JPH083158B2 - Power supply drum for surface treatment of the teeth of slide fastener chain - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a power supply drum used when a metal fastener provided in a slide fastener chain is subjected to a surface treatment such as electroplating to be electrically applied. Regarding

[Conventional technology]

As a conventional surface treatment device, for example, Japanese Patent Publication No. 25-25760.
The apparatus is provided with a pair of power supply drums and an electrode plate facing the outer periphery of each power supply drum in the electrolytic cell, and one surface of the slide fastener chain inserted from one side It is processed by bringing it into contact with the outer periphery and transferring it, and then by bringing the other surface of the slide fastener chain into contact with the outer periphery of the other power feeding drum and feeding it. By the way, the structure of the power supply drum described in the above publication is one in which a conductive disk is provided on the outer surface of the drum, and titanium or titanium alloy powder particles are mixed as means for imparting conductivity. .

[Problems to be Solved by the Invention]

By the way, when performing electroplating, it is necessary to process at a high current density. Therefore, in the power feeding drum according to the above-mentioned publication, it is necessary to increase the compounding density of powder particles such as titanium, but the higher the density, the higher the degree of the elastomer, and the slide fastener chain for the conductive elastomer layer. There was a drawback that the degree of contact of the metal tooth was lowered and the surface treatment was uneven.

The present invention is directed to solving the above-mentioned drawbacks, and provides a power supply drum for surely contacting the coupling teeth of the slide fastener chain and capable of dealing with a high current density, by applying a surface treatment to the coupling teeth of the slide fastener chain. Especially.

[Means for solving the problem]

The solution according to the present invention is to radiately embed innumerable metal wires connected to the power feeding shaft or a conductor made of a flexible thin metal plate in a disk formed of an elastomer fixed to the outer circumference of the power feeding shaft. However, the point is that the tip of each conductor is bent back or forth in the direction of rotation of the disk to form a power feeding surface at each tip of the conductor exposed flush with the outer peripheral surface of the disk. To do.

As another means for solving the problem, a circular movement is made around the outer peripheral surface of a disk formed of an elastomer adhered to the outer periphery of the power supply shaft, and is made organic by a woven or non-woven fabric made of a flexible thin metal plate or thin metal wire. The gist of the present invention is to attach a flexible and flexible power feeding surface formed of a continuous conductor and electrically connected to the power feeding shaft.

[Action]

Since the present invention has the above-described configuration, in the case where the power feeding surface is a conductor composed of innumerable conductive wires or conductive plates, each conductor is energized because it is continuous with the power feeding shaft, and each tip is bent. Therefore, the flexible elasticity can be imparted, and the power feeding surface conforms to the engaging teeth of the slide fastener chain and surely contacts.

Further, a conductor such as a woven or non-woven fabric made of a flexible thin metal plate or a conductive wire is organically continuous, and is soft and retains flexibility.
In this case as well, the power feeding surface conforms to the engaging teeth of the slide fastener chain and surely contacts.

〔Example〕

The power supply drum according to the present invention will be described in detail below.
In the example shown in the drawings and FIG. 2, a disc 2 formed of urethane resin, natural or synthetic rubber, or an elastomer obtained by foaming them is fixed to the outer periphery of the power feeding shaft 1, and the disc 2 has an outer peripheral surface in the width direction. It is provided so as to go around the engaging tooth guide groove 3 in the central portion, and a conductor 4a made up of innumerable metal wires is embedded in the center of the disk 2 in the width direction thereof, and each of the metal wires is Power supply shaft 1
To extend radially, and the tip of each metal wire is refracted to either the front or back with respect to the rotation direction of the disk 2, and the refracted tip surfaces are exposed flush with the bottom surface of the tooth guide groove 3. Therefore, the power feeding surface 5 is formed by the exposed front end surfaces of the metal wire. It should be noted that in FIG. 1, the conductor 4a inside is shown with a part cut away, and the respective metal wires are shown roughly for convenience of illustration, but in reality they are more densely packed. Further, since the engaging tooth guide groove 3 is not always necessary, the case is not shown,
The power feeding surface 5 is provided on the outer peripheral surface of the disk 2. Further, in the above example, the conductor 4a is embedded in the meat of the disk 2, but the base of each metal wire may be hollow, and only the bent portion may be filled with the elastomer.

In the example shown in FIG. 3, the conductor 4b of the above example is formed by stacking an infinite number of flexible thin strip-shaped metal plates, and each metal plate is the same as the above-mentioned metal wire. Similarly, it is connected to the power feeding shaft 1 and extends radially, and its tip portion is bent, and the bent tip surface is exposed on the outer peripheral surface of the disk 2, and the feed surface 5 is formed by each of these tip surfaces. It is a thing. The thickness of the flexible thin metal plate is suitably 0.03 to 0.05 mm, for example.

Next, in the example shown in FIG. 4, an elastomer disk 2 is fixed to the outer circumference of the power supply shaft 1 in the same manner as in each of the above-described examples, and the disk 2
Is provided with a coupling tooth guide groove 3 on the outer peripheral surface thereof, and a conductor 4c made of a flexible thin metal plate is provided on the bottom surface of the coupling tooth guide groove 3.
Are connected and attached in a ring shape, and the conductor 4c and the feeding shaft 1 are connected to each other through a disc 2 through a conductive wire (not shown). The metal plate of this example also has a thickness similar to that of the above example.

The example shown in FIG. 5 is an example in which the conductor 4d is formed by a woven fabric woven by arranging thin metal wires in the warp and weft in place of the thin metal plate of the above example, and the example shown in FIG. The conductor 4e is formed of a non-woven fabric in which thin metal wires are entwined in a felt shape with each other. In the conductors 4d and 4e made of woven cloth or non-woven fabric, the metal wires are organically continuous with each other. The other structures are the same as in the above example. Further, as common to the above-mentioned examples, the feeding surface may be provided directly on the outer peripheral surface of the disc 2 without providing the engaging tooth guide groove on the disc 2, and a convex stripe is provided at the position where the feeding surface of the disc 2 is provided. It may be formed and provided on the upper surface thereof.

A pair of feeding drums A and B having the above structure according to the present invention
7 are supported in parallel as shown in FIG. 7, the positive electrode 6 is provided on one side of one of the feeding drums A, and the other feeding drum B is provided.
Similarly, a positive electrode 7 is provided on the other side of the negative electrode so that the negative electrodes are connected to the power feeding shafts 1 and 1 of the power feeding drums A and B, respectively, and a slide fastener chain C having metal teeth is placed there. By the plurality of guide rolls 8 to 11, first, one surface is pressed against one side of the power feeding drum A, and then the other side of the other power feeding drum B is pressed into contact therewith, so that the front and back surfaces of the tooth are treated. It can be applied.

〔The invention's effect〕

With the power supply drum for subjecting the teeth of the slide fastener chain according to the present invention to the surface treatment, even if the conductor formed by densely packing the thin metal wires is embedded in the disc of the elastomer, the tip of each metal wire is Since each is bent, it can give elasticity to the feeding surface, and since each metal wire is connected to the feeding shaft, it can cope with this even with a large current density. Corresponding to each tooth, it surely comes into contact and is subjected to a reliable surface treatment.

Further, even when the power supply surface is formed of organically continuous conductors, all the conductors are electrically connected to the power supply shaft, and the power supply surface is soft and flexible. Since it is ensured, a large current density can be dealt with in this case as well, and the slide fastener chain is surely brought into contact with each tooth in correspondence with each tooth, and is subjected to even and reliable surface treatment.

[Brief description of drawings]

FIG. 1 is a front view showing, in a partially cutaway view, a power supply drum for surface-treating the teeth of a slide fastener chain according to the present invention, and FIG. 2 is a partially cutaway view of a power supply drum provided with a conductor made of a metal wire. FIG. 3 is a side view showing a partially cutaway view of a power feeding drum provided with a conductor made of a metal plate, and FIG. 4 is a part of a power feeding drum provided with a conductor having a ring-shaped metal plate. FIG. 5 is an enlarged cross-sectional view showing a part of a power supply drum provided with a conductor made of a woven metal wire, FIG.
FIG. 7 is an enlarged sectional view showing a part of a power supply drum provided with a conductor made of a non-woven metal wire, and FIG. 7 is a plan view showing an outline of a surface treatment apparatus using the power supply drum according to the present invention. 1 ... Feeding shaft, 2 ... Disc 4a, 4b, 4c, 4d, 4e ... Conductor 5 ... Feeding surface A, B ... Feeding drum of the present invention C ... Slide fastener chain

Claims (2)

[Claims] 1. A myriad of metal wires connected to the feeding shaft (1) or a flexible thin metal plate in a disk (2) formed of an elastomer adhered to the outer circumference of the feeding shaft (1). The conductors (4a, 4b) are radially embedded, and the tip of each conductor (4a, 4b) is bent to either the front or the rear with respect to the rotation direction of the disc (2), and the outer peripheral surface of the disc (2). A power feeding drum for surface-treating the coupling teeth of a slide fastener chain, characterized in that the power feeding surface (5) is formed by each of the front end surfaces of the conductors (4a, 4b) exposed flush with 2. A woven cloth or cloth woven from a flexible thin metal plate or a thin metal wire around the outer peripheral surface of a disk (2) formed of an elastomer adhered to the outer periphery of a power supply shaft (1). Organically continuous conductors such as cloth (4c, 4
d, 4e) and has a flexible and flexible feeding surface (5) attached to the feeding shaft (1) and electrically connected to the feeding shaft (1). Power supply drum for surface treatment