DE278744C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The invention relates to a device by which the binder or knotter of the straw press automatically switched on after a predetermined amount of baling straw has accumulated in the baling channel to stand still after tying up the amount of straw with twine. The present invention uses a Gear train with incomplete toothing, as it is not used to drive the truss,

ίο but elsewhere to produce temporarily intermittent movement is known. In the present case, it is incomplete toothed, driven wheel, which in itself after combing its The row of teeth would remain forever due to external action, namely under Mediation of the well-known measuring wheel rotated with the advancing baling straw to start moving again in due course.

For this purpose, a passive driver on the driven wheel in brought the path of an active driver on the drive wheel and through this driver lent the driven wheel an impetus which initiates the renewed engagement of the toothing. With this arrangement one is of the transmission ratio ι: ι between driving and driven wheel, as is the case with the single-turn clutches known for the same end purpose must rule, independently. The working time of the tie can also be precisely determined with reference to the piston clearance of the press, since the real restart of the gear train through the place .des active driver on the drive wheel is determined. In addition, the new design stands out by avoiding springs and by preventing interference from jamming so easily can be caused by straws in sensitive gear parts.

Such a device is shown by Fig. 1 in a cross section through the baling channel shown. Fig. 2 is a side view of the truss drive. Fig. 3 is a special representation the driver arrangement, which here in contrast to FIG. 2 in the effective position appears. Fig. 4 is another special representation showing the folding of the passive Driver illustrated in the inoperative position.

Es.ist α the flat-rectangular baling channel formed by the frame cheeks bb and the sheet metal bottoms c and d, horizontal arrangement. Above the baling channel is the binding shaft e with the known binding device f, not to be further described here, and below the baling channel is the needle shaft g, driven by the shaft e, with the needle h reaching through the baling channel from below.

On both sides of the press channel, the gears i, i ' rotate around pins, which are driven by the drive shaft k (only indicated in FIG. 2) with the tooth /, V and are driven by crank pins in, in' and

Claims (2)

Push rods η, η 'move the plunger back and forth. As can be seen from FIG. 2, the gearwheel ο on the binder shaft e, which meshes with the wheel i ', has a gap in its toothing, by virtue of which it remains stationary after its row of teeth has been combed off. The combing of this row of teeth each time means that the binder works. So that the gearing becomes effective again after the predetermined amount of baling straw has been collected, the controllable, passive driver p is attached to the wheel o on the tie shaft and the active driver q is attached to the wheel V. If the passive driver p is in its active position (FIG. 3), it is pushed further by the active driver q until the beginning of the row of teeth on gear 0 has run into the toothing of gear i '. The active driver q is attached to the wheel i 'with respect to the crank pin m' in such a way that the truss movement can be initiated at the right point in time, i. H. happens when the piston moves and the binding of the twine can take place in the area of the front end position of the piston. The passive driver p is controlled as follows: The driver, which is rotatable about the pin r, rests against the curved piece t (FIG. 3) under the action of a counterweight. H. is obtained directed radially outward. If wheel 0 continues to rotate, then, as can be seen from the one-dotted intermediate position in FIG. 4, the driver p out of contact with the curved piece t, since the counterweight s always strives downward. As the rotation continues, the freely hanging weight is directed towards the shaft e. It then finally rests on a stop w from the inside, the driver p being directed inwards and ineffective (FIG. 2). Now the drive wheel i 'with its driver q can continue to rotate and the piston moving back and forth can collect a new amount of straw without the binder becoming active. The so-called measuring wheel χ on shaft y <is slowly rotated forwards in a known manner by the accumulating and slowly advancing compressed straw, with it also the donor wheel z sitting on shaft y, which is also known per se, but here to make the driver work p serves. This is done simply in such a way that one of the pins goes under the lever arm ν, lifts the weight s out of its rest position and throws it around, whereby the position of the driver shown in FIG. 3 has re-entered. The approaching active driver q can then take effect. By changing the number of pins attached to the pin washer ζ so as to be exchangeable at regular intervals, the frequency with which the binder is switched on and therefore the size of the divided and tied up amounts of straw can be regulated in a known manner. Godfather τ-An Proverbs: 1. Straw press with automatic engagement device for the binder driven by a gear train with incomplete toothing, characterized in that a passive driver (p) on the incompletely toothed, driven wheel (0) in the known measuring wheel (x) rotated by the advancing baling straw The path of an active driver (q) is brought to the drive wheel {i ') and the wheel (0) is thereby given an impetus which initiates the renewed engagement of the toothing. 2. Automatic engagement device according to claim 1 in such a design that the passive driver (p) hinged to the wheel (0) on the tie shaft (e) is brought into its ineffective position by the counterweight (s) and the measuring wheel ( x) rotated known pin wheel (z) in the path of the active driver (q) is rotated. 1 sheet of drawings.