WO2003033774A1

WO2003033774A1 - Submerged transfer plating device with plating fluid jetting tube

Info

Publication number: WO2003033774A1
Application number: PCT/JP2002/010165
Authority: WO
Inventors: Masatsugu Nagakura
Original assignee: Marunaka Kogyo Co., Ltd.
Priority date: 2001-10-15
Filing date: 2002-09-30
Publication date: 2003-04-24
Also published as: JP3382610B1; TW571003B; JP2003119589A

Abstract

A submerged transfer plating device for plating sheet-like rectangular products (W) while the products are transferred in plating fluid (A), comprising a plating fluid jetting device for jetting plating fluid toward the sheet-like rectangular products transferred in the plating fluid, wherein the plating fluid jetting tubes of the plating fluid jetting device are formed as tilted jetting tubes (5) disposed so that the upper sides of the tubes are tilted rearward and the lower sides thereof are tilted forward as viewed in the direction of transfer of the sheet-like rectangular products, whereby the plating fluid can be uniformly jetted from the jet ports (6) of the tilted jetting tubes (5) opposed to each other on both sides of the sheet-like rectangular products toward the sheet surfaces of the sheet-like rectangular products.

Description

Description Submerged plating processing equipment with plating liquid jet pipe

The present invention relates to a submerged plating processing apparatus provided with a plating liquid ejection pipe, and in particular, has a product guide function for guiding a sheet-shaped strip product such as a printed board conveyed in plating liquid. The present invention relates to a plating processing apparatus provided with a plating liquid ejection pipe having the same. '' Background technology

The product holding portion of a jig supported laterally movable by the cathode bar holds the upper part of the product of a sheet-shaped strip product such as a printed circuit board in a hanging state, and is held in a hanging state by the jig. The sheet strip product is supplied from the cathode bar through the jig at the upper part of the product, while the plating liquid in the plating tank in the plating tank is transported horizontally and horizontally along the cathode bar while the electric plating is being performed. A transport-type electric mesh processing apparatus is known (for example, Japanese Patent No. 2943070).

In such a submerged transfer type plating apparatus, the sheet-like strip product having the upper part of the product held in a suspended state by the jig is placed sideways in the plating liquid in the plating tank. When transporting horizontally, a product guide is used to prevent the conveyed strip-shaped product from shaking. As an example of this product guide device, a product guide mechanism proposed by the present inventor as Japanese Patent Application No. 2000-1990 is already disclosed. It is used. This product guide mechanism passes a rod-shaped product guide member that prevents the sheet-shaped strip product that is conveyed horizontally and horizontally in the plating solution in the plating tank from passing between the product guide members. The sheet-shaped strip product is disposed so as to be inclined downward or upward with respect to the conveying direction of the sheet-shaped strip product so as not to always shield the same horizontal position. Then, the product guide member is moved between the product guide members. An upper guide member for guiding an upper position of the sheet-shaped strip product with respect to the sheet-shaped strip product to be advanced, and guiding a range from a substantially middle portion to a lower position of the sheet-shaped strip product. The lower guide member is configured to move up and down with respect to the upper guide member fixed at a fixed position in accordance with the vertically long dimension of the sheet-shaped strip product. Things.

On the other hand, in addition to sheet-shaped strip products having a flat surface, there is an increasing demand for sheet-shaped strip products such as printed circuit boards having through holes and blind via holes (Blind Via holes) formed therein. In particular, since it is suitable for performing a uniform masking process even on a sheet-like strip product having the above-mentioned through-hole blind via hole formed therein, a nozzle for jetting a printing liquid toward the product surface is used. Plating apparatuses equipped with a plating solution jetting apparatus equipped with a chirping have come into wide use. As an example of the plating liquid jetting device, a plating liquid jetting device proposed by the present inventor as Japanese Patent Application No. 2000-3706707 (Japanese Patent Application Laid-Open No. 2002-173793) is disclosed. 2. Description of the Related Art A plating liquid jetting device shown as a base technology of the device is known. In short, this plating liquid jetting device is a rod-shaped plating liquid jet pipe which stands vertically and faces a sheet-like strip product which is conveyed horizontally and horizontally in the plating liquid in the plating tank. A large number of these liquid jetting pipes are fixedly installed in the plating tank, and a large number of these liquid jetting pipes are provided at predetermined intervals along the conveying path of the sheet-like product. A plurality of ejection ports are formed so as to face the sheet surface of the sheet-shaped strip product, and a jet liquid is ejected from these ejection ports toward the sheet surface of the sheet-shaped strip product. is there. The plating solution jetting pipe is vertically lowered and attached from a branch supply pipe provided along the product conveying direction, and a lower end of the plating solution jetting pipe is closed. Then, the branch supply pipe is connected to the discharge side of the circulation pump via a discharge pipe, and the suction side of the circulation pump is connected to the plating liquid in the plating tank via the suction pipe. The plating liquid is forcibly flown in accordance with the circulation path, and the forcibly flowed plating liquid is jetted from each outlet of the jetting liquid jet pipe.

The present inventor has manufactured and implemented a plating processing apparatus combining the above three components. I tried to run it. FIG. 5 and FIG. 6 schematically show the plating apparatus. The current plating system shown in Fig. 5 and Fig. 6 (hereinafter referred to as conventional system) is configured as follows.

The conventional apparatus is a plating processing apparatus that performs plating processing while a sheet-shaped strip product W is transported in plating liquid A. That is, the upper part of the sheet-shaped strip product W to be plated by the jig 2 movably supported by the cathode bar 1 is held in a suspended state, and the sheet held in the jig 2 in a suspended state. While feeding the strip-shaped product W from the cathode bar 1 to the upper part of the product via the jig 2, the strip product W is conveyed horizontally horizontally in the plating solution A in the horizontally elongated plating tank 3 along the cathode bar 1. It is configured to generate electric shock.

Further, the conventional apparatus is provided with a bar-shaped product guide member for preventing the sheet-shaped strip product W conveyed in the plating liquid A from swinging. This product guide member continuously guides the sheet-shaped strip product W conveyed horizontally and horizontally in the plating liquid A in the plating tank 3 in the transport direction. The product guide member includes an upper guide member 40 for guiding an upper position of the sheet-shaped strip product W, and a lower guide member 41 for guiding a range from a substantially middle portion to a lower position of the sheet-shaped strip product W. The lower guide member 41 is moved up and down with respect to the upper guide member 40 fixed at a fixed position in accordance with the longitudinal dimension of the sheet-shaped strip product W. I have. These product guide members are opposed to each other with a small gap between the sheet surfaces of the sheet-shaped strip product W to be conveyed. Further, these product guide members are arranged in the conveying direction of the sheet-shaped strip products W so as not to always shield the same horizontal position with respect to the sheet-shaped strip products W passed between the product guide members. It is arranged to be inclined downward or upward. Also, below the lower guide member 41, the product lower end of the sheet-shaped strip product W which is horizontally and horizontally conveyed in the plating liquid A in the plating tank 3 along the transport direction. A shield plate 16 for continuous shielding is provided. This shield plate 16 is provided to shield the lower end of the product where the current is concentrated and to make the plating thickness uniform. The shield plate 16 is the same as the lower guide member 41. It is fixed to the support member 42 and is configured to move up and down together with the lower guide member 41 in accordance with the longitudinal dimension of the sheet-shaped strip product W, that is, the height position of the lower end of the product. Further, the shield plate 16, which is opposed to the sheet-shaped strip product W with the lower end portion of the product in between, is an integrated type connected via a connecting member 43. The integral type is provided so that the opposing gaps between the lower guide member 41 and the shield plate 16 fixed to the same support member 42 and moved up and down are fixed.

Further, the conventional apparatus is provided with a plating liquid ejecting device for ejecting the plating liquid toward the strip-shaped product W conveyed in the plating liquid A. This plating solution jetting device is the same as the above-mentioned device, and stands upright with a sheet-like strip product W conveyed horizontally and horizontally in the plating solution A in the plating tank 3. A large number of the stick-shaped ejection pipes 5 are provided at predetermined intervals along the conveying path of the sheet-shaped product W, and these ejection pipes 5 are fixedly installed in the plating tank 3. A plurality of ejection ports 6 are formed in these plating liquid ejection pipes 5 so as to face the sheet surface of the sheet-shaped strip product W, respectively. The spouting liquid is spouted toward the sheet surface of. The plating solution jetting pipe 5 is vertically lowered and attached from a branch supply pipe 8 provided along the product conveying direction, and the lower end of the plating solution jetting pipe 5 is closed. The branch supply pipe 8 is connected to the discharge side of the circulation pump 11 via a discharge pipe 13, and the suction side of the circulation pump 11 is connected to the inside of the plating tank 3 via the suction pipe 12. The forcing liquid is forced to flow in accordance with the circulation path, and the forcing liquid liquid is ejected from each jet port 6 of the forking liquid ejecting pipe 5. What is important here is that the plating liquid jet pipe 5 is disposed outside the product guide member (the lower guide member 41) with respect to the product surface to be plated.

In FIGS. 5 and 6, reference numeral 44 denotes the support member 42 (the lower guide member 41 and the shield plate 16 are attached to the support member 42) so as to be movable up and down. A hanging rod for lowering and supporting is shown, and reference numeral 4 indicates an anode case containing an anode. However, it has been found that the conventional apparatus shown in FIGS. 5 and 6 has the following disadvantages.

As described above, the plating solution jetting tube 5 is disposed outside the product guide member (the lower guide member 41) with respect to the product surface to be plated. For this reason, the product guide member (the lower guide member 41) provided in front of the ejection port 6 of the plating liquid jet pipe 5 interferes with the product guide member (the lower side). The guide member 41) hindered uniform jetting of the plating liquid, making it difficult to perform uniform plating on the product. Further, the product guide member (the lower side guide member 41) is provided in front of the ejection port 6 of the plating liquid ejection pipe 5 so that the ejection port 6 of the plating liquid ejection pipe 5 can be used as a sheet of the product W. It could not be installed at the optimal position close to the surface, and the effusive effect could not be enhanced. In addition, since the sheet surface of the sheet-shaped strip product W that passes between the product guide members (the lower guide member 41) comes into contact with the guide member, there is a problem that the sheet surface is damaged. .

In addition, in a state where the lower guide member 41 is lowered in accordance with a large product, a large gap between the lower guide member 41 and the upper guide member 40 as shown in FIG. The guide area (L) is left empty. This non-guide area is a space for raising the lower guide member 41 in accordance with a small product. In the case of such a large product, there is a disadvantage that it is not possible to guide a product portion located in a wide non-guide range.

In addition, since the pair of shield plates 16 are integrated with each other via a connecting member 43, the sheet-shaped strip product W cannot pass through the connecting portion connected by the connecting member 43 in the vertical direction. When the size of a product that is continuously conveyed sideways is changed with a small gap on the side, a dummy product is provided between the products to be resized, and the product changed when the dummy product passes The height position of the shield plate 16 is raised and lowered in accordance with the height size. For example, when changing from a large-sized product to a small-sized product, a large-sized product dummy is provided after the large-sized product. In this case, the connecting member 43 hinders the shield plate 16 from being lifted to the next smaller product. Therefore, one or more small-size product dummies follow the large-size product dummy, and when passing through this small-size product dummy, the shield plate 16 is raised in accordance with the next small-size product. Become. In this way, a large number of product chips were required, and production efficiency could not be improved.

In view of such circumstances, the present invention is an in-liquid transport-type plating processing apparatus that performs plating processing while a sheet-shaped strip product is transported in plating liquid, wherein the sheet-like sheet is transported in plating liquid. Provided is a plating processing apparatus having a product guide function for preventing a strip product from swaying, and having a plating liquid jetting device for jetting a plating liquid toward the sheet-shaped strip product conveyed in plating liquid. In particular, an object of the present invention is to provide a plating apparatus capable of eliminating all the above-mentioned problems of the conventional apparatus. That is,

An object of the present invention is to remove a conventional guide member (lower side guide member) of the prior art, which is disposed in front of the ejection port of the plating liquid ejection pipe and is an obstacle, thereby reducing the number of the plating liquid ejection pipe. Eliminates the obstruction of the jet of liquid ejected from each of the jet outlets so that uniform jet processing can be performed.Furthermore, each jet formed in the jet of jet liquid is brought closer to the sheet surface of the sheet-shaped strip product. The purpose is to improve the ejection efficiency by reducing the pump capacity and to save power by reducing the pump capacity, and to leave a wide non-guided area like the conventional equipment. The above-mentioned sheet-shaped strip product has a purpose of enabling the entire sheet surface of the product to be guided without any trouble, and is conveyed through the plating solution by other means which does not hinder the achievement of these purposes. It is intended to achieve the product guide function to prevent rocking. Further, an object of the present invention is to provide a product guide function for preventing the sheet-like strip product from being shaken in the plating liquid by a contact guide using a solid material (a lower guide member) as in the prior art. Instead, it is intended to enable the product guide function to be achieved in a state of non-contact with a solid object, and not to damage the sheet surface of the product. Further, an object of the present invention is to allow a product to pass vertically between a pair of shield plates. In such a way as to be configured separately. In this way, by separating the pair of shield plates, even when the height of the product is changed, the product dummy is minimized to increase the production efficiency. That is, as described in the description of the prior art, when the size of a sheet-shaped strip product continuously conveyed sideways with a small gap on the side is changed, the size of the product is changed. A dummy product is provided between them, and the height of the shield plate is raised and lowered in accordance with the height of the product changed when the dummy product passes. For example, when changing from a large-sized product to a small-sized product, a large-sized product dummy is provided after the large-sized product. A pair of shield plates can be lifted from the position to the next raised position for the next smaller product. Therefore, necessary product dummies can be minimized and production efficiency can be increased. Disclosure of the invention

A submerged plating processing apparatus provided with a plating liquid jetting pipe according to the present invention includes a jig (2) supported by a bar (1) so as to be able to move laterally. The upper part of the sheet-shaped strip product (W) to be processed is held in a suspended state, and the sheet-shaped strip product held in a suspended state by the jig is placed along the bar in a plating tank (3). This is a plating processing apparatus that performs plating while transporting the plating liquid (A) horizontally and horizontally, and is opposed to the sheet-shaped strip product that is transported horizontally horizontally in the plating liquid in the plating tank. A large number of rod-shaped plating liquid jet pipes (.5) are provided at regular intervals along the conveying path of the sheet-shaped strip product, and these plating liquid jet pipes are fixedly mounted in the plating tank. These liquid jets are Are formed with a plurality of ejection ports (6) facing the sheet surface of the sheet-shaped strip product, respectively. The spray liquid is uniformly applied from these ejection ports toward the sheet surface of the sheet-shaped strip product. It is based on the prerequisites for the provision of a plating liquid jetting device for jetting, and has the following features.

First, the present invention (described in claim 1) provides the above-mentioned plating liquid jet pipe (5) An inclined jet pipe (5) which is arranged with the upper pipe side inclined rearward and the lower pipe section inclined forward in the direction of transport of the sheet-like product, and transporting the sheet-like strip product. At least a plurality of the inclined jet pipes are opposed to the sheet surface of the sheet-like strip product to be conveyed by setting a large interval between the inclined jet pipes (5) provided at regular intervals along the track. It is characterized in that it is provided at an interval. As a result, the sheet-shaped strip product whose upper part is sandwiched by the jig and conveyed through the plating solution is moved between the opposed inclined jet pipes by the upper part of the product sandwiched by the jig. Between the inclined ejection pipes which are continuously passed from the side to the unstable product lower side and which are opposed by the ejection pressure of the plating solution ejected from each ejection port of the opposed inclined ejection pipe. Will be guided along. In this way, the product guide function is provided to the inclined ejection pipe, so that the prior art product guide member (lower side guide member) which was disposed in front of the ejection port of the liquid ejection pipe and was obstructive. This makes it possible to eliminate the obstruction of the jet of the liquid and to perform a uniform discharge of the liquid. In addition, since the obstructive product guide member (lower side guide member) described in the prior art can be removed, the inclined ejection pipes, that is, each ejection port formed in the ejection pipe can be removed from the sheet-like product. It can be arranged at an optimal position close to the seat surface, and the plating efficiency can be improved. Further, by providing the inclined ejection pipe with a guide function, it is possible to guide the entire sheet surface of the product without leaving a wide non-guide area as in the conventional apparatus. Further, the sheet-shaped strip product passing between the inclined ejection pipes is guided by the ejection pressure of the plating liquid ejected from the ejection port of the inclined ejection pipe, and is guided in a state of not contacting a solid object. There is no risk that the sheet surface of the product will be scratched.

In the present invention (described in claim 2), the respective ejection ports (6) of the inclined ejection pipe (5) facing each other with the sheet-shaped strip product (W) interposed therebetween face each other. The printing liquid is uniformly ejected from the opposed ejection ports (6) toward the sheet surface of the sheet-shaped strip product. As a result, the sheet-like product which is conveyed through the plating liquid while the upper part of the product is held by the jig is moved from the upper side of the product held by the jig between the opposed inclined jet pipes. Unstable product The liquid is continuously passed to the lower side, and passes through the inclined jet pipes facing each other due to the ejection pressure of the liquid jet ejected from each of the jet ports of the inclined jet pipes facing each other. In addition to the above-mentioned function of the present invention, the inclined liquid is uniformly ejected from each of the opposed ejection ports toward the sheet surface of the sheet-shaped strip product, so that the confronted inclination is prevented. The product will be guided so as to pass through along the center position between the ejection pipes, and a function of further improving the guide function by the ejection of the plating liquid will be added.

In addition, the present invention (described in claim 3) provides a method for transporting a product upper part of the sheet-shaped strip product (W) which is horizontally and horizontally transported in the plating solution in the plating tank (3). A product upper guide member (14) that guides the product continuously along the direction is provided, and the product upper guide member is provided with a product holding position by the product holding portion (2A) of the jig (2). In the vicinity of the lower portion, the sheet surface of the upper part of the product, which is located at a position higher than the position of the ejection port (6) formed at the uppermost part of the inclined ejection pipe (5), is opposed to each other with a slight gap therebetween. The product is formed so as to extend along the direction in which the product is transported, and the starting end of the upper guide member of the product is located in front of the arrangement range of the inclined ejection pipe with respect to the transport direction of the sheet-shaped strip product. It is located in. As a result, the conveyed sheet-shaped strip product W is first guided by the product upper guide member 14 at the upper part of the product, and the inclined product is guided by the product upper guide member 14 while the product upper part is guided. Almost the entire sheet surface is guided by the pipe 5.

Further, the present invention (described in claim 4) is characterized in that the product lower end of the sheet-shaped strip product (W) conveyed horizontally and horizontally in the plating solution in the plating tank (3) is provided. A shield plate (16) is provided for shielding from both side directions along the transport direction, and the shield plate is provided inside each of the inclined jet pipes (5) facing each other, and is provided by the shield plate. A pair of the shield plates, which are respectively mounted near the lower end of the product to be shielded and shield the lower end of the product from both side directions, allow the product to pass vertically between the pair of shield plates. The shield plate is further provided in the plating processing tank. With the inclined jet pipe fixedly installed as a guide axis, the inclined jet pipe is configured to move up and down in accordance with the height position of the lower end of the product while maintaining a horizontal state along the inclination direction of the inclined jet pipe. It is. This allows the shield plate to maintain a horizontal state along the inclined direction of the inclined jet pipe with the inclined jet pipe fixedly installed in the mask processing tank being used as a guide axis. Since it is configured to move up and down in accordance with the height position of the part, even if it is configured without providing a connecting member between the pair of shield plates, it is possible to fix the facing distance between the pair of shield plates it can. In this way, by separating the pair of shield plates so that the product can pass vertically between the pair of shield plates, the product can pass vertically between the pair of shield plates. However, production efficiency can be improved by minimizing product dummies. Further, the shield plate can be attached close to the lower end of the product, so that the shielding effect can be improved. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic front view of the present invention showing a product position as a viewpoint.

FIG. 2 is a partial longitudinal side view of the present invention.

FIG. 3 is a schematic perspective view showing a main part of the present invention with a part omitted.

FIG. 4 is a cross-sectional plan view showing the relationship between the inclined jet pipe and the shield plate according to the present invention.

Fig. 5 is a schematic front view of the prior art showing the product position from the viewpoint.

FIG. 6 is a partial longitudinal side view of the prior art. BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the present invention will be described with reference to FIGS. 1 to 4. The plating apparatus of the present invention (which is an electric plating apparatus in this embodiment) is a sheet-like sheet such as a printed circuit board which is subjected to plating by a jig 2 movably supported by a fixed cathode bar 1. The upper part of the strip product W is held in a suspended state, and the sheet-shaped strip product W held in a suspended state by the jig 2 is placed in the cathode bar: Then, the electric plating is performed while the plating liquid A in the plating processing tank 3 is horizontally transferred horizontally along the cathode bar 1 while supplying power at the upper part of the product via the jig 2. The jig 2 is generally referred to as a hanger, and has a plurality of clip-type product holding portions 2A at its lower end for holding the upper part of the product in a suspended state. The tip of the product holding portion 2A is Since it is put into plating solution A with the product, it is covered with insulating material. Means for moving the jig 2 laterally (in the direction of arrow F) along the cathode bar 1 is not particularly limited. For example, the present inventor has disclosed in Japanese Patent No. 2943070. It is also possible to use a known transport technique (not shown) (by engaging an engaging claw attached to the jig with an endless-shaped toothed belt). Reference numeral 4 in FIG. 2 indicates an anode case containing an anode.

Reference numeral 5 denotes a rod-shaped plating liquid ejection pipe. The plating liquid ejection pipe 5 is a sheet of the sheet-shaped strip product W that is horizontally and horizontally conveyed in the plating solution A in the plating tank 3. A number of the sheet-shaped strip products W are provided at regular intervals along the conveyance path of the sheet-shaped strip products W. These liquid jet pipes 5 are fixedly installed in the plating tank 3 (fixed installation means will be described later). A plurality of outlets 6 facing the sheet surface of the sheet-shaped strip product W are formed at regular intervals in the pipe direction in the plating liquid ejection pipe 5. The plating liquid is sprayed toward the sheet surface of the strip-shaped product W.

The liquid jetting pipe 5 is an inclined jetting pipe (hereinafter, referred to as the liquid jetting) which is disposed so that the pipe upper side is inclined backward and the pipe lower side is inclined forward in the conveying direction of the sheet-shaped product W. The pipe 5 is referred to as an inclined jet pipe 5.) In the embodiment shown in the drawings, the inclination angle of the inclined jet pipe 5 is such that the product moves at the lower end of the pipe with respect to a vertical line (not shown) vertically lowered from the upper end of the inclined jet pipe 5. It is inclined about 30 degrees in the direction. This inclination angle of 30 degrees was suitable when the conveying speed of the product W was 5 to 10 mm / sec.

The mounting interval of the plurality of inclined jet pipes 5 that are provided at regular intervals along the conveyance path of the sheet-shaped strip product W is determined by the sheet of the sheet-shaped strip product W being conveyed. The mounting interval is such that at least a plurality of the inclined jet pipes 5 are arranged so as to face the surface. In the embodiment shown in FIGS. 1 and 3, the mounting interval of the inclined jet pipe 5 (along the product transport direction) is from four to the sheet surface of the sheet-shaped strip product W to be transported. The mounting interval is such that the five inclined ejection pipes 5 are arranged so as to face each other.

The plurality of jet ports 6 formed in the inclined jet pipe 5 facing each other with the sheet-shaped strip product W interposed therebetween are formed so as to face each other as indicated by an arrow in FIG. The plating liquid is evenly ejected from the opposed ejection ports 6 toward the sheet surface of the sheet-shaped strip product W.

The upper end of the inclined ejection pipe 5 is fixedly connected to a branch supply pipe 8 via a bent pipe 7. The branch supply pipe 8 is provided along the transfer direction of the jig 2 with the jig 2 interposed therebetween, and is fixed to a stand (not shown). The lower end of the inclined jet pipe 5 is closed with a blind cap 9. The blind cap 9 is fitted in a fixing recess 10 fixed to the bottom of the plating tank 3. In this manner, both ends of the inclined jet pipe 5 are fixed and fixedly installed in the plating tank 3. Note that the inclined jet pipe 5 and the bent pipe placed in the plating liquid A are formed of a plastic that is a non-conductive material.

In FIG. 2, reference numeral 11 denotes a circulation pump, and a suction pipe 12 is connected to a suction side of the circulation pump 11, and the other end of the suction pipe 12 is opened to a bottom side in the plating tank 3. A discharge pipe 13 is connected to the discharge side of the circulation pump 11, and the other part of the discharge pipe 13 is connected to the branch supply pipe 8. The plating liquid A in the plating tank 3 is forcibly flown in the direction of the arrow according to this circulation path, and the forcibly flowed plating liquid A is discharged from each outlet 6 of the inclined ejection pipe 5 through the branch supply pipe 8. It is gushing. A filter (not shown) is provided in the middle of the discharge pipe 13.

According to the present invention, the sheet-shaped strip product W whose upper part is sandwiched by the jig 2 and conveyed in the plating solution A is sandwiched by the jig 2 between the opposed inclined jet pipes 5. It is passed continuously from the upper part of the held product to the lower part of the unstable product, and Due to the jet pressure of the plating liquid which is uniformly jetted from each of the opposed jet ports 6 of the inclined jet pipe 5, it is guided so as to pass along the center position between the confronted inclined jet pipes 5. You.

Reference numeral 14 denotes a product upper guide member, and the product upper guide member 14 covers the product upper portion of the sheet-shaped strip product W which is conveyed horizontally and horizontally in the plating solution A in the plating tank 3. It guides continuously along the transport direction. The product upper guide member 14 is located near a lower portion of a product holding position of the jig 2 by the product holding portion 2A and above an arrangement position of an ejection port 6 formed at the uppermost portion of the inclined ejection pipe 5. The products W are arranged opposite to each other with a small gap between the upper sheet surfaces of the products W, and each of them is configured to extend along the conveying direction of the product W. Also, as shown in FIG. 3, the starting end of the product upper guide member 14 is located in front of the arrangement range of the inclined ejection pipe 5 with respect to the transport direction of the sheet-shaped strip product (indicated by an arrow F). Position. The starting end of the product upper guide member 14 is formed in a substantially V-shape to facilitate introduction of the product. The product upper guide member 14 is fixed to a stand (not shown). In addition, as shown in FIG. 3, the bent pipe 7 connected to the upper end of the inclined jet pipe 5 is fitted and fixed to a curved portion formed on the opposite side of the product upper guide member 14 from the guide side. ing. Therefore, the product W to be conveyed is first guided at the upper part of the product by the product upper guide member 14, and is guided at the upper part of the product by the product upper guide member 14. Will be guided.

The inclined jet pipe 5 may be formed by forming a jet port 6 in a plastic pipe (round pipe). In this embodiment, as shown in the drawing, the inclined jet pipe 5 is opposed to the pipe (round pipe). On the side, a plastic reinforcing member 15 with a convex section extending along the pipe direction of the pipe (round pipe) is fixed in an attached state, and a predetermined interval is provided between the reinforcing members 15. A large number of long ejection holes 15A (shown in FIG. 4) are formed, and these ejection holes 15A are communicated with the inside of the pipe so that the ejection holes 15A are connected to the ejection holes 6A. It is constituted as. By forming the ejection port 6 with a long ejection hole 15A, the straightness of the jetted liquid can be improved. Said The facing gap of the reinforcing member 15 may be formed to be the same as or slightly wider than the facing gap of the product upper guide member 14 so that the product guide function is provided together with the reinforcing function. The shield plate 16 is provided to shield the lower end of the product where current is concentrated and to make the plating thickness uniform. The shield plate 16 holds the lower end of the sheet-shaped strip product W, which is conveyed horizontally and horizontally in the plating solution A in the plating tank 3, in both directions along the conveying direction of the product W. The sheet-shaped strip products W to be conveyed are opposed to each other with the lower ends of the products being interposed therebetween. The pair of shield plates 16 provided so as to be separated from each other so as to allow the product W to pass between the pair of shield plates 16 in the vertical direction. Further, as shown by an arrow G in FIGS. 1 and 3, the shield plate 16 has the inclined jet pipe 5 fixedly installed in the plating tank 3 as a guide axis. The inclined jet pipe 5 is configured to move up and down corresponding to the height position of the lower end of the product from the lower part of the pipe to the substantially middle part of the pipe while maintaining the horizontal state along the inclined direction of the jet pipe 5. ing. Since the pair of shield plates 16 are separately configured, the sheet-shaped strip products W pass vertically between the shield plates 16 that are moved up and down as can be understood from FIG. it can.

The shield plate 16 is fixed via a fixing plate 18 to a product side of a mounting plate 17 provided on the outside of the opposed inclined jet pipe 5, and a lower end of the product W in which the product W is shielded. It is installed close to the part. The shield plate 16 is separated from the reinforcing member 15 projecting from the inclined jet pipe 5 at a predetermined interval so as not to collide with the reinforcing member 15. It is fixed to the mounting plate 17 via 18. The shield plate 16, the mounting plate 17, and the fixing plate 18 constitute a slide structure 19 having a large number of partitioning portions that are opened in the vertical direction. Each of the inclined jet pipes 5 penetrates through each section of the slide structure 19, and the slide structure 19 is tilted in a direction in which the inclined jet pipe 5 is fixed at a fixed position (FIG. 1). (Indicated by arrow G in Fig. 3). The slide structure 19 includes the tilt A slide member 20 that is slid along the inclined jet pipe 5 with the inclined jet pipe 5 as a guide axis is attached. The slide structure 19 including the slide member 20 is formed of a non-conductive material such as plastic. The mounting plate 17 is divided at appropriate intervals in the longitudinal direction of the plating tank 3 and is configured to be able to move up and down for each of the divided mounting plates 17. Therefore, the shield plate 16 attached to the attachment plate 17 can be moved up and down in the same horizontally long plating processing tank 3 so as to correspond to a product group having a different vertical dimension. Reference numeral 21 denotes a guide rod made of plastic, which guides the slide structure 19 so as to be slidable, and which is attached to the outside of the attachment plate 17. It is arranged in contact with the outer surface of the plate 17 and is fixedly provided upright on the bottom wall side in the tank 3.

In this embodiment, the shield plate 16 (slide structure 19) is lifted and lowered while keeping a horizontal state along the inclined direction of the inclined ejection pipe 5. Is used. The shield plate 16 (specifically, the mounting plate 17 of the slide structure 19), which is configured to move up and down along the inclination direction of the inclined ejection pipe 5, By being connected to the lower arm 24 A of the L-shaped lever arm 24 fixed to the pivot 23 provided on the base 22 installed on the upper part by a plastic hanging connecting rod 25 It is suspended and held at multiple locations. As shown in FIG. 2, a lever arm 26 pivoted together with the lower arm 24 A is fixed to the other end of the pivot 23, and the lever arm 26 is opposed to the lever arm 26. The other shield plate 16 (specifically, the mounting plate 17 of the slide structure 19) is connected by a suspended connecting rod 25. The plurality of L-shaped lever arms 24 are connected to the other upper arm 24 B of the L-shaped lever arm 24 by a rotating shaft (motor shaft) of a motor 27 supported on the frame 22. ) The L-shaped lever arm directly connected to the crank arm 29 fixed to 28 by a first connecting rod 30 or directly connected to the crank arm 29 It is indirectly connected to 24 by a second connecting rod 31. In this manner, the crank arm 29 is formed by a circular arc indicated by a dashed line in FIG. When the range is pivoted, the lower arms 24 A (also the lever arms 26) of the plurality of L-shaped lever arms 24 synchronize with the arc range shown by the dashed line in FIG. The shield plate 16 (slide structure 19) is pivoted, and moves up and down along a range between a descending position indicated by a solid line and an ascending position indicated by a dashed line along the inclination direction of the inclined jet pipe 5. Will be moved. The elevating movement by the elevating means described above is performed independently for each of the mounting plates 17 (slide structures 19) divided at appropriate intervals in the length direction of the plating tank 3. It is moved up and down according to the vertical size of. Industrial applicability

An in-liquid transport type plating apparatus provided with a plating liquid ejection pipe according to the present invention is a submerged transport type plating apparatus which performs plating processing while a sheet-shaped strip product is transported in a plating liquid. A product guide function for preventing the sheet-shaped strip product conveyed in the plating liquid from swaying, and a jetting liquid jetting the plating liquid toward the sheet-shaped strip product transported in the plating liquid; The present invention provides a plating processing apparatus provided with the apparatus, and particularly has the following excellent effects.

First, according to the present invention, it is possible to remove the product guide member (lower side guide member) of the prior art which was disposed in front of the ejection port of the plating liquid ejection pipe and was in the way. Ejection obstruction can be eliminated and uniform jetting of liquid can be performed. In addition, the obstructive product guide member (lower side guide member) described in the related art can be removed, so that the inclined ejection pipes, that is, each ejection port formed in the ejection pipe can be used as a sheet of the sheet-like product. Since it can be arranged at an optimal position close to the surface, the efficiency of jetting of the plating liquid can be increased, and the plating efficiency can be improved. As described above, since the plating liquid can be ejected near the sheet surface of the product, the pump capacity can be reduced and power saving can be achieved. Further, by providing a guide function to the inclined ejection pipe, the entire sheet surface of the product can be guided without leaving a wide non-guided area unlike the conventional apparatus. In addition, the sheet-shaped strip product passed between the inclined ejection pipes is ejected from the ejection port of the inclined ejection pipe. It is guided by the jet pressure of the plating liquid, and is guided in a state of non-contact with solid objects, so there is no risk of damaging the product sheet surface.

Further, according to the present invention, in addition to the above-described effects, the guide function by jetting out the plating liquid can be further improved.

According to the present invention, in addition to the effects described above, the conveyed sheet-shaped strip product W is first guided at the upper part of the product by the product upper guide member 14, and the upper part of the product is guided by the product upper guide member 14. Almost the entire surface of the seat is guided by the inclined jet pipe 5 while being guided, so that the product guiding function can be further improved. Further, according to the present invention, the pair of shield plates is separated so that the product can pass vertically between the pair of shield plates, so that the product can pass vertically between the pair of shield plates, and the height of the product can be increased. Even when the size is changed, product efficiency can be increased by minimizing product dummies. That is, as described in the prior art, when the size of a sheet-shaped strip product that is continuously conveyed sideways with a small gap on the side is changed, the size of the product to be changed is changed. The height of the shield plate is raised and lowered according to the height of the product that has been changed when the dummy product passes. For example, when changing from a larger product to a smaller product, the larger product will be followed by a larger product die. From this position, a pair of shield plates can be raised to the position where the next smaller product is raised. Therefore, the required product dummies can be minimized and the production efficiency can be increased. In addition, the shield plate can be attached close to the lower end of the product, so that the shielding effect can be improved. '

Claims

The scope of the claims

1. The upper part of a sheet-like strip product (W) such as a printed circuit board that is processed by the product holding part (2A) of a jig (2) supported laterally by the tool (1). The sheet-shaped strip product held in the suspended state and held in the suspended state by the jig is horizontally transported horizontally in the plating liquid (A) in the plating tank (3) along the bar. A rod-shaped plating liquid jet pipe (5) facing the sheet-like strip product conveyed horizontally and horizontally in the plating liquid in the plating tank; A large number of these liquid jetting pipes are provided fixedly in the plating processing tank, and a large number of these jetting liquid jetting pipes are provided at regular intervals along the conveyance path of the sheet-shaped strip product. Facing the sheet surface of a sheet-shaped strip product A plurality of ejection ports (6), each of which is provided with a plating liquid ejecting device configured to uniformly eject the plating liquid from the ejection ports toward the sheet surface of the sheet-shaped strip product. At

The plating liquid ejection pipe (5) is configured as an inclined ejection pipe (5) that is arranged with the upper pipe side inclined backward and the lower pipe section inclined forward in the direction of transport of the sheet-like product. At the same time, the mounting interval of the plurality of inclined jet pipes (5) provided at a constant interval along the conveyance path of the sheet-shaped strip product is adjusted with respect to the sheet surface of the sheet-shaped strip product to be conveyed. An in-liquid transport type plating apparatus provided with a plating liquid discharging pipe, wherein at least a plurality of the inclined discharging pipes are provided at intervals facing each other.

2. The respective ejection ports (6) of the inclined ejection pipe (5) opposed to each other with the sheet-shaped strip product (W) interposed therebetween are formed so as to face each other, and each opposed ejection port (6). 2. A submerged plating process provided with a plating solution jetting pipe according to claim 1, wherein the plating solution is uniformly jetted from the sheet-like strip product toward the sheet surface of the strip product. apparatus.

3. Product upper guide that guides the upper part of the sheet-shaped strip product (W), which is transported horizontally and horizontally in the plating liquid in the plating tank (3), continuously in the transport direction. A member (14) is provided, and the product upper guide member is provided with the jig. Due to the product holding portion (2A) of (2), the product is located at a position higher than the disposition position of the ejection port (6) formed at the uppermost part of the inclined ejection pipe (5) near the lower portion of the product holding position. The products are arranged facing each other with a small gap with the upper sheet surface therebetween, and are configured to extend in the direction in which the products are transported, and the direction in which the strip-shaped products are transported. 3. The liquid ejecting pipe according to claim 1 or 2, wherein a starting end of the product upper guide member is located in front of an arrangement range of the inclined ejecting pipe. Submerged transfer processing device.

4. A shield plate that shields the lower end of the sheet-shaped strip product (W), which is conveyed horizontally and horizontally in the plating liquid in the plating tank (3), from both sides along the conveying direction. 16), wherein the shield plates are respectively provided inside the opposed inclined jet pipes (5), and are attached to the lower ends of the products shielded by the shield plates, respectively. Further, a pair of the shield plates for shielding the lower end portion of the product from both sides are provided separately so that the product can pass in a vertical direction between the pair of the shield plates. The inclined jet pipe fixedly installed in the plating tank is used as a guide axis to maintain the horizontal state along the inclined direction of the inclined jet pipe and to be positioned at the height position of the lower end of the product. Configuration was that the plating liquid discharge pipe submerged conveying type plating apparatus provided with the claims paragraph 1 or 2, wherein as the lifting movement by.