JPH07277592A - Apparatus for inspecting accuracy in folding - Google Patents
Apparatus for inspecting accuracy in foldingInfo
- Publication number
- JPH07277592A JPH07277592A JP6096953A JP9695394A JPH07277592A JP H07277592 A JPH07277592 A JP H07277592A JP 6096953 A JP6096953 A JP 6096953A JP 9695394 A JP9695394 A JP 9695394A JP H07277592 A JPH07277592 A JP H07277592A
- Authority
- JP
- Japan
- Prior art keywords
- folding
- signature
- section
- chopper
- inspection device
- 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
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Controlling Sheets Or Webs (AREA)
- Registering Or Overturning Sheets (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、搬送される用紙を所定
の大きさに折る折り機に用いられる折り精度検査装置に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding accuracy inspection device used in a folding machine for folding a conveyed sheet into a predetermined size.
【０００２】[0002]
【従来の技術】通常、オフセット輪転機には、印刷され
た刷り物を所定の大きさに自動的に折り畳むための折り
機が付設される。この折り機として、従来、図５に模式
的に示すようにフォーマ折り部１、バックル折り部２、
そしてチョッパ折り部３の３つの折り部を備えたものが
ある。この折り機では、図６（ａ）に示すような刷り物
４が矢印Ａ方向からフォーマ折り部１へ供給されて、フ
ォーマ折り線ＬF を境として折り畳まれて、図６（ｂ）
に示すような２つ折り状態になる。2. Description of the Related Art Normally, an offset rotary press is provided with a folding machine for automatically folding printed printed matter into a predetermined size. Conventionally, as this folding machine, as shown in FIG.
Then, there is one provided with three folding parts of the chopper folding part 3. In this folding machine, a printed material 4 as shown in FIG. 6 (a) is supplied from the direction of arrow A to the former folding section 1 and folded along the former folding line L F , as shown in FIG. 6 (b).
As shown in FIG.
【０００３】２つ折りの刷り物５は、その後、バックル
折り部２へ送られる。バックル折り部２では、まず、切
断線ＬCUの所で刷り物５が切断されて図６（ｃ）に示す
ような２つ折りの折り丁６が形成される。そしてさら
に、バックル折り線ＬB を境として折り畳まれて図６
（ｄ）に示すような４つ折りの折り丁７が形成される。
この折り丁７は、図５においてさらにＡ方向へ搬送され
てチョッパ折り部３へ送られる。このチョッパ折り部３
では、チョッパ折り線ＬCHの所で折り畳まれて、目的の
大きさの８つ折りの折り丁が形成される。The half-folded printed matter 5 is then sent to the buckle folding section 2. In the buckle folding section 2, first, the printed material 5 is cut at the cutting line L CU to form a folded signature 6 as shown in FIG. 6C. Further, it is folded at the buckle fold line L B as a boundary, and then, as shown in FIG.
The folded signature 7 is formed as shown in FIG.
This signature 7 is further conveyed in the A direction in FIG. 5 and sent to the chopper folding section 3. This chopper folding part 3
Then, it is folded at the chopper fold line L CH to form an 8-fold signature of the desired size.
【０００４】作製された折り丁は、その後、適宜の部数
重ねられた後、ステープル処理等といった結束処理を受
けて製本等されるのであるが、得られた完成品が良品で
あるためには、上記の各折り部１〜３における折り畳み
が正確に行われる必要があり、仮に折り畳みが正常に行
われなくて不良の折り丁が作製された場合には、その不
良品を発見して排除する必要がある。[0004] The produced signatures are then subjected to a binding process such as a stapling process and then bound into books after stacking an appropriate number of copies. However, in order for the obtained finished product to be a good product, Folding in each of the above-mentioned folding parts 1 to 3 needs to be performed accurately, and if folding is not performed normally and a defective signature is produced, it is necessary to find and eliminate the defective product. There is.
【０００５】このような不良の折り丁を発見する装置と
して、本出願人は、特開昭６０−１３７７７０号公報に
おいて、次のような折り不良検査装置を提案した。すな
わち、この折り不良検査装置は、折り丁の搬送方向に２
つのラインセンサを配置し、さらに折り丁の搬送方向に
対して直角の方向に２つのラインセンサを配置し、これ
らのラインセンサにより、折り丁の搬送方向に対する折
り丁の前端縁の直角度及び折り丁の搬送方向の長さとい
った２要素を検出する。そして、これらの検知結果に基
づいて折り不良を検査するものである。As a device for detecting such a defective signature, the present applicant has proposed the following fold defect inspection device in Japanese Patent Laid-Open No. 60-137770. In other words, this folding defect inspection device has two
Two line sensors are arranged, and two line sensors are arranged in a direction perpendicular to the conveyance direction of the signature, and these line sensors are used to determine the squareness and the folding angle of the front edge of the signature with respect to the conveyance direction of the signature. Two factors, such as the length of the Ding in the conveying direction, are detected. Then, the folding defect is inspected based on these detection results.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上記従
来の折り不良検査装置では、各ラインセンサの検知領域
が全て、折り丁の搬送方向に対して平行方向に揃えられ
ていた。従って、折り丁の搬送方向に対して直角の方向
に関する情報を得ることができず、従って、折り不良を
高精度に検査することができなかった。特に、従来の折
り不良検査装置を、フォーマ折り部、バックル折り部及
びチョッパ折り部の３つの折り部を備えた折り機に付設
した場合には、各折り部で発生する折り不良を全て検出
することは難しかった。However, in the above-described conventional folding defect inspection apparatus, all the detection areas of each line sensor are aligned in the direction parallel to the conveyance direction of the signature. Therefore, it is not possible to obtain information about the direction perpendicular to the conveyance direction of the signature, and therefore it is not possible to inspect the folding error with high accuracy. In particular, when the conventional folding defect inspection apparatus is attached to a folding machine having three folding portions, a former folding portion, a buckle folding portion, and a chopper folding portion, all folding defects occurring at each folding portion are detected. It was difficult.
【０００７】本発明は、そのような問題点を解消するた
めになされたものであって、折り丁に発生する各種の折
り不良を１つの検査ステージにおいて短時間に検査する
ことができる折り精度検査装置を提供することを目的と
する。The present invention has been made in order to solve such a problem, and is a folding accuracy inspection capable of inspecting various folding defects occurring in a signature in one inspection stage in a short time. The purpose is to provide a device.
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
め、本発明に係る折り精度検査装置は、折り丁の搬送路
上であって折り丁の対角の２隅に相当する位置に配設さ
れた一対の折り丁検知手段を有しており、それらの折り
丁検知手段は、それぞれ、直交する２方向を検知領域と
するラインセンサを有することを特徴としている。本発
明の折り精度検査装置は、特に、フォーマ折り部、バッ
クル折り部及びチョッパ折り部の３つの折り部を有する
折り機に用いられたときに、特に有益である。In order to achieve the above object, a folding accuracy inspection apparatus according to the present invention is arranged at a position corresponding to two diagonal corners of a signature on a conveyance path of the signature. The signature detecting means has a pair of signature detecting means, and each signature detecting means has a line sensor having a detection area in two orthogonal directions. The folding accuracy inspection device of the present invention is particularly useful when used in a folding machine having three folding portions, a former folding portion, a buckle folding portion, and a chopper folding portion.
【０００９】[0009]
【作用】折り丁の対角の２隅に相当する部分のそれぞれ
に、直交する２方向を検知領域とするラインセンサを設
ければ、折り丁の搬送方向の長さ及び搬送方向に対して
直角方向の折り丁の長さを１つの検査ステージにおいて
検出できる。また、折り丁が蛇行状態で搬送されたか否
かとか、折り丁の姿勢が曲がっていないか等といった位
置不良を同一の１つの検査ステージにおいて検出でき
る。If a line sensor having two orthogonal detection areas is provided in each of the two diagonal corners of the signature, the length of the signature in the conveying direction and the direction perpendicular to the conveying direction The length of the signature in the direction can be detected in one inspection stage. Further, it is possible to detect positional defects such as whether or not the signature has been conveyed in a meandering state and whether or not the signature of the signature is bent in the same one inspection stage.
【００１０】[0010]
【実施例】図１は、本発明に係る折り丁精度検査装置の
一実施例を示している。この装置は、例えば、図５に示
した折り機においてチョッパ折り部３の中に設置され
る。チョッパ折り部３の内部には、図１に示すように、
矢印Ａ方向から搬送されてきた折り丁、実施例の場合は
４つ折りの折り丁７を停止させるために折り丁の搬送路
に臨出するストッパ８と、チョッパ折り線ＬCHに押し当
てられるチョッパ９とを有している。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of a signature accuracy inspection apparatus according to the present invention. This device is installed, for example, in the chopper folding section 3 in the folder shown in FIG. Inside the chopper folding section 3, as shown in FIG.
A stopper 8 that comes out in the transport path of the signature to stop the signature that has been conveyed from the direction of arrow A, in the case of the embodiment, a signature 7 that is folded in four, and a chopper that is pressed against the chopper folding line L CH. 9 and 9.
【００１１】折り丁の搬送路Ａの上方位置には、２個の
折り丁検知装置１０ａ及び１０ｂが設けられている。こ
れらの折り丁検知装置は、ストッパ８によって停止させ
られた折り丁７の対角の２隅に相当する位置に配設され
ていて、それぞれが、Ｘ方向ラインセンサ１１Ｘ，１２
Ｘ及びＹ方向ラインセンサ１１Ｙ，１２Ｙの２個のセン
サを有している。各ラインセンサは、例えば、ＣＣＤセ
ンサによって構成されており、Ｘ方向ラインセンサ１１
Ｘ，１２Ｘの検知領域Ｐは、折り丁搬送方向Ａに対して
直角方向（すなわち、Ｘ方向）に適宜の長さに設定さ
れ、そしてＹ方向ラインセンサ１１Ｙ，１２Ｙの検知領
域Ｑは、折り丁搬送方向Ａに対して平行方向（すなわ
ち、Ｙ方向）に適宜の長さに設定されている。Two signature detecting devices 10a and 10b are provided above the transport path A of the signatures. These signature detecting devices are arranged at positions corresponding to two diagonal corners of the signature 7 stopped by the stopper 8, and each of them is provided with the X-direction line sensors 11X and 12X.
It has two sensors, X and Y direction line sensors 11Y and 12Y. Each line sensor is composed of, for example, a CCD sensor, and the X-direction line sensor 11
The detection areas P of X and 12X are set to an appropriate length in the direction perpendicular to the signature conveyance direction A (that is, the X direction), and the detection areas Q of the Y-direction line sensors 11Y and 12Y are the signature areas. The length is set to an appropriate length in the direction parallel to the transport direction A (that is, the Y direction).
【００１２】各ラインセンサ１１Ｘ，１２Ｘ，１１Ｙ，
１２Ｙの出力信号は演算装置１２へ送られ、演算装置１
２は各出力信号に基づいて以下のような各種の演算を行
う。まず第１は、対角線上の２箇所のＸ方向ラインセン
サ１１Ｘ，１２Ｘによって、折り丁７の搬送方向に対し
て直角方向の長さＷを演算する。また、対角線上の２箇
所のＹ方向センサ１１Ｙ，１２Ｙによって、折り丁７の
搬送方向の長さＤを演算する。これらの長さＷ及びＤ
が、決められた正規の寸法でない場合は、チョッパ折り
部３の前工程の折り部、すなわちフォーマ折り部１及び
バックル折り部２のいずれかにおいて折り不良が発生し
たものと判定できる。Each line sensor 11X, 12X, 11Y,
The output signal of 12Y is sent to the arithmetic unit 12, and the arithmetic unit 1
2 performs the following various calculations based on each output signal. First of all, the length W in the direction perpendicular to the transport direction of the signature 7 is calculated by the X-direction line sensors 11X and 12X at the two diagonal positions. Further, the length D in the transport direction of the signature 7 is calculated by the two Y-direction sensors 11Y and 12Y on the diagonal line. These lengths W and D
However, if the size is not the determined regular size, it can be determined that a folding defect has occurred in the folding portion of the chopper folding portion 3 in the previous process, that is, the former folding portion 1 or the buckle folding portion 2.
【００１３】また、演算装置１２は、チョッパ折り部３
まで搬送されて停止した折り丁７に関して、蛇行の程
度、曲がりの程度及び停止位置のバラツキの程度の各要
素を判定する。具体的には、図２に示すように、２個の
Ｘ方向センサ１１Ｘ及び１２Ｘからの位置情報によっ
て、折り丁７が蛇行をしているか否かを判定する。実線
で示す状態は、搬送方向Ａから見て折り丁７が破線で示
す正規の位置から左方へ蛇行した状態を示している。The arithmetic unit 12 also includes a chopper folding section 3
With respect to the signature 7 that has been conveyed to and stopped, the respective factors such as the degree of meandering, the degree of bending, and the degree of variation in the stop position are determined. Specifically, as shown in FIG. 2, the position information from the two X-direction sensors 11X and 12X is used to determine whether the signature 7 is meandering. The state shown by the solid line shows the state where the signature 7 meanders to the left from the normal position shown by the broken line when viewed from the transport direction A.
【００１４】また、図３に示すように、２個のＹ方向セ
ンサ１１Ｙ及び１２Ｙからの位置情報によって、折り丁
７の停止位置が正常か否かを判定する。実線で示す状態
は、折り丁７が破線で示す正規の停止位置に達する前に
停止してしまった状態を示している。さらに、図４に示
すように、４個全てのセンサ１１Ｘ，１２Ｘ，１１Ｙ，
１２Ｙからの位置情報によって、折り丁７が曲がってい
るか否かを判定する。実線で示す状態は、破線で示す正
規位置に対して折り丁７が反時計方向へ曲がった状態を
示している。Further, as shown in FIG. 3, it is determined whether or not the stop position of the signature 7 is normal based on the position information from the two Y-direction sensors 11Y and 12Y. The state shown by the solid line shows the state in which the signature 7 has stopped before reaching the regular stop position shown by the broken line. Further, as shown in FIG. 4, all four sensors 11X, 12X, 11Y,
Based on the position information from 12Y, it is determined whether the signature 7 is bent. The state indicated by the solid line shows the state in which the signature 7 is bent counterclockwise with respect to the regular position indicated by the broken line.
【００１５】以上のようにして、各種の折り不良が検出
された場合には、折り丁搬送路上の適当な箇所に設けた
回収装置を作動して、その不良の折り丁を搬送路から回
収する。１箇所の検査ステージであるチョッパ折り部３
に設けた検査装置のみによって、フォーマ折り部１、バ
ックル折り部２及びチョッパ折り部３の全ての部分に発
生する折り不良を検出できるので、回収装置の動作を制
御するに際しての処理が簡単になる。また、１箇所の検
査ステージで済むので、折り機の構造を複雑化すること
がなく、また、製造コストが安くなる。As described above, when various fold defects are detected, the collecting device provided at an appropriate position on the signature transport path is operated to recover the defective signature from the transport path. . Chopper folding part 3 which is an inspection stage at one place
Since only the inspection device provided in the above can detect the folding failure that occurs in all of the former folding portion 1, the buckle folding portion 2, and the chopper folding portion 3, the process for controlling the operation of the collecting device is simplified. . Further, since the inspection stage at one place is sufficient, the structure of the folding machine is not complicated and the manufacturing cost is reduced.
【００１６】以上、好ましい実施例をあげて本発明を説
明したが、本発明はその実施例に限られることなく、請
求の範囲に記載した技術的範囲内で種々に改変できる。
例えば本発明は、必ずしも、フォーマ折り部、バックル
折り部及びチョッパ折り部の３個の折り部を備えた折り
機に用いる場合に限られず、それら各折り部のうちの１
個又は２個を備えた折り機にも適用できる。また、ライ
ンセンサをＣＣＤセンサ以外の任意のセンサによって構
成できる。また、本発明の折り精度検査装置を、チョッ
パ折り部以外の任意の折り丁搬送路上に設置することも
できる。The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to the embodiments and can be variously modified within the technical scope described in the claims.
For example, the present invention is not necessarily limited to the case where the present invention is used in a folding machine having three folding parts, that is, a former folding part, a buckle folding part and a chopper folding part.
It can also be applied to a folding machine equipped with one or two pieces. Further, the line sensor can be constituted by any sensor other than the CCD sensor. Further, the folding accuracy inspection apparatus of the present invention can be installed on any signature conveyance path other than the chopper folding section.
【００１７】[0017]
【発明の効果】本発明によれば、折り丁の搬送方向及び
それと直角方向の２方向に検知領域を有するラインセン
サによって検査を行うこと及びそのラインセンサを折り
丁の対角線上の２隅に設けることの２つの理由により、
この１箇所の検査ステージだけで折り丁に関する各種の
折り不良を判定できる。According to the present invention, the inspection is performed by the line sensor having the detection areas in two directions, ie, the conveyance direction of the signature and the direction perpendicular thereto, and the line sensors are provided at two corners on the diagonal of the signature. For two reasons:
Various folding defects related to a signature can be determined only by this one inspection stage.
【００１８】請求項２記載の折り精度検査装置によれ
ば、チョッパ折り部だけ、すなわち１検査ステージだけ
に設けた１個のラインセンサユニットだけで、フォーマ
折り部、バックル折り部及びチョッパ折り部の３箇所で
発生する折り不良の全てを検出できる。According to the folding accuracy inspection device of the second aspect, the former folding portion, the buckle folding portion, and the chopper folding portion can be formed only by the chopper folding portion, that is, by only one line sensor unit provided on only one inspection stage. It is possible to detect all folding defects that occur at three locations.
【００１９】[0019]
【図１】本発明に係る折り精度検査装置の一実施例を示
す斜視図である。FIG. 1 is a perspective view showing an embodiment of a folding accuracy inspection device according to the present invention.
【図２】折り不良の検査例、特に折り丁の蛇行を検出す
る場合を模式的に示す平面図である。FIG. 2 is a plan view schematically showing an example of inspection of folding defects, particularly a case of detecting meandering of a signature.
【図３】折り不良の検査例、特に折り丁の停止位置不良
を検出する場合を模式的に示す平面図である。FIG. 3 is a plan view schematically showing an example of inspection of a folding defect, particularly a case where a stop position defect of a signature is detected.
【図４】折り不良の検査例、特に折り丁の曲がりを検出
する場合を模式的に示す平面図である。FIG. 4 is a plan view schematically showing an example of inspection of a folding defect, particularly a case of detecting a bend of a signature.
【図５】折り機の一例を模式的に示す図である。FIG. 5 is a diagram schematically illustrating an example of a folding machine.
【図６】用紙の折り手順を順を追って示す図である。FIG. 6 is a diagram showing a paper folding procedure in order.
１ フォーマ折り部 ２ バックル折り部 ３ チョッパ折り部 ４ 刷り物 ５ ２つ折りの刷り物 ６ ２つ折りの折り丁 ７ ４つ折りの折り丁 ８ ストッパ ９ チョッパ １０ａ，１０ｂ 折り丁検知装置 １１Ｘ，１２Ｘ Ｘ方向ラインセンサ １１Ｙ，１２Ｙ Ｙ方向ラインセンサ 1 Former Folding Part 2 Buckle Folding Part 3 Chopper Folding Part 4 Printed Material 5 Bi-Folded Material 6 Bi-Folded Signature 7 7 4-Folded Signature 8 Stopper 9 Chopper 10a, 10b Signature Detection Device 11X, 12X X Direction Line Sensor 11Y, 12Y Y direction line sensor
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ６５Ｈ 9/00 Ｈ 45/16 9245−3Ｆ 45/18 9245−3Ｆ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location B65H 9/00 H 45/16 9245-3F 45/18 9245-3F
Claims (2)
り機に用いられる折り精度検査装置において、 折り丁の搬送路上であって折り丁の対角の２隅に相当す
る位置に配設された一対の折り丁検知手段を有してお
り、 それらの折り丁検知手段は、それぞれ、直交する２方向
を検知領域とするラインセンサを有することを特徴とす
る折り精度検査装置。1. A folding accuracy inspection device used in a folding machine that folds a sheet to be conveyed into a predetermined size, wherein the folding accuracy inspection device is provided at a position corresponding to two diagonal corners of the signature on a conveyance path of the signature. A folding accuracy inspection device characterized in that it has a pair of signature detection means, and each of these signature detection means has a line sensor having a detection area in two orthogonal directions.
て、フォーマ折り部、バックル折り部及びチョッパ折り
部の３つの折り部を有する折り機に用いられる折り精度
検査装置において、折り丁検知手段はチョッパ折り部に
設けられることを特徴とする折り精度検査装置。2. The folding accuracy inspection device according to claim 1, wherein the folding accuracy inspection device is used in a folding machine having three folding parts, a former folding part, a buckle folding part and a chopper folding part. The folding accuracy inspection device is characterized in that the means is provided at the chopper folding portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6096953A JPH07277592A (en) | 1994-04-11 | 1994-04-11 | Apparatus for inspecting accuracy in folding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6096953A JPH07277592A (en) | 1994-04-11 | 1994-04-11 | Apparatus for inspecting accuracy in folding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07277592A true JPH07277592A (en) | 1995-10-24 |
Family
ID=14178654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6096953A Pending JPH07277592A (en) | 1994-04-11 | 1994-04-11 | Apparatus for inspecting accuracy in folding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07277592A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10063528A1 (en) * | 2000-12-20 | 2003-02-27 | Heidelberger Druckmasch Ag | Method and device for determining the accuracy of a fold position |
-
1994
- 1994-04-11 JP JP6096953A patent/JPH07277592A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10063528A1 (en) * | 2000-12-20 | 2003-02-27 | Heidelberger Druckmasch Ag | Method and device for determining the accuracy of a fold position |
| US6935998B2 (en) | 2000-12-20 | 2005-08-30 | Goss International Americas, Inc. | Method and device for determining the accuracy of a fold position |
| DE10063528B4 (en) * | 2000-12-20 | 2011-05-19 | Goss International Montataire S.A. | Method for determining the accuracy of a folded position |
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