JP4735004B2 - Sealing device - Google Patents

Sealing device Download PDF

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JP4735004B2
JP4735004B2 JP2005101617A JP2005101617A JP4735004B2 JP 4735004 B2 JP4735004 B2 JP 4735004B2 JP 2005101617 A JP2005101617 A JP 2005101617A JP 2005101617 A JP2005101617 A JP 2005101617A JP 4735004 B2 JP4735004 B2 JP 4735004B2
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plate
film
moving plate
hot plate
moving
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JP2006281502A (en
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智 江口
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Description

本発明は、製袋機におけるシール装置に関するものである。   The present invention relates to a sealing device in a bag making machine.

一般に、製袋機は、フィルムを間欠送りにしながら、複数のシールユニットでフィルムを貼り合わせ、三辺が熱圧着された袋を作る機械である。シールユニットにおいてフィルムは高温の熱板に挟まれて熱圧着されるものであり、熱圧着時の熱板の加圧にはバネを利用している。可動部に支持された上側の熱板がフィルムに向かって移動し、熱板とフィルムの接触後、可動部が更に移動し、熱板は、加圧バネによりフィルムに押し付けられ、これにより熱圧着される。
正しく熱圧着するためには、熱圧着の時間を管理する必要があり、制御ソフトのシール時間設定と同時に、設備面でイキ量と呼ばれる項目を調整する必要がある。イキ量とは、加圧バネが縮むことによりできる隙間であり、加圧バネの縮み量に等しい。加圧バネは、シール動作の設定により、毎回同じ速度で縮むため、シール動作時に縮む加圧バネの縮み量であるイキ量を調整することにより、間接的にシール時間を調整できる。 In general, a bag making machine is a machine that makes a bag in which three sides are thermocompression bonded by laminating a film with a plurality of seal units while intermittently feeding the film. In the seal unit, the film is sandwiched between hot hot plates and thermocompression bonded, and a spring is used to press the hot plate during thermocompression bonding. The upper hot plate supported by the movable part moves toward the film, and after the contact between the hot plate and the film, the movable part further moves, and the hot plate is pressed against the film by a pressure spring, thereby thermocompression bonding. Is done.
In order to correctly perform thermocompression bonding, it is necessary to manage the thermocompression bonding time, and at the same time as setting the sealing time of the control software, it is necessary to adjust an item called “amount” in terms of equipment. The amount of clearance is a gap formed by contraction of the pressure spring, and is equal to the amount of contraction of the pressure spring. Since the pressurizing spring contracts at the same speed every time depending on the setting of the sealing operation, the sealing time can be indirectly adjusted by adjusting the amount of clearance that is the contraction amount of the pressing spring that contracts during the sealing operation.

従来、イキ量の調整は、シール動作時の製袋機の隙間を定規で測定して行っていた。しかし、上下運動する機械の隙間を測定していたため、精度が不足していた。このため、特に品目切り替え時に、イキ量調整に時間がかかるという問題が生じていた。
この問題を解決する方法として、圧力センサーによりシール圧力の時間変化を測定することにより正確なシール時間を測定し、さらに測定したシール時間を元にイキ量を自動調整し、シール時間を変更し、品目切り替え時のイキ量調整を不要とする発明が提案された（特許文献１）。
特開平９−１８３１７４号公報 Conventionally, the adjustment of the amount of clearance has been performed by measuring the gap of the bag making machine during the sealing operation with a ruler. However, the accuracy was insufficient because the gap of the machine that moved up and down was measured. For this reason, there has been a problem that it takes time to adjust the amount of adjustment, especially at the time of item switching.
As a method to solve this problem, measure the exact seal time by measuring the time change of the seal pressure with the pressure sensor, further adjust the amount of clearance automatically based on the measured seal time, change the seal time, An invention that eliminates the need to adjust the amount of items when switching items has been proposed (Patent Document 1).
JP-A-9-183174

しかしながら、この方法では、イキ量を測定し、調整するという目的においては大がかりであり、一台の製袋機に３セット以上あるシールユニットすべてに改造を実施する必要があるため、金額的負担も大きく現実的ではない。このような点から、特に品目切り替え時に簡易に精度よくイキ量を測定できる手段が必要とされている。   However, this method is a large scale for the purpose of measuring and adjusting the amount of squeeze, and it is necessary to carry out modifications to all three or more seal units in one bag-making machine. Big and not realistic. In view of the above, there is a need for means that can easily and accurately measure the amount of clearance especially when switching items.

本発明は、かかる問題点に鑑みてなされたもので、ダイヤルゲージを用いることで、シール動作時のバネの縮み量を正確に測定することを可能にし、イキ量の調整が容易なシール装置を提供するものである。   The present invention has been made in view of such problems, and by using a dial gauge, it is possible to accurately measure the amount of spring contraction during a sealing operation, and to provide a sealing device that can easily adjust the amount of clearance. It is to provide.

本願第１の発明は、上面に第１の熱板を備えた固定板と、第１の熱板の上方に、第１の熱板に対向して配置される第２の熱板を備えた鉛直方向に移動可能な移動板と、を具備し、前記移動板は、鉛直方向に移動可能な支柱に固定された移動板支持部に支持され、前記移動板上部に、バネ構造を備え、前記第１の熱板上にフィルムを配置し、前記支柱の鉛直下方への移動により、前記移動板は、前記フィルムに向かって移動され、前記第２の熱板と前記フィルムとの接触後、前記支柱の鉛直下方への移動により、前記バネ構造が前記移動板を加圧し、前記第２の熱板を前記フィルムに押し付けるとともに、前記移動板支持部が前記支柱とともに下方に移動するシール装置であって、前記支柱が、鉛直方向に移動する際の前記バネ構造の縮み量を測定する測定手段を設け、前記測定手段は、前記移動板支持部にマグネットスタンドを用いて脱着可能に設けられたプレートと、前記移動板に設けられ、前記プレートとの間の距離を測定するダイヤルゲージであることを特徴とするシール装置である。
第２の発明は、上面に第１の熱板を備えた固定板と、第１の熱板の上方に、第１の熱板に対向して配置される第２の熱板を備えた鉛直方向に移動可能な移動板と、を具備し、前記移動板は、鉛直方向に移動可能な支柱に固定された移動板支持部に支持され、前記移動板上部に、バネと前記支柱に固定されたバネ押さえとからなるバネ構造を備え、前記第１の熱板上にフィルムを配置し、前記支柱の鉛直下方への移動により、前記移動板は、前記フィルムに向かって移動され、前記第２の熱板と前記フィルムとの接触後、前記支柱の鉛直下方への移動により、前記バネ構造が前記移動板を加圧し、前記第２の熱板を前記フィルムに押し付けるとともに、前記バネ押さえが前記支柱とともに下方に移動するシール装置であって、前記支柱が、鉛直方向に移動する際の前記バネ構造の縮み量を測定する測定手段を設け、前記測定手段は、前記移動板にマグネットスタンドを用いて脱着可能に設けられたプレートと、前記バネ押さえに設けられ、前記プレートとの間の距離を測定するダイヤルゲージであることを特徴とするシール装置である。 The gun first invention includes a fixed plate having a first heating plate on the upper surface, above the first heating plate, a second hot plate is arranged to face the first heating plate A movable plate movable in the vertical direction, and the movable plate is supported by a movable plate support fixed to a support column movable in the vertical direction, and has a spring structure on the movable plate. A film is placed on the first hot plate, and the moving plate is moved toward the film by the downward movement of the support column, and after the contact between the second hot plate and the film, A sealing device in which the spring structure pressurizes the moving plate and presses the second heat plate against the film as the supporting column moves vertically downward, and the moving plate support portion moves downward together with the supporting column. And the amount of contraction of the spring structure when the column moves in the vertical direction. Provided measuring means constant for the measuring means comprises a plate provided detachably with magnetic stand to the moving plate supporting portion, provided on the moving plate, measuring the distance between the plate dial a sealing device you being a gauge.
According to a second aspect of the present invention, there is provided a vertical plate provided with a fixed plate having a first hot plate on the upper surface and a second hot plate arranged above the first hot plate so as to face the first hot plate. A movable plate movable in a direction, and the movable plate is supported by a movable plate support fixed to a support column movable in a vertical direction, and fixed to a spring and the support column on the movable plate. A spring structure comprising a spring presser, and a film is disposed on the first heat plate, and the movable plate is moved toward the film by the vertically downward movement of the support column, and the second After the contact between the heating plate and the film, the spring structure pressurizes the moving plate by moving the support column vertically downward, and presses the second heating plate against the film. A sealing device that moves downward together with a support, wherein the support is vertically Measuring means for measuring the amount of contraction of the spring structure when moving in the direction, the measuring means is provided on the moving plate and detachably provided using a magnet stand, and the spring retainer, The seal device is a dial gauge for measuring a distance between the plate and the plate.

本発明のシール装置は、簡易に精度よくイキ量を測定することができる。正確なイキ量を測定することにより、イキ量の調整が容易になり、シール時間を確実に変更できるので、品目切り替え時に有効である。また、複数のシールユニットのイキ量を測定する場合には、すべてのシールユニットにプレートだけ取り付けておき、ダイヤルゲージは測定するシールユニットに取り付けることにより、シール装置に対する改造を最小限にできる。また、プレートをマグネットスタンド等を用いて脱着可能に取り付ければ、シール装置に対する改造は更に少なくなる。   The sealing device of the present invention can easily and accurately measure the amount of clearance. By measuring the correct amount of adjustment, the amount of adjustment can be easily adjusted and the sealing time can be changed reliably, which is effective when switching items. Also, when measuring the amount of clearance of a plurality of seal units, only the plates are attached to all the seal units, and the dial gauge is attached to the seal unit to be measured, so that the modification to the seal device can be minimized. Further, if the plate is detachably attached using a magnet stand or the like, modification to the sealing device is further reduced.

以下、本発明の実施の形態を、図面を参照しながら詳細に説明する。
図１は、本発明の実施形態に係るシール装置の一例を示す概略斜視図であり、図２は、図１に示すシール装置の側面図であり、また、図３は、図１に示すシール装置における加圧時の側面図である Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic perspective view showing an example of a sealing device according to an embodiment of the present invention, FIG. 2 is a side view of the sealing device shown in FIG. 1, and FIG. 3 is a seal shown in FIG. It is a side view at the time of pressurization in an apparatus.

本発明のシール装置１は、図１〜３に示すように、上面に熱板３を備えた固定板５と、熱板３に対向して配置される熱板６を備えた鉛直方向に移動可能な移動板７とを有する。また、固定板５、移動板７を貫通して設けられ、下端でカム（図示せず）に接続されて鉛直方向に往復運動する一組の支柱９を有し、移動板７は、支柱９に固定された支持部１１に支持されて鉛直方向に移動可能とする。複数層に重ね合わせられたフィルム２１が、間欠的に送られ、熱板３、６間に導かれ、熱板３と熱板６がフィルム２１に対向する。   As shown in FIGS. 1 to 3, the sealing device 1 of the present invention moves in a vertical direction including a fixed plate 5 having a hot plate 3 on the upper surface and a hot plate 6 disposed to face the hot plate 3. And a possible moving plate 7. Further, the support plate 5 and the moving plate 7 are provided so as to penetrate the fixed plate 5 and are connected to a cam (not shown) at the lower end and have a pair of support columns 9 that reciprocate in the vertical direction. It is supported by the support part 11 fixed to the head and is movable in the vertical direction. The film 21 superimposed on a plurality of layers is intermittently sent and guided between the hot plates 3 and 6, and the hot plate 3 and the hot plate 6 face the film 21.

支柱９は、移動板７上部にバネ１３と支柱９に固定されたバネ押さえ１５よりなるバネ構造を有し、支柱９の鉛直下方への移動により、熱板６がフィルム２１に接触した後、支柱９が更に鉛直下方向に移動することにより、バネ１３が移動板７上部を加圧し、熱板６をフィルム２１に押し付ける構造である。尚、固定板５は、図示しない他の手段により、固定されている。   The support column 9 has a spring structure composed of a spring 13 and a spring retainer 15 fixed to the support plate 9 at the upper part of the moving plate 7. After the heating plate 6 comes into contact with the film 21 by moving the support column 9 vertically downward, As the support column 9 further moves vertically downward, the spring 13 pressurizes the upper portion of the moving plate 7 and presses the hot plate 6 against the film 21. The fixing plate 5 is fixed by other means (not shown).

またシール動作時にイキ量を測定する測定手段として、プレート１９とダイヤルゲージ１７とを有する。プレート１９は支持部１１に固定され、ダイヤルゲージ１７はプレート１９の変位を測れる位置に固定される。
プレート１９は、マグネットスタンド等を利用して、脱着可能に取り付けてもよい。ダイヤルゲージ１７は、シール動作により指針が振れるアナログ式よりも、デジタル式のほうが好ましい。ダイヤルゲージ１７は、マグネットスタンド等を利用して、脱着可能に取り付けてもよい。 Further, a plate 19 and a dial gauge 17 are provided as measuring means for measuring the amount of clearance during the sealing operation. The plate 19 is fixed to the support portion 11, and the dial gauge 17 is fixed at a position where the displacement of the plate 19 can be measured.
The plate 19 may be detachably attached using a magnet stand or the like. The dial gauge 17 is preferably a digital type rather than an analog type in which the pointer can be swung by a sealing operation. The dial gauge 17 may be detachably attached using a magnet stand or the like.

次に、フィルムの熱圧着方法及びイキ量の測定方法について説明する。
まず、図２に示す状態で移動板７は、支持部１１に支えられて上方に位置している。この状態でフィルム２１が熱板３上に配置され、シール動作が開始される。 Next, a method for thermocompression bonding of the film and a method for measuring the amount of clearance will be described.
First, in the state shown in FIG. 2, the moving plate 7 is supported by the support portion 11 and is positioned above. In this state, the film 21 is disposed on the hot plate 3 and the sealing operation is started.

シール動作が開始されると、支柱９が鉛直下方に引っ張られ、一定速度で移動する。支柱９の移動により、熱板６が下方に移動してフィルム２１に接触し、更に支柱９が鉛直下方に引っ張られると、図３に示すように、支持部１１とバネ押さえ１５は支柱９とともに下方へ移動するが、移動板７は移動しないので、バネ１３により、移動板７が加圧され、熱板６がフィルム２１に押し付けられる。この時、支持部１１と移動板７との間に隙間が生じる。   When the sealing operation is started, the support column 9 is pulled vertically downward and moves at a constant speed. When the support 9 is moved, the hot plate 6 moves downward to come into contact with the film 21, and when the support 9 is pulled vertically downward, as shown in FIG. Although it moves downward, the moving plate 7 does not move, so the moving plate 7 is pressurized by the spring 13 and the hot plate 6 is pressed against the film 21. At this time, a gap is generated between the support portion 11 and the movable plate 7.

支柱９は、設定位置まで、一定速度で鉛直下方へ移動すると、次は鉛直上方へ一定速度で移動し、支持部１１が移動板７に接触したとき、移動板７は支持部１１によって上方へ引き上げられ、図２に示す状態に戻る。
熱板６とフィルム２１の接触後、熱板６がフィルム２１から離れるまでの間、熱板６がフィルム２１に押し付けられ、熱板３，６によってフィルム２１がシールされる。ここで、熱板６がフィルム２１に押し付けられている時間がシール時間である。 When the support column 9 moves vertically downward at a constant speed to the set position, next, the support column 9 moves vertically upward at a constant speed. When the support portion 11 contacts the moving plate 7, the moving plate 7 is moved upward by the support portion 11. It is pulled up and returns to the state shown in FIG.
After the contact between the hot plate 6 and the film 21, the hot plate 6 is pressed against the film 21 until the hot plate 6 is separated from the film 21, and the film 21 is sealed by the hot plates 3 and 6. Here, the time when the hot plate 6 is pressed against the film 21 is the sealing time.

本発明のシール装置では、プレート１９とダイヤルゲージ１７とを用いて、イキ量を測定する。図３に示すようにシール動作時には、熱板６とフィルム２１の接触後に、支持部１１と移動板７との間に隙間ができる。この隙間の最大値ｄをイキ量として測定する。
測定に当たっては、まず、加圧時ではない通常状態にて、ダイヤルゲージのゼロ点出しを行い、次にプレート１９の変位の最大値のみ表示されるように、ダイヤルゲージをピークホールドモードとしておく。この状態でシール動作を行うことにより、図３に示す距離ｄを測定する。すなわち、支柱９が鉛直下方へ移動し、熱板６がフィルム２１に接触すると、ダイヤルゲージ１７は移動板７とともに移動をやめ、プレート１９は支柱９とともに更に下方へ移動する。この時、プレートの変位の最大値をダイヤルゲージ１９が測定する。 In the sealing device of the present invention, the amount of clearance is measured using the plate 19 and the dial gauge 17. As shown in FIG. 3, during the sealing operation, a gap is formed between the support portion 11 and the moving plate 7 after the hot plate 6 and the film 21 are contacted. The maximum value d of the gap is measured as the amount of clearance.
In the measurement, first, the dial gauge is zeroed out in a normal state not during pressurization, and then the dial gauge is set to the peak hold mode so that only the maximum value of the displacement of the plate 19 is displayed. By performing the sealing operation in this state, the distance d shown in FIG. 3 is measured. That is, when the support column 9 moves vertically downward and the hot plate 6 contacts the film 21, the dial gauge 17 stops moving together with the moving plate 7, and the plate 19 moves further together with the support column 9. At this time, the dial gauge 19 measures the maximum displacement of the plate.

上記実施の形態においては、イキ量として図３に示す距離ｄを測定したが、図４に示すように、移動板７にプレート１９を取り付け、バネ押さえ１５に、プレート１９の変位を測定できる位置にダイヤルゲージ１７を取り付け、シール動作時にプレート１９の変位の最大値を測定することにより、イキ量を測定することもできる。   In the above embodiment, the distance d shown in FIG. 3 was measured as the amount of clearance. However, as shown in FIG. 4, the plate 19 is attached to the moving plate 7 and the spring holder 15 can measure the displacement of the plate 19. It is also possible to measure the amount of clearance by attaching a dial gauge 17 and measuring the maximum displacement of the plate 19 during the sealing operation.

本実施の形態によれば、従来のシール装置にプレートとダイヤルゲージとを取り付けるだけで、精度よくイキ量を測定することができる。正確なイキ量を測定することにより、イキ量の調整が容易になり、シール時間を確実に変更できる。また、複数のシールユニットのイキ量を測定する場合には、すべてのシールユニットにプレートだけ取り付けておき、ダイヤルゲージは測定するシールユニットに取り付けることにより、シール装置に対する改造を最小限にできる。また、プレートをマグネットスタンド等を用いて脱着可能に取り付ければ、シール装置に対する改造は更に少なくなる。   According to the present embodiment, it is possible to accurately measure the amount of clearance by simply attaching a plate and a dial gauge to a conventional sealing device. By measuring the correct amount of clearance, the amount of clearance can be easily adjusted and the sealing time can be changed reliably. Also, when measuring the amount of clearance of a plurality of seal units, only the plates are attached to all the seal units, and the dial gauge is attached to the seal unit to be measured, so that the modification to the seal device can be minimized. Further, if the plate is detachably attached using a magnet stand or the like, modification to the sealing device is further reduced.

シール装置の一例を示す概略斜視図である。It is a schematic perspective view which shows an example of a sealing device. 図１のシール装置の側面図である。It is a side view of the sealing device of FIG. 図１のシール装置のシール動作時の側面図である。It is a side view at the time of sealing operation | movement of the sealing apparatus of FIG. シール装置の一例を示す概略斜視図である。It is a schematic perspective view which shows an example of a sealing device.

符号の説明Explanation of symbols

１………シール装置
３………熱板
５………固定板
６………熱板
７………移動板
９………支柱
１１………支持部
１３………バネ
１５………バネ押さえ
１７………ダイヤルゲージ
１９………プレート
２１………フィルム
３１………シール装置 DESCRIPTION OF SYMBOLS 1 ......... Sealing device 3 ......... Heat plate 5 ......... Fixed plate 6 ......... Heat plate 7 ......... Movement plate 9 ......... Staff 11 ......... Support part 13 ......... Spring 15 ......... Spring retainer 17 ......... Dial gauge 19 ......... Plate 21 ... …… Film 31 ... …… Seal device

Claims (2)

上面に第１の熱板を備えた固定板と、第１の熱板の上方に、第１の熱板に対向して配置される第２の熱板を備えた鉛直方向に移動可能な移動板と、を具備し、
前記移動板は、鉛直方向に移動可能な支柱に固定された移動板支持部に支持され、前記移動板上部に、バネ構造を備え、
前記第１の熱板上にフィルムを配置し、前記支柱の鉛直下方への移動により、前記移動板は、前記フィルムに向かって移動され、前記第２の熱板と前記フィルムとの接触後、前記支柱の鉛直下方への移動により、前記バネ構造が前記移動板を加圧し、前記第２の熱板を前記フィルムに押し付けるとともに、前記移動板支持部が前記支柱とともに下方に移動するシール装置であって、
前記支柱が、鉛直方向に移動する際の前記バネ構造の縮み量を測定する測定手段を設け、
前記測定手段は、前記移動板支持部にマグネットスタンドを用いて脱着可能に設けられたプレートと、前記移動板に設けられ、前記プレートとの間の距離を測定するダイヤルゲージであることを特徴とするシール装置。 A vertically movable plate provided with a fixed plate having a first hot plate on the upper surface and a second hot plate arranged above the first hot plate and facing the first hot plate A board,
The moving plate is supported by a moving plate support fixed to a support column movable in the vertical direction, and includes a spring structure on the moving plate.
A film is placed on the first hot plate, and the moving plate is moved toward the film by the downward movement of the support column, and after the contact between the second hot plate and the film, A sealing device in which the spring structure pressurizes the moving plate and presses the second heat plate against the film as the supporting column moves vertically downward, and the moving plate support portion moves downward together with the supporting column. There,
A measuring means for measuring the amount of contraction of the spring structure when the support column moves in the vertical direction;
The measuring means is a plate that is detachably provided on the moving plate support using a magnet stand, and a dial gauge that is provided on the moving plate and measures a distance between the plate. Sealing device. 上面に第１の熱板を備えた固定板と、第１の熱板の上方に、第１の熱板に対向して配置される第２の熱板を備えた鉛直方向に移動可能な移動板と、を具備し、
前記移動板は、鉛直方向に移動可能な支柱に固定された移動板支持部に支持され、前記移動板上部に、バネと前記支柱に固定されたバネ押さえとからなるバネ構造を備え、
前記第１の熱板上にフィルムを配置し、前記支柱の鉛直下方への移動により、前記移動板は、前記フィルムに向かって移動され、前記第２の熱板と前記フィルムとの接触後、前記支柱の鉛直下方への移動により、前記バネ構造が前記移動板を加圧し、前記第２の熱板を前記フィルムに押し付けるとともに、前記バネ押さえが前記支柱とともに下方に移動するシール装置であって、
前記支柱が、鉛直方向に移動する際の前記バネ構造の縮み量を測定する測定手段を設け、
前記測定手段は、前記移動板にマグネットスタンドを用いて脱着可能に設けられたプレートと、前記バネ押さえに設けられ、前記プレートとの間の距離を測定するダイヤルゲージであることを特徴とするシール装置。 A vertically movable plate provided with a fixed plate having a first hot plate on the upper surface and a second hot plate arranged above the first hot plate and facing the first hot plate A board,
The moving plate is supported by a moving plate support fixed to a support column movable in a vertical direction, and includes a spring structure including a spring and a spring presser fixed to the support column on the moving plate.
A film is placed on the first hot plate, and the moving plate is moved toward the film by the downward movement of the support column, and after the contact between the second hot plate and the film, A sealing device in which the spring structure pressurizes the moving plate and presses the second heat plate against the film, and the spring retainer moves downward together with the column by moving the column vertically downward. ,
A measuring means for measuring the amount of contraction of the spring structure when the support column moves in the vertical direction;
The seal is characterized in that the measuring means is a dial gauge that is detachably provided on the moving plate using a magnet stand, and a dial gauge that is provided on the spring press and measures the distance between the plate. apparatus.
JP2005101617A 2005-03-31 2005-03-31 Sealing device Expired - Fee Related JP4735004B2 (en)

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