201200825 六、發明說明： 【發明所屬之技術領域】 奔發明係關於-面以傳送帶搬送食7 等，一面對食α啥射Α > /、疋生鮮食品 ί艮口口噴射冷氧，而連續進行 冷氣噴射機構，詳細言之 一”東處理之 度，即使身高較矮之作… 傳送…送面之高 ，戳矮之作業員亦可容易作業者。 【先前技術】 Ο Ο 先前，作切食品進行冷卻或料處理之裝置 將食时载置於傳送帶上，以料帶搬送至密閉之冷 間，於該冷卻空間内對食品嘴吹 " 冷凌處理之冷置。、、㈣續進行冷卻或 阁料氣噴射裝置之-例揭示於專利文獻下，藉由 13δ兒明專利文獻1所揭示之冷氣喷射裝置之概要。3 :’：冷氣喷射裝置!。。之外殼具備頂部壁ι〇2、底 ;、兩側部壁104、1〇5及省略圖示之兩端部壁，而 査閉空間。外殼内於水平方向配設有傳送帶108，咳 傳送帶⑽將兩端捲繞於2個輥（省略圖示）上，在搬送食品 過私中猎由冷b連續冷凉食品。外殼内有通道⑴包圍傳 送帶 108。該僂 面之結構。…為多孔性，成為使冷氣逸出傳送帶 通道⑴具有遍及面全體具有穿孔之頂部壁112。於通道 111上方，形成有以頂部壁Π7及側部壁115、116包圍之高 壓室114,從風扇118向高壓室114吹送冷氣c。冷氣c通過 丁頁。P壁112之穿孔而將傳送帶1〇8上之食品冷凌後，通過回 152164.doc 201200825 T通道113由蒸發器119及12〇予以冷卻。經冷卻之冷氣再 次以風扇118被送至高壓室114。 =，圖14係顯示先前之冷氣噴射機構之另一構成例。該 ?氣噴射機構夾著傳送帶13〇而於上方設有上部冷氣嘴射 部132，於下方設有下部冷氣喷射部14〇。上部冷氣噴射部 132包含並列於傳送帶13〇之搬送方向&之複數之喷嘴單元 134 ’於各噴嘴單元134之下面設有具有複數之漏斗形剖面 之狹縫喷嘴136。 狹縫噴嘴136之下端有狹縫狀噴射口，該狹縫狀噴射口 朝向相對於傳送帶13〇之搬送方向a之直角方向。狹縫噴嘴 =6☆由具有漏斗形剖面之加速部138，及相同剖面積且具有 正机作用之整流部丨3 9構成。從該狹縫喷嘴1 3 6喷射速度大 且左查之衝擊噴流Γ，使該衝擊噴流『衝擊在相對於食品 搬送物w之直角方向。 衝擊嘴流r與食品搬送物w碰撞後，會形成密接於食品搬 4物w表面之薄臈流t，因此可提高食品搬送物*之冷卻效 果另，下部冷氣噴射部140亦於喷嘴單元142之上面設有 與狹縫噴嘴136具有相同構成之狹縫噴嘴144。 具備狹縫嘴嘴136、144之喷嘴單元132、14〇,可於該狹 縫喷嘴間確保廣大之排氣空間e，因此可將供食品搬送物〜 之冷部後之排冷氣從排氣空間6順暢排氣。因此，與食品 搬达物W接觸丽之衝擊喷流^亦具有不會被排冷氣打亂之作 用效果。 傳送可V、要疋包含多孔性材料且具有冷氣散逸孔者，則 152164.doc 201200825 從下部冷氣喷射部14G喷射之冷氣r會從該冷氣散逸孔逸 出，與食品搬送物*直接接觸而冷卻食品搬送物W。傳送 帶如為含不鏽鋼板之鋼帶等熱傳導性優良之遮蔽體，則從 下。P冷*1喷射部14G噴射之冷氣r會冷卻傳送帶，幻專送帶 上之食品搬送物你亦會藉由傳送帶而冷卻。 先前技術文獻 專利文獻 〇 〇 尽特表2002-535596號公報 寻刊文獻 【發明内容】 發明所欲解決之問題 傳送機搬送方式之冷氣嗜射 β ,Α如 轧赁射機構，是由作業員在形成Α 郃二間之外殼外側將 7 姐-Α %得送帶上。專利文獻1所 揭不之冷氣噴射裝置由於在 所 之輥，因此必須專… 有驅動傳送帶108 …'輥之空間而提高傳送帶之搬送面。 專利文獻1所揭示之冷氣皆射 下方設有冷氣喷出邻 傳送帶108之搬送面 風賀出邛，但於傳送帶108 部之情形時，必須專 方"又有冷軋贺射 送面。 …輥之空間而更加提高傳送帶之搬 尤其在設置具備如圖 喷射部Η0時，由狹縫喷嘴144之下部冷氣 得不谁 、，縫喷嘴144之伯有空間較大，因此不 侍不進而提高傳送帶之因此不 &宫度a冰 馬增多食品處理量，妗桩 取寬廣之傳送帶之搬送面寬声故知 之搬送面配置多數個“需要騎於傳送帶 之高度距離二：物之作業。因此，若該搬送面 上，則身高較矮之作業員的手將無 J52164.doc 201200825 法伸到搬送面之中央區域，使得作業效率變差。因此，需 要將搬送面控制在距離地面7〇〜8〇 cm左右 本發明鑑於該先前技術問題，其目的係於傳送帶上载置 食品搬送物並進行冷卻或冷凌處理之冷氣嗔射機構中，可 Γ咸低被冷卻物之冷卻效果而降低傳送帶之搬送面，以提 咼作業員之作業性。 解決問題之技術手段 為解決該問題，本發明之冷氣嗜 孔噴射機構係對密閉空間内 無冷氣散逸孔之金屬帶上所載 戰置之β σο搬迭物噴射冷氣而 連續進行冷卻或冷凍處理者，盆 邱甘曰中，、備.上部冷氣噴射 口P ’其具備配置於金屬帶上方 具有漏斗形剖面之多數個 狹縫喷嘴，且從金屬帶上方 ^...a 帀上方將冷虱之衝擊噴流喷吹至食品 搬k物，及下部冷氣噴射部’ 1 Ό、備配置於金屬帶下方、 匕3牙設有多數個喷射孔之 ^ ^ —贺射面之冷氣喷出部，且 傳送"'下方將冷氣流噴吹至傳送帶之下面。 本發明裝置中，由於w h Α τ ^ Ύ ^ ^ ^^ 、匕3平坦噴射面之冷氣噴出部構 成下4冷氣噴射部，故可 和目小下4冷氣噴射部之設置空 間。因此’可將傳送帶 ， F 搬迗面設於低位置。另，本發明 表置所使用之傳送帶传 _^ , ，、… >虱政逸孔之金屬帶，該金屬帶 可糟由從下部冷氣噴射 ▼ 八屈嫌 ' 贺射之冷氣予以冷卻，而經冷卻 至▼可直接接觸冷卻食品搬送物。 =下部冷氣機構無需特別使用如狹缝喷嘴之冷氣到 下部冷氣切部中不=、此，如本發明所述，即使於 吏用漏斗形狹縫喷嘴，冷卻效果亦不 152164.doc 201200825 會減低。另一1 " 面’本發明中於上部冷氣喷射部中使用狹 縫喷嘴’因此可高度維持食品搬送物之冷卻效果。 如此，本發明裝置可在不降低食品搬送物之冷卻效果之 情況下將傳送帶之搬送面設定於低位置，因此即使是身高 較矮之作業員亦可維持高作業效率。 又於下部冷氣冷射部中不使用複雜結構之狹縫喷嘴， Ο 〇 清洗時密閉空間之清洗作業變容易，清洗水之排出亦 μ暢，因此可提高清潔性。 本發明裝置中，只要 w 、要以將則述平坦噴射面為上面之箱狀 罩構成下部冷氣嘴射部，則 j 了更加确化下部冷氣喷射部之 6户二知冷氣之到達距離理論上為噴射口之口徑之 以1二該平坦噴射面之嘴射口之口徑設為20麵 果。 我 了棱回對金屬帶之冷卻效 再者，若以衝壓金屬板構成 容易，而可降低加卫成本。噴射面，則加工更加變 本發明裝置中，較佳以如 送帶，使該金屬帶之回路導出::切成：金屬帶為環狀傳 於密閉空間之下方，：二3逑密閉空間外，並配設 使金屬帶捲繞… 間之外部設置旋轉滾筒，以 帶。如此，由於將金㈣ 达傅送 可將全屬帶之丰玖审 ；费閉空間外，因此 將孟屬帶之去路更加配置於較低位置。 又，由於將前述旋轉滾筒配置 滚筲夕？5?恶Ρ日 γ 3二間夕卜’因此旋轉 之配置空間不受制約。因此，旋轉滚筒可大徑化，： 152164.doc 201200825 此可降低施加於金屬帶之彎曲負載，故可緩和金屬帶之金 屬疲勞。因此，金屬帶可薄膜化因此可降低傳送帶體之熱 負荷且可降低傳送帶之成本。又，由於將回路設於冷卻 空間外’因此設於回路之防蜿蜒裝置不會結冰，可維持原 來之功能。 本土月裝i中’幸交佳為下部冷氣噴射部係以將前述平坦 噴射面為上面之箱狀罩構成，於該箱狀罩之—側面設置冷 軋導入口 ’使該平坦噴射面從設有冷氣導入口之側面向另 -側面於下方傾斜，以獲得較大之該冷氣導入口側之空間 剖面積。 如此，藉由使箱狀罩内之空間剖面積為冷氣導入口側般 大，考慮到冷氣之壓損，可使從平坦噴射面之喷射口噴射 之冷氣速度均:化，而可使金屬帶之寬度方向上之冷卻效 :均-。X，藉由使平坦噴射面傾斜，於清洗時清洗水不 積在2坦噴射面，而可沿著平坦噴射面向❹側流出。 因此’岔閉空間之清潔性提高。 若除了前述構成以外，並設置可開閉箱狀罩之傾斜下端 側側面之門，則更易從箱狀罩内排出太_ 閉空間之清潔性進而提高。 月/ 7曰必使付岔 發明之效果 置’在對密閉空間内無冷氣散逸孔之金屬 = 食品搬送物噴射冷氣，而連續進行冷㈣ 冷凍處理之冷氣噴射機構中，呈 一 具備配置於合屬俄μ 士 ' .上部冷氣喷射部，其 …^ 、具有漏斗形剖面之多數個狹縫噴 152164.doc 201200825 嘴，且從金屬帶之上方將 ▽氣之衝擊噴流喷 舻 物；及下部冷氣喷射部，旦且借㈣ "οσΜιέ 人0 ^ 、備配置於金屬帶之下方，包 ^:有多數個噴射孔之平坦噴射面之冷氣^部，且從 方將冷氣流喷吹到傳送帶之下面，因此可將搬送 食品搬送物之金屬帶之搬逆 、 ^ 面配置於下方。藉此，不會損 及食品搬送物之冷卻或冷凍效 、 』徒间於該搬送面上 載置食an搬送物之作業員之作業性。201200825 VI. Description of the invention: [Technical field to which the invention belongs] The invention of the invention is carried out on the conveyor belt 7 on the conveyor belt, and the food is sprayed on the conveyor belt, and the raw food is sprayed with cold oxygen. Continuously performing the cold air injection mechanism, in detail, one of the "east processing degrees, even if the height is short... The transmission is high, and the operator who is short is easy to work. [Prior Art] Ο 先前 Previously, The device for cooling food or material processing is placed on the conveyor belt during food feeding, and is transported to the sealed cold room by the material belt, and the cold mouth of the food mouth is cooled in the cooling space. (4) Continued An example of a cold air injection device disclosed in Patent Document 1 is disclosed in the patent document. 3: ': Cold air injection device! The outer casing has a top wall ι 〇2, bottom; both side walls 104, 1〇5 and the end walls of the illustration are omitted, and the space is checked. A conveyor belt 108 is disposed in the horizontal direction in the casing, and the cough conveyor belt (10) is wound at both ends. 2 rolls (not shown), The food is over-private and hunted by a cold b continuous cold food. The outer casing has a passage (1) surrounding the conveyor belt 108. The structure of the kneading surface is...porous, so that the cold air escapes the conveyor belt passage (1) has a perforated top throughout the entire surface Wall 112. Above the passage 111, a high pressure chamber 114 surrounded by a top wall 7 and side walls 115, 116 is formed, and cold air c is blown from the fan 118 to the high pressure chamber 114. The cold air c passes through the slab. After the food on the conveyor belt 1〇8 is cold-cooled, it is cooled by the evaporators 119 and 12〇 by returning 152164.doc 201200825 T channel 113. The cooled cold air is again sent to the high pressure chamber 114 by the fan 118. =, Fig. 14 Another configuration example of the conventional cold air injection mechanism is shown. The air injection mechanism is provided with an upper cold air nozzle portion 132 above the conveyor belt 13 and a lower cold air injection portion 14A at the lower portion. 132 includes a plurality of nozzle units 134' juxtaposed in the conveying direction of the conveyor belt 13 and a plurality of nozzle nozzles 136 having a plurality of funnel-shaped cross sections below the nozzle units 134. Below the slit nozzles 136 There is a slit-shaped injection port that faces the direction perpendicular to the conveyance direction a of the conveyor belt 13. The slit nozzle = 6☆ is composed of an acceleration portion 138 having a funnel-shaped cross section, and the same sectional area and has a positive The rectifying unit 丨39 is configured to operate from the slit nozzle 136. The jetting velocity of the slit nozzle 136 is large, and the impinging jet is slid to the right. The impact jet is “impacted in a direction perpendicular to the food conveying object w.” After colliding with the food conveying material w, a thin turbulent flow t which is in close contact with the surface of the food conveying material w is formed, so that the cooling effect of the food conveying material* can be improved, and the lower cold air spraying portion 140 is also provided on the upper surface of the nozzle unit 142. The slit nozzle 144 has the same configuration as the slit nozzle 136. The nozzle units 132 and 14B having the slit nozzles 136 and 144 can ensure a large exhaust space e between the slit nozzles, so that the cold air after the cold portion for the food conveyance can be taken out from the exhaust space. 6 smooth exhaust. Therefore, the impact jet which is in contact with the food conveyance W also has an effect of not being disturbed by the exhaust air. If the conveyance V can contain a porous material and has a cold air dissipation hole, the cold air r sprayed from the lower cold air injection portion 14G will escape from the cold air dissipation hole and be cooled in direct contact with the food conveyance*. Food conveyor W. If the conveyor belt is a shield with excellent thermal conductivity such as a steel strip containing a stainless steel plate, it will be removed from below. The cold air r sprayed by the P cold*1 spray unit 14G cools the conveyor belt, and the food transport on the magic belt is also cooled by the conveyor belt. The prior art document patent document 〇〇 特 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 2002 传送 传送 传送 传送 传送 传送 传送 传送 传送 传送 传送 传送 传送 传送 传送 传送Form the outer side of the outer shell of the Α 郃 将 将 7 7 7 7 7 7 7 7 7 。 。 。 Since the cold air injection device disclosed in Patent Document 1 is a roller, it is necessary to drive the space of the conveyor belt 108 ... to increase the conveying surface of the conveyor belt. The cold air jet disclosed in Patent Document 1 is provided with a cooling air sprayed on the conveying surface of the adjacent conveyor belt 108. However, in the case of the belt 108, it is necessary to have a special cold-rolled side. In the space of the roller, the conveyor belt is further increased. Especially when the spray portion Η0 is provided, the cold air is not generated by the lower portion of the slit nozzle 144, and the space of the slit nozzle 144 is large, so that the conveyor is not provided. Therefore, the conveyor belt does not increase the amount of food processing, and the transport surface of the wide belt is wide. It is known that the transport surface is configured with a plurality of "higher distances required to ride on the conveyor belt: the operation of the object. Therefore, On the transport surface, the operator's hand with a shorter height will not reach the central area of the transport surface without the J52164.doc 201200825 method, which will make the work efficiency worse. Therefore, it is necessary to control the transport surface at a distance of 7〇8 from the ground. In view of the prior art problems, the present invention is directed to a cold air squirting mechanism in which a food conveying object is placed on a conveyor belt and subjected to cooling or cold processing, thereby reducing the cooling effect of the low-cooled object and reducing the conveyance of the conveyor belt. To improve the workability of the operator. Technical means for solving the problem In order to solve the problem, the cold air mesothiole mechanism of the present invention is not in the closed space. The cold air dissipating hole is placed on the metal belt of the air-dissipating hole. The σο 搬 搬 搬 搬 搬 搬 搬 喷射 喷射 喷射 喷射 连续 连续 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 上部 上部 上部 上部 上部 上部 上部 上部 上部 上部a plurality of slit nozzles having a funnel-shaped cross section, and blowing a cold jet impact jet from above the metal strip to the food moving object, and the lower cold air jetting portion '1 Ό, prepared in the metal The bottom belt, the 匕3 teeth are provided with a plurality of injection holes, and the cooling air ejection portion of the surface is sprayed, and the cold air flow is blown under the conveyor belt. In the device of the present invention, due to wh Α τ ^ Ύ ^ ^ ^^, 匕3 The cold air discharge part of the flat spray surface constitutes the lower 4 cold air injection part, so that the installation space of the 4 cold air injection parts can be made smaller. Therefore, the conveyor belt and the F moving surface can be set low. In addition, the conveyor belt used in the present invention is _^, ,, ... > the metal belt of the 虱政逸孔, which can be cooled by the cold air from the lower part of the air jet And after cooling to ▼, you can directly contact the cooling food. The product is transported. = The lower air-conditioning mechanism does not need to use special cold air such as a slit nozzle to the lower cold air cut portion. Therefore, as described in the present invention, even if the funnel-shaped slit nozzle is used, the cooling effect is not 152164. Doc 201200825 will be reduced. Another 1 " surface 'In the present invention, the slit nozzle is used in the upper cold air injection portion', so that the cooling effect of the food conveying material can be highly maintained. Thus, the device of the present invention can not reduce the food conveying material. In the case of the cooling effect, the conveyor surface of the conveyor belt is set to a low position, so that even a worker with a low height can maintain high work efficiency. In the lower air-cooling portion, a slit nozzle of a complicated structure is not used, Ο 〇 The cleaning operation in the closed space during cleaning becomes easy, and the discharge of the washing water is also smooth, so that the cleaning property can be improved. In the apparatus of the present invention, as long as w is to form the lower cold air nozzle portion by the box-shaped cover having the flat spray surface as the upper surface, the distance between the six air conditioners of the lower cold air injection portion is further confirmed. The diameter of the nozzle of the flat ejection surface is set to 20 for the diameter of the ejection opening. I have a cooling effect on the metal strip. In addition, it is easy to form a stamped metal sheet, which can reduce the cost of reinforcement. In the device of the invention, the processing is further changed, such as feeding the belt, so that the circuit of the metal strip is led out: cut into: the metal belt is ring-shaped and transmitted under the confined space, and the outer space is two or three inches. And equipped with a metal belt to wrap around... In this way, because the gold (four) Duffy can be sent to the full genus, the fee is closed, so the path of the Meng genus is further placed in the lower position. Also, because the rotating drum arrangement is rolled over? 5? Ρ γ 3 二 二 ’ 因此 因此 因此 因此 因此 因此 因此 因此 因此 因此 因此 因此 因此Therefore, the rotating drum can be made larger in diameter: 152164.doc 201200825 This reduces the bending load applied to the metal strip, so that the metal fatigue of the metal strip can be alleviated. Therefore, the metal strip can be thinned so that the heat load of the belt body can be reduced and the cost of the belt can be reduced. Further, since the circuit is disposed outside the cooling space, the anti-snag device provided in the circuit does not freeze, and the original function can be maintained. In the local monthly installation i, the second cold air injection unit is configured to form the flat spray surface as the upper box cover, and a cold rolling introduction port is provided on the side of the box cover to make the flat spray surface The side of the cold air introduction port is inclined downward from the other side to obtain a larger spatial sectional area of the cold air introduction port side. In this way, by making the space sectional area in the box-shaped cover as large as the cold air introduction port side, in consideration of the pressure loss of the cold air, the cooling air velocity ejected from the ejection opening of the flat ejection surface can be made uniform, and the metal strip can be made. Cooling effect in the width direction: both -. X, by tilting the flat ejection surface, the cleaning water does not accumulate on the two-spray surface during cleaning, and can flow out along the flat ejection surface. Therefore, the cleanliness of the closed space is improved. Further, in addition to the above-described configuration, the door on the side of the inclined lower end side of the box-shaped cover can be opened and closed, and the cleanliness of the too-closed space can be more easily removed from the inside of the box-shaped cover. Month / 7曰 will make the effect of the invention to be 'in the cold space without the air-conditioning hole in the confined space = the food conveying object is injected with cold air, and the cold air injection mechanism that continuously performs the cold (4) freezing process is provided in a combination It is a Russian cold air injection part, which has a large number of slits with a funnel-shaped section, 152164.doc 201200825, and a jet of sneeze from the top of the metal belt; and the lower air-conditioning The ejector is made up of (4) "οσΜιέ人0 ^, and is placed under the metal belt, including: the cold air part of the flat spray surface of the plurality of injection holes, and the cold air flow is blown onto the conveyor belt from the side In the following, the metal strip for conveying the food conveyance can be placed in the reverse direction. Thereby, the workability of the worker who carries the food conveyance on the conveyance surface is not impaired by the cooling or freezing effect of the food conveyance.
又，由於可簡化下部冷氣喷射 札貫射邛之構成，因此於外殼内 清洗時，從密閉空間排出清 Ώ π洗水變谷易，而可提高密閉空 間之清潔性。 【實施方式】 以下’使用圖中所示之實施形態詳細說明本發明。惟本 實施形態所記載之構成零件之尺寸、材f、形狀、其相對 配置等若無特別特定之記載，則非將本發明僅限於其者。 基於圖1〜圖12說明本發明之冷氣喷射機構之一實施形 態。圖1所示之本實施形態之冷氣噴射機構1〇中，搬送食 品搬送物w之金屬帶12由無冷氣散逸孔且熱傳導性良好: 不鏽鋼製薄板構成》金屬帶12被支撐於架設在金屬帶丨之之 寬度方向上之支撐桿14上，且由後述之旋轉滾筒予以驅動 而向箭頭a方向移動。 於金屬帶12上方，設有以沿著金屬帶12之搬送方向&並 列之夕數個喷嘴單元18構成之上部冷氣喷射部16 ^噴嘴單 元18經由凸緣18a而載置於並設於金屬帶12兩側之支樓框 架22及24上。噴嘴單元18具有與圖14圖示之喷嘴單元134 152164.doc 201200825 相同之構成’於其下面一體形成有4個具有漏斗形剖面之 狹縫喷嘴20。該噴嘴單元18於金屬帶12之搬送方向&上並 列有多數個。 於金屬帶12下方設有下部冷氣喷射部26。下部冷氣喷射 部26以箱狀罩28構成。於箱狀罩28之一側面（圖i中左側）設 有冷氣流入口 ’箱狀罩28之上面28a形成為平坦面，以穿 設有多數個圓形穿孔29之衝壓金屬板構成。穿孔29之直徑 例如具有25職之大口徑。上面28a朝向與前述冷氣流入口 遠離側之側方（圖1中右側）於下方傾斜。 ”亥構成中，從上部冷氣喷射部丨6之狹縫噴嘴之喷射口 向食品搬送物w喷射狹縫狀之衝擊噴流1_。另一方面，從下 2冷氣喷射部26之穿孔29向金屬帶12下面噴射冷氣c。如 前述，從狹縫喷嘴20噴射之衝擊噴流[速度較大且到達距 離較長。亚且，藉由形成於狹縫喷嘴間之廣大排氣空間 e’使供食品搬送物蚊冷卻後之冷氣順暢排$，因此不會 打亂衝擊噴流r。因此冷卻效果大。 ，《下部冷卻噴射⑽之穿孔29噴射之冷氣c之目έ :冷卻金屬帶12’以促進金屬帶12與食品搬送物你之接角 =1此即使無上部冷氣切_般長之冷氣e之⑴ 射邛Ιόΐ"1充刀冷部金屬可12。因此’藉由自上部冷氣^ 。〃下料氣喷射部26之冷氣噴射 搬送物w之冷卻效果。 充刀達成艮。 w *»、、而 χΟ 广邵冷氣g射部 今罟介„ ——，心貝蚵邵16般j 。又置工間，因此可降低金屬帶12之 门及 因此，由作| 152164.doc -10- 201200825 ，行將食品搬送物w載置於金屬帶12之作業時，即使是身 同較矮之作業員，作業效率亦不會減低。又，由於箱狀草 之上面28a向金屬γ 12之寬度方向傾斜，因此清洗時清 >先水不會積在上面28a，可促進清洗水之排出。 根據本實施形態，由於穿孔29之直徑大如25 —，因 * &可確保充分長之冷氣。之到達距離。因此，即使使上面 2⑽斜，且傾斜下端側與傳送帶下面略為分離，冷卻效 〇 I亦不會減低。又’可使上面28a傾斜而獲得寬廣之冷氣 流入口側之冷氣流入空間，因此可使從穿孔29喷射之冷氣 e之速度與金屬帶12之寬度方向均_。因此可使冷卻效果 在金屬帶12之寬度方向上均等。 接著’基於囷2〜圖9說明應用冷氣喷射機構10之致冷裝 置30之構成。首先’利用圖2〜圖4說明致冷裝置之全體 構成致冷裝置3〇以形成由斷熱壁包圍之橫長之冷卻空間 之外殼32構成。另，圖2中，已將外殼32之前方側壁及上 〇 部壁去除，以便可觀察到内部結構。X，圖3中亦基於相 同目的而去除外殼32之左半部份之前方側壁。 外殼32除設於入口壁32c之入口開口 ”，及設於出口壁 32d之出口開口 36外，為密閉結構。於前方壁32&上，於外 /V又32之長度方向上配設有複數個監視用窗3 8。於後方壁 32b上5又有複數個開閉門4〇，以便作業員可進入外殼 内。 外；v又32之上部壁326為密閉壁，其中貫穿有從省略圖示 之、令、東機單元向空氣冷卻器供給冷媒或鹽水之供給管、 152164.doc 201200825 及排出冷媒或鹽水之排出管44。外殼32之底部壁32f藉由 腳46將其隔以間隔而支撐於地面？上。又，如圖5所示，底 部壁32f朝向後方壁32b側於下方傾斜。於外殼32内之下部 區域，設有將食品搬送物w搬送至外殼32内之搬送裴置 50。搬送裝置50由環狀金屬帶12，及驅動該金屬帶12之旋 轉滚筒54及56構成。 金屬帶12配置於水平方向，於入口壁32c之外侧捲繞於 從動滾筒54上，於出口壁32d外侧，捲繞於驅動滾筒兄 上。金屬帶12之去路12a其搬送面配置於水平方向，且從 入口開口 34及出口開口 36貫穿配置於外殼32内，於箭頭& 方向移動。回路12b配置於底部壁32f下方之外殼32外。 如圖5所示，外殼32内部，藉由隔壁58及6〇而分隔成上 部負壓室62、下部正壓室64及位於該等側方之維護空間 66 °上部負壓室62中’於隔壁58之上面固定有空氣冷卻器 68。空氣冷卻器68經由前述給排氣管42及44而與配設於與 外殼32分開位置之省略圖示之冷凍機單元連接。 又，於隔壁58上形成有圓形之通風路58a。於該通風路 58a上安|有圓筒形之罩7() ’於罩7()内設有軸流風扇以 其驅動馬達74。如圖3及圖4所示，空氣冷卻器68於外殼Μ 之長度方向上設有2個單元，軸流風扇72於外殼Μ之長度 方向亡母1單元設有4台。並且’以空氣冷卻器68冷卻之庫 内空氣藉由軸流風扇72而從通風路SSa向下部正壓室以吹 送。因此，上部負壓室62成負壓氛圍。 於水平方向配置有金屬 如圖5所示，於下部正壓室中 152164.doc 201200825 帶12之去路12a。去路12a藉由設於寬度方向之複數個支撐 桿14而支撐在特定高度。於金屬帶12之去路i2a之兩側上 方，於外设32之長度方向上配設有支撐框架22及24。於去 路12a之上方，沿著去路丨2a設有上部冷氣噴射部16。 於去路12a之下方，沿著去路12a設有下部冷氣噴射部 2 6。下部冷氣噴射部2 6由一側具有冷氣流入口 2 8 b之箱狀 外殼28構成。外殼28固定於底部壁32f之上面，如前述， 〇 該上面28a形成為平坦面且穿設有多數個圓形穿孔29。上 面28a朝向維護空間&側於下方傾斜。又，外殼μ之底部 壁32f亦朝向維護空間66側於下方傾斜。 於相狀外设28之維遂空間66側之側面上設有開閉門 28c。於開閉門28c之上端設有凸緣，清洗時由作業員於上 下方向使其滑動，可開放該側面。 接著，藉由圖6及圖7說明搬送裝置5〇之入口壁32c側之 構成。框架82與外殼32之入口壁32c連接，且藉由腳46予 Ο 以支撐於水平方向。圓筒形從動滾筒54配置於水平方向’ 於從動滾筒54上捲繞有金屬帶12。從動滾筒54之表面被覆 有橡膠材。從動滾筒54之迴轉軸54a之兩端利用軸承84可 迴轉地予以支撐。 軸承84於箭頭a或b方向可滑動地被支樓於框架82上，且 經由線圈彈簧86安裝於框架82上。藉此，從動滾筒54可向 箭頭a或b方向移動，可調整金屬帶12之張力。於框架82間 架设有補強桿gg ’及支撐金屬帶12之回路i2b之支樓桿90 及引導回路12b之引導桿92。 152164.doc 13 201200825 接著，利用圖8及圖9說明搬送裝置5〇之出口壁32d側之 構成。圖8及圖9中，於出口壁32d固定有框架94，於框架 94上經由軸承96可迴轉地支撐有驅動滾筒％之迴轉軸 56a。又，於框架94上安裝有驅動迴轉軸56a之驅動馬達 98°於驅動滾筒56上捲繞有金屬帶12，藉由驅動滾筒56之 迴轉使金屬帶12向箭頭方向移動。與從動滾筒⑷目 同，於驅動滾筒56之外周面被覆有橡膠膜。 又於構成金屬帶12之不鏽鋼板之一側緣之背面，硫化 接合有具有錐形之梯形刮面之橡膠突起13。另一方面於 驅動滾筒56之一側端面i ’接合有外周面上具有凹部w 之π輪87。该凹部87a與驅動滾筒56之端面上，形成有與 橡膠突起13相同剖面形狀之凹槽。在金屬帶12行進中，橡 膠突起13會與該凹槽嵌合且於該凹槽内滑動。 用以形成凹部87a之滑輪87亦安裝於圖6、7所示之從動 滾筒54之一側端面上。以橡膠突起13及滑輪87構成防蜿蜒 裝置88。藉由一面使橡膠突起13遊嵌於凹部並使傳送 帶12行進，從而可防止傳送帶12之蜿蜒。 該構成中，入口壁32c侧之搬送裝置5〇中，作業員〇將食 品搬送物w載置於金屬帶12之去路12a之帶面上。載置於該 帶面之食品搬送物w從入口開口 34被搬送至外殼32内之下 部正壓室64。 另一方面，在外殼32内，空氣冷卻器68及軸流風扇”運 轉中，由空氣冷卻器68予以冷卻之冷氣c藉由軸流風扇U 通過通風路58a被送至下部正壓室64。 152164.doc 14- 201200825 在下部正壓室64中，從去路12a之上下兩側向食品搬送 物w喷射冷氣在上部冷氣噴射部16中，從狹縫噴嘴2〇之 狹縫狀噴射口向相對於食品搬送物w之直角方向嗔射狹縫 狀之衝擊噴流r。如前述，狹縫噴嘴20具有加速冷氣c之錐 形剖面之加速部，及整流經加速之冷氣c之整流部，可噴 出到達距離長之噴流。從狹縫喷嘴20噴出之衝擊噴流1>會 藉由附壁效應而形成密接於食品搬送物界表面之冷氣流， 0 因此可提高冷卻效果。 又，由於可獲得寬廣之形成於狹縫噴嘴20間之排氣空間 e ’因此可將供冷卻後之冷氣流暢地從t品搬送物评排出， 因此該排冷氣不會打亂衝擊喷流r。 另，作為比較例，於圖15中顯示具有矩形噴嘴部152、 且於以前端平坦噴射面154上設置穿孔而成之上部冷氣噴 射部150構成之上部冷氣噴射部。根據該構成，若無法採 取相當大之矩形喷嘴部152之高度h及矩形噴嘴部152間之 〇 間距P ’則無法充分確保排氣空間e。 因此，會有排冷氣殘留於衝擊喷流1>周邊而打亂衝擊噴 流r之虞。相反的，若採取相當大之間距？，則衝擊喷流^無 法喷吹至食品搬送物…之區域將會增加，使得冷卻效果降 低。因此，根據該比較例，可知無法獲得充分之冷卻效 果。 7夕 下部冷氣噴射部26中，冷氣c從設於箱狀罩28上面之穿 孔29向去路12a之下面噴射。由於穿孔“為大徑因此到 達距離變長’且上面28a傾斜’即使與傳送帶下面之距離 152164.doc 15 201200825 較開冷氣C亦可到達去路i2a之下面。因此，金屬帶之 冷卻效果不會降低。 根據本實施形態，冷氣喷射機構！ 〇中，可高度維持食品 搬送物w之冷卻效果，且可降低金屬帶12之設置高度。再 者由於將彳之動滾筒54、驅動滾筒％及金屬帶12之回路 12b配置於外殼32外，因此可充分降低金屬帶12之設置高 度。因此，即使身高較矮之作業員〇亦可容易進行食品搬 送物w之搬送作業。 又，由於將從動滾筒54及驅動滾筒56配置於外殼Μ外， 因此該等滾筒可大徑化。因.此，可減輕施加於金屬帶12之 彎曲負載，故可緩和金屬帶12之金屬疲勞。因此，金屬帶 可薄片化而可降低傳送帶成本。例如，根據本實施开》 態，可將構成金屬帶12之不鏽鋼板之厚度設為〇6mm。 又，由於相狀罩28之上面28a及外殼32之底部壁32f向後 方壁32b側傾斜’因此清洗時清洗水不會積於上面施及底 部壁32f上，且箱狀罩28之傾斜下降側側壁以可上下滑動 之門28c構成，因此於清洗時由作業員打開門28c，可容易 地自箱狀罩28中將清洗水排出。 又，穿設於箱狀罩28之上面28a之穿孔29之直徑為乃 ηπηφ之大，因此冷氣到達距離較大。因此即使穿孔 29與傳送帶下面之間隔變大，亦可高度維持金屬㈣之冷 卻效果。因此，即使使上面28a傾斜而使得傳送帶下面與 上面2 8 a之間隔變大，冷卻效果亦不會減低。 圖1 0係顯示針對冷氣噴出口 7 〇至傳送帶下面之高度與對 152164.doc -16- 201200825 金屬帶之熱傳遞率之關係’顯示以本實施形態之裝置所作 之實驗結果之關係之線圖。根據本實施形態，由於箱狀罩 28之上面28a向傳送帶寬度方向傾斜，因此穿孔29至傳送 帶下面之間隔在75〜95 mm間變化。如圖所示，可知即使 穿孔29與傳送帶下面間之間隔改變，熱傳遞率亦無太大改 變。因此，如本實施形態所述，可知即使使上面28a傾 斜’金屬帶12之冷卻效果亦幾乎不會減低。 圖11A係顯示本貫施形態之箱狀罩2 § ^由於該箱狀罩2 8 之上面28a向金屬帶12之寬度方向傾斜，因此穿孔μ至金 屬帶12之間隔仏在75〜95 mm間變化。圓形穿孔29之直徑 為25 mmcj)，各穿孔29以相互成正三角形之方式配置。各 穿孔29間之間距p〗為1〇〇 mm。 另一方面，圖11B係作為比較例顯示之構成。於箱狀罩Further, since the configuration of the lower cold air jet smear can be simplified, when the inside of the casing is cleaned, it is easy to discharge the clean π washing water from the sealed space, and the cleanliness of the sealed space can be improved. [Embodiment] Hereinafter, the present invention will be described in detail using the embodiments shown in the drawings. However, the dimensions, materials f, shapes, relative arrangements, and the like of the components described in the embodiments are not intended to limit the invention unless otherwise specified. An embodiment of the cold air injection mechanism of the present invention will be described based on Figs. In the cold air injection mechanism 1 of the embodiment shown in Fig. 1, the metal strip 12 for conveying the food conveyance w has no cold air dissipation hole and has good thermal conductivity: a stainless steel thin plate is formed. The metal strip 12 is supported on the metal strip. The support rod 14 in the width direction of the crucible is driven by a rotating drum to be described later and moved in the direction of the arrow a. Above the metal strip 12, a plurality of nozzle units 18 are arranged along the transport direction of the metal strip 12 to form an upper cold air ejecting portion 16. The nozzle unit 18 is placed on the metal via the flange 18a. With 12 side frame frames 22 and 24 on both sides. The nozzle unit 18 has the same configuration as the nozzle unit 134 152164.doc 201200825 illustrated in Fig. 14 and has four slit nozzles 20 having a funnel-shaped cross section integrally formed on the lower surface thereof. The nozzle unit 18 has a plurality of parallel rows in the transport direction & A lower cold air injection portion 26 is provided below the metal strip 12. The lower cold air injection portion 26 is constituted by a box cover 28. A side of the box cover 28 (on the left side in Fig. i) is provided with a cold air inlet. The upper surface 28a of the box cover 28 is formed as a flat surface and is formed by a stamped metal plate having a plurality of circular through holes 29. The diameter of the perforation 29 is, for example, a large diameter of 25th. The upper surface 28a is inclined downward toward the side (the right side in Fig. 1) on the far side from the cold air inlet. In the configuration of the sea, the slit-shaped impact jet 1_ is ejected from the injection port of the slit nozzle of the upper cold air ejecting unit 6 to the food conveying object w. On the other hand, the perforation 29 from the lower 2 cold air ejecting portion 26 is directed to the metal strip. 12, the cold air c is sprayed downward. As described above, the impact jet jetted from the slit nozzle 20 [larger speed and longer reaching distance. Further, the food is conveyed by the large exhaust space e' formed between the slit nozzles. The air-cooled air cooled by the mosquitoes is smoothly discharged, so the impact jet r is not disturbed. Therefore, the cooling effect is large. "The lower cooling jet (10) of the perforation 29 sprays the cold air c: the cooling metal strip 12' to promote the metal strip 12 and the food transport you to the corner = 1 even if there is no upper cold air cut _ like the cold air e (1) shot 邛Ιόΐ "1 filling knife cold metal can be 12. So 'by the upper part of the cold air ^ 〃 cutting The cooling effect of the cold air injection conveyance w of the air injection unit 26 is achieved by the filling of the knife. w *», and 广 广 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵 邵The work space is further reduced, so that the door of the metal strip 12 can be lowered, and therefore, when the food transport object w is placed on the metal strip 12, even if it is the same as the short one, it is used as | 152164.doc -10- 201200825 The work efficiency of the operator will not be reduced. Further, since the upper surface 28a of the box-like grass is inclined in the width direction of the metal γ12, it is clear that the water is not accumulated on the upper surface 28a during washing, and the discharge of the washing water can be promoted. According to this embodiment, since the diameter of the through hole 29 is as large as 25 -, it is possible to ensure sufficiently long cold air due to * & The distance to reach. Therefore, even if the upper surface 2 (10) is inclined and the inclined lower end side is slightly separated from the lower side of the conveyor belt, the cooling effect I is not reduced. Further, the upper surface 28a can be inclined to obtain a cold air flow on the wide cold air inlet side, so that the speed of the cold air e ejected from the through hole 29 and the width direction of the metal strip 12 can be made _. Therefore, the cooling effect can be made uniform in the width direction of the metal strip 12. Next, the configuration of the cooling device 30 to which the cold air injection mechanism 10 is applied will be described based on 囷 2 to 9 . First, the entire refrigeration unit is constructed by using the outer casing 32 which forms a horizontally long cooling space surrounded by the heat insulating wall. Further, in Fig. 2, the front side wall and the upper side wall of the outer casing 32 have been removed so that the internal structure can be observed. X, in Fig. 3, the front side wall of the left half of the outer casing 32 is also removed for the same purpose. The outer casing 32 is provided in a closed structure except for the inlet opening of the inlet wall 32c and the outlet opening 36 of the outlet wall 32d. On the front wall 32&, a plurality of outer/V and 32 lengths are arranged. A monitoring window 38. There are a plurality of opening and closing doors 4 于 on the rear wall 32b so that the operator can enter the outer casing. The outer wall v 326 is a closed wall, and the illustration is omitted from the illustration. The supply unit of the refrigerant or the brine is supplied to the air cooler, 152164.doc 201200825, and the discharge pipe 44 for discharging the refrigerant or the brine. The bottom wall 32f of the outer casing 32 is supported by the foot 46 at intervals. Further, as shown in Fig. 5, the bottom wall 32f is inclined downward toward the rear wall 32b side. The lower portion of the outer casing 32 is provided with a transporting device 50 for transporting the food conveying material w into the outer casing 32. The conveying device 50 is composed of an endless metal belt 12 and rotating drums 54 and 56 that drive the metal belt 12. The metal belt 12 is disposed in the horizontal direction, and is wound around the driven drum 54 at the outer side of the inlet wall 32c at the outlet. Outside the wall 32d, wound on the drive roller brother The outward path 12a of the metal strip 12 is disposed in the horizontal direction, and is disposed in the outer casing 32 through the inlet opening 34 and the outlet opening 36, and is moved in the direction of the arrow & the circuit 12b is disposed outside the outer casing 32 below the bottom wall 32f. As shown in FIG. 5, the inside of the outer casing 32 is partitioned into an upper negative pressure chamber 62, a lower positive pressure chamber 64, and an upper negative pressure chamber 62 located at the side of the maintenance space 66 by the partition walls 58 and 6'. An air cooler 68 is fixed to the upper surface of the partition wall 58. The air cooler 68 is connected to a refrigerator unit (not shown) disposed at a position separated from the outer casing 32 via the above-described air supply and exhaust pipes 42 and 44. Further, on the partition wall 58 A circular air passage 58a is formed. The air passage 58a has a cylindrical cover 7 () 'with an axial fan in the cover 7 () for driving the motor 74. As shown in FIG. 3 and FIG. As shown, the air cooler 68 is provided with two units in the longitudinal direction of the outer casing ,, and the axial flow fan 72 is provided with four units in the length direction of the outer casing 。 and that the air in the interior is cooled by the air cooler 68. By the axial flow fan 72, the air is vented from the air passage SSa to the lower positive pressure chamber. The upper negative pressure chamber 62 is in a negative pressure atmosphere. The metal is disposed in the horizontal direction as shown in FIG. 5, and is in the lower positive pressure chamber 152164.doc 201200825 with the passage 12a of 12. The outward path 12a is provided by a plurality of width directions The support rod 14 is supported at a specific height. Above the two sides of the outward path i2a of the metal strip 12, support frames 22 and 24 are disposed in the longitudinal direction of the peripheral portion 32. Above the outward path 12a, along the path 丨 2a The upper cold air injection unit 16 is provided below the outward path 12a, and the lower cold air injection unit 26 is provided along the outward path 12a. The lower cold air injection portion 26 is constituted by a box-shaped outer casing 28 having a cold air flow inlet 28b on one side. The outer casing 28 is fixed to the upper surface of the bottom wall 32f. As described above, the upper surface 28a is formed as a flat surface and is provided with a plurality of circular perforations 29. The upper surface 28a is inclined toward the maintenance space & side. Further, the bottom wall 32f of the outer casing μ is also inclined downward toward the side of the maintenance space 66. An opening and closing door 28c is provided on the side of the phase peripheral portion 28 on the side of the dimension space 66. A flange is provided at the upper end of the opening and closing door 28c, and the operator can slide the upper side in the cleaning direction to open the side. Next, the configuration of the inlet wall 32c side of the conveying device 5A will be described with reference to Figs. 6 and 7 . The frame 82 is coupled to the inlet wall 32c of the outer casing 32 and is supported by the feet 46 to support the horizontal direction. The cylindrical driven roller 54 is disposed in the horizontal direction. The metal strip 12 is wound around the driven roller 54. The surface of the driven roller 54 is covered with a rubber material. Both ends of the rotary shaft 54a of the driven roller 54 are rotatably supported by bearings 84. The bearing 84 is slidably supported on the frame 82 in the direction of the arrow a or b, and is attached to the frame 82 via the coil spring 86. Thereby, the driven roller 54 can be moved in the direction of the arrow a or b, and the tension of the metal strip 12 can be adjusted. Between the frame 82, a reinforcing rod gg' and a support rod 90 supporting the circuit i2b of the metal strip 12 and a guiding rod 92 of the guiding circuit 12b are disposed. 152164.doc 13 201200825 Next, the configuration of the outlet wall 32d side of the conveying device 5A will be described with reference to Figs. 8 and 9 . In Fig. 8 and Fig. 9, a frame 94 is fixed to the outlet wall 32d, and a rotary shaft 56a for driving the drum % is rotatably supported by a frame 96 via a bearing 96. Further, a drive motor for driving the rotary shaft 56a is attached to the frame 94. The metal belt 12 is wound around the drive roller 56, and the metal belt 12 is moved in the direction of the arrow by the rotation of the drive roller 56. The outer peripheral surface of the drive roller 56 is coated with a rubber film in the same manner as the driven roller (4). Further, on the back surface of one side edge of the stainless steel plate constituting the metal strip 12, a rubber projection 13 having a tapered trapezoidal scraping surface is vulcanized. On the other hand, a π wheel 87 having a concave portion w on the outer peripheral surface is joined to one end surface i' of the drive roller 56. The recessed portion 87a and the end surface of the drive roller 56 are formed with grooves having the same cross-sectional shape as the rubber projections 13. As the metal strip 12 travels, the rubber projections 13 will engage and slide within the recess. A pulley 87 for forming the recessed portion 87a is also attached to one end surface of the driven roller 54 shown in Figs. The tamper-proof device 88 is constituted by a rubber projection 13 and a pulley 87. By causing the rubber projections 13 to be fitted in the recesses and allowing the conveyor belt 12 to travel, the shackles of the conveyor belt 12 can be prevented. In this configuration, in the conveying device 5 on the side of the inlet wall 32c, the worker 载 places the food conveying object w on the belt surface of the outward path 12a of the metal belt 12. The food conveyance w placed on the belt surface is conveyed from the inlet opening 34 to the lower positive pressure chamber 64 in the outer casing 32. On the other hand, in the casing 32, during operation of the air cooler 68 and the axial fan, the cold air c cooled by the air cooler 68 is sent to the lower positive pressure chamber 64 through the air passage 58a by the axial fan U. 152164.doc 14-201200825 In the lower positive pressure chamber 64, cold air is sprayed from the upper and lower sides of the outward path 12a to the food conveyance w in the upper cold air injection portion 16, and is opposed to the slit-shaped injection port of the slit nozzle 2 The slit-shaped impact jet r is emitted in a direction perpendicular to the food conveyance w. As described above, the slit nozzle 20 has an acceleration portion that accelerates the tapered cross section of the cold air c, and a rectifying portion that rectifies the accelerated cold air c, and can be ejected. The jet flow having a long distance is reached. The impingement jet 1 ejected from the slit nozzle 20 will form a cold air flow which is in close contact with the surface of the food conveying object by the Coanda effect, thereby increasing the cooling effect. The exhaust space e' formed between the slit nozzles 20 can thus smoothly discharge the cold airflow after cooling from the t-product conveyance, so that the exhaust air does not disturb the impact jet r. Further, as a comparative example, Shown in Figure 15 The rectangular nozzle portion 152 is provided with a perforated flat spray surface 154, and the upper cold air ejecting portion 150 constitutes an upper cold air ejecting portion. According to this configuration, the height h of the relatively large rectangular nozzle portion 152 cannot be taken. The entanglement pitch P' between the rectangular nozzle portions 152 does not sufficiently ensure the exhaust space e. Therefore, there is a possibility that the exhaust air remains in the impact jet 1> and the impact jet r is disturbed. Conversely, if it is taken as a considerable With the pitch?, the area where the impact jet can not be blown to the food conveyance is increased, and the cooling effect is lowered. Therefore, according to the comparative example, it is understood that a sufficient cooling effect cannot be obtained. The cold air c is ejected from the perforation 29 provided on the upper surface of the box cover 28 to the lower side of the outward path 12a. Since the perforation "is a large diameter, the distance reaches a long distance and the upper surface 28a is inclined" even if it is at a distance 152164.doc 15 201200825 below the conveyor belt Open air C can also reach below i2a. Therefore, the cooling effect of the metal strip is not lowered. According to this embodiment, the cold air injection mechanism! In the crucible, the cooling effect of the food conveyance w can be highly maintained, and the installation height of the metal strip 12 can be lowered. Further, since the movable roller 54, the drive roller %, and the circuit 12b of the metal strip 12 are disposed outside the outer casing 32, the height of the metal strip 12 can be sufficiently lowered. Therefore, even a worker with a short height can easily carry out the transfer of the food conveyance w. Moreover, since the driven roller 54 and the drive roller 56 are disposed outside the outer casing, the rollers can be increased in diameter. Therefore, the bending load applied to the metal strip 12 can be alleviated, so that the metal fatigue of the metal strip 12 can be alleviated. Therefore, the metal strip can be thinned to reduce the cost of the conveyor belt. For example, according to the state of the present embodiment, the thickness of the stainless steel plate constituting the metal strip 12 can be set to 〇6 mm. Further, since the upper surface 28a of the phase cover 28 and the bottom wall 32f of the outer casing 32 are inclined toward the rear wall 32b side, the washing water is not accumulated on the bottom wall 32f when cleaning, and the inclined side of the box cover 28 is lowered. Since the side wall is constituted by the door 28c that can slide up and down, the operator can open the door 28c during washing, and the washing water can be easily discharged from the box cover 28. Further, the diameter of the through hole 29 which is formed in the upper surface 28a of the box cover 28 is ηπηφ, so that the cold air reaches a large distance. Therefore, even if the interval between the perforation 29 and the underside of the conveyor belt becomes large, the cooling effect of the metal (4) can be maintained at a high level. Therefore, even if the upper surface 28a is inclined so that the interval between the lower surface of the conveyor belt and the upper surface is increased, the cooling effect is not reduced. Fig. 10 is a line diagram showing the relationship between the height of the cold air ejection port 7 〇 to the lower side of the conveyor belt and the heat transfer rate of the metal strip of 152164.doc -16 - 201200825, showing the experimental results of the apparatus of the present embodiment. . According to the present embodiment, since the upper surface 28a of the box-shaped cover 28 is inclined in the width direction of the conveyor belt, the interval between the perforations 29 and the lower surface of the conveyor belt varies between 75 mm and 95 mm. As shown, it can be seen that even if the interval between the perforations 29 and the underside of the conveyor belt changes, the heat transfer rate does not change much. Therefore, as described in the present embodiment, it is understood that even if the upper surface 28a is inclined, the cooling effect of the metal strip 12 is hardly reduced. Fig. 11A shows the box cover 2 of the present embodiment. § ^ Since the upper surface 28a of the box cover 28 is inclined toward the width direction of the metal strip 12, the interval between the perforation μ and the metal strip 12 is between 75 and 95 mm. Variety. The circular perforations 29 have a diameter of 25 mm cj), and the perforations 29 are arranged in an equilateral triangle to each other. The distance p between the perforations 29 is 1 mm. On the other hand, Fig. 11B is a configuration shown as a comparative example. Box cover
28a’之開口率設定為相同。The aperture ratio of 28a' is set to be the same.
線W係外界氣體溫度之推移 平信形，曲線γ係使用 係冷卻空間之溫度推移，曲 另’辑篛之溫度係以刺入筠 152164.doc •17· 201200825 篛之中央部之溫度感測器測量。 由圖12可知，使用2種箱狀罩之情形中，筠翁之冷卻效 果幾乎不變。X 包裝後進行之實驗亦可獲得相同 結果。因此可知，使用未形成排氣空間6之本實施形態之 箱狀罩28,其結構較簡單，加工容易且可節省加工成本。 又’根據本實施形態’由於具備作業者〇可從開閉門4〇 進入之維護空間66,因此外殼32内之維護變容易。再者， 由於常壓之維護空間66設有開閉門4〇,因此裝置運轉中即 使打開開閉門40亦不會危險。 夕再者’由於設有軸流風扇72以形成冷氣循環流因此與 多葉片式風扇等㈣，可削減設置數，而可節省約娜之 產業上之可利用性 根據本發明，可實現降低搬送食品搬送物之傳送帶之高 又X使作業者易於作業之冷氣噴射機構。 【圖式簡單說明】 圖 圖1係顯示本發明 之冷氣噴射機構之一實施形態之立體 圖2係使用 立體圖。 前述實施形態之冷氣噴射 機構之致冷裝置之 圖3係前述致冷裝置之正視圖。 圖4係前述致冷裝置之平面圖。 圖5係前述致冷裝置之橫剖面圖。 驅動裝置之驅動部之 圖6係顯示前述致冷裝置之金屬帶 152164.doc 201200825 正視圖。 圖7係圖6之驅動部之側視圖。 圖8係顯示前述金屬帶驅動裝置之從動部之正視圖。 圖9係前述從動部之側視圖。 圖10係顯示至前述致冷裝置之下部冷氣喷射部之傳送帶 下面為止之高度與金屬帶之熱傳遞率之關係之線圖。 圖係顯示前述實施形態之箱狀罩之結構之立體圖。 圖ΠΒ係顯示作為比較例之箱狀罩之結構之立體圖。 圖12係顯示前述實施形態及比較例之食品搬送^勿之冷卻 效果之線圖。 圖13係先前之致冷裝置之橫剖面圖。 圖14係先如之冷氣喷射機構之說明圖。 圖15係作為比較例之冷氣喷射機構之說明圖。 【主要元件符號說明】 10 冷氣喷射機構 12 金屬帶 12a 去路 12b 回路 13 橡膠突起 14 支撐桿 16 上部冷氣喷射部 18 噴嘴單元 18a 凸緣 20 狹縫噴嘴 152I64.doc •19· 201200825 22、 24 支撐框架 26 下部冷氣喷射部 28 ' 28， 箱狀罩 28a 上面 28a· 平坦喷射面 28b 冷氣流入口 28c 開閉門 29 穿孔 29' 圓形穿孔 30 致冷裝置 32 外殼 32a 前方壁 32b 後方壁 32c 入口壁 32d 出口壁 32e 上部壁 32f 底部壁 34、 36 入口開口 38 監視用窗 40 開閉門 42 供給管 44 排出管 46 腳 50 搬送裝置 152164.doc •20- 201200825 ❹ 54、56 旋轉滚筒 54a 迴轉軸 58 ' 60 隔壁 58a 通風路 62 上部負壓室 64 下部正壓室 66 維護空間 68 空氣冷卻器 70 圓筒形罩 72 轴流風扇 74 驅動馬達 82 框架 84 軸承 86 線圈彈簧 87 滑輪 87a 凹部 88 防婉蜒裝置 89 補強桿 90 支撐桿 92 嚮導桿 94 框架 98 驅動馬達 100 冷氣喷射裝置 102 頂部壁 152164.doc -21- 201200825 103 底部壁 104、 105 兩側部壁 108 傳送帶 112 頂部壁 113 回收通道 114 高壓室 115、 116 側部壁 117 頂部壁 118 風扇 119、 120 蒸發器 130 傳送帶 132 上部冷氣喷射部 134、 142 喷嘴單元 136、 144 狹缝喷嘴 138 加速部 139 整流部 140 下部冷氣喷射部 150 上部冷氣喷射部 152 矩形喷嘴部 154 平坦喷射面 a 搬送方向 c 喷射冷氣 e 排氣空間 〇 作業員 152164.doc -22- 201200825 r 衝擊喷流 w 食品搬送物Line W is the flatness of the outside air temperature, and the curve γ is the temperature change of the cooling space. The temperature of the other part is used to penetrate the temperature sensor of the central part of the 筠152164.doc •17·201200825 篛measuring. As can be seen from Fig. 12, in the case of using two kinds of box-shaped covers, the cooling effect of the 筠 几乎 is almost unchanged. The same results were obtained for experiments performed after X packaging. Therefore, it is understood that the use of the box-shaped cover 28 of the present embodiment in which the exhaust space 6 is not formed has a simple structure, is easy to process, and can save processing costs. Further, according to the present embodiment, since the maintenance space 66 that the operator can enter from the opening and closing door 4 is provided, the maintenance in the casing 32 is facilitated. Further, since the maintenance space 66 of the normal pressure is provided with the opening and closing door 4, it is not dangerous to open the opening and closing door 40 even during the operation of the apparatus. In addition, since the axial flow fan 72 is provided to form a cold air circulation flow, and the multi-blade fan or the like (four), the number of installations can be reduced, and the industrial availability of the yona can be saved. According to the present invention, the reduction can be realized. The conveyor belt of the food conveyor is high in height and the air injection mechanism that makes the operator easy to work. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing an embodiment of a cold air injection mechanism of the present invention. Fig. 3 of the refrigeration apparatus of the cold air injection mechanism of the above embodiment is a front view of the above refrigeration apparatus. Figure 4 is a plan view of the aforementioned refrigeration apparatus. Figure 5 is a cross-sectional view of the aforementioned refrigeration apparatus. Fig. 6 of the driving portion of the driving device shows a front view of the metal strip 152164.doc 201200825 of the aforementioned cooling device. Figure 7 is a side view of the drive portion of Figure 6. Figure 8 is a front elevational view showing the driven portion of the aforementioned metal belt driving device. Figure 9 is a side view of the aforementioned driven portion. Fig. 10 is a graph showing the relationship between the height to the lower side of the conveyor belt of the cold air injection portion below the refrigeration unit and the heat transfer rate of the metal strip. The figure shows a perspective view of the structure of the box cover of the above embodiment. The figure shows a perspective view of the structure of the box cover as a comparative example. Fig. 12 is a line diagram showing the cooling effect of the food conveying method of the above-described embodiment and the comparative example. Figure 13 is a cross-sectional view of a prior refrigeration device. Fig. 14 is an explanatory view of a cold air ejecting mechanism as before. Fig. 15 is an explanatory view of a cold air injection mechanism as a comparative example. [Main component symbol description] 10 Cold air injection mechanism 12 Metal belt 12a Detour 12b Circuit 13 Rubber projection 14 Support rod 16 Upper cold air injection portion 18 Nozzle unit 18a Flange 20 Slit nozzle 152I64.doc •19·201200825 22, 24 Support frame 26 lower cold air injection part 28' 28, box cover 28a upper surface 28a · flat spray surface 28b cold air flow inlet 28c opening and closing door 29 perforation 29' circular perforation 30 refrigeration device 32 outer casing 32a front wall 32b rear wall 32c inlet wall 32d outlet Wall 32e Upper wall 32f Bottom wall 34, 36 Entrance opening 38 Monitoring window 40 Opening and closing door 42 Supply pipe 44 Discharge pipe 46 Foot 50 Transfer device 152164.doc • 20- 201200825 ❹ 54, 56 Rotary drum 54a Rotary shaft 58 ' 60 Next door 58a Ventilation path 62 Upper negative pressure chamber 64 Lower positive pressure chamber 66 Maintenance space 68 Air cooler 70 Cylindrical cover 72 Axial fan 74 Drive motor 82 Frame 84 Bearing 86 Coil spring 87 Pulley 87a Recess 88 Anti-smashing device 89 Reinforcement Rod 90 support rod 92 guide rod 94 frame 98 Drive motor 100 Cold air injection device 102 Top wall 152164.doc -21- 201200825 103 Bottom wall 104, 105 Side wall 108 Conveyor belt 112 Top wall 113 Recovery channel 114 High pressure chamber 115, 116 Side wall 117 Top wall 118 Fan 119 120 evaporator 130 conveyor belt 132 upper cold air injection unit 134, 142 nozzle unit 136, 144 slit nozzle 138 acceleration unit 139 rectification unit 140 lower air injection unit 150 upper cold air injection unit 152 rectangular nozzle unit 154 flat ejection surface a transport direction c Jet air-conditioning e venting space 〇 operator 152164.doc -22- 201200825 r impact jet w food conveyor
152164.doc -23-152164.doc -23-