JPS63197862A - Method of freezing foodstuff - Google Patents
Method of freezing foodstuffInfo
- Publication number
- JPS63197862A JPS63197862A JP2895487A JP2895487A JPS63197862A JP S63197862 A JPS63197862 A JP S63197862A JP 2895487 A JP2895487 A JP 2895487A JP 2895487 A JP2895487 A JP 2895487A JP S63197862 A JPS63197862 A JP S63197862A
- Authority
- JP
- Japan
- Prior art keywords
- freezing
- liquid
- food
- frozen food
- frozen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007710 freezing Methods 0.000 title claims description 130
- 230000008014 freezing Effects 0.000 title claims description 130
- 238000000034 method Methods 0.000 title claims description 36
- 239000007788 liquid Substances 0.000 claims description 123
- 235000013611 frozen food Nutrition 0.000 claims description 111
- 235000013305 food Nutrition 0.000 claims description 70
- 239000005022 packaging material Substances 0.000 claims description 63
- 239000003507 refrigerant Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 8
- 229920002554 vinyl polymer Polymers 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 description 15
- 239000007924 injection Substances 0.000 description 15
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000003466 welding Methods 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000007667 floating Methods 0.000 description 4
- 235000013372 meat Nutrition 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 235000013311 vegetables Nutrition 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 235000000396 iron Nutrition 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009461 vacuum packaging Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、野菜、肉類等の食品を冷凍するための食品凍
結方法に係り、より詳細には、二次冷凍用液（冷媒液）
凍結方法であって、食品の凍結処理時間の短縮が図れ、
かつ食品の凍結効率の向上を可能にした食品凍結方法に
関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a food freezing method for freezing foods such as vegetables and meat, and more specifically relates to a method for freezing foods such as vegetables and meat, and more specifically, a secondary freezing liquid (refrigerant liquid).
A freezing method that reduces the freezing processing time of food,
The present invention also relates to a food freezing method that makes it possible to improve food freezing efficiency.
従来より、野菜、肉類等の食品の凍結方法としては、種
々の方法（空気凍結方法、送風凍結方法、金属板接触凍
結方法、二次冷媒液凍結方法）が知られているが、空気
に比べて液体のほうが比熱・熱伝達率等が大きいことよ
り、同じ温度でも液体を利用したほうが速やかな凍結が
得られるという観点より、二次冷凍用液（冷媒液）凍結
方法が多く用いられている。Various methods have been known for freezing foods such as vegetables and meat (air freezing method, blast freezing method, metal plate contact freezing method, secondary refrigerant liquid freezing method), but compared to air freezing, The secondary freezing liquid (refrigerant liquid) freezing method is often used because liquids have higher specific heat, heat transfer coefficient, etc., and faster freezing can be achieved using liquids at the same temperature. .
そして、該凍結方法には、冷凍用食品をプロピレングリ
コール水溶液やアルコール水溶液等の冷凍用液中に浸漬
して凍結する浸漬式凍結方法と、冷凍用食品に該冷凍用
液を噴射して凍結する噴射式凍結方法とがあるが、一般
的には、第４図に示すように、食品冷凍用タンクに、少
なくとも一部が該タンク内のプロピレングリコール水溶
液やアルコール水溶液等の不凍液よりなる冷凍用液に浸
かるように冷凍用食品搬送コンベアを配設すると共に、
該コンベアの上部に押さえコンベアを配設し、該冷凍用
食品搬送コンベアを駆動し、該コンベアの冷凍用食品供
給部よりビニールシート等の包装材で真空包装した肉等
の食品を供給すると共に、冷凍用食品搬送コンベアと押
さえコンベア間で挾持切通して、該冷凍用食品搬送コン
ベアの冷凍用液に浸かっている個所で冷凍すると共に、
該コンベアの冷凍食品取り出し部で取り出せるようにし
た浸漬式凍結方法が多く用いられている。The freezing method includes an immersion freezing method in which the frozen food is immersed in a freezing liquid such as a propylene glycol aqueous solution or an alcohol aqueous solution, and a freezing method in which the frozen food is frozen by injecting the freezing liquid into the frozen food. There is a spray freezing method, but generally, as shown in Figure 4, a food freezing tank is filled with a freezing liquid at least partially consisting of an antifreeze solution such as a propylene glycol aqueous solution or an alcohol aqueous solution in the tank. In addition to arranging the frozen food conveyor so that it is immersed in
A holding conveyor is disposed above the conveyor, the frozen food transport conveyor is driven, and food such as meat vacuum-packed with a packaging material such as a vinyl sheet is supplied from the frozen food supply section of the conveyor, and A sandwich cut is made between a frozen food conveyor and a holding conveyor, and the frozen food is frozen at a portion of the frozen food conveyor that is immersed in the freezing liquid,
An immersion freezing method in which the frozen food can be taken out at the take-out section of the conveyor is often used.
しかしながら、上述した食品凍結方法の場合、食品を簡
単に凍結できるものの次ぎのような問題がある。すなわ
ち、
■ 冷凍用食品と冷凍用液との接触を排除するために、
該冷凍用液への浸漬に際し、該冷凍用食品を耐液性包装
材で一個一個包装する必要があるので、その作業性が低
下する。However, in the case of the food freezing method described above, although food can be easily frozen, there are the following problems. In other words, ■ To eliminate contact between frozen food and freezing liquid,
When immersing the frozen food in the freezing liquid, it is necessary to individually wrap the frozen food with a liquid-resistant packaging material, which reduces workability.
■ 凍結食品の解凍時に生じるドリップ量の減少を回る
ためには、冷凍用食品と包装用資材との間に空気層がで
きる限り出来ないようにする必要があるが、空気層を排
除するには該冷凍用食品を真空パック等の処理をする必
要があるため高コストとなるばかりか、その前処理が複
雑に成りやすい。■ In order to reduce the amount of drip that occurs when frozen foods are thawed, it is necessary to prevent air spaces between frozen foods and packaging materials as much as possible. Since it is necessary to process the frozen food by vacuum packing or the like, not only is the cost high, but also the pretreatment tends to be complicated.
本発明は、以上の点に対処して創案したものであって、
その目的とする処は、真空包装等の処理をすることなく
、冷凍用食品と包装用資材との間に空気層が殆どない状
態で該冷凍用食品の凍結を行えるようにした食品凍結方
法を提供することにある。The present invention was created in response to the above points, and
The objective is to develop a food freezing method that allows frozen foods to be frozen with almost no air space between the frozen foods and the packaging material without the need for vacuum packaging or other treatments. It is about providing.
Ｃ問題点を解決するための手段〕
そして、上記目的を達成するための手段としての食品凍
結方法は、食品冷凍用タンクに少なくとも一部が該食品
冷凍用タンク内の冷凍用液に浸漬するように配設した冷
凍用食品搬送コンベア（各種の搬送体を含む概念である
）と、該冷凍用食品搬送コンベアの上部に配設した押さ
えコンベア等の押さえ部材との間に介挿した耐液性包装
材で冷凍用食品を囲繞すると共に該耐液性包装材の進行
方向後端部を除く開口部を封止状態とし、上記冷凍用液
による液圧でもって該耐液性包装材と冷凍用食品との間
の空気を外部に排出させて冷凍用食品を密封した状態と
し、該冷凍用食品を耐液性包装材を介して冷凍用食品搬
送コンベアでもって搬送しながら凍結するようにした構
成よりなる。Means for Solving Problem C] And, the food freezing method as a means for achieving the above object includes a food freezing tank in which at least a part of the food freezing tank is immersed in the freezing liquid in the food freezing tank. A liquid-resistant product inserted between a frozen food conveyor (the concept includes various conveyors) installed in The packaging material surrounds the frozen food, and the opening of the liquid-resistant packaging material except for the rear end in the direction of travel is sealed, and the liquid-resistant packaging material and the frozen food are sealed by the hydraulic pressure of the freezing liquid. A configuration in which the air between the food and the food is discharged to the outside to seal the frozen food, and the frozen food is frozen while being transported by a freezing food conveyor via a liquid-resistant packaging material. It becomes more.
ここで、上記構成において、必要に応じて、耐液性包装
材と冷凍用食品との間の空気を外部に排出させて冷凍用
食品を密封した状態とする手段を、冷凍用液による液圧
と、耐液性包装材を介して冷凍用食品に冷凍用液若しく
は冷凍用気体等の冷媒を噴射することによる冷媒の噴射
圧とにより行うようにしている。また、耐液性包装材と
しては上下二枚のビニールシートまたは進行方向−例を
折り畳んだ構成の一枚のビニールシートを用いるように
している。また、冷凍用食品に噴射する冷凍用液として
は食品冷凍用タンクに満たされている冷凍用液をポンプ
により循環して使用するようにしている。Here, in the above configuration, if necessary, the means for discharging the air between the liquid-resistant packaging material and the frozen food to the outside to keep the frozen food in a sealed state can be implemented using hydraulic pressure using a freezing liquid. This is done by spraying a refrigerant such as a freezing liquid or a freezing gas onto the frozen food through a liquid-resistant packaging material. Further, as the liquid-resistant packaging material, two vinyl sheets (upper and lower) or a single vinyl sheet having a structure folded in the direction of travel are used. Further, as the freezing liquid to be injected onto the frozen food, the freezing liquid filled in the food freezing tank is circulated by a pump and used.
そして、上記構成に基づく本発明の食品凍結方法は、冷
凍用食品搬送コンベアと押さえ部材間に介挿した耐液性
包装材で該冷凍用食品搬送コンベアの駆動により冷凍用
食品を囲繞（囲んだり、押さえたり等）し、タンク内の
冷凍用液による液圧でもって、冷凍用食品が耐液性包装
材に密封パンク状態にして、食品冷凍用タンク内の冷凍
用液により凍結するように作用する。In the food freezing method of the present invention based on the above structure, the liquid-resistant packaging material inserted between the frozen food conveyor and the pressing member surrounds (surrounds) the frozen food by driving the frozen food conveyor. , pressing, etc.), and the liquid pressure from the freezing liquid in the tank seals and punctures the frozen food in the liquid-resistant packaging material, and the freezing liquid in the food freezing tank acts to freeze the food. do.
以上のように、本発明の食品凍結装置は、従来用いられ
ている浸漬式凍結方法において、冷凍用食品搬送コンベ
アと押さえ部材間に介挿した耐液性包装材を介挿（通常
上下二枚の連続シート）シ該耐液性包装材に冷凍用物を
内挿すると共に、冷凍用液の液圧により冷凍用食品と耐
液性包装材とを密封パック状態とするようにして凍結す
るようにした点に特徴を存し、この点により格別な作用
を奏するものである。As described above, the food freezing device of the present invention is different from the conventional immersion freezing method by inserting a liquid-resistant packaging material between the frozen food conveyor and the holding member (usually two pieces, one on top and one on top). (continuous sheet) Insert the frozen food into the liquid-resistant packaging material, and use the hydraulic pressure of the freezing liquid to seal the frozen food and the liquid-resistant packaging material so that they are frozen. It is characterized by the fact that it has been made into a material, and it has a special effect due to this point.
以下、図面を参照しながら、本発明方法を具体化した実
施例について説明する。Hereinafter, embodiments embodying the method of the present invention will be described with reference to the drawings.
ここに、第１〜３図は本発明方法を具体化するために用
いる食品凍結装置の実施例を示し、第１図は縦概略断面
図、第２図は第１図の部分拡大図、第３図は第１図のＡ
−Ａ線概略断面図である。Here, FIGS. 1 to 3 show an example of a food freezing apparatus used to embody the method of the present invention, FIG. 1 is a schematic longitudinal sectional view, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. Figure 3 is A in Figure 1.
-A schematic cross-sectional view.
まず、本実施例を説明するに際し、本実施例に使用する
食品凍結装置について説明する。この食品冷凍装置は、
食品冷凍用タンク１と冷凍用食品搬送部２と冷凍用液噴
射部３と耐液性包装材移送部４とに大別される。First, when explaining this embodiment, a food freezing apparatus used in this embodiment will be explained. This food freezing equipment
It is roughly divided into a food freezing tank 1, a frozen food transport section 2, a freezing liquid injection section 3, and a liquid-resistant packaging material transfer section 4.
食品冷凍用タンク１は、装置本体５の内部に設置されて
いて、その内部に別置する冷凍機（図示せず）より冷媒
を供給し、タンク１内のプロピレングリコール水溶液や
アルコール水溶液等の不凍液（冷凍用液）を冷却するた
めの冷却用コイル６と、該不凍液を撹拌し、液温を一定
に保つための攪拌機７を備えた構成となっている。そし
て、食品冷凍用タンク１を形成する壁体８は、耐食性等
を考慮し内面がステンレス材、外面が５Ｓ４１より形成
された二重構造となっていて、その画材間にウレタンボ
ード等よりなる保冷材が配設されていて、通常、保冷材
の厚さが２０■ｌ程度、また内面材の厚さが１．２ｎ程
度、外面材の厚さが９ｎ程度ものを用いている。この構
成としたのは、内側のステンレス材が薄くてすむためコ
スト低下でき、また、内面材（ステンレス材）を保冷材
の内側に嵌めるだけでよいので製造が簡単に行え、しか
も熱収縮がとれるという利点を有するということを考慮
したためである。しかし、他の材料でもって二重構造と
したものであってもよい。The food freezing tank 1 is installed inside the device main body 5, and is supplied with refrigerant from a refrigerator (not shown) installed separately inside the food freezing tank 1. It has a configuration including a cooling coil 6 for cooling the (freezing liquid) and a stirrer 7 for stirring the antifreeze liquid and keeping the liquid temperature constant. The wall body 8 forming the food freezing tank 1 has a double structure in which the inner surface is made of stainless steel and the outer surface is made of 5S41 in consideration of corrosion resistance. Usually, the thickness of the cold insulation material is about 20 liters, the thickness of the inner surface material is about 1.2 nm, and the thickness of the outer surface material is about 9 nm. This configuration reduces costs because the inner stainless steel material only needs to be thin, and it is easy to manufacture because the inner material (stainless steel material) only needs to be fitted inside the cold insulation material, and heat shrinkage is eliminated. This is because it takes into consideration that it has the following advantages. However, a double structure made of other materials may also be used.
ここで、食品冷凍用タンクｌは、図面において、その左
右方向上部が外方向に広がる横長状の容器形状をしてい
て、冷却用コイル６と、攪拌機７の攪拌羽根７′とを内
底部に有している。冷却用コイル６は上下位置に二本並
列に前壁９側より配設されており、また、攪拌羽根７′
は後壁１０側に配設されている。なお、攪拌羽根７′を
駆動させるための攪拌機７本体は、食品冷凍用タンク１
と装置本体５とが形成する空所１１に、振動防止および
熱膨張等を考慮してフレキシブル材を介挿して設置され
ている。Here, in the drawing, the food freezing tank l has the shape of an oblong container whose upper part in the left and right direction expands outward, and the cooling coil 6 and stirring blades 7' of the stirrer 7 are attached to the inner bottom. have. Two cooling coils 6 are arranged in parallel at the top and bottom positions from the front wall 9 side, and stirring blades 7'
is arranged on the rear wall 10 side. The main body of the stirrer 7 for driving the stirring blades 7' is attached to the food freezing tank 1.
A flexible material is inserted into a space 11 formed by the device body 5 and the device main body 5 in consideration of vibration prevention, thermal expansion, and the like.
冷凍用食品搬送部２は、冷凍用食品搬送コンベア１２と
押さえコンベア１３とより構成されていて、冷凍用食品
搬送コンベア１２はひれ付の鋼製のネットコンベアで形
成され、その食品搬送面Ｉ２′に対応する個所に鋼製の
ネットコンベアよりなる押さえコンベア１３が配設され
ている。冷凍用食品搬送コンベア１２は図面において左
側に冷凍用食品を供給するための冷凍用食品供給部１４
が形成され、図面において右側に冷凍された食品を取り
出すための冷凍食品取り出し部１５が形成され、中央に
食品冷凍用タンク１内に満たされている冷凍用液に浸漬
する食品冷凍部１６が形成されている。そして、冷凍用
食品搬送コンベア１２の冷凍用食品供給部１４と冷凍食
品取り出し部１５とは、それぞれ食品冷凍用タンク１の
前壁９、後壁１０の上部個所に位置するように配設され
ている。ここで、冷凍用食品搬送コンベア１２は、空所
１１に設置されている駆動装置１７により駆動するよう
にしている。また、押さえコンベア１３は、上述したよ
うに冷凍用食品搬送コンベア１２の食品搬送面１２′に
対向して配設されていて、冷凍用食品を冷凍用食品搬送
コンベア１２とで挟持でき、かつ冷凍用食品搬送コンベ
ア１２の中央で冷凍用食品が冷凍用液に浸漬するように
している。なお、装置本体５を形成する上壁の左右端部
には冷凍用食品搬送コンベア１２の冷凍用食品供給部１
４に冷凍用食品を供給するための蓋と冷凍食品取り出し
部１５より冷凍食品を取り出すための蓋とを備えた構成
となっている。The frozen food transport section 2 is composed of a frozen food transport conveyor 12 and a presser conveyor 13. The frozen food transport conveyor 12 is formed of a steel net conveyor with fins, and its food transport surface I2' A holding conveyor 13 made of a steel net conveyor is disposed at a location corresponding to . The frozen food conveyor 12 has a frozen food supply section 14 for supplying frozen food on the left side in the drawing.
A frozen food take-out part 15 for taking out the frozen food is formed on the right side in the drawing, and a food freezing part 16 immersed in the freezing liquid filled in the food freezing tank 1 is formed in the center. has been done. The frozen food supply section 14 and the frozen food take-out section 15 of the frozen food conveyor 12 are arranged at the upper portions of the front wall 9 and rear wall 10 of the food freezing tank 1, respectively. There is. Here, the frozen food conveyor 12 is driven by a drive device 17 installed in the empty space 11. Further, as described above, the holding conveyor 13 is disposed to face the food conveyance surface 12' of the frozen food conveyor 12, and can hold the frozen food between the frozen food conveyor 12 and the frozen food conveyor 12. The food to be frozen is immersed in the freezing liquid at the center of the food conveyor 12. Note that the frozen food supply section 1 of the frozen food conveyor 12 is located at the left and right ends of the upper wall forming the device main body 5.
4 and a lid for taking out the frozen food from the frozen food take-out part 15.
冷凍用液噴射部３は、冷凍用食品搬送コンベア１２の食
品搬送面１２′の上下位置にそれぞれ配設されている。The freezing liquid injection parts 3 are disposed above and below the food conveyance surface 12' of the frozen food conveyor 12, respectively.
そして、冷凍用液噴射部３は冷凍用液を冷凍用食品に噴
射するための複数個の噴射用ノズル１８を備えたバイブ
１９で形成されていて、パイプ１９は空所１１に設置さ
れているポンプ２０を介して食品冷凍用タンクｌと接続
され、食品冷凍用タンク１内の冷凍用液を供給できるよ
うにしている。ここで、冷凍用液噴射部３を形成する噴
射用ノズル１日は搬送される凍結用食品に万遍なく噴射
できるように冷凍用液に浸漬している冷凍用食品搬送コ
ンベア１２の中央全域に配設されている。そして、通常
、噴射用ノズル１８より噴射される冷凍用液の噴射量は
パルプ（図示せず）等により調整できるようにしである
。The freezing liquid injection unit 3 is formed of a vibrator 19 equipped with a plurality of injection nozzles 18 for spraying freezing liquid onto the frozen food, and the pipe 19 is installed in the space 11. It is connected to the food freezing tank 1 via a pump 20 so that the freezing liquid in the food freezing tank 1 can be supplied. Here, the injection nozzle forming the freezing liquid injection part 3 is sprayed throughout the center of the frozen food transport conveyor 12, which is immersed in the freezing liquid, so that it can evenly spray the frozen food to be conveyed. It is arranged. Usually, the amount of the refrigeration liquid injected from the injection nozzle 18 can be adjusted using pulp (not shown) or the like.
耐液性包装材移送部４は、上下の帯状（連続する）のビ
ニールシート等よりなる耐液性包装材２１．２１を送り
出すための耐液性包装材送出ローラ２２．２２と耐液性
包装材取り出しローラ２３および耐液性包装材封止用熱
溶着部２４とよりなる。耐液性包装材送出ローラ２２．
２２は、冷凍用食品搬送コンベア１２の冷凍用食品供給
部１４に設けられ、冷凍用食品搬送コンベア１２と押さ
えコンベア１３との接触部２５に配設されている耐液性
包装材封止用熱溶着部２４で重合するように配設されて
いる。耐液性包装材封止用熱溶着部２４は、耐液性包装
材２１．２１の進行方向に対して直角方向に耐液性包装
材２１．２１を熱溶着するための直角方向アイロン２５
と、耐液性包装材２１．２１の進行方向の両側を連続し
て熱溶着するための両側アイロン２６とより構成されて
いる。また、耐液性包装材取り出しローラ２３は、冷凍
用食品搬送コンベア１２の冷凍食品取り出し部１５に配
設されている。The liquid-resistant packaging material transfer unit 4 includes a liquid-resistant packaging material delivery roller 22.22 for feeding out liquid-resistant packaging material 21.21 made of upper and lower strip-shaped (continuous) vinyl sheets, etc., and a liquid-resistant packaging material. It consists of a material take-out roller 23 and a heat welding part 24 for sealing liquid-resistant packaging material. Liquid-resistant packaging material delivery roller 22.
22 is a liquid-resistant packaging material sealing heat provided in the frozen food supply section 14 of the frozen food conveyor 12 and provided at the contact section 25 between the frozen food conveyor 12 and the pressing conveyor 13. They are arranged so that they overlap at the welded portion 24. The liquid-resistant packaging material sealing heat welding unit 24 includes a right-angle iron 25 for thermally welding the liquid-resistant packaging material 21.21 in a direction perpendicular to the traveling direction of the liquid-resistant packaging material 21.21.
and both side irons 26 for continuously heat-welding both sides of the liquid-resistant packaging material 21, 21 in the direction of travel. Further, the liquid-resistant packaging material take-out roller 23 is disposed at the frozen food take-out section 15 of the frozen food transport conveyor 12.
なお、２７は浮き板であって、保冷材等で形成され、食
品冷凍用タンク１に満たされている冷凍用液の液面に浮
かせた構成となっている。ここで、浮き板２７は、完全
に浮いた構成である必要はなく、吊るした構成等であっ
てもよい。換言すれば、例えば、液面に沿って上下動す
るようにしてもよい。The floating plate 27 is made of a cold insulating material or the like and is configured to float on the surface of the freezing liquid filled in the food freezing tank 1. Here, the floating plate 27 does not need to have a completely floating configuration, and may have a suspended configuration. In other words, it may be moved up and down along the liquid level, for example.
次ぎに、以上の構成の食品凍結装置を用いて、本発明方
法の実施例を説明する。Next, an example of the method of the present invention will be described using the food freezing apparatus configured as described above.
まず、食品冷凍用タンク１内にプロピレングリコール水
溶液やアルコール水溶液等の不凍液（冷凍用液）を満た
し、かつ浮き板４をその液面に配設した後、タンク１に
設置されている該冷却用コイル６に冷媒を供給し、冷凍
用液を冷却すると共に、攪拌羽根７′を攪拌機７により
駆動させてタンク１内の冷凍用液を攪拌冷却することに
より均一温度に保持するようにする。First, the food freezing tank 1 is filled with an antifreeze solution (freezing solution) such as a propylene glycol aqueous solution or an alcohol aqueous solution, and the floating plate 4 is placed on the liquid surface. A refrigerant is supplied to the coil 6 to cool the freezing liquid, and the stirring blade 7' is driven by the stirrer 7 to agitate and cool the freezing liquid in the tank 1, thereby maintaining a uniform temperature.
そして、上記状態において、冷凍用食品搬送コンベア１
２を駆動し、冷凍用食品搬送コンベア１２と押さえコン
ベア１３間に耐液性包装材送出ローラ２２．２２より二
枚のビニールシート等の耐液性包装材２１．２１を介挿
し、その先端部を耐液性包装材取り出しローラ２３に導
いた後、耐液性包装材封止用熱溶着部２４の直角方向ア
イロン２５で耐液性包装材２１．２１を進行方向に対し
て直角方向に溶着する。そして、冷凍用食品を該コンベ
ア１２の冷凍用食品供給部１４より耐液性包装材２１．
２１間に順次供給して耐液性包装材２１．２１で冷凍用
食品を囲繞（上下よりパックするように囲む。ここでは
、コンベア１２のひれ部分と押さえコンベア１３とによ
り）し、次ぎに、耐液性包装材２１．２１の進行方向両
側を耐液性包装材封止用熱溶着部２４の両側アイロン２
６で連続して熱溶着すると共に、該冷凍用食品を冷凍用
食品搬送コンベア１２のひれにより冷凍用食品を個別に
して両コンベア１２．１３で挟持し、冷凍用食品搬送コ
ンベア１２によって、食品冷凍部１６に搬送する。ここ
で、冷凍用食品搬送コンベア１２の上下位置に配設され
ている冷凍用液噴射部３を形成する複数個の噴射ノズル
１８より冷凍用液が耐液性包装材２１．２１に略均等に
噴射され、冷凍用物に万遍なく冷凍できるようにするよ
うにしている。In the above state, the frozen food conveyor 1
2, two liquid-resistant packaging materials 21.21 such as vinyl sheets are inserted between the frozen food transport conveyor 12 and the presser conveyor 13 from the liquid-resistant packaging material delivery roller 22.22, and the tip portions are After guiding the liquid-resistant packaging material 21 to the liquid-resistant packaging material take-out roller 23, the liquid-resistant packaging material 21.21 is welded in a direction perpendicular to the direction of travel using the perpendicular iron 25 of the liquid-resistant packaging material sealing heat welding part 24. do. Then, the frozen food is transferred from the frozen food supply section 14 of the conveyor 12 to the liquid-resistant packaging material 21.
21, and surround the frozen food with the liquid-resistant packaging material 21. Irons 2 on both sides of the liquid-resistant packaging material sealing heat welding part 24 are applied to both sides of the liquid-resistant packaging material 21 in the direction of movement.
At the same time, the frozen food is separated into individual pieces by the fins of the frozen food conveyor 12 and sandwiched between both conveyors 12 and 13, and then the frozen food is frozen by the frozen food conveyor 12. It is transported to section 16. Here, the freezing liquid is sprayed almost evenly onto the liquid-resistant packaging material 21, 21 from a plurality of spray nozzles 18 forming the freezing liquid spraying section 3 disposed above and below the frozen food conveyor 12. It is sprayed to ensure that items to be frozen are evenly frozen.
また耐液性包装材２１．２１間の空気は、タンクエ内の
冷却用液による液圧により後方の開口側、すなわち冷凍
用食品供給部１４側に排出され、従って、耐液性包装材
２１．２１間の冷凍用食品と耐液性包装材２１．２１と
は密着状態になり、真空パックしたのと同じような状Ｌ
ｉ（空気層が存在しないので、冷却効果が低下すること
ない状態）となる、ここでは、多少、冷凍用液の噴射圧
によっても密封状態とする作用がなされる。しかし、な
くてもよい。Moreover, the air between the liquid-resistant packaging materials 21.21 is discharged to the rear opening side, that is, the frozen food supply section 14 side, by the hydraulic pressure caused by the cooling liquid in the tank, and therefore, the air between the liquid-resistant packaging materials 21.21. The frozen food between 21 and the liquid-resistant packaging material 21.21 will be in close contact with each other, and the product will be in a state similar to that of vacuum-packed food.
i (a state in which the cooling effect does not deteriorate because there is no air layer); here, the injection pressure of the freezing liquid also acts to create a sealed state. However, it is not necessary.
また、冷凍用食品は食品冷凍部１６で食品冷凍用タンク
１内の冷凍用液および噴射冷凍用液とにより熱が奪われ
、冷凍用食品が冷凍される。Further, heat is removed from the frozen food by the freezing liquid and the sprayed freezing liquid in the food freezing tank 1 in the food freezing section 16, and the frozen food is frozen.
続いて、冷凍された冷凍食品は冷凍用食品搬送コンベア
１２によって冷凍食品取り出し部１５方向に搬送され、
冷凍食品取り出し部に配設された逆洗用高圧エアノズル
２８によって、耐液性包装材２１．２１に付着した冷凍
用液を逆洗した後、耐液性包装材２１．２１の切断（開
封）処理をして、冷凍食品を冷凍食品取り出し部１５よ
り取り出せるようにしている。Subsequently, the frozen food is conveyed by the frozen food conveyor 12 toward the frozen food take-out section 15,
After backwashing the freezing liquid adhering to the liquid-resistant packaging material 21.21 using the high-pressure air nozzle 28 for backwashing provided in the frozen food removal section, the liquid-resistant packaging material 21.21 is cut (opened). After processing, the frozen food can be taken out from the frozen food take-out section 15.
ところで、上述した実施例においては、冷凍用液噴射部
を冷凍用食品搬送コンベアの上下位置に配設した構成で
説明したが、この構成に限られるものでなく、例えば、
何れか一方側に配設した構成のものを用いてもよい。ま
た、冷凍用液噴射部に供給する冷凍用液は、タンク内の
冷凍用液をポンプを介して利用する手段を採ることなく
、別タンク等より別個の冷凍用液を得るようにした構成
や、冷凍用液噴射部を設けない構成等としたものとして
もよい。By the way, in the above-mentioned embodiment, the structure in which the freezing liquid injection parts were arranged above and below the frozen food conveyor was explained, but the structure is not limited to this, and for example,
It is also possible to use a structure in which it is disposed on either side. Furthermore, the freezing liquid to be supplied to the freezing liquid injection part may be configured such that a separate freezing liquid is obtained from a separate tank, etc., without using the freezing liquid in the tank via a pump. , a configuration may be adopted in which no freezing liquid injection section is provided.
また、上述した実施例においては、耐液性包装材を介し
て冷凍用食品に噴射する冷媒として、冷凍用液を用いて
説明したが、冷凍用気体を用いてもよいことは明らかで
ある。また、該冷媒の噴射は、食品冷凍用タンクの食品
冷凍部に対応する個所でなく、冷凍用食品搬送コンベア
と押さえ部材との接触部等で行うようにしてもよい。Furthermore, in the above-described embodiments, a freezing liquid was used as the refrigerant injected into the frozen food through the liquid-resistant packaging material, but it is clear that a freezing gas may also be used. Moreover, the injection of the refrigerant may be performed not at a location corresponding to the food freezing section of the food freezing tank but at a contact point between the frozen food conveyor and the pressing member.
さらに、上述した実施例においては、耐液性包装材とし
て、上下二枚の帯状のビニールシート等よりなる耐液性
包装材を使用した構成で説明したが、筒状の耐液性包装
材や、一枚のシートをその進行方向一側を折り畳んだ構
成の耐液性包装材等を用いるようにしても良い。この場
合、封止個所を少なくできる。Furthermore, in the above-mentioned embodiments, the liquid-resistant packaging material is made up of two upper and lower belt-shaped vinyl sheets. Alternatively, a liquid-resistant packaging material having a structure in which one sheet is folded on one side in the traveling direction may be used. In this case, the number of sealing locations can be reduced.
なお、本発明は上述した実施例に限定されるものでなく
、本発明の要旨を変更しない範囲内で変形実施できるも
のを含むものである。It should be noted that the present invention is not limited to the embodiments described above, but includes modifications that can be made without changing the gist of the present invention.
以上の記載より明らかなように、本発明の食品冷凍方法
によれば、冷凍用食品搬送コンベアと押さえ部材間に介
挿した耐液性包装材で、該冷凍用食品搬送コンベアの駆
動と並行して冷凍用食品を囲繞（被覆あるいは包装）す
るようにしたので、・ 冷凍に際して、予め冷凍用食
品を包装材でパックする必要がなく、従って、その作業
性を向上できるという効果を有する。As is clear from the above description, according to the food freezing method of the present invention, the liquid-resistant packaging material inserted between the frozen food conveyor and the pressing member is used in parallel with the driving of the frozen food conveyor. Since the food for freezing is surrounded (covered or wrapped) by the following method, there is no need to pack the food for freezing with packaging material beforehand, and therefore, there is an effect that the workability can be improved.
また、本発明の食品冷凍方法において、食品冷凍用タン
ク内の冷凍用液と噴射液・噴射気体（冷媒）との異なる
両手段を用いた場合にあっては、冷凍用食品の凍結に大
きなバラツキが生じることが少ないという効果を有する
。In addition, in the food freezing method of the present invention, when two different means are used: the freezing liquid in the food freezing tank and the injection liquid/injection gas (refrigerant), there is a large variation in the freezing of the frozen food. This has the effect that it is less likely to occur.
さらに、本発明の食品冷凍方法によれば、耐液性包装材
の外側より冷凍用液による液圧でもって、耐液性包装材
と冷凍用食品との間に残存する空気を外部に排出するよ
うにしたので、冷凍用食品を耐液性包装材で略密封パッ
ク状態にして凍結処理することができるという効果を有
する。Further, according to the food freezing method of the present invention, air remaining between the liquid-resistant packaging material and the frozen food is discharged to the outside by the hydraulic pressure of the freezing liquid from the outside of the liquid-resistant packaging material. This has the effect that frozen food can be frozen in a substantially hermetically packed state using a liquid-resistant packaging material.
従って、本発明の食品冷凍方法によれば、冷凍用食品の
凍結の際に、該冷凍用食品と耐液性包装材との間に空気
層の存在を軽減するようにしているので、解凍時に生じ
るドリップ量を少なくできると共に、商品価値の良い冷
凍食品を得ることができるという効果を有する。Therefore, according to the food freezing method of the present invention, when freezing the frozen food, the presence of an air layer between the frozen food and the liquid-resistant packaging material is reduced, so that when the frozen food is thawed, This has the effect that the amount of drip produced can be reduced and frozen foods with good commercial value can be obtained.
第１．２図は本発明方法を具体化するために用いる食品
凍結装置の実施例を示し、第１図は縦概略断面図、第２
図は第１図の部分拡大図、第３図は第１図のＡ−Ａ線概
略断面図、第４図は従来装置の縦概略断面図である。
ｌ・・・食品冷凍用タンク、２・・・冷凍用食品搬送部
、３・・・冷凍用液噴射部、４・・・耐液性包装材移送
部、１２・・・冷凍用食品搬送コンベア、１３・・・押
さえコンベア（押さえ部材）、１４・・・冷凍用食品供
給部、１５・・・冷凍食品取り出し部、１６・・・食品
冷凍部、１日・・・噴射ノズル、２４・・・耐液性包装
材封止用熱溶着部、２５・・・冷凍用食品搬送コンベア
と押さえコンベアとの接触部
特 許 出願人 宇部工業株式会社
代理人 弁理士 吉 村 博 文
第３図
第４図Fig. 1.2 shows an embodiment of the food freezing device used to embody the method of the present invention, Fig. 1 is a longitudinal sectional view, Fig. 2
The figure is a partially enlarged view of FIG. 1, FIG. 3 is a schematic sectional view taken along the line A--A in FIG. 1, and FIG. 4 is a schematic vertical sectional view of the conventional device. l...Tank for freezing food, 2...Frozen food transport section, 3...Freezing liquid injection section, 4...Liquid-resistant packaging material transfer section, 12...Frozen food transport conveyor , 13... Holding conveyor (holding member), 14... Frozen food supply section, 15... Frozen food removal section, 16... Food freezing section, 1st... Spray nozzle, 24...・Thermal welding part for sealing liquid-resistant packaging material, 25...patent for the contact part between the frozen food conveyor and the holding conveyor Applicant: Ube Industries Co., Ltd. Representative, Patent Attorney: Hiroshi Yoshimura, Figure 3, Figure 4 figure
Claims (4)
用タンク内の冷凍用液に浸漬するように配設した冷凍用
食品搬送コンベアと、該冷凍用食品搬送コンベアの上部
に配設した押さえコンベア等の押さえ部材との間に介挿
した耐液性包装材で冷凍用食品を囲繞すると共に該耐液
性包装材の進行方向後端部を除く開口部を封止状態とし
、上記冷凍用液による液圧でもって該耐液性包装材と冷
凍用食品との間の空気を外部に排出させて冷凍用食品を
密封した状態とし、該冷凍用食品を耐液性包装材を介し
て冷凍用食品搬送コンベアでもって搬送しながら凍結す
るようにしたことを特徴とする食品凍結方法。(1) A frozen food conveyor disposed in a food freezing tank so that at least a portion thereof is immersed in the freezing liquid in the food freezing tank, and a presser disposed above the frozen food conveyor. A liquid-resistant packaging material inserted between a holding member such as a conveyor and the like surrounds the frozen food, and the opening of the liquid-resistant packaging material except for the rear end in the direction of movement is sealed. The air between the liquid-resistant packaging material and the frozen food is discharged to the outside by the hydraulic pressure of the liquid to seal the frozen food, and the frozen food is frozen through the liquid-resistant packaging material. A method for freezing food, characterized in that food is frozen while being transported on a food transport conveyor.
排出させて冷凍用食品を密封した状態とする手段を、冷
凍用液による液圧と、耐液性包装材を介して冷凍用食品
に冷凍用液若しくは冷凍用気体等の冷媒を噴射すること
による冷媒の噴射圧とにより行うようにした特許請求の
範囲第１項に記載の食品凍結方法。(2) The means for discharging the air between the liquid-resistant packaging material and the frozen food to the outside and sealing the frozen food is achieved by using hydraulic pressure from the freezing liquid and through the liquid-resistant packaging material. 2. The food freezing method according to claim 1, wherein the freezing method is carried out by injecting a refrigerant such as a freezing liquid or a freezing gas onto the frozen food.
または進行方向一側を折り畳んだ構成の一枚のビニール
シートを用いた特許請求の範囲第１項に記載の食品凍結
方法。(3) The food freezing method according to claim 1, wherein the liquid-resistant packaging material is made of two vinyl sheets, upper and lower, or a single vinyl sheet with one side folded in the direction of travel.
用タンクに満たされている冷凍用液をポンプにより循環
して使用するようにした特許請求の範囲第２項に記載の
食品凍結方法。(4) The food freezing method according to claim 2, wherein the freezing liquid filled in a food freezing tank is circulated by a pump and used as the freezing liquid to be sprayed onto the frozen food. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62028954A JP2526048B2 (en) | 1987-02-09 | 1987-02-09 | Food freezing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62028954A JP2526048B2 (en) | 1987-02-09 | 1987-02-09 | Food freezing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63197862A true JPS63197862A (en) | 1988-08-16 |
| JP2526048B2 JP2526048B2 (en) | 1996-08-21 |
Family
ID=12262808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62028954A Expired - Lifetime JP2526048B2 (en) | 1987-02-09 | 1987-02-09 | Food freezing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2526048B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6484068A (en) * | 1987-09-28 | 1989-03-29 | Mitsubishi Electric Corp | Continuous freezer |
| JP2009216329A (en) * | 2008-03-11 | 2009-09-24 | Technican:Kk | Method and device for manufacturing frozen object |
| JP2019149986A (en) * | 2018-03-05 | 2019-09-12 | エーシー・フードテック株式会社 | Food processing apparatus, and food processing method |
-
1987
- 1987-02-09 JP JP62028954A patent/JP2526048B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6484068A (en) * | 1987-09-28 | 1989-03-29 | Mitsubishi Electric Corp | Continuous freezer |
| JP2009216329A (en) * | 2008-03-11 | 2009-09-24 | Technican:Kk | Method and device for manufacturing frozen object |
| US8671709B2 (en) | 2008-03-11 | 2014-03-18 | Technican Co., Ltd. | Method and apparatus for producing frozen products |
| JP2019149986A (en) * | 2018-03-05 | 2019-09-12 | エーシー・フードテック株式会社 | Food processing apparatus, and food processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2526048B2 (en) | 1996-08-21 |
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