JPS6122694Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a revolving type rice sorting device in which the angle of a rice sorting plate is adjustable.

Conventionally, in this type of rice sorting device, a rice sorting plate having a large number of inclined protrusions on the surface is provided at an angle, and the rice sorting plate is swung by a swinging device to supply rice to the upper surface of the rice sorting plate. However, in this rocking device, an eccentric crank pin is fixed to a rotating crankshaft, and when this crank pin is engaged with a paddy sorting plate to rotate and rock, Since the crank pin and the paddy sorting plate were engaged with each other through an intervening elastic body, the angle of the crank pin did not change even if the sorting angle of the paddy sorting plate was changed, so the elastic body of the engaging part In addition, the vertical movement of the swinging part could not be absorbed, causing noise vibrations, making it impossible to provide smooth rotational movement, and causing problems in paddy sorting. Furthermore, there were other drawbacks such as twisting action occurring on the crankshaft, which reduced durability, and the mechanism of the swinging device becoming larger, increasing the overall height of the machine.

In view of the above-mentioned drawbacks, this invention eliminates the bulge in the engagement part between the paddy sorting plate and the swinging device, absorbs vertical movement, prevents noise vibration, and provides smooth rotational movement to sort paddy. The aim is to do it well.

In order to achieve the above-mentioned purpose, this invention was developed in a rice sorting device in which the sorting angle of the rice sorting plate 1 that performs swinging sorting by rotating is adjustable. is engaged with the crank pin 5 via the spherical bearing 7 with the rice sorting plate 1 whose sorting angle can be freely adjusted, and between the spherical bearing 7 and the crank pin 5,
It is provided so as to be slidable in the axial direction of the crank pin 5 via a slide bearing 131, so that the rice sorting plate 1 is driven to rotate by the rotation of the crank shaft 3.

Hereinafter, one embodiment of this invention will be explained with reference to the drawings.

1 to 3 show a rice hulling machine equipped with an embodiment of this invention. That is, the machine frame 9 includes a lower machine frame 11 and an upper frame 13 fixed above the lower frame 11, and is formed in a box shape.
A side cover 15 is attached to the outside of the lower machine frame 11, a top cover 17 is attached to the upper surface, and a removing device 19 and a grain sorting device 21 are provided inside. Further, a paddy sorting device 23 is housed inside the upper frame 13.

The removal device 19 is constructed as follows.
In other words, the lower machine frame 11 has two de-rolls 2.
5 and 25 are rotatably provided facing each other, and are rotated by the drive of a motor (not shown) to remove the paddy between them. Unrolled 25, 25
Above it are a paddy supply funnel 27 and a sorting paddy receiving funnel 2.
A removing funnel 31 is provided to receive the paddy thrown in from 9, and the opening 33 of the removing funnel 31 is connected to the shutter 3.
It is opened and closed by 5. A wind selection chamber 37 is provided below the de-rolls 25, 25, and the de-roll 2
5, 25 The brown rice, paddy, and chaff falling from the end of the inclined plate 39 below are sorted, and the mixed rice, which is a mixture of brown rice and paddy, is sorted into paddy by an elevator 43 from the No. 1 spiral 41 provided at the bottom directly below. It is transported to the device 23. The rice hulls are discharged from a rice husk duct 45 that communicates with the winnowing chamber 37. The paddy mixed with chaff enters the second spiral 47 provided at the bottom on the leeward side of the first spiral 41 and is discharged to the outside, and is returned to the paddy supply funnel 27 again.

The paddy sorting device 23, as shown in FIGS. 5 and 6, is constructed as follows. That is, below the discharge funnel 49 of the elevator 43, multi-layered paddy sorting plates 1, 1, . . . are provided so as to be tilted back and forth and swingable. A supply port 51 opens directly below the discharge funnel 49 and communicates with each paddy sorting plate 1, 1, . Distribute and supply to... The rice sorting plate 1 is provided with a large number of inclined protrusions 53, 53, ... on its surface, and sorts the mixed rice by rocking motion.
The rice is sorted into brown rice, mixed rice, and paddy in order from the top to the bottom along the inclined edge, and the brown rice is sent from the brown rice outlet 55 to the brown rice receiver 57 to the grain sorting device 21,
The mixed rice enters the mixed rice receptacle 61 from the mixed rice outlet 59 and is returned to the elevator 43 via the mixed rice return chute 63. The paddy is sorted from the paddy outlet 65 to the paddy receiving funnel 2.
9 and is reduced to the escape funnel 31. Brown rice socket 5
A switching valve 67 is swingably provided between 7 and the mixed rice receptacle 61, and is switched to the mixed rice receptacle 61 when the mixed rice is discharged from the brown rice outlet 55 at the start of work or the like. In addition, the partition wall 69 between the sorting paddy receiving funnel 29 and the mixed rice receiving port 61 is provided appropriately lower than the outer wall 71, and a communication passage 73 is provided at the upper part so that the separation wall 69 is connected when the removing funnel 31 is filled with paddy. aisle 73
Overflowing from the mixed rice return chute 63 to elevator 4
3. In the rice sorting plate 1, the lower ends of suspension rods 79 are pivotally attached to both sides of the sloping lower end 77 of the lower platform 75 by pins 81, and the lower ends of the suspension rods 79 are pivotally connected to both sides of the sloping upper end 83, respectively.
The lower end of 5 is pivotally connected by a pin 87. A shaft 91 is rotatably supported on the upper frame 13 via brackets 89, 89, and the upper ends of suspension rods 79, 79 are pivotally connected to the ends of arms 93, 93 fixed to the shaft 91 by pins 95. ing. Further, a shaft 99 is rotatably supported on the upper frame 13 via brackets 97, 97, and pins 103 are attached to the ends of arms 101, 101 fixed to the shaft 99.
The upper ends of the suspension rods 85, 85 are pivotally connected. The shafts 91 and 99 have arms 10 extending upwardly.
5 and 107 are fixedly provided, respectively, and a connecting rod 1 is connected to the end via shafts 109 and 111, respectively.
Both ends of 13 are pivotally connected. Further, an arm 115 is fixed to the shaft 99, and an adjustment rod 119 is pivotally connected to the end portion by a shaft 117. Adjustment rod 119 is axis 1
17 so that the length can be adjusted freely, and the other end is a universal joint 1.
It is connected to the handle 123 via 21.
The handle 123 is rotatably supported by the upper frame 13 via a bearing 125, and by rotating the handle 123, the inclination angle of the paddy sorting plate 1 is adjusted. The rice sorting plate 1 is oscillated by a oscillating device 127. The swinging device 127 is configured as follows. That is, the crank pin 5 is engaged with a bracket 129 provided on the lower surface of the base portion 75 via a spherical bearing 7 and a slide bearing 131. There are brackets 133, 133 on the lower machine frame 11.
A crankshaft 3 is supported via a pulley 13.
5 is rotated by a motor (not shown) via a belt 137. The crank pin 5 is eccentrically fixed to an arm 139 fixed to the end of the crankshaft 3 in a direction parallel to the crankshaft 3.
The rotation of the paddy sorting plate 1 causes the rice sorting plate 1 to swing. Note that the center points of the pins 81, 87, 95, and 103 are respectively _A1 , _A2 , _B1 , _{and B2} , the center point of _A1 - _A2 is A, the center point of _B1 - _B2 is B, The center line of the crankshaft 3 is configured to pass through A and B.

The grain sorting device 21 is constructed as follows. That is, in the lower machine frame 11 there is a sorting cylinder 141,
141 are inclined and rotatably arranged side by side. The sorting cylinder 141 has an outer periphery formed of wire mesh with a suitable mesh, and a supply hopper 143 communicates with the inclined upper end. The supply hopper 143 receives brown rice discharged from the brown rice receiving port 57 of the paddy sorting device 23 and transfers it to the sorting cylinder 14.
Supply to 1. As the brown rice rolls and flows down inside the sorting tube 141, straw waste mixed in the brown rice passes through the mesh and is removed, and is sent to the rice husk duct 45 by the sorting wind and discharged to the outside. The sorted brown rice is discharged from the sorted rice outlet 145 at the end of the sorting cylinder 141.

In the above embodiment, the paddy put into the paddy supply funnel 27 is removed by the removal device 19, separated by wind in the wind selection chamber 37 at the lower part, and the rice hulls are removed from the rice husk duct 4.
5, the paddy is discharged from the second spiral 47, and is fed into the paddy supply funnel 27 again. The mixed rice containing brown rice and paddy is sent from the first spiral 41 via the elevator 43 to the paddy sorting device 23 where it is shake sorted.
The sorted paddy is returned to the removal device 19 from the paddy outlet 65, and the mixed rice is returned to the elevator 43 from the mixed rice outlet 59.
After that, it is returned to the paddy sorting board 1. The brown rice is sent to the grain sorting device 21 from the brown rice outlet 55, and mixed straw waste etc. are removed, and then it is discharged from the sorted rice outlet 145.

Regarding the operation of the swinging device 127, when the crankshaft 3 is rotated via the belt 137 and the pulley 135 by the drive of a motor (not shown), the crank pin 5 performs a circular motion, and the bracket 12
Paddy sorting plate 1 that engages with crank pin 5 via 9
rotates and oscillates about the axis of the crankshaft 3. In this case, the crank pin 5 is connected to the bracket 129 by the spherical bearing 7 and the slide bearing 13.
1, vertical movement can be absorbed. Further, by rotating the handle 123, the arm 115 rotates, and the connecting rod 113
The shafts 99 and 91 rotate through the suspension rod 8.
Although the angle of inclination of the rice sorting plate 1 changes through the gears 5 and 79, the spherical bearing 7 and the slide bearing 131 prevent the engagement portion from being bent.

As described above, this invention has been proposed in a rice sorting device in which the sorting angle of the rice sorting plate is freely adjustable, and the rice sorting plate is rotated to perform rocking sorting. The rice sorting plate is engaged with the rice sorting plate whose sorting angle of the sorting plate can be adjusted freely, and is slidable in the axial direction of the crank pin with a slide bearing interposed between the spherical bearing and the crank pin. Since this is a revolving type rice sorting device that drives the paddy sorting plate in rotation, the paddy sorting plate moves up and down along the slide bearing while maintaining the same slope during rotation sorting. The movement improves the sorting accuracy, and even if the inclination angle of the rice sorting plate is changed, there is no bending in the engagement part, and vertical movement is absorbed, noise vibration is eliminated, and the inclination angle is smooth. Since the rotating and oscillating motion can be performed, the paddy on the paddy sorting plate does not generate unnecessary vibrations, and the paddy can be sorted well.

Therefore, it is possible to reliably obtain a change in the sorting state due to a change in the angle of the sorting plate, and there is no vibration or the like caused by the angle change, so that the sorting on the sorting plate can sort brown rice, brown rice, etc. according to the adjusted sorting condition. This is done so that the mixed rice and paddy are accurately distributed, and this distribution is not disrupted by noise vibrations, making it possible to obtain good sorting performance. In addition, since the spherical bearing on the crank pin supports the rice grain sorting plate so that its inclination angle can be changed freely, the drive interlocking structure of the rice sorting plate can be simplified.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but can be implemented in other embodiments as well. Further, the symbols shown in the claims do not limit the technical scope of the present invention.

[Brief explanation of the drawing]

Figures 1, 2, and 3 are each a part of the present invention.
A side view, a front view, and a plan view of a rice huller equipped with an embodiment; FIGS. 4 and 5 are respectively a plan view and an enlarged side view of an embodiment of the present invention; FIG. 6 is a front cross-section of the main parts. It is a diagram. Explanation of the symbols representing the main parts of the drawing, 1...
Paddy sorting plate, 3... crankshaft, 5... crank pin, 7... spherical bearing.

Claims (1)

[Scope of utility model registration request] In a rice sorting device in which the sorting angle of a rice sorting plate 1 that performs oscillating sorting by rotating is freely adjustable, a crank pin 5 is provided eccentrically on a crankshaft 3.
is engaged with the rice sorting plate 1 whose sorting angle of the sorting plate 1 can be freely adjusted with respect to the crank pin 5 via the spherical bearing 7, and a slide bearing 131 is provided between the spherical bearing 7 and the crank pin 5. A rotating type rice sorting device characterized in that the rice sorting plate 1 is provided so as to be slidable in the axial direction of a crank pin 5 interposed therebetween, so that the rice sorting plate 1 is driven to rotate by the rotation of the crank shaft 3.