JP5232342B2 - 包装充填装置 - Google Patents
包装充填装置 Download PDFInfo
- Publication number
- JP5232342B2 JP5232342B2 JP2010516659A JP2010516659A JP5232342B2 JP 5232342 B2 JP5232342 B2 JP 5232342B2 JP 2010516659 A JP2010516659 A JP 2010516659A JP 2010516659 A JP2010516659 A JP 2010516659A JP 5232342 B2 JP5232342 B2 JP 5232342B2
- Authority
- JP
- Japan
- Prior art keywords
- packaging
- pressure
- tube
- liquid food
- packaging material
- 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.)
- Active
Links
- 238000004806 packaging method and process Methods 0.000 title claims description 66
- 235000021056 liquid food Nutrition 0.000 claims description 70
- 239000005022 packaging material Substances 0.000 claims description 52
- 239000007788 liquid Substances 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 34
- 238000000465 moulding Methods 0.000 claims description 30
- 239000000853 adhesive Substances 0.000 claims description 19
- 230000001070 adhesive effect Effects 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 239000002648 laminated material Substances 0.000 description 23
- 239000002313 adhesive film Substances 0.000 description 16
- 235000013305 food Nutrition 0.000 description 11
- 230000001954 sterilising effect Effects 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 235000013616 tea Nutrition 0.000 description 1
Images
Classifications
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- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B57/00—Automatic control, checking, warning, or safety devices
- B65B57/10—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged
- B65B57/14—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to control, or stop, the feed of articles or material to be packaged
- B65B57/145—Automatic control, checking, warning, or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to control, or stop, the feed of articles or material to be packaged for fluent material
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- B29C65/10—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using hot gases (e.g. combustion gases) or flames coming in contact with at least one of the parts to be joined
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- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
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- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
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- B29C66/43—Joining a relatively small portion of the surface of said articles
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Description
チューブ状包装積層材料1は、縦シール装置の予熱手段8からのホットエアーによって予熱されて、縦方向にシールされ、充填パイプ7の下端から流動性食品がチューブ状包装積層材料1内に充填される。
充填パイプ7の垂直部分は、チューブ状包装材料1の内部に下方に挿入されている。上流側の部分は、制御弁32に接続されている。充填パイプ7の垂直部分の外周囲には、円筒状のフロート34が配置されている。その液体に浮かんだフロート34は、チューブ包装材料1と充填パイプ7の間にあって、充填パイプ7の垂直部分の外面に、上下方向に移動自在に嵌められている。フロート11には、被検出手段35(マグネット、発信器または、タグなど)が取付けられている。チューブ1の外部に検出器31が配されている。検出器31は、被検出手段との間の信号の強弱の変化を電流に変えて電気信号として出力する。所定レベル若しくはそれ以上では停止信号を、所定レベル以下であると開放信号をそれぞれ制御装置33に出力する。一方、充填パイプ7の上流側部分には、電磁式流量制御弁32が設けられており、電磁式流量制御弁32は、制御装置33により制御される。
液体の液面レベルが所定レベルに調整される。(参考特許文献1)
この態様では、高速に、横シール、予備成形及び切断を行うために、二対のシールジョー及び対向ジョー、並びに、成形フラップを備え、横シール、予備成形及び切断ステップを終えた一対は、横に退避し上方に戻り、次の横シール、予備成形及び切断ステップを繰返す。
また、このような陽圧に維持されていることが、中身食品の衛生状態を維持する。すなわち、万が一に包装材料に僅かな傷、割れ目若しくはピンホールがあっても、この箇所から液体食品が外に出るだけであり、外部雰囲気物質の何らかが侵入しチューブ内の液体食品を汚染することがない。
ウェブ状包装材料をチューブ状に成形し、包装材料の両端部で重ね合わされたチューブの縦線方向に縦シールし、垂直に下方に連続的に搬送されるチューブ状包装材料内に充填パイプから液体食品を、充填パイプ出口上方の所定位置の液面レベルまで充填し、液面下でチューブ横断方向にシールジョー及びカウンタージョーでチューブを挟んで引き下ろす間に横シールし、チューブを同時に成形用フラップで挟んで予備成形し、横シール帯域で切断して包装容器を製造する包装充填装置であって、
チューブ状包装材料内の液面下であって充填パイプ外周上に設けられた、プレシャーフランジを有し、プレシャーフランジが、充填されたチューブ内の液体食品が下方から上方に自由に流動することを抑制して、プレシャーフランジ下方のチューブ内の液体食品の圧力を陽圧にし、成形用フラップによる予備成形を容易にし、
シールジョー及びカウンタージョー並びに成形用フラップの上方であり、液体食品圧力の変動によって液体食品圧力が下降する箇所の上流側で、縦シール帯域であって継ぎ目に生じた間隙若しくは間隙が生じる恐れがある部位を塞ぐ被覆手段を有し、被覆手段が、液体食品圧力の変動による液体食品圧力の陰圧への下降によって、チューブへの外部雰囲気物質の侵入を防止する、
ことを特徴とする。
液体食品が充填されたウェブ状包装材料の液面下で、横シールするので、容器内に不要な空気等が残らず、品質保持に寄与する。
上述の包装充填において、充填されたチューブ内の液体食品の圧力は、液面からの液体の深さに相当して陽圧である。包装材料を成形フラップで成形する際に、陽圧であることによって良好に成形することができる。
チューブ状包装材料が下方に送られながら、シールジョー及び対向ジョーにより急速に挟持され、また、一対の成形フラップにより急速に挟まれる際に、チューブ状包装材料の中身の液体が押出され、チューブ内の液体食品の圧力が急激に上昇して過剰な陽圧となる。この過剰な陽圧は、液面レベルを急激に上昇させ、不安定に揺れさせて、液面レベル制御を困難にする恐れがある。
すなわち、この過剰な陽圧は、液面レベルを急激に上昇させ、不安定に揺れさせて、図8に示すようなフロート11が大きく上下させるおそがあり、その結果、制御装置33による制御を困難にする恐れがある。
すなわち、図8に示すように、チューブ状包装材料1内の液面下であって充填パイプ1外周上にプレシャーフランジ36を設ける。プレシャーフランジ36は、シールジョー及び対向ジョーにより急速に挟持され、また、一対の成形フラップにより急速に挟まれ液体食品が下方から上方に逆流しても、その逆流を抑え、液面レベルの急激な上昇を抑えることができる。
チューブ内の液体食品圧力の変動によって、プレシャーフランジ近傍で、充填されたチューブ内の液体食品の圧力が極めて低い陽圧若しくは陰圧になる恐れがある。
例えば、図5に示すように、横シール装置の上方位置の充填パイプ出口7a近傍において、チューブ状包装材料が矢印cの下方に送られる。図5(A)に示すように、シールジョー10a及び対向ジョー11並びに成形用フラップにより急速に挟持されると、チューブ状包装材料の中身の液体が押出され、チューブ内の液体食品の圧力が急激に上昇して矢印aの方向に逆流しようとする。プレシャーフランジ36はその逆流を抑える。
シールジョー及び対向ジョー、並びに成形用フラップにより急速に挟持されると、チューブ内の液体食品の圧力が急激に上昇する。これがピークe、fである。チューブ状包装材料が引き下ろされるとプレシャーフランジ下の容積が急速に増え、液体食品の供給量が不足し、チューブ内の液体食品の圧力が陰圧になる。これが谷gである。
上記の例においては、充填されたチューブ内の液体食品の圧力が上記谷gで陰圧になる。
また、液体食品圧力の変動によって液体食品圧力が下降する箇所の上流側である。この明細書では、この意味は、変動によって下降する程度が少ない若しくは変動の影響が無くて下降しない場所に被覆手段が設置される。換言すれば、陰圧になっる箇所の上流側であって陽圧箇所に、被覆手段が設置される。
本発明の包装充填装置は、ウェブ状包装材料を、次の別のウェブ状包装材料と継ぎ目で継いで、連続的に包装充填する。
この発明の特徴において、被覆手段が、縦シール帯域であって継ぎ目に生じた間隙若しくは間隙が生じる恐れがある部位を塞ぐので、この箇所から外部雰囲気物質、何らか(汚染物質)が侵入してチューブ内の液体食品を汚染することがなく、中身食品の衛生状態を維持することができる。
この態様において、フィルム貼着手段が、縦シール帯域であって継ぎ目に生じた間隙をフイルムで、若しくは間隙が生じる恐れがある部位をフイルムで塞ぐ。この箇所から外部雰囲気物質、何らかの汚染物質が侵入してチューブ内の液体食品を汚染することがなく、中身食品の衛生状態を維持する。
この態様において、接着剤塗布手段が、縦シール帯域であって継ぎ目に生じた間隙を接着剤で、若しくは間隙が生じる恐れがある部位を接着剤で塞ぐ。この箇所から外部雰囲気物質、何らかの汚染物質が侵入してチューブ内の液体食品を汚染することがなく、中身食品の衛生状態を維持する。
この態様で、接着剤の塗布とは、ローラ、ノズル、吹付け具、ジェット噴射具などにより液状、粘状、膜状、フィルム状の接着剤で所定箇所を塞ぐことである。
無菌室内は、衛生上、装置デザイン上、機能上、また操作上、設置に困難性がある。被覆手段を無菌室の外側に設置することによって、衛生上、装置設計上、機能上、また運転操作上、容易に便利になる。
1c 継ぎ目
1d 縦シール帯域
1e 間隙
7 充填パイプ
20 被覆手段
21 粘着フィルム片
22 剥離フイルム
23 リール
24 テープ
25b 剥離ロール
26 押しロール
27 回収ロール
28 センサ
29 制御手段
36 プレシャーフランジ
この実施形態による包装充填装置は、図7に示すように、ウェブ状包装材料1をチューブ状に成形し、包装材料の両端部でチューブの縦線方向に縦シールし、垂直に下方に搬送されるチューブ状包装材料内に充填パイプ7から液体食品を無菌室40内で、図8に示すように、充填パイプ出口上方の所定位置の液面レベルまで充填し、図9に示すように、液面下でチューブ横断方向にシールジョー10及びカウンタージョー11でチューブ1を挟んで引き下ろす間に横シールし、チューブを同時に成形用フラップ41、41で挟んで予備成形し、横シール帯域でナイフ42で切断して原型包装容器13を製造する。
この実施態様の被覆手段20は、チューブ状包装材料1内に液体食品を無菌雰囲気で充填することを保証する無菌室40直下の外側に設置される。
この設置位置は、シールジョー及びカウンタージョー並びに成形用フラップ(図1に図示せず、図9においてシールジョー10、カウンタージョー11、成形用フラップ41、41)の上方である。
この態様の包装充填装置において、被覆手段20の設置位置の下方(下流)で液体食品圧力が下降して陰圧になり、陰圧になっる箇所の上流側の陽圧の箇所に、被覆手段20が設置される。
リール23からテープ24が繰り出され、ガイド25aがこのテープ24を案内する。剥離ロール25bで、テープ24は、粘着フィルム片21から剥離フイルム22を剥離する。剥離フイルム22が剥離ロール25bで180度方向転換するために、剛直な粘着フィルム片21が直進し、曲がる剥離フイルム22から剥離する。
直進する粘着フィルム片21がチューブ状包装材料1の外表面に到達し縦シールの継ぎ目に付着する。付着した粘着フィルム片21が、押しロール26によって縦シールの継ぎ目に生じた間隙に押付けられる。その結果、粘着フィルム片21によって、間隙が塞がれる。
この態様において、縦シールの継ぎ目を検知するセンサ28を有する。センサ28からの信号によって、制御手段29が、粘着フィルム片21から剥離フイルム22を剥離して粘着フィルム片21を継ぎ目の間隙に押付けるタイミングを決定する。
連続的に包装充填する場合、帯状包装積層材料が無限の長さを持たないので、次の別の帯状包装積層材料を継ぐ必要がある。図2(a)は、帯状包装積層材料1a、1bの継ぎ目1cの縦断面を示す。継ぎ目1cで重ね合わせられる。
この態様において、ウェブ状包装材料1をチューブ状に成形し、包装材料の両端部で重ね合わされたチューブの縦線方向に縦シールして縦シール帯域1dが形成される。
図2(b)は、帯状包装積層材料1a、1bの継ぎ目1cであって、縦シール帯域1dの縦断面を示す。
両端部が重ね合わされるために、内側と外側の帯状包装積層材料1a、1bの継ぎ目1cが重なる。図2(b)に図示されるように、継ぎ目1cに間隙1eが形成される。この間隙1eを介して、チューブ状包装材料1の内部と包装材料外部とが連通する恐れがある。
フィルム貼着手段が、縦シール帯域であって継ぎ目に生じた間隙をフイルムで、若しくは間隙が生じる恐れがある部位をフイルムで塞ぐので、この箇所から外部雰囲気物質、何らかの汚染物質が侵入してチューブ内の液体食品を汚染することがなく、中身食品の衛生状態を維持する。
図4に示すように、実施例の接着剤塗布手段(図示せず)によって接着剤塊21aで、チューブ状包装積層材料1a、1bの縦シール1dの継ぎ目1cに生じた間隙1eを塞ぐ。
フィルム貼着手段が、縦シール帯域であって継ぎ目に生じた間隙をフイルムで、若しくは間隙が生じる恐れがある部位を接着剤塊21aで塞ぐので、この箇所から外部雰囲気物質、何らかの汚染物質が侵入してチューブ内の液体食品を汚染することがなく、中身食品の衛生状態を維持する。
液状、粘状、膜状、フィルム状の接着剤は、ローラ、ノズル、吹付け具、ジェット噴射具などにより所定箇所を塞ぐ。
Claims (4)
- ウェブ状包装材料を、次の別のウェブ状包装材料と継ぎ目で継いで、連続的に包装充填する包装充填装置において、
該ウェブ状包装材料をチューブ状に成形し、該包装材料の両端部で重ね合わされたチューブの縦線方向に縦シールし、垂直に下方に連続的に搬送されるチューブ状包装材料内に充填パイプから液体食品を、該充填パイプ出口上方の所定位置の液面レベルまで充填し、該液面下で該チューブ横断方向にシールジョー及びカウンタージョーで該チューブを挟んで引き下ろす間に横シールし、該チューブを同時に成形用フラップで挟んで予備成形し、該横シール帯域で切断して包装容器を製造する包装充填装置であって、
チューブ状包装材料内の該液面下であって該充填パイプ外周上に設けられた、プレシャーフランジを有し、該プレシャーフランジが、充填された該チューブ内の液体食品が下方から上方に自由に流動することを抑制して、該プレシャーフランジ下方の該チューブ内の液体食品の圧力を陽圧にし、該成形用フラップによる予備成形を容易にし、
該シールジョー及び該カウンタージョー並びに該成形用フラップの上方であり、該液体食品圧力の変動によって該液体食品圧力が下降する箇所の上流側で、該縦シール帯域であって該継ぎ目に生じた間隙若しくは間隙が生じる恐れがある部位を塞ぐ被覆手段を有し、該被覆手段が、該液体食品圧力の変動による該液体食品圧力の陰圧への下降によって、該チューブへの外部雰囲気物質の侵入を防止する、
ことを特徴とする包装充填装置。 - 該被覆手段が、フイルムを貼着して塞ぐフィルム貼着手段である、請求項1記載の包装充填装置。
- 該被覆手段が、接着剤を塗布して塞ぐ接着剤塗布手段である、請求項1記載の包装充填装置。
- 該被覆手段が、チューブ状包装材料内に液体食品を無菌雰囲気で充填することを保証する無菌室の外側に設置される、請求項1記載の包装充填装置。
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