SU1713487A1 - Fiber plant material press - Google Patents

Description

The invention relates to agriculture, to the primary processing of bast fibers, and can also be used for pressing short into oysters into prismatic bales.

A baler is known comprising a frame on which a pick-up, a loading device, a closed-type bale chamber with a constant cross section and an opening rear wall, a press plate with a drive and a bale wrapping mechanism (1.

The disadvantages of this design are increased energy consumption for pushing the bales out of the chamber and reducing the quality of their packaging during unloading. This happens because the bale falls out of the pressing chamber after it is pushed out by the incoming material by an amount not less than 2/3 of its length. The ejection process is accompanied by some unraveling of the bale, as part of it. pushed out of the chamber, hanging in the air and under the action of the force of gravity tends to descend and the opposite end to lift up (this is especially clearly seen when pushing the bale in half or more), but the bale is not absolutely rigid, therefore . coinciding with the closed position of the rear wall, there is some bending of the bale, which leads to unwinding. In addition, the intake of portions and the camera occurs at a certain interval, determined primarily by the time spent on the working and idle strokes of the pressing plate. Due to this, the time in the air of the ejected part of the bale increases, the boom of possible inflection grows accordingly, and the conditions of the bale exit and the camera deteriorate. At the time the bound bale leaves the chamber, the loose end of the newly formed bale approaches it can hang out. When closing the back of the machine, these strands are pinched between the back wall and the bottom or side, resulting in a shapeless bale.

A press is also known, which includes a feeding device, a press plate with a drive, a loading chamber and n (E) sessing chambers, the latter having a rear wall hinged on the opening mechanism. In the pressing chamber can simultaneously accommodate at least two bales 2.

The ejection of the bale by the newly arriving material occurs indirectly through the bale present in the chamber, which

reduces the pinching of the fiber between the opening rear and fixed side and bottom walls, but does not completely reduce or improve the conditions

bale exit from the chamber.

The purpose of the invention is to reduce the energy consumption for pushing the bales out of the chamber and to prevent a reduction in the quality of their packaging during unloading.

0 This goal is achieved by the fact that part of the lower wall with. The sides of the output end of the chambers (1i) are made in the form of a flap having the ability to rotate about an axis. fixed on the fixed part of the bottom wall.

FIG. t A press press is schematically depicted for pressing fibrous materials with bound bales in a chamber and a closed back wall; in fig. 2 is the same during the process of pushing the bale out of the chamber.

The press for pressing fibrous materials consists of a device 1. providing batch feeding, a pressure plate 2 with a drive, a nalimer, from a hydraulic cylinder 3. a bale wrapping mechanism 4, a pressing chamber 5 with a loading window b and fiber holders 7. The pressing chamber 5 is horizontal so that its width exceeds the height, and

0 consists of two side, top 8 and bottom steaks, while a part of the bottom wall on the output end of the chamber, commensurate with the length of the bale, is made of & as a flap 10. having the ability to rotate about an axis 11 fixed to the fixed part 9 of the bottom wall. From the exit of the fiber from the bale chamber, it is closed for days by wall 12, which can be rotated about an axis 13 fixed on the upper wall 8 and driven by a hydraulic cylinder 14 through a lever 15. The valve 10 is also driven by a hydraulic cylinder 16 and ends the protrusion 17, which when it closes and closes the rear wall 12 enters the C-shaped groove 18 of the latter.

The press works as follows. FIBER in separate portions comes from the power supply device 1, made, for example, in the form of a weighing hopper, through the loading window b into the receiving chamber. The next portion of the fiber entering the receiving chamber.

5 is pushed into the pressing chamber 5 by the pressing plate 2, which is driven by the hydraulic cylinder 3, and is kept there in a compressed state after the pressing plate leaves the fiber holders 7. After the bale reaches the specified dimensions and

it is tied to the masses by mechanism 4, after which the pressing plate 2, which was found in the extreme forward position during the binding, moves back. The opening of the valve 10 and the rear wall 12 occurs in the following sequence. Taking into account the fact that the pressed material, compressed in its direction, tends5; 1 to expand not only 8 the direction of pressing, but also in the direction perpendicular to it; it is tightly wedged by the protrusion 17 of the flap in the groove 18 of the rear wall 12. This jamming is possible for the reason that the hydraulic cylinder 16, being under the load, gives some shrinkage due to the fact that in any; even intact, hydraulic equipment inevitably some oil leaks, especially if external force constantly acts on the cylinder. Therefore, before opening the rear wall, it is necessary to put the Giyror spool, so that the rudder controls the reed, in the Closing position for 1-2 s. The oil admitted to the injection layer of the hydraulic cylinder 16 pushes the flap III up and the protrusion 17 disengages from the plasma 1 & back wall. Transferring the spool to the control hydraulic cylinder 14 to the opening position, the oil is fed into the rod end of the cylinder, which acts on the lever $ 5 and opens the bottom of the rack 12. In this way, the barge 10 is digging. As a result, the bale goes in the chamber due to the strength of the fiber tray on the side walls.

When the bale chamber 5 enters the chamber, several portions of the bale are pushed in the direction of fiber movement and fall to the floor, since the force of gravity exceeds the force of friction of the fiber against the side walls. Thereafter, the hydraulic cylinder 16 closes the valve 10, and the hydraulic cylinder 14 through the lever 15, the rear wall 12, and the cycle repeats.

The proposed press makes it possible to reduce the energy consumption for pushing the bales out of the chamber and at the same time prevent a reduction in the quality of their packaging during unloading.

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A press for pressing fibrous materials, comprising a horizontal pressing chamber formed by four fixed and opening rear walls, a press plate with a drive, a device for batch feeding and a bale wrapping mechanism, so that reducing energy consumption for pushing the bales out of the chamber and preventing the quality of their packaging from deteriorating during unloading, part of the bottom wall is fixed at the exit end of the chamber and made in the form of a flap with the possibility of its fixation in the mountains from the horizontal position.

Claims (1)

Claim A press for pressing the die of raw materials, comprising a horizontal pressing chamber formed by four fixed and opening rear walls, a press plate with a drive, a batch feeding device and a bale strapping mechanism, that, in order to reduce! 5 energy costs for pushing bales out of the chamber and prevent a decrease in the quality of their packaging during unloading, a part of the lower wall from the side of the outlet end of the chamber is hinged and made in the form of a 10 'shutter with the possibility of fixing it in g horizontal position.