JP2789576B2 - Conductive jig for plating printing rolls - Google Patents
Conductive jig for plating printing rollsInfo
- Publication number
- JP2789576B2 JP2789576B2 JP34273293A JP34273293A JP2789576B2 JP 2789576 B2 JP2789576 B2 JP 2789576B2 JP 34273293 A JP34273293 A JP 34273293A JP 34273293 A JP34273293 A JP 34273293A JP 2789576 B2 JP2789576 B2 JP 2789576B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- printing roll
- boss
- conductive
- plating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Electroplating Methods And Accessories (AREA)
Description
【0001】[0001]
【産業上の利用分野】この発明は、印刷ロールのメッキ
用導電治具に関するもので、更に詳細には、例えばグラ
ビア印刷に使用される印刷ロールをそのメッキ処理時に
保持する印刷ロールのメッキ用導電治具の改良に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conductive jig for plating a printing roll, and more particularly, to a conductive jig for a printing roll for holding a printing roll used for gravure printing during the plating process. It relates to improvement of jigs.
【0002】[0002]
【従来の技術】一般に、グラビア印刷に使用される印刷
ロールは、アルミニウム合金製のロール本体の表面を脱
脂処理した後、レジスト膜をコーティングし、文字や画
像等を焼付けて現像し、エッチング後、レジスト膜を剥
離し、電解銅メッキ、電解クロムメッキを施して印刷に
供される。特に、印刷ロールをメッキ処理する場合、図
6に示す一体構成の導電軸を有するメッキ用導電治具2
1が使用されている。2. Description of the Related Art In general, a printing roll used for gravure printing is obtained by degreasing the surface of a roll body made of an aluminum alloy, coating a resist film, baking and developing characters and images, etching, and then etching. The resist film is peeled off, subjected to electrolytic copper plating and electrolytic chromium plating, and used for printing. In particular, when the printing roll is plated, the conductive jig 2 for plating having an integral conductive shaft shown in FIG.
1 is used.
【0003】すなわち、このメッキ用導電治具21は、
印刷ロール2を取付けて陰極の極性を付与するための導
電軸1を備えており、この導電軸1に印刷ロール2を固
定するために、まず印刷ロール2の両端軸心部に設けら
れたテーパ孔4に銅製のボス5a,5bを嵌合させ、こ
れらボス5a,5bのボス穴14に導電軸1を挿通す
る。That is, this plating jig 21 is
A conductive shaft 1 for attaching a printing roll 2 to impart a polarity of a cathode is provided. To fix the printing roll 2 to the conductive shaft 1, first, a taper provided at both ends of the printing roll 2 is provided. Copper bosses 5a and 5b are fitted into the holes 4, and the conductive shaft 1 is inserted into the boss holes 14 of these bosses 5a and 5b.
【0004】次に、印刷ロール2の両端部にパッキン6
を介して対向するように例えば塩化ビニール製の遮蔽板
7a,7bを導電軸1に通し、その一方の遮蔽板7bを
導電軸1上にねじ等22で固定すると共に、他方の遮蔽
板7aを挿通するスプリング23を一方の遮蔽板7bに
向って押圧すべく塩化ビニール製筒体24を介してスプ
リング押し金具26を取付ける。この場合、塩化ビニー
ル製筒体24と遮蔽板7aとの間にパッキン27が介在
され、またスプリング押し金具26は電解槽25の外側
に位置し、導電軸1に押しビス28によって固定される
ストッパ29によって導電軸1の軸方向に規制されてい
る。なお、図中符号30は銅箔であり、導電軸1とボス
5a,5bのボス穴14面を緊密に接触させるために取
付けられている。このように組付けられたメッキ用導電
治具21により印刷ロール2を電解槽25内の陽極18
間にセットし、印刷ロール2を回転しながらメッキ処理
を行う。[0004] Next, packing 6 is attached to both ends of the printing roll 2.
The shielding plates 7a and 7b made of, for example, vinyl chloride are passed through the conductive shaft 1 so as to face each other, and one of the shielding plates 7b is fixed on the conductive shaft 1 with screws 22 and the other shielding plate 7a is In order to press the inserted spring 23 toward the one shielding plate 7b, a spring pressing metal fitting 26 is attached via a vinyl chloride cylinder 24. In this case, a packing 27 is interposed between the vinyl chloride cylinder 24 and the shielding plate 7a, and a spring press fitting 26 is located outside the electrolytic cell 25 and is fixed to the conductive shaft 1 by a press screw 28. 29 regulates the conductive shaft 1 in the axial direction. In the drawing, reference numeral 30 denotes a copper foil, which is attached so that the conductive shaft 1 and the boss holes 14 of the bosses 5a and 5b are in close contact with each other. The printing roll 2 is moved to the anode 18 in the electrolytic tank 25 by the plating conductive jig 21 thus assembled.
The plating process is performed while the printing roll 2 is being rotated.
【0005】[0005]
【発明が解決しようとする課題】しかしながら、上記印
刷ロールのメッキ用導電治具においては、導電軸1が長
尺(2m位)の一本の棒であるため、重く作業性が悪い
ばかりか、ボス5a,5bの着脱の繰返しによりボス穴
14と導電軸1の接触面が摩耗し易く、接触不良を生じ
て電流値が振れ、それ故に上述の銅箔30を導電軸1と
ボス穴14の間に挿入しなくてはならない問題があっ
た。また、銅箔30を取付けたとしても印加電流値に限
度があった。However, in the above-described conductive jig for plating a printing roll, the conductive shaft 1 is a long rod (about 2 m), so that not only is it heavy but poor in workability, The contact surface between the boss hole 14 and the conductive shaft 1 is liable to be worn due to repeated attachment and detachment of the bosses 5a and 5b, causing poor contact and causing a fluctuation in the current value. There was a problem that had to be inserted in between. Further, even when the copper foil 30 was attached, the applied current value was limited.
【0006】この発明は上記事情に鑑みなされたもの
で、組立作業性の向上が図れると共に、接触不良の問題
が生じることなく、したがって銅箔の挿入を必要とせ
ず、しかも高電流を流せる印刷ロールのメッキ用導電治
具を提供することを目的とするものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and can improve the assembling workability, does not cause a problem of poor contact, and therefore does not require insertion of a copper foil, and is capable of flowing a high current. It is an object of the present invention to provide a conductive jig for plating.
【0007】[0007]
【課題を解決するための手段】上記目的を達成するため
に、この発明の印刷ロールのメッキ用導電治具は、印刷
ロールの両端軸心部に外側へ拡径したテーパ孔を設け、
このテーパ孔に挿通される導電軸にテーパ孔と係合する
ボス及び印刷ロールの両端部と対向する遮蔽板を装着し
てなる印刷ロールのメッキ用導電治具において、上記導
電軸を印刷ロール部分に位置する中央軸とその両端の第
1、第2の端部軸とに分割し、第1の端部軸と中央軸を
一方の遮蔽板に軸継手を介して連結し、中央軸に第1の
ボスを装着すると共に、その軸端に第2のボスを螺合し
て印刷ロールを挟持し、上記第2のボスに第2の端部軸
を介して他方の遮蔽板を取付けたことを特徴としてい
る。In order to achieve the above object, a conductive jig for plating a printing roll according to the present invention is provided with a tapered hole whose diameter is increased outward at both ends of the printing roll.
In a conductive jig for plating of a printing roll having a conductive boss inserted into the tapered hole and a boss engaging with the tapered hole and shielding plates facing both ends of the printing roll, the conductive shaft is connected to the printing roll part. Is divided into a central shaft and first and second end shafts at both ends thereof. The first end shaft and the central shaft are connected to one shield plate via a shaft coupling, and the first shaft is connected to the central shaft. The first boss is mounted, the second boss is screwed onto the shaft end of the boss, the printing roll is sandwiched, and the other shielding plate is attached to the second boss via the second end shaft. It is characterized by.
【0008】この発明において、上記遮蔽板は、単なる
合成樹脂製の円板であってもよいが、印刷ロールの端部
エッジ部に集中する電流を抑制して端面に均一な被膜を
形成するためには、印刷ロールの端部周縁部と対向して
離反した段差部を有していることが好ましい。また、上
記遮蔽板は、印刷ロールの端部周縁部と対向する部分に
窓穴が形成され、かつ、周端面を残す全面が絶縁被覆さ
れた金属製の補助陰極にて形成するようにしてもよい。In the present invention, the shielding plate may be a mere disk made of a synthetic resin. However, the shielding plate suppresses a current concentrated on the edge of the printing roll and forms a uniform coating on the end face. Preferably has a stepped portion facing away from the peripheral edge of the printing roll. Further, the shielding plate may be formed of a metal auxiliary cathode having a window hole formed in a portion facing the peripheral edge portion of the printing roll and having an insulating coating on the entire surface excluding the peripheral end surface. Good.
【0009】[0009]
【作用】上記のように構成されるこの発明の印刷ロール
のメッキ用導電治具によれば、導電軸が中央軸と両側の
端部軸に3分割されているため、軽くて取扱いが容易で
あり、作業性の向上が図れる。また、一方の端部軸と中
央軸を一方の遮蔽板に軸継手を介して連結し、その中央
軸に一方のボスを装着すると共にその軸端に他方のボス
を螺合して印刷ロールを挟持するようにしたので、中央
軸に装着される一方のボスにあっては着脱時の摺動距離
が短くて摩耗し難く、他方のボス部にあっては中央軸の
軸端に螺合されているため接触不良を生じない。従っ
て、電流値の振れを起こさないので、高電流を流せるた
め、高電流密度のメッキ処理が可能となり、処理時間の
短縮、生産性の向上が図れる。According to the conductive jig for plating a printing roll of the present invention constructed as described above, the conductive shaft is divided into three parts, a central shaft and end shafts on both sides, so that it is light and easy to handle. Yes, workability can be improved. In addition, one end shaft and the center shaft are connected to one shield plate via a shaft joint, and one boss is attached to the center shaft, and the other boss is screwed to the shaft end to form a printing roll. As it is clamped, the sliding distance at the time of attachment and detachment is short for one boss mounted on the central shaft and it is difficult to wear, and the other boss part is screwed to the shaft end of the central shaft. Therefore, no contact failure occurs. Therefore, since a current value does not fluctuate, a high current can be supplied, and a plating process with a high current density can be performed, thereby shortening the processing time and improving the productivity.
【0010】[0010]
【実施例】以下、この発明の一実施例を添付図面に基づ
いて詳述する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.
【0011】印刷ロールのメッキ用導電治具を示す図1
において、1は印刷ロール2を取付けるための黄銅製の
導電軸で、この導電軸1は印刷ロール2部分に位置する
中央軸1aとその両端の第1、第2の端部軸1b,1c
とに分割されている。印刷ロール2の両端部には開口部
を覆うフランジ3が一体的に設けられ、各フランジ3の
軸心部には外側へ拡径したテーパ孔4が形成されてい
る。この印刷ロール2の両端軸心部のテーパ孔4には銅
製の第1及び第2のボス5a,5bがそれぞれ係合さ
れ、これらボス5a,5bの外側には印刷ロールの両端
部にリング状のゴム製パッキン6を挟んで対向する遮蔽
板7a,7bが配置されるようになっている。FIG. 1 shows a conductive jig for plating a printing roll.
In the figure, reference numeral 1 denotes a conductive shaft made of brass for mounting the printing roll 2, and the conductive shaft 1 has a central shaft 1a located at the printing roll 2 and first and second end shafts 1b and 1c at both ends thereof.
And is divided into: Flanges 3 that cover the openings are integrally provided at both ends of the printing roll 2, and tapered holes 4 whose diameters are increased outward are formed at the axial centers of the respective flanges 3. First and second bosses 5a and 5b made of copper are respectively engaged with the tapered holes 4 at the axial center portions of both ends of the printing roll 2. Outside these bosses 5a and 5b, ring-shaped portions are formed at both ends of the printing roll. The shield plates 7a and 7b opposed to each other with the rubber packing 6 interposed therebetween are arranged.
【0012】そして、上記一方の遮蔽板7aには中央軸
1aと一方の(第1の)端部軸1bがステンレス製の軸
継手8を介して連結され、中央軸1aには一方の(第1
の)ボス5aが装着されると共に、その軸端に他方の
(第2の)ボス5bが螺合されて印刷ロール2が挟持さ
れている。A central shaft 1a and one (first) end shaft 1b are connected to the one shielding plate 7a via a shaft coupling 8 made of stainless steel, and one (first) is connected to the central shaft 1a. 1
The boss 5a is mounted, and the other (second) boss 5b is screwed to the shaft end of the boss 5a, and the print roll 2 is held therebetween.
【0013】この場合、遮蔽板7a,7bは合成樹脂、
好ましくは塩化ビニールによって印刷ロール2の外径よ
りも大きい直径の円板状に形成されてもよく(図示せ
ず)、また、図5に示すように印刷ロール2の端部周縁
部と対向する部分には印刷ロール2の端部周縁部から離
反した段差部9が形成されていてもよい。上記軸継手8
は一方の遮蔽板7aの外面軸心部に皿ビス10で取付け
られている。中央軸1aの両端部と各端部軸1b,1c
の一端にはそれぞれねじ部11a〜11dが刻設されて
おり、上記軸継手8には中央軸1aと端部軸1bのねじ
部11a,11cが同一軸線上で対向して螺合するねじ
穴12a,12bが形成されている。なお、軸継手8の
ねじ穴12a,12bは図示例では互いに独立している
が、連通していてもよく、軸継手8はナットであっても
よい。また、遮蔽板7aにも中央軸1aのねじ部11a
が螺合するねじ穴12cが形成されているが、このねじ
穴12cは単なる軸穴であってもよい。更に、軸継手8
に螺着される第1の端部軸1bのねじ部11cはメッキ
処理時の回転で緩まないよう他方の(第2の)端部軸1
cのねじ部11dとは逆ねじにしてもよく、或いはスプ
ラインや角軸等であってもよい。In this case, the shielding plates 7a and 7b are made of synthetic resin,
Preferably, it may be formed in a disc shape having a diameter larger than the outer diameter of the printing roll 2 by vinyl chloride (not shown), and as shown in FIG. A step portion 9 may be formed in the portion away from the peripheral edge of the end portion of the print roll 2. Shaft coupling 8
Is mounted on the outer surface axial portion of one of the shielding plates 7a with a countersunk screw 10. Both ends of the central shaft 1a and each end shaft 1b, 1c
Threaded portions 11a to 11d are engraved at one end of the shaft joint 8, respectively. The screw holes 11a and 11c of the central shaft 1a and the end shaft 1b are screwed into the shaft joint 8 in such a manner as to face each other on the same axis. 12a and 12b are formed. Although the screw holes 12a and 12b of the shaft coupling 8 are independent from each other in the illustrated example, they may be connected to each other, and the shaft coupling 8 may be a nut. Also, the shielding plate 7a has a screw portion 11a of the central shaft 1a.
Is formed, but the screw hole 12c may be a simple shaft hole. Furthermore, the shaft coupling 8
The screw portion 11c of the first end shaft 1b screwed to the other (second) end shaft 1 is not loosened by rotation during plating.
The threaded portion 11d of c may be a reverse thread, or may be a spline, a square shaft, or the like.
【0014】また、中央軸1aのねじ部11aには遮蔽
板7a側からボス5aを押えるための押えナット13が
螺着されているが、この押えナット13は単なるリング
であってもよい。なお、上記押えナット13の厚さは、
遮蔽板7aと印刷ロール2のフランジ3との間に介設さ
れるパッキン6の圧縮厚さに設定されている。A pressing nut 13 for pressing the boss 5a from the side of the shielding plate 7a is screwed to the screw portion 11a of the central shaft 1a, but the pressing nut 13 may be a simple ring. The thickness of the presser nut 13 is as follows.
The compression thickness of the packing 6 provided between the shield plate 7a and the flange 3 of the printing roll 2 is set.
【0015】上記一方の(第1の)ボス5aには中央軸
1aが摺動自在に嵌挿されるボス穴14が形成され、他
方の(第2の)ボス5bには中央軸1aと第2の端部軸
1cのねじ部11b,11dが同一軸線上で対向して螺
合するねじ穴12d,12eが形成されている。なお、
ねじ穴12d,12eは図示例では互いに独立している
が、連通していてもよい。また、この第2のボス5bの
外面部にはこれを回転するためのハンドルが係合するハ
ンドル孔15が形成されている(図2参照)。The one (first) boss 5a is formed with a boss hole 14 into which the center shaft 1a is slidably inserted, and the other (second) boss 5b is formed with the center shaft 1a and the second shaft. Are formed with screw holes 12d and 12e in which the screw portions 11b and 11d of the end shaft 1c are screwed to face each other on the same axis. In addition,
The screw holes 12d and 12e are independent of each other in the illustrated example, but may be connected. A handle hole 15 is formed in the outer surface of the second boss 5b so that a handle for rotating the second boss 5b is engaged (see FIG. 2).
【0016】上記他方の遮蔽板7bには端部軸1cが挿
通される軸孔16が形成され、端部軸1cのねじ部11
dにはその遮蔽板7bを印刷ロール2側へ押圧するため
の押えナット17が螺着されている。なお、図1におい
て、18は電解槽内に設けられた陽極である。A shaft hole 16 through which the end shaft 1c is inserted is formed in the other shield plate 7b, and the screw portion 11 of the end shaft 1c is formed.
A pressing nut 17 for pressing the shielding plate 7b toward the printing roll 2 is screwed to d. In FIG. 1, reference numeral 18 denotes an anode provided in the electrolytic cell.
【0017】次に、上記のように構成される印刷ロール
2のメッキ用導電治具の組付け方法について説明する。
予め両遮蔽板7a,7bの内面部にパッキン6をそれぞ
れ装着しておく。そしてまず、一方の遮蔽板7aに皿ビ
ス10で取付けられた軸継手8に、押えナット13を取
付けた中央軸1aをねじ込んで一体化する。次いで、そ
の中央軸1aにボス穴14を有する第1のボス5aを通
し、更に印刷ロール2を通した後、中央軸1aの軸端に
ハンドル孔15を有する第2のボス5bを取付け、ハン
ドルをハンドル孔15に係合させて締付ける。この場
合、ハンドル孔15を有する第2のボス5bが印刷ロー
ル2のテーパ孔4に摺接することによる摩耗を防止する
ために、ハンドルによる締付けを適当なところで止めて
軸継手8を回し、中央軸1aをパッキン6が押えナット
13の厚さに圧縮されるまでボス5bにねじ込むように
するとよい。これにより印刷ロール2がその両端部のテ
ーパ孔4内に嵌合した両ボス5a,5bにより押圧挟持
される。次に、第2の端部軸1cに押えナット17を取
付けると共に、他方の遮蔽板7bを通し、この第2の端
部軸1cをハンドルを有する第2のボス5bにねじ込
み、押えナット17によりその遮蔽板7bをパッキン6
が圧縮するまで締付ける。しかる後、第1の端部軸1b
を上記軸継手8に取付けて、組付けが完了する。なお、
予め軸継手8に遮蔽板7a、押えナット13を取付けた
中央軸1a及び第1の端部軸1bを組付けておけば、印
刷ロール2の着脱が短時間でできる。Next, a method for assembling the conductive jig for plating the print roll 2 configured as described above will be described.
The packing 6 is attached to the inner surfaces of both shielding plates 7a and 7b in advance. First, the center shaft 1a to which the holding nut 13 is attached is screwed into the shaft coupling 8 attached to one of the shielding plates 7a with the countersunk screw 10 to be integrated. Next, a first boss 5a having a boss hole 14 is passed through the center shaft 1a, and further, a printing roll 2 is passed. Then, a second boss 5b having a handle hole 15 is attached to the shaft end of the center shaft 1a. Is engaged with the handle hole 15 and tightened. In this case, in order to prevent the second boss 5b having the handle hole 15 from being worn by sliding contact with the tapered hole 4 of the printing roll 2, tightening by the handle is stopped at an appropriate position, and the shaft joint 8 is turned. 1a is preferably screwed into the boss 5b until the packing 6 is compressed to the thickness of the holding nut 13. As a result, the printing roll 2 is pressed and nipped by the two bosses 5a and 5b fitted into the tapered holes 4 at both ends. Next, a presser nut 17 is attached to the second end shaft 1c, and the second end shaft 1c is screwed into a second boss 5b having a handle through the other shielding plate 7b. The shielding plate 7b is
Until it is compressed. Thereafter, the first end shaft 1b
Is attached to the shaft coupling 8 to complete the assembly. In addition,
If the center shaft 1a having the shielding plate 7a and the holding nut 13 attached to the shaft coupling 8 and the first end shaft 1b are assembled in advance, the attachment and detachment of the printing roll 2 can be performed in a short time.
【0018】上記のように構成される印刷ロール2のメ
ッキ用導電治具によれば、導電軸1が中央軸1aと両側
の第1、第2の端部軸1b,1cに3分割されているた
め、軽くて取扱いが容易であり、作業性の向上が図れ
る。また、一方の端部軸1bと中央軸1aを一方の遮蔽
板7aに軸継手8を介して連結し、その中央軸1aに一
方のボス5aを装着すると共にその軸端に他方のボス5
bを螺合して印刷ロール2を挟持するようにしたので、
中央軸1aに装着される一方のボス5aにあっては着脱
時の摺動距離が短くて摩耗あるいは損傷し難く、他方の
ボス部5bにあっては中央軸1aの軸端に螺合されてい
るため接触不良を生じない。したがって、電流値の振れ
を起こさないので、高電流を流せるため、高電流密度の
メッキ処理が可能となり、処理時間の短縮、生産性の向
上が図れる。更に、遮蔽板7a,7bが、合成樹脂によ
り形成され、印刷ロール2の端部周縁部と対向して離反
した段差部9を有している場合は、印刷ロール2の端部
エッジ部2aに集中する電流が抑制され、エッジ部2a
のメッキ過剰を防止でき、均一な皮膜を形成することが
できる。According to the conductive jig for plating of the printing roll 2 configured as described above, the conductive shaft 1 is divided into three parts: the central shaft 1a and the first and second end shafts 1b and 1c on both sides. Therefore, it is light and easy to handle, and workability can be improved. Also, one end shaft 1b and the central shaft 1a are connected to one shielding plate 7a via a shaft coupling 8, and one boss 5a is mounted on the central shaft 1a and the other boss 5a is attached to the shaft end.
b is screwed together to hold the print roll 2,
One boss 5a attached to the central shaft 1a has a short sliding distance at the time of attachment and detachment and is hardly worn or damaged, and the other boss 5b is screwed to the shaft end of the central shaft 1a. No contact failure occurs. Therefore, since the current value does not fluctuate, a high current can be passed, and a plating process with a high current density can be performed, thereby shortening the processing time and improving the productivity. Further, when the shielding plates 7a and 7b are formed of synthetic resin and have a stepped portion 9 which is opposed to and separates from the peripheral edge of the printing roll 2, the shielding edge 7a, 7b may be provided at the edge 2a of the printing roll 2. The concentrated current is suppressed, and the edge portion 2a
Overplating can be prevented, and a uniform film can be formed.
【0019】なお、上記実施例の遮蔽板7a,7bの詳
細は、図3及び図4に示すように印刷ロール2の端部周
縁部と対向する部分に窓穴19が形成された金属製、好
ましくはステンレス製の補助陰極20により構成するよ
うにしてもよい。この場合、この補助陰極20は印刷ロ
ール2の端部の外径とほぼ等しい直径の円板状に形成さ
れ、印刷ロール2の端部エッジ部2aに対応する周縁部
を残して複数の窓穴19が形成され、かつ、周端面20
aを残す両側面及び窓孔19の内周面の全面には絶縁塗
料でマスキング20b(絶縁被覆)されている。また、
補助陰極20には中央軸1aと端部軸1bを取付けるた
めの軸継手8が一体的に設けられている。かかる構成の
補助陰極20によれば、印刷ロール2の端部エッジ部2
aへ集中する電流が補助陰極20の周端面20aに流れ
ると共に、窓穴19を通して印刷ロール2の端面に電流
が供給され、エッジ部2aのメッキ過剰を防止でき、端
面に均一な皮膜を形成することができる。The details of the shield plates 7a and 7b of the above embodiment are as follows: a metal plate having a window hole 19 formed in a portion facing the peripheral edge of the end portion of the print roll 2 as shown in FIGS. Preferably, the auxiliary cathode 20 may be made of stainless steel. In this case, the auxiliary cathode 20 is formed in a disk shape having a diameter substantially equal to the outer diameter of the end of the printing roll 2, and a plurality of window holes are left except for the peripheral edge corresponding to the edge 2 a of the printing roll 2. 19 are formed, and the peripheral end surface 20 is formed.
Masking 20b (insulating coating) with insulating paint is applied to both side surfaces where a is left and the entire inner peripheral surface of the window hole 19. Also,
The auxiliary cathode 20 is integrally provided with a shaft joint 8 for attaching the center shaft 1a and the end shaft 1b. According to the auxiliary cathode 20 having such a configuration, the end edge portion 2 of the printing roll 2 is provided.
The current concentrated on the edge a of the auxiliary roll 20 flows to the peripheral end surface 20a of the auxiliary cathode 20, and the current is supplied to the end surface of the printing roll 2 through the window hole 19, so that excessive plating of the edge portion 2a can be prevented, and a uniform film is formed on the end surface. be able to.
【0020】次に、この発明のメッキ用導電治具と従来
のメッキ用導電用治具との皮膜生成試験について説明す
る。上記皮膜生成試験に当って、窓穴19を有するステ
ンレス製補助陰極20(図3)を遮蔽板7a,7bとし
て用いた治具(図1)(実施例1)と、治具中ステンレ
ス製補助陰極20を段差部9を有する合成樹脂製遮蔽板
7a,7bに交換した治具(図5)(実施例2)と、図
6に示す導電軸が長尺の一本の棒からなる治具(比較
例)を用意して以下の条件で皮膜生成試験を行った。Next, a description will be given of a film formation test using the plating conductive jig of the present invention and a conventional plating conductive jig. In the above film formation test, a jig (FIG. 1) (Example 1) using a stainless steel auxiliary cathode 20 (FIG. 3) having a window hole 19 as shielding plates 7a and 7b, and a stainless steel auxiliary A jig in which the cathode 20 is replaced with synthetic resin shielding plates 7a and 7b having a stepped portion 9 (FIG. 5) (Example 2), and a jig in which the conductive shaft shown in FIG. (Comparative Example) was prepared and a film formation test was performed under the following conditions.
【0021】試験条件:電解液を硫酸銅200g/l
(リットル)、硫酸70g/l、塩酸0.05g/lの
浴組成とし、これに表面のメッキ層を緻密化し、光輝性
をもたせるために日本化学産業株式会社製のクライペッ
トRH100(商品名)を2cc/lと、同社製RH2
00(商品名)を3cc/l添加し、浴温を40℃とし
た。また、印刷ロール2は直径200mm、長さ500
mmのものを用い、電解液中に全没させて大きさ400
×500mmの銅板からなる陽極18との極間を50m
mとし、電解槽には冷却装置を設けた。Test conditions: The electrolytic solution was copper sulfate 200 g / l.
(Liter), sulfuric acid 70 g / l, and hydrochloric acid 0.05 g / l. A bath composition of Nippon Kagaku Sangyo Co., Ltd. (trade name) is used to densify the plating layer on the surface and to give it a glitter. 2cc / l and RH2
00 (trade name) was added at 3 cc / l, and the bath temperature was set to 40 ° C. The printing roll 2 has a diameter of 200 mm and a length of 500 mm.
mm and completely immersed in the electrolyte to obtain a size of 400
The distance between the anode 18 made of a copper plate of × 500 mm and the anode 18 is 50 m.
m, and a cooling device was provided in the electrolytic cell.
【0022】上記条件で試験を行ったところ、実施例1
及び2では、電流密度20A/dm2 、25A/dm2
で、それぞれ20分、16分処理した結果、印刷ロール
平面部に110μmの銅メッキ皮膜が生成し、印刷ロー
ルエッジ部2aには実施例1が135μm、実施例2が
200μmであって、印刷ロール平面部の1.2,1.
8倍程度に抑えることができ、電流値も安定していた。
これに対して、比較例では、銅箔30を導電軸1とボス
5aのボス穴14との隙間に取付けて試験を行ったが、
電流密度20A/dm2 ,25A/dm2 では電流値の
振れが大きく、試験開始2〜3分で中止した。また、電
流値の振れが小さく、しかも印刷ロール平面部に110
μmの銅メッキ皮膜を生成できた最大の電流密度は10
A/dm2 で、所要時間は40分であった。When a test was conducted under the above conditions, Example 1 was obtained.
And 2, current densities of 20 A / dm 2 and 25 A / dm 2
As a result of processing for 20 minutes and 16 minutes, respectively, a copper plating film of 110 μm was formed on the print roll plane portion, and the print roll edge portion 2a was 135 μm in Example 1 and 200 μm in Example 2, 1.2, 1.
It could be suppressed to about 8 times and the current value was stable.
On the other hand, in the comparative example, a test was performed by attaching the copper foil 30 to the gap between the conductive shaft 1 and the boss hole 14 of the boss 5a.
At current densities of 20 A / dm 2 and 25 A / dm 2 , the fluctuation of the current value was large, and the test was stopped 2 to 3 minutes after the test was started. In addition, the fluctuation of the current value is small, and 110
The maximum current density at which a copper plating film of μm could be formed was 10
At A / dm 2 , the required time was 40 minutes.
【0023】[0023]
【発明の効果】以上に説明したように、この発明のによ
れば、上記のように構成されているので、以下のような
効果が得られる。As described above, according to the present invention, the following effects can be obtained because of the configuration described above.
【0024】1)請求項1記載の印刷ロールのメッキ用
導電治具によれば、 導電軸が中央軸と両側の端部軸に3分割されているの
で、軽くて取扱いが容易であり、組立作業性の向上が図
れる。1) According to the conductive jig for plating a printing roll according to the first aspect, the conductive shaft is divided into three parts, a central shaft and both end shafts, so that it is light and easy to handle, and is easy to assemble. Workability can be improved.
【0025】一方の端部軸と中央軸を一方の遮蔽板に
軸継手を介して連結し、その中央軸に一方のボスを装着
すると共にその軸端に他方のボスを螺合して印刷ロール
を挟持するようにしたので、中央軸に装着される一方の
ボスにあっては着脱時の摺動距離が短くて摩耗し難く、
他方のボス部にあっては中央軸の軸端に螺合されている
ことからいずれも接触不良を生じることがなく、したが
って、電流値の振れを起こさないので、高電流を流せる
ため、高電流密度のメッキ処理が可能となり、処理時間
の短縮、生産性の向上が図れる。One end shaft and the center shaft are connected to one shield plate via a shaft coupling, one boss is mounted on the center shaft, and the other boss is screwed onto the shaft end of the printing roll. So that the one boss attached to the central shaft has a short sliding distance when attaching and detaching, making it difficult to wear.
Since the other boss portion is screwed to the shaft end of the central shaft, no contact failure occurs, and therefore, the current value does not fluctuate. The plating process can be performed at a high density, thereby shortening the processing time and improving the productivity.
【0026】2)請求項2記載の印刷ロールのメッキ用
導電治具によれば、遮蔽板が、合成樹脂により形成さ
れ、印刷ロールの端部周縁部と対向して離反した段差部
を有しているため、印刷ロールの端部エッジ部に集中す
る電流が抑制され、エッジ部のメッキ過剰を防止でき
る。According to the second aspect of the present invention, the shielding plate is formed of a synthetic resin and has a stepped portion facing the peripheral edge of the end of the printing roll. Therefore, current concentrated on the edge of the end portion of the printing roll is suppressed, and excessive plating at the edge portion can be prevented.
【0027】3)請求項3記載の印刷ロールのメッキ用
導電治具によれば、遮蔽板が、印刷ロールの端部周縁部
と対向する部分に窓穴が形成され、かつ、周端面を残す
全面が絶縁被覆された金属製の補助陰極から構成されて
いるため、印刷ロールの端部エッジ部へ集中する電流が
補助陰極に流れると共に窓穴を通して印刷ロールの端部
に電流が供給され、エッジ部のメッキ過剰を防止でき、
端面に均一な皮膜を形成することができる。According to the third aspect of the present invention, the shielding plate has a window hole formed in a portion facing the peripheral edge of the printing roll and leaves the peripheral end surface. Since the entire surface is composed of a metal auxiliary cathode coated with insulation, the current concentrated on the edge of the end of the print roll flows to the auxiliary cathode and current is supplied to the end of the print roll through the window hole, and the edge Can prevent excessive plating of parts,
A uniform film can be formed on the end face.
【図1】この発明の実施例である印刷ロールのメッキ用
導電治具の断面図である。FIG. 1 is a sectional view of a conductive jig for plating a print roll according to an embodiment of the present invention.
【図2】この発明における中央軸の軸端に螺合されるボ
スの正面図である。FIG. 2 is a front view of a boss screwed to a shaft end of a center shaft in the present invention.
【図3】遮蔽板として構成された補助陰極の斜視図であ
る。FIG. 3 is a perspective view of an auxiliary cathode configured as a shielding plate.
【図4】同補助陰極の取付状態を示す断面図である。FIG. 4 is a cross-sectional view showing a mounting state of the auxiliary cathode.
【図5】この発明の別の実施例の断面図である。FIG. 5 is a sectional view of another embodiment of the present invention.
【図6】従来の導電軸が長尺の一本の棒からなる印刷ロ
ールのメッキ用導電治具の断面図である。FIG. 6 is a cross-sectional view of a conventional conductive jig for plating a printing roll in which a conductive shaft is formed of a single long rod.
1 導電軸 1a 中央軸 1b,1c 端部軸 2 印刷ロール 4 テーパ孔 5a,5b ボス 7a,7b 遮蔽板 8 軸継手 9 段差部 19 窓穴 20 補助陰極 20a 周端面 20b 絶縁被覆部 DESCRIPTION OF SYMBOLS 1 Conductive shaft 1a Central shaft 1b, 1c End shaft 2 Printing roll 4 Tapered hole 5a, 5b Boss 7a, 7b Shielding plate 8 Shaft coupling 9 Stepped portion 19 Window hole 20 Auxiliary cathode 20a Peripheral end surface 20b Insulation coating portion
Claims (3)
たテーパ孔を設け、このテーパ孔に挿通される導電軸に
テーパ孔と係合するボス及び印刷ロールの両端部と対向
する遮蔽板を装着してなる印刷ロールのメッキ用導電治
具において、 上記導電軸を印刷ロール部分に位置する中央軸とその両
端の第1、第2の端部軸とに分割し、第1の端部軸と中
央軸を一方の遮蔽板に軸継手を介して連結し、中央軸に
第1のボスを装着すると共に、その軸端に第2のボスを
螺合して印刷ロールを挟持し、上記第2のボスに第2の
端部軸を介して他方の遮蔽板を取付けたことを特徴とす
る印刷ロールのメッキ用導電治具。1. A boss that engages with a tapered hole in a conductive shaft inserted into the tapered hole, and a shield that opposes both ends of the print roll. In a conductive jig for plating a printing roll having a plate mounted thereon, the conductive shaft is divided into a central shaft located at the printing roll portion and first and second end shafts at both ends thereof, and a first end is formed. The part shaft and the center shaft are connected to one of the shielding plates via a shaft coupling, and a first boss is mounted on the center shaft, and a second boss is screwed onto the shaft end to hold the printing roll, A conductive jig for plating a printing roll, wherein the other shielding plate is attached to the second boss via a second end shaft.
れ、印刷ロールの端部周縁部と対向して離反した段差部
を有していることを特徴する請求項1記載の印刷ロール
のメッキ用導電治具。2. The plating for a printing roll according to claim 1, wherein the shielding plate is formed of a synthetic resin and has a stepped portion facing away from an edge of the printing roll. Conductive jig.
と対向する部分に窓穴が形成され、かつ、周端面を残す
全面が絶縁被覆された金属製の補助陰極から構成されて
いることを特徴する請求項1記載の印刷ロールのメッキ
用導電治具。3. The shielding plate is formed of a metal auxiliary cathode having a window hole formed in a portion facing the peripheral edge portion of the printing roll and having an insulating coating on the entire surface excluding the peripheral end surface. The conductive jig for plating a print roll according to claim 1, wherein:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34273293A JP2789576B2 (en) | 1993-08-06 | 1993-12-16 | Conductive jig for plating printing rolls |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5-46859 | 1993-08-06 | ||
JP4685993 | 1993-08-06 | ||
JP34273293A JP2789576B2 (en) | 1993-08-06 | 1993-12-16 | Conductive jig for plating printing rolls |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0797700A JPH0797700A (en) | 1995-04-11 |
JP2789576B2 true JP2789576B2 (en) | 1998-08-20 |
Family
ID=26387005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP34273293A Expired - Fee Related JP2789576B2 (en) | 1993-08-06 | 1993-12-16 | Conductive jig for plating printing rolls |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2789576B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4290354B2 (en) * | 2001-08-09 | 2009-07-01 | 株式会社リコー | Method for producing seamless endless member |
JP4977046B2 (en) * | 2008-01-21 | 2012-07-18 | Jx日鉱日石金属株式会社 | Edge overcoat prevention device and electroplating material manufacturing method using the same |
JP2010270381A (en) * | 2009-05-25 | 2010-12-02 | Kida Seiko Kk | Holder for plating cylindrical and sac-like workpiece |
JP5451182B2 (en) * | 2009-05-25 | 2014-03-26 | 木田精工株式会社 | Jig for plating processing of cylindrical bag-shaped workpiece |
CN108226729B (en) * | 2018-02-02 | 2020-02-18 | 钱立文 | High-precision film electric weak point tester |
-
1993
- 1993-12-16 JP JP34273293A patent/JP2789576B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0797700A (en) | 1995-04-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4259166A (en) | Shield for plating substrate | |
JP2789576B2 (en) | Conductive jig for plating printing rolls | |
KR100196095B1 (en) | Electroplating method and apparatus for the preparation of metal foil and split insoluble electrode used therein | |
US3806139A (en) | Piston ring | |
CN113373496A (en) | Electrochemical treatment auxiliary electrode and use method | |
JPS5824507B2 (en) | Improved drum equipment for producing electrodeposited copper foil | |
US3928167A (en) | Improvements in methods of producing electrolytic anode assemblies | |
US3858507A (en) | Cylindrical stencil with plastic end rings | |
US2323952A (en) | Plating cradle | |
SK62397A3 (en) | Process for producing a corrosion and wear-resistant oxide layer with locally reduced layer thickness on the metal surface of a workpiece | |
US4746410A (en) | Current collecting assembly for a rotatable body | |
JP7264545B1 (en) | Partial plating jig | |
CN220952158U (en) | Electroplating clamp for electroplating diamond grinding wheel | |
US1151317A (en) | Method of reproducing intaglio-printing surfaces. | |
KR20220028910A (en) | Jig for electroplating | |
JPH04312889A (en) | Intaglio printing and its manufacture | |
JP3531136B2 (en) | Electrodeposition drum for metal foil | |
CN220393946U (en) | Cathode roller for electrolytic copper foil | |
JP3553095B2 (en) | Metal coat roll | |
JPH0337132Y2 (en) | ||
JP2002332587A (en) | High-velocity electrodeposition drum and method of manufacturing for the same | |
JPH06328593A (en) | Production of roll made of fiber reinforced resin | |
KR970005072Y1 (en) | Structure of aluminium foil processing apparatus | |
JPH0352553B2 (en) | ||
JP2980847B2 (en) | Plating anode |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980511 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080612 Year of fee payment: 10 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090612 Year of fee payment: 11 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090612 Year of fee payment: 11 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100612 Year of fee payment: 12 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110612 Year of fee payment: 13 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110612 Year of fee payment: 13 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120612 Year of fee payment: 14 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120612 Year of fee payment: 14 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130612 Year of fee payment: 15 |
|
LAPS | Cancellation because of no payment of annual fees |