into an extension 65 at the upper end of the longitudinal groove 61, as a result of which a limited pivoting of the hood 51 about the pivot axis 35 indicated by dash-dotted lines in FIG. 6 is possible in a similar manner to that in the first exemplary embodiment the machine 10 recognizable.
  • a spring member which, in the present case, consists of a two-legged leaf spring 66 which, when the hood 51 is in the installed state, receives a section of the protective strip 50 between its two legs 67, as shown by the dot-dash line in FIG indicated position of the protective strip 50 can be seen.
  • the leaf spring 66 is thus supported on both sides of the protective strip 50 and thereby determines the neutral rest position of the hood 51, where both elements 21, 22 of the grinding tool are ineffective with respect to the circular knife 12.
  • the effective grinding position of the grinding tool 21, 22 is achieved in the case of assembly of the complete hood 51 or 18 in both exemplary embodiments of the invention by the same hand movement, which is why this can be illustrated for both machines 10, 10 'with reference to FIG. 1.
  • the hood is pressed in the direction of arrow 68 in FIG. 1, the grinding wheel 21 comes to rest on the edge 15 of the circular knife 12 and sharpens it.
  • the protective strip 50 there is provided with a recess 69 into which the grinding stone 21 fits with its outline in the installed state.
  • the cutting edge 15 of the knife would be accessible for grinding purposes without weakening the protective strip 50 through such cutouts 69 if the strip were deformed in the area of the grinding wheel 21.
  • the movement 68 takes place against the restoring action of the spring member 36 in the machine 10, as a result of which the helical spring compresses between the block 40 there and the receptacle 37 on the pin 38. In the case of the machine 10 ', only the relevant leg 67 of the leaf spring 66 is deformed.
  • the deburring stone 22 of the grinding tool can be put into effect when the hood 18 or 51 is pivoted in the direction of the opposite arrow 70 indicated in FIG. 1. Now the deburring stone 22 comes into contact with the circular knife 12 from the opposite side and deburrs the cutting edge 15.
  • the end of the pin 30 in the receptacle 37 is removed from the block 40 rotatably mounted at 42, as a result of which the coil spring 36 is elongated and tends to contract again.
  • the one leg end 67 of the leaf spring 66 is deformed by being supported on the protective strip 50. If you let go of the hood 18 or 51, it will automatically return to its starting position of the aforementioned rest position due to the spring action at 36 or 66.
  • the hood 51 Apart from a hood extension 72, which allows a channel 73 for the passage of the circular knife 12 against the thickness plate 14, the hood 51 has a rectangular outline. However, apart from the top wall 74, only three side walls 75, 76, 77 are fixedly connected to the actual hood 51, while the fourth side wall, as best shown in FIG. 9, is missing and instead has an opening 78 into which a thrust-like structure 80 is introduced.
  • This consists of a sliding plate 81, which is accommodated in a longitudinally displaceable manner in guides 82 mounted on the underside of the top wall 74, and of an end plate 79 running at right angles thereto, which forms the missing side wall of the hood 51 when this push-like structure 80 is fully inserted, as shown in FIG. 8 emerges.
  • the bearing block 24 mentioned above for the rotary mounting of the grinding wheel 21 is fastened in a specific inclination position.
  • the longitudinal position of the grinding wheel 21 can be readjusted by loosening a screw 87 which engages a bush 88 of the shaft 89.
  • the edge areas of the end plate 79 overlap the contours of the adjacent side walls 75, 77 and the top wall 74 of the hood 51 and come to abut against the associated edges 83, as can be seen from FIGS. 7 and 8.
  • This stop action at 83 fixes the end position of the thrust 80 and the end position of the grinding wheel 21.
  • the insertion direction 86 of the push 80 and the mentioned pressure application 68 for pivoting the hood 51 into its mentioned grinding position have the same direction, as can be seen from FIG.
  • this pressure is exerted 68, the force is transmitted from the end plate 79 to the abutting edges 73 of the walls 74, 75, 77.
  • the thrust 80 In order to be able to remove the hood 51 completely, the thrust 80 must be pulled out in whole or in part, because then the grinding wheel 21 comes out of the recess 69 in the protective strip 50. Now the hood 51 can, against the direction of the assembly arrow shown in Fig. 6 le 71 are lifted until the legs 67 of the leaf spring 66 release the part of the protective strip 50 which it encompasses and the bolt 59 has come out of the bush 60 in the machine frame 11. If this should not already have happened, the thrust 80 can now be pulled out of the hood 51, making the interior particularly easy to clean. The upper area 56 of the machine 10 ', which is otherwise covered by the hood 51, can now be cleaned conveniently, the risk of injury on the cutting edge 15 of the knife 12 being eliminated by the protective strip 50 running along it.
  • a guide effect can also be achieved by profiling the inside of the hood, which according to FIG. 10 consists of an inner rib 84 and the inner surface 85 of the side wall 76 is formed.
  • protective strip 50 interacts with these profiles 84, 85 and is guided into the intended space.
  • the ends of the legs 67 of the leaf spring 66 also serve as further guide means when these are pushed over the protective strip 50 in the sense of the left-hand mounting arrow 71 from FIG. 6.
  • FIGS. 5 to 10 To better secure the insertion position, it is also advisable in the exemplary embodiment of FIGS. 5 to 10 to provide latching positions between the drawer 80 and the hood 51.
  • these consist of a spring-loaded ball indicated in FIG. 6, which is embedded in a bore in the sliding plate 81 and, in the case of coupling, cooperates with a corresponding recess on the inner surface of the top wall 74.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

1. A slicing machine (10, 10') including a grinding tool (21, 22) for the rotating circular blade (12) the grinding tool having a pivotally supported grinding disc (21) and, if need be, a trimming stone (22) and being mounted in the inner space (32) of a protective hood (18; 51) which protectively encloses an edge portion (56) of the circular blade (12), the protective hood (18; 51) being connected with the frame (11) of the machine (10; 10') via a swivel axis (35) extending approximately parallelly to the plane of the circular blade (12) and adapted to be pivoted from a position of rest, in which the grinding tool (21, 22) is spaced free from the circular blade (12), into a grinding position, in which the grinding tool (21, 22) engages at the rotating circular blade (12) with a grinding effect, characterized in that the protective hood (18; 51) has a wall portion (25; 80) releasable from the hood, to which is secured at least the grinding disc (21) of the grinding tool, and that inside the protective hood (18; 51) the cutting edge (15) of the circular blade (12) is surrounded by a circumferential bead (20; 50; 50') at least alongside its edge portion (56) provided there.

Description

Die Erfindung bezieht sich auf eine Aufschnittschneidemaschine der im Oberbegriff des Anspruches 1 angegebenen Art.The invention relates to a slicer of the type specified in the preamble of claim 1.

Bei einer Aufschnittmaschine dieser Art gemäß der nicht von veröffentlichten IT-23321A/81 ist die Schutzhaube über eine annähernd parallel zur Ebene des Rundmessers verlaufende Schwenkachse mit dem Gestell der Maschine schwenkbar verbunden. Wird auf die Schutzhaube seitlich Druck ausgeübt, so gelangt das Schleifzeug aus einer Ruhelage, in der es in freiem Abstand zum Rundmesser angeordnet ist, in eine Schleiflage, in der das Schleifzeug am rotierenden Messer schleifwirksam ist. Durch Anschläge und Federglieder wird die Schutzhaube, wenn kein Druck ausgeübt wird, in der neutralen Ruhelage gehalten.In a slicer of this type according to IT-23321A / 81, which is not published, the protective hood is pivotally connected to the frame of the machine via a pivot axis running approximately parallel to the plane of the circular knife. If pressure is exerted laterally on the protective hood, the grinding tool moves from a rest position, in which it is arranged at a free distance from the circular knife, into a grinding position, in which the grinding tool is effective on the rotating knife. The protective hood is held in the neutral rest position by stops and spring members when no pressure is exerted.

Diese Bedienung des Schleifzeugs ist zwar einfach, doch ergibt sich der Nachteil, daß man zum Reinigen des Schleifzeugs die Haube abnehmen muß. Dann ist nämlich die Schneidkante des Rundmessers unbedeckt und kann bei Unachtsamkeit leicht zu Verletzungen führen.This operation of the grinding tool is simple, but there is the disadvantage that the hood must be removed to clean the grinding tool. Then the cutting edge of the circular knife is uncovered and can easily lead to injuries if careless.

Bei einer Aufschnittmaschine anderer Art (US-A-3 958 478) ist es bekannt, die Schutzhaube über Kulissenführungen parallenbeweglich mit dem Gestell in der Maschine zu verbinden. Das Schleifzeug wird aus einer abgesenkten sowie entfernten Position zur Schneidkante des Rundmessers in eine angehobene, die Schneidkante berührende Lage überführt. Diese Führungen sind aufwendig und kostspielig. Zu Reinigungszwecken muß auch hier die Haube entfernt werden, womit die Schneidkante des Rundmessers ungeschützt bleibt.In a slicer of another type (US-A-3 958 478) it is known to connect the protective hood to the frame in the machine in parallel movement via link guides. The grinding tool is transferred from a lowered and removed position to the cutting edge of the circular knife into a raised position which touches the cutting edge. These tours are complex and expensive. The hood must also be removed for cleaning purposes, which means that the cutting edge of the circular knife remains unprotected.

Der Erfindung liegt die Aufgabe zugrunde, eine einfache Aufschnittmaschine der im Oberbegriff des Anspruches 1 genannten Art zu entwickeln, die sich bequem reinigen läßt und Verletzungen durch das Rundmesser ausschließt. Dies wird erfindungsgemäß durch die im Kennzeichen des Anspruches 1 angeführten Maßnahmen erreicht, denen folgende besondere Bedeutung zukommt :The invention has for its object to develop a simple slicer of the type mentioned in the preamble of claim 1, which is easy to clean and excludes injuries from the circular knife. This is achieved according to the invention by the measures specified in the characterizing part of claim 1, which have the following special meaning:

Zum Reinigen der Schutzhaube genügt es, den zur Halterung des Schleifzeugs dienenden Wandteil von der Schutzhaube abzulösen. Die Reinigung des Schleifzeugs erfolgt dann auf bequeme und gründliche Weise außerhalb der Schutzhaube, während die Reinigung des Innenraums der Haube durch die Öffnung erfolgen kann, die nach Entfernen des Wandteils an der Schutzhaube enstanden ist. Verletzungen sind dabei ausgeschlossen, weil die Schneidkante des Rundmessers im Inneren der Schutzhaube durch den Umfangswulst abgedeckt ist. Eine Demontage der Schutzhaube von Gestell der Maschine ist nicht notwendig.To clean the protective hood, it is sufficient to detach the wall part used to hold the grinding tool from the protective hood. The cleaning of the grinding tool is then carried out in a comfortable and thorough manner outside the protective hood, while the interior of the hood can be cleaned through the opening which has been created in the protective hood after removal of the wall part. Injuries are excluded because the cutting edge of the circular knife inside the protective hood is covered by the peripheral bead. It is not necessary to remove the protective hood from the frame of the machine.

Die Verbindung zwischen dem Wandteil und der Haube kann durch eine Einrenkverbindung erfolgen. Im Montagezustand ist dann nämlich die Kupplungslage zwischen dem Wandteil und der Schutzhaube schon durch die Verbindung selbst gesichert. Diese Ausführung wird man insbesondere dann anwenden, wenn dieser Wandteil als Deckel eine im oberen Bereich der Haube befindliche Öffnung verschließen soll. Die Kupplung zwischen dem die Schleifscheibe tragenden Wandteil und der Haube kann alternativ über eine Schubverbindung erfolgen. Dies ist insbesondere dann vorzuziehen, wenn der ablösbare Wandteil durch eine ganze Seitenwand der Haube gebildet wird.The connection between the wall part and the hood can be made by a one-way connection. In the assembled state, the coupling position between the wall part and the protective hood is then already secured by the connection itself. This version will be used in particular when this wall part is intended to close an opening in the upper area of the hood as a cover. The coupling between the wall part carrying the grinding wheel and the hood can alternatively take place via a push connection. This is particularly preferable if the removable wall part is formed by an entire side wall of the hood.

Der Wandteil ist dann über Gleitelemente schubartig in Führungen an der Decke der Schutzhaube parallel verschiebbar aufgenommen. Die Richtung dieser Schubbewegung für die Montage des Wandteils in der Haube wird zweckmäßigerweise übereinstimmend mit der Richtung der Schwenkbewegung der Haube gewählt, um diese zwischen ihrer Ruhe- und Schleiflage zu überführen. Bedarfsweise können Rasthaltungen zur Sicherung der Montagepositionen des Wandteils vorgesehen sein.The wall part is then slidably received in sliding fashion in guides on the ceiling of the protective hood. The direction of this pushing movement for mounting the wall part in the hood is expediently chosen in accordance with the direction of the swiveling movement of the hood in order to transfer it between its rest and grinding position. If necessary, latching positions can be provided to secure the mounting positions of the wall part.

Normalerweise genügt es für die Sicherheit, wenn die Umfassungwulst ein Bestandteil der Schutzhaube ist, doch ist es in manchen Fällen nötig, die Schutzhaube ganz von ihrer Schwenkachse an der Maschine zu lösen, um sonst unzugängliche Stellen reinigen zu können. Es reicht für die Sicherheit in diesen Fällen nicht immer aus, über ein Fühlglied bei abgenommener Haube den Antriebsmotor der Maschine unwirksam zu setzen, denn schon eine ein ruhendes Rundmesser berührende Hand unterliegt der Verletzungsgefahr. Aus diesem Grunde ist es erfindungsgemäß besonders vorteilhaft, den Umfangswulst als eine von der Haube gesonderte Schutzleiste auszubilden, die am Maschinengestell befestigt ist und daher auch bei abgenommener Haube schützend um die Schneidkante des Rundmessers verläuft. Jetzt ist das gesamte Rundmesser im Umfangsbereich abgedeckt. In einem Teilbereich befindet sich im Reinigungsfall eine in ihre Nullstellung gebrachte Dickenplatte, welche im Gebrauchsfall die Scheibendicke des Schnittguts bestimmt. Im ganzen restlichen Umfangsbereich ordnet man nun erfindungsgemäß die Schutzleiste an.It is normally sufficient for safety if the surrounding bead is part of the protective hood, but in some cases it is necessary to completely detach the protective hood from its pivot axis on the machine in order to be able to clean otherwise inaccessible areas. In these cases, it is not always sufficient for safety to set the drive motor of the machine ineffective using a sensor element with the hood removed, because even a hand touching a stationary circular knife is subject to the risk of injury. For this reason, it is particularly advantageous according to the invention to design the circumferential bead as a protective strip separate from the hood, which is fastened to the machine frame and therefore also runs protectively around the cutting edge of the circular knife when the hood is removed. Now the entire circular knife is covered in the circumferential area. In a partial area there is a thickness plate brought into its zero position when cleaning, which determines the slice thickness of the clippings in use. In the entire remaining circumferential area, the protective strip is now arranged according to the invention.

Die Schutzleiste kann noch weitere wichtige Funktionen übernehmen. Sieht man an dem der Schneidkante des Rundmessers zugekehrten Innenrand der Schutzleiste eine Ausformung vor, welche die Schleifscheibe mit ihrem oberen umfangsbereich hintergreift, wenn der das Schleifzeug tragende Wandteil an der Schutzhaube montiert ist, so bildet diese Schutzleiste in Verbindung mit dem das Schleifzeug tragenden Wandteil eine Sperre, die es normalerweise ausschließt, die Schutzhaube von dem Maschinengestell zu lösen. Um dies auszuführen, ist es zunächst erforderlich, den die Schleifscheibe tragenden Wandteil von der Haube zu lösen, was im Falle der erwähnten schubartigen Verbindung ein herausziehen des Wandteils voraus-setzt. Erst dann ist die Schutzleiste vom Schleifstein freigegeben und ermöglicht ein Abheben der Haube. Damit ist sichergestellt, daß nur erfahrene Personen, welche diese Bewegungsfolge kennen, die Haube von der Maschine demontieren können.The protective strip can also perform other important functions. If, on the inner edge of the protective strip facing the cutting edge of the circular knife, a shape is provided which engages behind the grinding wheel with its upper circumferential area when the wall part carrying the grinding tool is mounted on the protective hood, then this protective strip forms a connection with the wall part carrying the grinding tool Lock that normally precludes releasing the guard from the machine frame. To do this, it is first necessary to detach the wall part carrying the grinding wheel from the hood, which in the case of the aforementioned thrust-like connection requires the wall part to be pulled out. Only then is the protective strip released by the grindstone and enables the hood to be lifted off. This ensures that only experienced people who know this sequence of movements can remove the hood from the machine.

Eine weitere Funktion der Schutzleiste kann darin bestehen, als Abstützung für ein Federglied zu dienen, welches die neutrale Ruhelage der Schutzhaube positioniert. Jetzt ist es auch möglich dieses Federglied sehr kostengünstig und narrensicher als zweischenklige Blattfeder auszubilden, welche die klingenförmige Schutzleiste im Montagefall mit ihren Federschenkeln umfaßt. Schließlich kann die Schutzleiste mit Führungsflächen an der Schutzhaube beim Montagevorgang zusammenwirken, welche die ordnungsgemäße Position der Haube am Maschinengestell gewährleisten und eine Beschädigung des Rundmessers verhindern. Dieser Führungsflächen können zugleich Anschläge bilden, die im Montagezustand der Haube mit der Schutzleiste zusammenwirken und zur Begrenzung des Schwenkwinkels dienen, wenn die Haube in Schleiflage zu bringen ist.Another function of the protective strip can be to serve as a support for a spring element which positions the neutral rest position of the protective hood. Now it is also possible to design this spring member very inexpensively and foolproof as a two-leg leaf spring, which includes the blade-shaped protective strip with its spring legs in the case of assembly. Finally, the protective strip can interact with guide surfaces on the protective hood during the assembly process, which ensure the correct position of the hood on the machine frame and prevent damage to the circular knife. These guide surfaces can also form stops which interact with the protective strip in the assembled state of the hood and serve to limit the pivoting angle when the hood is to be brought into the grinding position.

Weitere Maßnahmen und Vorteile der Erfindung ergeben sich auch aus den Zeichnungen, der nachfolgenden Beschreibung und den Ansprüchen. In den Zeichnungen ist die Erfindung in mehreren Ausführungsbeispielen dargestellt. Es zeigen :

  • Figur 1 die perspektivische Ansicht der erfindungsgemäßen Aufschnittschneidemaschine,
  • Figur 2 eine Querschnittsansicht durch die Schutzhaube der Maschine von Fig. 1,
  • Figur 3 die Unteransicht der Schutzhaube von Fig. 2 in einer Schnittansicht der Maschine längst der Schnittlinie 111-111 von Fig. 4,
  • Figur 4 eine Querschnittansicht durch die Schutzhaube längst der Schnittlinie IV-IV von Fig. 3,
  • Figur 5 eine Seitenansicht einer zweiten Ausführungsform der erfindungsmäßen Aufschnittschneidemaschine im Blickrichtung von der Seite, wo ein das Schneidgut aufnehmender hin- und herbeweglicher Schlitten angeordnet wird, der hier weggelassen wurde und zugleich die Schutzhaube entfernt ist,
  • Figur 6 die aus entgegengesetzer Richtung sich ergebende Seitenansicht der Maschine von Fig. 5 mit abgenommener Schutzhaube, die in ihre Bestandteile zerlegt ist,
  • Figur 7 die Unteransicht auf die Schutzhaube von Fig. 6 in zusammengebautem Zustand,
  • Figur 8 eine Querschnittansicht durch die Haube längst der Schnittlinie VIII-VIII von Fig. 7,
  • Figur 9 die entsprechende Querschnittansicht durch die Haube von Fig. 7, wobei allerdings die Haube in ihre Bestandteile zerlegt ist,
  • Figur 10 eine Querschnittansicht durch einen hinteren Teil der Haube, die eine besondere Innenprofilierung zeigt und
  • Figur 11 die Querschnittansicht durch eine alternative Ausgestaltung einer Schutzleiste im Umfangsbereich des Rundmessers.
Further measures and advantages of the invention also result from the drawings, the following description and the claims. The invention is shown in several exemplary embodiments in the drawings. Show it :
  • FIG. 1 shows the perspective view of the slicing machine according to the invention,
  • FIG. 2 shows a cross-sectional view through the protective hood of the machine from FIG. 1,
  • 3 shows the bottom view of the protective hood of FIG. 2 in a sectional view of the machine along section line 111-111 of FIG. 4,
  • FIG. 4 shows a cross-sectional view through the protective hood along section line IV-IV of FIG. 3,
  • FIG. 5 shows a side view of a second embodiment of the slicing machine according to the invention in the viewing direction from the side where a reciprocating carriage which holds the material to be cut is arranged, which has been omitted here and at the same time the protective hood has been removed,
  • FIG. 6 shows the side view of the machine from FIG. 5, which results from the opposite direction, with the protective hood removed, which is broken down into its components,
  • FIG. 7 shows the bottom view of the protective hood from FIG. 6 in the assembled state,
  • 8 shows a cross-sectional view through the hood along section line VIII-VIII of FIG. 7,
  • FIG. 9 shows the corresponding cross-sectional view through the hood of FIG. 7, although the hood is broken down into its components,
  • Figure 10 is a cross-sectional view through a rear part of the hood, showing a special internal profile and
  • 11 shows the cross-sectional view through an alternative embodiment of a protective strip in the peripheral region of the circular knife.

Die Aufschnittschneidemaschine 10 umfaßt ein Maschinengestell 11, worin ein Antriebsmotor zur Rotation eines Kreismessers 12 vorgesehen ist. Fig. 1 zeigt die Ansicht auf den Gehäuseteil 13 dieses Antriebsmotors, während auf der gegenüberliegenden Seite der Maschine 10 sich ein nicht näher erkennbarer Schlitten befindet, der zur Aufnahme des Schneidguts dient und der in einer Ebene etwa parallel zum Rundmesser 12 hin- und herbeweglich ist. In einer Ebene parallel zum Rundmesser 12 ist auch noch eine Dickenplatte 14 angeordnet, die durch eine Handhabe 16 in ihrem Parallelabstand bezüglich der Schneidkante 15 des Rundmessers 12 im Sinne des eingezeichneten Doppelpfeils 17 einstellbar ist. Durch diese Einstellung wird die Dicke des abgeschnittenen Guts bestimmt.The slicing machine 10 comprises a machine frame 11, in which a drive motor for rotating a circular knife 12 is provided. Fig. 1 shows the view of the housing part 13 of this drive motor, while on the opposite side of the machine 10 there is a carriage, not recognizable, which serves to hold the material to be cut and which can be moved back and forth in a plane approximately parallel to the circular knife 12 . In a plane parallel to the circular knife 12 there is also a thickness plate 14, which can be adjusted by a handle 16 in its parallel spacing with respect to the cutting edge 15 of the circular knife 12 in the sense of the double arrow 17 shown. This setting determines the thickness of the cut product.

Im oberen Bereich der Maschine 10 befindet sich eine Haube 18, die, wie am besten aus Fig. 2 ersichtlich ist einen Rangabschnitt 19 des Rundmessers 12 schützend umgibt. In diesem Ausführungsbeispiel ist die Haube 18 mit einem an ihrem befindlichen Wulst 20 vergesehen, der die Schneidkante 15 des Messers 12 mit einem Abstand umfangsmäßig umschließt. Die Haube 18 dient ferner zur Aufnahme eines Schleifzeugs, das hier aus einer drehbar gelargerten Schleifscheibe 21 und einem Abgratstein 22 besteht. Während der Abgratstein 22 auf der Innenseite der einen Seitenwand 23 der Haube 18 befestigt ist, sitzt die Schleifscheibe 21 mit ihrem Lagerbock 24 an einem besonderen Wandteil 25, der im Montagefall eine Öffnung 26 in der Decke 27 der Haube 18 verschließt. Der Wandteil 25 besteht hier aus einem über eine Handhabe 87 zu bewegenden Deckel 25, der zu seiner Montage eine Einrenkbewegung besonderer Art erforderlich macht.In the upper area of the machine 10 there is a hood 18 which, as can best be seen from FIG. 2, surrounds a rank section 19 of the circular knife 12 in a protective manner. In this exemplary embodiment, the hood 18 is provided with a bead 20 located on it, which surrounds the cutting edge 15 of the knife 12 circumferentially at a distance. The hood 18 also serves to hold an abrasive tool, which here consists of a rotatably mounted grinding wheel 21 and a trimming stone 22. While the deburring stone 22 is fastened on the inside of the one side wall 23 of the hood 18, the grinding wheel 21 sits with its bearing block 24 on a special wall part 25 which closes an opening 26 in the ceiling 27 of the hood 18 in the case of assembly. The wall part 25 here consists of a cover 25 which can be moved via a handle 87 and which requires a special kind of steering movement for its assembly.

Zum Ablösen des Deckels 25 muß dieser zunächst im Sinne des in Fig. 2 eingezeichneten Bewegungspfeils 28 gedreht werden, um den oberen Umfangsbereich der Schleifscheibe 21 unter einer Schulter 29 wegzubewegen, die hier durch eine dem Umriß der Schleifscheibe 21 angepaßte Aussparung in dem erwähnten Umfangswulst 20 entstanden ist. Dadurch löst sich eine Rastverbindung 30 zwichen diesem Deckel 25 und dem Rand der Öffnung 26, die z. B. aus einer federbelasteten Kugel bestehen kann. Eine auf der gegenüberliegenden Seite befindliche Nase 31 an diesem Deckel 25 hintergreift den Randbereich der Öffnung 26 und wird am Ende der Drehbewegung 28 schließlich freigegeben. Jetzt ist es möglich, die von der Schulter 29 freigegebene Schleifscheibe 21 durch eine im westentlichen vertikal nach oben gerichtete Bewegung des Deckels 25 durch die Öffnung 26 der Haube ganz herauszuziehen. Die Montage der Schleifscheibe erfolgt natürlich durch eine Bewegungsfolge in umgekehrter Richtung.To detach the cover 25, it must first be rotated in the direction of the arrow 28 shown in FIG. 2 in order to move the upper circumferential region of the grinding wheel 21 away from under a shoulder 29, which here has a recess in the aforementioned circumferential bead 20 which is adapted to the contour of the grinding wheel 21 arose. This releases a snap connection 30 between this cover 25 and the edge of the opening 26, which, for. B. may consist of a spring-loaded ball. A nose 31 located on the opposite side on this cover 25 engages behind the edge region of the opening 26 and is finally released at the end of the rotary movement 28. It is now possible to completely pull out the grinding wheel 21 released by the shoulder 29 by a vertically upward movement of the cover 25 through the opening 26 of the hood. The grinding wheel is of course installed in a reverse sequence of movements.

In demontiertem Zustand des Deckels 25 können alle fest an ihm angebrachten Bauelemente, insbesondere der Schleifstaub im Bereich der Scheibe 21 außerhalb der Haube 18 entfernt werden. Die übrigen Innenbereiche 32 der Haube 18 können durch die freigelegte Öffnung 26 gereinigt werden, ohne daß die Haube 18 vorher abgenommen werden müßte. Der die Schneidkante 15 des Rundmessers 12 umgebende Wulst 20 schützt die Hand dabei vor Verletzungen.In the disassembled state of the cover 25, all components firmly attached to it, in particular the grinding dust in the region of the disk 21 outside the hood 18, can be removed. The remaining inner areas 32 of the hood 18 can be cleaned through the exposed opening 26 without the hood 18 having to be removed beforehand. The the Cutting edge 15 of the circular knife 12 surrounding bead 20 protects the hand from injury.

Die Haube 18 sitzt mit einer Büchse 33 auf einem Achsbolzen 34 und bestimmt die in Fig. 2 strichpunktiert angedeute Schwenkachse 35, um welche die Haube 18 in zwei alternative Schleiflagen verschwenkt werden kann. Die Haube 18 ist aber normalerweise in ihrer aus Fig.2 ersichtlichen Ruhelage durch ein Federglied 36 gehalten, dessen Ausbildung aus den Schnittansichten von Fig. und 4 zu erkennen ist.The hood 18 sits with a bush 33 on an axle bolt 34 and determines the pivot axis 35, indicated by dash-dotted lines in FIG. 2, about which the hood 18 can be pivoted in two alternative grinding positions. The hood 18 is normally held in its rest position shown in FIG. 2 by a spring member 36, the design of which can be seen from the sectional views of FIGS.

Zum Federglied 36 gehört eine im Haubeninneren 32 angeformte Aufnahme 37 für einen Stift 38, der von den Windungen einer Wendelfeder 39 umschlossen ist, deren eines Ende fest an der Aufnahme 37 und deren anderes Ende an einem Block 40 festsitzt, der eine Bohrung 41 zur Längsführung des Stiftendes 38 aufweist. Der Block 40 besitzt schließlich eine quer zu Bohrung 41 verlaufende Öffnung 43 zum Einstecken eines fest mit dem Maschinengestell 11 verbundenen Zapfens 42, der für eine Drehlagerung des Blockes 40 an dieser Stelle sorgt. Die Haube 18 wird mit dem Maschinengestell 11 dadurch montiert, daß einerseits die Büchse 33 und der Achsbolzen 34 und andererseits die Stecköffnung 43 und der Drehzapfen 42 miteinander gekuppelt werden.To the spring member 36 is a molded in the hood 32 receptacle 37 for a pin 38 which is enclosed by the turns of a helical spring 39, one end of which is firmly attached to the receptacle 37 and the other end of which is attached to a block 40 which has a bore 41 for longitudinal guidance of the end of the pin 38. The block 40 finally has an opening 43 extending transversely to the bore 41 for inserting a pin 42 which is fixedly connected to the machine frame 11 and which ensures that the block 40 is pivoted at this point. The hood 18 is mounted with the machine frame 11 in that on the one hand the sleeve 33 and the axle bolt 34 and on the other hand the plug opening 43 and the pivot 42 are coupled to one another.

Normalerweise ist eine Abnahme der Haube nicht erforderlich, um das Haubeninnere 32 zu säubern, wie bereits erwähnt wurde. Zur weiteren Sicherheit ist es aber möglich einen in Fig. 2 angedeuteten Überwachungsschalter 44 vorzusehen, der in einem Sicherungsstromkreis angeordnet ist und die Stromversorgung für den Antrieb des Rundmessers 12 unterbricht, wenn die Haube 18 abgenommen ist. Zu diesem Zweck kann in einer Längsbohrung des Achsbolzens 34 ein Steuerstift 45 längsverschieblich aufgenommen sein, der mit seinem einen Ende an einer zu justierzwecken an einem höheneinstellbaren Gewindestift 76 in der Büchse 33 abgestützt ist und mit seinem anderen Ende an einer federnden Zunge 47 anliegt, welche auf einen Tastbetätiger 48 des Schalters 44 einwirkt. Ist die Haube 18 abgenommen, so gibt die Zunge 47 den Tastbetätiger 48 frei, der dann einen Überwachungsschalter 44 in seine « Aus •-Stellung überführt. Der Sicherheitsstromkreis ist unterbrochen. Der Antrieb des Rundmessers 12 kann nicht eingeschaltet werden. Ist dagegen die Haube 18 aufgesetzt, so drückt das Gewicht über den Gewindestift 46 und den Steuerstift 45 auf die Zunge 47, welche den Tastbetätiger 48 in den Schalter 44 eindrückt und dadurch den -Sicherheitsstromkreis schließt. Jetzt kann der Antrieb des Rundmessers 12 eingeschaltet werden.Typically, removal of the hood is not required to clean the hood interior 32, as previously mentioned. For further security, it is however possible to provide a monitoring switch 44 indicated in FIG. 2, which is arranged in a safety circuit and interrupts the power supply for driving the circular knife 12 when the hood 18 is removed. For this purpose, a control pin 45 can be longitudinally displaceably received in a longitudinal bore of the axle pin 34, which is supported at one end on an adjusting screw 76 for adjustment purposes in a bush 33 and at the other end rests on a resilient tongue 47, which acts on a key actuator 48 of the switch 44. If the hood 18 is removed, the tongue 47 releases the pushbutton actuator 48, which then moves a monitoring switch 44 into its “off” position. The safety circuit is broken. The drive of the circular knife 12 cannot be switched on. If, on the other hand, the hood 18 is put on, the weight presses via the threaded pin 46 and the control pin 45 onto the tongue 47, which presses the button actuator 48 into the switch 44 and thereby closes the safety circuit. Now the drive of the circular knife 12 can be switched on.

Die Fig. 5 bis 11 zeigen ein anderes Ausführungsbeispiel einer erfindungsgemäßen Aufschnittschneidemaschine 10', wo, der besseren Übersicht wegen, soweit keine grundsätzlichen Abweichungen vorliegen, die gleichen Bezugszeichen wie im vorausgehenden Ausführungsbeispiel bei der Maschine 10 verwendet worden sind. Insoweit gilt die bisherige Beschreibung.5 to 11 show another exemplary embodiment of a slicing machine 10 'according to the invention, where, for the sake of a better overview, insofar as there are no fundamental deviations, the same reference numerals as in the previous exemplary embodiment have been used in the machine 10. In this respect, the previous description applies.

In Fig. 5 ist eine zentrale D-eckplatte 49, die in der Schnittdarstellung von Fig. 11 zu erkennen ist, entfernt worden, um einen Durchblick auf das Rundmesser 12 und dessen Umgebung zu bekommen. Aus gleichem Grunde ist hier eine Haube 51 entfernt worden. Entlang eines Kreissektors 52 liegt vor der Schneidkante 15 des Rundmessers 12 in einem Spaltabstand 53 eine Endkante 54 der bereits im ersten Ausführungsbeispiel erwähnten Dickenplatte 14. Bei solchen Aufschnittschneidemaschinen ist sichergestellt, daß der bereits erwähnte Schlitten zur Aufnahme des Schneidguts nur dann zu Reinigungszwecken von der Maschine 10' abnehmbar ist, wenn die Dickenplatte 14 auf der Einstellung « Null oder darunter sich befindet, also die Dickenplatte 14 in einer Ebene mit der Schneidkante 15 des Rundmessers 12 angeordnet ist. Daher ist die Messerscheibe bei Reinigungsarbeiten im Bereich dieses Kreissektors 52 abgedeckt. Bei der Erfindung ist nun der gesamte restliche Umfangsbereich 55 des Rundmessers 12 von einer Schutzleiste 50 umgeben, die in diesem Ausführungsbeispiel als eine profilierte Klinge, deren Querschnitt in Fig. 10 zu erkennen ist, ausgebildet ist, die in Form einer Sichel im engen Abstand um die Schneidkante 15 des Messers 12 herumläuft. Diese Schutzleiste 50 erstreckt sich somit auch in dem zur Aufnahme der Haube 51 dienenden oberen Randbereich 56 des Messers 12 gemäß Fig.5. Statt ein Klingenprofil kann die Leiste, wie die Leiste 50' im Radialschnitt von Fig. 11 zeigt, auch ein Winkelprofil aufweisen, das nicht nur die Schneidkante 15 umfangsmäßig überdeckt sondern sich über die gegebene axiale Stärke des Rundmesserprofils erstreckt. Der tiefgezogene Schenkel 57 des Winkelprofils verschließt in besonders guter Weise auch einen seitlichen Zugang zur scharfen Schneidkante 15.In FIG. 5, a central cover plate 49, which can be seen in the sectional view of FIG. 11, has been removed in order to obtain a view of the circular knife 12 and its surroundings. For the same reason, a hood 51 has been removed here. Along a circular sector 52 lies in front of the cutting edge 15 of the circular knife 12 in a gap distance 53 an end edge 54 of the thickness plate 14 already mentioned in the first exemplary embodiment. In such slicing machines it is ensured that the aforementioned carriage for receiving the material to be cut is only then removed from the machine for cleaning purposes 10 'is removable if the thickness plate 14 is at the setting “zero or below, that is to say the thickness plate 14 is arranged in one plane with the cutting edge 15 of the circular knife 12. The knife disk is therefore covered during cleaning work in the area of this circular sector 52. In the invention, the entire remaining circumferential region 55 of the circular knife 12 is now surrounded by a protective strip 50, which in this exemplary embodiment is designed as a profiled blade, the cross section of which can be seen in FIG. 10, which is in the form of a sickle at a close distance the cutting edge 15 of the knife 12 runs around. This protective strip 50 thus also extends in the upper edge area 56 of the knife 12 used to hold the hood 51, as shown in FIG. 5. Instead of a blade profile, the strip, as the strip 50 'shows in the radial section of FIG. 11, can also have an angle profile which not only covers the cutting edge 15 circumferentially but also extends over the given axial thickness of the circular knife profile. The deep-drawn leg 57 of the angle profile also closes lateral access to the sharp cutting edge 15 in a particularly good manner.

Die Schutzleiste 50 beziehungsweise 50' ist fest mit dem Maschinengestell 11 verbunden, was zum Beispiel durch die aus Fig. ersichtliche Lasche 58 zwischen dem Gestell und der Leiste 50 geschieht. Die Haube 51 trägt hier einen Bolzen 59 mit konischem Ende, der, wie Fig. 6 verdeutlicht, in einer am Maschinengestell 11 vorgesehen Büchse 60 einführbar ist und zu Richtzwecken eine Längsnut 61 aufweisen kann, die mit dem Schaftende einer in das Innere der Büchse 60 hereinragenden Schraube 61 oder dergleichen zusammenwirkt. Das Ende des Bolzens 59 ist mit einem verbreiterten Kopf 63 versehen, der eine mit der Längsnut 61 ausgerichteten Lücke 64 zur Durchführung des erwähnten Schaftendes der Schraube 62 aufweist. In jeder anderen Drehstellung schließt es bereits der Kopf 63 aus, den Bolzen 59 in die Büchse 60 einstecken zu können, weil die Stirnfläche des Kopfes 63 an das Schaftende der Schraube 62 stößt. Umgekehrt ist auch in jeder anderen Drehstellung der Haube 51 ein Vorbeiführen des Kopfes 63 am Schaftende der Schraube 62 nicht möglich, weil dieses Schaftende an die Innenschulter des Kopfes 63 stoßen wird. In vollem Einsteckzustand des Bolzens 59 gelangt das Schaftende der Schraube 62 schließlich in eine Erweiterung 65 am Oberende der Längsnut 61, wodurch eine begrenzte Verschwenkung der Haube 51 um die strichpunktiert in Fig.6 angedeutete Schwenkachse 35 in ähnlicher Weise möglich ist, wie im ersten Ausführungsbeispiel der Maschine 10 erkennbar. An dem der Schwenkachse 35 abgekehrten Ende der Haube 51 befindet sich ein Federglied, das im vorliegenden Fall aus einer zweischenkeligen Blattfeder 66 besteht, die im Montagezustand der Haube 51 ein Teilstück der Schutzleiste 50 zwischen ihren beiden Schenkeln 67 aufnimmt, wie aus der strichpunktiert in Fig. angedeuteten Position der Schutzleiste 50 zu entnehmen ist. Die Blattfeder 66 stützt sich also beidseitig der Schutzleiste 50 ab und bestimmt dadurch die neutrale Ruhelage der Haube 51, wo beide Elemente 21, 22 des Schleifzeugs gegenüber dem Rundmesser 12 unwirksam sind.The protective strip 50 or 50 'is firmly connected to the machine frame 11, which is done, for example, by the tab 58 shown in FIG. 1 between the frame and the strip 50. The hood 51 here carries a bolt 59 with a conical end, which, as shown in FIG. 6, can be inserted into a bushing 60 provided on the machine frame 11 and for directional purposes may have a longitudinal groove 61 which, with the shaft end, leads into the interior of the bushing 60 protruding screw 61 or the like cooperates. The end of the bolt 59 is provided with a widened head 63 which has a gap 64 aligned with the longitudinal groove 61 for the passage of the aforementioned shaft end of the screw 62. In any other rotational position, the head 63 already precludes the ability to insert the bolt 59 into the bush 60 because the end face of the head 63 abuts the shaft end of the screw 62. Conversely, in any other rotational position of the hood 51, it is not possible to move the head 63 past the shaft end of the screw 62 because this shaft end is against the inside shoulder of the head 63. In the fully inserted state of the bolt 59, the shaft end of the screw 62 finally comes into an extension 65 at the upper end of the longitudinal groove 61, as a result of which a limited pivoting of the hood 51 about the pivot axis 35 indicated by dash-dotted lines in FIG. 6 is possible in a similar manner to that in the first exemplary embodiment the machine 10 recognizable. At the end of the hood 51 facing away from the pivot axis 35 there is a spring member which, in the present case, consists of a two-legged leaf spring 66 which, when the hood 51 is in the installed state, receives a section of the protective strip 50 between its two legs 67, as shown by the dot-dash line in FIG indicated position of the protective strip 50 can be seen. The leaf spring 66 is thus supported on both sides of the protective strip 50 and thereby determines the neutral rest position of the hood 51, where both elements 21, 22 of the grinding tool are ineffective with respect to the circular knife 12.

Die wirksame Schleiflage des Schleifzeugs 21, 22 wird im Montagefall der kompletten Haube 51 beziehungsweise 18 in beiden Ausführungsbeispielen der Erfindung durch die gleiche Handbahung erreicht, weshalb dies für beide Maschinen 10, 10' an Hand der Fig. 1 zu verdeutlichen ist. Wird die Haube in Richtung des Pfeils 68 der Fig. 1 gedrückt, so kommt die Schleifscheibe 21 an der Kante 15 des Rundmessers 12 zur Anlage und schärft diese. Um dies auch beim zweiten Ausführungsbeispiel der Maschine 10' erreichen zu können, ist die dortige Schutzleiste 50 mit einer Aussparung 69 versehen, in die der Schleifstein 21 im Montagezustand mit seinem Umriß hineinpaßt. Zugänglich zu Schleifzwecken wäre die Schneidkante 15 des Messers, ohne die Schutzleiste 50 durch solche Aussparungen 69 querschnittsmäßig zu schwächen, wenn die Leiste im Bereich der Schleifscheibe 21 eine Verformung aufweisen würde. Die Bewegung 68 erfolgt gegen die Rückstellwirkung des Federgliedes 36 bei der Maschine 10, wodurch sich die Wendelfeder zwischen dem dortigen Block 40 und der Aufnahme 37 auf dem Stift 38 zusammendrückt. Im Fall der Maschine 10' wird lediglich der betreffende Schenkel 67 der Blattfeder 66 deformiert.The effective grinding position of the grinding tool 21, 22 is achieved in the case of assembly of the complete hood 51 or 18 in both exemplary embodiments of the invention by the same hand movement, which is why this can be illustrated for both machines 10, 10 'with reference to FIG. 1. If the hood is pressed in the direction of arrow 68 in FIG. 1, the grinding wheel 21 comes to rest on the edge 15 of the circular knife 12 and sharpens it. In order to be able to achieve this also in the second embodiment of the machine 10 ', the protective strip 50 there is provided with a recess 69 into which the grinding stone 21 fits with its outline in the installed state. The cutting edge 15 of the knife would be accessible for grinding purposes without weakening the protective strip 50 through such cutouts 69 if the strip were deformed in the area of the grinding wheel 21. The movement 68 takes place against the restoring action of the spring member 36 in the machine 10, as a result of which the helical spring compresses between the block 40 there and the receptacle 37 on the pin 38. In the case of the machine 10 ', only the relevant leg 67 of the leaf spring 66 is deformed.

Ist die Schleifarbeit beendet, so kann der Abgratstein 22 des Schleifzeugs wirksam gesetzt werden, wenn die Haube 18 beziehungsweise 51 im Sinne des in Fig. 1 angedeuteten entgegengerichteten Pfeils 70 verschwenkt wird. Jetzt kommt der Abgratstein 22 von der gegenüberliegenden Seite am Rundmesser 12 zur Anlage und entgratet die Schneidkante 15. In diesem Fall entfernt sich im Ausführungsfall der Maschine 10 das in der Aufnahme 37 steckende Ende des Stiftes 30 von dem bei 42 drehgelagerten Block 40, wodurch sich die Wendelfeder 36 längt und das Bestreben hat, sich wieder zusammenzuziehen. Im Ausführungsfall der Maschine 10' wird wiederum nur das eine Schenkelende 67 der Blattfeder 66 durch Abstützung an der Schutzleiste 50 deformiert. Läßt man die Haube 18 beziehungsweise 51 los, so geht diese wieder von selbst aufgrund der Federwirkung bei 36 beziehungsweise 66 in ihre Ausgangstellung der vorerwähnten Ruhelage zurück.Once the grinding work has been completed, the deburring stone 22 of the grinding tool can be put into effect when the hood 18 or 51 is pivoted in the direction of the opposite arrow 70 indicated in FIG. 1. Now the deburring stone 22 comes into contact with the circular knife 12 from the opposite side and deburrs the cutting edge 15. In this case, in the case of the machine 10, the end of the pin 30 in the receptacle 37 is removed from the block 40 rotatably mounted at 42, as a result of which the coil spring 36 is elongated and tends to contract again. In the embodiment of the machine 10 ', in turn only the one leg end 67 of the leaf spring 66 is deformed by being supported on the protective strip 50. If you let go of the hood 18 or 51, it will automatically return to its starting position of the aforementioned rest position due to the spring action at 36 or 66.

Bei der Maschine 10' ist ein Abnehmen der Haube 51 durch eine den Montagepfeil 71 von Fig.6 entgegengerichtete Bewegung nicht ohne weiteres möglich, weil, wie am besten aus Fig. 7 hervorgeht, die Schleifscheibe 21 die Schutzleiste 50 im Bereich der erwähnten Aussparung 69 hintergreift und daher dort anstößt. Diese Sperre kann nur durch Herausschieben der Schleifscheibe 21 aus dieser Aussparung 69 beseitigt werden, weshalb die Haube 21 hierzu einen besonderen Aufbau zeigt.In machine 10 ', removal of hood 51 by a movement counter to mounting arrow 71 in FIG. 6 is not readily possible because, as can best be seen in FIG. 7, grinding wheel 21 has protective strip 50 in the area of recess 69 mentioned reaches behind and therefore bumps there. This lock can only be removed by sliding the grinding wheel 21 out of this recess 69, which is why the hood 21 has a special structure for this purpose.

Abgesehen von einer Haubenverlängerung 72, die einen Kanal 73 für den Durchtritt des Rundmessers 12 gegen die Dickenplatte 14 zuläßt, hat die Haube 51 einen Rechteckumriß. Fest mit der eigentlichen Haube 51 sind aber außer der Deckwand 74 nur drei Seitenwände 75, 76, 77 verbunden, während die vierte Seitenwand, wie am besten aus Fig.9 hervorgeht, fehlt und stattdessen eine Öffnung 78 aufweist, in welche ein schubartiges Gebilde 80 eingeführt wird. Dieses besteht aus einer Gleitplatte 81, die in unterseitig der Deckwand 74 angebrachten Führungen 82 längsverschiebar aufgenommen wird, und aus einer rechtwinklig dazu verlaufenden Abschlußplatte 79, die bei vollem Einschieben dieses schubartigen Gebildes 80 die fehlende Seitenwand der Haube 51 bildet, wie aus Fig. 8 hervorgeht. An der zwischen den Führungen 82 sichtbarbleibenden Unterseite der Gleitplatte 81 ist der bereits früher erwähnte Lagerbock 24 zur Drehlagerung der Schleifscheibe 21 in einer bestimmten Neigungsposition befestigt. Nach stärkerem Abschliff der Schneidkante 15 des Rundmessers 12 kann durch Lösen einer Schraube 87, die an einer Büchse 88 der Welle 89 angreift, die Längslage der Schleifscheibe 21 nachjustiert werden. In voller Einschiebeposition des Schubs 80 übergreifen die Randbereiche der Abschlußplatte 79 die Umrisse der angrenzenden Seitenwände 75, 77 und der Deckwand 74 der Haube 51 und kommen anschlagartig an den zugehörigenden Kanten 83 zur Anlage, wie aus Fig. 7 und 8 zu entnehmen ist. Durch diese Anschlagwirkung bei 83 ist die Endlage des Schubs 80 und die Endposition der Schleifscheibe 21 fixiert. Die Einschieberichtung 86 des Schubs 80 und die erwähnte Druckausübung 68 zum Verschwenken der Haube 51 in ihre erwähnte Schleiflage haben, wie aus Fig. hervorgeht, die gleiche Richtung. Bei dieser Druckausübung 68 wird die Kraft von der Abschlußplatte 79 auf die anschlagartig daran anstoßenden Kanten 73 der Wände 74, 75, 77 übertragen.Apart from a hood extension 72, which allows a channel 73 for the passage of the circular knife 12 against the thickness plate 14, the hood 51 has a rectangular outline. However, apart from the top wall 74, only three side walls 75, 76, 77 are fixedly connected to the actual hood 51, while the fourth side wall, as best shown in FIG. 9, is missing and instead has an opening 78 into which a thrust-like structure 80 is introduced. This consists of a sliding plate 81, which is accommodated in a longitudinally displaceable manner in guides 82 mounted on the underside of the top wall 74, and of an end plate 79 running at right angles thereto, which forms the missing side wall of the hood 51 when this push-like structure 80 is fully inserted, as shown in FIG. 8 emerges. On the underside of the slide plate 81 which remains visible between the guides 82, the bearing block 24 mentioned above for the rotary mounting of the grinding wheel 21 is fastened in a specific inclination position. After sharpening the cutting edge 15 of the circular knife 12, the longitudinal position of the grinding wheel 21 can be readjusted by loosening a screw 87 which engages a bush 88 of the shaft 89. In the fully inserted position of the push 80, the edge areas of the end plate 79 overlap the contours of the adjacent side walls 75, 77 and the top wall 74 of the hood 51 and come to abut against the associated edges 83, as can be seen from FIGS. 7 and 8. This stop action at 83 fixes the end position of the thrust 80 and the end position of the grinding wheel 21. The insertion direction 86 of the push 80 and the mentioned pressure application 68 for pivoting the hood 51 into its mentioned grinding position have the same direction, as can be seen from FIG. When this pressure is exerted 68, the force is transmitted from the end plate 79 to the abutting edges 73 of the walls 74, 75, 77.

Um die Haube 51 ganz abnehmen zu können, muß der Schub 80 ganz oder teilweise herausgezogen werden, weil dann die Schleifscheibe 21 aus der Aussparung 69 der Schutzleiste 50 herausgelangt. Jetzt kann die Haube 51, entgegen der Richtung der in Fig. 6 gezeigten Montagepfeile 71 emporgehoben werden, bis die Schenkel 67 der Blattfeder 66 den von ihr umfaßten Teil der Schutzleiste 50 freigeben und der Bolzen 59 aus der Büchse 60 im Maschinengestell 11 herausgelangt ist. Sofern dies nicht schon geschehen sein sollte, kann der Schub 80 nun ganz aus der Haube 51 herausgezogen werden, wodurch der Innenraum besonders gut zu reinigen ist. Auch der obere Bereich 56 der Maschine 10', der sonst von der Haube 51 überdeckt ist, kann nun bequem gereinigt werden, wobei die Verletzungsgefahr an der Schneidkante 15 des Messers 12 durch die entlanggeführte Schutzleiste 50 beseitigt ist.In order to be able to remove the hood 51 completely, the thrust 80 must be pulled out in whole or in part, because then the grinding wheel 21 comes out of the recess 69 in the protective strip 50. Now the hood 51 can, against the direction of the assembly arrow shown in Fig. 6 le 71 are lifted until the legs 67 of the leaf spring 66 release the part of the protective strip 50 which it encompasses and the bolt 59 has come out of the bush 60 in the machine frame 11. If this should not already have happened, the thrust 80 can now be pulled out of the hood 51, making the interior particularly easy to clean. The upper area 56 of the machine 10 ', which is otherwise covered by the hood 51, can now be cleaned conveniently, the risk of injury on the cutting edge 15 of the knife 12 being eliminated by the protective strip 50 running along it.

Bei der durch die erwähnten Pfeile 71 angedeuteten Montage der Haube 51 ist in umgekehrter Reihenfolge zu verfahren. Um an der Schutzleiste 50 mit der Scheifscheibe 21 vorbeizukommen, ist der Schub 80 ganz oder teilweise hergezogen. Anstelle oder ergänzend zur erwähnten Führungswirkung durch die Lücke 64 und die Längsnut 61 im Bolzen 59 gegenüber dem ins Buchseninnere 60 weisenden Schaftende der Schraube 62, kann eine Führungswirkung auch noch durch eine Profilierung im Haubeninneren erfolgen, die gemäß Fig. 10 aus einer Innenrippe 84 und der Innenfläche 85 der Seitenwand 76 gebildet ist. Bei der Montage 71 wirkt nämlich die Schutzleiste 50 mit diesen Profilierungen 84, 85 zusammen und wird in den vorgesehenen Raumbereich geleitet. Als weitere Führungsmittel dienen natürlich auch die Enden der Schenkel 67 der Blattfeder 66, wenn diese über die Schutzleiste 50 im Sinne des linken Montagepfeils 71 von Fig. 6 geschoben werden.When the hood 51 is indicated by the arrows 71 mentioned, proceed in the reverse order. In order to get past the protective strip 50 with the washer 21, the thrust 80 is pulled in whole or in part. Instead of or in addition to the mentioned guide effect by the gap 64 and the longitudinal groove 61 in the bolt 59 with respect to the shaft end of the screw 62 pointing into the socket interior 60, a guide effect can also be achieved by profiling the inside of the hood, which according to FIG. 10 consists of an inner rib 84 and the inner surface 85 of the side wall 76 is formed. During assembly 71, protective strip 50 interacts with these profiles 84, 85 and is guided into the intended space. Of course, the ends of the legs 67 of the leaf spring 66 also serve as further guide means when these are pushed over the protective strip 50 in the sense of the left-hand mounting arrow 71 from FIG. 6.

Ist die Endlage der Haube 51 erreicht, so wird der Schub 80 ganz hinein geschoben und dadurch die daran sitzende Schleifscheibe 21 in die Aussparung 69 der Schutzleiste 50 eingeführt. Das Ausmaß der Schwenkbewegung der Haube 51 beim Überführen in die beidseitigen Schleiflagen im Sinne der im Zusammenhang mit Fig. 1 schon näher erläuterten Pfeile 68, 70 kann alternativ oder ergänzend zu der bereits oben erwähnten Erweiterung 65 der bolzenseitigen Längsnut 61 auch durch die vorgenannte Innenprofilierung 84, 85 der Haube 51 im Zusammenwirken mit der Schutzleiste 50 erfolgen. Bei dem Verschwenken stößt nämlich die Innenfläche 85 an die Schutzleiste 50 und begrenzt dadurch die Schwenkwinkel der Haube 51.When the end position of the hood 51 is reached, the thrust 80 is pushed all the way in and the grinding wheel 21 seated thereon is inserted into the recess 69 of the protective strip 50. The extent of the pivoting movement of the hood 51 when it is transferred into the two-sided grinding positions in the sense of the arrows 68, 70 already explained in more detail in connection with FIG. 1 can alternatively or in addition to the aforementioned extension 65 of the bolt-side longitudinal groove 61 also by means of the aforementioned internal profile 84 , 85 of the hood 51 in cooperation with the protective strip 50. When pivoting, namely, the inner surface 85 abuts the protective strip 50 and thereby limits the pivoting angle of the hood 51.

Zur besseren Sicherung der Einschublage empfielt es sich auch im Ausführungsbeispiel der Fig. 5 bis 10 Rasthaltungen zwischen dem Schub 80 und der Haube 51 vorzusehen. Diese bestehen im vorliegenden Fall aus einer in Fig. 6 angedeuteten federbelasteten Kugel, die in einer Bohrung der Gleitplatte 81 eingelassen ist und im Kupplungsfall mit einer entsprechenden Ausnehmung auf der Innenfläche der Deckwand 74 zusammenwirkt.To better secure the insertion position, it is also advisable in the exemplary embodiment of FIGS. 5 to 10 to provide latching positions between the drawer 80 and the hood 51. In the present case, these consist of a spring-loaded ball indicated in FIG. 6, which is embedded in a bore in the sliding plate 81 and, in the case of coupling, cooperates with a corresponding recess on the inner surface of the top wall 74.

Claims (13)

1. A slicing machine (10, 10') including a grinding tool (21, 22) for the rotating circular blade (12) the grinding tool having a pivotally supported grinding disc (21) and, if need be, a trimming stone (22) and being mounted in the inner space (32) of a protective hood (18 ; 51) which protectively encloses an edge portion (56) of the circular blade (12), the protective hood (18; 51) being connected with the frame (11) of the machine (10 ; 10') via a swivel axis (35) extending approximately parallelly to the plane of the circular blade (12) and adapted to be pivoted from a position of rest, in which the grinding tool (21, 22) is spaced free from the circular blade (12), into a grinding position, in which the grinding tool (21, 22) engages at the rotating circular blade (12) with a grinding effect, characterized in that the protective hood (18 ; 51) has a wall portion (25 ; 80) releasable from the hood, to which is secured at least the grinding disc (21) of the grinding tool, and that inside the protective hood (18 ; 51) the cutting edge (15) of the circular blade (12) is surrounded by a circumferential bead (20 ; 50 ; 50') at least alongside its edge portion (56) provided there.
2. A slicing machine as claimed in the claim 1, characterized in that the cirumferential bead (20) is an integral part of the protective hood (18), (Fig. 2).
3. A slicing machine as claimed in the claim 1, characterized in that the circumferential bead (20) is designed as a protective strip (50 ; 50') separate from the hood (51) which is secured to the machine frame (11) and also remains located in its covering position relative to the cutting edge (15) of the circular blade (12), when the hood (51) is removed (Fig. 5-11).
4. A slicing machine as claimed in the claim 3, characterized in that the protective strip (50 ; 50') is arranged alongside the whole remaining circumferential area (55) of the circular blade (12) which is located outside the thickness plate (14) defining the thickness of the slices.
5. A slicing machine as claimed in the claim 3 or 4, characterized in that the protective strip (50 ; 50') is provided as its inner rim facing the cutting edge (15) of the circular blade (12) with a recess (69) which grips behind the grinding disc (21) with its upper peripheral portion, when the wall portion (80) carrying the grinding tool is mounted to the protective hood (51).
6. A slicing machine as claimed in any one or several of the claims 3 to 5, characterized in that a spring element such as a two-legged (67) leaf spring (66) defining the position of rest of the protective hood (51) abuts against the protective strip (50 ; 50').
7. A slicing machine as claimed in any one or several of the claims 3 to 6, characterized in that the inner space of the hood (51) has lateral guide surfaces (84 ; 85) arranged therein which, during assembling (71) of the hood (51) on the machine frame (11), cooperate in an aligning sense with the contour of the protective strip (50 ; 50') (Fig. 10).
8. A slicing machine as claimed in the claim 7, characterized in that the guide surface (84, 85), with hood (51) assembled, together with the protective strip (50 ; 50') provides stops for limitation of the pivotal movement (68 ; 70) of the hood (51).
9. A slicing machine as claimed in any one or several of the claims 1 to 8, characterized in that the wall portion (25) carrying the grinding disc (21) can be coupled into an opening (26) specifically provided in the upper wall (27) of the hood (18) via a coupling connection.
10. A slicing machine as claimed in any one or several of the claims 1 to 8, characterized in that the wall portion (80) carrying the grinding disc (21) closes (79) an opening (78) specifically provided in the side wall of the hood (51) via a sliding connection (80, 82).
11. A slicing machine as claimed in the claim 10, characterized in that the opening (78) is produced by omitting a whole side wall and the wall portion carrying the grinding disc is formed as a slide (80), consisting of a stop plate (79) forming the side wall of the hood when assembled, and of an angled-off slide plate (81) projecting into the hood interior, which is received in guides (82) on the upper wall (74) of the hood (51) for longitudinally sliding movement (86).
12. A slicing machine as claimed in the claim 11, characterized in that the stop plate (79) covers the edges (83) of the adjacent hood walls (74, 75, 76, 77) like a stop and absorbs the pressure of the hand (68) to pivot the hood (51) into its grinding position.
13. A slicing machine as claimed in any one or several of the claims 10 to 12, characterized in that the direction of longitudinal movement (86) of the slide (80) corresponds to the direction (68) of pivoting the hood (51) into its grinding position.
EP82102659A 1982-03-30 1982-03-30 Slicing machine with a sharpening device for the circular knive Expired EP0090064B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8282102659T DE3271328D1 (en) 1982-03-30 1982-03-30 Slicing machine with a sharpening device for the circular knive
EP82102659A EP0090064B1 (en) 1982-03-30 1982-03-30 Slicing machine with a sharpening device for the circular knive
AT82102659T ATE19987T1 (en) 1982-03-30 1982-03-30 SLICING MACHINE WITH A GRINDING TOOL FOR THE ROTARY ROTARY KNIFE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82102659A EP0090064B1 (en) 1982-03-30 1982-03-30 Slicing machine with a sharpening device for the circular knive

Publications (2)

Publication Number Publication Date
EP0090064A1 EP0090064A1 (en) 1983-10-05
EP0090064B1 true EP0090064B1 (en) 1986-05-28

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EP82102659A Expired EP0090064B1 (en) 1982-03-30 1982-03-30 Slicing machine with a sharpening device for the circular knive

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AT (1) ATE19987T1 (en)
DE (1) DE3271328D1 (en)

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Publication number Priority date Publication date Assignee Title
US5101704A (en) * 1991-02-15 1992-04-07 Premark Feg Corporation Slicer knife guard and sharpener
CN104139421A (en) * 2014-07-19 2014-11-12 苏州创维晟自动化科技有限公司 Movable safe blocking device of slitter machine

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Publication number Priority date Publication date Assignee Title
US2030197A (en) * 1934-01-15 1936-02-11 American Slicing Machine Co Slicing machine
GB532298A (en) * 1939-08-25 1941-01-21 Berkel Patent Nv Improvements relating to slicing machines
US3958478A (en) * 1974-09-03 1976-05-25 Hobart Corporation Sharpener for commodity slicing machine

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EP0090064A1 (en) 1983-10-05
DE3271328D1 (en) 1986-07-03
ATE19987T1 (en) 1986-06-15

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