JPH053354B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to an automatic sorting adjustment device for a grain sorter having a pot-and-hole type rotary sorting barrel.

(b) Conventional technology In other words, in a grain sorting machine that is constructed by inserting and horizontally suspending a receiving gutter with a gate valve that can freely change its inclination on the grain receiving side in a pot-hole type rotary sorting barrel, In this system, the flow rate of the mixed rice flowing through the rotary sorting barrel and the sorting accuracy of brown rice were monitored, and the angle of inclination of the gate valve connected to the grain receiving side of the receiving trough was manually adjusted.

(c) Problems to be Solved by the Invention As described above, in the conventional type, a partition is installed in series on the grain receiving side of the receiving gutter to monitor the flow rate of mixed rice flowing in the rotating sorting cylinder and the sorting accuracy of brown rice. Since the inclination angle of the valve was manually adjusted, the adjustment was not carried out in a timely and appropriate manner, making it difficult to achieve the objective of stabilizing the flow rate of mixed rice in the rotating sorting cylinder and improving sorting accuracy.

Therefore, in order to solve the drawbacks of the conventional method, the present invention detects the flow rate of mixed rice flowing in the rotary sorting cylinder and automatically adjusts the inclination angle of the gate valve. The purpose of the present invention is to provide a grain sorting machine which is capable of changing and adjusting the relative posture of the gate valve and the sensing plate to correspond to conditions such as grain size, stabilizing the sorting action, and having high sorting accuracy and efficiency. be.

(d) Means for Solving the Problems Therefore, in order to provide a grain sorting machine as described above, the present invention includes a gate valve whose inclination can be changed freely on the grain receiving side in the pot-hole type rotary sorting barrel. In a grain sorting machine configured by horizontally extending a receiving gutter with a series of runners, the lower surface of the rotating sorting cylinder is deviated toward the starting end in the rotating direction of the rotating sorting cylinder, and the flowing fluidized bed is A sensing plate that comes into contact with the upper layer surface and operates by following the height fluctuation of the upper layer surface is installed, and the sensing plate and the gate valve are interlocked and interlocked by a link with a turnbuckle interposed therebetween, and the sensing plate is operated by the operation of the sensing plate. The inclination angle of the gate valve is automatically changed, and the relative attitude of the gate valve with respect to the sensing plate can be changed and adjusted by the turnbuckle.

(E) Effect With this structure, the mixed rice supplied to the starting end of the rotary sorting cylinder is deviated in the rotating direction of the rotary sorting cylinder and flows toward the terminal end while forming a fluidized bed. During the transition, it is lifted up by the pot hole and falls in a parabola, and the falling material is blocked by a gate valve, and the brown rice falls into the receiving trough and is taken out, and the paddy is lifted up to the receiving trough. The rice falls or flows back onto the inner peripheral surface of the rotating sorting cylinder and gradually moves to the discharge side where it is sorted into brown rice and paddy.

In this case, the sensing plate operates to follow the height fluctuation of the upper surface of the fluidized bed, and this operation causes the gate valve to automatically change the inclination angle via the link.

In other words, when the flow rate of mixed rice in the rotary sorting barrel increases and the size of the fluidized bed increases, the gate valve tilts toward the grain receiving side and changes the angle of inclination, increasing the amount of rice received into the receiving gutter and reducing the flow rate of mixed rice. This reduces the size of the fluidized bed and tilts the gate valve in the opposite direction to reduce the amount received into the receiving gutter.

Further, if conditions such as grain size change due to differences in product types, the relative attitude of the gate valve to the sensing plate is changed and adjusted by operating the turnbuckle.

In other words, when the particle size is large, the object lifted up by the pot hole is easy to escape from the pot hole, and when the particle shape is small, it is difficult to escape from the pot hole, and the falling position where it falls in a parabola will be different. When the grain size is large, the turnbuckle is operated to tilt the gate valve toward the grain receiving side, and when the grain size is small, the gate valve is tilted in the opposite direction to adjust the relative posture with respect to the sensing plate.

(f) Examples Hereinafter, the present invention will be explained using examples shown in the drawings.

Figure 1 shows a cross-sectional view of the hulling and sorting machine, and the lower side of the machine is equipped with a mixed rice conveyor 6 that communicates with the elevator 5, a finished rice conveyor 8 that communicates with the finished rice thrower 7, a suction dust remover 9, etc. A wind sorting box C is installed, and a hulling machine D equipped with a hopper 10, a dehulling roll 11, etc. is installed above one end of the wind selection box C.

In addition, a grain sorting machine E is installed above the other end of the wind sorting box C.
The grain sorting machine E is equipped with rotatable pot-hole type rotary sorting cylinders A, a, each of which has numerous pot holes 1 formed on its inner circumferential surface at the top and bottom of a case 12, respectively. The terminal side of the upper rotary sorting cylinder A is provided so as to communicate with the hopper 10, and within this sorting cylinder A there are receiving troughs 3, 16 and A supply gutter 17 is constructed, and one end of the feed gutter 17 is connected to the bottom of the tank 18 which communicates with the elevator 5, and the other end is opened inward to the starting end side of the rotary sorting cylinder A. , the receiving gutter 3, 16 in different upper and lower stages.
Gate valves 2 and 19 are installed on the grain receiving side of the trough so that the inclination can be changed freely, and the lower part of the gutter 20 communicating with the terminal end side of the receiving gutter 16 is located inward at the starting end side of the lower rotary sorting barrel a. The helical conveyor 22 is installed inside the receiving gutter 21 installed in the rotary sorting cylinder a at the lower stage, and installed so that the terminal end (d) communicates with the mixed rice conveyor 6 side. ,
The lower part of the gutter 23 that communicates with the terminal end of the gutter 3 is connected to one end of the gutter 21, and the other end of the gutter 21 is connected to the finished rice conveyor 8 side. There is.

A sensing plate 4 whose upper end is pivoted to a support shaft 24 is installed near the starting end side A in the upper rotary sorting cylinder A,
This sensing plate 4 has its lower surface deviated in the direction of rotation of the rotary sorting cylinder A in the E direction and comes into contact with the upper surface of the flowing fluidized bed P, so that it operates by following the height fluctuations of this upper layer surface. It's summery.

A link mechanism B is interposed between the end of the support shaft 24 projecting outward from inside the case 12 and the outer end of the rotation support shaft 25 of the gate valve 2, and the link mechanism B is connected. In the link mechanism B, an arm 26 fixed to the outer end of the support shaft 24 and an arm 27 fixed to the outer end of the rotation support shaft 25 are interlocked by a link 29 with a turnbuckle 28 interposed therebetween. is connected with a weak spring 30.

Therefore, the mixed rice of brown rice and paddy obtained by being hulled by the huller D and wind sorted in the wind sorting box C is supplied from the supply gutter 17 to the starting end side A of the upper rotary sorting cylinder A. Then, the rotary sorting cylinder A rotates in the direction of arrow E.
The grain engages with the pot hole 1 and is lifted up to the arrow.
It falls in a parabola as shown in (g). At this time, the falling rice is separated by gate valves 19 and 2, so that the mixed rice is received in the receiving gutter 16 and the finished rice is received in the receiving gutter 3. The paddy that is not lifted up and remains in the shell is transferred to the terminal side B, and is returned to the huller D to be husked again. Then, the mixed rice in the receiving gutter 16 is supplied by the gutter 20 to the starting end side c of the rotary sorting cylinder a in the lower stage and is sorted again, and the finished rice in the receiving gutter 3 flows from the gutter 23 into the receiving gutter 21 and is transferred to the lower stage. The finished rice is combined with the re-sorted rice and taken out of the machine by the finished rice thrower 7. Further, rice that cannot be lifted up into the receiving gutter 21 in the lower rotary sorting cylinder a moves to the terminal side D and is returned to the mixed rice conveyor 6.

In this way, the mixed rice is sorted into brown rice and paddy. At this time, the sensing plate 4 is placed in the rotary sorting cylinder A while its lower surface is in contact with the upper surface of the fluidized bed P, as shown in FIG. The gate valve 2 operates around the support shaft 24 to follow the height fluctuations of the upper surface caused by the increase and decrease of the mixed rice supplied therein, and this operation is transmitted to the gate valve 2 through a link 29 with a turnbuckle 28 interposed therebetween. In this way, it is tilted about the rotation support shaft 25, and its inclination angle is automatically changed and adjusted.

In other words, when the mixed rice flow rate is small, the slope of the gate valve 2 is gentle, and when it is high, the slope of the gate valve 2 becomes steep, and the rice falls in a parabola as shown by arrow T, and is received into the receiving gutter 3. The rice sorting accuracy is improved, and the flow rate of mixed rice in the rotary sorting cylinder A is stabilized by adjusting the amount received into the receiving trough 3.

Further, when the shape of the grain changes from large to small, the turnbuckle 28 is operated to change and adjust the relative attitude of the gate valve 2 to the sensing plate 4.

That is, if the particle size is large, the slope of the gate valve 2 is made gentle, and if the particle size is small, the slope is made steeper to improve the sorting accuracy and stabilize the flow rate in the cylinder.

(G) Effects of the Invention As described in detail above, the present invention has a method in which a receiving gutter having a gate valve whose inclination can be freely changed is inserted and hung horizontally in a pot-hole type rotary sorting cylinder. In the grain sorter, the lower surface of the rotary sorting cylinder is deviated toward the starting end of the rotary sorting cylinder in the rotational direction of the rotary sorting cylinder and comes into contact with the upper surface of the flowing fluidized bed. erecting a sensing plate that follows and operates, and interlocking and interlocking the sensing plate and the gate valve with a link interposed with a turnbuckle, so that the inclination angle of the gate valve is automatically changed by the operation of the sensing plate; In addition, since the relative attitude of the gate valve with respect to the sensing plate can be changed and adjusted by the turnbuckle, the gate valve is operated by the sensing plate whose lower surface is in contact with the upper surface of the fluidized bed and operates in accordance with the height fluctuations of the upper surface. By automatically changing the inclination angle of the rice grain sorter, it is possible to stabilize the flow rate of mixed rice inside the rotary sorting barrel and provide a highly efficient grain sorting machine with high sorting accuracy. If conditions such as grain size change, the relative attitude of the gate valve to the sensing plate can be changed and adjusted by operating the turnbuckle, making it possible to respond not only to fluctuations in flow rate but also to differences in grain conditions. It was.

[Brief explanation of the drawing]

The drawings are for illustrating embodiments of the present invention, and FIG. 1 is a cross-sectional view of a rice huller and sorter, FIG. 2 is a side sectional view of a part thereof, and FIG. 3 is an enlarged sectional view of the main part. , FIG. 4 is a perspective view taken along the - line in FIG. 3, FIG. 5 is a sectional view taken along the - line in the same figure, and FIG. 6 is an explanatory view of the operation of FIG. 5. A... Rotating sorting cylinder, 2... Gate valve, A... Starting end side, E... Rotating direction, P... Fluidized bed, 4... Sensing plate, 28... Turnbuckle, 29... Link.

Claims (1)

[Claims] 1 In a grain sorting machine configured by horizontally inserting a receiving gutter 3 having a gate valve 2 that can freely change its inclination on the grain receiving side in a pot-hole type rotary sorting cylinder A, the inside of the rotary sorting cylinder A is The lower surface of the rotary sorting cylinder A is located near the starting end of A.
A sensing plate 4 is installed which contacts the upper surface of the fluidized bed P which is flowing while being deviated toward the rotational direction E of the fluidized bed P, and operates by following the height fluctuation of the upper layer surface, and the sensing plate 4 and the gate valve 2 Link 2 with turnbuckle 28 interposed
9, the inclination angle of the gate valve 2 is automatically changed by the operation of the sensing plate 4, and the relative attitude of the gate valve 2 with respect to the sensing plate 4 can be changed and adjusted by the turnbuckle 28. An automatic sorting adjustment device in a grain sorting machine characterized by the following.