JP2017218260A - Sheet lifting device - Google Patents

Sheet lifting device Download PDF

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JP2017218260A
JP2017218260A JP2016112559A JP2016112559A JP2017218260A JP 2017218260 A JP2017218260 A JP 2017218260A JP 2016112559 A JP2016112559 A JP 2016112559A JP 2016112559 A JP2016112559 A JP 2016112559A JP 2017218260 A JP2017218260 A JP 2017218260A
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sheet
suction
suction pad
contact
uppermost sheet
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JP6836111B2 (en
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和弥 滝澤
Kazuya Takizawa
和弥 滝澤
健一 今泉
Kenichi Imaizumi
健一 今泉
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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 sheet lifting device capable of separating a top layer sheet from second and succeeding sheets under the top layer sheet out of multiple sheets accumulated in a stacked state, as well as preventing displacement of a horizontal position of the lifted sheet.SOLUTION: A sheet lifting device 10 comprises: a suction pad (for example, a suction pad 14) for suctioning a sheet at a top layer out of multiple sheets accumulated in a stacked state; and non-contact suction parts (for example, non-contact suction pads 16) for suctioning the sheet at the top layer by generating a negative pressure between the sheet at the top layer and the non-contact suction part. The suction part is constituted of a member stretchable in an advancing/retracting direction of a support part 12, and the suction part and the non-contact suction parts are supported by the support part 12 so that a lower end position of the suction part at a non-contracted state is lower than a lower end position of the non-contact suction part.SELECTED DRAWING: Figure 1

Description

本発明は、積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を持ち上げる枚葉紙持ち上げ装置に関する。   The present invention relates to a sheet lifting apparatus that lifts the uppermost sheet among a plurality of sheets stacked in a stacked state.

積層状態で堆積される複数の枚葉紙から最上層の枚葉紙を持ち上げる装置として、従来から様々なタイプのものが用いられている。ここで、積層状態で堆積される複数の枚葉紙から最上層の枚葉紙を分離させるにあたり、最上層の枚葉紙と上から２番目以降の枚葉紙が静電気等によって重なった状態で複数の枚葉紙がまとめて分離されてしまうことを防止するために、従来から様々な工夫がなされている。例えば、特許文献１には、吸着パッドに枚葉紙を吸着させた後、吸着パッドに吸着されている枚葉紙の両端部を固定された板に押し当てることにより枚葉紙を変形させ、最上層の枚葉紙における上から２番目の枚葉紙に対向する面に応力を生じさせることにより上から２番目以降の枚葉紙を落とすような装置が開示されている。また、特許文献２には、積層状態で堆積されている枚葉紙のうち、最上層の枚葉紙の端部１か所のみを非接触吸引パッドにより持ち上げ、持ち上げた最上層の枚葉紙と２番目以降の枚葉紙の間の空間に高圧空気を噴射することにより最上層の枚葉紙の全体を持ち上げ、接触吸着部により吸着する装置が開示されている。また、特許文献３には、所定の方向に交互に並んだ小型の非接触吸引パッドおよび小型の接触吸引パッドを複数列用いることにより最上層の枚葉紙を波形状に湾曲させ、最上層の枚葉紙のみを持ち上げる装置が開示されている。   Conventionally, various types of apparatuses are used as a device for lifting the uppermost sheet from a plurality of sheets stacked in a stacked state. Here, in separating the uppermost sheet from a plurality of sheets stacked in a stacked state, the uppermost sheet and the second and subsequent sheets from above are overlapped by static electricity or the like. In order to prevent a plurality of sheets from being separated together, various devices have been conventionally made. For example, in Patent Document 1, after a sheet is adsorbed on the suction pad, the sheet is deformed by pressing both ends of the sheet adsorbed on the suction pad against a fixed plate, An apparatus is disclosed in which the second and subsequent sheets from the top are dropped by generating stress on the surface of the uppermost sheet that faces the second sheet from the top. Further, in Patent Document 2, among the sheets stacked in a stacked state, only one end portion of the uppermost sheet is lifted by a non-contact suction pad, and the uppermost sheet is lifted. And an apparatus that lifts the entire uppermost sheet by injecting high-pressure air into the space between the second sheet and the second and subsequent sheets, and adsorbs it by a contact adsorption unit. Further, in Patent Document 3, by using a plurality of rows of small non-contact suction pads and small contact suction pads arranged alternately in a predetermined direction, the uppermost sheet is curved into a wave shape, An apparatus for lifting only a sheet is disclosed.

特開２０１０−１００４１９号公報JP 2010-1000041 A 特開２０００−６２９７９号公報JP 2000-62979 A 特開２０１３−２４９２００号公報JP 2013-249200 A

しかしながら、特許文献１に開示される装置では、上から２番目以降の枚葉紙が自然落下するため当該枚葉紙の水平方向における位置がずれてしまったり、所定の大きさの枚葉紙しか持ち上げることができなかったりするという問題があった。また、特許文献２に開示される装置では、トリガーやトリガー昇降機といった大型の外部機構が必要であり、コストが高くなってしまうという問題があった。また、特許文献３に開示される装置では、枚葉紙が小さい場合には非接触吸引パッドにより枚葉紙の大部分または全体が持ち上がってしまい、持ち上げられた枚葉紙の水平方向における位置がずれてしまうおそれがあるという問題があった。   However, in the apparatus disclosed in Patent Document 1, since the second and subsequent sheets from the top naturally fall, the position of the sheet in the horizontal direction is shifted, or only a predetermined size sheet is used. There was a problem that it could not be lifted. In addition, the apparatus disclosed in Patent Document 2 requires a large external mechanism such as a trigger or a trigger elevator, which increases the cost. Further, in the apparatus disclosed in Patent Document 3, when a sheet is small, most or all of the sheet is lifted by the non-contact suction pad, and the position of the lifted sheet in the horizontal direction is increased. There was a problem that it might shift.

本発明は、このような点を考慮してなされたものであり、シンプルな構成によって積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を上から２番目以降の枚葉紙から分離させることができ、しかも持ち上げられた枚葉紙の水平方向における位置がずれてしまうことを防止することができる枚葉紙持ち上げ装置を提供することを目的とする。   The present invention has been made in consideration of the above points, and the second and subsequent sheets from the top are selected as the uppermost sheet among a plurality of sheets stacked in a stacked state with a simple configuration. It is an object of the present invention to provide a sheet lifting device that can be separated from the paper and can prevent the position of the lifted sheet in the horizontal direction from shifting.

本発明の枚葉紙持ち上げ装置は、積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を持ち上げる枚葉紙持ち上げ装置であって、積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を吸着するための吸着部と、積層状態で堆積される複数の枚葉紙に対して進退可能となっており、前記吸着部を支持する支持部と、前記支持部に設けられ、積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙の上面に沿って気体を噴出することにより、最上層の枚葉紙との間に負圧を生じさせることによって最上層の枚葉紙を吸引する非接触吸引部とを備え、前記吸着部は前記支持部の進退方向に沿った方向に伸縮自在な部材から構成されており、収縮していない状態における前記吸着部の下端の位置が前記非接触吸引部の下端の位置よりも低くなるよう前記吸着部および前記非接触吸引部が前記支持部に支持されていることを特徴とする。   The sheet lifting apparatus of the present invention is a sheet lifting apparatus that lifts the uppermost sheet among a plurality of sheets stacked in a stacked state, and a plurality of sheets stacked in a stacked state An adsorbing part for adsorbing the uppermost sheet of paper, and advancing and retreating with respect to a plurality of sheets stacked in a stacked state; a supporting part for supporting the adsorbing part; A negative pressure is created between the uppermost sheet by ejecting gas along the upper surface of the uppermost sheet among a plurality of sheets that are provided in the support and are stacked in a stacked state. And a non-contact suction part that sucks the uppermost sheet by generating the suction part, and the suction part is made of a member that can expand and contract in a direction along the advancing and retreating direction of the support part, and is not contracted. The position of the lower end of the suction part in the state is more than the position of the lower end of the non-contact suction part Kunar so the suction portion and the non-contact sucking unit is characterized in that it is supported by the support portion.

このような枚葉紙持ち上げ装置によれば、非接触吸引部、および収縮していない状態における下端の位置が非接触吸引部の下端の位置よりも低くなるような伸縮自在である吸着部が設けられているため、吸着部により最上層の枚葉紙を抑えながら非接触吸引部によりこの最上層の枚葉紙の別の個所を持ち上げることにより、枚葉紙を湾曲させることができる。このことにより、積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を上から２番目以降の枚葉紙から分離させることができ、しかも持ち上げられた枚葉紙の水平方向における位置のずれを防止することができる。   According to such a sheet lifting apparatus, the non-contact suction portion and the suction portion that is extendable and retractable so that the position of the lower end when not contracted is lower than the position of the lower end of the non-contact suction portion are provided. Therefore, the sheet can be bent by lifting another portion of the uppermost sheet by the non-contact suction part while holding the uppermost sheet by the suction part. As a result, the uppermost sheet among the plurality of sheets stacked in a stacked state can be separated from the second and subsequent sheets from the top, and the horizontal direction of the lifted sheets It is possible to prevent the position shift at.

本発明の枚葉紙持ち上げ装置においては、前記吸着部を挟むよう複数の前記非接触吸引部が支持部に設けられていてもよい。   In the sheet lifting device of the present invention, a plurality of the non-contact suction portions may be provided on the support portion so as to sandwich the suction portion.

本発明の枚葉紙持ち上げ装置は、前記吸着部における伸縮自在な部材は前記蛇腹形状のものから構成されていてもよい。   In the sheet lifting device of the present invention, the elastic member in the suction portion may be configured of the bellows shape.

本発明の枚葉紙持ち上げ装置によれば、シンプルな構成によって積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を上から２番目以降の枚葉紙から分離させることができ、しかも持ち上げられた枚葉紙の水平方向における位置がずれてしまうことを防止することができる枚葉紙持ち上げ装置を提供することができる。   According to the sheet lifting apparatus of the present invention, it is possible to separate the uppermost sheet from the second and subsequent sheets from the top among a plurality of sheets stacked in a stacked state with a simple configuration. In addition, it is possible to provide a sheet lifting device that can prevent the position of the lifted sheet in the horizontal direction from shifting.

本発明の実施の形態による枚葉紙持ち上げ装置の構成を概略的に示す側面図である。It is a side view which shows roughly the structure of the sheet lifting apparatus by embodiment of this invention. 図１に示す枚葉紙持ち上げ装置の支持部を下側から見たときの構成を示す底面図である。It is a bottom view which shows a structure when the support part of the sheet lifting apparatus shown in FIG. 1 is seen from the lower side. 図１に示す枚葉紙持ち上げ装置により枚葉紙を持ち上げる動作を示す側面図である。It is a side view which shows the operation | movement which lifts a sheet by the sheet lifting apparatus shown in FIG. 図３に示す状態から引き続く、図１に示す枚葉紙持ち上げ装置により枚葉紙を持ち上げる動作を示す側面図である。FIG. 4 is a side view showing an operation of lifting the sheet by the sheet lifting device shown in FIG. 1, continued from the state shown in FIG. 3. 図４に示す状態から引き続く、図１に示す枚葉紙持ち上げ装置により枚葉紙を持ち上げる動作を示す側面図である。FIG. 5 is a side view showing an operation of lifting the sheet by the sheet lifting device shown in FIG. 1, continued from the state shown in FIG. 4. 図５に示す状態から引き続く、図１に示す枚葉紙持ち上げ装置により枚葉紙を持ち上げる動作を示す側面図である。FIG. 6 is a side view showing an operation of lifting the sheet by the sheet lifting device shown in FIG. 1, continued from the state shown in FIG. 5.

以下、図面を参照して本発明の実施の形態について説明する。図１乃至図６は、本実施の形態による枚葉紙持ち上げ装置を示す図である。このうち、図１は、本実施の形態による枚葉紙持ち上げ装置の構成を概略的に示す側面図であり、図２は、図１に示す枚葉紙持ち上げ装置の支持部を下側から見たときの構成を示す底面図である。また、図３乃至図６は、図１に示す枚葉紙持ち上げ装置により枚葉紙を持ち上げる動作を順に示す側面図である。なお、図１乃至図６において、本実施の形態による枚葉紙持ち上げ装置により持ち上げられるべき枚葉紙を参照符号Ｗで示している。   Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 are views showing a sheet lifting apparatus according to the present embodiment. Among these, FIG. 1 is a side view schematically showing the configuration of the sheet lifting apparatus according to the present embodiment, and FIG. 2 is a view of the support portion of the sheet lifting apparatus shown in FIG. FIG. 3 to 6 are side views sequentially showing the operation of lifting the sheets by the sheet lifting device shown in FIG. In FIG. 1 to FIG. 6, the sheet to be lifted by the sheet lifting device according to the present embodiment is indicated by the reference symbol W.

本実施の形態による枚葉紙持ち上げ装置１０は、積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を持ち上げるものである。図１および図２に示すように、本実施の形態による枚葉紙持ち上げ装置１０は、複数の枚葉紙が積層状態で堆積される枚葉紙受け部４０と、枚葉紙受け部４０に対して図１における上下方向に進退可能となっている支持部１２と、支持部１２の底面における中央位置に設けられ、枚葉紙受け部４０に積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を吸着するための吸着パッド１４と、支持部１２の底面における吸着パッド１４の両側の位置に設けられ、枚葉紙受け部４０に積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を吸引する２つの非接触吸引パッド１６とを備えている。また、吸着パッド１４は支持部１２の進退方向に沿った方向に伸縮自在なものであれば良く、一例をあげると、蛇腹形状の部材から構成されており、収縮していない状態における吸着パッド１４の下端の位置は非接触吸引パッド１６の下端の位置よりも低くなるように支持部１２に支持されている。ここで、上述の「吸着パッド１４の下端の位置は非接触吸引パッド１６の下端の位置よりも低くなる」とは、吸着パッド１４の下端の位置は非接触吸引パッド１６の下端の位置よりも枚葉紙に距離が近いという意味である。このような枚葉紙持ち上げ装置１０の各構成部材の詳細について以下に説明する。   The sheet lifting apparatus 10 according to the present embodiment lifts the uppermost sheet among a plurality of sheets stacked in a stacked state. As shown in FIGS. 1 and 2, the sheet lifting apparatus 10 according to the present embodiment includes a sheet receiving unit 40 in which a plurality of sheets are stacked in a stacked state, and a sheet receiving unit 40. On the other hand, a support portion 12 that can be moved back and forth in FIG. 1 and a plurality of sheets that are provided in the center of the bottom surface of the support portion 12 and are stacked on the sheet receiving portion 40 in a stacked state. Among them, a suction pad 14 for adsorbing the uppermost sheet, and a plurality of sheets which are provided at positions on both sides of the suction pad 14 on the bottom surface of the support portion 12 and are stacked on the sheet receiving portion 40. Two non-contact suction pads 16 for sucking the uppermost sheet of the sheets are provided. Further, the suction pad 14 may be any one that can expand and contract in a direction along the advancing / retreating direction of the support portion 12. For example, the suction pad 14 is configured by a bellows-shaped member and is not contracted. Is supported by the support portion 12 so as to be lower than the position of the lower end of the non-contact suction pad 16. Here, “the position of the lower end of the suction pad 14 is lower than the position of the lower end of the non-contact suction pad 16” means that the position of the lower end of the suction pad 14 is lower than the position of the lower end of the non-contact suction pad 16. It means that the distance is close to the sheet. Details of each component of the sheet lifting apparatus 10 will be described below.

図２に示すように、支持部１２は略長方形形状の板状部材から構成されており、当該支持部１２は枚葉紙受け部４０に対して図１における上下方向に進退可能となっている。より詳細には、本実施の形態による枚葉紙持ち上げ装置１０はピストン３０を備えており、当該ピストン３０により図１における上下方向に進退させられるロッド部材３２の先端（下端）に支持部１２の上面が取り付けられている。このことにより、ピストン３０によりロッド部材３２が図１における上下方向に進退させられると、支持部１２は枚葉紙受け部４０に対して図１における上下方向に移動するようになる。   As shown in FIG. 2, the support portion 12 is composed of a substantially rectangular plate-like member, and the support portion 12 can be moved back and forth in the vertical direction in FIG. 1 with respect to the sheet receiving portion 40. . More specifically, the sheet lifting device 10 according to the present embodiment includes a piston 30, and the support member 12 is provided at the tip (lower end) of the rod member 32 that is moved forward and backward in FIG. The top surface is attached. Accordingly, when the rod member 32 is advanced and retracted in the vertical direction in FIG. 1 by the piston 30, the support portion 12 moves in the vertical direction in FIG. 1 with respect to the sheet receiving portion 40.

吸着パッド１４は、図１における上下方向に伸縮自在な蛇腹形状の部材（例えば金属でもよいし、弾性ゴムでもよいし、更に他の材料でもよい）から構成されており、枚葉紙受け部４０に積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を吸着するようになっている。より詳細には、吸着パッド１４の下端が枚葉紙受け部４０に積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙に接触したのち更に支持部１２が下方向に移動すると蛇腹形状の部分が収縮する。また、吸着パッド１４には空気吸引管２２を介して空気吸引部２０が接続されており、ベルヌーイチャックといわれる原理を用い、空気吸引部２０が空気吸引管２２から空気の吸引を行うことにより吸着パッド１４は周囲の空気を吸引するようになっている。このことにより、枚葉紙受け部４０に積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙の中央箇所が吸着パッド１４により吸着される。なお、吸着パッド１４は、積層状態で堆積される枚葉紙のうち最上層の枚葉紙の位置ずれの防止のため利用されるため、吸着パッド１４に用いる空気の圧力は、吸着パッド１４だけでは最上層の枚葉紙を持ち上げられない程度の微弱なものとしてもよい。   The suction pad 14 is composed of a bellows-shaped member (for example, metal, elastic rubber, or other material) that can expand and contract in the vertical direction in FIG. The uppermost sheet among a plurality of sheets stacked in a stacked state is adsorbed. More specifically, after the lower end of the suction pad 14 comes into contact with the uppermost sheet among a plurality of sheets stacked in a stacked state on the sheet receiving unit 40, the support unit 12 further moves downward. Then, the bellows-shaped part contracts. An air suction unit 20 is connected to the suction pad 14 via an air suction tube 22, and suction is performed by the air suction unit 20 sucking air from the air suction tube 22 using a principle called Bernoulli chuck. The pad 14 sucks ambient air. As a result, the central portion of the uppermost sheet among the plurality of sheets stacked in a stacked state on the sheet receiving unit 40 is adsorbed by the adsorption pad 14. The suction pad 14 is used for preventing the positional deviation of the uppermost sheet among the sheets stacked in a stacked state, and therefore the pressure of air used for the suction pad 14 is only the suction pad 14. Then, it may be weak enough that the uppermost sheet cannot be lifted.

非接触吸引パッド１６は、枚葉紙受け部４０に積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙の上面に沿って空気を噴出することにより最上層の枚葉紙と非接触吸引パッド１６との間に負圧を生じさせることによって最上層の枚葉紙を吸引するようになっている。より詳細には、非接触吸引パッド１６には空気供給管２６を介して空気供給部２４が接続されており、空気供給部２４が空気供給管２６に空気を供給することにより非接触吸引パッド１６に空気が送られるようになっている。このような非接触吸引パッド１６の内部構成について説明する。非接触吸引パッド１６の内部には空気の通路が形成されており、また、非接触吸引パッド１６の底部には空気噴出口が形成されている。そして、空気供給部２４が空気供給管２６に空気を供給することにより当該空気供給管２６から非接触吸引パッド１６に空気が送られると、この空気は非接触吸引パッド１６の内部に形成されている通路を下向きに通って空気噴出口から横向きに噴出されるようになっている。このようにして、非接触吸引パッド１６の底部に設けられた空気噴出口から空気が横向きに噴出されると、上層の枚葉紙と非接触吸引パッド１６の底面との間の空間に負圧が生じるようになり、このことによって上層の枚葉紙が非接触吸引パッド１６により吸引されるようになる。このような非接触吸引パッド１６の原理はベルヌーイ効果として知られており、例えば実開平０２−０５６５９０号公報に開示されるベルヌーイチャック、独国実用新案第２０２００６０１６８３３Ｕ１号明細書に開示されるベルヌーイ真空グリッパー等の原理を適用することができる。   The non-contact suction pad 16 blows air along the upper surface of the uppermost sheet among a plurality of sheets stacked in a stacked state on the sheet receiving portion 40, thereby causing the uppermost sheet. The non-contact suction pad 16 sucks the uppermost sheet by creating a negative pressure. More specifically, an air supply unit 24 is connected to the non-contact suction pad 16 via an air supply pipe 26, and when the air supply unit 24 supplies air to the air supply pipe 26, the non-contact suction pad 16. Air is sent to the. The internal configuration of such a non-contact suction pad 16 will be described. An air passage is formed inside the non-contact suction pad 16, and an air outlet is formed at the bottom of the non-contact suction pad 16. When the air supply unit 24 supplies air to the air supply pipe 26 and air is sent from the air supply pipe 26 to the non-contact suction pad 16, the air is formed inside the non-contact suction pad 16. It is jetted sideways through the air passage from the air outlet. In this way, when air is blown sideways from the air outlet provided at the bottom of the non-contact suction pad 16, negative pressure is applied to the space between the upper sheet and the bottom surface of the non-contact suction pad 16. As a result, the upper sheet is sucked by the non-contact suction pad 16. The principle of such a non-contact suction pad 16 is known as the Bernoulli effect. The above principle can be applied.

また、非接触吸引パッド１６は、積層状態で堆積される枚葉紙のうち最上層の枚葉紙を持ち上げるために利用されるため、各非接触吸引パッド１６に用いる空気の圧力は、各非接触吸引パッド１６のみで最上層の枚葉紙を持ち上げられる程度の大きさとすることが望ましい。   Further, since the non-contact suction pad 16 is used to lift the uppermost sheet among the sheets stacked in a stacked state, the pressure of air used for each non-contact suction pad 16 is different from each other. It is desirable that the size be such that the uppermost sheet can be lifted by the contact suction pad 16 alone.

図２に示すように、支持部１２の底面において吸着パッド１４が中央位置に設けられるとともに２つの非接触吸引パッド１６が吸着パッド１４の両側の位置に設けられている。このように、吸着パッド１４に対して対称となるよう２つの非接触吸引パッド１６が設けられている場合には、これらの吸着パッド１４および各非接触吸引パッド１６により枚葉紙をバランスよく持ち上げることができるようになる。   As shown in FIG. 2, the suction pad 14 is provided at the center position on the bottom surface of the support portion 12, and the two non-contact suction pads 16 are provided at positions on both sides of the suction pad 14. Thus, when the two non-contact suction pads 16 are provided so as to be symmetric with respect to the suction pad 14, the sheet is lifted in a balanced manner by the suction pads 14 and the non-contact suction pads 16. Will be able to.

次に、このような構成からなる枚葉紙持ち上げ装置１０の動作（具体的には、枚葉紙受け部４０に積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を持ち上げる動作）について図３乃至図６を用いて説明する。   Next, the operation of the sheet lifting apparatus 10 configured as described above (specifically, the uppermost sheet among a plurality of sheets stacked in a stacked state on the sheet receiving unit 40) The lifting operation will be described with reference to FIGS.

まず、図１に示す状態からピストン３０によりロッド部材３２を下向きに進出させ、図３に示すようにこのロッド部材３２の先端に取り付けられた支持部１２に支持されている吸着パッド１４を、枚葉紙受け部４０に積層状態で堆積される枚葉紙のうち最上層の枚葉紙の上面に接触させる。   First, the rod member 32 is advanced downward by the piston 30 from the state shown in FIG. 1, and the suction pad 14 supported by the support portion 12 attached to the tip of the rod member 32 as shown in FIG. The uppermost sheet of the sheets stacked on the sheet receiving unit 40 is brought into contact with the upper surface.

次に、図３に示す状態からピストン３０によりロッド部材３２を更に下向きに進出させ、図４に示すようにこのロッド部材３２の先端に取り付けられた支持部１２に支持されている非接触吸引パッド１６を、枚葉紙受け部４０に積層状態で堆積される枚葉紙のうち最上層の枚葉紙の上面に接触させる。上述のように、吸着パッド１４は伸縮自在であるため、支持部１２を図３に示す状態から更に下向きに移動させることにより、吸着パッド１４および非接触吸引パッド１６をそれぞれ最上層の枚葉紙に接触させることができる。   Next, the rod member 32 is further advanced downward by the piston 30 from the state shown in FIG. 3, and the non-contact suction pad supported by the support portion 12 attached to the tip of the rod member 32 as shown in FIG. 16 is brought into contact with the upper surface of the uppermost sheet among the sheets stacked in a stacked state on the sheet receiving portion 40. As described above, since the suction pad 14 is expandable and contractible, the suction pad 14 and the non-contact suction pad 16 are respectively moved to the uppermost sheet by moving the support 12 further downward from the state shown in FIG. Can be contacted.

そして、吸着パッド１４および各非接触吸引パッド１６がそれぞれ最上層の枚葉紙に接触すると、吸着パッド１４による最上層の枚葉紙の吸着動作および非接触吸引パッド１６による最上層の枚葉紙の吸引動作を開始する。具体的には、空気吸引部２０が空気吸引管２２から空気の吸引を行うことにより吸着パッド１４が周囲の空気を吸引するようにし、また、空気供給部２４が空気供給管２６に空気を供給することにより当該空気供給管２６から非接触吸引パッド１６に空気を送り、この非接触吸引パッド１６の空気噴出口から空気を最上層の枚葉紙に沿って横向きに噴出させる。ここで、吸着パッド１４により最上層の枚葉紙を吸着しているため、非接触吸引パッド１６により空気を横向きに噴出しても、最上層の枚葉紙の水平方向の位置ずれを防止できる。   When the suction pad 14 and each non-contact suction pad 16 come into contact with the uppermost sheet, respectively, the uppermost sheet is sucked by the suction pad 14 and the uppermost sheet by the non-contact suction pad 16. Start the suction operation. Specifically, the air suction unit 20 sucks air from the air suction tube 22 so that the suction pad 14 sucks ambient air, and the air supply unit 24 supplies air to the air supply tube 26. As a result, air is sent from the air supply pipe 26 to the non-contact suction pad 16, and air is blown sideways along the uppermost sheet from the air outlet of the non-contact suction pad 16. Here, since the uppermost sheet is adsorbed by the suction pad 14, even if air is blown sideways by the non-contact suction pad 16, it is possible to prevent the horizontal displacement of the uppermost sheet. .

図５に示すように、最上層の枚葉紙が吸着パッド１４により吸着されるとともに非接触吸引パッド１６により吸引されている状態で、ピストン３０によりロッド部材３２が上向きに移動させられると、このロッド部材３２の先端に取り付けられた支持部１２が上向きに移動する。上述のように、収縮していない状態における吸着パッド１４の下端の位置は非接触吸引パッド１６の下端の位置よりも低くなるように支持部１２に支持されているため、図４に示す状態からのロッド部材３２の上向きの移動量が、収縮していない状態における吸着パッド１４の下端の位置と非接触吸引パッド１６の下端の位置との間の距離以下であれば、吸着パッド１４が最上層の枚葉紙を上から２番目以降の枚葉紙に押し当てると同時に、非接触吸引パッド１６が最上層の枚葉紙の端部を持ち上げる状態になる。このことにより、最上層の枚葉紙の水平方向における位置ずれを防止し、しかも最上層の枚葉紙が凹形状に湾曲するため、最上層の枚葉紙の端部のみを非接触吸引パッド１６で持ち上げることができる。そして、図６に示すように、ピストン３０によりロッド部材３２が更に上向きに移動させられると、枚葉紙受け部４０からの１枚の枚葉紙の持ち上げ動作が完了する。   As shown in FIG. 5, when the rod member 32 is moved upward by the piston 30 while the uppermost sheet is being sucked by the suction pad 14 and sucked by the non-contact suction pad 16, The support part 12 attached to the tip of the rod member 32 moves upward. As described above, the position of the lower end of the suction pad 14 in the uncontracted state is supported by the support portion 12 so as to be lower than the position of the lower end of the non-contact suction pad 16, so that the state shown in FIG. If the amount of upward movement of the rod member 32 is equal to or less than the distance between the position of the lower end of the suction pad 14 and the position of the lower end of the non-contact suction pad 16 in the uncontracted state, the suction pad 14 is the uppermost layer. The non-contact suction pad 16 lifts the edge of the uppermost sheet at the same time as the sheet is pressed against the second and subsequent sheets from the top. This prevents horizontal displacement of the uppermost sheet, and the uppermost sheet is curved in a concave shape, so that only the end of the uppermost sheet is non-contact suction pad. 16 can be lifted. As shown in FIG. 6, when the rod member 32 is further moved upward by the piston 30, the operation of lifting one sheet from the sheet receiving portion 40 is completed.

以上のような構成からなる本実施の形態の枚葉紙持ち上げ装置１０によれば、吸着パッド１４（吸着部）は支持部１２の進退方向（具体的には、図１等における上下方向）に沿った方向に伸縮自在な部材から構成されており、収縮していない状態における吸着パッド１４の下端の位置が非接触吸引パッド１６（非接触吸引部）の下端の位置よりも低くなるよう吸着パッド１４および非接触吸引パッド１６が支持部１２に接続されている。このことにより、最上層の枚葉紙を持ち上げる際に、吸着パッド１４が最上層の枚葉紙を上から２番目の枚葉紙以降の枚葉紙に押し当てつつ、非接触吸引パッド１６により最上層の枚葉紙の他の個所を持ち上げることができるため、最上層の枚葉紙を持ち上げる際に水平方向における位置がずれてしまうことを防止でき、しかも最上層の枚葉紙が湾曲するため、最上層の枚葉紙を上から２番目以降の枚葉紙から分離することができる。   According to the sheet lifting apparatus 10 of the present embodiment having the above-described configuration, the suction pad 14 (suction part) is in the advancing / retreating direction of the support part 12 (specifically, the vertical direction in FIG. 1 and the like). The suction pad is composed of a member that can be expanded and contracted in the direction along the suction pad so that the lower end position of the suction pad 14 in a non-contracted state is lower than the lower end position of the non-contact suction pad 16 (non-contact suction part). 14 and the non-contact suction pad 16 are connected to the support portion 12. As a result, when lifting the uppermost sheet, the suction pad 14 presses the uppermost sheet against the second and subsequent sheets from the top while the non-contact suction pad 16 presses the uppermost sheet. Since the other parts of the uppermost sheet can be lifted, it is possible to prevent the horizontal position from shifting when the uppermost sheet is lifted, and the uppermost sheet is curved. Therefore, the uppermost sheet can be separated from the second and subsequent sheets from the top.

また、本実施の形態の枚葉紙持ち上げ装置１０においては、上述したように、吸着パッド１４を挟むよう２つの非接触吸引パッド１６が支持部１２に設けられていることにより、これらの吸着パッド１４および各非接触吸引パッド１６により枚葉紙をバランス良く持ち上げることができるようになる。なお、非接触吸引パッド１６の数は２つに限定されることはなく、３つ以上の非接触吸引パッド１６が吸着パッド１４に対して対称となるよう設けられている場合にも同様の作用効果を奏することができるようになる。   Further, in the sheet lifting device 10 of the present embodiment, as described above, the two non-contact suction pads 16 are provided on the support portion 12 so as to sandwich the suction pad 14, so that these suction pads are provided. 14 and each non-contact suction pad 16 can lift the sheet in a balanced manner. Note that the number of non-contact suction pads 16 is not limited to two, and the same effect can be obtained when three or more non-contact suction pads 16 are provided symmetrically with respect to the suction pads 14. An effect can be produced.

また、本実施の形態の枚葉紙持ち上げ装置１０においては、上述したように、吸着パッド１４は伸縮自在な蛇腹形状の部材から構成されている。このことにより、大型の外部機構等を必要としないシンプルな構成により、最上層の枚葉紙を湾曲させることができるようになる。   Further, in the sheet lifting device 10 of the present embodiment, as described above, the suction pad 14 is composed of an elastic bellows-shaped member. As a result, the uppermost sheet can be bent with a simple configuration that does not require a large external mechanism or the like.

なお、本実施の形態による枚葉紙持ち上げ装置は、上述したような態様に限定されることはなく、様々な変更を加えることができる。   Note that the sheet lifting device according to the present embodiment is not limited to the above-described mode, and various modifications can be made.

例えば、枚葉紙受け部４０において、積層状態で堆積される複数の枚葉紙の側端縁の位置決めを行う位置決め部として複数（具体的には、例えば８つ）の位置決めピンが設けられていてもよい。このように、位置決めピンが枚葉紙受け部４０に設けられている場合には、積層状態で堆積される複数の枚葉紙の位置決めを行うことができ、しかも、最上層の枚葉紙を持ち上げる際に上から２番目以降の枚葉紙の水平方向における位置ずれを防止できるようになる。   For example, in the sheet receiving unit 40, a plurality of (specifically, for example, eight) positioning pins are provided as positioning units for positioning the side edges of a plurality of sheets stacked in a stacked state. May be. As described above, when the positioning pins are provided in the sheet receiving portion 40, it is possible to position a plurality of sheets stacked in a stacked state, and the uppermost sheet is used. When lifting, it is possible to prevent the horizontal displacement of the second and subsequent sheets from the top.

また、支持部１２に保持される非接触吸引パッド１６の数は１つでもよい。この場合にも、最上層の枚葉紙を湾曲させて持ち上げることが可能であるため、最上層の枚葉紙を上から２番目以降の枚葉紙から分離させることができる。   Further, the number of non-contact suction pads 16 held by the support portion 12 may be one. Also in this case, since the uppermost sheet can be bent and lifted, the uppermost sheet can be separated from the second and subsequent sheets from the top.

また、吸着パッド１４を伸縮自在とするための構造は蛇腹形状に限定されることはない。例えば、吸着パッド１４をばね形状からなる部材とすることによっても伸縮自在性を持たせることが可能であるし、形状により伸縮自在性を持たせるのではなく、弾性を持つ部材により吸着パッド１４を構成することにより伸縮自在性を持たせてもよい。   Moreover, the structure for making the suction pad 14 extendable is not limited to the bellows shape. For example, the suction pad 14 can be made stretchable by making it a spring-shaped member, and the suction pad 14 can be made elastic by a member that does not give stretchability depending on the shape. You may give elasticity by comprising.

また、非接触吸引パッド１６から噴出される気体は空気に限定されることはない。例えば、ヘリウム等の空気以外の気体が用いられてもよい。   Further, the gas ejected from the non-contact suction pad 16 is not limited to air. For example, a gas other than air, such as helium, may be used.

１０ 枚葉紙持ち上げ装置
１２ 支持部
１４ 吸着パッド
１６ 非接触吸引パッド
２０ 空気吸引部
２２ 空気吸引管
２４ 空気供給部
２６ 空気供給管
３０ ピストン
３２ ロッド部材
４０ 枚葉紙受け部 DESCRIPTION OF SYMBOLS 10 Sheet | seat lifting apparatus 12 Support part 14 Adsorption pad 16 Non-contact suction pad 20 Air suction part 22 Air suction pipe 24 Air supply part 26 Air supply pipe 30 Piston 32 Rod member 40 Sheet paper receiving part

Claims (3)

積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を持ち上げる枚葉紙持ち上げ装置であって、
積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙を吸着するための吸着部と、
積層状態で堆積される複数の枚葉紙に対して進退可能となっており、前記吸着部を支持する支持部と、
前記支持部に設けられ、積層状態で堆積される複数の枚葉紙のうち最上層の枚葉紙の上面に沿って気体を噴出することにより、最上層の枚葉紙との間に負圧を生じさせることによって最上層の枚葉紙を吸引する非接触吸引部と、
を備え、
前記吸着部は前記支持部の進退方向に沿った方向に伸縮自在な部材から構成されており、
収縮していない状態における前記吸着部の下端の位置が前記非接触吸引部の下端の位置よりも低くなるよう前記吸着部および前記非接触吸引部が前記支持部に支持されている、枚葉紙持ち上げ装置。 A sheet lifting device that lifts the uppermost sheet among a plurality of sheets stacked in a stacked state,
An adsorption unit for adsorbing the uppermost sheet among a plurality of sheets stacked in a laminated state;
It is possible to advance and retreat with respect to a plurality of sheets deposited in a laminated state, and a support part that supports the suction part,
A negative pressure is provided between the uppermost sheet by ejecting gas along the upper surface of the uppermost sheet among the plurality of sheets that are provided in the support and are stacked in a stacked state. A non-contact suction part that sucks the uppermost sheet by causing
With
The adsorbing part is composed of a member that can expand and contract in a direction along the advancing / retreating direction of the support part,
A sheet of paper in which the suction part and the non-contact suction part are supported by the support part so that the lower end position of the suction part in a non-shrinked state is lower than the lower end position of the non-contact suction part Lifting device. 前記吸着部を挟むよう複数の前記非接触吸引部が前記支持部に設けられている、請求項１記載の枚葉紙持ち上げ装置。   The sheet lifting apparatus according to claim 1, wherein a plurality of the non-contact suction parts are provided on the support part so as to sandwich the suction part. 前記吸着部における伸縮自在な部材は蛇腹形状のものから構成されている、請求項１または２に記載の枚葉紙持ち上げ装置。   The sheet lifting device according to claim 1 or 2, wherein the stretchable member in the suction portion is formed of a bellows shape.
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