JP3707538B2 - Equipment for continuously forming vacuum packaging - Google Patents

Equipment for continuously forming vacuum packaging Download PDF

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Publication number
JP3707538B2
JP3707538B2 JP2001000008A JP2001000008A JP3707538B2 JP 3707538 B2 JP3707538 B2 JP 3707538B2 JP 2001000008 A JP2001000008 A JP 2001000008A JP 2001000008 A JP2001000008 A JP 2001000008A JP 3707538 B2 JP3707538 B2 JP 3707538B2
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Japan
Prior art keywords
tube film
vacuum
vacuum line
seal bar
movable blocks
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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.)
Expired - Fee Related
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JP2001000008A
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Japanese (ja)
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JP2002205710A (en
JP2002205710A5 (en
Inventor
辿 菅
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茨木精機株式会社
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Priority to JP2001000008A priority Critical patent/JP3707538B2/en
Priority to ES01124398T priority patent/ES2220644T3/en
Priority to EP20010124398 priority patent/EP1221411B1/en
Priority to DE2001603120 priority patent/DE60103120T2/en
Publication of JP2002205710A publication Critical patent/JP2002205710A/en
Publication of JP2002205710A5 publication Critical patent/JP2002205710A5/ja
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B31/00Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
    • B65B31/04Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Vacuum Packaging (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、多数の被包装物を等間隔収容するチューブフイルムを、前記各被包装物間で隔離シールするのに用いるバーを介し、前記チユーブフイルム内に真空を作用させる真空包装体形成装置に関する。
【0002】
【発明が解決しようとする課題】
製袋充填包装機から等間隔で搬出される開封包装体を、無端軌道を等間隔で移動する各真空チャンバー内に次々と搬入し、真空環境下で各開封包装体の開口部をシールする装置は従来種々開示されているが、特開昭61−81928は前記各装置よりも能率的な構造の真空包装手段を開示する。即ち当該手段は図6のごとく前後の被包装物8、9間のチューブフイルム部分のみを上下一対のチャンバー6、7で挟んで取り囲むと共に、同チャンバー内で前記チューブフイルムを切断3して開口し、この開口部からチューブフイルム内の空気を前記チヤンバー内に吸引する構造である。要するに当該真空手段では包装体全体をチヤンバーでもつて覆う必要がなく、少量の空気吸引で真空包装体を形成できるので能率的である。
【0003】
しかし前記の能率的な真空手段にも尚問題がある。前記チヤンバーは内部に3列の切断刃3、4、5を備え、真ん中の第1切断刃3の周囲領域にもう1つのシリンダー型チヤンバー10を備え、第1切断刃3によってカットした袋口をこのシリンダー型チャンバー10の隔壁に吸着させる。それは、外郭チャンバー6、7における一側の隙間11を通して一側の包装体8内の空気を吸引するのに伴い、同フイルム12が収縮し引き抜かれるのを阻止する目的のためである。前記のシリンダー型チャンバー10の存在は、それだけ外郭チヤンバー6、7の容積拡大に繋がり、必然的に前後の被包装物8、9の間隔拡大に派生するので、最終仕上げとして第2切断刃4と、第3切断刃5とで余分なフイルムをカット除去しなければならず、フイルムの浪費に繋がる欠点がある。
【0004】
【その解決手段】
本発明は余分なフイルムの切り捨てを防止するために、チューブフイルム内に収容した前後2個の被包装物の間で前記チューブフイルムを一対の可動ブロックによって挟み付け、該可動ブロックを通して前記チユーブフイルム内の空気を吸引する手段であって、前記両可動ブロック対向部に形成した各スカート内にそれぞれシールバーを配置すると共に、これら両スカート対向境界部に多数のトンネルを並列形成する一方、前記一対のシールバー対向面の間に、前記トンネルと連通する常設間隙を形成すると共に、前記トンネルの対向壁面に開口するサブ真空ライン吸引力によって前記チューブフイルムを前記各トンネル壁に剥離吸着し、しかして前記トンネル及び前記常設間隙を通じてチューブフイルム内に空気流通路を形成すると共に、さらに一側シールバー内部に設置するスライド切断刃を、他側シールバーにおける刃受け溝内に押し込んで開口した前記チユーブフイルム内の空気流通路を、前記刃受け溝を通じてメイン真空ラインに連通させるごとく構成する。
【0005】
対向面を境に多数のトンネルを並列形成する両可動ブロックによってチューブフイルムを挟み付けるので、前記チューブフイルムは前記各並列トンネルの間で両可動ブロックにスポット挟圧されることになり、これらスポット挟圧力が真空吸引によるフイルム引き抜きに抵抗する結果、可動ブロックの内部構成の単純化、つまりシールバー及び切断刃の設置が単数化し、従ってフイルムの無駄な浪費を防止する。
【0006】
【発明の実施形態】
図2におけるチューブフイルム20は一般に製袋充填包装機において帯状フイルムを丸めて作られ、同時に内部に多数の被包装物21を等間隔に収容する。同じ包装機における上下一対の可動ブロック22、23はそれぞれ点線軌道24に沿って運動し、これらブロック内部のシールバーは前記各被包装物21の間でチューブフイルム20を挟圧すると共に、同フイルム内の空気吸引と加熱シール作用とを前後して行なうもので、この実施構成は下記に説明する。
【0007】
構造体の左手約半分を示す図3は、両側一対の側板25の上下を繋ぎ材26で連結して門型のフレームを形成する。また前記両側の側板25下部にそれぞれ固定するスライドブロック27を一対の水平なガイド棒28に支持し、クランク作用でもつて前記の門型フレームは前記ガイド棒28に沿い動かされる。つまり前記クランクによる往復運動である。さらに前記両スライドブロックに立設する丸型柱材29に前記の両可動ブロック22、23の両端をスライド自在に支持する。フレーム間に回転自在に架設する主軸30を、ピニオン31を介してモータにより回転すると、前記主軸端のクランクレバー32及びコンロッド33を介する運動により上部可動ブロック22は丸型柱材29に沿って上下動し、また前記主軸30端のエキセントリック34の運動は下部可動ブロック23を丸型柱材29に沿って上下動させる。つまり上下両可動ブロック22、23を開閉する。この結果ガイド棒28に沿うフレーム全体の往復運動と、両可動ブロック22、23の前記開閉運動とにより、これらブロックは図2の点線軌道24に沿う運動を繰り返し行なうのである。
【0008】
両可動ブロックの断面図である図1に示すごとく、上部の可動ブロック22はその下側にスカート部39を形成し、このスカート部の内側に一側のシールバー35を設置する一方、下部可動ブロック23の上面に形成する逆スカート部40の内部に他側のシールバー36を設置すると共に、これら両シールバーは同バーを加熱するためのパイプヒータ37及び温度バランスを図るためのパイプ38をそれぞれ備える。
【0009】
図3に示すごとく上部可動ブロック22上に配置するエアシリンダ41のピストンロッド42は前記の上部シールバー35を、また同可動ブロック22に固定する第2エアシリンダ43のピストンロッド44はシールバー内部の切断刃45をそれぞれ支え、両シールバーの引き離しにより図1のごとく両シールバー35、36の間に常設間隙46を形成する。
【0010】
図4に示すごとく上下両可動ブロック22、23の、前記上下両スカート部の対向境界面46に多数のトンネル47を形成すると共に、前記各トンネル47の上下面それぞれに開設する通路48を介し前記各トンネル内に真空吸引力が作用するようにする。すなわち図1のごとく、前記各通路48を両可動ブロックにおけるスカート部39、40に穿設形成し、これら各通路48に連結するサブ真空ライン49を、図2のごとく所定容積の真空タンク50を介し真空ポンプ51に連結すると共に、前記サブ真空ライン49にノーマルクローズ型電磁第1開閉弁52を介設する。
【0011】
図1に示すように下側のシールバー36に、切断刃45を進入させる刃受け溝55を形成し、該受け溝55をメイン真空ライン56から図2の真空タンク50に連結すると共に、同メイン真空ライン56にノーマルクローズ型電磁第2開閉弁57を設置する。
【0012】
図2において上下の可動ブロック22、23がチューブフイルム20を完全に挟み付ける直前、第1開閉弁52の開放により真空圧を第1真空ライン49に作用させると、図4においてチューブフイルムは各トンネル47内面に吸着し、図1におけるチューブフイルム20の内部スペースは常設間隙46に連通する。その後図5のごとく上下両可動ブロック22、23の対向面に設置するパッキング60は前後のチューブフイルム20を図示のごとく囲繞し、前記パッキング60内での切断刃45によるカット作用で開口するチユーブフイルム内の空気は、第2開閉弁57( 図2 )の開放と同時に各スポット挟圧部61の間、つまり各トンネルを通して矢印のごとく引き出される。この場合の吸引は真空タンク50( 図2 )の容積作用で衝撃的に行なうので瞬間であり、1サイクル中に上下両シールバー35、36の相対接近により袋口の密封を行なう。
【図面の簡単な説明】
【図1】 一対の可動ブロック断面図
【図2】 装置の概略説明図
【図3】 前記可動ブロックの支持フレーム正面図
【図4】 図1におけるIV−IV視線図
【図5】 包装体シール部分の平面図
【図6】 従来の実施形態の説明図
【符号の説明】
20…チューブフイルム
21…被包装物
22、23…可動ブロック
25…側板
26…繋ぎ材
27…スライドブロック
28…ガイド
29…柱材
30…主軸
32…クランク
33…エキセントリック
35、36…シールバー
39、40…スカート部
41、43…シリンダ
45…切断刃
46…常設間隙
47…トンネル
48…通路
49…サブ真空ライン
50…真空タンク
52…第1開閉弁
55…刃受け溝
56…メイン真空ライン
57…第2開閉弁
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum package forming apparatus for applying a vacuum to the tube film through a bar used for isolating and sealing a tube film for accommodating a large number of packages to be packaged at equal intervals. .
[0002]
[Problems to be solved by the invention]
An apparatus for carrying in unsealed packages that are unloaded from bag-making filling and packaging machines one after another into vacuum chambers that move along an endless track at regular intervals and sealing the openings of the unsealed packages in a vacuum environment. Have been disclosed in various ways, Japanese Patent Laid-Open No. 61-81928 discloses a vacuum packaging means having a more efficient structure than the above-mentioned devices. That is, as shown in FIG. 6, the means surrounds and surrounds only the tube film portion between the front and back packages 8 and 9 with a pair of upper and lower chambers 6 and 7, and cuts and opens the tube film in the same chamber. The air in the tube film is sucked into the chamber from the opening. In short, the vacuum means is efficient because it is not necessary to cover the entire package with a chamber and form the vacuum package with a small amount of air suction.
[0003]
However, the efficient vacuum means still have problems. The chamber has three rows of cutting blades 3, 4, and 5 inside, another cylinder-type chamber 10 around the first cutting blade 3 in the middle, and a bag mouth cut by the first cutting blade 3. It is made to adsorb | suck to the partition of this cylinder type chamber 10. FIG. This is for the purpose of preventing the film 12 from contracting and being pulled out as air in the package 8 on one side is sucked through the gap 11 on one side in the outer chambers 6 and 7. The presence of the cylinder-type chamber 10 leads to an increase in the volume of the outer chambers 6 and 7, and inevitably results from an increase in the distance between the front and rear packages 8 and 9. The excess film must be cut and removed with the third cutting blade 5, which leads to waste of the film.
[0004]
[Solution]
In the present invention, in order to prevent the excess film from being cut off, the tube film is sandwiched by a pair of movable blocks between two front and rear packages to be packaged accommodated in the tube film, and the inside of the tube film is passed through the movable block. And a plurality of tunnels formed in parallel at the boundary between the two skirts, while a plurality of tunnels are formed in parallel at the boundary between the two skirts . A permanent gap communicating with the tunnel is formed between the seal bar facing surfaces, and the tube film is peeled and adsorbed to the tunnel walls by a suction force of a sub-vacuum line opened on the facing wall surface of the tunnel. Forming an air flow passage in the tube film through the tunnel and the permanent gap; Furthermore, as the slide cutting blade installed inside the one side seal bar is pushed into the blade receiving groove in the other side seal bar and the air flow passage in the tube film opened is communicated with the main vacuum line through the blade receiving groove. Constitute.
[0005]
Since the tube film is sandwiched between the two movable blocks that form a large number of tunnels in parallel with each other at the opposing surface, the tube film is spot-pressed by the movable blocks between the parallel tunnels. As a result of the pressure resisting film drawing by vacuum suction, the internal structure of the movable block is simplified, that is, the installation of the seal bar and the cutting blade is singularized, thus preventing wasteful use of the film.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The tube film 20 in FIG. 2 is generally made by rounding a belt-like film in a bag-filling and packaging machine, and at the same time, contains a large number of articles to be packaged 21 at equal intervals. A pair of upper and lower movable blocks 22, 23 in the same packaging machine move along a dotted line track 24, and a seal bar inside these blocks sandwiches the tube film 20 between each of the articles to be packaged 21 , and in the same film The air suction and the heat sealing action are performed before and after, and this embodiment will be described below.
[0007]
In FIG. 3 showing the left half of the structure, the upper and lower sides of the pair of side plates 25 are connected by a connecting material 26 to form a portal frame. Further, slide blocks 27 fixed to the lower portions of the side plates 25 on both sides are supported by a pair of horizontal guide bars 28, and the portal frame is moved along the guide bars 28 by a crank action. That is, the reciprocating motion by the crank. Further, both ends of both the movable blocks 22 and 23 are slidably supported by a round column 29 standing on both slide blocks. The spindle 30 rotatably bridged between the frame and rotated by a motor through the pinion 31, the upper movable block 22 by the motion through the crank lever 32 and the connecting rod 33 of the spindle end along the round pillar 29 vertically Further, the movement of the eccentric 34 at the end of the main shaft 30 moves the lower movable block 23 up and down along the circular columnar material 29. That is, the upper and lower movable blocks 22 and 23 are opened and closed. As a result, due to the reciprocating motion of the entire frame along the guide rod 28 and the opening / closing motion of the two movable blocks 22 and 23 , these blocks repeatedly perform the motion along the dotted line track 24 of FIG.
[0008]
As shown in FIG. 1 which is a cross-sectional view of both movable blocks, the upper movable block 22 has a skirt portion 39 formed on the lower side thereof, and a seal bar 35 on one side is installed inside the skirt portion, while the lower movable block 22 is movable. A seal bar 36 on the other side is installed inside the reverse skirt portion 40 formed on the upper surface of the block 23, and both the seal bars have a pipe heater 37 for heating the bar and a pipe 38 for temperature balance. Prepare each .
[0009]
As shown in FIG. 3, the piston rod 42 of the air cylinder 41 arranged on the upper movable block 22 is provided with the upper seal bar 35, and the piston rod 44 of the second air cylinder 43 fixed to the movable block 22 is provided within the seal bar. Each of the cutting blades 45 is supported, and a permanent gap 46 is formed between the seal bars 35 and 36 as shown in FIG.
[0010]
As shown in FIG. 4, a large number of tunnels 47 are formed on the opposing boundary surfaces 46 of the upper and lower skirt portions of the upper and lower movable blocks 22 and 23, and the passages 48 are formed on the upper and lower surfaces of the tunnels 47. A vacuum suction force is applied in each tunnel. That is, as shown in FIG. 1, the passages 48 are formed in the skirt portions 39 and 40 in both movable blocks, and the sub-vacuum lines 49 connected to the passages 48 are connected to the vacuum tank 50 having a predetermined volume as shown in FIG. while connected to the vacuum pump 51 via, for interposed a normally closed solenoid first on-off valve 52 to the sub vacuum line 49.
[0011]
As shown in FIG. 1, a blade receiving groove 55 for allowing the cutting blade 45 to enter is formed in the lower seal bar 36. The receiving groove 55 is connected from the main vacuum line 56 to the vacuum tank 50 of FIG. A normally closed electromagnetic second opening / closing valve 57 is installed in the main vacuum line 56.
[0012]
When the vacuum pressure is applied to the first vacuum line 49 by opening the first on-off valve 52 immediately before the upper and lower movable blocks 22 and 23 completely sandwich the tube film 20 in FIG. 47 adsorbs to the inner surface, and the internal space of the tube film 20 in FIG. Thereafter, as shown in FIG. 5, the packing 60 installed on the opposing surfaces of the upper and lower movable blocks 22 and 23 surrounds the front and rear tube films 20 as shown in the figure, and the tube film opened by the cutting action by the cutting blade 45 in the packing 60. The air inside is drawn out as indicated by an arrow between each spot clamping unit 61, that is, through each tunnel simultaneously with the opening of the second on-off valve 57 ( FIG. 2 ) . The suction in this case is instantaneous because it is performed impactively by the volume action of the vacuum tank 50 ( FIG. 2 ) , and the bag mouth is sealed by the relative approach of the upper and lower seal bars 35, 36 during one cycle.
[Brief description of the drawings]
1 is a sectional view of a pair of movable blocks. FIG. 2 is a schematic explanatory view of the apparatus. FIG. 3 is a front view of a support frame of the movable block. FIG. 4 is a view taken along line IV-IV in FIG. FIG. 6 is an explanatory diagram of a conventional embodiment.
20 ... Tube film 21 ... Packaged items 22, 23 ... Movable block 25 ... Side plate 26 ... Connecting material 27 ... Slide block 28 ... Guide 29 ... Column material 30 ... Main shaft 32 ... Crank 33 ... Eccentric 35, 36 ... Seal bar 39, 40 ... Skirt portion 41, 43 ... Cylinder 45 ... Cutting blade 46 ... Permanent gap 47 ... Tunnel 48 ... Passage 49 ... Sub vacuum line 50 ... Vacuum tank 52 ... First on-off valve 55 ... Blade receiving groove 56 ... Main vacuum line 57 ... Second on-off valve

Claims (2)

被包装物を等間隔に収容するチューブフイルムの移送軌道を隔てて配置した一対の可動ブロックそれぞれに形成したスカート部内に、それぞれシールバーを配置する一方、前記チューブフイルムの進行方向に向かって、前記両スカート部の後ろ側の対向縁をそれぞれ半円弧に抉り取って、同対向縁に、同スカート部内外を連通するほぼ円形の多数の穴、つまり多数のトンネルを形成すると共に、前記各トンネルを構成する前記各半円弧それぞれの内面に一端を開口しかつ前記両スカートの厚み内に形成した各通路を、サブ真空ラインを介して真空ポンプに連結し、さらに前記一側のシールバー内に配置した切断刃を受け入れるために、同他側のシールバー内に形成した刃受け溝を、メイン真空ラインを介して真空ポンプに連結する構成であって、前記両可動ブロックで前記チューブフイルムを、前記各被包装物の間において挟圧したとき、前記サブ真空ラインによる真空吸引力でもって前記チューブフイルムを前記各トンネルの壁に吸着して開口すると共に、ほぼ同時に、前記チューブフイルムを前記切断刃でもってカットし、前記両シールバー間の常設間隙及び前記刃受け溝を通して、前記チューブフイルム内の空気を前記メイン真空ラインに吸引し、そしてその後、前記可動ブロック内での前記シールバーの相対接近により前記チューブフイルムカット部を密封する装置。A seal bar is disposed in each of the skirt portions formed in each of the pair of movable blocks disposed with a transport trajectory of the tube film accommodating the packages to be packaged at an equal interval, while the tube film proceeds in the direction of travel. The opposite edges on the back side of both skirt parts are respectively wound in a semicircular arc, and a plurality of substantially circular holes communicating with the inside and outside of the skirt parts are formed on the opposite edges, that is, a number of tunnels. Each passage formed in the inner surface of each semicircular arc constituting one end and formed in the thickness of both skirts is connected to a vacuum pump via a sub-vacuum line , and further disposed in the seal bar on one side. In order to receive the cut blade, the blade receiving groove formed in the seal bar on the other side is connected to the vacuum pump via the main vacuum line. When the tube film is clamped between the articles to be packaged by the movable blocks, the tube film is adsorbed to the walls of the tunnels by the vacuum suction force of the sub-vacuum line and opened. Almost simultaneously, the tube film is cut with the cutting blade, the air in the tube film is sucked into the main vacuum line through the permanent gap between the seal bars and the blade receiving groove , and then the An apparatus for sealing the tube film cut portion by relative approach of the seal bar in a movable block. 一対の可動ブロックによるチューブフイルムの挟み付け動作に対応して、サブ真空ラインと真空ポンプとの間に設置する第1開閉弁を開放し、その後メイン真空ラインと真空ポンプとの間の第2開閉弁を開放する請求項1に記載の装置。 In response to the sandwiching operation of the tube film by the pair of movable blocks, the first opening / closing valve installed between the sub vacuum line and the vacuum pump is opened, and then the second opening / closing between the main vacuum line and the vacuum pump is performed. The apparatus of claim 1 wherein the valve is opened .
JP2001000008A 2001-01-04 2001-01-04 Equipment for continuously forming vacuum packaging Expired - Fee Related JP3707538B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2001000008A JP3707538B2 (en) 2001-01-04 2001-01-04 Equipment for continuously forming vacuum packaging
ES01124398T ES2220644T3 (en) 2001-01-04 2001-10-25 APPARATUS TO FORM A VACUUM BODY CONTINUOUSLY
EP20010124398 EP1221411B1 (en) 2001-01-04 2001-10-25 Apparatus for continuously forming vacuum packaged body
DE2001603120 DE60103120T2 (en) 2001-01-04 2001-10-25 Apparatus for continuously producing a vacuum-packed article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001000008A JP3707538B2 (en) 2001-01-04 2001-01-04 Equipment for continuously forming vacuum packaging

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GB2481620B (en) * 2010-07-01 2012-08-08 Sheng-Nan Guo Vertical vacuum packing machine
NL2006393C2 (en) * 2011-03-15 2012-09-18 Gks Packaging B V Vacuum packaging apparatus.
EP2907760B1 (en) * 2014-02-14 2016-06-08 Ulma Packaging Technological Center, S.Coop. Method and machine for vacuum packaging a product
RU2656360C1 (en) * 2014-11-05 2018-06-05 Криовак, Инк. Method and device for gas extraction from packaging
CN106043797B (en) * 2016-08-19 2018-01-23 天津开发区合普工贸有限公司 The innoxious vacuum packaging equipment of experimental animal carcass
CN109515879A (en) * 2018-12-14 2019-03-26 广州市永合祥自动化设备科技有限公司 Cutter structure and envelope method

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GB2164315B (en) 1984-09-14 1988-05-11 Grace W R & Co Form-fill-seal machine and method with capability for providing a vacuum or inert gas atmosphere within the package

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JP2002205710A (en) 2002-07-23

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