JPH05178436A - Conveying/treating device for printed wiring board - Google Patents

Abstract

PURPOSE:To provide a conveying/treating device for a printed wiring board which is excellent in workability of transportation and surface treatment. CONSTITUTION:The conveying/treating device carries out surface treatment on the surface of a printed wiring board 7 by jetting fluid such as etching treatment solution 81 as fluid while conveying the printed wiring board 7 by means of a conveyor 1. The conveyor 1 is composed of left and right parallel movable bodies 11 making a pair in the advancing direction F, and locking pins 2 as a fixing tool to fix the edge parts of the printed wiring board 7 is provided in the parallel movable bodies 11. A clamp can also be used as the fixing tool.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wiring board transfer processing apparatus which is excellent in transfer and surface processing workability.

[0002]

2. Description of the Related Art As shown in FIG.
In order to perform various surface treatments, it is often carried by a carrying roller 9. Then, for example, as shown in FIG. 10, the printed wiring board 7 is conveyed by the rollers 9 and the etching treatment liquid 81 is sprayed from the vertical direction by the spray nozzles 8. As a result, on the surface of the printed wiring board 7, the metal coating 75 such as a copper foil is etched by the etching treatment liquid 81 to form a conductor circuit.

Thereafter, the printed wiring board 7 is washed in the next step as well while being conveyed, and the surface thereof is washed with washing water or dried by blowing hot air. As described above, when manufacturing the printed wiring board 7, the printed wiring board 7 is often continuously conveyed while various surface treatments are applied to the surface of the printed wiring board 7. At this time, the printed wiring board 7 is conveyed on the roller 9 by utilizing the frictional force.

[0004]

However, the above-mentioned conventional technique has the following problems. That is, as shown in FIG.
The spray nozzle 8 particularly below the printed wiring board 7
When the etching treatment liquid 81 is further sprayed, the etching treatment liquid 81 is not sprayed on the back surface portion 751 of the printed wiring board 7 with which the roller 9 is in contact. Therefore, in the back surface portion 751 of the printed wiring board 7, uneven coating of the etching treatment liquid 81 may occur, which may cause etching failure.

If the printed wiring board 7 is relatively thick and heavy, the feed of the roller 9 may be insufficient, and slip may occur between the printed wiring board 7 and the printed wiring board 7, resulting in an inconstant conveyance speed. On the other hand, when the printed wiring board 7 is relatively thin and light, the printed wiring board 7 may be caught between the rollers 7 and fall from the line. The present invention has been made in view of the above conventional problems, and an object of the present invention is to provide a transfer processing apparatus for a printed wiring board, which has excellent workability in transfer and surface treatment.

[0006]

According to the present invention, there is provided a conveyor processing apparatus for carrying out surface treatment by injecting a fluid onto a surface of a printed wiring board while conveying the printed wiring board by a conveyor, wherein the conveyor is arranged in a traveling direction. A conveyance processing apparatus for a printed wiring board, comprising a pair of left and right parallel moving bodies, wherein the parallel moving body is provided with a fixture for fixing an end portion of the printed wiring board. What is most noticeable in the present invention is that the conveyor is composed of a pair of parallel moving bodies provided on the left and right with respect to the traveling direction, and the parallel moving body is provided with a conveyor for fixing the end portion of the printed wiring board. It is in.

The parallel moving body is composed of a chain conveyor, a belt conveyor or the like. The parallel moving bodies are arranged endlessly in a pair with respect to the traveling direction. As the fixing device, for example, as shown in the first embodiment, a projecting locking pin arranged at a constant interval on the parallel moving body is used. As the fixture, for example, as shown in Examples 2 and 3, a clamp which is arranged on the parallel moving body at a constant interval and which can be automatically opened and closed is used.

The printed wiring board includes, for example, a relatively thin and light film chip carrier and a relatively thick and heavy chip mounting substrate. Examples of the fluid include etching solution, cleaning water, and catalyst solution. The surface treatment may be, for example, a printed wiring board etching treatment, a cleaning treatment, a hot air drying treatment, or a catalyst coating treatment.

[0009]

In the present invention, a large number of left and right fixtures are provided on the parallel moving body. Therefore, when the printed wiring board is transported by the parallel moving body, the end portion of the printed wiring board is fixed by a fixing tool. Therefore, the printed wiring board is prevented from slipping on the parallel moving body or being caught between the parallel moving bodies and falling regardless of the size and weight of the printed wiring board. In addition, since the conveyor consists of a pair of left and right parallel moving bodies with respect to the traveling direction, the parallel moving bodies interfere with the surface treatment by jetting the fluid from below to the front surface (back surface) of the printed wiring board. There is no.

Further, the ejection unevenness of the fluid does not occur on the surface of the printed wiring board. Therefore, the conveyance speed of the printed wiring board is constant, the surface treatment is smoothly performed, and product defects do not occur. Therefore, according to the present invention, it is possible to provide a transfer processing apparatus for a printed wiring board, which has excellent workability in transfer and surface treatment.

[0011]

【Example】

Example 1 A printed wiring board transfer processing apparatus according to an example of the present invention will be described with reference to FIGS. As shown in FIG. 1, the transfer processing apparatus of this example carries out surface treatment by spraying an etching treatment liquid 81 as a fluid onto the surface of the printed wiring board 7 while the printed wiring board 7 is being conveyed by the conveyor 1. Is. The conveyor 1 is composed of a pair of parallel moving bodies 11 and 11 provided on the left and right with respect to the traveling direction, and the parallel moving body 11 is locked as a fixture for fixing an end 71 of the printed wiring board 7. It is provided with a pin 2.

As the parallel moving body 11, a chain made of titanium having excellent chemical resistance and wear resistance is used. As shown in FIG. 2, the parallel moving body 11 is connected in an endless shape and is configured to rotate in an annular shape by a rotating roll 110. Further, above and below the parallel moving body 11, spray nozzles 8 provided in the infusion tube are arranged at regular intervals. The spray nozzle 8 is
As shown in FIGS. 2 and 3, the etching treatment liquid 81 as a fluid is jetted from above and below onto the printed wiring board 7 conveyed by the parallel moving body 11.

Further, as shown in FIG. 2, the printed wiring board 7 is a substrate stage 7 in which a large number of substrates are stacked.
From 5 on, a robot (not shown) having an adsorption device is placed on the parallel moving body 11 one by one. As shown in FIG. 3, the parallel moving bodies 11 are arranged in pairs on both sides of the spray nozzle 8. The transfer processing device is
As shown in FIGS. 2 and 3, the entire fluid scattering prevention wall 8 is provided.
Covered by 0.

Next, the function and effect will be described. In this example, as shown in FIG. 1, a large number of locking pins 2 as a pair of left and right fixtures are provided on the parallel moving body 11. Therefore, when the printed wiring board 7 is conveyed from the parallel moving body 11, the locking pin 2 is fitted and fixed in the locking hole 710 of the end portion 71 of the printed wiring board 7.
Therefore, the printed wiring board 7 slips on the parallel moving body 11 regardless of the size and weight of the printed wiring board 7,
It will not be caught between the parallel moving bodies 11 and fall from the line.

Further, as shown in FIGS. 1 and 3, the conveyor 1 has a pair of left and right parallel moving bodies 11 with respect to the traveling direction of the printed wiring board 7, so that the back surface of the printed wiring board 7 is etched from below. The conveyor 1 does not get in the way when the surface treatment is performed by jetting the liquid 81. Therefore, the ejection unevenness of the etching treatment liquid 81 does not occur on the back surface of the printed wiring board 7.

Therefore, the conveying speed of the printed wiring board 7 is constant and stable, and the surface treatment can be smoothly performed at a constant speed. Further, since the unevenness of the jetting of the etching treatment liquid 81 does not occur, product defects of the printed wiring board 7 are less likely to occur. Therefore, according to this example, the workability of the conveyance of the printed wiring board 7 and the surface treatment such as the etching treatment is improved.

Embodiment 2 In this embodiment, as shown in FIGS. 4 to 7, the printed wiring board 7 can be automatically attached and detached in place of the locking pin 2 of the transfer processing apparatus according to the first embodiment. Clamp 3 is parallel moving body 1
It is arranged on top of 2. Others are the same as those in the first embodiment. As shown in FIGS. 6 and 7, the clamp 3 includes a head portion 31, a locking portion 33 disposed below the head portion 31, a rod-shaped main body 32, and a spring coil 34 fitted and inserted in the rod-shaped main body 32. And a caster portion 35 arranged below the rod-shaped body 32. The rod-shaped main body 32 is vertically movably fitted into the mounting hole 120 provided in the parallel moving body 12. Reference numeral 351 in the figure indicates a caster mounting portion.

The head portion 31 has an elastic body 311 made of silicon rubber on the surface that contacts the printed wiring board 7. The locking portion 33 is arranged at a position facing the elastic body 311. The parallel moving body 12 is composed of an elastic elongated conveyance belt made of rubber or the like. As shown in FIGS. 4 and 5, the parallel moving body 12 is provided with a large number of the clamps 3 at regular intervals. Below the parallel moving body 12, as shown in FIG. 4, an opening / closing guide portion 13 for the clamp 3 is provided in the shape of a strip near the portion for supplying the printed wiring board 7.
The opening / closing guide portion 13 has a tapered portion 13 on the front side.
Has 1. As shown in FIG. 5, the parallel moving body 12 is located in the vicinity of the taper portion 131, and the substrate stage 75 for keeping the printed wiring board 7 on standby in the vicinity thereof.
Is arranged.

The parallel moving body 12 and the opening / closing guide portion 1
A robot 4 for adsorbing and supplying the printed wiring board 7 is arranged above 3. The robot 4 has a suction unit 41 on the lower side and a rotating unit 42 on the upper side. Therefore, when the printed wiring board 7 is conveyed, as shown in FIG.
As shown in FIG. 5, first, the robot 4 picks up the printed wiring boards 7 one by one from the substrate stage 75 and places them on the parallel moving body 12.

At this time, of the clamps 3, the clamp 3 for gripping the printed wiring board 7 starts to rise above the taper portion 131 of the opening / closing guide portion 13. When the caster portion 35 of the clamp 3 reaches the top of the opening / closing guide portion 13 as shown in FIG. 4, the spring coil 34 contracts against the urging force thereof. As a result, as shown in FIG. 4, the head 31 and the rod-shaped body 3 are
2 projects above the parallel moving body 12 to form an opening 30.

Then, the printed wiring board 7 attracted by the robot 4 is inserted into the opening 30.
When the caster portion 35 of the clamp 3 is disengaged from the opening / closing guide portion 13, the opening 30 is closed by the biasing force of the spring coil 34. As a result, the printed wiring board 7 is automatically gripped and fixed by the clamp 3. An open / close guide unit 13 and a robot 4 similar to those described above are provided at the transfer end location, and the printed wiring board 7 is taken out by the action opposite to the above.
Therefore, according to the present example, the printed wiring board 7 can be placed and removed on the parallel moving body 12 automatically and reliably as compared with the first embodiment. Therefore, the printed wiring board 7 can be easily attached to and detached from the parallel moving body 12. Other,
The same effect as that of the first embodiment can be obtained.

Third Embodiment In this embodiment, as shown in FIG. 8, the parallel moving body 12 in the second embodiment is provided with an ascending curve portion 121 immediately before the opening / closing guide portion 13. Others are the same as those in the second embodiment. The rising curve portion 121 is shown in FIG.
As shown in FIG. 4, the clamp 3 is arranged along the shape of the taper portion 131 of the opening / closing guide portion 13. Therefore, when the robot 4 sucks the printed wiring board 7 and causes the clamp 3 to hold the printed wiring board 7, the opening of the opening 30 of the clamp 3 is quickly and smoothly performed. Therefore, according to this example,
As compared with the second embodiment, the printed wiring board 7 can be easily gripped by the clamp 3. In addition, the same effect as that of the first embodiment can be obtained.

[Brief description of drawings]

FIG. 1 is a perspective view of a printed wiring board transfer processing apparatus according to a first embodiment.

FIG. 2 is a side view of the printed wiring board transport processing apparatus according to the first embodiment.

FIG. 3 is a front view of the printed wiring board transport processing apparatus according to the first embodiment.

FIG. 4 is a side view of the printed wiring board transport processing apparatus according to the second embodiment.

FIG. 5 is a plan view of the printed wiring board transport processing apparatus according to the second embodiment.

FIG. 6 is a front view of the clamp according to the second embodiment.

FIG. 7 is a side view of the clamp according to the second embodiment.

FIG. 8 is a side view of the printed wiring board transport processing apparatus according to the third embodiment.

FIG. 9 is a perspective view of a conventional printed wiring board transport processing device.

FIG. 10 is a side view of a conventional printed wiring board transport processing device.

[Explanation of symbols]

 1. ． ． Conveyor, 11, 12. ． ． Parallel moving body, 2. ． ． Locking pin, 3. ． ． Clamp, 7. ． ． Printed wiring board, 71. ． ． Edge, 8. ． ． Spray nozzle, 81. ． ． Etching solution,

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location H05K 3/26 7511-4E

Claims (1)

[Claims] 1. A transport processing apparatus for carrying out surface treatment by injecting a fluid onto the surface of a printed wiring board while transporting the printed wiring board by a conveyor, wherein the conveyors are provided in a pair on the left and right with respect to the traveling direction. It consists of parallel moving objects,
A conveyance processing apparatus for a printed wiring board, wherein the parallel moving body is provided with a fixture for fixing an end portion of the printed wiring board.