JPH0731102B2 - Grain test dryer - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is mainly applied to rice, such as wheat, and is intended for use as a cargo receiving unit.
At a grain co-drying facility such as a rice center, a cantilever elevator, and a dry store, which is composed of a drying section, a storage section, a preparation and shipping section, etc., a sample grain of each consignment lot collected from a consignment weighing machine has a substantially constant water content. It relates to a grain test dryer with a large number of drying sample containers.

"Prior Art" The applicant of the present invention has already filed an application for a grain test dryer as a means for automatically drying sample grains in Japanese Patent Application No. 61-74431. .

"Problems to be solved by the invention" However, in the case of the above means, since only one input hopper for supplying the sample grain to the test dryer is installed, it is once taken out from the sample container. Even when the sample grain is not dried enough and is returned to the sample container again, it is supplied to the input hopper and the new sample grain sent from the load receiving and weighing machine overlaps with the feeding work, and There was a problem that the supply of goods, that is, the receiving work had to be suspended.

[Means for Solving Problems] Accordingly, the present invention detects a dry state of a supply hopper that appropriately supplies the sample grain from the load receiving and weighing machine to a sample container, and a sample grain that is taken out from the sample container. And a reducing hopper for returning the sample grain to the sample container when the moisture sensor detects a certain amount or more of the water content of the sample grain.

[Operation] According to the present invention, by providing the reducing hopper in the vicinity of the moisture detection position of the sample grain, the grain transport path at the time of re-drying can be minimized, and the sample for re-drying can be obtained. Even when the grain and the sample grain from the consignment overlap, the re-dried sample grain should be put on standby for a time in the reducing hopper and the sample grain from the consignment should be preferentially placed in the sample container. It is possible to perform a series of work efficiently without interrupting the receiving work.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings. First
The figure is a cross-sectional explanatory view of the test dryer, and Fig. 2 is an explanatory view of the entire facility. Sampled paddy is taken out from the cargo receiving and weighing section (1) for drying and voluntary inspection. Load receiving hopper (2) to load and weigh this
And the raw rice from the hopper (2) on the conveyor (3) (4)
Coarse sorter (5) that removes straw waste etc.
And a load receiving and weighing machine (6) for storing and weighing the paddy from the rough selecting machine (5), an auto sampler (7) for collecting sample paddy for voluntary inspection by the load and receiving weighing machine (6), etc. According to the above, which constitutes the cargo receiving and weighing section (1), the weight and moisture of the paddy are continuously measured, and the paddy is transported from the drying section to the preparing and shipping section which conducts the hull sorting, and is prepared into brown rice. While being stored or shipped, the central control unit (9) connected to the office computing unit (8) receives the load (code) number from the load receiving operation panel (10) and the output from the weighing machine (6). It is configured to input the receipt data (paddy weight and water content).

Furthermore, a quantitative extraction device (11) for taking out sample paddy for voluntary inspection is provided, and a part of the raw paddy that has been weighed by the weighing machine (6) is taken out as a sample paddy through the autosampler (7). ), And a fixed amount (approximately 800 grams) of sampled rice uniformly extracted from the unprepared raw rice shipped to the test dryer (13) described later by the sample transfer device (12) for individual and cargo A certain amount of sample paddy is taken out to the sample transfer device (12) in the middle of this work for each lot to be shipped and weighed.

Further, a test dryer (13) for drying the sanlud rice fed from the sample transfer device (12) to a substantially constant water content.
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 the dried sample paddy is released when the sample paddy is released from the outlet (14). The acceptance number of the sample paddy is read by a number reader, and the moving position of the sample paddy is input to the centralized controller (9) via the operation panel (15).

Next, a manual take-out valve (17) for taking out the dried sample paddy sent out from the test dryer (13) through a sample transfer device (16) and a waiting box for temporarily holding the sample paddy from the dryer (13). (18), a voluntary inspection machine (19) that divides the sample paddy from the standby box (18) into sized (sized brown rice) and shavings (scraped rice), and measures the ratio of these, and the extraction valve. A switching valve (20) for directly sending the sample paddy from (17) to the self-inspection machine (19), and receiving the sample paddy when sending it to the standby box (18) and discharging it from the box (18). The number is input to the centralized controller (9) through the operation panel (21), and the dry sample paddy from the standby box (18) is transferred to the central controller (9) through the sample transfer device (22) and the quantification branch valve (23).
Only the amount (about 300 grams) necessary for one time self-inspection is put into the receiving hopper of the self-inspection machine (19), and the sample packing machine (24) seals and wraps excess dry sample paddy, and the bag has the consignment number. Print or attach the receipt number to the card and enclose this card in the bag and store it for retesting. Also, brown rice taken out from the self-inspection machine (19) is used as sample brown rice and a sample transfer device (25). It is sealed and packaged by the sample wrapping machine (26) through the bag, and the bag is printed with the receipt number based on the signal from the operation panel (27) of the self-inspection machine (19) and stored. The amount is input to the centralized controller (9), and this ratio is calculated and recorded.

As shown in FIGS. 3 to 4, the test dryer (1
3) is a large number of sample containers (29) that hold the sample paddy fed from the supply hopper (28) for each case, and the sample paddy fed from the supply hopper (28) into a predetermined sample container ( 29), a single feed transfer hopper (30), and two parallel transfer conveyors (30) for moving the sample paddy discharged from the sample container (29) after drying to one side in the dryer machine (31). 32), a discharge conveyor (33) for further moving the sample paddy from the transfer conveyor (32) to the delivery port (14), and an intake port (34) arranged in the lower part of the machine casing (31). The electric heater (36) for introducing hot air into the heater chamber (35) and the upper and lower communication ports (38) (39) for the hot air introduced into the heater chamber (35) to the upper drying chamber (37) inside the machine (31). ) Through the air duct (40),
An exhaust fan (42) for sucking and discharging the air in the drying chamber (37) to the outside through the exhaust port (41), and when the water content of the sample paddy in the sample container (29) is dried to a set state The conveyor (32) (33) is used to take out to the outside of the delivery port (14).

As shown in FIGS. 5 to 6, the sample container (2
9)… is formed into an approximately regular tetrahedron shape, and the holding plate (4
The container (29) is disposed so as to be flush with the upper surface of the holding plate (43). Then, the container (29) has an upper side surface portion and one side surface portion of the four side surface portions opened (44), and a net body (45) is stretched on the lower side surface portion so as to oppose the left and right side surface portions (29a) (29a ) Is rotatably instructed to the holding plate (43) via a rotary shaft (46) and a bearing (47). In addition, the container (29) has one side surface (29a) and a holding plate (43).
A fulcrum crossing spring (50) is stretched via a pin (48) (49), and the container (29) is attached to the left and right side surfaces (29a).
The forward / reverse reversing members (51) (52) for reversing the reciprocating direction by about 90 ° are fixedly mounted via the respective shafts (51a) (52a).
1) The push rods (53) (54), which are switching members for pressing the (52) from above, are attached to the holding plate (43) via the return spring (55) and the guide member (56), respectively.
When the sample paddy is put into the container (29) and when it is in a dry state, the net (45) is exposed to the bottom surface to keep the container (29) in an accepting state where the top surface is opened, while one is placed when the sample paddy is discharged. By pushing the push rod (53) against the reversing member (51), the container (2) is centered around the shaft (46).
The container (29) is maintained so that the container (29) is rotated in the forward direction by about 90 ° so that the opening (44) faces downward, and the sample paddy in the container (29) is dropped downward. Further, when the container (29) is ready to be discharged, the container (29) is rotated about the shaft (46) about 90 ° by pressing the push rod (54) against the other reversing member (52). The container is returned to its original receiving condition, and the container (2) is operated by the selective pushing operation of the push rods (53) (54).
The inlet and outlet are switched by the single opening (44) in 9). Note that (43a) is a shield plate of the holding plate (43) that covers the opening (44) on one side surface of the container (29) when the container (29) is ready to be received. When receiving and discharging, both side edges (45a) (45b) of the mesh body (45) are held in contact with the lower end of the shield plate (43a) and the upper surface of the holding plate (43) by the force of the spring (50). Therefore, it is provided as a stopper at the time of these receiving and discharging states.

On the other hand, the moving hopper (30) is a machine (31) supported by a traveling mechanism (57) so as to be vertically and horizontally movable, and a pair for moving and guiding the hopper (30) in the vertical direction (direction of arrow a). The vertical feed chains (58) (58) of the machine are arranged on the left and right sides of the machine (31) via the drive sprockets (59) and the driven sprockets (60), and these chains (58) (58) are driven to gear. By the vertical feed motor (62) via the transmission mechanism (61), the hopper (30) is vertically moved integrally with the lateral feed guide body (63) connected to the chains (58) (58). Is configured as follows.

A sprocket (65) for driving the transverse feed chain (64) that still guides the hopper (30) in the lateral direction (direction of arrow b).
And a lateral feed motor (67) mounted on the guide body (63) to stretch the chain (64) by driving the chain (64) via the driven sprocket (66). 30) is provided so as to move in the lateral direction, and each motor is provided to move and guide the hopper (30) to a predetermined empty container (29) position based on a command signal output from the centralized controller (9). (62) and (67) are drive-controlled.

By the way, the hopper (30) has a shutter (68) at the bottom.
Is provided so that the sample paddy in the hopper (30) can be put into the container (29) when the shutter (68) is opened by operating the solenoid (69).
Further, a pair of motors (70) (71), which are drive operation members for pressing the push rods (53) (54), are integrally fixed to the hopper (30) via a frame (72), Gear case (73) for these motors (70) (71)
The hopper (30) is moved by vertically moving rod operating tools (75) (76) which are interlockingly connected with each other via a screw shaft (74) by driving these motors (70) (71).
The push rods (53) (54) at the moving position are appropriately pressed to switch the inlet and outlet of the container (29) at this position.

Further, in the sample paddy discharge gutter (77) interposed between the feed end portion of the discharge conveyor (33) and the feed outlet (14), the water content of the sample paddy taken out to the gutter (77) is contained. A plate-shaped moisture sensor (78) that detects changes in capacitance is installed. When the sample paddy has dried to the set water content value, it is taken out to the outside of the dryer (13) via the switching valve (79) and the set water content is set. When the value does not reach the value and the drying is insufficient, the reducing hopper (80) above the dryer (13), which is arranged diagonally to the supply hopper (28), transfers it to the original container (29) again via the moving hopper (30). It is provided so that it can be returned and dried again. Further, during such a reduction operation, the supply hopper (28)
When the rice is supplied to the paddy, the paddy (29) is put into the paddy prior to the paddy.

The operation panel (15) provided on one side of the dryer (13) is used to electronically display various data such as a personal name of the sample paddy being dried, remaining drying time, and empty container (29) position.

This embodiment is configured as described above, and is installed in a rice center, a cantilever elevator, a dry store, etc., and the raw rice harvested by the combine and the like is put into the cargo receiving hopper (2) for each individual and each cargo port, and Quantitative take-out device (11) from raw rice that has been weighed by the cargo receiving and weighing machine (6)
A certain amount of the homogenized sampled rice is taken out to the sample transfer device (12) through the, while the sampled rice of the transfer device (12) is dried by the test dryer (13) to the set water content, and the dried sample The sampled paddy is put into the self-inspection machine (19) to measure the leveled brown rice and the scrapped rice to calculate the ratio of these, and the central controller (9) controls the operation of each part based on the consignment number. Based on the self-inspection data of the sample paddy corresponding to the consignment number, the proportion of flat-polished rice by individual and shipping port is registered in the office computing unit (8).

During such work, the sample paddy put in the supply hopper (28) of the test dryer (13) is once received by the moving hopper (30) which is held at the lower position of the supply hopper (28) when the traveling is stopped normally. After that, the traveling mechanism (57) is operated based on the command signal from the centralized controller (9) to move to a predetermined empty container (29) position.
0) travels and the hopper (30) moves to the specified container (2
9) When it reaches the position, the shutter (68) is opened by the operation of the solenoid (69), and the sample paddy is discharged from the hopper (30) into the container (29). After that, the amount of heat set by the timer for moisture conversion at the time of receiving cargo is supplied by the amount of heat supplied by the hot air to evaporate the moisture and reduce the moisture content in the paddy to the set value. The sample paddy is discharged to the transfer conveyor (32) below the container (29). That is, the container (29) is kept in a receiving state in which the mesh body (45) faces downward and the opening (44) faces upward as shown in the states of FIGS. 5 to 6 during normal loading and drying. The rod operating tool (75) and the push rod (5) are driven by the drive of the motor (70).
The reversing member (51) is pressed downward via 3) and the shaft (4
By rotating the container (29) clockwise around the point 6) in FIG. 5, the spring (50) crosses the fulcrum and the net (45) is moved.
When the one side edge (45b) of the container (29) is held in contact with the upper surface of the holding plate (43) by its spring (50) force, the container (29) is opened (4).
The sample paddy in the container (29) is discharged by switching the discharge condition to the B condition in which 4) is faced downward. By rotating the container (29) forward and backward by approximately 90 ° in this way, not only is the single opening (44) switched to the inlet or outlet of this container (29), but also the outlet is closed. It is not necessary to provide a shutter structure, etc., and can be effectively utilized in this kind of dryer (13) in which a large number of these containers (29) are arranged.

On the other hand, the sample paddy taken out to the sample paddy discharge gutter (77) through the conveyors (32) (33) is detected by the moisture sensor (78) as to whether or not the sampled paddy has reached the set water content. While being transferred to the standby box (18) in the next step or directly to the metering branch valve (23), insufficiently dried sample paddy that does not reach the set water content will cause a changeover valve (79) and a reducing hopper (80) and It is returned to the original container (29) again via the moving hopper (30), and the central controller (9) performs drying for the re-drying time calculated based on the detection value of the moisture sensor (78). The installation positions of the supply hopper (28) and the reduction hopper (80) are not limited.

"Effects of the Invention" As is apparent from the above examples, according to the present invention, a large number of sample containers (dry sample granules for each cargo receiving lot sampled from the cargo weighing machine (6) to a substantially constant water content ( 29)
In a structure of a test dryer (13) equipped with, a supply hopper (28) for appropriately supplying the sample grains from the load receiving and weighing machine (16) to a sample container (29) and being taken out from the sample container (29). A moisture sensor (78) for detecting the dry state of the sample grain, and a reducing sensor for returning the sample grain to the sample container (29) when the moisture sensor (78) detects a certain water content of the sample grain or more. Hopper (8
0), the reduction hopper (80) is provided in the vicinity of the moisture detection position of the sample grain so that the grain transportation route at the time of re-drying can be minimized and the re-drying Even when the supply of the sample grain and the sample grain from the consignment overlaps, the re-drying sample grain reduction hopper (80) is made to stand by temporarily and the sample grain from the consignment is given priority to the sample container ( It is possible to put it in the 29), and it has a remarkable effect such as an efficient series of work that does not interrupt the load receiving work.

[Brief description of drawings]

1 is a sectional side view of the test dryer, FIG. 2 is an explanatory view of the entire facility, FIG. 3 is a sectional front view of the test dryer, FIG. 4 is the same plan view, FIG. FIG. 6 is a front explanatory view of the previous figure. (6) …… Receiving weighing machine (13) …… Test dryer (28) …… Supply hopper (29) …… Sample container (78) …… Moisture sensor (80) …… Reduction hopper

Claims (1)

[Claims] 1. A test dryer structure comprising a large number of sample containers for drying sample grains for each of the receiving lots collected from the receiving and weighing machine to a substantially constant water content. A supply hopper for appropriately supplying the sample container, a moisture sensor for detecting the dry state of the sample grain taken out from the sample container, and the sample when the moisture sensor detects a certain amount or more of the water content of the sample grain. A grain test dryer, comprising a reducing hopper for returning grains to a sample container.