JPH0722142A - Method for supplying electric power to moving member and electric contact device - Google Patents

Abstract

PURPOSE:To establish a method of feeding current in good performance to a moving member which moves at a comparatively high speed, by contacting the moving member with energized particles, and supplying electric power to the moving member. CONSTITUTION:A vessel 20 is provided in which an assembly 20 of particles is held in such a condition as capable of flowing and which is equipped with a current feeding means 30 to supply electric power to this assembly 10 of particles, and a moving member 40 is inserted from an inlet 50 furnished at the vessel 20. The moving member 40 is contacted with the assembly 10 of particles, fed with current, and sent out to the next process from the outlet 60. This constitution allows supplying electricity in good performance even though the moving member is of continuous type which moves at a comparatively high speed and is subjected to an electric plating process, and further the method is free from risk of damaging the surface of the moving member. It is desirable that the particles consist of electroconductive spheres.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an electric contact device for supplying electricity to a moving member.

[0002]

2. Description of the Related Art Continuous members such as wire rods and strips are continuously electroplated. At that time, as a means for supplying electricity to the continuous member, a conduct roller, a conduct brush or the like is used.

However, the electrical contact with the continuous member may be insufficient by energizing with a conduct roller, a conduct brush or the like. As a result, sparks occur and are dangerous. Therefore, in order to maintain sufficient electrical contact, the moving speed of the continuous member is suppressed to be slow.
However, slowing down the moving speed of the continuous member lowers productivity and is not preferable.

Further, when a conduct brush or the like is used, the surface of the continuous member may be damaged, and the tendency becomes stronger as the moving speed of the continuous member becomes faster.

[0005]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is that even a continuous member that moves at a higher moving speed than the conventional one can supply electricity well and does not damage the surface of the continuous member. A method of supplying electricity to a moving continuous member.

It is a further object of the present invention that even a continuous member that moves at a higher moving speed than the conventional one can supply electricity satisfactorily and does not damage the surface of the continuous member. It is to provide an electric contact device for supplying the electric power.

[0007]

SUMMARY OF THE INVENTION The present invention includes a moving member,
The present invention relates to a method for supplying electricity to a moving member, which is characterized in that the moving member is brought into contact with an aggregate of particles that are in an energized state and can flow.

Further, the present invention relates to an electrical contact device characterized in that it is a container for holding an aggregate of granular materials in a fluid state, having an energizing means, and having an inlet and an outlet of a moving member.

The present invention will be described below. The granular material used as the contact in the present invention may be any one that can maintain electrical contact with the moving member. For example, a conductive spherical material can be used. Examples of such spherical objects include metal balls such as iron balls, aluminum balls, and copper balls, carbon balls, glass balls coated with a metal film, ceramic balls, plastic balls, and sponge balls. However, it is appropriately determined in consideration of the material of the moving member, the strength of the spherical object itself, the corrosiveness, and the like.

The size of the spherical object is not particularly limited and can be appropriately determined in consideration of the shape and size of the moving member. As a tendency, for a moving member having a small size, a smaller spherical object can be used from the viewpoint that good contact can be obtained. For example, the diameter is about 0.5 mm to 20 mm
The spherical object of is used. For moving parts with large dimensions,
It is also possible to use a larger sphere, and there is no particular upper limit, but for example, a sphere having a diameter of about 10 mm to 50 mm can be used. Further, for a moving member having a small size, a smaller spherical object can be used, for example, a spherical object having a diameter of about 0.1 mm to 0.5 mm can be used.

The above-mentioned granular material is used as an aggregate, and electricity is supplied from a member in contact with the aggregate to bring it into an energized state.
Furthermore, the aggregate of particulates is made flowable. By setting the flowable state, it is possible to supply electricity to the moving member without causing the particulate matter to damage the surface of the moving member even if the moving member comes into contact with the moving member. Here, the flowable state is a state in which the granular material can also move according to the movement of the moving member that moves while being in contact with the aggregate of the granular material. By making the aggregate of the granular materials in a flowable state, electricity can be satisfactorily supplied without damaging the surface of the continuous member.

The aggregate of the granular material and the moving member can be brought into contact with each other by passing a part of the moving member through the aggregate of the granular material. The contact area between the aggregate of particles and the moving member can be appropriately changed depending on the amount of electricity required for the moving member or the amount of current to be supplied to the moving member. For example, when a small amount of electric current is applied, the contact between the aggregate of particulates and the moving member may be small. In this case, only a part of the moving member passing therethrough is brought into contact with the aggregate of particulates, or the passage distance in the aggregate of particulates is shortened.
In addition, when a large amount of current is applied, the contact area between the aggregate of particulates and the moving member is increased. For example, the passage distance of the moving member in the aggregate of the granular materials may be long.

Next, the moving member is not particularly limited as long as it is a continuous member that moves continuously or intermittently and requires continuous supply of electricity. For example, the moving member can be a continuous member that is electroplated. Furthermore, the moving member may be a continuous member that is continuously processed in anodization, electrodeposition coating (electrophoretic electrodeposition), self-heating treatment, electrolytic polishing, electric discharge machining, or the like. Further, the shape of the continuous member is not particularly limited, and for example, a wire rod, a band member, a continuous terminal member,
A pipe material etc. can be mentioned.

Next, the electrical contact device of the present invention will be described with reference to the drawings. In the electrical contact device shown in FIG. 1, a container 20 holds the aggregate 10 of particulates in a fluid state. The container 20 has an energizing means 30 for supplying electricity to the aggregate 10 of granular materials. The strip-shaped moving member 40 is
Moving in the direction of the arrow, the inlet 50 provided in the container 20
Enter from the inside, contact the aggregate 10 of the granular material in the container 20,
It is energized and then exits at exit 60. The moving member 40 exiting from the outlet 60 proceeds to the next step.

FIG. 2 shows a case where the moving member 40 is a wire rod. The moving member 40 moves in the direction of the arrow, enters through the inlet 50 provided in the container 20, contacts the aggregate 10 of particulates in the container 20, is supplied with power, and then exits through the outlet 60. The moving member 40 exiting from the outlet 60 proceeds to the next step.

[0016]

EXAMPLES Next, the present invention will be further described based on examples. A resin container having a capacity of 250 ml, which has an inlet and an outlet of a moving member, and an iron ball 1200 having a diameter of 2 mm.
Zero pieces were put in, and a means for energizing iron balls was provided. The entrance and the exit were slits of 1.5 mm, which were slightly wider than the thickness (0.05 mm) of the belt-shaped moving member. The entrance and exit slits of this contact device have a width of 15 mm and a thickness of 0.05 m.
m band-shaped moving member. Furthermore, the belt-shaped moving member is
The contact device was moved to a continuous electroplating device. The band-shaped moving member was electroplated at a moving speed of 20 m / min and an energization amount of 40 A. As a result, sparks did not occur and good electroplating was possible.

[0017]

EFFECTS OF THE INVENTION According to the present invention, even a continuous member that moves at a higher moving speed than before can be supplied with electricity satisfactorily and does not damage the surface of the continuous member. It is possible to provide the electricity supply method and the electric contact device. By using the method and apparatus of the present invention, continuous members can be processed at a higher moving speed without causing sparks, and higher productivity can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic explanatory view of an electric contact device of the present invention.

FIG. 2 is a schematic explanatory view of an electric contact device of the present invention.

[Explanation of symbols]

 10 Aggregate of particulate matter 20 Container 30 Energizing means 40 Moving member 50 Inlet 60 Outlet

Claims (7)

[Claims] 1. A method of supplying electricity to a moving member, which comprises bringing the moving member into contact with an aggregate of energized and flowable particles. 2. The method according to claim 1, wherein the particles are conductive spheres. 3. The method according to claim 1, wherein the moving member is a continuous member for electroplating. 4. The method according to claim 1, wherein the moving member is a continuous member which is continuously treated in anodizing, electrodeposition coating, self-heating treatment, electrolytic polishing or electric discharge machining. 5. An electrical contact device, which is a container that holds an aggregate of particulates in a fluid state, has a current-carrying means, and has an inlet and an outlet of a moving member. 6. The device of claim 5, wherein the particles are conductive spheres. 7. The apparatus according to claim 5, wherein the moving member is a continuous member for electroplating.