JPH08203B2 - Hulled rice polishing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hulled rice polishing machine for removing unhulled rice to brown rice or whitening brown rice to white rice.

[0002]

2. Description of the Related Art In a rice hulling machine, grain-filling parts may be clogged with miscellaneous substances, so that polishing work may not be performed, and a rice-polishing roll may idle. Therefore, in order to prevent this idle rotation, an automatic stop switch is provided on the outlet side of the polishing room.

This automatic stop device operates a switch for directly opening and closing the power source of an electric motor, or a circuit switch or the like with a connecting rod and a compression plate, and indirectly connects it to an electromagnetic switch to automatically operate a rice polishing machine. It's a stop.

[0004]

In the conventional hulled rice polishing machine, the automatic stopping device may be activated during hulling due to an operation error or the like, and the electric power of the electric motor may be turned off. If this happens, the removal fan will stop and become clogged, making it impossible to restart. Therefore, in order to restart, the removing device must be disassembled and cleaned, which causes a large loss in terms of time and labor.

Further, in the conventional hulled rice polishing machine, since the rice polishing work and the rice hulling work are started at the same time when the electric power of the electric motor is turned on, the starting torque becomes large. Therefore, a large horsepower electric motor, that is, a large-sized motor is required, and smooth operation cannot be performed with a small horsepower electric motor, that is, a small-sized motor.

In view of the above circumstances, an object of the present invention is to prevent the main motor from stopping during hulling work. Another purpose is to reduce the starting torque.

[0007]

SUMMARY OF THE INVENTION According to the present invention, an automatic stop switch is provided on the outlet side of a whitening chamber, a rice polishing switch for driving a main motor and a hulling switch are separately provided, and a power switch for controlling the switch is provided. A rice hulling rice polishing machine in which a lever is provided, and a tension pulley for rice polishing and a tension pulley for hulling are linked to the power switching lever, wherein the power switching lever operates the switch when the tension pulley is in an idle state, Further, a rice polishing switch and a hulling switch connected to the main motor are arranged in parallel, the rice polishing switch and an automatic stop switch are arranged in series, and the automatic stop switch and the changeover switch are arranged in parallel. It is intended to achieve the above object by a hulled rice polishing machine characterized by being provided.

[0008]

When the power switching lever is set to the main motor starting position, the hulling switch is turned on and the main motor is started. At this time, the tension pulley for hulling is in a play state,
The dehulling fan does not rotate because sufficient tension is not applied to the hulling belt.

Further, when the lever is moved to the operation starting position, the hulling tension pulley is interlocked to apply tension to the belt. Therefore, the take-off fan etc. rotate to start hulling.

After the hulling is completed, when the changeover switch is turned on to set the power changeover lever to the main motor starting position, the rice polishing switch is turned on and the main motor is started. At this time, since the rice polishing tension pulley is in an idle state, sufficient tension cannot be applied to the rice polishing belt, so that the white polishing roll does not rotate.

Further, when the lever is moved to the operation starting position, the rice polishing tension pulley is interlocked to apply tension to the belt. Therefore, the rice mill roll is rotated to start rice polishing. When the white rice is discharged from the polishing room, the automatic stop switch is turned on. At this time, the changeover switch is turned off.

When the rice polishing work is completed and the white rice is no longer discharged from the polishing chamber, the automatic stop switch is turned off and the main mode is turned off.
Stop automatically.

[0013]

Embodiments of the present invention will be described with reference to the accompanying drawings. The two-stage pulley 2 of the main motor 1 includes a rice-polishing belt 4 wound around a rice-polishing pulley 3, a hulling-pulley 5 and a hulling-belt 7 wound around a paddy suction fan pulley 6. Is wrapped around. A rice polishing tension pulley 8 is provided on the outer side of the rice polishing belt 4, and a hulling tension pulley 9 is provided on the outer side of the hulling belt 7.

The rice-polishing tension pulley 8 is connected to the rice-polishing operating rod 11 via a wire 10, and the hulling tension pulley 9 is connected to the rice-polishing operating rod 1 via a wire 12.
It is connected to 3. The tension pulleys 8 and 9 are connected to the spring B.

The operating rods 11 and 13 are rotatably provided on the operation panel S and are rotated by a power switching lever 15 which slides in a U-shaped guide groove 14. On the operation panel S, a rice polishing switch 20 for turning the main motor 1 on and off and a hulling switch 21 are provided at the tip portions 11a, 1 of the operating rods 11, 13.
3a is provided so as to face each other.

The left half of the U-shaped guide groove 14 is a hulling groove 14a and the right half is a rice polishing groove 14b. An operation stop position 16, a main motor start position 17, and an operation start position 18 are sequentially provided in the rice polishing groove 14a as shown in FIG. When the lever 15 is in the operation stop position 16, the switches 20 and 21 are turned off and the main motor 1 is stopped.

When the lever 15 is in the main motor starting position 17, the switch is turned on and the main motor 1 is started, but the tension pulleys 8 and 9 do not apply tension to the belts 4 and 7, that is, in the idle state. , Pulleys 3, 5, 6
Does not rotate.

When the lever 15 is in the operation start position 18, the rotation of the main motor 1 is maintained and the tension is applied to the belt 4 or the belt 7 by the tension pulley 8 or the tension pulley 9. 5 and 6 rotate.

Next, the control circuit of the hulled rice polishing machine will be described. As shown in FIG. 4, the hulling switch 21 and the rice polishing switch 20 are connected in parallel, and the rice polishing switch 20 is connected to the relay 31 via the automatic stop switch 25. The changeover switch 26 is the automatic stop switch 2
5 is connected in parallel. In addition, 28 is a power supply, 29 is a power supply indicator light, and 32 is a relay, respectively.

The automatic stop switch 25 is, as shown in FIG. 6, an outlet 3 of a rice milling machine main body 35 having a rice polishing roll 34 built therein.
It is provided on the 4a side and faces one end of the rotatable connecting rod 36. A resistance plate 38 with a resistance spring 37 is provided at the other end of the connecting rod 36.

Next, the operation of this embodiment will be described. First, hulling will be described. As shown in FIG. 3, when the power switching lever 15a is moved in the horizontal direction A15 along the bottom of the hulling groove 14a, the lever 15a is moved.
Engages with the working rod 13 for hulling.

In this state, when the lever 15a is moved in the vertical direction A17 to set the main motor start position 17 to the horizontal state 15b, the tip end portion 13a of the operating rod 13 slides in the longitudinal direction A13 thereof. The abrasion switch 21 is turned on.

When the hulling switch 21 is turned on,
The relays 31 and 32 are activated and the main motor 1 is started. At this time, since the wire 12 does not pull the tension pulley 9, the pulley 9 is in a play state. Therefore, the main motor 1 rotates, but the pull-off fan pulley 5 and the suction fan pulley 6 do not rotate.

Next, when the power switching lever 15b is further moved in the vertical direction A17 to the operation start position 18 and brought to the state of 15c, the hulling switch 21 is maintained in the ON state and the wire 12 causes the tension pulley. Since 9 is pulled and tension is applied to the hulling belt 7, the hulling belt 7 is in the state shown by the solid line in FIG. Therefore, the removal fan pulley 40 and the suction fan pulley 41
Rotates, and paddy operation starts. At this time, since the rice polishing belt 4 is in the state shown by the solid line in FIG. 5, the rice polishing pulley 3 does not rotate.

When the paddy hulling operation is started, the paddy supplied from the paddy tank 43 is transported to the wind separator 41 while being removed by the removal fan 40 and separated into brown rice R and paddy M and brown rice. The R drops into the brown rice tank 43, and the paddy M is stored in the paddy bag 45 via the paddy suction fan 44. In order to reduce the burden of labor, at the time of paddy feeding, a foldable table 50 is set, and a paddy bag is placed on the table 50 for feeding.

After the hulling work is completed, the resistance handle 5
Turn 1 to adjust the resistance and change switch 2
Turn on 6. At this time, the automatic stop switch 25 and the hulling switch 21 are off.

The power switching lever 15a is attached to the hull groove 14a.
When the lever 15a is moved in the direction opposite to the arrow A15 along the bottom of the lever, the lever 15a engages with the rice polishing operating rod 11. In this state, when the lever 15a is moved in the vertical direction A17 to the main motor starting position 17 and in the horizontal state 15b, the tip 11a of the operating rod 11 slides in its longitudinal direction.
Slide in 13 directions to turn on the rice polishing switch 20.

When the rice polishing switch 20 is turned on, the relays 31 and 32 are activated and the main motor 1 is started, but the automatic stop switch 25 is maintained in the off state. At this time, since the wire 10 does not pull the tension pulley 8, the pulley 8 is in a play state. Therefore, the main motor 1 rotates, but the rice polishing pulley 3 does not rotate.

Next, when the power switching lever 15b is further moved in the vertical direction A17 to the operation start position 18 and brought into the state of 15c, the rice polishing switch 20 is kept in the ON state and the wire 10 moves the tension pulley 8 in place. Since the tension is applied to the rice polishing belt 4 by pulling, the rice polishing belt 4 is in the state of the chain line in FIG. Therefore, the rice-polishing pulley 3 rotates and the rice-polishing operation starts. At this time, since the hulling belt 7 is in the state shown by the chain line in FIG. 5, the removing fan 40 does not rotate.

When the rice polishing operation is started, the brown rice R in the brown rice tank 43 drops into the white polishing chamber 46 and is whitened by the rice polishing roll 34, and becomes white rice W and drops into the white rice discharge port 47. At this time, the white rice W presses the resistance plate 38 against the resistance of the resistance spring 37, so that the connecting rod 36 rotates and the automatic stop switch 25 is turned on. In this state, the changeover switch 26 is turned off, and the main motor 1 is driven only by the automatic stop switch 25.

When the brown rice R in the brown rice tank 43 runs out,
Since the white rice W does not press the resistance plate 38, the resistance plate 3
8 is pressed against the whitening chamber 46 side by the action of the resistance spring 37. Therefore, the automatic stop switch 25 is turned off and the main motor 1 is stopped.

The embodiment of the present invention is not limited to the above. For example, instead of providing one power switching lever in the U-shaped guide groove, as shown in FIGS.
An L-shaped hulling groove 60a and an L-shaped rice polishing groove 60b are formed on the operation panel S, and a hulling power switching lever 65a is attached to the groove 60a, and a rice polishing power switching lever is mounted in the groove 60b. It is also possible to mount 65b and operate both levers separately.

[0033]

As described above, the present invention has the following remarkable effects. (1) Since the rice milling switch for driving the main motor and the hulling switch are provided separately, the main motor does not stop unless the hulling switch is turned off. Therefore,
Since the removing fan during hulling does not stop due to the effect of the rice polishing switch, clogging of the removing fan can be prevented unlike the conventional example.

(2) Since the power switching lever operates the switch when the tension pulley is in the idle state, the rice polishing roll or the removing fan rotates after a sufficient rotational force is generated in the main motor. Therefore, compared with the conventional example, the starting torque is small, and it is possible to operate with a small motor.

[Brief description of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention and is a bottom view of an operation panel.

FIG. 2 is a front view of an operation panel.

FIG. 3 is a side view showing a displaced state of a power switching lever.

FIG. 4 is a diagram showing a control circuit.

FIG. 5 is a front view showing a displacement state of a tension pulley.

FIG. 6 is a sectional view showing an automatic stop switch.

FIG. 7 is a vertical sectional view of a hulled rice polishing machine.

FIG. 8 is another vertical cross-sectional view of the hulled rice polishing machine.

FIG. 9 is a front view of a main part of the hulled rice polishing machine.

10 is a view showing another operation panel and is a bottom view corresponding to FIG. 1. FIG.

11 is a front view of another operation panel, corresponding to FIG. 2. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main motor 2 Rice milling pulley 4 Rice polishing belt 5 Pulling fan pulley 7 Rice hulling belt 8 Rice milling tension pulley 9 Rice hulling tension pulley 10 Wire 11 Rice milling rod 12 Wire 13 Rice hulling rod 15 Power Changeover lever 20 Switch for rice polishing 21 Switch for hulling 25 Automatic stop switch 26 Changeover switch

Claims (5)

[Claims] 1. A rice polishing switch for driving a main motor and a hulling switch are separately provided, and a power switching lever for controlling the switch is provided, and the power switching lever includes a rice polishing tension pulley and a hulling tension pulley. A hulled rice milling machine in which the power switching lever activates the switch when the tension pulley is in an idle state. 2. The hulled rice polishing machine according to claim 1, wherein a power switching lever operates the switch and the tension pulley via an operating rod. 3. The hulled rice polishing machine according to claim 1, wherein the power switching lever is sequentially displaced to an operation stop position, a main motor start position, and an operation start position. 4. The hulled rice polishing machine according to claim 2, wherein the operating rod is connected to a tension pulley via a wire. 5. An automatic stop switch is provided on the outlet side of the polishing room, a rice polishing switch for driving a main motor and a hulling switch are separately provided, and a power switching lever for controlling the switch is provided. A rice milling rice polishing machine in which a tension pulley for rice polishing and a tension pulley for hulling are interlocked with each other, wherein the power switching lever operates the switch when the tension pulley is in an idle state, and is also connected to a main motor. A switch for rice polishing and a switch for hulling are arranged in parallel, the switch for rice polishing and the automatic stop switch are arranged in series, and the automatic stop switch and the changeover switch are provided in parallel. A paddy-rice milling machine.