JPH04339708A - Bag making-filling-packaging device - Google Patents
Bag making-filling-packaging deviceInfo
- Publication number
- JPH04339708A JPH04339708A JP10939691A JP10939691A JPH04339708A JP H04339708 A JPH04339708 A JP H04339708A JP 10939691 A JP10939691 A JP 10939691A JP 10939691 A JP10939691 A JP 10939691A JP H04339708 A JPH04339708 A JP H04339708A
- Authority
- JP
- Japan
- Prior art keywords
- web
- feeding
- differential gear
- tension
- gear mechanism
- 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
- 238000004806 packaging method and process Methods 0.000 title claims description 9
- 238000001514 detection method Methods 0.000 claims description 21
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000007423 decrease Effects 0.000 abstract description 10
- 230000002950 deficient Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Containers And Plastic Fillers For Packaging (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、チューブ成形体の対向
する外周両側に一対の繰り出し部を夫々ウェブの両側部
に当接させて設け、これら両繰り出し部の間欠作動によ
りロールから供給されるウェブをチューブ成形体に巻付
けて、チューブ状に形成しながら垂下させ、このチュー
ブ状ウェブ内に被包装物を充填する製袋充填包装装置に
関する。[Industrial Application Field] The present invention provides a pair of feeding parts on opposite sides of the outer periphery of a tube molded body, each of which is in contact with both sides of the web, and is fed from a roll by intermittent operation of both feeding parts. The present invention relates to a bag-forming-filling-packaging device that wraps a web around a tube-shaped body and allows it to hang down while forming a tube-shaped body, and fills an object to be packaged into the tube-shaped web.
【０００２】0002
【従来の技術】従来、この種の製袋充填包装装置として
、例えば特開昭６２−１５８６３０号公報に開示される
如く、チューブ成形体の外周両側に配置される両繰り出
し部の駆動軸を、クラッチ及びブレーキを介してモータ
に連係し、該モータの駆動により両繰り出し部を間欠作
動させることにより、チューブ成形体に巻付けられたウ
ェブの両側部を下方へ平行に繰り出し、これに伴いロー
ラからウェブが引出されてチューブ成形体に巻付けられ
、その両側縁を重ね合せて縦シール部により溶着しチュ
ーブ状に形成するものがある。2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Application Laid-open No. 62-158630, this type of bag-forming-filling-packaging device has been known to have a drive shaft for both feeding portions disposed on both sides of the outer periphery of a tube formed body. It is connected to a motor via a clutch and a brake, and by driving the motor to intermittently operate both feeding parts, both sides of the web wound around the tube molded body are fed out downward in parallel, and as a result, the web is drawn out from the roller. In some webs, the web is pulled out and wound around a tube molded body, and the both side edges of the web are overlapped and welded by vertical seals to form a tube shape.
【０００３】0003
【発明が解決しようとする課題】しかし乍ら、このよう
な製袋充填包装装置では、両繰り出し部が同一速度で同
一量回転するため、繰り出し部の表面が汚れたり、ウェ
ブの幅方向両側部の繰り出し抵抗が異なって、一方の繰
り出し部がウェブに対しスリップすると、他方の繰り出
し部だけでウェブの片側のみで強引に引っ張り繰り出す
ことになって、ウェブが幅方向へ傾き、これに伴い強引
に繰り出されたウェブ片側の繰り出し抵抗が増大して、
これと当接する反対側の繰り出し部がスリップし易くな
り、これらが繰り返された結果、ウェブが蛇行して不良
品が発生するという問題がある。[Problems to be Solved by the Invention] However, in such a bag making, filling and packaging apparatus, since both the feeding sections rotate at the same speed and the same amount, the surface of the feeding section may become dirty, and both sides of the web in the width direction may become dirty. If the unwinding resistance is different and one of the unwinding sections slips against the web, the other unwinding section will forcibly pull and unwind the web on one side, causing the web to tilt in the width direction, causing the web to forcibly pull out. The unrolling resistance on one side of the unrolled web increases,
The feeding portion on the opposite side that comes into contact with this tends to slip, and as a result of this being repeated, there is a problem in that the web meanderes and defective products occur.
【０００４】不良品の発生を少なくするには、ウェブが
蛇行を開始する度に、運転を停止して再調整しなければ
ならず、手間がかかると共に稼働率が低下する。[0004] In order to reduce the occurrence of defective products, it is necessary to stop the operation and readjust the web every time the web starts meandering, which is time-consuming and reduces the operating rate.
【０００５】またウェブの蛇行原因は、上述した繰り出
し部のスリップ以外に、ロールからウェブが引出されて
チューブ成形体に巻付けられるまでの間にも、例えばロ
ールの左右巻き径の違い、ウェブの厚さ不均一、ウェブ
の弛みやばたつき等、多数存在し、これらの蛇行原因を
完全に取除くことは不可能であるという問題もある。[0005] In addition to the above-mentioned slippage at the feeding section, web meandering is caused by factors such as the difference in the left and right winding diameters of the rolls, the web There are many problems such as non-uniform thickness, web slack and flapping, and it is impossible to completely eliminate these causes of meandering.
【０００６】本発明は斯る従来事情に鑑み、繰り出し部
のスリップ及び繰り出し抵抗大によるウェブの蛇行を繰
り出し位置で修正することを目的とし、ロールから繰り
出し部まで供給される間に発生するウェブの蛇行を繰り
出し位置で修正することを他の目的とする。[0006] In view of the conventional circumstances, the present invention aims to correct slips in the feeding section and meandering of the web due to large feeding resistance at the feeding position, and to correct the meandering of the web that occurs while being fed from the roll to the feeding section. Another purpose is to correct meandering at the feeding position.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に本発明が講ずる技術的手段は、両繰り出し部の駆動軸
をディファレンシャルギャ機構の出力端に夫々連係し、
このディファレンシャルギャ機構の入力端を駆動源に連
係したことを特徴とするものである。[Means for Solving the Problems] The technical means taken by the present invention to solve the above problems is to link the drive shafts of both feeding parts to the output ends of the differential gear mechanism, respectively,
This differential gear mechanism is characterized in that its input end is linked to a drive source.
【０００８】そして、両繰り出し部のウェブ繰り出し方
向上流側に、ウェブの繰り出し方向と直交する幅方向へ
の位置ズレを検出する検出部を設け、各繰り出し部の駆
動軸を回転減速させるブレーキを夫々接離動自在に設け
ると共に、上記検出部から出力される検出信号に基づい
て、位置ズレした側に位置するブレーキを接動させる制
御部を設けることが好ましい。[0008] A detection unit for detecting a positional shift in the width direction perpendicular to the web feeding direction is provided on the upstream side of both feeding units in the web feeding direction, and a brake is provided for rotationally decelerating the drive shaft of each feeding unit. It is preferable to provide a controller so as to be able to freely move toward and away from the brake, and also to cause a brake located on the displaced side to engage based on a detection signal output from the detector.
【０００９】[0009]
【作用】本発明は上記技術的手段によれば、一方の繰り
出し部がスリップしてその摩擦抵抗が低下したり、或い
はウェブ片側の張力が反対側の張力に比べ小さくなって
、一方の駆動軸の回転数が増えることにより、ディファ
レンシャルギャ機構の作動でこの回転数が増した分だけ
、他方の駆動軸の回転数を減らしてウェブのスリップし
ない側、又は張力の大きい側の繰り出し量が減少し、そ
の後にスリップがなくなったり、ウェブ両側部の張力に
差がなくなれば、両駆動軸が同速回転してウェブ両側部
が均等に繰り出されるものである。[Operation] According to the above-mentioned technical means, the present invention provides that one of the feeding portions slips and its frictional resistance decreases, or the tension on one side of the web becomes smaller than the tension on the other side, causing one of the drive shafts to slip. As the number of rotations increases, the number of rotations of the other drive shaft is reduced by the amount that the number of rotations has increased due to the operation of the differential gear mechanism, and the amount of feed on the non-slip side of the web or the side with high tension is reduced. After that, if there is no slippage or there is no difference in tension between the two sides of the web, both drive shafts rotate at the same speed and both sides of the web are unwound equally.
【００１０】そして、ウェブが幅方向へ傾いて繰り出し
部に供給され、その位置ズレを検出部が検出して位置ズ
レした方のブレーキを接動させることにより、位置ズレ
した方の駆動軸の回転が減速し、その減速した分だけ反
対側の駆動軸の回転を加速してウェブが位置ズレした方
より多く繰り出され、ウェブが位置ズレした方向と逆方
向へ強制的に移動し、その後に検出部が検出しなくなれ
ばブレーキを離動させて、ウェブ両端部が均等に繰り出
されるものである。[0010] Then, the web is supplied to the feeding section with an inclination in the width direction, and the detecting section detects the positional deviation and engages the brake of the side that has deviated, thereby rotating the drive shaft of the side that has deviated. is decelerated, and the rotation of the drive shaft on the opposite side is accelerated by the amount of deceleration, so that the web is fed out more than the one in which the web was misaligned, and the web is forcibly moved in the opposite direction to the direction in which it was misaligned, and then detected. When the web is no longer detected, the brake is released and both ends of the web are unrolled equally.
【００１１】[0011]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。この実施例は図１及び図２に示す如く、チュー
ブ成形体Ａの外周両側に繰り出し部１として繰り出しベ
ルトを、夫々チューブ成形体Ａに巻付けられたウェブＷ
の幅方向両側部Ｗ１，Ｗ１に当接させて配設し、これら
両繰り出しベルト１，１の平行な駆動軸１ａ，１ａと直
交してディファレンシャルギャ機構２の出力端である出
力軸２ａ，２ａを夫々一直線上に軸支すると共に、上記
駆動軸１ａ，１ａの基端と出力軸２ａ，２ａの中間部と
をかさ歯車１ｂ，１ｂで連係させると共に、ウェブＷの
幅方向両側縁Ｗ２，Ｗ２をチューブ成形体Ａから突出さ
せて重ね合わせ、該重ね合わせ部分Ｗ３を縦シール部Ｂ
により挾み込んで熱シールするものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, as shown in FIGS. 1 and 2, a feeding belt is provided as a feeding section 1 on both sides of the outer periphery of a tube formed body A, and a web W wound around the tube formed body A is used.
Output shafts 2a, 2a, which are the output ends of the differential gear mechanism 2, are disposed in contact with both sides W1, W1 in the width direction of The base ends of the drive shafts 1a, 1a and the intermediate portions of the output shafts 2a, 2a are linked by bevel gears 1b, 1b, and both widthwise side edges W2, W2 of the web W are supported in a straight line. are made to protrude from the tube molded body A and overlapped, and the overlapped part W3 is formed into a vertical seal part B.
It is sandwiched and heat sealed.
【００１２】ディファレンシャルギャ機構２は、一直線
上に配置される出力軸２ａ，２ａの対向する先端に接近
して固着した主動かさ歯車２ｂ，２ｂと、これら両主動
かさ歯車２ｂ，２ｂのまわりに回転自在に配置されて駆
動源３と連係する入力端である入力輪環２ｃと、この入
力輪環２ｃの内周に軸着されて上記主力かさ歯車２ａ，
２ａと対向状に噛合する従動かさ歯車２ｄ，２ｄとから
なる従来周知構造の差動歯車装置であり、駆動源３から
の回転が入力輪環２ｃに伝わり従動かさ歯車２ｄ，２ｄ
を経て主動かさ歯車２ｂ，２ｂに伝わって両出力動２ａ
，２ａを回転させる。そして、これら両出力軸２ａ，２
ａに略同等の回転抵抗がかかる場合には、両出力軸２ａ
，２ａの回転数が同じで従動かさ歯車２ｄ，２ｄは回転
せず、一方の出力軸２ａの回転抵抗が小さくなって回転
数が増えた場合には、従動かさ歯車２ｄ，２ｄが互いに
逆方向へ回転して、その増えた分だけ他方の出力軸２ａ
の回転数を減らす。The differential gear mechanism 2 consists of main drive gears 2b, 2b fixed close to opposing ends of output shafts 2a, 2a arranged in a straight line, and a mechanism that rotates around these main drive gears 2b, 2b. An input ring 2c, which is an input end freely arranged and linked to the drive source 3, and the main power bevel gear 2a, which is pivotally attached to the inner circumference of the input ring 2c.
This is a differential gear device of a conventionally well-known structure consisting of driven bevel gears 2d and 2d that mesh with the driven bevel gears 2a and 2a in an opposing manner.
is transmitted to the main bevel gears 2b, 2b, and both output movements 2a
, 2a. And these two output shafts 2a, 2
If approximately the same rotational resistance is applied to a, both output shafts 2a
, 2a are the same, the driven bevel gears 2d, 2d do not rotate, and when the rotational resistance of one output shaft 2a becomes smaller and the rotational speed increases, the driven bevel gears 2d, 2d move in opposite directions. , and the other output shaft 2a rotates by the increased amount.
Reduce the rotation speed.
【００１３】本実施例の場合には駆動源３が例えばサー
ボモータ等であり、該駆動源３と入力輪環２ｃとをタイ
ミングベルト３ａで連係している。In this embodiment, the drive source 3 is, for example, a servo motor or the like, and the drive source 3 and the input ring 2c are linked by a timing belt 3a.
【００１４】また、これら両繰り出しベルト１，１のウ
ェブＷ繰り出し方向上流側には、ウェブＷの繰り出し方
向と直交する幅方向への位置ズレを検出する検出部４を
設ける。Further, on the upstream side of both of the feeding belts 1, 1 in the direction in which the web W is fed out, there is provided a detection section 4 for detecting a positional shift in the width direction perpendicular to the feeding direction of the web W.
【００１５】検出部４は本実施例の場合、反射型光電管
であり、この反射型光電管を図２及び図３に示す如くチ
ューブ成形体Ａの上端に配設したセーラＡ１の直下に、
チューブ成形体Ａに巻付けられて平行に突出するウェブ
Ｗの両側縁Ｗ２，Ｗ２と夫々対向して一対配設すると共
に、これら両側縁Ｗ２，Ｗ２の間に反射し難い材質で形
成した板Ａ２を介在し、ウェブＷの幅方向への位置ズレ
に伴って一方の側縁Ｗ２が張り出ることにより、これと
対向する反射型光電管４が検出して検出信号を制御部５
へ出力する。In the case of this embodiment, the detection section 4 is a reflection type phototube, and this reflection type phototube is placed directly under the sailor A1 disposed at the upper end of the tube molded body A as shown in FIGS. 2 and 3.
A pair of plates A2 are arranged to face the opposite side edges W2, W2 of the web W wound around the tube molded body A and protrude in parallel, and are formed of a material that is difficult to reflect between these side edges W2, W2. As one side edge W2 protrudes as the web W shifts in the width direction, the reflective phototube 4 facing the side edge W2 detects the side edge W2 and sends a detection signal to the control unit 5.
Output to.
【００１６】制御部５は上記検出部４，４及び後述する
一対のブレーキ６，６と電気的に接続し、どちらか一方
の検出器４から検出信号を連続して設定時間以上入力す
ることにより、張り出して検出されたウェブ側縁Ｗ２と
同じ側に配設したブレーキ６へ作動信号を出力させる。The control section 5 is electrically connected to the detection sections 4, 4 and a pair of brakes 6, 6 to be described later, and by continuously inputting a detection signal from one of the detectors 4 for a set time or longer. , an actuation signal is output to the brake 6 disposed on the same side as the web side edge W2 whose overhang is detected.
【００１７】ブレーキ６，６は、両繰り出しベルト１，
１の駆動軸１ａ，１ａを別々に回転減速させるもので、
本実施例の場合、上記ディファレンシャルギャ機構２の
両出力軸２ａ，２ａに対してエアシリンダ６ａ，６ａの
先端に設けた押圧面６ｂ，６ｂを夫々接離動自在に設け
、制御部５からどちらか一方のエアシリンダ６ａに作動
信号を入力することにより、該エアシリンダ６ａを伸長
して押圧面６ｂを出力軸６ｂに接動し圧接させ、この作
動信号の入力が停止すると同時にエアシリンダ６ａを圧
縮して押圧面６ｂを出力軸６ｂから離動させる。[0017] The brakes 6, 6 are connected to both feeding belts 1,
The drive shafts 1a and 1a of 1 are rotated and decelerated separately,
In the case of this embodiment, the pressure surfaces 6b, 6b provided at the tips of the air cylinders 6a, 6a are provided so as to be movable toward and away from the output shafts 2a, 2a of the differential gear mechanism 2, respectively, and By inputting an actuation signal to one of the air cylinders 6a, the air cylinder 6a is extended and the pressing surface 6b is brought into pressure contact with the output shaft 6b, and at the same time when the input of this actuation signal is stopped, the air cylinder 6a is expanded. Compression is performed to move the pressing surface 6b away from the output shaft 6b.
【００１８】次に、斯る製袋充填包装装置の作動につい
て説明する。先ず、両繰り出しベルト１，１の間欠作動
によりロールからチューブ成形体ＡへウェブＷが幅方向
へ傾かずに引出されている状態で、これら繰り出しベル
ト１，１の表面とウェブＷの両側部Ｗ１，Ｗ１との間に
、汚れによるスリップの発生がなく、しかもウェブ両側
部Ｗ１，Ｗ１に張力差がなく夫々の繰り出し抵抗が略同
じの場合には、駆動源３の回転がディファレンシャルギ
ャ機構２の入力輪環２ｃ、従動かさ歯車２ｄ，２ｄ、主
動かさ歯車２ｂ，２ｂを順次経て両繰り出しベルト１，
１の駆動軸１ａ，１ａを同速で回転し、ウェブＷの両側
部Ｗ１，Ｗ１が下方へ同一量ずつ繰り出される。Next, the operation of the bag making, filling and packaging apparatus will be explained. First, while the web W is being pulled out from the roll to the tube formed body A without tilting in the width direction by the intermittent operation of both the feeding belts 1, 1, the surfaces of the feeding belts 1, 1 and both sides W1 of the web W are , W1, and when there is no slippage due to dirt, and there is no tension difference between the web side parts W1 and W1, and the respective feeding resistances are approximately the same, the rotation of the drive source 3 is controlled by the rotation of the differential gear mechanism 2. The input ring 2c, the driven helical gears 2d, 2d, and the main helical gears 2b, 2b are sequentially passed through to both the feeding belts 1,
The two drive shafts 1a, 1a are rotated at the same speed, and both sides W1, W1 of the web W are fed out downward by the same amount.
【００１９】このウェブＷの繰り出し中において、例え
ば汚れ等の異物により一方の繰り出しベルト１とウェブ
の一側部Ｗ１との間にスリップが発生した場合には、ス
リップした側の繰り出しベルト１の摩擦抵抗が低下して
その駆動軸１ａの回転数が増え、これに伴って該駆動軸
１ａと連係する一方の出力軸２ａ及び主動かさ歯車２ｂ
の回転数も増える。During the feeding of the web W, if a slip occurs between one feeding belt 1 and one side W1 of the web due to foreign matter such as dirt, the friction of the feeding belt 1 on the slipping side As the resistance decreases, the rotational speed of the drive shaft 1a increases, and as a result, one output shaft 2a and the main moving gear 2b that are linked to the drive shaft 1a.
The number of revolutions will also increase.
【００２０】これにより、作動かさ歯車２ｄ，２ｄが夫
々反対方向へ回転して、スリップした方の主動かさ歯車
２ｂの回転数が増えた分だけ、スリップしない方の主動
かさ歯車２ｂ及び出力軸２ａの回転数を減らし、スリッ
プしない方の繰り出しベルト１の駆動軸１ａの回転数も
減って繰り出し量が減少する。As a result, the actuating bevel gears 2d, 2d rotate in opposite directions, and the number of rotations of the main bevel gear 2b that slips increases by the amount that the main bevel gear 2b that does not slip and the output shaft 2a rotate. The rotation speed of the drive shaft 1a of the non-slip feed-out belt 1 is also reduced, and the feed amount is reduced.
【００２１】従って、一方の繰り出しベルト１が滑って
摩擦トルクが低下しても、他方の繰り出しベルト１で強
引に引っ張ることをせず、ウェブＷの蛇行が防止される
。Therefore, even if one of the feeding belts 1 slips and the friction torque decreases, the other feeding belt 1 does not forcefully pull the web W, thereby preventing the web W from meandering.
【００２２】その後、スリップがなくなれば、スリップ
していた方の繰り出しベルト１の駆動軸１ａの回転数が
減り、この減った分だけスリップしなかった方の駆動軸
１ａの回転数が増えて、両繰り出しベルト１，１の繰り
出し量が同じに戻る。After that, when the slip disappears, the rotational speed of the drive shaft 1a of the feeding belt 1 that was slipping decreases, and the rotational speed of the drive shaft 1a that did not slip increases by the amount of this decrease. The feeding amounts of both feeding belts 1, 1 return to the same amount.
【００２３】更に、ウェブＷの繰り出し中においてその
両側部Ｗ１，Ｗ１に張力差が発生して、夫々の繰り出し
抵抗が変化した場合には、張力が小さく弛んだ状態の繰
り出し抵抗が小さいウェブ一側部Ｗ１と当接する繰り出
しベルト１の駆動軸１ａの回転数が増えると共に、張力
が大きく張った状態の繰り出し抵抗が大きいウェブ他側
部Ｗ１と当接する繰り出しベルト１の駆動軸１ａの回転
数が減り、弛んだ方のウェブ一側部Ｗ１側の繰り出し量
が増大し、その増大した分だけ張った方のウェブ他側部
Ｗ１の繰り出し量が減少する。Furthermore, if a difference in tension occurs between both sides W1, W1 of the web W while the web W is being fed out, and the respective feeding resistances change, the one side of the web where the tension is low and the feeding resistance is low in the relaxed state. The rotation speed of the drive shaft 1a of the feed-out belt 1 that comes into contact with the part W1 increases, and the rotation speed of the drive shaft 1a of the feed-out belt 1 that comes into contact with the other side W1 of the web where the tension is high and the feeding resistance is large is decreased. , the amount of payout of one side of the web W1 that is slack increases, and the amount of payout of the other side W1 of the web that is taut decreases by the increased amount.
【００２４】その結果、ウェブＷの両側部Ｗ１，Ｗ１の
張力差はなくなり、これにより両繰り出しベルト１，１
の繰り出し量も同じに戻る。As a result, the difference in tension between the two sides W1, W1 of the web W disappears, and as a result, the tension between the two feeding belts 1, 1
The amount of extension will also return to the same amount.
【００２５】一方、ロールからチューブ成形体Ａへウェ
ブＷが幅方向へ傾いて引出される場合には、これに伴い
幅方向へ張り出したウェブ一側縁Ｗ２を、これと対向す
る一方の検出部４が検出して検出信号を制御部５へ出力
し、同じ側のブレーキ６が出力軸２ａに接動し、張り出
し側へ移動したウェブ一側部Ｗ１と当接する繰り出しベ
ルト１の駆動軸１ａが回転減速する。On the other hand, when the web W is pulled out from the roll to the tube formed body A with an inclination in the width direction, one side edge W2 of the web that protrudes in the width direction is detected by one of the detecting portions opposite thereto. 4 detects and outputs a detection signal to the control unit 5, the brake 6 on the same side moves in contact with the output shaft 2a, and the drive shaft 1a of the feeding belt 1 that comes into contact with the one side W1 of the web that has moved toward the overhang side Rotation slows down.
【００２６】これにより、張り出した方の繰り出し量が
減少すると同時に、これと反対側に位置する引っ込んだ
方の繰り出し量が増大して、ウェブＷが引っ込み側へ移
動し、張り出したウェブ一側縁Ｗ２が徐々に引っ込み、
これに伴って引っ込んだウェブ他側縁Ｗ２が徐々に張り
出し、ついにはこれら両側縁Ｗ２，Ｗ２の張り出し量が
一致して、上記検出部４からの検知信号出力がなくなり
、ブレーキ６が出力軸２ａより離動する。[0026] As a result, the amount of payout of the overhanging side decreases, and at the same time, the amount of payout of the retracted side located on the opposite side increases, so that the web W moves to the retracted side, and one side edge of the overhanging web increases. W2 gradually withdraws,
Along with this, the other side edge W2 of the retracted web gradually protrudes, and finally the protruding amounts of these both side edges W2, W2 match, the detection signal output from the detection section 4 disappears, and the brake 6 is activated by the output shaft 2a. Move further away.
【００２７】尚、前示実施例では繰り出し部１として繰
り出しベルトを用いたが、これに限定されず、繰り出し
ローラ等他の手段を用いても良く、駆動源３と入力輪環
２ｃとの連係構造や検出部４やブレーキ６の構造等も上
述したものに限定されず、他の構造のものを用いても良
い。In the above-mentioned embodiment, a feeding belt is used as the feeding section 1, but the feeding belt is not limited to this, and other means such as a feeding roller may be used. The structure, the structure of the detection unit 4, the brake 6, etc. are not limited to those described above, and other structures may be used.
【００２８】また、ウェブＷの両側縁Ｗ２，Ｗ２をチュ
ーブ成形体Ａから突出させて重ね合わせ熱シールしたが
、これに限定されず、ウェブＷの両側縁Ｗ２，Ｗ２をチ
ューブ成形体Ａに沿って重ね合わせ熱シールしても良い
。Further, although both edges W2, W2 of the web W were made to protrude from the tube formed body A and were overlapped and heat-sealed, the present invention is not limited thereto. They may be overlapped and heat sealed.
【００２９】この場合には、図４に示す如く、チューブ
成形体Ａに沿って巻付けた内側の側縁Ｗ２と、その外側
に巻付けられた側縁Ｗ２との間に、反射し難い材質で形
成した板Ａ２を介在させると共に、外側の側縁Ｗ２と対
向して検出部４を配設し、ウェブＷの幅方向への位置ズ
レに伴う外側の側縁Ｗ２の左右方向へ移動位置を該検出
部４で検出することにより、検出信号が制御部５へ出力
されて制御部５からどちらか一方のブレーキ６，６へ作
動信号を出力させる。In this case, as shown in FIG. 4, a material that is difficult to reflect is placed between the inner side edge W2 wrapped along the tube molded body A and the side edge W2 wrapped around the outer side. The detection unit 4 is disposed opposite the outer side edge W2, and the position of the outer side edge W2 shifted in the left-right direction due to the positional shift in the width direction of the web W is detected. When detected by the detection section 4, a detection signal is output to the control section 5, which causes the control section 5 to output an actuation signal to one of the brakes 6, 6.
【００３０】[0030]
【発明の効果】本発明は上記の構成であるから、以下の
利点を有する。１．一方の繰り出し部がスリップしてそ
の摩擦抵抗が低下したり、或いはウェブ片側の張力が反
対側の張力に比べ小さくなって、駆動軸の回転数が増え
ることにより、ディファレンシャルギャ機構の作動でこ
の回転数が増した分だけ、他方の駆動軸の回転数を減ら
してウェブのスリップしない側、又は張力の大きい側の
繰り出し量が減少し、その後にスリップがなくなったり
、ウェブ両側部の張力に差がなくなれば、両駆動軸が同
速回転してウェブ両側部が均等に繰り出されるので、繰
り出し部のスリップ及び繰り出し抵抗大によるウェブの
蛇行を繰り出し位置で修正することができる。[Effects of the Invention] Since the present invention has the above structure, it has the following advantages. 1. If one feeding section slips and its frictional resistance decreases, or the tension on one side of the web becomes smaller than the tension on the other side, the rotational speed of the drive shaft increases, and the differential gear mechanism operates to reduce this rotation. As the number increases, the rotation speed of the other drive shaft is reduced to reduce the amount of feed on the non-slip side of the web or the side with high tension, and then the slip disappears or the difference in tension on both sides of the web decreases. Once this occurs, both drive shafts rotate at the same speed and both sides of the web are fed out equally, so that slippage in the feeding section and meandering of the web due to large feeding resistance can be corrected at the feeding position.
【００３１】従って、両繰り出し部が同一速度で同一量
回転する従来のものに比べ、不良品が発生せず、ウェブ
の蛇行調整のために運転を停止する必要がなく、調整作
業の手間が省けると共に稼動率が向上する。[0031] Therefore, compared to the conventional system in which both feeding parts rotate at the same speed and the same amount, there are no defective products, there is no need to stop operation to adjust the meandering of the web, and the effort of adjustment work can be saved. At the same time, the operating rate improves.
【００３２】２．ウェブが幅方向へ傾いて繰り出し部に
供給され、その位置ズレを検出部が検出して位置ズレし
た方のブレーキを接動させることにより、位置ズレした
方の駆動軸の回転が減速し、その減速した分だけ反対側
の駆動軸の回転を加速してウェブが位置ズレした方より
多く繰り出され、ウェブが位置ズレした方向と逆方向へ
強制的に移動し、その後に検出部が検出しなくなればブ
レーキを離動させて、ウェブ両端部が均等に繰り出され
るので、ロールから繰り出し部まで供給される間に発生
するウェブの蛇行を繰り出し位置で修正することができ
る。2. The web is fed to the feeding section with an inclination in the width direction, and the detection section detects the misalignment and applies the brake of the misaligned side, thereby decelerating the rotation of the misaligned drive shaft. The rotation of the drive shaft on the opposite side is accelerated by the amount of deceleration, and the web is fed out more than the one that is misaligned, and the web is forcibly moved in the opposite direction to the misaligned direction, after which the detection unit no longer detects it. For example, by releasing the brake, both ends of the web are unrolled equally, so that meandering of the web that occurs while being fed from the roll to the unwinding section can be corrected at the unwinding position.
【００３３】従って、繰り出し部より上流側に多数存在
する蛇行原因を取除かなくても不良品が発生せず、ウェ
ブの蛇行調整のために運転を停止する必要がなく、調整
作業の手間が省けると共に稼動率が向上する。[0033] Therefore, no defective products are produced even if many causes of meandering that exist upstream of the feeding section are not removed, there is no need to stop the operation to adjust the meandering of the web, and the trouble of adjustment work is reduced. This saves money and improves the operating rate.
【図１】本発明の一実施例を示す製袋充填包装装置の横
断平面図である。FIG. 1 is a cross-sectional plan view of a bag-forming-filling-packaging device showing an embodiment of the present invention.
【図２】同縦断側面図である。FIG. 2 is a longitudinal sectional side view of the same.
【図３】図２の３−３線に沿える部分拡大断面図である
。FIG. 3 is a partially enlarged sectional view taken along line 3-3 in FIG. 2;
【図４】検出部配置の変形例を示す部分拡大断面図であ
る。FIG. 4 is a partially enlarged cross-sectional view showing a modified example of the arrangement of the detection section.
Ａ チューブ成形体
Ｗ ウェブ
Ｗ１ 側 部
Ｗ２ 側 縁
１ 繰り出し部（繰り出しベルト）
１ａ 駆動軸
２ ディファレンシャルギャ機構
２ａ 出力端（出力軸）
２ｃ 入力端（入力輪環）
３ 駆動源
４ 検出部
５ 制御部
６ ブレーキA Tube molded body
W web W1 side part
W2 side edge 1 Feeding part (feeding belt)
1a Drive shaft 2 Differential gear mechanism
2a Output end (output shaft) 2c Input end (input ring)
3 Drive source 4 Detection section
5 Control part 6 Brake
Claims (2)
一対の繰り出し部を夫々ウェブの両側部に当接させて設
け、これら両繰り出し部の間欠作動によりロールから供
給されるウェブをチューブ成形体に巻付けて、チューブ
状に形成しながら垂下させ、このチューブ状ウェブ内に
被包装物を充填する製袋充填包装装置において、前記両
繰り出し部の駆動軸をディファレンシャルギャ機構の出
力側に夫々連係し、このディファレンシャルギャ機構の
入力側を駆動源に連係したことを特徴とする製袋充填包
装装置。Claim 1: A pair of feed-out portions are provided on opposite sides of the outer periphery of the tube formed body, each in contact with both sides of the web, and the intermittent operation of these feed-out portions causes the web fed from the rolls to flow into the tube formed body. In a bag making, filling and packaging apparatus that wraps the web and hangs it down while forming it into a tube shape, and fills the article to be packaged into this tubular web, the drive shafts of both the feeding parts are respectively linked to the output side of the differential gear mechanism. A bag making, filling and packaging apparatus characterized in that the input side of the differential gear mechanism is linked to a drive source.
流側に、ウェブの繰り出し方向と直交する幅方向への位
置ズレを検出する検出部を設け、各繰り出し部の駆動軸
を回転減速させるブレーキを夫々接離動自在に設けると
共に、上記検出部から出力される検出信号に基づいて、
位置ズレした側に位置するブレーキを接動させる制御部
を設けた請求項１記載の製袋充填包装装置。2. A detection unit is provided on the upstream side of both the feeding units in the web feeding direction to detect a positional deviation in the width direction perpendicular to the web feeding direction, and a brake is provided for rotationally decelerating the drive shaft of each feeding unit. Based on the detection signal output from the detection section,
2. The bag making, filling and packaging apparatus according to claim 1, further comprising a control section for actuating a brake located on the side where the position has shifted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10939691A JP2988642B2 (en) | 1991-05-14 | 1991-05-14 | Bag making, filling and packaging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10939691A JP2988642B2 (en) | 1991-05-14 | 1991-05-14 | Bag making, filling and packaging equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04339708A true JPH04339708A (en) | 1992-11-26 |
| JP2988642B2 JP2988642B2 (en) | 1999-12-13 |
Family
ID=14509183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10939691A Expired - Lifetime JP2988642B2 (en) | 1991-05-14 | 1991-05-14 | Bag making, filling and packaging equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2988642B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002002604A (en) * | 2000-06-20 | 2002-01-09 | Nihon Tetra Pak Kk | Filling machine |
-
1991
- 1991-05-14 JP JP10939691A patent/JP2988642B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002002604A (en) * | 2000-06-20 | 2002-01-09 | Nihon Tetra Pak Kk | Filling machine |
| JP4514905B2 (en) * | 2000-06-20 | 2010-07-28 | 日本テトラパック株式会社 | Filling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2988642B2 (en) | 1999-12-13 |
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