JPH0667488B2 - Hulling amount adjustment device for hulling device - Google Patents

Description

The present invention relates to a hulling amount adjusting device in a hulling device.

(Prior Art) In the conventionally known Japanese Utility Model Laid-Open No. 57-115647, a horizontal axis rotary sorting cylinder is provided in the vicinity of a hulling part having a carry-in control valve to prepare a mixed rice hulled by the hulling part. In the separating cylinder, a plate-like layer thickness sensing valve capable of sensing the thickness of the grain layer by contacting the upper surface of the accumulated grain layer is provided at a lower position in the sorting cylinder. , The transfer control valve connects the transfer control valve and the detection valve so that the transfer control valve is opened and closed in conjunction with each other by the detection valve, and the transfer control valve is biased by a spring in the opening direction. The structure is described.

(Problems to be Solved by the Invention) However, the retraction control valve described in the above-mentioned prior art publication is always biased in the opening direction by the structure in which it is biased in the opening direction by the spring, so that the horizontal axis rotary sorting is performed. When the amount of grain in the cylinder is low, the sensing valve moves downward by sensing that there is little grain, and when the feed control valve opens in conjunction with this, it is biased by the spring as described above, It will pass just the right state and open excessively. If the carry-in control valve is opened too much, the amount of grains in the horizontal axis rotary sorting cylinder becomes too large.
This is called hunting.

On the contrary, in the above-mentioned known example, when the amount of grains in the horizontal axis rotary sorting cylinder becomes large, the sensing valve moves in the upward direction, and the feeding control valve is closed in conjunction therewith, but only the spring is used. However, there is a problem that even if it is configured such that the retraction control valve is closed against the elasticity of, it does not move smoothly.

Thus, since the technique for preventing the hunting is not known in the hulling device, the conventionally known hulling device is
All of them had a problem of causing hunting.

(Object of the Invention) By using a balance weight and a spring, hunting is prevented, and at the same time, an accurate operation is performed.

(Means for Solving the Problem) Therefore, according to the present invention, the horizontal axis rotary sorting cylinder 6 is provided in the vicinity of the hulling section 1 having the feeding control valve 4, and the mixed rice hulled by the hulling section 1 is provided. In the case where the sorting cylinder 6 is used for separation, the sorting cylinder 6 is provided at a lower position in the sorting cylinder 6.
A plate-like layer thickness sensing valve 16 capable of sensing the thickness of the grain layer is provided in contact with the upper surface of the grain layer accumulated at a lower position inside, and the transfer control valve 4 is provided for sensing operation of the sensing valve 16. The transfer control valve 4 and the sensing valve 16 are connected to each other so as to open and close in an interlocking manner, and the sensing valve 16 has a balance weight 26 for urging the sensing valve 16 in a downward direction and an upward movement of the balance weight 26. This is a hulling amount adjusting device in a hulling device provided with a spring 24 for urging in a direction.

(Structure) Explaining one embodiment of the present invention with reference to the drawings, 1 is a hull portion,
Reference numeral 2 is a fixed roll, 3 is a moving roll, and 4 is a feed-in control valve provided at an upper position of the rolls 2 and 3, which is pivotally attached to a shaft 5. Reference numeral 6 denotes a horizontal axis rotary sorting tube provided on the side of the hulling section 1, in which an innumerable vase hole 7 is formed on the inner peripheral surface of the horizontal axis rotary sorting tube 6, and a mixed rice receiving trough 8 is provided inside. And the finishing rice gutter 9 is attached. The mixed rice hulled by the rolls 2 and 3 is usually supplied to the mixed rice receiving trough 8 by a grain lifting machine. Reference numeral 10 denotes a mixed rice transfer conveyor provided on the mixed rice receiving trough 8, and 11 denotes a finishing rice transfer conveyor 11 provided on the finishing rice receiving gutter 9.

At an intermediate position between the mixed rice gutter 8 and the finished rice gutter 9,
A finishing rice control valve 12 is attached by a shaft 13. Reference numeral 14 is a rotation rising side of the horizontal axis rotary sorting cylinder 6, and a shaft 15 parallel to the gutter 8 is provided between the mixed rice receiving trough 8 and the rotation rising side 14, and the shaft 15 has a plate shape. A layer thickness sensing valve 16 is attached.
A balance weight 26 and a rotating piece 17 are fixed to one end of the shaft 15, and an L-shaped lever 18 is provided in the vicinity of the rotating piece 17 to connect the rotating piece 17 and the L-shaped lever 18. L-shaped lever 18
The other end of the control valve 4 and the feed control valve 4 are connected by a rod 19. When the layer-thickness sensing valve 16 moves upward, the feed control valve 4 closes.

Further, the arm 20 is fixed to the other end of the shaft 15, and a vertical adjustment plate 22 is loosely fitted in the vertical adjustment plate 22. Bolt 21 inserted in
Is screwed onto the arm 20 to integrally fix the vertical adjustment plate 22 to the arm 20. A lower end of a spring 24 is engaged with an upper portion of the vertical adjustment plate 22, and an upper end of the spring 24 is engaged with a fixing portion 25.

Therefore, when the layer thickness detecting valve 16 moves upward, the balance weight 26 moves upward against the weight of the balance weight 26, so that the movement becomes dull, and when the layer thickness detecting valve 16 moves downward, the elasticity of the spring 24 increases. The movement is slower because it moves downwards, but the layer thickness sensing valve 16
Is moving up, it is moved up by the elasticity of the spring 24,
When the layer-thickness sensing valve 16 moves downward, the weight of the balance weight 26 assists the downward movement, so that the movement is dull but smooth.

In addition, 27 is a manual adjusting lever of the finishing rice adjusting plate 12, 28 is an ultrasonic generator for cleaning the pot hole 7, 29 is a support, and 30 is a lead cam shaft.

(Operation) Next, the operation will be described.

In advance, the bolt 21 is tightened to adjust the position of the vertical adjusting plate 22, and the elasticity of the spring 24 is adjusted appropriately so that the layer thickness sensing valve 16 can move smoothly up and down. In this state, when paddy rice is supplied between the rolls 2 and 3 of the paddy hull part 1, the paddy rice is hulled, the mixed rice is fried by a known lifting device, and the mixed rice is supplied to the mixed rice receiving trough 8 and is then placed on the receiving trough 8. It is fed laterally by the mixed rice transfer conveyor 10 and supplied to the supply end of the horizontal axis rotary sorting cylinder 6. The supply amount at that time is sensed by the layer thickness sensing valve 16, and when the supply amount is large and the grain layer thickness is large, the elastic force of the spring 24 resists the balance weight 26 and the weight and slowly moves upward.

Therefore, the shaft 15 rotates to rotate the rotating piece 17 and slowly move the retraction control valve 4 in the closing direction via the L-shaped lever 18 and the rod 19, but the layer thickness sensing valve 16 moves slowly. , It doesn't pass the right condition, it stops in the right condition. On the contrary, when the supply amount into the horizontal axis rotary selection cylinder 6 is small, the layer thickness sensing valve 16 is lowered, but the lowering of the layer thickness sensing valve 16 resists the elasticity of the spring 24 and the balance weight 26. Since it is carried out slowly with the help of the weight of, the transfer control valve 4 also slowly moves in the opening direction, does not pass the exact state, and stops in the exact state.

In the horizontal axis rotary sorting cylinder 6, the grain is scooped in the pot 7, the finished rice is taken out to the finished rice trough 9, and the mixed rice is taken out to the mixed rice trough 8 to be separated.

(Effect) Since the carry-in control valve described in Japanese Utility Model Laid-Open No. 57-115647 described above is urged in the opening direction via the spring, the amount of grains in the horizontal axis rotary selection cylinder decreases. , When the sensing valve senses that there is little grain and moves downwards, and the reconciliation control valve is opened in conjunction with this, it is biased by the spring, so it will open past the correct state and open excessively. become.
If the carry-in control valve is opened too much, the amount of grains in the horizontal axis rotary sorting cylinder becomes too large, which is referred to by those skilled in the art as hunting. On the contrary, in the above-mentioned known example, when the amount of grain in the horizontal axis rotary sorting cylinder becomes large, the sensing valve moves in the upward direction, and in conjunction therewith, the feed control valve is closed against the elastic force of the spring. However, even if I try to close the retraction control valve against the elasticity of the spring, it does not move smoothly.

However, according to the present invention, the horizontal axis rotary sorting tube 6 is provided in the vicinity of the hulling section 1 having the feeding control valve 4, and the mixed rice hulled by the hulling section 1 is separated by the sorting tube 6. At the lower position in the sorting cylinder 6, a plate-like layer thickness sensing device capable of sensing the thickness of the grain layer by contacting the upper surface of the grain layer accumulated at the lower position in the sorting cylinder 6 A valve 16 is provided, and the carry-in control valve 4 connects the carry-in control valve 4 and the sensing valve 16 so that the carry-in control valve 4 opens and closes in conjunction with the sensing operation of the sensing valve 16, and the sensing valve 16 is connected to the sensing valve 16. Is a hulling amount adjusting device in a hulling device provided with a balance weight 26 for urging the balance weight 26 in a downward direction and a spring 24 for urging the balance weight in an upward direction. , When the supply amount is large and the grain layer thickness in the horizontal axis rotary sorting cylinder 6 is large, the balance weight 26
And because of the resilience of the spring 24 against the weight, it moves upward slowly, so it does not pass just the right state, it stops in the right state. On the contrary, when the supply amount into the horizontal axis rotary selection cylinder 6 is small, the layer thickness sensing valve 16 moves upward slowly against the elastic force of the spring 24 by the balance weight 26 and weight, so The control valve 4 also slowly moves in the opening direction, does not pass through the state more than just, and has an effect of stopping in an exactly state.

[Brief description of drawings]

FIG. 1 is a perspective view of the main part, FIG. 2 is a right side view of the main part, and FIG.
FIG. 4 is a cross-sectional view of the horizontal axis rotary selection cylinder, and FIG. 4 is a side view of the cleaning ultrasonic wave generation device. Explanation of reference numerals 1 ... hulling part, 2 ... fixed roll, 3 ... moving roll,
4 ... Carrying in control valve, 5 ... Axis, 6 ... Horizontal axis rotating sorting cylinder,
7 …… Vase hole, 8 …… Mixed rice gutter, 9… Finished rice gutter, 10
…… Mixed rice transfer conveyor, 11 …… Finished rice transfer conveyor,
12 …… Finishing rice adjustment plate, 13 …… Axis, 14 …… Rotation rising side, 15
…… Axis, 16 …… Layer thickness sensing valve, 17 …… Rotating piece, 18 …… L-type lever, 19 …… Rod, 20 …… Arm, 21 …… Bolt,
22 ... Vertical adjustment plate, 23 ... Slot, 24 ... Spring, 25 ... Fixed part, 26 ... Balance weight, 27 ... Adjustment lever, 28
…… Ultrasonic generator for cleaning, 29 …… Support, 30 …… Lead cam shaft.

Claims (1)

[Claims] 1. A horizontal axis rotary sorting tube 6 is provided in the vicinity of the hulling portion 1 having a feeding control valve 4 so that the mixed rice hulled by the hulling portion 1 is separated by the sorting tube 6. At the lower position in the sorting cylinder 6, a plate-like layer thickness sensing valve capable of sensing the thickness of the grain layer by contacting the upper surface of the grain layer accumulated at the lower position in the sorting cylinder 6. 16 is provided, and the carry-in control valve 4 connects the carry-in control valve 4 to the sensing valve 16 so that the carry-in control valve 4 opens and closes in conjunction with the sensing operation of the sensing valve 16, and A hulling amount adjusting device in a hulling device provided with a balance weight (26) for urging it in a downward direction and a spring (24) for urging the balance weight in an upward direction.