JP2509573Y2 - Exhaust structure on the stone removing side of the stone extracting and selecting machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a discharging structure on a stone removing side in a stone extracting and selecting machine for separating and removing pebbles mixed in grains.

[Conventional technology]

Conventionally, as this type of discharging structure, a pebbles accumulating section narrower than the grain selecting section is used as the grain selecting section on the inclined upper part of the perforated grain selecting plate which is slantably supported vertically in the outer box so as to be reciprocally swingable. A door plate that opens and closes the discharge port is provided at the discharge port that is formed in a row and that is open at the rear end of the pebbles accumulation portion.

[Problems to be solved by the device]

By the way, the grains on the porous grain selecting plate are discharged downward while being gravity-sorted by the swing and the air from the blower arranged below the porous grain selecting plate, and the pebbles mixed in the grain are
It is separated from the grain and stays in the upper stack with a small amount of grain.

After removing a certain amount or during the process of removing pebbles that have accumulated in this stacking part, grains are continuously stacked up to the stacking part on the multi-layered grain selection plate, and with reciprocating rocking. The air blown from below blows toward the upper part of the slant of the porous grain selection plate, so if you open the door plate and open the discharge port under this condition, small stones and a small amount of accumulated stones will accumulate. Not only the grains but also the grains on the perforated grain selection plate are discharged in a large amount from the discharge port, so that there is a problem that the desired sorting function cannot be sufficiently fulfilled.

Therefore, the present invention has been made based on the above circumstances, and it is possible to remove only the pebbles and a small amount of grain accumulated in the accumulating portion, and to fully exert the sorting function of the stone removing grain selecting machine. The purpose is to provide a discharge structure.

[Means for solving the problem]

The present invention for achieving the above object supports a multi-layered grain selection plate that swings back and forth diagonally up and down, with one stone removing side being high and the other grain removing side being inclined low in an outer box body, A fan is installed in the body to ventilate the porous grain selection plate from below.
A discharge port is formed in the pebbles accumulation part provided on the stone removing side, and when the discharge port is closed, the accumulation part communicates with the grain selection part on the porous grain selection plate, and when the discharge port is opened, the accumulation part is on the porous grain selection plate. A gate bent so as to block the grain selection unit is rotatably attached in the vicinity of the discharge port.

〔Example〕

FIG. 1 shows an example of a stone removing and grain selecting machine to which the stone removing side discharging structure of the present invention is applied. Inside the outer box body 2, one stone removing side is high and the other grain extracting side is low. A slanted porous grain selection plate 1 is swingably supported by rods 3 and 4, and a grain feeding hopper 5 is provided above the porous grain selection plate 1.
And the grain selection plate 1 is provided below the hopper 5.
A supply port 6 for supplying grains is opened, and a shutter 7 for adjusting the supply amount is attached to the supply port 6. Further, below the porous grain selection plate 1, a fan 8 that blows air through the porous grain selection plate 1 is arranged. Further, the porous grain selection plate 1 is connected to a crank 10 protruding from an eccentric shaft 9 via a mounting piece 11, and a belt 14 wound around an eccentric shaft pulley 12 and a rotary shaft pulley 13 of the fan 8 is driven by a motor 15 The fan 8 is rotated by the drive of the motor 15, and at the same time, the porous grain selection plate 1 is slanted vertically up and down.

Next, the discharge structure on the stone removing side of the present invention will be described.
On the stone removing side of the porous grain selection plate 1, a pebbles accumulating portion 1B having a width narrower than that of the grain selecting portion 1A is formed, and a discharge port 16 opening at the rear end of the pebbles accumulating portion 1B is provided. The upper pin 19 is attached to the shaft pin 18 erected above the side walls 17 and 17 near the discharge port 16.
A gate 22 having a front piece 20 and a rear piece 21 that bend downward from the front and rear ends of the upper piece is rotatably supported at the angle between the upper piece 19 and the rear piece 21. The upper piece 19 is adapted to cover the upper upper surface of the pebbles accumulating portion 1B which substantially matches the width and length of the pebbles accumulating portion 1B, and the front piece 20 matches the opening at the front end of the accumulating portion 1B. It is possible to get on and off from the upper piece 19 and intercept the stacking unit 1B from the grain selection unit 1A. Furthermore, the rear piece 21 is a gate
A step slightly lower than the pivot support position of 22 is provided to extend rearward along a direction parallel to the upper piece 19, and when the gate 22 is rotated, the rear piece 21 extending rearward is pebbled. The discharge port 16 is closed by coming into contact with the rear edge of the portion 1B. On this rear piece 21, an operating rod 23 for rotating the gate 22 is attached.

With the above-described configuration, the grain supplied from the supply port 6 of the hopper 5 onto the porous grain selection plate 1 is driven by the motor 15 to rotate the fan 8 to blow air from the lower side and the porous grain selection. Since the plate 1 swings up and down diagonally up and down, it is discharged from the lower grain extraction side while being sorted by specific gravity, while the pebbles mixed in the grain are separated from the grain and accumulated in the upper accumulation section 1B. Collect with a small amount of grain. At this time, gate 22
Is in a position in which the rear piece 21 is brought into contact with the rear end edge of the stacking section 1B to close the discharge port 16 and the front piece 20 is lifted upward. Therefore, the grain selection section 1A and the stacking section 1B are multi-pass selected. They are in communication with each other on the grain board 1. Next, when removing pebbles accumulated in the accumulating unit 1B, the gate 22 is rotated with the operating rod 23 until the front piece 20 abuts on the upper surface of the porous grain selection plate 1, and the accumulating unit 1B is raised. The piece 19 covers the upper part, the front piece 20 blocks the grain selection part 1A, and the discharge port 16 is opened at the rear end of the stacking part 1B. Therefore, the stacking unit 1B
Only pebbles and a small amount of grains accumulated in the outer box body 2 from the outlet 16 due to the swing of the grain selection plate 1 and the wind blown from below.
It is discharged outside.

[Effect of device]

Since the present invention is configured as described above, it has the following effects.

That is, when removing the pebbles that have accumulated in the stacking unit, the gate opens the outlet and at the same time blocks the stacking unit on the porous grain selection plate from the grain selection unit. It is possible to discharge only the small stones and a small amount of grains in the accumulating portion from the discharge port without mixing the grains of No. 1, and thus the selection function of the stone removing and selecting machine can be efficiently exhibited.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an example of a stone removing and selecting machine to which the discharging structure on the stone removing side of the present invention is applied, FIG. 2 is a vertical sectional view showing an essential part of the present invention, and FIG. It is a top view of a grain board. 1 ... Porous grain selection plate, 1A ... Grain selection part, 1B ... Pebble accumulation part,
2 ... Outer box, 8 ... Fan, 16 ... Discharge port, 22 ... Gate

Claims (1)

(57) [Scope of utility model registration request] 1. A perforated grain selection plate (1) is supported in an outer box body (2) so that one stone removing side is inclined higher and the other grain extraction side is inclined lower and reciprocally rocked vertically. A stone-extracting grain selecting machine in which a fan (8) for ventilating upwards from the bottom of the porous grain selecting plate (1) is arranged, and a discharge port (16) is formed in a pebbles accumulating portion (1B) provided on the stone removing side. Then, in the vicinity of the discharge port (16), select the upper piece (19) that covers the upper upper surface of the pebbles accumulation section 1B and the pebbles accumulation section (1B) hanging from the upper piece (19). A front piece (20) that opens and closes the grain part (1A) so that it can come into contact with the rear edge of the pebbles accumulation part (1B) that extends rearward from the rear end of the upper piece (19). A stone removing side discharge structure in a stone removing and grain selecting machine, wherein a rear piece (21) for opening and closing the outlet (16) and a gate (22) made up of are attached rotatably.