CN201199753Y

CN201199753Y - Defoaming apparatus

Info

Publication number: CN201199753Y
Application number: CNU200720195661XU
Authority: CN
Inventors: 洪源基; 洪多锳; 洪铭志; 洪锡号
Original assignee: HUN MOON-GEE; HUN MOON GEE
Current assignee: HUN MOON-GEE; HUN MOON GEE
Priority date: 2006-11-08
Filing date: 2007-11-07
Publication date: 2009-02-25
Anticipated expiration: 2017-11-07
Also published as: KR100745213B1

Abstract

The utility model relates to a debubbling device, in particular to a device used for eliminating the bubbles generated in spraying liquor in developing and etching processes during the production process of a printed circuit board. The device consists of a filter element (41), a filter cylinder (30) and a driving motor (40), wherein, the filter element (41) is produced into a revolving body and fixed at the end part of the rotating axle (40a) of the driving motor (40), the filter cylinder (30) is a cylindrical body with an open upper end, the driving motor (40) is placed at the upper part of the filter cylinder (30), the filter element (41) is placed in the filter cylinder (30), and the axle centers of the filter element (41), the filter cylinder (30) and the driving motor (40) are on an identical straight line. The device has the advantages that the aim of debubbling can also be achieved without using the anti-bubbling agent during the production process of the printed circuit board, and the production cost of the printed circuit board can be effectively reduced.

Description

Defoaming device

Technical field

The utility model relates to a kind of device that is used for eliminating the bubble that produces in development, the etching work procedure spray liquid in the printed circuit board production process.

Background technology

At present, in the process of producing printed circuit board, in order to guarantee the quality of circuit board, the bubble that elimination produces in the spray liquid in development, etching work procedure, and in spray liquids such as used developer solution, add a certain amount of defoamer, this has not only increased the direct cost of producing, and has also increased because of administering the unnecessary expense that waste water brought that defoamer produces.

The applicant once applied for a kind of device (KR100604338B1) that utilizes the rotation elimination bubble of filter.Though this device can overcome above-mentioned defective to a certain extent, but filter is when the rotation of the inside of spraying box, owing to be subjected to centrifugal forces affect, float over bubble on the liquid level and can be blended into solution once more and be brought in the spray pump and spray on PCB once more, thereby influence the quality of circuit board.

The utility model content

The purpose of this utility model is: provide a kind of and do not use defoamer also can reach the froth breaking purpose in the process of producing printed circuit board, and can effectively reduce the defoaming device of printed circuit board producing cost, raising circuit board quality.

Technical solution of the present utility model is:

Defoaming device, form by filter core, filter cylinder and drive motors, filter core is made revolving body, and be fixed on the end of drive motors rotating shaft, filter cylinder is the cylindrical body of upper end open, drive motors places the top of filter cylinder, and filter core places in the filter cylinder, and filter core, filter cylinder and drive motors three's axle center point-blank.

Technique effect of the present utility model is: it has in the process of producing printed circuit board does not use defoamer can reach the froth breaking purpose yet, and can effectively reduce the advantage of printed circuit board producing cost.

Description of drawings

Fig. 1 is the perspective view of the utility model embodiment 1;

Fig. 2 just cuts open structure chart for the utility model embodiment's 1;

Fig. 3 just cuts open structure chart for the utility model embodiment's 2;

Fig. 4 just cuts open structure chart for the utility model embodiment's 3;

Fig. 5 just cuts open structure chart for the utility model embodiment's 4;

Fig. 6 is the installation diagram of the utility model embodiment 2 defoaming devices;

Fig. 7 is the installation diagram of the utility model embodiment 3 defoaming devices.

Embodiment

Embodiment 1:

As depicted in figs. 1 and 2, defoaming device, form by filter core 41, filter cylinder 30 and drive motors 40, filter core 41 is made revolving body, and be fixed on the end of drive motors 40 rotating shaft 40a, and filter cylinder 30 is the cylindrical body of upper end open, drive motors 40 places the top of filter cylinder 30, filter core 41 places in the filter cylinder 30, and filter core 41, filter cylinder 30 and drive motors 40 threes' axle center point-blank.

On the basis of existing used for printed circuit board sprinkling equipment, use above-mentioned defoaming device, existing sprinkling equipment comprises spraying box 10, filter 11, be used to carry the spray pump 20 of spray liquid, suction pipe 21, feed tube 22 and spray head 23, and run through the conveyer belt 24 that spraying box 10 sidewalls are used for transfer circuit plate 25, the bottom of spraying box 10 is provided with suction pipe 21, suction pipe 21 is communicated with the inlet of spray pump 20, one end of feed tube 22 is communicated with the outlet of spray pump 20, the other end is communicated with spray head 23, spray head 23 is arranged on the top of conveyer belt 24, make solution spraying on the circuit board 25 that moves, spraying box 10 sidewalls are provided with the filter 11 that can outwards discharge in the time of can making the solution that is injected into 10 li of spraying box rise to certain water level, the motor 40 of defoaming device is fixed on spraying box 10 end faces, filter cylinder 30 is fixed on the inner bottom surface of spraying box 10 by support, filter cylinder 30 height suitable for reading are wanted the spray liquid liquid levels that store in a little higher than spraying box 10, so that float over the inside that bubble on the liquid level is injected into filter cylinder 30.

Spray head 23 to circuit board 25, can produce bubble after the solution that splashes down falls back in the spraying box 10 with solution sprayings such as developer solutions, and bubble flows in the filter cylinder 30, destroys through the filter core 41 of rotation and separates with solution, thereby reach the effect of froth breaking.Have only spraying box 10 bottoms not have the solution of bubble to be back to spray head 23 by feed tube 22, form a cyclic process, the incidence of defective products in the production process can not only be narrowed down to minimum like this, and because 41 solution rotating that drive filter cylinder 30 inside of filter core, can not mix together, also just avoided producing in solution inside the problem of bubble because of the rotation of filter core 41 with the solution of spraying box 10.The arrangement relation of each parts can be according to the actual conditions flexible Application in the present embodiment.

Embodiment 2:

As Fig. 3 and shown in Figure 6, as different from Example 1,41 of filter cylinder 30 and filter cores are provided with filter screen 32, and filter screen 32 is a cylinder-like body.Filter cylinder 30 bottoms are provided with liquid outlet 31.Filter cylinder 30 upper ends are provided with drainage lid 33, and drainage lid 33 is for being provided with the ring bodies of inclined plane 33a.At this moment the drainage of flowing through is covered in the inflow filter cylinder 30 that the bubble of 33 inclined plane 33a can be very natural, and bubble is effectively destroyed under the double action of filter screen 32 and filter core 41, and the liquid outlet 31 by filter cylinder 30 bottoms is stored in the spraying box 10 then.Spray pump feed tube 22 is provided with Pressure gauge 50.The arrangement relation of each parts can be according to the actual conditions flexible Application in the present embodiment.

Embodiment 3:

As Fig. 4 and shown in Figure 7, as different from Example 1,41 of filter cylinder 30 and filter cores are provided with filter screen 32, and filter screen 32 is a cylinder-like body.Filter cylinder 30 toe-ins suitable for reading, and and filter screen 32 between form the space of sealing, for the ease of installing, filter cylinder 30 can be made into split type structure up and down as shown in Figure 7.Filter cylinder 30 bottoms also are provided with circular dividing plate 34 in the below of filter core 41 and filter screen 32, and dividing plate 34 is provided with open-work 34a in the position greater than filter screen 32 external diameters.Filter cylinder 30 bottoms are connected with filter cylinder drain pipe 35, and drain pipe 35 can be connected to circulating pump 36, drive the spray liquid circulation with circulating pump 36, improve filter efficiency.Bubble flows in the filter cylinder 30, bubble is effectively destroyed under the double action of filter screen 32 and filter core 41, after bubble is removed, solution is lumped together with the solution of spraying box 10 inside through circulating pump 36, drain pipe 35 then once more by the bottom that the open-work 34a of circular dividing plate 34 flows to filter cylinder 30.Because the front end of drain pipe 35 is set at from suction pipe 21 position farthest, so can control to minimum to the bubbles volume that is injected in the suction pipe 21.Spray pump feed tube 22 is provided with Pressure gauge 50.The arrangement relation of each parts can be according to the actual conditions flexible Application in the present embodiment.

Embodiment 4:

As shown in Figure 5, as different from Example 1, spray pump feed tube 22 is provided with Pressure gauge 50.Spraying box 10 also is provided with the defoamer defoaming device and links to each other, the defoamer defoaming device comprises jet pump 52, defoamer liquid reserve tank 53, jet pipe 54 and controller 51, controller 51 is controlled the injection of defoamer by the pressure signal of detected pressures table 50, can effectively avoid the unnecessary loss of losing efficacy and being brought because of defoaming device like this.

Above embodiment is an explanation of the present invention, does not limit protection scope of the present invention.The improvement that those skilled in the art carries out on this basis all belongs to protection category of the present invention.

Claims

1. defoaming device, it is characterized in that, it is made up of filter core (41), filter cylinder (30) and drive motors (40), filter core (41) is made revolving body, and be fixed on the end of drive motors (40) rotating shaft (40a), and filter cylinder (30) is the cylindrical body of upper end open, drive motors (40) places the top of filter cylinder (30), filter core (41) places in the filter cylinder (30), and filter core (41), filter cylinder (30) and drive motors (40) three's axle center point-blank.

2. defoaming device as claimed in claim 1 is characterized in that, is provided with filter screen (32) between described filter cylinder (30) and filter core (41), and filter screen (32) is a cylinder-like body.

3. defoaming device as claimed in claim 2 is characterized in that, described filter cylinder (30) upper end is provided with drainage lid (33), and drainage lid (33) is for being provided with the ring bodies of inclined plane (33a).

4. as claim 1,2 or 3 described defoaming devices, it is characterized in that described filter cylinder (30) bottom is provided with liquid outlet (31).

5. defoaming device as claimed in claim 2 is characterized in that, described filter cylinder (30) toe-in suitable for reading, and and filter screen (32) between form the space of sealing.

6. defoaming device as claimed in claim 5 is characterized in that, described filter cylinder (30) bottom also is provided with circular dividing plate (34) in the below of filter core (41) and filter screen (32), and dividing plate (34) is provided with open-work (34a) in the position greater than filter screen (32) external diameter.

7. as claim 1,2,5 or 6 described defoaming devices, it is characterized in that described filter cylinder (30) bottom is connected with filter cylinder drain pipe (35).