JPS623389Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a partial plating device for a band-shaped plated object, and particularly to a partial plating device with improved positioning accuracy.

Various partial plating devices have been proposed and some of them have been put into practice for continuously applying intermittent partial plating to strip-shaped materials such as coils, ribbons, tapes, etc. As far as the applicant is aware, most of them have a complex overall structure and are not very efficient.

Therefore, the present applicant previously proposed a simple and efficient partial plating device for band-shaped materials using a rotating wheel (Japanese Patent Application No. 57-062356
−181887)). The partial plating device proposed earlier is equipped with a rotating wheel, a rotating masking band, and a nozzle body.The device guides the band-shaped material to be plated into a usage area formed in an arc near the top of the rotating wheel. The plating liquid is sprayed from a nozzle body fixed to the rotary wheel to plate the part of the strip-shaped object to be plated that faces through the plating liquid injection opening formed in the rotating wheel. According to the previously proposed partial plating device, efficient partial plating can be applied intermittently and continuously to a band-shaped plated object. However, in the partial plating device proposed in the future, in order to position the plating liquid injection hole formed in the rotating wheel and the part to be plated of the strip-shaped plating material guided thereto, the strip-shaped plating material is placed on the rotating wheel side. This is done by installing a pin that can be freely engaged in a small hole, and this is done by using the small holes, which the band-shaped plated item usually has in the longitudinal direction, on both sides, to connect the part of the band-shaped plated item to be plated. This is an attempt to position the plating liquid injection hole for applying the plating liquid there. Incidentally, the rotary wheel has a continuous groove on the outer circumferential surface of its cylindrical flange portion in order to receive the band-shaped plating material, but it is possible to easily process a rotary wheel having such a shape and to collect the plating material sprayed from the nozzle body. In order to form and process a rotating wheel in a state where liquid does not adhere to it, it is easy to select a synthetic resin material as a material, so the rotating wheel is formed from a synthetic resin material. - It is possible that some shrinkage may occur and the position of the pin protruding from the rotating wheel may be slightly misaligned. Therefore, expansion due to heat
Even if shrinkage occurs, it is necessary to correct the misalignment between the small holes in the band-shaped plated material and the pins that engage with the small holes, which led the applicant to propose this invention.

Therefore, the present invention aims to provide a partial plating device that has a simple structure, is easy to operate, and is efficient, and furthermore, a partial plating device that further ensures the accuracy of positioning for partial plating. In order to achieve the above object, the device for partial plating of a band-shaped plated object according to this invention has a structure in which a continuous groove for receiving a band-shaped plated object is provided on the outer circumferential surface of a cylindrical flange part, and a continuous groove is provided at the bottom of this continuous groove for receiving a band-shaped plated object. It has a rotating wheel in which plating liquid injection holes are intermittently formed through the side and the arcuate part near the top is used as the usage area, and a nozzle opening fixed to the inside of the rotating wheel and having a size corresponding to the usage area. In a device for partially plating a strip-shaped plated article, the apparatus includes at least a nozzle body containing an anode, and an endless rotating masking band that presses the strip-shaped plated article into the groove of the use area, in the longitudinal direction of the strip-shaped plated article. It has a plurality of pins on its outer circumferential surface that can be freely engaged with a plurality of small holes formed in advance,
A pair of positioning rollers are arranged on both the entry and exit sides of the rotating wheel, cathode means for a strip-plated cathode is arranged on at least one of the entry and exit sides of the rotating wheel, and the rotating wheel, the rotating masking band, and It is equipped with a driving means for rotating both positioning rollers synchronously.

The details of this invention will be explained below based on the embodiments shown in the drawings. This partial plating device includes a rotating wheel 1, a nozzle body 2, and a rotating masking band 3.
, a positioning roller 4 , a cathode means 5 , and a driving means 6 . To explain the following in order, first, the rotary wheel 1 is made of synthetic resin and has a tray-like overall shape, and unlike conventional wheels, there is no protruding pin (described later) that engages with a small hole, so consideration should be given to the pin. Since the disc part 7 is not required, it is easy to form, and the center of the vertical disc part 7 is rotatably supported, so that the whole disc part 7 can be freely rotated in the direction of arrow A in FIG. A flange portion 8 having a cylindrical shape as a whole is provided around the disk portion 7 and extending in the lateral direction (to the left in FIG. 4). The side surface other than this flange portion 8 is an open portion 9. On the circumferential surface of the cylindrical flange portion 8, a groove 11 for receiving a band-shaped plated material 10 is continuously provided in the circumferential direction. This groove 11 has a width W and depth sufficient to receive at least the strip-shaped plated material 10, and has a width and depth sufficient to receive the rotating masking band 3 and the strip-shaped plated material 10 together, as shown in FIG. It is sized according to the depth. At the bottom of the groove 11, there is a plating liquid injection hole 12 penetrating to the other side (downward in FIG. 4).
They are provided intermittently in the circumferential direction. The plating liquid injection holes 12 should correspond to the plating target portion 10a (see FIG. 7) of the band-shaped plating object 10, and are formed intermittently at the bottom of the groove 11 at equal intervals. Reference numeral 13 denotes an inclined opening, which is formed to expand downward over the entire inner circumferential surface of the flange as shown in FIG. Care has been taken to ensure that the plating solution returns well when applied by spraying it. Therefore, the degree of expansion of the inclined opening 13 and its degree of inclination are appropriately selected so that the plating solution that has consumed the anode ions can be immediately replaced with fresh plating solution and easily recovered. Arc portion 1 near the top of rotating wheel 1
4 is a plating processing zone, that is, a "use area".

The nozzle body 2 is fixed inside the rotating wheel 1 and has a nozzle opening 15 of a size corresponding to the area of use. As shown in FIG. 5, the nozzle port 15 is provided with a circular arc shape, in other words, a fan shape, in order to correspond to the arc-shaped usage area. An anode 16 is arranged inside. A lower part 17 of the nozzle body 2 is fixed to the upper edge of a tank 19 via a base 18, and a plating liquid supply pipe 20 extending from the outside to the inside through the open part 9 of the rotating wheel 1 is connected to the lower part 17. It has been done. This plating liquid supply pipe 20 is connected to a pump 21 as shown in FIG. 2, and this pump 21 is connected to the tank 19 via a pipe 22. The upper part of the tank 19 is opened so that the plating liquid flowing out from below the rotary wheel 1 can be quickly collected as will be described later. The anode 16 can be either soluble or insoluble, but in the example shown, it is an insoluble anode and is arranged to surround the entire nozzle opening 15.

The rotating masking band 3 is for pressing the band-shaped plating material 10 into the groove 11 in the area of use assumed in the circular arc portion 14 of the rotating wheel 1, and has an endless shape, and has two parts as shown in FIG. It is suspended around five rollers in total, including drive rollers 23 and 24, a variable-position tension adjustment roller 25, and a guide roller 25a. By adjusting the positions of the two driving rollers 23 and 24, the rotating masking band 3 can always come into contact with the area of the rotating wheel 1 in use. In the illustrated example, the tension adjustment roller 25 is variable in position in the vertical direction, but is not limited to this, and may be variable in position in the horizontal direction.

A pair of positioning rollers 4 are arranged on both the inlet and outlet sides of the rotary wheel 1, and are provided with a plurality of pins 26 protruding from their outer peripheral surfaces. As the positioning roller 4 rotates, these pins 26 engage with a plurality of small holes 27 formed in advance in the longitudinal direction of the strip-shaped plated object 10, and pins 26 are of a size that easily engages with the small holes 27. The small holes 27 are provided protruding from the outer circumferential surface at a distance equal to the distance L between the small holes 27. Although not shown in the drawings, this positioning roller 4 is replaceable and is provided with pins 26 of different sizes and positional spacings in order to correspond to the band-shaped plated objects 10 having different widths, that is, the sizes of the small holes 27 and the distances L between them. It is designed to be able to be replaced with another positioning roller.
Although the rotary wheel 1 is made of synthetic resin, the positioning roller 4 is made of metal, has a small diameter, is less likely to be deformed by heat, and has high processing accuracy.

The cathode means 5 is disposed on at least one of the inlet and outlet sides of the rotary wheel 1 (in the illustrated example, both the inlet and outlet sides as shown in FIG. 1), and cathodes the strip-shaped plated material 10 efficiently. In the illustrated example, the cathode roller 28 is employed as the cathode means 5. Of course, the cathode means 5 is not limited to the cathode roller 28, and a known cathode brush or other means may of course be used.

The driving means 6 is for synchronously rotating the rotary wheel 1, the rotary masking band 3, and both positioning rollers 4, 4, and in the illustrated example is composed of a motor 29 as a driving source, a sprocket 30, and a chain 31. . The sprocket 30 is attached to the shaft 32 of the rotating wheel 1, the shafts 33, 34 of two drive rollers 23, 24 of the four rollers around which the rotating masking band 3 is suspended, and the shafts 35, 36 of both positioning rollers 4, 4.
Each sprocket 30 is provided with a chain 31 which suspends and connects the entirety of these sprockets 30, transmits the rotational force of the motor 29, and causes each sprocket to rotate synchronously.

In FIG. 1, reference numerals 37 and 38 are resin rollers serving as guide rollers, which are opposed to the positioning rollers 4 and 4, respectively, and are used to guide the band-shaped plated material 10.
The small hole 27 is the pin 2 of both positioning rollers 4, 4.
The rollers 6 and 26 are arranged in combination after adjusting their positions with respect to the positioning rollers 4 and 4, respectively, so that they can be sufficiently engaged with the rollers 6 and 26.

Next, the action will be explained. As shown in FIG. 1, the band-shaped plating object 10 is moved from the right side to the left side, and the cathode roller first contacts the band-shaped plating object 10 from the entry side to the exit side, and converts the band-shaped plating object 10 into a cathode. There is. Next, the strip-shaped plated material 10 comes into contact with the resin roller 37 and the positioning roller 4, and the small holes 27, which are provided in advance in the longitudinal direction, engage with the pins 26 of the positioning roller 4, and then both the drive rollers 23, 24 and the other The circular arc portion 14 at the top of the rotary wheel 1 is formed by an endless rotating masking band 3 which is suspended through the rollers of
In addition, on the exit side of the rotary wheel 1, it engages with the positioning roller 4 and the resin roller 38 as on the entry side, and also engages with the cathode roller 28. I'm being forced to do it. When the masking band 3 and the positioning rollers 4, 4 are caused to rotate synchronously by the driving means 6, the rotating wheel 1 rotates once, and the band-shaped plating object 10 is moved into the "use area" of the rotating wheel 1 at a set feed rate. I will be sent. In this "use area", the strip-shaped plated article 10 is pressed against the bottom of the groove 11 of the flange portion 8 by the rotating masking band 3, as shown in FIG. The upper side in Figure 4 is completely masked. In this state, when the plating liquid is supplied from the tank 19 and the plating liquid supply pipe 20 through the nozzle body 2, the plating liquid is injected upward from the entire nozzle opening 15 as shown in FIG. Plural plating target parts 1 of band-shaped plating object 10
0a [that is, the plurality of plating target parts 10a located within the usage area] are formed at the bottom of the groove 11 by the husband and wife because the rotary wheel 1, the rotary masking band 3, and both positioning rollers 4, 4 are rotated synchronously. The plating liquid injection holes 12 are aligned with the plurality of plating liquid injection holes 12, and each of them is exposed downwardly in FIG. 4 through the plating liquid injection holes 12.
The exposed parts 10a to be plated are instantaneously and simultaneously plated by applying the plating liquid ejected from the nozzle opening 15. When the plating liquid is injected from the nozzle opening 15, sufficient anode ions are supplied to the plating liquid. The plating liquid that is consumed upon contact with the plating target portion 10a and has consumed anode ions falls downward in FIG. 4 using the inclined opening 13 and is collected in the tank 19. During this time, rotating wheel 1, rotating masking band 3,
Both positioning rollers 4, 4 continue to rotate synchronously, and the belt-shaped plating object 1 is moved within a range corresponding to the arc length of the area of use.
A plurality of plating target portions 10a of 0 will be plated at the same time.

This invention is based on the content described above, so that when guiding the strip-shaped plated article to the above-mentioned usage area, the pin of the positioning roller is surely engaged with the small hole of the strip-shaped plated article on the entry and exit sides of the rotating wheel. By matching, in the above-mentioned usage area, the positions of the plurality of parts to be plated of the strip-shaped plating object are surely aligned with the plating liquid injection holes provided in the rotating wheel, and the accuracy of partial plating is improved. A small hole in the band-shaped plated material and a pin that engages with the small hole are
Since it is formed on a positioning roller that is provided separately from the rotating wheel, there is no need to consider pins when forming the rotating wheel using synthetic resin, making it easier to form the rotating wheel.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view of a partial plating device showing one embodiment of this invention, FIG. 2 is a side view of the partial plating device seen from the direction of the arrow in FIG. 1, and FIG. FIG. 4 is an enlarged sectional view of the main part along the arrow line in FIG. 3, FIG. 5 is a schematic perspective view of the nozzle body, and FIG. FIG. 7 is a schematic plan view of the driving means as seen from the viewing direction, and a partial perspective view showing the state of engagement between the positioning roller and the band-shaped plating object. 1... Rotating wheel, 2... Nozzle body, 3...
Rotating masking band, 4...positioning roller,
5... Cathode means, 6... Drive means, 8... Cylindrical flange portion, 10... Band-shaped plating, 11
... Groove, 12 ... Plating liquid injection opening, 14 ... Arc part near the top, 15 ... Nozzle opening, 16 ... Anode, 26 ... Pin, 27 ... Small hole.

Claims (1)

[Scope of Claim for Utility Model Registration] A continuous groove is provided on the outer peripheral surface of the cylindrical flange portion for receiving a band-shaped plating material, and plating liquid injection holes are intermittently formed at the bottom of this continuous groove to penetrate to the other side. A rotating wheel whose use area is an arcuate portion near the top; a nozzle body fixed to the inside of the rotating wheel and having a nozzle port of a size corresponding to the use area and containing an anode; and a nozzle body having a built-in anode; In a partial plating device for a band-shaped plated object, which includes at least an endless rotating masking band that presses the band-shaped plated object, the device can be freely engaged with a plurality of small holes formed in advance in the longitudinal direction of the band-shaped plated object. A plurality of pins are provided on the outer peripheral surface, a pair of positioning rollers are arranged on both the entrance and exit sides of the rotating wheel, and cathode means for a strip-shaped plating cathode is arranged on at least one of the entry and exit sides of the rotating wheel. , and a device for partially plating a strip-shaped object, comprising a driving means for synchronously rotating the rotating wheel, the rotating masking band, and both positioning rollers.