JPH0321439A - Blanking inspecting device - Google Patents

Abstract

PURPOSE:To save the labor requiring for inspection by a structure wherein both a bringing-in means for recognizing the blanked state of a blanking form and for bringing the recognized blanked state in the device concerned and discriminating means for discriminating the blanking result of the blanking form whether it is good or bad are equipped. CONSTITUTION:After being blanked at a blanking section 3, blanking form 34 is carried between detecting photosensors 31-33 and floodlight projectors. When the light beam received by the photosensor 31 is shielded, the signal of the photosensor 31 is turned from high level to low level. Said change of signal is employed as a form tip signal. And the change of signal, which develops when the light beam received by the photosensor 33 is shielded, is employed as a form tail signal. On the basis of the two signals, an inspection gate signal is generated. On the other hand, signal sent from photosensor group 32 are inputted through an OR circuit into an AND circuit together with the inspection gate signal. When no unnecessary part is present, a high level signal is outputted from the AND circuit. At this time, pato light(R), buzzer signal and blanking machine stop signal are outputted from an inspecting section. Thus, the presence or absence of the unnecessary part can be automatically inspected and the saving of the labor requiring for inspection and the rationalization of inspection can be performed.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 この発明は祇容器等の製造工程において、打ち抜き用紙
からブランクスに打ち抜く際の打抜き状態を検査する打
ち抜き検査装置に関するものである． 〈従来技術及び発明が解決しようとする課題〉近年飲料
用容器でビン、缶に代わって紙容器が広く使われるよう
になった．これらの紙容器は、打ち抜き用紙を打ち抜き
機で所定の位置及び大きさに打ち抜かれ、更に不要な部
分が取りのぞかれ（通称、ムシリと呼ばれる）、その後
サック貼と呼ばれる工程で糊付け、製箱される。打ち抜
き用紙は既に印刷が施されているもの、白紙の状態のも
のなど様々なものが使われる。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a punching inspection device for inspecting the condition of punching when punching blanks from punched paper in the manufacturing process of containers, etc. <Prior art and problems to be solved by the invention> In recent years, paper containers have come to be widely used in place of bottles and cans for beverage containers. These paper containers are made by punching paper into predetermined positions and sizes using a punching machine, removing unnecessary parts (commonly called musiri), then gluing in a process called sack pasting, and making boxes. be done. Various types of punching paper are used, including those that have already been printed and those that are blank.

以下図面に基づいて説明する。第１図は打ち抜き機の構
成と各部分での打ち抜き用紙の形体を示す。通常打ち抜
き機は給紙部（１）見当合せ部（２）、打ち抜き部（３
）、ムシリ部（４）、排祇部（５）等から構威されてい
る．打ち抜き用紙は、上記打ち抜き機の給紙部（１）に
一枚ずつ給紙され、見当合わせ部（２）で打ち抜き見当
が合わされ、更に打ち抜き部（３）で打ち抜き用金型（
１２）を用いて打ち抜かれる．さらに、打ち抜き部（３
）で打ち抜かれた打ち抜き用紙はムシリ部（４）でムシ
リ用ビン台（１３）で不要な部分が取りのぞかれ、紙容
器の部分（ブランクス）（９）となり、該ブランクス（
９）は更に排紙部（５）へ送られる． 第２図に代表的な祇容器のブランクスの一部を示す。上
記工程の打ち抜き部（３）において不要な部分（２３）
を打ち抜かなければならない．ここで不要な部分（２３
）は、ブランクス（２２）とブリンジ（２４）と呼ばれ
る打ち抜かれない線状の小さな部分で結合が保たれてい
るが、該ブリッジの幅は紙容器の出来映えの観点やムシ
リ易さの観点から出来る限り細い事が望ましい．しかし
一方、打ち抜き部で打ち抜かれた打ち抜き用紙の不要な
部分は、本来、ムンリ部で取り除かれるべきものである
が、プリノジの幅が細いためちぎれやすく、打ち抜き部
内でブランクス（２２）との結合が保たれなくなり打ち
抜き部内に不要な部分（２３）が残ってしまう事がある
．これは、打ち抜き金型（Ｉ２）の破損のトラブルや順
次送られてくる打ち抜き用紙を不良品にしてしまう原因
となる．従来、この不要部分の有無を、検査員の目視に
より検査していたが、ブランクスは毎秒２枚程度の速い
スピードで流れており、目視では完全には検査出来なか
った。This will be explained below based on the drawings. FIG. 1 shows the configuration of the punching machine and the shape of the punched paper in each section. Normally, a punching machine consists of a paper feed section (1), a registration section (2), a punching section (3
), Musiri Department (4), and Exegi Department (5), etc. The punching paper is fed one by one to the paper feed section (1) of the punching machine, the punching register is matched at the registration section (2), and then the punching paper is inserted into the punching die (3) at the punching section (3).
12). Furthermore, the punched part (3
) The punched paper is removed by the punching section (4) and the unnecessary part is removed by the punching bin stand (13) to become the paper container part (blanks) (9), and the blanks (
9) is further sent to the paper discharge section (5). Figure 2 shows a portion of a typical Gi container blank. Unnecessary part (23) in the punching part (3) of the above process
must be punched out. Here is the unnecessary part (23
), the bond is maintained by a small unpunched linear part called a blank (22) and a bridge (24), but the width of this bridge can be determined from the viewpoint of the workmanship of the paper container and the ease of tearing. It is desirable that it be as thin as possible. However, on the other hand, the unnecessary parts of the punched paper punched in the punching section should originally be removed in the blanking section, but because the width of the pre-nozzle is narrow, it is easy to tear, and the connection with the blank (22) in the punching section is difficult. It may not be maintained and an unnecessary part (23) may remain inside the punched part. This causes problems such as breakage of the punching die (I2) and failure of the punched sheets that are sent one after another. Conventionally, the presence or absence of these unnecessary parts has been visually inspected by an inspector, but blanks flow at a high speed of about two sheets per second, making it impossible to completely inspect them visually.

〈課題を解決するための手段〉 この発明は上述した事情に対処すべくなされたもので、
打ち抜き用紙からブランクスが正常に打ち抜かれたかど
うかを検査する打抜き検査装置において、前記打ち抜き
用紙の打ち抜き状態を認識し、該ｔ！識した打抜き状態
を取り込む取込み手段と、打ち抜き用紙の打ち抜き結果
の良、不良を判定する判定手段とを具備して或る打ち抜
き検査装置を開示することにより解決し得たものである
．ここで、打ち抜き用紙の打ち抜き状態を取込む手段は
、打ち抜き用紙の搬送方向の異なる位置に配置された少
なくとも２つのセンサと、打ち抜き用紙の搬送方向にお
ける前記少なくとも２つのセンサの間に配置された複数
個のセンサとにより構成される．自動的に不要な部分の
有無を検査でき、検査の省力化、合理化を実現できる打
ち抜き機検査装置を提供することをその目的とする。<Means for solving the problem> This invention was made to deal with the above-mentioned circumstances, and
A punching inspection device that inspects whether a blank has been correctly punched from a punching sheet recognizes the punching state of the punching sheet and checks whether the blank is punched out correctly or not. This problem could be solved by disclosing a certain punching inspection device that is equipped with an importing means for importing the recognized punching state and a determining means for determining whether the punching result of the punched sheet is good or bad. Here, the means for capturing the punching state of the punched sheet includes at least two sensors arranged at different positions in the conveying direction of the punched sheet, and a plurality of sensors arranged between the at least two sensors in the conveying direction of the punched sheet. It consists of several sensors. The purpose of the present invention is to provide a punching machine inspection device that can automatically inspect the presence or absence of unnecessary parts and realize labor saving and rationalization of inspection.

〈作用〉 この発明による打ち抜き検査装置によれば、打ち抜き直
後の打ち抜き用紙の搬送方向における２つの異なる位置
に、打ち抜き用紙の先端部を検出する光センサと、後端
部を検出する光センサを配置し、該先端部を検出する光
センサを遮光すると咳光センサの信号はＨ−４Ｌに変化
し、この信号変化を用紙先端信号とし、また後端部を検
出する光センサの遮光から受光時の信号変化を該光セン
サの信号はＨ−４Ｌに変化し用紙後端信号とし、この間
検査ゲート信号を発生させる．この検査ゲート信号の発
生時に上記２つのセンサの間に配置された複数個の光セ
ンサ群から信号を発生させ、その出力信号に応じて自動
的に不要な部分の有無を検査する．これにより、高速で
流れるブランクスの打ち抜き状態の検査が自動的に行え
る様になり、検査の省力化、合理化が実現される。<Operation> According to the punching inspection device according to the present invention, an optical sensor that detects the leading edge of the punched paper and an optical sensor that detects the trailing edge of the punched paper are arranged at two different positions in the conveying direction of the punched paper immediately after punching. However, when the light sensor that detects the leading edge is blocked, the signal of the cough light sensor changes to H-4L, and this signal change is used as the paper leading edge signal. When the signal changes, the signal of the optical sensor changes to H-4L, which is used as a trailing edge signal of the paper, and during this time, an inspection gate signal is generated. When this inspection gate signal is generated, a signal is generated from a group of optical sensors placed between the two sensors, and the presence or absence of unnecessary parts is automatically inspected according to the output signal. This makes it possible to automatically inspect the state of punching of blanks flowing at high speed, resulting in labor-saving and rationalization of inspection.

〈実施例〉 以下図面を参考にしてこの発明による打ち抜き検査装置
の一実施例を説明する。<Embodiment> An embodiment of the punching inspection apparatus according to the present invention will be described below with reference to the drawings.

第３図は実施例の−構威を示す概略図である。打ち抜き
部（３）とムシリ部（４）の間には、搬送されてくる打
ち抜かれた用紙（３４）を挟むようにして、光センサと
投光器とが配置されている。FIG. 3 is a schematic diagram showing the structure of the embodiment. An optical sensor and a light projector are arranged between the punching section (3) and the punching section (4) so as to sandwich the punched sheet (34) being conveyed.

光センサ（３１）は用紙（３４）の先端部検出用であり
、光センサ（３３）は用紙（３４）の後端部検出用であ
る．また、光センサ群（３２）は不要な部分（２３）（
第２図）の有無検出用であり、本実施例においては３個
配置されている（図示せず）． この実施例の動作を第３図の構成概略図と第４図のタイ
ミングチャート図及び第５図の判定回路の検査部（３５
）の一部を示す説明図を参考にして説明する。打ち抜き
用紙（３４）は、打ち抜き部（３）で打ち抜かれた後、
検出用光センサ（３１〜３３）と投光器の間に搬送され
る．用紙が搬送され、光センサ（３ｌ）を遮光すると光
センサ（３１）の信号はＨ−＋Ｌに変化する．この信号
変化を用紙先端信号とし、また光センサ（３３）の受光
から遮光時の信号変化を用紙後端信号とし、これら２つ
の信号から検査ゲート信号を発生させる。一方光センサ
群（３２）からの信号は、ＯＲ回路を経て検査ゲート信
号と共にＡＮＤ回路に入力される，ＡＮＤ回路からは、
不要部分がない場合はＨの信号が出力される。この時、
検査部からはバトライト及びブザー信号や、打ち抜き機
停止信号が出力される．上述の実施例では、用紙先端及
び後端検出用に透過型光センサを用いたが、反射型光セ
ンサを用いてもよく、更には、打ち抜き機から直接信号
を取っても良い．又光センサ群（３２）に透過型光セン
サを用いたが、反射型光センサを用いてもよく、更には
ラインセンサを用いてもよい。さらに、本実施例におい
ては３個のセンサ群を用いて光センサ群としたため、ブ
ランクスが流れる際の蛇行にも対応できる．〈発明の効
果〉 以上説明したように、この発明によれば、自動的に不要
な部分の有無の検査ができ、検査の７省力化、合理化を
実現できる打ち抜き機検査装置となる．The optical sensor (31) is used to detect the leading edge of the paper (34), and the optical sensor (33) is used to detect the trailing edge of the paper (34). In addition, the optical sensor group (32) is an unnecessary part (23) (
(Fig. 2), and in this embodiment, three are arranged (not shown). The operation of this embodiment is explained by the schematic configuration diagram in FIG. 3, the timing chart diagram in FIG. 4, and the inspection section (35
) will be explained with reference to an explanatory diagram showing a part of the After the punching paper (34) is punched out in the punching section (3),
It is conveyed between the detection optical sensor (31-33) and the floodlight. When the paper is conveyed and the light sensor (3l) is shielded from light, the signal of the light sensor (31) changes to H-+L. This signal change is used as a paper leading end signal, and the signal change from light reception to light blocking by the optical sensor (33) is used as a paper rear end signal, and an inspection gate signal is generated from these two signals. On the other hand, the signal from the optical sensor group (32) is input to the AND circuit together with the inspection gate signal via the OR circuit.
If there is no unnecessary part, an H signal is output. At this time,
The inspection department outputs batt light and buzzer signals as well as a punching machine stop signal. In the above embodiment, a transmission type optical sensor is used to detect the leading edge and trailing edge of the paper, but a reflective type optical sensor may also be used. Furthermore, signals may be obtained directly from the punching machine. Further, although a transmission type optical sensor is used for the optical sensor group (32), a reflective type optical sensor or even a line sensor may be used. Furthermore, in this embodiment, three sensor groups are used to form an optical sensor group, so it is possible to cope with meandering when the blanks flow. <Effects of the Invention> As explained above, according to the present invention, a punching machine inspection device is provided which can automatically inspect the presence or absence of unnecessary parts and realize labor saving and rationalization of inspection.

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

第１図は打ち抜き機の構戒と各部分での打ち抜き用紙の
形体を示す．第２図は代表的な祇容器のブランクスの一
部を示す．第３図は実施例の構戊を示す概略図である．
第４図は検査のタイくングチャート図、第５図は判定回
路の検査部の一部を示す説明図である． １・・・給紙部 ２・・・見当合わせ部 ３・・・打ち抜き部 ４・・・ムシリ部 ５・・・排祇部 ２３・・不要部分 ２４・・ブリッジ 第１図Figure 1 shows the configuration of the punching machine and the shape of the punched paper at each section. Figure 2 shows some of the typical Gi container blanks. Figure 3 is a schematic diagram showing the structure of the embodiment.
FIG. 4 is an inspection tying chart, and FIG. 5 is an explanatory diagram showing a part of the inspection section of the determination circuit. 1...Paper feed section 2...Registration section 3...Punching section 4...Mushiri section 5...Ejecting section 23...Unnecessary part 24...Bridge Fig. 1

Claims (2)

【特許請求の範囲】[Claims] （１）打ち抜き用紙からブランクスが正常に打ち抜かれ
たかどうかを検査する打抜き検査装置において、前記打
ち抜き用紙の打ち抜き状態を認識し、該認識した打抜き
状態を取り込む取込み手段と、打ち抜き用紙の打ち抜き
結果の良、不良を判定する判定手段とを具備して成るこ
とを特徴とする打ち抜き検査装置。(1) A punching inspection device that inspects whether a blank has been correctly punched from a punching sheet, including a means for recognizing the punching state of the punching sheet and importing the recognized punching state, and a means for checking whether the punching result of the punching sheet is good or not. 1. A punching inspection device comprising: a determining means for determining a defect. （２）打ち抜き用紙を一枚ずつ給紙手段により打ち抜き
部へ送り出し、その打ち抜き部で所定の位置及び大きさ
のブランクスを打ち抜く装置において、打ち抜き用紙の
搬送方向の異なる位置に配置された少なくとも２つのセ
ンサと、打ち抜き用紙の搬送方向における前記少なくと
も２つのセンサの間に配置された複数個のセンサ群とに
より、打ち抜き用紙の打ち抜き状態を取込む手段と、打
ち抜きの良、不良を判定する検査部とを具備する打ち抜
き検査装置。(2) In an apparatus in which punching sheets are sent one by one to a punching section by a paper feeding means and blanks of a predetermined position and size are punched out at the punching section, at least two blanks are arranged at different positions in the conveying direction of the punching sheet. a sensor and a plurality of sensor groups disposed between the at least two sensors in the conveyance direction of the punching paper, means for detecting the punching state of the punching paper; and an inspection unit for determining whether the punching is good or bad. A punching inspection device equipped with.