JPS5912025Y2 - Sorting device in pulse threshing machine - Google Patents

Description

[Detailed description of the invention] This invention is a pulse threshing machine that threshes (threshing) grains from the grain culms of harvested beans such as soybeans. This invention relates to an improvement in a sorting device installed inside the machine so that it can separate and sort debris such as scraps and take them out of the machine.

The purpose of this invention is to carry out the threshing residue discharged from the dust outlet of the threshing chamber of the pulse threshing machine towards the outside of the machine.
The belt conveyor installed inside the pulse threshing machine is installed so that it slopes upward in the direction of conveyance, so that the beans mixed in the threshing residue being conveyed roll and flow down in the opposite direction to the conveyance direction. At the same time, by connecting the air outlet of the Karachi blower to the top side of the belt conveyor so that the discharge air blows in the conveying direction of the conveyor, the belt conveyor can carry out the removal of threshing residue and separate and air-sort the beans. When this process is made possible, the threshing residue that is entangled and clumped together, as well as items that can easily roll, such as husks within the residue, roll down along with the beans to the starting end of the belt conveyor in the conveying direction. To solve the problem that a large amount of waste is mixed into beans taken out from the starting end of a conveyor.

In order to achieve this purpose, the device of the present invention, as described above, carries out sorting processing at the top of the starting end in the conveying direction of the belt conveyor, which is installed in the pulse threshing machine so as to be inclined upwardly toward the conveying direction. A comb-shaped screen in which a large number of tooth rods are arranged side by side with a width that allows a single grain of legumes to pass through is hung vertically across the upper surface of the belt conveyor. When chunks of threshing residue, husks, etc. fall down, they are blocked by this screen and exposed to the air discharged from the Karachi blower, which has an air outlet connected to the top of the belt conveyor. By the discharge air and the rotation of the belt conveyor, these residues are carried out again in the conveying direction of the belt conveyor, effectively preventing a large amount of debris from being mixed in with the beans taken out from the starting end of the belt conveyor. It is characterized by the following.

Next, an example of implementation will be explained in detail according to the drawings.
In the figure, 1 is the body of the pulse threshing machine A shaped like a machine casing, and 2 is the threshing chamber installed in the inner cavity of the machine body 1, on the front end side of the upper part of the inner cavity of the machine body 1 (the left end side in the figure). The front side is equipped with a receiving port 21 that accepts the whole grain culm of the legumes to be threshed, and the rear side is equipped with a receiving port 21 for receiving the entire grain culm of the legumes to be threshed, and the rear side is equipped with a receiving port 21 for receiving the whole grain culm of the legumes to be threshed, and the rear side is equipped with a receiving port 21 for receiving the whole grain culm of the legumes to be threshed. A dust exhaust port 24 is provided for discharging crushed waste etc. from the grain threshing chamber 2, and a threshing cylinder 22 for handling and dropping beans from the grain culm introduced through the receiving port 21 is located inside, in the direction of the arrow in FIG. The chamber 2 is horizontally supported by a shaft so as to be driven and rotated, and the peripheral wall surrounding the lower side of the chamber 2 is used to sieve the legumes that have been handled and dropped from the grain culms by the threshing cylinder 22 from the stem culms, etc., and to prevent them from leaking through a sieve plate 23. It has a shape.

3 is the dust exhaust port on the rear side of the inner cavity of the machine body 1 so that the threshing residue discharged from the dust exhaust port 24 of the threshing chamber 2 is conveyed toward the discharge port 10 provided on the rear side of the machine body 1. A belt conveyor is stretched from below the opening 24 to the discharge opening 10, and a bell l-30 of high frictional resistance, such as rubber or cloth, is attached to rolls 31 and 32 that are mounted on the machine body 1.
The transport surface 30a of the transport surface 30a is stretched endlessly so that it slopes upward toward the rear of the aircraft 1, and the transport surface 3
0a is driven to rotate in an upwardly inclined direction.

In order to sort out the beans leaking from the sieve plate 23 (receiving net) of the deflow chamber 2 by using the starting end of the belt conveyor 3 in the conveying direction, the sieve plate 4 is tilted rearward below the sieve plate 23. It is a grain board that can be placed on a shelf, and its descending end faces the upper surface of the starting end side of the belt conveyor 3.

a is a sorting air passage that can be guarded by using the space formed above the upper surface of the belt conveyor 3;
is disposed below the particle removal chamber 2 so that the discharge air blown from the air outlet 51 blows out from the front to the rear of the inner cavity of the machine body 1, and the air outlet 51 is connected to the belt By facing the upper surface of the starting end of the conveyor 3 in the conveying direction, the discharge air blown from the air outlet 51 of the blower 5 is installed on the rear surface of the machine body 1 along the upper surface of the belt conveyor 3 as shown by the arrow W as a sorting air. The threshing residue is supplied to the top surface of the belt conveyor 3 and carried out, as well as the bean grains flowing down the top surface of the belt conveyor 3 in the opposite direction toward the starting end. It is designed to be selected by wind.

Reference numeral 6 denotes a screen vertically disposed above the upper surface of the starting end of the belt conveyor 3, which allows the airframe 1 to cross the aforementioned screening air path a above the starting end of the conveyor 3.
As shown in FIG. 3, a large number of toothed rods 61 in the shape of as thin a rod as possible are attached to a support frame 60 that is supported (or fixedly installed) on the machine walls on both the left and right sides of the machine. ... are vertically arranged in parallel in the left-right direction with an interval width d through which the single grains of beans to be sorted pass through, and the lower ends of the teeth rods 61 are connected to the belt 30 of the belt conveyor 3. By contacting the outer surface of the rotating part on the starting end side, the lower ends of the aligned tooth rods 61... are brought into sliding contact with the conveyance surface 30a of the belt 30 of the belt conveyor 3,
It is installed so as to cross above the starting end of the belt conveyor 3.

In the illustrated embodiment, 7 is the dust exhaust port 24.
From the vicinity of the lower edge 24a of the dust outlet 24, cross the middle part of the sorting air path a, so that the threshing residue discharged from the dust outlet 24 is loosened and supplied to the upper surface of the belt conveyor 3. A swinging sieve is installed so as to project downwardly toward the upper surface of the screen, and is mounted via an appropriate swinging mechanism so that the projecting end side of the sieve swings back and forth up and down. It is installed in a position below the front of the starting end of the belt conveyor 3 in the conveying direction so that it can be attached to and detached from the machine frame 1 in order to take out the grains that are sorted by the sorting wind that passes through a and fall from the lower end of the belt conveyor 3. This is a storage box for beans.

Further, reference numeral 90 denotes a supply gutter provided in front of the receiving port 21 to supply the grain culm M of the beans to be threshed into the threshing chamber 2;
0 and supply rolls 91 and 92, which are disposed on parallel shafts as a pair facing each other in front of the receiving port 21, form the supply device 9.

Next, to explain the function and effect, the sorting device in the pulse threshing machine according to the present invention has a belt conveyor 3 for carrying out the dust (thresh residue) discharged from the dust outlet 24 of the threshing chamber 2 to the outside of the machine. are installed so as to be tilted upward in the conveying direction, and the upper surface of the conveyor 3 is connected to the sorting air path a.
By combining it with Karaki blower 5 so that the floor surface is
At the same time as the waste is carried out, when a sorting belt is used to wind-sort the beans while taking out the beans from the waste, a single particle of the beans to be sorted is removed above the starting end of the belt conveyor 3. A large number of tooth rods 61...
Since a comb-shaped screen 6 in which grains are aligned from side to side is vertically disposed across the upper surface of the starting end of the conveyor 3, the threshing residue discharged from the dust outlet 24 is removed from the belt conveyor 3. The starting end of the belt conveyor 3 may be caused by falling in lumps on the upper surface, or by rolling downward on the upper surface of the belt conveyor 3 due to the force of the shells that are easy to roll being discharged onto the upper surface of the belt conveyor 3. When threshing residue flows down to the side, the comb-shaped screen 6 catches the threshing residue, and if the threshing residue is intertwined and clumped, the threshing residue is caught at a position close to the air outlet 51. The casings are loosened and transported in the direction of rotation of the belt 30 by the strong discharge air blown from the belt 30 and the rotation of the belt 30, and the shells are conveyed by the belt 30 while settling on the upper surface of the bell l-30. Therefore, the state of wind selection of the beans taken out from the starting end of the belt conveyor 3 is improved.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of a pulse threshing machine in which the present invention can be implemented, FIG. 2 is a cross-sectional plan view of the same, and FIG. 3 is a perspective view of the main parts. Explanation of drawing symbols, 1... fuselage, 2... threshing chamber, 24
...dust exhaust port, 3...belt conveyor, 30...belt, 4...grain board, 5...karawine blower, 51.
...Air outlet, 6...Screen, 61...Tooth rod, 7
. . . Oscillating sieve, 8 . . . Storage box, 9 . . . Supply device.

Claims (1)

[Scope of utility model registration request] At the front end of the upper part of the inner cavity of the machine frame 1 shaped like a machine casing, a sloughing chamber 2 having a reception port 21 on the front side and a dust exhaust port 24 on the rear side is installed. A threshing cylinder 22 is horizontally supported in the chamber 2, and at the rear of the threshing chamber 2 in the inner cavity of the machine frame 1, the threshing residue discharged from the culm discharge port 24 is sent to the discharge port 10 on the rear surface of the machine frame 1. The belt conveyor 3 that rotates to carry out the conveyance is tilted upward in the conveyance direction and stretched, and discharge air is blown from the front of the machine body 1 toward the rear on the upper surface of the starting end of the belt conveyor 3 in the conveyance direction. The air outlet 51 of the Karachi blower 5 installed below the grain removal chamber 2
The upper surface side of the belt conveyor 3 is formed into a sorting air path a, and the single grains of beans to be sorted are placed above the starting end of the belt conveyor 3, which is the starting end of the sorting air path a. A large number of tooth rods 61 and 61 have a width that allows the teeth to pass through.
A sorting device for a pulse threshing machine, characterized in that a comb-shaped screen 6 in which .