DE1110460B - Mechanical chopping machine - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN Mmffk PATENT OFFICE

Class 45e 29/02

ESTEBNAT.KL. A 01 f

EXPLAINING EDITORIAL 1110 460

P23410m / 45e

REGISTRATION DATE: AUG U S T 22, 1959

NOTIFICATION OF REGISTRATION AND ISSUE OF EDITORIAL:

JULY 6, 1961

The invention relates to a mechanical chopping machine, in which the material in a feed channel in strand form under pressure over a fixed cutting knife is passed, in front of which a knife wheel revolves, whereby for regulation the cutting length of the material to be chopped, the distance between the knife wheel and the fixed knife can be adjusted is.

When processing strong fiber plants, such as. B. reeds, where the strand to be cut is subjected to a high pre-compression, strong knives must be used. If therefore to adjust the rotating knives in relation to the fixed knife the rotating knives be shifted on their shaft and wedged to secure their position on it, it is sufficient for the large forces that occur in the axial direction, such wedging does not allow a secure fit to ensure the knife. Rather, the knives are shifted out of their position, and this results in them incorrect cutting results and sometimes knife breaks.

The aim of the invention is now to design the mechanical chopping machine so that the setting the rotating knife can be done easily and quickly compared to the fixed knife and nevertheless, an unintentional change in the selected setting is definitely avoided.

To achieve this goal, means are provided according to the invention, with the help of which in a stationary Bearing mounted knife wheel shaft for adjusting the cutting length of the material with the wedged on it Knife wheel is displaceable and lockable in the axial direction.

As far as it is a cutting fan, which also has the knife wheel shaft in the axial direction is displaceable and lockable, there is a displacement of the knife wheel shaft from a limit position in the other. In one limit position, the knife wheel shaft retains its character as a cutting element and cuts the incoming goods, while in the other border position it no longer appears as a cutting element occurs. With such cutting fans, the axial adjustment of the knife shaft is therefore only used the task of making the cutting fan work either as such or as a pure conveyor fan. With The setting of the cutting length of the material to be cut have cutting fans designed in this way Nothing to do.

The means for the axial displacement of the knife wheel shaft exist according to a further embodiment of the invention in a fixed warehouse in which one with

Mechanical chopper

Applicant:

Viktor Petermann, Freiberg (Sa.), Hornstr. 11

Helmut Fischer, Freiberg (Sa.), Brunnenstr. 14,

Herbert Griesbach, Freiberg (Sa.), Damaschkestr. 4,

Max Sandy,

Brand-Erbisdorf (Sa.),

Ernst-Thälmann-Str. 56,

Paul Eichhorn, Cunnersdorf near Hainichen (Sa.),

Arthur Haase, Freiberg (Sa.), Bertholdsweg 33,

and Alfred Schmieder, Freiberg (Sa.), Frauensteiner Str. 25

Viktor Petermann, Helmut Fischer, Herbert Griesbach, Freiberg (Sa.),

Max Sandig, Brand-Erbisdorf (Sa.),

Paul Eichhorn, Cunnersdorf near Hainichen (Sa.),

Arthur Haase and Alfred Schmieder, Freiberg (Sa.), have been named as inventors

Internally threaded bushing or union nut rotatable, but not displaceable in the axial direction is secured.

The invention is described and illustrated by way of example with reference to the drawings. It shows Fig. 1 is a view from above,

Fig. 2 shows, on an enlarged scale, a section through the device according to the invention, Fig. 3 is a partial front view.

109 620/141

1 lld

The knife wheel shaft 1, on which the knife wheel 2 is firmly wedged, is arranged displaceably in its bearings. At one end it has an extension piece 3 which is equipped with an external thread 4. on this external thread 4 is screwed on a sleeve 5 which is equipped with an internal thread 6. the Bush 5 has an annular extension 7, which with its annular surfaces 8 and 9 between the races the roller bearing 10 or 11 is embedded. Since the roller bearings 10 and 11 in the stationary housing 12 are housed, the sleeve 5 can rotate about its axis, but in the axial direction don't move. Therefore, when it is twisted, the extension piece unscrews depending on the direction of rotation 3 of the knife wheel shaft 1 either into the bushing 5 or out of it. By twisting it the sleeve 5 is thereby an axial displacement of the knife wheel shaft 1 with the keyed Knife wheel 2 achieved.

In the embodiment shown, the sleeve 5 is provided with a cap 15 by means of grooved pins 13, 14 connected, so that the sleeve and cap 15 together take the form of a union nut. These Union nut 15 is shown in Fig. 3 in a front view. It has a number of on its face radially provided grooves 16 which are used to adjust or rotate them. In these grooves 16 is how it is shown in Fig. 3 by dash-dotted lines, inserted a special key 17 and with his Help the required rotation of the cap 15 and thus the sleeve 5 achieved.

The sleeve 5 or the cap 15 has a central bore 18, and the extension piece 3 is also provided with a central bore 19 which is equipped with an internal thread 20. A threaded nut bolt 21 is screwed into this bore 19. It is used to secure the respective position of the extension piece 3 within the sleeve 5.

If the knife wheel shaft 1 is to be adjusted in the axial direction, the nut bolt 21 is screwed out of the bore so far that its head 22 no longer rests on the cap 15 or on an intermediate disk 23 placed on the cap. The distance α between the cutting edge of the knife and the feed length of the material to be cut is then set with the special key 17 by turning the cap 15, as indicated in Fig. 1 by the two arrows. After appropriate adjustment of the cutting length in the manner described above, the nut bolt 21 is tightened again and thereby the position of the knife wheel shaft 1 is secured with respect to the bushing 5, so that no axial displacement of the knife wheel shaft 1 is possible. After the adjustment process has been completed, the cap 15 and the head 22 of the nut bolt 21 are covered by a hood 24.

Claims (7)

PATENT CLAIMS: 1. Mechanical chopping machine, in which the material is passed in a feed channel in strand form under pressure to a fixed cutting knife, in front of the circulating a cutting wheel, wherein the is adjustable to be chopped material, the distance of the blade wheel from the fixed blade for Regem the cutting length, characterized characterized in that means are provided with the aid of which the knife wheel shaft (1) mounted in a stationary bearing can be displaced and locked in the axial direction for adjusting the cutting length of the material with the knife wheel firmly wedged on it. 2. Apparatus according to claim 1, characterized in that the means for axial displacement the knife wheel shaft (1) in a stationary bearing (12, 10, 11) exist in which a with an internally threaded bushing (5) rotatable, but not arranged to be displaceable in the axial direction is screwed onto the external thread (4) of an extension piece (3) of the knife wheel shaft (1) is and causes an axial displacement of the knife wheel shaft (1) when it is rotated. 3. Apparatus according to claim 2, characterized in that a locking device for the bushing (5) equipped with an internal thread (6) is provided, which after setting the bushing (5) makes any further twisting of the same impossible. 4. Apparatus according to claim 2, characterized in that the equipped with an internal thread (6) Bush (5) and the extension piece (3) of the knife wheel shaft (1) a central hole (18,19) have, which is equipped with the extension piece (3) with internal thread (20) and that in this bore (19, 20) a threaded nut bolt (21) is screwed in, when it is tightened the sleeve (5) is secured against rotation by the cap (15) firmly connected to it. 5. Apparatus according to claim 2 and 4, characterized in that the sleeve (5) with the Cap (15) is firmly connected and together with it forms a two-part union nut. 6. Apparatus according to claim 2, 4 and 5, characterized in that the cap (15) and the head (22) of the nut bolt (21) are covered by a protective hood (24). 7. Apparatus according to claim 2, 4, 5 and 6, characterized in that the sleeve (5) with its ring (7) is mounted between roller bearings (10, 11). Considered publications:
German publication No. 1082 078. 1 sheet of drawings © 109 620/141 6.61