JPS6314941Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a gate valve structure in a sorting barrel in a grain sorting machine.

That is, a receiving gutter in which a transport conveyor is mounted on a shaft is installed inside a pot-hole type rotary sorting cylinder, and the base of a gate valve that extends obliquely from the side of the receiving gutter toward the inner circumference of the cylinder is centered on the support shaft. In a grain sorting machine configured to be rotatably adjustable, conventionally, as shown in FIG. The gate valve 4 was rotatably adjusted at the center to adjust the sorting accuracy as well as change the rotation speed of the sorting cylinder A. However, as the gate valve 4 rotates as shown by the arrow B, the The distance between the tip of the gate valve 4 and the inner circumferential surface of the barrel changes as shown by the dots in the figure, so that the brown rice that is received into the receiving gutter 3 side is changed from the distance as shown by the arrow C. The state, that is, the state in which paddy is partitioned by the gate valve 4, changes, causing poor sorting performance.

The present invention solves this drawback, and even if the rotation of the gate valve is adjusted, the gap between the tip side of the gate valve and the inner peripheral surface of the cylinder does not change at all times, making it possible to further improve the sorting accuracy and make it suitable for use. It is provided so that it can be implemented.

Next, the embodiment shown in the drawings will be described.

In FIGS. 2 to 4, a conveyor 2 is installed inside a receiving gutter 3 built in a rotary sorting cylinder A having a large number of pot holes 1 on the inner circumferential surface, and a support shaft is installed on the side of the receiving gutter 3. The gate valve 4a is rotatably installed around the valve 5, and is constructed in the same manner as the conventional structure.
The gate valve 4a is formed to be shorter than the conventional type, and a tip plate 4b is provided on the upper surface of the gate valve 4a to perform a partition function together with the gate valve 4a.
The distal end plate 4b is arranged such that the distal end A of the distal end plate 4b extends close to the inner circumferential surface of the rotary sorting cylinder A and is slidable relative to the gate valve 4a.

The bases of arms 8 that protrude forward from the tip A are fixed to the lower surfaces of both ends of the tip plate 4b, and the bases of the arms 8 that protrude forward by a certain length from the tip A are attached to the inner circumferential surface of the sorting barrel A. A support tube 11 is fixed with a supporting metal 10, with supporting rods 9 extending parallel to the tip plate 4b from the bases of both arms 8 parallel to the lower surface of the gate valve 4a. A compression spring-type bullet 7 is fitted inside the support cylinder 11 so as to be slidable therein, and a compression spring-type bullet 7 is installed inside the support cylinder 11 to abut against the end of the support rod 9 and press the roller 6 against the inner circumferential surface of the sorting cylinder A. Set and configure.

Therefore, each roller 6 that is pressed by the bullet 7 at both ends of the tip plate 4b comes into contact with the inner peripheral surface of the rotary sorting cylinder A, and the tip A of the tip plate 4b and the inner peripheral surface of the rotary sorting cylinder A contact each other. Even if the gate valve 4a and the tip plate 4b are rotated as shown by the imaginary line in FIG. 2 by rotating the support shaft 5, the gap C remains constant. It remains constant.

During operation, when the rotary sorting cylinder A rotates as shown by the arrow, the brown rice that engages with the pot hole 1 passes through the gap C and is lifted upward and received into the receiving trough 3. , paddy has tip plate 4
b and gate valve 4a, the grains are not raised upwards and remain in the rotary sorting cylinder A to be sorted. Gate valve 4a along with rotational speed change
Even if the rotation of the tip plate 4b is adjusted, the gap C between the tip A of the tip plate 4b and the inner peripheral surface of the rotary sorting cylinder A remains constant as described above, and sorting is performed. Become.

In this way, the present invention constructs a receiving gutter in which a transport conveyor is mounted on the shaft inside a pot-hole type rotary sorting cylinder, and a base of a gate valve that extends obliquely from the side of the receiving gutter toward the inner circumference of the cylinder. In the grain sorting machine, a tip plate is slidably superimposed on the upper surface of the gate valve, and a predetermined length extends forward from the tip of the tip plate. Rollers that protrude and come into contact with the inner peripheral surface of the cylinder are integrally connected to both ends of the tip plate, and the wheels are installed so that they are pressed against the inner peripheral surface of the cylinder by an elastic machine from the lower surface of the gate valve. Because of this structure, even if the gate valve is rotated in the same manner as before according to the condition of the grain, the gap between the tip of the gate valve and the inner peripheral surface of the barrel remains constant, which further improves sorting accuracy. It has the advantage that it can be improved and can be suitably implemented with a simple structure.

[Brief explanation of the drawing]

Fig. 1 shows a sectional view of a conventional example, Fig. 2 is a sectional view of the main part of an embodiment of the present invention, Fig. 3 is a plan sectional view of a part of Fig. A side sectional view of a portion of the figure is shown. A... Rotating sorting cylinder, 2... Conveyor conveyor, 3...
...Gutter, 4a...Gate valve, 4b...Tip plate, I...
... Tip, 5 ... Support shaft, 6 ... Rolling wheel, 7 ... Bullet machine.

Claims (1)

[Scope of utility model registration request] A receiving gutter 3 in which the transport conveyor 2 is mounted on the shaft is installed inside the pot-hole type rotary sorting cylinder A, and a gate valve 4a extends obliquely from the side of the receiving gutter 3 toward the inner circumference of the cylinder.
In the grain sorting machine, the base of the gate valve 4a is slidably superimposed on the upper surface of the gate valve 4a, and the tip of the end plate 4b is attached to the upper surface of the gate valve 4a. Rolling wheels 6, 6 that protrude forward by a certain length from A and contact the inner circumferential surface of the cylinder are integrally connected to both ends of the tip plate 4b, and the rolling wheels 6, 6 are connected from the lower surface side of the gate valve 4a. A gate valve structure in a sorting barrel of a grain sorting machine, characterized in that a bomb 7 is configured to apply pressure to the inner peripheral surface of the barrel.