JPH05201426A - Sealing method for container - Google Patents
Sealing method for containerInfo
- Publication number
- JPH05201426A JPH05201426A JP4030229A JP3022992A JPH05201426A JP H05201426 A JPH05201426 A JP H05201426A JP 4030229 A JP4030229 A JP 4030229A JP 3022992 A JP3022992 A JP 3022992A JP H05201426 A JPH05201426 A JP H05201426A
- Authority
- JP
- Japan
- Prior art keywords
- packaging material
- heater wire
- switch
- metal bars
- cam
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 title claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 28
- 239000005022 packaging material Substances 0.000 claims abstract description 25
- 229920001169 thermoplastic Polymers 0.000 claims description 3
- 239000004416 thermosoftening plastic Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 238000012856 packing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Package Closures (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、熱可塑性プラスチック
製の包材を一対の金属バーで挟圧すると共に、前記金属
バーの挟圧面に沿って設けたヒータ線に瞬間的に高圧電
流を印加し、前記ヒータ線の発熱によって前記包材を溶
着するようにした容器のシール方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention presses a thermoplastic packaging material between a pair of metal bars and applies a high voltage current instantaneously to a heater wire provided along the pressing surface of the metal bars. The present invention relates to a container sealing method in which the packaging material is welded by heat generated by the heater wire.
【０００２】[0002]
【従来の技術】従来の容器シール方法は、一対の金属バ
ーを相対的に近付けて包材の開口縁を挟圧した直後、通
電によりヒータ線を加熱し、さらに前記ヒータ線及び金
属バーがある程度冷却するまで両金属バーによる包材の
挟圧状態を持続（この冷却により包材の溶融部が凝固）
し、そのあと前記両金属バーを解放するもので、前記作
用を一定の時間間隔で行うことにより、シールされた包
装製品を定められた時間内に定められた数だけ生産する
ことができる。2. Description of the Related Art In a conventional container sealing method, a heater wire is heated by energization immediately after a pair of metal bars are brought relatively close to each other to pinch an opening edge of a packaging material, and the heater wire and the metal bar are heated to some extent. Holds the packing material sandwiched between both metal bars until it cools (this cooling solidifies the melting part of the packing material)
Then, the both metal bars are released thereafter, and the above-mentioned action is performed at a constant time interval, so that a predetermined number of sealed packaged products can be produced within a predetermined time.
【０００３】[0003]
【発明が解決しようとする課題】前記方法を図３でみる
と、金属バーで包材を挟圧１したあと、通電３を例えば
１秒間行い、そのあと金属バー全体が所定温度まで冷却
するのに必要な時間が２秒間だとすると、金属バーの開
放までに３秒間の絶対時間４が必要で、最高効率で運転
している回転式の包装機ではそれ以上の能率アップは図
れないようになっているが、本発明は、金属バーを冷却
するのに必要な絶対時間を確保しながら、包装機の能率
アップを可能にしたものである。When the above method is viewed in FIG. 3, after the packaging material is clamped by the metal bar for 1 time, electricity is applied for 3 seconds, for example, and then the entire metal bar is cooled to a predetermined temperature. If the required time is 2 seconds, it takes 3 seconds absolute time 4 to open the metal bar, and the rotary packing machine operating at the highest efficiency cannot improve efficiency any more. However, the present invention makes it possible to increase the efficiency of the packaging machine while ensuring the absolute time required to cool the metal bar.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記の目的を
達成するために、一対の金属バーを相対的に接近させ、
熱可塑性プラスチック製の包材を前記両金属バーで一定
時間間隔だけ挟圧し、前記金属バーの挟圧面に沿って設
けたヒータ線に一定時間電流を印加し、該ヒータ線の発
熱で前記包材を溶着するようにしたシール方法におい
て、前記ヒータ線に対する電流印加を、前記両金属バー
が包材を挟圧する直前に行うようにしたものである。In order to achieve the above object, the present invention provides a pair of metal bars which are relatively close to each other.
The packaging material made of thermoplastics is clamped by the both metal bars for a certain time interval, and a current is applied to the heater wire provided along the clamping surface of the metal bar for a certain time, and the packaging material is heated by the heater wire. In the sealing method in which the welding is performed, the current is applied to the heater wire immediately before the metal bars press the packaging material.
【０００５】[0005]
【作用】一対の金属バーを挟圧する直前にヒータ線に電
流印加を行う。電流印加の時点から、ヒータ線が最高温
度にまて加熱されるのに、所定の立ち上がり時間がある
から、ヒータ線が最高温度に達した頃に金属バーは包材
を挟圧する。そのあと包材は一定時間金属バーに挟圧を
持続され、金属バーの冷却に伴って包材の溶融部も凝固
する。The current is applied to the heater wire immediately before the pair of metal bars are pressed. Since the heater wire is heated to the maximum temperature from the time when the current is applied and there is a predetermined rising time, the metal bar presses the packaging material when the heater wire reaches the maximum temperature. After that, the packaging material is kept under clamping pressure on the metal bar for a certain period of time, and the molten portion of the packaging material is solidified as the metal bar is cooled.
【０００６】[0006]
【実施例】図１に示すように、機台１０の上に金属バー
によって形成したシール台１１を設け、該シール台上域
に金属製のバーによって形成したシールバー１２を配置
している。前記シールバー１２を、上部機台１３に固定
したアクチュエータ１４のロット１５と連結し、該ロッ
ト上端を前記アクチュエータ内のダイヤフラム１６に連
結している。ダイヤフラム１６の上側の空間１７と、コ
ンプレッサ１８を連結した２位置３ポート弁１９とをラ
イン２０を介して連結すると共に、３ポート弁の電磁部
２１に接続した回路２２に第１開閉器２３を設けてい
る。一方ヒータ線２６に接続した回路２７に第２開閉器
２８を設け、前記第１開閉器２３及び第２開閉器２８の
近傍にそれぞれ同一の軸２９で回転する第１カム３０と
第２カム３１とを配置している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a seal base 11 formed of a metal bar is provided on a machine base 10, and a seal bar 12 formed of a metal bar is arranged in the upper region of the seal base. The seal bar 12 is connected to the lot 15 of the actuator 14 fixed to the upper machine base 13, and the upper end of the lot is connected to the diaphragm 16 in the actuator. The space 17 above the diaphragm 16 and the two-position three-port valve 19 to which the compressor 18 is connected are connected via the line 20, and the first switch 23 is connected to the circuit 22 connected to the electromagnetic portion 21 of the three-port valve. It is provided. On the other hand, a second switch 28 is provided in the circuit 27 connected to the heater wire 26, and a first cam 30 and a second cam 31 that rotate on the same shaft 29 are provided near the first switch 23 and the second switch 28, respectively. And are arranged.
【０００７】軸２９の動力で回転する第１カム３０によ
り第１スイッチ２３が閉じ電磁部２１に通電すると、３
ポート弁１９は切り替わりコンプレッサ１８の吐出圧力
をアクチュエータ１４に作用させるので、シールバー１
２はシール台１１に向けて下動し包材を挟圧する。一方
第２カム３１により第２スイッチ２８が閉じると、ヒー
タ線２６は電流印加により発熱する。この場合カム３１
は第１スイッチ２３よりも第２スイッチ２８を早く閉鎖
するように構成しているので、図２において起点４０か
ら１秒間だけヒータ線に電気４１が流れ、遅れてシール
バーの下降で包材は挟圧４２を受け、所定時間４３の後
シールバーは上動して包材を解放４４するのである。When the first switch 23 is closed by the first cam 30 rotated by the power of the shaft 29 and the electromagnetic portion 21 is energized, 3
Since the port valve 19 is switched and the discharge pressure of the compressor 18 is applied to the actuator 14, the seal bar 1
2 moves downward toward the seal base 11 to clamp the packaging material. On the other hand, when the second switch 28 is closed by the second cam 31, the heater wire 26 generates heat by applying a current. In this case the cam 31
Since the second switch 28 is closed earlier than the first switch 23, electricity 41 flows from the starting point 40 to the heater wire for one second from the starting point 40 in FIG. After receiving the pinching pressure 42, the seal bar moves upward after a predetermined time 43 to release 44 the packaging material.
【０００８】[0008]
【効果】本発明は、ヒータ線に対する電流印加を、ヒー
タ線における温度の立ち上がりを見込んで金属バーが包
材を挟圧する前に行い、包材を挟圧するのとほとんど同
時にヒータ線がシール温度になるようにしたから、従来
の、包材挟圧のあとヒータ線に電流印加を行う方法に比
べて、それだけ包材に対する挟圧保持時間が短くなり、
回転式包装機の能率アップができる効果がある。[Effect] According to the present invention, the current is applied to the heater wire before the metal bar presses the packaging material in anticipation of the temperature rise in the heater wire, and the heater wire is heated to the sealing temperature almost at the same time when the packaging material is pressed. Therefore, compared to the conventional method of applying current to the heater wire after clamping the packaging material, the clamping pressure holding time for the packaging material is shortened accordingly.
This has the effect of increasing the efficiency of the rotary packaging machine.
【図１】 本発明方法を実施する装置全体の説明図。FIG. 1 is an explanatory diagram of an entire apparatus for carrying out the method of the present invention.
【図２】 前図の作用説明図。FIG. 2 is an operation explanatory view of the previous figure.
【図３】 従来例の作用説明図。FIG. 3 is an operation explanatory view of a conventional example.
１１．１２… 金属バー、 ２６… ヒータ線。 11.12 ... Metal bar, 26 ... Heater wire.
Claims (1)
可塑性プラスチック製の包材を前記両金属バーで一定時
間間隔だけ挟圧し、前記金属バーの挟圧面に沿って設け
たヒータ線に一定時間電流を印加し、該ヒータ線の発熱
で前記包材を溶着するようにしたシール方法において、
前記ヒータ線に対する電流印加を、前記両金属バーが包
材を挟圧する直前に行うようにしたことを特徴とする容
器のシール方法。1. A pair of metal bars are brought relatively close to each other, and a thermoplastic packaging material is clamped by the both metal bars for a predetermined time interval, and a heater wire is provided along a clamping surface of the metal bars. In a sealing method in which a current is applied for a certain period of time and the packaging material is welded by the heat generated by the heater wire,
A method for sealing a container, characterized in that a current is applied to the heater wire immediately before the metal bars press the packaging material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4030229A JPH05201426A (en) | 1992-01-20 | 1992-01-20 | Sealing method for container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4030229A JPH05201426A (en) | 1992-01-20 | 1992-01-20 | Sealing method for container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05201426A true JPH05201426A (en) | 1993-08-10 |
Family
ID=12297887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4030229A Pending JPH05201426A (en) | 1992-01-20 | 1992-01-20 | Sealing method for container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05201426A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100899886B1 (en) * | 2007-11-02 | 2009-05-29 | 백덕현 | Septic tank manufacturing method having partition using synthetic resin and septic tank manufactured by the manufacturing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5168391A (en) * | 1974-12-10 | 1976-06-12 | Tokyo Electric Co Ltd |
-
1992
- 1992-01-20 JP JP4030229A patent/JPH05201426A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5168391A (en) * | 1974-12-10 | 1976-06-12 | Tokyo Electric Co Ltd |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100899886B1 (en) * | 2007-11-02 | 2009-05-29 | 백덕현 | Septic tank manufacturing method having partition using synthetic resin and septic tank manufactured by the manufacturing method |
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