JP2003103185A - Rotary oscillating selector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotary oscillating selector which is an oscillating angle adjusting device applied to a selecting vessel having circular selecting plates arranged in a core shape and can be made compact when the selecting vessels are superposed in multistage. SOLUTION: The rotary oscillating selector 1 is provided with the selecting vessel 4 having the selecting plates 5 arranged in the cone shape and a driving means 6 for rotary oscillating the selecting vessel 4. A mixture composed of unhulled rice and hulled rice is supplied to a prescribed position of the selecting vessel 4 and respectively the hulled rice is discharged from a periphery of the selecting vessel 4 and the unhulled rice is discharged from a central bottom part 2 of the selecting vessel 4. The driving means 6... is constituted of a plurality of driving means 6 supporting a peripheral part 3 of the selecting vessel 4 at equal spaces and gives oscillating motion to the selecting vessel 4 by successively driving the plurality of driving means 6. Further the driving means 6 is provided with an oscillating angle adjusting mechanism 40 which can change and adjust the oscillating angle in the oscillating motion of the selecting vessel 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oscillating sorter for sorting mixed rice after hulling into paddy and brown rice, and in particular, a conical sorting plate is rotatively swung to sort the paddy and brown rice. A rotary swing sorter.

[0002]

2. Description of the Related Art The applicant of the present invention rotationally rocks a conical sorting plate composed of a plurality of segments to provide a rotary rocking sorting machine for sorting mixed rice after hulling into paddy and brown rice. It is proposed by Japanese Patent Application No. 11-156994. This rotary rocking sorter is provided rotatably on a vertical rotary shaft, a drive unit for rotationally driving the rotary shaft, and a rotary shaft, and is offset from the axial center of the rotary shaft by a certain distance. A plurality of eccentric parts and rotatably attached to each eccentric part,
A circular sorting container with a mortar-shaped sorting plate, a holding means for preventing free rotation of the sorting container, an inclination angle adjusting means for adjusting the inclination angle of the sorting plate segment,
including. A level sensor for detecting the layer thickness of the mixed rice on the sorting plate is provided, and the output from the level sensor controls the inclination angle adjusting means to maintain the mixed rice within a predetermined layer thickness range.

In this type of rotary oscillating sorter, the inclination angle adjusting means is provided for each sort plate, so that there is a drawback that the manufacturing cost increases. Further, since the tilt angle adjusting means is arranged below the sorting plate, it is required to arrange two adjacent sorting plates with a large enough space between them to accommodate the tilt angle adjusting means. It
This makes it difficult to make the entire rotary rocker sorter a compact form.

Further, Japanese Utility Model Publication No. 60-36399 discloses a device for changing only the rocking angle .theta.2 of the lateral side of the grain selection plate without changing the lateral inclination angle .alpha. Of the grain selection plate. And a swing adjusting device in a grain swing sorting machine. The change of the rocking angle θ2 is optimized to select the mixed rice flowing in the longitudinal direction on the grain selection plate into the paddy and the brown rice.
However, this configuration cannot be applied to a conical sorting plate.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is a rotary swing sorter of the type in which a sorting container provided with a mortar-shaped sorting plate is swung in a swing manner, and the swinging of the sorting container in the swinging motion is performed. It is to provide a swing angle adjusting mechanism configured to change an angle.

A further object of the present invention is to provide a rotary rocking sorter which allows a plurality of sorting containers to be arranged in a multi-stage and compact form.

[0007]

The above objects of the present invention are as follows.
At least one sorting container having a mortar-shaped sorting plate and having a raised peripheral edge portion, and a drive means for rotating and swinging the sorting container are provided. And a mixture of brown rice at a predetermined position to the sorting container to separate paddy and brown rice, the brown rice from the periphery of the sorting container,
A rotary oscillating sorter adapted to discharge paddy from a central portion of a sorting container, wherein the driving means comprises a plurality of oscillating drives provided at positions equiangularly spaced around the sorting container. Each of the swing drive devices is operatively connected to a raised peripheral portion of the sorting container at an upward inclination angle toward the sorting container to support the sorting container, and sequentially with a predetermined phase delay. Each of the rocking drive devices is activated to generate a rocking motion that is transmitted to the sorting container.
It is achieved by providing a rotary rocking sorter, which is provided with a rocking angle adjusting mechanism for maintaining the device at the tilt angle and for changing the rocking angle in the rotary rocking of the sorting container. It

While the sorting container is rotating and rocking, the mixed rice is supplied to the sorting plate of the sorting container, and the brown rice having a small particle size and a large specific gravity is centrifugally exerted on the sorting plate toward the raised peripheral portion of the container. It is carried and leaves the sorting container through the brown rice outlet. The paddy with a large particle size and a small specific gravity slides down a mortar-shaped sorting plate and is discharged from the central portion of the sorting container. When the friction coefficient, water content and specific gravity of rice change, such as when the rice variety changes, the swing angle in the rotary swing of the sorting container is adjusted by the adjustment operation of the swing angle adjustment mechanism on the sorting plate. The mixed rice can be modified to separate brown rice and paddy in the best condition.

In a preferred embodiment of the present invention, each of the rocking drive devices is provided on a support frame rotatably connected to a machine frame of the rotary rocking sorter by a pivot pin, and an electric motor and an electric motor. Gearbox for transmitting the rotation of the gearbox, a drive shaft connected to the output shaft of the gearbox and having a crank pin at the tip, and a swing shaft rotatably connected to the crank pin of the drive shaft and having an eccentric shaft. A moving plate and means for preventing rotation of the oscillating plate during rotation of the crankpin in order to draw an elliptical locus on the eccentric axis, and elastically provided on the raised peripheral portion of the sorting container. And means for operatively connecting the rocking drive device to the sorting container, including a follower connected to and rotatably connected to the eccentric shaft. The swing angle adjusting mechanism includes an adjusting screw mechanism for rotating the supporting frame with its pivot pin as a fulcrum to change the inclination angle of the supporting frame, and the adjusting screw mechanism is movable to the supporting frame. A female screw element attached, a vertical adjustment screw shaft rotatably attached to the skeleton of the rotary rocking sorter, and having a male screw portion screwed to the female screw element; and an upper end of the adjustment screw shaft, A handle for turning the adjusting screw shaft.

Thus, when the handle is turned, the support frame can be rotated about its pivot pin as a fulcrum to change the tilt angle of the swing drive device by the screw action of the male screw and the female screw element of the adjusting screw shaft. Thus, the swinging angle of the sorting container can be adjusted quickly and easily.

In a preferred embodiment, the screw shaft of the adjusting screw mechanism comprises a transmission mechanism consisting of a sprocket chain which interlocks with each other to rotate the screw shaft synchronously.

In another embodiment, the adjusting screw mechanism is rotatably attached to the machine frame of the rotary rocking sorter and has an internal thread element having an internal thread, and is rotatably attached to the support frame, and A support element having an enlarged through hole,
An adjusting screw shaft having a male screw portion threaded through the enlarged through hole and screwed into the female screw, and a lock nut means for fixing the adjusting screw to the support element are included. With the lock nut means loosened, the adjustment screw shaft is rotated to screw or loosen the male screw portion into the female screw element, whereby the support frame rotates about its pivot pin as a fulcrum and the tilt angle of the swing drive device is increased. The swing angle of the sorting container can be adjusted quickly and easily.

In a further preferred embodiment of the present invention, a plurality of sorting containers are arranged in multiple stages, and a plurality of pairs of vertical swing driving devices are provided at positions equiangularly spaced around the sorting container, and each pair of sorting containers is provided at an equal angular interval. A vertical swing drive device is operatively connected to the multi-stage sorting container via the connecting member and an elastic joint,
Further, a common swing angle adjusting mechanism is provided for maintaining the swing drive device at the tilt angle and for changing the swing angle in the rotary swing of the sorting container.

In a preferred embodiment of the present invention, a plurality of sorting containers are arranged in multiple stages, and a plurality of pairs of vertical swing drive devices are provided at positions equiangularly spaced around the sorting containers, and each pair of sorting swing driving devices is provided. Each of the vertical swing drive devices is operatively connected to the multi-stage sorting container via the connecting member and the elastic joint, and in order to maintain the swing drive device at the inclination angle, the rotation swing of the sorting container is performed. A separate swing angle adjusting mechanism for changing the swing angle in motion is provided.

[0015]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the present embodiment, a rotary rocking sorter for mixed rice of paddy and brown rice is described, but this rotary rocking sorter is a mixture other than mixed rice, for example, wheat and impurities, rubber and impurities, It is obvious that the method can be applied to the separation of wood chips and contaminants, buckwheat and buckwheat husks, plastic and contaminants, and the like.

FIG. 1 is a schematic plan view of a rotary rocking sorter constructed according to the present invention, and FIG. 2 is a schematic side view of the rotary rocking sorter. Referring to FIGS. 1 and 2, a rotary rocking sorter 1 includes a center bottom portion 2, a mortar-shaped sort plate 5 having a large number of recesses on the surface, and a raised peripheral edge portion 3.
A plurality of sorting containers 4 arranged in multiple stages, driving means 6 for rotating and swinging the sorting containers 4, and a sorting plate 5.
A supply means 7 for supplying the mixed rice of paddy and brown rice from above, a circular paddy discharge part 8 for discharging the paddy from the central part 2, and a brown rice from the raised peripheral edge part 3 of the sorting container 4. And a brown rice discharge port 9 for Brown rice discharge gutters 11 are arranged on the raised peripheral edge portions 3 of the respective sorting containers 4, and the brown rice from each brown rice discharge gutter 11 is discharged outside the machine through a common brown rice discharge pipe 12. The paddy draining gutter 13 is provided in the lowermost paddy collecting unit 8A for collecting and receiving the paddy from the paddy discharging unit 8 of the sorting plate of the sorting container.
Is connected to discharge paddy through the paddy discharge gutter 14 to the outside of the machine.

The drive means 6 is composed of a pair of vertical swing drive devices 6A and 6B, which are provided around the sorting container 4 at equal angles, in this example, at three places spaced 120 ° apart (FIG. 1). reference). The three pairs of rocking drive devices 6A and 6B respectively include vertical columns 17A and 17A of the machine frame 10 of the rotary rocking sorter.
It is provided on a support frame 19 having arms 20A, 20B pivotally connected to B by pins 21A, 21B, and is held at an upward inclination angle toward the sorting container 4 by a swing angle adjusting mechanism 40. It Each pair of swing drives is operatively connected to the raised peripheral edge 3 of the sorting container 4 to support the sorting container. The three pairs of oscillating drives are sequentially actuated with a predetermined phase delay to generate an elliptical oscillating movement, which oscillating movement is laterally transmitted to the sorting container 4 via an operative elastic connection, thus sorting. Each container 4 is imparted with a wobbling rotational rocking motion. In the operative elastic connection, each peripheral portion 3 of the multi-stage sorting container 4 is connected to a vertically elongated connecting member 16 connected to a pair of vertical swing drive devices via an elastic joint 15 made of urethane rubber. It is achieved by

Referring to FIGS. 4, 5 and 7, each of the swing driving devices 6A and 6B is connected to a motor 26 and a gear box 27 fixed to the bottom of the support frame 19 and an output shaft of the gear box. Drive shaft 28, which is rotatably supported by the support frame 19, has a crank pin 31 at its tip, and has a counterweight 29 fixed at the bottom by a set screw 30, and a crank pin 31 of the drive shaft 28.
A swing plate 32a that is rotatably connected to and has an eccentric shaft 32, and a means for preventing the swing plate 32a from rotating during rotation of the crank pin 31 in order to draw an elliptical locus on the eccentric shaft 32. And, including. The rotation prevention means is the swing plate 3
It is composed of a rod 32c extending from 2a, and a pair of rubber rollers 32b, 32b rotatably provided on the support frame 19 for movably holding the rod from both sides.
The eccentric shaft 32 includes a mounting hub 34 fixed to the connecting member 16.
It is rotatably received from below by a follower 33 which is rotatably connected by a pin 35. The pin 35 is provided so that the support frame can be pivoted about the pivot pins 21A and 21B.
Are aligned with the pivot pins 21A, 21B.

The rotation of the motor 26 is transmitted to the drive shaft 28 via the gear case 27, and the crank pin 31 is connected to the drive shaft 28.
The eccentric shaft 32 is eccentrically rotated by rotating the oscillating plate about the axis of the oscillating plate. Thus, the eccentric rotation of the eccentric shaft 32 is transmitted to the follower 33, and the connecting member 1
A swinging motion is applied to the sorting container via the elastic joint 6 and the elastic joint 15 as indicated by an arrow in FIG.

Referring to FIGS. 2, 4 and 5, the swing angle adjusting mechanism 40 includes a support frame 1 for changing the tilt angle of the support frames 19 of the pair of upper and lower swing drive devices.
It includes an adjusting screw mechanism 40A for rotating 9 about the pivot pins 21A and 21B as fulcrums. Adjustment screw mechanism 40
A is rotatably supported by the vertical bearings 38 and 39 of the machine frame 10, and is vertically movably attached to a vertical adjustment screw shaft 18 having a male screw portion 24 and a bracket 22 of a support frame 19 for adjustment. A male threaded portion 24 of the screw shaft and a female threaded element 25 that is threadedly engaged. Adjustment screw shaft 18
Comprises an adjusting handle 23 for turning the screw shaft.
The rotation of the adjusting screw shaft 18 causes the female screw element 25, which is screwed with the male screw portion 24 thereof, to move up and down along the screw shaft to move each of the supporting frames 19 to the pivot pins 21A, 21B thereof.
Is used as a fulcrum to change the tilt angle of the swing drive device.

A sprocket 36 is provided adjacent to the lower end of each of the three pairs of adjusting screw shafts 18 for swing driving devices, and a chain 37 is stretched over the three sprockets 36. Thus, one rotation of the adjusting screw shafts 18 is transmitted by the sprocket chain synchronously to the other two adjusting screw shafts, so that the three adjusting screw shafts 18 have equal amounts of rotation.

In a modified embodiment of the invention shown in FIGS. 6, 7 and 8, an adjusting screw mechanism 40a is provided on each rocking drive and pivots on the machine frame 10 of the rotary rocking sorter. Internally threaded element 25, which is attachable and has an internal thread
a, a support element 22c that is rotatably attached to the bracket 22a of the support frame 19 and has an enlarged through hole 22b, and a male screw portion 24a that penetrates the enlarged through hole 22b and is screwed into the female screw of the female screw element 25a. An adjusting screw shaft 18a having a lock nut means 18b for screwing onto an external thread of the adjusting screw shaft 18a for fixing the adjusting screw shaft to the support element 22c. The adjusting screw shaft 18a is preferably provided with, for example, a hexagonal head cooperating with a wrench in order to easily rotate the adjusting screw shaft 18a. Lock nut means 18b
In the state where the support screw 19 is loosened, the adjustment screw shaft 18a is turned with a wrench to screw or loosen the male screw portion 24a into the female screw element 25a, so that the support frame 19 is rotated with the pivot pins 21A and 21B as fulcrums. Thus, the tilt angle of the swing drive device can be individually changed. After adjustment
Tighten the lock nut 18a to hold the adjusting screw shaft in place. In order to ensure the same tilt angle for all the swing drive devices, the angle scale S is attached to the support frame 19 and the pointer P is attached to the column of the machine frame 10, and the scales can be adjusted through the window P1.

Next, the operation of the rotary swing sorter according to the present invention will be described. When the swing drive device imparts a rotary swing motion to the sorting container 4, and the mixed rice of paddy and brown rice, which is an object to be sorted, is dropped onto the sorting plate 5 in the sorting container 4 by the supply means 7, Acceleration increases toward the outer periphery of the sorting container 4, and the sorting plate 5 has a mortar-shaped slope, so that brown rice with a small grain size and a large specific gravity is radially moved toward the raised peripheral portion of the sorting container by centrifugal action. It is conveyed to the outside and discharged from the brown rice discharge port 9 through the brown rice discharge gutter 11 and the brown rice discharge cylinder 12 to the outside of the machine. Paddy with large particle size and small specific gravity
The sorting plate 5 slides down and is conveyed toward the center, and finally is discharged from the paddy discharge section 8 through the paddy collection section 13 and the paddy discharge tube 14 to the outside of the machine.

In the sorting operation, unless the physical properties such as the water content and the friction coefficient of the objects to be sorted are changed, the sorting ability of the rotary rocking sorter does not change. However, when the brown rice becomes difficult to be transported toward the periphery of the sorting container 4 due to a change in water content or a coefficient of friction such as mixed rice of different varieties, the sorting container 4 is increased in order to enhance the transporting power of the mixed rice. Perform the operation to loosen the swing angle of. On the other hand, if the paddy is transported together with the brown rice toward the periphery of the sorting container 4, the swinging angle of the sorting container 4 is made steep in order to suppress the transporting force of the mixed rice.

When the adjusting screw shaft 18 of the swing angle adjusting mechanism is rotated by the operation of the handle 23 to change the inclination angle of the support frame 19, the follower 33 causes the pin 35 of the mounting hub 34 to move.
The swing angle is changed by turning around. Referring to FIG. 2, the position of the support frame 19 is changed from the position indicated by the solid line to the position indicated by the alternate long and short dash line, and the swing angle α is changed to β.

According to the present invention, the operation of the handle does not adjust the angle for each sorting container but changes the swing angle for all the multi-stage sorting containers, so that the angle can be easily adjusted in a short time. It can be adjusted, and the separation and sorting of brown rice and paddy on the sorting board can be optimized. Similar advantages are obtained in the case of a modified embodiment in which the individual adjusting screw shafts are operated for adjusting the rocking angle. Furthermore, since the driving means is arranged around the sorting container, in the case of a multi-stage configuration, the gap between the sorting containers can be reduced, and the rotary rocking sorting machine as a whole can be made compact. Further, it becomes possible to improve the sorting ability as compared with the one-stage type.

From the above description, according to the present invention, the drive means imparts a swinging motion to the multi-stage sorting container, and the swing angle adjusting mechanism can change and adjust the swinging angle of the multi-stage sorting container. It can be seen that the present invention provides a rotary rocking sorter configured as described above.

[Brief description of drawings]

FIG. 1 is a schematic plan view showing a rotary swing sorter of the present invention.

FIG. 2 is a schematic side view showing a rotary rocking sorter of the present invention.

FIG. 3 is a schematic diagram showing a swinging motion of a sorting container.

FIG. 4 is a schematic view seen from the direction of arrow A in FIG.

5 is a perspective view showing a main part of the rotary rocking sorter of FIG. 4. FIG.

FIG. 6 is a schematic side view of a modified embodiment of the rotary rocking sorter of the present invention.

FIG. 7 is a schematic view seen from the direction of arrow B in FIG.

FIG. 8 is an enlarged partial sectional view of a portion of FIG.

[Explanation of symbols]

1 rotation rocking sorter 2 Central bottom 3 peripheral part 4 sorting containers 5 sorting board 6 Drive means 6A swing drive 6B swing drive 7 Supply means 8 paddy discharge section 9 Brown rice outlet 10 machine frames 11 Brown rice discharge gutter 12 Brown rice discharge tube 13 Paddy discharge gutter 14 paddy discharge tube 15 Elastic joint 16 connecting plate 17 props 18 Swing angle adjustment shaft 18a Adjustment screw shaft 18b lock nut 19 Support frame 20 arms 21 pivot pin 22 bracket 22a bracket 22c support element 23 Adjustment handle 24 Male thread 24a Male screw part 25 Female thread element 25a Female thread element 26 motor 27 gearbox 28 Drive shaft 29 Balance weight 30 fixing screw 31 crank pin 32 eccentric shaft 32a swing plate 32b rubber roller 32c rod 33 Follower 34 mounting hub 35 pin 36 sprockets 37 chains 38 bearings 39 bearings 40 Swing angle adjustment mechanism 40A adjusting screw mechanism 40a adjusting screw mechanism

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Chozaburo Ikuta             Hiroshima Prefecture Higashihiroshima City Saijo Nishihonmachi 2-30 Stock             Inside the company Satake (72) Inventor Yuri Yamaguchi             Hiroshima Prefecture Higashihiroshima City Saijo Nishihonmachi 2-30 Stock             Inside the company Satake F-term (reference) 4D021 JA05 JA08 JA09 JB01 JB03                       KA02 KA03 KA18 KB10 LA08                       LA11 MA05 MA08 NA03                 4D043 GA02 GB32 JA01 JA16

Claims (8)

[Claims] 1. A rotation of a sorting container, comprising at least one sorting container having a mortar-shaped sorting plate and having a raised peripheral edge portion, and drive means for rotating and swinging the sorting container. During shaking, a mixture of paddy and brown rice is supplied to the sorting container at a predetermined position to separate the paddy and brown rice, and the brown rice is discharged from the peripheral edge of the sorting container and the paddy is discharged from the central portion of the sorting container. An oscillating sorting machine, wherein the drive means comprises a plurality of oscillating driving devices provided at positions equiangularly spaced around the sorting container, each of the oscillating driving devices being a sorting container. With an upward tilt angle towards
The oscillating motion of the oscillating drive device is operatively connected to the raised peripheral edge of the sorting container to support the sorting container, and is sequentially operated with a predetermined phase delay to generate a swinging motion transmitted to the sorting container. A rotary rocking sorter, each of which is provided with a rocking angle adjusting mechanism for maintaining the device at the tilt angle and for changing the rocking angle in the rotary rocking of the sorting container. 2. Each of the swing drive devices is provided on a support frame rotatably connected to a machine frame of a rotary swing sorter by a pivot pin, and transmits the rotation of the electric motor to the electric motor. A gearbox, a drive shaft having a crank pin at its tip, connected to an output shaft of the gear box, and a swing plate having an eccentric shaft rotatably connected to the crank pin of the drive shaft, Means for preventing rotation of the oscillating plate during rotation of the crank pin so as to draw an elliptical locus on the eccentric axis, and the elastic means is elastically connected to the raised peripheral portion of the sorting container, The rotary swing sorter according to claim 1, further comprising means for operatively connecting the swing drive device to the sorting container including a follower rotatably connected to a shaft. 3. The swing angle adjusting mechanism according to claim 1, further comprising an adjusting screw mechanism for rotating the support frame about its pivot pin to change the inclination angle of the support frame. Rotation rocking sorter. 4. The adjusting screw mechanism has a female screw element movably attached to the support frame, and a male screw portion rotatably attached to a machine frame of a rotary rocking sorter and screwed to the female screw element. The rotary rocking sorter according to claim 3, comprising a vertical adjusting screw shaft and a handle attached to an upper end of the adjusting screw shaft for turning the adjusting screw shaft. 5. The sprocket, wherein the screw shafts of the adjusting screw mechanism are interlocked with each other to rotate the screw shafts synchronously.
The rotary rocking sorter according to claim 4, further comprising a transmission mechanism including a chain. 6. The adjusting screw mechanism is rotatably attached to a machine frame of a rotary rocking sorter, and is internally rotatably attached to an internal thread element having an internal thread and the support frame, and has an enlarged through hole. 4. A support element having: an adjustment screw shaft having a male threaded portion threaded into the female thread through the enlarged through hole; and means for securing the adjustment screw shaft to the support element. The described rotary rocking sorter. 7. A plurality of sorting containers are arranged in multiple stages, a plurality of pairs of vertical swing drive devices are provided at positions equiangularly spaced around the sorting container, and each pair of vertical swing drive devices is provided. ,
To be operatively connected to the multi-stage sorting container via the connecting member and the elastic joint and to maintain the swinging drive device at the tilt angle, and to change the swinging angle of the swinging and swinging of the sorting container. The rotary rocking sorter according to claim 1, further comprising a common rocking angle adjusting mechanism. 8. A plurality of sorting containers are arranged in multiple stages, and a plurality of pairs of vertical swing drive devices are provided at positions equiangularly spaced around the sorting container. Each is operatively connected to the multi-stage sorting container via the connecting member and the elastic joint, and for maintaining the swing drive device at the tilt angle, the swing angle in the rotary swing of the sorting container is set. The rotary rocking sorter according to claim 1, further comprising a separate rocking angle adjusting mechanism for changing.