JPS61204386A - Method and apparatus for surface treatment - Google Patents

Abstract

PURPOSE:To improve cleanliness, etc. by feeding a material to be subjected to a surface treatment in one direction along a pass line and blowing liquid jets in opposite directions from both sides of the pass line to said material so that two times of the surface treatment are made possible. CONSTITUTION:The material 2 to be subjected to the surface treatment is inserted through an introducing hole 3 into a leading-out hole 4 and is fed in one direction on the pass line C. The jets of the fluid 7 are blown from the hole 3 parts to the material 2, by which the surface of the material is treated. A negative pressure is generated at the same instant in the holes 3 by such jets and the external air is admitted therethrough into the apparatus body B, by which the holes 3 are sealed. The similar jets are also blown from opposite directions to the hole 4 part of the pass line C, by which the surface treatment is executed again and the holes 4 are sealed.

Description

[Detailed Description of the Invention] The present invention is capable of effectively removing moisture and dirt from the surface of intermediate products and finished products during manufacturing processes such as surface treatment, and uniformly applying lubricating oil to the surface. Regarding the improvement of the surface treatment apparatus, in more detail, in the 1511th patent, a pass line (C
), the material to be surface treated (2) is fed in one direction, and the material to be surface treated (2) is inserted into the introduction hole (3) of the pass line (C).
A jet stream of the fluid (7) is sprayed in the feeding direction of the fluid (7) to treat the surface of the material to be surface treated (2). At the same time, the flow of the jet stream makes the introduction hole (3) a negative pressure. ) to let outside air flow into the device body (B) to seal the introduction hole (3), and then open the outlet hole (3) of the pass line (C).
At the part 4), a jet stream of the fluid (7) is sprayed in the direction opposite to the feeding direction of the surface-treated material (2) to remove the surface-treated material (
At the same time as performing the surface treatment in 2) again, the outlet hole (4) is made negative pressure by the flow of the jet stream, and outside air is allowed to flow into the device body (B) through the outlet hole (4) to seal the outlet hole (4). This relates to a surface treatment method characterized by:
In the second invention, a jet jet expansion space (1) is provided inside the device main body (B), and an introduction hole (3) and an outlet hole (4) opened on the outer surface of the device main body (B) are provided in the device. Main body (B)
between the jet expansion space (1) and the introduction hole (3), and between the jet expansion space (1) and the outlet hole (4).
Jet flow passage holes (5) are formed between the tonneaus! I! A pass line (C) that penetrates the device body (B) is configured, and the jet jet passes through the jet jet passage so that the fluid (7) is ejected toward the jet jet expansion space (1) through the jet jet passage hole (5). Fluid ejection holes (8) are formed at the boundary between the hole (5) and the introduction hole (3) and at the boundary between the jet flow passage hole (5) and the outlet hole (4), and the jet flow expands from the jet flow expansion space (1). A drain hole (9) is provided on the outer surface of the device body (B).
) perforated in the device body (B).

When performing surface treatment such as plating on wire rods or strips wound on drums, or when using them as precision parts materials that do not like even the slightest dust, the products should be treated before plating or as precision parts materials. Before being incorporated into the product, there is a careful pickling process, alkaline washing process, water washing process, or cleaning process using trichloride or detergent to clean the surface, and
Before starting the next process, it is necessary to thoroughly remove and dry the treatment liquid and water on the surface, and if the product is to be shipped as is or cold drawn in the next process, the surface must be coated with lubricating oil and water evenly. When applying rust preventive oil or powder coating, it is necessary to apply the coating powder evenly, but the purpose of the present invention is to instantly remove even minute surface deposits. , the surface can be made extremely clean, and surface treatment and drying can be performed simultaneously and continuously.
Or, a surface treatment method and device that can uniformly apply lubricating oil, anti-corrosion oil, and powder to the surface, and can perform surface treatment in a completely closed loop without leaking the surface treatment agent to the outside. is to provide.

Hereinafter, the present invention will be described in detail according to illustrated embodiments.

FIG. 2 shows a first embodiment of the present invention, in which the material to be surface treated (2) is a wire rod. Ide outer cylinders (11) are fitted on both sides of the T-shaped tube (10), and are fitted onto the T-shaped tube (10) with the first cap nut (12). The space sandwiched between the inner cylinders (11) is the jet expansion space (1). The jet expansion space (1) may have a cylindrical shape, but it may also have a corner shape, and a spiral groove (31) may be formed on the inner wall to form the jet expansion space (1). 1) actively swirling airflow (
32), or the shape of the jet expansion space (1) may be formed into an elliptical cross section, a bowl shape, or a funnel shape in accordance with the diffusion of the jet flow. Furthermore, although the shape of the jet expansion space (1) is small in the embodiment diagram, it is of course not limited to this, and the diameter and length can be made larger to increase the capacity and reduce the pressure or pressure inside the jet expansion space (1). Make sure that the water pressure does not become too high, and if the pressure of one jet is high and the pressure of the other jet is weak, the weaker jet will be defeated by the air pressure or water pressure in the jet expansion space (1). T in Figure 0 may be designed to prevent backflow.
The downwardly extending portion of the tube (10) is a discharge hole (9) that opens to the outside from the jet expansion space (1);
〃Inner cylinder insertion hole (13
) is bored into this inner cylinder insertion hole (13), and the inner cylinder * (14) is screwed into this inner cylinder insertion hole (13) so that it can be screwed forward and backward. ) is formed in the shape of a mortar, and a jet flow passage hole (5) communicating from the hole bottom (15) into the T-shaped tube (10) is bored in the center of the outer fiiI (11). Incidentally, a spiral groove may be carved in the inner wall of the jet flow passage hole (5).The insertion side end of the inner hole (14) is shaped like a needle valve (16). The tip of the needle valve (16) is also tapered, and a small gap is created between the needle valve (16) and the hole bottom (15) to form a fluid jet hole (8). 8) and the introduction hole (3)* or the outlet hole (4) is an acute angle of about 15 degrees to 60 degrees. The ff [gap] of this fluid ejection hole (8) is adjusted by the screwing amount of the guide inner cylinder (14), and after adjustment, it is fixed by tightening the adjustment nut (1)). The needle valve (16) has an internal information insertion hole (
The needle valve (16) has a much smaller diameter than the needle valve (13).
) is generated around the fluid 'N*su (18). In addition, as another example of the fluid jet hole (8), a spiral groove is carved in the tapered surface of the ullE (15) or the needle valve (16) so that the fluid is spouted into the jet jet passage hole (5) while swirling. It is okay to do so.

Further, the fluid jet hole (8) is connected to the needle valve (16) as described above.
) and a tapered hole bottom (15).
) may be drilled around the area. Fluid reservoir Q (
1B) is provided with a fluid supply hole (19) communicating with the outside. ! I! Ta, is in the id! The tip of (14) is equipped with a ceramic nozzle (20) or a carbide nozzle (20) to improve wear resistance.
20), a wear-resistant resin nozzle (20) is fitted, and is fixed with a second bag nut (21). Of course,
The nozzle (20) may be attached by press-fitting.
0) and the center of the guide inner cylinder (14) is formed to match the outer shape of the wire rod, and is slightly thicker than the outer diameter of the wire rod (i.e., depending on the flow velocity of the jet stream, an introduction hole (3) and an outlet hole (4) are formed to match the outer shape of the wire rod. The gap is large enough to prevent the fluid from flowing backwards due to negative pressure inside. ), an introduction hole (3) and an outlet hole (4) having an inner diameter slightly smaller than that of the jet passage hole (5).
) and each! 1! It is set up.

The fluid (7) supplied to the fluid supply hole (19) contains gas,
There are liquids and powders, and examples of gases include air, fluorocarbon, and nitrogen. Freon and nitrogen are used to create a non-reducing atmosphere.In the case of 6Ii, cleaning solvents such as trichlene, abrasive liquids mixed with water, detergents, and fine abrasives are used. A lubricating fluid is used.

In the case of powder, very fine abrasive powder is used, and in the case of powder coating, fine coating powder is used. *First, we will explain how to drain water using this device. As shown in FIG. 1, the fluid supply hole (19) is
) is connected to the compressor (23), and the discharge hole (9) is connected to the cyclone (24). Next, the linear material to be surface treated (2) is inserted from the introduction hole (3) to the outlet hole (4),
Surface-treated material (2) at a constant speed on the pass line (B)
is fed in one direction. At the same time as feeding the material to be surface treated (2), compressed air is supplied from the compressor (23) to the surface treatment device (
The clean compressed air filtered by the filter (22) once enters the fluid reservoir ') (1B),
Then, the fluid is rapidly sent from the narrow fluid ejection hole (8) to the jet flow passage hole (5). The compressed air passes through the jet passage hole (5) at a rapid speed and hits the surface-treated material (2).
) and blow away the moisture on the surface.
On the other hand, the pressure at the introduction hole (3) and the outlet hole (4) becomes negative due to the flow of compressed air from the jet passage hole (5), and the air flows into the introduction hole (3) and the outlet hole (4). Brushing also occurs in this area due to outside air. Especially the outlet hole (4
), outside air flows in the opposite direction to the surface-treated material (2), and the flow rate of the outside air flowing over the surface of the surface-treated material (2) becomes relatively high, significantly enhancing the draining and drying effects. In this way, the compressed air containing moisture reaches the jet jet expansion space (1), expands rapidly, and swirls along the cylindrical wall surface to surround the surface-treated material (2). ) and further removes moisture from the surface of the surface-treated material (2). When the spiral groove (31) is carved on the inner wall of the jet expansion space (1), the swirling airflow (32) is formed more actively, and the draining and drying effect is enhanced. It contains enough water, and the inlet hole (
3) The swirling airflow (32) that has proceeded from Illll and the swirling airflow (32) that has proceeded from the outlet hole (4) side are decelerated at the center of the jet expansion space (1) and then flow into the discharge hole (9). The water then enters the cyclone (24) while separating the moisture. Upon entering the cyclone (24), moisture is further separated and dry air is discharged to the outside. The amount of compressed air is regulated by a valve (29). Here, when the capacity of the jet expansion space (1) is large, the collision between the swirling air flows (32) is avoided or alleviated, and the jet expansion space (1) is prevented from colliding with each other.
) does not become too high and the weaker jet flow does not flow backwards, and the compressed air is blown into the fluid supply hole (19) by the compressor (23), A similar result can be obtained by suctioning through the discharge hole (9), and depending on the case, compressed air may be press-in and suctioned at the same time. Moreover, the supply from the fluid supply hole (19) is of course not limited to only compressed air; the above-mentioned liquid or powder can also be blown into the surface-treated material (
The surface of 2) may be cleaned, polished, or oiled. Furthermore, as described above, it is not limited to just supplying the same type of fluid to the fluid supply holes (19), but it is also possible to supply liquid to one fluid supply hole (19) and the other fluid supply hole (19).
It is also possible to supply a different type of material, such as supplying gas to. Regarding this process, cleaning of the wire with trichlene will be explained as a typical example. The #l material is fed from the introduction hole (3) toward the outlet hole (4) as described above.

Supply Triclean under pressure to the left and right fluid supply holes (19),
It is ejected into the jet flow passage hole (5). The jet jet of trichlorene ejected into the jet jet passage hole (5) strongly brushes the surface of the wire rod, cleaning and removing dust and dirt with the monatomic M* of oil and fat. At this time, even if the cross section of the wire is not circular and has an intricate shape, the jet stream of Triclean is blown deep into the wire, achieving complete cleaning. When Triclean is supplied from the left and right fluid supply holes (19), the jet flow passage hole (
In 5), the flow rate of trichlene flowing on the surface of the wire becomes relatively high, increasing the cleaning effect. Also, past the jet passage hole (5), the outlet hole (4)
Once inside, the surface of the wire is brushed and dried by the external air flow sucked in by the negative pressure of the outlet hole (4).

On the other hand, when Triclean is supplied only to the inlet hole (3) side and outside air is supplied to the outlet hole (4) side, the outlet hole (
4) The wire rod can be dried more completely by the jet stream of outside air. Figure 13 shows the tJ of the present invention.
In the S2 example, a surface treatment agent supply hole (30
) is provided separately from the fluid supply hole (19), compressed air is supplied to the fluid supply hole (19), and the surface treatment agent is sucked in by the negative pressure of the introduction hole (3). There is. FIG. 6 shows a cross section of another embodiment of the shape of the outlet portions of the introduction hole (3) and the outlet hole (4), in which they are formed into a booster shape in accordance with the jet flow. FIG. 4 shows a third embodiment of the present invention, in which a ring-shaped partition wall (28) is provided in the center of the jet expansion space (1), dividing the jet expansion space (1) into left and right halves. This is to prevent the swirling airflows (32) from colliding with each other to prevent airflow turbulence and to discharge the swirling airflows (32) more smoothly.

(25) is a chamfer, which makes it easier to pass the material to be surface treated (2) through the surface treatment equipment fly (^). In addition, when applying lubricant, excess lubricant is stripped off by the outside air sucked into the outlet hole (4), and an appropriate amount of lubricant is applied. . Also, in Fig. 3, the guide outer cylinder (11) is screwed into the inner cylinder (6), and the inner cylinder (6) is inserted into the guide outer cylinder (11). (6) may be formed with a jet passage hole (5). In this case, the jet passage hole (5) may be formed in the jet passage hole (5).
) with different diameters! By preparing a large number of (6) and replacing them as appropriate, it is possible to adapt to wires with different diameters.

Figure 7.8 shows the fourth embodiment of the present invention, in which the surface-treated material (2
) is used when it is band-shaped. Device body (B)
is divided into an upper half (26) and a lower half (2). In this case, the introduction hole (3), the outlet hole (4), and the jet flow passage hole (5) are formed in the shape of a slit along the surface-treated material (2). Also, jet jet expansion space (1)
It is also formed in a rectangular parallelepiped shape in accordance with this, and the jet jet expansion air 1W1 (1) is formed from the jet jet passage hole (5).
The compressed air that is blown out rapidly expands and flows over the strip-shaped surface-treated material (2), and flows into the discharge hole (9). In this case, the main body (B) of the device Half (27
), so the material to be surface treated (2) placed on the pass line (C) is left as is (in other words, the material to be surface treated (2) on the pass line is separated halfway). It can be attached to and detached from the material to be surface treated (2) by simply attaching and removing bolts (without cutting). In addition, the material to be surface treated (2) is not limited to wire rods or strips as described above;
Of course, it also includes rods, and it is sufficient if it is a continuous body, regardless of its length. Figures 9 and 10 show a fifth embodiment of the present invention, in which a fluid ejection hole (ff13) is located in the center of the device body (B).
8), the third fluid ejection hole (8) is arranged obliquely with respect to the feeding direction of the surface-treated material (2).

As a result, the fluid (8) adhering to the surface of the surface-treated material (2) is discharged along the fluid ejection holes (8). In this case, the fluid ejection hole (8) has a slit-like shape at the outlet, and the fluid supply hole (19) and the slit groove (8a) communicate with each other through a large number of pores (8b).

(The following is a blank space) The first invention involves inserting the material to be surface treated through a pass line formed to penetrate the A11 body like soft soil, feeding it in one direction, and coating the material at the introduction hole of the pass line. A jet of fluid is sprayed in the feeding direction of the surface treatment material to treat the surface of the material to be surface treated. At the same time, the introduction hole is made negative pressure by the flow of the shet jet, and outside air is allowed to flow into the device body through the introduction hole. After sealing the introduction hole, a jet of fluid is sprayed in the direction opposite to the feeding direction of the material to be surface-treated at the outlet hole of the pass line to re-treat the surface of the material to be surface-treated, and at the same time the jet The flow creates a negative pressure in the outlet hole, and external air flows into the *fi body from the outlet hole to seal the outlet hole, so first of all, the direction of the jet stream in the forward direction and the jet stream in the opposite direction are changed. In the cleaning process, even dirt that cannot be removed in one direction can be completely removed, and in the coating process, excess fluid is stripped off to create a uniform coating layer. can be formed,
Furthermore, as mentioned above, secondly, since the inlet and outlet holes are sealed, the fluid does not leak to the outside, allowing for closed-loop work and keeping the work environment clean. In the second invention, the VT device body is provided with an introduction hole and an outlet hole that are opened on the outer surface of the device body, a jet jet passage hole is formed following the introduction hole and the outlet hole, and the jet jet passage hole and the introduction hole are formed. A fluid ejection hole is formed at the boundary between the jet passage hole and the outlet hole, and the fluid that passes through the jet passage hole at a rapid speed and is ejected toward the inner part of the device body is a jet jet. Vigorously brushes the surface of the material to be surface treated inside the passage hole,
It blows away moisture and dirt on the surface, cleans the surface, and at the same time contacts the suction outside air at the outlet hole to evaporate the liquid on the surface, cleaning and drying the surface continuously in one process. In addition, when applying lubricant, there is an advantage that excess lubricant oil and antirust oil can be stripped off at the outlet hole, and uniform application can be achieved. or,
The inner diameter of the introduction hole and outlet hole is smaller than the jet passage hole, so the jet? ) The flow of fluid in the jet passage hole creates a negative pressure, and the external air flowing into the inlet and outlet holes causes surface brushing in this area as well, improving the cleanliness and dryness of the surface. It has the advantage of being able to do things. Furthermore, since a jet expansion space with a larger inner diameter than the jet passage hole is provided inside the device body, fluid containing dirt and moisture reaches the jet expansion space, expands rapidly, and swirls along the wall surface. This has the advantage of creating a swirling airflow around the surface-treated material, thereby further removing fluid from the surface of the surface-treated material. In addition, since the fluid flows out into the jet expansion space from both the introduction hole side and the outlet hole side, the airflow advances from the introduction hole side and creates a circular swirl, and the air flow advances from the outlet hole side and creates a circular swirl. The airflow has the advantage of lowering the flow velocity and proceeding to the discharge hole, effectively separating the air from the fluid. If it is possible to improve dryness and cleanliness by supplying fluid, or by providing a discharge hole in the jet expansion space, it is possible to create a jet by suctioning from the discharge hole. There is an advantage in that a more powerful jet stream can be created by pumping fluid into the supply hole and suctioning it through the discharge hole at the same time.

[Brief explanation of the drawing]

FIG. 1 is a 70-view diagram of one embodiment of the present invention, FIG. 2 is a vertical sectional view of the first embodiment of the present invention, FIG. 3 is a longitudinal sectional view of the fjS2 embodiment of the present invention, and FIG. 4 is a longitudinal sectional view of the fjS2 embodiment of the present invention. A partial vertical cross-sectional view of a third embodiment of the jet expansion space of the present invention, FIG. 5 is a vertical cross-sectional view of a case where a spiral groove is carved on the inner wall of the jet expansion space of the present invention, and FIG. 6 is a vertical cross-sectional view of a third embodiment of the jet expansion space of the present invention. FIG. 7 is a vertical cross-sectional view of the fourth embodiment of the present invention, FIG. 8 is a front view of FIG. 7, and FIG. FIG. 10 is a longitudinal sectional view of the fifth embodiment of the invention, and FIG. 10 is a plan view of FIG. 9. (^) is the surface treatment device, CB) is the device body, (C) is the pass line, (1) is the jet expansion space, (2) is the surface treated material, (3) is the introduction hole, (4) is Outlet hole, (5)
is a jet jet passage hole, (6) is an id middle cylinder, (7) is a fluid, (8) is a fluid jet hole, (9) is a discharge hole, and (θ) is a fluid jet hole and an introduction hole or an outlet hole. It is the angle formed by Inventor: Masatsugu Murao Inventor: Aiseki Murao Inventor: Tsuyoshi Mochizuki

Claims (10)

[Claims] (1) The material to be surface treated is inserted through a pass line formed to penetrate the main body of the device and fed in one direction, and a jet of fluid is ejected in the feeding direction of the material to be surface treated at the introduction hole of the pass line. A jet stream is sprayed to treat the surface of the material to be surface treated. At the same time, the introduction hole is made negative pressure by the flow of the jet stream, outside air is flowed into the equipment body through the introduction hole, the introduction hole is sealed, and then the pass line is closed. At the outlet hole, a jet of fluid is sprayed in the opposite direction to the feeding direction of the material to be surface treated to resurface the material to be surface treated.At the same time, the outlet hole is made negative pressure by the flow of the jet stream, and the material is drawn out. A surface treatment method characterized by allowing outside air to flow into the device body through the hole and sealing the outlet hole. (2) The surface treatment method according to claim 1, wherein the jet flow is rapidly expanded within the apparatus body, and then the fluid is led out of the apparatus body. (3) The surface treatment method according to claim 2, characterized in that the jet stream that expands rapidly within the apparatus main body is formed as a spiral air stream. (4) Provide a jet jet expansion space inside the device main body,
The apparatus is provided with an introduction hole and an outlet hole that open on the outer surface of the apparatus body, and a jet passage hole is formed between the jet expansion space and the introduction hole and between the jet expansion space and the outlet hole. The boundary between the jet passage hole and the introduction hole and the boundary between the jet passage hole and the outlet hole constitute a pass line that penetrates the main body, and the boundary between the jet passage hole and the introduction hole and the jet passage hole and the outlet hole are formed so that the fluid is ejected toward the jet expansion space through the jet passage hole. 1. A surface treatment device comprising: a fluid ejection hole formed at each boundary, and a discharge hole opened from a jet expansion space to an outer surface of the device body. (5) A fourth aspect of the present invention is characterized in that a surface treatment agent supply hole for supplying a cleaning agent such as Triclean or detergent or a surface treatment agent such as abrasive powder is provided in the introduction hole or the outlet hole. The surface treatment device described in section. (6) The surface treatment device according to claim 4, characterized in that a spiral groove is carved into the inner wall of the jet expansion space. (7) The surface treatment device according to claim 4, characterized in that a spiral groove is carved in the jet passage hole. (8) The surface treatment device according to claim 4, characterized in that a spiral groove is carved in the fluid ejection hole. (9) The surface treatment apparatus according to claim 4, wherein the inner diameter of the jet flow passage hole is formed so as to gradually increase in the vicinity of the outlet as it approaches the outlet. (10) The surface treatment apparatus according to claim 4, wherein the inner diameter of the jet expansion space gradually increases from the entrance to the inner part.