DE673306C - Device for regrinding double-edged safety razor blades - Google Patents

Description

K 145931

The present invention relates to a grinding and honing device for aftertreatment of safety razor blades.

Of the known devices with two grindings touching the edge of a blade on both sides ribbons, the subject of the invention differs in that the Blade between the sanding belts, is moved back and forth.

An exemplary embodiment show:

Fig. Ι in longitudinal section,

Fig. 2 in plan view,

Fig. 3 in side view,

Fig. 4 a section AB of Fig. 2.

The razor blade 2 clamped in a two-part carriage 1 (Fig. 1) is between two grinding surfaces 3. in the back and forth of the likewise two-part carriage 4 (Fig. 3) once on one? .O cutting edge and then on the other cutting edge hollow ground on both sides at the same time. This is achieved by having two at a time Pressure rollers 5 alternately the friction surfaces convexly curved on both sides of a blade edge press against the blade cutting surfaces.

The one end firmly attached to the lid of a container with a screw 6 'Friction surface 3, which through the upper carriage, then around a pin 7, then through the lower carriage 4 to an adjustable clamping screw 8 is performed, is coated with grinding paste. By the pressure of the soft grinding surface 3 on the one stored in the carriage 1 Guide pin 9 is held back at the beginning of the back and forth movement of the carriage until the in the carriage 4 against a spring 10 mounted pressure rollers the grinding surfaces 3 on both sides of the blade cutting surfaces have brought a cutting edge in the manner described, whereupon the carriage 1 is taken and the The grinding process begins. In order to enable the carriage 1 to remain behind the same on pin 11 in slots 12 movable.

In one part of the slide there are two pins corresponding to the two outer perforations the common razor blades and in the mutual slide part are corresponding Recesses provided. The razor blade 2

673806

is placed with the two outer holes over these two pins and the Container then closed in such a way that the two carriage parts come one on top of the other. The two protruding ends of the car are then interconnected by any device. In appropriate Way, the razor blade will come back after the device has been sharpened taken.

Claims (1)

Claim: . Device for regrinding double-edged safety razor blades, in which a "relative movement between a cutting edge and the other surfaces adjacent grinding belts perpendicular to the cutting edge, characterized in that that the band-shaped grinding surface attached to one end (6) through the carriage (4) of a slide (1) over a bolt (7) and back again the carriage (4) to 'a clamping device (8) runs and the blade (2) in the Carriage (4) is moved back and forth in the longitudinal direction of the friction surfaces (3), two pressure rollers (5) forming the friction surfaces before the start of each operation (3) "Bring exactly over the cutting surfaces on both sides, the opposite ones two pressure rollers (5) and thus the grinding surfaces (3) from the other Blade edge are detached in such a way that the pressure of the grinding surfaces (3) is stored in the carriage (1) Guide rollers (9) at the beginning of each operation of the carriage (1) like this is held back for a long time until the pressure rollers (5) alternate with the grinding surfaces (3) have brought up to the blade edge, whereupon the guide pins (11) of the carriage (1) at the end the guide slots (12) in the carriage (4) and thus the carriage (1) is taken with the blade (2) from the carriage (4), the blade cutting alternately under the Pressure rollers are located. 1 sheet of drawings