JPH063776Y2 - Automatic temperature controller for packaging machine heater - Google Patents

Automatic temperature controller for packaging machine heater

Info

Publication number
JPH063776Y2
JPH063776Y2 JP2241190U JP2241190U JPH063776Y2 JP H063776 Y2 JPH063776 Y2 JP H063776Y2 JP 2241190 U JP2241190 U JP 2241190U JP 2241190 U JP2241190 U JP 2241190U JP H063776 Y2 JPH063776 Y2 JP H063776Y2
Authority
JP
Japan
Prior art keywords
heating
heater
circuit
packaging machine
time
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
Application number
JP2241190U
Other languages
Japanese (ja)
Other versions
JPH03114706U (en
Inventor
潔 村上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shinmaywa Industries Ltd
Original Assignee
Shinmaywa Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shinmaywa Industries Ltd filed Critical Shinmaywa Industries Ltd
Priority to JP2241190U priority Critical patent/JPH063776Y2/en
Publication of JPH03114706U publication Critical patent/JPH03114706U/ja
Application granted granted Critical
Publication of JPH063776Y2 publication Critical patent/JPH063776Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は、新聞等の包装設備に利用されるもので、特
に、包装機ヒータの自動温度調節装置に関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention is used for packaging equipment such as newspapers, and more particularly to an automatic temperature control device for a packaging machine heater.

(従来の技術) 新聞等を仕分け部数ごとに包装する包装機には、ポリエ
チレン材料等の包装用フィルムを熱溶着によって接合す
るためのヒータを備えている。このヒータはたとえば第
6図に示すように、フィルムを加熱して接合するための
シーラーバーの温度が、a以上に安定される低電圧によ
ってb〜cの範囲に収まる適正低温度fに維持されて
いるとき、ワーク(新聞)がヒータに接近するのをセン
サが検出すると、その検出信号で高電圧による加熱が行
われ、シーラーバーの温度はd〜eの範囲に収まる適正
高温度fに維持される。この適正高温度fに維持さ
れているシーラーバーによってフィルムの接合部の正常
な熱溶着が行われている。
(Prior Art) A packaging machine for packaging newspapers and the like according to the number of sorting units is provided with a heater for joining a packaging film such as a polyethylene material by heat welding. In this heater, as shown in FIG. 6, for example, the temperature of the sealer bar for heating and joining the films is maintained at an appropriate low temperature f 1 within the range of b to c by the low voltage stabilized above a. When the sensor detects that the work (newspaper) approaches the heater during heating, the detection signal causes heating by the high voltage, and the temperature of the sealer bar is an appropriate high temperature f 2 within the range of d to e. Maintained at. The sealer bar maintained at this appropriate high temperature f 2 normally heat-bonds the bonded portion of the film.

(考案が解決しようとする課題) しかし、前回の熱溶着が終って次回の熱溶着までの間、
第6図に示すような長い投入時間間隔tが経過すると、
たとえ、シーラーバーが低電圧で加熱されていても、シ
ーラーバーの温度は前記適正低温度fからさらにaの
近くまで下降する。
(Issues to be solved by the device) However, between the time of the last heat welding and the time of the next heat welding,
When a long input time interval t as shown in FIG. 6 has elapsed,
Even if the sealer bar is heated at a low voltage, the temperature of the sealer bar drops from the proper low temperature f 1 to a value closer to a.

このとき、高電圧による加熱が行われても、シーラーバ
ーの温度にdより低い上昇不測温度fの状態で高電圧
が遮断される。したがって、適正高温度fに達しない
シーラーバーではフィルムが溶着不良になって包装作業
の稼働率を妨げるという不都合があった。
At this time, even if heating by the high voltage is performed, the high voltage is cut off in a state where the temperature of the sealer bar is an unexpected temperature increase f 0 lower than d. Therefore, in the sealer bar that does not reach the appropriate high temperature f 2 , there is a disadvantage that the film becomes defective in welding and hinders the operation rate of the packaging work.

一方、投入間隔tの長い場合でも良好な熱溶着ができる
ように調整すると、ワーク(新聞)が連続的に投入され
た場合に、シーラーバーが異常な恒温になってフィルム
が溶け出すために包装できなくなるという矛盾がおこ
る。
On the other hand, if adjustment is made so that good heat welding can be performed even when the feeding interval t is long, when the work (newspaper) is continuously fed, the sealer bar becomes an abnormally constant temperature and the film melts, so that the packaging is performed. There is a contradiction that it will not be possible.

そこで、温調器を適用してシーラーバーの温度調整を行
うことが考えられるが、温調センサを取付ける必要があ
るために、構造が複雑になって設備費が高くなるという
問題がある。
Therefore, it is conceivable to apply a temperature controller to adjust the temperature of the sealer bar, but it is necessary to attach a temperature sensor, which causes a problem that the structure becomes complicated and the equipment cost increases.

本考案はこのような従来の事情から見て、構造が簡単で
設備費を安くするとともに、ワーク(新聞)を包装機ヒ
ータに投入する時間間隔が不規則に変化しても、常に良
好な熱溶着が行われるようにした包装機ヒータの自動温
度調整装置を提供することを目的としている。
In view of such conventional circumstances, the present invention has a simple structure, reduces the equipment cost, and keeps a good heat even if the time interval for putting the work (newspaper) into the heater of the packaging machine changes irregularly. It is an object of the present invention to provide an automatic temperature control device for a packaging machine heater in which welding is performed.

(課題を解決するための手段) 本考案の包装機ヒータの自動温度調整装置は、包装機ヒ
ータのヒータ加熱回路に、このヒータ加熱回路を導通さ
せるためのワーク搬入検出回路を連係させたものにおい
て、前記ヒータ加熱回路に自動温度調整装置が設けら
れ、この自動温度調整装置は、ヒータ加熱回路に包装機
ヒータの一定時間の加熱をさせるための加熱時間設定タ
イマーと、ヒータ加熱回路に包装機ヒータの一定時間の
加熱休止をさせるための加熱休止時間設定タイマーとが
具備されてなる温度調整加熱タイミング回路に、前記ワ
ーク搬入検出回路によるワークの検出動作の直後で、加
熱時間設定タイマーによるヒータ加熱回路の導通を禁止
するためのヒータ加熱禁止回路が接続されているもので
ある。
(Means for Solving the Problem) In the automatic temperature adjusting device for a packaging machine heater of the present invention, a work-carrying-in detection circuit for connecting the heater heating circuit of the packaging machine heater is connected to the heater heating circuit of the packaging machine heater. An automatic temperature adjusting device is provided in the heater heating circuit. The automatic temperature adjusting device includes a heating time setting timer for causing the heater heating circuit to heat the packaging machine heater for a certain period of time, and the packaging machine heater in the heater heating circuit. And a temperature adjustment heating timing circuit provided with a heating pause time setting timer for stopping heating for a certain period of time, immediately after the work detection operation by the work carry-in detection circuit, and a heater heating circuit by a heating time setting timer. The heater heating prohibition circuit for prohibiting the conduction of is connected.

(作用) ワーク(新聞)に投入する時間間隔が不規則に変化して
も、包装機ヒータの温度は自動温度調整装置の温度調整
加熱タイミング回路と、ヒータ加熱禁止回路によって常
に、包装用フィルムの熱溶着に適した状態に維持され
る。
(Function) Even if the time interval for putting into the work (newspaper) changes irregularly, the temperature of the packaging machine heater is always controlled by the temperature adjustment heating timing circuit of the automatic temperature control device and the heater heating prohibition circuit. Maintained in a state suitable for heat welding.

(実施例) 以下、本考案の一実施例を図面を参照して説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.

第1図に示す自動温度調整装置1は、包装機ヒータ2の
ヒータ加熱回路3に設けられていて、このヒータ加熱回
路3には、包装機ヒータ2の近接位置に搬入されたワー
ク(図示省略)を検出してヒータ加熱回路3に包装機ヒ
ータ2の加熱をさせるためのワーク搬入検出回路4が連
係されている。
The automatic temperature control device 1 shown in FIG. 1 is provided in a heater heating circuit 3 of a packaging machine heater 2, and a work (not shown) carried in the proximity of the packaging machine heater 2 is provided in the heater heating circuit 3. ) Is detected and the heater heating circuit 3 is linked with the work carry-in detection circuit 4 for heating the packaging machine heater 2.

すなわち、自動温度調整装置1は、第2図に示すよう
に、ヒータ加熱回路3に包装機ヒータ2の一定時間の加
熱Tを高電圧でさせるための加熱時間設定タイマー5
と、ヒータ加熱回路3に包装機ヒータ2の一定時間の加
熱休止Tをさせるための加熱休止時間設定タイマー6
とが具備されてなる温度調節加熱タイミング回路7に、
前記ワーク搬入検出回路4によるワークの検出動作の直
後で、加熱時間設定タイマー5によるヒータ加熱回路3
の導通を禁止するためのヒータ加熱禁止回路8が接続さ
れて構成される。
That is, as shown in FIG. 2, the automatic temperature adjusting device 1 includes a heating time setting timer 5 for causing the heater heating circuit 3 to heat the packaging machine heater 2 for a fixed time T 1 at a high voltage.
And a heating pause time setting timer 6 for causing the heater heating circuit 3 to perform a heating pause T 2 of the packaging machine heater 2 for a fixed time.
In the temperature control heating timing circuit 7 including
Immediately after the work carrying-in detection circuit 4 detects the work, the heater heating circuit 3 by the heating time setting timer 5
A heater heating prohibition circuit 8 for prohibiting conduction of is connected and configured.

また、加熱休止時間設定タイマー6による一定時間の加
熱休止Tは、ワーク搬入検出回路4でワークが検出さ
れると、その検出信号がヒータ加熱回路3から自動温度
調整装置1に返還されて、リセットし再スタートされる
ようになっている。
Further, in the heating pause T 2 for a fixed time by the heating pause time setting timer 6, when the workpiece is detected by the workpiece loading detection circuit 4, the detection signal is returned from the heater heating circuit 3 to the automatic temperature control device 1, It will be reset and restarted.

次に、上記実施例の作用について説明する。Next, the operation of the above embodiment will be described.

第1図および第3図において、包装機ヒータ2はヒータ
加熱回路3に入力されるワーク検出回路4および温度調
節加熱タイミング回路7からの信号によって一定時間の
加熱T,Tと一定時間の加熱休止Tおよび不定時
間の自然冷却Tが行われる。
In FIGS. 1 and 3, the packaging machine heater 2 receives heating signals T 1 and T 3 for a predetermined time and a predetermined time period according to signals from the work detection circuit 4 and the temperature adjustment heating timing circuit 7 which are input to the heater heating circuit 3. A heating pause T 2 and an indefinite time natural cooling T 4 are performed.

一定時間の加熱休止Tを行わせる加熱休止時間設定タ
イマー6は、加熱時間設定タイマー5による一定時間の
加熱Tだけでなく、ワーク検出W〜Wによる一定
時間の加熱Tが始まる度ごとにリセットRされて秒読
みが再スタートする一方、一定時間の加熱休止T中に
ワーク検出W,W,Wの信号を受けるとリセット
されるから、包装機ヒータ2は下限温度がB〜C間に維
持されるとともに、上限温度もD〜E間から上昇するこ
とがない。
The heating pause time setting timer 6 for performing the heating pause T 2 for a fixed time starts not only the heating T 1 for a fixed time by the heating time setting timer 5 but also the heating T 3 for a fixed time by the work detection W 1 to W 5. While the countdown is restarted at each time and the countdown is restarted, it is reset when the signals of the work detection W 2 , W 3 and W 5 are received during the heating pause T 2 for a fixed time. Is maintained between B and C, and the upper limit temperature does not rise from between D and E.

すなわち、ワーク検出Wが行われるまでの間に、タイ
マーによる一定時間の加熱TがX点に置かれているか
ら、包装機ヒータ2の温度が長い一定時間の自然冷却T
で第4図で示すようにBから下降することがなく、し
たがって、ワーク検出Wで加熱されても、Dに満たな
くなるようなおそれもない。
That is, until the work detection W 3 is performed, the heating T 1 for a fixed time by the timer is placed at the point X, so that the temperature of the packaging machine heater 2 is naturally cooled for a long time T 1.
4 does not descend from B as shown in FIG. 4 , and therefore, even if the workpiece is heated by the workpiece detection W 3 , there is no possibility that it will be less than D.

また、ワーク検出Wの直後にタイマーによる一定時間
の加熱TがY点に来ても、このY点での加熱時間設定
タイマー5の動作開始がヒータ加熱禁止回路8によって
禁止されるから、包装機ヒータ2が第5図に示すような
Eを超えるおそれがない。
Further, even if the heating T 1 for a certain time by the timer comes to the Y point immediately after the work detection W 3 , the operation start of the heating time setting timer 5 at the Y point is prohibited by the heater heating prohibition circuit 8. There is no possibility that the wrapping machine heater 2 will exceed E as shown in FIG.

(考案の効果) 本考案の包装機ヒータの自動温度調整装置は、包装機ヒ
ータのヒータ加熱回路に、このヒータ加熱回路を導通さ
せるためのワーク搬入検出回路を連結させたものにおい
て、前記ヒータ加熱回路に自動温度調整装置が設けら
れ、この自動温度調整装置は、ヒータ加熱回路に包装機
ヒータの一定時間の加熱をさせるための加熱時間設定タ
イマーと、ヒータ加熱回路に包装機ヒータの一定時間の
加熱休止をさせるための加熱休止時間設定タイマーとが
具備されてなる温度調整加熱タイミング回路に、前記ワ
ーク搬入検出回路によるワークの検出動作の直後で、加
熱時間設定タイマーによるヒータ加熱回路の導通を禁止
するためのヒータ加熱禁止回路が接続されているもので
あるから、ワーク(新聞)を包装機ヒータに投入する時
間間隔が不規則に変化しても、包装機ヒータが常に包装
用フィルムの熱溶着に適した温度に維持されてシール作
業が安定する。また、包装機ヒータの加熱および加熱休
止は、それぞれタイマーで設定されるものであるから、
温度調整がきわめて容易であるばかりでなく、構造が簡
単で設備費も安価であるなどの優れた利点がある。
(Advantages of the Invention) The automatic temperature control device for a packaging machine heater according to the present invention is a packaging machine heater having a heater heating circuit connected to a workpiece carry-in detection circuit for connecting the heater heating circuit with the heater heating circuit. The circuit is provided with an automatic temperature control device.This automatic temperature control device has a heating time setting timer for causing the heater heating circuit to heat the packaging machine heater for a certain period of time, and a heater heating circuit for keeping the packaging machine heater for a certain period of time. The temperature adjustment heating timing circuit, which is provided with a heating pause time setting timer for stopping the heating, prohibits the conduction of the heater heating circuit by the heating time setting timer immediately after the workpiece detection operation by the workpiece carry-in detection circuit. Since the heater heating prohibition circuit for connecting the work (newspaper) to the packaging machine heater is connected, Even if the distance changes irregularly, the heater of the packaging machine is always maintained at a temperature suitable for heat-sealing the packaging film, and the sealing operation is stable. In addition, since the heating of the packaging machine heater and the heating pause are each set by a timer,
Not only temperature adjustment is extremely easy, but also the structure is simple and the equipment cost is low.

【図面の簡単な説明】[Brief description of drawings]

図面は本考案の実施例を示すもので、第1図は包装機ヒ
ータの自動温度調整装置を説明する回路図、第2図は加
熱時間設定タイマーおよび加熱休止時間設定タイマーの
各設定時間の波形図、第3図は自動温度調節装置の作用
を説明する線図、第4図は包装機ヒータの温度上昇不足
を示す線図、第5図は包装機ヒータの温度上昇過剰を示
す線図、第6図は包装機ヒータの従来例の作用を説明す
る線図である。 1…自動温度調整装置 2…包装機ヒータ 3…ヒータ加熱回路 4…ワーク搬入検出回路 5…加熱時間設定タイマー 6…加熱休止時間設定タイマー 7…温度調整加熱タイミング回路 8…ヒータ加熱禁止回路 T…一定時間の加熱 T…一定時間の加熱休止
FIG. 1 shows an embodiment of the present invention. FIG. 1 is a circuit diagram for explaining an automatic temperature adjusting device for a packaging machine heater, and FIG. 2 is a waveform for each set time of a heating time setting timer and a heating pause time setting timer. FIG. 3 is a diagram for explaining the operation of the automatic temperature control device, FIG. 4 is a diagram showing insufficient temperature rise of the packaging machine heater, and FIG. 5 is a diagram showing excessive temperature rise of the packaging machine heater. FIG. 6 is a diagram for explaining the operation of the conventional example of the heater for the packaging machine. 1 ... Automatic temperature control device 2 ... Packaging machine heater 3 ... Heater heating circuit 4 ... Work carry-in detection circuit 5 ... Heating time setting timer 6 ... Heating rest time setting timer 7 ... Temperature adjustment heating timing circuit 8 ... Heater heating prohibition circuit T 1 … Heating for a fixed time T 2 … Pausing for a fixed time

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】包装機ヒータのヒータ加熱回路に、このヒ
ータ加熱回路を導通させるためのワーク搬入検出回路を
連係させたものにおいて、前記ヒータ加熱回路に自動温
度調整装置が設けられ、この自動温度調整装置は、ヒー
タ加熱回路に包装機ヒータの一定時間の加熱をさせるた
めの加熱時間設定タイマーと、ヒータ加熱回路に包装機
ヒータの一定時間の加熱休止をさせるための加熱休止時
間設定タイマーとが具備されてなる温度調整加熱タイミ
ング回路に、前記ワーク搬入検出回路によるワークの検
出動作の直後で、加熱時間設定タイマーによるヒータ加
熱回路の導通を禁止するためのヒータ加熱禁止回路が接
続されていることを特徴とする包装機ヒータの自動温度
調整装置。
1. A packaging machine heater comprising a heater heating circuit linked to a work-carrying-in detection circuit for electrically connecting the heater heating circuit, wherein the heater heating circuit is provided with an automatic temperature adjusting device. The adjusting device has a heating time setting timer for causing the heater heating circuit to heat the packaging machine heater for a certain period of time, and a heating pause time setting timer for causing the heater heating circuit to stop heating of the packaging machine heater for a certain period of time. A heater heating prohibition circuit for prohibiting conduction of the heater heating circuit by the heating time setting timer is connected to the temperature adjustment heating timing circuit provided immediately after the work detection operation by the work carry-in detection circuit. An automatic temperature control device for a packaging machine heater.
JP2241190U 1990-03-05 1990-03-05 Automatic temperature controller for packaging machine heater Expired - Lifetime JPH063776Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2241190U JPH063776Y2 (en) 1990-03-05 1990-03-05 Automatic temperature controller for packaging machine heater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2241190U JPH063776Y2 (en) 1990-03-05 1990-03-05 Automatic temperature controller for packaging machine heater

Publications (2)

Publication Number Publication Date
JPH03114706U JPH03114706U (en) 1991-11-26
JPH063776Y2 true JPH063776Y2 (en) 1994-02-02

Family

ID=31525421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2241190U Expired - Lifetime JPH063776Y2 (en) 1990-03-05 1990-03-05 Automatic temperature controller for packaging machine heater

Country Status (1)

Country Link
JP (1) JPH063776Y2 (en)

Also Published As

Publication number Publication date
JPH03114706U (en) 1991-11-26

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