JP4022115B2 - Dam type continuous immersion treatment equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention conveys a workpiece to each chemical treatment tank filled with a desired chemical solution in chemical treatment such as plating treatment, chromate treatment, aluminum anodizing treatment, electrolytic polishing, electrolytic pickling, CFC alternative cleaning, jig peeling, etc. The present invention relates to a dam type continuous immersion treatment apparatus that performs treatment while being immersed.
[0002]
[Prior art]
Conventionally, when surface treatment is performed by immersing a workpiece in a treatment solution such as plating or electrolytic degreasing, a plurality of types of treatment tanks are arranged, and the workpieces are suspended and sequentially conveyed to each treatment tank. In this case, the workpiece immersed in each chemical solution treatment tank for a certain period of time is lifted upward and conveyed to the upper portion of the adjacent treatment tank, and then the workpiece is lowered to perform a desired liquid treatment. However, in this conventional apparatus, since the workpiece is moved up and down during the conveyance, the time for the up and down movement is required, and the time of the whole process becomes longer, which is inconvenient.
[0003]
Therefore, in JP-A-7-166364 (Patent Document 1), as a dam type continuous immersion treatment apparatus, a plurality of reserve tanks are arranged before and after the plating tank and the water washing neutralization recovery tank, and these boundaries are opened and closed by gates. When moving the work between the reserve tank and the outside and between the reserve tanks, lower the liquid level of the reserve tank and open the gate to move the work between the reserve tank and the plating tank or the water washing neutralization recovery tank. At the time of movement, an apparatus is disclosed in which the gate is closed and the work level is moved so that the liquid level of each reserve tank is the same level as the plating tank and the water washing neutralization recovery tank.
[0004]
[Patent Document 1]
JP 7-166364 A
[0005]
[Problems to be solved by the invention]
In the conventional dam type continuous immersion treatment apparatus, the workpiece is not moved up and down during conveyance, there is no loss time, and each immersion treatment tank can be made smaller, thereby reducing the amount of treatment liquid to be used. Can be made.
[0006]
However, the above device is a mechanism that opens and closes the entrance gate and exit gate of the immersion treatment tank in synchronization, and when injecting treatment liquid into the reserve tank, it is necessary to close the front and rear gates, Loss time was not shortened enough.
[0007]
Moreover, since the size in the immersion treatment tank is designed to be a general size set in advance, the change of the immersion treatment conditions such as the size of the workpiece, the plating thickness, etc. can be achieved only by changing the conveyance speed. It was difficult to respond flexibly.
[0008]
Furthermore, in order to efficiently process a vertically long workpiece in a short time, it is necessary to deepen the immersion treatment tank. However, if the immersion treatment tank is deepened and the amount of liquid increases, the water pressure applied to the gate increases, and the gate The amount of liquid that leaks from the vicinity and spouts increases. This vigorously ejected liquid not only pollutes the surroundings but also necessitates cleaning of the contaminated apparatus itself, which shortens the maintenance period of the contaminated apparatus and imposes many restrictions on operation. In addition, the suspended work is shaken by the pressure of the liquid that is ejected vigorously, hitting the side wall of the work path, and damaging the work. This may cause various inconveniences.
[0009]
The present invention has been made in view of the above-described conventional problems, and has improved liquid sealing properties to solve various problems, and can be used to change immersion treatment conditions such as workpiece size and plating thickness. An object of the present invention is to provide an economical dam type continuous dipping treatment apparatus that can flexibly respond.
[0010]
[Means for Solving the Problems]
  Claim 1,5, 8 or 10According to the present invention, there is provided an immersion treatment tank group including an immersion treatment tank for immersing a workpiece in a treatment liquid and a box tank disposed before and / or after the immersion treatment tank, and the immersion treatment tank group. Conveying means for horizontally moving the workpiece along the line, gate means having liquid sealability for opening and closing the work passages provided before and after each box tank, and a valve capable of opening and closing the adjacent box tank and immersion treatment tank A communication pipe that communicates with each other through a valve, a receiving tank that receives a processing liquid discharged from a discharge port provided in the box tank via a valve, and a return that returns the liquid from the receiving tank to the corresponding immersion processing tank And a means.
[0011]
With this configuration, the box tank is provided before and after the immersion treatment tank, and gate means with improved liquid sealability for opening and closing the work passages provided before and after each box tank is provided to improve the liquid sealability and from the work passage. The dam-type continuous immersion treatment equipment is provided, which solves various problems when loading workpieces into the immersion treatment tank, so that the workpiece can be smoothly carried into the immersion treatment tank. Is something that can be done.
[0012]
  Claim1According to the present invention, the box tank has a configuration in which a plurality of box chambers are arranged in a direction orthogonal to the workpiece traveling direction, and a conversion tank is provided before and after the box tank. However, it is the structure which arrange | positions the conversion means which converts a workpiece | work into the desired traveling lane of the workpiece | work traveling lane provided in multiple numbers.
[0013]
With this configuration, gate means with improved liquid sealability is provided to prevent liquid ejection from the work path, allowing the work to be smoothly carried into the immersion treatment tank, and the suspended work to be shaken by the ejected liquid. Thus, the work is not damaged or sagging, and various inconveniences such as defective plating can be improved. In addition, by arranging multiple box chambers in parallel, the loss of time for injecting and discharging chemicals into the box tank can be shortened, and it is possible to flexibly respond to changes in immersion treatment conditions such as workpiece size and plating thickness, An economical dam type continuous dipping treatment apparatus can be provided.
[0014]
  Claim11In the invention according to the present invention, the transport means has a number of hangers for suspending and transporting the workpiece, and each hanger is provided with a plurality of suspension lower portions for suspending the workpiece in a direction orthogonal to the workpiece traveling direction. It is a configuration.
[0015]
With this configuration, in combination with the conversion means, the workpiece can be accurately traveled along the desired travel lane, and the desired immersion treatment conditions can be reliably executed.
[0016]
  Claim4,7, 9 or 10In the invention according to the present invention, the immersion treatment tank has a liquid level adjustment means, and the liquid level adjustment means provides a notch at a desired position on the side wall of the treatment tank, and adjusts an opening amount of the notch. The adjustment plate is provided on the side wall so as to be movable up and down.
[0017]
This configuration allows easy adjustment of the chemical level in the immersion tank, simplifies control of the circulation pump, etc., and makes it flexible for changing the size of workpieces transported on the line and immersion treatment conditions. It can be used as an economical device. Furthermore, coupled with providing the box tank and the conversion tank, the immersion treatment time can be freely selected according to the size of the workpiece, the immersion treatment capacity of the device can be flexibly changed, the type of workpiece, The apparatus can be flexibly adapted by changing the size and immersion treatment conditions.
[0018]
  Claim3, 6Or8In the invention according to the invention, the gate means includes a gate that is slidably opened and closed in a direction orthogonal to the work path, and a drive mechanism that drives the gate to be opened and closed.The gate slides in a slit provided in the outer wall surface of the work path and in a slide groove provided in the bottom of the work path,
Of the surface on which the gate slides, the side far from the immersion treatment tankSlidingOn the faceIs hardQuality resinThe gate is pressed against the sliding surface on the far side by the treatment liquid pressure of the immersion treatment tank and exhibits sealing properties.Near sideSlidingOn the faceIs softQuality resinWhen a force is applied in the direction in which the gate moves away from the far side sliding surface due to the treatment liquid pressure in the immersion treatment tank, the soft resin deforms slightly following the movement of the gate surface and hits the gate surface. To improve sealing performanceIt is the composition which becomes.
[0019]
With this configuration, it is possible to ensure smooth sliding of the gate while minimizing liquid leakage due to liquid pressure, and to provide gate means with higher liquid sealing performance.
[0020]
  Claim3, 6 orAccording to an eighth aspect of the present invention, the gate means includes a soft resin disposed on the opposing wall surface of the work path that contacts the main body edge of the gate and / or the gate main body edge.When the gate is pressed against the opposite wall surface of the work path, the soft resin is slightly deformed to improve the sealing performance.It is the composition which becomes.
[0021]
With this configuration, when the edge of the gate body is pressed against the opposite wall surface of the work passage, the soft resin is deformed to a small extent, and gate means with higher liquid sealability can be obtained.
[0022]
  Claim12According to the invention, the gate means has a structure in which a groove portion is formed in a work passage wall with which the main body tip of the gate abuts, and a soft resin film is disposed so as to cover an open surface of the groove portion.
[0023]
With this configuration, when the edge of the gate body is pressed against the groove portion of the work passage wall, the resin film is pushed by the edge of the gate body more than the thickness of the soft resin film and deformed into the vertical groove. The elasticity of the resin film can further improve the adhesion between the edge of the gate main body and the resin film, thereby providing a gate means with higher liquid sealability.
[0024]
  Claim13According to the invention, the gate means includes a gate that opens and closes in a direction that is slidable in a direction orthogonal to the work path, and a drive mechanism that drives the gate to open and close. A contact piece projecting on the base end side of the gate body of the gate body, the body tip of the gate and the contact piece are brought into contact with the wall surface of the box tank, and the liquid filled in the box tank is filled. It is the structure which makes it seal.
[0025]
  Claim14According to the invention, the gate means includes a gate that opens and closes so as to be rotatable with respect to the work path, and a drive mechanism that rotatably drives the gate. The gate is brought into contact with the wall surface to seal the liquid filled in the box tank.
[0026]
With such a configuration, the tip of the main body of the gate and the contact piece are in contact with the wall surface of the box tank, so that even if a high water pressure is applied to the gate, the chemical solution is ejected and scattered from these gaps. In this way, a state with a high liquid sealing property can be secured. As described above, by improving the liquid sealing property, the surroundings of the apparatus are not contaminated, and it is not necessary to clean the contaminated apparatus itself, or the interval between cleaning operations can be increased. The maintenance period can be lengthened, and the apparatus can be reduced in operation. Further, the suspended work is not shaken by the jet liquid, and the work is not damaged or sagging, and various inconveniences such as defective plating can be improved.
[0027]
  Claim15In the invention according to the present invention, the gate means is disposed so as to pivotably open and close the gate that is always biased to the work path, and the work is attached to the gate as the work moves. It is configured to push open against the force and to automatically close by the biasing force after the workpiece has passed.
[0028]
With this configuration, not only the gate driving mechanism is unnecessary, but also the gate opening / closing control is unnecessary, the structure and control can be simplified, and a more economical device can be provided.
[0029]
  Claim16According to the invention, the gate means is configured such that the gate on the side where the workpiece enters the immersion treatment tank is openable and closable, and the gate exiting from the immersion treatment tank is a so-called seal roller.
[0030]
With this configuration, not only can the number of gate drive mechanisms be reduced, but also the number of gate opening and closing controls can be reduced, the structure and control can be simplified, and a more economical device. Can be provided.
[0031]
  Claim 2 or5According to the invention, the box tank is disposed before and / or after the immersion bath for electroplating, and has a bipolar phenomenon preventing means.
[0032]
With this configuration, various problems such as poor plating and poor adhesion are observed in electroplating without causing bipolar phenomenon on the workpiece even during energization in the immersion treatment tank. Thus, it is possible to provide a device that does not cause various problems such as roughing the surface.
[0033]
In the reserve tank (box tank in the present invention) provided before and after the immersion treatment tank using electricity such as electroplating and electrolytic degreasing, the immersion treatment tank in which the chemical solution in the reserve tank communicates is energized, A so-called stray current (leakage current) also flows to the workpiece conveyed to the reserve tank, and not only electricity is wasted, but various problems such as plating failure and adhesion failure are also present in electroplating. Causes various problems such as roughening the surface of the workpiece. In the present specification, these phenomena are referred to as bipolar phenomena.
[0034]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment relating to the dam type continuous immersion treatment tank of the present invention will be described with reference to the drawings, using an example of an apparatus for electroplating a work consisting of a flexible substrate attached to a jig, followed by electrogold plating. In addition, this invention is not limited to the structure of the said drawing.
[0035]
As shown in FIG. 1, the apparatus of this example includes a treatment tank group in which each treatment tank is arranged in a substantially U shape, and a conveying means A is arranged along the treatment tank group. The workpiece W is moved horizontally by the conveying means A, and sequentially passes through the processing tanks to perform a desired liquid processing. In this case, the workpiece does not substantially move up and down. The conveying means A may use a conventionally known technique. Here, the conveying means A has a chain driven by a motor or the like, a large number of hangers are attached to the chain at equal intervals, and the workpiece W is placed under the hanger. The hanger is supported in a suspended manner and is transported horizontally along the guide frame surrounded by the processing tank group through the upper part of the processing tank group.
[0036]
Here, the immersion treatment tank D having the characteristic part of the present invention and the tanks before and after the immersion tank are the first conversion tank C from the load part R side.₁, Box tank B₁Second conversion tank C₁Electro nickel plating tank D₁The third conversion tank C_ThreeSecond box tank B₂Are arranged sequentially in a straight line, and in the subsequent process, the third box tank B_ThreeThe fourth conversion tank C_FourElectric gold plating tank D₂, Fifth conversion tank C_Five, Fourth box tank B_FourThe sixth conversion tank C₆Are sequentially arranged toward the unloading unit U side.
[0037]
As shown in FIG. 1, the box chambers B are separated from each other by a partition wall in a direction perpendicular to the workpiece traveling direction outside the entrance / exit of each immersion treatment tank D, and do not communicate with each other.₁, B₂Are arranged side by side, and as shown in FIG. 2, gate means G are arranged at the respective entrances.
[0038]
As shown in FIG. 3, the gate means G includes a plate-like gate 2 that opens and closes in a direction perpendicular to the work path 1 of the box tank B, and a slidable gate 2. A driving mechanism 3 for driving and a control mechanism (not shown) for controlling the driving mechanism 3 to open and close the gate 2 are provided.
[0039]
As shown in FIG. 4, the drive mechanism 3 of the gate 2 has a sliding rod 5 with gears (not shown) engraved on the upper and lower sides of the end portion of the gate body 4, and the sliding rod A flat gear 6 that meshes with a gear (not shown) engraved in 5 is mounted on a rotary rod 8 connected to a motor 7 and is driven to open and close the work path 1. The driving mechanism 3 of the gate 2 may be any mechanism as long as the gate can be slidably opened and closed, and the driving means is not particularly limited.
[0040]
Here, as shown in FIG. 3, a slit 11 is provided on the outer wall surface of the work path 1 of the box tank B, the gate 2 slides inside the slit 11 by the driving mechanism 3, and the gate 2 is formed on the inner surface of the slit 11. A resin member for restricting the liquid leakage to the minimum while securing the sliding is provided, and a soft resin is disposed on the stopper 13 of the opposing wall surface 12 of the work passage 1 where the end of the main body 4 of the gate 2 abuts. The liquid sealability is improved.
[0041]
That is, as shown in FIG. 25, in order to guide the sliding of the bottom of the gate body 4 as shown in FIG. A slidable hard resin 71 is disposed on a sliding surface far from the treatment tank D, and a flexible soft resin 72 is disposed on a sliding surface on the near side.
[0042]
In this way, by disposing the hard resin 71 having slidability on the sliding surface far from the immersion treatment tank D, the gate 2 is pressed against the sliding surface by the treatment liquid pressure of the immersion treatment tank D and sealed. In addition to exhibiting the properties, it is possible to ensure smooth sliding of the gate 2 against the processing solution pressure. Also, by placing a flexible soft resin 72 on the sliding surface closer to the immersion treatment tank D, a force is applied in the direction in which the gate 2 moves away from the sliding surface with the treatment liquid pressure of the immersion treatment tank D. However, the soft resin 72 can be slightly deformed following the movement of the surface of the gate 2 and can be brought into contact with the surface of the gate 2 to improve the sealing performance.
[0043]
Then, as shown in FIG. 25, a single groove 73 is vertically formed on the wall of the work passage 1 where the tip of the main body 4 of the gate 2 contacts, and a soft resin film 74 is disposed so as to cover the open surface of the groove 73. It is made up.
[0044]
As a result, as shown in FIG. 26, when the edge of the gate body 4 is pressed against the groove 73 of the wall of the work passage 1, the soft resin film 74 is pushed into the groove 73 by the edge of the gate body. The elastic force of the soft resin film 74 can improve the adhesion between the edge of the gate body 4 and the resin film 74, and the liquid leakage due to the hydraulic pressure can be minimized. It is.
[0045]
Usable resins are polyethylene, polypropylene, vinyl chloride resin, phenol resin, urea resin, melamine resin, unsaturated polyester resin, polystyrene, styrene resin, AS resin, ABS resin, methacrylic resin, polycarbonate, polyacetal, polyamide, nylon, polyurethane , Saturated polyester resin, polyvinylidene chloride, polybutadiene, EVA resin, polymethylpentene, methacrylstyrene, fluororesin, silicon resin, and the like.
[0046]
The hard resin is not particularly limited as long as it is hard and has slipperiness, and is preferably a fluororesin, ultra-high molecular polyethylene, etc., and the soft resin or soft resin film is deformed when pressed by a gate and its elasticity However, it is not particularly limited, but a resin having flexibility such as polystyrene, polybutadiene, EVA resin or the like is preferable.
[0047]
In addition to this, in order to further improve the liquid sealability, a soft resin 72 may be provided on the opposite wall surface of the work passage 1 that contacts the end of the main body 4 of the gate 2 or on the end of the gate main body 4. (Not shown). Thereby, when the edge of the gate main body 4 is pressed against the opposing wall surface of the work passage 1, the soft resin 72 is deformed to a small extent, and gate means with higher liquid sealability can be obtained.
[0048]
Moreover, each box room b arranged side by side₁, B₂As shown in FIG. 5, at the bottom thereof, a communicating pipe 22 is communicated with the bottom of the adjacent plating tank D via the electromagnetic valve 21, while a discharge port 24 is provided via the electromagnetic valve 23. A receiving tank 25 is disposed below the discharge port 24, and the plating solution accumulated in the receiving tank 25 is returned to the plating tank D via the filter F by the pump P.
[0049]
Box room b₁, B₂As shown in FIG. 3, in order to prevent bipolar phenomenon, before and after the electric nickel plating tank, it is made of a nickel metal plate so that it faces the workpiece W (with nickel metal particles in a titanium case) However, a weak current of 0.1 to 6 mmA / min is allowed to flow. In the box chambers disposed before and after the electrogold plating tank, an electrode plate made of platinum / titanium alloy (which may be a titanium plate coated with platinum) is disposed so as to face the workpiece W. A weak current of 1 to 5 mmA / min is allowed to flow. In these cases, the amount and strength of the current to flow, the material and size of the electrode, etc. may be appropriately set in consideration of the type and size of the workpiece, plating solution, plating conditions, etc., and are not limited thereto. .
[0050]
As shown in FIG. 2, the conversion tank C disposed before and after each immersion treatment tank D is provided with conversion means 31 for converting the workpiece W to the front traveling or the rear traveling, and the immersion treatment tank D. Is wider in the direction orthogonal to the workpiece traveling direction. In addition, it does not limit to forming so that it is wider than an immersion treatment tank in this way.
[0051]
As shown in FIG. 9, the conversion means 31 includes a guide rail 32 orthogonal to the workpiece traveling direction above the conversion tank C, a carriage 33 traveling on the guide rail 32, and a conversion attached to the carriage 33. The arm 34 is provided. The conversion means 31 hangs down the conversion arm 34 from the carriage 33 that has traveled on the guide rail 32 and moved to the near side, and holds the upper arm 36 of the jig placed on the hanger 35 with the conversion arm 34. Then, the gripping conversion arm 34 is raised. Thereafter, as shown in FIG. 10, the carriage 33 is slid to a desired position on the back side, the conversion arm 34 is again hung down at this position, and the upper arm 36 of the gripped jig is moved to the back side of the hanger 35. Place. As a result, the work is conveyed along the traveling lane on the back side. Reference numeral 37 denotes a suspended portion.
[0052]
The electric nickel plating tank and the electrogold plating tank, which are the immersion treatment tank D, are conventional rectangular bodies having an open upper surface having a desired length and depth in consideration of processing time, processing capacity, and the like, Along the traveling direction of the workpiece W, electrode portions are arranged at predetermined intervals on both inner wall surfaces. As shown in FIG. 2, a liquid level adjusting means 41 is provided on the side wall 42 of each immersion treatment tank D, and a surrounding wall 43 for collecting the overflowed chemical liquid and storing it in a receiving tank (not shown). It is provided so as to surround the surface adjusting means 41.
[0053]
In the case of the immersion treatment tank D for electro nickel plating, the liquid level adjusting means 41 is provided with a notch 44 that opens upward on the side wall 42 of the treatment tank D, and the opening amount of the notch 44 is determined. The adjustment plate 45 to be adjusted is provided in a drive mechanism 46 that is driven to move up and down. By moving the adjustment plate 45 up and down, the liquid level of the plating tank can be made the same height as the upper side of the adjustment plate, and the liquid level of the plating tank can be adjusted.
[0054]
As shown in FIG. 5, a leak receiver 51 is provided near and at the bottom of the gate means G provided in the box tank B so that the leaked chemical solution can be received and collected in the receiver tank. The liquid is collected in the receiving tank 25 via the liquid receiver 51.
[0055]
Next, the usage method of the said dam type | formula continuous immersion treatment tank is demonstrated centering on the motion of a workpiece | work. The first work W1 placed on the back side of the hanger 35 in the load section R sequentially passes through the degreasing, water washing, soft etching, and acid activation tanks by the conveying means while traveling horizontally. In this case, a treatment solution other than the plating solution, washing water and the like are sprayed on the workpiece. In addition, after processing a workpiece | work, although these spraying liquids are not shown in figure, it is collect | recovered by the storage tank connected to the bottom part of each tank. This first work W1 is the first box tank B₁The first conversion tank C placed in front of₁After the vehicle stops once for a predetermined time, it passes as it is. First conversion tank C₁The first work W1 that has passed through the first box chamber b on the back side of the first box tank from the work passage 1 where the entrance gate is opened.₁Is carried in, and the said driving | running | working is stopped, and it will be in the state shown in FIG.
[0056]
And the first box chamber b₁After the gate on the inlet side is closed, the electromagnetic valve 21 arranged in the communication pipe 22 is opened and the electric nickel plating tank D₁As shown in FIG. 6, the plating solution inside is supplied with the plating solution as shown in FIG.₁Is filled with the plating solution to obtain the state shown in FIG.
[0057]
After a predetermined time has elapsed, as shown in FIG. 12, the first box chamber b₁Plating tank D₁The side gate is opened, the conveyance of the first workpiece W1 is started again, and the first workpiece W1 is transferred to the plating tank D.₁Second conversion tank C in front₂Transport to. On the other hand, the next second workpiece W2 is the first box tank B from the previous step.₁Second box chamber b on the near side of₂The first workpiece W1 is transferred to the second conversion tank C.₂The second work W2 is stopped at the second box chamber b.₂Is stopped for a predetermined time, and the state shown in FIG. 13 is obtained.
[0058]
At this predetermined time, the first box chamber b₁Then, after closing the gate on the outlet side, the solenoid valve 23 is opened and the box chamber b is opened.₁After the inside plating solution is discharged from the drain port 24 into the receiving tank 25 by natural fall, the gate on the inlet side is opened, while the second box chamber b₂Then, after the gate on the inlet side is closed, the electromagnetic valve 21 disposed on the communication pipe 22 is opened to open the plating tank D.₁Supply the plating solution inside, plating tank D₁After filling the plating solution until the same level as the liquid surface of the plating bath D₁Open the side gate.
[0059]
Further, after a predetermined time has elapsed, as shown in FIG.₁The second workpiece W2 is transferred to the plating tank D.₁Second conversion tank C in front₂The third work W3 is transferred to the first box chamber b.₁After being transported to each other, it stops and enters the state shown in FIG.
[0060]
This first work W1 is the plating tank D₁16, the second workpiece W2 located on the front side of the second conversion tank C is moved to the back side of the hanger 35 of the transport means A by the conversion means 31, as shown in FIG. Second box chamber b₂Then, plating tank D₁After the gate on the side is closed and the plating solution is discharged, the gate on the inlet side is opened, and the first box chamber b₁Then, the gate on the inlet side is closed and the plating solution is supplied. Thereafter, similarly, each workpiece is sequentially transferred to the next tank, the liquid-treated workpiece is transferred to the unload unit U, and is unloaded from the system of the apparatus by unload means (not shown). To do.
[0061]
In the above apparatus, control such as intermittent transporting of the workpiece, opening and closing of the gate, opening and closing of various electromagnetic valves, and conversion of the workpiece may be performed by a personal computer storing a preset program.
[0062]
As described above, the work in front is the first box chamber b.₁The second box chamber b on the front side while being unloaded from₂Since the next workpiece can be carried in, the interval between the workpieces can be shortened, and the processing amount can be increased efficiently.
[0063]
The first box chamber b₁Plating solution discharge time from the second box chamber b₂The plating solution injection time can be controlled separately, so that the work loading / unloading time can be precisely controlled, which makes it possible to finely set the processing time for the plating tank, etc. It is possible to provide an economical apparatus that can flexibly cope with changes in the liquid processing conditions such as the size of the workpiece and the plating thickness only by simple operations such as changing the liquid level and adjusting the liquid level.
[0064]
In the above embodiment, an example of a plate-like gate has been described. However, as shown in FIG. 17, a contact piece 53 protrudes from the base end side of the gate main body 52 and is formed in a substantially square shape in plan view. In addition, a hook-like stop portion 55 in which soft resin is disposed on the opposing wall 54 of the work passage 1 may be formed, and a contact portion 57 in which soft resin is disposed on the outer wall 56 side may be formed. When the gate G is closed, the end of the gate body 52 comes into contact with the stop 55 and the contact piece 53 of the gate G comes into contact with the contact 57 through the soft resin, and the stop 55 Therefore, even when pushed by water pressure, the tip of the gate G is locked to the hook-like stopper 55 so that there is no gap, and gate means with high liquid sealability can be obtained.
[0065]
Further, as shown in FIG. 19, a hook-like contact piece 62 is provided on the base end side of the gate body 61 of the gate G so as to have a substantially ten-hand shape in plan view, and the opposing wall 54 of the work path 1. It is also possible to form a groove-like stop portion 63 on the outer wall 56 and a groove-like contact portion 64 on the outer wall 56 side. When the gate G is closed, the distal end of the gate body 61 and the hook-like contact piece 62 are fitted and locked to the groove-like stop portion 63 and the groove-like contact portion 64 of the box tank wall, so that the gate G is pushed by water pressure. However, the gate G does not move, there is no gap, and the gate means with high liquid sealability can be obtained. In this case, a soft resin may be provided in the groove-shaped stopper or groove-shaped contact portion to further improve the liquid sealability.
[0066]
In the above-described embodiment, the example in which the gate is slid is described. However, as shown in FIG. 20, a gate G that opens and closes freely with respect to the work path 1 is attached, and the work path peripheral vicinity 65 is attached. It is good also as a structure to which the gate G is contact | abutted. In this case, the liquid may be further improved by disposing a soft resin on the wall surface of the work passage 1 in contact with the gate. In addition, the means to attach freely can use a hinge, or provide a rotating shaft part in a gate, and may use a conventionally well-known technique, and is not specifically limited.
[0067]
In the above embodiment, the gate is driven by the driving means and opened and closed. However, as shown in FIG. 21, the gate G biased by a spring or the like is always closed with respect to the work path so that the gate G can be rotated. It is arranged to open and close, and the workpiece W pushes open the gate G against the urging force as the workpiece moves, and after the workpiece W passes, it automatically closes by the urging force. It may be configured as follows. In this case, as shown in FIG. 21, it may be a double-spread gate, but it may be composed of a single gate. The biasing means for always closing the gate G may be a known technique such as a spring, and is not particularly limited.
[0068]
In the above embodiment, the gate means that opens and closes by driving is provided on both sides of the box tank. However, as shown in FIG. 22, the gate means can freely open and close the gate on the side where the workpiece enters the immersion treatment tank. It may be provided, and the gate on the side exiting from the immersion treatment tank may be constituted by a so-called seal roller 66. As described above, when the work is pushed open and a seal roller is provided, the number of gates that need to be controlled is reduced, and the load on the control unit is reduced. This is particularly effective when it is necessary to immerse a variety of small quantities of various workpieces. The gate means provided at the entrance / exit of the box tank may be arbitrarily combined with a sliding method, a rotating method, a push-open method, or the like.
[0069]
In the above embodiment, the gate means are provided before and after the box tank, but the gate means may be provided on the continuous immersion tank side and the gate means provided on the box tank immersion tank side may be omitted. The arrangement position of the gate means provided between the box tank and the continuous immersion tank is not particularly limited.
[0070]
In the said Example, although demonstrated by the example which used an electric nickel plating tank and an electrogold plating tank as an immersion treatment tank, the said immersion treatment tank should just be a tank which immerses and processes a workpiece | work, and the kind of chemical | medical solution Whether or not to use electricity or the like is not limited.
[0071]
In the above-described embodiment, the example has been described in which two box chambers are arranged side by side, but the number of box chambers provided is not particularly limited. In addition, a plurality of box chambers are arranged side by side, and an example in which conversion tanks are arranged before and after the box chamber has been described, but when a plurality of box chambers are not arranged and the box tanks are arranged in a row, The conversion tank may be omitted.
[0072]
【The invention's effect】
The dam type continuous immersion treatment apparatus of the present invention has various practical effects described below. In other words, the box tank is provided before and after the immersion treatment tank, and gate means with improved liquid sealability to open and close the work path is provided, so that liquid ejection from the work path is prevented and the work is carried into the immersion treatment tank. The dam-type continuous immersion is economical because the suspended workpiece is not shaken by the jet liquid, and the workpiece is not damaged or sagging. A processing device can be provided.
[0073]
In addition, by arranging multiple box chambers in parallel, the loss of time for injecting and discharging chemicals to and from the box tank can be shortened, and it is possible to flexibly respond to changes in immersion treatment conditions such as workpiece size and plating thickness It is.
[0074]
Along with the conversion means, by providing a plurality of locking portions for locking the workpiece to the hanger, the workpiece can be accurately traveled along the desired traveling lane, and the desired immersion treatment conditions can be reliably executed. is there.
[0075]
By arranging the liquid level adjustment means, the chemical level in the immersion treatment tank can be adjusted easily, the control of the circulation pump, etc. is simplified, the size of the workpiece conveyed on the line and the immersion can be changed. It is possible to flexibly cope with changes in processing conditions and to make an economical apparatus.
[0076]
Furthermore, by providing the liquid level adjustment means, the box tank and the conversion tank, the immersion treatment time can be freely selected according to the size of the workpiece, the immersion treatment capability of the apparatus can be flexibly changed, the type of workpiece, The apparatus can be flexibly adapted by changing the size and immersion treatment conditions.
[0077]
As the gate means with improved liquid sealability, the tip of the main body of the gate and the contact piece are in contact with the wall surface of the box tank, so that even if a high water pressure is applied to the gate, the chemical solution is ejected from these gaps. Therefore, it is possible to ensure a high liquid sealing property.
[0078]
In addition, by improving the liquid sealing property, the surroundings of the device are not contaminated, it is not necessary to clean the contaminated device itself, and the interval between cleaning operations can be extended. The apparatus can be made longer and the apparatus can be operated with less restrictions.
[0079]
By making the gate means always open and close the gate biased to the closed state, not only the gate drive mechanism is unnecessary, but also the gate open / close control becomes unnecessary. And the control can be simplified, and a more economical device can be provided.
[0080]
By using a gate that can be opened and closed in combination with a seal roller, not only can the number of gate drive mechanisms be reduced, but the number of gate opening and closing controls can also be reduced, and the structure and control can be simplified. And can provide a more economical device.
[0081]
By providing the bipolar phenomenon prevention means, various problems such as poor plating and poor adhesion in electroplating can occur in electrolytic degreasing without causing a bipolar phenomenon in the workpiece even when the immersion treatment tank is energized. Can provide an apparatus that does not cause various problems such as roughening the surface of the workpiece.
[Brief description of the drawings]
FIG. 1 is an explanatory flow diagram of a plating apparatus provided with a dam type continuous immersion treatment tank according to an embodiment of the present invention.
FIG. 2 is a partially omitted explanatory perspective view showing a main part of a dam type continuous immersion treatment tank according to an embodiment of the present invention.
FIG. 3 is an explanatory plan view showing a box tank and a conversion tank of the apparatus.
FIG. 4 is an explanatory side view showing a box tank of the apparatus.
FIG. 5 is a conceptual diagram for explaining an injection / discharge state of a chemical solution into a box tank of the apparatus.
FIG. 6 is a conceptual diagram for explaining the state of injecting and discharging a chemical into the box tank of the apparatus.
FIG. 7 is a conceptual diagram illustrating the state of injecting and discharging a chemical into the box tank of the apparatus.
FIG. 8 is a conceptual diagram illustrating the state of injecting and discharging a chemical into the box tank of the apparatus.
FIG. 9 is a partially omitted explanatory view showing conversion means provided on the upper part of the conversion tank of the apparatus.
FIG. 10 is a partially omitted explanatory view showing conversion means provided on the upper part of the conversion tank of the apparatus.
FIG. 11 is a conceptual diagram illustrating a workpiece conveyance state in the apparatus.
FIG. 12 is a conceptual diagram illustrating a workpiece conveyance state in the apparatus.
FIG. 13 is a conceptual diagram illustrating a workpiece conveyance state in the apparatus.
FIG. 14 is a conceptual diagram illustrating a workpiece conveyance state in the apparatus.
FIG. 15 is a conceptual diagram illustrating a workpiece conveyance state in the apparatus.
FIG. 16 is a conceptual diagram illustrating a workpiece conveyance state in the apparatus.
FIG. 17 is a partially omitted explanatory conceptual plan view showing another aspect of the means for improving the liquid sealability, which is the gate means of the dam type continuous immersion treatment tank according to the present invention.
FIG. 18 is a partially omitted explanatory conceptual plan view showing another aspect of the means for improving the liquid sealability, which is the gate means of the dam type continuous immersion treatment tank according to the present invention.
FIG. 19 is a partially omitted explanatory conceptual plan view showing another embodiment of a means for improving the liquid sealability, which is the gate means of the dam type continuous immersion treatment tank according to the present invention.
FIG. 20 is a partially omitted explanatory conceptual plan view showing a gate means of the dam type continuous immersion treatment tank according to the present invention and showing another mode of opening and closing of the gate.
FIG. 21 is a partially omitted explanatory conceptual plan view showing a gate means of a dam type continuous immersion treatment tank according to the present invention and showing another mode of opening and closing of the gate.
FIG. 22 is a partially omitted explanatory conceptual plan view showing a gate means of the dam type continuous immersion treatment tank according to the present invention and showing another mode of opening and closing of the gate.
FIG. 23 is a partially omitted explanatory plan view showing the conveying means of the dam type continuous immersion treatment tank according to the present invention.
FIG. 24 is a partially omitted explanatory side view showing the conveying means.
FIG. 25 is a partially omitted explanatory conceptual plan view showing another aspect of the means for improving the liquid sealability, which is the gate means of the dam type continuous immersion treatment tank according to the present invention.
FIG. 26 is a partially omitted explanatory conceptual plan view showing another aspect of the means for enhancing the liquid sealing property, which is the gate means of the dam type continuous immersion treatment tank according to the present invention.
FIG. 27 is a partially omitted explanatory conceptual plan view showing another aspect of a means for enhancing the liquid sealing property, which is a gate means of a dam type continuous immersion treatment tank according to the present invention.
[Explanation of symbols]
W Work
A Transport means
B box tank
b1, b2 box room
C conversion tank
D Dipping tank
G Gate
1 Work passage
2 Gate means
4 Gate body
21 Solenoid valve
22 Communication pipe
24 outlet
25 Receiving tank
35 Hanga
41 Liquid level adjusting means
42 side wall
44 Notch
45 Adjustment plate
52 Gate body
53 Contact piece
61 Gate body
62 Contact piece
65 walls
71 Hard resin
72 Soft resin
73 Groove
74 Soft resin film

Claims (16)

An immersion treatment tank group provided with an immersion treatment tank for immersing the workpiece in the treatment liquid and a box tank disposed before and / or after the immersion treatment tank;
Conveying means for horizontally running the workpiece along the immersion bath group,
Gate means having a liquid sealing property for opening and closing work passages provided before and after each box tank,
A communication pipe communicating with each other through a valve that can be freely opened and closed between the adjacent box tank and the immersion treatment tank;
A receiving tank for receiving the processing liquid discharged from the outlet provided in the box tank via a valve;
A return means for returning the liquid from the receiving tank to the corresponding immersion treatment tank;
The box tank is configured to have a plurality of box chambers arranged in parallel in a direction orthogonal to the workpiece traveling direction, and the conversion tank is disposed before and after the box tank, and the conversion tank is provided in a plurality. A dam-type continuous dipping treatment apparatus characterized by comprising conversion means for converting a workpiece into a desired traveling lane of the workpiece traveling lane.   The dam type continuous dipping process according to claim 1, wherein the box tank is disposed before and / or after the dipping tank for electroplating and has a bipolar phenomenon prevention means. apparatus. The gate means includes a gate that is slidably opened and closed in a direction perpendicular to the work path, and a drive mechanism that drives the gate to be opened and closed;
The gate slides in the slit provided in the outer wall surface of the work passage and in the slide groove provided in the bottom of the work passage, and the gate slides on the side far from the immersion treatment tank . the sliding surface arranged hard resinous, together with the gate in the process fluid pressure of the immersion treatment tank exerts the distant pressed against the sliding surface side and the sealing property, sliding on the side closer to the immersion bath the surface by arranging the soft resinous, when the gate in the process fluid pressure of the immersion bath is applied a force in the direction away from the sliding surface of the far side, the soft resin is to follow the movement of the gate surface and small Huh deformed Te state, and are not made so as to enhance the sealing property in contact with the gate surface, and
When a soft resin is disposed on the opposite wall surface of the work path that contacts the main body edge of the gate and / or the gate main body edge, and the gate is pressed against the opposite wall surface of the work path, the soft resin is less allowed. deformed dam type continuous immersion treatment device according to claim 1, characterized in der Rukoto made so as to enhance the sealing property. The immersion treatment tank has a liquid level adjusting means, and the liquid level adjusting means is provided with a notch at a desired position on the side wall of the treatment tank, and an adjustment plate for adjusting the opening amount of the notch is moved up and down. The dam type continuous dipping treatment apparatus according to any one of claims 1 to 3 , wherein the dam type continuous immersion treatment apparatus is provided on the side wall freely. An immersion treatment tank group provided with an immersion treatment tank for immersing the workpiece in the treatment liquid and a box tank disposed before and / or after the immersion treatment tank;
Conveying means for horizontally running the workpiece along the immersion bath group,
Gate means having a liquid sealing property for opening and closing work passages provided before and after each box tank,
A communication pipe communicating with each other through a valve that can be freely opened and closed between the adjacent box tank and the immersion treatment tank;
A receiving tank for receiving the processing liquid discharged from the outlet provided in the box tank via a valve;
A return means for returning the liquid from the receiving tank to the corresponding immersion treatment tank;
A dam type continuous immersion treatment apparatus, wherein the box tank is disposed before and / or after an immersion treatment tank for electroplating and has a bipolar phenomenon prevention means. The gate means includes a gate that is slidably opened and closed in a direction perpendicular to the work path, and a drive mechanism that drives the gate to be opened and closed;
The gate slides in the slit provided in the outer wall surface of the work passage and in the slide groove provided in the bottom of the work passage, and the gate slides on the side far from the immersion treatment tank. Hard resin is placed on the sliding surface, and the gate is pressed against the sliding surface on the far side by the treatment liquid pressure of the immersion treatment tank to exhibit sealing properties, and the sliding surface on the side closer to the immersion treatment tank When soft force is applied to the gate in the direction away from the sliding surface on the far side due to the treatment liquid pressure of the immersion treatment tank, the soft resin follows the movement of the gate surface. It is deformed and comes into contact with the gate surface so as to improve the sealing performance, and a soft resin is arranged on the opposite wall surface of the work passage contacting the main body edge of the gate and / or the gate main body edge. Installed on the opposite wall surface of the work passage. The when pressed, dam continuous immersion treatment device according to claim 5, characterized in that the soft resin is made so as to enhance the sealing property by little allowed deformed.   The immersion treatment tank has a liquid level adjusting means, and the liquid level adjusting means is provided with a notch at a desired position on the side wall of the treatment tank, and an adjustment plate for adjusting the opening amount of the notch is moved up and down. The dam type continuous immersion treatment apparatus according to claim 5 or 6, wherein the dam type continuous immersion treatment apparatus is provided on the side wall freely. An immersion treatment tank group provided with an immersion treatment tank for immersing the workpiece in the treatment liquid and a box tank disposed before and / or after the immersion treatment tank;
Conveying means for horizontally running the workpiece along the immersion bath group,
Gate means having a liquid sealing property for opening and closing work passages provided before and after each box tank,
A communication pipe communicating with each other through a valve that can be freely opened and closed between the adjacent box tank and the immersion treatment tank;
A receiving tank for receiving the processing liquid discharged from the outlet provided in the box tank via a valve;
A return means for returning the liquid from the receiving tank to the corresponding immersion treatment tank;
The gate means includes a gate that is slidably opened and closed in a direction perpendicular to the work path, and a drive mechanism that drives the gate to be opened and closed, and the gate is provided on an outer wall surface of the work path. Slides in the slit and the sliding groove provided at the bottom of the work path,
Among the surfaces of the gate slides, by disposing the hard resinous the sliding surface on the side far from the immersion bath, the gate in the process fluid pressure of the immersion bath is pressed against the sliding surface of the far side together exhibit sealability Te, the sliding surface on the side closer to the immersion treatment bath by arranging soft resinous, force in the direction of the gate in the process fluid pressure of the immersion tank moves away from the sliding surface of the far side when the applied and the soft resin is to follow the movement of the gate surface is small Huh deformed state, and are not made so as to enhance the sealing property in contact with the gate surface, and
When a soft resin is disposed on the opposite wall surface of the work path that contacts the main body edge of the gate and / or the gate main body edge, and the gate is pressed against the opposite wall surface of the work path, the soft resin is less allowed. dam continuous immersion treatment device modified to characterized der Rukoto made so as to enhance the sealing property.   The immersion treatment tank has a liquid level adjusting means, and the liquid level adjusting means is provided with a notch at a desired position on the side wall of the treatment tank, and an adjustment plate for adjusting the opening amount of the notch is moved up and down. The dam type continuous immersion treatment apparatus according to claim 8, wherein the dam type continuous immersion treatment apparatus is provided on the side wall. An immersion treatment tank group provided with an immersion treatment tank for immersing the workpiece in the treatment liquid and a box tank disposed before and / or after the immersion treatment tank;
Conveying means for horizontally running the workpiece along the immersion bath group,
Gate means having a liquid sealing property for opening and closing work passages provided before and after each box tank,
A communication pipe communicating with each other through a valve that can be freely opened and closed between the adjacent box tank and the immersion treatment tank;
A receiving tank for receiving the processing liquid discharged from the outlet provided in the box tank via a valve;
A return means for returning the liquid from the receiving tank to the corresponding immersion treatment tank;
The immersion treatment tank has a liquid level adjusting means, and the liquid level adjusting means is provided with a notch at a desired position on the side wall of the treatment tank, and an adjustment plate for adjusting the opening amount of the notch is moved up and down. A dam type continuous dipping treatment apparatus characterized in that it is freely provided on the side wall. The transport means has a large number of hangers for suspending and transporting a work, and each hanger is provided with a plurality of suspension lower portions for suspending the work in a direction orthogonal to the work traveling direction. The dam type continuous immersion treatment apparatus according to any one of claims 1 to 10 . 2. The gate means according to claim 1, wherein a groove is formed in a work passage wall with which a front end of the main body of the gate contacts, and a soft resin film is disposed so as to cover an open surface of the groove. The dam type continuous immersion treatment apparatus according to any one of 1 to 11 . The gate means includes a gate that opens and closes slidably in a direction orthogonal to the work path, and a drive mechanism that drives the gate to open and close, the gate being a base end of a plate-like gate body A contact piece projecting on the side, and the gate body tip of the gate and the contact piece are brought into contact with the wall surface of the box tank so that the liquid filled in the box tank is sealed. The dam type continuous dipping treatment apparatus according to any one of claims 1 to 12 , wherein The gate means comprises a gate that opens and closes freely with respect to the work path, and a drive mechanism that drives the gate so as to freely rotate. The dam type continuous dipping treatment apparatus according to any one of claims 1 to 12 , wherein the dam type continuous dipping treatment apparatus is configured to seal the liquid filled in the box tank. The gate means is disposed so as to pivotably open and close a gate that is constantly biased to the workpiece path so that the workpiece resists the biasing force as the workpiece moves. The dam type continuous immersion treatment apparatus according to any one of claims 1 to 12 , wherein the dam type continuous dipping treatment apparatus is configured to be automatically closed by the biasing force after being pushed open and the work has passed. The gate means comprises a gate on the side into which the workpiece enters the immersion treatment tank so that it can be opened and closed, and the gate exiting from the immersion treatment tank is constituted by a seal roller. The dam type continuous immersion treatment apparatus according to any one of 15 .

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