JPH059644Y2 - - Google Patents

Description

[Detailed description of the invention] "Field of industrial application" This invention is aimed at rice, wheat, etc.
This relates to a grain test dryer equipped with multiple sample containers for drying sample grains for each receiving lot collected from a receiving weighing machine to a substantially constant moisture content in shared grain drying facilities such as rice centers, country elevators, and dry stores, which are composed of a receiving section, drying section, storage section, and preparation/shipping section.

``Prior art'' Conventionally, when discharging sample grains from a sample container, the shutter that blocks the opening bottom of the container was opened. This has the disadvantage of complicating the structure and increasing costs.

Therefore, in Japanese Patent Application No. 61-240138, the present applicant proposed two sample grain drying positions in which the opening faces the top side and a sample grain discharge position in which the opening faces the bottom side by rotating the sample container. We have developed a technology to switch to

``Problems to be solved by the invention'' However, in the case of the above-mentioned prior art, when the sample container is maintained in the sample grain ejection position, the upper surface side is closed by the back part, so this container cannot be exposed to dry air. (Hot air) cannot pass through the sample container, and the drying air intensively passes through the sample container in the sample grain drying position.The drying environment varies depending on the proportion of containers in the discharge position and the drying position, resulting in uneven drying and drying. Problems such as time variations occurred.

"Means for Solving the Problems" However, in the present invention, a ventilation hole is provided on the back surface of the sample container.

"Operation" Therefore, according to the present invention, regardless of the proportion of the sample container in the sample grain discharging position and the sample grain drying position, a constant amount of drying air is always applied to the sample grains contained in the container in the drying position. It is possible to prevent the uneven drying of the sample grains as in the conventional method, and also to make the drying time constant and to easily perform automatic control of the entire apparatus.

"Embodiments" Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Figure 1 is an explanatory diagram of the sample container, and Figure 2 is an explanatory diagram of the entire facility. Sample paddy is taken out from the receiving and weighing section 1 and dried and self-inspected. Raw paddy is input by individual and consignment. A receiving hopper 2 that measures the weight of the rice, a rough sorter 5 that carries in the raw paddy from the hopper 2 via conveyors 3 and 4 and removes straw waste from the paddy, and a rough sorter 5 that removes the rice from the rough sorter 5. The receiving and weighing unit 1 is composed of a receiving and weighing machine 6 that stores and weighs paddy, an autosampler 7 that collects sample paddy for self-inspection by the receiving and weighing machine 6, and measures the weight and moisture content of paddy. In addition to continuous measurement, the paddy is transported from the drying section to the preparation and shipping section where hulling and sorting is carried out, where it is prepared into brown rice and stored or shipped. The system is configured such that the receiving (code) number from the receiving operation panel 10 and the receiving data (paddy weight and moisture content) from the output section of the weighing machine 6 are inputted into the system.

Furthermore, it is equipped with a quantitative take-out device 11 for taking out sample paddy for self-inspection, and a part of the raw paddy that has been weighed by the weighing machine 6 is taken out as sample paddy through the autosampler 7 to the take-out device 11. A fixed amount (approximately 800 grams) of sample paddy uniformly taken out from prepared raw paddy is transferred to a test dryer 13 (described later) by a sample transfer device 12, and a fixed amount is measured during this process for each lot to be shipped and weighed individually and by consignment. Sample amount of paddy is transferred to sample transfer device 1
It is configured so that it can be taken out at 2.

It also includes a test dryer 13 that dries the sample paddy sent from the sample transfer device 12 to a substantially constant moisture content, and when the sample paddy is sent from the transfer device 12 to the dryer 13, the acceptance number of the sample paddy is read by a number reader, and When the sample paddy after drying is discharged from the outlet 14, the receiving number of the sample paddy released is read by a number reader, and the moving position of the sample paddy is inputted to the central controller 9 via the operation panel 15. ing.

Next, the dried sample rice sent out from the test dryer 13 is transferred to a sample transfer device 16.
A manual take-out valve 17 for taking out the paddy appropriately through the dryer 13, a standby box 18 for temporarily waiting the sample paddy from the dryer 13, and a standby box 18 for temporarily waiting the sample paddy from the standby box 18, and separating the sample paddy from the standby box 18 into sized grains (sized brown rice) and waste grains (waste rice). A self-inspection machine 19 separates and measures these ratios, and a self-inspection machine 19 tests the sample paddy from the take-out valve 17.
The reception number of the sample paddy to be sent to the standby box 18 and the sample paddy to be discharged from the box 18 is input to the central controller 9 via the operation panel 21, and The amount of dry sample rice (approximately 300 grams) required for one self-inspection is put into the receiving hopper of the self-inspection machine 19 through the sample transfer device 22 and quantitative branching valve 23, and then the sample is put into the receiving hopper of the self-inspection machine 19. Excess dried sample paddy is sealed and packaged, and a consignment number is printed on the bag or the consignment number is attached to a card and the card is enclosed in the bag and stored for retesting and taken out from the self-inspection machine 19. The unpolished rice to be sampled is sealed and packaged by the sample packaging machine 26 via the sample transfer device 25, and a consignment number is printed on the bag based on the signal from the operation panel 27 of the self-inspection machine 19, and the bag is stored. Centralized control device for the amount of brown rice and waste rice 9
The system is configured to calculate and record this percentage.

As shown in FIGS. 3 to 5, the test dryer 13 includes a large number of sample containers 29, each holding sample paddy input from the supply hopper 28, and A single supply transfer hopper 30 that transfers the sample rice to a predetermined sample container 29, and two parallel transfer conveyors 32 that transfer the sample rice discharged from the sample container 29 after drying to one side of the dryer machine casing 31. , a discharge conveyor 33 for further moving the sample paddy from the transfer conveyor 32 to the delivery port 14 , and a discharge conveyor 33 disposed in the lower part of the machine casing 31 to blow hot air (dry air) into the heater chamber 35 from the intake port 34 .
an electric heater 36 that takes in the heat, and the heater chamber 35
an air duct 40 that sends hot air taken in to the upper drying chamber 37 in the machine housing 31 through upper and lower communication ports 38 and 39; and an exhaust fan 42 that sucks and exhausts air from the drying chamber 37 to the outside through the exhaust port 41. When the moisture content of the sample rice in the sample container 29 is dried to a preset state, it is taken out to the outside from the delivery port 14 via each conveyor 32, 33.

As shown in FIGS. 6 and 7, the sample containers 29 are formed into a substantially regular quadrangular shape, and are arranged in a grid pattern on a holding plate 43 to hold the upper ends of the containers 29. It is provided so as to be flush with the upper surface of the plate 43. The container 29 has an opening 44 at the front face in the upper face and four side faces, and a net 45 is stretched over the lower face, and the opposing left and right side faces 29
a, 29a are rotatably supported by the holding plate 43 via a rotation shaft 46 and a bearing 47. Further, the container 29 has left and right side portions 29a and a holding plate 43.
A spring 50 beyond the fulcrum is stretched between them via pins 48, 49, and forward/reverse reversing members 51, 5 for reversing the container 29 approximately 90 degrees on the other left and right side surfaces 29a.
Bushing rods 53 and 54, which are switching members for pressing and operating these reversing members 51 and 52 from above, are attached to the holding plate 43 via return springs 55 and guide members 56, respectively. When installed, the back part 29 is usually on the top side.
The container 29 is maintained in the sample husks discharge position B in which the lower surface side is exposed and the lower surface side is open, while the shaft 46 is held by pressing the push rod 54 against one of the reversing members 52 when charging sample paddy and in the dry state. The container 29 is maintained in the sample grain drying position A in which the container 29 is rotated approximately 90 degrees around the center to expose the net 45 on the lower side and the upper surface is open. It is provided so that it can be put in and dried. Furthermore, after the paddy is dried in this container 29, by pressing the push rod 53 against the other reversing member 51, the container 29 is rotated approximately 90° in the normal direction about the shaft 46 and returned to the original discharge position B. By rotating the container 29 by selectively pressing the push rods 53 and 54, the single opening 44 is configured to switch between the input port and the discharge port. Note that 43a is a shielding plate of the holding plate 43 that covers the opening 44 on one side of the container 29 when the container 29 is in the drying position;
Both side edges 45 of the net body 45 in the drying and discharge position
a, 45b to the lower end of the shielding plate 43a and the holding plate 4
3 is provided in such a way that it is held in contact with the upper surface of the container 3 by the force of the spring 50, thereby acting as a stopper during these drying and discharge positions.

On the other hand, the movable hopper 30 is supported by a machine casing 31 via a traveling mechanism 57 so as to be movable vertically and horizontally, and has a pair of vertical feed chains 58, 58 that guide the movement of the hopper 30 in the vertical direction (direction of arrow a). The chains 58, 58 are provided on both left and right sides of the machine casing 31 via drive sprockets 59 and driven sprockets 60, and are driven by a vertical feed motor 62 via a gear transmission mechanism 61. The hopper 30 is configured to be moved in the vertical direction together with the lateral feed guide 63 connected thereto.

In addition, the hopper 30 is moved laterally (in the direction of arrow b).
A cross-feeding chain 64 for guiding movement is suspended on the cross-feeding guide body 63 via a drive sprocket 65 and a driven sprocket 66, and a cross-feeding motor 67 mounted on the guide body 63 drives the chain 64 to Each motor 62, 6 is provided to move the hopper 30 laterally, and the motors 62, 6 are arranged to move and guide the hopper 30 to a predetermined empty container 29 position based on a command signal output from the central controller 9.
7 is driven and controlled.

Furthermore, the hopper 30 has a shutter 6 at the bottom.
8, so that when the shutter 68 is opened by operating a solenoid 69, the sample rice in the hopper 30 is thrown into the container 29. In addition, the push rods 53, 54
A pair of motors 70 and 71, which are drive operating members for pressing the hopper 30, are integrally fixed to the hopper 30 via a frame 72.
Rod operating tools 75 and 76 are interlocked and connected to 0 and 71 via a gear case 73 and a screw shaft 74, respectively.
are moved up and down by the drive of these motors 70, 71, and the push rods 53, 54 at the movement position of the hopper 30 are pressed as appropriate to rotate the container 29 at this position and switch its input port and discharge port. It is configured to do this.

Furthermore, in a sample paddy discharge gutter 77 interposed between the feeding end of the discharge conveyor 33 and the sending port 14, the moisture contained in the sample paddy taken out into the gutter 7 is detected by a change in capacitance. A plate-shaped moisture sensor 78 is installed, and when the sample rice is dried to the set moisture content value, it is taken out to the outside of the dryer 13 via the switching valve 79, and when the moisture content value has not been reached and the drying is insufficient, the sample rice is taken out from the supply hopper 28. From the reducing hopper 80 above the dryer 13, which is arranged diagonally, the dried material is returned to the original container 29 via the movable hopper 30 for re-drying.
Also, during such a reduction operation, the supply hopper 28
When a consignment is received in which paddy is supplied, the paddy is placed in the container 29 with priority over the reduced paddy.

Note that an operation panel 1 provided on one side of the dryer 13
5, various data such as the alias of the person bringing in the sample paddy being dried, the remaining drying time, and the position of the empty container 29 are displayed electronically.

As shown in FIG. 1, the sample container 29...
A plurality of ventilation holes 81... are opened in the back part 29b of the container 29.
The amount of hot air passing through the container 29 from above to below is approximately the same whether there is paddy inside or not.

Although the ventilation hole 81 in this embodiment has three small circular holes, the shape and number are not limited thereto, and the size (diameter)
It is enough that the rice does not spill out.

This embodiment is configured as described above and is installed in a rice center, country elevator, dry store, etc. Raw paddy harvested by a combine harvester or the like is input into the receiving hopper 2 individually and by cargo, and the receiving hopper 2 is also A fixed amount of homogenized sample paddy is taken out from the weighed raw paddy by the machine 6 to the sample transfer device 12 via the quantitative take-out device 11, while the sample paddy in the transfer device 12 is set and contained in the test dryer 13. After drying the paddy to a water level, the dried sample paddy is fed into the self-inspection machine 19, which weighs the unpolished rice and scrap rice to calculate their ratio.The central controller 9 separates each part based on the consignment number. The operation is controlled, and the proportion of processed brown rice for each individual and consignment is registered in the office computer 8 based on the self-inspection data of the sample paddy corresponding to the consignment number.

During this operation, the sample paddy put into the supply hopper 28 of the test dryer 13 is once received by the movable hopper 30, which is held at a position below the supply hopper 28 when normal running is stopped, and then transferred to the central controller. The traveling mechanism 57 is operated based on the command signal from 9, and the moving hopper 30 travels to the predetermined empty container 29 position in the sample grain discharge attitude B, and the hopper 30 reaches the predetermined container 29 position. At this time, when the motor 71 is driven, the reversing member 52 is pushed downward via the rod operating tool 76 and the push rod 54, and the container 29 is rotated counterclockwise in FIG. 6 about the shaft 46. The spring 50 crosses over the fulcrum and reaches the left and right side portions 2.
9a, 29a are held in contact with the shielding plate 43a by the force of the spring 50, and after switching to the drying position A in which the mesh body 45 faces the bottom side and the opening 44 faces the top side, the solenoid 69 is operated. Tsute Shyatsuta 6
8 is opened, sample paddy is charged from the hopper 30 into the container 29 through the opening 44, and the moisture is evaporated by being supplied with heat by hot air for the time set on the timer based on moisture conversion at the time of receiving the cargo. This is done to reduce the moisture content in the paddy to a set value. After the time set by the timer has elapsed (after drying the paddy), the other motor 70 is driven to push the reversing member 51 downward via the rod operation tool 75 and the push rod 53, so that the container is in the drying position A around the shaft 46. 29 rotates clockwise in FIG.
One side edge 45b is held in contact with the upper surface of the holding plate 43 by the force of the spring 50, and the container 29 has a back surface 29b with a ventilation hole 81 facing the upper surface and an opening 44 facing the lower surface. While returning to the original discharge position B, the dried sample rice is discharged to the lower transfer conveyor 32. By rotating the container 29 approximately 90 degrees forward and backward in this manner, the single opening 44 is not allowed to be switched to the input port or the discharge port of the container 29, but a shutter structure is required to close the discharge port. This type of dryer 13 in which a large number of these containers 29 are arranged can be effectively used without the need for such a configuration.

Furthermore, in the container 29 in the drying position A containing paddy, hot air is passed from the opening 44 on the top side through the gaps between the paddy and through the mesh 45 on the bottom side, while the container 29 is discharged without paddy inside. Container 29 in posture B
In this case, the hot air is narrowed down to a state where it passes through the gaps between the rice grains and passed through the opening 44 on the lower surface side from the passage hole 81 of the back surface portion 29b located on the upper surface side. Unlike installing a separate net on the back surface 29b or the back surface 29b where no ventilation holes 81 are provided, only the amount of hot air that passes through the container 29 in the drying position A containing the paddy is used. It becomes possible to pass the hot air to the container 29 in the discharge position B that does not contain paddy, and the container 29
Regardless of the proportions of postures A and B, the sample rice is always properly dried by constant supply of hot air.

On the other hand, the moisture content of the sample paddy taken out to the sample paddy discharge gutter 77 via the conveyors 32 and 33 is detected by the moisture sensor 78, and the sample paddy that has reached the set moisture content is sent to the standby box for the next process. 18 or directly transferred to the quantitative branching valve 23, and sample paddy that is insufficiently dried and does not reach the set water content is transferred to the switching valve 79 and the reduction hopper 8.
0 and the original container 29 again via the moving hopper 30
The central controller 9 performs drying for the re-drying time calculated based on the detected value of the moisture sensor 78.

"Effects of the Invention" As is clear from the above embodiments, the present invention is equipped with a large number of sample containers 29 for drying sample grains from each receiving rod collected from the receiving weighing machine 6 to a substantially constant moisture content. The container 29 is formed into a substantially regular quadrangular shape having a cubic shape, with openings 44 at the top surface and the front surface inside the four side surfaces, and a net 45 at the bottom surface.
sample grain drying position A in which the mesh body 45 is exposed on the lower surface side and the upper surface side is open, and sample grain discharge position B in which the back surface part 29b is exposed on the upper surface side and the lower surface side is open. In a test dryer structure in which the container 29 is switched by this rotation, a ventilation hole 81 is provided in the back surface 29b of the container 29, and the sample container 29 is in the sample grain discharge position B and the sample grain drying position A. Regardless of the ratio, a constant amount of drying air can always be supplied to the sample grains contained in the container 29 in the drying position A,
Not only can drying of the sample grains be prevented from being unevenly dried as in the conventional method, but also the drying time can be made constant and the entire apparatus can be automatically controlled easily.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram of the sample container, Figure 2 is an explanatory diagram of the entire facility, Figure 3 is a sectional side view of the test dryer, Figure 4 is a front sectional view of the same, Figure 5 is a plan view of the same, and Figure 6 is an explanatory diagram of the sample container. The figure is an explanatory side view of the same part, and FIG. 7 is a rear view of the same part. 3... Receiving weighing machine, 13... Test dryer,
29...sample container, 29b...rear part, 44
...Opening, 45...Network, 81...Vent hole, A...
...Sample grain drying position, B...Sample grain discharge position.

Claims (1)

[Scope of utility model registration request] A large number of sample containers are provided for drying sample grains from each receiving rod collected from a receiving weighing device to a substantially constant moisture content, and the containers are formed into a cube shape with the top and four side surfaces open at the front. With,
A sample grain drying position in which a net is stretched over the lower surface, the net is exposed to the lower surface and the upper surface is open, and a sample grain discharge position is in which the back surface is exposed to the upper surface and the lower surface is open. A test dryer for grains having a structure in which the container is switched by the rotation thereof, characterized in that a ventilation hole is provided on the back surface of the container.