JP3486861B2 - Fusing seal device in packaging machine - Google Patents
Fusing seal device in packaging machineInfo
- Publication number
- JP3486861B2 JP3486861B2 JP12044899A JP12044899A JP3486861B2 JP 3486861 B2 JP3486861 B2 JP 3486861B2 JP 12044899 A JP12044899 A JP 12044899A JP 12044899 A JP12044899 A JP 12044899A JP 3486861 B2 JP3486861 B2 JP 3486861B2
- Authority
- JP
- Japan
- Prior art keywords
- film
- fusing
- roller
- sealer
- feed rollers
- 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.)
- Expired - Lifetime
Links
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- Package Closures (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、フィルムの長手方
向の重合端縁部を安定して溶断シールする溶断シール装
置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fusing and sealing device for stably fusing and sealing the overlapping edge portion of a film in the longitudinal direction.
【0002】[0002]
【従来の技術】従来、熱収縮フィルムを用いて被包装物
を包装する横型製袋充填機等の包装機は、筒状成形され
た筒状フィルムの長手方向の重合端縁部を連続的に溶断
シールする溶断シール装置を備える。この溶断シール装
置は、相互に反対方向に回転駆動されて筒状フィルムの
長手方向の重合端縁部を挟持して下流側に移送する一対
の送りローラと、該送りローラの下流側に設けられ、回
転駆動されると共に加熱された受けローラおよび切断ロ
ーラからなる溶断シーラとを備え、受けローラと切断ロ
ーラとにより筒状フィルムの重合端縁部を挟圧し、両ロ
ーラの協働作用下に該重合端縁部に溶断シールを施すよ
う構成される。2. Description of the Related Art Conventionally, a packaging machine such as a horizontal bag-filling machine for packaging an article to be packaged using a heat-shrinkable film is constructed by continuously stacking a longitudinally superposed edge portion of a tubular formed tubular film. A fusing seal device for fusing and sealing is provided. The fusing and sealing device is provided on a downstream side of a pair of feed rollers that are driven to rotate in mutually opposite directions and sandwich the overlapping edge portion in the longitudinal direction of the tubular film to transport it to the downstream side. A fusion cutting sealer comprising a receiving roller and a cutting roller which are driven to rotate and are heated, and the overlapping edge portion of the tubular film is pinched by the receiving roller and the cutting roller, and the fusing sealer is operated under the cooperation of both rollers. It is configured to provide a fusing seal to the overlap edge.
【0003】[0003]
【発明が解決しようとする課題】前記切断ローラは、筒
状フィルムの重合端縁部を溶断可能な所定の高温に加熱
されているため、包装機において腰のない薄手の熱収縮
フィルム等が使用される場合では、溶断シーラのフィル
ム挟持位置を通過する重合端縁部に瞬間的にたるみ現像
が発生し、溶融状態となっている溶断部が各ローラに付
着してフィルムクズおよび筒状フィルムの移送方向に対
してバックテンションが作用して溶断が安定して行なわ
れず、溶断部が美麗とならず見栄えが劣る問題があっ
た。Since the cutting roller is heated to a predetermined high temperature capable of melting and cutting the superposed edge portion of the tubular film, a thin heat shrinkable film which is not stiff in a packaging machine is used. In this case, sagging development occurs instantaneously at the polymerization edge passing through the film sandwiching position of the fusing sealer, and the fusing part in the molten state adheres to each roller to cause film scraps and tubular film. There is a problem that the back tension acts on the transfer direction and the fusing is not stably performed, and the fusing part is not beautiful and the appearance is poor.
【0004】前記溶断シール装置で筒状フィルムの長手
方向の重合端縁部を連続的に溶断シールした際に生ずる
幅狭帯状のフィルムクズは、前記切断ローラよりは低温
に加熱されている受けローラで案内されて、別途設けら
れた巻取り装置により巻取られて廃棄するよう構成され
ている。この場合において、包装前またはフィルム交換
時等における筒状フィルムの初期セット時には、フィル
ムクズの先端がフリーとなっていて巻取り装置にセット
されておらず、該巻取り装置にフィルムクズ先端部をセ
ットするまでは張力が与えられずに移送されるので、溶
融した溶断部が溶断シーラに付着して巻付くおそれがあ
る。従って、フィルムクズ先端部を巻取り装置にセット
するまで引出す間に、該フィルムクズが破断してしまう
ことがあった。Narrow band-shaped film scraps generated when the longitudinal edge of the tubular film is continuously fused and sealed by the fusing and sealing device are heated to a lower temperature than the cutting roller. And is wound up by a winding device separately provided and discarded. In this case, at the time of initial setting of the tubular film before packaging or during film exchange, the tip of the film scrap is free and not set in the winding device, and the film scrap tip is attached to the winding device. Since it is transferred without being applied with tension until it is set, there is a possibility that the melted and fused portion adheres to the fusion cutting sealer and winds. Therefore, the film waste may be broken while the leading end of the film waste is pulled out until it is set in the winding device.
【0005】[0005]
【発明の目的】この発明は、前述した従来の技術に内在
している前記課題に鑑み、これを好適に解決するべく提
案されたものであって、安定した溶断シールを行なうと
共に、溶断部の見栄を良くし、かつフィルム初期セット
時におけるフィルムクズの破断を防止し得る包装機にお
ける溶断シール装置を提供することを目的とする。SUMMARY OF THE INVENTION The present invention has been proposed in view of the above-mentioned problems inherent in the above-mentioned conventional techniques, and is proposed in order to solve this problem. An object of the present invention is to provide a fusing and sealing device in a packaging machine, which can improve the appearance and can prevent the film scraps from breaking during the initial setting of the film.
【0006】[0006]
【課題を解決するための手段】前述した課題を解決し、
所期の目的を好適に達成するため、本発明に係る包装機
における溶断シール装置は、フィルムの重合端縁部を溶
断シールする包装機における溶断シール装置であって、
相互に反対方向に回転駆動され、前記フィルムの重合端
縁部を挟持して下流側に向けて該フィルムを移送する一
対の第1送りローラと、前記第1送りローラに対してフ
ィルム移送方向下流側に設けられ、前記フィルムの重合
端縁部を挟持して相互に反対方向に回転駆動される加熱
された受けローラおよび受けローラよりも高温に加熱さ
れた切断ローラからなる溶断シーラと、前記溶断シーラ
に対してフィルム移送方向下流側に設けられ、該溶断シ
ーラの回転周速よりも僅かに高速の周速で回転駆動さ
れ、溶断シーラにより溶断された帯状のフィルムクズを
挟持して引出す一対の第2送りローラとからなり、前記
溶断シーラのフィルム溶断挟持位置に対し、一対の第1
送りローラの第1フィルム挟持位置および一対の第2送
りローラの第2フィルム挟持位置を、フィルム溶断挟持
位置を通るフィルム移送ラインから受けローラ側に変位
させ、前記フィルム重合端縁部を受けローラに巻掛けて
該受けローラの受面で張った状態に保持し得るように構
成したことを特徴とする。[Means for Solving the Problems]
In order to preferably achieve the intended purpose, the fusing sealing device in the packaging machine according to the present invention is a fusing sealing device in a packaging machine for fusing and sealing the polymerized edge portion of the film,
A pair of first feed rollers that are driven to rotate in mutually opposite directions and sandwich the overlapping edge portion of the film and transport the film toward the downstream side; and a downstream of the first feed roller in the film transport direction. And a fusing sealer, which is provided on a side of the film and is driven to rotate in opposite directions by sandwiching the overlapping edge portion of the film, and a cutting roller heated to a temperature higher than that of the receiving roller; A pair of strips are provided on the downstream side of the sealer in the film transport direction, are driven to rotate at a peripheral speed slightly higher than the peripheral speed of rotation of the fusing sealer, and sandwich and pull out the strip-shaped film scraps fused by the fusing sealer. A second feed roller, and a pair of first fuses is provided with respect to the film fusing and sandwiching position of the fusing sealer.
The first film nipping position and the second film nipping position of the pair of second feed rollers of the feed roller, the roller side received from the film transfer line through the film fusing nip position displacement
And wrap it around the film stack edge roller
A structure is provided so that the receiving surface of the receiving roller can be held in a tensioned state.
It is characterized in that form.
【0007】[0007]
【作用】一対の第1送りローラにより重合端縁部が挟持
されて下流側へ向けて移送されるフィルムは、その重合
端縁部が、溶断シーラを構成する相互に反対方向に回転
駆動する受けローラと切断ローラとに挟持されつつ下流
側に移送されると共に、両ローラの協働作用下に溶断シ
ールされる。そして、フィルムから溶断されたフィルム
クズは、溶断シーラの回転周速より僅かに高速の周速に
設定された下流側の第2送りローラで挟持されて、該フ
ィルムクズには常に張力が付与された状態で引出され、
フィルムの初期セット作業でのフィルムクズの破断が防
止されて安定した溶断シールが達成される。溶断シーラ
のフィルム溶断挟持位置に対し、上流側の第1送りロー
ラの第1フィルム挟持位置および下流側の第2送りロー
ラの第2フィルム挟持位置が、前記フィルム溶断挟持位
置を通るフィルム移送ラインから受けローラ側に夫々変
位しているから、溶断シーラのフィルム溶断挟持位置を
通過する前後の重合端縁部は、受けローラの外周に所定
長さ巻掛けられて高温の切断ローラから離間する位置を
通る。すなわち、前記重合端縁部は、受けローラの外周
に対して当接する上下幅に応じたフィルム溶断挟持位置
を挟む前後所要長さの面で保持されて張った状態で、両
ローラにより良好に溶断される。従って、溶断時のフィ
ルムのたるみによるフィルム移送方向に対するバックテ
ンションの発生を防止して、美麗な溶断部が得られる。In the film having the overlapping edge portions nipped by the pair of first feed rollers and transported toward the downstream side, the overlapping edge portions are rotatably driven in opposite directions constituting the fusing sealer. It is transported to the downstream side while being sandwiched between the roller and the cutting roller, and is fused and sealed by the cooperation of both rollers. Then, the film scraps melted from the film are nipped by the second feed roller on the downstream side which is set to a peripheral speed slightly higher than the peripheral speed of rotation of the melting sealer, and tension is always applied to the film scraps. Pulled out,
The film scraps are prevented from being broken during the initial setting work of the film, and a stable fusing seal is achieved. With respect to the film fusing and clamping position of the fusing sealer, the first film clamping position of the upstream first feed roller and the second film clamping position of the downstream second feed roller are from the film transfer line passing through the film fusing and clamping position. Since they are respectively displaced to the receiving roller side, the overlapping edge portions before and after passing through the film fusing and sandwiching position of the fusing sealer are wound around the outer periphery of the receiving roller for a predetermined length and separated from the high temperature cutting roller. Pass through. That is, the overlapping edge portion is satisfactorily melted by both rollers in a state in which it is held and stretched by the surfaces of a required length before and after sandwiching the film fusing and sandwiching position according to the vertical width of contact with the outer circumference of the receiving roller. To be done. Therefore, it is possible to prevent the generation of back tension in the film transport direction due to the sagging of the film at the time of fusing and to obtain a beautiful fusing part.
【0008】前記溶断シーラより小径に設定された第2
送りローラを溶断シーラに近接して配置することで、該
溶断シーラと第2送りローラの更に下流側に配置される
後工程の移送手段との離間間隔を短く設定でき、フィル
ムに供給される被包装物の受渡し移送が良好に行なわれ
る。また、耐熱性の弾性材でフィルム挟持面を構成した
第2送りローラにより、前記フィルムクズの巻取り装置
への移送は確実になされる。更に、溶断シーラのフィル
ム溶断挟持位置に対する第1送りローラおよび第2送り
ローラのフィルム挟持位置の変位量を同一に設定するこ
とで、フィルムを蛇行させることなく安定して移送する
ことができ、これによって重合端縁部の溶断シールも安
定する。A second diameter set smaller than the fusing sealer
By disposing the feed roller close to the fusing sealer, the gap between the fusing sealer and the transfer means for the subsequent process disposed further downstream of the second feed roller can be set to be short, and the film to be supplied to the film can be supplied. Good delivery and transfer of packages. Further, the second feeding roller having a film holding surface made of a heat-resistant elastic material ensures the transfer of the film waste to the winding device. Further, by setting the displacement amounts of the film feeding positions of the first feeding roller and the second feeding roller with respect to the film fusing and sandwiching position of the fusing sealer to be the same, the film can be stably transported without meandering. This also stabilizes the fusing seal at the overlap edge.
【0009】[0009]
【発明の実施の形態】次に、本発明に係る包装機におけ
る溶断シール装置につき、好適な実施例を挙げて、添付
図面を参照しながら以下説明する。BEST MODE FOR CARRYING OUT THE INVENTION Next, a fusing and sealing device in a packaging machine according to the present invention will be described below with reference to the accompanying drawings with reference to preferred embodiments.
【0010】図1は、溶断シール装置の概略構成を示す
ものであって、該装置10は、図示しない供給源から引
出されて筒状成形された筒状フィルム(フィルム)12の
下方に臨む長手方向の重合端縁部12aを挟持し、図示
しない駆動系により相互に反対方向に回転駆動されて該
フィルム12を下流側へ向けて移送する一対の第1送り
ローラ14,14を備える。この第1送りローラ14,1
4に対するフィルム移送方向下流側には、筒状フィルム
12の前記重合端縁部12aを溶断シールする溶断シー
ラ19が配設されている。この溶断シーラ19は、筒状
フィルム12の重合端縁部12aを挟んで対向配置され
る受けローラ16と切断ローラ18とから構成され、両
ローラ16,18は、図示しない駆動系により相互に反
対方向に回転駆動されると共に、受けローラ16の外周
面(重合端縁部12aの受面)に切断ローラ18に形成し
たナイフエッジ18aを所定圧力で当接するよう設定さ
れる(図3参照)。また受けローラ16は、内蔵したヒー
タ(図示せず)により筒状フィルム12の重合端縁部12
aを予熱する程度の低温に加熱され、切断ローラ18
は、内蔵したヒータ(図示せず)により受けローラ16よ
りも高温で前記重合端縁部12aを溶断可能な温度に加
熱されるようになっている。すなわち、溶断シーラ19
を構成する受けローラ16と切断ローラ18とのフィル
ム溶断挟持位置で挟持される筒状フィルム12の長手方
向の重合端縁部12aは、両ローラ16,18の協働作
用下に溶断シールされる。FIG. 1 shows a schematic structure of a fusing and sealing device. The device 10 has a length facing a lower side of a tubular film (film) 12 which is drawn from a supply source (not shown) and formed into a tubular shape. It is provided with a pair of first feed rollers 14 and 14 for sandwiching the overlapped edge portion 12a in the direction and being rotationally driven in opposite directions by a drive system (not shown) to transport the film 12 toward the downstream side. This first feed roller 14,1
4, a fusing sealer 19 for fusing and sealing the overlapped edge portion 12a of the tubular film 12 is provided on the downstream side in the film transport direction with respect to 4. The fusing sealer 19 is composed of a receiving roller 16 and a cutting roller 18 which are arranged opposite to each other with the overlapping edge portion 12a of the tubular film 12 interposed therebetween, and both rollers 16 and 18 are opposed to each other by a drive system (not shown). It is set so that the knife edge 18a formed on the cutting roller 18 comes into contact with the outer peripheral surface of the receiving roller 16 (the receiving surface of the overlapping edge portion 12a) with a predetermined pressure while being rotationally driven in the direction (see FIG. 3). Further, the receiving roller 16 is provided with a built-in heater (not shown) so that the overlapping end portion 12 of the tubular film 12 is overlapped.
a is heated to a temperature low enough to preheat the cutting roller 18
Is heated by a built-in heater (not shown) at a temperature higher than that of the receiving roller 16 to a temperature at which the overlapping edge portion 12a can be melt-cut. That is, the fusing sealer 19
The overlapping end edge portion 12a in the longitudinal direction of the tubular film 12 sandwiched at the film fusion sandwiching position of the receiving roller 16 and the cutting roller 18 constituting the above is fused and sealed by the cooperation of both rollers 16 and 18. .
【0011】前記溶断シーラ19に対するフィルム移送
方向下流側に、該溶断シーラ19で溶断された幅狭帯状
のフィルムクズ12bを挟持して溶断シーラ19から引
出すと共に巻取り装置20に向けて移送する一対の第2
送りローラ22,22が配設される。第2送りローラ2
2,22は、図1に示す如く、溶断シーラ19の両ロー
ラ16,18より小径に設定されると共に、溶断シーラ
19に近接して配置され、筒状フィルム12に供給され
た被包装物24の下流側への受渡し移送を良好に行ない
得るよう構成される。また第2送りローラ22,22
は、図示しない駆動系により溶断シーラ19における両
ローラ16,18の回転周速よりも僅かに高速の周速で
回転駆動されるよう構成され、前記フィルムクズ12b
が、溶断シーラ19と第2送りローラ22,22との間
に張った状態で移送されるようにしている。更に、一対
の第2送りローラ22,22の少なくとも一方の第2送
りローラ22の外周には、シリコンゴム等の耐熱性の弾
性材26が巻付けられて、該弾性材26によりフィルム
挟持面を構成してある。A pair of narrow strip-shaped film scraps 12b fused by the fusing sealer 19 are sandwiched between the fusing sealer 19 and the downstream side of the fusing sealer 19 so as to be pulled out from the fusing sealer 19 and transported toward the winding device 20. Second
The feed rollers 22, 22 are arranged. Second feed roller 2
As shown in FIG. 1, 2, 22 are set to have a smaller diameter than the rollers 16, 18 of the fusing sealer 19 and are arranged close to the fusing sealer 19 and supplied to the tubular film 12 to be packaged 24. Is configured so that the delivery and transfer to the downstream side can be performed well. In addition, the second feed rollers 22, 22
Is configured to be rotationally driven by a drive system (not shown) at a peripheral speed slightly higher than the peripheral speeds of the rollers 16 and 18 in the fusing sealer 19.
However, it is transferred while being stretched between the fusing sealer 19 and the second feed rollers 22, 22. Further, a heat-resistant elastic material 26 such as silicon rubber is wound around the outer periphery of at least one of the pair of second feeding rollers 22 and 22, and a film holding surface is formed by the elastic material 26. Configured.
【0012】なお、前記第1送りローラ14,14、第
2送りローラ22,22および溶断シーラ19の両ロー
ラ16,18の夫々は、対をなすローラ同士が相互に近
接・離間移動可能に構成され、ローラ同士を離間してフ
ィルム交換時等における筒状フィルム12の初期セット
作業を行ない得るよう構成される。The first feed roller 14, 14, the second feed roller 22, 22, and the rollers 16, 18 of the fusing sealer 19 are arranged such that the pair of rollers can move toward and away from each other. Then, the rollers are separated from each other so that the initial setting work of the tubular film 12 can be performed when the film is exchanged.
【0013】前記溶断シーラ19のフィルム溶断挟持位
置に対し、一対の第1送りローラ14,14の第1フィ
ルム挟持位置および一対の第2送りローラ22,22の
第2フィルム挟持位置は、図4に示すように、フィルム
溶断挟持位置を通るフィルム移送ラインから受けローラ
16側に僅かに変位するよう設定される。すなわち、溶
断シーラ19のフィルム溶断挟持位置を通過する筒状フ
ィルム12の長手方向の重合端縁部12aは、該フィル
ム溶断挟持位置の前後において受けローラ16の外周に
所定長さ巻掛けられて、高温の切断ローラ18から離間
するよう構成される。そして、このように重合端縁部1
2aを受けローラ16に巻掛けることで、該重合端縁部
12aは、受けローラ16の外周に対して当接する上下
幅に応じたフィルム溶断挟持位置を挟む前後所要長さの
面で保持され、両ローラ16,18の溶断時には重合端
縁部12aが受けローラ16の受面(外周面)で張った状
態に保持される。なお、溶断シーラ19のフィルム溶断
挟持位置に対する第1送りローラ14,14および第2
送りローラ22,22のフィルム挟持位置の変位量αは
同一に設定され、筒状フィルム12を蛇行することなく
安定して移送し得るようになっている。The first film sandwiching position of the pair of first feed rollers 14, 14 and the second film sandwiching position of the pair of second feed rollers 22, 22 with respect to the film fusion sandwiching position of the fusion sealer 19 are shown in FIG. As shown in FIG. 6, the film is set to be slightly displaced from the film transfer line passing through the film fusing and clamping position to the receiving roller 16 side. That is, the lengthwise overlapping edge portion 12a of the tubular film 12 passing through the film fusing and clamping position of the fusing sealer 19 is wound around the outer periphery of the receiving roller 16 by a predetermined length before and after the film fusing and clamping position. It is configured to be separated from the hot cutting roller 18. And thus, the overlapping edge portion 1
By wrapping the 2a around the receiving roller 16, the overlapping edge portion 12a is held by a surface of a required length before and after sandwiching the film fusing and sandwiching position corresponding to the vertical width in contact with the outer periphery of the receiving roller 16, When the rollers 16 and 18 are fused, the overlapping edge portion 12a is held in a state of being stretched by the receiving surface (outer peripheral surface) of the receiving roller 16. It should be noted that the first feed rollers 14, 14 and the second feeding roller 14 and the second position with respect to the film fusing and sandwiching position of the fusing sealer 19 are held.
The displacement amounts α of the feed rollers 22 and 22 at the film sandwiching positions are set to be the same, and the tubular film 12 can be stably transported without meandering.
【0014】前記溶断シール装置10の下方には、図2
に示す如く、前記第2送りローラ22,22から移送さ
れるフィルムクズ12bを巻取る巻取り装置20が配設
されている。また第2送りローラ22,22と巻取り装
置20との間のフィルムクズ12bの巻取り経路にはガ
イド部材28およびトラバーサ30が配設され、図1に
示すように、第2送りローラ22,22からフィルム移
送ラインと交差する方向に向けて移送されるフィルムク
ズ12bは、ガイド部材28およびトラバーサ30を介
して巻取り装置20に案内されるようになっている。な
お実施例では、フィルム移送ラインから前記切断ローラ
18が配設される側に向けてフィルムクズ12bが移送
される。Below the fusing and sealing device 10, FIG.
As shown in FIG. 3, a winding device 20 for winding the film scrap 12b transferred from the second feed rollers 22, 22 is provided. Further, a guide member 28 and a traverser 30 are arranged in the winding path of the film scrap 12b between the second feeding rollers 22 and 22 and the winding device 20, and as shown in FIG. The film scrap 12b transported from 22 in the direction intersecting the film transport line is guided to the winding device 20 via the guide member 28 and the traverser 30. In the embodiment, the film scrap 12b is transferred from the film transfer line toward the side where the cutting roller 18 is arranged.
【0015】[0015]
【実施例の作用】次に、前述した実施例に係る包装機に
おける溶断シール装置の作用につき説明する。筒状成形
されて被包装物24が供給された筒状フィルム12は、
その下方に臨む長手方向の重合端縁部12aが、相互に
反対方向に回転駆動される一対の第1送りローラ14,
14で挟持されて下流側に向けて移送される。この重合
端縁部12aは、相互に反対方向に回転駆動する前記溶
断シーラ19の受けローラ16と切断ローラ18とに挟
持されつつ下流側に移送されると共に、両ローラ16,
18の協働作用下に溶断シールされる。前述したよう
に、溶断シーラ19のフィルム溶断挟持位置に対し、上
流側の第1送りローラ14,14の第1フィルム挟持位
置は、前記フィルム移送ラインから受けローラ16側に
変位している。従って、溶断シーラ19のフィルム溶断
挟持位置を通過する直前の重合端縁部12aは、受けロ
ーラ16の外周に所定長さ巻掛けられて高温の切断ロー
ラ18から離間する位置を通る。すなわち、前記重合端
縁部12aは、受けローラ16の外周に対して当接する
上下幅に応じたフィルム溶断挟持位置を挟む前後所要長
さの面で保持され、このように重合端縁部12aを受け
ローラ16の受面(外周面)で張った状態で両ローラ1
6,18により良好に溶断される。従って、例えば腰の
ない薄手の熱収縮フィルムであっても、フィルム溶断時
のフィルムのたるみによるフィルム移送方向に対するバ
ックテンションの発生を防止して、溶断部は美麗となっ
て良好な見栄えが得られる。Next, the operation of the fusing and sealing device in the packaging machine according to the above-described embodiment will be described. The tubular film 12, which is tubularly formed and supplied with the article to be packaged 24,
A longitudinal overlapping edge portion 12a facing downward is provided with a pair of first feed rollers 14, which are rotationally driven in mutually opposite directions.
It is sandwiched by 14 and transferred toward the downstream side. The overlapping edge portion 12a is conveyed to the downstream side while being sandwiched between the receiving roller 16 and the cutting roller 18 of the fusing sealer 19 which are rotationally driven in opposite directions, and both rollers 16,
A fusing seal is provided under the cooperating action of 18. As described above, the first film sandwiching position of the upstream first feed rollers 14, 14 is displaced from the film transport line to the receiving roller 16 side with respect to the film fusion sandwiching position of the fusion sealer 19. Therefore, the overlapping edge portion 12a of the fusing sealer 19 immediately before passing through the film fusing and sandwiching position passes a position where it is wound around the outer periphery of the receiving roller 16 for a predetermined length and is separated from the high temperature cutting roller 18. That is, the overlapping edge portion 12a is held by a surface having a required front-rear length that sandwiches the film fusing and sandwiching position corresponding to the vertical width that abuts against the outer periphery of the receiving roller 16, and thus the overlapping edge portion 12a is held. Both rollers 1 with the receiving surface (outer peripheral surface) of the receiving roller 16 stretched
Sufficiently melted by 6,18. Therefore, for example, even in the case of a thin heat-shrinkable film which is not stiff, it is possible to prevent the occurrence of back tension in the film transfer direction due to the slack of the film when the film is melted, and the melted part becomes beautiful and has a good appearance. .
【0016】前記溶断シーラ19により溶断された幅狭
帯状のフィルムクズ12bは、図1に示す如く、下流側
の第2送りローラ22,22で挟持されて、前記フィル
ム移送ラインと交差する方向に向けて移送される。そし
て、このフィルムクズ12bは、前記ガイド部材28お
よびトラバーサ30を介して巻取り装置20へ案内さ
れ、該装置20に巻取られる。第2送りローラ22,2
2の第2フィルム挟持位置は、前述したように溶断シー
ラ19のフィルム溶断挟持位置に対し、前記フィルム移
送ラインから受けローラ16側に変位している。従っ
て、溶断シーラ19のフィルム溶断挟持位置を通過して
筒状フィルム12から溶断されたフィルムクズ12b
は、受けローラ16の外周に所定長さ巻掛けられて高温
の切断ローラ18から離間する位置を通ることとなる。
また第2送りローラ22,22の回転周速は、溶断シー
ラ19の回転周速より僅かに高速に設定されているか
ら、溶断シーラ19から引出されるフィルムクズ12b
は張った状態に保持され、フィルムクズ12bが高温の
切断ローラ18で加熱されて溶融したり、溶断シーラ1
9に付着するのは抑制される。また、前記溶断シーラ1
9のフィルム溶断挟持位置から第2送りローラ22,2
2の第2フィルム挟持位置までフィルムクズ12bが移
送される間に冷却がなされ、該フィルムクズ12bが溶
断熱により伸びたり、あるいは巻取り装置20に巻取ら
れる途中で破断してしまうのも防止される。As shown in FIG. 1, the narrow strip-shaped film scrap 12b melted by the melt-cut sealer 19 is nipped by the second feed rollers 22 and 22 on the downstream side, and in a direction intersecting the film transfer line. Transferred to. Then, the film scrap 12b is guided to the winding device 20 via the guide member 28 and the traverser 30 and is wound by the device 20. Second feed rollers 22,2
The second second film holding position is displaced from the film transfer line to the receiving roller 16 side with respect to the film fusing holding position of the fusing sealer 19 as described above. Therefore, the film scrap 12b that has been melted and cut from the tubular film 12 by passing through the film melt sandwiching position of the melt sealer 19
Is wound around the outer periphery of the receiving roller 16 for a predetermined length and passes through a position separated from the high temperature cutting roller 18.
Further, since the rotational peripheral speeds of the second feed rollers 22 and 22 are set to be slightly higher than the rotational peripheral speed of the fusing sealer 19, the film scrap 12b pulled out from the fusing sealer 19 is drawn.
The film scrap 12b is held in a stretched state and is heated by the high temperature cutting roller 18 to be melted, or the fusing sealer 1
Adhesion to 9 is suppressed. Also, the fusing sealer 1
From the film fusing and sandwiching position of 9 to the second feed rollers 22 and 2
It is also prevented that the film scraps 12b are cooled while being transferred to the second film holding position of No. 2, and the film scraps 12b are stretched due to thermal insulation and are not broken during being wound by the winding device 20. To be done.
【0017】なお、包装前またはフィルム交換時等にお
ける筒状フィルム12の初期セット時には、フィルムク
ズ12bの先端部は巻取り装置20にセットされていな
いが、実施例の溶断シール装置10では、溶断シーラ1
9の下流側に配設されて該溶断シーラ19の回転周速よ
り僅かに高速の周速に設定した第2送りローラ22,2
2によりフィルムクズ12bに常に張力を付与した状態
で引出すことができる。すなわち、筒状フィルム12の
溶融した溶断部が溶断シーラ19に付着することはな
く、フィルム初期セット時においてフィルムクズ10b
の先端部を巻取り装置20にセットするまで引出す間
に、該フィルムクズ10bが破断するのを防止し得る。At the time of initial setting of the tubular film 12 before packaging or when exchanging the film, the leading end of the film scrap 12b is not set on the winding device 20, but in the fusing seal device 10 of the embodiment, the fusing cutting is performed. Sheila 1
The second feed rollers 22 and 2 which are arranged on the downstream side of 9 and are set to a peripheral speed slightly higher than the peripheral speed of rotation of the fusing sealer 19.
2 allows the film scrap 12b to be pulled out in a state where tension is always applied. That is, the molten fusing part of the tubular film 12 does not adhere to the fusing sealer 19, and the film scrap 10b is initially set during the initial setting of the film.
It is possible to prevent the film scrap 10b from breaking while the leading end of the film is pulled out until it is set on the winding device 20.
【0018】なお実施例では、前記溶断シーラ19のフ
ィルム溶断挟持位置に対する第1送りローラ14,14
および第2送りローラ22,22のフィルム挟持位置の
変位量αを同一に設定しているから、筒状フィルム12
が蛇行することはなく、重合端縁部12aに安定した溶
断シールを施すことができる。また一方の第2送りロー
ラ22に耐熱性の弾性材26を巻付けているので、フィ
ルムクズ12bを確実に挟持して巻取り装置20に向け
て安定して移送し得る。In the embodiment, the first feed rollers 14 and 14 are positioned relative to the film fusing and sandwiching position of the fusing sealer 19.
Since the displacement amount α of the film clamping position of the second feed rollers 22 and 22 is set to be the same, the tubular film 12
Does not meander, and a stable fusing seal can be applied to the overlapping edge portion 12a. Further, since the heat-resistant elastic material 26 is wound around the second feeding roller 22 on one side, the film scrap 12b can be reliably sandwiched and stably transferred to the winding device 20.
【0019】前記重合端縁部12aが溶断シールされた
筒状フィルム12に供給されている被包装物24は、該
筒状フィルム12と共に下流側に配設された後工程の移
送手段(図示せず)に受渡されて引続き下流側に移送され
る。この場合において、前記第2送りローラ22,22
を小径でかつ溶断シーラ19に近接して配置したので、
該溶断シーラ19と移送手段との離間間隔を短かく設定
でき、被包装物24の受渡しは良好に行なわれる。The object to be packaged 24, which is supplied to the tubular film 12 with the overlapped edge portion 12a being fusion-sealed, is disposed in the downstream side together with the tubular film 12 and is a transfer means in a subsequent step (not shown). It will be delivered to the downstream side. In this case, the second feed rollers 22, 22
Since it has a small diameter and is placed close to the fusing sealer 19,
The separation distance between the fusing sealer 19 and the transfer means can be set to be short, and the article to be packaged 24 can be delivered and received satisfactorily.
【0020】実施例では、筒状フィルムの下方に臨む長
手方向の重合端縁部を溶断シールする構成の包装機を挙
げて説明したが、筒状フィルムの側方に長手方向の重合
端縁部が位置するよう構成された包装機にも本願発明の
溶断シール装置を適用可能である。すなわち、各ローラ
の回転軸を水平に配置することで対応できる。また、溶
断シーラのフィルム溶断挟持位置に対する、第1送りロ
ーラの第1フィルム挟持位置の変位量と、第2送りロー
ラのフィルム挟持位置の変位量とは、筒状フィルムを蛇
行することなく移送し得る範囲内であれば同一でなくて
もよい。更に、一対の第2送りローラの両方に耐熱性の
弾性材を巻付けてフィルム挟持面としてもよい。なお、
フィルムクズは巻取り装置に巻取って回収するものの他
に、エア吸引等によって外部の回収箱等へ排出する構成
を採用可能である。In the examples, the packaging machine having a structure in which the longitudinal overlapping edge portion facing the lower side of the tubular film is fused and sealed is described. However, the longitudinal overlapping edge portion is provided laterally of the tubular film. The fusing and sealing device of the present invention can also be applied to a packaging machine configured to position. That is, this can be dealt with by arranging the rotation axes of the rollers horizontally. Further, the displacement amount of the first film holding position of the first feed roller and the displacement amount of the film holding position of the second feed roller with respect to the film fusing holding position of the fusing sealer conveys the tubular film without meandering. It does not have to be the same as long as it is within the range. Further, a heat-resistant elastic material may be wound around both the pair of second feed rollers to form a film holding surface. In addition,
In addition to the film scraps being wound up on a winding device and collected, it is possible to adopt a configuration in which they are discharged to an external collecting box or the like by air suction or the like.
【0021】[0021]
【発明の効果】以上説明した如く、本発明の請求項1に
係る包装機における溶断シール装置では、フィルムの重
合端縁部を、受けローラの外周に対して当接する上下幅
に応じたフィルム溶断挟持位置を挟む前後所要長さの面
で保持して張った状態で溶断し得るから、安定した溶断
シールが達成される。すなわち、フィルムの性状に左右
されずに安定して溶断シールを行なうことができ、溶断
部が美麗となって見栄えを良好なものとし得る。また、
溶断されたフィルムクズを第2送りローラに至るまでに
冷却することができ、該フィルムクズが溶断熱により伸
びたり、あるいは巻取り装置で巻取られる途中で破断し
てしまうのを防止し得る。更に、包装前またはフィルム
交換時等におけるフィルムの初期セット時には、溶断シ
ーラの回転周速より僅かに高速の周速に設定した第2送
りローラによりフィルムクズに常に張力を付与した状態
で引出すことができ、フィルムクズの先端部を巻取り装
置にセットするまで引出す間に、該フィルムクズが破断
するのを防止することができる。As described above, in the fusing and sealing device in the packaging machine according to the first aspect of the present invention, the film fusing according to the vertical width at which the overlapping edge portion of the film contacts the outer circumference of the receiving roller. A stable fusing seal can be achieved because it can be melted in a stretched state while being held by the surfaces having a required length before and after the nipping position. That is, the fusing seal can be stably performed regardless of the properties of the film, and the fusing part can be made beautiful and have a good appearance. Also,
It is possible to cool the blown by the film debris up to the second feed roller, the film debris or elongation by fusing heat is had prevents from being broken on the way to be wound by the winding device obtain. Further, at the time of initial setting of the film before packaging or at the time of film exchange, it is possible to pull out the film waste with tension always applied by the second feed roller set to a peripheral speed slightly higher than the peripheral speed of rotation of the fusing sealer. Therefore, it is possible to prevent the film scraps from being broken while the leading ends of the film scraps are being drawn out until they are set in the winding device.
【0022】本発明の請求項2に係る溶断シール装置で
は、第2送りローラを、溶断シーラより小径で、かつ近
接して配置しているから、フィルムで包装された被包装
物の下流側への受渡し移送を良好に行なうことが可能と
なる。また本発明の請求項3に係る溶断シール装置で
は、一対の第2送りローラの少なくとも一方のローラの
フィルム挟持面を、耐熱性の弾性材により構成したの
で、溶断されたフィルムクズの巻取り装置への移送をよ
り安定して行ない得る。更に、本発明の請求項4に係る
溶断シール装置では、溶断シーラのフィルム溶断挟持位
置に対する第1送りローラおよび第2送りローラのフィ
ルム挟持位置の変位量を同一に設定したから、フィルム
が蛇行することはなく、その重合端縁部に安定した溶断
シールを施すことができる。In the fusing and sealing device according to the second aspect of the present invention, since the second feed roller has a smaller diameter than the fusing sealer and is arranged closer to the fusing sealer, the second feed roller is disposed on the downstream side of the packaged object wrapped with the film. It is possible to satisfactorily perform the delivery and transfer of the. Further, in the fusing and sealing device according to claim 3 of the present invention, since the film sandwiching surface of at least one of the pair of second feed rollers is made of a heat-resistant elastic material, a device for winding the fusing film waste The transfer to can be performed more stably. Further, in the fusing seal device according to the fourth aspect of the present invention, since the displacement amounts of the film feeding positions of the first feeding roller and the second feeding roller with respect to the film fusing holding position of the fusing sealer are set to be the same, the film meanders. As a result, a stable fusing seal can be applied to the overlapping edge portion.
【図1】本発明の好適な実施例に係る溶断シール装置を
示す概略構成図である。FIG. 1 is a schematic configuration diagram showing a fusing and sealing device according to a preferred embodiment of the present invention.
【図2】実施例に係る溶断シール装置および巻取り装置
を示す概略構成図である。FIG. 2 is a schematic configuration diagram showing a fusing seal device and a winding device according to an embodiment.
【図3】実施例に係る溶断シーラを示す概略構成図であ
る。FIG. 3 is a schematic configuration diagram showing a fusing sealer according to an embodiment.
【図4】実施例に係る溶断シール装置の各ローラにおけ
るフィルム挟持位置の関係を示す説明図である。FIG. 4 is an explanatory diagram showing a relationship between film holding positions in each roller of the fusing seal device according to the embodiment.
12 筒状フィルム(フィルム) 12a 重合端縁部 12b フィルムクズ 14 第1送りローラ 16 受けローラ 18 切断ローラ 20 巻取り装置 22 第2送りローラ 26 弾性材 α 変位量12 tubular film (film) 12a overlapping edge 12b film scrap 14 first feed roller 16 receiving roller 18 cutting roller 20 winding device 22 second feed roller 26 elastic material α displacement amount
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平10−86903(JP,A) 実開 昭64−23405(JP,U) 実開 平7−21506(JP,U) (58)調査した分野(Int.Cl.7,DB名) B65B 51/10 B65B 51/26 - 51/30 B65B 9/00 - 9/24 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Laid-Open No. 10-86903 (JP, A) Actual exploitation 64-23405 (JP, U) Actual exploitation Flat 7-21506 (JP, U) (58) Field (Int.Cl. 7 , DB name) B65B 51/10 B65B 51/26-51/30 B65B 9/00-9/24
Claims (4)
シールする包装機における溶断シール装置であって、 相互に反対方向に回転駆動され、前記フィルム(12)の重
合端縁部(12a)を挟持して下流側に向けて該フィルム(1
2)を移送する一対の第1送りローラ(14,14)と、 前記第1送りローラ(14,14)に対してフィルム移送方向
下流側に設けられ、前記フィルム(12)の重合端縁部(12
a)を挟持して相互に反対方向に回転駆動される加熱され
た受けローラ(16)および受けローラ(16)よりも高温に加
熱された切断ローラ(18)からなる溶断シーラ(19)と、 前記溶断シーラ(19)に対してフィルム移送方向下流側に
設けられ、該溶断シーラ(19)の回転周速よりも僅かに高
速の周速で回転駆動され、溶断シーラ(19)により溶断さ
れた帯状のフィルムクズ(12b)を挟持して引出す一対の
第2送りローラ(22,22)とからなり、 前記溶断シーラ(19)のフィルム溶断挟持位置に対し、一
対の第1送りローラ(14,14)の第1フィルム挟持位置お
よび一対の第2送りローラ(22,22)の第2フィルム挟持
位置を、フィルム溶断挟持位置を通るフィルム移送ライ
ンから受けローラ(16)側に変位させ、前記フィルム重合
端縁部(12a)を受けローラ(16)に巻掛けて該受けローラ
(16)の受面で張った状態に保持し得るように構成したこ
とを特徴とする包装機における溶断シール装置。1. A fusing and sealing device in a packaging machine for fusing and sealing a superposed edge portion (12a) of a film (12), wherein the superposed edge portion of the film (12) is driven to rotate in mutually opposite directions. (12a) is sandwiched and the film (1
2) a pair of first feed rollers (14, 14) for transporting the film, and a stacking edge portion of the film (12) provided on the downstream side in the film transport direction with respect to the first feed rollers (14, 14) (12
A fusing sealer (19) consisting of a heated receiving roller (16) sandwiching a) and driven to rotate in mutually opposite directions, and a cutting roller (18) heated to a temperature higher than the receiving roller (16), It was provided on the downstream side of the fusing sealer (19) in the film transfer direction, was rotationally driven at a peripheral speed slightly higher than the peripheral speed of rotation of the fusing sealer (19), and was fused by the fusing sealer (19). It is composed of a pair of second feed rollers (22, 22) for sandwiching and pulling out the strip-shaped film waste (12b), and a pair of first feed rollers (14, 14) with respect to the film fusion sandwiching position of the fusion sealer (19). a first second film nipping position of the film nipping position and the pair of second feed rollers (22, 22) of 14), is displaced receiving the roller (16) side from the film transport line through the film fusing nip position, the film polymerization
The edge roller (12a) is wrapped around the receiving roller (16)
A fusing and sealing device in a packaging machine, characterized in that it can be held in a stretched state by the receiving surface of (16) .
シーラ(19)より小径で、該溶断シーラ(19)に近接して配
置されている請求項1記載の包装機における溶断シール
装置。2. The fusing in the packaging machine according to claim 1, wherein the second feed roller (22, 22) has a diameter smaller than that of the fusing sealer (19) and is arranged in the vicinity of the fusing sealer (19). Sealing device.
くとも一方のローラ(22)のフィルム挟持面は、耐熱性の
弾性材(26)で構成される請求項1または2記載の包装機
における溶断シール装置。3. The film sandwiching surface of at least one roller (22) of the pair of second feed rollers (22, 22) is made of a heat resistant elastic material (26). A fusing and sealing device in a packaging machine.
位置に対する第1送りローラ(14,14)および第2送りロ
ーラ(22,22)のフィルム挟持位置の変位量(α)は同一に
設定される請求項1〜3の何れかに記載の包装機におけ
る溶断シール装置。4. The displacement amount (α) of the film feeding position of the first feeding roller (14, 14) and the second feeding roller (22, 22) with respect to the film fusing holding position of the fusing sealer (19) is set to be the same. The fusion cutting sealing device in the packaging machine according to any one of claims 1 to 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12044899A JP3486861B2 (en) | 1999-04-27 | 1999-04-27 | Fusing seal device in packaging machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12044899A JP3486861B2 (en) | 1999-04-27 | 1999-04-27 | Fusing seal device in packaging machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000309309A JP2000309309A (en) | 2000-11-07 |
JP3486861B2 true JP3486861B2 (en) | 2004-01-13 |
Family
ID=14786459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12044899A Expired - Lifetime JP3486861B2 (en) | 1999-04-27 | 1999-04-27 | Fusing seal device in packaging machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3486861B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108275357A (en) * | 2018-03-14 | 2018-07-13 | 刘永兴 | A kind of dress object closing device and method for soft packaging bag packaging |
-
1999
- 1999-04-27 JP JP12044899A patent/JP3486861B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2000309309A (en) | 2000-11-07 |
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