JP2015159792A - Laver production machine and control method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laver production machine capable of maintaining humidity of dried laver which is finally produced uniform, and improving a commodity value of the dried laver.SOLUTION: In a laver production machine 1 and a control method thereof, a forming device 8 for forming a laver dough on a laver drainboard along a transport path of a transport device 3 for transporting the laver drainboard, and a dry device 10 for drying the laver dough formed on the laver drainboard, are sequentially disposed, and the forming device 8 and the dry device 10 are controlled by a controller 13. The controller 13 controls so that relative humidity in the dry device 10 is maintained to a set value.

Description

  The present invention relates to a laver producing machine for producing a dried laver by drying a laver dough made into laver, and a control method therefor.

  Conventionally, a laver making machine has been used to produce dry laver having a predetermined shape from cultivated raw laver.

  This laver making machine includes a transport device for transporting the seaweed rice cake, a paper making device for making the seaweed dough into a seaweed rice cake, and a drying device for drying the seaweed dough made into the seaweed rice cake. The paper making device and the drying device are arranged in order along the transport path of the laver rice cake by the transport device.

  And in the laver making machine, after the laver dough consisting of raw laver and moisture is made into a predetermined shape on the upper surface of the laver mash with the paper making machine, the laver dough in order with the hot air from a plurality of dryers provided in the drying device Is dried forcibly to produce dried laver having a predetermined shape (see, for example, Patent Document 1).

JP 2005-27577 A

  In the conventional laver production machine, during the production of the dried laver, the dryer provided in the drying apparatus is driven so as to keep the temperature inside the drying apparatus constant.

  However, in the laver production machine, when the temperature inside the drying device is increased, the absolute humidity inside the drying device is lowered, and accordingly, the relative humidity inside the drying device is also lowered.

  Therefore, in the laver production machine, if the temperature is controlled preferentially so as to maintain the temperature inside the drying device, the humidity of the finally produced dried laver may vary, which may impair the commercial value. It was.

  In particular, in laver making machines, laver that is actually dried in the drying device after starting paper making in the paper making device or after stopping paper making in the paper making device compared to normal operation during that time. Because the number of doughs (amount) is different and the amount of moisture inside the dryer is significantly different, even if the temperature inside the dryer is preferentially controlled, the predetermined temperature can be maintained due to the influence of humidity. There was a possibility that the seaweed dough could not be dried well.

  Accordingly, in the present invention according to claim 1, a paper making device for making a laver dough into a seaweed mash along a transport path of a transport device for transporting the seaweed mash, and a seaweed dough made into a seaweed mash. In the laver production machine in which the paper making device and the drying device are controlled by the control device, the control device keeps the relative humidity inside the drying device at the set value. Decided to control.

  Further, in the present invention according to claim 2, the paper making device for making the seaweed dough into the seaweed rice cake along the carrying path of the carrying device for carrying the seaweed rice cake, and the seaweed dough made into the seaweed rice cake In the control method of the laver making machine in which the paper making device and the drying device are controlled by the control device, the control device sets the relative humidity inside the drying device to the set value. It was decided to control to hold.

  Moreover, in this invention which concerns on Claim 3, in the said invention which concerns on said Claim 2, the said control apparatus carries out the laver dough made with the paper making apparatus to a drying apparatus with a conveying apparatus, Then, The internal relative humidity was measured, and control was performed so that the relative humidity was set to the set value.

  Further, in the present invention according to claim 4, in the present invention according to claim 2, the control device is a predetermined period after the start of the operation of the paper making apparatus or / and a predetermined time after the operation of the paper making apparatus is stopped. During the period, control was made to change the set value.

  And in this invention, there exists an effect described below.

  That is, in the present invention, since the relative humidity inside the drying apparatus is controlled to be kept at the set value, the humidity of the dried laver that is finally produced can be made uniform, and the dried laver product Value can be improved.

  In particular, when the laver dough made by the paper making device is transported to the drying device by the transport device, the relative humidity inside the drying device is measured, and the relative humidity is controlled to be set to the set value. Even if the weather conditions such as the temperature and humidity of the installation location on the processing day are different, the dried state of the laver dough can be made uniform, and the quality of the dried nori can be made uniform.

  In addition, when control is made to change the set value for a predetermined period after the operation of the paper making apparatus is started or / and for a predetermined period after the operation of the paper making apparatus is stopped, Even if the number of laver dough actually dried in the dryer is different after the start of paper making or paper making is stopped, the moisture content in the dryer is significantly different. Since the internal temperature can be maintained, the laver dough can be dried well.

Side surface explanatory drawing which shows the laver making machine which concerns on this invention. Explanatory drawing which shows the change of the moisture content inside the drying apparatus during the driving | running | working of a laver production machine.

  Hereinafter, specific configurations of a laver maker and a control method thereof according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the laver making machine 1 is provided with a transport device 3 inside a casing 2.

  Here, the conveying device 3 conveys a reed frame in which a plurality of laver reeds arranged side by side are detachably attached, and includes an endless front conveying mechanism 5 and a rear casing 6 provided in the front casing 4. The endless rear-side transport mechanism 7 provided in FIG.

  This transport device 3 is configured to transport the straw frame (seaweed rice cake) from the front to the rear by the front transport mechanism 5 on the upper side of the front transport mechanism 5, and then the rear frame from the upper rear end of the front transport mechanism 5. Delivered to the upper front end of the side transport mechanism 7, transported from the front side to the rear side on the upper side of the rear side transport mechanism 7, and then transported from the rear side to the front side on the lower side of the rear side transport mechanism 7, Thereafter, the eaves frame is transferred from the lower front end portion of the rear conveyance mechanism 7 to the lower rear end portion of the front conveyance mechanism 5, and the eave frame is conveyed from the rear toward the front on the lower side of the front conveyance mechanism 5. . As a result, the transport device 3 is configured so that the front transport mechanism 5 is located at the upper front to the upper rear, the rear transport mechanism 7 from the upper front to the upper rear, the rear transport mechanism 7 from the lower rear to the lower front, and the lower front transport mechanism 5. It forms a transport path for the reed frame (nori seaweed reed) that leads from the rear to the front of the lower part.

  Moreover, the laver making machine 1 arranges the paper making apparatus 8, the dehydrating apparatus 9, the drying apparatus 10, the peeling apparatus 11, and the laver mash washing apparatus 12 in order along the conveying path of the hull frame by the conveying apparatus 3, 3. The paper making device 8, the dehydrating device 9, the drying device 10, the peeling device 11, and the laver washing device 12 are controlled by the control device 13.

  Here, the paper making apparatus 8 is disposed on the upper front side of the front casing 4 and supplies a laver dough composed of raw nori and moisture to the upper surface of each laver cocoon so that the laver dough is shaped into a predetermined shape in each laver cocoon. It is to make paper.

  The dehydrating device 9 is disposed on the upper rear side of the front casing 4 and dehydrates the laver dough by pressing a sponge or the like on the laver dough made from each laver.

  The drying device 10 forms a drying space 14 in the rear casing 6 and a dryer 15 is arranged in the lower part of the rear casing 6, and sends warm air generated by the dryer 15 to the drying space 14. The nori dough made on each nori seaweed is dried by the heat of warm air. The drying apparatus 10 includes a temperature sensor 16 that detects the temperature inside the drying space 14 and a humidity sensor 17 that detects the humidity (relative humidity) inside the drying space 14. These temperature sensor 16 and humidity sensor 17 are connected to the control device 13. The drying device 10 controls the temperature and humidity of the hot air generated by the dryer 15 with the control device 13. In addition, a plurality of temperature sensors 16 and humidity sensors 17 may be provided inside the dry space 14 and the temperature and humidity may be detected based on average values thereof.

  The peeling device 11 is disposed on the lower rear side of the front casing 4 and peels and collects the dried laver dried by the drying device 10 from each laver cocoon.

  The laver cleaning device 12 is disposed on the lower front side of the front casing 4 and cleans the upper and lower surfaces of each laver.

  The laver making machine 1 continuously conveys the laver with the conveying device 3 along the conveyance path, and makes the laver dough into a predetermined shape on the upper surface of each laver with the paper making device 8, and then The dehydration device 9 dehydrates the laver dough, then the drying device 10 forcibly dries the laver dough into dry laver, and then the delamination device 11 peels and recovers the dried laver from each laver cocoon. Thereafter, each laver is washed by the laver washing device 12 and transported to the paper making device 8 again, whereby dried laver is continuously produced from the laver dough. The conveying device 3, the paper making device 8, the dehydrating device 9, the drying device 10, the peeling device 11, and the laver washing device 12 are controlled by the control device 13 in accordance with a program recorded on the recording medium.

  In this laver maker 1, the temperature setting value and the humidity setting value inside the drying space 14 are artificially set in advance, and the actual inside of the drying space 14 detected by the temperature sensor 16 and the humidity sensor 17 is set. The dryer 15 is controlled by the control device 13 so that the temperature and humidity are always set to temperature and humidity set values (a predetermined range including the set values).

  In the laver maker 1, if the actual temperature and humidity inside the drying space 14 can be kept constant, all the laver dough made by the paper making device 8 can be uniformly dried and manufactured. The quality of dried nori can be kept constant.

  However, in the laver making machine 1, if the control device 13 controls the temperature inside the drying space 14 to increase (decrease), the actual absolute humidity inside the drying space 14 decreases (increases), and accordingly. Thus, the relative humidity inside the dry space 14 also decreases (increases).

  Therefore, in the laver maker 1, if the temperature is controlled so that the temperature is maintained at a set value rather than the actual humidity inside the drying space 14, the temperature inside the drying space 14 immediately increases due to the influence of humidity. Or, as a result, it may be difficult to maintain the actual temperature inside the drying space 14 at the set value, and the nori dough may not be dried well.

  Therefore, the laver maker 1 preferentially controls the humidity so as to hold the set value rather than the actual temperature inside the dry space 14.

  Thereby, in the said laver making machine 1, the humidity of the dry laver finally manufactured can be made uniform and the commercial value of dry laver can be improved.

  Further, in the laver making machine 1, the laver dough made by the paper making device 8 is continuously conveyed in order and transported to the drying device 10 by the transport device 3 and dried. Therefore, as shown in FIG. 2, in a predetermined period A (at the time of initial operation) after the paper making apparatus 8 starts making paper, it is only on the upstream side of the conveyance path inside the drying apparatus 10 (drying space 14). The seaweed dough is present, and the number (quantity) of the seaweed dough existing inside the drying space 14, that is, the number (quantity) of the seaweed dough to be dried by the drying apparatus 10 gradually increases. . On the other hand, in a predetermined period B (at the time of final operation) after paper making is stopped by the paper making device 8, nori dough exists only on the downstream side of the transport path inside the drying device 10 (drying space 14). In this state, the number (amount) of the laver dough existing inside the drying space 14, that is, the number (amount) of the laver dough to be dried by the drying apparatus 10 is gradually decreased. In addition, after a predetermined period A after starting the paper making with the paper making device 8, until a predetermined period B after stopping the paper making with the paper making device 8 (during normal operation), the drying device 10 (drying space 14) is in a state in which the laver dough is present in all of the transport paths inside the drying space 14, and the number of laver dough existing in the drying space 14 (ie, the amount) The number of laver dough that should be used is constant (maximum).

  As described above, in the laver maker 1, the normal operation during the initial operation after the paper making device 8 starts the paper making or the final operation after the paper making device 8 stops the paper making. Compared to the case, the number (amount) of the laver dough actually dried in the dry space 14 is different, and the amount of water in the dry space 14 is significantly different.

  Therefore, if the actual temperature and humidity inside the drying space 14 are controlled to the respective set values during the initial operation, the normal operation, and the final operation, even if it can be satisfactorily controlled during the normal operation. In the initial operation and the final operation, the temperature may not be set to the set value due to the influence of humidity.

  In that case, in the laver maker 1, during the initial operation and the final operation, control is performed using a value that is different from the artificially set value as the set value. For example, during initial operation, the amount of moisture inside the drying space 14 gradually increases, so the actual humidity inside the drying space 14 is a set value that is artificially set in relation to absolute humidity. However, since the temperature becomes lower than the set value set artificially and insufficient drying occurs, the humidity is controlled by using a value larger than the set value artificially. Also, during the final operation, the amount of moisture inside the drying space 14 gradually decreases, so if the actual humidity inside the drying space 14 is set to an artificially set value in relation to absolute humidity Since the temperature becomes higher than the artificially set value and excessive drying occurs, control is performed using a value smaller than the artificially set value as the humidity set value. Note that when the humidity setting value is set larger or smaller than the artificial setting value, the predetermined value A or B may be increased or decreased stepwise in accordance with the period. The predetermined periods A and B may be predetermined times, or a counter for measuring the number (amount) of processed laver dough is provided in the transport device 3 or the like, and the counter is a predetermined number (amount). Or until a predetermined number (amount) of laver dough is processed. Further, the above control is not limited to the case of performing the initial operation and the final operation, but may be performed only during the initial operation or only during the final operation.

  As described above, in the laver maker 1, the set value used by the control device 13 in the predetermined period A after the operation of the paper making apparatus 8 is started and / or in the predetermined period B after the operation of the paper making apparatus 8 is stopped. When control is made to change (increase or decrease) from a preset value artificially set in advance, after the paper making apparatus 8 starts the paper making or after the paper making is stopped, it is actually inside the drying apparatus 10. Even if the number (quantity) of the dried laver dough is different and the moisture content inside the drying device 10 is significantly different, the temperature inside the drying device 10 can be maintained. It can be done well.

  Moreover, in the said laver production machine 1, the dry state of the dried laver produced according to weather conditions, such as the temperature and humidity of the installation place on a processing day, is affected, and it may be unable to produce a uniform dried laver.

  In that case, in the laver making machine 1, after the laver dough made by the paper making device 8 is transported to the drying device 10 by the transport device 3, the relative humidity inside the drying space 14 is measured using the humidity sensor 17. The relative humidity is measured and used as a set value by the control device 13, and the subsequent control is performed. Thereby, the dry state of the dried seaweed manufactured after that can be made uniform. In addition, when using the humidity measured by the humidity sensor 17 in place of the set value set artificially in advance by the control device 13, it is more stable to use the humidity measured by the humidity sensor 17 during the normal operation. Thus, the drying can be made uniform.

  As described above, in the laver making machine 1, after the laver dough made by the paper making device 8 is conveyed to the drying device 10 by the conveying device 3 (preferably during normal operation), When the humidity is measured and the relative humidity is controlled to be set to the setting value used by the control device 13, even if the weather conditions such as the temperature and humidity of the installation location on the processing day are different, The dried state can be made uniform, and the quality of the dried laver can be made uniform.

DESCRIPTION OF SYMBOLS 1 Seaweed manufacturing machine 2 Casing 3 Conveying device 4 Front casing 5 Front conveying mechanism 6 Rear casing 7 Rear conveying mechanism 8 Paper making device 9 Dehydrating device 10 Drying device
11 Peeling device 12 Nori seaweed washing device
13 Controller 14 Drying space
15 Dryer 16 Temperature sensor
17 Humidity sensor A, B Predetermined period

Accordingly, in the present invention according to claim 1, a paper making device for making a laver dough into a seaweed mash along a transport path of a transport device for transporting the seaweed mash, and a seaweed dough made into a seaweed mash. In the laver production machine that controls the paper making device and the drying device with the control device, the control device has a laver dough in all the conveyance paths inside the drying device. During normal operation, the relative humidity inside the drying device is controlled to be kept at a set value, and the initial operation when the nori dough exists only on the upstream side of the conveyance path inside the drying device or the drying device During the final operation in which the seaweed dough is present only on the downstream side of the internal conveyance path, control was made to change the set value .

Further, in the present invention according to claim 2, the paper making device for making the seaweed dough into the seaweed rice cake along the carrying path of the carrying device for carrying the seaweed rice cake, and the seaweed dough made into the seaweed rice cake In the control method of the laver making machine in which the paper making device and the drying device are controlled by the control device, the control device is arranged in the entire transport path inside the drying device. During normal operation where dough is present , control is performed so that the relative humidity inside the drying device is maintained at a set value, and during initial operation when laver dough exists only on the upstream side of the conveyance path inside the drying device. Alternatively, during the final operation in which the laver dough is present only on the downstream side of the transport path inside the drying apparatus, control is performed so as to change the set value .

Further, in the present invention according to claim 3, in the present invention according to claim 2, the control device controls to change the set value to a large value during initial operation .

Further, in the present invention according to claim 4, in the present invention according to claim 2, the control device controls to change the set value to a small value during the final operation .

Claims (4)

A paper making device for making the seaweed dough into a seaweed rice cake and a drying device for drying the seaweed dough made in the seaweed rice cake are arranged in order along the transfer path of the transfer device for carrying the seaweed rice cake. In addition, in the laver making machine that controls the paper making device and the drying device with a control device,
The control device controls the relative humidity inside the drying device to be kept at a set value. A paper making device for making the seaweed dough into a seaweed rice cake and a drying device for drying the seaweed dough made in the seaweed rice cake are arranged in order along the transfer path of the transfer device for carrying the seaweed rice cake. In addition, in the control method of the laver production machine that controls the paper making device and the drying device with the control device,
The control device controls the laver making machine to control the relative humidity inside the drying device to be kept at a set value.   The control device measures the relative humidity inside the drying device after the laver dough made by the paper making device is transported to the drying device by the transport device, and controls the relative humidity to be set to the set value. The method for controlling a laver making machine according to claim 2, wherein:   3. The control device according to claim 2, wherein the control device performs control so as to change the set value for a predetermined period after the operation of the paper making apparatus is started and / or for a predetermined period after the operation of the paper making apparatus is stopped. The control method of the described laver making machine.

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