DE190332C - - Google Patents
Info
- Publication number
- DE190332C DE190332C DENDAT190332D DE190332DA DE190332C DE 190332 C DE190332 C DE 190332C DE NDAT190332 D DENDAT190332 D DE NDAT190332D DE 190332D A DE190332D A DE 190332DA DE 190332 C DE190332 C DE 190332C
- Authority
- DE
- Germany
- Prior art keywords
- cardboard
- knives
- circular knives
- triangular
- circular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
- B26D3/06—Grooving involving removal of material from the surface of the work
- B26D3/065—On sheet material
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
Description
Vorrichtungen zum Schneiden von Nuten in Pappe zwecks Biegens derselben in'scharfem Winkel, die in der Hauptsache aus zwei Kreismesser!! bestehen, deren geneigt zueinanderliegcndc .Achsen in einer für beide gemeinsamen Ebene liegen, sind bekannt.Devices for cutting grooves in cardboard for the purpose of bending the same in'scharfem Angle, which mainly consists of two circular knives !! exist whose inclined to each other liegcndc .Axes are in a common plane for both are known.
Mit keiner dieser Vorrichtungen lassen sich Nuten von scharf begrenzter Dreiecksform (Fig. i) herstellen, die in den überaus meistenWith none of these devices can grooves of a sharply delimited triangular shape (Fig. I) produce which in the vast majority of
ίο Fällen für das Biegen der Pappe die geeignetste ist, weil die Kreismesser für das Herausschneiden eines dreieckigen Streifens aus der Pappe so eingestellt sein müßten, daß sich ihre Schneiden an einer Stelle berühren, wodurch die Messer sich gegenseitig stumpf machen und dann nicht mehr glatt schneiden.ίο cases for bending the cardboard is the most suitable because the circular knife for that Cutting out a triangular strip from the cardboard should be set in such a way that that their cutting edges touch one another at one point, whereby the knives are mutually exclusive Make blunt and then no longer cut smooth.
Man hat daher seine Zuflucht zu einer Annäherungsform des . dreieckigen Nutenquer-Schnitts nehmen müssen, die sich als ein Trapez darstellt, bei welchem die eine der; parallelen Seiten sehr kurz ist (Fig. 2). Diese Seite stellt den Grund der Nut und die beiden nichtparallelen Seiten die Seitenflächen derselben dar. Letztgenannte werden durch die Kreismesser erzeugt. Das Lostrennen des Nutstreifens von der Papptafel an der zwischen dem Grunde der erwähnten beiden Schnitte liegenden dritten Seite ist durch eine weitere Arbeitsleistung zu bewirken, die gleichzeitig oder auch nach der Herstellung der Schnitte vollbracht wird.One therefore has recourse to an approximation of the. triangular groove cross-section must take, which presents itself as a trapezoid, in which one of the; parallel sides is very short (Fig. 2). These Side represents the base of the groove and the two non-parallel sides the side surfaces the same. The latter are produced by the circular knives. The runaway of the groove strip from the cardboard to the between the bottom of the two mentioned Cuts lying third side is to be effected by a further work performance is done at the same time or after the cuts have been made.
Mit den neuen, ebenfalls aus zwei geneigt zucinanderstehenden Kreismessern bestehenden Vorrichtung sollen Nuten dreieckigen Quer-Schnitts in Pappe lediglich mittels der Kreismesser, ohne irgendwelche Nach- oder Nebenarbeit erzeugt werden, ohne daß die Messer sich gegenseitig berühren.With the new, also consisting of two inclined circular knives Device should grooves triangular cross-cut in cardboard only by means of the circular knife, without any rework or ancillary work can be generated without the knives touching each other.
Die neue Vorrichtung ist in Fig. 3 in einer Seitenansicht, in Fig. 4 in der Vorderansicht und in Fig. 5 in der Unteransicht in einer Ausführungsform dargestellt.The new device is shown in Fig. 3 in a side view, in Fig. 4 in the front view and shown in FIG. 5 in a bottom view in one embodiment.
Die Achsen der beiden Kreismesser α und b ■ ■-. sind zueinander versetzt, d.'h. so angebracht, daß jede Achse in einer von zwei zueinander parallelen, einigen Abstand voneinander habenden, senkrechten Ebenen liegt und die Stellung der beiden Kreismesser α und b zueinander eine derartige ist, daß die von den Messern in der Pappe erzeugten Schnitte sich gegenseitig scharf begrenzen.The axes of the two circular knives α and b ■ ■ -. are offset from one another, i.e. attached so that each axis lies in one of two parallel, some distance from each other, vertical planes and the position of the two circular knives α and b is such that the cuts made by the knives in the cardboard are mutually sharp.
' Auf diese Weise wird eine scharf begrenzte Dreiecksnut erzeugt. Der herausgeschnittene Span kann ohne weiteres entfernt werden.'In this way it becomes a sharply demarcated one Triangular groove generated. The cut out chip can be easily removed.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE190332C true DE190332C (en) |
Family
ID=453796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT190332D Active DE190332C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE190332C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011107582A1 (en) * | 2011-07-16 | 2013-01-17 | Kolbus Gmbh & Co. Kg | Device for manufacturing of one-piece boards for, e.g. book cover, has supply unit with stationary groove unit with transversely adjustable cutting blades for lifting of chip from slide valves on groove unit over pushed cardboards |
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0
- DE DENDAT190332D patent/DE190332C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011107582A1 (en) * | 2011-07-16 | 2013-01-17 | Kolbus Gmbh & Co. Kg | Device for manufacturing of one-piece boards for, e.g. book cover, has supply unit with stationary groove unit with transversely adjustable cutting blades for lifting of chip from slide valves on groove unit over pushed cardboards |
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