JP2747347B2 - Nori dehydration method and apparatus - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method and an apparatus for dehydrating laver in an automatic laver dryer.

`` Conventional technology '' The conventional laver dehydration method arranges a sponge plate supported by a pressing plate above and below a laver paper making cage at a stop position, and reciprocates the sponge plate in the opposite direction toward the cage, Sponge board is to perform a lifting cycle of pressing and dehydrating the paper laver on the pens with a sponge board, and the sponge boards are compressed and restored to each other by the close proximity of the upper and lower pressing plates during the stoppage time of the pens, and compressed. Sometimes, the water in the paper laver is drained, and at the time of restoration (expansion), an operation of absorbing the residual water in the seaweed is performed to dehydrate the water in the seaweed.

However, since the elevating cycle operation is driven by a constant-speed AC motor and the rotation angular velocity of the drive shaft is constant, it is difficult to maintain the full-time pressing process of the laver paper pens (endless chain), and In this process, the speed at which the upper and lower pressing plates approach and separate from each other (the pressing process cycle speed) cannot be suppressed slowly.

Therefore, the sponge plate is compressed and restored (compressed and expanded) promptly, so that the water in the paper laver on the laver is not sufficiently discharged, the residual water content is large, and the sponge plate is restored (expanded). Nori leaves on the surface of the paper laver float due to the absorption of residual moisture, and there is a problem that the smoothness of the surface is lost and the laver is apt to become glossy or glossy laver and the quality is remarkably deteriorated. Since the pressure step is not sufficient, there is a problem that the residual moisture is large and the drying efficiency is low.

"Problems to be Solved by the Invention" It is an object of the present invention to obtain laver having good surface quality with high gloss and gloss while maintaining smoothness of laver surface and high drying efficiency.

Means for Solving the Problems In order to achieve the above object, the present invention provides an endless chain that rotates intermittently at equal intervals on a machine frame, and places a laver cage support frame on the chain at equal intervals. A lifting sponge plate for laver dewatering and a pressing plate for the sponge plate are provided above and below the stop position of the support frame, and the sponge is moved closer to and away from the sponge plate while the chain is stopped. In a dehydrator that presses the paper-made laver with a plate to dehydrate the water in the laver and repeats a cycle in which the sponge plate separates from the upper and lower surfaces of the laver during the rotation time of the chain. The laminating dehydration method according to the invention, comprising the pinching step and the releasing step, wherein the cycle speed of the pinching step is controlled to be lower than the cycle speed of the releasing step.
Nori, the laminating dewatering device provided with a cycle speed control device in which the pinching step has an opening angle of about 120 degrees The cycle speed control device is provided with a speed change inverter connected to a cycle drive AC motor and a controller for the inverter is provided. The laver dewatering device according to the second aspect of the present invention comprises:

[Operation] Therefore, the controller 6 is operated to operate the shifting inverter 5
Thus, the cycle speed in the pinching step 1 (opening angle in the cycle of 120 degrees) in the above cycle can be adjusted to be lower than the cycle speed in the releasing step 2 (opening angle in the cycle of 240 degrees), and the endless chain 7 ( From the time immediately after the laver support frame 8) stops to immediately before the rotation, the sponge plates 9 and 9 make the paper laver 10
Squeezed to dehydrate the water content. This dehydration is shown in Fig. 4 (a).
Separation process 2 between laver 10 and sponge plate 9 in the figure (just before pinching)
From (b) to the pressing step 1 (immediately after the pressing), and further, as shown in (c), the pressing plates 11, 11 are brought close to each other to compress the sponge plates 9, 9, and As a result, the water in the laver 10 is discharged. The residual water in the laver 10 is sucked into the sponge plates 9 and 9 by a suction effect from compression to restoration (expansion) of the sponge plates 9 and 9 and is shown in FIG.
The residual moisture is sufficiently absorbed before the state of separation shown in the figure is reached. The approaching / separating operation of the pressing plates 11, 11 is the pressing step 1 in the above cycle, and is slower than the cycle speed of the releasing step 2, so that the stop time is sufficiently used in the pressing step 1, and the pressing plates 11, 11 Is performed slowly, the water content in the laver 10 is also slowly squeezed out, and the residual water is slowly absorbed into the sponge plates 9, 9.

"Embodiment" Two endless chains 7, 7 are wound around a machine frame 12, and the chains 7, 7 are rotated at equal intervals by a constant-speed reduction motor via an electromagnetic clutch 13, so-called intermittent rotation. Endless chains 7, 7 are formed. Nori cage support frames 8, 8 are placed on the upper transition portions of the chains 7, 7 at equal intervals as described above, and the support frames 8 intermittently move with the chains 7, 7. Above and below the stop position of the support frame 8, elevating sponge plates 9, 9 for paper laver dewatering are arranged, and the sponge plates 9, 9 are supported by pressing plates 11, 11, respectively. Then, during the stop time of the chains 7, 7, the pressing plate
The sponge plates 9 and 9 together with the laver cage 14 together with the laver 10 make the seaweed 10 on the cage 14 by bringing the 11 and 11 closer to each other from the position of FIG. To dehydrate the water in the laver 10. Then, the sponge plates 9 and 9 are separated from each other as shown in FIG. 4 (a), and the chains 7, 7 and the support frame 8 move (rotate) at the same intervals, and the next support frame 8 becomes the sponge plate. During the rotation time of the chains 7, 7 before stopping between 9, 9, the sponge plates 9, 9 separate from the upper and lower surfaces of the laver 10 and reciprocate up and down. A cycle is formed by the pressure step 1 and the cycle is repeated to form a laver dehydrator. This cycle is driven by the deceleration AC motor 4. In the pinching step 1, as shown in FIG. 3, the speed change inverter 5 (VVVF inverter) is operated by the limit switch 16 closed by the opening angle 120 degree cam 15. And the inverter 5 controls the AC motor 4
The rotation speed of the rotation speed is controlled by the controller 6, and the inverter 5 and the controller 6 constitute the cycle speed control device 3 of the pinching step 1. The upper and lower pressing plates 11, 11 are provided on lifting sliders 17, 17, respectively.
The upper slider 17 is connected to a crank 19 by a connecting rod 20, and the lower slider 17 is raised and lowered by an eccentric cam 22 provided on a crankshaft 21. A chain 26 is wound between a reduction sprocket 23 provided on the intermediate shaft 24 and a sprocket 25 provided on the intermediate shaft 24, and a sprocket 28 provided on the cam shaft 27 of the cam 15 and an interlocking sprocket 29 provided on the intermediate shaft 24. To Chain 30
And a sprocket 32 provided on the output shaft 31 of the deceleration AC motor 4 and a sprocket 33 provided on the cam shaft 27.
The above-described cycle can be repeated by the AC motor 4 with the drive chain 34 being hung between them. Of course, the limit switch 16 is opened by the cam 15, and in the open state, the AC motor 4 is rapidly rotated at the rated speed, whereby the detachment step 1 during the equal rotation of the chains 7, 7 is performed. In the figure, reference numeral 35 denotes the intermediate shaft 24.
Nori paper making machine that is linked by the AC motor 4 via the.

[Effect of the Invention] Since the present invention is based on the above-described method and apparatus, the cycle speed of the pinching step 1 by the upper and lower sponge plates 9 and 9 can be performed very slowly because the stop time of the above-mentioned paper laver 10 can be performed very slowly. The moisture in 10 is sufficiently discharged, the residual moisture is significantly reduced, and the sponge plates 9 and 9 can be slowly sucked to recover the residual moisture due to the slow restoration, so that the nori leaves on the nori surface are prevented from floating and the nori surface is smooth. In addition to maintaining the property, the gloss and gloss of the surface of the laver are remarkably improved, so that the laver of good quality can be obtained. In addition, since the residual moisture is small, the drying efficiency in the next drying step can be improved.

[Brief description of the drawings]

FIG. 1 is a front view showing a laver dehydrating apparatus of the present invention, FIG. 2 is a plan view of a laver support frame, FIG. 3 is a front view of an operation cam,
FIG. 4 (a) is a detached state diagram, and FIGS. 4 (b) and (c) are pinching state diagrams. 1… Nipping process 2… Release process 3… Cycle speed control device 4… Cycle drive AC motor 5… Speed change inverter 6… Controller

Claims (3)

(57) [Claims] An endless chain that rotates intermittently at equal intervals is provided on a machine frame, and laver support frames are mounted on the chain at equal intervals, and paper laver is placed above and below a stop position of the support frame. A dewatering elevating sponge plate and a pressing plate for the sponge plate are provided, and the papermaking laver is pressed with the sponge plate by bringing the pressing plates closer to and away from each other during the stop time of the chain, thereby causing In a dehydrator that repeats a cycle in which water is dehydrated and the sponge plate is separated from the upper and lower surfaces of the laver during the rotation time of the chain, the cycle includes the pinching step and the separating step. A laver dewatering method, wherein the cycle speed of the process is controlled to be lower than the cycle speed of the separation process. 2. The laminating dewatering apparatus according to claim 1, further comprising a cycle speed control device in which the cycle is 360 degrees and the squeezing step has an opening angle of about 120 degrees. 3. The cycle speed control device is a cycle drive AC.
The laver dehydration apparatus according to claim 2, wherein a speed change inverter is connected to the motor, and a controller for the inverter is provided.