JPH0352100Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a load adjustment device in a rice mill.

(Prior art) In the conventionally known Japanese Patent Application Laid-Open No. 59-209657, an adjustment mechanism for forcibly adjusting the inflow of brown rice by a control roll is provided at the supply port of a rice milling chamber, and the control roll is rotated by a control motor. The rice milling roll provided in the rice milling chamber is driven by a motor, and the control motor is controlled by the load current of the motor.

(Problem to be solved by the invention) However, in the known example, a control roll rotated by a control motor is provided at the supply port of the rice milling chamber, and the control motor is controlled by the load current of the motor of the rice milling roll. Therefore, the structure is complicated and cannot be implemented at low cost.

In order to simplify the structure and facilitate manufacturing, the adjustment mechanism provided at the supply port of the rice milling chamber may be a mechanism that adjusts the inflow of brown rice by its own weight by simply opening and closing.

(Means for Solving the Problems) Therefore, the present invention provides a pair of left and right inflow amount control valves 8 and 9 that can adjust the amount of brown rice inflow by adjusting the degree of opening and closing in the supply cylinder 6 of the rice milling chamber 74, A gear 12 is attached to the shaft 10 of one inflow control valve 8, and a gear 13 is attached to the shaft 11 of the other inflow control valve 9.
The gear 12 and the gear 13 are meshed, the gear 12 is meshed with the gear 16 of the potentiometer 14, the gear 13 is meshed with the gear 19 of the forward/reverse motor 17, and the forward/reverse motor 17 is connected to the potentiometer 14. The rice milling roll 57 provided in the rice milling chamber 74 is configured to be driven by a motor 68, so that the rice milling roll 57 is configured to be rotated in forward and reverse directions according to a signal from the meter 14, and is driven by a motor 68.
An ammeter 70 with a meter relay is connected to the power supply circuit 69 of the meter relay, and the ammeter 70 with a meter relay and the potentiometer 14 are positioned so that the position of the potentiometer 14 is determined by a signal from the ammeter 70. This is a load adjustment device for rice milling machines.

(Embodiment) An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a frame, which is formed into an arbitrary external shape and has an upper horizontal member 2 and a lower mounting member 3. Upper horizontal member 2
The lower mounting member 3 is made of angle steel, channel steel, flat plate, or the like. Upper horizontal member 2
A rice polishing machine storage chamber 4 is formed in the lower part of the rice milling machine, and a power transmission chamber 5 is formed in the lower part of the lower mounting member 3 . 6
is a connecting tube provided at the lower end of the hopper 7, and a pair of on-off valves 8 and 9 are provided inside. The on-off valves 8, 9
Gears 12 and 13 of the same diameter are attached to the rotating shafts 10 and 11 of the rotary shafts 10 and 11 so as to mesh with each other, and a gear 16 fixed to the rotating shaft 51 of the positioning potentiometer 14 is meshed with one of the gears 12. , a gear 19 fixed to the rotating shaft 18 of a forward/reverse driving motor 17 is meshed with the other gear 13, and the potentiometer 14 and the forward/reverse motor 17 are connected to each other by the control of the potentiometer 14. are linked so that they rotate forward and reverse. Further, a control handle (not shown) is attached to the end of the rotating shaft 18 so that it can be rotated manually. 20 is a shutter.

Reference numeral 21 denotes a guide tube suspension member for fixing the connecting tube, which is entirely formed of a flat plate and has a central drop opening 22, an annular collar 23, and a downwardly protruding tube body 24. The cylinder body 24 is provided at the center of the lower surface of the guide cylinder suspension member 21. Reference numeral 25 denotes a horizontal adjustment plate, and a through hole 26 is provided in the center of the horizontal adjustment plate 25. The cylinder body 24 of the guide cylinder suspension member 21 is fitted into the through hole 26 from above, and the guide cylinder suspension member 21 is fixed to the horizontal adjustment plate 25 with bolts 27. Horizontal adjustment plate 25
Bolts 28 for fixing to the upper horizontal member 2 and adjustment bolts 29 for leveling are provided at four positions on the front, rear, left and right sides. When the adjustment bolt 29 is screwed in, it abuts against the upper surface of the upper horizontal member 2, lifts the horizontal adjustment plate 25, and adjusts the level.

Reference numeral 30 denotes a guide cylinder whose upper end 31 is inserted into the inside of the cylinder 24 from below, and the guide cylinder 30 is fixed to the cylinder 24 by a bolt 32 inserted from the outside of the cylinder 24 (see Fig. 3). ), an annular protrusion 34 is formed on the outer periphery of the guide tube 30 so that a groove 33 is formed in the lower part of the tube body 24 when the guide tube 30 is fixed to the hanging member 21. A horizontal rotating gear 35 is fitted into the groove 33, and a worm 36 is meshed with the horizontal rotating gear 35. Upper end 3 of guide tube 30
A support arm 37 protrudes from the inside of 1, and a bearing 38 is attached to the support arm 37.

A forward/reverse motor 40 is attached to one end of the shaft 39 of the worm 36, and a control handle is attached to the other end of the shaft 39 so that the worm 36 can be rotated manually. or,
An arc-shaped gear 4 is located at an arbitrary position on the horizontal rotating gear 35.
Fix 1. The gear 41 is a part of a larger gear, and the rotation shaft 43 of the potentiometer 42 is connected to the gear 41.
The gears 44 fixed to are engaged with each other. An encoder is used as the potentiometer 42, for example. The potentiometer 42 and the forward/reverse rotation motor 40 communicate with each other so that the forward/reverse rotation motor 40 rotates in the forward and reverse directions based on a signal from the potentiometer 42 .

The lower end 45 of the guide tube 30 is a free end,
Therefore, by adjusting the adjustment bolt 29,
The bearing 38 is horizontally adjusted. An upper support frame 47 of the polishing cylinder 46 is inserted inside the lower end 45 .
The upper support frame 47 has a cylindrical body 48 and a collar 49, and the cylindrical body 48 is inserted inside the lower end 45 of the guide cylinder 30 so as to be vertically movable and rotatable. 50 is a universal joint fixed to the annular protrusion 34 of the guide tube 30, 51 is a universal joint fixed to the collar 49 of the upper support frame 47, and 52 is a connection between the universal joint 50 and the universal joint 51. The diagonal rod 53 is a mounting bracket 54 attached to the horizontal rotating gear 35 and a mounting bracket 55 attached to the collar 49.
It is a spring that is locked to. Therefore, the upper support frame 4
When a downward force is applied to the upper support frame 7, the upper support frame 47 moves downward while rotating in the direction of FIG. Therefore, the upper support frame 47 receives the downward force and the spring 53.
The downward movement is stopped when the contraction force matches the contraction force of .

A lower support frame 56 is provided at the lower end of the polishing tube 46, and the lower support frame 56 moves up and down together with the polishing tube 46 as shown by arrow A. 57 is a vertical shaft rice polishing roll provided in the polishing cylinder 46, 58 is its shaft;
The upper end of the shaft 58 is pivoted to a bearing 38, and the lower end of the shaft 58 is pivoted to a lower bearing 59. 74 is the rice milling room. The lower bearing 59 is attached to a flange 61 that is integrally provided on a horizontal adjustment plate 60, and the horizontal adjustment plate 60 is formed separately from the horizontal adjustment plate 25, and is adjusted horizontally to the lower mounting member 3 by an adjustment bolt 62. is adjusted. 63 is a mounting bolt.

Therefore, 64 is a scraping body, 65 is a rice polishing outlet,
66 is a bran suction blade, 67 is a pulley, and a milling motor 68 is connected to the pulley 67 via a belt (not shown). Power supply circuit 6 of the motor 68
An ammeter 70 with a meter relay is interposed at 9, and the ammeter 70 with a meter relay is connected to the potentiometer 14. Ammeter 7 with meter relay
0 and the potentiometer 14 are connected to the motor 6.
When the load current value of 8 exceeds a set value, a signal is sent to the potentiometer 14, and the motor 17 is connected to close the on-off valves 8 and 9. 71 is a set value adjustment knob of the ammeter 70 with meter relay;
Reference numeral 72 indicates a needle, and reference numeral 73 indicates a setting hand that is adjusted by the adjustment knob 71.

(effect) Next, we will discuss the effect.

When an encoder is used for the potentiometer 14, it can be set in about 110 steps, so if you set it to "50" by remote control and turn on the switch, the gears 12 and 13 will be controlled by the potentiometer 14. via the on-off valve 8,
9 opening/closing angles are detected. Therefore, the forward/reverse motor 17 is energized to rotate the shaft 18 and the gear 19 to rotate the gear 13 and the gear 12 so that this value becomes "50", and the opening/closing angles of the on-off valves 8 and 9 are adjusted.

Therefore, when brown rice is introduced from above and the motor 68 is rotated to rotate the vertical axis rice polishing roll 57,
The brown rice supplied between the vertical rice milling roll 57 and the polishing cylinder 46 is stirred and refined, and the peeled rice bran is ejected to the outside through the holes of the polishing cylinder 46, and is then sucked by the bran suction blades 64 and sent to the outside. The discharged and milled white rice is compressed in the gap between the lower support frame 56 and the rolls 57 below the polishing cylinder 46. At this time, if the milling load current value of the motor 68 suddenly changes due to changes in rice quality or the like and an overload is applied, this overload current is detected by an ammeter 70 with a meter relay. Therefore, if this current is larger than the set value, a control signal is sent from the ammeter 70 with meter relay to the potentiometer 14 to reduce the amount of brown rice input.
The potentiometer 14 is connected to the motor 17 with an on-off valve 8,
9 in the closing direction, reducing the amount of grain flowing down into the milling tube 46, reducing the resistance applied to the milling roll 57, protecting the motor 68, and at the same time reducing the amount of grain flowing down into the milling tube 46. There is no change in pressure and no spots appear in the whiteness of the milling.

When the current of the motor 68 returns to the set value by this control, the potentiometer 14 is released from the control of the ammeter 70 with a meter relay, and the motor 17 is controlled to the original set value.

(Effects) The present invention provides a pair of left and right inflow control valves 8 and 9 that can adjust the inflow of brown rice by adjusting the degree of opening and closing in the supply cylinder 6 of the rice milling chamber 74. A gear 12 is attached to the shaft 10, and a gear 13 is attached to the shaft 11 of the other inflow control valve 9, and the gears 12 and 13 are meshed with each other, and the gear 16 of the potentiometer 14 is attached to the gear 12.
The gears 19 of a forward and reverse motor 17 are meshed with each other, and the forward and reverse motor 17 is configured to rotate forward and reverse in response to a signal from the potentiometer 14. An ammeter 70 with a meter relay is connected to the power supply circuit 69 of the motor 68, and the ammeter 70 with a meter relay and the potentiometer 14 are connected to the potentiometer 14 by the signal from the ammeter 70. Since this is a load adjustment device for a rice milling machine that has been designed to position the meter 14, (a) a pair of left and right inflow control valves 8 are provided that can adjust the amount of brown rice inflow by adjusting the opening/closing degree of the supply tube 6 of the rice milling chamber 74; , 9, rice can be supplied from the center to the milling chamber 74 by opening the inflow control valves 8, 9.

(b) A gear 12 is attached to the shaft 10 of one of the inflow rate regulating valves 8, and a gear 13 is attached to the shaft 11 of the other inflow rate regulating valve 9, and the gears 12 and 13 are meshed, and the gear 12 has a potentiometer. meter 1
By meshing the gear 16 of No. 4 with the gear 13 and the gear 19 of the forward/reverse motor 17, the forward/reverse motor 17 is rotated in the forward or reverse direction with the signal from the potentiometer 14, and the inflow amount regulating valves 8,
9 can be opened and closed.

There is an effect.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of the main part, Fig. 2 is a side view of the upper bearing support member, Fig. 3 is a sectional view of the upper bearing support member, Fig. 4 is a perspective view of the ammeter, and Fig. 5 is the main part. FIG. Explanation of symbols, 1...Frame, 2...Upper horizontal member, 3...Lower mounting member, 4...Rice polishing machine storage chamber,
5... Power transmission chamber, 6... Connection cylinder, 7... Hopper, 8... Open/close valve, 9... Open/close valve, 10... Rotating shaft, 11... Rotating shaft, 12... Gear, 13... Gear, 14... Potentiometer, 15... Rotating shaft, 16... Gear, 17... Forward/reverse motor, 18
... Rotating shaft, 19 ... Gear, 20 ... Shutter, 21 ... Guide cylinder hanging member, 22 ... Drop opening, 2
3... Flange, 24... Cylinder, 25... Horizontal adjustment plate, 26... Through hole, 27... Bolt, 28... Bolt, 29... Adjustment bolt, 30... Guide cylinder, 3
1...Top end, 32...Blut, 33...Groove, 34
...Annular protrusion, 35...Horizontal rotating gear, 36...
Worm, 37...Support arm, 38...Bearing, 39
...shaft, 40...forward/reverse motor, 41...gear,
42... Potentiometer, 43... Rotating shaft, 4
4...Gear, 45...Lower end, 46...Refining cylinder, 4
7... Upper support frame, 48... Cylinder part, 49... Tsuba,
50... Universal joint, 51... Universal joint, 52... Diagonal rod, 53... Spring, 54... Mounting bracket, 55... Mounting bracket, 56
... Lower support frame, 57 ... Vertical axis rice milling roll, 58
... shaft, 59 ... bearing, 60 ... horizontal adjustment plate, 6
1...flange, 62...adjustment bolt, 63...
Mounting bolt, 64... Scraping body, 65... Polished rice outlet, 66... Bran suction blade, 67... Pulley, 68
...Bunsei motor, 69...Power source, 70...Ammeter, 71...Adjustment knob, 72...Needle, 73...
Setting needle, 74...Rice polishing room.

Claims (1)

[Scope of utility model registration request] A pair of left and right inflow control valves 8 and 9 that can adjust the inflow of brown rice by adjusting the degree of opening and closing are provided in the supply tube 6 of the rice milling chamber 74, and a gear 12 is connected to the shaft 10 of one inflow control valve 8. The shaft 11 of the inflow control valve 9
A gear 13 is attached to each of the gears 12 and 13, and the gear 12 and the gear 13 are engaged with each other.The gear 16 of the potentiometer 14 is engaged with the gear 12, and the gear 19 of a forward/reverse motor 17 is engaged with the gear 13. The reversing motor 17 is connected to the potentiometer 14
The rice milling chamber 7
The rice milling roll 57 provided in the rice polishing roll 57 is configured to be driven by a motor 68, and an ammeter 70 with a meter relay is connected to a power supply circuit 69 of the motor 68, and the ammeter 70 with a meter relay and the potentiometer 1 are connected to each other.
4. A load adjustment device for a rice milling machine, wherein the position of the potentiometer 14 is determined by a signal from the ammeter 70.