JPS62106281A - Residual cereal grain discharger in circulation type cereal grain drier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is applied to a circulation type grain dryer that dries grain without circulating the inside of the machine, and in particular, it is applicable to a circulating grain dryer that dries grain without circulating the inside of the machine. This invention relates to a device that reliably discharges residual grains to the outside of the machine during discharge.

(Conventional technology) An example of a conventional grain dryer is shown in FIG.

To explain this, when drying grains, the grain input port l
The grains input from
It is spread evenly into the storage chamber 5 by the diffusion plate 4. When the filling of the grains into the storage chamber 5 is completed and the drying button on the operation unit is operated, the rotary valve 6 rotates and the grains from the storage chamber 5 are transferred to the bottom of the storage chamber 5 through the drying chamber 7. It flows out into a collection room 9 in which a cross-feeding helix 8 is installed. At this time, hot air from a burner (not shown) connected to the hot air chamber 10 is sucked by an exhaust fan (not shown) connected to the exhaust chamber 11 and is passed through the dryer 7. The surface of grains flowing down a drying chamber 7 is strongly dried.

After drying, the grains are transferred from the grain collecting room 9 to the grain raising machine 2 and to the grain feeding helix 3.
The grains are then returned to the storage chamber 5 via the diffusion plate 4, where the moisture inside the grains is diffused to the surface and tempered. The tempered grains flow down the drying chamber 7 again and are repeatedly dried.

Thereafter, the dried grains are discharged from the machine through the outlet, leaving the machine empty.

(Problem to be solved by the invention) However, the grains are not completely discharged outside the machine and some of them remain inside the machine.
This is noticeable at the bottom of the peripheral wall of the rotary/help 6.

If such residual grains are left unattended, the next time a different type of grain is dried, the residual grains will be mixed with the dried grains, which is not desirable. If left untreated, it will lead to rotting, which becomes a particular problem if it gets mixed in with the dried grains during the next drying process.

Therefore, in order to prevent these harmful effects,
The bottom of the rotary valve 6 was manually opened one by one, and the remaining grains at the bottom of the surrounding wall were removed with a broom, resulting in extremely poor work efficiency. Further, the work in the grain feeding helix 3 was often dangerous because the work was at a high place. Since the grain feeding helix 3 is located in a place that is difficult to see, it is often the case that people forget about its existence and forget to discharge the remaining grains when the grain discharge is finished and the work is not done properly. there were.

As described above, in the past, the work of discharging the residual grains inside the machine was not only difficult to perform, but also extremely dangerous, and was not reliable.

Therefore, the purpose of the present invention is to automate the work of removing residual grain inside the machine in order to eliminate these drawbacks, improve work efficiency, eliminate work danger, and further improve work reliability. An object of the present invention is to provide a residual grain discharge device that has significantly improved performance.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a grain transfer body that rotates blades fixed to a rotating shaft to transfer grains on a receiving gutter plate. In a circulating grain dryer that drives this transfer body to circulate the grain inside the machine and discharge it to the outside of the machine, the receiving gutter plate of the grain transfer body is set at an upward transfer position and a downward discharge position. and a discharge detection means for detecting the discharge of grains outside the machine, and a receiving gutter plate moving means for switching the receiving gutter plate from its transfer position to its discharge position based on this detection signal. It is something to do.

(Function) That is, in the present invention, when the discharge detection means detects the discharge of grains outside the machine, the receiving gutter plate moving means moves the receiving gutter plate from the grain transfer position to the discharge position based on the detection signal. This switch allows the remaining grains to be discharged out of the machine by natural fall.

(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention, where 81
Portions similar to those in FIG.

In the figure, reference numeral 12 denotes a grain feeding helix as a transporting body that transports grains on the receiving gutter plate 13 by rotating blades fixed to a rotating shaft. Further, 14 is a rotary valve as a moving body that moves grains on the receiving gutter plate 15 downward by rotating blades fixed to a rotating shaft. Further, reference numeral 16 is a cross-feeding helix that transfers the grains on the receiving gutter plate 17 by rotating blades fixed to the rotating shaft.

In this embodiment, among the transport bodies for transporting grains, the grain feeding helix 12, which particularly requires the discharge of residual grains,
Each receiving gutter plate 13 for the rotary valve 14 and the cross-feeding spiral 16.
15 and 17 can be switched between an upward grain transfer position as shown in the figure and a downward grain discharge position (not shown) by a moving mechanism described later.

FIG. 2 shows an embodiment of the moving mechanism for the gutter plate 13 shown in FIG.

As shown in the figure, the receiving gutter plate 13 of the grain feeding spiral 12 is connected to the renoid 18. As shown in FIG. 3, the operation timing of this receiving gutter plate 13 is determined by a discharge sensor arranged at the connection between the outlet of the grain hoist 2 and the inlet of the grain feeding helix 12 to detect the discharge of grains. This is done according to the detection output of No. 19.

4 and 5 each show an example of a moving mechanism for the gutter plate 15 shown in FIG. 1.

In the figure, 20 is a spring, which is connected via a connecting rod 21 to the gutter plate 15 supported by a shaft 22.

The spring 20 allows the tip of the gutter plate 15 to always come into contact with the lower part of the stopper 23 as shown in the figure. Furthermore, the connecting rod 21 is fixed to one end of the shaft 22, and the lower end of the connecting rod 21 is connected to the solenoid z4.

FIG. 6 and FIG. 7 each show other examples of moving mechanisms for the receiving gutter plate 15.

In this example, the spring 2 shown in FIGS.
0 and the solenoid 24, a spring 25 made of a shape memory alloy is connected to the gutter plate 15 via a connecting rod 26. This spring 25 has the property of expanding when it is energized. Therefore, the gutter plate 15 is
When it is desired to open the spring 25 to the position shown by the dashed line in the figure, the spring 25 itself is energized, and on the other hand, when it is desired to open the gutter plate 15 to the position shown by the solid line as shown in FIG.
5 itself is de-energized.

FIG. 8 is a block diagram showing an example of a control system according to an embodiment of the present invention.

In the figure, 30 is a CPU in the form of a micro processor (
The central processing unit (central processing unit) stores in advance the processing procedure according to the present invention as shown in FIG. 9, makes various judgments necessary for control, and controls each component as described later.

Reference numeral 31 denotes an operation unit equipped with a drying button, a tensioning button, an ejection button, a stop button, and the like. 32 is an input circuit which receives and receives signals from the discharge sensor 19 and the operation section 31, performs predetermined processing, and supplies the signals to the CPU 30. Reference numeral 33 denotes a display device, which provides various displays to inform the operator of various operating conditions.

34 is an output circuit, and when it receives an output signal from the CPU 30, it outputs a solenoid 18, 24, 35 according to the signal.
etc. to drive. 36 is a power supply, which supplies power to the CPU 30 and also to other parts.

Next, an example of the operation of the embodiment configured as described above will be explained with reference to the flowchart of FIG.

Now that the drying of the grains has been completed, the operating section 31 is pressed in step S1.
When the discharge button is pressed, dry 3JK grains begin to be discharged out of the dryer from the outlet of the dryer.

Next, in step S2, it is determined whether or not the discharge sensor 19 is ON.
When 9 is turned on, the process advances to the next step S3.

In step S3, the solenoid 18 is energized and the gutter plate 1
3 is switched from the grain transfer position to the release position, and the grains remaining at the bottom of the periphery of the grain feeding helix 12 fall. next,
In step S4, the thread/id 24 is excited and the gutter plate 1 is
5 is similarly switched from the grain transfer position to the discharge position, and the grains remaining at the bottom around the rotary valve 14 fall.

Therefore, the remaining grains that have fallen onto the peripheral wall and bottom of the cross-feeding helix 16 due to such an operation are discharged to the outside from the discharge port via the cross-feed helix 16 and the grain elevator 2.

Furthermore, in step S5, the solenoid 35 is energized and the receiving gutter plate 17 is switched from the grain transfer position to the discharge position, so that the grains still remaining at the bottom of the peripheral wall of the cross-feeding helix 16 are completely discharged to the outside of the machine. Ru.

When the grains remaining in each part are completely discharged from the machine through this series of operations, the process proceeds to the next step S6, where all the solenoids 18, 24, and 35 are demagnetized, and the receiving gutter plate is accordingly deenergized. 13, 15, and 17 all return to their original states, and the control according to this embodiment ends.

In addition, in the above operation example, a plurality of gutter plates 13.15.1
7 are sequentially switched over time from the grain transfer position to the discharge position, but instead of this, after the discharge sensor 19 is turned on, a timer counts for a predetermined period of time, and after the count ends, these receiving gutter plates 13. 15 and 17 may be controlled simultaneously, or in this case, this switching operation may be performed multiple times.

Furthermore, in the above operation example, the switching timing of the receiving gutter plates 13.15 and l7 was explained as being performed based on the detection output of the ejection sensor 19, but instead of this, the switching timing of the receiving gutter plates 13. The control may be such that the gutter plate is switched after a predetermined period of time has elapsed.

Furthermore, it goes without saying that the opening and closing operations of the gutter plate 15 may be controlled by energizing the spring 25 shown in FIGS. 6 and 7.

(Effects of the Invention) As explained above, according to the present invention, when the discharge detection means detects the discharge of grains to the outside of the machine, the receiving gutter plate moving means moves the receiving gutter plate to the grains based on the detection signal. Since the grain transfer position is switched to the discharge position and the residual grains are discharged outside the machine by gravity, the work efficiency in removing residual grains is greatly improved, and the danger of removing them can be eliminated. No more forgetting to do the work, and the work is done more reliably.

[Brief explanation of drawings]

Fig. 1 is a schematic configuration diagram of an embodiment of the present invention, Fig. 2 is a gutter plate 1
FIG. 3 is a diagram showing the mounting position of the discharge sensor, and FIGS. 4 and 5 are a cross-sectional view and a vertical cross-sectional view, respectively, showing an example of the moving mechanism for the receiving gutter plate 15. ,
6 and 7 are a cross-sectional view and a vertical sectional view showing other examples, respectively, FIG. 8 is a block diagram of a control system according to an embodiment of the present invention, FIG. 9 is a flowchart showing an example of its operation, and FIG. The figure is a schematic diagram showing an example of a conventional device. 12 is a grain feeding spiral, 14 is a rotary valve, 13.15
．． 17 is a receiving gutter plate, 16 is a cross-feeding spiral, 19 is a discharge sensor, and 30 is a CPU. Patent applicant: Iseki Agricultural Machinery Co., Ltd. Agent Tetsuri Maki (and 2 others) Figure 3 Figure 4 Figure 5 Figure 8 Figure 9

Claims (1)

[Scope of Claims] A grain transporting body is provided which rotates wing pieces fixed to a rotating shaft to transport grains on a receiving gutter plate, and this transporting body is driven to circulate grains in the machine. In a circulating grain dryer that discharges grains to the outside of the machine, the receiving gutter plate of the grain transfer body is provided so as to be switchable between an upward transfer position and a downward discharge position, and a discharge device that detects the discharge of grains to the outside of the machine. A residual grain discharging device characterized in that it is provided with a detection means and a receiving gutter plate moving means for switching the receiving gutter plate from its transfer position to its discharge position based on the detection signal.