JP3704785B2 - Cereal stirring device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a grain agitation apparatus in a facility for grain drying and storage.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a grain stirring device having a square horizontal section is known as a facility for drying and storing grains. This has the advantage that the installation space is not wasted compared with a round cross section. As this type of square grain stirring device, one described in JP-A-6-257944 is known.
[0003]
This device is installed at the upper part of the grain storage tank in the left-right direction of the grain storage tank, and reciprocates in the front-rear direction of the grain storage tank, and is mounted on the first carriage and installed in the grain storage tank. A second carriage that is reciprocated in the left-right direction, and a stirrer (bar) that is inserted into the grain storage tank and agitates the grain is attached to the second carriage, The stored grain in the grain storage tank is agitated by the agitator while the second carriage moves in the front-rear and left-right directions.
[0004]
When this machine is added to the grain, the grain may hit the carriage when the carriage crosses the inlet, and the stirring device may break down or the parts of the truck may fall into the tank. A structure is adopted in which the carriage is retracted to a position avoiding the grain inlet of the grain storage tank so that it does not hit, and is stopped until the grain has been charged.
[0005]
[Problems to be solved by the invention]
The conventional apparatus is an excellent grain agitation apparatus suitable for effectively utilizing a narrow space, but when a grain is charged, the agitation tool is moved to the wall side of the grain storage tank and then stopped. As a result, only the portion inside the tank into which the grain was introduced may accumulate in a mountain-like shape, and as a result, the stirring tool was buried in the mountain as soon as the grain was stopped and stirring was started. There was a risk that an abrupt load would be applied to the stirrer.
[0006]
In addition, when the input time of cereals (rice cake) in a state where the agitator is stopped is prolonged, even if sufficient ventilation action is given to the cereals (rice cakes) until then, the ventilation effect is reduced, and cereals ( (Ii) There was a problem that the quality was deteriorated. In particular, if additional straw is added to the cereal (primary) after the primary drying, and the dry wind is made to enter from the bottom of the grain storage tank, and the dry wind is applied to the cereal (salt), the dry wind is at the high part of the mountain. There was a problem in that the passage of water deteriorated, and only that portion may remain in a higher moisture state than the other portions, resulting in moisture unevenness in the dried grain in the grain storage tank. The subject of this invention is providing the cereal stirring apparatus which can continue stirring of cereal, without stopping a trolley | bogie, rotating a stirrer even during grain injection | throwing-in.
[0007]
[Means for Solving the Problems]
The above object of the present invention is achieved by the following configuration.
In other words, the horizontal section with the grain input part in the center of the ceiling is at the upper part of the square grain storage tank, and is horizontally mounted in the horizontal direction of the grain storage tank, and can be reciprocated in the front-rear direction of the grain storage tank. a first carriage, provided a second carriage mounted on said first carriage and capable of reciprocating in the horizontal direction of the grain storage tank, the position detection hand stages of cereals insertion portion of the grain storage tank cereals A stirring device,
The second carriage is provided with a stirrer that stirs the grains in the grain storage tank at both left and right positions, and a cover portion that covers a portion inside the stirrer, and the second carriage is It is a cereal stirring apparatus provided with the structure which controls a moving operation | movement so that the said stirring part may pass under the said grain input part while the stirring tool passes the position which remove | deviated from the said grain input part.
[0008]
In the cereal stirring apparatus of the present invention, for example, the following specific configuration can be employed.
That is, a pair of cereal input position detection limit switches is provided on the first carriage, a pair of cereal input position detection dogs corresponding to the cereal input position detection limit switch is provided on the inner wall of the grain storage tank, and a pair of cereal input The installation interval of the position detection dog is made to correspond to the opening diameter of the grain input part provided in the ceiling part of the grain storage tank. Further, a pair of reverse position detection limit switches are provided in the vicinity of both ends of the second carriage, and a grain input part detection dog corresponding to the reverse position detection limit switch is provided at an arbitrary position of the first carriage.
[0009]
Based on the position detection results of these limit switches, the movement direction of the first carriage and the second carriage, such as normal rotation, reverse rotation, forward movement, and backward movement, is determined, and the first and second carriages at the time of grain loading are determined. By controlling the operation, a specific part of the second carriage, for example, a specific part of the second carriage excluding the traveling device or the stirring tool is passed under the grain input unit.
[0010]
Further, at this time, by providing a cover at least above the specific part of the second carriage, even if grains fall on the carriage, it does not enter the inside of the carriage, and trouble can be prevented.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 5 shows an outline of the grain drying facility. The structure of the facility will be described. The received grain is put into the load receiving hopper 1 and sent to the coarse sorter 3 by the coarse sorter elevator 2. The grain from which wastes such as rice cake and dust are removed is sent to the load receiving weighing device 7 by the weighing machine elevator 5. After weighing the cereals, the cereals are conveyed from the storage bin tension elevator 8 through the storage bin tension conveyor 9 to the square grain storage and drying storage bin 10 provided below the storage bin tension conveyor 9. Is done.
[0012]
The storage bins 10 are arranged in series in the building. In the example shown in FIG. 5, a bin of about 50 tons per group is accommodated in a right and left 2 series × 6 bins in the building to make a total of 12 bins. The grain storage capacity of each storage bin 10 is 50 t, and each storage bin 10 is partitioned by a partition wall 12.
[0013]
A storage bin discharge conveyor 13 for discharging and moving the grains stored in the storage bin 10 from below in the storage bin 10 is provided between the left and right two series of bins 10.
[0014]
Further, when the grain stored in the storage bin 10 is delivered, a predetermined amount of cereal is sent from the storage bin 10 to the flow rate adjusting tank 20 by the storage bin discharge conveyor 13, and the cereal (hull) sliding elevator 21. Is sent to the cereal grinder 22. The grain that has been crushed by the cereal grinder 22 is divided into sized and scrapped rice, and the sized particle is guided to the stone remover 27 via the stone remover elevator 26, and from the product tank elevator 28 to the product tank 29. And is packed in a weighing bag by the scale shutter 30 and the flexible container scale 31. Cereals (brown rice, etc.) in the product tank 29 can be sent to the mini rice milling plant 36 by opening the switching shutter 33 and using the rice milling elevator 35.
[0015]
On the other hand, among the grains that have been defatted by the cereal grinder 22, the waste rice is collected in the waste rice tank 38 via the waste rice tank elevator 37 and provided for feed.
[0016]
Next, the configuration of the stirring device will be described with reference to FIG. 6 (side view of the traveling device of the storage bin 10) and FIG. 7 (top view of the traveling device of the storage bin 10).
Above the storage bins 10, guide rails 40 having a mountain-shaped cross section are provided on the left and right sides of the storage bins 10, and a first carriage 44 having a moving wheel 42 is placed on the guide rails 40. A moving device 45 for moving the first cart 44 in the front-rear direction is mounted on the first cart 44.
[0017]
The moving device 45 is provided with an electric motor 46. The rotational power is transmitted to the speed reduction mechanism 48 via the pulley / sprocket mechanism 47, and the rotation direction is changed by 90 degrees by the speed reduction mechanism 48, and the pulley / sprocket mechanism 50 is further moved. Then, power is transmitted to the rotating shaft 52 of the moving wheel 42, and the first carriage 44 is moved in the front-rear direction along the guide rail 40.
Further, a pair of slide rails 53 having a mountain-shaped cross section is provided on the first carriage 44 in the left-right direction, and a moving wheel 55 is placed on the slide rail 53 to support the second carriage 56.
[0018]
A carriage moving device 57 is mounted on the second carriage 56, the rotational direction of the electric motor 60 is converted by 90 degrees by the speed reducer 58, power is transmitted to the rotating shaft 61 of the moving wheel 55, and the rotating shaft 61 The four moving wheels 55 of the second carriage 56 are rotated to move the second carriage 56 in the left-right direction along the slide rail 53.
[0019]
The second carriage 56 is provided with a stirring rod driving device 65 that rotationally drives the stirring rod 64 at left and right symmetrical positions. The stirring rod driving device 65 includes a drive electric motor 66 and a stirring rotation shaft 67 that is driven by the belt. The agitation rotating shaft 67 has a tip projecting below the second carriage 56, and a stirring rod 64 is attached to the tip via a universal joint 68.
[0020]
A spiral blade 64 a is formed on the outer periphery of the stirring rod 64, and the grains accumulated in the storage bin 10 by rotating in a certain direction via the stirring rotating shaft 67 by the drive electric motor 66 of the stirring dedicated driving device 65 are collected. Agitation is performed, the lower grain is lifted and the upper grain is allowed to settle, and agitation is performed to homogenize the drying of the grain. Further, the second carriage 56 is placed on the left and right of the storage bin 10 and the first carriage 44 Is moved in the front-rear direction of the storage bin 10, and the stirring rod 64 is moved evenly into the storage bin 10 to appropriately dry the grains in the storage bin 10.
[0021]
In this embodiment, the electric motor 46 for moving the first carriage 44, the electric motor 60 for moving the second carriage 56, and the electric motor 66 for rotating the stirring rod 64 are all commands from the controller 70 (FIG. 8). Controlled by Therefore, a contact type position sensor (limit switch LS) including a light emitter and a light receiver is connected to the controller 70 in order to accurately grasp the positions of the first carriage 44 and the second carriage 56.
[0022]
Position sensors (limit switches LS1, LS2) for detecting the position of the first carriage 44 are provided in the vicinity of the guide rail 40, and position sensors (limit switches LS3, LS4) for detecting the left and right positions of the second carriage 56 are provided. It is provided at the upper part of the machine frame of the first carriage 44.
[0023]
Note that the positions of the two carriages 44 and 56 may be detected by an optical sensor instead of the contact sensor. Alternatively, a sensor (not shown) such as a rotary encoder that detects the rotation of the moving wheels 42 and 55 is provided, and the positions of the first carriage 44 and the second carriage 56 are detected from the detection values of the sensors. You may do it.
[0024]
FIG. 8 shows a control block diagram. On the input side of the controller 70, a start switch 77 and a grain input switch 78 for starting drying are connected together with the position sensors LS1 and LS2 and the position sensors LS3 and LS4. Yes. When the start switch 77 is pressed to start drying, the first carriage 44 and the second carriage 56 start moving according to a predetermined program.
[0025]
The movement pattern of the first carriage 44 and the second carriage 56 during the stirring of the grain is a zigzag movement pattern as shown in FIG.
The moving directions of the first carriage 44 and the second carriage 56 when the grain is put are as shown in FIG.
[0026]
FIGS. 6 and 7 show covers 81 a and 81 b provided on the second carriage 56. However, FIG. 7 does not show the cover 81b. Moreover, as shown in FIG. 7, a pair of grain input position detection limit switches (LS1, LS2) is provided in the first cart 44, and a pair of grain input corresponding to the grain input position detection limit switches LS1, LS2 respectively. Position detection dogs 82a and 82b are provided at the center of the inner wall of the storage bin 10 as shown in FIG. The installation interval of the pair of grain input position detection dogs 82 a and 82 b shown in FIG. 3 corresponds to the diameter of the grain input port 85 provided in the center of the ceiling portion of the storage bin 10.
[0027]
Further, as shown in FIG. 6, a pair of reverse position detection limit switches (LS3, LS4) are provided at both ends of the second carriage 56, and reverse corresponding to the reverse position detection limit switches LS3, LS4. Position detection dogs 83 a and 83 b are provided in the vicinity of both ends of the first carriage 44.
The position detection results of these limit switches LS1 to LS4 determine the direction of movement of the first carriage 44 and the second carriage 56 by the controller 70 (FIG. 8).
[0028]
FIG. 1 is a diagram for explaining the operation of the first carriage 44 and the second carriage 56 at the time of grain loading, and FIG. 2 is a flowchart of the detection of the grain input port 85 and the carriage traveling control. 2, only the hatched portion of the second carriage 56 shown in FIG. 1 passes under the grain input port 85. Therefore, by attaching covers 81a and 81b (FIGS. 6 and 7) on the shaded portions of the second cart 56 shown in FIG. 1, even if the cereal falls on the carts 44 and 56, the cart 44, The fallen cereal does not enter inside 56, and the occurrence of trouble can be prevented.
[0029]
In the flowchart of FIG. 2, first, when the carriages 44 and 56 are not in the initial position, the first carriage 44 is reversed and the second carriage 56 is moved backward in order to move the carriages 44 and 56 to the initial position. . Here, the reverse movement of the first carriage 44 and the backward movement of the second carriage 56 indicate the movement in the direction in which the first carriage 44 and the second carriage 56 move to the position of FIG. . Accordingly, the forward rotation of the first carriage 44 and the forward movement of the second carriage 56 indicate movement in the direction in which the first carriage 44 and the second carriage 56 move to the position of FIG. To do.
[0030]
When the movement of the first carriage 44 and the second carriage 56 to the initial position is completed, the grain stirring operation that takes a zigzag locus by the stirring rod 64 is started. During the stirring operation, when the grain input position detection limit switch LS1 is on and the grain sticking signal is on, the second carriage 56 moves forward as shown in FIG. Then, after the lapse of the specified time or when the reverse position detection limit switch LS3 is turned on, the first carriage 44 performs forward rotation as shown in FIG. At this time, the second carriage is maintained in a stopped state.
[0031]
When the grain input position detection limit switch LS2 moves to a position where it is turned on, the second carriage 56 moves backward as shown in FIG. Further, after the lapse of a specified time or when the reverse position detection limit switch LS4 is turned on, as shown in FIG. 1 (d), the first carriage 44 performs the reverse operation, and the first carriage 44 and the second carriage 56 Moves to a position where LS1 for detecting the grain input position is turned ON. At this time, the second carriage 56 maintains a stopped state. When the cereal sticking signal is on after the first carriage 44 and the second carriage 56 return to the initial positions, the second carriage 56 moves forward as shown in FIG. The above routine is repeated.
[0032]
Further, when the first bogie 44 and the second bogie 56 are in the stirring operation and the cereal sticking signal is off, the stirring operation in the zigzag pattern starts from the start of the grain stirring by the stirring rod 64. Made.
[0033]
As described above, according to the present invention, when a specific part of the stirring device passes under the grain input part, it is not necessary to apply the cover 81 to the entire stirring device, and the cost is reduced. In addition, since the traveling device of the stirrer and the drive unit of the stirrer can be passed through the position, troubles are reduced and durability is increased.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining the operation of a first cart and a second cart during grain input according to an embodiment of the present invention.
FIG. 2 is a flowchart of operation control at the time of putting grains in the first cart and the second cart according to an embodiment of the present invention.
FIG. 3 is a plan view of a wall surface portion of a grain storage bin.
FIG. 4 is a diagram for explaining a movement pattern of a stirring bar during an operation when the grain of the first carriage and the second carriage shown in FIGS.
FIG. 5 is a schematic diagram of a cereal drying facility.
FIG. 6 is a side view of a traveling device for a grain storage bin.
FIG. 7 is a plan view of a traveling device for a grain storage bin.
FIG. 8 is a control block diagram of a traveling device for a grain storage bin.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Load receiving hopper 2 Rough sorter elevator 3 Rough sorter 5 Weighing machine elevator 7 Load receiving weigher 8 Storage bin tension elevator 9 Storage bin tension conveyor 10 Storage bin 12 Partition wall 13 Storage bin discharge conveyor 20 Flow rate adjustment tank 21 Grain (rice cake) sliding elevator 22 Grain (rice cake) sliding machine 26 Elevator for stone removal machine 27 Stone removal machine 28 Elevator for product tank 29 Product tank 30 Scale shutter 31 Flexible container scale 33 Switching shutter 35 Elevator for rice polishing 36 Mini rice polishing Plant 37 Waste rice tank elevator 38 Waste rice tank 40 Guide rail 42 Moving wheel 44 First carriage 45 Moving device 46 Electric motor 47 Pulley / sprocket mechanism 48 Reduction mechanism 50 Pulley / sprocket mechanism 52 Rotating shaft 53 Slide rail 55 Moving wheel 56 Second cart 57 Carriage moving device 58 Reduction gear 60 Electric motor 61 Rotating shaft 64 Stirring rod 65 Stirring rod driving device 66 Driving electric motor 67 Stirring rotating shaft 68 Universal joint 70 Controller 72, 73 Position sensor 77 Start switch 78 Grain input switch 81a, 81b Cover 82a, 82b Grain input position detection dog 83a, 83d Grain input position detection dog 85 Grain input port LS1, LS2 Grain input position detection limit switch LS3, LS4 Reverse position detection limit switch

Claims (1)

A horizontal cross section having a grain input portion in the center of the ceiling portion is above the square grain storage tank, is horizontally mounted in the horizontal direction of the grain storage tank, and is capable of reciprocating in the front-rear direction of the grain storage tank. the carriage and a second carriage mounted on said first carriage and capable of reciprocating in the horizontal direction of the grain reservoir, cereals stirring device provided with a position detection hand stages of cereals insertion portion of the grain storage tank Because
The second carriage is provided with a stirrer that stirs the grains in the grain storage tank at both left and right positions, and a cover portion that covers a portion inside the stirrer, and the second carriage is A grain agitation apparatus comprising a configuration in which a stirrer passes through a position off the grain input part and controls a moving operation so that the cover part passes under the grain input part.

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