CN218071956U

CN218071956U - Precise HDI circuit board etching device

Info

Publication number: CN218071956U
Application number: CN202221913262.3U
Authority: CN
Inventors: 黎荣; 朱冰; 朱小娟
Original assignee: Jiangxi Yongzhao Electronics Co ltd
Current assignee: Jiangxi Yongzhao Electronics Co ltd
Priority date: 2022-07-22
Filing date: 2022-07-22
Publication date: 2022-12-16
Anticipated expiration: 2032-07-22

Abstract

The utility model discloses a HDI circuit board precision etching device, which comprises a spraying box and a liquid medicine box, wherein the top surface of the spraying box is welded with a bracket, and the top surface of the bracket is tightly provided with an air blower; the utility model discloses in, open the hydraulic stem through control panel and extend, the one end that makes the hydraulic stem promotes the backup pad and moves down, and then the backup pad drives the etching board under the effect of bracing and moves down in step, make the etching board stretch into between two showers of spray box, through opening the water pump, make etching liquid medicine have liquid medicine case and catheter to fill to two shunt tubes, again by the leading-in shower that corresponds of two shunt tubes, until etching liquid medicine by the nozzle convection formula blowout of two shower facing each other installations, the scope nature of circuit board sprays the etching on the realization etching board, and through opening the air-blower, make the air-blower blow off the cover of blowing that the air set up by the leading-in slope of two pipelines, realize arranging again of circuit board surface etching liquid medicine, guarantee the homogeneity of etching.

Description

Precise HDI circuit board etching device

Technical Field

The utility model relates to a circuit board manufacturing technical field especially relates to a precise etching device of HDI circuit board.

Background

High Density Interconnect (HDI) manufacturing is one of the fastest growing areas in the printed circuit board industry. From the first 32-bit computer introduced by hewlett-packard in 1985, to today's large client servers using 36 sequentially laminated multilayer printed boards and stacked micro vias, HDI/micro via technology is undoubtedly a future PCB architecture. Larger ASICs and FPGAs with smaller device pitch, more I/O pins and embedded passive devices, with shorter and shorter rise times and higher frequencies, all require smaller PCB feature sizes, which drives a strong demand for HDI/micro vias.

At present, most circuits of circuit boards are manufactured in a chemical liquid medicine etching mode, an etching machine used for etching generally etches the circuits of the circuit boards by using etching liquid medicine in a spraying mode, and an existing etching device is often difficult to quickly cover the etching surface of the circuit board in the circuit board spraying and etching process, so that the etching degree of the circuit board is uneven, and the etching sufficiency and precision are influenced.

Therefore, the HDI circuit board precision etching device has the advantages of range-type spray etching, and further solves the problems in the background art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a HDI circuit board precision etching device.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a precise etching device of HDI circuit board, is including spraying case and liquid medicine case, the top surface welding that sprays the case has the support, and the top surface fastening of support installs the air-blower, the air outlet department intercommunication of air-blower has the pipeline, and the one end of pipeline runs through the support intercommunication and have the blower cover, the intermediate position fastening mounting of support bottom surface has the hydraulic stem, and the one end fixedly connected with backup pad of hydraulic stem, the side welding of backup pad has the bracing, and the one end welding of bracing has the etching board, the rectangle mouth has been seted up on the surface of etching the board, and the rectangle mouth inboard seted up has the edge groove, the welding of spraying case one side has the liquid medicine case, and the liquid medicine incasement inserts and installs the catheter, the surface mounting of catheter has the water pump, and the one end of catheter has the shunt tubes through three way junction, the shunt tubes runs through spraying case intercommunication has the shower, and the surface equidistance of shower tube installs a plurality of shower nozzles.

As a further description of the above technical solution: the inside welding of rectangle mouth has cut the type pole, and sets up a plurality of waterlogging caused by excessive rainfall recesses in the marginal inslot on the rectangle mouth.

As a further description of the above technical solution: guide rods are welded at four corners of the top surface of the supporting plate, and one ends of the guide rods are connected with the support in an inserting mode.

As a further description of the above technical solution: the shower is provided with two, and the shower nozzle is all installed to the face in opposite directions of two showers.

As a further description of the above technical solution: the side of the lower part of the spraying box is provided with a liquid discharging nozzle, a valve is installed on the liquid discharging nozzle, and a short liquid injection pipe is welded on the side of the liquid medicine box.

As a further description of the above technical solution: the outer wall fixed mounting of spraying case has control panel, and control panel's output respectively with hydraulic stem, air-blower, water pump electric connection.

As a further description of the above technical solution: the two groups of the air blowing covers and the two groups of the pipelines are arranged and are symmetrical about a vertical center line of the support.

The utility model discloses following beneficial effect has:

the utility model discloses in, open the hydraulic stem through control panel and extend, make the one end of hydraulic stem promote the backup pad to move down, and then the backup pad drives the etching board under the effect of bracing and moves down in step, make the etching board stretch into between two shower pipes of shower tank, through opening the water pump, make etching liquid medicine have liquid medicine case and catheter to pour into to two shunt tubes, again by leading-in corresponding shower pipe of two shunt tubes, until etching liquid medicine by two shower pipes facial features mounted's shower nozzle to STREAMING blowout, realize the scope nature spray etching of circuit board on the etching board, and through opening the air-blower, make the air-blower blow out the air cover that bloies that the slope set up is led in to by two pipelines, realize the rearrangement of circuit board surface etching liquid medicine, guarantee the homogeneity of etching, be favorable to the precision etching of circuit board;

the utility model discloses in, through settling the circuit board in the rectangle mouth of etching board, make among the edge groove that the inboard rectangle mouth of circuit board embedding was seted up, and the bottom surface of circuit board contacts in the inboard welded shearing pole of rectangle mouth, when the etching, the etching liquid medicine that sprays flows in edge groove, drop into the incasement portion that sprays by the interior waterlogging caused by excessive rainfall recess and the rectangle mouth of seting up of edge inslot again, realize the derivation of etching liquid medicine and etching residue, can enough reduce the condition of the excessive etching circuit board of etching liquid medicine, also can guarantee the cleanliness factor of circuit board etching face, be favorable to the high-efficient etching of circuit board.

Drawings

FIG. 1 is a schematic structural diagram of an HDI circuit board precision etching device of the present invention;

FIG. 2 is a top view of a spraying box of the HDI circuit board precision etching device of the present invention;

FIG. 3 is a schematic diagram of the etching board structure of the HDI circuit board precision etching apparatus of the present invention.

Illustration of the drawings:

1. a spray box; 2. a control panel; 3. a liquid medicine tank; 4. a catheter; 5. a water pump; 6. a shunt tube; 7. a support; 8. a hydraulic rod; 9. a blower; 10. a guide bar; 11. a support plate; 12. bracing; 13. a blower housing; 14. etching the plate; 15. a shower pipe; 16. a spray head; 17. a liquid discharge nozzle; 18. a rectangular opening; 19. an edge groove; 20. shearing a profile rod; 21. and (4) draining grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

According to the utility model discloses an embodiment provides a precise etching device of HDI circuit board.

Referring now to the drawings and the detailed description, as shown in fig. 1-3, an HDI circuit board precision etching device according to an embodiment of the present invention comprises a spraying box 1 and a liquid medicine box 3, wherein a bracket 7 is welded on the top surface of the spraying box 1, an air blower 9 is tightly mounted on the top surface of the bracket 7, a pipeline is communicated with an air outlet of the air blower 9, one end of the pipeline penetrates through the bracket 7 and is communicated with a blowing cover 13, a hydraulic rod 8 is tightly mounted at the middle position of the bottom surface of the bracket 7, a supporting plate 11 is fixedly connected with one end of the hydraulic rod 8, an inclined strut 12 is welded on the side surface of the supporting plate 11, an etching plate 14 is welded on one end of the inclined strut 12, a rectangular opening 18 is formed on the surface of the etching plate 14, a rim groove 19 is formed on the inner side of the rectangular opening 18, a liquid medicine box 3 is welded on one side of the spraying box 1, and a liquid catheter 4 is inserted and mounted in the liquid medicine box 3, the surface of the liquid guide pipe 4 is provided with a water pump 5, one end of the liquid guide pipe 4 is connected with a shunt pipe 6 through a tee joint, the shunt pipe 6 penetrates through the spray box 1 and is communicated with a spray pipe 15, the surface of the spray pipe 15 is equidistantly provided with a plurality of spray heads 16, the hydraulic rod 8 is opened to extend through the control panel 2, one end of the hydraulic rod 8 pushes the support plate 11 to move downwards, the support plate 11 drives the etching plate 14 to move downwards synchronously under the action of the inclined strut 12, the etching plate 14 extends into the space between the two spray pipes 15 of the spray box 1, the water pump 5 is opened to enable the etching liquid medicine water tank 3 and the liquid guide pipe 4 to be filled into the two shunt pipes 6, then the etching liquid medicine is guided into the corresponding spray pipes 15 through the two shunt pipes 6 until the etching liquid medicine is ejected in a convection mode through the spray heads 16 which are arranged on the opposite surfaces of the two spray pipes 15, and the range-based spray etching of a circuit board on the etching plate 14 is realized, by starting the blower 9, the blower 9 is prompted to guide air into the obliquely arranged air blowing cover 13 from the two pipelines to blow out, so that the re-arrangement of the etching liquid medicine on the surface of the circuit board is realized, and the etching uniformity is ensured;

in one embodiment, the inboard welding of rectangle mouth 18 has cut type pole 20, and set up a plurality of waterlogging caused by excessive rainfall recesses 21 in the marginal groove 19 on the rectangle mouth 18, when spraying the etching, the etching liquid medicine that sprays flows into marginal groove 19, again by dribbling recess 21 and the rectangle mouth 18 of seting up in the marginal groove 19 fall into spray tank 1 inside, realize the derivation of etching liquid medicine and etching residue, can enough reduce the condition that the etching liquid medicine excessively etches the circuit board, also can guarantee the cleanliness factor of circuit board etching face, be favorable to the high-efficient etching of circuit board, wherein cut type pole 20 can prevent that the circuit board from dropping.

In one embodiment, the guide rods 10 are welded at four corners of the top surface of the support plate 11, and one end of each guide rod 10 is inserted into the support 7, so that the guide rods 10 are inserted into the support 7, thereby increasing the lifting stability of the etching plate 14.

In one embodiment, two showers 15 are provided, and the facing surfaces of both showers 15 are fitted with spray heads 16, by means of which showers 15 the spray range can be increased.

In one embodiment, the side of the lower part of the spraying box 1 is provided with a liquid discharge nozzle 17, a valve is arranged on the liquid discharge nozzle 17, a liquid injection short pipe is welded on the side of the liquid medicine box 3, waste liquid is convenient to discharge through the liquid discharge nozzle 17, and etching liquid medicine is convenient to supplement through the liquid injection short pipe.

In one embodiment, the control panel 2 is fixedly installed on the outer wall surface of the spraying box 1, the output end of the control panel 2 is electrically connected with the hydraulic rod 8, the air blower 9 and the water pump 5 respectively, and a control circuit of the control panel 2 can be realized through simple programming of technicians in the field, which belongs to the common general knowledge in the field, and the control panel 2 is only used without modification, so that the control mode and the circuit connection are not described in detail, wherein the control panel 2 is connected with an external power supply through a wire, and the power supply is convenient.

In one embodiment, the two sets of blowing hoods 13 and the two sets of pipes are arranged, and the two sets of blowing hoods 13 and the two sets of pipes are symmetrical about the vertical center line of the support 7, so that the etching liquid medicine sprayed on the surface of the circuit board can be guided by blowing through the two sets of blowing hoods 13 and the two sets of pipes, and the uniformity of the etching liquid medicine coverage is increased.

The working principle is as follows:

when in use, the device is moved to a proper position, the power supply is switched on, the etching liquid medicine in the liquid medicine tank 3 is ensured to be in a sufficient state, the circuit board is arranged in the rectangular opening 18 of the etching plate 14, the circuit board is enabled to be embedded into the edge groove 19 arranged on the inner side of the rectangular opening 18, the bottom surface of the circuit board is contacted with the shear rod 20 welded on the inner side of the rectangular opening 18, the hydraulic rod 8 is started to extend through the control panel 2, one end of the hydraulic rod 8 is enabled to push the support plate 11 to move downwards, the support plate 11 drives the etching plate 14 to synchronously move downwards under the action of the inclined strut 12, the etching plate 14 is enabled to extend into the space between the two spray pipes 15 of the spray tank 1, the etching liquid medicine tank 3 and the liquid guide pipe 4 are enabled to be filled into the two shunt pipes 6 through the water pump 5 being started, and then the etching liquid medicine is guided into the corresponding spray pipes 15 through the two shunt pipes 6, until etching liquid medicine is ejected by the two spray pipes 15 in a convection mode, the circuit board on the etching board 14 is subjected to spray etching within a range, the blower 9 is started to enable the blower 9 to blow air out from the two pipes into the obliquely arranged blowing hood 13, the etching liquid medicine on the surface of the circuit board is rearranged, the uniformity of etching is guaranteed, when the spray etching is carried out, the sprayed etching liquid medicine flows into the edge groove 19, and then the water draining groove 21 and the rectangular opening 18 which are formed in the edge groove 19 fall into the spray box 1, the guiding-out of the etching liquid medicine and etching residues is realized, the condition that the circuit board is excessively etched by the etching liquid medicine can be reduced, the cleanliness of the etched surface of the circuit board can be guaranteed, and the efficient etching of the circuit board is facilitated.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a precise etching device of HDI circuit board, includes sprays case (1) and liquid medicine case (3), its characterized in that: the utility model discloses a spray box, including spray box (1), spray box, support (7), air-blower (9), the air outlet department intercommunication of air-blower (9) has the pipeline, and the one end of pipeline runs through support (7) intercommunication and have blower housing (13), the intermediate position fastening mounting of support (7) bottom surface has hydraulic stem (8), and the one end fixedly connected with backup pad (11) of hydraulic stem (8), the side welding of backup pad (11) has bracing (12), and the one end welding of bracing (12) has etching plate (14), rectangle mouth (18) have been seted up on the surface of etching plate (14), and rectangle mouth (18) inboard has seted up marginal groove (19), spray box (1) one side welding has medicine water tank (3), and inserts in medicine water tank (3) and install catheter (4), the surface mounting of catheter (4) has water pump (5), and the one end of catheter (4) has shunt tubes (6) through tee bend connection, spray box (6) run through spray box (1) intercommunication has spray tube (15), and spray tube (15) the surface mounting has a plurality of equidistance shower nozzle (16).

2. The HDI circuit board precision etching device of claim 1, characterized in that: the welding of rectangle mouth (18) inboard has cut type pole (20), and has seted up a plurality of waterlogging caused by excessive rainfall recesses (21) in marginal groove (19) on rectangle mouth (18).

3. The HDI circuit board precision etching device of claim 1, characterized in that: guide rods (10) are welded at four corners of the top surface of the supporting plate (11), and one ends of the guide rods (10) are connected with the support (7) in a penetrating mode.

4. The HDI circuit board precision etching device of claim 1, characterized in that: the spraying pipes (15) are provided with two spraying pipes, and the opposite surfaces of the two spraying pipes (15) are provided with spray heads (16).

5. The HDI circuit board precision etching device of claim 1, characterized in that: the side of the lower part of the spray box (1) is provided with a liquid discharge nozzle (17), a valve is installed on the liquid discharge nozzle (17), and a short liquid injection pipe is welded on the side of the liquid medicine box (3).

6. The HDI circuit board precision etching device of claim 1, characterized in that: the outer wall surface of the spraying box (1) is fixedly provided with a control panel (2), and the output end of the control panel (2) is respectively and electrically connected with the hydraulic rod (8), the air blower (9) and the water pump (5).

7. The HDI circuit board precision etching device of claim 1, characterized in that: the two groups of the air blowing covers (13) and the two groups of the pipelines are arranged, and the two groups of the air blowing covers (13) and the two groups of the pipelines are symmetrical about a vertical center line of the support (7).