JP2014034164A - Rejection device - Google Patents

Rejection device Download PDF

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JP2014034164A
JP2014034164A JP2012177056A JP2012177056A JP2014034164A JP 2014034164 A JP2014034164 A JP 2014034164A JP 2012177056 A JP2012177056 A JP 2012177056A JP 2012177056 A JP2012177056 A JP 2012177056A JP 2014034164 A JP2014034164 A JP 2014034164A
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suction
defective product
outer cylinder
negative pressure
conveyor
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JP6094090B2 (en
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Yasushi Fujii
康志 藤井
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a rejection device capable of rejecting a defective article from a conveyor and added without rectifying an existing conveyor.SOLUTION: A suction roller 11 of a rejection device 1 comprises: an outer cylinder 110 rotated at the same speed as that of a conveyor 2; and an inner cylinder 111 having a negative pressure chamber 111a communicated with the suction hole 10a of the outer cylinder 110. The negative pressure chamber 111a is configured to adsorb a defective particle 3a by the outer cylinder 110 and feed desorbed from the outer cylinder 110 to a discharge tray 12 by rotation of the outer cylinder 110. When a defect inspection sensor 15 detects the defective article 3a, the control unit 10 of the rejection device 1 sets the negative pressure chamber 111a to negative pressure at timing when the head of the defective article 3a reaches the tail end of the suction angle of the suction roller 11, and releases the negative pressure of the negative pressure chamber 111a when the tail end of the defective article 3a reaches the tail end of the suction angle of the suction roller 11.

Description

本発明は、搬送コンベアにて搬送されているブランクの中から不良品をリジェクトするための技術に関する。   The present invention relates to a technique for rejecting a defective product from a blank transported by a transport conveyor.

打ち抜き加工されたブランクの搬送には搬送コンベアを利用することが一般的である。例えば、紙器に用いるカートンブランクは、打ち抜き機で打ち抜き加工された後、搬送コンベアにて搬送されて箱詰めされる。   In general, a transport conveyor is used to transport the blank that has been punched. For example, a carton blank used for a paper container is punched by a punching machine, and is then transported by a transport conveyor and boxed.

打ち抜き加工されたブランク全てが良品ならよいが、搬送コンベアにて搬送されるブランクには、打ち抜き工程等で発生した不良品も混じるため、搬送コンベア上で不良品をリジェクトすることが必要になる。   It is sufficient that all blanks that have been punched are non-defective products. However, defective products generated in the punching process and the like are also mixed in the blanks transported by the transport conveyor, so it is necessary to reject the defective products on the transport conveyor.

搬送コンベア上で不良品をリジェクトする発明として、例えば、特許文献１、２において、搬送コンベアの搬送路の途中に排出機構を設け、排出機構を作動させることで不良品を排出する装置が開示されている。   As inventions for rejecting defective products on the conveyor, for example, Patent Documents 1 and 2 disclose an apparatus that discharges defective products by providing a discharge mechanism in the middle of the transport path of the conveyor and operating the discharge mechanism. ing.

特開平６−９９５２１号公報JP-A-6-99521 特開２００６−６２１０６号公報JP 2006-62106 A

しかしながら、上述した従来技術は、不良品を排出口に誘導する排出機構を搬送コンベアの途中に設ける必要があるため、不良品を排出する機構を既存の生産ラインに増設する際は、搬送コンベアを延長するなど既存の生産ラインの改造が必要になる。   However, the above-described prior art requires that a discharge mechanism for guiding defective products to the discharge port is provided in the middle of the conveyor, so when adding a mechanism for discharging defective products to an existing production line, It is necessary to modify the existing production line such as extending it.

そこで、本発明は、ブランクの搬送に利用する搬送コンベアから不良品をリジェクトでき、既存の搬送コンベアを改造することなく増設可能なリジェクト装置を提供することを目的とする。   Therefore, an object of the present invention is to provide a reject device that can reject a defective product from a transport conveyor used for transporting a blank and can be added without modifying an existing transport conveyor.

本発明にかかるリジェクト装置は、上述した課題を解決するために、不良品が排出される排出トレイと、搬送コンベアで搬送されているブランクの不良を検査する不良検査センサと、前記不良検査センサが検出した不良品を搬送コンベアからピックアップして前記排出トレイまで搬送するサクションローラと、不良品をリジェクトする動作を制御する制御部を備える。   In order to solve the above-described problems, the reject device according to the present invention includes a discharge tray from which defective products are discharged, a defect inspection sensor that inspects a defect of a blank being conveyed by a conveyor, and the defect inspection sensor. A suction roller that picks up the detected defective product from the conveyor and conveys it to the discharge tray, and a control unit that controls the operation of rejecting the defective product.

搬送コンベア上の不良品をピックアップして前記排出トレイまで搬送できるように、本発明にかかるリジェクト装置の前記サクションローラは、搬送コンベアと同速で回転し、表面に複数の吸引孔が設けられた外筒と、前記外筒の吸引孔と連通する負圧室が設けられた内筒を有し、前記負圧室は、前記サクションローラの吸引角度が、前記搬送コンベア上の不良品を前記外筒によって吸着し、前記外筒から吸着解放になった不良品が前記外筒の回転によって前記排出トレイに送り出されるように形成されている。   The suction roller of the reject device according to the present invention rotates at the same speed as the conveyor and has a plurality of suction holes on the surface so that defective products on the conveyor can be picked up and conveyed to the discharge tray. An outer cylinder and an inner cylinder provided with a negative pressure chamber communicating with the suction hole of the outer cylinder. The negative pressure chamber has a suction angle of the suction roller to remove defective products on the conveyor. A defective product that is adsorbed by the cylinder and released from the outer cylinder by suction is sent out to the discharge tray by the rotation of the outer cylinder.

また、本発明にかかるリジェクト装置の前記制御部は、前記不良検査センサが不良品を検出すると、前記不良検査センサが検出した不良品の先頭が前記サクションロールの吸引角度の始端に到達するタイミングで前記内筒の負圧室を負圧にセットし、不良品の後尾が前記サクションロールの吸引角度の終端にくるタイミングで前記内筒の負圧室の負圧を解除する動作を行う。   In addition, when the defect inspection sensor detects a defective product, the control unit of the rejection apparatus according to the present invention detects the defective product detected by the defect inspection sensor at a timing at which the leading end of the suction angle of the suction roll arrives. The negative pressure chamber of the inner cylinder is set to a negative pressure, and the operation of releasing the negative pressure of the negative pressure chamber of the inner cylinder is performed at the timing when the rear end of the defective product comes to the end of the suction angle of the suction roll.

本発明にかかるリジェクト装置において、前記不良検査センサが検出した不良品が正常に排出されたことを確認できるように、前記排出トレイに排出される不良品を検知する排出検知センサを備え、前記制御部は、前記不良検査センサが不良品を検出した後、前記サクションロールによって前記排出トレイに排出される不良品を前記排出検知センサが検知しない場合、前記搬送コンベアと前記外筒を停止させる処理を行うとよい。   The rejection apparatus according to the present invention includes a discharge detection sensor that detects a defective product discharged to the discharge tray so that it can be confirmed that the defective product detected by the defect inspection sensor has been normally discharged. When the defective inspection sensor detects a defective product, and the discharge detection sensor does not detect a defective product discharged to the discharge tray by the suction roll, the unit stops the conveyor and the outer cylinder. It is good to do.

このように、本発明にかかるリジェクト装置によれば、サクションロールにより搬送コンベアから不良品をピックアップするため、サクションロールを追加できるスペースがあれば、既存の搬送コンベアを改造することなくリジェクト装置を増設できる。   As described above, according to the reject device according to the present invention, since a defective product is picked up from the transport conveyor by the suction roll, if there is a space where a suction roll can be added, the reject device can be added without modifying the existing transport conveyor. it can.

本実施形態のリジェクト装置の構成を説明する図。The figure explaining the structure of the rejection apparatus of this embodiment. サクションロールの構造を説明する図。The figure explaining the structure of a suction roll. サクションロールの断面を説明する図。The figure explaining the cross section of a suction roll. 不良品をリジェクトする動作を説明する第１図。FIG. 1 is a diagram illustrating an operation for rejecting a defective product. 不良品をリジェクトする動作を説明する第２図。FIG. 2 illustrates an operation for rejecting a defective product. 不良品をリジェクトする動作を説明する第３図。FIG. 3 illustrates an operation for rejecting a defective product. 不良品をリジェクトする動作を説明する第４図。FIG. 4 illustrates an operation for rejecting a defective product. 不良品をリジェクトする動作を説明する第５図。FIG. 5 illustrates an operation for rejecting a defective product. 不良品をリジェクトする動作を説明する第６図。FIG. 6 illustrates an operation for rejecting a defective product. 不良品をリジェクトする動作を説明する第７図。FIG. 7 illustrates an operation for rejecting a defective product.

ここから、本発明の好適な実施形態について、図面を参照しながら詳細に説明する。   Now, preferred embodiments of the present invention will be described in detail with reference to the drawings.

図１は、本実施形態のリジェクト装置１の構成を説明する図である。本実施形態のリジェクト装置１は、既存の生産ラインを改造することなく、既存の搬送コンベア２に増設できるよう開発された装置で、図１に図示したように、ブランク３の不良品３ａが排出される排出トレイ１２と、搬送コンベア２上の不良品３ａをピックアップして排出トレイ１２まで搬送するサクションロール１１と、サクションロール１１内のエアを吸引する吸引ブロア１４と、サクションロール１１と吸引ブロア１４間に設置される電磁弁１３と、リジェクト装置１の動作を制御する制御部１０を有する。   FIG. 1 is a diagram for explaining the configuration of a rejection apparatus 1 according to this embodiment. The reject device 1 of the present embodiment is a device developed so that it can be added to an existing conveyor 2 without remodeling an existing production line. As shown in FIG. 1, the defective product 3a of the blank 3 is discharged. Discharge tray 12, suction roll 11 that picks up the defective product 3a on the conveyor 2 and conveys it to the discharge tray 12, suction blower 14 that sucks air in the suction roll 11, suction roll 11 and suction blower 14 includes an electromagnetic valve 13 installed between the control unit 14 and a control unit 10 that controls the operation of the reject device 1.

更に、本実施形態のリジェクト装置１は、搬送コンベア２で搬送されるブランク３の不良を検査する不良検査センサ１５と、排出トレイ１２に排出される不良品３ａを検出する排出検知センサ１６を有する。   Furthermore, the rejection apparatus 1 of the present embodiment includes a defect inspection sensor 15 that inspects a defect of the blank 3 conveyed by the conveyor 2 and a discharge detection sensor 16 that detects a defective product 3a discharged to the discharge tray 12. .

図２は、サクションロール１１の構造を説明する図である。サクションロール１１は、搬送コンベア２と同速で回転する外筒１１０と、外筒１１０が回転可能な程度に微少な間隔をあけて固定の内筒１１１が配置される。   FIG. 2 is a view for explaining the structure of the suction roll 11. The suction roll 11 is provided with an outer cylinder 110 that rotates at the same speed as the conveyor 2 and a fixed inner cylinder 111 that is spaced with a small interval so that the outer cylinder 110 can rotate.

外筒１１０の片側には、外筒１１０を回転させる回転軸１１０ｂが設けられ、図１において、外筒１１０の回転軸１１０ｂは、外筒１１０の周速が搬送コンベア２の速度と同速になるようにモータ１７にて駆動する。内筒１１１の両端には、外筒１１０を支える支軸１１１ｄ、ｅが設けられ、外筒１１０の回転軸１１０ｂとは反対側になる支軸１１１ｄを経由して、吸引ブロア１４と内筒１１１を接続する吸引経路１１１ｃが設けられている。   A rotating shaft 110b that rotates the outer cylinder 110 is provided on one side of the outer cylinder 110. In FIG. 1, the rotating shaft 110b of the outer cylinder 110 has a peripheral speed of the outer cylinder 110 that is the same as the speed of the conveyor 2. It drives with the motor 17 so that it may become. Support shafts 111d and e that support the outer tube 110 are provided at both ends of the inner tube 111, and the suction blower 14 and the inner tube 111 are connected via a support shaft 111d that is opposite to the rotation shaft 110b of the outer tube 110. Is provided.

ブランク３を吸着して搬送できるように、サクションロール１１の外筒１１０の表面には数多くの吸引孔１１０ａが設けられる。サクションロール１１の内筒１１１には、吸引ブロア１４によって負圧にされる負圧室１１１ａが設けられ、内筒１１１の負圧室１１１ａは、内筒１１１に設けられた複数の連通孔１１１ｂで外筒１１０の吸引孔１１０ａと連通している。   A large number of suction holes 110 a are provided on the surface of the outer cylinder 110 of the suction roll 11 so that the blank 3 can be sucked and conveyed. The inner cylinder 111 of the suction roll 11 is provided with a negative pressure chamber 111 a that is made negative by the suction blower 14. The negative pressure chamber 111 a of the inner cylinder 111 is formed by a plurality of communication holes 111 b provided in the inner cylinder 111. The outer cylinder 110 communicates with the suction hole 110a.

吸引ブロア１４は、常時、吸引動作を行っている。リジェクト装置１の制御部１０の指示により電磁弁１３が開くと、吸引ブロア１４によって内筒１１１の負圧室１１１ａ内の空気が吸引経路１１１ｃを介して排気されて、内筒１１１の負圧室１１１ａが負圧にセットされる。また、リジェクト装置１の制御部１０の指示により電磁弁１３が閉じると、内筒１１１の負圧室１１１ａの負圧は解除される。   The suction blower 14 is always performing a suction operation. When the electromagnetic valve 13 is opened by an instruction from the control unit 10 of the reject device 1, the air in the negative pressure chamber 111a of the inner cylinder 111 is exhausted through the suction path 111c by the suction blower 14, and the negative pressure chamber of the inner cylinder 111 is discharged. 111a is set to a negative pressure. Further, when the solenoid valve 13 is closed by an instruction from the control unit 10 of the reject device 1, the negative pressure in the negative pressure chamber 111a of the inner cylinder 111 is released.

内筒１１１の負圧室１１１ａが負圧になると、内筒１１１の負圧室１１１ａと連通孔１１１ｂを介して連通する外筒１１０の吸引孔１１０ａに吸引力が発生し、サクションロール１１にて不良品３ａを搬送することが可能になる。   When the negative pressure chamber 111a of the inner cylinder 111 becomes negative pressure, a suction force is generated in the suction hole 110a of the outer cylinder 110 communicating with the negative pressure chamber 111a of the inner cylinder 111 through the communication hole 111b. The defective product 3a can be transported.

図３は、サクションロール１１の断面を説明する図である。図３は、図２のＡ−Ｂ間の断面で、図３に図示したように、本実施形態において、サクションロール１１の吸引角度は、搬送コンベア２上の不良品３ａを外筒１１０によって吸着し、外筒１１０から吸着解放になった不良品３ａが外筒１１０の回転によって排出トレイ１２に送り出されるように設計される。   FIG. 3 is a view for explaining a cross section of the suction roll 11. FIG. 3 is a cross-sectional view taken along the line A-B in FIG. 2, and as illustrated in FIG. 3, in this embodiment, the suction angle of the suction roll 11 is to suck the defective product 3 a on the transport conveyor 2 by the outer cylinder 110. In addition, the defective product 3 a that is sucked and released from the outer cylinder 110 is designed to be sent to the discharge tray 12 by the rotation of the outer cylinder 110.

搬送コンベア２上の不良品３ａをピックアップするため、吸引角度の始端、すなわち、内筒１１１の負圧室１１１ａの始端は、サクションロール１１と搬送コンベア２の接点近傍になる。また、吸引角度の終端、すなわち、内筒１１１の負圧室１１１ａの終端は、吸着解放になった不良品３ａがサクションロール１１の外筒１１０の回転によって排出トレイ１２に送り出されるように、搬送コンベア２に対する垂直方向から排出トレイ１２側にややずれた角度になる。なお、吸引角度の終端の位置は、ブランク３のサイズや排出トレイ１２の位置によって変更になるため、予め、テストなどにより決めておくとよい。   In order to pick up the defective product 3 a on the transport conveyor 2, the start end of the suction angle, that is, the start end of the negative pressure chamber 111 a of the inner cylinder 111 is in the vicinity of the contact point between the suction roll 11 and the transport conveyor 2. Further, the end of the suction angle, that is, the end of the negative pressure chamber 111a of the inner cylinder 111 is conveyed so that the defective product 3a that has been sucked and released is sent to the discharge tray 12 by the rotation of the outer cylinder 110 of the suction roll 11. The angle is slightly shifted from the direction perpendicular to the conveyor 2 toward the discharge tray 12. Since the end position of the suction angle is changed depending on the size of the blank 3 and the position of the discharge tray 12, it may be determined in advance by a test or the like.

サクションロール１１の外筒１１０に吸引力が働いているとき、搬送コンベア２で搬送された不良品３ａは、先頭から順に負圧室１１１ａの始端でサクションロール１１の外筒１１０に吸着され、外筒１１０に吸着・保持された状態で搬送される。   When a suction force is applied to the outer cylinder 110 of the suction roll 11, the defective product 3a conveyed by the conveyor 2 is adsorbed to the outer cylinder 110 of the suction roll 11 at the start end of the negative pressure chamber 111a in order from the beginning. It is conveyed while being sucked and held by the cylinder 110.

外筒１１０の回転に吸着・保持された不良品３ａは、内筒１１１の負圧室１１１ａの終端を過ぎると外筒１１０から吸着解放され、不良品３ａの先頭から順に、外筒１１０の回転によって排出トレイ１２に送り出される。不良品３ａの後尾が負圧室１１１ａの終端を過ぎると、不良品３ａは、外筒１１０から完全に吸着解放され、排出トレイ１２にリジェクトされる。   The defective product 3a adsorbed / held by the rotation of the outer cylinder 110 is adsorbed and released from the outer cylinder 110 after the end of the negative pressure chamber 111a of the inner cylinder 111, and the rotation of the outer cylinder 110 in order from the top of the defective product 3a. Is sent out to the discharge tray 12. When the rear end of the defective product 3a passes the end of the negative pressure chamber 111a, the defective product 3a is completely sucked and released from the outer cylinder 110 and rejected to the discharge tray 12.

リジェクト装置１の不良検査センサ１５は、サクションローラに絶えず吸引力を与えると、搬送コンベア２で搬送される全てのブランク３がリジェクトされてしまうため、不良品３ａのみをリジェクトできるようにリジェクト装置１に設けられる。   If the defect inspection sensor 15 of the reject device 1 continuously applies a suction force to the suction roller, all the blanks 3 transported by the transport conveyor 2 will be rejected, so that the reject device 1 can reject only the defective product 3a. Is provided.

不良検査センサ１５の具体的な形態は、不良検査センサ１５が検査する不良の内容に依存するが、ＣＣＤカメラを有する画像解析装置を利用するのが一般的である。例えば、ブランク３の抜き不良を検出したいとき、画像解析装置で撮影したブランク３の形状から抜き不良の有無を検査する。また、ブランク３に印字された不良マークを検出したときは、画像解析装置で撮影したブランク３の画像から不良マークを検出する。   The specific form of the defect inspection sensor 15 depends on the content of the defect to be inspected by the defect inspection sensor 15, but an image analysis apparatus having a CCD camera is generally used. For example, when it is desired to detect a defect in the blank 3, the presence or absence of a defect in the blank 3 is inspected from the shape of the blank 3 photographed by the image analysis apparatus. Further, when a defective mark printed on the blank 3 is detected, the defective mark is detected from the image of the blank 3 photographed by the image analysis apparatus.

不良検査センサ１５は自律的にブランク３の不良を検査することも可能であるが、本実施形態では、不良検査センサ１５は制御部１０から検査指示を受けると、搬送コンベア２で搬送されるブランク３の不良を検査し、検査結果をリジェクト装置１の制御部１０へ送信する。   Although the defect inspection sensor 15 can autonomously inspect the defect of the blank 3, in this embodiment, the defect inspection sensor 15 receives the inspection instruction from the control unit 10 and is conveyed by the conveyor 2. 3 is inspected, and the inspection result is transmitted to the control unit 10 of the reject device 1.

リジェクト装置１の排出検知センサ１６は、サクションロール１１によってピックアップした不良品３ａが排出トレイ１２に正常に排出されたことを検知するために設けられるセンサで、排出トレイ１２の手前に配置される。排出検知センサ１６が排出部へ排出される不良品３ａを検出すると、不良品３ａが排出されたことを示す排出検知信号がリジェクト装置１の制御部１０へ送信される。なお、排出検知センサ１６は、排出トレイ１２に排出される不良品３ａの有無を検出できればよいので、排出検知センサ１６は、光電センサ等を利用して実現することができる。   The discharge detection sensor 16 of the reject device 1 is a sensor provided to detect that the defective product 3 a picked up by the suction roll 11 is normally discharged to the discharge tray 12, and is disposed in front of the discharge tray 12. When the discharge detection sensor 16 detects the defective product 3a discharged to the discharge unit, a discharge detection signal indicating that the defective product 3a is discharged is transmitted to the control unit 10 of the reject device 1. Since the discharge detection sensor 16 only needs to detect the presence or absence of the defective product 3a discharged to the discharge tray 12, the discharge detection sensor 16 can be realized using a photoelectric sensor or the like.

ここから、リジェクト装置１の制御部１０について説明する。リジェクト装置１の制御部１０は、ＰＬＣ（Programmable Logic Controller）やＰＣ(Personal Computer)などにより実現される機能で、本実施形態において、搬送コンベア２に設けられたエンコーダ（図示していない）の信号によりタイミングを図り、不良品３ａをリジェクトする動作を制御する。   From here, the control part 10 of the rejection apparatus 1 is demonstrated. The controller 10 of the reject device 1 is a function realized by a PLC (Programmable Logic Controller), a PC (Personal Computer), or the like. In this embodiment, a signal from an encoder (not shown) provided on the conveyor 2 To control the operation of rejecting the defective product 3a.

図４は、不良品３ａをリジェクトする動作を説明する第１図、図５は、不良品３ａをリジェクトする動作を説明する第２図、図６は、不良品３ａをリジェクトする動作を説明する第３図、図７は、不良品３ａをリジェクトする動作を説明する第４図、図８は、不良品３ａをリジェクトする動作を説明する第５図、図９は、不良品３ａをリジェクトする動作を説明する第６図、図１０は、不良品３ａをリジェクトする動作を説明する第７図である。   FIG. 4 shows an operation for rejecting a defective product 3a. FIG. 5 shows an operation for rejecting a defective product 3a. FIG. 6 shows an operation for rejecting a defective product 3a. FIGS. 3 and 7 illustrate the operation of rejecting the defective product 3a. FIGS. 4 and 8 illustrate the operation of rejecting the defective product 3a. FIGS. 5 and 9 reject the defective product 3a. FIGS. 6 and 10 for explaining the operation are FIGS. 7 and 7 for explaining the operation for rejecting the defective product 3a.

図４に図示したように、サクションロール１１により不良品３ａをピックアップしないとき、電磁弁１３は閉状態でサクションロール１１の外筒１１０に吸引力は働いていない。リジェクト装置１の制御部１０は、搬送コンベア２によって搬送されるブランク３の不良を検査するタイミングになると、不良検査センサ１５に検査指示を送信し、不良検査センサ１５は、検査エリア内にあるブランク３の不良を検査して、検査結果を制御部１０へ送信する。   As shown in FIG. 4, when the defective product 3 a is not picked up by the suction roll 11, the solenoid valve 13 is in a closed state and no suction force is applied to the outer cylinder 110 of the suction roll 11. The control unit 10 of the reject device 1 transmits an inspection instruction to the defect inspection sensor 15 when it is time to inspect the defect of the blank 3 conveyed by the conveyance conveyor 2, and the defect inspection sensor 15 is in the blank in the inspection area. 3 is inspected, and the inspection result is transmitted to the control unit 10.

図５に図示したように、リジェクト装置１の制御部１０は、不良検査センサ１５から受信した検査結果により不良品３ａであることが示されると、不良検査センサ１５が検査した不良品３ａが、サクションロール１１の吸引角度の始端にくるタイミングに合わせて電磁弁１３を開き、サクションロール１１の負圧室１１１ａ内を負圧にセットして、外筒１１０の吸引孔１１０ａに吸引力を発生させる。   As shown in FIG. 5, when the control unit 10 of the rejection apparatus 1 indicates that the defective product 3 a is the result of the inspection received from the defective inspection sensor 15, the defective product 3 a inspected by the defective inspection sensor 15 is The solenoid valve 13 is opened in accordance with the timing when the suction angle of the suction roll 11 comes to the beginning, the negative pressure chamber 111a of the suction roll 11 is set to a negative pressure, and a suction force is generated in the suction hole 110a of the outer cylinder 110. .

図６に図示しているように、サクションロール１１の外筒１１０の吸引孔１１０ａに吸引力が発生すると、不良品３ａは、先頭から順に外筒１１０の吸引孔１１０ａに吸着・保持されて、回転する外筒１１０と共に上方向に搬送される。また、図７に図示しているように、サクションロール１１の吸引角度の終端にくると外筒１１０から吸着解放され、不良品３ａは、先頭から順に外筒１１０の回転によって排出トレイ１２に送り出される。   As shown in FIG. 6, when a suction force is generated in the suction hole 110a of the outer cylinder 110 of the suction roll 11, the defective product 3a is sucked and held in the suction hole 110a of the outer cylinder 110 in order from the top. It is transported upward together with the rotating outer cylinder 110. Further, as shown in FIG. 7, when the suction angle of the suction roll 11 comes to the end, the suction is released from the outer cylinder 110, and the defective product 3a is sent to the discharge tray 12 by the rotation of the outer cylinder 110 in order from the top. It is.

図８に図示しているように、リジェクト装置１の制御部１０は、電磁弁１３を開いた後、不良品３ａの先頭が排出検知センサ１６のセンシング範囲にくるタイミングで排出検知センサ１６を作動させ、一定時間内に排出検知信号を受信しなければ、サクションロール１１と搬送コンベア２を停止させてリジェクト動作を中断する。   As shown in FIG. 8, the control unit 10 of the reject device 1 operates the discharge detection sensor 16 at the timing when the top of the defective product 3 a comes within the sensing range of the discharge detection sensor 16 after opening the electromagnetic valve 13. If the discharge detection signal is not received within a predetermined time, the suction roll 11 and the conveyor 2 are stopped and the reject operation is interrupted.

排出検知センサ１６を作動させてから一定時間内に排出検知信号を受信した場合、リジェクト装置１の制御部１０は、サクションロール１１と搬送コンベア２を停止させることなくリジェクト動作を続行し、図９に図示しているように、不良品３ａの後尾が負圧室１１１ａを過ぎるタイミングで、リジェクト装置１の制御部１０は、電磁弁１３を閉状態にしてサクションロール１１内の負圧を解除する。   When the discharge detection signal is received within a predetermined time after the discharge detection sensor 16 is activated, the control unit 10 of the reject device 1 continues the reject operation without stopping the suction roll 11 and the transport conveyor 2. As shown in the figure, at the timing when the rear end of the defective product 3a passes the negative pressure chamber 111a, the control unit 10 of the reject device 1 closes the electromagnetic valve 13 to release the negative pressure in the suction roll 11. .

電磁弁１３を閉状態にすることで、サクションロール１１内の負圧は解除されるが、サクションロール１１の外筒１１０は回転し続けるので、図１０に図示しているように、不良品３ａの後尾は、外筒１１０の回転によって排出トレイ１２に送り出され、不良品３ａが排出トレイ１２にリジェクトされる。   By closing the solenoid valve 13, the negative pressure in the suction roll 11 is released, but the outer cylinder 110 of the suction roll 11 continues to rotate, so that the defective product 3a is shown in FIG. The tail is sent to the discharge tray 12 by the rotation of the outer cylinder 110, and the defective product 3a is rejected to the discharge tray 12.

このように、本実施形態のリジェクト装置１によれば、サクションロール１１により上方から不良品３ａをピックアップするため、サクションロール１１を追加できるスペースがあれば、既存の搬送コンベア２を改造することなくリジェクト装置１を増設できる   As described above, according to the reject device 1 of the present embodiment, the defective product 3a is picked up from above by the suction roll 11, so that if there is a space where the suction roll 11 can be added, the existing conveyor 2 is not modified. Reject device 1 can be added

１ リジェクト装置
１０ 制御部
１１ サクションロール
１１０ 外筒
１１０ａ 吸引孔
１１１ 内筒
１１１ａ 負圧室
１２ 排出トレイ
１３ 電磁弁
１４ 吸引ブロア
１５ 不良検査センサ
１６ 排出検知センサ
２ 搬送コンベア
３ ブランク
３ａ 不良品
DESCRIPTION OF SYMBOLS 1 Reject apparatus 10 Control part 11 Suction roll 110 Outer cylinder 110a Suction hole 111 Inner cylinder 111a Negative pressure chamber 12 Discharge tray 13 Solenoid valve 14 Suction blower 15 Defect inspection sensor 16 Ejection detection sensor 2 Conveyor 3 Blank 3a Defective product

Claims (2)

不良品が排出される排出トレイと、搬送コンベアで搬送されているブランクの不良を検査する不良検査センサと、前記不良検査センサが検出した不良品を搬送コンベアからピックアップして前記排出トレイまで搬送するサクションローラと、不良品をリジェクトする動作を制御する制御部を備え、
前記サクションローラは、搬送コンベアと同速で回転し、表面に複数の吸引孔が設けられた外筒と、前記外筒の吸引孔と連通する負圧室が設けられた内筒を有し、前記負圧室は、前記サクションローラの吸引角度が、前記搬送コンベア上の不良品を前記外筒によって吸着し、前記外筒から吸着解放になった不良品が前記外筒の回転によって前記排出トレイに送り出されるように形成され、
前記制御部は、前記不良検査センサが不良品を検出すると、前記不良検査センサが検出した不良品の先頭が前記サクションロールの吸引角度の始端に到達するタイミングで前記内筒の負圧室を負圧にセットし、不良品の後尾が前記サクションロールの吸引角度の終端にくるタイミングで前記内筒の負圧室の負圧を解除する動作を行う、
ことを特徴とするリジェクト装置。 A discharge tray for discharging defective products, a defect inspection sensor for inspecting defects in blanks conveyed by a conveyor, and picking up defective products detected by the defect inspection sensor from the conveyor and transporting them to the discharge tray It has a suction roller and a controller that controls the operation to reject defective products.
The suction roller has an outer cylinder that rotates at the same speed as the conveyor and has a plurality of suction holes on the surface, and an inner cylinder that has a negative pressure chamber that communicates with the suction holes of the outer cylinder. In the negative pressure chamber, the suction angle of the suction roller attracts the defective product on the conveyor by the outer cylinder, and the defective product released from the outer cylinder by suction releases the discharge tray by the rotation of the outer cylinder. Formed to be sent to
When the defect inspection sensor detects a defective product, the control unit depresses the negative pressure chamber of the inner cylinder at a timing at which the top of the defective product detected by the defect inspection sensor reaches the start end of the suction angle of the suction roll. Set the pressure, and perform the operation of releasing the negative pressure of the negative pressure chamber of the inner cylinder at the timing when the rear end of the defective product comes to the end of the suction angle of the suction roll,
A reject device characterized by that. 前記排出トレイに排出される不良品を検知する排出検知センサを備え、前記制御部は、前記不良検査センサが不良品を検出した後、前記サクションロールによって前記排出トレイに排出される不良品を前記排出検知センサが検知しない場合、前記搬送コンベアと前記外筒を停止させる処理を行うことを特徴とする、請求項１に記載したリジェクト装置。
A discharge detection sensor for detecting a defective product discharged to the discharge tray, and the control unit detects the defective product discharged to the discharge tray by the suction roll after the defective inspection sensor detects the defective product. The reject device according to claim 1, wherein when the discharge detection sensor does not detect, a process of stopping the conveyor and the outer cylinder is performed.
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* Cited by examiner, † Cited by third party
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JP2017001257A (en) * 2015-06-09 2017-01-05 三起機械株式会社 Sheet cut machine with inspection apparatus
ES2738579A1 (en) * 2018-06-08 2020-01-23 Jose Borrell Sa Rejection selection device (Machine-translation by Google Translate, not legally binding)

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JP2006163838A (en) * 2004-12-07 2006-06-22 Sato Corp Device and method for inspecting rfid label
JP2008207916A (en) * 2007-02-26 2008-09-11 Dainippon Printing Co Ltd Method and device for detecting foreign matter adhered to bag article and detection and removal device
JP2012116060A (en) * 2010-11-30 2012-06-21 Brother Industries Ltd Image forming apparatus

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Publication number Priority date Publication date Assignee Title
JPS59118657A (en) * 1982-12-27 1984-07-09 Takashi Mori Paper feed device with unsatisfactory printed material rejection unit
JP2000203547A (en) * 1999-01-14 2000-07-25 Sansei Seiki Kk Single drum type heat-sensitive paste activation labeler
JP2006163838A (en) * 2004-12-07 2006-06-22 Sato Corp Device and method for inspecting rfid label
JP2008207916A (en) * 2007-02-26 2008-09-11 Dainippon Printing Co Ltd Method and device for detecting foreign matter adhered to bag article and detection and removal device
JP2012116060A (en) * 2010-11-30 2012-06-21 Brother Industries Ltd Image forming apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017001257A (en) * 2015-06-09 2017-01-05 三起機械株式会社 Sheet cut machine with inspection apparatus
ES2738579A1 (en) * 2018-06-08 2020-01-23 Jose Borrell Sa Rejection selection device (Machine-translation by Google Translate, not legally binding)

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