JP2003169637A - Heater for sheet laver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve flatness of sheet laver by using heating by a heater. <P>SOLUTION: When a clamping and pressing belt 8 which is made to face to a mesh carrying belt 3 fitted to a lower frame 2, driven at the same speed as that of the carrying belt 3 and made of mesh is fitted to an upper frame 7, the upper frame 7 can be lifted and lowered by engagement between a rack 5 and a pinion 6 and sheet lever having low flatness is heated, the clamping and pressing belt 8 is lowered and the sheet laver is transported while being clamped and pressed between the clamping and pressing belt and the carrying belt 3. Consequently, the sheet laver having poor flatness can selectively be corrected. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating device used for baking and drying plate laver.

[0002]

2. Description of the Related Art Plate seaweed produced by straining raw seaweed has a part having a poor flatness due to waviness and twist. Since such plate laver with poor flatness has a reduced commercial value, it is desired to correct the flatness before it becomes a product. In addition, laver laver with poor flatness is easily caught and damaged in a process such as packaging, which causes a decrease in yield.

On the other hand, the plate laver made from raw laver is often baked or dried before being made into a product. For baking and drying the plate laver, a heating device is used that heats the plate laver with a heater such as an infrared heater from the upper and lower sides while conveying the plate laver with a conveyor belt formed of a mesh. Plate laver with poor flatness may burn when it comes into contact with the upper heater of this heating device.

[0004]

A method of pinching the plate laver with a flat plate is considered as a means for correcting the flatness of the plate laver, but since the plate laver is thin, it is almost permanently deformed even if it is pinched at room temperature. When the clamping pressure is released, the shape returns to its original shape, and the corrective effect is not obtained.

However, when the plate laver is heated, the water content decreases and the plate laver softens, so that permanent deformation tends to occur. Therefore, it can be expected that the flatness can be corrected by pressing the plate laver when heated by the heating device described above.

Therefore, an object of the present invention is to correct the flatness of plate laver using heating by a heating device.

[0007]

In order to solve the above-mentioned problems, the present invention forms an endless conveyor belt wound around a driving roller and driven by a mesh and conveyed on the conveyor belt. In a plate seaweed heating device in which heaters for heating plate seaweed from both upper and lower sides are arranged, an endless clamping pressure that is faced above the conveyor belt and is wound around a drive roller and driven at a constant speed with the conveyor belt. A structure in which a belt is arranged, and the pinching belt is formed of a mesh to move up and down, and when the pinching belt is lowered, the plate laver is conveyed while pinching the seaweed with the conveyor belt. Is adopted.

That is, a pinching belt formed of a mesh that is driven at a constant speed is arranged so as to face the mesh conveyor belt of the heating device. When heating the bad seaweed, it was possible to selectively correct the seaweed with poor flatness by lowering the pinching belt and carrying the seaweed while pinching the seaweed with the conveyor belt.

The pinching belt is made to descend only when the flatness of the plate laver is poor. The pinching pressure by the pinching belt has a low probability but may damage the plate laver, so that it is necessary to correct it. This is because it is preferable to transport plate laver with good flatness without clamping pressure as in the past. Further, the reason why the pinching belt is formed of a mesh is that it does not hinder the heating of the plate seaweed by the heaters arranged on the back side thereof and releases the moisture of the plate seaweed, like the conveyor belt. The pinching belt also has an effect of preventing plate laver with poor flatness from burning due to contact with the upper heater.

Each drive roller for driving the conveyor belt and the pressure belt is connected to the rotary shaft of the drive source by the same transmission chain or transmission belt, and the transmission changes as the pressure belt moves up and down. By providing a means for adjusting the tension of the chain or the transmission belt, even if the clamping belt is moved up and down, the drive source of the conveyor belt and the clamping belt can be shared, the number of drive sources installed can be reduced, and both belts can be installed. Speed adjustment can be eliminated.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 and 2, in this plate laver heating device, an endless conveyor belt 3 formed of a mesh is provided in a longitudinal direction of a lower frame 2 attached to a gantry 1 with a driving roller 4a and a driven roller 4b.
The endless clamping belt 8 also made of mesh is driven in the longitudinal direction of the upper frame 7 which is wound around and attached to the lower frame 2 and is vertically movable by the engagement of the rack 5 and the pinion 6 above the lower frame 2. It is wound around and attached to the roller 9a and the driven roller 9b. In addition, in the longitudinal direction of each of the frames 2 and 7, the infrared heater 10 is provided on the back side of the mesh conveyor belt 3 and the pinching belt 8.
Are arranged.

Four racks 5 are provided on guide plates 11 attached to the left and right side walls of the upper frame 7 at two locations in the longitudinal direction, and pinions 6 meshing with these are provided on the lower frame 2.
Is pivotally supported on the side wall. Further, levers 12 are attached to the shafts of the two pinions 6 on the front side, and by rotating these levers 12, the upper frame 7 is attached to the side wall of the lower frame 2 by two pairs of left and right guide plates 11. Guided to move up and down. When each lever 12 is rotated to raise the upper frame 7, the tip of each lever 12 is moved to the lower frame 2.
It is adapted to be locked by a stopper 13 attached to the front side wall of the. Each stopper 13 has a slide member 13a protruding outward, and each rotated lever 1
2 is locked by protruding these slide members 13a.

The drive rollers 4a and 9a have the same diameter, and the sprocket 14 having the same diameter is attached to the respective shaft ends. The sprocket 16 is attached to the rotary shaft of the motor 15 provided on the frame 1. The conveyor belt 3 and the pinching belt 8 are connected by a common transmission chain 17.
Is driven at a constant speed in the transport direction indicated by the arrow in FIG.

The transmission chain 17 includes a fixed sprocket 18 and a swing sprocket 1 provided on the lower frame 2.
It is also wound around 9, so that when the upper frame 7 moves up and down, its tension is adjusted to be constant.
The swing sprocket 19 is attached to a tip end of a rotatable arm 20, and a coil spring 21 is used for the transmission chain 1.
It is pressed against 7.

1 and 2 show a state in which plate laver with good flatness is heated, the pinching belt 8 is elevated together with the upper frame 7, and the plate laver to be heated is the left side supply end in FIG. It is supplied from 22 and is discharged to the right discharge end 23 by the conveyor belt 3 while being heated by the upper and lower infrared heaters 10 without being pressed by the pressing belt 8.

3 and 4 show a state in which the pinching belt 8 is lowered together with the upper frame 7 to heat the plate laver with poor flatness. At this time, each lever 12 is disengaged from the stopper 13, and the upper frame 7 is descending by its own weight while meshing with the rack 5 and the pinion 6, and the plate laver supplied from the supply end 22 is the upper and lower infrared heaters. While being heated at 10, the weight of the upper frame 7 and the pressure belt 8 presses the conveyance belt 3 and the pressure belt 8 to convey the sheet to the discharge end 23, and the flatness is corrected.

In the above-described embodiment, the raised clamping belt is driven even when the plate laver is not clamped, but the clamping belt may be stopped at this time. When the pressure belt is driven by the same drive source as the conveyor belt, the transmission to the pressure belt can be turned on / off using a clutch or the like.

Further, the raising / lowering means of the pinching belt is not limited to that of the embodiment, and other means such as a raising / lowering cylinder may be used, and depending on the thickness and flatness of the plate laver. You may make it adjust the descending position of a clamping belt.

[0019]

As described above, in the plate laver heating device of the present invention, the pinching belt formed of the mesh driven at a constant speed is arranged opposite to the mesh conveyor belt, This pinching belt can be raised and lowered, and when heating plate laver with poor flatness, the platen belt is lowered to convey the plate laver while pinching it with the conveyor belt. Selectively correct bad plate laver,
The commercial value can be increased, and damage due to being caught in a process such as packaging can be eliminated to improve the yield.

Further, each drive roller for driving the conveying belt and the pressure belt is connected to the rotary shaft of the drive source by the same transmission chain or transmission belt, and the transmission that changes as the pressure belt moves up and down. By providing a means for adjusting the tension of the chain or the transmission belt, even if the clamping belt is moved up and down, the drive source of the conveyor belt and the clamping belt can be shared, the number of drive sources installed can be reduced, and both belts can be installed. Speed adjustment can be eliminated.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a plate laver heating device.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a front view showing a state in which the pinching belt of FIG. 1 is lowered.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

[Explanation of symbols]

1 stand 2 frames 3 Conveyor belt 4a drive roller 4b driven roller 5 racks 6 pinion 7 frames 8 clamping belt 9a drive roller 9b Driven roller 10 heater 11 Guide plate 12 levers 13 Stopper 13a slide member 14 sprockets 15 motor 16 sprockets 17 chains 18, 19 sprockets 20 arms 21 coil spring 22 Supply end 23 Discharge end

Claims (2)

[Claims] 1. Heating of plate seaweed, wherein an endless conveyor belt driven by being wound around a drive roller is formed of mesh, and heaters are arranged to heat plate seaweed conveyed on the conveyor belt from both upper and lower sides. In the device, an endless pinching belt, which is opposed to above the conveyor belt and is wound around a driving roller and driven at a constant speed with the conveyor belt,
The pinching belt is formed of a mesh, and means for moving up and down is provided, and when the pinching belt is lowered, the plate laver is conveyed while pinching it with the conveyor belt. It is a plate laver heating device. 2. The drive rollers for driving the conveyor belt and the pinching belt are connected to a rotary shaft of a drive source by the same transmission chain or transmission belt, and change as the pinching belt moves up and down. The plate laver heating device according to claim 1, further comprising means for adjusting tension of the transmission chain or the transmission belt.