JP2003171018A - Separating method and separating apparatus for stacked work - Google Patents
Separating method and separating apparatus for stacked workInfo
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- JP2003171018A JP2003171018A JP2001372300A JP2001372300A JP2003171018A JP 2003171018 A JP2003171018 A JP 2003171018A JP 2001372300 A JP2001372300 A JP 2001372300A JP 2001372300 A JP2001372300 A JP 2001372300A JP 2003171018 A JP2003171018 A JP 2003171018A
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- work
- works
- stacked
- suction
- separating
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は積み重ねワークの分
離方法および分離装置、例えばセラミックユニットのよ
うな平板状ワークを１枚ずつ分離してピックアップする
方法および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 method and apparatus for separating stacked work pieces, for example, a method and a device for separating and picking up flat work pieces such as ceramic units one by one.
【０００２】[0002]
【従来の技術】従来、セラミック電子部品の製造工程に
おいて、焼成および研磨が終了したワーク（セラミック
ユニット）をワークガイドと呼ばれる筒状のケース内に
積み重ねて収容しておき、このワークガイトから１枚ず
つワークを吸引チャック装置などによって取り出し、所
望の位置へ搬送することがある。この場合、ワークガイ
ドの中で積み重ねられたワークは面同士が密着してお
り、吸引チャック等でピックアップする際、ワーク間が
一時的な真空状態になり、複数枚まとめてピックアップ
されることがある。2. Description of the Related Art Conventionally, in a process of manufacturing a ceramic electronic component, works (ceramic units) that have been fired and polished are stacked and accommodated in a cylindrical case called a work guide, and one piece is taken from the work guide. The work may be taken out by a suction chuck device or the like and conveyed to a desired position. In this case, the stacked work pieces in the work guide have their surfaces in close contact with each other, and when picking up with a suction chuck or the like, a temporary vacuum state is created between the work pieces, and a plurality of work pieces may be picked up together. .
【０００３】図４は複数枚まとめてピックアップした状
態を示し、Ｗはワーク、１０はワークガイド、１１は吸
引チャック、１２は突き上げ機構である。吸引チャック
１１の吸着力は最上段のワークＷ1 にのみ作用し、２番
目以後のワークＷ2 には、重力によりワーク間の空間を
広げようとする力が作用する。しかし、空間の広がりに
対してワーク間へのエアーの流れ込みが追いつかない場
合、ワーク間は一時的に雰囲気（大気圧）に比べて減圧
された状態となる。そこで、雰囲気圧力との圧力差によ
る上向きの力が、ワークＷ2 にかかる重力以上になる
と、まとめてピックアップされることになる。FIG. 4 shows a state in which a plurality of sheets are picked up collectively, W is a work, 10 is a work guide, 11 is a suction chuck, and 12 is a push-up mechanism. The suction force of the suction chuck 11 acts only on the uppermost workpiece W 1 , and the second and subsequent workpieces W 2 are subjected to the force of expanding the space between the workpieces due to gravity. However, when the flow of air between the works cannot catch up with the expansion of the space, the work is temporarily depressurized compared to the atmosphere (atmospheric pressure). Therefore, when the upward force due to the pressure difference from the atmospheric pressure exceeds the gravity applied to the work W 2, they are collectively picked up.
【０００４】まとめてピックアップされたワークＷ1 ，
Ｗ2 は、ワーク間にエアーが流れ込むことで雰囲気圧力
とワーク間圧力との差による力が減少し、ワークＷ2 に
かかる重力以下になることで分離する。しかし、分離時
間に比べてピックアップ時間が短い場合、複数のワーク
が一緒にワークガイド１０から取り出され、２番目以後
のワークＷ2 が搬送途中で落下して設備トラブルが発生
するという問題がある。The workpieces W 1 , which are picked up collectively,
W 2 is the force due to the difference between the atmospheric pressure and the workpiece between the pressure by air flows is reduced between the workpiece are separated by less than or equal to gravity applied to the workpiece W 2. However, when the pick-up time is shorter than the separation time, a plurality of works are taken out from the work guide 10 together, and there is a problem that the second and subsequent works W 2 drop during the conveyance and equipment trouble occurs.
【０００５】[0005]
【発明が解決しようとする課題】上記のようなまとめて
ピックアップされる不具合を解消するため、ピックアッ
プ作業を行う前に積み重ねたワークに横からエアーを吹
き付け、ワーク間にエアーを送り込むことで、密着した
ワークを分離する方法が考えられる。しかしながら、ワ
ークにエアーを吹き付ける方法では、積み重ねられたワ
ークが吹き飛んだり、バタついたりすることにより、ワ
ークの割れや欠けが発生しやすい。例えば、厚みが０．
１ｍｍ〜０．３５ｍｍ程度の薄肉なセラミック板の場
合、衝撃荷重に弱く、容易に割れてしまう。In order to eliminate the above-mentioned problems of being picked up in a lump, air is blown from the side to the stacked works before picking up work, and air is blown in between the works to bring about close contact. A method of separating the formed work can be considered. However, in the method in which air is blown onto the works, the stacked works are blown off or flapping, so that cracks or chips of the works are likely to occur. For example, the thickness is 0.
In the case of a thin ceramic plate having a thickness of about 1 mm to 0.35 mm, it is weak against an impact load and easily cracks.
【０００６】また、積み重ねられたワークにエアーを吹
き付けても、ワーク間へのエアーの入り込み方にバラツ
キが生じるため、全てのワークに対して有効に働く方法
ではない。また、２枚あるいはそれ以上のピックアップ
が発生した場合、エアーの吹き付けにより雰囲気圧力が
増圧され、より分離しにくい方向に作用してしまうとい
う問題があった。Further, even if air is blown to the stacked works, there is variation in how air enters between the works, and this is not a method that works effectively for all works. Further, when two or more pickups are generated, there is a problem that the atmospheric pressure is increased by blowing air, and the pickup acts in a direction in which separation is more difficult.
【０００７】そこで、本発明の目的は、ピックアップ時
におけるワークの吹き飛びやバタつきを抑え、ワークを
短時間で分離して１枚ずつ確実にピックアップできる積
み重ねワークの分離方法および分離装置を提供すること
にある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method and a device for separating stacked work pieces, in which the work pieces are prevented from being blown off and fluttered at the time of pickup, and the work pieces can be separated in a short time and picked up one by one reliably. It is in.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、請求項１に係る発明は、積み重ねられた複数の平板
状ワークから、最上段のワークのみを分離してピックア
ップする方法において、最上段のワークの上面を吸着し
て持ち上げる工程と、最上段のワークとともに２番目以
後のワークが持ち上げられた場合に、２番目以後のワー
クの下面側の雰囲気圧力を減圧し、最上段のワークと２
番目以後のワークとを分離する工程と、を有する積み重
ねワークの分離方法を提供する。In order to achieve the above object, the invention according to claim 1 is a method for separating and picking up only the uppermost work from a plurality of stacked flat plate-like works. And the process of adsorbing and lifting the upper surface of the work, and when the second and subsequent works are lifted together with the uppermost work, the atmospheric pressure on the lower surface side of the second and subsequent works is reduced to
And a step of separating the work from the th subsequent work, and a method of separating stacked works.
【０００９】また、請求項３に係る発明は、内部に複数
の平板状ワークを積み重ねて収容する筒状のワークガイ
ドと、上記ワークガイドの中に収容されたワークから、
最上段のワークの上面を吸着して持ち上げるピックアッ
プ手段と、所定高さ位置に設けられ、ワークガイド内の
雰囲気圧力を減圧するべく真空吸引手段と接続された吸
引穴と、最上段のワークとともに２番目以後のワークが
持ち上げられた場合に、上記吸引穴が２番目以後のワー
クの下面側に位置するように、積み重ねられたワークの
高さを調整する高さ調整機構とを備え、上記ピックアッ
プ手段によって最上段のワークをピックアップした際、
上記吸引穴からの真空吸引により２番目以後のワークの
下面側の雰囲気圧力を減圧し、最上段のワークと２番目
のワークとを分離することを特徴とする積み重ねワーク
の分離装置を提供する。According to the third aspect of the present invention, a cylindrical work guide for accommodating a plurality of flat plate-like works stacked therein and a work housed in the work guide are provided.
Pickup means for adsorbing and lifting the upper surface of the uppermost work, suction holes provided at a predetermined height position and connected to vacuum suction means for reducing the atmospheric pressure in the work guide, and the uppermost work 2 A height adjusting mechanism for adjusting the height of the stacked works such that the suction holes are located on the lower surface side of the second and subsequent works when the works after the second work are lifted. When picking up the topmost work by
Provided is a stacking work separation device characterized in that the atmospheric pressure on the lower surface side of the second and subsequent works is reduced by vacuum suction from the suction holes to separate the uppermost work and the second work.
【００１０】まずピックアップ手段を降下させ、最上段
のワークの上面を吸着して持ち上げる。この時、２枚目
以後のワークも最上段のワークと一緒にまとめてピック
アップされることがある。そこで、２番目以後のワーク
の下面側の雰囲気圧力を減圧する。減圧によってワーク
間圧力と雰囲気圧力との差を減少させ、２番目以後のワ
ークをその重力によって最上段のワークと分離させる。
その結果、最上段のワークと２番目以後のワークとを短
時間で分離でき、最上段のワークのみを確実にピックア
ップすることができる。本発明は上記のように、ピック
アップ時に雰囲気を減圧し、ワークが重力により分離す
るのを促進するものであるから、ワークの吹き飛びやバ
タつきによる割れや欠けを防止できる。また、本発明は
ワーク間に外部から力を加えて状態を変えるのではな
く、ピックアップ作業エリアの環境を変える（雰囲気圧
力を下げる）ため、すべてのワークに対して均等な効果
を与えることができ、安定した分離効果を得ることがで
きる。First, the pickup means is lowered, and the upper surface of the uppermost work is adsorbed and lifted. At this time, the second and subsequent works may be picked up together with the topmost work. Therefore, the atmospheric pressure on the lower surface side of the second and subsequent works is reduced. By reducing the pressure, the difference between the pressure between the works and the atmospheric pressure is reduced, and the second and subsequent works are separated from the work at the uppermost stage by the gravity.
As a result, the uppermost work and the second and subsequent works can be separated in a short time, and only the uppermost work can be reliably picked up. As described above, according to the present invention, the atmosphere is depressurized at the time of pickup to promote the separation of the work by gravity, so that the work can be prevented from being broken or cracked due to flapping. Further, according to the present invention, since the environment of the pickup work area is changed (atmosphere pressure is lowered), rather than changing the state by applying an external force between the works, an equal effect can be given to all works. A stable separation effect can be obtained.
【００１１】請求項２のように、最上段のワークの上面
を吸着保持して持ち上げる際、微小高さだけ持ち上げて
一旦停止させ、停止期間の間に２番目以後のワークの下
面側の雰囲気圧力を減圧するのが望ましい。ピックアッ
プ手段を連続的に上昇させながら分離させる方法もある
が、最上段のワークと一緒に持ち上げられた２番目以後
のワークの下面側の空間容積が増加するので、雰囲気圧
力の減圧に時間がかかる。そこで、ピックアップ手段を
一旦停止させ、その間に吸引すれば、容積が変化しない
ので雰囲気圧力を効果的に減圧でき、２番目以後のワー
クを最上段のワークから短時間で分離することができ
る。微小高さとは、短時間（例えば百ｍｓｅｃ〜数百ｍ
ｓｅｃ）に減圧雰囲気を達成できる高さを言い、例えば
１ｍｍ以下の高さがよい。When the upper surface of the uppermost work is sucked and held and lifted, it is lifted by a small height and temporarily stopped, and the atmospheric pressure on the lower surface side of the second and subsequent works during the stop period. It is desirable to reduce the pressure. There is also a method of separating the pickup means while continuously raising it, but it takes time to reduce the atmospheric pressure because the space volume on the lower surface side of the second and later workpieces lifted together with the uppermost workpiece increases. . Therefore, by temporarily stopping the pickup means and sucking during that time, the volume does not change, so the atmospheric pressure can be effectively reduced, and the second and subsequent works can be separated from the topmost work in a short time. The minute height means a short time (for example, 100 msec to several hundred m).
sec) is a height at which a reduced pressure atmosphere can be achieved, and for example, a height of 1 mm or less is preferable.
【００１２】請求項４のように、上記吸引穴を、ワーク
を間にしてその両側に対向して設けるのがよい。この場
合には、両側から真空吸引することで、雰囲気圧力を短
時間で減圧でき、しかも減圧領域のむらが発生しにく
い。According to a fourth aspect of the present invention, it is preferable that the suction holes are provided on opposite sides of the work with the work in between. In this case, by vacuum suction from both sides, the atmospheric pressure can be reduced in a short time, and unevenness in the reduced pressure region is unlikely to occur.
【００１３】[0013]
【発明の実施の形態】図１は、本発明にかかる積み重ね
ワークの分離装置の一例を示す。この実施例で使用する
ワークＷとは、例えば厚みが０．１ｍｍ〜０．３５ｍｍ
で、縦×横が３０ｍｍ×２０ｍｍ〜２０ｍｍ×３ｍｍ程
度の平板状セラミック焼成基板である。ワークＷの表裏
面は研磨されており、平滑である。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an example of a stacking work separating apparatus according to the present invention. The work W used in this example has a thickness of 0.1 mm to 0.35 mm, for example.
Then, it is a flat ceramic fired substrate having a length × width of about 30 mm × 20 mm to 20 mm × 3 mm. The front and back surfaces of the work W are polished and smooth.
【００１４】複数枚のワークＷがワークガイド１の中に
積み重ねて収容されている。この実施例のワークガイド
１は例えばカセットと呼ばれる筒形ケースであり、所定
位置に垂直に固定されている。ワークガイド１の所定高
さ位置には、対向する壁部にスリットなどからなる一対
の吸引穴２が設けられ、これら吸引穴２は真空ポンプな
どの真空吸引源３とソレノイドバルブ４を介して接続さ
れている。ソレノイドバルブ４を開閉制御することで、
ピックアップ作業エリア付近（例えばピックアップ前の
最上段のワークＷ1 付近）の雰囲気圧力を減圧するタイ
ミングを制御している。A plurality of works W are stacked and accommodated in the work guide 1. The work guide 1 of this embodiment is, for example, a cylindrical case called a cassette, and is vertically fixed at a predetermined position. At a predetermined height position of the work guide 1, a pair of suction holes 2 formed of slits or the like are provided in opposing wall portions, and these suction holes 2 are connected to a vacuum suction source 3 such as a vacuum pump via a solenoid valve 4. Has been done. By controlling the opening and closing of the solenoid valve 4,
The timing of reducing the atmospheric pressure in the vicinity of the pickup work area (for example, in the vicinity of the topmost work W 1 before pickup) is controlled.
【００１５】ワークガイド１の底部には、上下に昇降で
きる突き上げ機構５が設けられ、積み重ねられたワーク
Ｗの底面が突き上げ機構５によって支えられている。突
き上げ機構５は、吸引穴２が常にピックアップ作業エリ
ア付近に対応するように、積み重ねられたワークＷの高
さを調整している。At the bottom of the work guide 1, there is provided a push-up mechanism 5 which can be moved up and down, and the bottom surface of the stacked works W is supported by the push-up mechanism 5. The push-up mechanism 5 adjusts the height of the stacked works W so that the suction holes 2 always correspond to the vicinity of the pickup work area.
【００１６】上記ワークガイド１の上部には、ワークガ
イド１の中に収容されたワークＷから、最上段のワーク
Ｗ1 の上面を吸着して持ち上げる吸引チャック（ピック
アップ手段）６が設けられている。この吸引チャック６
は、公知のようにワークガイド１と図示しない作業部と
の間を往復移動し、ワークガイド１から１枚ずつワーク
Ｗを真空吸引によりピックアップし、作業部へプレース
するものである。On the upper part of the work guide 1, there is provided a suction chuck (pickup means) 6 for adsorbing and lifting the upper surface of the work W 1 in the uppermost stage from the work W accommodated in the work guide 1. . This suction chuck 6
In a known manner, the work guide 1 and a working unit (not shown) are reciprocally moved to pick up the works W one by one from the work guide 1 by vacuum suction and place them on the working unit.
【００１７】次に、上記構成よりなる分離装置の動作
を、図２を参照して説明する。（ａ）は、吸引穴２が最
上段のワークＷ1 付近に対応するように、複数のワーク
Ｗが積み重ねて収容されたワークガイド１の中に、吸引
チャック６が挿入され、最上段のワークＷ1 を吸着した
状態を示す。次に、（ｂ）のように、吸引チャック６を
上昇させると、ワークＷ間の密着力により複数枚（ここ
では２枚）のワークがまとめてピックアップされること
がある。そこで、ピックアップされた枚数に関係なく、
吸引チャック６をワークガイド１内で所定時間だけ一旦
停止させる。一旦停止時の高さｈは、短時間で雰囲気圧
力を減圧できるように、例えば１ｍｍ以下が望ましい。
次に、（ｃ）のように、一旦停止の期間中に吸引穴２か
ら真空吸引を行い、ピックアップ作業エリア付近の雰囲
気圧力を減圧する。一旦停止の期間中、２枚目のワーク
Ｗ2 と他のワークＷとの間に形成される空間は一定容積
であるから、吸引穴２から真空吸引を行うことで、この
空間を短時間で減圧できる。この減圧によって、最上段
のワークＷ1 と２枚目のワークＷ2 とが分離され、２枚
目のワークＷ2 は積み重ねられたワークＷの上に落下す
る。次に、（ｄ）のように２枚目のワークＷ2 が分離さ
れた後、吸引穴２からの吸引を停止し、吸引チャック６
は最上段のワークＷ1 を吸着したまま別の作業部へ搬送
する。これと同時に、突き上げ機構５がワーク１枚分だ
け上昇する。以後、上記の動作を積み重ねたワークＷが
なくなるまで繰り返す。Next, the operation of the separating device having the above structure will be described with reference to FIG. In (a), the suction chuck 6 is inserted into the work guide 1 in which a plurality of works W are stacked and accommodated so that the suction hole 2 corresponds to the vicinity of the work W 1 at the top, and the work at the top. The state where W 1 is adsorbed is shown. Next, as shown in (b), when the suction chuck 6 is raised, a plurality of (here, two) works may be collectively picked up due to the adhesion between the works W. Therefore, regardless of the number of picked up items,
The suction chuck 6 is temporarily stopped in the work guide 1 for a predetermined time. The height h at the time of stop is preferably 1 mm or less so that the atmospheric pressure can be reduced in a short time.
Next, as shown in (c), vacuum suction is performed from the suction holes 2 during the temporary stop period to reduce the atmospheric pressure near the pickup work area. Since the space formed between the second work W 2 and the other work W has a constant volume during the suspension, the vacuum suction is performed from the suction holes 2 so that this space can be saved in a short time. You can reduce the pressure. Due to this decompression, the uppermost work W 1 and the second work W 2 are separated, and the second work W 2 falls on the stacked work W. Next, as shown in (d), after the second work W 2 is separated, the suction from the suction hole 2 is stopped, and the suction chuck 6
Conveys the uppermost work W 1 to another working unit while adsorbing the work W 1 . At the same time, the push-up mechanism 5 moves up by one work piece. After that, the above-described operation is repeated until there is no work W accumulated.
【００１８】図３は、雰囲気圧力の減圧を行わない場合
と減圧を行った場合とのピックアップ時におけるワーク
間圧力の時間変化を示す。図において、Ｐは時間ととも
に変化するワーク間圧力、ＰL はワーク間圧力の初期
値、Ｐ0 は大気圧、ＰV は分離吸引圧、ＰW はワークの
重力と釣り合う圧力である。したがって、Ｐ0 −ＰW は
減圧がない場合に２枚のワークが分離する圧力、ＰV −
ＰW は減圧がある場合に２枚のワークが分離する圧力を
表す。ｔ1 は減圧を行った時の分離時間、ｔ2 は減圧を
行わない時の分離時間である。図３から明らかなよう
に、ワーク間圧力Ｐが初期のワーク間圧力ＰL である時
刻Ｔａでワーク間へのエアーの流れ込みが開始するが、
分離吸引（減圧）を行わない場合には、ワーク間圧力Ｐ
と重力による圧力ＰW との和が大気圧Ｐ0 と等しくなる
時点Ｔｂ、つまりＰがＰ0 −ＰW と等しくなるまでワー
クＷ1 とＷ2 は分離しない。すなわち、分離時間がｔ2
かかることになる。これに対し、分離吸引（減圧）を行
うと、大気圧による２枚目のワークＷ2 の持ち上げ力が
減圧によって低下するので、ワーク間圧力Ｐと重力によ
る圧力ＰW との和が減圧された雰囲気圧力ＰV と等しく
なる時点Ｔｃ、つまりＰがＰV −ＰWになった時点で分
離する。すなわち、分離時間はｔ1 で済むことになる。
そのため、分離吸引を行わない場合に比べて分離時間を
大幅に短縮できる。FIG. 3 shows changes with time in the pressure between the workpieces at the time of pickup when the atmospheric pressure is not reduced and when the atmospheric pressure is reduced. In the figure, P is the pressure between the works that changes with time, P L is the initial value of the pressure between the works, P 0 is the atmospheric pressure, P V is the separation suction pressure, and P W is the pressure balanced with the gravity of the work. Therefore, P 0 −P W is the pressure at which two workpieces are separated when there is no pressure reduction, P V −
P W represents the pressure at which two works are separated when there is a reduced pressure. t 1 is the separation time when the pressure is reduced, and t 2 is the separation time when the pressure is not reduced. As is clear from FIG. 3, the flow of air between the works starts at time Ta when the work pressure P is the initial work pressure P L.
If separation suction (decompression) is not performed, pressure between workpieces P
The workpieces W 1 and W 2 are not separated until the time point Tb at which the sum of the pressure due to gravity and the pressure P W becomes equal to the atmospheric pressure P 0 , that is, P becomes equal to P 0 −P W. That is, the separation time is t 2
This will be the case. On the other hand, when the separation suction (decompression) is performed, the lifting force of the second work W 2 due to the atmospheric pressure is reduced due to the pressure reduction, so the sum of the pressure P between the works and the pressure P W due to gravity is reduced. Separation is performed at a time point Tc when the atmospheric pressure becomes equal to P V , that is, when P becomes P V −P W. That is, the separation time is t 1 .
Therefore, the separation time can be significantly shortened as compared with the case where the separation suction is not performed.
【００１９】本発明者の実験によれば、１枚の重量が
１．６×１０-3（Ｎ）、寸法が２０ｍｍ×３ｍｍ×０．
１５ｍｍのワークＷを使用し、ピックアップ作業を行っ
たところ、分離吸引を行わない場合には、分離時間ｔ2
は１０回平均で約３５０ｍｓｅｃ要していたが、分離吸
引圧ＰV を−５０ｋＰａとした場合、分離時間ｔ1 を１
０回平均で約３０ｍｓｅｃに短縮できた。また、ピック
アップされるワーク（セラミック基板）に割れや欠けな
どの不良が殆ど発生しなかった。According to experiments conducted by the present inventor, one sheet has a weight of 1.6 × 10 −3 (N) and a size of 20 mm × 3 mm × 0.
When a picking operation was performed using a work W of 15 mm, when separation suction was not performed, separation time t 2
Takes about 350 msec on average 10 times, but when the separation suction pressure P V is −50 kPa, the separation time t 1 is 1
It was reduced to about 30 msec on average 0 times. In addition, the workpiece (ceramic substrate) to be picked up had almost no defects such as cracks and chips.
【００２０】なお、ワークの分離時間ｔ1 は、ワーク間
の初期圧力ＰL 、雰囲気圧力、ワークの形状やサイズに
よって変動する。ワークＷは薄肉なセラミック基板に限
るものではなく、半導体素子やリードフレームなどの金
属板など如何なる部品であってもよい。特に、積み重ね
た状態で、隣合う部品と密着しやすい表面が平滑な部品
がよい。また、吸引穴の位置および数は、対向する２箇
所に限らず、周囲４箇所に設けてもよい。円板状のワー
クの場合には、３箇所あるいはそれ以上であってもよ
い。The work separation time t 1 varies depending on the initial pressure P L between the works, the atmospheric pressure, and the shape and size of the work. The work W is not limited to a thin ceramic substrate, and may be any component such as a semiconductor element or a metal plate such as a lead frame. In particular, it is preferable to use a component having a smooth surface, which is easy to be brought into close contact with an adjacent component in a stacked state. Further, the positions and the number of the suction holes are not limited to two opposite positions, but may be provided at four peripheral positions. In the case of a disk-shaped work, it may be three or more.
【００２１】上記実施例では、筒状のワークガイドが一
定位置に固定され、ワークガイドの底部に昇降可能に配
置された突き上げ機構によってワークＷを上昇させるよ
うにしたが、有底のワークガイドにワークＷを積み重ね
て収容し、ワークガイド全体を上昇させてもよい。この
場合には、吸引穴をワークガイドと別体の吸引ノズルに
設け、ワークガイドに縦方向のスリット溝を設け、この
スリット溝に臨むように吸引ノズルを一定高さ位置に設
置すればよい。吸引ノズルの吸引力はスリット溝を介し
てワークガイド内のワークに作用する。また、上記実施
例では、吸引チャックにより最上段のワークを吸着し、
所定位置まで上昇した時に一旦停止させ、停止期間中に
吸引穴から真空吸引を行って雰囲気圧力を減圧するよう
にしたが、吸引チャックを低速度で連続的に上昇させな
がら雰囲気圧力を減圧しても、多少の時間増にはなる
が、ほぼ同様な分離効果を発揮することができる。In the above-described embodiment, the cylindrical work guide is fixed at a fixed position, and the work W is lifted by the push-up mechanism which is vertically movable at the bottom of the work guide. The works W may be stacked and accommodated and the whole work guide may be raised. In this case, the suction hole may be provided in a suction nozzle that is separate from the work guide, the work guide may be provided with a vertical slit groove, and the suction nozzle may be installed at a constant height position so as to face the slit groove. The suction force of the suction nozzle acts on the work in the work guide through the slit groove. Further, in the above-mentioned embodiment, the uppermost work is sucked by the suction chuck,
When the temperature rises to a predetermined position, it is temporarily stopped, and during the stop period, vacuum suction is performed from the suction hole to reduce the atmospheric pressure, but the atmospheric pressure is reduced while continuously raising the suction chuck at a low speed. Also, although it takes some time, almost the same separation effect can be exhibited.
【００２２】[0022]
【発明の効果】以上の説明で明らかなように、請求項１
に係る発明によれば、ピックアップ手段によって最上段
のワークの上面を吸着して持ち上げる際、最上段のワー
クとともに２番目以後のワークが一緒に持ち上げられた
場合に、２番目以後のワークの下面側の雰囲気圧力を減
圧し、最上段のワークと２番目以後のワークとを分離す
るようにしたので、短時間でワークを分離でき、最上段
のワークのみを確実にピックアップすることができる。
また、本発明ではピックアップ時に雰囲気を減圧し、ワ
ークが重力により分離するのを促進するものであるか
ら、ワークには無理な負荷を与えずに済み、ワークの吹
き飛びやバタつきによる割れや欠けを防止することがで
きる。As is apparent from the above description, claim 1
According to the invention, when the upper surface of the uppermost work is sucked and lifted by the pick-up means, when the second and subsequent works are lifted together with the uppermost work, the lower surface side of the second and subsequent works Since the atmosphere pressure is reduced to separate the uppermost work and the second and subsequent works, the works can be separated in a short time and only the uppermost work can be reliably picked up.
Further, in the present invention, the atmosphere is depressurized at the time of pick-up, and the work is promoted to be separated by gravity. Therefore, it is not necessary to apply an unreasonable load to the work, and cracks and chips due to blown-off or flapping of the work Can be prevented.
【図１】本発明にかかる分離装置の一例の断面図であ
る。FIG. 1 is a cross-sectional view of an example of a separation device according to the present invention.
【図２】図１に示す分離装置の動作を示す工程図であ
る。FIG. 2 is a process diagram showing the operation of the separation device shown in FIG.
【図３】分離動作におけるワーク間圧力の時間変化図で
ある。FIG. 3 is a time change diagram of inter-workpiece pressure in the separating operation.
【図４】従来のピックアップ装置の断面図である。FIG. 4 is a sectional view of a conventional pickup device.
Ｗ ワーク １ ワークガイド ２ 吸引穴 ３ 真空吸引源 ４ ソレノイドバルブ ５ 突き上げ機構（高さ調整機構） ６ 吸引チャック（ピックアップ手段） W work 1 Work guide 2 suction holes 3 Vacuum suction source 4 solenoid valve 5 Push-up mechanism (height adjustment mechanism) 6 Suction chuck (pickup means)
Claims (4)
最上段のワークのみを分離してピックアップする方法に
おいて、最上段のワークの上面を吸着して持ち上げる工
程と、最上段のワークとともに２番目以後のワークが持
ち上げられた場合に、２番目以後のワークの下面側の雰
囲気圧力を減圧し、最上段のワークと２番目以後のワー
クとを分離する工程と、を有する積み重ねワークの分離
方法。1. From a plurality of stacked flat plate-like workpieces,
In the method of separating and picking up only the uppermost work, a step of sucking and lifting the upper surface of the uppermost work, and when the second and subsequent works are lifted together with the uppermost work, the second and subsequent works The method for separating stacked work pieces, comprising the step of reducing the atmospheric pressure on the lower surface side to separate the uppermost work piece and the second and subsequent work pieces.
上げる際、微小高さだけ持ち上げて一旦停止させ、停止
期間の間に２番目以後のワークの下面側の雰囲気圧力を
減圧することを特徴とする請求項１に記載の積み重ねワ
ークの分離方法。2. When the upper surface of the uppermost work is suction-held and lifted, it is lifted by a minute height and temporarily stopped, and the atmospheric pressure on the lower surface side of the second and subsequent works is reduced during the stop period. The method for separating stacked workpieces according to claim 1, wherein the stacked workpieces are separated.
容する筒状のワークガイドと、上記ワークガイドの中に
収容されたワークから、最上段のワークの上面を吸着し
て持ち上げるピックアップ手段と、所定高さ位置に設け
られ、ワークガイド内の雰囲気圧力を減圧するべく真空
吸引手段と接続された吸引穴と、最上段のワークととも
に２番目以後のワークが持ち上げられた場合に、上記吸
引穴が２番目以後のワークの下面側に位置するように、
積み重ねられたワークの高さを調整する高さ調整機構と
を備え、上記ピックアップ手段によって最上段のワーク
をピックアップした際、上記吸引穴からの真空吸引によ
り２番目以後のワークの下面側の雰囲気圧力を減圧し、
最上段のワークと２番目のワークとを分離することを特
徴とする積み重ねワークの分離装置。3. A cylindrical work guide for accommodating and accommodating a plurality of flat plate-like works therein, and pickup means for adsorbing and lifting the upper surface of the uppermost work from the works accommodated in the work guide. , A suction hole provided at a predetermined height position and connected to a vacuum suction means for reducing the atmospheric pressure in the work guide, and the suction hole when the second and subsequent works are lifted together with the uppermost work. So that is located on the lower surface side of the second and subsequent workpieces,
A height adjusting mechanism for adjusting the height of the stacked works, and when the uppermost work is picked up by the pickup means, the atmospheric pressure on the lower surface side of the second and subsequent works due to vacuum suction from the suction holes. Depressurize
An apparatus for separating stacked works, characterized by separating the uppermost work and the second work.
に対向して設けられていることを特徴とする請求項３に
記載の積み重ねワークの分離装置。4. The apparatus for separating stacked work pieces according to claim 3, wherein the suction holes are provided on opposite sides of the work piece with the work pieces in between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001372300A JP3867564B2 (en) | 2001-12-06 | 2001-12-06 | Method and apparatus for separating stacked workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001372300A JP3867564B2 (en) | 2001-12-06 | 2001-12-06 | Method and apparatus for separating stacked workpieces |
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| Publication Number | Publication Date |
|---|---|
| JP2003171018A true JP2003171018A (en) | 2003-06-17 |
| JP3867564B2 JP3867564B2 (en) | 2007-01-10 |
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|---|---|---|---|
| JP2001372300A Expired - Fee Related JP3867564B2 (en) | 2001-12-06 | 2001-12-06 | Method and apparatus for separating stacked workpieces |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008529910A (en) * | 2005-02-18 | 2008-08-07 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | Apparatus and method for shrink wrapping containers |
| CN108625047A (en) * | 2018-06-22 | 2018-10-09 | 苏州澳拓美盛自动化设备有限公司 | Lockstitch button holder work station |
| CN112193870A (en) * | 2020-09-27 | 2021-01-08 | 重庆三创印刷有限公司 | Printing device with anti-jamming function |
-
2001
- 2001-12-06 JP JP2001372300A patent/JP3867564B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008529910A (en) * | 2005-02-18 | 2008-08-07 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | Apparatus and method for shrink wrapping containers |
| CN108625047A (en) * | 2018-06-22 | 2018-10-09 | 苏州澳拓美盛自动化设备有限公司 | Lockstitch button holder work station |
| CN108625047B (en) * | 2018-06-22 | 2023-11-28 | 苏州澳拓美盛自动化设备有限公司 | Buttonholing machine workstation |
| CN112193870A (en) * | 2020-09-27 | 2021-01-08 | 重庆三创印刷有限公司 | Printing device with anti-jamming function |
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| Publication number | Publication date |
|---|---|
| JP3867564B2 (en) | 2007-01-10 |
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