DE687783C - Grinding device for revolving sickle knives in strand cigarette machines - Google Patents
Grinding device for revolving sickle knives in strand cigarette machinesInfo
- Publication number
- DE687783C DE687783C DE1938R0103265 DER0103265D DE687783C DE 687783 C DE687783 C DE 687783C DE 1938R0103265 DE1938R0103265 DE 1938R0103265 DE R0103265 D DER0103265 D DE R0103265D DE 687783 C DE687783 C DE 687783C
- Authority
- DE
- Germany
- Prior art keywords
- revolving
- grinding device
- grinding
- cigarette machines
- sickle knives
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
- B24B3/40—Processes or apparatus specially adapted for sharpening curved edges
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
Es ist bekannt, die Schleifapparate mit umlaufendem Sichelmesser bei Strangzigarettenmaschinen mit einer Schleifvorrichtung zu versehen, deren Schleifwerkzeug in bestimtntem Takte an die Messerschneide heran und von ihr fort bewegt wird.It is known that the grinding machines with rotating sickle knives in rope cigarette machines to be provided with a grinding device whose grinding tool approaches the knife edge in certain cycles and is moved away from it.
Bei bekannten Vorrichtungen dieser Art sitzt das Schleifwerkzeug auf einem Träger, der auf zwei Kurbelzapfen ruht. Um bei einer solchen Vorrichtung den Weg des Schleifzeugs ändern und dadurch verschiedenen Formen der Messerschneide anpassen zu können, sind gemäß der Erfindung die beiden Kurbeln in ihrer Winkellage zuein-1S ander einstellbar angeordnet. Gleichzeitig ist zwischen dem einen Kurbelzapfen und dem Schleifzeugträger ein Lenker eingeschaltet. In known devices of this type, the grinding tool sits on a carrier which rests on two crank pins. In order to be able to change the path of the grinding tool in such a device and thereby adapt different shapes of the knife edge, according to the invention the two cranks are arranged so as to be adjustable in their angular position relative to one another. At the same time, a handlebar is connected between the one crank pin and the grinding tool carrier.
Es sind allerdings Schleifvorrichtungen bekannt, bei denen sich die Bewegung des Schleifwerkzeugs an die Form der Messerschneide anpassen läßt. Diese Vorrichtungen sind jedoch mit einem hin und her gehenden Messerträger ausgerüstet und können daher infolge der auftretenden Massenkräfte nur mit verhältnismäßig geringer Betriebsgeschwindigkeit laufen.However, there are known grinding devices in which the movement of the Can adapt the grinding tool to the shape of the knife edge. These devices are however equipped with a reciprocating knife carrier and can therefore due to the inertia forces that occur, only at a relatively low operating speed to run.
Bekannt ist es auch, bei einer Schleifvorrichtung, deren Schleifscheibe auf einer winkelig abgebogenen Verlängerung der Umläufachse sitzt, den Winkel einzustellen, um die Schleifvorrichtung der Form der Messerschneide anzupassen.It is also known, in the case of a grinding device, the grinding wheel of which is angled on a bent extension of the axis of rotation sits, the angle to adjust the grinding device to the shape of the knife edge adapt.
Die Erfindung ist auf der Zeichnung an einem Ausführungsbeispiel erläutert.The invention is explained in the drawing using an exemplary embodiment.
In Fig. ι ist die bisher bekannte Schleifvorrichtung von der Seite gesehen dargestellt. Das Lager 1 trägt den umlaufenden Messerhalter 2, in welchem das Sichelmesser 3 eingespannt ist. Beim Schleifen der Schneide wird das Messer 3 an einem Schleifstein 4 vorbeigeführt, der in dem Lagerböckchen 5. läuft. Die Zahnräder 6, 7 und 8, von denen die Räder 6 und 7 als Kurbeln ausgebildet sind, geben dem Träger^, 10 des Schleif-Werkzeugs eine kreisende Bewegung. An dem Träger sitzt, mit ihm verbunden durch den verstellbaren Haltern, das Schleif stein-Iager5 (Fig·2)·In Fig. Ι the previously known grinding device is shown seen from the side. The bearing 1 carries the rotating knife holder 2 in which the sickle knife 3 is clamped. When the cutting edge is sharpened, the knife 3 is guided past a grindstone 4 which runs in the bearing block 5. The gears 6, 7 and 8, of which the wheels 6 and 7 are designed as cranks, give the carrier ^, 10 of the grinding tool a circular motion. The grinding stone bearing5 sits on the carrier, connected to it by the adjustable holders (Fig. 2 ).
Fig. 3 zeigt die in Fig. 1 angegebene Vorrichtung mit folgender Änderung: Zwischen dem Träger 9, 10 und der Kurbel 7 ist ein Lenker 12 eingeschaltet. Dadurch wird erreicht, daß die Kurbel 7 gegenüber der Kurbel 6 eine mehr oder weniger große Vor- oder Nacheilung erhalten kann, so daß der Winkel α verändert werden kann.FIG. 3 shows the device indicated in FIG. 1 with the following change: Between the carrier 9, 10 and the crank 7 is a Handlebar 12 switched on. This ensures that the crank 7 opposite the crank 6 can get a more or less large lead or lag, so that the angle α can be changed.
Um jede beliebige Winkelstellung des Hebels 12 zu ermöglichen, ist der Zahnkranz des Rades 7 auf eine zentrische Nabe 13 (Fig. 4) aufgesetzt. Durch die Veränderung des Winkels α am Zahnrad 7 wird die Form der von dem Schleifwerkzeug beschriebenen Kurve beeinflußt. x In order to enable any angular position of the lever 12, the ring gear of the wheel 7 is placed on a central hub 13 (FIG. 4). By changing the angle α on the gear wheel 7, the shape of the curve described by the grinding tool is influenced. x
In Fig, S ist die von dem Schleifwerkzeug beschriebene Kurve bei einer bestimmten Einstellung der beiden Kurbeln 6 und 7 zueinander dargestellt.In FIG. 5, the curve described by the grinding tool is at a certain one Adjustment of the two cranks 6 and 7 to each other is shown.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1938R0103265 DE687783C (en) | 1938-09-06 | 1938-09-06 | Grinding device for revolving sickle knives in strand cigarette machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1938R0103265 DE687783C (en) | 1938-09-06 | 1938-09-06 | Grinding device for revolving sickle knives in strand cigarette machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE687783C true DE687783C (en) | 1940-02-06 |
Family
ID=7420845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1938R0103265 Expired DE687783C (en) | 1938-09-06 | 1938-09-06 | Grinding device for revolving sickle knives in strand cigarette machines |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE687783C (en) |
-
1938
- 1938-09-06 DE DE1938R0103265 patent/DE687783C/en not_active Expired
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