JP2875314B2 - Discharge device of circulation type vertical rice mill - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a circulation type vertical milling machine, and more particularly, to a discharge device of a circulation type vertical milling machine.

[Conventional technology]

The present inventors have previously proposed a resistance adjusting device for a circulation type vertical milling machine (Japanese Patent Application No. 1-254985). The discharge device for discharging the polished rice out of the machine, which is shown there, engages a rack attached to a shutter for opening and closing the discharge port with a pinion on which a forward and reverse rotation motor shaft is mounted, and discharges the rice. Is connected to a discharge gutter.

However, the above-described discharge device of the circulation type vertical milling machine requires a forward / reverse rotation motor, a rack, a pinion, and the like, and the discharge device is complicated and expensive, and the opening and closing speed of the discharge port is slow. there were.

[Problems to be solved by the invention]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and to provide a discharge device for a circulation type vertical milling machine in which the structure of the discharge opening / closing device is simple and the discharge opening / closing speed is fast. Make it an issue.

[Means for solving the problem]

The present invention provides, in a box machine frame having a rice tank, a main shaft on which a spiral trochanter is pivotally mounted by a motor so as to be rotatable, and connected to an upper end portion of the spiral trochanter to rotate a fine trochanter. A perforated wall bran milling cylinder is provided around the milling trochanter, and a supply port communicating with the rice tank is provided below the spiral trochanter, and a discharge port is provided at an upper end of the milling trochanter. A discharge path of the upper transfer device connected above the milling trochanter faces the rice tank to form a circulation path, and a discharge device is provided at a discharge port provided below the discharge port of the upper transfer device. In the circulation type vertical rice milling machine, a shutter for opening and closing the discharge port is provided, while a discharge gutter is rotatably mounted on an opening provided in the box body frame, and is linked with the rotation of the discharge gutter. The shutter and the discharge gutter are connected by a connecting rod so that the shutter opens and closes. It was, took the technical means that.

[Action]

The rice grains supplied to the tank are supplied to the spiral trochanter from the supply port, are pumped by the spiral trochanter, and are refined by the rotating action of the perforated rice bran refining cylinder and the refined trochanter. The refined rice grains are transported upward by the upper conveying device, naturally flow down from the discharge port into the tank, and re-entered, and thereafter circulate in this process until a predetermined degree of refining is reached. When the discharge gutter is rotated, the shutter is opened in conjunction therewith, and the refined rice grains flow down the discharge gutter from the discharge port and are discharged out of the machine. Further, by rotating the discharge gutter in the opposite direction, the shutter is closed in conjunction therewith.

(Example of the invention)

 Embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a circulation type vertical rice milling machine embodying the present invention, FIGS. 2 and 3 are enlarged views of the discharging device in FIG. 1, and FIG. FIG. 5 is an enlarged vertical sectional view of the same part.

Reference numeral 1 denotes a whole circulation type vertical rice milling machine, in which a spiral rotator 4 is mounted on a hollow main shaft 3 rotatably provided in an upright perforated rice bran milling cylinder 2, and the helical rolling mill is used. The friction whitening trochanters 6 having the stirring projections 5 connected to the upper ends of the vibrators 4 are axially mounted respectively. As a result, a refining chamber 7 having the perforated wall removing rice bran refining cylinder 2 and the friction refining trochanter 6 as main parts is formed. .

Reference numeral 10 denotes a rice tank provided near the upper portion of the box body frame 11, and a bottom plate 12 thereunder is formed in a hopper shape and is connected to the supply port 8 via a supply gutter 13. A small-diameter pulley 16 of a motor pulley of a motor 15 fixed to a motor base 14 and a passive pulley 17 mounted on the lower end of the main shaft 3 are connected by a V-belt 18. The large-diameter pulley 19 of the motor pulley 16 and the fan pulley (not shown) of the bran removing fan 20 are connected by a V-belt (not shown). Cyclone dust collector 23 is communicated via 22. Reference numeral 24 denotes an intake port at the lower end of the hollow portion of the main shaft 3, and reference numeral 25 denotes a groove-shaped blowing port provided on the frictional whitening trochanter 6, and a bran removing chamber 26 formed around the perforated fine rice bran polishing cylinder 2 is a flexible pipe. The suction port of the bran removing fan 20 is communicated via 27.

Reference numeral 28 denotes an upper transfer device, and a spiral body 30 is provided in a transfer tube 29 which is connected to the upper end edge of the perforated wall removing rice bran polishing tube 2 and stands upright.
A screw conveyor shaft 31 is set up by winding the shaft, and the lower end of the conveyor shaft 31 is connected to the upper end of the friction fine trochanter 6 while the upper end of the conveyor shaft 31 is connected to a bearing 32 at the upper end of the transfer cylinder 29. Backed by.

The discharge port 33 provided on the peripheral surface of the upper end portion of the upper transfer device 28 faces the tank 10 and is scraped to the upper end of the conveyor shaft 31 (a rake).
Attach the feather 34. Reference numeral 35 denotes a discharge device, which opens a discharge port 36 on the peripheral surface of the transport cylinder 29 below the discharge port 33,
A shutter 37 for opening and closing the discharge port 36 is provided, and a downflow gutter 38 protrudes from the discharge port 36. On the other hand, a discharge gutter 39 is rotatably mounted on an opening provided in the box body frame 11 by a fulcrum shaft 43, and the discharge gutter 39 and the shutter 37 are connected by a connecting rod 40. The connecting rod 40 is connected to the shutter 37.
And are supported by support tables 41 and 42 provided on the discharge gutter 39, and the discharge gutter 3
The shutter 37 is formed so as to open and close as the 9 rotates. Reference numeral 44 denotes a guide plate provided on both sides of the discharge gutter 39.

Reference numeral 45 denotes a resistance adjusting device provided above the white rice discharge port 9 (see FIGS. 4 and 5), which is screwed to a drive shaft 47 of a forward / reverse rotation motor 46 fixed to the peripheral wall of the transport cylinder 29. ) 48 are connected and fixed with the stopper 49. A connecting plate 51 is attached to a nut 50 screwed to the screw rod 48, and a pair of round bar-shaped resistors 52, 52, each of which has a distal end facing the inside of the transport cylinder 29, are fixed to both sides of the connecting plate 48. The resistors 52, 52 are formed so as to freely move in and out of the transport cylinder 29 in the horizontal direction with the conveyor shaft 31 interposed therebetween by the forward / reverse rotation of the forward / reverse rotation motor 46 to adjust the degree of whiteness.

Reference numeral 53 denotes a rice tank lid (lid) provided with a small hole through which rice grains pass or formed in a lattice shape.
To supply rice grains into the rice tank 10. The rice tank lid 53
It serves as a protective cover for preventing a contact accident such as a finger caused by the scraping blade 34 caused by the discharge port 33 being widely opened when supplying rice grains.

Next, the operation of the above configuration will be described. Motor 15
Is driven, the brown rice in the rice tank 10 flows down the bottom plate 12 and is sent from the supply gutter 13 to the spiral trochanter 4 through the supply port 8. The brown rice is transported by the spiral trochanter 4 to the refining chamber 7 and is refined by the refining action caused by the rotation of the frictional trochanter 6. Then, the bran removing operation is performed by the bran removing wind that is sucked from the air inlet 24 by the bran removing fan 20 and blows out from the blowing port 25. Dust such as bran generated by the refining action in the refining chamber 7 is discharged to the bran removing chamber 26 through the through hole of the perforated wall removing bran refining cylinder 2 and the flexible pipe 27 removes the bran removing fan 20 and the bran outlet. It is sent to the cyclone dust collecting device 23 through the 21 and the drainage pipe 22 and collected.

The polished rice grains reach the white rice outlet 9 and the resisters 52,5
The outflow is suppressed against the resistors 52, 52 while the outflow is suppressed by 2. Then, the rice grains are transported upward in the transport cylinder 29 of the upper transport device 28 by the spiral body 30 of the conveyor shaft 31, and the white rice reaching the upper end portion is promoted to be discharged by the scraping blades 40,
The water is returned to the tank 10 again by the natural flow from the discharge port 33, and circulates through the whitening chamber 7 and the rice tank 10 until a predetermined whiteness degree is reached.

The adjustment of the degree of milling is performed by the resistance adjusting device 45 (FIG. 4,
(See FIG. 5). That is, when no resistance is applied to the rice grains (the degree of whiteness is small), the resistors 52, 52 are at the positions indicated by the solid lines. During this time, the resistors 52 are moved to appropriate positions to adjust the degree of milling. When increasing the degree of milling, when the forward / reverse rotation motor 46 is rotated forward, the rotating shaft 47 and the screw rod 48 rotate forward, and the nut 50 is moved forward, and the nut 50 is moved forward, so that the nut 50 is attached to the connecting plate 51. Resistor 5
2, 52 are advanced and moved forward in the transport cylinder 29 to increase the resistance area. To reduce the degree of whitening, the forward / reverse rotation motor 46 is rotated in the reverse direction to retract the resistors 52
In the direction to reduce the resistance area. The adjustment of the degree of milling may be performed manually by selecting a push button (not shown). However, for automation, the load current of the motor 15 is detected and compared with the set current value so as to be equal to the set current value. It can be adjusted by attaching a sensor such as a whiteness sensor (not shown) or the like, and electrically connecting the sensor and the forward / reverse rotation motor 46.

Then, the rice grains that have been milled to a predetermined milling degree are discharged.
It is discharged by operating 35 (see FIGS. 2 and 3). That is, when the discharge gutter 39 is pulled forward and protrudes out of the machine, the discharge gutter 39 rotates around the fulcrum shaft 43,
In conjunction with this, the connecting rod 40 is pushed upward. By pushing up, the shutter 37 moves upward to open the discharge port 36 (see FIG. 3), and the refined rice grains flow down the discharge gutter 38 and the discharge gutter 39 from the discharge port 36 and are discharged outside the machine. Further, when the discharge gutter 39 is pushed in the inward direction of the box body frame 11, the discharge gutter 39 rotates about the fulcrum shaft 43, and the connecting
Is pulled down. By lowering the shutter 37, the shutter 37 moves downward, and the discharge port 36 is closed (see FIG. 2).

〔effect〕

According to the discharge device of the circulation type vertical milling machine of the present invention, a device such as a forward / reverse rotation motor, a rack, and a pinion is configured by opening and closing a shutter of a discharge port in conjunction with rotation of a discharge gutter of the discharge device. Is not required, the configuration can be made extremely simple, and the cost can be reduced accordingly. Further, the opening and closing of the shutter can be performed in a very short time by rotating the discharge gutter, which is suitable for sampling of sampled rice during rice polishing.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a circulation type vertical rice milling machine embodying the present invention, FIGS. 2 and 3 are enlarged views of a discharge device in FIG. 1, and FIG. FIG. 5 is an enlarged vertical cross-sectional view of the same. 1 ... Circulation type vertical milling machine, 2 ... Branched rice bran polishing tube, 3 ...
Main shaft, 4 ... spiral rotator, 5: stirring protrusion, 6: frictional whitening trochanter, 7: whitening chamber, 8 ... supply port, 9 ... white rice discharge port, 10 ... rice tank, 11 ... box machine frame, 12 ... Bottom plate, 13 ... Supply gutter, 14 ... Motor base, 15 ... Motor, 16 ... Small diameter pulley, 17 ...
Passive pulley, 18 ... V belt, 19 ... Large diameter pulley, 20
... Bran removal fan, 21 ... Bran discharge port, 22 ... Bran discharge pipe, 23 ... Cyclone dust collector, 24 ... Suction port, 25 ... Blast port, 26 ... Bran removal chamber,
27… Flexible pipe, 29… Transport cylinder, 30… Helical body, 31
... Screw conveyor shaft, 32 ... Bearing, 33 ... Discharge port, 34 ...
Scraping blades, 35 discharge device, 36 discharge port, 37 shutter, 38 downflow gutter, 39 discharge gutter, 40 connecting rod, 41, 42 support base, 43 fulcrum shaft, 44 guide plate, 45 ... resistance adjustment device, 46
... forward and reverse motor, 47 ... rotating shaft, 48 ... screw rod, 49 ... stopper, 50 ... nut, 51 ... connecting plate, 52 ... resistor, 53 ... rice tank lid.

Claims (1)

(57) [Claims] 1. A main shaft on which a spiral rotator is mounted is rotatably mounted by an electric motor in a box machine frame provided with a rice tank, and connected to an upper end of the spiral rotator to form a fine trochanter. A perforated wall bran milling cylinder is provided around the milling trochanter and the milling trochanter is provided.A supply port communicating with the rice tank is provided at a lower portion of the spiral trochanter, and a discharge port is provided at an upper end portion of the milling trochanter. A discharge path of the upper transfer device, which is located above the milling trochanter, and faces the rice tank to form a circulation path, and is discharged to a discharge port provided below the discharge port of the upper transfer device. In the circulation type vertical milling machine connected with the apparatus, a shutter for opening and closing the discharge port is provided, and a discharge gutter is rotatably mounted on an opening provided in the box body frame, and the discharge gutter is rotated. The shutter and the discharge gutter are connected by a connecting rod so that the shutter opens and closes in conjunction with Discharge device for circulating vertical axis type rice milling machine, characterized in that the binding.