JP2004073935A - Fractional rice recovery method and device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an odd amount of rice recovery method capable of returning the odd amount of rice to a transporting passage while controlling the kind of the odd amount of rice. <P>SOLUTION: A recovering line for connecting packers 30 to conveying lines 14, 20 to which the odd amount of rice is introduced to be transported. The recovering line comprises hoppers 40 for receiving the rice, a suction line 34 for sucking and transporting from the hoppers 40, collection tanks 36 for temporarily retain the rice, and a confluent line 38 for introducing the rice to the conveying line 14. The rice is stored in the confluent line 38 for every kind, introduced to the conveying line 14 according to the vacancy of the conveying line 14, and again introduced into a bagging process. In order to avoid mixing of different kinds, the usage conditions of the each line and tank are controlled by a control section. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method and an apparatus for collecting rice fragments, and more particularly, to a method and an apparatus for collecting rice fragments generated in a bag-packing process of milled rice.
[0002]
[Prior art]
In a rice mill, etc., the milled rice milled for each variety by the milling machine is once stored in a milling tank, and then weighed in a measuring tank in units of 10 kg, 5 kg, etc., and the specified number of bags. Is carried out by a packer and transported to a shipping line for shipment. At the time of bag processing of milled rice, foreign substances such as powder and stones such as paddy and bran contained in the milled rice are sorted by a sorter, and after these foreign substances are removed, the milled rice is bagged. You. For this reason, the milled rice sent to the bagging process is paid out more than the total amount calculated from the unit amount and the number of bags in consideration of an error when foreign matter is removed. Therefore, when the bagging of the specified amount of milled rice is completed, a surplus is always generated. This surplus fractional rice has a very low yield when it comes to disposal. Therefore, it is necessary to return such a small amount of rice to the rice polishing tank again. At present, the work of returning the fractional rice to the rice polishing tank is performed manually by workers. That is, a small amount of rice is extracted from the packer, loaded on a cart or the like, and transported to a rice polishing tank. There are cases where different types of milled rice are stored in the installed multiple milling tanks, and workers sort out the milled rice tanks storing the same type of rice and return the scrap rice to this tank. ing.
[0003]
[Problems to be solved by the invention]
By the way, the amount of end rice generated during the bagging process of each variety is not so large, but when rice of various varieties is bagged throughout the day, it exceeds 1 ton in total. A small amount of rice is generated. Since all of the huge amount of rice in such a quantity is loaded on a cart or the like and transported and returned to the rice polishing tank, the burden on the operator is extremely large. For this reason, it has been pointed out that the operation of recovering a small amount of rice is inefficient in terms of time and human resources.
SUMMARY OF THE INVENTION An object of the present invention is to provide a method and an apparatus for recovering fractional rice, which can efficiently collect the fractional rice while managing the variety thereof.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the method for recovering end-piece rice according to the present invention is a method of producing rice in a bag-packing process of rice milled out of a rice mill and bagged through a transport line and a rice-milling tank. A method for collecting small pieces of rice, wherein the small pieces of rice are collected and temporarily stored for each variety, and the collected small pieces of rice are returned to the rice polishing tank for each variety via the transport line. It is characterized by:
[0005]
The device for recovering fractional rice according to the present invention comprises: a rice transporting system having a transport line and a rice polishing tank for transporting rice for each variety from a rice milling machine to bag processing means; And a plurality of recovery tanks for temporarily storing the end rice transported by the suction line for each variety, and a merging line for introducing the end rice from the collection tank to the transport line. And a control unit for controlling the end rice transported to the recovery line to be returned to the rice polishing tank from the transport line for each variety. It is preferable that the suction line uses suction means for applying a suction negative pressure for sucking and transporting the end rice. The recovery tank and the rice polishing tank are appropriately selected by the control unit, and end rice is stored for each variety.
[0006]
[Action]
With the above-described configuration, the small amount of rice generated in the rice polishing process is transported through the recovery line and returned to the rice polishing tank again for each variety. In the recovery line, the introduction time and the like of each piece of introduced rice into each line are appropriately managed by the control unit, and it becomes possible to automatically introduce the piece of rice into the transport line.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a scrap rice collecting device according to the present invention will be described with reference to the drawings. FIG. 1 is an explanatory view of a scrap rice collecting apparatus according to the present embodiment.
In a rice mill or the like, milled rice transported from the rice milling machine by the rice milling transport system 10 is packaged in units of 10 kg, 5 kg, or the like and shipped. In the rice-milling transport system 10, the milled rice is milled by a milling machine (not shown) for each variety such as a production area and a variety, and stored in one of the cushion tanks 12A and 12B. Each of the cushion tanks 12A and 12B is connected to a transport line 14 for pumping rice by air pressure, and the rice is transported to the plurality of rice tanks 16 through the transport line 14. Since it is not preferable that the varieties of the polished rice are mixed, the transport line 14 and the polished rice tank 16 are basically used only for polished rice of the same varieties. That is, when all rice of a certain type is dispensed from the cushion tank 12A to the rice polishing tank 16A and the transport line 14 is vacant, then another type of rice is transported from the cushion tank 12B through the transport line 14 and the rice mill 16B. The rice of each variety is pumped to separate rice tanks 16 while checking the availability of the transport line 14. It should be noted that a blended rice obtained by mixing several kinds of varieties is regarded as a kind of varieties.
[0008]
The milled rice pumped from the cushion tank 12 is separated into air and milled rice by a separator 18 and stored in the milled rice tank 16. A plurality of milling tanks 16 are provided, and store milled rice that is successively pumped from the milling machine for each variety. Thereafter, the milled rice is transported from the milled rice tank 16 to the bagging process through the transport line 20 and sent to one of the plurality of measuring tanks 22 installed. The transport line 20 is provided with a branch valve 24 at a point where each of the separators 19 branches. Further, switching chute valves 25, 25,... For determining the measuring tank 22 to be charged are provided below the separator 19, and the control unit 26 controls which of the measuring tanks 22 the milled rice is sent to. I have. In the same way as the transport line 14, the transport line 20 also adjusts the transport time of each type while avoiding mixing of types.
[0009]
The separator 19 provided in the preceding stage of the measuring tank 22 removes air contained in the milled rice pumped by pneumatic transportation. Further, a sorting machine 28 is provided at a stage subsequent to the measuring tank 22, and foreign substances such as rice balls and insects mixed in the milled rice are removed therefrom. Thereafter, the milled rice is sent to the packer 30 and weighed according to a unit amount of 10 kg, 5 kg or the like, and packed in a bag. Since the unit quantity to be shipped and the number of bags are defined in advance, the milled rice pumped from the milling tank 16 is paid out more in anticipation of a reduction in the amount of foreign matter removed by the former sorter 28. I have. However, since the amount of foreign matter mixed varies from time to time, not all of the dispensed rice is packed in the bag, and when the bag processing is completed, surplus end rice is always generated. In the present embodiment, a scrap rice collecting device 32 for collecting such scrap rice and returning it to the transport line 14 is provided.
[0010]
The collecting device 32 includes a suction line 34 for transporting the piece of rice from the packer 30 as shown in a dotted frame, and a plurality of collection tanks 36 for temporarily storing the piece of rice sent from the suction line 34. And a merging line 38 for merging the end rice from the collecting tank 36 to the transport line 14. A hopper 40 is provided in each of the packers 30, 30 in which the rice-packing process is performed, and the scrap rice generated after the bag-packing process is dropped into the hopper 40. The work of dropping rice into the hopper 40 may be performed manually by an operator. However, a connection pipe 42 that can be attached to the rice removal opening of the packer 30 is provided, and the switch 44 is turned on after the bag filling process is completed. Then, the connection pipe 42 is attached to the rice dropper and the rice is dropped into the hopper 40.
[0011]
Each hopper 40 is provided with a discharge pipe 46 communicating with the suction line 34. Each of these discharge pipes 46 is provided with a valve 48 to control the timing of sending the end rice to the suction line 34. As the valve 48, an on-off valve such as a shutter for temporarily closing the discharge pipe 46 is used. The control of the opening and closing of the valve 48 is performed by the control unit, and the opening and closing of the discharge pipe 46 is performed while checking the availability of the suction line 34.
[0012]
The outlet side of the suction line 34 is connected to the separator 50. A suction fan 52 is provided in the separator 50, and a suction negative pressure is applied to the inside thereof to suction and transport the end rice introduced into the suction line 34. That is, the suction line 34 is always in a negative pressure state by the suction fan 52, and by opening the valve 48 on the receiving side of the suction line 34, it is possible to suction and transport the small amount of rice stored in the hopper 40. Become. The small amount of rice transported to the separator 50 is separated into air and milled rice, and stored in a plurality of recovery tanks 36 installed at the subsequent stage. In the present embodiment, four recovery tanks 36 each having a capacity of 50 kg are used.
[0013]
Each recovery tank 36 is connected to the receiving side of the merge line 38. No special transportation means is provided in the merging line 38, and the rice is transported by dropping a small amount of rice from the collection tank 36. Therefore, the merging line 38 may use a pipe arranged at a vertical angle or a nearly vertical angle. The merging line 38 is provided with a rotary valve 54 at the end on the feed side, and merges with the transport line 14 for pressure-milling the rice from the rice mill to the measuring tank 22. The rotary valve 54 supplies a small amount of rice to the transport line 14 while preventing backflow of air from the transport line 14 to the merge line 38. The opening / closing of the rotary valve 54 is controlled by the control unit 26, and the timing for feeding a small amount of rice to the transport line 14 is achieved.
[0014]
With the above configuration, a path for collecting the small amount of rice that is generated after the bag packing process in the packer 30 and returning it to the transport line 14 is established. Hereinafter, the operation of the scrap rice collecting device 32 according to the present embodiment will be described.
[0015]
End rice generated after the bagging process is dropped from the packer 30 to the hopper 40. This may be performed manually by an operator or automatically performed by attaching the connecting pipe 42 provided on the packer 30 to the drop of the packer 30. The small amount of rice dropped into the hopper 40 is introduced into the suction line 34 by opening a valve 48 controlled by the control unit 26 according to the availability of the suction line 34. Since a suction negative pressure is constantly generated in the suction line 34, the small amount of rice introduced here is suction-transported, passes through the separator 50, and is stored in the collection tank 36. Since the amount of the end rice generated is about 20 kg at the maximum in a single bagging process, the time required for transportation through the suction line 34 is about 10 to 20 seconds. These pieces of rice are generated one after another from the plurality of packers 30 and are sucked and transported when the suction line 34 is idle.
[0016]
In terms of quality control, it is not preferable to mix various varieties of small amounts of rice. Therefore, the small amount of rice once stored in the separator 50 is immediately sent to the merging line 38 as soon as the recovery tank 36 arranged at the subsequent stage becomes empty. Then, when the separator 50 becomes empty, a small amount of rice is sucked and transported from another packer 30, stored in the separator 50, and stored in the empty recovery tank 36. In the present embodiment, four recovery tanks 36 are provided, and selection of which recovery tank 36 stores the end rice is controlled by the control unit 26 and is appropriately distributed according to the situation. When all of the collecting tanks 36 are used, the generated end rice is kept in the hopper 40, and the collection of the end rice is temporarily interrupted to avoid mixing varieties. Similarly, when the end rice is a blend of different varieties, the blend is regarded as one varieties and collected. In the case of a product that does not place importance on the variety, it is also possible to store each amount of rice of different types in the same collection tank 36.
[0017]
The small amount of rice stored in the recovery tank 36 is introduced into the merge line 38 when the mouth of the recovery tank 36 is opened, and is introduced into the transport line 14 via a rotary valve. The transport line 14 is a route for transporting the milled rice from the milling machine to the milling tank 16 and is pumped by air pressure. For example, even when milled rice of the same varieties is pumped, during the milling of the milled rice. We don't combine small pieces of rice. At the time when the transportation of the milled rice is completed and the transportation line 14 is vacant, the mouth of the merging line 38 is opened to introduce a small amount of rice into the transportation line 14. Thereafter, the fraction rice is sent to the rice polishing tank 16. At this time, if any one of the plurality of milled rice tanks 16 has milled rice of the same variety as the milled rice in the milled rice tank 16A, the milled rice is introduced into the milled rice tank 16. Otherwise, to avoid mixing of rice varieties, the fractional rice is introduced into the empty rice tank 16B. In addition, when different types of rice are stored in any of the rice polishing tanks 16, the rice polishing tank 16 is vacant or the rice polishing of the same type is refrained from introducing small amounts of rice into the transport line 14. Are kept in the recovery tank 36 until they are stored in the rice polishing tank 16 or in any state. In the case where rice as a mixture of various varieties is to be shipped as a product, a mixing tank for mixing is separately provided in the rice polishing tank 16, and a small amount of rice is introduced into the mixing tank regardless of the variety. It is also possible.
[0018]
The fractional rice is generated one after another from a large number of packers 30 provided in the equipment of the rice polishing system 10, but by providing the fractional rice collecting device 32 as described above, the fractional rice is regenerated. The operation of returning to the weighing / bagging process can be performed without depending on human resources. Therefore, not only the burden on the worker can be reduced, but also the time required for the collection process can be greatly reduced. For example, the time required for transportation from the hopper 40 to the collection tank 36 is at most about 20 seconds. Considering that an operator collects a small amount of rice, loads it on a cart, and transports it to the rice polishing tank 16, labor is reduced. And time has been greatly reduced.
[0019]
In addition, the above-described series of operations are all controlled by the control unit 26, and the selection of which end rice is to be introduced into which milling tank 16 and the time for introducing the rice into the suction line 34 and the transport line 14, etc. Each is managed. Therefore, the respective tanks are appropriately selected for each kind of milled rice, and the mixing of the kinds can be prevented. As a result, it is possible to surely manage the variety of the polished rice, and it is effective in preventing the varieties from being mixed.
[0020]
In the above-described embodiment, all of the end rice is returned to the rice polishing tank 16 via the separator 50, the recovery tank 36, the merging line 38, the rotary valve 54, and the transport line 14. However, the present invention is not limited to this, and a mechanism 60 (two-dot chain line portion in FIG. 1) for directly dropping the scrap rice from the separator 50 into the rice polishing tank 16 is separately installed, and at least a part of the scrap rice is removed. This mechanism may be used to return the rice to the rice polishing tank 16 directly. The use of such a mechanism 60 makes it possible to operate the rice transport system more efficiently.
[0021]
【The invention's effect】
According to the above configuration, it is possible to collect the small amount of rice generated in the rice transport system and return it to the previous stage of the bag packing process. The use state of each line or each tank related to the return of the fine rice is managed by the control unit, and the fine rice is introduced according to the situation. Therefore, it is possible to prevent the milled rice transported from the milling machine from being mixed with the fractional rice introduced from the collection line, or from mixing the fractional rice of different varieties on the collection line. Therefore, it is possible to avoid a decrease in quality in terms of product type management. In addition, when small pieces of rice are introduced into the collection line, appropriate time and each tank is selected by the control unit and automatically returned to the transport line, so that the labor required for workers to collect small pieces of rice is increased. Can be reduced. At the same time, since the scrap rice is promptly collected on the collection line, the collection process can be shortened in terms of time, and the scrap rice recovery process is improved.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a fractional rice collecting device according to the present embodiment.
FIG. 2 is a flowchart of the fractional rice collecting device and the rice polishing transport system according to the embodiment.
[Explanation of symbols]
10 Rice polishing transport system, 12 Cushion tank, 14, 20 Transport line, 16 Rice polishing tank, 18, 19, 50 Separator, 22 Measuring tank, 24 , 48 valves, 26 control unit, 28 sorting machine, 30 packers, 32 collection devices, 34 suction lines, 36 collection tanks, 38 ... Junction line, 40 hopper, 42 connecting pipe, 44 switch, 46 discharge pipe, 52 suction fan, 54 rotary valve.

Claims (4)

This is a method for recovering the scrap rice generated in the bagging process, out of the milled rice that is dispensed from the milling machine and is bagged through the transport line and the milling tank, wherein the scrap rice is collected for each variety. A method of recovering the fractional rice which is temporarily stored and collected and returned to the rice polishing tank for each variety via the transport line. A suction line for transporting the small amount of rice generated by the bagging means to a transporting line for transporting rice for each variety from the rice milling machine to the bagging processing means and a rice transporting system having a rice polishing tank. A collection line including a plurality of recovery tanks for temporarily storing the transported rice fragments for each variety and a merging line for introducing the rice fragments from the recovery tank to the transport line is provided and transported to the recovery line. A collecting unit for controlling the returned rice from the transport line to the rice milling tank for each variety, wherein the control unit controls the returned rice. 3. The apparatus according to claim 2, wherein the suction line is provided with suction means for applying a suction negative pressure for sucking and transporting the piece of rice. 4. The said recovery tank and the said rice milling tank are suitably selected by the said control part, and a piece of rice is stored for every kind, The recovery apparatus of the piece of rice of Claim 2 or 3 characterized by the above-mentioned.

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