JPH02307538A - Foreign matter removing apparatus of rice milling machine - Google Patents

Abstract

PURPOSE:To easily remove foreign matter by providing a receiving net receiving foreign matter to a throw-out frame and providing a receiving surface so as to be capable of revolving and changing over the same to a throw-out posture. CONSTITUTION:The unpolished rice from a charge hopper 8 is horizontally transferred by a supply screw 16 and charged in a stone extracting lifter 9. The unpolished rice discharged from the upper part of a lifter 9 enters a stone extracting machine and receives shaking and winnowing treatment to remove the foreign matter in the unpolished rice. The unpolished rice and large diameter foreign matter from the lower part of a sorting net 20 are supplied to a rice polishing lifter 11 to be lifted and supplied to an unhulled rice tank 30 through the throw-out part 31a and funnel part 31b of a throw-out frame 31 and a chute cylinder 32. After the completion of one rice polishing work, a handle 39 is operated to change over a receiving net 33 to an erected posture and the foreign matter accumulated on the receiving net 33 is discharged to a foreign matter throw-out space 35 by reversal action. By this method, the removal of foreign matter can be easily performed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a foreign matter removal device for a rice milling machine, etc., and is installed in a lifting machine for feeding a stone removing machine during a rice milling process, a lifting machine for feeding a rice milling machine, etc. .

[Problem A to be Solved by the Prior Art and the Invention] If large diameter and hard foreign objects such as stones or nails are mixed in the brown rice supplied to the rice milling machine, the polishing net is likely to be damaged.

However, it has been difficult to remove these foreign substances using only the above-mentioned stone removing machine.

[Means to solve the problem]

This invention attempts to solve the above-mentioned drawbacks, and provides a throwing frame 31 of an elevator 9 or 11 for frying brown rice to be polished.
A receiving net 33 is provided to catch large diameter foreign objects from leaking brown rice,
Foreign matter in a rice mill, etc., in which the receiving surface is rotatably switchable from an inclined receiving posture to an upright throwing posture, and a throwing space 35 is formed between this standing receiving surface and a discharge port 36 to the outside of the machine. This is the configuration of the removal device.

[Operation and effect of the invention]

The brown rice and the foreign matter mixed therein are supplied to the elevator 11 and lifted up, and flow down to the next processing device via a dumping section or the like. At this time, the receiving net is in a receiving position and receives the brown rice thrown out from the packet of the elevator, causing the brown rice to leak out. At this time, the foreign matter remains on this receiving surface and is gradually deposited on the lower side of the slope.

After finishing rice milling work or in the middle of the work.

Operate the handle, etc. to switch the receiving net to the upright position.

The foreign matter accumulated on the receiving net surface is thrown into the foreign matter throwing space by the reversal action, and is collected into the receiving box through the discharge port.

When the foreign matter is caught in the receiving net, the foreign matter is deposited in the area below the position where the main flow of the thrown brown rice collides with the receiving net, so that it does not interfere with the continued passage of the brown rice.

〔Example〕

An embodiment of this invention will be described based on the drawings.

Reference numeral 1 denotes a building in which an unmanned rice milling facility is installed, and the interior thereof is divided by a partition wall 2 into an operation room, 3, and a machine room 4.

Among these, the operation room 3 side has a brown rice input section 5, an operation panel 6, a polished rice take-out section 7, etc., and the machine room 3 side has a charging conduit 381, a stone removal elevator 91, a stone removal machine 10. Rice milling elevator 11, rice milling machine 12
, a bran processing section 13, etc.

The brown rice input section 5 has a brown rice stand 15 on the operation room 3 side before and after the opening 14 of the partition wall 2.
A feeder hopper 8 is provided on each side, and a feeder 17 having a feeder spiral 16 is provided below the hopper 8, and the shaft of the spiral 16 is rotatably interlocked with a drive motor 18 at one end.

The transfer end side of the supply gutter 17 is exposed to the hopper portion of the stone removing elevator 9, and the stone removing machine 10 is positioned below the hopper on the upper side of the stone removing elevator 9. This stone removing machine 10 has an inclined sorting screen 20. The fan 21 consists of a swinging mechanism 22, etc., and as the drive motor 23 rotates, the sorting net 20 swings in the direction of inclination and raises air to shake foreign matter (stones, metal pieces, etc.) mixed in the brown rice to the upper side of the inclination. The brown rice flows downward to exit 24.
It is configured so that it can be discharged from Note that the foreign matter discharge shutter 25 provided on the upper side of the sorting net 20 is normally kept "closed" by a spring 26.
hold the state and send the work end signal (for example, the supply spiral 1
A forward/reverse opening/closing motor 27 that rotates forward in response to a stop signal (6 stop signal)
becomes “open”.

28.29 is the limit switch for setting the limit operation.

It is possible to set the rotation limit of the opening/closing motor 27, which rotates in reverse after maintaining the "R OPEN" state for a short period of time (for example, 5 seconds).

The hopper of the rice milling machine 11 is visible below the brown rice outlet 24, and the brown rice tank 3 of the rice milling machine 12 is located below the upper tank.
Look at 0.

A dumping frame 31 is connected to the upper part of this rice polishing elevator 11, and is configured to communicate with a brown rice tank 30 via a box-shaped dumping section 31a, a funnel section 31b, and a chute tube 32 connected thereto. Inside the throwing frame 31, there is provided a receiving net 33 which is shaped like a plate and has a mesh size that allows brown rice to leak therethrough, and is rotatable around a support shaft 34. The receiving net 33 has two positions: one in a receiving position where the receiving surface is in an inclined state (angle α) at the lower part of the throwing-out flow of brown rice, and the other in an upright position where the upper side is in contact with the inner wall surface of the throwing part 31a. You can change the posture by rotating around the center. A part of the side wall of the throwing part 31a is formed to bulge outward to form a space 35 for throwing out foreign matter.
The lower side is configured to be formed as a discharge port 36.

37 is a guide chute that is provided integrally with the receiving net 33 and also serves as a cover for the discharge port 36. When the receiving net 33 is in the above-mentioned position, it functions as a cover for the discharge port 36, and in the upright position, a guide chute that can be attached or removed at the bottom is provided. It is configured so that it can be viewed into the receiving box 38. 39 is a handle for rotating the receiver w433 and the guide chute 37 about the support shaft 34.

This rice milling machine 12 has a known configuration in which a milling roll 41 is installed in a milling chamber 40, and the separated bran from the bran removal screen 42 is conveyed to the bran processing section 13 by a bran conveying fan 43. Reference numeral 44 denotes a rice milling machine motor that rotates and interlocks the polishing roll 41, bran conveying fan 43, and the like. The outlet side of the whitening chamber 40 communicates with a white rice tank 45 serving as a white rice take-out section 7. 4
Reference numeral 6 denotes a fan that blows air into the whitening room 40.

The bran processing section 13 has a cyclone 47 and a cyclone 4.
7. Rice bran transfer spiral 4 that horizontally transports the rice bran that has fallen down to the bottom.
8 gutter 49, and rice bran bags 50, 50 for receiving rice bran falling from a discharge section opened at the middle and end of the spiral gutter 49.

The operation panel 6 on the side of the operation room 3 has a brown rice charging tube lamp 51 on its panel surface. Coin number indicator 52, coin mech 53.
Sticky rice button 54, white melon selection (in the example, white, standard,
buttons 55, 56, 57, etc., which can be selected in 3/8 steps, are provided, and among these, the coin mech 53 is equipped with an input coin identification section and a coin sensor (not shown) that operates for each input coin. . The operation panel 6 is equipped with a microcomputer for controlling the drive motors of various parts.

Explaining the function of the upper side. In advance, insert enough coins into the slot of the coin mech 53 to secure the operating time corresponding to the amount of raw brown rice, and
This brown rice is supplied to the input hopper 8. Each part of the apparatus starts operating at the same time as a coin is inserted, and the brown rice from the input hopper 8 is horizontally transferred by the supply spiral 16 and input into the stone removal elevator 9. The unpolished rice discharged from the upper part of the elevator 9 enters a destoner 10 and is subjected to rocking or air separation treatment to remove any foreign matter contained therein. At this time, stones with large specific gravity sink to the lower layer of brown rice and try to move to the upper side of the slope by the shaking action of the sorting plate, but foreign objects with large diameters, such as large stones and nails, remain in the upper layer of brown rice and are not sorted. It will move to the lower side of the slope along with brown rice on the board.

The brown rice and large-diameter foreign matter from below the sorting net 20 are supplied to the rice polishing elevator 11, lifted up, and supplied into the brown rice tank 30 via the throwing part 31a of the throwing frame 31, the funnel part 31b, and the chute tube 32. It will be done. On this occasion,
The receiving net 33 is placed in a receiving position by the handle 39, receives the brown rice thrown out from the packet of the elevator 11, and causes the brown rice to leak out, but the foreign matter with a large diameter remains on this receiving surface and is gradually deposited on the lower side of the slope. It is something that

The brown rice from which foreign substances have been removed flows down into the hopper and into the whitening chamber 40 of the rice milling machine 12, where the surface bran layer is peeled off between the grains or between the bran removal screens 42 due to the rotation of the whitening roll 41, and the brown rice is polished. be done. At this time, the pressure plate at the outlet is set to a desired pressure using the polishing selection button, and the polishing is finished to the desired degree of polishing. The polished rice from the whitening chamber 40 passes through the polished rice take-out section 7 and is appropriately collected in the operation chamber 3. Each part of the operation will stop after the time set by the input amount has elapsed. - When one rice milling operation is completed in this way, the handle 39 is operated to switch the receiving net 33 to the upright position.

The foreign matter accumulated on the surface of the receiving net 33 is thrown into the foreign matter throwing space 35 by the reversal action, and is sent to the receiving box 38 through the discharge port 36.
will be collected within. Since the receiving box 38 is removable, when it becomes full, it can be removed and disposed of as appropriate.

In this embodiment, the receiving net 33 is rotated by the handle 39, but as shown in FIG. Alternatively, as shown in FIG. 10, the opening and closing of the foreign matter discharge port provided on the inclined upper side of the sorting board 20 of the stone removing machine 10 may be adopted.

In this embodiment, the receiving net 33 is provided at the exit of the rice milling elevator 11 for sending brown rice to the rice milling machine 12, but it may be provided on the side of the destoning elevator 9 leading to the destoning machine 10.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is an overall plan view, Fig. 2 is a schematic flow diagram of the device, Fig. 3 is a cross-sectional view of the stone removal machine, and Fig. 4 is a plan view of a part thereof. Figure 5 is a sectional view of the rice polishing machine, Figure 6 is a front view of the operation panel, Figure 7 is a sectional view of the main parts, Figure 8 is a perspective view thereof, and Figure 9 shows another embodiment. 10 are diagrams showing still another embodiment. In the figure, 9 is a stone removal elevator, 11 is a rice polishing elevator, 12 is a rice polishing machine, 31 is a throwing frame, 31a is a throwing part, 31b is a funnel part, 32 is a chute tube, 33 is a receiving net, 34 is a spindle,
35 is a throwing space, 36 is a discharge port, 37 is a guide chute, and 38 is a receiving box. 39 indicates a handle.

Claims (1)

[Claims] (1) Elevator 9 or 11 that lifts brown rice to be polished
A receiving net 33 is provided in the throwing frame 31 to catch large-diameter foreign objects from leaking brown rice, and the receiving surface thereof is provided so as to be rotatable from an inclined receiving position to an upright throwing position. A throwing space 35 between the outlet 36 and the outlet 36 to the outside.
Foreign matter removal equipment such as rice milling machines formed by forming.