JPS63765Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device that continuously processes a large number of plate-like objects, and is particularly suitable for processing plate-like objects that have many small holes on the board surface, such as printed wiring boards. Regarding suitable equipment.

Conventionally, when continuously etching, washing, drying, etc., a rectangular plate-like object is carried out by holding the upper edge of the plate-like object with a clamp and transporting it in a suspended state on a trolley conveyor or the like. is normal.
This vertical device does not take up much space and can evenly process the front and back surfaces of the plate-shaped object to be processed at the same time, but it has the disadvantage that it cannot process the part that is in contact with the clamp, and it also requires etching and water washing. When a large amount of liquid is injected, the liquid tends to accumulate in the lower part of the plate-like body, causing unevenness. Especially when cleaning a perforated plate such as a printed wiring board, cleaning water that has entered the small holes tends to accumulate. Disadvantages include uneven discharge, poor drainage, and the need for time and effort to finish. For this reason, there are horizontal devices that process perforated plates by moving the plate horizontally on a feed roller, but these have the drawbacks of uneven processing on the top and bottom surfaces and the need for a large floor space. It was hot.

The present invention maintains the above-mentioned advantages of the vertical apparatus, and also processes both sides of a plate at the same time without using hanging tools such as clamps, and provides an excellent finish.

An example of implementing the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the entire apparatus consists of a pair of vertical rolls 1 and 1, each of which grips the plate material a to be processed from both the front and back surfaces and transports it in the direction of the arrow in the figure. A plurality of receiving rollers 3 that rotate with the plate-like body a mounted between them, and a plurality of pairs of guide rollers that rotate while holding the lower edges of both sides of the plate-like body a between the rollers 2, 2. 4, 4 and a pair of liquid spray tanks 5, 5 arranged side by side so as to completely cover both sides of the plate-like body a are arranged on a base (not shown), and furthermore, the above-mentioned delivery rollers 2, An air injection mechanism 7 that forms an air curtain on both sides of the plate-shaped body is located between the pair of take-out rollers 6, 6 provided in front (on the right side of the figure) and is inclined with respect to the traveling direction of the plate-shaped body. possible.

The liquid spray tanks 5, 5 are connected to the plate-shaped body a at a slight interval.
The processing liquid is continuously injected from a large number of liquid sprinkling holes 8 that are opened toward both sides of the plate-like body a. There is. As shown in FIG.
It is installed at the intersection of graticules consisting of parallel lines and perpendicular lines that gradually rise within a range of 20 degrees, and is installed exclusively in the upper part of the front half that is roughly divided by diagonal lines that rise in the direction of travel.

The air injection mechanism 7 is formed by hanging two injection cylinders 10, 10 with a plate-shaped body a sandwiched between the bottom of an air distribution tank 9 connected to an air compressor with a hose. A large number of injection holes are provided in a vertical row toward the delivery rollers 2, 2, and compressed air is injected from the injection holes toward both surfaces of the plate-shaped body a from diagonally above. The injection cylinders 10, 10 are supported with their lower ends pivoted on a base, and by moving the mounting position of the air distribution tank 9 back and forth with respect to the base, the injection angle of compressed air to the plate-shaped body is adjusted. It is now possible to do so.

The present invention has the above-mentioned configuration, and the feed rollers 1, 1, 1 receiving rollers 3, 3, guide rollers 4, 4, and delivery rollers 2, 2 are rotated by a drive mechanism.
A plate-shaped body a that sequentially moves on two horizontal straight lines is
The front and back surfaces are treated equally between the liquid spray tanks 5 and 5, and then passed through an air curtain by the air injection mechanism 7 to thoroughly dry the front and back surfaces and the inside of the small holes of the plate-shaped body. is retrieved by When the liquid sprinkling holes are provided evenly on the inner surface of the liquid sprinkling tank, the area where the plate-shaped body a receives the liquid hardly changes during the movement of the plate-shaped body, so when etching, etc., horizontal stripes are formed on the plate-shaped body. This has the disadvantage that the quality of the product deteriorates. However, according to the present invention, the liquid sprinkling holes 8 of the liquid sprinkling tanks 5, 5 are arranged so that the position becomes gradually higher in the direction of movement of the plate-shaped body a, and the number gradually decreases from below. Therefore, the plate-shaped body is not locally subjected to excessive processing, and a product with an extremely good and even finish can be obtained.

In addition, the air injection mechanism 7 is capable of freely adjusting the injection angle of the air injection holes, and pinches the plate-like body over the entire height of the plate-like body a, and blows the jet air into the small holes of the plate-like body from diagonally above both sides of the plate-like body. Because it works in this way, the water that has accumulated in the small holes is instantly blown away without accumulating in the holes, resulting in complete drying. As a result of experiments, good results were obtained when the air injection mechanism 7 injected air obliquely from above at an angle of inclination of about 15 to 30 degrees with respect to the horizontal at an air pressure of 30 to 3,000 millimeters of water.

[Brief explanation of the drawing]

The drawings are explanatory diagrams showing an example of the implementation of the present invention, in which FIG. 1 is a cross-sectional plan view and FIG. 2 is a vertical cross-sectional side view. Codes in the figure: 1 is a feeding roller, 2 is a feeding roller, 3 is a receiving roller, 5 is a liquid spraying tank, 7
is an air injection mechanism, 8 is a liquid spraying hole, 9 is an air distribution tank,
10 indicates an injection cylinder, and a indicates a plate-shaped body.

Claims (1)

[Scope of utility model registration request] A pair of liquid spray tanks for spraying treatment liquid on both sides of the upright plate-shaped body, a plate-shaped body receiving roller provided between the liquid spray tanks, and a plate-shaped body receiving roller for spraying compressed air on both sides of the plate-shaped body. It consists of an air injection mechanism, and the inner surface of the liquid spraying tank is provided with a large number of liquid spraying holes that gradually rise in the direction of movement of the plate-shaped body and are located exclusively in the upper half of the inner surface. A plate-shaped object processing device characterized by being provided with a pair of injection cylinders having a large number of air injection holes capable of injecting compressed air from diagonally above the traveling direction of the plate-shaped object.