JP2007090285A - Hulling apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To set a proper gap between hulling rolls in accordance with the supply amount of grains even with economical configuration. <P>SOLUTION: The hulling apparatus comprises a pair of hulling rolls, gap control means for controlling a gap between hulling rolls, hulling roll initial position setting means for setting the gap between the hulling rolls at set positions at the time of starting hulling work, and supply amount alteration means for altering the supply amount to the hulling rolls and is enabled to set the gap between the hulling rolls at the set positions by the hulling roll initial position setting means and successively make the gap between the hulling rolls narrow by a set distance at every set period by the gap control means. The gap control means makes the gap between the hulling rolls narrow in accordance with the alteration of the supply amount of the grain to the hulling rolls by the supply amount alteration means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a hulling device for removing a bag.

In Patent Document 1, the hulling roll is adjusted to the set position at the start of the hulling work, and then the hulling work is performed, and then the roll gap is widened or narrowed according to the load current value during the hulling work. Are described.
JP 2000-37636 A

  The technique of adjusting the gap between the hulling rolls according to the load current value during the hulling operation as in Patent Document 1 is controlled from the relationship between the supply amount of the grain and the load current value. By the way, the supply amount of the grain of patent document 1 is converted by the opening degree of the straw supply control valve, and the straw supply control valve opening sensor is used.

  Therefore, since the sensor which detects the supply amount of a grain is required, it has become expensive. In addition, the contents of control greatly depend on the power supply situation of the place where the hulling device is used, and there is a drawback that the control is not stable because the detection value of the load current value is not stable particularly in an area where the power supply situation is bad.

  This invention makes it a subject that the gap | interval of an appropriate hulling roll can be set according to the supply amount of a grain, although it is an inexpensive structure.

In order to solve the above problems, the present invention has taken the following technical means.
That is, according to the first aspect of the present invention, a pair of hulling rolls (1), gap control means for controlling the gap between the hulling rolls (1), and the hulling rolls (1 ) And a supply amount changing means (31) for changing the supply amount of the hulling roll (1), the hulling roll initial position setting means. Then, after setting the gap of the hulling roll (1) to a set position, the gap control means performs an operation of narrowing the gap of the hulling roll (1) by a set distance every set time (t1). The gap control means performs a setting time for performing an operation of narrowing the gap of the hulling roll (1) in accordance with the change in the amount of grain supplied to the hulling roll (1) by the supply amount changing means (31). The hulling equipment characterized by having a configuration for changing (t1) To.

  In the invention described in claim 2, the pair of hulling rolls (1), gap control means for controlling the gap between the hulling rolls (1), and the hulling roll (1) at the start of the hulling work The hulling roll initial position setting means for setting the gap to a set position and the supply amount changing means (31) for changing the supply amount of the hulling roll (1), After setting the gap of the hulling roll (1) at a set position, the gap control means performs an operation of narrowing the gap of the hulling roll (1) by a set distance every set time, and the gap control means Is configured to change the movement amount of the operation for narrowing the gap of the hulling roll (1) in accordance with the change in the amount of grain supplied to the hulling roll (1) by the supply amount changing means. The hulling device.

  In the first aspect of the present invention, first, after the gap of the hulling roll (1) is set to the initial setting position, the grain is supplied to the gap of the hulling roll (1) to start the hulling operation. . And the operation | movement which narrows the gap | interval of the hulling roll (1) by the set distance for every setting time (t1) during the hulling work is performed. When the supply amount of the grain to the hulling roll (1) is changed, the set time for performing the operation of narrowing the gap of the hulling roll (1) is changed. Therefore, since the gap of the hulling roll (1) during the hulling work is narrowed by the set distance every set time, a stable gap of the hulling roll (1) can be set regardless of the power supply situation. Even if there is no sensor for detecting the amount of grain supply, an appropriate gap between the rice hull rolls (1) can be set according to the change in the amount of grain supply to the hulling rolls (1).

  In the invention of claim 2, first, after the gap of the hulling roll (1) is set to the initial setting position, the grain is supplied to the gap of the hulling roll (1) to start the hulling operation. . And the operation | movement which narrows the gap | interval of the hulling roll (1) by the set distance for every set time during the hulling work is performed. When the supply amount of the grain to the hulling roll (1) is changed, the movement amount of the operation for narrowing the gap of the hulling roll (1) is changed. Therefore, since the gap of the hulling roll (1) during the hulling work is narrowed by the set distance every set time, a stable gap of the hulling roll (1) can be set regardless of the power supply situation. Even if there is no sensor for detecting the amount of grain supply, an appropriate gap between the rice hull rolls (1) can be set according to the change in the amount of grain supply to the hulling rolls (1).

As one of the best modes for carrying out the hulling device of the present invention, a hulling sorting device will be described.
FIG. 1 is a diagram for explaining the inside of the hull sorting apparatus viewed from the side operated by the operator, that is, from the front.

  The rice hull sorting device includes a hull hulling device A that performs hulling work for hulls, a wind selection unit B that wind-sorts rice hulls and hulls from the mixed rice of hulls and brown rice that has been hulled by the hulling machine A, And a sorting unit C that separates the mixed rice wind-selected by the wind sorting unit into rice bran and brown rice.

  The hulling device A includes a pair of left and right hulling rolls 1, a hulling roll moving shaft 2 for moving one hulling roll 1 b in order to change the gap between the hulling rolls 1, and the hulling roll 1. A hulling roll gap adjusting motor 3 for adjusting the gap is provided. The hulling roll moving shaft 2 forms a screw portion, and is connected to a hulling roll moving body 4 provided on the side of the hulling roll 1b, so that the hulling roll gap adjusting motor 3 or the manual adjusting handle 9 is operated. The hulling roll moving shaft 2 rotates and the hulling roll moving body 4 moves sideways so that the hulling roll 1b moves sideways. 5a and 5b are transmission gears for transmitting the power transmitted to one hulling roll 1a to the other hulling roll 1b.

  Above the hulling device A is a hull hopper 6 that stores hail, and below the hull hopper 6 is a hull supply control valve 7 that supplies hulls to the hulling roll 1 and a feed roll that feeds the hulls of the hulling hopper 6. 8 is provided.

  The wind selection section B includes a mixed rice flow shelves 10 for the mixed rice wind-selected by the suction fan 14 to flow to the mixed rice helix 11, and a down flow shelves 13 for the straw to flow down to the cocoon tray 12. I have. The rice husk sucked by the suction fan 14 is discharged to the outside by the dust discharge cylinder 15. The mixed rice conveyed by the mixed rice helix 11 is cerealed by the mixed rice elevator 16 and temporarily stored in the mixed rice tank 17.

    The sorting unit C includes a transfer pad 18 for transferring the mixed rice in the mixed rice tank 17, a distribution case 19 for distributing the mixed rice transferred by the transfer pad 18 to a plurality of passages, and the mixing distributed in the distribution case 19. A multistage swing sorting plate 20 for separating and discharging rice into brown rice and brown rice is provided.

    In the oscillating sorting plate 20, the mixed rice is formed with three layers of mixed rice layer and brown rice layer in which the cocoon layer, cocoon and brown rice are mixed. A straw partition plate 21 that partitions the rice layer and a brown rice partition plate 22 that partitions the mixed rice layer and the brown rice layer are provided. Also, below the discharge side of the swing sorting plate 20, a straw reduction passage 23 through which the straw of the straw layer passes, a mixed rice circulation passage 24 through which the mixed rice layer passes, and a brown rice discharge passage through which the brown rice of the brown rice layer passes. 25 is provided, so that the rice cake is returned to the rice cake reduction chamber 27 through the rice cake reduction passage 23 and the rice cake reduction blower 26, and is supplied again to the rice cake roll 1 to perform the rice straw operation, and the mixed rice is mixed rice circulation passage. 24, the rice is circulated to the mixed rice helix 11 and sorted again by the sorting section C, and the brown rice is discharged from the brown rice discharge slot 28 through the brown rice discharge passage 25 to the outside of the machine.

Next, the operation mechanism of the soot supply control valve 7 will be described.
The soot supply control valve 7 and the operation lever 30 are linked via a link mechanism E, and the soot supply control valve 7 opens and closes when the operation lever 30 is operated. Reference numeral 31 denotes a soot supply adjustment lever that regulates the opening degree M of the soot supply control valve 7 by restricting the operation of the link mechanism E.

  FIG. 3 shows an operation panel U, an operation button 40, a stop button 41, an indicator-type indicator 42 indicating the load state of the main motor (not shown) of the hulling sorter, and a display for displaying a load current value and other numerical values. The display switch 44 for switching the display contents of the display unit 43, the changeover switch 45 for switching whether the gap between the hulling roll 1 is automatically controlled or manually set by the operator, and the hulling roll 1 A display 46 that displays a wide distance with a narrow gap, and a removal rate adjustment switch 47 for an operator to manually set the distance of the gap between the hulling rolls 1 are provided.

Although not shown, the operation panel U includes a control box including a control unit that reads the load current value of the main motor and controls the gap between the hulling rolls 1.
Next, the hulling work will be described with reference to FIG.

  When the operation switch 40 is operated, the main motor (not shown) of the hull sorting apparatus starts to drive. Then, the hulling roll gap adjusting motor 3 first moves one hulling roll 1b in the F direction to a position where it comes into contact with the other hulling roll 1. When the hulling rolls 1a and 1b are in contact with each other, the load current value of the main motor is increased. When the initial load current value w2 is exceeded from the no-load current value w1, it is determined that the hulling rolls 1a and 1b are in contact with each other. After that, the gap of the hulling roll 1 is set to a set position (for example, 1 mm) by moving the hulling roll 1b in the G direction in which the gap between the hulling rolls 1a and 1b widens for a set time (for example, 5 seconds). At the same time, the current value decreases to the no-load current value w1, and when the setting of the initial position of the gap of the hulling roll 1 is completed, this is displayed on the display 43.

  When the initial position setting of the hulling roll 1 is completed and the operator operates the operation lever 30, the hull supply control valve 7 is opened via the link mechanism E, and the hull in the hulling hopper 6 falls into the gap of the hulling roll 1. The hulling work is started. When the hulling operation is started, a time zone t0 in which the load current value is not stable at the beginning of the hulling operation from the no-load state w1 continues for a while, and after the load current value is stabilized, the gap control is performed for each work time of the hulling roll 1. Be started.

  When a set time t1 (for example, 15 minutes) elapses after the hulling operation is in the stable state s, the hulling roll clearance adjustment motor 3 causes the hulling roll 1b to be set for a set time (for example, 0.5 seconds). Move toward F direction to narrow the gap. Therefore, it is possible to return the gap of the hulling roll 1, which has been worn away by the hulling operation and widened, to the initial gap. Thereafter, similarly, the aforementioned hulling roll 1 is controlled every set time t1 (see H in FIG. 5).

  When the operator operates the kite supply adjustment lever 31 to change the opening degree of the kite supply control valve 7, the amount of kite supplied to the hulling roll 1 is changed. If it changes so that the supply amount of a kite may be increased, since the supply amount of the kite to the hulling roll 1 will increase, the load current value of a main motor will increase. When it is detected that the load current value is equal to or greater than the set value w3 and has reached the stable state r, the set time interval for performing control to move the gap of the hulling roll 1 in the narrow direction at each set time t1 is shortened (for example, Every 13 minutes), it is possible to cope with a greater degree of wear of the hulling roll than usual.

  On the other hand, if the change is made to reduce the supply amount of soot, the load current value of the main motor decreases. When it is detected that the load current value is equal to or less than the set value w4 and has reached the stable state p, the interval of the set time for performing control to move the gap of the hulling roll 1 in the narrow direction every set time is increased (for example, 17 minutes) Therefore, it is possible to prevent the hulling roll from becoming too narrow by controlling the hulling roll every normal time. That is, the load current value between w3 and w4 can be set as the normal efficiency work range M.

  Regarding the control for changing the supply amount of the hull and for adjusting the movement of the gap between the hulling rolls 1 in a narrow direction, the hulling roll is used instead of changing the time interval in addition to changing the time interval for performing the control as described above. (1) You may make it the structure which changes the movement adjustment amount of 1 time.

  In other words, when it is detected that the load current value is stabilized at the set value w3 or more by increasing the supply amount of the kite, the moving time of the control for moving the gap of the hulling roll 1 in a narrow direction every set time is increased ( For example, 0.6 seconds), the gap between the hulling rolls 1 can be narrowed, and the wear of the hulling rolls 1 can be increased. On the contrary, when it is detected that the load current value is stabilized at the set value w4 or less by decreasing the supply amount of the kite, the moving time of the control for moving the gap of the hulling roll 1 in a narrow direction every set time is reduced ( For example, 0.4 second) can prevent the gap between the hulling rolls 1 from becoming too narrow.

  The gap control of the hulling roll 1 according to the present embodiment can detect the state of the supply amount of the hull by detecting the load current value of the main motor, so that the sensor for detecting the opening degree of the hull supply control valve Therefore, it is possible to make an inexpensive configuration.

  J in FIG. 5 performs control to narrow the gap of the hulling roll 1 every set time T1, but as the time for the hulling work becomes longer, for example, the wear condition of the hulling roll 1 is larger than the setting. It shows that the gap between the sliding rolls 1 is increased, the load current value is lowered, and the removal rate is lowered. w5 is a lower limit load current value. When the load current value decreases to the lower limit load current value w5, the hulling roll even if the time for moving in the F direction to narrow the gap of the hulling roll is not reached. 1 movement starts. That is, by satisfying the relationship of T1> T2 and T1> T3, it is possible to prevent a reduction in the efficiency of the hulling work due to a reduction in the removal rate.

  In relation to the gap control of the hulling roll in this embodiment, the load value of the main motor is controlled by the load current value, but instead of the control by the load current value, the numerical value based on the load factor of the main motor is changed. By performing the gap control of the hulling roll as a value, it is possible to facilitate the control accuracy even in a place where the power supply voltage is relatively bad.

The figure which shows the inside of the hulling sorting device seen from the front Cross section of hulling device Operation panel 籾 Supply control valve link mechanism diagram The figure explaining gap control of a hulling roll The figure explaining gap control of a hulling roll

Explanation of symbols

1 Hulling roll 31 Supply amount changing means

Claims (2)

  A pair of hulling rolls (1), a gap control means for controlling the gap between the hulling rolls (1), and a hulling that sets the gap between the hulling rolls (1) at a set position at the start of the hulling work Roll initial position setting means and supply amount changing means (31) for changing the supply amount of the hulling roll (1), and the gap between the hulling rolls (1) is set by the hulling roll initial position setting means. After setting to the set position, the gap control means performs an operation of narrowing the gap of the hulling roll (1) by a set distance every set time (t1), and the gap control means is the supply amount changing means. The setting time (t1) for performing the operation of narrowing the gap of the hulling roll (1) according to the change in the amount of grain supplied to the hulling roll (1) by (31) is changed. A special hulling device.   A pair of hulling rolls (1), a gap control means for controlling the gap between the hulling rolls (1), and a hulling that sets the gap between the hulling rolls (1) at a set position at the start of the hulling work Roll initial position setting means and supply amount changing means (31) for changing the supply amount of the hulling roll (1), and the gap between the hulling rolls (1) is set by the hulling roll initial position setting means. After setting to the set position, the gap control means performs an operation of narrowing the gap of the hulling roll (1) by a set distance every set time, and the gap control means is a hulling by the supply amount changing means. A hulling device characterized in that the movement amount of the operation for narrowing the gap of the hulling roll (1) is changed according to the change in the amount of grain supplied to the roll (1).

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