NL1036419C2 - BALING PRESS FOR PRESSING BALES OF ORGANIC MATERIAL, METHOD FOR PRESSING BALES OF ORGANIC MATERIAL. - Google Patents

Description

Baler for pressing bales of organic material, method for pressing bales of organic material The invention relates to a baler for pressing bales of organic material. The invention also relates to a method for pressing bales of organic material.

For packing hay and straw and wood shavings and other similar material, presses are now used that press the product into a subsequent smaller pressing channel by means of a ram moving into a pressing channel, after which the product is pressed into channels that become increasingly smaller. , depending on the stroke of the press block and the desired compaction of the product.

Although such presses work reasonably well, there are some drawbacks to the existing 15 presses, in particular in the following areas: 1 waiting times: Each pressing requires a certain amount of time and it is preferable to shorten the time.

2 energy requirement, the existing presses consume a lot of energy.

20 3 cheap * build, and reliability. The existing presses are relatively expensive and contain a lot of moving parts. Moving parts require relatively much maintenance.

It is an object of the invention to provide a press and a method with which one or more of the above problems are alleviated.

25

To this end, a baler according to the invention is characterized in that it comprises a conical screw in an entrance funnel for pressing material into a pressing channel, which pressing channel comprises a ram for further compressing material to an outlet of the pressing channel.

The method according to the invention is characterized in that organic material is pressed into a press channel by a conical screw in a conical inlet funnel, after which a tappet further compresses the material to an outlet of the press channel.

In the existing presses, the pushers must always move back to their starting position. The reciprocating movement takes time and thereby increases the waiting time. The reciprocating movement also requires energy. It should be borne in mind that not only the pushers have to be moved back and forth, but that the pushers are often hydraulically driven, so that the oil must always be pressed in and out of pressure pipes. These movements require a lot of energy.

In the baler according to the invention use is made of a conical screw in a hopper. The screw does not have to be moved back and forth but can rotate continuously. This requires less energy and can increase the pressing speed. Moreover, there are fewer moving parts, and there is less chance of oil leaks from hydraulic systems, so that construction can be cheaper and operational reliability can be increased.

These and further aspects of the invention are described below and illustrated with reference to the drawing:

In the drawing: Figures 1 to 4 show a known baler;

Figure 5 is a sectional view of a baler according to the invention;

Figure 6 shows a further section of the baler according to the invention;

Figure 7 is a top view of a baler according to the invention.

The figures are not drawn to scale, the same parts are generally designated by the same reference numerals.

Figures 1 to 4 schematically illustrate a known baler.

FIG. 1 shows the positions of the ejectors and valves in the initial position. The top of the press channel 1 is open. Here the loose product is poured in, ram 4 is in the starting position behind the loosely poured product, ram 5 is in the starting position, ram 6 is in the 3 end position and valve 7 is open. Pusher 4 is then moved to the end position and pusher 6 to the start position. The product is now in press channel 2 as shown in Fig. 2.

Pusher 5 is then moved to the end position and shut-off valve 7 is closed. The S product is now in press channel 3, as shown in Figure 3.

Ejector 6 is then moved to the position ± halfway its stroke (adjustable) depending on the desired compactness, shut-off valve 7 is opened and ejector 6 continues its way to the end position, whereby the product is pressed into the bag placed around the outlet. Tappet 4 is moved to the starting position, as shown in Figure 4.

Pusher S is then moved to the starting position, as shown in FIG. Etc.

The waiting times that arise until one ram is past another ram and the return movement of the ram are at the expense of time and increase the waiting times. Moving the pushers back and forth requires great energy. The existing press has a large number of moving 15 parts.

It is the object of the inventor to provide a press which inter alia consumes less energy and operates faster and preferably produces less noise. Figure 5 illustrates a press according to the invention in cross section.

A conical conveyor screw (52) is placed in the hopper (51). Drive by means of a motor (55) or other drive in the indicated direction causes the screw to rotate, resulting in a transport of the hay, straw or other similar products poured into the hopper to the discharge channel located at the end of the hopper. Due to the centrifugal force, the product that falls on the conveyor screw will be pressed against the hopper wall. In embodiments, the hopper wall can be provided with grooves to prevent the product from turning with the conveyor screw. the transport screw itself, on the other hand, is preferably smoothly finished.

The underside of the continuously rotating conveyor screw, the underside of which is approximately the same, preferably the same, is flush with the inside of the press channel to prevent product from being pushed back into the hopper with the ejector.

4

The axis of the conveyor screw is preferably conically shaped at the bottom to leave sufficient space to press the product into the pressing channel.

The symmetrically shaped ejector (58) connected to the carriage (63) by means of a binding support (65) can be moved back and forth in the pressing channel, this can be done by means of a cylinder, threaded spindle, gear rack or other drive, the slot in the discharge channel through which the connecting strut runs is sealed by a sealing tape (66) which passes through the ejector and is fixed in the ends of spout (67 and 68).

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The shut-off valves (59) and (60) serve to stop the product to be pressed until the desired volume is reached

The press is preferably operated in such a way that the conveyor screw continues to rotate continuously. Because the transport screw continues to rotate continuously, a large part of the product to be compressed will be compressed by the mere wheel action alone.

Operation: (initial position of ejector and shut-off valves as can be seen in figure 5) A metered amount of loose product is poured into the hopper and is compressed in the discharge channel (57) by the transport screw. The ejector moves towards the shut-off valve (59) until the rolled volume of the product has been reached. The shut-off valve (59) is then opened, the shut-off valve 60 is closed simultaneously and a new quantity of loose product can be poured into the hopper, the ejector continues its way to the end position, whereby the product 25 is placed in the bag placed around the outlet (68) pressed. The shut-off valves close an outlet. The ejector moves towards the shut-off valve (60) until the desired volume of the product is reached, the shut-off valve (60) is opened, the shut-off valve (59) is simultaneously closed and a new quantity of loose product can be poured into the hopper, the ejector continues its way to the end position, whereby the product is pressed into the bag placed around the outlet (67). Etc. The discharge channel therefore comprises a shut-off valve and an outlet on both sides, the ram 58 being moved back and forth. Because the pressing channel comprises an outlet 5 on both sides, and the baler is arranged such that the ram is arranged symmetrically, i.e. performs a pressing operation in reciprocating and recoiling motion, the efficiency is increased.

Advantages of the press according to the invention and this method of pressing include.

5 1 faster pressing (waiting times limited to a minimum).

2 energy saving (no backward movements that do require energy and do not produce).

3 cheaper construction (fewer moving parts and controls).

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It will be clear that many variations are possible within the scope of the invention and that the invention is not limited to the examples given above.

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In the example, the press contains a single pressing channel after the conical screw. This is a simple embodiment and a preferred embodiment. In more complicated embodiments, a further pressing stroke may be possible.

1036419.

Claims (7)

Claims 1. Baler for pressing bales of organic material, comprising a pressing channel and a ram, characterized in that the baler comprises a conical screw in a conical inlet funnel for pressing material in a press channel, which press channel comprises a ram for further compression of material to an outlet of the press channel. 2. Baler according to claim 1, characterized in that the baler is adapted to cause the conical screw to rotate continuously. 3. Baler as claimed in claim 1 or 2, characterized in that the entrance funnel is provided with grooves. 4. Baler according to any one of the preceding claims, characterized in that the transport screw is provided on a side directed towards the pressing channel with a shaft with a conical shape. 5. Baler according to one of the preceding claims, characterized in that the pressing channel has an outlet on both sides, and the baler is arranged such that the ram is arranged symmetrically for carrying out a pressing operation back and forth. Use of a baler according to one of the preceding claims. 7. Method for pressing bales of organic material, wherein organic material is pressed through a conical screw in a conical inlet funnel in a press channel, after which a ram further compresses the material to an outlet of the press channel. 1036419