JPH048344B2 - - Google Patents
Info
- Publication number
- JPH048344B2 JPH048344B2 JP58182547A JP18254783A JPH048344B2 JP H048344 B2 JPH048344 B2 JP H048344B2 JP 58182547 A JP58182547 A JP 58182547A JP 18254783 A JP18254783 A JP 18254783A JP H048344 B2 JPH048344 B2 JP H048344B2
- Authority
- JP
- Japan
- Prior art keywords
- suction box
- movable suction
- sheet
- large diameter
- movable
- 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 - Lifetime
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
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/0808—Suction grippers
- B65H3/0891—Generating or controlling the depression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/12—Suction bands, belts, or tables moving relatively to the pile
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Details Of Cutting Devices (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、段ボールシート又はこれに類した
シート状の紙、金属、プラスチツク等のシートを
打抜き装置、印刷装置等の所要の加工装置に１枚
づつ供給するシート供給装置に関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] This invention is a method for processing sheets of paper, metal, plastic, etc. in the form of corrugated cardboard sheets or similar sheets into a required processing device such as a punching device or a printing device. This invention relates to a sheet feeding device that feeds sheets one by one.
従来公知の基本的なシート供給装置は、ホツパ
ー下部後方に前後動するキツカーを設け、ホツパ
ー内に積み上げたシートを最下層のものから順に
１枚づつ前方に突き出し、１枚のシートのみが通
過できるよう下部のクリアランスが調整されてい
る前定規板を通過させてホツパー前方に設けた供
給ローラに捕捉せしめ、そのローラを介して所要
の加工装置にシートを供給するようになつてい
る。
A conventionally known basic sheet feeding device has a kicker that moves back and forth at the bottom of the hopper, and pushes the sheets stacked in the hopper forward one by one starting from the lowest layer, allowing only one sheet to pass through. The sheet is passed through a front ruler plate whose lower clearance is adjusted so as to be captured by a supply roller provided in front of the hopper, and then supplied to a required processing device via the roller.
しかし、キツカーによつてシートを突き出す方
式によると、シートに反りがある場合に、キツカ
ーとシートとの係合が不十分になり、また前定規
板に引つかかつて供給ミスを生じる問題がある。
また、段ボールシートのように、フルートの筋目
が横向き（フルートの筋目が供給方向に対して直
角になる向き）である場合はキツカーとの係合部
分に座屈を生じ、シートに傷を与えるとともに供
給タイミングに誤差を生じる問題もある。 However, with the method of ejecting the sheet using a kicker, if the sheet is warped, there is a problem in that the engagement between the pusher and the sheet becomes insufficient, and the sheet may get caught on the front ruler plate, causing a feeding error.
In addition, if the flute lines are oriented horizontally (the flute lines are perpendicular to the supply direction), as in the case of corrugated cardboard sheets, buckling may occur at the part that engages with the cutter, damaging the sheet and causing damage to the sheet. There is also the problem of errors in supply timing.
このような問題点を解消したシート供給装置と
して、ホツパー底面に前後方向に往復運動する吸
引ボツクスを設けたシート供給装置が知られてい
る（特公昭51−22276号公報）。この装置は、吸引
ボツクスに吸引したシートをその前方に設置した
供給ローラの軸線位置まで供給できるようにする
ため、吸引ボツクスを中央とその両側の３台の独
立したボツクスにより構成すると共に、中央の吸
引ボツクスと対応した供給ローラの部分に小径部
分を設け、中央の吸引ボツクスが両側の吸引ボツ
クスよりも大きく前進することにより上記の小径
部分に進入するようにしている。 As a sheet feeding apparatus that solves these problems, a sheet feeding apparatus is known in which a suction box that reciprocates in the front and back direction is provided on the bottom of the hopper (Japanese Patent Publication No. 51-22276). In order to be able to feed the sheet sucked into the suction box up to the axial position of the supply roller installed in front of the suction box, the suction box is composed of three independent boxes at the center and on both sides of the suction box. A small-diameter portion is provided in the portion of the supply roller corresponding to the suction box, and the central suction box advances further than the suction boxes on both sides to enter the small-diameter portion.
しかしながら、上記のごとき装置によると、両
側の吸引ボツクスが停止した後も中央の吸引ボツ
クスが前進を続け、両側の吸引ボツクスの吸引に
よる摩擦力に打勝つてシートを前方に引きずりな
がら移動させることになる。
However, according to the above-mentioned device, even after the suction boxes on both sides have stopped, the central suction box continues to move forward, overcoming the frictional force caused by the suction of the suction boxes on both sides and dragging the sheet forward. Become.
このため、シートの供給速度は、両側の吸引ボ
ツクスの吸引による摩擦力と、中央の吸引ボツク
スの吸引力の大小の影響を直接受けることにな
り、供給タイミングが不均一になる欠点がある。
シートの供給タイミングの不均一は、次工程の作
業精度を低下させる原因になる。 Therefore, the sheet feeding speed is directly affected by the frictional force caused by the suction of the suction boxes on both sides and the magnitude of the suction force of the central suction box, which has the disadvantage that the sheet feeding timing becomes uneven.
Uneven timing of sheet supply causes a decrease in work accuracy in the next process.
また、シートを両側の吸引ボツクスの摩擦に打
勝つて引ずるため、シートに擦れ傷が生じる問題
もある。 Furthermore, since the sheet is dragged overcoming the friction of the suction boxes on both sides, there is also the problem of scratches on the sheet.
そこで、この発明はこれらの問題点を解決した
シート供給装置を提供することを技術的課題とす
る。 Therefore, the technical object of the present invention is to provide a sheet feeding device that solves these problems.
上記の課題を解決するために、この発明はホツ
パー２０を前端部に前定規板１７を設けると共に
そのホツパー２０の下部に可動吸引ボツクス１３
を設け、上記可動吸引ボツクス１３の前方に上下
一対の供給ローラ７を設置し、各供給ローラ７に
大径部７ａと小径部７ｂを設け、各供給ローラ７
の大径部７ａと小径部７ｂとを上下に対向せし
め、上記可動吸引ボツクス１３に、その前進時に
その一部が供給ローラ７に達する一定ストローク
の前後運動を与える駆動手段２１，２２，２３を
連結し、上記の可動吸引ボツクス１３に連通口３
５を設け、上記の連通口３５に摺接する摺接板３
４に負圧源と通じた吸引口３６を設け、上記連通
口３５と吸引口３６の関係を、可動吸引ボツクス
１３の最後退位置から最前進位置まで至る１スト
ロークの間に、そのストロークの始めから途中ま
での所要の距離の間相互に連通する関係に設定し
てなるシート供給装置において、上記可動吸引ボ
ツクス１３の前部に供給ローラ７の大径部７ａと
対向した凹所３２ａと、小径部７ｂに対向した凸
所３２ｂとを設け、上記凹所３２ａは可動吸引ボ
ツクス１３の最前進時に大径部７ａに接近するが
接触せず、また上記凸所３２ｂは上下の小径部７
ｂの間の間〓に進入し、少なくとも上下の供給ロ
ーラ７の軸心を結ぶ位置まで前進するように形成
された構成としたものである。
In order to solve the above problems, the present invention provides a hopper 20 with a front ruler plate 17 at the front end and a movable suction box 13 at the bottom of the hopper 20.
A pair of upper and lower supply rollers 7 is installed in front of the movable suction box 13, and each supply roller 7 is provided with a large diameter portion 7a and a small diameter portion 7b.
The large diameter portion 7a and the small diameter portion 7b of the movable suction box 13 are vertically opposed to each other, and driving means 21, 22, 23 are provided which give the movable suction box 13 a back-and-forth movement with a constant stroke, a part of which reaches the supply roller 7 when it moves forward. The communication port 3 is connected to the movable suction box 13 mentioned above.
5, and a sliding contact plate 3 that slides into contact with the communication port 35 described above.
4 is provided with a suction port 36 communicating with a negative pressure source, and the relationship between the communication port 35 and the suction port 36 is determined at the beginning of the stroke during one stroke from the most retracted position to the most forward position of the movable suction box 13 In the sheet feeding apparatus, the movable suction box 13 has a recess 32a facing the large diameter part 7a of the supply roller 7, and a small diameter part 7a in the front part of the movable suction box 13. A convex portion 32b is provided opposite to the portion 7b, and the concave portion 32a approaches the large diameter portion 7a when the movable suction box 13 is moved forward most, but does not come into contact with the large diameter portion 7a.
The feed roller 7 is configured to enter the gap between the feed rollers 7a and 1b and move forward at least to a position where the axes of the upper and lower feed rollers 7 are connected.
上記の構成によると、可動吸引ボツクス１３の
凹所３２ａと凸所３２ｂは一体に前後運動をな
し、凸所３２ｂが少なくとも供給ローラ７の軸心
を結ぶ位置まで前進する。同時に凹所３２ａも前
進するが、凸所３２ｂが最前進位置に達したと
き、凹所３２ａは大径部７ａに接近するが接触し
ない位置まで前進する。凸所３２ｂ及び凹所３２
ａのこのような前進位置関係において可動吸引ボ
ツクス１３の吸引力が解除され、可動吸引ボツク
ス１３上のシートａが上下の供給ローラ７の大径
部７ａの間に捕捉される。
According to the above structure, the concave portion 32a and the convex portion 32b of the movable suction box 13 integrally move back and forth, and the convex portion 32b advances at least to the position where the axes of the supply roller 7 are connected. At the same time, the recess 32a also advances, but when the protrusion 32b reaches the most advanced position, the recess 32a advances to a position where it approaches the large diameter portion 7a but does not come into contact with it. Convex portion 32b and concave portion 32
In such a forward positional relationship of a, the suction force of the movable suction box 13 is released, and the sheet a on the movable suction box 13 is captured between the large diameter portions 7a of the upper and lower supply rollers 7.
図示の実施例は、第１図に示すように、シート
打抜き装置に適用した例である。
The illustrated embodiment is an example applied to a sheet punching device, as shown in FIG.
この打抜き装置は、グリツパー１を一定間隔で
設けた無端状チエンコンベヤ２の移送経路の途中
に、シート供給装置３、打抜き装置４、打抜き屑
分離装置５、打抜きシート分離及びグリツパーマ
ージン解放装置６を設けたものであり、各装置の
タイミングが合うように機械的に結合されてい
る。 This punching device includes a sheet feeding device 3, a punching device 4, a punching waste separation device 5, a punched sheet separation and gripper margin release device, and a sheet feeding device 3, a punching device 4, a punching waste separating device 5, a punching sheet separating device and a gripper margin releasing device. 6, and are mechanically coupled to match the timing of each device.
上記の打抜き装置は、シート供給装置３から１
枚ずつ供給されたシートａを、シート供給装置３
の前方に設けられた上下一対の供給ローラ７に供
給する。該供給ローラ７は、シートａの供給速度
と同速か又はそれよりわずかに速く回転してい
る。該供給ローラ７の前方に開放カム８が設けら
れ、グリツパー１は該開放カム８の作用によりシ
ートａの供給にタイミングを合わせて開放され
る。シートａは該グリツパー１に捕捉され、以後
グリツパー１に捕捉された状態で、順に打抜き、
打抜き屑分離、打抜きシート分離及びグリツパー
マージンの解放の各工程を経る。打抜かれたシー
トは搬送コンベヤ９上に取出され、また打抜き屑
及びグリツパーマージンは共通の排出コンベヤ１
０上に取出される。 The above punching device includes sheet feeding devices 3 to 1.
Sheet feeding device 3
It is supplied to a pair of upper and lower supply rollers 7 provided in front of the. The supply roller 7 is rotating at the same speed as or slightly faster than the speed at which the sheet a is fed. A release cam 8 is provided in front of the supply roller 7, and the gripper 1 is opened in synchronization with the supply of the sheet a by the action of the release cam 8. The sheet a is captured by the gripper 1, and thereafter, while captured by the gripper 1, it is punched out in order,
It goes through the steps of separating punching waste, separating punched sheets, and releasing gripper margins. The punched sheets are taken out onto a transport conveyor 9, and the punching waste and gripper margins are taken out on a common discharge conveyor 1.
0 is taken out.
上記のシート供給装置３は、第２図及び第３図
に示すように、供給ローラ７とバツクガイド１２
との間に可動吸引ボツクス１３を設け、その両側
及び後部にそれぞれ固定吸引ボツクス１４，１
４，１５を設けたものである。また可動吸引ボツ
クス１３によるシートａの送り出しを補助するた
め、バツクガイド１２と後部固定吸引ボツクス１
５との間にキツカー１６が設けられている。後部
固定吸引ボツクス１５は、キツカー１６の係合板
３１にシートａの後端部をより確実に係合せし
め、突き出しミスをできるかぎり無くするために
設けられる。 As shown in FIGS. 2 and 3, the sheet feeding device 3 described above includes a feeding roller 7 and a back guide 12.
A movable suction box 13 is provided between the
4 and 15. In addition, in order to assist the feeding of the sheet a by the movable suction box 13, a back guide 12 and a rear fixed suction box 1 are provided.
A kicker 16 is provided between the two. The rear fixed suction box 15 is provided in order to more reliably engage the rear end of the sheet a with the engagement plate 31 of the kicker 16 and to eliminate ejection errors as much as possible.
なお、シートａは可動吸引ボツクス１３のみに
よつても送り出しができるので、キツカー１６及
びその補助装置である後部固定吸引ボツクス１５
は省略する場合がある。 Incidentally, since the sheet a can be fed out only by the movable suction box 13, it is possible to feed out the sheet a by using only the movable suction box 13.
may be omitted.
上記の供給ローラ７の後側に沿つて前定規板１
７（第３図参照）及び可動吸引ボツクス１３の両
側に沿つて横定規１８，１８（第２図、第５図の
一点鎖線参照）が設けられ、また上記のバツクガ
イド１２の内面が後定規板１９を形成している。
上記の前定規板１７は、上下方向に位置調整がで
きるように取付けられており、シートａが１枚づ
つ通過できるようシートａの厚さによつて下部の
クリアランスが調整される。上記の前、横及び後
定規板１７，１８，１８，１９がホツパー２０
（第３図）を構成し、そのホツパー２０内にシー
トａが多数積み上げられる。 The front ruler plate 1 is placed along the rear side of the above-mentioned supply roller 7.
7 (see Fig. 3) and horizontal rulers 18, 18 (see dashed lines in Figs. 2 and 5) are provided along both sides of the movable suction box 13, and the inner surface of the back guide 12 is provided with a rear ruler. A plate 19 is formed.
The front ruler plate 17 is mounted so that its position can be adjusted in the vertical direction, and the lower clearance is adjusted according to the thickness of the sheets a so that the sheets a can pass one by one. The above front, side and rear ruler plates 17, 18, 18, 19 are the hopper 20
(FIG. 3), and a large number of sheets a are stacked in the hopper 20.
なお、固定吸引ボツクス１４，１４はホツパー
２０の外部に存在することになるので、省略して
もよい。 Note that the fixed suction boxes 14, 14 are located outside the hopper 20, so they may be omitted.
上記の可動吸引ボツクス１３の下方には、駆動
軸２１（第３図、第７図参照）が設けられ、その
駆動軸２１にクランクアーム２２、連結ロツド２
３を介して可動吸引ボツクス１３が連結されてい
る。この可動吸引ボツクス１３は、その両側部が
装置の固定部分であるガイド部材２４，２４（第
７図参照）の摺接部２５によつてスライド自在に
支持され、上記の駆動軸２１の一定回転角の往復
回転により一定ストロークをもつて前後に水平面
内で往復運動できるようになつている。 A drive shaft 21 (see FIGS. 3 and 7) is provided below the movable suction box 13, and a crank arm 22 and a connecting rod 2 are attached to the drive shaft 21.
A movable suction box 13 is connected via 3. This movable suction box 13 is slidably supported at both sides by sliding contact parts 25 of guide members 24, 24 (see FIG. 7), which are fixed parts of the device, and is rotated by the constant rotation of the drive shaft 21. The reciprocating rotation of the horn allows it to move back and forth in a horizontal plane with a constant stroke.
また、キツカー１６を設ける場合、その前後運
動も上記と同じ駆動軸２１から与えられる。すな
わち、第７図に示すように、キツカー１６の左右
両側部においてその下面にスライド部材２６，２
６を取付け、各スライド部材２６，２６を、対向
一対のガイド部材２７，２７にそれぞれ設けた摺
接部材２８によりスライド自在に支持している。
また、上記スライド部材２６を前記の駆動軸２１
にクランクアーム２９及び連結ロツド３０を介し
て連結している。 Further, when the kicker 16 is provided, its back and forth movement is also given by the same drive shaft 21 as described above. That is, as shown in FIG.
6 is attached, and each slide member 26, 26 is slidably supported by a sliding contact member 28 provided on a pair of opposing guide members 27, 27, respectively.
Further, the slide member 26 is connected to the drive shaft 21.
The crank arm 29 and the connecting rod 30 are connected to each other via a crank arm 29 and a connecting rod 30.
したがつて、駆動軸２１の往復回転により前記
の可動吸引ボツクス１３とキツカー１６が同調し
て前後動をすることになる。 Therefore, the reciprocating rotation of the drive shaft 21 causes the movable suction box 13 and the picker 16 to move back and forth in synchronization.
前記の上下の一対の供給ローラ７は第２図に示
すように、それぞれ中央部に大径部７ａを有し、
その両端に一定の長さの小径部７ｂを設け、更に
その小径部７ｂの端に大径部７ｃを設けたもので
ある。両側の大径部７ｃは、両側固定吸引ボツク
ス１４を省略する場合は省略される。なお、上記
の小径部７ｂは供給ローラ７の軸部分である。 As shown in FIG. 2, the pair of upper and lower supply rollers 7 each have a large diameter portion 7a in the center,
A small diameter portion 7b of a constant length is provided at both ends, and a large diameter portion 7c is further provided at the end of the small diameter portion 7b. The large diameter portions 7c on both sides are omitted when the fixed suction boxes 14 on both sides are omitted. Note that the small diameter portion 7b described above is the shaft portion of the supply roller 7.
また、可動吸引ボツクス１３の前部には、大径
部７ａに対応する位置に凹所３２ａが形成され
（第５図参照）、両側の小径部７ｂに対応する位置
に凸所３２ｂが形成される。 Further, in the front part of the movable suction box 13, a recess 32a is formed at a position corresponding to the large diameter part 7a (see FIG. 5), and a convex part 32b is formed at a position corresponding to the small diameter part 7b on both sides. Ru.
上記の凸所３２ｂは下部の供給ローラ７の大径
部７ａの厚さｄ（第４図参照）より薄く形成され、
従つて、可動吸引ボツクス１３が前進すると、そ
の凸所３２ｂが上記の厚さｄを含む間隔で対向す
る上下の小径部７ｂ間に入り（第３図一点鎖線参
照）、前定規板１７の位置から少なくとも上下の
供給ローラ７の軸心を結ぶ位置Ｌ（第３図、第４
図参照）まで前進する。図示の場合は、更にその
位置Ｌを越える位置まで前進する。また凹所３２
ａは、凸所３２ｂと共に前定規板１７の後方位置
から大径部７ａに接近するが、これに接触しない
位置まで前進する。 The above-mentioned convex portion 32b is formed to be thinner than the thickness d (see FIG. 4) of the large diameter portion 7a of the lower supply roller 7,
Therefore, when the movable suction box 13 moves forward, its convex portion 32b enters between the upper and lower small diameter portions 7b that face each other at an interval that includes the above-mentioned thickness d (see the one-dot chain line in FIG. 3), and the position of the front ruler plate 17 changes. to the position L connecting at least the axes of the upper and lower supply rollers 7 (Figs. 3 and 4).
(see figure). In the illustrated case, the robot further moves forward to a position exceeding the position L. Also, the recess 32
a approaches the large diameter portion 7a from the rear position of the front ruler plate 17 together with the convex portion 32b, but moves forward to a position where it does not come into contact with it.
この可動吸引ボツクス１３の上面には、第４
図、第５図に示すように、多数の小孔３３が形成
され、またその下面の一部は左右両側において前
記のガイド部材２４（第７図参照）に設けた摺接
板３４と摺接しており、可動吸引ボツクス１３側
の摺接面には、可動吸引ボツクス１３内部と通
じ、かつ前後方向に長い連通口３５をそれぞれ形
成してある。また、摺接板３４には各連通口３５
に対向して吸引口３６が形成されている。吸引口
３６は、ダクト３７及び分岐継手３８を介して負
圧源に接続されている。 On the top surface of this movable suction box 13, there is a fourth
As shown in FIG. 5, a large number of small holes 33 are formed, and a portion of the lower surface thereof slides on both left and right sides with sliding contact plates 34 provided on the guide member 24 (see FIG. 7). Communication ports 35 communicating with the interior of the movable suction box 13 and long in the front-rear direction are formed on the sliding surface on the movable suction box 13 side. In addition, each communication port 35 is provided on the sliding contact plate 34.
A suction port 36 is formed opposite to. The suction port 36 is connected to a negative pressure source via a duct 37 and a branch joint 38.
なお、前記の両側固定吸引ボツクス１４もダク
ト３９により上記と共通の分岐継手３８を介して
負圧源に接続されているが、前述のように固定吸
引ボツクス１４はこの発明においては必ずしも必
要ではないので、その吸引用作用を適宜な手段で
停止させるようにしてもよい。また、後方固定吸
引ボツクス１５は、第６図に示すダクト４０によ
り、同じ負圧源に接続されている。また、後方固
定吸引ボツクス１５とバツクガイド１２は連結部
材４１により一体に結合され、シートａの寸法に
応じてバツクガイド１２を移動させると、吸引ボ
ツクス１５も一体に移動する。この場合、キツカ
ー１６もバツクガイド１２の移動に応じて適宜前
後方向の位置が調整される。 Note that the fixed suction boxes 14 on both sides are also connected to the negative pressure source by the duct 39 via the branch joint 38 common to the above, but as described above, the fixed suction boxes 14 are not necessarily necessary in this invention. Therefore, the suction action may be stopped by appropriate means. The rear fixed suction box 15 is also connected to the same negative pressure source by a duct 40 shown in FIG. Further, the rear fixed suction box 15 and the back guide 12 are integrally connected by a connecting member 41, and when the back guide 12 is moved according to the size of the sheet a, the suction box 15 is also moved together. In this case, the position of the kicker 16 in the front and back direction is adjusted as appropriate according to the movement of the back guide 12.
なお、キツカー１６を省略する場合は、後方固
定吸引ボツクス１５も不要となるので、その場合
は該吸引ボツクス１５の吸引作用を適宜な手段で
停止させるようにしてもよい。 In addition, when the kicker 16 is omitted, the rear fixed suction box 15 is also unnecessary, and in that case, the suction action of the suction box 15 may be stopped by an appropriate means.
前記の可動吸引ボツクス１３の連通口３５と摺
接板３４の吸引口３６との関係は、可動吸引ボツ
クス１３がストロークの最後退位置にあるとき
は、第４図及び第５図に示すように、吸引口３６
が連通口３５の前端部と合致し、可動吸引ボツク
ス１３の内部を負圧に保持する。連通口３５の前
端から摺接板３４前端までの距離L1は、前定規
板１７から供給ローラ７の軸心L′（第５図）まで
の距離L2とほぼ等しい。また、これらの距離L1、
L2は可動吸引ボツクス１３のストロークL3（第５
図参照）より小さい。 The relationship between the communication port 35 of the movable suction box 13 and the suction port 36 of the sliding contact plate 34 is as shown in FIGS. 4 and 5 when the movable suction box 13 is at the most retracted position of its stroke. , suction port 36
matches the front end of the communication port 35, and maintains the inside of the movable suction box 13 at negative pressure. The distance L 1 from the front end of the communication port 35 to the front end of the sliding contact plate 34 is approximately equal to the distance L 2 from the front ruler plate 17 to the axis L' of the supply roller 7 (FIG. 5). Also, these distances L 1 ,
L 2 is the stroke L 3 (fifth
(see figure) smaller.
したがつて、可動吸引ボツクス１３のストロー
クL3の途中において、可動吸引ボツクス１３が
距離L1を移動するまでの間は可動吸引ボツクス
１３内は負圧に保持される。またシートａは可動
吸引ボツクス１３と共に距離L2を移動して上下
の供給ローラ７の大径部７ａに捕捉される。これ
と同時に連通口３５の前端も距離L1を移動する。
このためシートａが大継部７ａに捕捉されると、
ほぼ同時に連通口３５が摺接板３４の前端から外
れ、可動吸引ボツクス１３の内部が大気に開放さ
れる。 Therefore, during the stroke L3 of the movable suction box 13, the interior of the movable suction box 13 is maintained at negative pressure until the movable suction box 13 moves the distance L1 . Further, the sheet a moves a distance L 2 together with the movable suction box 13 and is captured by the large diameter portions 7a of the upper and lower supply rollers 7. At the same time, the front end of the communication port 35 also moves a distance L1 .
Therefore, when the sheet a is captured by the joint part 7a,
Almost simultaneously, the communication port 35 is removed from the front end of the sliding contact plate 34, and the interior of the movable suction box 13 is opened to the atmosphere.
なお、上記の連通口３５と吸引口３６の位置関
係を逆にすること、すなわち、長円孔の連通口を
固定側、円形の吸引口を可動側に設けることも可
能である。 It is also possible to reverse the positional relationship between the communication port 35 and the suction port 36, that is, to provide the oblong hole communication port on the fixed side and the circular suction port on the movable side.
また、シートａが供給ローラ７の大径部７ａに
捕捉されると、シートａの移動速度が可動吸引ボ
ツクス１３のそれより速くなり、大気に通じる小
孔３３が次第に増加して可動吸引ボツクス１３内
部は大気に開放されるので、必ずしも連通口３５
を大気に通じるように切換えるような構成でなく
てもよい。 Further, when the sheet a is captured by the large diameter portion 7a of the supply roller 7, the moving speed of the sheet a becomes faster than that of the movable suction box 13, and the small holes 33 communicating with the atmosphere gradually increase, and the movable suction box 13 Since the inside is open to the atmosphere, it is not necessary to open the communication port 35.
It is not necessary to have a configuration in which the switch is switched to communicate with the atmosphere.
この発明の実施例は以上のごとき構造をもつた
ものであり、次にその作用について説明する。 The embodiment of the present invention has the above structure, and its operation will be explained next.
ホツパー２０に多数のシートａを積み上げる
と、最下層のシートａがキツカー１６の先端部に
載る。負圧源を作用させるとシートａは各吸引ボ
ツクス１３，１５の上面に吸着され、特に後方固
定吸引ボツクス１５は、シートａの端部をキツカ
ー１６の係合板３１に一層確実に圧接させる。ま
た、可動吸引ボツクス１３は、シートａを吸着す
ることにより、シートａが反つている場合でも、
前定規板１７に引つかかることなく、１枚づつ供
給ローラ７に送り込むことができる。 When a large number of sheets a are stacked on the hopper 20, the lowest sheet a is placed on the tip of the picker 16. When the negative pressure source is applied, the sheet a is attracted to the upper surface of each suction box 13, 15, and in particular, the rear fixed suction box 15 brings the end of the sheet a into more reliable pressure contact with the engagement plate 31 of the kicker 16. In addition, by suctioning the sheet a, the movable suction box 13 can absorb the sheet a even if the sheet a is warped.
The sheets can be fed one by one to the supply roller 7 without being caught by the front ruler plate 17.
上記のように、ホツパー２０にシートａを多数
積み上げた状態から駆動軸２１を駆動すると、可
動吸引ボツクス１３とキツカー１６が一体に前進
を開始し、最下層のシートａは、キツカー１６と
可動吸引ボツクス１３の両者によつて前方へ送り
出される。かくして、キツカー１６と可動吸引ボ
ツクス１３は１ストローク分だけ前進するが、こ
のストロークの途中でシートａの先端がシートａ
の供給速度と同速又はこれより速い速度で回転し
ている供給ローラ７の大径部７ａに捕捉される。
これとほぼ同時に可動吸引ボツクス１３の内部圧
は速やかに大気に開放されるので、シートａは大
径部７ａとの間にスリツプを生じることなく、し
たがつて供給タイミングに不整合を生じることな
く、グリツパー１に捕捉される。 As described above, when the drive shaft 21 is driven from a state where a large number of sheets a are stacked on the hopper 20, the movable suction box 13 and the kicker 16 start moving forward together, and the lowest sheet a It is sent forward by both boxes 13. In this way, the kicker 16 and the movable suction box 13 move forward by one stroke, but in the middle of this stroke, the leading edge of the sheet a
The large diameter portion 7a of the supply roller 7, which is rotating at the same speed as or faster than the supply speed, is captured by the large diameter portion 7a of the supply roller 7.
At almost the same time, the internal pressure of the movable suction box 13 is quickly released to the atmosphere, so that the sheet a does not slip between itself and the large diameter portion 7a, and therefore, there is no mismatch in the supply timing. , captured by gripper 1.
なお、キツカー１６及びその補助装置である後
方固定吸引ボツクス１５を省略した場合は、可動
吸引ボツクス１３のみによつてシートａが供給ロ
ーラ７に供給される。 Note that if the picker 16 and its auxiliary device, the rear fixed suction box 15, are omitted, the sheet a is fed to the supply roller 7 only by the movable suction box 13.
以上述べたように、この発明の装置は、可動吸
引ボツクスの前部に凸所と凹所を設け、凸所が前
定規板の位置から少なくとも上下の供給ローラの
軸心を結ぶ位置まで前進することができるので、
シートを確実に供給ローラの大径部に供給するこ
とができる。また、上記の凹所は凸所と一体に移
動するので、シートが引きずられることがなく、
従つて、シートの供給タイミングが均一になり、
またシートに擦れ傷がつくこともない効果があ
る。
As described above, in the device of the present invention, a convex portion and a concave portion are provided at the front of the movable suction box, and the convex portion advances from the position of the front ruler plate to at least the position connecting the axes of the upper and lower supply rollers. Because you can
The sheet can be reliably fed to the large diameter portion of the feed roller. In addition, since the recesses mentioned above move together with the protrusions, the sheet will not be dragged.
Therefore, the sheet supply timing becomes uniform, and
It also has the effect of preventing the sheet from being scratched.
第１図は打抜き装置の全体図、第２図はシート
供給装置の平面図、第３図は第２図の−線の
断面図（但し、吸引ボツクスの一部省略）、第４
図は第５図の−線の断面図、第５図は第２図
の一部拡大横断平面図、第６図は第２図の−
線の断面図（但し、キツカー駆動機構省略）、第
７図はシート供給装置の一部省略側面図である。
３……シート供給装置、７……供給ローラ、７
ａ…大径部、７ｂ……小径部、７ｃ……大径部、
１３……可動吸引ボツクス、１４，１５……固定
吸引ボツクス、２０……ホツパー、２１……駆動
軸、２２……クランクアーム、２３……連結ロツ
ド、２４……ガイド部材、３２ａ……凹所、３２
ｂ……凸所、３４……摺接板、３５……連通口、
３６……吸引口。
Fig. 1 is an overall view of the punching device, Fig. 2 is a plan view of the sheet feeding device, Fig. 3 is a sectional view taken along the - line in Fig. 2 (however, the suction box is partially omitted), and Fig. 4 is a plan view of the sheet feeding device.
The figure is a sectional view taken along the - line in Fig. 5, Fig. 5 is a partially enlarged cross-sectional plan view of Fig. 2, and Fig. 6 is a - line in Fig. 2.
7 is a partially omitted side view of the sheet feeding device. 3... Sheet supply device, 7... Supply roller, 7
a...large diameter part, 7b...small diameter part, 7c...large diameter part,
13... Movable suction box, 14, 15... Fixed suction box, 20... Hopper, 21... Drive shaft, 22... Crank arm, 23... Connection rod, 24... Guide member, 32a... Recess , 32
b...Protrusion, 34...Sliding contact plate, 35...Communication port,
36...Suction port.
Claims (1)
ると共にそのホツパー２０の下部に可動吸引ボツ
クス１３を設け、上記可動吸引ボツクス１３の前
方に上下一対の供給ローラ７を設置し、各供給ロ
ーラ７に大径部７ａと小径部７ｂを設け、各供給
ローラ７の大径部７ａと小径部７ｂとを上下に対
向せしめ、上記可動吸引ボツクス１３に、その前
進時にその一部が供給ローラ７に達する一定スト
ロークの前後運動を与える駆動手段２１，２２，
２３を連結し、上記の可動吸引ボツクス１３に連
通口３５を設け、上記の連通口３５に摺接する摺
接板３４に負圧源と通じた吸引口３６を設け、上
記連通口３５と吸引口３６の関係を、可動吸引ボ
ツクス１３の最後退位置から最前進位置まで至る
１ストロークの間に、そのストロークの始めから
途中までの所要の距離の間相互に連通する関係に
設定してなるシート供給装置において、上記可動
吸引ボツクス１３の前部に供給ローラ７の大径部
７ａと対向した凹所３２ａと、小径部７ｂに対向
した凸所３２ｂとを設け、上記凹所３２ａは可動
吸引ボツクス１３の最前進時に大径部７ａに接近
するが接触せず、また上記凸所３２ｂは上下の小
径部７ｂの間の間〓に進入し、少なくとも上下の
供給ローラ７の軸心を結ぶ位置まで前進するよう
に形成されていることを特徴とするシート供給装
置。1. A front ruler plate 17 is provided at the front end of the hopper 20, and a movable suction box 13 is provided at the bottom of the hopper 20. A pair of upper and lower supply rollers 7 is installed in front of the movable suction box 13. A large diameter part 7a and a small diameter part 7b are provided, and the large diameter part 7a and the small diameter part 7b of each supply roller 7 are vertically opposed to each other, so that a part of the supply roller 7 reaches the movable suction box 13 when it moves forward. Drive means 21, 22 that provide a constant stroke back and forth movement;
23, a communication port 35 is provided in the movable suction box 13, a suction port 36 communicating with a negative pressure source is provided in the sliding contact plate 34 that slides on the communication port 35, and the communication port 35 and the suction port are connected to each other. 36 are set to communicate with each other for a required distance from the beginning to the middle of the stroke during one stroke from the most retracted position to the most advanced position of the movable suction box 13. In the apparatus, a recess 32a facing the large diameter part 7a of the supply roller 7 and a projection 32b facing the small diameter part 7b are provided in the front part of the movable suction box 13, and the recess 32a is provided in the front part of the movable suction box 13. When moving forward most, it approaches the large diameter portion 7a but does not contact it, and the convex portion 32b enters the space between the upper and lower small diameter portions 7b, and advances at least to the position where the axes of the upper and lower supply rollers 7 are connected. A sheet feeding device characterized in that it is formed so as to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18254783A JPS6077038A (en) | 1983-09-30 | 1983-09-30 | Sheet feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18254783A JPS6077038A (en) | 1983-09-30 | 1983-09-30 | Sheet feeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6077038A JPS6077038A (en) | 1985-05-01 |
| JPH048344B2 true JPH048344B2 (en) | 1992-02-14 |
Family
ID=16120191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18254783A Granted JPS6077038A (en) | 1983-09-30 | 1983-09-30 | Sheet feeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6077038A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4852282U (en) * | 1971-10-19 | 1973-07-06 | ||
| JPS5122276A (en) * | 1974-08-19 | 1976-02-21 | Matsushita Electric Industrial Co Ltd | Sentakuki |
| JPS51148180U (en) * | 1975-05-22 | 1976-11-27 |
-
1983
- 1983-09-30 JP JP18254783A patent/JPS6077038A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6077038A (en) | 1985-05-01 |
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