JP2016073208A - Moisture measuring device for laver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a moisture measuring device for laver which can measure an average water content of a plurality of sheets of dried laver produced by a laver production machine.SOLUTION: A moisture measuring device (1) for laver for measuring a water content of sheet-like dried laver (20) produced by drying a laver material molded into a sheet by using a laver producing machine (2) is configured so that a plurality of sheets of dried laver (20) are transferred by a pair of top and bottom transfer rollers (18, 19), a voltage is applied on electrode layers (25, 26) formed on surfaces of the transfer rollers (18. 19), and an average water content of the plurality of sheets of dried laver (20) is measured based on a current carrying quantity which flows between the top and bottom electrode layers (25, 26). Further, the moisture measuring device is configured so that a voltage is applied on the electrode layers (25, 26) formed on the surfaces of the transfer rollers (18, 19) only when the dried laver (20) is being transferred by the transfer rollers (18, 19).SELECTED DRAWING: Figure 2

Description

  The present invention relates to a moisture measuring device for laver for measuring the moisture content of a sheet-like dried laver produced by drying a laver dough made using a laver maker.

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

  In this laver production machine, the laver is transported with the transport device, the laver dough is made into the laver with the paper making device, the dried laver is dried with the drying device, and dried from the laver with the peeling device. Peel nori. The dried laver peeled by the peeling device is measured one by one with a moisture measuring device for laver, and the drying device is controlled based on the measured moisture content.

  The conventional laver moisture measuring device transfers a plurality of dried laver with a pair of upper and lower transfer rollers, applies a voltage to the electrode layer formed on the surface of the transfer roller, and flows between the upper and lower electrode layers. Based on the amount of energization, the moisture content of one dry laver was measured (for example, refer to Patent Document 1).

Utility Model Registration No. 3167315

  However, since the dried laver has a porous sheet shape, a voltage is applied between a pair of transfer rollers that transfer the dried laver as in the above-described conventional laver moisture measuring device. When measuring the moisture content of the laver, it will be strongly affected by porous dry laver and water droplets adhering to the surface of the transfer roller, resulting in a large variation in the measured moisture content and drying. There was a risk that it would be difficult to control the apparatus stably.

  Therefore, in the present invention according to claim 1, in a water measuring device for laver for measuring the moisture content of a sheet-like dried laver produced by drying a laver dough made using a laver maker, Transfer multiple dried laver with a pair of transfer rollers, apply voltage to the electrode layer formed on the surface of the transfer roller, and average the multiple dried laver based on the amount of current flowing between the upper and lower electrode layers It was decided to configure to measure the moisture content.

  Further, in the present invention according to claim 2, in the present invention according to claim 1, a voltage is applied to the electrode layer formed on the surface of the transfer roller only while the dried laver is transferred by the transfer roller. Decided to configure.

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

  That is, in the present invention, in a moisture measuring device for laver for measuring the moisture content of a sheet-like dried laver produced by drying a laver dough made using a laver maker, a pair of upper and lower transfer rollers While transferring multiple sheets of dried laver, apply a voltage to the electrode layer formed on the surface of the transfer roller, and measure the average moisture content of the plurality of dried laver based on the amount of current flowing between the upper and lower electrode layers. Therefore, even if there is a variation in the moisture content of the dried laver for each sheet, the laver making machine can be controlled with the average moisture content of the dried laver. The machine can be controlled stably.

  In particular, when a voltage is applied to the electrode layer formed on the surface of the transfer roller only while the dried laver is being transferred by the transfer roller, water drops or the like adhere to the surface of the transfer roller. It is possible to prevent an inadvertent flow of current between the surfaces, and it is possible to prevent failure of the seaweed moisture measuring device and measurement errors.

Side surface explanatory drawing which shows a laver production machine. Side surface explanatory drawing which shows the moisture measuring apparatus for laver. The front explanatory drawing.

  Hereinafter, a specific configuration of the seaweed moisture measuring device according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a seaweed moisture measuring device 1 is provided in a laver making machine 2 for producing a sheet-like dried laver from a laver dough.

  The laver making machine 2 is provided with a conveying device 3 for conveying the laver rice cake inside. The transport device 3 transports a reed frame in which a plurality of laver reeds arranged side by side are detachably attached, and is provided on an endless front transport mechanism 5 and a rear case 6 provided on the front case 4. The endless rear transport mechanism 7 is driven in conjunction with the endless transport mechanism 7.

  The transport device 3 transports the cocoon frame supporting the plurality of laver cocoons arranged on the left and right sides by the front transport mechanism 5 on the upper side of the front transport mechanism 5 from the front to the rear, and then moves the cocoon frame to the front transport mechanism. 5 is transferred from the upper rear end of the rear transfer mechanism 7 to the upper front end of the rear transfer mechanism 7, and the rear frame is transferred from the front to the rear on the upper side of the rear transfer mechanism 7 and then rearward on the lower side of the rear transfer mechanism 7. From the lower front end of the rear transport mechanism 7 to the lower rear end of the front transport mechanism 5, and the rear frame is moved from the rear to the front on the lower side of the front transport mechanism 5. It is intended to be transported towards. 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 2 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, and these conveying apparatuses. 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.

  The paper making apparatus 8 is arranged on the upper front side of the front skeleton 4 and supplies a predetermined amount of nori dough mixed with raw nori and water in a predetermined ratio to the upper surface of each nori pod, The paper is made into a predetermined shape.

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

  The drying device 10 has a dryer 14 disposed in the lower part inside the rear housing 6 and forcibly dries the laver dough produced on each laver cocoon by the heat of the hot air generated by the dryer 14. I try to use dry seaweed. The drying device 10 controls the dryer 14 with the control device 13 based on the average moisture content measured by the laver moisture measuring device 1 to be described later, and supplies hot air having a predetermined temperature and a predetermined humidity from the dryer 14. Like to do.

  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.

  The nori seaweed washing device 12 is arranged on the lower front side of the front side housing 4 and cleans the upper and lower surfaces of each nori seaweed.

  The laver making machine 2 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. 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 transport device 3, the paper making device 8, the dewatering device 9, the drying device 10, the peeling device 11, and the laver washing machine 12 are controlled by the control device 13 according to the program recorded on the recording medium 15.

  In addition, the laver maker 2 connects the laver moisture measuring device 1 for measuring the ratio (moisture content) of moisture contained in the plurality of dried laver to the peeling device 11, and the laver moisture measuring device 1 is connected to the laver moisture measuring device 1. It is connected to the control device 13. Thereby, the laver maker 2 measures the average moisture content of the plurality of dried laver peeled and collected by the peeling device 11 from each laver cocoon, and the average moisture content of the dried laver is predetermined. When the temperature is higher than the range, the control device 13 controls the temperature of the hot air blown from the dryer 14 of the drying device 10 to be high (humidity is low), while the average moisture content of the dried laver is predetermined. When the temperature is lower than the range, the control device 13 controls the temperature of the hot air blown from the dryer 14 of the drying device 10 to be low (humidity is high).

  As shown in FIGS. 2 and 3, the seaweed moisture measuring device 1 has a pair of front and rear conveyors 17 and 17 disposed inside a casing 16, and a pair of upper and lower transfer rollers 18 between the front and rear conveyors 17 and 17. , 19 and the conveyors 17 and 17 and the transfer rollers 18 and 19 convey the sheet-like dried laver 20 to be measured one by one. The upper transfer roller 18 has a rotating shaft 21 attached to the casing 16 so as to be rotatable. The lower transfer roller 19 has a rotating shaft 22 rotatably attached to the casing 16 and a driving motor 23 connected to the rotating shaft 22. Rotary encoders 24 and 24 are connected to the rotating shafts 21 and 22 of the upper and lower transfer rollers 18 and 19, respectively. The drive motor 23 and the rotary encoders 24, 24 are connected to the control device 13.

  And when the laver moisture measuring device 1 forcibly rotates the lower transfer roller 19 with the drive motor 23, the lower transfer roller 19 is transferred only when the dried laver 20 exists between the upper and lower transfer rollers 18, 19. Power is transmitted from the roller 19 to the upper transfer roller 18 via the dried seaweed 20, and the upper transfer roller 18 rotates. At that time, the rotation amounts of the upper and lower transfer rollers 18 and 19 are measured by the rotary encoders 24 and 24. As a result, when the contact between the dried nori 20 and the upper and lower transfer rollers 18 and 19 is not sufficient and the accurate moisture content of the dried nori 20 cannot be measured, the rotation amount of the upper transfer roller 18 is significantly reduced or Since the rotation amount of the upper transfer roller 18 is significantly smaller than the rotation amount of the upper transfer roller 19, it can be determined from the rotation amounts of the upper and lower transfer rollers 18, 19.

  Further, the seaweed moisture measuring device 1 forms electrode layers 25 and 26 made of a conductive material on the outer peripheral surfaces of the transfer rollers 18 and 19, and electrically connects brush-like electrode terminals 27 and 28 to the electrode layers 25 and 26. Connected (contacted). The lower electrode terminal 28 is connected to the positive electrode of the DC power source 30 via the open / close switch 29. The negative electrode of the power supply 30 is connected to the ground terminal 31. The upper electrode terminal 27 is connected to the positive electrode terminal 33 via the open / close switch 32. A capacitor (capacitor) 34 and an open / close switch 35 are connected in parallel between the positive terminal 33 and the ground terminal 31, and an AD converter 37 is connected between the positive terminal 33 and the positive terminal 33 via the open / close switch 36. Yes. A controller 13 is connected to the AD converter 37.

  The seaweed moisture measuring device 1 closes the open / close switches 29 and 32 (energized state), opens the open / close switches 35 and 36 (non-energized state), and applies a voltage between the upper and lower transfer rollers 18 and 19. Then, a current flows through the dried seaweed 20 and is stored in the battery 34. Thereafter, by closing the open / close switch 36 (energized state), the energization amount stored in the capacitor 34 is converted by the AD converter 37 and sent to the control device 13. Thereafter, the charge stored in the battery 34 is removed (reset) by closing the open / close switch 35 (energized state).

  In addition, the seaweed moisture measuring device 1 has a detection sensor 38 for detecting the presence or absence of the dry laver 20 to be measured on the front side (upstream side) of the transfer rollers 18 and 19, and the control sensor 38 is controlled by the control device 38. Connected to 13.

  And the moisture measuring device 1 for laver detects the front end part of the dried laver 20 to be measured by the detection sensor 38, and then measures the moisture content with the transfer rollers 18 and 19 for a predetermined time after the elapse of a predetermined time. Thus, the moisture content in a predetermined range of the dried laver 20 is measured. In addition, a detection sensor is arranged before and after the transfer rollers 18 and 19, and after the dried nori 20 is detected (or detected) by the front detection sensor, the moisture content measurement is started and dried by the rear detection sensor. The moisture content in a predetermined range of the dried nori 20 may be measured by stopping the moisture content measurement after (or when) detecting the nori 20.

  The seaweed moisture measuring device 1 is configured as described above, and measures the average moisture content of a plurality of dried laver 20 as described below.

  First, when the first dry laver 20 is detected by the detection sensor 38, a predetermined time after detection (the time required for the dry laver 20 to be sent between the transfer rollers 18, 19 after being detected by the detection sensor 38) Only after the elapse of time, the open / close switches 29 and 32 are closed and the voltage is applied between the upper and lower transfer rollers 18 and 19 for a predetermined time (the time required for one piece of dried laver 20 to pass through the transfer rollers 18 and 19). Apply.

  This is repeated for a predetermined number of dried nori 20. The number of the dried seaweed 20 is measured by the detection sensor 38. Thereafter, the open / close switch 36 is closed, and the total energization amount stored in the capacitor 34 by passing a predetermined number of dried laver 20 is converted by the AD converter 37 and sent to the control device 13. Based on this, the control device 13 calculates the average moisture content. For example, the total energization amount is divided by a predetermined number, and the average moisture content is obtained from a correspondence table between the energization amount and the moisture content obtained in advance.

  As described above, the seaweed moisture measuring device 1 transfers a plurality of dried laver 20 with a pair of upper and lower transfer rollers 18 and 19, and the electrode layers 25 and 25 formed on the surfaces of the transfer rollers 18 and 19. A voltage is applied to 26, and the average moisture content of the plurality of dried laver 20 is measured based on the amount of current flowing between the upper and lower electrode layers 25, 26.

  Therefore, in the water measuring device 1 for laver having the above-described configuration, the laver maker 2 is controlled with the average moisture content of the plurality of dried laver 20 even if the moisture content of each dried laver 20 varies. And the seaweed making machine 2 can be controlled stably.

  The laver moisture measuring device 1 is configured to apply a voltage to the electrode layers 25 and 26 formed on the surfaces of the transfer rollers 18 and 19 only while the dried laver 20 is transferred by the transfer rollers 18 and 19. doing.

  Therefore, in the laver moisture measuring device 1 having the above-described configuration, it is possible to prevent water droplets or the like from adhering to the surfaces of the transfer rollers 18 and 19 and inadvertently flowing current between the surfaces of the transfer rollers 18 and 19. It is possible to prevent failure of the seaweed moisture measuring apparatus 1 and measurement errors.

DESCRIPTION OF SYMBOLS 1 Moisture measuring device for laver 2 Seaweed making machine 3 Conveying device 4 Front housing 5 Front conveying mechanism 6 Rear housing 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 Dryer
15 Recording medium 16 Casing
17 Conveyor 18,19 Transfer roller
20 Dried seaweed 21 Rotating axis
22 Rotating shaft 23 Drive motor
24 Rotary encoder 25, 26 Electrode layer
27,28 Electrode terminal 29 Open / close switch
30 Power supply 31 Ground terminal
32 Open / close switch 33 Positive terminal
34 Battery 35 Open / close switch
36 Open / close switch 37 AD converter
38 Detection sensor

Claims (2)

In the seaweed moisture measuring device for measuring the moisture content of the sheet-like dried laver produced by drying the laver dough made using a laver maker,
A pair of upper and lower transfer rollers transfers a plurality of dried laver, and a voltage is applied to the electrode layer formed on the surface of the transfer roller, and a plurality of dried laver is formed based on the amount of current flowing between the upper and lower electrode layers. A water measuring device for seaweed, which is configured to measure an average moisture content.   2. The seaweed moisture measuring device according to claim 1, wherein a voltage is applied to an electrode layer formed on the surface of the transfer roller only while the dried laver is being transferred by the transfer roller.

Images