JP2004307895A - Spraying apparatus for printed circuit board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a means for transporting a printed circuit board not abut with the surface of the printed circuit board, and prevent damage on the surface of a printed circuit board, in a spraying apparatus for etching a printed circuit board etc. <P>SOLUTION: The spraying apparatus for the printed circuit board is provided with a means for horizontally transporting the printed circuit board, and a means for spraying a liquid onto the top and bottom surfaces of the printed circuit board, wherein the means for horizontally transporting the printed circuit board is a conveyer consisting of right and left rolls and has such a configuration as to arrange the right and left rolls on a bar of a ladder-shaped frame formed in approximately a V-shape while tilting them, arrange roll gears to each roll axis of the right and left rolls, and rotate the gears to rotate the right and left rolls. Thereby, the apparatus prevents the means for transporting the printed circuit board from abutting with the surface of the printed circuit board, and prevents the surface of the printed circuit board from being damaged. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a spray processing apparatus that performs spray processing such as etching, painting, applying an insulating agent, applying a photosensitive agent, developing, peeling, and washing with water on a printed wiring board.
[0002]
[Prior art]
In recent years, with the increasing added value of decorative articles and the like, surface processing of metal plate materials and the like, for example, high quality in surface processing such as mirror surface, hair line, satin finish or spin is required, and the surface of metal plate materials and the like is required. There is a demand for a processing technique that does not cause damage.
[0003]
In addition, as electronic devices have become smaller and more sophisticated, the density of printed wiring boards has been increasing, and the width of circuits formed on the surface has been reduced, resulting in spray processing such as etching of the printed wiring boards. In carrying out the method, a processing technique that does not damage the surface of the printed wiring board is regarded as important.
[0004]
Conventionally, as a device for performing a spraying process such as etching of a printed wiring board, for example, a horizontal transport device for horizontally transporting a printed wiring board, an upper spray nozzle, and a lower spray nozzle are provided. There is an apparatus for etching a printed wiring board in which the lower spray nozzle is disposed close to the transfer position of the printed wiring board while being arranged close to the transfer position of the printed wiring board (see Patent Document 1).
[0005]
In the known technique of Patent Document 1, a transport roll and a holding roll are disposed as a transport device for transporting a printed wiring board inside an etching tank, and the transport roll is rotated by a rotation driving device. The printed wiring board is transported, and the transporting roll and the holding roll are arranged in parallel with the printed wiring board, using a so-called flat roller conveyor or a foil roll conveyor or the like. The board is transported while supporting the surface of the board.
[0006]
[Patent Document 1]
JP-A-7-231155 (Claim 1, FIG. 1)
[0007]
[Problems to be solved by the invention]
However, in the known technique of Patent Literature 1, since the transport roll and the pressing roll abut on the surface of the printed wiring board, the surface of the printed wiring board may be damaged, and further, an etching solution or the like is sprayed. As a result, stress occurs in the transport of the printed wiring board by the transport roll and the holding roll, and slipping may occur between the printed wiring board and the transport roll or the holding roll. Has a problem that it may be greatly damaged.
[0008]
Therefore, in a conventional apparatus for performing a spraying process such as etching of a printed wiring board, the means for transporting the printed wiring board is prevented from contacting the surface of the printed wiring board, so that the surface of the printed wiring board may be damaged. There is a problem that must be solved to prevent
[0009]
[Means for Solving the Problems]
As a specific means for solving the problems of the conventional example described above, a first invention according to the present invention includes a means for horizontally transporting a printed wiring board, and a means for spraying the upper and lower surfaces of the printed wiring board. A spray processing apparatus for a printed wiring board, wherein the means for horizontally transporting the printed wiring board is a conveyor composed of left and right rolls, and the left and right rolls are formed on a rung of a ladder-like frame formed in a substantially V shape. A spray processing apparatus for a printed wiring board, characterized in that the left and right rolls are rotated by arranging and tilting the roll gears disposed on respective roll axes of the left and right rolls. Things.
[0010]
In the first invention, the power of the same drive unit is distributed to the roll gears disposed on the respective roll shafts of the left and right rolls; the opening angle of the left and right rolls is 90 to 170 °. The rotation direction of the drive gear that meshes with the roll gears is a direction in which the left and right rolls disposed at an angle are pulled outward; a plurality of left and right rolls are unitized and connected to the unit; Is included as an additional requirement.
[0011]
In the spraying apparatus for a printed wiring board according to the present invention, the means for horizontally transporting the printed wiring board is a conveyor made up of left and right rolls, and the left and right rolls are formed in a substantially V-shape on a rung of a ladder frame. Means for transporting the printed wiring board by rotating the roll gears provided on the respective roll axes of the left and right rolls to rotate the left and right rolls. , So that the surface of the printed circuit board is not damaged.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, the present invention will be described in detail based on specific embodiments.
FIG. 1 is a perspective view schematically showing a spray processing apparatus for a printed wiring board according to an embodiment of the present invention, FIG. 2 is a plan view of the spray processing apparatus, and FIG. 3 is shown in FIG. 3, and an enlarged side view is shown in FIG.
[0013]
The spray processing apparatus 2 for the printed wiring board 1 includes a means 3 for horizontally transporting the printed wiring board 1, a means 4a for spraying the upper surface of the printed wiring board 1 and a means 4b for spraying the lower surface. Is established.
[0014]
The means 4a and 4b for spraying the upper and lower surfaces of the printed wiring board 1 are composed of spray nozzles and the like provided in the spray pipes 4 provided on the upper and lower surfaces of the printed wiring board 1.
[0015]
As the spraying process, for example, a spraying process such as etching, painting, applying an insulating agent, applying a photosensitive agent, developing, peeling, and washing the printed wiring board 1 is performed.
[0016]
The means 3 for horizontally transporting the printed wiring board 1 is constituted by a conveyor comprising left and right rolls 5a, 5b. The left and right rolls 5a and 5b have a cylindrical shape, and roll shafts 7a and 7b are respectively inserted along central axes 6a and 6b in the length direction.
[0017]
Roll gears 8a and 8b are provided at one end of each of the roll shafts 7a and 7b of the left and right rolls 5a and 5b, and the other ends are provided with concave portions 10a and 10b formed in the roll bearings 9a and 9b. It is mounted in a rotatable state.
[0018]
The roll bearings 9a and 9b are disposed in recesses 12a and 12b formed in the crosspiece 11a of the ladder-shaped frame 11, and the crosspiece 11a of the ladder-shaped frame 11 is formed in a substantially V-shape. The rolls 5a, 5b are disposed on the crosspiece 11a of the ladder-shaped frame 11 at a predetermined angle via the roll bearings 9a, 9b, whereby the left and right rolls 5a, 5b Is set to 90 to 170 °.
[0019]
Since the roll shafts 7a and 7b of the left and right rolls 5a and 5b are supported by the roll bearings 9a and 9b disposed on the crosspiece 11a of the ladder-shaped frame 11, the left and right rolls 5a and 5b are stable. It is supported in the state where it was done.
[0020]
The left and right rolls 5a and 5b are disposed on the crosspiece 11a of the ladder-shaped frame 11 to form a substantially V shape, and the lower surface spraying means 4b is disposed between the crosspiece 11a and the crosspiece 11a. , The spray directly hits the processing surface of the printed wiring board 1, so that the spray processing can be efficiently performed. By increasing the opening angle θ of the left and right rolls 5a, 5b, The change in the spray pressure that hits can be reduced.
[0021]
Also, power from a driving machine (not shown) is transmitted to the original driving gear 13, and the original driving gear 13 can be rotated by operating the driving machine.
[0022]
The rotational power of the original drive gear 13 is transmitted to the left and right distribution drive gears 15a and 15b via the distribution drive shaft 14. Since the left and right distribution drive gears 15a and 15b are meshed with the left and right drive gears 16a and 16b, respectively, the left and right distribution drive gears 15a and 15b rotate to rotate the left and right drive gears 16a and 16b. Will also rotate.
[0023]
Further, since the left and right drive gears 16a, 16b are meshed with the roll gears 8a, 8b, the roll gears 8a, 8b rotate, and the left and right rolls 5a, 5b rotate via the roll shafts 7a, 7b. become. That is, since the power of the same driving machine can be distributed to rotate the left and right rolls 5a and 5b, the control circuit can be reduced and the rotation difference between the left and right rolls 5a and 5b can be eliminated. Since the occurrence of the transport shift failure can be reduced, the printed wiring board 1 can be transported horizontally.
[0024]
In this manner, the left and right rolls 5a and 5b are arranged on the rung 11a of the ladder-shaped frame 11 formed in a substantially V-shape and tilted, and the roll gears 8a and 8b are rotated to rotate the right and left rolls 5a and 5b. 5b, the means 3 for transporting the printed wiring board 1 can be prevented from coming into contact with the surface of the printed wiring board 1. Therefore, the surface of the printed wiring board 1 is It can prevent damage.
[0025]
Further, since the original driving gear 13 is rotated by one driving machine and the roll gears 8a and 8b are finally rotated by the rotation of the original driving gear 13, the rotation of the left and right rolls 5a and 5b is synchronized. The rotation of the left and right rolls 5a and 5b can be prevented from being shifted.
[0026]
Further, the left and right drive gears 16a and 16b are rotated in the directions of arrows a1 and a2, respectively, that is, the left and right rolls 5a and 5b arranged obliquely are pulled outward as indicated by arrows a3 and a4. By rotating, the thrust load generated between the left and right rolls 5a, 5b and the roll bearings 9a, 9b can be reduced and the friction of the bearings can be reduced, so that the transfer energy can be reduced and the life of the bearings can be reduced. Can be extended.
[0027]
Further, the plurality of left and right rolls 5 a and 5 b may be formed into a unit 17, and the drive gear shafts 18 a and 18 b of the unit 17 may be connected via the connection coupling 19. Since the units 17 are connected via the connection coupling 19 in this manner, assembling / removal to the spray processing apparatus 2 can be easily performed, and replacement and repair can be easily performed outside the apparatus. Work time can be reduced.
[0028]
【The invention's effect】
As described above, the apparatus for spraying a printed wiring board according to the present invention includes a means for horizontally transporting the printed wiring board, and a means for spraying the upper and lower surfaces of the printed wiring board. In a spray processing apparatus, the means for horizontally transporting the printed wiring board is a conveyor comprising left and right rolls, and the left and right rolls are arranged on a rung of a ladder-like frame formed in a substantially V shape. By tilting and rotating the right and left rolls by rotating the roll gears disposed on the respective roll axes of the left and right rolls, the means for transporting the printed wiring board is applied to the surface of the printed wiring board. An excellent effect that the surface of the printed wiring board can be prevented from being damaged by avoiding contact with the printed wiring board is exhibited.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing a spray processing apparatus for a printed wiring board according to an embodiment of the present invention.
FIG. 2 is a plan view schematically showing the spray processing apparatus.
FIG. 3 is an enlarged schematic sectional view taken along line AA of FIG. 2;
FIG. 4 is a side view schematically showing the spray processing apparatus.
[Explanation of symbols]
Reference Signs List 1 printed wiring board 2 spray processing device 3 means for horizontally transporting printed wiring board 4 means for spraying pipes 4a, 4b means for spray processing on upper and lower surfaces 5a, 5b left and right rolls 6a, 6b center axes 7a, 7b roll axes 8a, 8b Roll gears 9a, 9b Roll bearings 10a, 10b, 12a, 12b Recess 11 Ladder-shaped frame 11a Crossbar 13 Main drive gear 14 Distribution drive shafts 15a, 15b Left and right distribution drives 16a, 16b Left and right drive gears 17 Units 18a, 18b Drive gear shafts 19 Connection coupling

Claims (5)

A spray processing apparatus for a printed wiring board, comprising: means for horizontally transporting the printed wiring board; and means for performing spray processing on the upper and lower surfaces of the printed wiring board,
A means for horizontally transporting the printed wiring board is a conveyor comprising left and right rolls,
The left and right rolls are arranged on a rung of a ladder-like frame formed in a substantially V shape and tilted,
A spray processing apparatus for a printed wiring board, wherein the left and right rolls are rotated by rotating roll gears disposed on respective roll shafts of the left and right rolls. The roll gears arranged on the respective roll shafts of the left and right rolls include:
2. The apparatus for spraying a printed wiring board according to claim 1, wherein the power of the same driver is distributed. The opening angle of the left and right rolls
3. The apparatus for spraying a printed wiring board according to claim 1, wherein the angle is 90 to 170 [deg.]. The rotation direction of the drive gear meshing with the roll gear is
The spray processing apparatus for a printed wiring board according to any one of claims 1 to 3, wherein the right and left rolls arranged in an inclined direction are pulled outward. 5. The printed wiring board spray processing apparatus according to claim 1, wherein a plurality of left and right rolls are unitized and the units are connected.

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