JP6844781B2 - Kelp stretcher - Google Patents

Description

The present invention relates to a device for smoothing wrinkles of kelp that has been dried and stored after harvesting. More specifically, the kelp is sandwiched by a conveyor belt, and the kelp is conveyed while gradually increasing the pinching force from the beginning to the end of the pinching. Regarding a device that smoothes wrinkles in kelp by doing.

The kelp is dried and stored after harvesting. For kelp stored in a dry state, both ends in the width direction are usually cut off in the process up to commercialization. Almost the entire dried kelp is wrinkled in the longitudinal direction, and when excising both ends in the width direction, it is necessary to smooth out the wrinkles in advance from the viewpoint of excision workability.

Conventionally, as a method of smoothing wrinkles of kelp, a method is used in which an operator winds kelp using a kelp wrapping device while smoothing wrinkles by hand, waits for a while, and then stretches the rolled kelp. As a kelp wrapping device, a device for wrapping kelp around a pipe with a diameter of several centimeters, a device for wrapping kelp around a roller with a diameter of several tens of centimeters, and a device for tightening the kelp wrapped around the roller with a belt may be used.

Patent Document 1 proposes a device in which wrinkles are smoothed by sandwiching kelp between a large-diameter rotating roller and a wide belt moving along the surface thereof, and then the kelp is discharged. Further, Patent Document 2 proposes a device for smoothing wrinkles of kelp using three rollers having different functions. In the apparatus of Patent Document 2, a first roller that removes sand while stretching and spreading wrinkles, a second roller that heats kelp to smooth out wrinkles, and a third roller that smoothes wrinkles while cooling kelp are used. It is a device that is continuously arranged along the transport direction of kelp. The first roller is a brush roller arranged in a V shape so as to gradually narrow from the upstream side to the downstream side in the transport direction of kelp. The second roller is an iron roller provided with a heating means and which heats kelp at a temperature of less than 100 ° C. to smooth out wrinkles. The third roller is a cooling roller provided with a cooling means, which cools the heated and wrinkled kelp to make it into a wrinkle-free form.

Actual Kaihei 6-55395 Japanese Patent Application Laid-Open No. 10-66554

In the conventional wrinkle smoothing method, the dried kelp is heated and humidified to soften it, and then the worker smoothes the wrinkles using the above-mentioned kelp winding device. However, this method requires many work steps such as lapping and tightening kelp using a device, then removing the rolled kelp from the device, and stretching the rolled kelp flat, which requires a large amount of this work process. Repeating for all of the kelp is extremely ineffective. Further, in this method, since sufficient pressing pressure cannot be obtained, it is necessary to take time to smooth out the wrinkles, which requires a long time for the work.

In the device proposed in Patent Document 1, the wide belt receives the pressing force from the rotating roller, so that the kelp sandwiched between the rotating roller and the wide belt is pressurized. However, in this device, the pressing force applied to the kelp is determined only by the tension of the wide belt, and if a large tension is applied to the wide belt, the rigidity of the device becomes a problem. ..

The apparatus proposed in Patent Document 2 can continuously perform wrinkle smoothing, heating and cooling. However, in this device, if the wrinkles are smoothed with the first roller before heating the dried kelp, the kelp will crack. Further, since the second roller and the third roller only pressurize only a part of the kelp sandwiched between the upper and lower rollers in a short time, wrinkles cannot be effectively smoothed.

An object of the present invention is to provide a kelp stretching device capable of reliably smoothing wrinkles of kelp by one treatment without damaging the kelp.

The kelp stretching device according to the present invention has a first strip-shaped continuum having a first transport surface and a second strip-shaped continuum having a second transport surface arranged to face the first transport surface. And a power unit for operating the first strip-shaped continuum and the second strip-shaped continuum so as to move the kelp between the first transport surface and the second transport surface. The kelp stretching device further includes a narrowing force applying means, and in the narrowing force applying means, the force of sandwiching the kelp by the first transport surface and the second transport surface is the first transport surface and the second transport surface. A force is applied to one or both of the first transport surface and the second transport surface so that the surface increases from the upstream side to the downstream side in the moving direction.

In one embodiment, the narrowing force applying means can be configured so that the force with which the first transport surface and the second transport surface sandwich the kelp can be adjusted. It is more preferable that the force for sandwiching the kelp is adjusted so as to gradually increase from the upstream side to the downstream side in the moving direction of the first transport surface and the second transport surface.

In one embodiment, the kelp stretching device is arranged so as to push the first transport surface from the side opposite to the surface in contact with the kelp toward the second transport surface. And a plurality of second intermediate rollers arranged so as to push the second transport surface in the direction of the first transport surface from the side opposite to the surface in contact with the kelp. It is preferable that each of the plurality of first intermediate rollers and each of the plurality of second intermediate rollers are arranged in a staggered manner along the transport direction of the first and second transport surfaces. The plurality of first intermediate rollers and the plurality of second intermediate rollers preferably have a length corresponding to at least the width of the kelp.

In one embodiment, the kelp stretching device has an inlet portion through which the kelp is inserted between the first transport surface and the second transport surface, and the kelp has the first transport surface and the second transport surface. It may have an outlet portion to be discharged from between. In this kelp stretching device, the pinching force applying means includes an inlet side pinching force adding portion for applying a force for sandwiching the kelp between the first transport surface and the second transport surface at the inlet portion, and a second pinching force applying portion at the outlet portion. It is preferable that the first transport surface and the second transport surface have an outlet side pinching force adding portion that applies a force for sandwiching the kelp.

In one embodiment, the kelp stretching device is arranged so as to push the first transport surface toward the second transport surface from the side opposite to the surface in contact with the kelp at the inlet portion. A roller and a second inlet-side roller arranged to push the second transport surface in the direction of the first transport surface from the side opposite to the surface in contact with the kelp are provided, and the first transport surface is provided at the outlet portion. The first outlet side roller arranged so as to push the surface in the direction of the second transport surface from the side opposite to the surface in contact with the kelp, and the second transport surface from the side opposite to the surface in contact with the kelp. It may be provided with a second outlet-side roller arranged to push in the direction of the transport surface of 1. In this kelp stretching device, the inlet side pinching force applying portion pushes the first inlet side roller and the second inlet side roller toward each other, and the outlet portion side pinching force applying portion is the first. The outlet side roller and the second outlet side roller of the above are pushed toward each other.

In one embodiment, the pinching force applying means has a coil spring, and by utilizing the restoring force of the coil spring, a force for pinching the kelp is generated by the first transport surface and the second transport surface. can do. In one embodiment, the kelp stretching device may further include foreign matter removing means for removing foreign matter on the surface of the kelp discharged at the outlet.

According to the kelp stretching device of the present invention, the kelp thrown in from the inlet portion is sandwiched between the upper and lower transport surfaces from the inlet portion to the outlet portion, wrinkles are stretched while being gradually pressurized, and the kelp is discharged from the outlet portion. Since the wrinkles are in a stretched state at the time, the wrinkles can be smoothed and surely smoothed by one treatment. When the transport surface is configured so that the force for sandwiching the kelp can be adjusted, wrinkles can be smoothed at an optimum pressure that does not cause cracking depending on the condition such as the thickness of the kelp. Between the inlet and the outlet, a plurality of intermediate rollers having a length corresponding to the width of the kelp are provided in a staggered pattern in the transport direction of the transport surface, so that the thickness of the moving kelp is increased. Even if there is a difference, the other positions on the transport surface do not rise, and the kelp can be effectively pressurized.

It is a schematic diagram of the kelp which stretches a wrinkle by the kelp stretching device which concerns on this invention. It is a schematic block diagram of the kelp stretching apparatus which concerns on one Embodiment of this invention, (a) is a top view, (b) is a front view. It is an enlarged view which shows the pinching force adding means of the kelp stretching apparatus which concerns on one Embodiment of this invention. It is an enlarged view which shows the entrance plate part of the kelp stretching apparatus which concerns on one Embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

2A and 2B show a schematic configuration diagram of a kelp stretching device 1 according to an embodiment of the present invention, FIG. 2A is a top view, and FIG. 2B is a front view. The kelp stretching device 1 (hereinafter, simply referred to as device 1) includes a first unit 10 and a second unit 20 located below the first unit.

At the left end of the device 1 shown in FIG. 2 (hereinafter referred to as the inlet side), at the inlet portion between the first unit 10 and the second unit 20, for example, a commercially available heating device or the like is used after drying. The softened kelp is inserted. The inserted kelp is gradually wrinkled while being conveyed between the first unit 10 and the second unit 20, and at the right end of the device 1 (hereinafter referred to as the exit side), the first unit 10 and the first unit 20 From the outlet between the unit 20 and the unit 20, the whole wrinkled kelp is discharged. The length and width of the device 1 are not limited, but it is preferable that the kelp whose temperature has been lowered to the extent that the wrinkles are smoothed and hardened in that state is discharged from the outlet portion of the kelp. The width is preferably wider than the width.

The first unit 10 has a first left frame 11 and a first right frame 12, so that the first left frame 11 and the first right frame 12 have inner surfaces facing each other. Arranged in parallel. The left frame means a frame located on the left side from the inlet side to the exit side in the device 1, and the right frame means a frame located on the right side. Between the first left frame 11 and the first right frame 12, the first inlet side roller 13 and the first exit side roller 14 are arranged at positions corresponding to both ends in the longitudinal direction of the frame. Will be done.

The first inlet side roller 13 and the first outlet side roller 14 are rotatably connected to the first left frame 11 and the first right frame 12 at both ends of the rotating shaft. The first inlet-side roller 13 is connected to a power source 41 such as a motor via, for example, a power transmission belt 42, and can rotate around a rotation shaft by the power from the power source 41. The first outlet side roller 14 is designed to rotate freely.

A first strip-shaped continuum 15 is endlessly bridged on the outer peripheral surfaces of the first inlet-side roller 13 and the first outlet-side roller 14. The first strip-shaped continuum 15 has a downward first transport surface 151 which is a portion of sandwiching and transporting kelp between the first strip-shaped continuum 15 and the second transport surface 251 which will be described later. When the first inlet-side roller 13 rotates, the first strip-shaped continuum 15 moves in the direction of arrow A shown in the figure with the first transport surface 151 facing downward.

The first strip-shaped continuum 15 is preferably a cloth conveyor belt, but the present invention is not limited to this, and for example, a resin conveyor belt can also be used. The cloth conveyor belt is more preferable because it has high heat resistance, does not easily store heat, and does not damage the kelp.

The first unit 10 further has a plurality of first intermediate rollers 16. The plurality of first intermediate rollers 16 are arranged between the first inlet side roller 13 and the first outlet side roller 14 at a predetermined interval. The plurality of first intermediate rollers 16 are preferably rollers having a diameter smaller than that of the first inlet side roller 13 and the first outlet side roller 14. The plurality of first intermediate rollers 16 are rotatably connected to the first left frame 11 and the first right frame 12 at both ends of the rotating shaft, and the first transport surface 151 of the first strip-shaped continuum 15. Is arranged at a position where the is pushed from the inside to the outside, that is, a position where the is pushed in the direction of the second transport surface 251 which will be described later.

The second unit 20 has a second left frame 21 and a second right frame 22, so that the second left frame 21 and the second right frame 22 have inner surfaces facing each other. Arranged in parallel. Between the second left frame 21 and the second right frame 22, the second inlet side roller 23 and the second exit side roller 24 are arranged at positions corresponding to both ends in the longitudinal direction of the frame. Will be done.

The second inlet side roller 23 and the second outlet side roller 24 are rotatably connected to the second left frame 21 and the second right frame 22 at both ends of the rotating shaft. The second inlet-side roller 23 is connected to the first inlet-side roller 13 via, for example, a gear 44, and the first inlet-side roller 23 is rotated around the rotation axis as the first inlet-side roller 13 rotates. It is possible to rotate in the direction opposite to that of the inlet roller 13. The second outlet side roller 24 is designed to rotate freely.

A second strip-shaped continuum 25 is laid on the outer peripheral surfaces of the second inlet-side roller 23 and the second outlet-side roller 24 in an endless manner. The second strip-shaped continuum 25 has an upward second transport surface 251 which is a portion for transporting the kelp with the kelp sandwiched between the first transport surface 151. When the second inlet-side roller 23 rotates, the second strip-shaped continuum 25 moves in the direction of arrow B shown in the figure with the second transport surface 251 facing upward.

The second strip-shaped continuum 25 is preferably the same cloth conveyor belt as the first strip-shaped continuum 15, but the present invention is not limited to this, and for example, a resin conveyor belt can be used. The cloth conveyor belt is preferable because it has high heat resistance, does not easily store heat, and does not damage the kelp. The first strip-shaped continuum 15 and the second strip-shaped continuum 25 are preferably made of the same material, but may be made of different materials depending on the intended use.

The second unit 20 further has a plurality of second intermediate rollers 26. The plurality of second intermediate rollers 26 are arranged at predetermined intervals between the second inlet side roller 23 and the second outlet side roller 24. The plurality of second intermediate rollers 26 are preferably rollers having a diameter smaller than that of the second inlet side roller 23 and the second outlet side roller 24. The plurality of second intermediate rollers 26 are rotatably connected to the second left frame 21 and the second right frame 22 at both ends of the rotating shaft, and the second transport surface 251 of the second strip-shaped continuum 25 is connected. Is arranged at a position where the wheel is pushed from the inside to the outside, that is, a position where the wheel is pushed in the direction of the first transport surface 151.

As shown in FIG. 2, each of the plurality of intermediate rollers 16 of the first unit 10 and each of the plurality of intermediate rollers 26 of the second unit 20 are the first and second transport surfaces 151 and 251. It is preferable that they are arranged in a staggered pattern vertically along the transport direction of the above. By arranging in this way, the kelp transported between the first transport surface 151 and the second transport surface 251 is pressed alternately from the vertical direction in the opposite direction. Wrinkles can be smoothed out more effectively than when pressure is applied from only one direction.

A first inlet side roller 13, a first outlet side roller 14, a second inlet side roller 23, a second outlet side roller 24, a plurality of first intermediate rollers 16, and a plurality of second intermediate rollers 26. It is preferable to use a roller having a small diameter. Since the roller having a small diameter has a small contact area with the kelp, a sufficient pressing force on the kelp can be obtained even with a small force.

The first unit 10 and the second unit 20 have a positional relationship in which the first transport surface 151 of the first strip-shaped continuum 15 and the second transport surface 251 of the second strip-shaped continuum 25 face each other. Is arranged by, and is connected by the pinching force applying means. In the present embodiment, the pinching force applying means has four pinching force applying portions 50, 52, 60, 62 provided at both ends in the width direction at both ends in the longitudinal direction. Pressure is applied to the kelp that is sandwiched between the first transport surface 151 and the second transport surface 251 by the pinching force adding portions 50, 52, 60, 62 provided at four locations to wrinkle the kelp. Can be stretched.

FIG. 3 is an enlarged view of the inlet-side pinching force adding portion 52 shown on the front side of the left end of the device 1 in FIG. 2 (b). The inlet-side pinching force adding portion 52 is the first inlet-side plate 521 provided on the inlet side of the first right frame 12 in the first unit 10 and the second right frame 22 in the second unit 20. It has a second inlet side plate 522 provided on the inlet side. The inlet-side pinching force addition portion 52 further includes a push spring mechanism 523 that can apply a force to the first inlet-side plate 521 and the second inlet-side plate 522 so as to push the first inlet-side plate 521 and the second inlet-side plate 522 in the direction of each other. .. The push spring mechanism 523 includes a bolt 524 penetrating the first inlet side plate 521 and the second inlet side plate 522, a nut 525 screwed into the bolt 524, and a lower surface of the nut 525 and the second plate 522. It has a coil spring 526 arranged between the two.

With this configuration, the first inlet side plate 521 and the second inlet side plate 522 are pushed toward each other by the push spring mechanism 523. Therefore, the right side portion on the inlet side of the first unit 10 to which the first inlet side plate 521 is attached and the right portion on the inlet side of the second unit 20 to which the second inlet side plate 522 is attached are the same. As a result, the first transport surface 151 and the second transport surface 251 pressurize the kelp on the right side portion on the inlet side.

Although not shown in detail in the drawings, other pinching force adding portions, that is, an inlet side pinching force adding portion 50 provided on the left side portion on the inlet side of the device 1, and an outlet provided on the left side portion on the exit side. The side pinching force adding portion 60 and the outlet side pinching force adding portion 62 provided on the right side portion on the outlet side have the same configuration as the inlet side pinching force adding portion 52. That is, the inlet side pinching force adding portion 50 has a first inlet side plate 501, a second inlet side plate 502, and a push spring mechanism 503, and the push spring mechanism 503 includes a bolt 504, a nut 505, and a coil spring 506. Has.

Further, the outlet side pinching force adding portions 60 and 62 have a first outlet side plates 601 and 621, a second outlet side plates 602 and 622, and a push spring mechanism 603 and 623, respectively, and the push spring mechanism 603. , 623 have bolts 604, 624, nuts 605, 625 and coil springs 606, 626. Similar to the case of the inlet side pinching force adding portion 52, due to the action of the restoring force of the coil springs of the inlet side pinching force applying portion 50 and the outlet side pinching force applying portions 60 and 62, the first transport surface 151 and the second transport surface 151 and the second The transport surface 251 pressurizes the kelp sandwiched between them at the left side portion on the inlet side, the left side portion on the outlet side, and the right side portion on the outlet side.

In the device 1, the pinching force adding portions 50, 52, 60, 62 are provided at two locations on the left and right on the inlet side and two locations on the left and right on the exit side. By changing the tightening positions of the nuts 505, 525, 605, and 625, the pinching force adding portions 50, 52, 60, and 62 have coil springs 506, 526, 606, and 626 as the first plates 501, 521, and 601. The force that pushes the 621 and the second plates 502, 522, 602, and 622 toward each other can be appropriately changed. Therefore, the force with which the first transport surface 151 and the second transport surface 251 sandwich the kelp can be arbitrarily adjusted according to the thickness of the kelp, the state of wrinkles, and the like. Therefore, the pressing force by the inlet side pinching force applying portions 50 and 52 is set to be substantially the same size, and the pressing force by the outlet side pinching force applying portions 60 and 62 is set to substantially the same magnitude, and the pressing force by the inlet side pinching force applying portion is approximately the same. By setting the pressure larger than the pressure applied by 50 and 52, the force for sandwiching the kelp between the first transport surface and the second transport surface is reduced from the upstream side to the downstream side in the moving direction of the first transport surface and the second transport surface. It can be set to increase toward the side.

The pinching force applying means is not limited to the position and number shown in FIG. For example, in addition to the positions shown in FIG. 2, a plurality of means may be further provided on the side surface of the device 1.

In the device 1, the worker inserts the kelp between the first strip-shaped continuum 15 and the second strip-shaped continuum 25 from the entrance while smoothing out the wrinkles. At this time, it is preferable to insert the kelp while maintaining the bent portion and the stretched state of the wrinkles. It is preferable to provide the inlet plate portion 30 on the inlet side of the device 1 for the purpose of maintaining the state in which the wrinkles and bends are stretched and further for ensuring the safety of the fingertips of the operator.

FIG. 4 is an enlarged side view showing the inlet plate portion 30. In FIG. 4, for the sake of clarity, the portion other than the inlet plate portion 30 is shown by a dotted line. The inlet plate portion 30 has an upper plate 32 attached to the first unit 10 and a lower plate 34 attached to the second unit 20. As shown in FIG. 2A, the width of the inlet plate portion 30 is preferably substantially the same as the width of the first and second strip-shaped continuums 15 and 25.

A space 36 for inserting kelp is provided between the upper plate 32 and the lower plate 34. The space 36 has a narrow portion close to the first and second strip-shaped continuums 15 and 25, and is directed away from the first and second strip-shaped continuums 15 and 25 (that is, toward the left side of FIG. 4). ) It is preferable that it is expanded. The size of the space 36, that is, the distance between the upper plate 32 and the lower plate 34, is preferably adjustable.

As shown in FIG. 2, it is preferable that the outlet side of the device 1 is provided with a foreign matter removing means for removing foreign matter adhering to the wrinkled kelp. The foreign matter removing means is not limited, but the rotary brush mechanism 70 is preferable. The rotary brush mechanism 70 includes a first brush 74 that is rotated around a first rotating shaft 72 by a power (not shown) and a second brush 78 that is rotated around a second rotating shaft 76 by a power (not shown). .. The first brush 74 and the second brush 78 are arranged at intervals such that the upper and lower surfaces of the kelp discharged from the outlet portion can be rubbed.

The rotary brush mechanism 70 is preferably configured to be removable from the device 1, but may be arranged on the outlet side as a device separate from the device 1. The rotation speed of the rotary brush mechanism 70 is preferably faster than the transport speed of the first and second strip-shaped continuums 15 and 25. For the brush portion, for example, nylon having long bristles can be used, but the material and the length of the bristles are not limited as long as they are flexible and do not damage the surface of the kelp.

1 Kelp stretching device 10 1st unit 11 1st left frame 12 1st right frame 13 1st inlet side roller 14 1st outlet side roller 15 1st strip-shaped continuum 151 1st transport surface 16 1st intermediate roller 20 2nd unit 21 2nd left frame 22 2nd right frame 23 2nd inlet side roller 24 2nd outlet side roller 25 2nd strip-shaped continuum 251 2nd transport surface 26 Second intermediate roller 30 Inlet plate 32 Upper plate 34 Lower plate 36 Space 40 Power unit 41 Power source
42 Power transmission belts 44, 45 Gears 50, 52 Inlet side pinching force applying means 501, 521 First inlet side plate 502, 522 Second inlet side plate 503, 523 Push spring mechanism 504, 524 Bolt 505, 525 Nut 506 526 Coil spring 60, 62 Outlet side pinching force applying means 601, 621 First outlet side plate 602, 622 Second outlet side plate 603, 623 Push spring mechanism 604, 624 Bolt 605, 625 Nut 606, 626 Coil spring 70 Foreign matter removing means 72 1st rotation axis 74 1st brush 76 2nd rotation axis 78 2nd brush K kelp L1 leaf L2 red leaf R1 root kelp R2 root

Claims (10)

It is a kelp stretching device for smoothing wrinkles of kelp.
A first strip-like continuum having a first transport surface,
A second strip-shaped continuum having a second transport surface arranged so as to face the first transport surface,
A power unit that causes the first strip-shaped continuum and the second strip-shaped continuum to move so that the first transport surface and the second transport surface move across the kelp.
The force for sandwiching the kelp between the first transport surface and the second transport surface increases from the upstream side to the downstream side in the moving direction of the first transport surface and the second transport surface. A kelp stretching device including a pinching force applying means for applying a force to one or both of a first transport surface and the second transport surface. The kelp stretching device according to claim 1, wherein the narrowing force applying means can adjust the force for sandwiching the kelp between the first transport surface and the second transport surface. A plurality of first rollers arranged so as to push the first transport surface in the direction of the second transport surface from the side opposite to the surface in contact with the kelp.
A claim comprising a plurality of second rollers arranged to push the second transport surface in the direction of the first transport surface from a side opposite to the surface in contact with kelp. The kelp stretching device according to claim 1 or 2. Each of the plurality of first rollers and each of the plurality of second rollers are arranged in a staggered manner along the transport direction of the first and second transport surfaces. Item 3. The kelp stretching device according to item 3. The kelp stretching device according to claim 3 or 4, wherein the plurality of first rollers and the plurality of second rollers have a length corresponding to at least the width of kelp. An inlet portion where kelp is inserted between the first transport surface and the second transport surface, and an outlet portion where kelp is discharged from between the first transport surface and the second transport surface. And have
The pinching force applying means includes an inlet side pinching force adding portion for applying a force for sandwiching the kelp between the first transport surface and the second transport surface at the inlet portion, and the first pinching force applying portion at the outlet portion. The method according to any one of claims 1 to 5, wherein the transport surface and the second transport surface have an outlet side pinching force adding portion that applies a force for sandwiching the kelp. Kelp stretching device. At the entrance portion, the first inlet side roller and the entrance portion are arranged so as to push the first transport surface in the direction of the second transport surface from the side opposite to the surface in contact with the kelp. A second inlet-side roller arranged so as to push the second transport surface in the direction of the first transport surface from a side opposite to the surface in contact with the kelp.
In the outlet portion, the first outlet side roller arranged so as to push the first transport surface in the direction of the second transport surface from the side opposite to the surface in contact with the kelp, and
The outlet portion includes a second outlet side roller arranged so as to push the second transport surface in the direction of the first transport surface from the side opposite to the surface in contact with the kelp.
The inlet side pinching force applying portion presses the first inlet side roller and the second inlet side roller toward each other.
The kelp stretching device according to claim 6, wherein the outlet-side pinching force applying portion presses the first outlet-side roller and the second outlet-side roller toward each other. The pinching force adding means has a coil spring, and by utilizing the restoring force of the coil spring, a force for pinching the kelp is generated by the first transport surface and the second transport surface. The kelp stretching device according to any one of claims 1 to 7, wherein the kelp stretching device is characterized. The kelp stretching apparatus according to claim 6, further comprising an entrance plate portion having a space that expands outward from the entrance portion at the entrance portion. The kelp stretching device according to claim 6, further comprising a rotating brush for removing foreign matter on the surface of the kelp discharged at the outlet portion.

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