Seaweed tear removal device

Abstract

To provide a device for removing torn seaweed, which can remove torn seaweed at an early stage and thereby eliminate the occurrence of problems and troubles in transportation. [Solution] The torn seaweed removal device comprises a torn seaweed removal device 16 arranged next to the drying device in the seaweed production line, and an undried discharge device 3 arranged for the next process and which detects, distinguishes and discharges undried seaweed after being discharged from the drying device. The torn seaweed removal device has a conveyor 17 which transports seaweed one sheet at a time, a detection means 18 which can detect seaweed A transported by the conveyor, a discrimination means 19 which can distinguish the presence or absence of torn seaweed A2 based on the detection results of the detection means, and a removal means 20 which can remove torn seaweed from the seaweed transported by the conveyor based on instructions from the discrimination means, and removes torn seaweed that has been transported from the drying device and is either short in length or narrow in width, or short in length and narrow in width, which is severely torn and may cause transportation problems.

Description

[Technical Field]

[0001] This invention relates to a seaweed production line and to a breakage removal device. [Background technology]

[0002] Technical Background and Prior Art In the production line for dried seaweed (hereafter simply referred to as nori), after the pre-processing lines of picking raw seaweed, washing with water, papering, dehydrating, and drying, the nori is produced by following the post-processing lines of discharging undried seaweed, turning over, inspecting and sorting, collecting, aligning, folding, and bundling. An example of such a conventional post-process line is shown in Figure 6. The laver A is usually discharged from the drying device 1 through one or two outlets 2 provided on the device. The illustrated example is an example of a type in which seaweed A is discharged from two outlets 2 on the left and right sides of the drying device 1, and on one of the lines shown, seaweed A is produced by passing through the undried discharge device 3 → inversion device 4 → inspection and sorting device 5 (with accumulation and alignment device) → folding and binding device 6 → stocker 7, etc. in that order. In the other line shown in the figure, the order is reversed from the one line, that is, the inverting device 4 →non-dried discharge device 3. In any case, in the seaweed production line, seaweed A discharged from the drying device 1 is transported one sheet at a time through the undried discharge device 3, the inversion device 4, and the inspection and sorting device 5, where various processes are carried out during the transport process. Summary of the Invention [Problem to be solved by the invention]

[0003] However, the following problems have been pointed out regarding such conventional techniques. (Transportation problems occur) It was pointed out that there were problems with transporting Nori A during the wet discharge process, the inversion process, and the inspection and sorting process on the production line. That is, in the wet discharge device 3, the inverting device 4, and the inspection and sorting device 5, the seaweed A is transported one sheet at a time, and there are many cases where transport problems and transport troubles such as stagnation, disorder, clogging, bending, etc. occur during transport. These problems were caused by tears in the Nori A. Large pieces of Nori A were often mixed in with the Nori A delivered from the drying device 1 in the drying process, causing the above problems. This type of transportation problem also affected the subsequent transport of Nori A, causing the large amount of Nori A to become clogged and bent, losing its commercial value. For details of the transportation trouble, see 1, 2, 3, and 4 below.

[0004] (Details 1: About torn seaweed) First, in the drying device 1 in the drying process, the heated and dried seaweed A is peeled off from the tray, but at this time, the seaweed A may be torn into large pieces. Sometimes the seaweed A may get caught at an angle and be torn into large pieces. Figure 4 (1) shows the normal size Nori A1, which is 210 mm long and 190 mm wide. In contrast, Figure 4 (2) shows various patterns of torn seaweed A2, which is torn to pieces. The torn seaweed A2 is torn to pieces with short length and / or narrow width, which may cause transport problems such as transport stagnation, disturbance, clogging, and bending. The torn seaweed A2 with such large tears was transported out of the drying device 1, causing transportation problems and transport troubles.

[0005] (Details 2: About conveyors) That is, in the non-dried sheet discharge device 3, the inverting device 4, and the inspection and sorting device 5, which are the next steps after the drying device 1, the laver A is transported one sheet at a time, and processing is performed during the transport process. Transportation is generally carried out by roller conveyors 8 shown in Figures 5(1) and (2), round belt conveyors 9 shown in Figures 5(3) and (4), or flat belt conveyors 10 shown in Figures 5(5) and (6). The roller conveyor 8 is the most commonly used. The roller 11 spacing is about 130mm to 200mm, and torn seaweed A2, which has dimensions shorter than this spacing, tends to have difficulty passing through stably, causing frequent transport problems. - Round belt conveyor 9 has been reported to have problems transporting torn seaweed A2, depending on the pitch of round belt 12. The flat belt conveyor 10 is used only where the alignment of the seaweed A is required, but there was a risk of problems with the transportation of torn seaweed A2 occurring before, after, or between the flat belts 13.

[0006] (Details 3: Regarding the entrance of the reversing device 4) Furthermore, not only with regard to the conveyors 8, 9, and 10 described above, but also with regard to the entrance of the reversing device 4 in the reversing process, transport problems and transport troubles were likely to occur. That is, at the entrance of the turnover device 4 (see (1) in Figure 1), the seaweed A is turned 45 degrees and conveyed to the drum roller 14 of the turnover device 4. The delivery by the turnover movement is carried out on the lower support plate 15 while being positioned and supported between the clamping and pressing rollers. In this case, torn seaweed A2 with short length or width dimensions would fall out of the gap between the clamping and pressing rollers on the lower receiving plate 13 due to insufficient dimensions, and would not be transferred or transported, but would become stuck and easily clogged, often causing transport problems.

[0007] (Details 4: Relationship with inspection and sorting device 5) Incidentally, in the production line for Nori A, the inspection and sorting device 5 in the latter half of the inspection and sorting process also inspects, sorts, and rejects Nori A for defects in shape. The inspection and sorting device 5 closely inspects the seaweed A from a quality standpoint, and also inspects for holes and tears in the seaweed A, but the transport problems and transport troubles caused by the torn seaweed A2 mentioned above are problems that had occurred before. In other words, the above-mentioned transportation defects and transportation troubles that are the issue this time were problems that occurred due to torn seaweed A in the process before the latter inspection and sorting device 5, which also inspects for tears, etc. This is a problem with the wet discharge device 3, the inverting device 4, and the inspection and sorting device 5, which are located before the inspection and sorting device 5.

[0008] (About this invention) The device for removing torn seaweed of the present invention was developed in consideration of the above-mentioned circumstances and to solve the problems of the prior art. The purpose of this invention is, first, to propose a device for removing torn seaweed at an early stage, and second, to eliminate the occurrence of transportation problems and transport troubles. [Means for solving the problem]

[0009] The technical means of the present invention to solve these problems are as follows, as set forth in the claims of the utility model registration.

[0010] (1) The torn seaweed removal device of claim 1 is arranged next to the drying device in a seaweed production line, and comprises a torn seaweed removal device that removes torn seaweed that has been transported from the drying device and is either short in length or narrow in width, or short in length and narrow in width, and is severely torn and may cause transportation problems, and an undried seaweed discharge device that is arranged for the process next to the torn seaweed removal device, and the torn seaweed removal device has a conveyor that transports seaweed one sheet at a time, a detection means that can detect seaweed transported by the conveyor, a discrimination means that can determine whether or not there is torn seaweed based on the detection result of the detection means, and a removal means that can remove torn seaweed from the seaweed transported by the conveyor based on instructions from the discrimination means, and the undried seaweed discharge device is characterized in that it detects, discriminates, and discharges undried seaweed after it has been discharged from the drying device.

[0011] (2) The seaweed tear removal device of claim 2 is characterized in that, in claim 1, the undried discharge device has a sensor roller, a drive rubber roller, and a damper, and the sensor roller and the drive rubber roller can sandwich and pass each sheet of seaweed one by one, and the sensor roller can detect the dryness of the seaweed, and seaweed determined to be undried is discharged by the damper which opens and closes.

[0012] (3) The seaweed tear removal device of claim 3 is characterized in that, in claim 2, the undried seaweed discharge device has the sensor roller located above the drive rubber roller, and the sensor roller presses the seaweed passing by its own weight and detects the dryness by the resistance value between the wound wires, and the drive rubber roller has an insulation resistance of 10 MΩ or more.

[0013] (4) The tear removal device for laver of claim 4 is arranged next to a drying device in a laver production line, and comprises a tear removal device that removes torn laver brought in from the drying device that is either short in length or narrow in width, or short in length and narrow in width, and that is severely torn and may cause transportation trouble, and an undried discharge device arranged for the process next to the tear removal device, and the tear removal device has a conveyor that transports laver sheets one by one, a detection means that can detect the laver transported by the conveyor, a discrimination means that can determine whether or not there is torn laver based on the detection result of the detection means, and a removal means that can remove torn laver from the laver transported by the conveyor based on the instruction of the discrimination means, and the undried laver is removed from the laver transported by the conveyor. The dry discharge device has a sensor roller, a drive rubber roller, and a damper. The sensor roller and the drive rubber roller can sandwich and pass each sheet of seaweed one by one, and the sensor roller can detect the dryness of the seaweed. Seaweed that is determined to be undried is discharged by the damper, which opens and closes. The sensor roller is located above the drive rubber roller and presses the seaweed that passes by with its own weight, and detects the dryness by the resistance value between the wound wires. The drive rubber roller has an insulation resistance of 10MΩ or more, and detects, distinguishes, and discharges undried seaweed after it is discharged from the drying device.

[0014] (5) The tear and removal device for nori seaweed of claim 5 is any one of claims 1 to 4, further comprising a reversing device having a drum roller, a lower support plate, a pinching roller and a pressing roller, which is disposed between the tear and removal device and the non-dried discharge device or disposed for the next process of the non-dried discharge device, and the drum roller rotates to turn the nori seaweed over, and is disposed at an angle of 45 degrees to the nori seaweed carrying-in side or the nori seaweed carrying-out side, and guides the nori seaweed carried in one by one along the outer periphery, turns it over upside down, and can turn it 90 degrees to be carried out, and the lower support plate is The device is characterized in that it is provided in a roughly triangular shape at the entrance of the inverting device, and is configured so that the nori can be guided on the lower receiving plate, turning the nori by 45 degrees, and transferred and transported one sheet at a time from the carry-in side to the drum roller side, the clamping rollers are configured at the carry-in side of the entrance of the inverting device to clamp the nori between the top and bottom and are driven at the bottom, allowing the nori to be transferred to the lower receiving plate and support positioning, and the pressing roller is configured on the upper side of the drum roller, allowing the nori to be pressed onto the drum roller.

[0015] (6) The seaweed tear removal device of claim 6 is characterized in that, in any one of claims 1 to 4, the conveyor of the seaweed tear removal device is a roller conveyor consisting of rollers arranged at intervals of 130 mm to 200 mm in the front-to-back direction, and a plate for preventing the seaweed being transported from falling is provided in the gap between the rollers of the roller conveyor.

[0016] (About the effects, etc.) The present invention is based on these means and is as follows: (1) In this method of producing laver, a removal process is provided between the drying process and the next process. (2) That is, a breakage removal device is provided next to the drying device. (3) The torn seaweed removal device removes any torn seaweed that is transported from the drying device, as this may cause problems or issues with transportation in subsequent processes. (4) In the torn seaweed removal device, the seaweed transported one sheet at a time on the conveyor is detected by at least the left and right sensors of the detection means, and based on the detection results, the discrimination means identifies torn seaweed and removes it using the removal means. (5) In this way, after the seaweed is transported from the drying equipment in the drying process, large pieces of torn seaweed are removed early in the process. (6) After the torn seaweed is removed, it is transported to the next process, which is the wet-seaweed discharge device, the inverting device, and the inspection and sorting device, on a roller conveyor, a round belt conveyor, or a flat belt conveyor, and is processed in each process. (7) In this way, when conveying the wet product through the non-drying discharge device, the inverting device, and the inspection and sorting device, conveyance problems and conveyance troubles are prevented. In other words, during this type of transportation, any torn seaweed that has been torn to a short length or / and narrow width is already removed by the torn seaweed removal device in the previous process, thereby preventing transportation problems such as seaweed stagnation, disorder, clogging, and bending during transportation due to insufficient dimensions. (8) Therefore, the seaweed tear removal device of the present invention has the following effects. [Effects of the Invention]

[0017] (First effect) First, torn seaweed is removed at an early stage. In the torn seaweed removal device of the present invention, a torn seaweed removal device for the torn seaweed removal process is additionally installed between the drying device in the drying process and the next process. As a result, torn seaweed that is torn to a large extent and has a short length and / or width is removed at an early stage in the first process after being discharged from the drying device in the drying process.

[0018] (Second effect) Second, the occurrence of transport problems and transport troubles is eliminated. In the device for removing torn seaweed of this invention, severely torn seaweed is removed early in the first process after being transported from the drying device in the drying process. As a result, transport problems and transport troubles such as seaweed stagnation, disorder, clogging, and bending in the subsequent wet-drying discharge device, turnover device, and inspection and sorting device in the wet-drying discharge process, turnover process, and inspection and sorting process are eliminated. The problems pointed out in this type of prior art mentioned above are avoided in advance. Therefore, it is also possible to prevent the problem from spreading to subsequently transported seaweed, causing large amounts of seaweed A to become clogged or bent, losing their commercial value. In this way, the effects of the present invention are remarkable and great, as all of the problems that existed in this type of prior art are solved. [Brief explanation of the drawings]

[0019] [Figure 1] The following describes the embodiments of the device for removing torn seaweed according to the present invention. Figure (1) is a plan view of a first example, and Figure (2) is a plan view of a second example. [Figure 2] The following figures are provided to explain the embodiments of the present invention. Figure (1) is a process block diagram of a first example, Figure (2) is a process block diagram of a second example, Figure (3) is a process block diagram of a third example, and Figure (4) is a process block diagram of a fourth example. [Figure 3] This section explains the mode for carrying out the device. The conveyor and removal means are shown, with (1) being a front view, (2) being a plan view, (3) being a front view without torn seaweed, and (4) being a front view with torn seaweed. [Figure 4] These are explanatory plan views of nori seaweed, where (1) shows normal-sized nori seaweed and (2) shows various types of torn nori seaweed. [Figure 5] These are explanatory diagrams of conveyors. Figure (1) is a front explanatory diagram of a roller conveyor, Figure (2) is a plan explanatory diagram of the same. Figure (3) is a front explanatory diagram of a round belt conveyor, Figure (4) is a plan explanatory diagram of the same. Figure (5) is a front explanatory diagram of a flat belt conveyor, Figure (6) is a plan explanatory diagram of the same. [Figure 6] FIG. 1 is a plan view of an example of a conventional seaweed production line. DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will be described in detail below with reference to the drawings. (Summary of the invention) First, the outline of this invention is as follows: In the method for producing Nori A of the present invention, a torn seaweed removal process is provided between the drying process and the next process, in which the Nori A brought in from the drying process is transported one sheet at a time, and torn Nori A2 is removed and transported to the next process. The tear removal device 16 for Nori A of the present invention is installed between the drying device 1 and the next process in the production line of Nori A, and removes torn Nori A2 from the Nori A transported from the drying device 1. The tear removal device 16 has a conveyor 17, a detection means 18, a discrimination means 19, a removal means 20, etc. The torn seaweed A2 is torn to pieces so that it has a short length and / or a narrow width that it may cause transport problems such as transport stagnation, disturbance, clogging, and bending. The above is an overview of the present invention. Below, the method for producing laver A and the device 16 for removing torn pieces of laver A according to the present invention will be described in more detail.

[0021] (Nori A production line) First, a representative example of the production line for Nori A will be outlined with reference to Figures 2 and 6. On the Nori A production line, Nori A is produced through pre-process lines such as picking raw seaweed, washing it, papering it, dehydrating it, and drying it, followed by post-process lines such as discharging the undried seaweed, turning it over, inspecting and sorting it, collecting it, aligning it, folding it, and bundling it. That is, the dried seaweed A in the last drying device 1 in the previous process line is discharged from its discharge outlet 2. →Then, as the sheets are transported one by one, the undried seaweed A is discharged by the undried discharge device 3, and then the sheet is turned over and rotated 90 degrees by the inversion device 4. →Then, the inspection and sorting device 5 inspects the quality of the sheet for shape and foreign objects, and selects and rejects defective sheets. →Then, after a large number of sheets, such as 10 sheets, are accumulated and aligned by an accumulation and alignment machine attached to the inspection and sorting device 5, →the sheets are folded in half by a folding and binding device 6 and bound into bundles with tape, →and then stored in a stocker 7, packed in boxes and shipped. The standard Nori A1 to be shipped is a rectangular sheet with a length of 210 mm, a width of 190 mm, and a thickness of approximately 0.2 mm, as shown in Figure 4(1). Incidentally, the laver A is usually discharged from the drying device 1 through one or two outlets 2 provided therein. The first example in Figure 2(1) and the second example in Figure 2(2) are types in which the discharge outlet 2 is provided in one location and the seaweed A is discharged from one location. The third example in Figure 2(3), the fourth example in Figure 2(4), and the conventional example in Figure 6 are types in which the discharge outlet 2 is provided in two locations and the seaweed A is discharged from two locations. Correspondingly, in the examples shown in Figures 2(1) and 2(2), the broken removal device 16, the inverting device 4, the wet discharge device 3, the inspection and sorting device 5, the folding and bundling device 6, etc. are arranged one by one and follow one system line. In contrast to this, in the examples of Figures 2(3), (4), and 6, two units are installed each, and they run on two separate lines. However, instead of this, it is also possible to install one unit each for common use after the reversing device 4 (example of Figure 2(3)) and for the devices 5 and 6 (example of Figure 2(4)), and to consolidate them into a single line. The above is the details about Nori A's production line.

[0022] (Conveyors 8, 9, and 10) Next, the conveyors 8, 9, and 10 will be described with reference to FIG. The non-dried sheet discharge device 3, the inverting device 4, and the inspection and sorting device 5 transport the laver A one by one, and each process is performed during the transport process. For transportation, roller conveyors 8 shown in Figures 5(1) and (2), round belt conveyors 9 shown in Figures 5(3) and (4), and flat belt conveyors 10 shown in Figures 5(5) and (6) are commonly used. The roller conveyor 8 has rollers 11 arranged at a front-to-back interval of approximately 130 mm to 200 mm in the above-mentioned devices 3, 4, and 5. This type is the most commonly used type because it is less troublesome to replace parts. 21 is a plate to prevent the seaweed A from falling as it is being transported. The round belt conveyor (V-belt conveyor, string belt conveyor) 9 is an endless round belt (V-belt, string belt) arranged between rollers 22 at a constant left-right pitch. In the above-mentioned devices 3, 4, and 5, it is used next to the roller conveyor 8 because of its stable conveying performance. The flat belt conveyor 10 has an endless flat belt 13 arranged between rollers 23. It is used in places where the seaweed A must be aligned when being transported to and from the devices 3, 4, and 5. The above is true for conveyors 8, 9, and 10.

[0023] (Regarding wet discharge device 3) Next, the wet paper discharge device 3 will be described with reference to FIG. 1(2). The non-dried seaweed discharge device 3 detects, distinguishes, and discharges non-dried seaweed A discharged from the drying device 1. In the illustrated wet discharge device 3, the seaweed A is sandwiched and passed between the upper and lower driven sensor rollers 24 and the drive rubber roller 25. The sensor roller 24 detects the dryness of the seaweed A, and the wet seaweed is determined to be wet and discharged by opening and closing the damper 26. The sensor roller 24 presses the seaweed A conveyed one by one by its own weight and detects the dryness level by the resistance value between the wound wires. The driving rubber roller 25 has an insulation resistance of 10 MΩ or more. The laver A is transported one sheet at a time by a roller conveyor 8 or the like between the upper and lower sensor rollers 24 and the drive rubber roller 25 . The above is the case with regard to the wet discharge device 3.

[0024] (Regarding the inverting device 4) Next, the reversing device 4 will be described with reference to FIG. 1(1). The inverting device 4 is equipped with a large-diameter drum roller 14 that rotates for inverting, and the drum roller 14 is disposed at an angle of 45 degrees to the carry-in side and the carry-out side of the nori seaweed A. The nori seaweed A is carried in one by one, and by guiding it along the outer periphery, it is turned over and turned 90 degrees before being carried out. At the entrance of the inverting device 4 equipped with such a drum roller 14, the seaweed A is turned 45 degrees on a roughly triangular guide support plate 15, and is transferred one sheet at a time from the loading side to the drum roller 14 side. To support the positioning of this transfer, the seaweed A is sandwiched between upper and lower sandwiching rollers 27 (lower driven) on the entrance side, and is pressed onto the drum roller 14 by a pressure roller 28 on the drum roller 14 side. The laver A is carried in and out one sheet at a time by a flat belt conveyor 10 or a round belt conveyor 9 at the carry-in side of the entrance of the turnover device 4 or the carry-out side of the exit of the turnover device 4. The above is the description of the inversion device 4.

[0025] (Inspection and sorting device 5) Next, the inspection and sorting device 5 will be described. The inspection and sorting device 5 performs quality inspections of the seaweed A, such as inspecting for adhesion of various impurities and foreign matter such as metal, and inspecting for shape defects such as holes, chips, small tears, and other types of breaks. As the seaweed A is transported one sheet at a time, light from the light source is received by the camera through the seaweed A, and based on the inspection results, foreign objects and products with poor shape are sorted and rejected. During this time, the laver A is transported mainly by a roller conveyor 8, and in some cases by a round belt conveyor 9. The inspection and sorting device 5 is as described above.

[0026] (About the tear removal process and tear removal device 16) The tear removal process and tear removal device 16 of the present invention will be described below with reference to FIGS. First, the drying device 1 for the drying process, then the broken removal device 16 for the broken removal process, then in the example of Figure 1 (1), Figure 2 (1) and Figure 2 (3), the inversion device 4 for the inversion process is arranged as the next process, and then the wet discharge device 3 for the wet discharge process is arranged in this order. In contrast to this, in the examples shown in Figure 1 (2), Figure 2 (2) and Figure 2 (4), the wet discharge device 3 for the wet discharge process is arranged as the next process after the broken removal device 16, and then the inversion device 4 for the inversion process is arranged in this order. In both examples, the torn seaweed removing device 16 first removes torn seaweed A2 while transporting the seaweed A carried in from the drying device 1 one sheet at a time. The tearing device 16 for this tear removal process will be described below in the order of the torn seaweed A2, conveyor 17, inspection means 18, discrimination means 19, removal means 20, etc.

[0027] (Torn seaweed A 2) The torn seaweed A2 to be discarded first is seaweed A that has been torn to pieces so much that it may cause transport problems and troubles such as transport stagnation, disturbance, clogging, and bending in subsequent processes. That is, compared to the normal standard Nori A1 (see Figure 4 (1)), it consists of pieces with particularly short length dimensions, or particularly narrow width dimensions, or both (see Figure 4 (2)). In addition, seaweed A with small tears is considered to have no risk of causing transport problems or transport troubles such as transport delays, disturbances, clogging, or bending in the subsequent process, and is treated here as normal standard seaweed A1. Of course, in many cases, these are sorted and rejected as products with poor shape quality in the subsequent inspection and sorting device 5. The purpose of the tear removal device 16 of this invention is to prevent problems in transporting the seaweed A in the subsequent processes (the wet sheet discharge device 3, the inverting device 4, and the inspection and sorting device 5). On the other hand, the purpose of the inspection and sorting device 5 is to ensure the quality of the seaweed A.

[0028] (Conveyor 17 of the broken removal device 16) The conveyor 17 of the tear removal device 16 transports the seaweed A one sheet at a time, and in the example of Figure 1(1) it consists of a round belt conveyor 9, and in the example of Figure 1(2) it consists of a roller conveyor 8, but a flat belt conveyor 10 can also be used. In addition, the conveyor 17 can also be used as the conveyor on the side of the inverting device 4 or the side of the wet-drying discharge device 3 in the next process.

[0029] (Detection means 18 of the breakage removal device 16) The detection means 18 of the tear removal device 16 can detect the seaweed A being transported on the conveyor 17. The detection means 18 is equipped with sensors 29 positioned at least on the left and right sides of the seaweed A being transported by the conveyor 17, and the left and right sensors 29 use, for example, reflective photoelectric switches, and are able to detect the passage of the seaweed A being transported at each position. The left and right sensors 29 are installed at a left-right interval based on the maximum width dimension of torn seaweed A2. For example, if the width of the torn seaweed A2 is set to 100 mm or less, the left and right sensors 29 are installed on either side of the maximum width of the torn seaweed A2, with the maximum width of 100 mm in between. It should be noted that three or more sensors 29 may be installed regardless of the illustrated example, and in the case of installing a plurality of sensors, another sensor 29 is disposed between the two sensors 29 on the left and right.

[0030] (Discrimination means 19 of tear removal device 16) The determination means 19 of the tear removal device 16 determines whether or not there is torn seaweed A2 based on the detection result of the detection means 18. That is, the presence or absence of a width dimension equivalent to the torn seaweed A2 is determined based on the detection-on timing of the left and right sensors 29 of the detection means 18. At the same time, the presence or absence of a length dimension equivalent to the torn seaweed A2 is determined based on the detection-on duration of each sensor 29, including the left and right sensors 29. The torn seaweed A2 has, for example, a length of about 170 mm or less and / or a width of about 100 mm or less.

[0031] A more detailed description will be given of the determination means 19. The determination means 19 is made up of a programmable controller, a microcomputer, or the like. Then, a detection signal is input from the sensor 29 of the detecting means 18, and a determination is made based on the sequence program, and an instruction signal is sent to the damper 30 of the removing means 20 as necessary. The determination steps by the determining means 19 are as follows. First, the width dimensions are as follows: In other words, the left and right sensors 29 are set at a predetermined left-right interval (both sides of the maximum width dimension of the torn seaweed A2, for example, 100 mm), and if either one or both of the left and right sensors are not turned on for detection, the seaweed A to be detected is determined to be narrow and insufficient in width. →Therefore, the seaweed A to be detected is determined to be torn seaweed A2 based on its width, and →a collection instruction signal is sent to the removal means 20. Next, for the length dimensions: In other words, if any or all of the sensors 29, including the left and right sensors 29, are in detection on state, the detection on duration of the target seaweed A (corresponding to the length dimension of the target seaweed A) is compared with the set passing time of the torn seaweed A2 (corresponding to the maximum length dimension of the torn seaweed A2, for example, 170 mm). If the former time is shorter than the latter time, the length is determined to be insufficient and the length is short. Therefore, the target seaweed A is determined to be torn seaweed A2 in terms of length, and a collection instruction signal is sent to the removal means 20. In addition, instead of the above, the length dimension of the target seaweed A may be calculated based on the detection on duration and conveying speed of the target seaweed A, and this may be compared with the maximum length dimension of the torn seaweed A2.

[0032] (Removal means 20 of breakage removal device 16) The removing means 20 of the torn seaweed removing device 16 separates and removes torn seaweed A2 from the seaweed A conveyed one by one by the conveyor 17 based on a recovery instruction signal from the discriminating means 19. That is, in the illustrated example, the removal means 20 is composed of a switching damper 30, and is disposed, for example, after the roller 22 of the round belt conveyor 9, which is the conveyor 17 (see Figure 1(1)), or between the rollers 11 of the roller conveyor 8, which is the conveyor 17 (see Figure 1(2) and Figure 3). In the example of Figure 3, first, in the case of normal-standard seaweed A1 without any torn seaweed A2, the closed position is maintained to convey and pass it as a non-defective / accepted product (see Figures (1), (2), and (3) in Figure 3). On the other hand, if torn seaweed A2 is present, the position is switched to the open position based on a recovery instruction signal from the discrimination means 19, whereby the torn seaweed A2 is sorted out and dropped into a recovery box 31 as a defective or rejected product for recovery. The rollers 11 and 22 of the conveyor 17, which are positioned in front of the damper 30 and driven, have a driving force that forcibly pushes the torn seaweed A2 toward the collection box 31 when the damper 30 is in the open position. Incidentally, the removal means 20 may also use the damper 26 of the wet discharge device 3 instead of the damper 30 shown in FIGS. That is, in the examples shown in Figure 1 (2), Figure 2 (2) and Figure 2 (4), etc., the wet discharge device 3 for the wet discharge process is arranged as the next process immediately after the broken removal device 16 for the broken removal process. Therefore, the damper 26, which is the excluding means of the wet paper discharge device 3, may be used as the excluding means 20 of the broken paper excluding device 16 instead of the damper 30. In this case, the recovery instruction signal of the discrimination means 19 of the broken paper excluding device 16 is sent to the damper 26, which is also used as the excluding means 20. The tear removal device 16 in the tear removal process has been described above.

[0033] (effect, etc.) The device 16 for removing broken pieces of seaweed A according to the present invention is constructed as described above. (1) In the method for producing Nori A using this device 16 for removing torn pieces of Nori A, a torn piece removing process is provided between the drying process and the next process (see FIG. 2).

[0034] (2) That is, next to the drying device 1, a broken removal device 16 is additionally installed, followed by an undried discharge device 3, an inverting device 4, an inspection and sorting device 5, etc. (see Figure 2).

[0035] (3) Then, the tear removal device 16 in the tear removal process removes the torn seaweed A2 with large tears that may cause transportation problems or troubles in the subsequent process. That is, among the laver A carried in from the drying device 1, torn laver A2 that has been torn to a large extent and has a short length or / and a narrow width is rejected (see Figs. 3 and 4). In contrast, Nori A, which has tears to a degree that would not cause transportation problems or trouble in subsequent processes, is treated here as normal standard Nori A1 and is not rejected.

[0036] (4) In the torn seaweed removal device 16, the seaweed A transported one by one on the conveyor 17 is detected by the sensors 29 of the detection means 18, which are located at least on the left and right. Based on the detection results, the discrimination means 19 discriminates torn seaweed A2 and instructs the removal means 20 to remove it (see Figure 1).

[0037] (5) In this way, after the Nori A is conveyed out of the drying device 1 in the drying process, the torn Nori A2 is removed at the early stage of the process. Therefore, only the normal Nori A1 is conveyed to the next process.

[0038] (6) After the torn seaweed A2 has been removed, the seaweed A is transported one sheet at a time to the next process, which is the wet discharge device 3, the inverting device 4, and the inspection and sorting device 5, using a roller conveyor 8, a round belt conveyor 9, or a flat belt conveyor 10, and is processed during the transport process (see Figures 1 and 5).

[0039] (7) When the wet product is transported through the wet discharge device 3, the reversing device 4, and the inspection and sorting device 5, transport problems and transport troubles during the transport are prevented. During this type of transport, torn seaweed A2 is excluded from the seaweed A, and only normal-standard seaweed A1 is transported, preventing transport problems such as stagnation, disruption, separation, clogging, and bending due to insufficient dimensions. During such transportation, torn seaweed A2 that has been torn to a large extent and has a short length or / and narrow width has already been removed by the torn seaweed removal device 16, thereby avoiding transportation problems caused by insufficient dimensions. The above is the function and operation of this device.

[0040] (others) The tear removal process and tear removal device 16 of the present invention are also effective for transport between processes and devices. In other words, not only in the transport within the wet discharge device 3, the inversion device 4, and the inspection and sorting device 5 described above, but also in the transport between each device 16, 3, 4, and 5 from the broken removal device 16 to the inspection and sorting device 5, the occurrence of transport problems and transport troubles will be eliminated. The seaweed A is transported between these devices 16, 3, 4, and 5 by a roller conveyor 8, a round belt conveyor 9, or a flat belt conveyor 10. However, even when the seaweed A is transported between these devices 16, 3, 4, and 5, torn seaweed A2 has already been removed, so that the seaweed A does not get stuck, disorganized, jammed, bent, or the like. [Explanation of symbols]

[0041] A. Nori seaweed A1 standard seaweed A2 torn seaweed 1 Drying device 2 outlet 3 Undried discharge device 4. Inverter 5. Inspection and sorting equipment 6 Folding and binding device 7 Stocker 8 Roller Conveyor 9 Round Belt Conveyor 10 Flat belt conveyor 11 Roller 12 round belt 13 Flat belt 14 Drum Roller 15 Support plate 16 Breakage removal device 17 Conveyor 18 Detection methods 19 Discrimination means 20 Elimination Means 21 Plate 22 Roller 23 Roller 24 Sensor Roller 25 Drive rubber roller 26 Damper 27 Clamping roller 28 Presser roller 29 Sensors 30 Damper 31 Collection Box

Claims

1. The system comprises a tear removal device disposed next to a drying device in a seaweed production line, which removes torn seaweed that has been transported from the drying device and is either short in length or narrow in width, or short in length and narrow in width, and which is torn to pieces and may cause transport problems; and an undried discharge device disposed for the process following the tear removal device. The tear removal device includes a conveyor that transports the nori sheets one by one, a detection means that can detect the nori sheets transported by the conveyor, a discrimination means that can determine whether or not there are torn nori sheets based on the detection result of the detection means, and a removal means that can remove torn nori sheets from the nori sheets transported by the conveyor based on an instruction from the discrimination means. The non-dried seaweed discharge device detects, distinguishes, and discharges non-dried seaweed after it is discharged from the drying device. Device for removing torn seaweed.

2. The non-dried discharge device has a sensor roller, a drive rubber roller, and a damper. The sensor roller and the drive rubber roller can sandwich and pass each sheet of nori seaweed one by one, and the sensor roller can detect the dryness of the nori seaweed. Nori seaweed that is determined to be non-dried is discharged by the damper that opens and closes. The device for removing torn pieces of seaweed according to claim 1.

3. The wet discharge device has the sensor roller positioned above the drive rubber roller, The sensor roller presses the seaweed passing by using its own weight and detects the dryness of the seaweed based on the resistance value between the wound wires. The driving rubber roller has an insulation resistance of 10 MΩ or more. The device for removing torn seaweed according to claim 2.

4. The system comprises a tear removal device disposed next to a drying device in a seaweed production line, which removes torn seaweed that has been transported from the drying device and is either short in length or narrow in width, or short in length and narrow in width, and which is torn to pieces and may cause transport problems; and an undried discharge device disposed for the process following the tear removal device. The tear removal device includes a conveyor that transports the nori sheets one by one, a detection means that can detect the nori sheets transported by the conveyor, a discrimination means that can determine whether or not there are torn nori sheets based on the detection result of the detection means, and a removal means that can remove torn nori sheets from the nori sheets transported by the conveyor based on an instruction from the discrimination means. The non-dried discharge device has a sensor roller, a drive rubber roller, and a damper. The sensor roller and the drive rubber roller can sandwich and pass each sheet of nori seaweed one by one, and the sensor roller can detect the dryness of the seaweed. Nori seaweed that is determined to be non-dried is discharged by the damper that opens and closes. The sensor roller is located above the drive rubber roller and presses the seaweed passing by its own weight, and detects the dryness by the resistance value between the wound wires. The drive rubber roller has an insulation resistance of 10 MΩ or more, and detects, distinguishes, and discharges non-dried seaweed after it is discharged from the drying device. Device for removing torn seaweed.

5. The method further includes a reversing device having a drum roller, a backing plate, a sandwiching roller, and a pressure roller, the reversing device being disposed between the broken-off removal device and the non-dried discharge device or being disposed for a next process of the non-dried discharge device; The drum roller rotates to turn over the nori seaweed, and is disposed at a 45-degree angle with respect to the inlet and outlet sides of the nori seaweed. The drum roller guides the nori seaweed that is brought in one by one along its outer circumferential surface, turns it over, and turns it 90 degrees to deliver it. The lower support plate is provided at the entrance of the reversing device in a substantially triangular shape, and is configured to guide the nori seaweed on the lower support plate, turn the direction of the nori seaweed by 45 degrees, and deliver and transport the nori seaweed one by one from the carry-in side to the drum roller side. The clamping rollers are arranged at the entrance side of the inlet of the reversing device to clamp the nori seaweed between the top and bottom, and the lower side is driven to be able to transfer it to the lower receiving plate and support its positioning. The pressing roller is provided on the upper side of the drum roller so as to be able to press the seaweed onto the drum roller.

5. The device for removing torn pieces of seaweed according to claim 1.

6. The conveyor of the tear removal device is a roller conveyor made up of rollers arranged at intervals of 130 mm to 200 mm in the front-to-rear direction, and a plate for preventing the transported seaweed from falling is provided in the gap between the rollers of the roller conveyor.

5. The device for removing torn pieces of seaweed according to claim 1.

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