JP3227342U - Foreign material sorting system - Google Patents
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- 238000010257 thawing Methods 0.000 claims abstract description 29
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Abstract
【課題】個別急速冷凍品の食品に混入した異物を的確に除去できる異物選別システムを提供する。【解決手段】選別対象物をトレー上で循環移動させながら−３〜−１０℃の冷風を吹き付けて、選別対象物の表面を霜取りする霜取り装置７０と、選別対象物に対し、永久磁石の磁力によって磁性金属片を吸引して除去する磁力選別装置９０と、選別対象物を発信コイルと受信コイルの間を通過させ、受信コイルの電圧が変化したことを検知して非磁性金属片を除去する金属探知装置９１と、選別対象物のカラー画像及び近赤外画像を解析し、選別対象物との色の違い及び濃淡の違いに基づいて異物を除去する色彩選別装置８５と、Ｘ線を照射し、照射した画像に基づいてガラスを含む異物を除去するＸ線異物探知装置９５と、が備えられ、霜取り装置の下流側にその他の装置が配置され、異物選別システムが、選別対象物が解凍しない低温度領域で運転される。【選択図】図１PROBLEM TO BE SOLVED: To provide a foreign matter selection system capable of accurately removing foreign matter mixed in individually quick-frozen foods. SOLUTION: A defrosting device 70 for defrosting the surface of a sorting object by blowing cold air of -3 to -10°C while circulating the sorting object on a tray, and a magnetic force of a permanent magnet with respect to the sorting object. The magnetic force sorting device 90 that sucks and removes the magnetic metal pieces by the method, and the object to be sorted is passed between the transmitting coil and the receiving coil, and the change in the voltage of the receiving coil is detected to remove the non-magnetic metal pieces. The metal detection device 91, a color selection device 85 that analyzes the color image and the near-infrared image of the selection target, and removes foreign matter based on the difference in color and the difference in shade with the selection target, and X-ray irradiation Then, an X-ray foreign matter detection device 95 that removes foreign matter including glass based on the irradiated image is provided, and another device is arranged on the downstream side of the defroster, and the foreign matter selection system defrosts the selection target. Not operated in low temperature range. [Selection diagram] Figure 1
Description
本考案は、異物選別システムに係わり、より詳細には、個別急速冷凍（ＩＱＦ）の食品に混入した異物を除去できる異物選別システムに関する。 The present invention relates to a foreign matter sorting system, and more particularly, to a foreign matter sorting system capable of removing foreign matter mixed in individually quick frozen (IQF) foods.
特許文献１は、食品に混入した金属片を除去する磁力選別装置である。該磁力選別装置は、回転筒の内部に円柱型の永久磁石を備える。永久磁石の軸は回転筒の軸とは一致せずに配置される。回転筒に吸着した金属異物は、回転筒が回転して下向きになった時、永久磁石の磁力の影響がなくなり、下方の異物受けシュートに向かって落下する。該磁力選別装置によれば、ゴマなどの農産物や、ひじきなどの海産物に含まる金属異物を効率よく分離できる。 Patent Document 1 is a magnetic force sorting device that removes metal pieces mixed in food. The magnetic force sorting device includes a cylindrical permanent magnet inside a rotary cylinder. The axis of the permanent magnet is arranged so as not to coincide with the axis of the rotary cylinder. When the rotary cylinder rotates and faces downward, the foreign metal adsorbed on the rotary cylinder disappears from the influence of the magnetic force of the permanent magnet and falls toward the foreign matter receiving chute below. According to the magnetic force sorting apparatus, it is possible to efficiently separate metallic foreign matters contained in agricultural products such as sesame and marine products such as hijiki.
異物は磁性を有する金属（例えば鉄）とは限らないので、アルミニウムなどの金属片を除去する金属探知装置、ガラスや泥を除去するＸ線異物探知装置、及び同じ豆でも変色した豆を除く色彩選別装置が組み合わされて運用される。 Since foreign substances are not always magnetic metals (for example, iron), a metal detector that removes metal pieces such as aluminum, an X-ray foreign substance detector that removes glass and mud, and a color that removes beans that have changed color even with the same beans Sorting equipment is operated in combination.
最近では、個別急速冷凍（ＩＱＦ：Ｉｎｄｉｖｉｄｕａｌ Ｑｕｉｃｋ Ｆｒｏｚｅｎ）の食品の輸入が増えている。個別急速冷凍の食品は、食品を−８０℃〜−４０℃の温度下、数分間程度で凍結させる。食品が塊にならずに凍結される。１つ１つがバラバラなので、適量を取り出しすぐ料理に使用できる便利さがある。個別急速冷凍は、食品を水に浸けて塊状態で凍らせる場合より、重量が約３０〜４０％程度軽量にできるメリットがある。個別急速冷凍の食品に対して、混入した異物を除去する要求が高まっている。 Recently, imports of individual quick frozen (IQF) foods have been increasing. The individual quick-frozen food is obtained by freezing the food at a temperature of −80° C. to −40° C. for about several minutes. The food is frozen without clumping. Since each one is disjointed, it is convenient to take out an appropriate amount and use it for cooking immediately. The individual quick freezing has an advantage that the weight can be reduced by about 30 to 40% as compared with the case where the food is soaked in water and frozen in a lump state. There is an increasing demand for individually-frozen foods to remove foreign substances mixed therein.
本考案の目的は、個別急速冷凍の食品に混入した異物を的確に除去できる異物選別システムを提供することにある。 An object of the present invention is to provide a foreign matter selection system capable of accurately removing foreign matter mixed in individually quick-frozen foods.
本考案による異物選別システムは、個別急速冷凍（ＩＱＦ）によって凍結された乖離状態の食品を選別対象物とする異物選別システム（１００）において、前記選別対象物をトレー上で循環移動させながら−３〜−１０℃の冷風を吹き付けて、前記選別対象物の表面を霜取りする霜取り装置（７０）と、前記選別対象物に対し、永久磁石の磁力によって磁性金属片を吸引して除去する磁力選別装置（９０）と、前記選別対象物を発信コイルと受信コイルの間を通過させ、前記受信コイルの電圧が変化したことを検知して非磁性金属片を除去する金属探知装置（９１）と、前記選別対象物のカラー画像及び近赤外画像を解析し、前記選別対象物との色の違い及び濃淡の違いに基づいて異物を除去する色彩選別装置（８５）と、前記選別対象物にＸ線を照射し、照射した画像に基づいてガラスを含む異物を除去するＸ線異物探知装置（９５）と、が備えられ、前記霜取り装置（７０）の下流側に、磁力選別装置（９０）、金属探知装置（９１）、色彩選別装置（８５）及びＸ線異物探知装置（９５）が配置されると共に、前記霜取り装置（７０）、磁力選別装置（９０）、金属探知装置（９１）、色彩選別装置（８５）及びＸ線異物探知装置（９５）が、前記選別対象物が解凍しない低温度領域で運転されることを特徴とする。 The foreign matter sorting system according to the present invention is a foreign matter sorting system (100) in which a food in a diverged state frozen by individual quick freezing (IQF) is a sorting subject, while circulating the sorting subject on a tray. Defrosting device (70) for defrosting the surface of the object to be sorted by blowing cold air of -10°C, and magnetic force sorting device for removing magnetic metal pieces by suction from the object to be sorted by the magnetic force of a permanent magnet. (90), a metal detection device (91) for passing the selection target between a transmission coil and a reception coil, detecting a change in the voltage of the reception coil to remove a non-magnetic metal piece (91), A color sorting device (85) for analyzing a color image and a near-infrared image of a sorting object and removing foreign matter based on a difference in color and a difference in shade with the sorting object, and an X-ray to the sorting object. And an X-ray foreign matter detection device (95) for removing foreign matter including glass on the basis of the irradiated image, and a magnetic force sorting device (90), a metal, on the downstream side of the defrosting device (70). A detection device (91), a color selection device (85) and an X-ray foreign matter detection device (95) are arranged, and the defroster device (70), a magnetic force selection device (90), a metal detection device (91), and a color selection device. The apparatus (85) and the X-ray foreign matter detection apparatus (95) are operated in a low temperature region in which the sorting target does not thaw.
前記霜取り装置（７０）の下流側には、磁力選別装置（９０）、金属探知装置（９１）、色彩選別装置（８５）、Ｘ線異物探知装置（９５）の順番に設置されることを特徴とする。 A magnetic force sorting device (90), a metal detection device (91), a color selection device (85), and an X-ray foreign matter detection device (95) are installed in this order on the downstream side of the defroster device (70). And
前記霜取り装置（７０）と前記磁力選別装置（９０）の間に、風力選別装置（７５）と篩選別装置（８０）がさらに設けられ、前記風力選別装置（７５）と前記篩選別装置（８０）は、前記選別対象物が解凍しない低温度領域で運転されることを特徴とする。 A wind force sorter (75) and a sieve sorter (80) are further provided between the defroster (70) and the magnetic force sorter (90), and the wind sorter (75) and the sieve sorter (80) are provided. ) Is operated in a low temperature region in which the object to be sorted does not thaw.
本考案による他の異物選別システムは、個別急速冷凍（ＩＱＦ）によって凍結された乖離状態の食品を選別対象物とする異物選別システム（１００）において、前記選別対象物に対し、永久磁石の磁力によって磁性金属片を吸引して除去する磁力選別装置（９０）、発信コイルと受信コイルの間を通過させ、前記受信コイルの電圧が変化したことを検知して非磁性金属片を除去する金属探知装置（９１）、前記選別対象物のカラー画像及び近赤外画像を解析し、前記選別対象物との色の違い及び濃淡の違いに基づいて異物を除去する色彩選別装置（８５）、前記選別対象物にＸ線を照射し、照射した画像に基づいてガラスを含む異物を除去するＸ線異物探知装置（９５）、の少なくとも一の装置と、前記選別対象物をトレー上で循環移動させながら−３〜−１０℃の冷風を吹き付けて表面の霜取りを行なう霜取り装置（７０）と、を備え、前記一の装置が、前記霜取り装置（７０）の下流側に配置され、前記選別対象物が解凍しない低温度領域で運転されることを特徴とする。 Another foreign matter sorting system according to the present invention is a foreign matter sorting system (100) in which foods in a separated state frozen by individual quick freezing (IQF) are used as sorting objects. A magnetic force selection device (90) for attracting and removing magnetic metal pieces, a metal detection device for passing between a transmitting coil and a receiving coil, detecting a change in the voltage of the receiving coil, and removing non-magnetic metal pieces. (91), a color selecting device (85) for analyzing a color image and a near-infrared image of the object to be sorted, and removing foreign matter based on a difference in color and a difference in shade from the object to be sorted, the object to be sorted At least one of an X-ray foreign matter detection device (95) that irradiates an object with X-rays and removes foreign matter including glass based on the irradiated image, and while circulating the sorting target object on the tray- A defrosting device (70) for defrosting the surface by blowing cold air of 3 to -10°C, wherein the one device is arranged on the downstream side of the defrosting device (70), and the objects to be sorted are thawed. It is characterized by being operated in a low temperature range.
前記霜取り装置（７０）と前記一の装置の間に、風力選別装置（７５）と篩選別装置（８０）がさらに設けられ、前記風力選別装置（７５）と前記篩選別装置（８０）が、前記選別対象物が解凍しない低温度領域で運転されることを特徴とする。 A wind power sorter (75) and a sieve sorter (80) are further provided between the defroster (70) and the one unit, and the wind sorter (75) and the sieve sorter (80) are It is characterized in that the sorting target is operated in a low temperature region where it does not thaw.
本考案による異物選別システムによれば、個別急速冷凍（ＩＱＦ）によって凍結された乖離状態の選別対象物（２０）をトレー（５１）上で循環移動して−３〜−１０℃の冷風を吹き付け、表面の霜取りを行なう霜取り装置（７０）を上流に設けたので、選別対象物に付着した霜や氷の突起などが除去できて、見栄えが向上すると共に、下流の色彩選別装置（８５）による選別対象物の表面の色の判定を的確に行なうことができる。また、異物選別システム（１００）全体を低温度領域の環境下で動作させたので、選別対象物の解凍や霜を防止することができ、確実に異物を除去できる。 According to the foreign matter sorting system of the present invention, the sorted objects (20) in the separated state frozen by individual quick freezing (IQF) are circulated on the tray (51) and blown with cold air of -3 to -10°C. Since the defrosting device (70) for defrosting the surface is provided on the upstream side, it is possible to remove frost and ice protrusions attached to the object to be sorted to improve the appearance, and to use the downstream color sorting device (85). The color of the surface of the object to be sorted can be accurately determined. Further, since the entire foreign matter selection system (100) is operated in the environment of the low temperature region, it is possible to prevent the selection target from thawing and frost, and reliably remove the foreign matter.
霜取り装置（７０）の下流側に、各装置が、磁力選別装置（９０）、金属探知装置（９１）、色彩選別装置（８５）、Ｘ線異物探知装置（９５）の順番で各装置が設置されるので、Ｘ線異物探知装置（９５）の負荷を軽減できる。例として、赤い豆と茶色の虫を色彩選別装置で区別し虫を除去しておけば、Ｘ線異物探知装置（９５）が豆と虫のＸ線の透過量の差で虫を除去する必要がなくなり、Ｘ線異物探知装置（９５）の負荷を軽減できる。 Each device is installed on the downstream side of the defrosting device (70) in the order of a magnetic force selection device (90), a metal detection device (91), a color selection device (85), and an X-ray foreign matter detection device (95). Therefore, the load on the X-ray foreign matter detection apparatus (95) can be reduced. For example, if red beans and brown insects are distinguished by a color sorter and the insects are removed, the X-ray foreign body detection device (95) needs to remove the insects due to the difference in the X-ray transmission amount between the beans and the insects. Is eliminated, and the load on the X-ray foreign matter detection apparatus (95) can be reduced.
霜取り装置（７０）と磁力選別装置（９０）の間に、風力選別装置（７５）と篩選別装置（８０）を設けたので、ビニール片や、細かい異物、あるいは所定形状より大きな異物が除去でき、下流の選別装置の負荷を軽減できる。 Since the wind force sorter (75) and the sieve sorter (80) are provided between the defroster (70) and the magnetic separator (90), vinyl pieces, fine foreign substances, or foreign substances larger than a predetermined shape can be removed. The load on the downstream sorting device can be reduced.
本考案による他の異物選別システムによれば、Ａ：霜取り装置と磁力選別装置と金属探知装置の構成、Ｂ：霜取り装置と磁力選別装置と金属探知装置と色彩選別装置の構成、Ｃ：霜取り装置と磁力選別装置と金属探知装置と色彩選別装置とＸ線異物探知装置の構成、などを構築できる。あらかじめ、選別する異物がわかっているような場合、異物の分離と除去にかかる時間を短縮できる。 According to another foreign matter sorting system according to the present invention, A: configuration of a defroster, a magnetic sorting device, and a metal detection device, B: configuration of a defrosting device, a magnetic sorting device, a metal detection device, and a color sorting device, C: a defrosting device. It is possible to construct a magnetic force selection device, a metal detection device, a color selection device, and an X-ray foreign matter detection device. When the foreign matter to be selected is known in advance, the time required for separating and removing the foreign matter can be shortened.
霜取り装置（７０）と一の装置の間に、風力選別装置（７５）と篩選別装置（８０）を設けたので、ビニール片や、細かい異物、あるいは所定形状より大きな異物が除去でき、下流の選別装置の負荷を軽減できる。 Since the wind power sorting device (75) and the sieve sorting device (80) are provided between the defrosting device (70) and one device, vinyl pieces, fine foreign substances, or foreign substances larger than a predetermined shape can be removed, and The load on the sorting device can be reduced.
以下、添付の図面を参照して、異物選別システムを詳しく説明する。 Hereinafter, the foreign matter selection system will be described in detail with reference to the accompanying drawings.
図１は、本考案による異物選別システム１００の構成図（実施例１）である。異物選別システム１００は、霜取り装置７０、風力選別装置７５、篩選別装置８０、磁力選別装置９０、金属探知装置９１、色彩選別装置８５及びＸ線異物探知装置９５から構成される。各装置は、この順番に配置される。色彩選別装置８５が、金属探知装置９１のすぐ下流側に配置される。異物選別システム１００を構成する装置のすべてが、低温環境室内に設置される。低温環境室の外部には、冷凍機（図示せず）が設けられ、冷風を低温環境室内に送り込み、低温環境室内の空気を吸い出して、一定の温度（０℃から−１０℃の間の温度）に維持する。異物選別システム１００は、個別急速冷凍（ＩＱＦ）された食品の異物除去を行なうので、霜が付かず、氷が解けない低温環境下で運転される。 FIG. 1 is a block diagram (embodiment 1) of a foreign matter sorting system 100 according to the present invention. The foreign matter sorting system 100 includes a defrosting device 70, a wind force sorting device 75, a sieve sorting device 80, a magnetic sorting device 90, a metal detection device 91, a color sorting device 85, and an X-ray foreign matter detection device 95. The devices are arranged in this order. The color selection device 85 is arranged immediately downstream of the metal detection device 91. All of the devices that make up the foreign matter sorting system 100 are installed in a low temperature environment room. A refrigerator (not shown) is provided outside the low-temperature environment chamber to send cold air into the low-temperature environment chamber and suck out air in the low-temperature environment chamber to obtain a constant temperature (a temperature between 0°C and -10°C). ) To maintain. Since the foreign matter sorting system 100 removes foreign matter from the individually quick-frozen (IQF) food, it is operated in a low temperature environment where no frost is formed and ice is not thawed.
図２は、異物選別システム１００の各装置が除去できる異物の表である。霜取り装置７０は、個別急速冷凍された食品すなわち選別対象物２０に付着した霜を除去する。付着した氷の突起なども除去できる。選別対象物に霜が付くと白く覆われて、選別対象物の本来の色が見えなくなるため除去するものである。風力選別装置７５は、毛髪、ビニール、紙片などを風で巻き上げて除去する。篩選別装置８０は、所定サイズ以外の異物を除去する。すなわち選別対象物に混入した細かいゴミなどの異物を除去する。色彩選別装置８５は、選別対象物２０の色とは異なる色の異物を除去する。また、形状が同じで同じ色をしていても、近赤外線で他とは異なる色と判定されれば除去する。選別対象物の表面に霜が付いていると、色の判定がしにくいので、霜取り装置７０の下流に色彩選別装置８５が設置される。磁力選別装置９０は、鉄やステンレスなどの金属片を永久磁石の磁力を使って除去する。金属探知装置９１は、アルミニウムなどの磁力で吸引できない金属片を除去する。Ｘ線異物探知装置９５は、ガラスや泥などを除去する。 FIG. 2 is a table of foreign substances that can be removed by each device of the foreign substance sorting system 100. The defroster 70 removes the frost attached to the individually quick-frozen food, that is, the sorting target 20. You can also remove the ice protrusions that have adhered. When the object to be sorted is frosted, it is covered with white, and the original color of the object to be sorted becomes invisible. The wind force sorting device 75 winds and removes hair, vinyl, paper pieces, and the like. The sieve sorter 80 removes foreign matters other than a predetermined size. That is, foreign matter such as fine dust mixed in the objects to be sorted is removed. The color selection device 85 removes foreign matter having a color different from the color of the selection target 20. In addition, even if the shape is the same and the same color, it is removed if it is determined to be a different color from other infrared rays. If the surface of the object to be sorted has frost, it is difficult to determine the color, and therefore the color sorting device 85 is installed downstream of the defrosting device 70. The magnetic force sorting device 90 removes metal pieces such as iron and stainless steel using the magnetic force of a permanent magnet. The metal detection device 91 removes metal pieces such as aluminum that cannot be attracted by magnetic force. The X-ray foreign matter detection device 95 removes glass and mud.
図３は、霜取り装置７０の説明図である。図３（Ａ）に示すように、霜取り装置７０には、振動ふるい装置を使用することができる。図３（Ｂ）に示すように、内部に篩１があり、篩１を含む装置上部のトレー５１に選別対象物２０を投入する。篩１を含む装置上部のトレー５１は、下部に設置された振動発生部４により、傾斜を含む複雑な振動が行なえる。この振動により選別対象物２０は篩１の上で上下反転し、円周方向に移動する。これにより選別対象物２０が循環移動する。上方向から選別対象物２０に対し、冷風が吹き付けられる。霜取り装置７０に蓋がある場合、冷風は排出口２から排出される。排出口２からは氷片や細かい異物３（３ａ）も排出される。選別対象物２０は篩１内に残る。冷風は、霜を解かすのではなく、霜を吹き飛ばす作用を行なうもので、温度は−３℃から−１０℃と低い。 FIG. 3 is an explanatory diagram of the defroster 70. As shown in FIG. 3A, a vibration sieving device can be used for the defrosting device 70. As shown in FIG. 3(B), the sieve 1 is inside, and the sorting target 20 is placed in the tray 51 at the upper part of the apparatus including the sieve 1. The tray 51 in the upper part of the apparatus including the sieve 1 can perform complicated vibration including inclination by the vibration generating unit 4 installed in the lower part. Due to this vibration, the sorting target 20 is turned upside down on the sieve 1 and moved in the circumferential direction. As a result, the objects to be sorted 20 circulate and move. Cold air is blown onto the objects to be sorted 20 from above. When the defroster 70 has a lid, the cold air is discharged from the discharge port 2. Ice chips and fine foreign matter 3 (3a) are also discharged from the discharge port 2. The sorting target 20 remains in the sieve 1. The cold air does not thaw the frost but acts to blow the frost, and the temperature is as low as -3°C to -10°C.
図４は、風力選別装置７５の説明図である。風力選別装置７５はサイクロンで、らせん流で軽い異物３（３ｂ）を巻き上げ、上部から排出する。選別対象部２０は、フィーダ５で風力選別装置７５に投入され、自重で下方向に落下する。風力選別装置７５は、通常のサイクロン装置とは異なり、下部を末広がりとするのが良好である。これにより、一度に下方に落下したものが風で巻き上げられることがないようにできる。 FIG. 4 is an explanatory diagram of the wind force sorting device 75. The wind power sorter 75 is a cyclone that winds up the light foreign matter 3 (3b) in a spiral flow and discharges it from the upper part. The sorting target portion 20 is loaded into the wind force sorting device 75 by the feeder 5 and falls downward due to its own weight. Unlike the normal cyclone device, it is preferable that the wind power sorting device 75 has a lower end flared. As a result, it is possible to prevent the objects that have dropped downward at one time from being wound up by the wind.
図５は、篩選別装置８０の説明図である。篩選別装置８０は、コンベヤに振動が加えられることで、コンベヤ上の選別対象物２０が進行方向に進む。コンベヤには、篩７としてパンチングメタル７（７ａ）を装着しているので、細かい異物３（３ａ）が下部に落ちて分離できる。コンベヤを前後にカスケード接続し、後側のコンベアの篩の穴のサイズを選別対象物２０が落下する篩とすることにより、選別対象物２０より大きな形状の異物を分離して、除去することができる。 FIG. 5 is an explanatory diagram of the screen sorting device 80. In the screen sorting device 80, vibration is applied to the conveyor, so that the sorting target 20 on the conveyor advances in the traveling direction. Since the punching metal 7 (7a) is installed as the sieve 7 on the conveyor, the fine foreign matter 3 (3a) can fall down and be separated. By cascading the conveyors back and forth and setting the size of the sieve hole of the conveyor on the rear side as a sieve through which the objects to be sorted 20 fall, foreign matter having a shape larger than that of the objects to be sorted 20 can be separated and removed. it can.
図６は、色彩選別装置８５の説明図である。色彩選別装置８５は、４台のカラーカメラ１０と２台の近赤外線カメラ９を備える。図６は側面図で、その内の２台のカラーカメラ１０と１台の近赤外線カメラ９を示す。近赤外線用照明１１と、カラーカメラ用照明１２も備える。選別対象物２０の色と材質を見分け、不良品をイジェクター１５のエアーで吹き飛ばして分離する。２４色と近赤外線２色を判別でき、同じ丸い茶色でも、虫の茶色なのか、豆の茶色なのかを区別できる。同じ黒色でも泥か豆かを区別できる。イジェクター１５は、複数台が左右方向に隙間なく配置されており、対応する不良品を吹き飛ばすして除去する。 FIG. 6 is an explanatory diagram of the color selecting device 85. The color selection device 85 includes four color cameras 10 and two near infrared cameras 9. FIG. 6 is a side view showing two color cameras 10 and one near-infrared camera 9 among them. A near infrared ray illumination 11 and a color camera illumination 12 are also provided. The color and material of the object to be sorted 20 are distinguished, and defective products are blown off by the air of the ejector 15 to separate them. It is possible to distinguish between 24 colors and 2 near infrared rays, and even if they have the same round brown color, it can be distinguished whether it is insect brown or bean brown. You can distinguish between mud and beans even if they are the same black color. A plurality of ejectors 15 are arranged in the left-right direction without any gap, and blow out and remove corresponding defective products.
図７は、磁力選別装置９０と金属探知装置９１の説明図である。磁力選別装置９０と金属探知装置９１は、ベルトコンベアを使用しない複合機である。金属探知装置９１は、磁性体にも反応するので、感度を良好に保つため、磁力選別装置９０の下流に配置される。選別対象物２０が、ローラー形状のシェル２２を通過する時、磁性金属片（例、鉄片）の場合、磁石２１の磁力の影響を受けて飛行曲線が変わり、進行方向に設けられた選別フラップ２３の内側（図７では左側）を通過して分離される。良品は、磁力の影響を受けないので、選別フラップ２３の外側（図７では右側）を通過して落下する。磁石２１は、磁石となる円板とヨークが交互に積み重ねられたもので、各円板は、ＮとＳが向い合せとなるように積み重ねられる。長さは約５０ｃｍである。この実施例では、磁石２１は、断面がかまぼこ型で、シェル２２の外周に沿って設けられる。これにより、シェル２２の右上方向の広い範囲に磁力線を出すことができる。磁石２１は、中心軸１７にバランサと共に右上方向（図７の場合）を向くように装着されるが回転はしない。中心軸１７が回転すると、シェル２２が回転する。 FIG. 7 is an explanatory diagram of the magnetic force selection device 90 and the metal detection device 91. The magnetic force sorting device 90 and the metal detection device 91 are combined machines that do not use a belt conveyor. Since the metal detection device 91 also reacts with a magnetic substance, it is arranged downstream of the magnetic force selection device 90 in order to maintain good sensitivity. When the sorting object 20 is a magnetic metal piece (eg, iron piece) when passing through the roller-shaped shell 22, the flight curve changes due to the influence of the magnetic force of the magnet 21, and the sorting flap 23 provided in the traveling direction. The inside (left side in FIG. 7) and is separated. Since the non-defective product is not affected by the magnetic force, it passes through the outside (right side in FIG. 7) of the selection flap 23 and falls. The magnet 21 is formed by alternately stacking disks that serve as magnets and yokes, and the disks are stacked so that N and S face each other. The length is about 50 cm. In this embodiment, the magnet 21 has a semicylindrical cross section and is provided along the outer circumference of the shell 22. Thereby, the magnetic force lines can be emitted in a wide range in the upper right direction of the shell 22. The magnet 21 is attached to the central shaft 17 so as to face the upper right direction (in the case of FIG. 7) together with the balancer, but does not rotate. When the central shaft 17 rotates, the shell 22 rotates.
金属探知装置９１は、アルミニウム片などの非磁性金属片を分離する。金属探知装置９０には、発信コイルと受信コイルが設けられ、非磁性金属片が通過すると、受信コイルの電圧が変化するので、電圧の変化が一定の値を越えた時に選別フラップ２３を作動させて、傾けることにより、非磁性金属片２２を含む選別対象物２０を分離する。 The metal detection device 91 separates non-magnetic metal pieces such as aluminum pieces. The metal detection device 90 is provided with a transmission coil and a reception coil, and when a non-magnetic metal piece passes through, the voltage of the reception coil changes. Therefore, when the voltage change exceeds a certain value, the selection flap 23 is activated. Then, the sorting target 20 including the non-magnetic metal piece 22 is separated by tilting.
図８は、金属探知装置９１の信号例を示す図である。図８に示すように、磁性金属片を含む選別対象物２０を、磁力選別装置９０を通さずに通過させると、多数の信号が出て、非磁性金属片を検知する性能が低下する。選別対象物２０を、磁力選別装置９０を通過させた後に金属探知装置９１に通した場合、非磁性金属片を示す信号を的確に検知できる。 FIG. 8 is a diagram showing a signal example of the metal detection device 91. As shown in FIG. 8, when the sorting target object 20 including the magnetic metal piece is passed without passing through the magnetic force sorting device 90, a large number of signals are output and the performance of detecting the nonmagnetic metal piece is deteriorated. When the object 20 to be sorted is passed through the magnetic sorting device 90 and then through the metal detection device 91, a signal indicating a non-magnetic metal piece can be accurately detected.
図９は、Ｘ線異物探知装置９５の説明図である。フィーダ５で選別対象物２０がベルトコンベヤ２５に送り込まれる。ベルトコンベヤ上の選別対象物２０に異物がないか、Ｘ線管２４とラインセンサ２６で判定する。異物が検知された場合、選別フラップ２３を動かし、異物を異物受けボックスに分離する。Ｘ線を照射して、透過レベルをラインセンサ２６で測定する。測定値は、選別対象物又は異物の透過度であり、その強弱を解析する。透過度の高い部分は明るく、低い部分は暗く反映される。Ｘ線異物探知装置９５は、映像の透過率の高低を山の高さで表し、山の傾斜角が急な角度で立ち上がった場合、異物と検知する。 FIG. 9 is an explanatory diagram of the X-ray foreign matter detection device 95. The objects to be sorted 20 are sent to the belt conveyor 25 by the feeder 5. The X-ray tube 24 and the line sensor 26 determine whether there is any foreign matter in the sorting target 20 on the belt conveyor. When a foreign substance is detected, the sorting flap 23 is moved to separate the foreign substance into the foreign substance receiving box. The X-ray is irradiated and the transmission level is measured by the line sensor 26. The measured value is the transmittance of the object to be sorted or the foreign matter, and its strength is analyzed. Areas with high transparency are reflected brightly, and areas with low transparency are reflected darkly. The X-ray foreign matter detection device 95 represents the height of the transmittance of the image by the height of the mountain, and detects the foreign matter when the inclination angle of the mountain rises at a steep angle.
図１０は、Ｘ線異物探知装置９５の信号例を示す図である。図１０に示すように、異物を含む選別対象物２０を磁力選別装置９０と金属探知装置９１を通さずに通過させると、多数の信号が出て、Ｘ線異物探知装置の性能が低下する。選別対象物２０を磁力選別装置９０と金属探知装置９１を通した後にＸ線異物探知装置に投入すると、異物の信号を的確に検知できる。選別対象物２０の中に異物が多く含まれると、透過度の山波信号が多く検知されて、分離に影響がでる。アルミニウム、銅線、真鍮は、Ｘ線の透過率が高いので、すり抜ける可能性があり、Ｘ線異物探知装置９５のみですべてを除去することは難しい。Ｘ線異物探知装置９５を効果的に利用するには、その上流に磁力選別装置９０と金属探知装置９１を設置することが良好である。 FIG. 10 is a diagram showing a signal example of the X-ray foreign matter detection apparatus 95. As shown in FIG. 10, if the sorting target 20 including foreign matter is passed without passing through the magnetic force sorting device 90 and the metal detection device 91, a large number of signals are output and the performance of the X-ray foreign matter detection device is degraded. When the object 20 to be sorted is passed through the magnetic force sorting device 90 and the metal detection device 91 and then put into the X-ray foreign substance detection device, the signal of the foreign substance can be accurately detected. When a large amount of foreign matter is contained in the sorting target 20, many mountain wave signals of the transmittance are detected, and the separation is affected. Since aluminum, copper wire, and brass have high X-ray transmittance, they may slip through, and it is difficult to remove all of them with only the X-ray foreign matter detection device 95. In order to effectively use the X-ray foreign substance detection device 95, it is preferable to install the magnetic force selection device 90 and the metal detection device 91 upstream thereof.
本考案では、以上の磁力選別装置９０、金属探知装置９１、色彩選別装置８５、Ｘ線異物探知装置９５の中から一の装置を選択し、霜取り装置７０の下流側に配置して異物選別システムとすることができる。このようなシステムは、選別対象物２０としてのＩＱＦに混入している異物に合わせて行なうことが良好であり、これにより除去を要求される異物を効率的に除去することができる。少なくとも一の装置を選択し、つまり複数の装置を選択して組み合わせ、これを霜取り装置７０の下流側に配置して異物選別システムとすることもできる。 In the present invention, one device is selected from the magnetic force sorting device 90, the metal detection device 91, the color sorting device 85, and the X-ray foreign matter detection device 95, and is placed downstream of the defrosting device 70 to select the foreign matter sorting system. Can be It is preferable that such a system be performed in accordance with the foreign matter mixed in the IQF as the sorting target 20, and thereby the foreign matter required to be removed can be efficiently removed. It is also possible to select at least one device, that is, to select and combine a plurality of devices, and arrange the devices downstream of the defrosting device 70 to form a foreign matter sorting system.
図１１は、本考案による別の異物選別システム１００の構成図（実施例２）である。異物選別システム１００は、霜取り装置７０、風力選別装置７５、篩選別装置８０、色彩選別装置８５、磁力選別装置９０、金属探知装置９１、及びＸ線異物探知装置９５で構成され、この順番で配置される。実施例２においては、色彩選別装置８５が磁力選別装置９０の上流側に配置される。色彩選別装置８５を磁力選別装置９０の上流側に配置したので、色彩選別装置８５で選別対象物の形状判定からアルミニウム片などを除去することで、金属探知装置９１の負荷を軽減できる。色彩選別装置８５のエアーによる異物の狙い打ちによる吹き飛ばしが、金属探知装置９１の選別フラップ２３による異物除去より効率がよい。 FIG. 11 is a configuration diagram (second embodiment) of another foreign matter selection system 100 according to the present invention. The foreign matter sorting system 100 includes a defroster 70, a wind force sorter 75, a sieve sorter 80, a color sorter 85, a magnetic sorter 90, a metal detector 91, and an X-ray foreign matter detector 95, which are arranged in this order. To be done. In the second embodiment, the color selection device 85 is arranged upstream of the magnetic force selection device 90. Since the color sorting device 85 is arranged on the upstream side of the magnetic force sorting device 90, the load of the metal detection device 91 can be reduced by removing the aluminum pieces and the like from the shape determination of the sorting object by the color sorting device 85. Blowing off the foreign matter by the air of the color selecting device 85 by aiming is more efficient than removing the foreign substance by the selecting flap 23 of the metal detecting device 91.
図１２は、個別急速冷凍（ＩＱＦ）された食品の一例を示す図である。ひき肉、魚のブツ切り、カットされたホウレン草、その他の食品に使用することができる。個別急速冷凍（ＩＱＦ）された食品は食品細胞の破壊が抑えられるので、鮮度やうまみが逃げず、また１つ１つがバラバラに冷凍できるので、必要な分だけ使用できるとのメリットがある。一方、デメリットとしては霜がつきやすい。水分を含む食品の場合、冷凍の際に水分が奪われて乾燥するが、その時に空気中の水蒸気が一緒に冷やされ、食品に霜がつく。このため、本考案では、異物を除去する処理の前段で、霜取り装置７０によって霜取りを行なう。 FIG. 12: is a figure which shows an example of the foodstuff which was quick-frozen individually (IQF). It can be used in minced meat, chopped fish, cut spinach and other food products. Individual quick-frozen (IQF) foods have a merit that they can be used only as needed because the destruction of food cells is suppressed, the freshness and umami do not escape, and each can be frozen individually. On the other hand, as a demerit, frost is easily formed. In the case of food containing water, the water is taken out and dried during freezing, but at that time, water vapor in the air is also cooled and the food is frosted. Therefore, in the present invention, defrosting is performed by the defrosting device 70 before the process of removing foreign matter.
本考案は、個別急速冷凍（ＩＱＦ）の食品に混入した異物を除去できる異物選別システムとして好適である。 INDUSTRIAL APPLICABILITY The present invention is suitable as a foreign matter selection system capable of removing foreign matter mixed in individually quick frozen (IQF) foods.
１ 篩
２ 排出口
３ 異物
３ａ 細かい異物
３ｂ 軽い異物
４ 振動発生部
５ フィーダ
７ 篩
７ａ パンチングメタル
８ ベルトコンベヤ
９ 近赤外線カメラ
１０ カラーカメラ
１１ 近赤外線用照明
１２ カラーカメラ用照明
１３ エアーブロー
１４ 画像解析部
１５ イジェクター
１６ ガイド
１７ 中心軸
２０ 選別対象物
２１ 磁石
２２ シェル
２３ 選別フラップ
２４ Ｘ線管
２５ ベルトコンベヤ
２６ ラインセンサ
５１ トレー
７０ 霜取り装置
７５ 風力選別装置
８０ 篩選別装置
８５ 色彩選別装置
９０ 磁力選別装置
９１ 金属探知装置
９５ Ｘ線異物探知装置
１００ 異物選別システム
1 Sieve 2 Discharge Port 3 Foreign Material 3a Fine Foreign Material 3b Light Foreign Material 4 Vibration Generator 5 Feeder 7 Sieve 7a Punching Metal 8 Belt Conveyor 9 Near Infrared Camera 10 Color Camera 11 Near Infrared Illumination 12 Color Camera Illumination 13 Air Blow 14 Image Analysis Part 15 Ejector 16 Guide 17 Center axis 20 Sorting object 21 Magnet 22 Shell 23 Sorting flap 24 X-ray tube 25 Belt conveyor 26 Line sensor 51 Tray 70 Defroster 75 Wind power sorter 80 Sieve sorter 85 Color sorter 90 Magnetic sorter 91 metal detection device 95 X-ray foreign matter detection device 100 foreign matter selection system
Claims (5)
前記選別対象物をトレー上で循環移動させながら−３〜−１０℃の冷風を吹き付けて、前記選別対象物の表面を霜取りする霜取り装置（７０）と、
前記選別対象物に対し、永久磁石の磁力によって磁性金属片を吸引して除去する磁力選別装置（９０）と、
前記選別対象物を発信コイルと受信コイルの間を通過させ、前記受信コイルの電圧が変化したことを検知して非磁性金属片を除去する金属探知装置（９１）と、
前記選別対象物のカラー画像及び近赤外画像を解析し、前記選別対象物との色の違い及び濃淡の違いに基づいて異物を除去する色彩選別装置（８５）と、
前記選別対象物にＸ線を照射し、照射した画像に基づいてガラスを含む異物を除去するＸ線異物探知装置（９５）と、が備えられ、
前記霜取り装置（７０）の下流側に、磁力選別装置（９０）、金属探知装置（９１）、色彩選別装置（８５）及びＸ線異物探知装置（９５）が配置されると共に、前記霜取り装置（７０）、磁力選別装置（９０）、金属探知装置（９１）、色彩選別装置（８５）及びＸ線異物探知装置（９５）が、前記選別対象物が解凍しない低温度領域で運転されることを特徴とする異物選別システム。 In the foreign matter sorting system (100) that uses foods in a separated state frozen by individual quick freezing (IQF) as sorting objects,
A defrosting device (70) for defrosting the surface of the selection target by blowing cold air of -3 to -10°C while circulating and moving the selection target on the tray;
A magnetic force sorting device (90) that attracts and removes magnetic metal pieces from the sorting target by the magnetic force of a permanent magnet;
A metal detection device (91) that removes the non-magnetic metal piece by detecting that the voltage of the receiving coil has changed by passing the sorting object between the transmitting coil and the receiving coil;
A color sorting device (85) for analyzing a color image and a near-infrared image of the sorting object, and removing foreign matter based on a difference in color and a difference in shade with the sorting object;
An X-ray foreign matter detection device (95) for irradiating the sorting object with X-rays and removing foreign matter including glass based on the irradiated image;
A magnetic force sorting device (90), a metal detection device (91), a color selection device (85) and an X-ray foreign matter detection device (95) are arranged on the downstream side of the defrosting device (70), and the defrosting device ( 70), the magnetic force selection device (90), the metal detection device (91), the color selection device (85) and the X-ray foreign matter detection device (95) are operated in a low temperature region where the selection target does not thaw. Characteristic foreign material selection system.
前記選別対象物に対し、永久磁石の磁力によって磁性金属片を吸引して除去する磁力選別装置（９０）、発信コイルと受信コイルの間を通過させ、前記受信コイルの電圧が変化したことを検知して非磁性金属片を除去する金属探知装置（９１）、前記選別対象物のカラー画像及び近赤外画像を解析し、前記選別対象物との色の違い及び濃淡の違いに基づいて異物を除去する色彩選別装置（８５）、前記選別対象物にＸ線を照射し、照射した画像に基づいてガラスを含む異物を除去するＸ線異物探知装置（９５）、の少なくとも一の装置と、前記選別対象物をトレー上で循環移動させながら−３〜−１０℃の冷風を吹き付けて表面の霜取りを行なう霜取り装置（７０）と、を備え、
前記一の装置が、前記霜取り装置（７０）の下流側に配置され、前記選別対象物が解凍しない低温度領域で運転されることを特徴とする異物選別システム。 In the foreign matter sorting system (100) that uses foods in a separated state frozen by individual quick freezing (IQF) as sorting objects,
A magnetic force selection device (90) that attracts and removes magnetic metal pieces from the object to be sorted by the magnetic force of a permanent magnet, passes between the transmitting coil and the receiving coil, and detects that the voltage of the receiving coil has changed. The metal detection device (91) for removing the non-magnetic metal piece by analyzing the color image and the near-infrared image of the object to be sorted, and detects the foreign matter based on the difference in color and the difference in shade from the object to be sorted. At least one of a color selecting device (85) for removing, an X-ray foreign substance detecting device (95) for irradiating the sorting object with X-rays, and removing foreign substances including glass based on the irradiated image; A defrosting device (70) for defrosting the surface by blowing cold air of -3 to -10°C while circulating and moving the objects to be sorted on the tray;
The foreign matter sorting system, wherein the one device is arranged on the downstream side of the defrosting device (70) and is operated in a low temperature region where the sorting object does not thaw.
A wind power sorter (75) and a sieve sorter (80) are further provided between the defroster (70) and the one unit, and the wind sorter (75) and the sieve sorter (80) are The foreign matter sorting system according to claim 4, wherein the sorting object is operated in a low temperature region in which it does not thaw.
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