KR100270445B1 - Apparatus for manufacturing printed circuit board - Google Patents

Abstract

PURPOSE: An apparatus for manufacturing a printed circuit board is provided to perform a surface processing for a printed circuit board in a narrow space with a high degree of efficiency. CONSTITUTION: A conveyer(16) consecutively supplies or discharges objects(14) to be processed on a board having a metal film attached thereon. A liquid medicine bath(18) is divided into a front chamber(19) and a rear chamber(20). Plural layers of Baskets(15) are stacked in the front chamber(19) and the rear chamber(20). A front pickup unit(24) picks up an object to be processed and mounts it on the top basket(15) in the front chamber(19). A rear pickup unit picks up an object to be processed mounted on the top basket(15) in the rear chamber(20) and transfers it to a discharge conveyer. A first lifting unit(67,69) lifts up the plural baskets stacked in the front chamber(19). A second lifting unit(87,88) lifts up the plural baskets stacked in the rear chamber(20). A lower part shifting unit(51) shifts the bottom basket(15) in the front chamber(19) to the bottom of the rear chamber(20). A return pickup unit(31) picks up the top basket(15) in the rear chamber(19) and mounts it on top of the baskets stacked in the front chamber(19).

Description

Printed Circuit Board Manufacturing Equipment

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing a printed circuit board, and more particularly, to an apparatus for manufacturing a printed circuit board having a new structure capable of efficiently performing a surface treatment process of a printed circuit board in a narrow space.

Recently, multilayer printed circuit boards have been used according to the trend of high integration of semiconductors. The multilayer circuit board is formed by alternately stacking and attaching a copper foil plate on which a circuit pattern is etched and a thermosetting resin board such as epoxy resin. FIG. 1 exemplarily illustrates a blackening process, which is a surface treatment process of a copper foil plate for improving adhesion between a copper foil plate and a resin plate laminated in a conventional multilayer circuit board. That is, the object to be processed in which the copper foil plate on which the circuit pattern is formed is attached to both surfaces or one surface of the resin plate, as shown in the drawing, is introduced from the degreasing unit 1 and the foreign matter deposited on the copper foil surface by an acid or alkaline solution is primary. After the removal, and then marching with water in the water washing section (2), optionally neutralized acid or alkali remaining on the copper foil surface in the neutralization treatment section (3), the copper foil plate 1 to 3 microns through the soft etching section (4) Corrosion is removed to remove any flaws or other impurities formed on the surface. Next, the water washing part 5 is washed again with water, and as a pretreatment of the blackening treatment, after passing through the pre-dipping section 6 which is preliminarily immersed in the acidic liquid, the treated materials are placed in the acidic chemical solution of the blackening treatment section 7. After the addition, a black oxide film (Black Oxide) is formed on the surface of the copper foil surface, and then the blackening process is completed while passing through the water washing part 8, the reducing treatment part 9, the water washing part 10, and the drying part 11. The above shows a general blackening treatment process of a general copper sheet, which may be partially changed.

By the way, in the surface treatment process of such a multilayer circuit board, the time required to process the to-be-processed object passing through the above-mentioned soft etching part 4 or blackening process part 7 in these processes is the time required in another process before and after. Since it is longer than, since the soft etching part 4 or the blackening part 7 becomes a bottleneck part in consideration of the advancing speed of the whole line, continuous automation process is difficult unless the tank of these parts is made long. . Therefore, in the related art, the process was carried out depending on the manual operation by putting the target object into the tank of the soft etching unit 4 or the blackening unit 7 and taking it out after a predetermined time. Therefore, it is difficult to fully automate a continuous whole process, and also the quality control was not easy, for example, productivity fell and the defect rate became high.

The present invention has been proposed in view of the problems of the surface treatment process of the conventional printed circuit board as described above, and the like before and after the processing such as the soft etching portion 4 and the blackening treatment portion 7 during the surface treatment process of the multilayer circuit board. Compared to the process, the process takes a relatively long time compared to the process, and it is possible to make a compact and compact process without lengthening the line, but to secure a sufficient residence time to construct a continuous and automated process line. It is to provide.

1 is a schematic process diagram of a conventional printed circuit board manufacturing

2 is a front view of an embodiment of the present invention;

3 is a plan view of the above embodiment

4 and 5 are cross-sectional views taken along lines A-A and B-B of FIG.

<Description of the symbols for the main parts of the drawings>

14. Object to be processed 15. Basket

18. Chemical tank 19. Front chamber

20. Rear chamber 22. Horizontal cylinder

24. Suction Plate 26. Suction Plate

31. Pickup head 51. Horizontal transport plate

52. Suction plate 67. Lifting block

69. Mounting Pin 87. Lifting Block

According to the present invention, the conveyor (16, 17) for continuously supplying or discharging the plate-shaped object 14 attached to the metal thin plate on the surface, and the chemical liquid for treating the object 14 is stored and the supply side The chemical chamber 18 divided into the front chamber 19 and the rear chamber 20 arranged on the discharge side, and a plurality of stages in the front chamber 19 and the rear chamber 20 of the chemical tank 18 Stacked and provided with a basket 15 having a flat frame shape, which is mounted on the object 14 to be raised or lowered, and is disposed above the chemical tank 18, and is processed by the supply conveyor 16. The pick-up means 24 which picks up water 14 and mounts it on the top basket 15 in the front chamber 19, and the workpiece 14 mounted in the top basket 15 in the rear chamber 20. A rear pick-up means 26 for picking up and moving the pick-up to the discharge conveyor 17, and in the front chamber 19. First lifting means 67 and 69 for lifting a plurality of stacked baskets 15 by a predetermined height and a second lifting ring for lifting a plurality of baskets 15 stacked in the rear chamber 20 by a predetermined height. Means (87,88), lower horizontal movement means (51) for horizontally moving the basket (15) at the bottom of the front chamber (20) to the bottom of the rear chamber (20), and the top of the rear chamber (19). There is provided an apparatus for manufacturing a printed circuit board comprising a return pick-up means (31) for picking up the basket (15) and mounting it on the basket (15) stacked on the front chamber (20).

According to another feature of the present invention, the front pick-up means 24 and the rear pick-up means 26 are lifted to the slide blocks 28 and 30 reciprocating along the guide rail 23 by the horizontal reciprocating cylinder 22. It is made of a suction plate (24, 26) is possibly mounted, the return pick-up means 31 is characterized in that the pickup head 31 is mounted to a slide block 29 provided between the slide blocks (28, 30) An apparatus for manufacturing a printed circuit board is provided.

According to another feature of the invention, the first lifting means (67,69) is a lifting block 67, which is linked by a two-stage operation cylinder (61), mounted on the lifting block 67 and the pin operation Composed by a cylinder (72) is made of a landing pin 69 which is engaged or released with the basket (15), the second lifting means (87, 88) are linked by a two-stage operation cylinder (81) A lift block 87 for lifting the basket 15 at the bottom of the rear chamber 20 and a stopper 88 for preventing the lowering of the basket 15 lifted by the lifting block 87. An apparatus for manufacturing a printed circuit board is provided.

According to another feature of the present invention, the lower horizontal moving means 51 is connected to the drive motor 41 is a horizontal movable plate for reciprocating the lower portion of the front chamber 19 and the rear chamber 20 ( 51, and a suction plate 52 connected to the suction pipe 53 is attached to the upper surface of the horizontal transfer plate 51 to suck the basket 15 mounted thereon. Is provided.

Hereinafter, with reference to the drawings will be described a preferred embodiment of the present invention. 2 to 5 show a preferred embodiment of the present invention. As shown, the supply conveyor 16 and the discharge conveyor 17 are arranged before and after the chemical tank 18 to sequentially process the workpiece 14. To be supplied or discharged. Here, the object 14 is typically a thin plate-like material such as a copper-clad resin plate used in the manufacture of a multilayer printed circuit board. The chemical bath 18 is a soft etching process, a black oxide process or other suitable printing. It can be a surface treatment process of a circuit board. The chemical liquid tank 18 is divided into front and rear and is composed of a front chamber 18 and a rear chamber 20 in which a plurality of baskets 15, which are formed in a flat frame on which a workpiece 14 is mounted, are stacked. . The basket 15 is composed of a rectangular frame of a channel-shaped cross section opened to an outer side, and a net, perforated network, or comb-shaped blade member supported by the frame and on which a workpiece is placed.

In the upper part of the chemical liquid tank 18, three slide blocks 28, 29, 30 which move horizontally along the guide rail 23 by the horizontal moving cylinder 22 are provided at predetermined intervals. The suction plate 24, the pickup head 31, and the suction plate 26 are mounted to the 29 and 30, respectively. The first slide block 28 and the third slide block 30 are integrally connected by the connecting bar 34, and the second slide block 29 is the adjust cylinder 33 with respect to the third slide block 30. ). The adjust cylinder 33 has a stroke length of the suction plates 24 and 26 for reciprocating between the supply or discharge conveyors 16 and 17 and the front chamber 19 or the rear chamber 20 and the front chamber 19. And to adjust the difference in the stroke length of the pickup head 31 for reciprocating between the rear chamber (20). Therefore, when these stroke lengths are the same, the adjust cylinder 33 can be omitted. The suction plates 24 and 26 are configured to be lifted by the up-down cylinder 27. The pickup head 31 is configured to pick up by the pickup cylinder 32.

Meanwhile, the front chamber 19 and the rear chamber 20 are provided with first and second spring means for lifting a plurality of stacked baskets 15, respectively. The first lifting means is provided on one side of the front chamber 19, the elevating cylinder 61 is extended in two stages, the connecting shaft 63 and the link 64 is operatively connected to the elevating cylinder (61) And an elevating block 67 for elevating and elevating through the elevating shaft 65, and a locating pin 69 provided in the elevating block 67. The inlet pin 69 is connected to the pin actuating cylinder 72 installed at an upper portion thereof by the connecting shaft 71 and the link mechanism 70 so as to protrude or contract horizontally to a locking groove formed at the side of the basket 15. Is engaged or released. In addition, the second lifting means is installed on one side of the rear chamber 20 and lifted by the lifting cylinder 81, which is also extended in two stages, the connecting shaft 83, the link 84, and the lifting shaft 85. A lift block 87 and a stopper 88 in a form similar to an anti-reversal latch that prevents the stack of the basket 15 lifted by the lift block 87 from descending.

On the other hand, the bottom of the chemical tank 18 is provided with a lower horizontal movable plate 51 for reciprocating to move the lower basket 15 of the front chamber 19 to the rear chamber 20 and to return. The lower horizontal movable plate 51 is operated by the shaft 46 which rotates through the bevel gear 43 and the shaft 44 and the bevel gear 45 via the drive motor 41 and the reduction gear 42. . The shaft 46 is provided with a pinion gear 47, and a rack gear 48 engaged with the lower horizontal movable plate 51 is attached to the shaft 46, and when the driving motor 41 is driven, the lower horizontal movable plate 51 is provided. ) Will be reciprocating back and forth. At this time, since the lower horizontal movable plate 51 must carry the basket 15 in the chemical liquid, the lower horizontal movable plate so that the basket 51 or the workpiece 14 may not be lifted and lifted during transportation due to the resistance of the fluid. The suction plate 52 is attached to the upper surface of the 51. The suction plate 52 has a plurality of through holes formed therein and has a structure in communication with the suction pipe 53 connected to the vacuum apparatus. This horizontal movable plate 51 is also guided by the guide rail 54 and the roller 55.

In addition, there is provided a sensor for detecting the operation or position of various operation mechanisms and a control unit for sequentially controlling the operation thereof in a predetermined order.

Referring to the operation of the present invention having such a configuration, first, the adsorption plate 24 is moved over the supplied workpiece 14 on the supply conveyor 16. At this time, the adsorption plate 26 moves over the rear chamber 20, and the pickup head 31 moves over the front chamber 19 with the basket 15 picked up by adjusting the position of the adjust cylinder 33. . Subsequently, the adsorption plate 24 and the adsorption plate 26 are lowered, and the object to be processed 14 is sucked up from the supply conveyor 16 and the rear chamber 20, respectively. Meanwhile, the pickup head 31 lowers the basket 15 into the front chamber 19. Next, the adsorption plate 24 and the adsorption plate 26 are advanced, and the adsorption plate 24 places the object 14 on the uppermost basket 15 of the front chamber 19 and the adsorption plate 26 is processed. Put water (14) on the discharge conveyor (17). At this time, the pickup head 31 is in a state capable of picking up the basket 15 that is returned to the upper portion of the rear chamber 20 to be raised.

On the other hand, in order to horizontally move the lowermost basket 15 of the front chamber 19 to the rear chamber 20, first, the lifting block 67 constituting the first lifting mechanism is one end of the lifting cylinder 61 at the initial lower position. It moves up one pitch by operation and is positioned at the height of the basket 15 directly above the lowermost basket mounted on the horizontal movable plate 51, and is protruded by the pin actuating cylinder 72 to be coupled to the side surface of the basket 15. do. Next, the entire basket 15 is lifted slightly by the two-stage operation of the lifting cylinder 61. Then, the horizontal movable plate 51 moves to the rear chamber 20 with the lowermost basket 15 mounted thereon. . At this time, a vacuum is applied through the suction plate 52 so that the object 14 or the basket 15 is not injured by the fluid resistance or buoyancy of the chemical liquid.

In this way, when the horizontal movable plate 51 is introduced into the rear chamber 20, the moved basket 15 is mounted on the lifting block 87 forming the second lifting mechanism. When a sensor (not shown) detects that the basket 15 is mounted on the lifting block 87, the lifting cylinder 81 is operated to raise the lifting block 87. At this time, when the lifting cylinder 81 is operated in two stages, the initial load of the lifting operation can be reduced and smooth operation is possible. When the lifting block 87 is raised, the mounted basket 15 pushes out the reversing latch type stopper 88 installed on both sides, and slightly lifts the baskets mounted thereon, and then the lifting block 87 Will descend. At this time, the loaded baskets are caught by the stopper 88 and the lowering stops.

As described above, the basket 15 is sequentially supplied to the lower end of the rear chamber 20 to be raised, and the workpiece 14 mounted on the upper basket 15 of the rear chamber 20 is adsorbed by the suction plate 26 and discharged. In the empty basket 15, the return pick-up means is transferred to the upper portion of the front chamber 19 by the pickup head 31 so that the new workpiece 14 is mounted.

In this way, the to-be-processed object 14 taken from the supply conveyor 16 is carried to the adsorption plate 24, and it mounts in the upper basket 15 in the front chamber 19 of the chemical | medical solution tank 18, and the basket 15 is mounted. Lowered one by one, the lower portion of the front chamber 19, the basket 15 is mounted on the horizontal transfer plate 51 one by one to move to the rear chamber 20, inside the rear chamber 20, the stack of the basket 15 While raising the by one, the object 14 is discharged to the suction plate 26, the empty basket 15 is picked up by the pickup head 31 and a series of organic operations to return to the upper portion of the front chamber 19 It is performed sequentially by a control mechanism not shown.

According to the present invention described above, by putting the plate-like treatment in the basket, the treatment with the basket in the chemical liquid tank divided into front and rear, lowering and horizontally moving to raise the processed object by pick-up discharge, the basket is returned by By allowing the workpiece to remain in the chemical bath for a sufficient time, it is possible to construct a continuous and automated process line without increasing the apparatus.

Claims (4)

Conveyors 16 and 17 for continuously supplying or discharging the plate-shaped object 14 with a metal thin plate on the surface thereof, and the front chamber disposed on the supply side with the chemical liquid for treating the object 14 being stored. The chemical liquid tank 18 divided into the 19 and the rear chamber 20 arranged on the discharge side, the front chamber 19 and the rear chamber 20 of the chemical liquid tank 18 are stacked in multiple stages and provided A basket 15 having a flat frame shape mounted on the object 14 to be raised or lowered, and disposed above the chemical tank 18, and the object 14 to be processed by the supply conveyor 16. The pickup unit 24 picks up and mounts the upper basket 15 on the uppermost basket 15 in the front chamber 19 and the workpiece 14 mounted on the uppermost basket 15 in the rear chamber 20, Rear pick-up means 26 for transferring to discharge conveyor 17 and a plurality of stacked bars in the front chamber 19 First lifting means 67 and 69 for lifting the basket 15 by a predetermined height, and second lifting means 87 for lifting a plurality of baskets 15 stacked in the rear chamber 20 by a predetermined height; 88, lower horizontal movement means (51) for horizontally moving the basket (15) at the bottom of the front chamber (20) to the lower portion of the rear chamber (20), and the top basket (15) of the rear chamber (19). And a return pick-up means (31) for picking up and mounting it on the basket (15) stacked on the front chamber (20). 2. The front pickup means (24) and the rear pickup means (26) according to claim 1, wherein the front pick-up means (24) and the rear pick-up means (26) are liftable to the slide blocks (28, 30) reciprocating along the guide rails (23) by a horizontal reciprocating cylinder (22). It consists of a suction plate (24, 26) mounted, the return pickup means 31 is characterized in that consisting of a pickup head 31 mounted on a slide block 29 installed between the slide blocks (28, 30) Device for manufacturing printed circuit boards. 2. The lift block (67) according to claim 1, wherein the first lifting means (67, 69) is a lifting block (67) linked by a two-stage operation cylinder (61), and the pin operation cylinder (72) is mounted to the lifting block (67). It is made of a landing pin 69 that is engaged by the basket 15 and engaged or released by the), the second lifting means (87, 88) are linked by a two-stage operation cylinder 81 and the rear chamber ( 20) A printed circuit board comprising a lift block 87 for lifting a basket 15 at a lower end thereof, and a stopper 88 for stopping a lowering of the basket 15 lifted by the lifting block 87. Manufacturing equipment. The lower horizontal moving means (51) is connected to the driving motor (41) to the horizontal movable plate (51) for reciprocating the lower part of the front chamber (19) and the rear chamber (20). And a suction plate (52) connected to the suction pipe (53) to adsorb the basket (15) mounted on the upper surface of the horizontal transfer plate (51).