DE109076C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

PATENT LETTERING

CLASS 79: Tobacco.

of cigar toppers.

Patented in the German Empire on November 30, 1897.

The present invention relates to an automatic movement of the pressure roller carrier on machines for cutting cover sheets for cigars and the like. the German patent 51021 is used. With the machines made known through the patent specifications mentioned, it was necessary for the worker to move the pressure arm with its rollers by hand over a cutting die on which the tobacco leaf lay in order to cut the cover sheets, which not only made it very tired but also very irregular Pressure on the tobacco leaf, exerted, which resulted in a completely irregular wear of the cutting edges. A further disadvantage of the known machines consists in the fact that the worker could only grasp the insert tobacco and prepare it for wrapping the cigar after the cutting of the cover sheet was complete, since his hand was only free after the cutting. The present device has the purpose of avoiding these inconveniences, which is achieved by the fact that the pressure arm α is automatically actuated at the right time after the machine has been engaged by a kick and is also automatically fixed after a cover sheet has been cut out, so that for the worker no danger at all arises from the automatic movement. Furthermore, the worker can prepare the cigar insert for wrapping while cutting out the cover sheet, so he saves time and is less easily tired due to the reduced effort on the arms. Of course, the constant pressure of the rollers of the arm on the cutting edges of the die prevents irregular wear of the same.

In the accompanying drawing, Fig. 1 is a Top view of the machine, FIG. 2 is a side view of the same, and FIG. 3 is an enlarged view Partial representation of the drive mechanism connected to the main shaft (Fig. 1 above) for driving and locking the pressure roller arm.

According to the invention, the pressure arm a equipped with the pressure rollers b is attached to a pin (FIG. 2) which is mounted vertically in the machine frame and is provided with a gear sector k . The teeth of the latter are in engagement with those of a rack i sliding horizontally in the machine frame, so that the movement of the rack i causes the rollers b of the arm α to vibrate via the cutting die c . In every end position of its trajectory, the arm α is held in place by making it impossible for the rack i to move.

The machine parts are driven by a gear unit, one of which

Claims (1)

Gear wheel e sits loosely on shaft d (Fig. I). This gear wheel e is coupled by a clutch f, which is to be actuated with the foot (for example by the foot step g, FIG. 2), only for the duration of a full revolution of the shaft d . The shaft d carries a single gear wheel r and a toothed segment disk h, the teeth of which are intended to intervene in the drive ρ of the crankshaft 0 mounted parallel to the shaft d (FIGS. 1 and 3). On the latter sits besides the i with the rack m by the rod connected to the crank arm η a locking piece q, can be seen the shape of FIG. 3 and is arranged so, that it is with its concave end surfaces on the circular portion of the wheel can slide r, whereby but during this sliding movement, even with the rotation of the shaft d, rotation of the shaft 0 is made impossible. The end faces of the locking piece q are arranged in such a way that the shaft 0 is always locked when the crank η has reached its dead center position, i.e. when the rack i has carried out its full stroke movement in one direction. Since a full turn of the shaft d is now necessary to operate other machine parts, and the shaft ο may only perform half a turn in a certain period of time of this turn, the latter is caused by the fact that one tooth s (Fig. 2) of the disk r hits the locking piece q . In front of this tooth s there is a recess in the disk r and consequently the rotation of the ¹ locking piece q and the shaft 0 can now begin. As the shaft d and the disks hr continue to rotate , the teeth of the first disk come into engagement with the teeth of the pinion p, causing half a rotation of the shaft 0 . Behind the tooth s there is a longer recess in the disk r so that the locking piece q does not cause any locking during the meshing of the teeth of the disk h and the pinion ρ, one of the concave faces of the locking piece ' q slides again on the circular part of the disc r. Patent claim: .- ■■■ · ■ Drive device for the pressure roller carrier of machines for cutting the cigar top sheet, characterized in that the shaft (0) driving the pressure roller carrier with the aid of crank and rack and pinion gears starts from a periodically rotating countershaft (d) through a toothed disk fr) and a in the dead center positions of the crank gear on the single toothed disk fr) sliding locking piece (q) is set in motion and is further rotated by a toothed segment disk (h) on the countershaft fd) by half a turn, while by sliding the locking piece fq) on the single toothed disk fr) a blocking of the; Pressure rollers carrier takes place in its limit positions. 1 sheet of drawings.