DE454270C - Braking device for spools or drums, especially for paper rolls in printing machines - Google Patents
Braking device for spools or drums, especially for paper rolls in printing machinesInfo
- Publication number
- DE454270C DE454270C DEG67602D DEG0067602D DE454270C DE 454270 C DE454270 C DE 454270C DE G67602 D DEG67602 D DE G67602D DE G0067602 D DEG0067602 D DE G0067602D DE 454270 C DE454270 C DE 454270C
- Authority
- DE
- Germany
- Prior art keywords
- hollow shaft
- braking device
- shaft
- spools
- drums
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
- B65H23/06—Registering, tensioning, smoothing or guiding webs longitudinally by retarding devices, e.g. acting on web-roll spindle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/70—Clutches; Couplings
- B65H2403/72—Clutches, brakes, e.g. one-way clutch +F204
- B65H2403/723—Wrap spring clutches
Landscapes
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
Description
Bremsvorrichtung für Spulen oder Trommeln, insbesondere für Papierrollen bei Druckmaschinen. Bei einer großen Anzahl von Maschinen werden Trommeln oder Spulen ver-,vendet, auf die eine Bahn aufgeNvickelt ist, die durch die Maschine verarbeitet wird, z. B. die Papierrollen bei Druckmaschinen. Die die Papierbahn tragende Rolle muß ständig gebremst werden; dabei ist es häufig erforderlich, die Bremswirkung nach Maßgabe der Verarbeitung bzw. der Abwicklung der Bahn herabzusetzen.Braking device for spools or drums, in particular for paper rolls in printing machines. In a large number of machines, drums or spools are used used, on which a web is wound that is processed by the machine will, e.g. B. the paper rolls in printing machines. The role that carries the paper web has to be braked constantly; it is often necessary to reduce the braking effect to be reduced in accordance with the processing or handling of the railway.
Die Erfindung betrifft eine Bremsvorrichtung, die um so kräftiger auf die die Spule oder die Trommel tragende Welle wirkt, je größer das Gewicht der darauf aufgewickelten Bahn ist.The invention relates to a braking device that is all the more powerful acts on the shaft carrying the bobbin or drum, the greater the weight of the is wound on it.
Auf der Zeichnung ist eine Ausführungsform der Erfindung dargestellt.An embodiment of the invention is shown in the drawing.
Die Spule oder Trommel i sitzt auf einer hohlen Welle 2 und ist mit dieser z. B. mittels eines Keiles 3, einer Feststellschraube o. dgl. fest verbunden. Die Welle :2 hat an einem oder an beiden Enden eine Ausdrehung 4, die beispielsweise, wie auf der Abbildung dargestellt ist, trichterförmig ausgebildet ist. Durch die Hohlwelle 2 läuft eine feststehende Achse 5, die die Hohlwelle 2 nicht berührt. Auf diese Welle 5 ist ein Bremskörper 6 aufgesetzt, der der Ausdrehung q. genau angepaßt ist. Wenn auf beiden Enden der Hohlwelle 2 ein solcher Bremskörper 6 angebracht ist, so tragen die zwei Bremskörper 6 die Hohlwelle 2 nebst der auf ihr befestigten Trominel. 'Wenn nur auf einem Ende der Hohlwelle 2 ein solcher Bremskörper 6 angebracht ist, so wird nur das eine Ende der Hohlwelle :2 von dem Bremskörper 6 getragen; das andere Ende der Hohlwelle 2 wird dann von einem anderen Lager getragen.The spool or drum i sits on a hollow shaft 2 and is with this z. B. firmly connected by means of a wedge 3, a locking screw or the like. The shaft: 2 has a recess 4 at one or both ends which, for example, as shown in the figure, is funnel-shaped. Through the Hollow shaft 2 runs a stationary axle 5 which does not touch hollow shaft 2. On this shaft 5, a brake body 6 is placed, which the recess q. precisely is adapted. If such a brake body 6 is attached to both ends of the hollow shaft 2 is, the two brake bodies 6 carry the hollow shaft 2 together with the one fastened on it Trominel. 'If such a brake body 6 is only attached to one end of the hollow shaft 2 is, only one end of the hollow shaft: 2 is carried by the brake body 6; the other end of the hollow shaft 2 is then carried by another bearing.
Der Bremskörper 6 ist auf der Welle 5 in der Längsrichtung verstellbar, aber gegen Drehung durch Nut und Feder, eine Wellenabflachung o. dgl. gesichert. Eine Schraube 7 gestattet, den Anfangsdruck des Bremskörpers 6 ,auf die umlaufende Bremsfläche q. einzustellen und damit die Bremswirkung zu Beginn der Arbeit zu regeln.The brake body 6 is adjustable on the shaft 5 in the longitudinal direction, but secured against rotation by tongue and groove, a shaft flat or the like. A screw 7 allows the initial pressure of the brake body 6 on the circumferential Braking surface q. to adjust the braking effect at the beginning of the work.
Es ist ohne weiteres klar, daß bei einer Drehung der Spule oder Trommel i die Welle 2 mitgenommen wird und sich am feststehenden Bremskörper 6 reibt. Die Reibung ist um so größer, je größer das Gewicht der Welle 2 und der Spule oder Trommel i ist. Somit ist die Bremsung zu Beginn der Arbeit, d. h. wenn die Spule oder Trommel durch das noch unverarbeitete Gesamtmaterial belastet ist, größer als am Schluß der Verarbeitung, wo die Spule oder Trommel beinahe leer ist.It is readily apparent that upon rotation of the spool or drum i the shaft 2 is carried along and rubs against the stationary brake body 6. the The greater the weight of the shaft 2 and the spool or drum, the greater the friction i is. Thus, the braking at the beginning of the work, i. H. if the bobbin or drum is burdened by the as yet unprocessed total material, greater than at the end processing where the bobbin or drum is almost empty.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG67602D DE454270C (en) | Braking device for spools or drums, especially for paper rolls in printing machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG67602D DE454270C (en) | Braking device for spools or drums, especially for paper rolls in printing machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE454270C true DE454270C (en) | 1928-01-04 |
Family
ID=7134228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEG67602D Expired DE454270C (en) | Braking device for spools or drums, especially for paper rolls in printing machines |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE454270C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996026144A1 (en) * | 1995-02-24 | 1996-08-29 | Minnesota Mining And Manufacturing Company | Roll support hub braking mechanism |
US5564645A (en) * | 1995-02-24 | 1996-10-15 | Minnesota Mining And Manufacturing Company | Roll support hub braking mechanism |
-
0
- DE DEG67602D patent/DE454270C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996026144A1 (en) * | 1995-02-24 | 1996-08-29 | Minnesota Mining And Manufacturing Company | Roll support hub braking mechanism |
US5564645A (en) * | 1995-02-24 | 1996-10-15 | Minnesota Mining And Manufacturing Company | Roll support hub braking mechanism |
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