CN202160344U

CN202160344U - Wet film coating device for printed wiring board blind slot

Info

Publication number: CN202160344U
Application number: CN2011202626558U
Authority: CN
Inventors: 陈玲
Original assignee: GALAXY CIRCUIT CO Ltd
Current assignee: GALAXY CIRCUIT CO Ltd
Priority date: 2011-07-22
Filing date: 2011-07-22
Publication date: 2012-03-07
Anticipated expiration: 2021-07-22

Abstract

The utility model discloses a wet film coating device for a printed wiring board blind slot, which comprises a silk-screen platform. A blind slot circuit board is arranged on the surface of the silk-screen platform; a windowing screen printing plate is arranged above the blind slot circuit board; and a spray gun is arranged above the windowing screen printing plate. As the blind slot circuit board is arranged on the surface of the silk-screen platform and the windowing screen printing plate is arranged above the blind slot circuit board, the position of a window on the windowing screen printing plate is matched with that of a blind slot hole in the blind slot circuit board; while other positions on the blind slot circuit board except the blind slot hole are shielded and covered by the windowing screen printing plate; then the position of the window of the windowing screen printing plate is sprayed through the spray gun, so that the blind slot wet film can be uniformly coated. Compared with the prior art, the problems that wet film silk-screen technology and dry film attaching technology can not satisfy the effective coating in the blind slot position of a PCB (Printed Circuit Board) and have large processing difficulty are solved by the wet film coating device for the printed wiring board blind slot, which comprises a silk-screen platform. Moreover, the film thickness and coating precision of the printed wiring board blind slot hole can be better controlled; in addition, the product quality and production efficiency are improved.

Description

The blind groove of a kind of printed wiring board position wet film apparatus for coating

Technical field

The utility model relates to the blind groove of a kind of printed wiring board position wet film apparatus for coating.

Background technology

Development along with the PCB mounting technology; And the lines of PCB and distance between centers of tracks is more and more little, precision and density requirements have also improved; And traditional dry film attaches technology and in PCB figure transfer process, can't improve owing to dry film resolution, can not satisfy the needs that special PCB produces.

Though wet film silk-screen technology can address the above problem, its production cycle is long, coating thickness is uneven, the back plate face pinprick and foreign material are too many, the difficulty of developing in the hole of filming, and also causes the subsequent production problem of wet film more, the process control difficulty of getting up.

Yet attaching technology, above-mentioned wet film silk-screen technology and dry film all can't satisfy the effective coating in the blind groove of the pcb board position; Difficulty of processing is big; When carrying out etching, adopt by conventional blind frid the dry film sealing of hole to protect usually;, blind groove size adopt the hardened coating wet film to protect when surpassing dry film sealing of hole ability usually; Even if yet adopt pure manual wet film coating also can have problems such as thickness is uneven, the bad control of coating precision, usually cause plate to get into height occurring after the etching scrapping, seriously restrict quality-improving, reduced production efficiency.

The utility model content

For this reason, the purpose of the utility model is to provide the blind groove of a kind of printed wiring board position wet film apparatus for coating, can't satisfy the effective coating in the blind groove of the pcb board position, the problem that difficulty of processing is big to solve wet film silk-screen technology and dry film attaching technology.

For realizing above-mentioned purpose, the utility model mainly adopts following technical scheme:

The blind groove of a kind of printed wiring board position wet film apparatus for coating; Comprise silk-screen platform (1); The silk-screen table top (2) of said silk-screen platform (1) is provided with a blind groove wiring board (3), and this blind groove wiring board (3) top is provided with the half tone (5) of windowing, and the said half tone of windowing (5) top is provided with spray gun (7).

Wherein said blind groove wiring board (3) is provided with a blind slotted eye (4), and the half tone of windowing (5) is provided with a window (6) corresponding with this blind slotted eye (4) position.

The utility model is provided with blind groove wiring board on the silk-screen table top; And the half tone of windowing is set on blind groove wiring board; Make the window on the half tone of windowing corresponding with the blind slotted eye position on the blind groove wiring board; Covering is then blocked through the half tone of windowing in other position on the blind groove wiring board except that blind slotted eye, sprays through spray gun the window's position to the half tone of windowing afterwards, to realize the even coating of blind groove position wet film.Compared with prior art; The utility model has solved wet film silk-screen technology and dry film attaching technology can't satisfy the effective coating in the blind groove of the pcb board position; The problem that difficulty of processing is big can be good at the thickness of the blind slotted eye of control circuit board and is coated with precision, has promoted the quality and the production efficiency of product.

Description of drawings

Fig. 1 is positioned at the structural representation of silk-screen table top for the blind groove wiring board of the utility model.

Fig. 2 is the structural representation of the utility model.

Identifier declaration among the figure: silk-screen platform 1, silk-screen table top 2, blind groove wiring board 3, blind slotted eye 4, the half tone 5 of windowing, window 6, spray gun 7.

Embodiment

For setting forth the thought and the purpose of the utility model, will combine accompanying drawing and specific embodiment that the utility model is done further explanation below.

See also shown in Figure 1ly, Fig. 1 is positioned at the structural representation of silk-screen table top for the blind groove wiring board of the utility model.Wherein the utility model provides the blind groove of a kind of printed wiring board position wet film apparatus for coating; Being mainly used in to solve adopts wet film silk-screen technology and dry film attaching technology can't satisfy the effective coating in the blind groove of the pcb board position at present; The problem that difficulty of processing is big, and solve pure manual wet film coating and have problems such as thickness is uneven, the bad control of coating precision.，

Wherein the blind groove of this printed wiring board position wet film apparatus for coating includes silk-screen platform 1; The silk-screen table top 2 of said silk-screen platform 1 is provided with a blind groove wiring board 3; This blind groove wiring board 3 is provided with a blind slotted eye 4; This blind slotted eye 4 does not penetrate blind groove wiring board 3, and blind slotted eye 4 bottoms are the copper layer, needs with wet film layer to protect.

As shown in Figure 2, Fig. 2 is the structural representation of the utility model.Wherein on blind groove wiring board 3, also be provided with the half tone 5 of windowing; This half tone 5 of windowing is the aluminium sheet or the silk-screen half tone of windowing of windowing; It is provided with a window 6; Blind slotted eye 4 corresponding coincidences on the position of said window 6 and the blind groove wiring board 3, and then block blind groove wiring board 3 other position of the half tone 5 of windowing.

On the half tone 5 of windowing, also be provided with a spray gun 7; Said spray gun 7 is the high pressure painting rifle, and when the corresponding contraposition in the position of blind slotted eye 4 and window 6, spray it with the high pressure painting rifle this moment; So that the copper layer of blind slotted eye 4 inner bottom parts carries out effectively evenly applying; When carrying out subsequent etch technology, can plate not occur because of thickness is uneven and not cross the phenomenon that erosion is scrapped, enhance productivity and the purpose of production quality to reach.

More than be that the blind groove of a kind of printed wiring board position wet film apparatus for coating that the utility model is provided has carried out detailed introduction; Used concrete example among this paper the structural principle and the execution mode of the utility model are set forth, above embodiment just is used to help to understand the method and the core concept thereof of the utility model; Simultaneously, for one of ordinary skill in the art, according to the thought of the utility model, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.

Claims

1. the blind groove of printed wiring board position wet film apparatus for coating; Comprise silk-screen platform (1); The silk-screen table top (2) that it is characterized in that said silk-screen platform (1) is provided with a blind groove wiring board (3); This blind groove wiring board (3) top is provided with the half tone (5) of windowing, and the said half tone of windowing (5) top is provided with spray gun (7).

2. the blind groove of printed wiring board according to claim 1 position wet film apparatus for coating is characterized in that said blind groove wiring board (3) is provided with a blind slotted eye (4), and the half tone of windowing (5) is provided with a window (6) corresponding with this blind slotted eye (4) position.