JPH0620978B2 - Paper folding device - Google Patents
Paper folding deviceInfo
- Publication number
- JPH0620978B2 JPH0620978B2 JP8759585A JP8759585A JPH0620978B2 JP H0620978 B2 JPH0620978 B2 JP H0620978B2 JP 8759585 A JP8759585 A JP 8759585A JP 8759585 A JP8759585 A JP 8759585A JP H0620978 B2 JPH0620978 B2 JP H0620978B2
- Authority
- JP
- Japan
- Prior art keywords
- folding
- sheet
- roll
- paper
- nip portion
- 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 - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/18—Oscillating or reciprocating blade folders
Landscapes
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、用紙を折り畳む用紙折り装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet folding device that folds a sheet.
従来の技術 特開昭57-62162号公報に示すように、複数の折りロール
を圧接し、そのニツプ部に用紙を通過することで２つ折
りしたり、Ｚ折りしたりする装置が知られている。2. Description of the Related Art As shown in Japanese Unexamined Patent Publication No. 57-62162, there is known a device that folds a plurality of folding rolls under pressure and passes a sheet through the nip portion to fold it in two or fold it. .
発明が解決しようとする問題点 折りロールの回転速度は一定であると共に、短時間に多
数枚の用紙を折るために折りロールの回転速度を速くし
ている。Problems to be Solved by the Invention The rotation speed of the folding roll is constant, and the rotation speed of the folding roll is increased in order to fold a large number of sheets in a short time.
このために、用紙の折られる部分が折りロールのニツプ
部を短時間に通過するから、用紙の折り程度は不十分で
折られた用紙の厚さが大きくなり、手作業で増し折りす
る必要がある。For this reason, since the folded portion of the sheet passes through the nip portion of the folding roll in a short time, the degree of folding of the sheet is insufficient, the thickness of the folded sheet becomes large, and it is necessary to manually perform additional folding. is there.
なお、折りロールの回転速度を遅くして用紙の折られる
部分が折りロールのニツプ部を長い時間をかけて通過す
るようにすれば用紙の折り程度を十分にできるが、その
反面、用紙折り時間が長くなつて生産性が悪くなる。It should be noted that if the rotation speed of the folding roll is slowed so that the folded portion of the paper passes through the nip portion of the folding roll over a long period of time, it is possible to sufficiently fold the paper. Will become longer and productivity will deteriorate.
問題点を解決するための手段及び作用 折りロールを高低２段階の回転速度で切換え駆動する手
段と、用紙の折り部分がニツプ部に入ったことを検出す
る第１の検出手段と、出たことを検出する第２の検出手
段と、第１の検出手段の検出信号によつて折りロールを
低速回転に切換え、第２の検出手段の検出信号で折りロ
ールを高速回転に切換る手段とを設けて、用紙の折られ
る部分がニツプ部を通過する時は低速回転とし、それ以
外の時には高速回転するようにしたものである。Means and Actions for Solving the Problems Means for switching and driving the folding rolls at high and low rotational speeds, first detecting means for detecting that the folded portion of the paper has entered the nip portion, and And a means for switching the folding roll to a low speed rotation according to the detection signal of the first detection means and a means for switching the folding roll to a high speed rotation according to the detection signal of the second detection means. When the folded portion of the paper passes through the nip portion, it is rotated at low speed, and at other times, it is rotated at high speed.
実施例 圧接した一対の折りロール１，１のニツプ部２の入口側
には用紙搬送路３が設けられ、この用紙搬送路３には送
りロール４と用紙センサ、例えばフオトセンサ５とが設
けられていると共に、ニツプ部２より先方側には用紙ス
トツパー６が設けてある。Example A sheet conveying path 3 is provided on the inlet side of the nip portion 2 of a pair of pressure rolls 1, 1 that are in pressure contact with each other, and a feeding roller 4 and a sheet sensor, for example, a photo sensor 5 are provided in the sheet conveying path 3. In addition, a paper stopper 6 is provided on the front side of the nip portion 2.
ニツプ部２と対向して折り込みガイド７が第１ソレノイ
ド８で移動自在に設けてあると共に、一方の折りロール
１と対向して折り込みピンチロール９が第２ソレノイド
１０で移動自在に設けてある。A folding guide 7 is provided movably by a first solenoid 8 so as to face the nip portion 2, and a folding pinch roll 9 is provided movably by a second solenoid 10 so as to face one folding roll 1.
モータ１１の出力軸１２には第１・第２スプロケツト１
３，１４が固着され、第１スプロケット１３と第３スプ
ロケツト１５と大径スプロケツト１６とに亘つて第１チ
エーン１７が巻掛けてあると共に、第２スプロケツト１
４と小径スプロケツト１８とに亘つて第２チエーン１９
が巻掛けられ、第３スプロケツト１５は送りロール４の
軸４ａに固着してある。The first and second sprockets 1 are attached to the output shaft 12 of the motor 11.
3, 14 are fixed, the first chain 17 is wound around the first sprocket 13, the third sprocket 15, and the large diameter sprocket 16, and the second sprocket 1 is also attached.
4 and the small diameter sprocket 18 and the second chain 19
And the third sprocket 15 is fixed to the shaft 4a of the feed roll 4.
前記大径スプロケツト１６は折りロール１の軸２０に一
方向クラツチ２１を介して装着され、小径スプロケツト
１８は軸２０に電磁クラツチ２２を介して装着してあ
る。The large diameter sprocket 16 is attached to the shaft 20 of the folding roll 1 via a one-way clutch 21, and the small diameter sprocket 18 is attached to the shaft 20 via an electromagnetic clutch 22.
次に作動を説明する。Next, the operation will be described.
第１・第２ソレノイド８，１０をOFF（非励磁）として
折り込みガイド７と折り込みピンチロール９を実線位置
とし、この状態でモータ１１を駆動して送りロール４に
よつて用紙を用紙搬送路３に送り込む。The first and second solenoids 8 and 10 are turned off (non-excited) to set the folding guide 7 and the folding pinch roll 9 to the solid line position. In this state, the motor 11 is driven to feed the paper by the feed roll 4 to the paper transport path 3 Send to.
この時、電磁クラツチ２２はＯＮ（励磁）となり、小径
スプロケツト１８と軸２０とが連結されるから、軸２０
は小径スプロケツト１８によつて高速回転される。な
お、大径スプロケツト１６は低速回転するが一方向クラ
ツチ２１の作用によつて大径スプロケツト１６は軸２０
に対してフリー回転する。At this time, the electromagnetic clutch 22 is turned on (excitation) and the small diameter sprocket 18 and the shaft 20 are connected to each other.
Is rotated at high speed by a small diameter sprocket 18. Although the large diameter sprocket 16 rotates at a low speed, the large diameter sprocket 16 is rotated by the action of the one-way clutch 21.
Rotate freely against.
そして、用紙先端をフオトセンサ５が検出すると第１・
第２ソレノイド８，１０と電磁クラツチ２２の電気制御
回路に設けたタイマーがセツトされ、カウント開始す
る。When the photo sensor 5 detects the leading edge of the paper, the first
The timers provided in the electric control circuits of the second solenoids 8 and 10 and the electromagnetic clutch 22 are set to start counting.
そして、用紙先端が用紙ストツパ６に当接すると、タイ
マーよりの信号で第１ソレノイド８をＯＮして折り込み
ガイド７を破線位置とし用紙中間部をニツプ２に送り込
む。When the leading edge of the sheet comes into contact with the sheet stopper 6, the first solenoid 8 is turned on by the signal from the timer to set the folding guide 7 to the broken line position and send the sheet intermediate portion to the knives 2.
前述の送り込みが完了するとタイマーよりの信号で第２
ソレノイド１０をＯＮして折り込みピンチロール９を破
線位置として用紙を折りロール１とで挾持し、これと同
時に電磁クラツチ２２がOFFとなつて小径スプロケツト
１８を軸２０に対してフリーとし、軸２０は大径スプロ
ケツト１６で低速されて折りロール１は低速回転する。When the above-mentioned sending is completed, the second signal is sent from the timer.
The solenoid 10 is turned on and the folding pinch roll 9 is set to a broken line position to hold the sheet between the folding roll 1 and the electromagnetic clutch 22 which is turned off at the same time to make the small diameter sprocket 18 free from the shaft 20. The folding roller 1 is rotated at a low speed by being rotated at a low speed by the large diameter sprocket 16.
このために、用紙の折られる部分はニツプ部２をゆつく
りと時間をかけて通過するから、用紙の折り程度を十分
なものにできる。For this reason, the folded portion of the sheet passes through the nip portion 2 slowly and slowly, so that the sheet can be folded sufficiently.
この後に、用紙の折られる部分がニツプ部２を通過する
と前記タイマーよりの信号で第１・第２ソレノイド８，
１０をOFFすると共に、電磁クラツチ２２がＯＮとな
り、折り込みガイド７と折り込みピンチロール９とを実
線位置とすると共に、小径スプロケツト１８と軸２０を
連結して軸２０を高速回転し、折りロール１が高速回転
して折られた用紙が高速で排出される。After this, when the folded portion of the paper passes the nip portion 2, the first and second solenoids 8, 8
When 10 is turned off and the electromagnetic clutch 22 is turned on, the folding guide 7 and the folding pinch roll 9 are set to the solid line position, and the small diameter sprocket 18 and the shaft 20 are connected to rotate the shaft 20 at a high speed. Paper that is rotated at high speed and folded is ejected at high speed.
以上の動作をタイミングダイヤグラムで表わすと第４図
のようになる。The above operation is represented by a timing diagram as shown in FIG.
つまり、タイマーは用紙先端をフオトセンサが検出して
から、その用紙先端が用紙ストツパー６に当接するまで
の時間t1、用紙中間部がニツプ部２に送り込まれるまで
の時間t2、用紙の折られる部分がニツプ部２を通過する
までの時間t3をセツトし、その時間t1，t2，t3となると
前述のように第１・第２ソレノイド８，１０、電磁クラ
ツチ２２をＯＮ，OFF制御する。In other words, the timer folds the sheet from the time when the photo sensor detects the leading edge of the sheet to the time t 1 until the leading edge of the sheet contacts the sheet stopper 6 and the time t 2 until the intermediate portion of the sheet is fed to the nip section 2. The time t 3 required for the portion to pass through the nip portion 2 is set, and when the times t 1 , t 2 and t 3 are reached, the first and second solenoids 8 and 10 and the electromagnetic clutch 22 are turned on and off as described above. Control.
なお、第１ソレノイド８のＯＮ信号は用紙先端が用紙ス
トツパー６に当接してから若干の時間を経て出力しても
良いと共に、第１・第２ソレノイド８，１０のOFF信号
と電磁クラツチ22のＯＮ信号を用紙の折られる部分がニ
ツプ部２を通過してから若干の時間を経て後に出力して
も良い。The ON signal of the first solenoid 8 may be output a short time after the leading edge of the paper comes into contact with the paper stopper 6, and the OFF signal of the first and second solenoids 8 and 10 and the electromagnetic clutch 22 may be output. The ON signal may be output after some time has passed after the folded portion of the paper passes through the nip portion 2.
この様にすれば、若干の動作遅れがあつても確実に紙折
り動作ができる。By doing so, the paper folding operation can be reliably performed even if there is a slight delay in the operation.
以上の実施例ではスプロケツトとチエーンとを設けた
が、ギヤを用いても良いし、電磁クラツチの代りに爪ク
ラツチなどを用いても良い。Although the sprocket and the chain are provided in the above embodiments, a gear may be used, or a claw clutch or the like may be used instead of the electromagnetic clutch.
また、タイマーの代りに用紙搬送路やニツプ部の出口側
に用紙検出器を設け、この検出信号で折りロールの回転
速度を２段階に切換えるようにしても良い。Further, instead of the timer, a paper detector may be provided on the paper transport path or the exit side of the nip portion, and the rotation speed of the folding roll may be switched between two stages by this detection signal.
つまり、折りロール１を高低２段階の回転速度で切り換
え駆動する手段と、用紙の折られる部分がニツプ部に入
ったことを検出する第１の検出手段と、出たことを検出
する第２の検出手段と、 第１の検出手段の検出信号で低速回転切換え、第２の検
出手段の検出信号で高速回転に切換える手段とを設けれ
ば良い。That is, a means for switching and driving the folding roll 1 at two high and low rotational speeds, a first detecting means for detecting that the folded portion of the paper has entered the nip portion, and a second detecting means for detecting that the folded roll 1 has come out. It suffices to provide detection means and means for switching to low speed rotation by the detection signal of the first detection means and switching to high speed rotation by the detection signal of the second detection means.
発明の効果 用紙の折られる部分がニツプ部を通過する時には折りロ
ールを低速回転して、ニツプ部を時間をかけてゆつくり
と通過するようにしたから、用紙の折り程度を十分とし
て手作業で増し折りする必要をなくすことができると共
に、折りロールは最も負荷のかかる時に低速回転させる
ので動力源のパワーを小さくできる。EFFECTS OF THE INVENTION When the folded portion of the paper passes through the nip portion, the folding roll is rotated at a low speed so that the nip portion is slowly and slowly passed through. It is possible to eliminate the need for additional folding, and the folding roll is rotated at a low speed when the load is most applied, so that the power of the power source can be reduced.
また、折りロール用紙の折られる部分がニツプ部を通過
する時だけ低速回転で、他の時には高速回転するので、
折り紙の生産性が低下することが殆んどない。Also, since the folded portion of the folded roll paper rotates at a low speed only when it passes through the nip portion, it rotates at a high speed at other times.
The productivity of origami is hardly reduced.
【図面の簡単な説明】 図面は本発明の実施例を示し、第１図は全体図、第２図
は折りロールの動力伝達部分の斜視図、第３図は大径・
小径スプロケツトの取付部分の断面図、第４図は動作タ
イミングダイヤグラムである。 １は折りロール、２はニツプ部。BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention. FIG. 1 is an overall view, FIG. 2 is a perspective view of a power transmission portion of a folding roll, and FIG.
FIG. 4 is a sectional view of the mounting portion of the small diameter sprocket and FIG. 4 is an operation timing diagram. 1 is a folding roll, 2 is a nip part.
Claims (1)
紙を通過させて折り畳みする用紙折り装置において、前
記折りロール１を高低２段階の回転速度で切換え駆動す
る手段と、用紙の折り部分がニップ部２に入ったことを
検出する第１の検出手段と、出たことを検出する第２の
検出手段と、第１の検出手段の検出信号によって折りロ
ール１を低速回転に切換え、第２の検出手段の検出信号
で折りロール１を高速回転に切換る手段とを設けたこと
を特徴とする用紙折り装置。1. A sheet folding apparatus for folding a sheet by passing a sheet through a nip portion 2 of a pair of folding rolls 1, 1 and a unit for switching and driving the folding roll 1 at two high and low rotational speeds, and folding the sheet. A first detecting means for detecting that the portion has entered the nip portion 2, a second detecting means for detecting that the portion has exited, and the folding roll 1 is switched to a low speed rotation by a detection signal of the first detecting means, A sheet folding apparatus, which is provided with means for switching the folding roll 1 to high-speed rotation by a detection signal of the second detecting means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8759585A JPH0620978B2 (en) | 1985-04-25 | 1985-04-25 | Paper folding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8759585A JPH0620978B2 (en) | 1985-04-25 | 1985-04-25 | Paper folding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61248864A JPS61248864A (en) | 1986-11-06 |
| JPH0620978B2 true JPH0620978B2 (en) | 1994-03-23 |
Family
ID=13919347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8759585A Expired - Fee Related JPH0620978B2 (en) | 1985-04-25 | 1985-04-25 | Paper folding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0620978B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7699300B2 (en) * | 2007-02-01 | 2010-04-20 | Toshiba Tec Kabushiki Kaisha | Sheet post-processing apparatus |
| JP5217894B2 (en) * | 2008-10-22 | 2013-06-19 | 株式会社リコー | Sheet folding apparatus and image forming system |
| JP5186406B2 (en) * | 2009-02-06 | 2013-04-17 | デュプロ精工株式会社 | Paper folding mechanism and paper folding device |
-
1985
- 1985-04-25 JP JP8759585A patent/JPH0620978B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61248864A (en) | 1986-11-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |