JP3650081B2

JP3650081B2 - Barrel equipment

Info

Publication number: JP3650081B2
Application number: JP2002140416A
Authority: JP
Inventors: 公治近藤
Original assignee: 株式会社コンドウ
Priority date: 2002-05-15
Filing date: 2002-05-15
Publication date: 2005-05-18
Anticipated expiration: 2022-05-15
Also published as: JP2003328196A

Description

【０００１】
【発明の属する技術分野】
本発明は、扁平な電子部品その他の扁平な小型のワーク群に、電気めっき、電解研磨、洗浄等の表面処理を施すに特に適するバレル装置に関する。
【０００２】
【従来の技術】
図４に示すように、上面にワークの出し入れ口１ａを備えたバレル１の下端中央に垂線に対し傾斜する回転軸２に結着し、該バレル１を、その回転中心線が該垂線に対し傾斜した状態で、処理液Ａ内の処理液に浸漬し、該バレルを回転させるとき、例えば、１分間に３０回程度の緩やかな速度で回転させるとき、該バレル１に収容した小型のワーク群は、該バレル１の回転に伴ってバレル１の回転方向に持上げられる動作と次いで自重でバレル１の内壁面を滑り落ちる動作とを繰り返して、バレル内で攪拌されつつ表面処理が施されるようにしたバレル装置は例えば実用新案登録第３０４９３５５号公報等で知られている。
【０００３】
【発明が解決しようとする課題】
しかし乍ら、上記従来のバレル装置で特に、扁平な小型のワーク群を処理しようとすると、バレル１の周側内面に多くのワークが付着し勝ちで、しかもバレル内でのワーク相互のずれも生じにくい。これが原因で、バレル内壁面に付着したワークは、バレル１の内壁面に接触する部分が処理液と十分に触れないため均一な表面処理を施すことが難しくなり、また表面処理がめっき処理である場合、ワーク相互のずれが少ないため、ワーク同士が塊となった状態でめっき処理されてしまう。即ち不良品を生じる等の不具合を生じる。
本発明は、かゝる課題を解消したバレル装置を提供することを目的とする。
【０００４】
【課題を解決するための手段】
本発明は、請求項１に記載の通り、上面にワークの出し入れ口を備え且つバレルの下端を垂線に対し傾斜させた回転軸に支持させて、垂線に対し傾斜する回転中心線を中心に回転するバレルを備えるバレル装置において、該バレルを回転軸に傾動自在に軸支させると共に、該バレルを、その回転中心線側と、これに対し傾動する傾動位置側に揺動させる揺動手段を設け、該揺動手段として、該バレルの底面の中央位置から下方に突出する突片を、該回転軸の上端よりも上方に突出する支持部材に、横方向の支持軸で軸支させたことを特徴とするバレル装置に存する。
【０００５】
【作用】
請求項１に係る発明によれば、バレルの下面中央位置から下方に突出する突片を設け、該突片を回転軸の上方に突出する支持部材に、横方向の支持軸で、バレルの回転中心線が該回転軸の延長線位置側から外れた傾動位置側に傾動自在に支持させたことで、バレルは、その重心が支持軸の下側の傾動位置側に傾動した状態で安定する。
また、バレルの回転によって、バレルの重心が、該支持軸の上側の傾動位置側に傾動した状態になると、バレルは不安定となり支持軸の下側の傾動位置側に急激に揺動する。これは、バレルの回転によって支持軸の軸線が上下方向を向いた直後に生じる。従って、バレルの１回転中２回生じる。
かゝる傾動揺動の動作を繰り返すとき、バレルの回転と共に回転しようとするバレル内のワーク群に、バレルの半径方向の急激な力が加わるため、バレルの周側内壁面にワークが付着するのを防ぎ、付着することによってワークの処理液との接触が不均一となり処理に斑ができると言う上記従来のバレル装置の不具合を解消できると共に、バレル内でのワーク相互の位置のずれを促すことができて、特に表面処理がめっき処理であるとき、ワーク同士が塊まりとなってめっきされることも防げる。
【０００６】
【発明の実施の形態】
本発明の実施の形態例を図１乃至図３に基づいて詳述する。
図でＡは処理液を入れた処理槽、Ｂはこれに収容するバレル装置を示し、該バレル装置Ｂは、上端にワークの出し入れ口１ａを備え且つ下端に垂線に対し傾斜する回転軸２を接続して垂線に対し傾斜する回転中心線を中心に回転するように設けたバレル１を備える。
バレル装置Ｂは、処理槽Ａの上方に設けた上下２段の横バーＣ，Ｃに上下２段に設けたフック３，３で、処理槽Ａに着脱自在に且つ斜め下方に傾斜した状態に取り付けられる架枠４を備え、前記回転軸２は、該架枠４の傾斜方向の下部に該架枠４に対し直交し且つ架枠４の上面に突出するごとく取り付けることで、処理槽Ａ内に垂線に対し傾斜させた状態に設ける。上記の構成は、従来のバレル装置と変わりがない。
該バレル１には、該バレル１を回転軸２に傾動可能に軸支させると共に、該バレル１を、その回転中心線側と、これに対し傾動する傾動位置側に揺動させる揺動手段を設けた。その傾動揺動手段は、バレル１の底面の中央位置から下方に突出する突片５を、該回転軸２の上端よりも上方に突出する支持部材６に、横方向の支持軸７で傾動自在に支持させた。
これを更に詳述すると、該突片５を平板状とし、支持部材６は、該回転軸２と一体に回転する歯車９ａの上面から間隔を存して上方に突出する２枚の平板状の支持部６ａ，６ａを対向させて配設したものに構成し、該突片５を、該支持部材６の該支持部６ａ，６ａ間にこれと平行するように差し込み、該突片５を該回転軸２の延長線と交差する横方向の支持軸７で該支持部材６に軸支させることで、バレル１の傾動時、一対の該支持部６ａ，６ａが突片５のガイドとなって、その揺動を安定した状態で行われるようにした。しかし、該突片５並びに該支持部材６の該支持部６ａ，６ａは、必ずしも、角形板状である必要はなく、丸棒その他の形状であっても良い。
【０００７】
かくするときは、バレル１の重心が、該支持軸７の下側の傾動位置側に傾動した状態で安定し勝ってにある。
このため、バレル１の回転によって、図３に示すように、バレル１の中心線側に来ると、即ち、バレル１の重心が、該支持軸７より上方に来ると、再びバレル１は、図１に示すように、支持軸７の傾動位置側に急激に揺動する。このように、この傾動揺動は、バレルの１回転中、支持軸７の軸線が上下方向を向いた直後の２回生じる。
このとき、バレル１の回転と共に回転しようとするバレル１内のワーク群に、バレル１の回転半径方向の急激な力が作用し、この力でバレル１の内壁面に付着し勝ってにあるワークの内壁面への付着を防ぐことができ、付着によりワークの処理液との接触が不均一になり、処理に斑ができると言う不具合を防ぐことができると共に、バレル１内でのワーク相互の位置のずれを促すことができて、特に表面処理がめっき処理であるとき、ワーク同士が塊まりとなってめっきされることも防げる。
【０００８】
図で８は前記架枠４の傾斜方向の上部側に設けた可変速の電動機を示し、該電動機８に前記の歯車９ａを含む歯車列９を介して前記回転軸２を連動させて、回転軸２、即ち、バレル１に例えば、１分間に３０回程度の緩やかな回転を与えるようにした。
１０はバレルの底面にフランジ１ｃを介し取り付けた円板を示し、バレル１が傾動したき、該円板１０の下面を、該歯車９ａの上面に支持軸７の両側に突設したストッパー１１，１１の上端で交互に支承させることで、バレル１の傾き角度を規制するようにした。
尚、１ｂは、バレル１の周側壁面に設けた無数の通液孔、１２はめっき処理をする場合に用いる電極を示す。
更に、図示しないが、バレル１の周側内壁面をその回転方向に直交する凹凸状面に形成することでワーク反転を促して、バレル内でのワークのより有効な攪拌を行うことができる。
【０００９】
【発明の効果】
請求項１に係る発明によるときは、バレルの回転中バレルが、その自重で回転軸の延長線上側と傾動位置側に傾動揺動する動作を繰り返すことで、バレルの回転と共に回転しようとするバレル内のワーク群に、バレルの半径方向の急激な力が作用して、その力でバレルの内壁面にワークが付着するのを防ぐことができ、付着することによってワークの処理液との接触が不均一となり処理斑ができる等の不具合を解消できると共に、バレル内でのワーク相互の位置のずれを促すことができて、特に表面処理がめっき処理であるとき、ワーク同士が塊となってめっきされるという不具合も解消できる効果をもたらす。特にかゝる効果は簡単な構成で達成できる。
【図面の簡単な説明】
【図１】本発明の実施の形態の１例を示す側面図。
【図２】図１の一部を省略したイ−イ線視図。
【図３】バレルの中心線側にあるときの要部の側面図。
【図４】従来のバレル装置の側面図。
【符号の説明】
１バレル
２回転軸
４架枠
５突片
６支持部材
７支持軸
１４カム
１５係合子[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a barrel apparatus particularly suitable for performing surface treatment such as electroplating, electrolytic polishing, and cleaning on a flat electronic component or other flat small work group.
[0002]
[Prior art]
As shown in FIG. 4 , a barrel 1 having a work inlet / outlet port 1a on the upper surface is connected to a rotary shaft 2 inclined with respect to a perpendicular at the center of the lower end of the barrel 1, and the rotation center line of the barrel 1 is perpendicular to the perpendicular. In a tilted state, when immersed in the processing liquid in the processing liquid A and rotating the barrel, for example, when rotating at a gentle speed of about 30 times per minute, a small group of workpieces accommodated in the barrel 1 Repeats the operation of lifting the barrel 1 in the rotation direction with the rotation of the barrel 1 and the operation of sliding down the inner wall surface of the barrel 1 by its own weight so that the surface treatment is performed while stirring in the barrel. Such a barrel apparatus is known, for example, from Utility Model Registration No. 3049355.
[0003]
[Problems to be solved by the invention]
However, in particular, when trying to process a flat and small workpiece group with the conventional barrel device, many workpieces tend to adhere to the inner surface on the peripheral side of the barrel 1, and the mutual displacement of the workpieces in the barrel also occurs. Hard to occur. For this reason, the work attached to the inner wall surface of the barrel is difficult to perform a uniform surface treatment because the portion that contacts the inner wall surface of the barrel 1 does not sufficiently contact the treatment liquid, and the surface treatment is a plating treatment. In this case, since there is little shift between the workpieces, plating is performed in a state where the workpieces are in a lump. That is, problems such as defective products occur.
An object of this invention is to provide the barrel apparatus which eliminated the subject which concerns.
[0004]
[Means for Solving the Problems]
According to the present invention, as described in claim 1, the workpiece has a work inlet / outlet on the upper surface, and the lower end of the barrel is supported by a rotating shaft inclined with respect to the vertical line, and rotates about a rotation center line inclined with respect to the vertical line. In the barrel apparatus including the barrel, a swinging means is provided for pivotally supporting the barrel on the rotation shaft so as to be tiltable and swinging the barrel to the rotation center line side and the tilting position side tilting relative to the rotation center line side. as the swinging means, a protrusion protruding downward from the center position of the bottom surface of the barrel, the support member projecting above the upper end of the rotating shaft, that is journalled in a transverse direction of the support shaft It resides in the barrel device that features .
[ 0005]
[Action]
According to the invention of claim 1, provided with a projecting piece projecting from the lower surface center of the barrels downward, the support member protruding the protruding piece above the rotating shaft, transverse with the support shaft, the barrel The barrel is stabilized in a state where its center of gravity is tilted to the tilt position side below the support shaft by allowing the rotation center line to tilt freely on the tilt position side deviating from the extended line position side of the rotation shaft. .
Further, when the center of gravity of the barrel is tilted to the upper tilt position side of the support shaft due to the rotation of the barrel, the barrel becomes unstable and rapidly swings to the lower tilt position side of the support shaft. This occurs immediately after the axis of the support shaft has turned up and down due to the rotation of the barrel. Therefore, it occurs twice during one rotation of the barrel.
When such tilting and swinging motion is repeated, a sudden force in the radial direction of the barrel is applied to the group of workpieces in the barrel to be rotated with the rotation of the barrel, so that the workpiece adheres to the inner wall surface on the peripheral side of the barrel. The above-mentioned conventional barrel device that the contact with the processing liquid of the workpiece becomes non-uniform due to the adhesion and the unevenness of the processing can be eliminated, and the displacement of the positions of the workpieces in the barrel is promoted. In particular, when the surface treatment is a plating treatment, the workpieces can be prevented from being plated in a lump .
[ 0006]
DETAILED DESCRIPTION OF THE INVENTION
The embodiments of the present invention will be described in detail with reference to FIGS.
In the figure, A is a treatment tank containing a treatment liquid, B is a barrel device accommodated in the treatment tank, and the barrel device B is provided with a workpiece loading / unloading port 1a at the upper end and a rotating shaft 2 inclined at the lower end with respect to the vertical line. A barrel 1 is provided that is connected to rotate about a rotation center line that is inclined with respect to the normal.
The barrel device B is detachably attached to the processing tank A and inclined obliquely downward with hooks 3 and 3 provided on the upper and lower two horizontal bars C and C provided above the processing tank A. The rotating shaft 2 is attached to the lower part of the inclination direction of the frame 4 so as to be orthogonal to the frame 4 and protrude from the upper surface of the frame 4. It is provided in a state inclined with respect to the vertical line. The above configuration is the same as a conventional barrel device.
The barrel 1 is provided with swinging means for pivotally supporting the barrel 1 on the rotary shaft 2 so as to be tiltable, and swinging the barrel 1 to the rotation center line side and to the tilt position side tilting relative thereto. Provided. Its inclination upset Dote stage, a protrusion 5 projecting downward from the center position of the bottom surface of the barrel 1, the support member 6 which projects above the upper end of the rotary shaft 2, tiltable transversely of the support shaft 7 Supported.
If this further detail, the projecting piece 5 and a flat, supporting member 6, two flat shape protruding upward at intervals from the upper surface of the gear 9a that rotates integrally with the rotary shaft 2 of the support portion 6a, 6a and to face configured to that provided, a projecting piece 5, the support portion 6a of the support member 6, insert to be parallel thereto between 6a, the protrusion 5 When the barrel 1 is tilted, the pair of support portions 6 a and 6 a serve as a guide for the projecting piece 5 by pivotally supporting the support member 6 with a lateral support shaft 7 that intersects the extended line of the rotating shaft 2. Therefore, the rocking is performed in a stable state. However, the support portions 6a, 6a of the protrusion 5 and the support member 6 need not necessarily be rectangular plate shape may be a round bar other shapes.
[0007]
In this case, the center of gravity of the barrel 1 is more stable and stable in a state in which the center of gravity of the barrel 1 is tilted toward the lower tilt position side of the support shaft 7.
For this reason, when the barrel 1 is rotated toward the center line side of the barrel 1 as shown in FIG. 3, that is, when the center of gravity of the barrel 1 is above the support shaft 7, the barrel 1 is again shown in FIG. As shown in FIG. 1, the support shaft 7 is swung rapidly toward the tilt position. As described above, this tilting and swinging occurs twice immediately after the axis of the support shaft 7 is directed in the vertical direction during one rotation of the barrel.
At this time, an abrupt force in the rotational radius direction of the barrel 1 acts on the workpiece group in the barrel 1 which is going to rotate together with the rotation of the barrel 1, and the workpiece is about to adhere to the inner wall surface of the barrel 1 with this force. Can be prevented from adhering to the inner wall surface, the contact of the workpiece with the processing liquid becomes non-uniform due to the adhesion, and it is possible to prevent the problem that spots are formed in the processing. The displacement of the position can be promoted, and particularly when the surface treatment is a plating treatment, the workpieces can be prevented from being plated in a lump.
[0008]
In the figure, reference numeral 8 denotes a variable speed electric motor provided on the upper side in the tilt direction of the frame 4, and the motor 8 is connected to the rotary shaft 2 via a gear train 9 including the gear 9 a to rotate. For example, a gentle rotation of about 30 times per minute is applied to the shaft 2, that is, the barrel 1.
Reference numeral 10 denotes a disk attached to the bottom surface of the barrel via a flange 1c. When the barrel 1 is tilted, stoppers 11 are provided so that the lower surface of the disk 10 protrudes on both sides of the support shaft 7 on the upper surface of the gear 9a. The inclination angle of the barrel 1 is regulated by alternately supporting the upper end of the barrel 11.
In addition, 1b shows the innumerable liquid passage holes provided on the peripheral side wall surface of the barrel 1, and 12 shows an electrode used for plating.
Furthermore, although not shown in the figure, by forming the inner wall surface on the peripheral side of the barrel 1 in a concavo-convex surface perpendicular to the rotation direction, the work can be reversed and the work can be more effectively stirred in the barrel .
[ 00 09 ]
【The invention's effect】
According to the first aspect of the present invention, the barrel that rotates while the barrel rotates is repeatedly rotated with its own weight by tilting and swinging toward the upper side of the extension line of the rotating shaft and the tilting position side. It is possible to prevent the workpiece from adhering to the inner wall surface of the barrel due to an abrupt radial force acting on the inner workpiece group, and this adhesion prevents the workpiece from contacting the processing liquid. In addition to eliminating defects such as unevenness and unevenness of processing, it is possible to promote the displacement of the positions of workpieces in the barrel. Especially when the surface treatment is plating, the workpieces form a lump. This brings about an effect that can solve the problem of being done . Tokunikakaru effect can be achieved with a simple structure.
[ Brief description of the drawings]
FIG. 1 is a side view showing an example of an embodiment of the present invention.
FIG. 2 is a view taken along the line II with part of FIG. 1 omitted.
FIG. 3 is a side view of the main part when it is on the center line side of the barrel .
Figure 4 is a side view of a conventional barrel device.
[Description of marks Nos.]
1 Barrel 2 Rotating shaft 4 Frame 5 Projection piece
6 Support member 7 Support shaft 14 Cam 15 Engagement element

Claims

In a barrel apparatus having a barrel rotating around a rotation center line inclined with respect to a vertical line, a work shaft being provided on the upper surface and supporting the lower end of the barrel on a rotation axis inclined with respect to the vertical line, the barrel is rotated. There is provided swinging means for pivotally supporting the shaft and swinging the barrel to the rotation center line side and the tilting position side tilting relative to the rotation center line side . A barrel apparatus characterized in that a projecting piece projecting downward from a central position is pivotally supported by a support member projecting upward from the upper end of the rotating shaft by a lateral support shaft.