JPS61280625A - Foil feeding device - Google Patents

Abstract

PURPOSE:To cut securely a foil in the prescribed length and to dispence with vacuum chucks and so forth by a method wherein a foil feeding device is made into a constitution that the foil, which is led out of the foil spool and has the prescribed length, is fed by the first chucks, is cut by the cutter, that foil is placed on a matter to be placed, then when the first chucks are made to slide in the released state, a new foil is fixedly held between the second chucks and the second chucks are on standby at the next step. CONSTITUTION:Firstly, the point of a foil 2 is led out of a spool 1 and first chucks 8 and 8 pinch the foil 2 between them as shown in an (a) and the chucks 8 and 8 are made to shift from a position A to the right direction by the driving source. At this time, the foil 2 is made to shift from a position D to the right direction. Then, when the first chucks 8 and 8 are made to shift to a position C to be shown in a (b) and the point of the foil 2 reaches a position under a cutter 13, the cutter 13 is made to descend and the edge part 35 of the point of the cutter 35 presses the foil 2 at an position E, and at the same time, the first chucks 8 and 8 are made to back to a position B to be shown in a (c). Hereby the foil 2 is securely cut by the tensile forces of the cutter 13 and the first chucks 8 and 8 in a length between the position E and a position F, that is, in the prescribed length. By this cutting, the pinching force of the first chucks 8 and 8 is released and the first chucks 8 and 8 are made to back from the position B to the position A to be shown in a (d).

Description

【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、金属箔等の箔ｗ　Ｑ−ルに巻回された箔スプ
ールから所定長さずつ切断して被載置物に載置するため
の箔送り装置に係わり、特に前記所定長さに切断した箔
を吸着手段を用いることなく前記被載置物に対し載置す
る同送り装置に関する。[Detailed Description of the Invention] (a) Industrial Application Field The present invention is directed to cutting a foil spool such as a metal foil into predetermined lengths from a foil spool wound around a foil w Q-le and placing it on an object. The present invention relates to a foil feeding device for placing the foil cut into the predetermined length on the object without using suction means.

（ロ）従来の技術 一般に半導体の組立装置として、リードフレーム上に金
箔又は半田箔を載置し、その上に半導体ベレットを載せ
る場合、前記リードフレームの下方から加熱装置によっ
て予め加熱してｉき、前記箔を所定長さに切断したもの
を吸着手段、例えば真空チャックにて吸着後前記リード
フレーム上に載置し、前記箔が溶解した状態において、
半導体ペレットを搭載すると、該ペレットは前記リード
フレームに一体化され、前記加熱手段から前記リードフ
レームを移動させて冷却すると、前記ベレットはリード
フレームに固着される。(B) Prior art Generally, in semiconductor assembly equipment, when gold foil or solder foil is placed on a lead frame and a semiconductor pellet is placed on top of it, the lead frame is heated in advance by a heating device from below. , the foil is cut into a predetermined length and is adsorbed by a suction means, for example, a vacuum chuck, and then placed on the lead frame, and in a state where the foil is melted,
When a semiconductor pellet is mounted, the pellet is integrated into the lead frame, and when the lead frame is removed from the heating means and cooled, the pellet is fixed to the lead frame.

その−例が株式会社新川製のダイボンダー、ＨＩＧＨ−
８ＰＥＥＤ　　ＦＵＬＬ　　ＡＵＴＯＭＡＴＩＣＤＩＥ
　　ＢＯＮＤＥＲモデルＳＰＭ−ＦＡ−ＴＣ−５に添付
されている取扱説明書の図面（ＤＯＯ９１００）に記載
された前述の構成が挙げられる。An example of this is the die bonder HIGH manufactured by Shinkawa Co., Ltd.
8PEED FULL AUTOMATIC DIE
Examples include the above-described configuration described in the drawing (DOO9100) of the instruction manual attached to BONDER model SPM-FA-TC-5.

（ハ）発明が解決しようとする問題点 前述の従来技術によれば、先ず吸着手段としての真空チ
ャックを要し、第２に前記箔の送りに際しては箔フィー
ドローラーを必要とし、いずれも駆動機構が複雑となる
欠点があり、本発明の箔送り装置は前記欠点を除去した
新規な箔送り装置を提供するものである。(c) Problems to be Solved by the Invention According to the above-mentioned prior art, firstly, a vacuum chuck is required as a suction means, and secondly, a foil feed roller is required for feeding the foil, and both of them require a drive mechanism. However, the foil feeding device of the present invention provides a novel foil feeding device that eliminates the above drawback.

に）問題点を解決するための手段 本発明は、箔スプールから導出された所定長さの箔を第
１のチャックにて送りカッターにて切断し、同時に前記
第１のチャックによる引張りが行え、確実に切断作業が
行え、これにより被載置物に対して所定の長さに切断さ
れた箔が載置され、次に前記第１のチャックを解放した
状態でスライドさせるとき前記第２のチャックにて箔を
固定保持し、次のステップに対して待機状態となす構成
である。B) Means for Solving the Problems The present invention provides a method for cutting a predetermined length of foil derived from a foil spool with a feed cutter using a first chuck, and simultaneously pulling the foil using the first chuck. The cutting operation can be performed reliably, so that the foil cut to a predetermined length is placed on the object to be placed, and then when the first chuck is released and slid, the foil is placed on the second chuck. This configuration holds the foil fixed and waits for the next step.

（ホ）作用 本発明は、前記構成により、箔を所定長さに確実に切断
でき、該所定長さに切断された箔は下方に落とすことに
より被載置物、例えば半導体のリードフレーム上に載置
し得、従来の吸着手段としての真空チャック等は不要と
なる。(E) Function The present invention has the above-mentioned configuration, which allows the foil to be reliably cut into a predetermined length, and the foil cut into the predetermined length is placed on an object to be placed, for example, a lead frame of a semiconductor, by dropping it downward. This eliminates the need for conventional vacuum chucks and the like as suction means.

（へ）実施例 図面に従って本発明を説明すると、第１図は本発明の箔
送り装置の正面図、第２図ビ）〜に）は同装置の動作説
明図、第３図（イ）（ロ）は同装置に用いるカッターの
一例を示す側面図及び平面図を示す。(f) The present invention will be explained according to the drawings. Fig. 1 is a front view of the foil feeding device of the present invention, Fig. 2 (b) to (b) to (b) are explanatory diagrams of the operation of the same device, and Fig. 3 (a) ( B) shows a side view and a plan view showing an example of a cutter used in the device.

図面において、（１）は長尺の帯状体になした箔（２）
が巻回された箔スプール、（３）はガイドローラ、（４
）（５）は箔エンド検出部を構成する発光素子及び受光
素子、（６）＋６）はスリット（７）（力を有する光ガ
イド板、（８）（８１は第１のチャック、（９）（９）
は前記第１のチャックを図面の左右方向に往復運動を案
内する第１のガイド部、（１Ｇは第２のチャック、Ｑｌ
）αυは該第２のチャックの上下運動を案内する第２の
ガイド部、（Ｉ２α２は前記箔の右方向への引出しを案
内する固定箔ガイド、α暗まカッター、α佃４は前記カ
ッターの上下動を案内する第３のガイド部、α５αｅ←
７）顛は各々前記第１チヤツクの上下移動及び左右往復
移動、第２のチャックの上下移動、カッターの上下移動
のための第１、第２、第３及び第４の駆動源、σ■■は
各々前記発光素子用の第１の電源及び受光素子に接続さ
れた制御部でＣυは前記各構成素子を搭載した機構部搭
載板、（社）は第２の電源＠に接続され上方に対象物と
してのリードフレーム等の被載置物Ｑ４が載せられてい
るヒートブロック、（至）は前記機構部搭載板を首振り
させるための回動カム、翰はカム当接ローラー、翰翰は
各々前記回動カム（ハ）及びカムレバー＠を回動自在に
支持する支軸、（至）６υは各々前記支軸＠（ハ）が取
付けられた支持脚、Ｇ３２は基部、Ｇ３は前記機構部搭
載板の首振り角度を規制するストッパー、（ロ）は前記
機構部搭載板を時計方向に付勢するバネを示す。In the drawing, (1) is a long strip of foil (2)
(3) is a guide roller, (4) is a foil spool wound with
)(5) is the light emitting element and light receiving element constituting the foil end detection section, (6)+6) is the slit (7) (light guide plate with force, (8) (81 is the first chuck, (9) (9)
is a first guide portion that guides the first chuck in reciprocating motion in the left-right direction of the drawing; (1G is the second chuck; Ql
)αυ is a second guide part that guides the vertical movement of the second chuck, (I2α2 is a fixed foil guide that guides the pulling out of the foil to the right, α dark cutter, and α Tsukuda 4 is a part of the cutter). Third guide part that guides vertical movement, α5αe←
7) The structure includes first, second, third and fourth driving sources for vertically moving and horizontally reciprocating the first chuck, vertically moving the second chuck, and vertically moving the cutter, respectively. are the control units connected to the first power source for the light-emitting element and the light-receiving element, Cυ is the mechanism mounting plate on which each of the constituent elements is mounted, and Cυ is connected to the second power source @, and the target is shown above. A heat block on which an object Q4 such as a lead frame is mounted, (to) a rotary cam for swinging the mechanism mounting plate, a cam contact roller, and a cam contact roller, respectively. A support shaft that rotatably supports the rotating cam (C) and the cam lever @, (to) 6υ is the support leg to which the support shaft @ (C) is attached, G32 is the base, and G3 is the mechanism mounting plate. A stopper restricts the swing angle of the mechanism, and (b) represents a spring that biases the mechanism mounting plate clockwise.

金箔スプール（１）から箔（２）の先端を引出して操作
者が第２図（イ）に示すように、第１のチャック＋８）
（８）は箔（２）を挾持した状態で、Ａの位置から駆動
源により図面右方に移動を開始する。このとき箔（２）
はＤ位置から図面右方に向って移動する。（第２図（イ
）） 次に前記第１のチャック（８）（８）が第２図（ロ）に
示すＣ位置まで右方に移動し、箔（２）の先端がカッタ
ー峙の下位置に達すると、カッターα騰は上方から下方
の箔（２）に向って下降し、Ｅ位置にてカッター住■の
先端のエツジ部（ト）が箔（２）に上方から押圧すると
共に第１のチャック（８１（８）を左方に向って移動さ
せ、第２図（ハ）に示すＢ位置まで後退させる。The operator pulls out the tip of the foil (2) from the gold foil spool (1) and attaches it to the first chuck +8) as shown in Figure 2 (a).
(8) starts moving rightward in the drawing from position A by a drive source while holding foil (2) between them. At this time foil (2)
moves from position D toward the right in the drawing. (Figure 2 (A)) Next, the first chuck (8) (8) moves to the right to position C shown in Figure 2 (B), and the tip of the foil (2) is below the cutter. When reaching the position, the cutter α descends from above toward the foil (2) below, and at the E position, the edge part (T) at the tip of the cutter presses against the foil (2) from above and the second The chuck (81(8)) of No. 1 is moved leftward and retracted to position B shown in FIG. 2(C).

前記第１のチャック（８）（８）のＣ位置からＢ位置へ
の後退により、前記箔（２）はＥ−Ｆ聞分即ち所定の長
さｌに、確実に前記カッター０及び第１のチャック（８
）（８）の引張り力によって切断される。The retraction of the first chuck (8) from the C position to the B position ensures that the foil (2) is attached to the cutter 0 and the first Chuck (8
) (8) is cut by the tensile force.

前記切断作業が終了すると、前記第１のチャック（８）
＋８）の挾持力を解除し、前記Ｂ位置から第２図に）に
示すＡ位置まで後退させると次の切断作業の待機状態と
なる。When the cutting operation is finished, the first chuck (8)
When the clamping force of +8) is released and the tool is moved back from the B position to the A position shown in FIG. 2), it becomes ready for the next cutting operation.

ここで前記第１のチャック（８）（８）のＢ位置から挾
持力解除時待機位置としての人位置までの後退移動のと
き、第２のチャック翰を固定箔ガイドαａに対して上昇
させ、箔（２）の後退を防止するため挾持しておく。前
述の切断工程において、被載置物Ｃ４に前記所定の長さ
に箔（２）ヲ切断するために押しつけ、該被載置物（２
）に対し、前記所定の長さにした箔片国ヲできるだけ密
着させるために、前記支軸＠を時計方向に回転させ、一
方前記箔（２）の供給工程では箔（２）の先端が被載置
物（５）に触れて曲げられるのを防止するため、反時計
方向に回転させておく。斯る回動に対しては駆動源とし
てモータあるいはシリンダを用いれば良い。Here, when the first chuck (8) (8) is moved backward from the B position to the human position as the standby position when the clamping force is released, the second chuck wing is raised relative to the fixed foil guide αa, Hold the foil (2) in place to prevent it from retreating. In the above-mentioned cutting step, the foil (2) is pressed against the object C4 to cut it to the predetermined length, and
), the spindle @ is rotated clockwise in order to bring the foil pieces of the predetermined length into close contact with each other as much as possible. Rotate it counterclockwise to prevent it from touching and bending the placed object (5). For such rotation, a motor or a cylinder may be used as a driving source.

前記箔スプール（１）に巻回された箔（２）がなくなっ
て、発光素子（４）からガイド孔（６）（力を通して受
光素子（５）に到達した光によって検出されると、前記
第１のチャック＋８）（８）及び第２のチャック（１１
ｍに対する駆動源への付勢は停止し、前記箔（２）が被
載置物（財）への所定量の載置作業が終了すると、前記
箔エンド検出部の受光素子（５）からの検出出力により
制御部（イ）が動作し、前記駆動源の付勢停止と共に警
報、例えば警報表示としてランプの点灯又は点滅、警報
音の発生を行えば、前記箔の終了が操作者（オペレータ
）に報知でき、該操作者は箔の補給又は、全作業の終了
として、箔送り装置の作動全体夕停止させるため、電源
スィッチをオフにする。When the foil (2) wound around the foil spool (1) runs out and is detected by the light reaching the light receiving element (5) through the guide hole (6) (force) from the light emitting element (4), the light emitting element (4) reaches the light receiving element (5). 1 chuck + 8) (8) and the second chuck (11
The energization of the drive source for m is stopped, and when the work of placing a predetermined amount of the foil (2) on the object (goods) is completed, the light receiving element (5) of the foil end detection section detects The control unit (a) is activated by the output, and the energization of the drive source is stopped and an alarm is generated, for example, by lighting or flashing a lamp as an alarm display, or by emitting an alarm sound, and the operator is informed of the termination of the foil. The operator turns off the power switch to stop the entire operation of the foil feeding device, either to replenish the foil or to complete the entire operation.

第３図は前記箔送り装置に用いるカッターの一例を示し
、その側面を示す第３図（イ）で、前記エツジ部（ハ）
の角度（（資）を所定の大きさに設定することによって
、箔（２）に対する切断角度（α）が定まり、又第３図
（イ）に示すエツジ部（ハ）の長さにｄ）を定めれば、
被載置物（財）Ｋ対して箔（２）を切断する条件が決定
される。即ち前記角度（ψを大きくすると、エツジ部（
ハ）の箔（２）に対する挿入は鋭く、従って箔（２）す
通して被載置物■へのノツチとしての傷は狭となり、一
方これとは逆に前記角度（Ｑり７ｆｒ：小さにすると、
エツジ部（至）の箔（２）に対する挿入は直角に近くな
り、従って箔（２）夕通して前記被載置物（２）へのノ
ツチとしての傷は幅広となる。FIG. 3 shows an example of a cutter used in the foil feeding device, and FIG. 3 (A) shows the side view, and FIG.
By setting the angle (()) to a predetermined size, the cutting angle (α) with respect to the foil (2) is determined, and the length of the edge portion (c) shown in FIG. If we define
Conditions for cutting the foil (2) for the placed object (goods) K are determined. In other words, when the angle (ψ) is increased, the edge portion (
The insertion of C) into the foil (2) is sharp, and therefore the notch that passes through the foil (2) to the object ■ becomes narrow.On the other hand, if the angle (Q) is made smaller, ,
The insertion of the edge portion (to) into the foil (2) is close to a right angle, so that the notch formed in the foil (2) and the object to be placed (2) becomes wide.

従って前記箔及び被載置物の材質に対して、前記角度（
Ｃ４及びエツジ部（至）の長さにｔｔ）は適応させれば
良い。Therefore, the angle (
tt) may be adapted to the length of C4 and the edge portion (to).

又前記機構搭載板ｃｎ′１２ｇ：支軸■に対して回動カ
ム＠な回動用モータにて回転させ、レバー翰の回動に伴
って支持片（至）を上下させて首振り揺動の構成になし
た実施例について説明したが、単に上下動の機構になし
ても良い。前記実施例において、（至）は上下動のスト
ッパーで、前記機構搭載板ＣＤを支軸−に対して時計方
向にバネ（財）によって付勢してあり、ストッパー（至
）としてのネジは前記首振り角度の大きさを調整できる
構成になしである。In addition, the mechanism mounting plate cn'12g: is rotated by a rotation motor such as a rotation cam @ with respect to the support shaft ■, and the support piece (to) is moved up and down as the lever handle is rotated to perform swinging. Although the embodiment has been described with a structure, it may be simply a vertical movement mechanism. In the above embodiment, (to) is a stopper that moves up and down, and the mechanism mounting plate CD is biased clockwise with respect to the spindle by a spring, and the screw (to) as the stopper is a stopper that moves up and down. There is no structure that allows adjustment of the swing angle.

前述の第１図に示した被載置物Ｑ４の加熱は、ヒータブ
ロック（社）内のヒータ（支）により行った場合、常温
以上に設定され、前記箔（２）が半田箔の場合は２００
度強に加熱しておき、被載置物Ｃ４上に載置されたとき
には溶融するので、この状態で上方から例えば半導体チ
ップを搭載すれば、前記被載置物としてのリードフレー
ムに対して前記半導体チップが固着される。When the heating of the object Q4 shown in FIG. 1 is performed by a heater (support) in a heater block (company), the temperature is set to above room temperature, and when the foil (2) is a solder foil, the temperature is set to 200℃.
The semiconductor chip is heated to a high degree and melts when placed on the object C4, so if a semiconductor chip is mounted from above in this state, the semiconductor chip is placed on the lead frame as the object C4. is fixed.

（ト）発明の効果 本発明の箔送り装置によれば、箔を所定の長さ分ずつ送
り、被載置物上にて前記所定の長さ分切断する構成であ
り、従来のように前記所定の長さに切断された箔は、そ
の都度吸着する必要がなく、箔の送りの次に切断及び載
置がほぼ同時に行え、前記切断時に前記第１のチャック
による箔の挾持した状態で摺動引張りが行え、確実に迅
速に切断が可能となる利点が得られる。(G) Effects of the Invention According to the foil feeding device of the present invention, the foil is fed by a predetermined length and cut by the predetermined length on the object to be placed. The foil cut to length does not need to be sucked each time, and cutting and mounting can be performed almost simultaneously after feeding the foil, and when cutting, the foil is slid while being held by the first chuck. This provides the advantage of being able to perform tensioning and ensure rapid cutting.

更く前記第１のチャックの箔に対する挾持解除後の戻り
時、第２のチャックによる前記箔の後退は未然に防止で
き、前記箔を前記被載置物に向って送る準備位置に前記
第１のチャックをセットできる。Furthermore, when the first chuck returns after releasing the grip on the foil, it is possible to prevent the foil from retreating by the second chuck, and the first chuck is placed in a preparation position for sending the foil toward the object. You can set the chuck.

【図面の簡単な説明】[Brief explanation of the drawing]

＠１図は本発明の箔送り装置の正面図、第２図は同装置
の動作説明図、第３図は同装置に用いるカッターを示す
図面である。 主な図番の説明 （１）・・・箔スプール、　（２）・・・箔、（８）・
・・第１のチャック、（ＩＱ・・・第２のチャック、（
１３−・・カッター、（２４）・・・被載置物、　Ｃ３
２・・・基部。 出願人　三洋電機株式会社　外１名 代浬人　弁理士　　佐　野　静　夫 第１図 第２図 第３図 ■− −Ｕ“ 一下 一］３ −］３Figure 1 is a front view of the foil feeding device of the present invention, Figure 2 is an explanatory diagram of the operation of the device, and Figure 3 is a drawing showing a cutter used in the device. Explanation of main drawing numbers (1)...Foil spool, (2)...Foil, (8)...
...First chuck, (IQ...Second chuck, (
13-... Cutter, (24)... Placed object, C3
2...Base. Applicant Sanyo Electric Co., Ltd. Patent Attorney Shizuo Sano Figure 1 Figure 2 Figure 3

Claims (1)

【特許請求の範囲】[Claims] （１）帯状体の箔が巻かれた箔スプール、該箔スプール
から導出された箔の先端部を挾持し、カッターに対して
往復運動を行う第１のチャック及び前記カッターによる
所定長さに切断後前記第１のチャックの移動時前記箔の
先端を挾持する第２のチャックとより成り、前記所定長
さに切断された箔を被載置物に載置することを特徴とし
た箔送り装置。(1) A foil spool around which a strip of foil is wound; a first chuck that clamps the tip of the foil drawn out from the foil spool and makes reciprocating motion relative to the cutter; and a cutter that cuts the foil into a predetermined length. A foil feeding device comprising: a second chuck that clamps the tip of the foil when the first chuck moves, and places the foil cut into the predetermined length on an object.