DE1062052B - Straw cutter for straw presses - Google Patents

Description

GERMAN

The invention relates to the arrangement of a straw cutter, which is optionally used for cutting the from the Straw press is used and even in unfavorable straw conditions a blockage of the Machine switches off as far as possible.

Straw cutters or straw milling machines are to be arranged behind straw balers, especially on threshing machines, is known. It has been suggested that the knife shaft of a straw cutter be placed roughly in the middle of the Attach the compression channel. A straw cutter has also been disclosed, the cutting tools of which are direct sit in front of the mouth of the baling channel in order to take up the straw fed in by the plunger directly. Another embodiment provides for the straw cutter to be hinged in front of the mouth of the baling channel to arrange.

However, all previously known devices have the disadvantage that, if at all, then only with great effort is possible to either cut the straw coming from the straw press or it to be released uncut. This demand, which is particularly urgent in the case of the wage thrust, is also included a folding straw cutter is not fulfilled, since the straw cutter that can be folded up even with very easy execution is still too heavy to be operated by one person. To be on the safe side, it is also necessary, the straw cutting device both in the forward and in the folded up position to fix. Furthermore, the folded up straw cutter is an obstacle in removing the malfunctions occurring on the press or the binding device.

An all-round satisfactory straw cutting device could not be created by that the knives for chopping the straw are arranged on the side of the straw outlet opening, whereby the straw is brought in front of the knives by an Ouerförderer. In this case it is possible to eject the straw either long or short cut, depending on whether the detachable one is attached Cross conveyor is removed or installed, but the respective installation of the cross conveyor is always associated with certain difficulties. In addition, if the knife is overused, there is none Possibility of another discharge given.

This is where the invention ties in and proposes the straw cutter below the straw press mouth to be installed so that the top of the straw feeding drum and the straw cutting blades are deeper than the Press channel floor lie.

According to the invention it is further proposed that a pivotable flap be provided at the mouth of the baling channel to be arranged, which is held by spring pressure and thus closes the baling channel towards the front.

Straw cutter for straw presses

Applicant:
Carl Geringhoff, Ahlen (Westphalia)

Franz Lüttmann and Wilhelm Allerdissen, Ahlen (Westphalia), have been named as inventors

Invention are from the exemplary embodiment

eme

More details of the
Drawing can be seen that
represents leadership.

Fig. 1 shows a schematic longitudinal section through the straw press according to the invention, in which the The baling channel is closed with a flat flap while the straw is being cut;

Fig. 2 shows the same schematic longitudinal section, with the cutting device not in operation is;

Fig. 3 shows the device as Figure 1, but with a curved end flap;

Fig. 4

the

contraption

like Fig. 2 with

curved end cap.

In the baling channel 1 of a straw press there is the plunger 2 which pushes the straw through the baling channel. At the mouth 3 of this compression channel, a flap 4 is rotatably attached. This flap 4 is pressed down by a spring 5 which is attached to a holder 6. Below the flap 4 in front of the mouth of the baling channel is the straw transport shaft 7, which carries the driver cams or knives 8 and brings the straw in front of the knives. The top 9 of these knives or cams is lower than the bottom 10 of the pressing channel 1. By means of guide plates 1, which are arranged to be adjustable, a controllable exit of the straw is made possible.

According to the invention it is possible to design the flap 4 to be flat or curved. When using a flat flap, the spring 5 will preferably engage approximately in the middle of the flap, while with a curved flap a spring-loaded catch 12 is advantageously attached so that the front end of the flap is held by it.

When the straw is to be cut, it will

unbound pressed by the plunger 2 through the baling channel 1. The relatively loosely pressed straw

909 578/114

Claims (4)

can not leave the bale mouth 3 to the front, since the flap 4 prevents it from exiting. This deflects the straw downwards. The cut straw leaves the straw cutting device downwards, being guided past the adjustable guide plates 11 which regulate the exit. If the straw cutter is clogged and does not want to accept any more straw, the straw pushed in by the plunger will open the flap 4. The straw can then get outside without going through the straw cutting device. This arrangement has the effect that no clogging is caused even with damp straw interspersed with grass. A break in the straw cutting device is largely excluded. If the straw is not to be cut, but tied and stored pressed into bundles, the spring load is removed from the flap 4 and the flap is raised. A known straw bale chute 13 can then be attached to the baling channel floor. The bales of straw can step outside unhindered over the straw cutter. The changeover from chopped straw to straw compacted in bales can be carried out by one person quickly and without great effort. Patent claims: 1. Straw cutter on straw presses, characterized in that the straw cutter is so deep is arranged below the straw baler mouth that the top of the straw bringing drum as well as the straw cutting knives are lower than the baling channel floor. 2. Straw cutter according to claim 1, characterized in that at the mouth of the press channel a flap is rotatably mounted. 3. Straw cutter according to claims 1 and 2, characterized in that the flap on the The bale channel mouth is under spring pressure. 4. Straw cutter according to claims 1 to 3, characterized in that the controllable outlet of the cut straw are adjustable baffles. Considered publications:
Italian patent specification No. 506 556. 1 sheet of drawings © 909 578/114 7.59