JP5650986B2 - Surface treatment equipment without drainage - Google Patents

Description

  The present invention relates to a surface treatment apparatus without drainage.

Various devices for preventing generation of waste liquid contaminated with a treatment liquid (enabling undrained operation) have been proposed in an apparatus that performs surface treatment such as electrogalvanization (see, for example, Patent Documents 1 to 3). . A common feature of these apparatuses is that a plurality of washing tanks required for each process are arranged side by side to perform countercurrent multi-stage washing.
In the counter-current type, the cleaning product is taken from the washing tank at the process outlet side to the processing tank at the process inlet, as opposed to transporting the processed product taken out from the processing tank at the process inlet to the washing tank. A method of reverse flow in sequence. In this countercurrent type, the washing water closer to the process outlet is cleaner, and the water washing tank closer to the process inlet (treatment tank) becomes more contaminated with water (the concentration of the treatment liquid is higher).

  That is, the reason is that no waste liquid is generated from any of the washing tanks, and drainage operation is possible. Preferably, it is preferable to provide a concentrator for the treatment tank so that only the water is evaporated while assembling a part of the treatment liquid in the tank, and the treatment liquid taken out after the evaporation is returned to the treatment tank (for example, , See Patent Document 3).

Japanese Patent No. 3769661 JP 2006-332069 A Japanese Patent Publication No. 4-16560

However, simply using the conventional countercurrent multi-stage washing and concentrating device still has the problem of high running costs, and it is practically impossible to achieve no drainage operation. It was said.
That is, when the processed product taken out from the processing tank is immersed in the adjacent washing tank, a large amount of the processing liquid is taken out by the processed product, and the processing liquid in the processing tank always decreases. Along with the adoption of the counter-current type, the washing water containing the treatment liquid flows backward (supply) from the washing tank side to the treatment tank.
Even if this is done, since most of the backwash water (water) is lost by evaporation by the concentrator, the amount of the treatment liquid returned to the treatment tank is larger than the amount of the treatment liquid taken out of the treatment tank, There is much less.

  For this reason, in order to keep the inside of the treatment tank in a certain treatment liquid, a large amount of treatment liquid must be newly replenished to the treatment tank, and the cost required for this replenishment treatment liquid is increased. This is the cause of the high cost that hinders the profitability of operations. In addition, since a large amount of processing liquid is brought into the washing tank at the process outlet, the remover that performs adsorption removal of the processing liquid components mixed in this washing tank must be replaced frequently. In this respect as well, it was spurring high costs.

  The present invention has been made in view of the above circumstances, and provides a non-drainage surface treatment apparatus which can reduce the running cost and make the drainage operation substantially possible. With the goal.

In order to achieve the above object, the present invention has taken the following measures.
That is, the non-drainage surface treatment apparatus according to the present invention includes a treatment tank for storing a treatment liquid, a washing tank that is disposed on the side of the treatment tank and stores washing water, and a space between the treatment tank and the washing tank. A recovery tank for storing pre-washing wash water, a plurality of mobile bodies arranged in series along the arrangement direction of the treatment tank, the recovery tank, and the water washing tank, and a recovery tank for removing the mobile bodies from the treatment tank. The tank wall that separates the tank from each tank by lowering the moving body to a height that comes into contact with each of the processing liquid, the pre-cleaning washing water, and the washing water above each tank while transporting in the direction toward the washing tank Conveying means for raising the moving body to a higher height.

And while a processing tank and a recovery tank are connected by the 1st countercurrent means which supplies the washing water for pre-washing of a recovery tank to a processing tank, a recovery tank and a water washing tank collect the washing water of a water washing tank Connected by a second countercurrent means for feeding to.
In addition, the conveying means is configured to incline the moving body diagonally so that one of the corners generated on the outer surface of the moving body is at the lowest position when the moving body is raised between the tanks .

In addition, the transfer means is a transfer frame that moves outside the tank along each tank, and a position that is supported by the cantilever so as to be swingable up and down from the transfer frame to above the tank and passes above the tank. A lifting frame that holds the moving body, a rolling wheel that is rotatably held around an axis that is orthogonal to the transport direction in a plan view at a position outside the tank with respect to the lifting frame, and the lifting frame swings downward. A rotation imparting rail installed at a height that abuts against the rolling wheel only when moved, and a rotational power that rotates when the rolling wheel abuts against the rotation provision rail is transmitted to the moving body to convey the moving body. And a rotation drive section that rotates around an axis that is orthogonal to the direction in plan view .

The “recovery tank” is substantially the same as the washing tank, and the “pre-washing washing water” stored in this collection tank is the concentration of the treatment liquid compared to the washing water stored in the washing tank. Say high wash water. The number of collection tanks is not particularly limited (means that at least one collection tank is provided).
In short, a tank installed at the process outlet is referred to as a “water washing tank”, and all tanks installed between the water washing tank and the treatment tank installed at the process inlet are called “recovery tanks”.

In addition, “outside of the tank” means not only the side of each tank but also an area not in contact with the liquid storage in the tank, such as above the tank.
With such a configuration, the moving body that moves between the tanks is inclined obliquely so that one of the corners formed on the outer surface is at the lowest position, thereby being positively and highly efficient. The amount of the processing liquid and pre-cleaning water that is drained and taken out from each tank is as small as possible. Therefore, in the treatment tank, the amount of the treatment liquid to be replenished can be suppressed to a small amount as much as possible, and the running cost can be reduced.

In addition, in the water washing tank (tank installed at the process outlet), it is possible to reduce the amount of processing liquid brought in as much as possible, and the frequency of replacement of the remover that performs adsorption removal of the mixed processing liquid components is reduced. , Is greatly reduced. As a result, undrained operation can be made substantially possible.
The conveying means operates to start descending into the tank on the downstream side in the conveying direction while eliminating the inclination of the moving body in accordance with the timing when the moving body that has been lifted and inclined moves over the tank wall. It is preferable to adopt a configuration to do so.

Specifically, the conveying means, for raising the movable body on the elevating frame by abutment at the outside of the tank location of each tank to the lifting frame to be conveyed along with the movement of the carrier frame It is preferable to have a cam for applying a swinging force .
The moving body may be a barrel for storing the processed product, a holder for holding the processed product, or the processed product itself.

  The surface treatment apparatus using no drainage according to the present invention can reduce the running cost, and can substantially perform no drainage operation.

It is the BB sectional drawing of FIG. 4, and has shown in the state which raised the mobile body. It is the sectional view on the AA line of FIG. 4, and has shown in the state which moved the moving body down. FIG. 3 is a view taken along line CC in FIG. 2. It is the top view which showed 1st Embodiment of the surface treatment apparatus by the no drainage which concerns on this invention. It is front sectional drawing which showed typically 1st Embodiment of the surface treatment apparatus by the no drainage which concerns on this invention. It is a sectional side view (figure corresponding to Drawing 2) showing a 2nd embodiment of a surface treatment device by drainage concerning the present invention. It is the sectional side view (figure corresponding to Drawing 1) showing the reference example constituted using the basic principle of the surface treatment device by the non-drainage concerning the present invention. It is front sectional drawing (figure corresponding to FIG. 5) which showed typically 3rd Embodiment of the surface treatment apparatus by the non-drainage which concerns on this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
1 to 5 show a first embodiment of a surface treatment apparatus 1 according to the present invention. In this surface treatment apparatus 1, non-drainage operation is possible.
As shown in FIGS. 4 and 5, the surface treatment apparatus 1 includes a treatment tank 2 for storing a treatment liquid, a recovery tank 3 (3A to 3C) for storing pre-washing washing water, and a water washing for storing washing water. It has a tank 4 and also has a plurality of moving bodies 6 that move along these tanks 2, 3, 4, and a conveying means 7 for moving these moving bodies 6.

In addition, this surface treatment apparatus 1 is used as what comprises each process, such as a pre-processing process, a plating process process, or a post-processing process, among the plating lines 10 which perform electrogalvanization etc., for example.
As shown in FIG. 5, the treatment tank 2 is provided at the process inlet, and the water washing tank 4 is provided at the process outlet which is a side of the treatment tank 2. One or a plurality of recovery tanks 3 are provided between the treatment tank 2 and the washing tank 4. In the first embodiment, three tanks (3A to 3C) are provided as the collection tank 3.

In FIG. 5, for easy understanding, the treatment tank 2, the collection tank 3 (3 </ b> A to 3 </ b> C), and the water washing tank 4 are shown as independent tanks (each having a tank wall that surrounds each side). However, the adjacent tanks may be integrally connected as a structure that shares the tank walls that divide them (an example of the shared tank wall is shown in FIG. 3 described later).
With respect to these processing tank 2, recovery tank 3 (3A-3C), and washing tank 4, the processed product is first immersed in the processing tank 2, then immersed in the recovery tank 3A adjacent to the processing tank 2, and subsequently. It is immersed in the recovery tank 3B adjacent to this recovery tank 3A, and thereafter similarly immersed in the recovery tank 3C and the water washing tank 4, and then sent to the next step.

If the said process is a plating process in the case of performing a zinc zincate bath, the processing tank 2 stores a processing liquid adjusted to a predetermined zinc concentration by melting the zinc material with a processing liquid material such as caustic soda. .
On the other hand, the washing water is stored in the washing tank 4, and the pre-washing washing water is stored in the recovery tank 3. This prewash water is the same as the wash water stored in the water tank 4 (ie, water) at the start of use. However, as will be described later, as the recovery tank 3 is used, the concentration of the treatment liquid in the prewash water is higher than that in the wash water stored in the water tank 4.

  The processing tank 2, the recovery tank 3 (3A to 3C), and the water washing tank 4 are connected to each other in countercurrent. That is, the treatment tank 2 and the collection tank 3 (the collection tank 3A adjacent to the treatment tank 2) are connected by the first countercurrent means 11 that supplies the pre-washing washing water of the collection tank 3 to the treatment tank 2. . Further, the recovery tank 3 (3C adjacent to the water washing tank 4) and the water washing tank 4 are connected by a second countercurrent means 12 that supplies the washing water of the water washing tank 4 to the recovery tank 3. The recovery tanks 3A to 3C are also connected to each other by the intermediate countercurrent means 13 so that the pre-washing wash water can be supplied from 3C → 3B, 3B → 3A.

In addition, the 1st counterflow means 11, the 2nd counterflow means 12, and the intermediate | middle counterflow means 13 may be made into the structure made to overflow by the water level difference between each tank, and may be made into the connection structure by a piping member. Moreover, it is good also as what makes it the structure which uses a pump together, and makes it force-feed.
Further, in the first embodiment, the processing tank 2 is connected to the preliminary tank 15 via the piping member 16 so that the processing liquid in the processing tank 2 can be supplied to the preliminary tank 15. The preliminary tank 15 is provided with a heater 17 so that the processing liquid in the tank can be heated and heated (for example, 25 ° C. to 45 ° C. or higher than 45 ° C.). The reserve tank 15 is provided with a concentrator 18, and a suction pipe 20 having a pump 19 is connected to the concentrator 18.

The concentrator 18 sprays the heated processing liquid sent from the preparatory tank 15 through the suction pipe 20 inside the container, and causes the rising air flow to collide with the sprayed processing liquid. The water contained in the water is evaporated, and the treatment liquid component remaining after the evaporation is dropped into the preliminary tank 15.
The moving body 6 is a barrel for storing processed products. As shown in FIGS. 1 and 2, in the first embodiment, the moving body 6 has a body portion 6 a having a regular hexagonal rectangular tube shape, and both end sides of the body portion 6 a are close to the end portions. Therefore, it is in the shape of a hollow box having a barrel end portion 6b that is dented into a truncated pyramid shape. Therefore, the corner 6c is formed on the outer surface of the movable body 6 so as to surround the entire circumference of the boundary portion between the barrel-shaped body 6a and the truncated pyramid-shaped body end 6b. Yes.

The moving body 6 can accommodate a large number of small articles (for example, bolts and nuts) in the body portion 6a and the body end portion 6b that are hollow. Moreover, the trunk | drum 6a and the trunk | drum edge part 6b are formed with plate raw materials, such as a porous material and a net | network material, and comprised the water permeability.
Further, an opening is formed on one end side (the left side in FIGS. 1 and 2) of the moving body 6, and the processed product can be taken in and out through this opening. The opening can be opened and closed by a lid member 26 that swings around a pivotal support 25 provided on the outer periphery of the opening.

A plurality of such moving bodies 6 are provided as shown in FIG. 4, and the plurality of moving bodies 6 are arranged in the arrangement direction of the treatment tank 2, the collection tank 3 (3 </ b> A to 3 </ b> C), and the washing tank 4 (FIG. 4). In the horizontal direction).
The conveying means 7 conveys all the moving bodies 6 all at once in the direction from the processing tank 2 to the washing tank 4 through the recovery tank 3. The transfer means 7 includes a moving unit lifting mechanism 33 configured to include a transfer frame 30, an elevating frame 31, and a cam 32, a rolling wheel 34, a rotation imparting rail 35, and a rotation driving unit 36. And a moving part rotating mechanism 37 configured as described above.

First, the moving unit lifting mechanism 33 will be described.
The transport frame 30 and the lifting frame 31 included in the moving unit lifting mechanism 33 are provided separately for each moving body 6. A plurality of cams 32 included in the moving unit elevating mechanism 33 are provided along the moving direction of the moving body 6. The moving unit lifting mechanism 33 is
Furthermore, a guide rail 40 for guiding the movement of the moving body 6 is provided.

  The guide rail 40 is provided outside the tanks 2 to 4 along the arrangement direction of the treatment tank 2, the collection tank 3 (3 </ b> A to 3 </ b> C), and the water washing tank 4. In addition, this guide rail 40, when the surface treatment apparatus 1 according to the present invention is integrated into the line together with other processes as one process of the plating line 10 (see FIG. 4), all processes are performed. It is provided in a series as if patrol with endless.

  The conveyance frame 30 is provided in an upright state, and moves along the guide rail 40 via a wheel 42 provided at the lower end of the conveyance frame 30. This conveyance frame 30 moves outside the tank along each tank 2-4. Note that the structure in which the conveyance frame 30 is guided with respect to the guide rail 40 (the structure that prevents the conveyance frame 30 from being separated from the guide rail 40) is not particularly limited. The mounting direction of the wheel 42 and the presence or absence thereof are not limited.

The conveyance frames 30 corresponding to each moving body 6 are connected to each other at a predetermined interval by a connecting member 43 having flexibility such as a chain or a wire rope. A sprocket or the like is meshed with the connecting member 43, and the sprocket is driven to rotate, so that driving for conveyance is given.
The elevating frame 31 is cantilevered so as to protrude substantially horizontally from the transport frame 30 upward of the tanks 2 to 4. A pivot 45 having a shaft centered horizontally along the transport direction is provided at a portion where the lift frame 31 is supported with respect to the transport frame 30, and the lift frame 31 is centered on the pivot 45. It is swingable so that the tip side passing through the upper side of -4 moves up and down.

The moving body 6 described above is supported on the lifting frame 31 on the tip side that swings up and down. That is, the elevating frame 31 is provided with a pair of support members 46 and 47 projecting downward so as to sandwich the body end portions 6b at both ends of the moving body 6 from both outer sides thereof.
Of the support members 46 and 47, the support member 46 that supports the body end portion 6b on the side of the movable body 6 where the opening is provided (the side where the lid member 26 is provided) is the outer peripheral portion of the opening. Is rotatably fitted.

The other support member 47 is configured to rotatably hold a rotation shaft 48 provided so as to protrude from the other body end 6 b of the movable body 6. The rotation shaft 48 is disposed so as to be coaxial with the central axis of the body portion 6 a of the moving body 6 with respect to the moving body 6, and is provided so as to rotate integrally with the moving body 6. Yes.
That is, the movable body 6 is held by the lifting frame 31 so as to be rotatable around the rotation shaft 48. The direction in which the elevating frame 31 protrudes from the conveyance frame 30 and the axial direction of the rotation shaft 48 in the moving body 6 are substantially parallel.

As shown in FIG. 2, when the elevating frame 31 is in the lower position of the vertical swing, the moving body 6 comes into contact with each of the processing liquid, the pre-washing washing water, and the washing water with respect to each tank 2 to 4. It is said to be high. On the other hand, as shown in FIG. 1, when the elevating frame 31 is in the upper position of the vertical swing, the movable body 6 is held at a height above the tank wall separating the tanks 2 to 4. It has become.
The moving body 6 at the time of the ascent is not only made higher than the tank wall but also inclined obliquely so that the corner portion 6c formed between the body portion 6a and the body end portion 6b is at the lowest position. State.

Therefore, for example, even when the processing liquid is attached to the moving body 6 (including the internal processed product), the processing liquid concentrates on the lowest corner portion 6c and easily flows down or drops downward. To come. That is, the liquid is drained as quickly and efficiently as possible.
The cam 32 is arranged corresponding to each of the tanks 2 to 4, and is provided at a position outside the tank of each of the tanks 2 to 4. In the first embodiment, when the conveyance frame 30 is viewed through each of the tanks 2 to 4, the cam 32 is disposed at the back side position passing through the conveyance frame 30.

  Due to this arrangement, as shown in FIG. 3, the cam 32 has an inverted trapezoidal shape in which the lower base is shorter than the upper base and protrudes downward from the installation frame 49. It is as provided. Therefore, when the elevating frame 31 is moved along with the conveyance of the conveying frame 30, the cam 32 is located above the portion of the elevating frame 31 that passes through the positions outside the tanks 2 to 4. It comes to contact.

In other words, the elevating frame 31 comes into contact with the lower end edge of the cam 32, and the elevating frame 31 is pushed down by this contact, and the moving body 6 held at the tip of the elevating frame 31 is raised. Therefore, a swinging force is provided.
In the first embodiment, the cam follower 50 is provided in the elevating frame 31 so that the cam follower 50 makes contact with the cam 32. By providing this cam follower 50, the lower end edge of the cam 32 and the elevating frame 31 can be smoothly contacted, and the elevating frame 31 can be smoothly moved while being in contact with the lower end edge of the cam 32. Become. Further, a spring 51 is provided between the elevating frame 31 and the conveyance frame 30 in a direction in which the elevating frame 31 is pulled up. By providing the spring 51, when the elevating frame 31 (cam follower 50) comes into contact with the cam 32, the elevating frame 31 surely swings upward.

The cam 32 can also be arranged at a front side position in front of the conveyance frame 30 when the conveyance frame 30 is viewed through the respective tanks 2 to 4. In this case, the cam 32 has a trapezoidal shape in which the upper base is shorter than the lower base, and the lifting frame 31 (cam follower or the like) rides on the upper bottom side, that is, the upper edge of the cam 32, The contact is made.
On the other hand, in the direction in which the elevating frame 31 moves along with the conveyance of the conveyance frame 30, the cam 32 is arranged as follows. That is, when the elevating frame 31 (cam follower 50) comes into contact with the cam 32 and the elevating frame 31 (moving body 6) rises, the elevating frame 31 next to the raised state is the tank wall between the tanks 2-4. The arrangement of the cam 32 is determined so that the elevating frame 31 can start to descend in accordance with the timing of overcoming the above.

  By arranging the cam 32 in this manner, the movable body 6 that is lifted and inclined together when the elevating frame 31 is lifted moves at the timing of getting over the tank wall between the tanks 2 to 4. The body 6 starts to descend while eliminating the inclination of the body 6 and descends into a tank installed on the downstream side in the transport direction. Therefore, the moving body 6 (internally processed product) quickly comes into contact with the liquid stored in the tank installed on the downstream side in the transport direction, and the contact time can be made as long as possible. In this respect, it can be said to be preferable.

Next, the moving part rotation mechanism 37 provided in the transport unit 7 will be described.
As described above, the moving unit rotating mechanism 37 includes the rolling wheels 34, the rotation imparting rail 35, and the rotation driving unit 36. The rolling wheel 34 and the rotation drive unit 36 are provided separately for each moving body 6 (elevating frame 31). Moreover, the rotation provision rail 35 is provided in the fixed state in the position which becomes outside the tank of each tank 2-4 similarly to the cam 32 and the guide rail 40 of the moving part raising / lowering mechanism 33. As shown in FIG.

  The rolling wheel 34 is disposed so as to be positioned outside the tanks 2 to 4 with respect to the lifting frame 31 and is rotatably held. In the first embodiment, the wheel shaft 55 connected to the rolling wheel 34 in a state of rotating integrally with the support member 47 on which the rotation shaft 48 protruding from the moving body 6 is held is held through, and this The rolling wheel 34 is rotatable together with the wheel shaft 55. That is, the wheel shaft 55 has its axis centered in a direction orthogonal to the transport direction of the elevating frame 31 in a plan view, and the rolling wheel 34 is rotatable around the wheel shaft 55. Even when the elevating frame 31 swings downward, the wheel shaft 55 is disposed so as to be higher than the tank walls of the tanks 2 to 4, and contact interference with the tank walls is prevented.

  The rotation imparting rail 35 is installed at a height that contacts the rolling wheel 34 only when the elevating frame 31 swings downward. The rotation imparting rail 35 is configured such that its longitudinal direction is along the conveying direction of the lifting frame 31. The rotation imparting rail 35 may be provided only in a section where the lifting frame 31 swings downward, or may be provided over the entire length of the transport section of the lifting frame 31.

In the first embodiment, the rolling wheel 34 is a sprocket (or spur gear), and the rotation imparting rail 35 is a chain that can mesh with the sprocket employed in the rolling wheel 34 (or a rack rail that can mesh with the spur gear). did. With such a combination, the rolling wheel 34 and the rotation imparting rail 35 mesh with each other when the lifting frame 31 swings downward, and the rotation of the rolling wheel 34 is reliably performed without causing a slip. Become. However, this is not limited, and the rolling wheel 34 may be a roller having a smooth outer peripheral surface, and the rotation imparting rail 35 may be a strip having a smooth upper surface.

  The rotation drive unit 36 is for transmitting the rotational power that rotates when the rolling wheels 34 come into contact with the rotation imparting rail 35 to the moving body 6. In the first embodiment, rotation is performed from the input gear 36a that rotates integrally with the wheel shaft 55 of the rolling wheel 34 to the output gear 36c that is provided on the rotation shaft 48 of the movable body 6 so as to be integrally rotatable via the intermediate gear 36b. The rotation drive unit 36 is configured by a transmission gear transmission mechanism.

The moving body 6 that receives the rotation drive from the rotation drive unit 36 rotates around the rotation axis 48 (that is, the axis orthogonal to the conveyance direction in plan view) as the elevating frame 31 moves together with the conveyance frame 30. It will be a thing.
Next, the operation of the surface treatment apparatus 1 according to the present invention will be described.
First, when the transport unit 7 transports each transport frame 30 as a pulling operation by a connecting member 43 such as a chain, the elevating frame 31 and the moving body 6 are moved together with the transport frame 30. Due to this movement, the moving body 6 held by the elevating frame 31 passes above them along the arrangement direction of the tanks 2 to 4 (left-right direction in FIG. 4). Each moving body 6 is assumed to contain a large number of small processed items such as bolts and nuts.

Thus, when each moving body 6 is moved and the moving body 6 passes above the processing tank 2, the lifting frame 31 is in a state of swinging downward as shown in FIG. . Therefore, the moving body 6 provided at the tip of the elevating frame 31 is held at a height that makes contact with the processing liquid stored in the processing tank 2.
At this time, the rolling wheel 34 comes into contact with the rotation imparting rail 35 and receives rotational power. Therefore, this rotational power is transmitted to the rotation shaft 48 of the moving body 6 via the rotation drive unit 36, and the moving body 6 rotates around the rotation shaft 48.

  Thus, the processing liquid placed in the moving body 6 comes into uniform and reliable contact with the processing liquid over the entire surface. When a zinc zincate bath is used, a surface treatment is performed by applying a processing current using the processing liquid in the processing tank 2 as an anode and a processing product in the moving body 6 as a cathode. In addition, the structure for bringing the anode electrode into contact with the treatment liquid and the structure for bringing the cathode electrode into contact with the treated product can adopt various conventionally known structures, and are not limited at all. Absent.

  When the movement of the movable body 6 accompanying the conveyance of the conveyance means 7 is continued and the timing when the movable body 6 should come out of the processing tank 2, as shown in FIGS. 1 and 3, the cam 32 provided outside the tank. The cam follower 50 provided in the elevating frame 31 comes into contact with the lower edge portion of the lower edge portion. For this reason, the lift frame 31 is swung upward by this contact, and the moving body 6 is also lifted as the tip of the lift frame 31 is lifted.

  As the moving body 6 rises, the rolling wheels 34 move away from the rotation-giving rail 35, and the rotation of the moving body 6 stops. Moreover, the moving body 6 that has been lifted is held so as to tilt further upward beyond the state in which the rotation shaft 48 becomes horizontal. By such a rise, the moving body 6 is lifted to a height above the tank wall that separates the processing tank 2 and the collection tank 3A adjacent to the processing tank 2 and can get over the tank wall. become able to.

  Further, the moving body 6 in such a rising posture is inclined obliquely, and the corner portion 6c generated on the outer surface thereof is the lowest position. Therefore, the processing liquid adhering to the outer surface of the moving body 6, the processing liquid remaining in the moving body 6, and further the processing liquid adhering to the processed product in the moving body 6 are directed toward the lowest corner portion 6 c. From this corner 6c, it flows down or drops into the processing tank 2.

Thus, even if the moving body 6 is transported from the processing tank 2 to the collection tank 3A adjacent thereto, the removal of the processing liquid by the moving body 6 is prevented as much as possible. Therefore, the treatment liquid is suppressed from being mixed into the prewash water stored in the recovery tank 3A, and the prewash water is prevented from being contaminated (the treatment liquid concentration is increased) as much as possible. It becomes.
When the moving body 6 continues to move along with the transfer of the transfer means 7 and the moving body 6 in the rising and inclined state gets over the tank wall separating the processing tank 2 and the recovery tank 3A, the cam follower 50 is camped. 32 moves to the hypotenuse on the downstream side in the transport direction (left side in FIG. 3), and the elevating frame 31 starts to swing downward. Accordingly, the moving body 6 starts to descend toward the collection tank 3A while eliminating the inclined posture (see FIG. 1) at the time of ascent.

Thereafter, the moving body 6 performs the same descending operation and ascending operation with respect to each tank. That is, above the recovery tank 3A, it descends to a height where it comes into contact with the pre-washing wash water, moves up in the tank of the recovery tank 3A, and rises over the tank wall. Moreover, it descend | falls to the height which contacts the washing water for pre-washing above the next collection tank 3B, moves up in the tank of the said collection tank 3B, and climbs over a tank wall.
Moreover, the moving body 6 descends to a height above the next recovery tank 3C so as to come into contact with the prewash water, moves up in the tank of the recovery tank 3C, climbs over the tank wall, and then moves to the next water wash. Above the tank 4, it is lowered to a height at which it comes into contact with the washing water, moves up in the tank of the washing tank 4, moves up over the tank wall, and then is transferred to the next process. It will be going.

During this time, it is possible to take out prewash water from the collection tanks 3A to 3B, carry out prewash water from the collection tanks 3B to 3C, and carry out prewash water from the collection tank 3C to the water wash tank 4, respectively. Therefore, the effect that the contamination of the washing water in each tank (a situation where the concentration of the treatment liquid increases) is prevented as much as possible is obtained similarly.
As shown in FIG. 5, between each tank 2-4, wash water is always counterflowed from the washing tank 4 to the collection tank 3C via the second countercurrent means 12, and each collection tank 3C → 3B → Prewash water is counter-fed to 3A via the intermediate countercurrent means 13, and prewash water is countercurrently fed from the recovery tank 3A to the treatment tank 2 via the first countercurrent means 11. Has been.

  Then, the processing liquid is fed from the processing tank 2 to the preliminary tank 15 by the piping member 16. In the preliminary tank 15, the high-concentration processing liquid taken out by the concentrator 18 is returned to the preliminary tank 15, so that the processing liquid in the preliminary tank 15 is adjusted and held at a predetermined concentration. Yes. Since this processing liquid is fed to the processing tank 2 through the branch pipe 57 connected to the suction pipe 20, the processing liquid in the processing tank 2 also maintains a predetermined processing liquid concentration. Yes.

  As described above, no waste liquid is generated from any of the washing tank 4, the recovery tank 3 (3A to 3C), the treatment tank 2, and the spare tank 15. Therefore, the surface treatment apparatus 1 according to the present invention does not require any dedicated drainage facility. Therefore, it can be introduced to places where installation is difficult due to environmental problems without being restricted by water quality regulations. Naturally, it is possible to reduce drainage facility maintenance costs and wastewater treatment costs required for wastewater treatment, and to reduce the cost of products.

  In the surface treatment apparatus 1 according to the present invention, it is necessary to replenish the washing water to the washing tank 4 and replenish the treatment liquid to the treatment tank 2 or the reserve tank 15, but both are within an appropriate range. In other words, it is possible to achieve a significant cost reduction compared to a surface treatment device (Patent Documents 1 to 3 etc.), which has been impossible to operate without any drainage, although it has been so far drained. It has become.

Further, in the washing tank 4, if a long time is used, a small amount of processing liquid components are mixed in the washing water. However, as described above, it is possible to take out the liquid storage in each tank by the moving body 6. Therefore, the replacement frequency of the remover 58 that performs adsorption removal of the mixed processing liquid component can be extremely reduced. Therefore, these treatment costs are not so high as to impede the implementation of undrained operations (so as to impose an excessive burden on running costs).
[Second Embodiment]
FIG. 6 shows a second embodiment of the surface treatment apparatus 1 according to the present invention.

In the second embodiment, the processed product W formed in a cup shape (bottom cylindrical shape) is targeted. Then, along with the characteristic shape of the processed product W, the moving body 6 is configured as a holder for the processed product.
In addition, the lifting frame 31 is centered on the pivot 45 with respect to the conveying frame 30 in that it is cantilevered so that the lifting frame 31 protrudes substantially horizontally from the conveying frame 30 to above the tanks 2 to 4. Is the same as that of the first embodiment.

In addition, the lifting frame 31 is different from the first embodiment in that only one support member 47 protrudes downward. However, the rotation drive unit 36 of the moving unit rotating mechanism 37 is provided with respect to the support member 47. It is the same as that of 1st Embodiment that the gear transmission mechanism (input gear 36a, intermediate gear 36b, output gear 36c) to comprise is provided.
The moving body 6 is based on the output gear 36c of the rotation driving unit 36 provided on the support member 47, and a plurality of support rods 71 connected to the output gear 36c so as to protrude along the direction of the rotation axis. The disc-shaped holder member 72 held by the support rod 71 at a position close to the output gear 36c, and held by the support rod 71 at a position away from the output gear 36c so as to form a pair with the holder member 72. And a disk-shaped holder 73.

The cup-shaped processed product W described above is held between the pair of holder members 72 and 73, and the support rod 71 has an outer peripheral portion of the output gear 36c so as not to interfere with the processed product W. Are arranged at equal intervals of 2 to 6 locations. The support rod 71 is used as a cathode electrode.
The holder member 72 closer to the output gear 36c supports the cup port side of the cup-shaped processed product W, and is a positioning convex portion that fits the cup port side of the processed product W into a fitting state without backlash. 74 is formed. An anode electrode 75 is supported on the holder member 72 so as to protrude into the processed product W. The holder member 72 is formed with a through hole for allowing the processing liquid to contact and flow through the inner surface of the processed product W and the anode electrode 75.

  On the other hand, the holder member 73 away from the output gear 36c supports the cup bottom side of the cup-shaped processed product W, and has an insertion / removal port 76 that can pass through the processed product W. A lid member 77 that can close the insertion / extraction port 76 is provided. The lid member 77 is swingable with the pivot portion 25 as a fulcrum, and the swing opening / closing port 76 is opened or closed by the swing. The lid member 77 is provided with a presser pin 80 that presses the bottom side of the processed product W when the insertion / extraction port 76 is closed.

In the movable body 6 having such a configuration, the outer shape thereof is a cylindrical shape having a pair of holder members 72 and 73 each having a disk shape as both ends. That is, a corner 6c is formed on the outer surface of the movable body 6 so as to surround the outer peripheral portions (outer edges) of the holder members 72 and 73.
Therefore, in this 2nd Embodiment, the raising / lowering frame 31 moves with the conveyance of the conveyance frame 30 by the conveyance means 7, and the moving body 6 hold | maintained at this raising / lowering frame 31 is used for each tank, such as the processing tank 2. FIG. A downward movement toward the inside of the tank is performed above, and after this downward movement, an upward movement to get over the tank wall is performed. When the movable body 6 is raised, the movable body 6 is held so that the outer cylindrical shape is inclined further beyond the state where the longitudinal direction is horizontal.

  That is, in the moving body 6, the corner portion 6 c generated on the outer peripheral surface of the holder member 72 closer to the output gear 36 c due to the ascent at this time is the lowest (the two-dot chain line in FIG. 6 is reference). For this reason, the processing liquid adhering and remaining on the outer surface and the inner surface of the moving body 6 is concentrated toward the corner portion 6c which is the lowest position. Therefore, these processing liquids flow down or drop downward from the corner 6c, that is, into a tank such as the processing tank 2.

  In other words, also in the cup-shaped processed product W housed inside the moving body 6, one place in the circumferential direction on the cup mouth side is the lowest position in the moving body 6. Therefore, the processing liquid adhering and remaining on the outer surface and the inner surface of the processed product W is transmitted from the lowest position in the processed product W to the movable body 6, and the lowest corner in the movable body 6 is obtained. It concentrates on the corner | angular part 6c, or comes to drip or dripping directly from the processed goods W into tanks, such as the processing tank 2. FIG.

Thus, even if the moving body 6 is transported between the respective tanks, the removal of the processing liquid by the moving body 6 is prevented as much as possible, and the stored liquid in the tank installed on the downstream side in the transporting direction becomes dirty (processing liquid concentration). Is increased) as much as possible.
In the second embodiment, when the moving body 6 is lowered, the rolling wheels 34 provided on the elevating frame 31 are in contact with the rotation-giving rail 35 so that the rotation driving unit 36 is rotationally driven. For this reason, the rotational drive unit 36 causes the moving body 6 to rotate about the rotation center of the output gear 36c (that is, the axis orthogonal to the conveyance direction in plan view).

Other configurations, operating conditions, and operational effects in the second embodiment are substantially the same as those in the first embodiment, and detailed descriptions thereof are omitted here.
Incidentally, FIG. 7 shows a reference example configured using the basic principle of the surface treatment apparatus 1 according to the present invention.
In this reference example , a processed product W formed in a plate shape or a block shape is targeted. Then, along with the characteristic shape of the processed product W, the movable body 6 is configured as the processed product W itself.

In addition, the lifting frame 31 is centered on the pivot 45 with respect to the conveying frame 30 in that it is cantilevered so that the lifting frame 31 protrudes substantially horizontally from the conveying frame 30 to above the tanks 2 to 4. Is the same as in the first and second embodiments.
The lifting frame 31 is provided with a holding mechanism 85 that can hold the movable body 6 (that is, the processed product W) in a detachable state. The holding mechanism 85 is, for example, a clamp device that holds the moving body 6, a hanger device that suspends the moving body 6, or an attachment member that screws the moving body 6. Thus, the structure of the holding mechanism 85 can be appropriately changed according to the shape and structure such as the movable body 6.

Since the moving body 6 has a plate shape or a block shape, a corner portion 6c is formed between two sides (or two surfaces) 6d and 6e on the outer surface thereof.
Therefore, in this reference example , when the ascending operation for moving over the tank wall between each tank of the moving body 6 is performed, the corner portion 6c is held so as to be at the lowest position. Therefore, the processing liquid remaining on the outer surface of the moving body 6 is concentrated toward the lowest corner portion 6c, and this processing liquid is downward from the corner portion 6c, that is, the processing tank 2 or the like. It flows down or drops into the tank.

Thus, even if the moving body 6 is transported between the respective tanks, the removal of the processing liquid by the moving body 6 is prevented as much as possible, and the liquid storage in the tank installed on the downstream side of the transport becomes dirty (the concentration of the processing liquid is high). Is prevented as much as possible.
In this reference example , the moving part rotating mechanism 37 is not provided, and the elevating frame 31 is not provided with the rotation driving part 36. Other configurations, operating conditions, and effects in this reference example are substantially the same as those in the first and second embodiments, and detailed descriptions thereof are omitted here.
[ Third Embodiment]
FIG. 8 shows a third embodiment of the surface treatment apparatus 1 according to the present invention. In the third embodiment, the first countercurrent means 11 for countercurrent connection from the recovery tank 3 (3A) to the processing tank 2 is not directly connected to the processing tank 2 from the recovery tank 3A. The counter-current connection structure is such that it is connected to the preliminary tank 15 and connected to the treatment tank 2 via the auxiliary tank 15 through the branch pipe 57.

  When such a countercurrent connection structure is employed, excess water is removed in advance in the preliminary tank 15 (concentrator 18) from the prewash water that is fed countercurrently from the recovery tank 3A to the treatment tank 2. As a result, the processing liquid after being adjusted to a predetermined concentration is fed from the preliminary tank 15 to the processing tank 2. Therefore, the treatment liquid stored in the treatment tank 2 is always maintained at a predetermined concentration, and an advantage that a stable surface treatment is performed can be obtained.

The third other configurations and operating conditions and advantages in the embodiment are substantially similar to the first embodiment, detailed thereof will be omitted.
[Other Embodiments]
The present invention is not limited to the above-described embodiments, and can be appropriately changed according to the embodiments.

For example, in the moving part rotating mechanism 37 provided in the conveying means 7, instead of a structure that generates rotational power by the contact between the rolling wheels 34 and the rotation-giving rail 35, the movable body 6 is rotationally driven on each lifting frame 31. A small motor may be mounted. If such a small motor mounting structure is adopted, the number of rotations when the moving body 6 moves in each tank 2 to 4 (when immersed in the liquid storage in each tank) is changed to the type of liquid storage. Accordingly, variable control (including stopping rotation) can be performed. When the tank wall between the tanks 2 to 4 is crossed, the moving body 6 that is raised and inclined is rotated to obtain a centrifugal dehydration effect, or the processed product in the moving body 6 is agitated to be liquid. There is an advantage that the cutting effect can be enhanced.

The direction in which the moving body 6 is tilted can be opposite to the direction shown in FIGS. 1 and 6 (the direction in which the moving body 6 is lowered to the left in FIGS. 1 and 6).
The preliminary tank 15 is not always necessary. That is, the preliminary tank 15 may be omitted, and the concentrator 18 and the heater 17 may be provided for the processing tank 2. In some cases, the preparatory tank 15 (with the concentrator 18 and the heater 17) may be used together, and the concentrator 18 and the heater 17 may be provided in the processing tank 2 as well.

  The surface treatment apparatus 1 according to the present invention is not limited in the type of process to be installed, and is not limited in the type of surface treatment.

DESCRIPTION OF SYMBOLS 1 Surface treatment apparatus 2 Processing tank 3 Recovery tank 3A-3C Recovery tank 4 Flushing tank 5 Moving body 6 Moving body 6a Body part 6b Body edge part 6c Corner part 7 Conveying means 10 Plating line 11 Countercurrent means 12 Countercurrent means 13 Intermediate counter-current means 15 Preliminary tank 16 Piping member 17 Heater 18 Concentrator 19 Pump 20 Pipe 25 Pivot 26 Lid member 30 Transport frame 31 Lifting frame 32 Cam 33 Moving unit lifting mechanism 34 Rolling wheel 35 Rotating grant rail 36 Rotating drive unit 36a Input gear 36b Intermediate gear 36c Output gear 37 Moving part rotation mechanism 40 Guide rail 41 Support member 42 Wheel 43 Connection member 45 Axis 46 Support member 47 Support member 48 Spinning shaft 49 Construction frame 50 Cam follower 51 Spring 55 Wheel shaft 57 Branch pipe 58 Removal Equipment 71 Support rod 72 Holder member 73 Holder member 4 protrusion 75 Noh electrode 76 neck 77 lid member 80 pressing the pin 85 holding mechanism W treated product

Claims (4)

A treatment tank for storing the treatment liquid;
A water rinsing tank that is arranged on the side of this treatment tank and stores the washing water,
A collection tank that is disposed between the treatment tank and the water washing tank and stores pre-washing washing water;
A plurality of moving bodies arranged continuously along the arrangement direction of these treatment tanks, recovery tanks, and washing tanks,
While transporting these moving bodies from the treatment tanks to the washing tanks through the recovery tanks, the moving bodies are lowered to the height at which they are in contact with the treatment liquid, the pre-washing washing water, and the washing water above each tank. A transport means for raising the moving body to a height above the tank wall separating the tank and the tank,
The treatment tank and the recovery tank are connected by the first countercurrent means for feeding the pre-washing washing water for the collection tank to the treatment tank, and the recovery tank and the washing tank send the washing water for the washing tank to the recovery tank. Connected by a second countercurrent means for feeding,
The conveying means is configured to incline the moving body obliquely so that one of the corners generated on the outer surface of the moving body is at the lowest position when the moving body is raised between the tanks ,
The conveying means is
A transport frame that moves outside the tank along each tank;
An elevating frame for holding the movable body at a position where it is cantilevered so as to be able to swing up and down from the transport frame to above the tank and passes above the tank,
A rolling wheel rotatably held around an axis perpendicular to the conveying direction in a plan view at a position outside the tank with respect to the lifting frame;
A rotation imparting rail installed at a height that abuts against the rolling wheel only when the lifting frame swings downward;
A rotation drive unit that transmits rotational power that rotates when the rolling wheel abuts against the rotation-giving rail to the moving body, and rotates the moving body around an axis that is orthogonal to the conveyance direction in plan view;
An undrained surface treatment apparatus characterized by comprising: The conveying means is
The moving body that moves up and inclines is operated so as to start descending toward the tank on the downstream side in the transport direction while canceling the inclination of the moving body in accordance with the timing when the moving body climbs over the tank wall. Item 1. A surface treatment apparatus using no drainage according to item 1. It said conveying means,
A cam for imparting oscillating force for raising the movable body on the elevating frame by abutment at the outside of the tank location of each tank to the lifting frame to be conveyed along with the movement of the carrier frame The surface treatment apparatus using no drainage according to claim 1 or claim 2, wherein The surface treatment apparatus using no drainage according to any one of claims 1 to 3, wherein the moving body is a barrel for storing a processed product, a holder for holding the processed product, or the processed product itself. .

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