JP2943070B1 - Electroplating system that enables uniform plating - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To provide an electric current equal to that of another sheet surface on both side edges of a sheet-shaped strip product when current is excessively concentrated when electroplating while transporting the sheet-shaped strip product into a plating solution. A uniform plating process is enabled by being distributed. SOLUTION: An engaging claw 25 attached to a jig 2 is engaged with an engaging tooth of a belt 30 for a plating section, and the jig 2 is driven by transporting the belt 30 for a plating section. The sheet-shaped strip product W sandwiched in a suspended state is transferred to the rail track 1 for the plating section while maintaining a predetermined narrow gap width in which the current is not excessively concentrated at the side end of the product W by keeping the horizontal width of the product W. The electroplating was carried out while being conveyed in a state of being conveyed in a horizontal direction in series.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet-like strip product such as a printed circuit board held in a suspended state at an upper part of a product, and a power supply is supplied to the upper part of the product. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electroplating system for carrying out electroplating, and more particularly to an electroplating system capable of performing uniform plating on a sheet surface.

[0002]

2. Description of the Related Art As a plating system for sheet-shaped strip products such as printed circuit boards, a sheet-shaped strip product is sandwiched in a suspended state at an upper part of a product, and power is supplied to the upper part of the product so that a processing solution in a plating tank is horizontally directed. There is an electroplating processing system for performing electroplating by transporting in a serial transport state. However, the current is excessively concentrated on both side edges of the sheet-shaped strip product to be plated, and the plating film on the current-concentrated sheet portion becomes thicker than the other sheet surfaces, so that a uniform plating process on the sheet surface cannot be performed. Also, there is a problem that a burning phenomenon occurs in the current concentrated portion.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to suspend the upper part of a strip-shaped product such as a printed circuit board, which is plated by a jig supported movably on a rail track functioning as a cathode bar. And a plating step of performing electroplating while transporting the product in a processing state in a horizontal and serial manner in the processing solution in the plating tank while supplying power from the cathode bar to the upper part of the product via a jig. In the electroplating processing system, in particular, the current is excessively concentrated on both side edges of the sheet-shaped strip product so that the current is evenly distributed to the other sheet surface, so that the sheet-shaped strip product has a uniform current. An attempt is being made to provide an electroplating processing system that enables uniform plating processing that enables a smooth plating process and prevents a burning phenomenon. It is.

Another object of the present invention is to hold the upper part of a strip-shaped product such as a printed circuit board to be plated by a jig movably supported on a rail track functioning as a cathode bar in a suspended state. A plating step of electroplating while transporting a plurality of products in a processing state in a horizontal and serial manner in a processing solution in a plating tank while supplying power from the cathode bar to the upper part of the product via a jig; and A jig return step having a rail track disposed in parallel with the rail track provided in the processing step, and a rail track aligned with the rail track of the plating step or the jig return step. A pretreatment step interposed between a starting end side of the plating step and an end side of the jig returning step; and any one of the plating step or the jig returning step. A post-processing step having a rail track aligned with the rail track and being interposed between the end side of the plating process and the start end side of the jig returning step, and both ends of a pair of rail tracks arranged in parallel; A transfer device provided with transfer rails that can reciprocate between both ends of a rail track separated so as to be alternatively aligned, the rail track in the plating step and the rail track in the jig return step In the circulation type electroplating processing system configured to convey the jig moving in the moving direction and the front-rear direction of the jig with respect to the moving direction in opposite directions, a uniform plating process is enabled as described above. In addition to solving the problem, fluctuations in the number of jigs used when plating sheet-shaped strip products having different widths in the same plating processing line, that is, production of small width dimensions If you try to plate a product with a large width on a plating line that matches the size of the jig, you will have excess jigs, but you can stock the excess jigs in the jig return process without removing this extra jig from the line. By doing so.

[0005]

In order to achieve the above object, an electroplating processing system according to the present invention comprises a jig movably supported on a rail track (1) for a plating section functioning as a cathode bar. The upper part of a sheet-shaped strip product (W) such as a printed circuit board to be plated by (2) is sandwiched in a suspended state, and plating is performed while supplying power from the plating part rail track via a jig to the upper part of the product. In the electroplating processing system having a plating process (A) for performing electroplating while transporting a plurality of products in a processing liquid in a tank (3) in a laterally serially transported state, the jig (2) is used. The dowel (25) is connected to the engaging portion (2) of the engaging claw.
6) The upper end of the engaging claw is pivotally supported (27) on the jig so that the lower end that functions as 6) can pivot in the conveying direction of the jig. An endless toothed belt for a plating section (30) driven at a constant speed and provided with teeth (32) at equal intervals.
Disposing a conveying track portion (33) of the endless belt with a tooth for a plating section on a plating tank in the plating step (A) along the rail section for a plating section (1); With respect to the toothed belt for the plating section in the conveying track section, the horizontal spacing of the sheet-shaped strip products sandwiched by the jig from the pre-processing step (C) to the plating step is set to The engaging claw (25) attached to the jig which is sequentially and intermittently fed at a predetermined feed pitch so as to have a predetermined narrow gap width in which current is not excessively concentrated at the side end pivots. The engaging portion (26) is placed on the conveying track portion (33) of the plating section toothed belt (30) such that the engaging portion (26) is at an inclined position retracted with respect to the upper end pivot portion of the engaging claw, and the plating is performed. The engagement teeth (32) of the toothed belt for the processing unit; The product held between the jigs in a suspended state by the conveyance drive of the toothed belt for the plating section engaged with the engaging claw is adjusted so that the product is horizontally spaced. The electroplating is carried out while being transported in a laterally serially transported state along the plating section rail track (1) while maintaining a predetermined narrow gap width in which current is not excessively concentrated at the side end of the wire. did.

In order to achieve the above object, an electroplating system according to the present invention comprises a jig (2) movably supported on a rail for a plating section (1) functioning as a cathode bar. A plating tank (3) which holds a product upper part of a sheet-shaped strip product (W) such as a printed board to be plated in a suspended state, and supplies power to the product upper part from a rail track for the plating part via a jig. Plating process (A) in which a plurality of products are electroplated while being transported in a transport state in a horizontal and serial manner in a processing solution in the inside
A jig return step (B) having a jig return rail track (10) disposed in parallel with the plating section rail track (1) provided in the plating step; The rail track (1) for the pre-processing unit, which is aligned with the rail track of either the plating process or the jig returning process.
A pre-treatment step (C) having 1) interposed between a start end side of the plating step and an end side of the jig return step;
The rail track (1) for the post-processing unit, which is aligned with the rail track of either the plating step or the jig returning step.
(2) a post-processing step (D) interposed between the end side of the plating step and the start side of the jig returning step; and alternatively, both ends of a pair of rail tracks arranged in parallel. Transfer device (4) provided with a transfer rail (41) that can reciprocate between both ends of a rail track separated so as to be aligned with
0), and the movement direction and movement of the jig (2) for moving the rail track (1) for the plating section in the plating step and the rail track (10) for the jig return section in the jig returning step. In the circulation type electroplating system configured to convey the jig in the front-rear direction with respect to the direction, respectively, the engaging claw (25) is attached to the jig (2) and the engaging portion of the engaging claw is engaged. The upper end of the engaging claw is pivotally supported (27) on the jig so that the lower end functioning as (26) can pivot in the conveying direction of the jig. The toothed belt (30) for the endless plating section is driven at a constant speed with the dentures (32) provided at equal intervals. The plating tank (3 It is disposed along the rail section (1) for the plating section and the toothed belt (30) for the plating section in the transport track section (33) is subjected to a pretreatment step to a plating step. The horizontal spacing of the sheet-shaped strip products sandwiched between the jigs in a suspended state is intermittently sequentially determined at a predetermined feed pitch so as to have a predetermined narrow gap width in which current is not excessively concentrated at the side end of the product. The plating is performed so that the pivoting engaging portion (26) of the engaging claw (25) attached to the jig sent thereto is at an inclined position retracted with respect to the upper end pivot portion of the engaging claw. It is configured such that it is placed on the conveying orbit portion of the toothed belt for processing part (30) and is engaged with the engaging teeth (32) of the toothed belt for plating part, and the engaging claw (25) For the conveyance drive of the engaged toothed belt (30) for the plating section Thus, the product (W) sandwiched between the jigs (2) is suspended while maintaining a predetermined narrow gap width such that current is not excessively concentrated on side edges of the product. Electroplating is carried out while being conveyed in a laterally serially conveyed state along the plating section rail track (1), and a plurality of engaging teeth (32) are used in the jig returning step (B). The endless jig return section toothed belt (31) provided at regular intervals is provided with the endless jig return section toothed belt conveying track section (33) in the jig return step. The jig-return portion toothed belt (31) which is disposed along the tool-return portion rail track (10) and is located on the transfer track portion.
The engaging claw (26) of the engaging claw (25) attached to the jig (2) sequentially sent from the post-processing step (A) side is moved to the engaging claw. The jig return portion toothed belt (31) is placed on the conveying track of the jig return portion toothed belt (31) such that the engagement tooth (32) ), And the jig is moved along the jig return rail track (10) by the conveyance drive of the jig return section toothed belt engaged with the engagement claw. To the pre-processing step side, and the engaging portion (2) of the engaging claw (25)
6) forming a feed-side engaging portion (26a) having one engaging portion at an acute angle with respect to the transport direction, and forming a returning-side engaging portion (26b) having an obtuse-angle engaging portion at the other. Then, when the plating process (A) is carried, the feed side engaging portion (26a) will be deeply engaged with the engaging teeth (32) of the toothed belt (30) for the plating portion. When the jig return step (B) is performed in which the front-back direction of the jig with respect to the moving direction is opposite to the plating step (A), the toothed belt for the jig return section is transported. (31) engagement teeth (3
The return side engaging portion (26b) is configured to be loosely engaged with 2), and the jig is restrained by an externally applied stopping force to the jig when the jig is returned in the jig returning step. The engagement between the engagement teeth (32) of the toothed belt (31) for the tool return portion and the engagement portion (26b) of the engagement claw (25) loosely engaged is released. The jig released from engagement with the jig return portion toothed belt can be stocked after the stop position.

Further, a plurality of the engaging claws (25) are attached to the jig (2) at predetermined intervals in the direction of conveyance of the jig, and the plurality of engaging claws (25) are attached. The interval is relatively set with respect to the formation interval of each engagement tooth (32) formed at equal intervals on the toothed belt (30) for the plating section and the toothed belt (31) for the jig return section. It was constructed by shifting.

[0008]

Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic front view of the electroplating processing system of the present invention showing a pre-processing step, a plating processing step, and a post-processing step. FIG. 2 is a schematic front view of the electroplating processing system of the present invention showing a jig returning step. 3 is a schematic plan view showing the entire electroplating processing system of the present invention, FIG. 4 is an enlarged front view showing the relationship between a toothed belt and a jig disposed in the plating step, and FIG. 5 is a jig returning step. FIG. 6 is an enlarged front view showing the relationship between the arranged toothed belt and the jig, FIG. 6 is an enlarged front view showing the stock state of the jig in the jig returning process, and FIG. 7 is a diagram showing the relationship between the toothed belt and the jig. FIG. 8 is an enlarged front view partially showing an engagement relationship between a toothed belt and an engagement claw disposed in a plating process, and FIG.
FIG. 10 is an enlarged front view partially showing an engagement relationship between the toothed belt provided in the jig returning step and the engaging claw, and FIG. 10 is a view showing the toothed belt provided in the jig returning step and the stock state. FIG. 4 is an enlarged front view partially showing an engagement relationship between a certain jig and an engagement claw. The electroplating processing system according to the present invention includes a sheet-like strip product W such as a printed circuit board, which is plated by a jig 2 movably supported on a rail track 1 for a plating section functioning as a cathode bar. A plurality of products are conveyed in a processing state in which a plurality of products are laterally arranged in series in a processing solution in a plating tank 3 while power is supplied to the upper portion of the products from the plating section rail track 1 via a jig 2 while being held in a suspended state. Plating step A for performing electroplating while performing the plating, and the rail track 1 for the plating section provided in the plating step A
Rail track 1 for the jig return section arranged in parallel with and separated from
A jig return step B having a zero and a rail track 11 for a pre-processing unit which is aligned with the rail track of either the plating step A or the jig return step B. A pre-processing step C interposed between the terminal end side of the jig returning step B and a rail track 12 for a post-processing part which is aligned with the rail track of either the plating step A or the jig returning step B. The post-processing step D interposed between the end side of the plating step A and the start side of the jig returning step B is selectively aligned with both ends of a pair of rail tracks arranged in parallel. And a transfer device 40 provided with transfer rails 41 capable of reciprocating between both ends of the rail track separated from each other so that the rail track 1 for the plating section in the plating step A and the jig returning step are provided. B jig return rail It is obtained by constituting the front and rear direction of the jig 2 and the moving direction of the jig 2 to move the road 10 with respect to the moving direction of the circulation so as to transport the reverse, respectively.

FIG. 1 to FIG. 3 schematically show the electroplating system, and each rail track (rail track 11 for a pre-processing section, rail track 1 for a plating section, rail track 12 for a post-processing section). Pretreatment step C, plating treatment step A, and post treatment step D, which can be performed in series.
And each of the rail tracks (the rail track 11 for the pre-processing section, the rail track 1 for the plating section, and the rail track 1 for the post-processing section).
The jig return process B having the jig return rail track 10 disposed in parallel with the base member 2) is separated from both ends of the pair of rail tracks arranged in parallel. A transfer device 40 provided with transfer rails 41 that can reciprocate between both ends of the rail track separated as described above, and the rail track 1 for the plating section in the plating step A and the jig returning step B The circulation type is configured so that the moving direction of the jig 2 moving on the jig return section rail track 10 and the front and rear direction of the jig 2 with respect to the moving direction are respectively reversed. The sheet-shaped strip product W pre-processed in the pre-processing step C shown on the right side of FIG. 1 is sent to the plating step A provided on the left side of the pre-processing step C, and the plating is performed in the plating step A. The product W is sent to a post-processing step D provided on the left side of the plating step A.
The product W after post-processing is sent to the jig return process B via the transfer device 40, the product W plated in the jig return process B is removed from the jig, and the product to be plated is mounted. The jig 2 is circulated by sending the jig 2 to the pre-processing step C via the transfer device 40. 1 and 3, reference numeral 4 denotes a pretreatment tank, reference numeral 3 denotes a plating tank, and reference numeral 5 denotes a post-treatment tank. The rail track 11 for the pre-processing section disposed above the pre-treatment tank 4 is used to transfer the product W suspended from the jig 2 supported on the rail track 11 for the pre-processing section so as to be able to move laterally. It is configured to move up and down between a lowering position where the product W is immersed in the pretreatment liquid in the pretreatment tank 4 and an uppering position where the product W is transferred to the next process. Further, the rail track 12 for the post-processing section disposed above the post-processing tank 5 also has the product W suspended from the jig 2 supported on the rail track 12 for the post-processing section so as to be freely movable. Is moved up and down between a lowering position where the product W is immersed in the post-processing liquid in the post-processing tank 5 and a raising position where the product W is transferred to the next process. The jig 2 movably supported by the rail track 11 for the pre-processing section and the rail track 12 for the post-processing section includes the rail tracks (the rail track 11 for the pre-processing section and the rail track 12 for the post-processing section). The jig 2 at the ascending position or the descending position is engaged with the engaging piece 7 protruding from the upper end of the jig 2 by the pushing body 6 which is moved up and down together with the rail track (for the pre-processing unit). It is configured to intermittently transfer to the next process along the rail track 11 and the post-processing section rail track 12). Pretreatment step C
The jig 2 supporting the product W pre-processed in the above-described manner is provided with the end portion of the rail track 11 for the pre-processing portion at the lowered position shown by the two-dot chain line in FIG. At the aligned position where the starting end of the track 1 is aligned, the engaging piece 7 of the jig 2 is engaged and pushed by the pushing body 6 and is supported by the starting end of the plating section rail 1. At the same time, it is sent to a position where it is engaged with a toothed belt for a plating section described later. Further, the jig 2 which has been subjected to the plating process in the plating process A includes the starting end of the post-processing rail track 12 at the lowered position indicated by the two-dot chain line in FIG. The engaging piece 7 of the jig 2 is engaged with the pushing body 6 at the aligned position where the terminal end of the rail track 1 is aligned, and is pushed to be sent to the rail track 12 for the post-processing section. Jig 2 supporting product W that has completed post-processing step D
Is transferred to the transfer rail 41 of the transfer device 40 by pushing the engagement piece 7 of the jig 2 by the pressing body 6, and as shown in FIGS.
The jig 2 which has been sent to the jig return section rail track 10 of the jig return step B through the jig return step B and has passed the jig return step B
Is sent to the pre-processing step C via the transfer device 40 provided between the end of the jig returning section rail track 10 in the jig returning step B and the starting end of the pre-processing step C. As shown in FIG. 3, the transfer device 40 includes a pair of rail tracks (a pre-processing section rail track 11, a plating processing section rail track 1, and a post-processing section rail track 12) arranged in parallel.
, Which can be reciprocated as shown by a solid line and an alternate long and short dash line between both ends of the rail track separated so as to be selectively aligned with both ends of the rail track formed of the jig return rail track 10). The rail 41 and the rail track aligned with the transfer rail 41 are constituted by a pushing body 6 which pushes the jig 2 by engaging the engaging piece 7 so as to change over each other. The transfer rail 41 of the transfer device 40 interposed between the end side of the post-processing step D and the start end side of the jig returning step B is a post-processing section of the post-processing step D which is separately provided. Is reciprocated between the positions indicated by the solid line and the dashed line so that the end of the rail track 12 for the jig and the starting end of the rail track 10 for the jig return section in the jig returning step B are alternatively aligned. It is configured as follows. Further, the transfer rail 41 of the transfer device 40 disposed between the end side of the jig return step B and the start end side of the pre-processing step C is separated from the jig return step B Between the position indicated by the dashed line and the position indicated by the solid line so as to be selectively aligned with the end of the rail track 10 for the jig return section and the start end of the rail track 11 for the preprocessing section C in the preprocessing step C. It is configured to reciprocate. In FIG. 3, reference numeral 42 denotes a support rail for supporting the transfer rail 41 so that the transfer rail 41 can reciprocate. The transfer rail 41 supported by the support rail 42 is connected to a motor 44 via a belt 43 connected to the transfer rail 41.
Is reciprocated between both ends of the rail track separated so as to be selectively aligned with both ends of the pair of rail tracks. As described above, this circulation type plating system includes a rail track including the plating section rail track 1 of the plating step A and a jig returning section B of the jig returning step B, which are disposed separately and in parallel. Via a transfer device 40 having a transfer rail 41 which is reciprocated between both ends of a rail track separated from each other so as to be selectively aligned with both ends of a pair of rail tracks composed of the rail tracks 10 for use. The jig 2 is configured to circulate and move the jig 2 so as to move the rail track 1 for the plating section in the plating step A and the rail track 10 for the jig returning section in the jig returning step B.
And the front and rear directions of the jig 2 with respect to the moving direction of the jig 2 are transported in opposite directions.

Next, a transport means for moving the jig 2 along the plating section rail track 1 in the plating step A and the jig returning section rail track 10 in the jig returning step B will be described with reference to FIG. This will be described with reference to FIGS. The jig 2
As described above, each of the rail tracks (1, 10, 1)
1, 12), and is configured to hold the upper part of the product W in a suspended state so that the sheet-shaped strip product W such as a printed circuit board to be plated is transported in a lateral orientation. , Each of the rail tracks (1, 10, 1)
1, 12), a sliding portion 21 erected in a laterally movable manner, and a clamping portion 22 (in FIG. 7, which detachably clamps an upper portion of the product W in a suspended state so as to convey the product W in a lateral orientation. (Not shown), the engagement piece 7 to be engaged with the pushing body 6 is provided. The jig 2 includes the jig 2
A plurality of engagement claws 25 attached at a predetermined interval in the conveyance direction of the jig 2 can be pivotally moved in the conveyance direction of the jig 2 at the lower end portions functioning as the engagement portions 26 of the engagement claws 25. The upper and lower ends of the engaging claws 25 are pivotally supported on the jig 27 so as to be mounted. That is, when the engaging claw 25 is in the free state, it is in a vertically hung state like the engaging claw 25 shown on the right side of FIG. 4 or the left side of FIG. In the plating step A and the jig returning step B, endless belts of the same type are provided. The toothed belt 30 for a plating part disposed in the plating step A is driven at a constant speed with a plurality of engaging teeth 32 provided at equal intervals, and is used for the endless plating part. Toothed belt 30
Is disposed on the plating tank 3 in the plating step A along the rail track 1 for the plating section. On the other hand, from the pre-processing step C to the plating step A, the width of the sheet-shaped strip product W held in a suspended state by the jig 2 is set to a predetermined narrow width so that current is not excessively concentrated on the side end of the product W. Pivoting engaging portions 26 of the plurality of engaging claws 25 attached to the jig 2 sequentially and intermittently fed at a predetermined feed pitch so as to have a gap width.
The toothed belt 30 for the plating portion is set so that the belt 30 is inclined with respect to the upper end pivot 27 of the engaging claw 25.
Of the plurality of engaging claws 25 placed on the conveying orbital portion 33.
Is configured to be engaged with the engagement teeth 32 of the toothed belt 30 for the plating part, and the jig is driven by the driving of the toothed belt 30 for the plating part engaged with the engagement claws 25. The product track W is held in a suspended state by the plating track 2 while maintaining a predetermined narrow gap width in which current is not excessively concentrated at side edges of the product W. Is electroplated while being conveyed in a state of being conveyed in a horizontal direction along the line. Further, the toothed belt 31 for the jig return portion provided in the jig return step B has a plurality of engaging teeth 32 provided at equal intervals, and the endless belt with the tooth for the jig return portion is provided. 31 is disposed along the jig return section rail track 10 provided in the jig return step B, and the jig return section toothed belt 31 in the transfer track section 33 is provided.
On the other hand, the engaging portion 26 of the engaging claw 25 pivotally attached to the jig 2 sequentially sent from the post-processing step D is attached to the upper end pivot support portion 27 of the engaging claw 25. The jig return portion toothed belt 31 is placed on the conveying track portion 33 so as to be in the inclined position retracted, and any one of the plurality of engaging claws 25 placed on the conveying track portion 33 is engaged. The dowel 25 is engaged with the engaging teeth 32 of the toothed belt 31 for the jig return portion.
The jig 2 is moved along the jig return rail track 10 by the driving of the jig return portion toothed belt 31 engaged with the engagement claw 25. It is configured to be conveyed to the pretreatment step C side.

The engaging claw 25 engaged with the engaging teeth 32 of the toothed belts 30 and 31 is configured such that one of the engaging portions 26 of the engaging claw 25 has an acute angle with respect to the conveying direction. The feeding side engaging portion 26a having the engaging portion is formed, and the returning side engaging portion 26b forming the obtuse angle engaging portion is formed on the other side. Moreover,
In the plating step A, the inclination of the engaging claws 25 with respect to the engaging teeth 32 of the toothed belts 30 and 31 is tight, and the entering angle of the engaging portion 26 of the engaging claws 25 with respect to the engaging teeth 32 is adjusted. On the other hand, in the jig returning step B, the engaging portion 26 is loosened so that the angle of engagement of the engaging portion 26 of the engaging claw 25 with the engaging tooth 31 is reduced. Thus, FIG.
As shown in FIG. 9, the feeding side engaging portion 26a is configured to be deeply engaged with the engaging teeth 31 of the toothed belt 30 for the plating portion when the plating process step A is carried.
As shown in FIG. 10, when the jig 2 is conveyed in the jig return step B in which the front and rear direction of the jig 2 with respect to the moving direction is opposite to the plating step A, the toothed belt for the jig return portion is used. The return-side engaging portion 26 with respect to the engaging teeth 32
b is loosely engaged, and the jig returning step B
The return side engagement of the engagement claw 25 loosely engaged with the engagement teeth 32 of the jig return portion toothed belt 31 by the external stopping force applied to the jig 2 when the jig 2 is conveyed. Part 26
b is released. And
When the jig 2 is conveyed in the jig return step B, an external stopping force is applied to the jig 2 so that the engagement portion 26 of the engagement claw 25 is engaged like the engagement claw 25 shown by a dashed line in FIG. The jig 2 lifted and slipped with the engagement teeth 32 and disengaged from the jig return portion toothed belt 31 is shown in FIG.
And as shown in FIG. 6, it is configured so that stock can be performed after the stop position. Reference numeral 35 denotes a stopper for applying a stopping force to the jig 2.
And a position where the jig 2 is not locked.

A plurality of engaging claws 2 attached to the jig 2
The mounting interval of 5 is shifted relatively to the forming interval of the engaging teeth 32 formed at equal intervals on the toothed belts 30 and 31. That is, the mounting interval of the plurality of (four) engaging claws 25 is shifted with respect to the forming interval of each of the engaging teeth 32 formed at equal intervals, and any one of the plurality of (four) engaging claws is used. By engaging the engaging claws 25 with the engaging teeth 32 of the toothed belts 30 and 31, the engagement error of the engaging claws 25 with respect to the engaging teeth 32 is reduced. In the plating process A, the width of the sheet-like strip product W sandwiched between the jigs 2 in the horizontal direction is set to a predetermined narrow width such that a current is not excessively concentrated at a side end of the product W. The error in the horizontal spacing of the products W sandwiched in a suspended state by the jig 2 intermittently and sequentially fed at the feed pitch can be reduced, and thus the horizontal spacing of each product W is set to the side end of the product W. While maintaining a predetermined narrow gap width that is not excessively concentrated. Can be electroplated while transported by the transport state of being in series with sideways along said plating section for rail track 1.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The toothed belts 30, 31 are shown in FIGS.
As shown in FIG. 1, a double-sided toothed belt having engaging teeth 32 formed on both sides of the belt is employed, the inner engaging teeth are engaged with a sprocket 37, and the outer engaging teeth 32 are connected to the engaging claws 25.
To be engaged. The toothed belts 30 and 31 are made of high-strength polyurethane rubber capable of transmitting power accurately. In addition, each of the engaging teeth 3 formed at equal intervals on the toothed belts 30 and 31.
2 is formed at 10 mm, and the mounting interval of the plurality of (four) engaging claws 25 is shifted by 2.5 mm from the 10 mm forming interval so as to be 2.5 mm.
mm engagement error.

The number of the engagement claws 25 attached to the jig 2 may be one, but it is preferable that a plurality of the engagement claws 25 are attached, and moreover, the number of the engagement teeth 25 is equal to the interval between the engagement teeth 32 formed at equal intervals. By shifting the mounting intervals of the plurality of engaging claws 25 so as to be mounted, engagement errors can be reduced. In the embodiment shown in the drawing, four engaging claws 25 are attached as the plurality of engaging claws 25, but the present invention is not limited to this, and in theory, a larger number of engaging claws 25 are formed at equal intervals. Engagement teeth 32
If the installation interval is shifted with respect to the formation interval of
The engagement error can be further reduced.

In the embodiment shown in FIGS. 1 to 3, the pre-processing step C, the plating step A and the post-processing step D are serial lines, and this line and the jig returning step B are separated from each other. However, the present invention is not limited to this. For example, the plating process A may be a single line, and the post-processing process D and the jig returning process B may be separated from the line in parallel. It is also possible to arrange the pretreatment step C as a serial line.

[0016]

According to the present invention, the upper part of a sheet-shaped strip product such as a printed circuit board to be plated by a jig supported movably on a rail track functioning as a cathode bar is held in a suspended state. An electroplating process having an electroplating process for performing electroplating while transporting the product in a processing solution in a plating process tank in a laterally serial manner while supplying power from the cathode bar to the upper portion of the product via a jig. In, by allowing the horizontal spacing of each sheet-shaped strip product to be conveyed while maintaining a predetermined narrow gap width where current is not excessively concentrated at the side end of the product, with respect to both side edges of the sheet-shaped strip product Even so, a uniform current is distributed to the other sheet surface, so that a uniform plating process can be performed on the sheet-shaped strip product and the baking phenomenon can be prevented. It can be stopped.

Further, according to the present invention, the upper part of a sheet-shaped strip product such as a printed board to be plated by a jig movably supported on a rail track functioning as a cathode bar is suspended in a suspended state. A plating step of electroplating while transporting a plurality of products in a processing state in a horizontal and serial manner in a processing solution in a plating tank while supplying power from the cathode bar to the upper part of the product via a jig; and A jig return step having a rail track disposed in parallel with the rail track provided in the processing step, and a rail track aligned with the rail track of the plating step or the jig return step. A pretreatment step interposed between the starting end of the plating step and the end of the jig return step, and between the end of the plating step and the start of the jig return step. An intervening post-processing step and a transfer provided with a transfer rail capable of reciprocating between both ends of a rail track separated so as to be selectively aligned with both ends of a pair of rail tracks arranged in parallel. A circulation device having an apparatus and configured to convey the jig moving along the rail track in the plating process step and the jig return step in the rail track in the jig return step and the front and rear directions of the jig with respect to the moving direction in opposite directions. In the electroplating system of the type, it is possible to expect the same effect of enabling uniform plating as described above, and to use the treatment that occurs when plating sheet-shaped strip products having different widths in the same plating line. Jig surplus when trying to plate large width products on plating line for small width products , I I be allowed stock this excess jig fixture return stroke, excess jig can be plating a sheet strip product width dimension different from the same plating line without removing from the line.

[Brief description of the drawings]

FIG. 1 is a schematic front view of an electroplating processing system according to the present invention, showing a pretreatment step, a plating treatment step, and a post-treatment step.

FIG. 2 is a schematic front view of the electroplating processing system of the present invention showing a jig returning step.

FIG. 3 is a schematic plan view showing the entire electroplating processing system of the present invention.

FIG. 4 is an enlarged front view showing a relationship between a toothed belt and a jig provided in a plating process.

FIG. 5 is an enlarged front view showing the relationship between the toothed belt provided in the jig returning step and the jig.

FIG. 6 is an enlarged front view showing a stock state of the jig in a jig returning step.

FIG. 7 is a schematic side view showing a relationship between a toothed belt and a jig.

FIG. 8 is an enlarged front view partially showing an engagement relationship between a toothed belt and an engagement claw disposed in a plating process.

FIG. 9 is an enlarged front view partially showing an engagement relationship between a toothed belt and an engagement claw disposed in a jig returning step.

FIG. 10 is an enlarged front view partially showing an engagement relationship between a toothed belt provided in a jig returning step and an engagement claw of a jig in a stock state.

[Explanation of symbols]

 Reference Signs List A plating process B jig return process C pretreatment process D post-treatment process W sheet-like strip product 1 rail track for plating section 2 jig 3 plating tank 4 pretreatment tank 5 post-treatment tank 6 pusher 7 engagement Piece 10 rail track for jig return section 11 rail track for pre-processing section 12 rail track for post-processing section 21 sliding section 22 holding section 25 engaging claw 26 engaging section 26a feed-side engaging section 26b return-side engaging section 27 Shaft support part 30 Toothed belt for plating part 31 Toothed belt for jig return part 32 Engagement tooth 33 Conveyance track part 35 Stopper 37 Sprocket 40 Transfer device 41 Transfer rail 42 Support rail 43 Belt 44 Motor

Claims (4)

(57) [Claims] 1. A jig (2) movably supported laterally on a rail (1) for a plating section functioning as a cathode bar.
The product upper part of a sheet-shaped strip product (W) such as a printed circuit board to be plated is suspended in a suspended state, and the plating processing tank (3) is supplied with power from the plating part rail track via a jig. In the electroplating processing system having a plating process (A) for performing electroplating while transporting a plurality of products in the processing liquid in the processing solution in the horizontal direction in series, the engaging claw (2) is attached to the jig (2). 25), the upper end of the engaging claw is pivotally supported on the jig so that the lower end functioning as the engaging portion (26) of the engaging claw can pivot in the conveying direction of the jig. 27), and a plurality of engaging teeth (32) are provided at equal intervals and driven at an equal speed.
0), the conveying track portion (33) of the endless shaped toothed belt for the plating section is placed on the plating tank in the plating step (A) and the rail section (1) for the plating section.
And a sheet-like strip product sandwiched in a suspended state by the jig from the pre-processing step (C) to the plating step with respect to the toothed belt for the plating part in the conveyance track part. The engaging claw attached to the jig which is intermittently and sequentially fed at a predetermined feed pitch such that a current is not excessively concentrated on a side end portion of the product so that a current is not excessively concentrated on a side end of the product. The conveying track portion (33) of the toothed belt (30) for the plating section so that the pivoting engaging portion (26) of (25) is at an inclined position retracted with respect to the upper end pivot portion of the engaging claw. ) Is configured to be engaged with the engagement teeth (32) of the toothed belt for the plating part, and to drive the toothed belt for the plating part engaged with the engagement claws. The product held in a suspended state by the jig by the The electroplating is carried out in a laterally serially conveyed state along the plating section rail track (1) while maintaining a predetermined narrow gap width in which current is not excessively concentrated at the side end of the product. An electroplating processing system capable of performing uniform plating processing, characterized in that the electroplating processing system is configured to perform a uniform plating process. 2. A jig (2) movably supported laterally on a rail track (1) for a plating section functioning as a cathode bar.
The product upper part of a sheet-shaped strip product (W) such as a printed circuit board to be plated is suspended in a suspended state, and the plating processing tank (3) is supplied with power from the plating part rail track via a jig. A) a plating process in which a plurality of products are electroplated while being transported in a horizontal and serial transport state in a processing solution in (a); and a rail track (1) for the plating portion provided in the plating process. Jig return section rail track (1
(B) having a jig return step (B), and a rail track (11) for a pre-processing unit which is aligned with a rail track of either the plating step or the jig return step. Pretreatment step (C) interposed between the side of the jig and the end of the jig return step, and a rail for a post-processing section aligned with a rail track of the plating step or the jig return step A post-processing step (D) having a track (12) between the end side of the plating step and the start side of the jig returning step; and selecting both ends of a pair of rail tracks arranged in parallel. A transfer device (40) provided with a transfer rail (41) that can reciprocate between both ends of the rail track separated so as to be integrally aligned, and a rail track for a plating section in the plating step. (1) and the jig returning step A circulating electroplating system configured to convey the jig (2) moving on the jig return rail track (10) in a moving direction and a forward and backward direction of the jig with respect to the moving direction, respectively, The engaging claw (25) is attached to the jig (2), and the lower end of the engaging claw, which functions as an engaging portion (26) of the engaging claw, is pivotable in the conveying direction of the jig. The endless plating toothed belt for the plating section (which is driven at a constant speed with a plurality of engaging teeth (32) provided at equal intervals while being supported at the upper end by supporting the jig with the jig (27)). 3
0), the transfer track portion (33) of the toothless belt for the endless plating section is placed on the plating tank (3) in the plating step, and the rail section (1) for the plating section.
And a sheet sandwiched by the jig from the pre-processing step to the plating step with respect to the toothed belt (30) for the plating section in the conveying track section (33). The jig attached to the jig which is fed intermittently at a predetermined feed pitch so as to have a predetermined narrow gap width so that the current is not excessively concentrated at the side end of the strip-shaped product at a side end of the product. The plating-processed toothed belt (3) is configured such that the pivoting engagement portion (26) of the engagement claw (25) is at an inclined position retracted with respect to the upper end pivot portion of the engagement claw.
0) the plating process, which is placed on the conveying track portion and is engaged with the engagement teeth (32) of the toothed belt for the plating portion, and is engaged with the engagement claws (25). The current is not excessively concentrated on the side edges of the product (W) held in a suspended state by the jig (2) by the conveyance drive of the toothed belt (30). Electroplating is carried out while being transported in a laterally serially transported state along the plating section rail track (1) while maintaining a predetermined narrow gap width. Further, the jig returning step (B) ) Includes a plurality of engaging teeth (32).
The endless jig return section toothed belt (31) provided at regular intervals is provided with the endless jig return section toothed belt conveying track section (33) in the jig return step. The jig return section toothed belt (3) is disposed along the tool return section rail track (10), and is located on the transport track section.
1), the engaging claw (2) attached to the jig (2) sequentially sent from the post-processing step (A) side.
5) The pivoting engaging portion (26) is placed on the conveying orbit portion of the toothed belt (31) for the jig return portion so that the pivoting engaging portion (26) is at an inclined position retracted with respect to the upper end pivot portion of the engaging claw. It is configured to be put on and engaged with the engagement teeth (32) of the jig return portion toothed belt, and the conveyance drive of the jig return portion toothed belt engaged with the engagement claw is performed. The jig is configured to be conveyed to the pretreatment step side along the jig return rail rail (10), and the engaging portion (26) of the engaging claw (25) is moved in the conveying direction. A feed-side engaging portion (26a) having an engaging portion at one end having an acute angle
And a return side engaging portion (26b) having an obtuse angle engaging portion on the other side. When the plating process (A) is carried, the toothed belt (30) for the plating portion is formed. And the feed side engaging portion (26a) is deeply engaged with the engaging tooth (32), and the front and rear direction of the jig with respect to the moving direction is opposite to the plating process (A). When the jig return step (B) is carried, the return side engagement portion (26b) loosely engages with the engagement teeth (32) of the jig return portion toothed belt (31). And the engaging teeth (32) of the toothed belt (31) for the jig return portion by a stopping force externally applied to the jig when the jig is transported in the jig return step. Loosely engaged engagement claws (2
5) The engagement with the return side engagement portion (26b) is released, and the jig released from the toothed belt for the jig return portion is stocked after the stop position. An electroplating processing system that enables uniform plating, characterized by being configured to be capable of being performed. 3. The engaging claw (25) is connected to the jig (2).
3. The electroplating system according to claim 1, wherein a plurality of the jigs are mounted at predetermined intervals in a conveying direction of the jig. 4. The mounting interval of the plurality of engaging claws (25) attached to the jig (2) is adjusted by adjusting the toothed belt (30) for the plating section and the toothed belt (30) for the jig return section. 4. An electroplating process according to claim 3, wherein said first and second engaging portions are formed so as to be relatively displaced from the forming intervals of the engaging teeth formed at equal intervals. system.