JP2011219834A - Vertical jet plating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an upper liquid supply device and an upper liquid discharge device of a vertical jet plating apparatus, with which it becomes attainable to easily perform exchange of electrodes in the vertical jet plating apparatus, the equipment stop period due to the exchange of electrodes is shortened, and thereby, the productivity is enhanced.SOLUTION: The liquid supply device for supplying an electrolytic solution into an electrode box 1, in which electrodes 2 are arranged, is divided into a liquid receiving part 5 and a nozzle part, and the liquid receiving part 5 is communicated with and attached to the electrode box 1 and further, the liquid receiving part 5 is connected to a liquid supply pipe and made into a watertight structure. The nozzle part for uniformizing liquid supply in the width direction is arranged so as to be freely attached and detached, and positioned in the liquid receiving part 5. The liquid discharge device for discharging the electrolytic solution from the electrode box 1 is also divided, like the liquid supply device, into a liquid receiving part 5 and a rectification weir part, and the liquid receiving part 5 is communicated with and attached to the electrode box 1, and further the liquid receiving part 5 is connected to a liquid discharge pipe 19 and made into a watertight structure. The rectification weir part is arranged so as to be freely attached and detached and positioned in the liquid receiving part 5.

Description

  The present invention relates to a saddle type jet plating apparatus for electrolytically treating a metal strip surface.

  A vertical jet plating apparatus is used as a plating apparatus that continuously electroplates tin, chromium, and the like by electrolytically treating the surface of a metal strip that runs between electrodes (see Patent Document 1).

  The vertical jet plating apparatus shown in FIG. 3 is a plating apparatus that performs electrolytic plating by running a strip S between electrodes 2 arranged facing each other at a predetermined interval. Side seals are provided at both ends in the width direction, pressure equalizing chambers 21 are provided on the back side of the electrode 2, and a plurality of through holes are provided in the electrode 2 to conduct the strip running portion 11 and the pressure equalizing chamber 21. The electrode 2 provided with is disposed.

A liquid supply nozzle 23 for supplying an electrolyte solution between the electrodes 2 and a drainage box 24 for collecting and discharging the electrolyte solution discharged between the electrodes 2 are fixed to the upper portion of the electrode box 1.
A seal device composed of a dam roll 25 and a seal plate 26 for preventing the electrolyte from flowing out is provided at the bottom of the vertical jet plating apparatus.

  As shown in FIG. 4A, the liquid supply nozzle 23 is divided into a primary nozzle chamber 27 and a secondary nozzle chamber 28 in the vertical direction by a partition wall 29, and a liquid supply port is provided in each of the primary nozzle chambers 27. 30 is provided, and a partition wall 29 between the nozzle chambers 27 and 28 is provided with a slit 31 having a gap that gradually increases from the center to both sides. The liquid supply nozzle 23 is fixed in the liquid supply box 32, and the liquid supply box 31 is fixed to the flange on the upper part of the electrode box 1 with a bolt through water packing. A liquid supply pipe for supplying an electrolytic solution is connected to each liquid supply port 30 of the liquid supply nozzle 23.

  As shown in FIG. 4B, a rectifying weir 33 is fixed in the drainage box 24. The drainage box 24 is watertightly fixed to the flange on the upper part of the electrode box 1 with a bolt through a packing. A drainage pipe 34 for discharging the electrolytic solution is connected to the drainage port 34 of the drainage box 24.

  The vertical jet plating apparatus having the above-described configuration can forcibly give a flow rate to the electrolytic solution between the electrodes, and can prevent strip flapping / adsorption between the electrodes to obtain a high electrolytic current density.

JP-A-5-171495

  In the vertical jet plating apparatus described in Patent Document 1, the electrodes are exchanged as the electrodes are consumed. When the electrode is exchanged, it is necessary to remove the electrode from the inside of the electrode box and to remove and attach the upper liquid supply nozzle and the drainage box. In addition, disassembly and connection work of the connection part between the liquid supply port of the liquid supply box and the liquid supply pipe, and disassembly and connection work of the connection part between the drainage port of the drainage box and the drainage pipe occur. Because of these disassembly / connection operations, a long period of time is required for the electrode replacement operation, so that the plating equipment is stopped for a longer period, leading to a reduction in productivity.

  Therefore, the present invention makes it possible to easily replace the electrodes of the vertical jet plating apparatus, shorten the equipment stoppage period accompanying the electrode replacement, and improve productivity. A liquid device and an upper drainage device are provided.

  The present invention divides a liquid supply device that supplies an electrolytic solution into an electrode box in which electrodes are arranged, into a liquid receiving part and a nozzle part, and connects the liquid receiving part to the electrode box in communication with the liquid supply pipe. A water-tight structure is adopted, and a nozzle portion that makes the liquid supply in the width direction uniform inside the liquid receiving portion is detachably and positionably arranged.

  Further, the drainage device for draining the electrolyte solution is divided into the liquid receiving portion and the rectifying weir portion, and the liquid receiving portion is supplied to the electrode box, similarly to the liquid feed nozzle. In addition to being attached in communication, it is connected to the drainage pipe to form a watertight structure, and the rectifying weir part is arranged to be detachable and positionable inside the liquid receiving part.

  According to the present invention, when replacing the electrode, only the liquid supply nozzle or the rectifying weir part is disassembled and reassembled, and the disassembly / reconnection of the external connection pipe and the disassembly / reassembly of the liquid supply nozzle and the drainage device are omitted. As a result, the working time can be greatly shortened, and the operating time of the plating equipment can be improved.

  In addition, according to the present invention, it is possible to prevent liquid leakage by eliminating the disassembly of the connecting portion that causes liquid leakage, and there is no liquid leakage during re-operation after conventional electrode replacement.

(A) is sectional drawing of the upper liquid supply apparatus of this invention, (b) is sectional drawing of the upper drainage apparatus of this invention. It is a perspective view which shows the state which removed the liquid supply nozzle or the rectification weir in this invention. It is the schematic of the conventional saddle type jet plating apparatus. (A) is sectional drawing of the liquid supply nozzle shown in FIG. 3, (b) is sectional drawing of the drainage apparatus shown in FIG.

  Embodiments of the present invention will be described with reference to the drawings.

  The vertical jet plating apparatus to which the present invention is applied is substantially the same except for the liquid supply nozzle and the drainage device of the conventional vertical jet plating apparatus shown in FIG. Side seals are arranged at both ends in the direction, and pressure equalizing chambers are provided on the back side of the electrodes, and electrodes are provided with a number of through holes for conducting the strip running part and the pressure equalizing chamber. An electrode box is provided. A seal device composed of a dam roll 25 and a seal plate 26 for preventing the electrolyte from flowing out is provided at the bottom of the vertical jet plating apparatus.

  In FIG. 1 to FIG. 2, an upper liquid supply device 3 that supplies an electrolytic solution between the electrodes 2 and between the electrodes 2 are disposed above the plurality of electrode boxes 1 arranged in the vertical jet plating apparatus. The upper drainage device 4 for discharging the discharged electrolyte is alternately fixed to the descending line and the ascending line of the strip S.

  In the upper liquid supply device 3, the lower end of the liquid receiving portion 5 that receives the electrolytic solution made of a rectangular cylinder is supported in a watertight state by a bolt 7 via a packing 6 on the upper portion of the electrode box 1, and communicates with the electrode box 1. . The liquid receiving part 5 has a liquid supply pipe 9 connected to a liquid supply port 8 formed on the side wall. A liquid supply nozzle 10 is detachably fitted in the liquid receiving part 5.

In the liquid supply nozzle 10, a pair of primary nozzle chambers 12 and a pair of secondary nozzle chambers 13 are divided by a partition wall 14 with the strip traveling unit 11 sandwiched in the vertical direction, and an electrolyte is supplied to each primary nozzle chamber 12. An inflow liquid inlet 16 is provided. The partition wall 14 between the nozzle chambers 12 and 13 is provided with a slit 15 having a gap that gradually increases on both sides.
The electrolyte flowing in from the liquid inlet 16 is supplied from the strip passage 11, the primary nozzle chamber 12, the slit 15, and the secondary nozzle chamber 13 to the electrode 2 in the electrode box 1 through the jet port 17.

  Similar to the upper liquid supply device 3, the upper drainage device 4 is supported in a watertight state by a bolt 7 through a packing 6 at the lower end of a liquid receiving portion 5 that receives an electrolytic solution made of a rectangular tube. , Communicated with the electrode box 1.

  In the liquid receiving part 5, a drainage pipe 19 is connected to a drainage port 18 formed on the side wall. In the liquid receiving part 5, a rectifying weir 20 having a large number of holes facing the strip is detachably fitted.

In addition, as a fixing method to the liquid receiving part 5 of the liquid supply nozzle 10 or the rectification weir 20, both are fixed with the pin for fixing, a volt | bolt etc. which are not illustrated, for example.
The electrolyte flowing into the liquid receiving unit 5 from the electrode box 1 flows out from the liquid outlet 22 into the liquid receiving unit 5 while being rectified by the rectifying weir 20, and is supplied to the liquid discharge port 18 of the liquid receiving unit 5. It is discharged from the liquid pipe 19.

  In the above configuration, when the electrode 2 is replaced, the liquid supply nozzle 10 is pulled out from the liquid receiving portion 5 of the upper liquid supply device 3. By pulling out the liquid supply nozzle 10, the upper portion of the electrode box 1 is opened in the liquid receiving section 5, so that the electrode 2 can be extracted and the electrode can be inserted after the electrode is extracted. Since the electrode replacement work can be performed as it is without disconnecting the liquid supply pipe 19 connected to the liquid supply port 8 of the liquid receiver 5, the electrode replacement work time can be shortened.

  In addition, when replacing the electrode 2 with respect to the upper drainage device 4, as with the upper liquid supply device 3, the rectifier weir 20 is pulled out from the liquid receiving portion 5, thereby the electrode box 1 in the liquid receiving portion 5. Since the upper portion of the electrode is opened, the electrode 2 can be extracted, and the electrode can be inserted after the electrode is extracted. Since the drainage pipe 19 connected to the drainage port 18 of the liquid receiving part 5 can be replaced as it is without disconnecting it, the electrode replacement work time can be shortened.

1: Electrode box 2: Electrode 3: Upper liquid supply device 4: Upper liquid discharge device 5: Liquid receiving portion 6: Packing 7: Bolt 8: Liquid supply port 9: Liquid supply pipe 10: Liquid supply nozzle 11: Strip running Part 12: Primary nozzle chamber 13: Secondary nozzle chamber 14: Partition wall 15: Slit 16: Liquid inlet 17: Jet outlet 18: Drain outlet 19: Pipe for drainage 20: Rectifier weir 21: Pressure equalizing chamber 22 : Liquid outlet 23: supply nozzle 24: drainage box 25: dam roll 26: seal plate 27: primary nozzle chamber 28: secondary nozzle chamber 29: partition wall 30: liquid supply port 31: slit 32: liquid supply box 33 : Rectifier weir 34: Drainage port S: Strip

Claims (2)

An upper liquid supply device for supplying an electrolyte solution between the electrodes, and an upper drainage device for discharging the electrolyte solution from between the electrodes are arranged in cylinders, with the electrodes facing each other at a predetermined interval in the electrode box. In a vertical type jet plating apparatus for performing electrolytic plating by running a strip between the electrodes, each liquid receiving part is fixed in a watertight state in communication with the upper part of the electrode box.
When the liquid supply port of the upper liquid supply unit is connected to the liquid supply pipe and the liquid supply nozzle is detachably disposed in the liquid reception unit, and the liquid supply nozzle is fixed in the liquid reception unit, The liquid inlet and the liquid supply port of the liquid nozzle are arranged at the same position,
A drainage port of a liquid receiving part of the upper liquid draining device is connected to a drainage pipe, and a rectifying weir having a large number of through holes surrounding the strip is detachably disposed in the liquid receiving part. Vertical jet plating equipment.   2. The vertical jet plating apparatus according to claim 1, wherein the liquid receiving part is fixed to the upper part of the electrode box with a bolt through a packing.

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