WO2021102490A1

WO2021102490A1 - Device for portioning and comminuting a tubular pressed article

Info

Publication number: WO2021102490A1
Application number: PCT/AT2020/060384
Authority: WO
Inventors: Franz Eckerstorfer
Original assignee: Franz Eckerstorfer
Priority date: 2019-11-27
Filing date: 2020-11-03
Publication date: 2021-06-03
Also published as: AT522478A4; AT522478B1

Abstract

The invention relates to a device for portioning and loosening up a tubular pressed article (1), comprising: a suspension (2) for a drive machine; and two portioning shells (3), which are arranged on said suspension (2) and can be moved between a receiving position and a processing position. The aim of the invention is to allow remnant-free and expeditious portioning and loosening up of the pressed article in accordance with the dimension of the pressed article, without increasing the effort required to transport the loosened material away. This aim is achieved, according to the invention, in that, in the processing position, the portioning shells (3) span a closed processing region (4) for a rotor (6), which can be rotationally driven therein around a rotor shaft (5).

Description

Device for portioning and comminuting a pressed tube

Technical area

The invention relates to a device for portioning and loosening a pressed tube with a suspension for a drive machine and two portioning trays arranged on this suspension and displaceable relative to one another between a receiving position and a processing position.

State of the art

From the prior art, different devices for portioning and loosening up hose or bale compacts, for example hose or bale silage, are known. For this purpose, EP2509405B1 shows a gripper having a cutter head and a stop element opposite the cutter head, with two gripper arms which can be displaced relative to one another. The gripper can be arranged on a drive machine via a suspension. To portion the pressed bale, the gripper arm having the cutter head is guided to the stop element of the second gripper arm opposite the first gripper arm, whereby the bale is divided due to the induced radial forces along a cutting plane normal to the top surfaces of the cylindrical bale. The disadvantage of this, however, is that this device leads to inadequate results, especially when portioning long compressed tube pieces that exceed the dimensions of the gripper, since during portioning between the portion to be separated and the rest of the compressed tube piece, undefined transitions and uncontrolled falling out of the tube Good things come out of the hose. In addition, as a result of the crushing induced by the gripper arm, the not removed Silage of the pressed tube carbon dioxide displaced from the pressed tube. By releasing the squeeze, ambient air is sucked in from the silage that has not been removed, which can lead to incorrect fermentation and spoilage of the silage. In addition, after portioning or loosening, pourable goods in particular have to be transported away by another device, since they cannot be held by the gripper, which in turn means increased effort.

EP2319293 discloses a stationary device for portioning a tubular pressed part. For this purpose, the device comprises two portioning knives which can be displaced relative to one another and which divides a fed tubular pressed part along a cutting plane running parallel to the cut surface of the cylindrical tubular pressed part. For the loading and removal of the goods, further devices are again required, which in turn increases the expenditure in terms of time and money.

Presentation of the invention

The invention is therefore based on the object of proposing a device of the type described above, which allows residue-free and time-saving portioning and loosening of the pressed product, regardless of the dimensions of the pressed product, without increasing the effort involved in transporting the loosened product.

The invention achieves the stated problem in that, in the processing position, the portioning trays open up a closed processing area for a rotor which can be driven in rotation about a rotor axis therein. As a result of this measure, the material loosened from the pressed tube remains during loosening in the closed processing area spanned by the portioning trays, whereby undesired residues in the area surrounding the pressed tube can be largely prevented. In addition, there is the advantage that, in contrast to the prior art, the process of portioning, loosening and transporting away with only one Device can be carried out. For portioning, the portioning shells are brought into the receiving position, that is to say in a position in which the shells are spaced from one another so far that there is space for a pressed tube between the portioning shells. By shifting the portioning trays to one another, that is to say in the processing position, the pressed tube is divided along a cutting plane running parallel to the top surface of the cylindrical pressed tube and simultaneously received by the portioning trays. As a result, variable portions, i.e. pellet slices of different thicknesses, can be separated from the tubular compact. The portioning trays are displaceably arranged on a suspension for a drive machine, for example a rear or front hydraulic system of a tractor, a front loader or a telescopic loader, whereby the portioned pellets can be transported away immediately. Since the rotor is arranged in the processing area spanned by the portioning trays, the loosening of the portioned pellet can already take place, for example, while it is being transported away, which results in a particularly time-saving processing process. In principle, the portioning trays can be displaced and the rotor can be driven via the drive machines, for example that of a tractor, or via external drives, for example a hydraulic system or a power take-off shaft.

It is also conceivable that the portioning trays can be pivoted about a pivot axis in the receiving position, so that pressed tube articles with a wide base or pressed tube articles lying close to one another can also be picked up in a simple manner.

In order to achieve a homogeneous comminution or loosening of the picked up, portioned pellets in the entire processing area and thus prevent an accumulation of uncomminuted coarse material in areas of the processing area inaccessible to the rotor, it is proposed that the portioning trays be designed as hollow, congruent cylinder segments. The rotor can preferably be arranged in the machining area that the rotor axis of the rotor and the The axis of rotation of the cylindrical processing area spanned by the portioning trays are coaxial. In this way, a large part of the machining area can be reached by the rotor if its dimension is just below the diameter of the cylindrical machining area.

In order to enable the portioned pellet to be evenly scraped off from its jacket, it is recommended that the rotor has a cutter head protruding from the rotor for dissolving the portioned pressed tube received by the portioning trays. The cutter head can preferably extend transversely to the rotor, parallel to its rotor axis. The blades of the cutter head can run in the direction of rotation of the rotor and / or in the direction of the rotor center. At the same time, the cutter head can be used to clean the processing area when emptying the loosened material.

Particularly favorable conditions with regard to efficient loosening arise when the rotor forms two cutter heads which run parallel to the rotor axis and which are provided at ends of the rotor which are diametrically opposite with respect to the rotor axis.

So that a trouble-free and residue-free separation of a pressed tube to be portioned with a particularly high strength is made possible, the portioning trays can comprise cutting bars for easier penetration into the pressed tube, which are arranged on the suspension opposite abutting edges of the portioning trays. In this way, the displacement of the portioning trays from their receiving position into the processing position is simplified, even with hard pressed pellets, in that the cutting bars cut through the cutting plane running parallel to the cut surface of the cylindrical tube pellet or saw with a type of chainsaw. In addition, this also results in a squeezing of the pressed tube that has not been removed, for example a tube silage, and an associated expulsion of the carbon dioxide prevented, whereby the shelf life of the remaining silage or the non-portioned tubular compact is significantly increased.

In order to achieve a homogeneous distribution of the material to be loosened in the processing area during the separation of the compact disc from the compacted tube, it is recommended that guide plates are provided in the area of the abutting edges opposite the suspension to deflect the compacted tube received by the portioning dishes in the direction of the inner surface of the portioning dish. The guide plates can, for example, be connected to the cutting bars, so that the guide plates also experience a vertical movement, as a result of which the goods picked up are conveyed in the direction of the inner casing of the portioning bowl.

In order to enable a continuous discharge of material from the pressed part loosened in the processing area spanned by the portioning trays, it is proposed that at least one portioning tray has a material discharge flap on the jacket side. As soon as a desired degree of comminution or loosening of the compact has been reached, the material discharge flap can be opened. As the rotor moves, the loosened material is gradually discharged. As a result, the device can be used not only for portioning, loosening and transporting away, but also for an even distribution of the goods, as is customary, for example, when feeding livestock.

So that the portion of the pressed tubular part to be portioned can be completely received by the portioning trays, it is recommended that the portioning trays can be displaced between the receiving position and the processing position along two straight guides arranged on the suspension. The shift is preferably carried out horizontally. In this way, the pressed tube experiences a force evenly distributed over its jacket, so that squeezing the pressed article out of the potioning shells, as would be the case, for example, with a pivoting mechanism, can be largely avoided. A particularly high force input, without falling short of the requirements placed on agricultural machinery in terms of robustness and longevity, can be achieved if the straight guides are each formed by two square tubes that run into one another and are driven by a hydraulic cylinder.

If the device is attached to a front loader or a telescopic loader and used to fill a feed mixer, some weight can also be saved by doing without the rotor with its drive and / or the discharge flaps and by having the portioning trays in the upper area are made of thinner material, in particular sheet metal, or have clearances in this area.

Brief description of the invention

In the drawing, the subject matter of the invention is shown, for example. Show it

Fig. 1 is a partially sectioned plan view of the device according to the invention in the receiving position,

FIG. 2 shows a partially sectioned plan view of the device according to the invention in the processing position on the same scale and FIG. 3 shows a side view of a rotor according to the invention in an indicated portioning tray and FIG

4 shows a plan view of an alternative embodiment of the device according to the invention in the receiving position.

Ways of Carrying Out the Invention

A device according to the invention for portioning and loosening a pressed tube 1 has a suspension 2, for example a three-point suspension and / or a Euro mount, for a drive machine, not shown, such as that of a tractor. On the suspension 2, two portioning trays 3 are arranged, which are between a receiving position shown in FIG. 1 and one shown in FIG. 2 Processing position are displaceable. As can be seen in particular from FIG. 2, the portioning trays 3 span a closed processing area 4 in the processing position. In this machining area 4, a rotor 6 that can be driven to rotate about a rotor axis 5 is arranged. The displacement of the portioning trays 3 and the drive of the rotor 6 can take place via a drive machine of a tractor or other external drives, such as hydraulic systems.

In order to enable optimal processing of tubular or pressed bales, the portioning trays 3 form hollow and congruent cylinder segments. These cylinder segments span the cylindrical machining area 4 in which the rotor 6 rotates about its rotor axis 5. For the purpose of efficient loosening, the rotor 6 can, as can be seen from FIG. 3, form cutter heads 7 which extend parallel to the rotor axis 5 and are provided at ends of the rotor 6 arranged opposite one another with respect to the rotor axis 5. The cutter heads 7 can form blades 8 which extend in the direction of rotation of the rotor 5 and in the direction of the rotor center.

Blades 8 can also be provided on the rotor 6 itself. The rotor can be designed to rotate to the left and / or to the right.

From FIGS. 1 and 2 it can also be seen that cutting bars 9, which are arranged on mutually opposite abutting edges of the portioning trays 3, can be provided for severing the protective covers and for severing the pressed items from the pressed items. A hydraulic motor 31, for example, is provided for driving the cutting bars 9. In principle, each portioning tray 3 has two short and two long abutting edges. However, as can be seen in FIG. 3, the cutting bars 9 are preferably arranged on only one abutment edge for each portioning tray 3, namely on the long abutment edge which is further spaced from the suspension 2. In FIG. 3 it is indicated that the portioning trays 3 can carry guide rails 32 which, when the portioning trays 3 move together, run into guide rail bearings 33 arranged on the suspension at least in the area of the suspension 2. The loosened material can be continuously removed from the processing area via material discharge flaps 10. For this purpose, the material discharge flaps 10 can be arranged on the jacket side of the positioning trays 3, so that after opening the material discharge flaps 10, the material can be conveyed to the outside with the aid of the rotor 6 in a controlled material flow.

As can be seen from FIGS. 1 and 2, the positioning trays 3 can be displaced between the receiving position and the processing position by means of two straight guides 11. The straight guides 11 can each be formed by two square tubes running into one another and thus connect the portioning trays 3 to the suspension 2. The straight guides 11 can be driven by hydraulic cylinders 12.

1 further discloses that guide plates 13 can be provided on the cutting bars 9, which, analogously to the cutting bars 9, experience a vertical movement and thus convey the goods picked up by the portioning trays 3 horizontally in the direction of the inner casing of the portioning trays.

On the suspension 2, in the area between suspension 2 and positioning trays 3, a screen 14 is arranged, which is intended to prevent the pressed tube 1 to be portioned from falling out in the direction of, for example, a tractor during the portioning process.

Fig. 4 shows a further embodiment of the device according to the invention, in which the portioning trays 3 can be pivoted about a pivot axis 15 in the receiving position, which facilitates the receiving of a pressed tube 1 with a particularly wide base or when pressed tube pieces are close together. Structurally favorable conditions for pivoting arise when this is done by a pivoting hydraulic cylinder 16 which cooperates with a lever arm 17 rigid with respect to the straight guide 11 and a reinforcement 18 for the portioning tray 3 so that it closes when the pivoting hydraulic cylinder 16 is extended or retracted pivoting of the portioning trays 3 comes around the pivot axis 15 in the sense of a forced guidance. Alternatively, the two portioning trays 3 could be connected with a joint in the manner of an excavator shovel.

Furthermore, telescopic supports 19 can be provided for the suspension 2, which also makes it possible to process pellets with a particularly high density without damaging the suspension 2 in the process. The device can thereby be parked in a parking position.

In order to be able to check the fill level in the closed portioning trays 3 at any point in time during processing, viewing slits 20 can be provided in the portioning trays 3. The viewing slots 20 can

Plexiglass panes or fine grids that are incorporated into recesses in the portioning trays 3.

In order to further facilitate the displacement of the portioning trays 3, they can comprise sliding lips 21 on the bottom.

Claims

1. Device for portioning and loosening a pressed tube (1) with a suspension (2) for a drive machine and two portioning trays (3) arranged on this suspension (2) and displaceable between a receiving position and a processing position, characterized in that the portioning trays (3) in the processing position, a closed processing area (4) for a rotor (6) which can be driven in rotation about a rotor axis (5) therein.

2. Device according to claim 1, characterized in that the portioning trays (3) are designed as hollow, congruent cylinder segments.

3. Apparatus according to claim 1 or 2, characterized in that the rotor (6) has a cutter head (7) protruding from the rotor (6) for dissolving the portioned, from the portioning trays (3) received tubular pressed part (1).

4. Apparatus according to claim 3, characterized in that the rotor (6) forms two cutter heads (7) which run parallel to the rotor axis (5) and are provided at ends of the rotor (5) arranged opposite one another with respect to the rotor axis (5).

5. Device according to one of claims 1 to 4, characterized in that the portioning trays (3) for easier penetration into the pressed tube (1) comprise cutting bars (9) which are arranged on the suspension (2) opposite abutting edges of the portioning trays (3) are.

6. Device according to one of claims 1 to 5, characterized in that in the region of the suspension (2) opposite abutting edges Guide plates (13) are provided for deflecting the pressed hose (1) received by the portioning dishes (3) in the direction of the inner casing of the portioning dishes.

7. Device according to one of claims 1 to 6, characterized in that at least one portioning tray (3) on the shell side

Has material discharge flap (10).

8. Device according to one of claims 1 to 7, characterized in that the portioning trays (3) can be displaced between the receiving position and the processing position along two straight guides (11) arranged on the suspension (2).

9. The device according to claim 8, characterized in that the straight guides (11) are each formed by two mutually extending square tubes driven by a hydraulic cylinder (12).