JP2000144450A - Method and equipment for simultaneous treatment of immersion and liquid draining - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for simultaneously carrying out, in high efficiency, both immersion treatment and liquid draining treatment parallel to each other in one liquid tank and for preventing the scattering of treating liquid and flying-out of a material to be treated and also to provide simultaneous treatment equipment therefor. SOLUTION: While vertically moving a first bottom plate 13 simultaneously with a second bottom plate 14 provided at a position higher than that of the first bottom plate 13 in one liquid tank 10, when the bottom plates 13, 14 are in the lowest position, a material A to be treated on the first bottom plate 13 is subjected to immersion treatment in a treating solution 2 and simultaneously, parallel to this immersion treatment, a material A to be treated on the second bottom plate 14 above the treating liquid 2 is subjected to liquid draining. According to the vertical motion of the bottom plates 13, 14 which are inclined so that their respective ends on the inlet-port side become located in higher positions, respectively, the material A to be treated is successively moved from the first bottom plate 13 to the second bottom plate 14 and further to a discharge port 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for simultaneously immersing a processed object and draining the processed object after the immersion process in a single liquid tank, and an apparatus therefor.

[0002]

2. Description of the Related Art Conventionally, various surface treatments using a treatment liquid, such as rust prevention treatment and cleaning treatment of metal products, are generally performed by immersion treatment in which a treatment object is immersed in a treatment liquid, that is, dipping. Have been done. Then, it is necessary to drain the processing liquid adhered to the surface of the processed processing material taken out of the processing liquid before transferring to the next step.

[0003] As such a liquid draining process, a processing object is held for a predetermined time while being lifted on a liquid tank that has been subjected to an immersion process.
Conventionally, a method of dropping a processing solution by gravity has been widely performed. However, in this method, while the liquid draining process is being performed on the liquid tank, the immersion processing of the next processing object cannot be performed using the liquid tank, so that the processing efficiency is extremely poor.

Therefore, in the manufacturing process of automobile parts and the like that require higher efficiency, for example, anti-corrosion treatment of a vibration-proof rubber product having a metal cylinder on the inner and / or outer periphery of a cylindrical rubber is performed. In such a case, a method is generally adopted in which a liquid drainage tank is separately arranged next to the liquid tank containing the processing liquid, and the immersion treatment such as rust prevention treatment in the liquid tank and the subsequent liquid drainage treatment are performed in parallel. Have been.

For example, as shown in FIG. 6, a liquid tank 1 having a first bucket 3 and containing a processing liquid 2 such as a rust preventive liquid.
And a draining tank 4 having a second bucket 5 are installed adjacent to each other, and dedicated driving devices (not shown) for rotating the first and second buckets 3 and 5 are separately arranged, and immersion is performed. 2. Description of the Related Art There is known an apparatus that performs a treatment and a liquid removal treatment continuously and in parallel.
The bottoms of the first and second buckets 3 and 5 and surrounding walls are provided with a number of perforations (not shown) for the flow of the processing liquid 2 and the drainage of the liquid.

[0006]

In the processing apparatus shown in FIG. 6, the processing object A is charged into the first bucket 3 in the liquid tank 1 and immersion processing is performed.
Is turned to put the processing object A into the second bucket 5 in the liquid draining tank 4. While the drainage tank 4 is performing the drainage processing of the processing object A, the next processing object A is charged into the first bucket 3 returned into the liquid tank 1, and the immersion processing is performed in parallel. Further, the processed material A after the liquid draining process is thrown into the collection box 6 by turning the second bucket 5 and collected. As described above, since the immersion treatment and the liquid removal treatment of the processed object are performed in parallel, the immersion and liquid removal treatment time is as short as 6 to 8 seconds, which is efficient.

However, in this processing apparatus, the liquid tank 1 for immersion and the liquid drain tank 4 are separately arranged, and dedicated driving devices for rotating the first and second buckets 3 and 5 are respectively provided. Because of the necessity, there is a disadvantage that the installation area of the processing apparatus is increased and the equipment cost is increased. Further, since the processing object A is moved from the liquid tank 1 to the liquid draining tank 4 and further to the collection box 6 by the rotation of the first and second buckets 3 and 5, the processing liquid 2 scatters around and works. In addition to deteriorating the environment, there are inconveniences such as the processing object A jumping out of the apparatus and being caught between the apparatuses.

The present invention has been made in view of such a conventional situation,
Both immersion processing and liquid drainage processing are performed simultaneously in one liquid tank in parallel to reduce the installation area and equipment cost of the equipment while maintaining the processing efficiency. The purpose is to eliminate pop-outs and the like.

[0009]

In order to achieve the above object, the present invention provides a simultaneous immersion and draining method.
While the first bottom plate and the second bottom plate provided at a position higher than the first bottom plate are simultaneously reciprocated up and down in one liquid tank while maintaining the relative position, the bottom plate is in the lowest position. At this time, the processing object on the first bottom plate is immersed in the processing liquid, and at the same time, the processing object on the second bottom plate on the liquid surface of the processing liquid is drained.

In a preferred method of the above-described simultaneous immersion and liquid draining method, the relative positions of the first bottom plate and the second bottom plate provided at a position higher than the first bottom plate are maintained in one liquid tank. When the bottom plate is in the lowest position while simultaneously reciprocating in the up and down direction, the processed material on the first bottom plate is immersed in the processing liquid, and at the same time, the second bottom plate on the surface of the processing liquid is immersed. The processed material on the second bottom plate is discharged while the bottom plate is raised, and then the processed material on the first bottom plate is raised while the bottom plate is raised and further lowered to the lowest state. Is moved to the second bottom plate, and the processed material is supplied onto the first bottom plate. Each of these steps is performed while supplying the processed material to the first bottom plate at a rate of one stroke per vertical reciprocating movement of the bottom plate. It is characterized in that it is performed continuously.

In the simultaneous immersion and draining apparatus according to the present invention, there is provided one liquid tank having an inlet and an outlet for a processed material on opposing walls, and an inlet on the inlet side in the liquid tank. A first bottom plate provided so as to be movable up and down so as to be inclined so that the side end is higher; and a first bottom plate which is inclined so that the input end side is higher at a discharge port side in the liquid tank. A second bottom plate movably provided in a higher position than the first bottom plate, a baffle plate extending downward from an end of the second bottom plate on the side of the inlet, a first bottom plate in the liquid tank, and a second bottom plate. A relay stand installed between the two bottom plates, the relay stand having a top portion inclined so that the end on the side of the input port is higher;
One driving device is provided for simultaneously reciprocating the bottom plate and the second bottom plate vertically in the liquid tank while maintaining the relative positions.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION In the simultaneous treatment method of immersion and liquid drainage according to the present invention, a flat first bottom plate is provided in one liquid tank.
The second bottom plate and the second bottom plate are arranged at a position higher than the first bottom plate, and while the relative positions of the two are kept reciprocating in the vertical direction at the same time, the processing objects are placed on the first bottom plate and the second bottom plate, respectively. The immersion processing of the processing object is performed on the first bottom plate at the position, and the liquid draining processing of the processing object is performed on the second bottom plate at a position higher than the first bottom plate in parallel. In addition, the immersion treatment means all treatments performed by immersing the treated material in a treatment liquid (which may be water), and includes, for example, rust prevention treatment, pickling treatment, plating treatment, cleaning treatment and the like. Including.

More specifically, the first bottom plate and the second bottom plate (collectively referred to simply as the bottom plate) linearly reciprocate vertically in the liquid tank. When the bottom plate reciprocating in the up-down direction is in the lowest position, the processed material on the first bottom plate is immersed in the processing liquid, and the second bottom plate is positioned on the liquid surface of the processing liquid. Adjust the height of each bottom plate and the level of the processing liquid in the liquid tank. In the lowest state of the bottom plate, by stopping the movement of the bottom plate for a predetermined time, the immersion process is performed on the processed material on the first bottom plate, and at the same time, the draining process is performed on the processed material on the second bottom plate. It can be carried out.

When the simultaneous processing of the immersion and the draining is completed, while the bottom plate is lifted from the lowest position, the processed material on the second bottom plate after the draining is discharged from the outlet of the liquid tank and collected. Subsequently, the bottom plate rises and descends after reaching the highest state. During this time, the processed material on the first bottom plate after the immersion treatment is moved to the empty second bottom plate. At the same time or thereafter, the next processed material is supplied onto the empty first bottom plate. Then, when the bottom plate reaches the lowermost state, the movement of the bottom plate is stopped, and the immersion process and the liquid removal process are performed simultaneously as described above. It should be noted that the next processing object may be charged into the first bottom plate when the bottom plate reaches the lowest state or after that.

As described above, the immersion treatment and the liquid removal treatment are simultaneously performed in one slicing liquid tank at the same time, and the processed material is removed at a rate of once per one stroke of the vertical movement of the bottom plate. Continuous processing can be performed while supplying to one bottom plate. Therefore, extremely high processing efficiency can be obtained,
By reducing the size of the device, the installation area and equipment cost can be reduced. Furthermore, since the first bottom plate and the second bottom plate are both in the liquid tank, the processing liquid drained by the second bottom plate does not fall into the liquid tank and scatter outside the liquid tank, and the processing object is not liable to the liquid. Jumping out of the tank can also be prevented.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred apparatus for carrying out the method of the present invention will be described with reference to the drawings. As shown in FIG. 1 and FIG.
A tall (long in the vertical direction) rectangular tube-shaped liquid tank 10 is provided, and an input port 11 and a discharge port 12 of the processed material A are opened in a window shape on opposite side walls of the liquid tank 10. The input port 11 and the output port 12 are provided with an input chute 11a and a discharge chute 12a for slidingly inputting or discharging the processed material A, respectively.

Inside the liquid tank 10, a first bottom plate 13 is provided on the side of the inlet 11 and a second bottom plate 14 is provided on the side of the outlet 12.
Both are provided so as to be inclined so that the inlet side end is higher, and the second bottom plate 14 is held at a position higher than the first bottom plate 13. A baffle plate 18 extending downward is fixed to an end of the second bottom plate 14 on the side of the inlet. Also, the first bottom plate 1
Between the third bottom plate 14 and the second bottom plate 14 (and the baffle plate 18), a relay stand 19 is fixed to the bottom of the liquid tank 10 and is erected, and the top 19a is inclined so that the end on the inlet side becomes higher. ing.
Even when the bottom plate reaches the highest position, the baffle plate 18 has a length extending downward from the top 19 a of the relay stand 19.
Further, both ends of the relay stand 19 may be fixed to the side wall of the liquid tank 10.

As shown in FIG. 2, the first bottom plate 13 and the second bottom plate 14 have both side edges except for the inlet end and the outlet end on the cover plates 15a and 15b. It is connected and closed, so that the processing object A does not drop from both side edges. Further, upper ends of these cover plates 15a and 15b are fixed to a movable plate, and are connected via a rod 17a to an air cylinder 17 of a driving device installed on an upper frame 10a fixed to an upper portion of the liquid tank 10. .

If the first bottom plate 13 and the second bottom plate 14 are provided such that both side edges other than the inlet end and the outlet end are close to the wall surface of the liquid tank 10, Liquid tank 1
0, the processing object A does not drop, and thus the illustrated cover plates 15a, 15b
May not be provided. However, in this case, it is necessary to connect the drive rod by fixing a connecting rod or the like to each corner of the first bottom plate 13 and the second bottom plate 14 and fixing the other end to the movable plate 16.

In the device having such a structure, the first bottom plate 13 and the second bottom plate 14 connected to the movable plate 16 are simultaneously held by the air cylinder 17 as a driving device while maintaining the relative positions. It can be linearly reciprocated vertically in the tank 10. Also, the first bottom plate 13 and the second
Between the bottom plate 14 and the relay stand 19, and between them and the liquid tank 10
Since there is a gap between the wall and the surface of the processing liquid A, the processing liquid 2 can flow or flow down through the gap. In addition, the bottom plate 1 including the liquid tank 10
3, 14, the baffle plate 18, the relay stand 19 and the like can be made of a plastic material or a metal material.

Next, a specific processing operation by the above apparatus will be described with reference to FIG. 1 and FIGS. First, as shown in FIG. 1, when the bottom plates 13, 14 reciprocating in the vertical direction are in the lowest position, the processing object A on the first bottom plate 13 is immersed in the processing liquid 2, and The second bottom plate 14 at a higher position is located above the liquid surface of the processing liquid 2. In the lowermost state of the bottom plate (FIG. 1), the processed material A on the first bottom plate 13 is subjected to immersion processing, and at the same time, the processed material A on the second bottom plate 14 is drained.

When the simultaneous processing of immersion and drainage is completed, the bottom plates 13 and 14 start to rise from the lowest position by driving the air cylinder 17. The bottom plates 13 and 14 rise,
As shown in FIG. 3, when the second bottom plate 14 at a high position reaches the discharge port 12 of the liquid tank 10, the processing object A (liquid) The cut pieces naturally slide down and are discharged from the discharge port 12, and are collected in a collection box (not shown) through the discharge chute 12a.

Further, as shown in FIG. 4, when the first bottom plate 13 reaches the top 19 a of the relay stand 19, the first end plate 13 is inclined so that the end on the input port side becomes higher, as shown in FIG. 4. The processed material A (which has been immersed) naturally slides down from the bottom plate 13 and moves onto the top 19 a of the relay stand 19. At this time, the top portion 19a is also inclined so that the input port side end is higher, and the second bottom plate 14
Since the baffle plate 18 hanging down and fixed to the end portion on the side of the charging port is located, the processed product A is placed on the top portion 19 a of the relay stand 19 without falling into the liquid tank 10.

In the above description and FIGS. 3 and 4, the second
After the discharge of the processed product A (drained) from the bottom plate 14 is completed, the case where the processed product A (dipped) is transferred from the first bottom plate 13 to the top 19a of the relay stand 19 has been described.
As shown in FIG. 5, the first bottom plate 13 and the top 1
By adjusting the height of 9 a, it is possible to move the processed material A on the first bottom plate 13 to the top 19 a of the relay stand 19 simultaneously with the discharge of the processed material A from the second bottom plate 14.

In the normal case, the bottom plates 13 and 14 are set at the highest position in FIG. 4 or FIG. 5, and then start to lower.
Then, when the bottom plates 13 and 14 descend and the second bottom plate 14 reaches the top 19a of the relay stand 19, the baffle plate 18 is hidden below the relay stand 19 as shown in FIG. As a result, the top portion 19a of the relay stand 19 is temporarily moved from the first bottom plate 13 first.
The workpiece A (which has been immersed), which has been immersed, naturally slides down from the inclined top 19a and moves onto the empty second bottom plate. Although FIG. 1 shows the lowest state of the bottom plates 13 and 14, if the heights of the relay stand 19 and the second bottom plate 14 are adjusted, the processing object A is transferred to the second bottom plate 14 during the lowering of the bottom plate. Is also possible.

In the lowest state of the bottom plates 13 and 14 (FIG. 1), the next processed material A is supplied to the charging chute 11a and is charged from the charging port 11 onto the empty first bottom plate 13.
The processing object A is usually introduced into the first bottom plate 13 when the bottom plates 13 and 14 are in the lowest position as shown in FIG.
4, at the same time as or before or after the transfer of the processed material A to
It may be performed when it is in another state. That is, when the first bottom plate 13 that has descended reaches the inlet 11 or after that, the next processed material A can be supplied onto the empty first bottom plate 13.

Then, the bottom plates 13 and 14 stop moving in the lowermost state of FIG. 1, and simultaneously perform the immersion processing and the liquid removal processing for a predetermined time as described above. By continuously repeating such operations, the processing object A can be automatically and efficiently processed. Although there is no particular limitation on the treated product A, it is preferable to treat relatively large products such as anti-vibration rubber products for automobiles one by one,
A plurality of small objects may be collectively processed.

[0028]

According to the present invention, since the immersion treatment in which the treatment object is immersed in the treatment liquid and the subsequent liquid removal treatment are simultaneously performed in one liquid tank, efficient treatment is achieved. In addition, it is possible to completely prevent the processing liquid from scattering out of the liquid tank and the processing object from jumping out. In addition, since only one liquid tank and one driving device are provided, it is possible to reduce the installation area and equipment cost of the device, and to provide a highly reliable device that is simple in structure and free from failure. Can be.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing a specific example of a processing apparatus according to the present invention.

FIG. 2 is a schematic sectional view of the device of FIG. 1 of the present invention, taken along line II.

FIG. 3 is a schematic cross-sectional view illustrating a process of discharging a processed material according to the present invention.

FIG. 4 is a schematic cross-sectional view showing a process of moving a processing object in the present invention.

FIG. 5 is a schematic cross-sectional view showing a simultaneous process of discharging and moving a processed object in the present invention.

FIG. 6 is a schematic sectional view showing a conventional processing apparatus.

[Explanation of symbols]

 A Processed object 1 Liquid tank 2 Processing liquid 3 First bucket 4 Liquid drain tank 5 Second bucket 6 Collection box 10 Liquid tank 11 Input port 12 Discharge port 13 First bottom plate 14 Second bottom plate 15a, 15b Cover plate 16 Movable plate 17 Air cylinder 18 Baffle plate 19 Relay stand 19a Top

Claims (5)

[Claims] 1. A method according to claim 1, wherein the first bottom plate and a second bottom plate provided at a position higher than the first bottom plate are simultaneously reciprocated in a vertical direction while maintaining a relative position in one liquid tank. When in the lowermost state, the processed material on the first bottom plate is immersed in the processing liquid, and at the same time, the processed material on the second bottom plate on the liquid surface of the processing liquid is drained. , A simultaneous treatment method of immersion and drainage. 2. The method according to claim 1, wherein the first bottom plate and the second bottom plate provided at a position higher than the first bottom plate are simultaneously reciprocated in a vertical direction while maintaining a relative position in one liquid tank. In the lowermost state, the processed material on the first bottom plate is immersed in the processing liquid, and at the same time, the processed material on the second bottom plate on the level of the processing liquid is drained, and then the bottom plate is processed. The workpiece on the second bottom plate is discharged while the bottom plate rises, and the workpiece on the first bottom plate is moved to the second bottom plate while the bottom plate continuously rises and further descends to the lowest state, and the processed product is removed from the second bottom plate. 2. The method according to claim 1, wherein each of the steps is continuously performed while supplying the processed material to the first bottom plate at a rate of once per stroke of the vertical movement of the bottom plate. The simultaneous treatment method of immersion and liquid drainage described in (1). 3. A liquid tank having an inlet and a discharge port for a processed material on opposing walls, and an inlet port side end in the liquid tank which is inclined so that an end of the inlet port is higher, and is vertically oriented. A first bottom plate movably provided, and a sloping inlet end on the side of the discharge port in the liquid tank, which is inclined so as to be higher, and vertically movably provided at a position higher than the first bottom plate. A second bottom plate, and a baffle plate extending downward from an input port side end of the second bottom plate;
A relay stand, which is installed between the first bottom plate and the second bottom plate in the liquid tank and has a top portion inclined so that the end on the side of the inlet is raised, and a relative position between the first bottom plate and the second bottom plate. A simultaneous driving device for immersion and liquid drainage, comprising one driving device for reciprocating vertically in the liquid tank while holding the same. 4. The first bottom plate and the second bottom plate are closed by being connected to a cover plate connected to a driving device at both side edges except for an inlet end and an outlet end. The simultaneous immersion and draining apparatus according to claim 3, characterized in that: 5. The first bottom plate and the second bottom plate have opposite side edges except for an inlet end and an outlet end which are close to the wall surface of the liquid tank, and are provided with connecting rods provided at corners. 4. The simultaneous immersion and draining device according to claim 3, wherein the device is connected to one drive device.