JPH01187137A - Paper feeder - Google Patents
Paper feederInfo
- Publication number
- JPH01187137A JPH01187137A JP1070188A JP1070188A JPH01187137A JP H01187137 A JPH01187137 A JP H01187137A JP 1070188 A JP1070188 A JP 1070188A JP 1070188 A JP1070188 A JP 1070188A JP H01187137 A JPH01187137 A JP H01187137A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- paper sheet
- sheet
- paper
- blow
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000007664 blowing Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 238000001179 sorption measurement Methods 0.000 description 10
- 238000000926 separation method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005339 levitation Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
Landscapes
- Sheets, Magazines, And Separation Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は給紙装置に係り１％に枚葉紙を１枚ずつ確実に
分離給紙する給紙装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a paper feeding device, and relates to a paper feeding device that reliably separates and feeds sheets one by one per 1%.
従来の装置は、特開昭６２−１１１８４５号に記載のよ
うに１枚葉紙の吸引を検出する検出器が配設されていな
かった。このため、吸引不良によって空送りや搬送路へ
の衝突が発生していた。The conventional device was not provided with a detector for detecting the suction of a sheet of paper as described in Japanese Patent Application Laid-open No. 111845/1984. For this reason, poor suction causes empty feeding and collisions with the conveyance path.
上記従来技術は、真空分離方式による分離給紙時に１枚
葉紙が吸引部に吸着された事を検出していない為、吸引
不良で空送りや搬送路へ衝突する等の問題があった。The above-mentioned conventional technology does not detect that a single sheet of paper is attracted to the suction unit during paper separation and feeding using the vacuum separation method, so there are problems such as empty feeding or collision with the conveyance path due to poor suction.
本発明の目的は、確実に枚葉紙が分離給紙出来る給紙装
置を提供することにある。An object of the present invention is to provide a paper feeding device that can reliably separate and feed sheets.
上記目的は１枚葉紙の分離給紙時、検出器によって枚葉
紙が吸引部に吸着された事を検出して。The above purpose is to use a detector to detect that a sheet of paper is attracted to the suction unit when separating and feeding a single sheet of paper.
その信号を元に分離給紙を行う事により達成される。This is achieved by separating and feeding the sheets based on the signal.
枚葉紙が吸引された事を検出する検出器を吸引部に配設
する。分離給紙の際、吹き出し孔に空気流によって浮揚
した枚葉紙のうち最上位の枚葉紙は吸引部に吸着する。A detector for detecting the suction of a sheet is disposed in the suction section. During paper separation and feeding, the uppermost sheet of the sheets floated by the air flow through the blow-off holes is attracted to the suction section.
その時、検出器で検出しその検出信号に１９分分離紙を
開始する。それＫよって１枚葉紙は吸引部に吸着してい
るので空送シする事なく確実に分離給紙する事ができる
。At that time, the detector detects the signal and starts separating the paper for 19 minutes. Therefore, since each sheet of paper is attracted to the suction section, it is possible to reliably separate and feed the sheets without empty feeding.
以下１本発明の一実施例を図面によシ説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図及び第２図は本発明の給紙装置の構成を示し、第
３図（ａ）（ｂ）は吸着分離状態を示す。吸着ベルトｌ
、真空チャンバ室２．吹き出しロ３．プロア２４．モー
タ２６からなる給紙部１枚秦紙Ａの重送を防止するフィ
ードローラ４ｃ、ゲートローラ４ｂ、ゲートローラ４ｂ
押付部４ａからなる重送防止部４１枚葉紙Ａを載置する
載置台５．案内軸６．モータ７からなる駆動部、給紙部
及び駆動部を制御する制御装置８ｔ−主要構成要素とす
る。1 and 2 show the structure of the paper feeding device of the present invention, and FIGS. 3(a) and 3(b) show the state of adsorption and separation. Suction belt l
, vacuum chamber 2. Speech bubble 3. Proa 24. A feed roller 4c, a gate roller 4b, and a gate roller 4b that prevent double feeding of one sheet of paper A.
Double feeding prevention section 41 consisting of a pressing section 4a A mounting table 5 on which sheets A are placed. Guide shaft 6. A control device 8t that controls the drive unit including the motor 7, the paper feed unit, and the drive unit is the main component.
次に枚葉紙Ａの分離給紙の動作を説明する。載置台５に
セットされた枚葉紙Ａｔｉ、外部指令でモータ７により
案内軸６に沿って上昇を始める。上昇した枚葉紙Ａは位
置検出器（図示せず）で分離給紙する為の最適高さＨが
検出される。その検出信号により制御装置８ｔ−介して
重送防止部４の押付部４ａとブロア２４の回転を開始す
る。その回転により、第３図（ａ）（ｂ）Ｋ示すように
プロア２４の排出管３ａを軸て吹き出し孔３から♀気が
吹き出される。その空気流で枚葉紙Ａの前面がさばかれ
。Next, the operation of separating and feeding sheets A will be explained. The sheet Ati set on the mounting table 5 starts to rise along the guide shaft 6 by the motor 7 in response to an external command. A position detector (not shown) detects the optimum height H for separating and feeding the raised sheet A. In response to the detection signal, the pressing section 4a of the double feed prevention section 4 and the blower 24 start rotating via the control device 8t. Due to this rotation, male air is blown out from the blowing hole 3 around the exhaust pipe 3a of the proar 24, as shown in FIGS. 3(a), 3(b), and K. The airflow spreads the front side of sheet A.
上部へ浮揚する。又、プロア２４の回転で真空チャンバ
室２は負圧となり、その周フを回転する全周に小孔があ
る吸着ベルトｌに吹き出し孔３でさばかれた最上位の枚
葉紙Ａは吸着される。このようＫして、吸着された枚葉
紙Ａは、モータ２６の駆動で回転した吸着ベルト１によ
り適当な押付力による分離抵抗が付与された重送防止部
４を経て。Levitate to the top. Further, the vacuum chamber 2 becomes a negative pressure due to the rotation of the proar 24, and the uppermost sheet A, which has been sorted by the blow-off holes 3, is sucked by the suction belt l, which rotates around its circumference and has small holes all over its circumference. Ru. The sheets A thus sucked pass through the double-feed prevention section 4 where separation resistance is applied by an appropriate pressing force by the suction belt 1 rotated by the drive of the motor 26.
下流の搬送路９へ受は渡される。ここで、吸着ベルト１
は搬送路９の直前に配設したセンｔ１３で枚葉紙Ａの通
過を検知してモータ２６を停止する間欠駆動としている
。しかし、給紙装置２０で分離給紙する枚葉紙の種類は
たくさんあり１紙の厚み、透気度、平滑度、剛性や重さ
等の特性が大きく異なる為１枚葉紙人の浮揚の度合や吸
着ベルト１への吸着時間が変化する。今までの給紙装置
は。The receiver is passed to the downstream conveyance path 9. Here, suction belt 1
The intermittent drive is such that the passage of the sheet A is detected by the center 13 disposed immediately before the conveyance path 9 and the motor 26 is stopped. However, there are many types of sheets that are separated and fed by the paper feeder 20, and the characteristics such as thickness, air permeability, smoothness, rigidity, and weight of each sheet differ greatly, so the levitation of a single sheet of paper is The degree of adsorption and the adsorption time to the adsorption belt 1 change. What is the current paper feed device?
枚葉紙Ａが吸着ベル）ＩＫ吸着された事を検出していな
い為、吸引不良による空送シや、搬送路９で滞留が発生
していた。そこで、モータ２６の駆動前に吸着ベルト１
への枚葉紙Ａの吸着を検出した後モータ２６を駆動する
。さらに枚葉紙吸引の検出時間を監視してプロア２４の
回転数を制御する。すなわち、第１図に示すように真空
チャンバ室２の横に変位計１１を配設する。ここで、変
位計１１として例えば反射式の光学センナを用い第３図
φ）に示すように枚葉紙が吸引された時に検知するよう
に光学センサを調整する。又、第４図に示す制御装置８
は記憶器８１及び制御指令装置８２で構成し、記憶器８
１には予め分離給紙枚数Ｎ及び検出時間を記憶しておく
。Since it was not detected that the sheet A was suctioned by the suction bell (IK), empty feeding due to poor suction and stagnation in the conveyance path 9 occurred. Therefore, before driving the motor 26, the suction belt 1
The motor 26 is driven after detecting the adsorption of the sheet A to the paper sheet A. Furthermore, the number of rotations of the prower 24 is controlled by monitoring the detection time of sheet suction. That is, as shown in FIG. 1, a displacement gauge 11 is placed next to the vacuum chamber 2. Here, a reflective optical sensor, for example, is used as the displacement meter 11, and the optical sensor is adjusted so as to detect when a sheet is sucked, as shown in FIG. 3 φ). Moreover, the control device 8 shown in FIG.
is composed of a memory 81 and a control command device 82, and the memory 8
1 stores in advance the number N of separated and fed sheets and the detection time.
その動作を第４図及び第５図を用いて説明する。The operation will be explained using FIGS. 4 and 5.
外部信号によって制御指令装置８２から信号を発生させ
ブロア２４を駆動して、真空チャンバ室２を負圧とし吹
き出し孔３からは空気を吹き出す。The control command device 82 generates a signal in response to an external signal to drive the blower 24, thereby making the vacuum chamber 2 a negative pressure and blowing out air from the blowing hole 3.
それによって、モータ７で上昇した枚葉紙入は浮揚し吸
着ベルト１に吸着される。その時、真空チャンバ室２の
横に配設した変位計１１が枚葉紙Ａの吸着を検出する。As a result, the sheet of paper raised by the motor 7 floats and is attracted to the suction belt 1. At this time, the displacement meter 11 placed next to the vacuum chamber 2 detects the suction of the sheet A.
ここで１枚葉紙人の吸引時間が予め記憶器８１に記憶し
た検出時間を過ぎた時には、制御指令装置８２に工りブ
ロア２４の回転数を増加させ、真空チャンバ室２の圧力
及び吹き出し孔３からの風量を増加させて１枚葉紙人の
浮揚量を大きくする。そして２枚葉紙人の吸引の検出を
チエツクする。その後、モータ２６を駆動して吸着ベル
）ｌを回転させ、吸着ベルト１で搬送された枚葉紙Ａを
搬送路９へ受は渡す。ここで、枚葉紙Ａの通過をセンサ
１３で検出しモータ２６を停止させる。そして、センサ
１３の検出信号をもとに制御装置８で分離枚数を演算し
て予めセットした枚数と一致するまで前記動作を繰り返
す。Here, when the suction time for one sheet exceeds the detection time stored in advance in the memory 81, the control command device 82 is made to increase the rotation speed of the mechanical blower 24, and the pressure in the vacuum chamber 2 is increased. By increasing the air volume from step 3, the amount of levitation of a single sheet of paper is increased. Then check the detection of two-sheet person suction. Thereafter, the motor 26 is driven to rotate the suction bell 1, and the sheet A conveyed by the suction belt 1 is transferred to the conveyance path 9. Here, the sensor 13 detects the passage of the sheet A and the motor 26 is stopped. Then, the control device 8 calculates the number of sheets to be separated based on the detection signal of the sensor 13, and repeats the above operation until the number matches the preset number.
本実施例によれば、変位計１１で枚葉紙Ａの吸着を検出
してからモータ２６ｔ−駆動するので、吸着ベルト１で
確実に吸着搬送するので空送シの無い信頼性の高い給紙
装置となる。According to this embodiment, the displacement meter 11 detects the suction of the sheet A and then the motor 26t is driven, so the suction belt 1 reliably suctions and conveys the sheet, resulting in highly reliable sheet feeding without empty feeding. It becomes a device.
枚葉紙Ａの検出は、第２図に示す圧力計を用い吸着時の
真空チャンバ室２の圧力変化を検出して行う。すなわち
、吸着によるチャンバ室２内の圧力上昇によって一定レ
ベル以上で吸着の有無を判定するようにしても同様の効
果を得られることはいうまでも々い。The sheet A is detected by using a pressure gauge shown in FIG. 2 to detect the pressure change in the vacuum chamber 2 during adsorption. That is, it goes without saying that the same effect can be obtained even if the presence or absence of adsorption is determined based on the pressure increase in the chamber 2 due to adsorption at a certain level or higher.
本発明によれば１分離給紙の際１枚葉紙の吸着を検出し
て吸着搬送するので、空送りの無い安定した分離給紙を
行うことができる。According to the present invention, since the suction of a single sheet is detected and conveyed by suction during single-separation feeding, stable separation-feeding without idle feeding can be performed.
第１図は本発明の給紙装置の側面図、第２図は給紙装置
の斜視図、第３図は変位計による枚葉紙吸着の検知を説
明する図、第４図は制御装置の構成を示す図、第５図は
分離給紙の動作を説明するフローチャート図である。
１・・・吸着ベルト、２・・・真空チャンバ室、３・・
・吹き出し口、４・・・重送防止部、５・・・載置台、
７・・・モータ、８・・・制御装置、９・・・搬送路、
１１・・・変位計。
１２・・・圧力計、１３・・・センサ、２０・・・給紙
装置。Fig. 1 is a side view of the paper feeding device of the present invention, Fig. 2 is a perspective view of the paper feeding device, Fig. 3 is a diagram explaining detection of sheet adsorption by a displacement meter, and Fig. 4 is a diagram of the control device. FIG. 5, which is a diagram showing the configuration, is a flowchart diagram illustrating the operation of separating and feeding sheets. 1... Adsorption belt, 2... Vacuum chamber, 3...
・Air outlet, 4...Double feeding prevention part, 5...Placement table,
7... Motor, 8... Control device, 9... Conveyance path,
11...Displacement meter. 12...Pressure gauge, 13...Sensor, 20...Paper feeding device.
Claims (1)
紙を吸引する吸引手段と吸引手段により吸引された枚葉
紙を搬送する搬送手段と、前記最上位の枚葉紙を前記吸
引手段により吸引可能な位置まで浮揚させる吹き出し孔
を有する給紙装置において、最上位の枚葉紙が吸引手段
に吸引された事を検出する検出手段を設け、枚葉紙の吸
引が予め設定した時間に前記検出手段で検出されなかつ
た際、吸引手段の吸引力及び吹き出し孔からの風量を増
大させ、検出手段からの検出後搬送手段を駆動して、吸
引搬送することを特徴とする給紙装置。1. A suction means for suctioning the uppermost sheet of the sheets stacked on the mounting table, a conveying means for conveying the sheet sucked by the suction means, and the uppermost sheet In a paper feeding device having a blowing hole for floating a sheet of paper to a position where it can be sucked by the suction means, a detection means for detecting that the uppermost sheet is sucked by the suction means is provided, and the suction of the sheet is detected in advance. When it is not detected by the detection means at a set time, the suction force of the suction means and the air volume from the blowing hole are increased, and after the detection from the detection means, the conveyance means is driven to carry out suction conveyance. Paper feed device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1070188A JPH01187137A (en) | 1988-01-22 | 1988-01-22 | Paper feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1070188A JPH01187137A (en) | 1988-01-22 | 1988-01-22 | Paper feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01187137A true JPH01187137A (en) | 1989-07-26 |
Family
ID=11757595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1070188A Pending JPH01187137A (en) | 1988-01-22 | 1988-01-22 | Paper feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01187137A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03172245A (en) * | 1989-11-30 | 1991-07-25 | Hitachi Ltd | Paper feeder |
| JPH05270676A (en) * | 1992-03-25 | 1993-10-19 | Sharp Corp | Paper feeding control device |
| US5649697A (en) * | 1994-07-19 | 1997-07-22 | Sharp Kabushiki Kaisha | Sheet feeding apparatus |
| US6123330A (en) * | 1995-12-02 | 2000-09-26 | Siemens Aktiengesellschaft | Method of feeding flat mail for separation by suction of material input |
| US6186491B1 (en) * | 1998-10-02 | 2001-02-13 | Nec Corporation | Sheet feeding apparatus |
| JP2001151361A (en) * | 1999-10-12 | 2001-06-05 | Xerox Corp | Sheet feeder |
| WO2008136167A1 (en) * | 2007-04-26 | 2008-11-13 | Kabushiki Kaisha Toshiba | Paper sheet taking-out device |
| JP2009001408A (en) * | 2007-06-25 | 2009-01-08 | Canon Inc | Sheet feeder and image forming device |
| JP2009143708A (en) * | 2007-12-17 | 2009-07-02 | Konica Minolta Business Technologies Inc | Paper feeder and image forming device |
| JP2010120756A (en) * | 2008-11-20 | 2010-06-03 | Konica Minolta Business Technologies Inc | Sheet feeder and image forming device |
| JP2019052006A (en) * | 2017-09-14 | 2019-04-04 | コニカミノルタ株式会社 | Paper feeder and image forming system |
| JP2021011342A (en) * | 2019-07-05 | 2021-02-04 | コニカミノルタ株式会社 | Paper feeding device, image forming device and paper feeding method |
| JP2022062122A (en) * | 2017-09-08 | 2022-04-19 | コニカミノルタ株式会社 | Image forming apparatus, image forming method, and control program |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6052429A (en) * | 1983-08-31 | 1985-03-25 | Fuji Xerox Co Ltd | Paper feeding apparatus |
| JPS6056739A (en) * | 1983-09-06 | 1985-04-02 | Fuji Xerox Co Ltd | Sheet feeder |
-
1988
- 1988-01-22 JP JP1070188A patent/JPH01187137A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6052429A (en) * | 1983-08-31 | 1985-03-25 | Fuji Xerox Co Ltd | Paper feeding apparatus |
| JPS6056739A (en) * | 1983-09-06 | 1985-04-02 | Fuji Xerox Co Ltd | Sheet feeder |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03172245A (en) * | 1989-11-30 | 1991-07-25 | Hitachi Ltd | Paper feeder |
| JPH05270676A (en) * | 1992-03-25 | 1993-10-19 | Sharp Corp | Paper feeding control device |
| US5649697A (en) * | 1994-07-19 | 1997-07-22 | Sharp Kabushiki Kaisha | Sheet feeding apparatus |
| US6123330A (en) * | 1995-12-02 | 2000-09-26 | Siemens Aktiengesellschaft | Method of feeding flat mail for separation by suction of material input |
| US6186491B1 (en) * | 1998-10-02 | 2001-02-13 | Nec Corporation | Sheet feeding apparatus |
| JP2001151361A (en) * | 1999-10-12 | 2001-06-05 | Xerox Corp | Sheet feeder |
| WO2008136167A1 (en) * | 2007-04-26 | 2008-11-13 | Kabushiki Kaisha Toshiba | Paper sheet taking-out device |
| JP2009001408A (en) * | 2007-06-25 | 2009-01-08 | Canon Inc | Sheet feeder and image forming device |
| JP2009143708A (en) * | 2007-12-17 | 2009-07-02 | Konica Minolta Business Technologies Inc | Paper feeder and image forming device |
| JP2010120756A (en) * | 2008-11-20 | 2010-06-03 | Konica Minolta Business Technologies Inc | Sheet feeder and image forming device |
| JP2022062122A (en) * | 2017-09-08 | 2022-04-19 | コニカミノルタ株式会社 | Image forming apparatus, image forming method, and control program |
| JP2019052006A (en) * | 2017-09-14 | 2019-04-04 | コニカミノルタ株式会社 | Paper feeder and image forming system |
| JP2021011342A (en) * | 2019-07-05 | 2021-02-04 | コニカミノルタ株式会社 | Paper feeding device, image forming device and paper feeding method |
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