JPH0632228Y2 - Grain sorter - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention separates and sorts waste grains on the outer peripheral side of the rotary sorting cylinder and fine grains that are sized on the inner peripheral side of the cylinder during rotation. The present invention relates to a grain sorting device such as a rice sorting machine.

[Prior Art] Conventionally, as shown in Japanese Patent Laid-Open No. 61-64374, a grain is put from the upper end into a vertically-arranged sorting cylinder, and waste grain is leaked to the outside of the middle of the sorting cylinder. There was a technology to take out the grain from the lower end side.

"Problems to be solved by the invention" In the conventional technology, a flange is provided so as to project on the outer periphery of the sorting cylinder,
Since it is necessary to drop the waste grains leaking outside the sorting cylinder into the waste rice gutter by the guide of the flange, it becomes a structure to secure the flange mounting width as the storage space of the sorting cylinder,
It is not possible to easily make the external dimensions of the sorting cylinder attachment part compact, and it is necessary to prevent the drop of the sorting accuracy by providing a spiral body inside the sorting cylinder to slow down the fall of the grain. There was a problem above.

"Means for solving the problem" Therefore, the present invention allows the grain to be charged from the upper end side inside the sorting cylinder to be erected and the waste grain to leak to the outside of the middle part of the sorting cylinder, and to be adjusted from the lower end side of the sorting cylinder. In a grain sorting device that takes out grains, upper and lower receiving plates are installed at intervals below the sorting cylinder, and a lower receiving member having an outer diameter smaller than that of the sorting cylinder is connected to the lower end of the sorting cylinder. Is smaller and has an insertion hole in the upper support plate whose opening edge is higher than the upper surface of the upper support plate,
The lower end of the lower receiving member is extended and opened to the upper side of the lower receiving plate through the insertion hole, and the unpolished rice gutter is arranged at a position lower than the lower receiving plate. It is characterized by disposing scrap rice gutters in a low position.

"Operation" Therefore, since the lower receiving member having a diameter smaller than that of the sorting cylinder is penetrated through the upper receiving plate, the outer dimensions of the upper receiving plate and the scrap rice gutter provided on the lower side of the sorting cylinder can be easily reduced and the sorting can be performed. The horizontal width of the cylinder mounting part can be made smaller than the conventional one to easily reduce the outer shape and reduce the manufacturing or transportation cost.
Since the lower receiving member with a diameter smaller than that of the sorting cylinder provides grain drop resistance, it is possible to gently drop the grain on the lower end side of the sorting cylinder without providing a special member such as a conventional spiral body, simplifying the sorting cylinder structure. In addition, it is possible to easily improve the sorting accuracy.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an enlarged explanatory view of the sorting section, FIG. 2 is a side view of the whole,
FIG. 3 is a plan view of the same, and FIG. 4 is a perspective view of the same.
(1) is a rice selection machine, (2) is a brown rice input port opened at the upper rear side of the machine, (3) is a brown rice receiving hopper that receives brown rice from the input port (2), (4) ... is the hopper ( A vertical sorting cylinder for separating and sorting scrap rice such as immature rice and broken rice from brown rice from 3), (5) is a waste rice discharge port for taking out the scrap rice separated and removed by the sorting cylinder (4) ... (6) is a graded brown rice fried conveyor for lifting the graded brown rice sorted by the sorting cylinders (4), (7) is a graded brown rice for temporarily storing the graded brown rice fried by the conveyor (6) tank,
(8) is an unpolished rice discharge port for taking the unpolished rice in the tank (7) out of the machine, (9) is an opening / closing shutter provided in the discharging port (8), and is thrown in through the charging port (2) When the brown rice is fed into the sorting cylinder (4) ..., it becomes a cylinder by the rotary sieving action of the cylinder (4).
It is configured to separate and remove scrap rice on the outside of the mesh surface of (4).

As shown in FIG. 5 to FIG. 8, the selection cylinders (4) ... are provided at four equal intervals around the rotary spindle (10).
The upper receiving member (11) with a closed lid at the upper end of. Brown rice input hole (12
Hollow support shaft (12) with a). Distribution plate (13) and upper assembly
The hexagonal shaft portion (10a) of the main shaft (10) is supported through the (14) so as to be vertically slidable and integrally rotatable (revolving), and the hexagonal shaft portion (10a) has a lower combined body (15). The upper and lower receiving plates (16) (17) are rotatably supported through the lower disk (1
7) The lower ends of the sorting cylinders (4) are rotatably (rotatably) supported via the upper receiving member (18), the hexagonal head (19a) of the rotary support shaft (19), and the support bearing (20). I am letting you. Reference numeral (21) is a reinforcing bolt that keeps the intervals between the upper and lower discs (16) and (17) constant.

The main shaft (10) has a lower end rotatably supported by a base frame (23) fixed to a square frame-shaped machine frame (22) via a holder (24) which is a main shaft boss, and a lower portion of the base frame (23). The reduction gears (27) (28) are attached to the vertical transmission shaft (26) provided in the motor chamber (25) of
The main shaft (10) is interlockingly connected via the. Further, the motor chamber (25) has a drive pulley for driving the grain elevator (6).
It faces the pulley shaft (30) of (29).
(0) is supported by a holder (31), and a pair of deceleration V pulleys (33) (34) are attached to the motor shaft (32a) of the drive motor (32). V-belt (3
5) and the tension pulley (36) through the pulley shaft (3
0) interlockingly connected, while the fried conveyor (6) is provided to be driven to rotate at a constant speed, while the pulley shaft (30) through the disc friction wheel type continuously variable transmission mechanism (37) The speed change shaft (26) is interlockingly connected so that the speed change can be adjusted. The speed change mechanism (37) is attached to the hexagonal shaft portion (26a) of the speed change shaft (26) so as to be slidable in the vertical direction, and has a friction plate (38) having a rubber surface (38a) on the outer peripheral edge thereof, and the pulley shaft (30). A disc (40) that is slidably attached to the left and right of the end face (40a) against the rubber surface (38a) via a compression spring (39).
And a shaft coupling body (44) of the friction plate (38) which is attached to the bottom plate (41) of the rice selection machine (1) through the bracket (42) and the support shaft (43).
A sliding operation plate (47) to be connected to the shaft via a pin (45) and an engaging groove (46), and a base end is fixed to the support shaft (43) and a tip is connected to a lower end of the connecting rod (48). The first swing arm (49) and the main body side are swingably supported via a shaft (50), and one end side thereof is the rod.
(48) A second swing arm (53) having the other end connected to the upper end of the lever guide plate (51) on the left side of the machine body and a sorting adjustment lever (52) facing the outside, lever
(52) Hold the friction plate (38) in the hexagonal shaft part (26a) of the speed change shaft (26).
The rotation of the main shaft (10) is appropriately changed in speed by vertically moving along the axis.

As shown in FIG. 9, the grain-cleaning rice conveyor chamber (54) in which the fried grain conveyor (6) is installed is arranged in front of the motor chamber (25) via a single partition plate (55). Meanwhile, this conveyor room (5
A scrap rice conveyor chamber (57) having a scrap rice fried grain screw conveyor (56) inside is disposed on the left side of 4) via a partition plate (58), and is taken out to the lower part of the sorting cylinder (4). The scrap rice is transferred to the screw conveyor (5
The discharge port (5) on the left side of the machine at approximately the center height through
It is installed so that it can be fried until it is discharged to the outside of the machine. The lower end of the conveyor shaft (59) of the screw conveyor (56) is linked to the motor shaft (32a) via a pair of disc friction wheels (60) (61), and has a rubber surface (60a ) With a friction wheel (60) is attached to the motor shaft (32a),
Attach the other friction wheel (61) to the lower end of the conveyor shaft (59) through the compression spring (62) so that the friction wheel (61) can slide up and down integrally.
The upper end surface of the friction wheel (61) is attached to the rubber surface (60a) by the spring (62).
The conveyor (56) is configured to be driven by the motor (32) by being repressed by force.

Further, the sun gear (63) is integrally fixed to the holder (24),
Planetary gears (64) integrally fixed to the spindles (19).
Are engaged with the sun gear (63) through idle gears (65), respectively, and when the support shaft (19) revolves around the main shaft (10), it rotates in the direction opposite to the revolving direction (a). Each gear (63) (64) (6
Rotating each spindle (19) ... through the 5) and sorting cylinder (4)
The orbital direction (a) and the rotational direction (b) are reverse to each other. The idle gear (65) is attached to the lower disc (17) via the gear shaft (65a).

The rotation speed (n) of each of the selection cylinders (4) is formed to be larger than the revolution speed (N) (n> N).
By making (n) larger than the revolution speed (N) and in the opposite direction, the brown rice in a state of sticking to the outer side of the inner circumference of the cylinder (4) by centrifugal force at the time of revolution is generated in the cylinder (4). It is configured so as to be uniformly stirred by the rotation action in the opposite direction to promote the downward flow to improve both the sorting accuracy and the processing capacity.

Further, waste rice discharging blades are provided on the outer peripheral edges of the upper and lower discs (16) (17).
(66) and straight brown rice discharge blades (67) are installed respectively, and the machine frame (22)
Upper-stage scrap rice gutter (68) and lower-stage unpolished rice gutter (69) that are integrally fixed inside
Each of these blades (66) (67) is faced inside, and the scrap rice outlet (70) to be opened in the scrap rice gutter (68) is replaced with a scrap rice chute (71).
While connecting to the scrap rice intake port (73) to be opened in the conveyor tube (72) of the screw conveyor (56) through, the smoothed rice outlet (74) to be opened at the bottom of the smoothed rice gutter (69) Through the chute (75) to the unpolished rice outlet of the unpolished rice conveyor chamber (54)
(76) is connected to the discharge, the waste rice taken out to the outlet (70) is discharged to the outside of the machine through the screw conveyor (56) from the discharge port (5) on the left side of the machine, The smoothed rice to be taken out at (74) is fried in the smoothed rice tank (7) via the fried conveyor (6) and appropriately taken out of the machine.

Furthermore, while opening a bran extraction hole (77) at the lower end on the front side of the conveyor tube (72), the hole (77) is always closed with a lid (78) to close each conveyor chamber on the front side of the machine body ( 54) When closing the inspection cover (80) that closes the common inspection port (79) of (57) Lid (78)
When the lid (78) is opened, the rice bran and dust mixed in the scrap rice are dropped onto the rice bran chute (81) below and taken out of the machine from the front side of the machine. ing.

As shown in FIG. 7, two urethane rubber plate scrapers (84) (on the hexagonal shaft portion (10a) of the main shaft (10) via bolts (82) and a pair of contact plates (83) (83). 84) The middle is fixed, and the both end edges of these scrapers (84) (84) are
(4) ... is brought into sliding contact with the sorting surface having a large number of meshes (85), and each scraper (84) (84) is rotated at the same rotation as the revolution of the sorting cylinder (4). Hold the contact surface of each scraper (84) (84) in contact with each other, and at the time of its rotation, perform the stab of the slugs that get stuck in the mesh (85) in the vicinity of the center of the revolution where the orbital centrifugal force is weakest. Is configured as follows.

Further, the distribution plate (13) is formed in a quadrangular shape, each support shaft (12) is provided at a corner portion of the plate (13), and brown rice is provided on an upper flat surface of the distribution plate (13). A rubber elastic prevention body (86) for scattering prevention is integrally fixed, and a cylindrical body (88) for enclosing a detent ball (87) in the upper coupling body (14) of the distribution plate (13) via a compression spring. ), The hexagonal hole (18a) of the lower receiving member (18) of the sorting cylinder (4) is engaged when the ball (87) is engaged with the lower notch (89a) formed in the hexagonal shaft portion (10a). Support shaft (1
While performing the sorting work by fitting and supporting the hexagonal head (19a) of 9), the sorting cylinders (4) ... are integrally moved up through the distribution plate (13) to move the ball (87) to the hexagonal shaft. When engaging the upper notch (89b) formed in the portion (10a), the lower receiving member (18) is set to be disengaged from the hexagonal shaft portion (19a), and then each sorting cylinder (4) is lowered. By pushing down, the upper receiving member (11) is disengaged from each spindle (12) ...
It is configured to remove ... When the distributor plate 13 is moved up, even if the upper part of the preventive body (86) abuts and interferes with the bottom part of the hopper (3), the elastic deformation of the preventive body (86) causes trouble. It is configured such that the sorting cylinder (4) can be removed without the operation.

By the way, as shown in FIG. 1, the lower end of each of the selection cylinders (4) is made to overhang from the lower receiving member insertion hole (90) of the upper disc (16), and the insertion hole (90) is Forming an upper disc (1
The lower end of the lower receiving member (18) is made to face the lower end of the selection cylinder (4) so as to overlap with the lower end of the selection cylinder (4) on the outside of the rising portion (16a) of 6) through the insertion hole (90). , It is possible to effectively prevent waste rice from entering through the gap between the lower receiving member (18) and the insertion hole (90) without providing a separate waste rice contamination prevention flange on the outside of the sorting cylinder (4). With a constant value, the pitch of each sorting cylinder (4), that is, the revolution radius, is made small so that the sorting portion (91) can be downsized. Then, by forming the lower end side portion (18b) of the receiving member (18) to have a smaller diameter than the upper end side so that the receiving member (18) is inserted through the insertion hole (90), the unpolished rice at the lower end portion of each sorting cylinder (4). It is configured to add resistance to the downflow so that the smoothed brown rice is slightly retained and to improve the sorting efficiency and the sorting accuracy.

As is clear from the above, the sorting cylinder (4) to be erected is charged with grains from the upper end side, the sorting cylinder (4) leaks waste grains to the outside of the middle part, and the sorting cylinder (4) from the lower end side. In the grain sorting device for picking out the grain, while mounting the discs (16) (17) that are the upper and lower receiving plates with a vertical spacing below the sorting cylinder (4),
Select the lower receiving member (18) with an outer diameter smaller than the sorting cylinder (4).
It is connected to the lower end and is smaller than the inner diameter of the sorting cylinder (4) and is an upper disc.
(16) Insert the through hole (90) whose opening edge is higher than the top surface into the upper disc.
(16), the lower receiving member (18) through the insertion hole (90)
Extend the lower end side to the upper side of the lower disc (17) and open it, arrange the leveled rice gutter (69) at a position lower than the lower disc (17), and also select cylinder (4) lower end and upper circle Scrap rice gutter (6
8) is provided.

On the other hand, as shown in FIG. 4 and FIG. 6, the input port (2) is opened in an inclined shape in the upper region of the receiving hopper (3) of the sorting section (91). The input port (2) is opened between the rising surface (22a) and the intermediate gently sloping surface (22b) to facilitate the input of brown rice in the rear horizontal direction or obliquely above or above the brown rice input chamber (92). ) And each conveyor chamber (54) (57) to partition the partition plate (55) and the left and right side surfaces (22c) (22
c) and the input guide surface that surrounds the three sides are formed to prevent splashing of the brown rice that is input and ensure reliable input.

In addition, the graded rice tanks (7) arranged in front in the feeding chamber (92) with the respective conveyor chambers (54) and (57) sandwiched between the sorting unit (91) and the feeding chamber.
The width (D1) of (92) and this tank width (D2) are substantially the same (D1).
≈D2), and the jammed board (9) is placed below the fried grain input port (93) into which the adjusted brown rice from the conveyor (6) is input into the tank (7).
4) through the overflow pipe (95) at one end side overflow inlet
(95a), the overflow outlet (95b) at the other end of the pipe (95) penetrates above the conveyor chamber (57) to the charging chamber (92), and the inside of the tank (7). When the rice is full and the unpolished rice overflows from the overflow inlet (95a), it is returned to the hopper (3) below the charging chamber (92) through the overflow pipe (95). The sixth
By connecting an auxiliary overflow pipe (95c) to the overflow pipe (95) as shown by the phantom line in the figure, it is possible to take out the unpolished rice that overflows to the outside of the charging chamber (92).

Further, a display panel (97) of a controller (96) for measuring the weight of the polished rice is installed on the front surface of the polished rice tank (7), and an on / off switch (98) for sorting work is provided on the right side of the tank (7). ) Is installed, and the controller (96) has a built-in arithmetic circuit for calculating the weight of the smoothed rice based on the signal from the load cell (99) that measures the weight of the smoothed rice taken out from the tank (7). Then, the calculated weight is displayed on the display panel (97), and when the preset weight displayed in advance is reached, the sorting work is interrupted, and, for example, the set time and the actual working time until the preset weight is reached. When there is a change in work efficiency such as a change between
(52) is used to appropriately change the rotation speed of the selection cylinder (4).

The controller (96) is installed in the controller room (100) in front of the straightened rice tank (7), and the harness (96a) of the controller (96) and the switch (9) in the controller room (100) are installed.
A shutter solenoid that adjusts the opening of the shutter (9) by guiding the harness (98a) of 8) to the outside of the lower part of the tank (7) through the harness passage (101) along the left inner wall surface of the tank (7). (Ten
Introduced into the waste rice conveyor chamber (57) through the opening (103) together with the harness (102a) of 2) and the like, and the conveyor chamber (57)
It is configured to be held between the harness hooking metal fittings (104) (104) on the left outer surface of the rear body by guiding the corner portion of the vehicle downward through the passage.

The lower drive pulley (29) and the upper driven pulley (29a) of the fried conveyor (6) have a bucket action surface, a bucket
Attach the (105) to the belt (106).
An interference prevention groove (108) for avoiding interference with 7a) is formed so that noise and vibration are prevented from occurring and the conveyor (6) is driven smoothly.

Further, in FIG. 4, (109) is a selection inspection cover that closes the inspection port (110) of the selection unit (91), and (111) is the inspection port (112) of the motor chamber (25).
Is a motor inspection cover for closing the inspection port, (113) is an inspection cover for closing the inspection port of the continuously variable transmission mechanism (37), and (114) is a carrying handle opened above the insertion port (2).

This embodiment is constructed as described above, and the charging port
The brown rice put into the brown rice receiving hopper (3) from (2) is a sorting tube.
(4) is fed into the sorting cylinder (4) and after the scrap rice is separated and removed, the grain is fried in the grain-polished rice tank (7) via the grain-lifting conveyor (6) and properly taken out of the machine. It is something.

Thus, during the revolution and rotation of the sorting cylinder (4), the leakage of scrap rice from the mesh (85) is promoted by the centrifugal force action at the time of revolution, and the reverse of the revolution direction (a). The brown rice is agitated in a uniform distribution state in the tube (4) by the rotating and stirring action to further promote the separation of the scrap rice, and the brown rice is allowed to flow well while rotating along the inner peripheral surface of the tube (4). It improves the processing capacity.

In addition, the prepared brown rice tank (7) has a charging chamber (92) and a sorting section (9).
Since it is installed in front of each other with the respective conveyor chambers (54) and (57) sandwiched between them, the work flow is good and efficient, and these tanks (7), sorting section (91) and conveyor chamber (54) ) (57) width
Since (D1) and (D2) are almost the same and can be effectively used without loss, the structure is compact and functional, and it can be easily put into the machine even when the brown rice is put in the machine, either from above or behind, The three sides are also a partition plate (55) and both left and right sides
Surrounded by a guide surface composed of (22c) and (22c), brown rice can be satisfactorily charged and supplied to the receiving hopper (3) without popping out.

Further, the controller (96). Switch (98). Harnesses for electrical accessories such as solenoids (102) (96a)) (98a) (102a)
Since they are not exposed to the outside of the fuselage on the way and only the power connection terminal side is exposed to the outside of the fuselage, it does not hinder these work or damage them safely. Good work can be done.

Furthermore, during the sorting operation, the lower end side of the sorting cylinder (4) is provided in an overhang shape with respect to the insertion hole (90) of the upper disc (16), and the conventional scraps are provided outside the sorting cylinder (4). Since a flange for mixing rice is not required, the mounting pitch (revolution diameter) of each sorting cylinder (4) can be made small and the sorting unit can be made compact. Moreover, as a result, the receiving member (18)
Since the lower end side part (18b) of the rice is smaller than the upper end side, resistance is added to the downward flow of the straightened rice and the straightened rice stays in the sorting cylinder (4) Is improved and sorting accuracy is improved.

[Effects of the Invention] As is apparent from the above-described embodiments, the present invention allows the grains to be placed from the upper end side inside the sorting cylinder (4) to be erected, and the waste grains to leak to the outside of the middle part of the sorting cylinder (4). In the grain sorting device for picking out the grain from the lower end side of the sorting cylinder (4), the upper and lower receiving plates (16) (17) are attached at intervals below the sorting cylinder (4), and the sorting cylinder is installed. (4) The lower receiving member (18) having a smaller outer diameter is connected to the lower end of the sorting cylinder (4), and the opening edge is higher than the upper diameter of the upper receiving plate (16) and smaller than the inner diameter of the sorting cylinder (4). An insertion hole (90) is formed in the upper receiving plate (16), and the lower receiving member is inserted through the insertion hole (90).
(18) Extend the lower end side to the lower support plate (17) upper surface side and open it,
Arranged plain rice gutters (69) at a position lower than the lower support plate (17), and disposed scraped rice gutters (68) at a position lower than the lower end of the sorting cylinder (4) and the upper support plate (16). The lower receiving member (18), which has a smaller diameter than the sorting cylinder (4), penetrates the upper receiving plate (16).
(4) The outer dimensions of the upper support plate (16) and the scrap rice gutter (68) provided on the lower side can be easily reduced compared to the conventional one, and the horizontal width of the mounting portion of the selection tube (4) is smaller than the conventional one. Therefore, it is possible to easily reduce the external size and reduce the manufacturing or transportation cost, and the lower receiving member (18) having a diameter smaller than that of the sorting cylinder (4) serves as a grain drop resistance. Grains can be gently dropped on the lower end side of the sorting cylinder (4) without providing a special member, which simplifies the structure of the sorting cylinder (4) and improves the sorting accuracy. is there.

[Brief description of drawings]

FIG. 1 is a partially enlarged explanatory view of a sorting section, FIG. 2 is a side view of the whole, FIG. 3 is a front view of the same, FIG. 4 is an external perspective view of the same, FIG. FIG. 7 is a partial side view, FIG. 7 is a plan view of a sorting section, FIG. 8 is a plan view of a sorting driving section, and FIG. 9 is a conveyor section. (4) …… Selection cylinder (16) (17) …… Disk (19) …… Spindle (90) …… Insertion hole

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Chiaki Kadota 1-32, Chaya-cho, Kita-ku, Osaka, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. (72) Eiichi Okamoto 1-32, Chaya-cho, Kita-ku, Osaka-shi, Osaka No. Yanmar Agricultural Machinery Co., Ltd. (56) Reference JP-A 64-90072 (JP, A) JP-A 1-1111478 (JP, A) JP-A 61-125476 (JP, A) JP-A 1- 164486 (JP, A) Actual Kaihei 1-69686 (JP, U) Patent 84033 (JP, C1)

Claims (1)

[Scope of utility model registration request] 1. Grains are fed from the upper end side into the inside of the sorting cylinder (4) to be erected, and waste grains are leaked to the outside of the middle portion of the sorting cylinder (4), and the grain is adjusted from the lower end side of the sorting cylinder (4). In the grain sorting device for picking grains, upper and lower receiving plates (16) (17) are attached at intervals below the sorting cylinder (4), and a lower receiving member having an outer diameter smaller than that of the sorting cylinder (4) ( 18) is connected to the lower end of the selection cylinder (4), and the insertion hole (90) that is smaller than the inner diameter of the selection cylinder (4) and has a higher opening edge than the upper support plate (16) has an upper support plate (16). The lower receiving member (18) extends downward from the lower receiving member (18) to the upper surface of the lower receiving plate (17) through the insertion hole (90) to open the lower receiving plate (17). A grain sorting device comprising a gutter (69) and a scrap rice gutter (68) at a position lower than the lower end of the sorting cylinder (4) and the upper support plate (16).