KR102241423B1 - System for Preventing Spark of Electrode Rail for Anodizing Treatment - Google Patents

Abstract

The present invention relates to a spark prevention system of an electrode rail for anodizing treatment and, more specifically, to a spark prevention system of an electrode rail for anodizing treatment, capable of preventing a spark from being generated directly on a holder holding a plating target moving on an electrode rail into which anodic power is inserted, while minimizing a section of an insulation block provided to secure insulation between preceding and following anodic bus bars, thereby extending an anodizing treatment time for the plating target, which can lead to an extension in the anodizing treatment time for the plating target, and eliminating the need for employing a separate spark prevention structure for the holder moving on the electrode rail, which can lead to the simplification of a contact part structure of the electrode rail and the holder, thereby bringing about an advantage in the maintenance and management of the electrode rail and the holder.

Description

System for Preventing Spark of Electrode Rail for Anodizing Treatment

The present invention relates to a system for preventing sparks of an electrode rail for anodizing treatment, and more particularly, to a system for preventing sparks from occurring during movement by placing a metal for anodizing treatment and contacting along the electrode rails.

_{In general, anodizing (anodizing) is an oxide film (aluminum oxide: Al 2} O) that has great adhesion to the base metal by oxygen generated from the anode when metal or parts are placed on the anode and electrolyzed in a dilute-acid electrolyte. ₃ ) is formed. Anodic oxidation is a compound word of Anode and Oxidizing (Ano-dizing). In addition, in electroplating, there is a difference from plating a metal part on the cathode. The most representative material for anodization is aluminum (Al), in addition to anodizing metal materials such as magnesium (Mg), zinc (Zn), titanium (Ti), tantalum (Ta), hafnium (Hf), and niobium (Nb). We are processing. Recently, the use of anodizing magnesium and titanium materials is gradually increasing.

Anodizing on Aluminum Alloys, which treats an oxide film on the surface of an aluminum material, when aluminum is electrolyzed from the anode, the aluminum surface becomes half eroded, and half an aluminum oxide film is formed. Aluminum anodizing (anodizing) can form a film having different properties depending on the composition and concentration of various electrolyte (treatment) solutions, additives, temperature, voltage, and current of the electrolyte.

As a characteristic of the anodized film, the film is a dense oxide, which has excellent corrosion resistance, improves the decorative appearance, and the anodic film is quite hard, has excellent abrasion resistance, improves paint adhesion, and improves bonding performance, It improves lubricity, exhibits a unique color for decorative purposes, allows pretreatment of plating, and detects surface damage.

In particular, the characteristic of hard anodizing is that low-temperature (or room temperature) electrolysis due to the alloy characteristics of aluminum is a low-temperature electrolysis method _{in H 2} SO _{4 solution.} If it is at least 30㎛ or more, it can be said to be hard. It is a method of changing the surface of aluminum metal into alumina ceramic by using electric and chemical methods. When this method is applied, aluminum metal itself is oxidized to change into alumina ceramic, and the properties of the aluminum surface are stronger than steel and abrasion resistance is superior to hard chromium plating. It does not peel off like plating or painting (coating), and the changed alumina ceramic surface has excellent electrical insulation (1,500V), but electricity flows well inside. Cutting-edge technology using a hard-anodizing surface treatment method has been developed and applied to such aluminum metal.

In order to treat aluminum metal with hard anodizing, aluminum metal is immersed in an electrolytic bath containing an electrolytic solution of an acidic solution, and then a certain voltage and current is passed to form an oxide film on the surface of the metal, depending on the voltage and current applied to the electrolyzer. The thickness of the oxide film varies.

Therefore, conventionally, in order to increase the film thickness of the aluminum metal, the aluminum metal was immersed in an electrolytic bath to which a low voltage and current was applied to apply a film of a certain thickness, and then the film was formed by moving the aluminum metal to the electrolytic bath to which a relatively high voltage and current was applied. . That is, a plurality of electrolyzers having different voltages and currents were prepared, and aluminum metal was sequentially immersed in the corresponding electrolyzer to increase the film thickness.

Therefore, in order to increase the film thickness of aluminum metal, many electrolyzers and additional devices were required. In addition, in order to increase the thickness of the metal film, the time required is increased, and there is a problem that the manpower and cost for the anodizing treatment of the aluminum metal are increased.

And in a general electrolyzer that rectifies and applies voltage and current through a rectifier that rectifies alternating current (AC) to direct current (DC), the film thickness of aluminum metal is approximately 50 μm. In most cases, the film thickness is determined according to the material of aluminum, which is the object to be plated, or the type of aluminum alloy. In particular, as the composition ratio of aluminum is lower, the thickness of the film becomes thinner or hardly formed. In addition, there was a problem in that corrosion resistance and hardness were weak due to the limited thickness of the film.

In addition, the color of the surface coating of the object to be plated varies depending on the thickness of the coating. However, if the thickness of the coating is limited, there is a problem that it is difficult to implement various colors.

In order to solve such a problem, the present applicant has registered Patent No. 10-1048013 (Ref. 1), Registered Patent No. 10-1635786 (Reference 2), and Registered Patent No. 10-2117204 (Ref. 3). I have suggested.

The reference 1 relates to a metal anodizing rack, in which an object to be plated is immersed in an electrolytic bath in which an electrolyte is stored, and power is applied to the electrolyte to anodize the object to be plated. Formed rod; Arms formed on the left and right sides of the lower portion of the rod; A plate axially coupled to an upper portion of the rod through a plurality of rollers; And a spark arrester fixedly coupled to one side of the rod and the plate, wherein a plurality of rollers are in surface contact on the anode rail installed on the electrolyzer, and a transfer block fixed to the chain coupled to the sprocket pushes the upper portion of the rod to rotate. In addition, there is proposed a metal anodizing rack on which a hanger on which a plated object immersed in the electrolytic cell is mounted is mounted.

The reference 2 relates to a system for preventing sparks of an electrode rail for anodizing metal, and is provided in an electrolytic cell in which an electrolyte is stored, and the preceding anode booth bar and the trailing anode booth bar are supplied with the preceding power and the following power by dividing a certain section. Anodizing treatment of metal provided with a mounting block provided with a mounting block provided in the lower part of the body and a terminal block that receives the anode power by surface contact with the anode line with an insulating block coupled therebetween. A system for preventing sparks of an anode rail, comprising: an energized bus bar installed in the insulation block while maintaining an insulation state with the anode bus bar and capable of supplying a subsequent power supply; Sensing means for sensing when the body of the mounting block enters the energizing booth bar and outputting a sensing signal; When a sensing signal is input from the sensing means, the terminal block of the mounting block passes through the preceding anode busbar and enters the insulating block, and it is determined that it has been in contact with the energizing booth bar, and then supplying subsequent power to the energizing booth bar, and from the sensing unit. And a control unit that determines that the terminal block has entered the trailing anode bus bar when there is no input of the detection signal, and blocks the supply of the trailing power to the energizing bus bar.

In addition, Reference 3 relates to a spark prevention system for electrode rails for anodizing treatment, which is provided in an electrolytic cell for anodizing metal, divides a certain section, and insulates between the preceding and following anode booth bars to which the preceding power and the following power are applied respectively. In the spark prevention system of the anode rail for anodizing of metal equipped with a mounting block provided with a mounting block provided with a mounting block on the lower part of the body and mounting a hanger on which the plated object is mounted. In; A buffer booth bar provided in the insulating block to maintain an insulation state from the preceding and following anode bus bars and capable of supplying a preceding power or a subsequent power supply; First sensing means provided above the second half of the preceding anode bus bar and outputting a first detection signal when the terminal block reaches the second half of the preceding anode bus bar; Second sensing means provided on the upper side of the buffer bus bar and outputting a second detection signal when the terminal block reaches the buffer bus bar; When a first detection signal is input from the first detection means, it is determined that the terminal block is scheduled to enter the insulation block out of the preceding anode bus bar, and the preceding power supplied to the preceding anode bus bar is supplied to the buffer bus bar, and the second detection When a second detection signal is received from the means, it is determined that the terminal block completely escapes from the preceding anode bus bar and enters the buffer bus bar of the insulating block, and the control unit inputs the subsequent power supplied to the subsequent anode bus bar to the buffer bus bar; and do.

However, the rack in Reference 1 above has a high risk of failure due to its complex structure, and the spark prevention system in References 2 and 3 is a trailing anode booth when the mounting block provided with the mounting stand completely escapes from the preceding anode booth bar and enters the insulating block. As a structure for supplying power to the trailing side of the bar, this structure requires that the section length of the insulating block is relatively long compared to the front and rear length of the mounting block to stably prevent sparks through power switching, so that the section of the mounting block becomes longer. Accordingly, there is a problem in that the anodizing treatment time of the object to be plated is short and the anodizing treatment efficiency is low.

That is, the conventional method has a problem in that the insulation section for power conversion is lengthened to prevent sparks.

Reference 1: Registered Patent No. 10-1048013 Reference 2: Registered Patent No. 10-1635786 Reference 3: Registered Patent No. 10-2117204

Therefore, the present invention for solving the problems of the prior art is to minimize the section of the insulating block provided to secure insulation between the preceding and following anode busbars for anodizing of the plated object, and the plated object is mounted to the electrode rail. It is to provide a spark prevention system of an electrode rail for anodizing treatment that can prevent sparks from occurring in a mounting hole that is in contact with and moves along the path.

In particular, the present invention can extend the anodizing treatment time of the plated object by minimizing the section of the insulating block provided to secure insulation between the preceding and following anode busbars when the mounting hole moves the electrode rail for the anodizing treatment of the plated object. It is to provide a spark prevention system for electrode rails for anodizing treatment.

The present invention in order to solve such a technical problem;

In the spark prevention system of an electrode rail in which an insulating block is connected between the preceding and following anode booth bars, which are provided in an electrolytic bath for metal anodizing, where the plated object is mounted, and are in contact with each other. , A mounting hole detecting means provided at the entrance of the insulating block of the electrode rail to detect a mounting hole; and, while a detection signal is input from the mounting hole detecting means, supplying the trailing power of the trailing anode booth bar to the preceding anode booth bar And a power switching device that blocks the supply of power from the trailing anode busbar to the preceding anode busbar when a detection signal is not input from the mounting hole detecting means. Provides.

In this case, the mounting hole detecting means is a limit switch or an infrared detection sensor provided at the entrance of the insulating block of the electrode rail to detect the mounting hole.

In addition, the power conversion device includes a water tank in which a buffer space filled with a buffer solution is formed, a fixed terminal fixed to the bottom of the buffer space so as to be immersed in the buffer solution of the water tank and electrically connected to the preceding anode booth bar, and an upper side of the water tank. A lifting terminal provided to be able to move up and down and electrically connected to the trailing anode busbar, and while a detection signal is input from the mounting hole detection means, the lifting terminal is lowered so as to contact the buffer solution and the fixed terminal, and the mounting hole is detected. And an elevating means for moving the fixed terminal upward so as to separate the fixed terminal from the buffer solution in the water tank by raising the elevating terminal when a sensing signal is not input from the means.

In addition, the upper side of the water tank is opened and a buffer space filled with a buffer solution is formed, and a fixed terminal electrically connected to the preceding anode bus bar is fixed on the bottom of the buffer space, and a buffer solution input pipe for replenishing the buffer solution is connected to the tank. And, the buffer solution input pipe is characterized in that the on-off valve is provided.

In addition, the upper side of the water tank is opened and a buffer space filled with a buffer solution is formed, and a fixed terminal electrically connected to the preceding anode bus bar is fixed on the bottom of the buffer space, and at one side of the tank, the buffer solution is at a constant level in the buffer space. It characterized in that the drain pipe is connected to maintain the.

In addition, the elevating means is made of a pneumatic cylinder or a solenoid structure, and the elevating means is controlled by an elevating controller according to whether a detection signal is input by the mounting hole detection means.

The spark prevention system of the electrode rail for anodizing treatment according to the present invention prevents sparks from occurring in the mounting hole where the plated object moving the electrode rail to which the anode power is supplied, while securing insulation between the preceding and following anode booth bars. It is possible to minimize the section of the insulating block provided to extend the anodizing treatment time of the object to be plated.

In addition, according to the present invention, the section of the insulating block can be minimized, so that even if the space inside the anodizing apparatus is limited, the anodizing treatment time of the object to be plated can be extended, so that the efficiency of the anodizing treatment of the object to be plated can be maximized. As a separate structure for preventing sparks is not required for the moving mounting hole, the structure of the contact part between the mounting hole and the electrode rail can be simplified, which is advantageous for the maintenance of the mounting hole and the electrode rail.

1 is an overall perspective view of an anodizing treatment apparatus to which a spark prevention system of an electrode rail for anodizing treatment according to the present invention is applied.
2 is an overall plan view of an anodizing apparatus to which a spark prevention system of an electrode rail for anodizing treatment according to the present invention is applied.
3 is a main configuration diagram of a spark prevention system of an electrode rail for anodizing treatment according to the present invention.
4A to 4D are views sequentially showing the operating state of the spark prevention system of the electrode rail for anodizing treatment according to the present invention.
5 is a main configuration diagram of a spark prevention system of an electrode rail for anodizing treatment according to another embodiment of the present invention.
6 is an overall plan view of an anodizing apparatus according to another embodiment to which the spark prevention system of the present invention is applied.

Hereinafter, the characteristics of the spark prevention system of the electrode rail for anodizing treatment according to the present invention may be understood by the embodiments described in detail with reference to the accompanying drawings.

Since the present invention can make various changes and have various forms, embodiments will be described in detail in the text. However, this is not intended to limit the present invention to a specific form of disclosure, and it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

1 to 4, in the spark prevention system of the electrode rail for anodizing treatment of the present invention, the mounting hole 10 on which the metal plated object 1 for anodizing treatment is mounted is used to anodize the surface of the plated object 1 Surface contact with the electrode rail 20 of the electrolyzer 2 that performs the film treatment by suppressing sparks that may occur between the mounting hole 10 and the electrode rail 20 when moving, thereby preventing the electrode rail 20 and the mounting hole 10. It is to extend the life of the electrode rail 20 and the mounting hole 10 by minimizing the loss of ).

At this time, the metal anodizing apparatus is provided with an electrode rail 20 that is installed in a caterpillar manner on the top of the electrolyzer 2 in which the electrolyte solution of a certain capacity is stored to supply the anode power, and supplies the cathode power into the electrolyzer 2 A cathode line is provided. At this time, the driving sprocket (3a) and the driven sprocket (3b) installed inside the electrode rail (20) at a certain distance are connected in a caterpillar fashion by a chain (3), and the positive electrode through the electrode rail (20) is connected to the chain (3). A plurality of transfer blocks 33 for transferring the mounting hole 10 in a state in which the object to be plated 1 is mounted while receiving power are mounted at regular intervals.

Such an anodizing apparatus for metal has been described in detail in Registration Patent No. 10-1048013 (Reference 1) previously filed by the present applicant, and a detailed description thereof will be omitted.

At this time, the transfer block 33 has one end integrally fixed to the chain 3 and protrudes in the direction of the electrode rail 20 receiving positive power, supports the rear end of the mounting hole 1, and moves the mounting hole 10. Is moved along the electrode rail (20).

Such a mounting hole 10 is provided with a supporting part 12 that is in contact with the top of the electrode rail 20 on the upper side of the body 11 and covers both sides to prevent separation, and a plating object (1) at the bottom of the body 11 ) Is provided with at least one arm 13 on which it is mounted. The support part 12 has a'┏┓' shape so as to surround the upper part of the electrode rail 20 to prevent separation while moving along the electrode rail 20, and the mounting hole 10 having this structure has various structures. Variant design is possible.

Meanwhile, the electrode rail 20 is installed in a caterpillar manner on the top of the electrolyzer, and an insulating block provided between the preceding and following anode bus bars 21 and 22 and the preceding and following anode bus bars 21 and 22 23) are integrally combined, and the mounting hole 1 on which the plated object 1 is mounted is in surface contact.

These insulating blocks 23 are integrally coupled to secure an insulating buffer section between the preceding and following anode busbars 21 and 22. At this time, the front and rear lengths (section lengths) of the insulating block 23 are shorter than the front and rear lengths of the support 12 constituting the mounting hole 10. In particular, it is preferable to form as short as possible as long as the insulation between the preceding and following anode busbars 21 and 22 is guaranteed. This means that even in a state in which the mounting hole 10 moves along the electrode rail 20 and enters the trailing anode bus bar 22 through the insulation block 23, the support 12 is not only the insulation block 23, but also the preceding and It makes a state of contacting the trailing anode busbars 21 and 22 at the same time.

The preceding and following anode busbars 21 and 22 may be made of a copper material, and may be made of various alloy materials having excellent electrical conductivity so as to further improve strength.

And the plurality of preceding and following anode booth bars (21, 22) can be coupled while maintaining a constant interval by a plurality of insulating blocks (23), the preceding and following anode booth bars (21, 22), the control unit 30 According to the control of the first and second rectifiers 31 and 32, the preceding power (V _F ) and the following power (V _L ) are respectively applied to each of the first and second rectifiers 31 and 32, respectively, so that the anodizing process of the plating object 1 can be performed step by step. The preceding power (V _F ) may be, for example, 10V, and the following power (V _L ) may be 12V.

At this time, the insulating block 23 is made of a material such as synthetic resin so that the insulating state between the preceding and following anode busbars 21 and 22 provided at adjacent front and rear ends coupled to the insulating block 23 is maintained.

On the other hand, the power source for the formation of the oxide film on the object to be plated (1) is independently selected from the preceding and following anode busbars (21, 22) with various DC voltages such as 10V, 12V, and 20V within the range of 10 to 50V. I put it in. For example, 10V of preceding power (V _F ) may be applied to the preceding anode bus bar 21, and 12V of trailing power (V _L ) may be applied to the following anode bus bar (22). And the control unit 30 controls the first and second rectifiers 31 and 32 made of SCR (Silicon Controlled Rectifier) to the preceding and following anode busbars 21 and 22 with preceding and following power sources V _F , V _L ) is input or blocked to perform an anodizing treatment of the object to be plated 1 in stages. For example, the control unit 30 may be formed of a microcomputer or the like.

The spark prevention system of the electrode rail for anodizing treatment of the present invention provided in such a metal anodizing apparatus is provided at the entrance of the insulating block 23 of the electrode rail 20 to detect the mounting hole 10 While the detection signal is input from the means 100 and the mounting hole detection means 100, the trailing power (V _L ) of the trailing anode bus bar 22 is supplied to the preceding anode bus bar 21, and the mounting Including a power switching device 200 that blocks the input _{of the trailing power (V L} ) of the trailing anode bus bar 22 to the preceding anode bus bar 21 when a detection signal is not input from the old detection means 100 do.

A plurality of such spark prevention systems are installed and operated adjacent to the insulating block 23 for each section of the electrode rail 20.

Hereinafter, the configuration of each part of the present invention will be described in detail.

First, the mounting hole detecting means 100 is provided at the entrance portion of the insulating block 23 of the electrode rail 20 to sense the mounting hole 10 and may be configured as a limit switch 110.

The limit switch 110 generates a detection signal when the mounting hole 10 is in contact, and generates a detection signal from the point when the front end of the mounting hole 10 is in contact (switch ON signal), and the mounting hole 10 When the mounting hole 10 is not in contact due to the movement, a detection signal does not occur (switch OFF signal).

According to this structure, the mounting hole 10 moves and the front end of the mounting hole 10 body 11 or the mounting portion 12 contacts the switch lever 112 of the limit switch 110 and rotates to generate a detection signal. (Switch ON signal) and in a state in which such a detection signal is continuously generated, when the switch lever 112 passes through the rear end of the mounting hole 10 and does not contact, a detection signal is not generated (switch OFF signal).

That is, the limit switch 110 continuously outputs a detection signal only in a state in which the mounting hole 10 is in contact.

In addition to the limit switch 110, such a mounting hole detection means 100 includes various types of mounting hole detection means 100 such as the light emitting unit 120 and the light receiving unit 122 of the infrared detection sensor, which is a non-contact method, as shown in FIG. 5. ).

On the other hand, the power switching device 200, while the detection signal is input from the mounting hole detection means 100, the trailing power (V _L ) of the trailing anode bus bar 22 to the preceding anode bus bar 21 When the input and the detection signal from the mounting hole detection means 100 is not inputted, the _{subsequent power supply (V L} ) of the trailing anode bus bar 22 is blocked from being supplied to the preceding anode bus bar 21.

Such a power switching device 200 includes a water tank 210 in which a buffer space 212 filled with a buffer solution W is formed, and a bottom surface of the buffer space 212 so as to be immersed in the buffer solution W of the water tank 210 A fixed terminal 220 that is fixed to and is electrically connected to the preceding anode bus bar 21, and is provided to be liftable on the upper side of the water tank 210 and is electrically connected to the trailing anode bus bar 22 While the sensing signal is input from the terminal 230 and the mounting hole detection means 100, the lifting terminal 230 is lowered to come into contact with the buffer solution W and the fixed terminal 220, and the mounting hole is detected. When the sensing signal is not input from the means 100, the lifting terminal 230 is raised, and the fixed terminal 220 includes a lifting means 240 for moving upward so that the fixed terminal 220 is separated from the buffer solution W of the water tank 210. .

First, the upper side of the water tank 210 is opened and a buffer space 212 filled with a buffer solution W is formed, and a fixed terminal electrically connected to the preceding anode bus bar 21 on the bottom surface of the buffer space 212 220 is fixed. At this time, if the water tank 210 has a structure capable of filling the buffer solution W, various containers may be used, and the buffer solution W may use tap water (or purified water), for example, and fills the buffer space 212 so as not to overflow. .

When the buffer solution (W) is filled in the buffer space (212) as described above, the lifting terminal (230) descends to prevent sparks from being first contacted with the buffer solution (W), or to generate a weak spark on the surface of the buffer solution (W). As the lifting terminal 230 contacts the buffer solution (W) and the fixed terminal 220, the trailing power (V _L ) inputted to the trailing anode busbar 22 is preceded by the fixed terminal 220. As it is inserted into the anode bus bar 21, direct spark generation is prevented when the mounting hole 10 contacts the preceding and following anode bus bars 21 and 22.

At this time, the fixed terminal 220 and the elevating terminal 230 may be made of a copper material, and may be made of various alloy materials having excellent electrical conductivity so as to further improve strength.

In addition, a buffer solution input tube 250 for injecting the buffer solution W is connected to the water tank 210 so that the buffer solution W may not be insufficient in the buffer space 212. At this time, the buffer solution input pipe 250 is provided with an on-off valve 252 so that the operator can open and close it.

In addition, a drain pipe 260 is connected to one side of the water tank 210 to maintain a constant water level in the buffer space 212 when the buffer solution input pipe 250 is injected into the buffer solution W such as tap water. When replenishing the buffer solution (W) to the buffer space (212) of the water tank (210) through the buffer solution input tube (250), the buffer solution (W) is connected to the set height in the buffer space (212) the drain pipe (260). By being discharged through, the buffer solution W does not overflow to the top of the buffer space 212 and maintains a constant water level.

On the other hand, the elevating means 240 lowers the elevating terminal 230 while the sensing signal is input from the mounting hole detecting means 100, and when a sensing signal is not input from the mounting hole sensing means 100, the elevating terminal By raising 230, it may be configured as a pneumatic cylinder 242. At this time, a rod 242b is provided to be elevating under the body 242a of the pneumatic cylinder 242, and the elevating terminal 230 is integrally fixed to the rod 242b.

According to this structure, when a detection signal is input from the mounting hole detection means 100, the rod 242b of the pneumatic cylinder 242 descends, and when a detection signal is not input from the mounting hole detection means 100, the pneumatic cylinder 242 The rod 242b of the rises and returns.

At this time, the elevating means 240 is provided with a separate elevating controller 241, and the elevating controller 241 is configured with the elevating port detecting means ( 100) can be controlled, but when a detection signal is inputted or not inputted from the mounting hole detection means 100 to the control unit 30, the control unit 30 may raise and lower the rod 242b of the pneumatic cylinder 242. .

Of course, the elevating means 240 may apply a hydraulic cylinder in addition to the pneumatic cylinder 242, or may be configured as a solenoid 240a as shown in FIG. 5, and the present invention provides various elevating means 240 according to the situation. Can be applied alternatively.

The spark prevention system of the electrode rail for anodizing treatment according to the present invention can be applied to the automated metal anodizing treatment system as shown in FIG. 6. The automated anodizing processing system of FIG. 6 is registered patent No. 10-1581207 previously applied by the present applicant.

Hereinafter, a driving example of the spark prevention system of the electrode rail for anodizing treatment according to the present invention will be described with reference to FIGS. 4A to 4D.

As the chain (3) rotates, the transfer block (33) transfers the mounting hole (10) in the state in which the object to be plated (1) is mounted, so that the mounting hole (10) is in surface contact with the electrode rail (20). Move. At this time, while the mounting hole 10 is in surface contact with the electrode rail 20 and is moving, the control unit 30 controls the preceding and following power sources (V _F , V _L ) to the preceding and following anode booth bars of the electrode rail 20 ( The first and second rectifiers 31 and 32 are controlled so that they are continuously input to 21 and 22, respectively.

Accordingly, the first and second rectifiers 31 and 32 made of SCR (Silicon Controlled Rectifier) input the preceding and trailing power sources V _F and V _L to the electrode rail 20 to perform anodizing treatment to obtain a plated object ( An oxide film is formed on the surface of 1). While forming an oxide film on the surface of the object to be plated (1), the chain (3) continues to rotate, and accordingly, the mounting block (10) moves along the electrode rail (20).

At this time, as shown in Fig. 4 (a), when the body 11 or the mounting portion 12 of the mounting hole 10 is located only in the preceding anode bus bar 21, the mounting hole detecting means 100 is a mounting hole ( As a state in which 10) is not detected, the detection signal of the mounting hole detection means 100 is not input to the lift controller 241. Accordingly, the lifting terminal 230 fixed to the rod 242b of the lifting means 240 does not contact the buffer solution W filled in the buffer space 22a and maintains a state positioned above the buffer solution W.

Thereafter, as shown in (b) of FIG. 4, when the body 11 or the mounting portion 12 of the mounting hole 10 approaches the insulating section 23, the mounting hole detection means 100 detects and generates a detection signal. And is input to the lift controller 241. Accordingly, the lift controller 241 controls the lift means 240 to lower the lift terminal 230 to contact the buffer solution W filled in the buffer space 22a. At this time, when the elevating terminal 230 contacts the buffer solution W while the trailing power supply (V _L ) is applied to the elevating terminal 230, a spark does not occur, or a spark is generated from the surface of the buffer solution (W) in the buffer space (23a). It is suppressed to occur weakly. _{In this case, the trailing power V L} of the trailing anode bus bar 22 is slightly provided to the preceding anode bus bar 21 through the fixed terminal 220.

And, as shown in Figure 4 (c), when the body 11 or the mounting portion 12 of the mounting hole 10 enters the trailing anode booth bar 22 through the insulating section 23, the mounting hole detection means ( 100) continuously generates a detection signal and is input to the lift controller 241. Accordingly, the elevation controller 241 controls the elevation means 240 to further lower the elevation terminal 230 so that the elevation terminal 230 contacts the fixed terminal 220 and the trailing power of the trailing anode booth bar 22 ( V _L ) is stably provided to the leading anode bus bar 21 through the fixed terminal 220, and in this case, sparks occur even when the mounting hole 10 is in contact with the preceding and trailing anode bus bars 21 and 22 at the same time. This is prevented.

Thereafter, as shown in (d) of FIG. 4, when the body 11 or the mounting portion 12 of the mounting hole 10 completely leaves the insulating section 23 and completely enters the trailing anode booth bar 22, the mounting hole is detected. The means 100 does not detect the mounting hole 10. Accordingly, the lift controller 241 controls the lift means 240 to raise the lift terminal 230 so that the lift terminal 230 does not come into contact with the buffer solution W filled in the buffer space 22a, but the buffer solution W Keep it located on the upper side of. _{Accordingly, the trailing power V L} of the trailing anode bus bar 22 that has been applied to the preceding anode bus bar 21 is cut off, so that the preceding power supply V _{F is} supplied to the preceding anode bus bar 21.

This method simplifies the structure of the mounting hole 10 and the electrode rail 20 while preventing the occurrence of sparks between the mounting hole 10 and the electrode rail 20 when the mounting hole 10 moves the electrode rail 20 And, by minimizing the loss of the mounting hole 10 and the electrode rail 20, it is possible to extend the life of the mounting hole 10 and the electrode rail 20 and reduce maintenance costs.

Although the embodiments of the present invention have been described in detail as described above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to those substantially equal to the embodiments of the present invention.

1: Object to be plated 2: Electrolyzer
10: mounting hole 20: electrode rail
21: leading anode bus bar 22: trailing anode bus bar
23: insulation block 100: mounting hole detection means
110: limit switch 200: power switching device
210: water tank 220: fixed terminal
230: elevating terminal 240: elevating means
250: buffer solution input pipe 260: drain pipe

Claims (6)

Leading and trailing anodes provided in the electrolyzer 2 for metal anodizing treatment, where the mounting hole 10 on which the object to be plated (1) is mounted is in contact with the surface, and the leading power (V _F ) and the trailing power (V _{L) are respectively input} In the spark prevention system of the electrode rail 20, the insulating block 23 is coupled between the bus bars (21, 22),
A mounting hole detecting means 100 provided at an entrance portion of the insulating block 23 of the electrode rail 20 to detect the mounting hole 10, and while a detection signal is input from the mounting hole detecting means 100, the When the trailing power supply (V _L ) of the trailing anode bus bar 22 is supplied to the preceding anode bus bar 21 and a detection signal is not input from the mounting hole detection means 100, the trailing anode bus bar 22 is And a power conversion device 200 for blocking the power supply (V _L ) from being supplied to the preceding anode bus bar 21;
The power conversion device 200 includes a water tank 210 in which a buffer space 212 filled with a buffer solution W is formed, and a bottom surface of the buffer space 212 so as to be immersed in the buffer solution W of the water tank 210. A fixed terminal 220 that is fixed and electrically connected to the preceding anode booth bar 21, and a lifting terminal provided to be elevating on the upper side of the water tank 210 and electrically connected to the trailing anode bus bar 22 (230) And, while the detection signal is input from the mounting hole detection means 100, the lifting terminal 230 is lowered to come into contact with the buffer solution (W) and the fixed terminal 220, and the mounting hole detection means It includes a lifting means 240 for moving upward so that the fixed terminal 220 is separated from the buffer solution W of the water tank 210 by raising the lifting terminal 230 when the detection signal is not input from the 100. A spark prevention system for electrode rails for anodizing treatment, characterized in that.
The method of claim 1,
Anodizing, characterized in that the mounting hole detection means 100 is a limit switch 110 or an infrared detection sensor provided at the entrance portion of the insulating block 23 of the electrode rail 20 to detect the mounting hole 10 Spark prevention system for processing electrode rails.
The method of claim 1,
The water tank 210 has a buffer space 212 that is opened at the top and is filled with a buffer solution W, and a fixed terminal electrically connected to the preceding anode bus bar 21 on the bottom surface of the buffer space 212 ( 220) is fixed,
Spark of an electrode rail for anodizing treatment, characterized in that a buffer solution input pipe 250 for replenishing the buffer solution W is connected to the water tank 210, and an opening/closing valve 252 is provided in the buffer solution input pipe 250 Prevention system.
The method of claim 1,
The water tank 210 has a buffer space 212 that is opened at the top and is filled with a buffer solution W, and a fixed terminal electrically connected to the preceding anode bus bar 21 on the bottom surface of the buffer space 212 ( 220) is fixed,
A spark prevention system of an electrode rail for anodizing treatment, characterized in that a drain pipe 260 is connected to one side of the water tank 210 so that the buffer solution W maintains a constant water level in the buffer space 212.
The method of claim 1,
The lifting means 240 is made of a pneumatic cylinder 242 or a solenoid (240a) structure,
The elevating means (240) is controlled by the elevating controller (241) according to whether a detection signal is input from the mounting hole detection means (100).
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