DE1229773B - Bale spinner on binding presses for agricultural crops - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

int. Cl .:

AOId

German class: 45 c -87/12

Number: 1229 773

File number: M 63750 m / 45 c

Filing date: January 11, 1965

Opening day: December 1, 1966

. The invention relates to a bale spinner on a binding press for agricultural crops with an arm having a limb; -Ejector for ejecting the bale and with a drive derived from the press.

.It. a bale thrower has already become known, in which the bales are gripped by rapidly rotating rollers as they exit the baling channel which are of a common V-belt, but otherwise each of them has its own pulley are driven. The belt slip can affect the speed of each individual roller set the current load condition.

■ The roller speed is from the tractor from adjustable. This way the throwing distance can the bale are changed: by what means; enables even loading of the attached wagon shall be.

However, this version has the disadvantage that many rotating rollers with V-belt pulleys and.ein.langer are used to drive them V-belts are required, which make the device more expensive and also extend to an undesirable extent.

In another known embodiment, one has. in place of the unloading chute a frame is attached, in the two counter-rotating, rapidly rotating screws on the bottom surface are stored. The worm threads of the screw conveyors should be frictionally engaged on the Act on the balls and accelerate them to throwing speed. With a drive of the throwing device from the straw or hay press, some fault-prone bevel drives would be required. For this The reason is that the throwing device is driven by an add-on motor, but what the system is expensive.

To drive the throwing device from the press drive To be able to derive, one has already suggested, from the flywheel of the straw press from a V-belt drive to the one consisting of two opposing circumferential belts Direct throwing device. Here are the individual V-belts arranged in the manner of angled drives assigned divided disks, the effective diameter of which can be changed. Also this bale throwing device requires a range of V-belts, adjustable pulleys and tensioners, which make the drive more expensive to an undesirable extent.

There is also a throwing device, which is operated by the binding needle shaft via a linkage, and a bale thrower on binding presses for
agricultural crop

Applicant:

Maschinenfabrik Fahr Aktiengesellschaft,
Gottmadingen (district of Konstanz)

Named as inventor:

Dipl.-Ing. Gottfried Kotier, Gottmadingen

(District of Constance)

is grown behind the baling channel outlet, as well as known a sling that has the shape of an endless chain with spring drive, which is driven by the

zo movement of the bale is tensioned and then released for ejection. This device too ge; n siteen. however-, behind .dem baling channel exit and thereby extend the machine.

The object of the invention is to address the disadvantages

^. ", which is derived from those derived from the press Chain and belt drives and from the extension of the machine as a result of the addition of the bale thrower behind the bale canal exit, and to create a bale thrower, which in a normal The press for agricultural crops can be built in and does not require an external drive or expensive belt drives or circumferential belts.

According to the invention, this object is achieved in that the ejector is driven by a binding needle drive the press switchable spring drive is actuated during the subsequent piston stroke is tensioned again by the crank mechanism of the plunger, and that its throwing arm is on its ejection path engages in the press channel of the binding press.

According to the invention, the ejector is expediently on a crank pin on the machine frame rotatably mounted crank supported. The binding needle drive is advantageously at a standstill via a switching rod with a pawl for the ejector and the The crank drive of the plunger is connected to the ejector via a pull rope.

In the drawing, an embodiment of the invention is shown as an example.

In the trained in a known manner pressing channel 1 of a baling press of the plunger 2 is by means Crank mechanism 3 slidably mounted. On the housing

609 729/116

of the press channel 1 or on another part of the machine frame support plates 4 and 5 are attached. A crank is mounted on the support plate 4, of which only the crank pin 6 and the Spigot track 6 '(dash-dotted) are shown. A two-armed ejector sits on the crank pin 6 7, the limb 8 of which is shaped to a point and attached to the support plate 5 under the action of a Tension spring 9 stands. A rod 11 is articulated on the power arm 10 and is pivotable on the support plate 5 is mounted, and a pull rope 12 is attached, which runs over a pivotable angle bracket 13 and on the Crank 14 of the crank mechanism 3 engages.

On the support plate 4, a pawl 15 is mounted, which via a on the drive 17 for the binding needle 18 articulated rod 16 can be pivoted. The pawl 15 engages in the rest position.under a Ejector nose 19 7.

At work, the crank 14 of the plunger 2 can rotate for so long and straw or hay in the process stuff into the baling channel 1 until the needle drive 17 is switched on. Then pulls the one with the needle drive 17 connected switching rod 16 the pawl 15 of the retaining lug 19 of the ejector 7 path. Under the action of the pretensioned spring 9, the ejector 7 moves from the crank pin 6 guided in the direction of arrow 20 with its ejector tip 8 jerkily through a housing slot in the bale channel 1, sticks it into the prepared bale 21 and moves along the Lane 22 up. The bale 21 is torn through the bale channel 1 and in the direction of the arrow 23 thrown out of the baling channel 1.

The length of the pull rope 12 to the power arm 10 of the ejector 7 is dimensioned or adjustable so that the crank 14 tensions the pull cable 12 guided over the angle support 13 and the ejector 7 again pulls into the rest position shown in the drawing. The spring 9 was tensioned. Is the Ejector 7 engaged in the pawl 15, then the pull rope 12 hangs in the position 12 '.

In the pull rope 12, in order to achieve a greater length compensation and a backup, another additional spring 24 may be installed. It is also possible to attach a spring 26 to a fixed point 25 attach, which keeps the angle bracket 13 always in a certain position when the pull rope is relieved.

Claims (4)

Patent claims: 1. Bale centrifuge on binding presses for agricultural crops with an ejector having a throwing arm which is driven by the press, characterized in that the ejector (7) can be actuated by a spring drive (9) which can be switched on by the binding needle drive (17) of the press subsequent piston stroke is tensioned again by the crank mechanism (3) of the plunger (2), and that its throwing arm (8) engages on its ejection path (22) in the pressing channel (1) of the binding press. 2. bale spinner according to claim 1, characterized in that the ejector (7) on one The crank pin (6) of a crank rotatably mounted on the machine frame is supported. 3. bale spinner according to claim 1 or 2, - characterized in that the binding needle drive (17) via a switching rod (16) with a pawl (15) for the tensioned by the spring (9) Ejector (7) is in communication. 4. bale thrower according to one of claims 1 to 3, characterized in that the crank drive (3) of the plunger (2) is connected to the ejector (7) via a pull rope (12). Considered publications:
German utility model No. 1 902 800;
British Patent No. 968,975;
U.S. Patent Nos. 3,087,600, 2,756,865. 1 sheet of drawings 609 7297116 11.66 © Bundesdruckerei Berlin