CN114269075A

CN114269075A - Surface treatment device for producing multilayer printed circuit board

Info

Publication number: CN114269075A
Application number: CN202111556276.4A
Authority: CN
Inventors: 余建平; 熊文涛; 杨强; 徐倩阳
Original assignee: Guangde British Fitow Electronic Co ltd
Current assignee: Guangde British Fitow Electronic Co ltd
Priority date: 2021-12-18
Filing date: 2021-12-18
Publication date: 2022-04-01
Anticipated expiration: 2041-12-18
Also published as: CN114269075B

Abstract

The invention discloses a surface treatment device for production of a multilayer printed circuit board, which comprises a base, wherein mounting frames are symmetrically arranged on two sides of the base, a treatment box is arranged between the mounting frames, the upper end of the side wall of the treatment box is rotatably connected with the mounting frames through a rotating shaft, the bottom of the treatment box is arc-shaped, the lower end of the side wall of the treatment box is connected with a driving mechanism, the top of the treatment box is open, a box cover is arranged at the open position of the top of the treatment box, the box cover is fixedly arranged on an output shaft of an electric push rod, the electric push rod is fixedly arranged on the outer wall of the treatment box, the driving box is fixedly arranged at the top of the box cover, a placing basket is arranged below the box cover, and the placing basket and the driving box are detachably fixed. The invention drives the lower end of the processing box to do pendulum motion along the rotating shaft by the driving rod driven by the first motor, and simultaneously drives the placing basket to move along a circular track in the processing box by the second motor, so that the substrate fixed in the placing basket can be fully contacted with the washing liquid in the processing box, and the processing effect is provided.

Description

Surface treatment device for producing multilayer printed circuit board

Technical Field

The invention relates to the field of circuit board production, in particular to a surface treatment device for producing a multilayer printed circuit board.

Background

Printed circuit boards (also called Printed circuit boards) are providers of electrical connections for electronic components, and are classified into single-sided boards, double-sided boards, four-layer boards, six-layer boards, and other multi-layer boards according to the number of layers of the boards. In the production of the printed circuit board, the copper surface needs to be subjected to surface treatment, and the copper surface is easily oxidized in a general environment, so that Tin can not be coated (poor solderability), so that the copper surface to be coated with Tin can be protected by Tin spraying (HASL), gold melting (ENIG), Silver melting (Immersion Silver), Tin melting (Immersion Tin), Organic Solderability Preservative (OSP) and the like, and the copper surface of the substrate needs to be cleaned and derusted by acid washing, alkali washing and water washing before treatment regardless of the protection mode.

The existing substrate is cleaned in a soaking or spraying mode, the cleaning efficiency is low, the surface treatment is uneven, the situation that partial area oxides are not completely removed can be caused, the follow-up upper protective layer is in a desoldering or false welding state, and the yield of the printed circuit board is influenced.

Disclosure of Invention

To solve the above-mentioned drawbacks of the background art, it is an object of the present invention to provide a surface treatment apparatus for multilayer printed circuit board production.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a surface treatment device for production of multilayer printed circuit board, the on-line screen storage device comprises a base, base bilateral symmetry is equipped with the mounting bracket, be equipped with between the mounting bracket and handle the case, it rotates with the mounting bracket through the pivot to handle case lateral wall upper end and is connected, it is the arc to handle the bottom of the case portion, handle case lateral wall lower extreme and actuating mechanism, it is uncovered to handle the roof portion, it is equipped with the case lid to handle uncovered department in roof portion, case lid fixed mounting is on electric putter's output shaft, electric putter fixed mounting is at handling the case outer wall, case lid top fixed mounting drive case, the case lid below is equipped with places the basket, it can dismantle fixedly with the drive case to place the basket.

Further preferably, actuating mechanism includes the actuating lever, actuating lever one end with handle the case outer wall and rotate and be connected, the actuating lever other end rotates with the eccentric shaft of first drive wheel and is connected, first drive wheel fixed mounting is on the output shaft of first motor, first motor fixed mounting is on the mounting bracket.

Further preferably, the drive box includes the box, the box is inside to run through and be equipped with two drive shafts, the drive shaft rotates with the box to be connected, the box lateral wall is run through at the drive shaft both ends, drive shaft both ends tip fixed mounting second drive wheel, the output shaft meshing of drive shaft gear and second motor, the fixed suspension pole on the eccentric shaft of second drive wheel, it rotates with the eccentric shaft of second drive wheel to hang the pole upper end and be connected, hang the pole lower extreme and run through the case lid, waist type hole has been seted up to the corresponding suspension pole department in case lid surface, fixed connection horizontal pole between the suspension pole lower extreme on the same drive shaft, it can dismantle with connecing the horizontal pole and be connected to place the basket.

Further preferably, place the basket and include the framework, the both ends department that the uncovered department in framework top corresponds the horizontal pole has seted up the draw-in groove, the draw-in groove top is equipped with the spacer pin, the cross-section of spacer pin is L shape, spacer pin one side is rotated with the framework top and is connected, the spacer pin opposite side passes through the bolt and can dismantle with the framework top and be connected, the spacer pin makes the horizontal pole fixed with the draw-in groove cooperation.

Further preferably, the inside upside symmetry of framework is equipped with the grip block, grip block both ends and framework inner wall sliding connection, the spout has been seted up to the corresponding grip block department of framework inner wall, the grip block is close to one side each other and has been seted up a plurality of spacing grooves, the spacing groove sets up along the even equidistance of grip block length direction, the grip block is kept away from one side each other and all is installed the threaded rod, the threaded rod rotates with the grip block to be connected, the grip block one end is kept away from to the threaded rod and is run through the framework, threaded rod and framework screw-thread fit, the threaded rod runs through framework one end fixed mounting carousel.

The invention has the beneficial effects that:

the invention drives the lower end of the processing box to do pendulum motion along the rotating shaft by the driving rod driven by the first motor, and simultaneously drives the placing basket to move along a circular track in the processing box by the second motor, so that the substrate fixed in the placing basket can be fully contacted with the washing liquid in the processing box, and the processing effect is provided.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the drive mechanism of the present invention;

FIG. 3 is a schematic view of the construction of the cover of the present invention;

FIG. 4 is a cross-sectional view of the drive housing of the present invention;

FIG. 5 is a schematic view of the present invention showing the construction of the basket;

fig. 6 is an enlarged view of the invention at position a of fig. 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

As shown in fig. 1-6, a surface treatment device for production of multilayer printed circuit board, including base 1, base 1 bilateral symmetry is equipped with mounting bracket 2, be equipped with between mounting bracket 2 and handle case 3, handle 3 lateral wall upper ends of case and be connected with mounting bracket 2 through the pivot, handle 3 bottoms of case and be the arc, handle 3 lateral wall lower extremes of case and actuating mechanism 4, handle 3 tops of case and be uncovered, handle 3 top uncovered department of case and be equipped with case lid 5, case lid 5 fixed mounting is on electric putter 6's output shaft, electric putter 6 fixed mounting is at handling 8 outer walls of case, case lid 5 top fixed mounting drive case 8, case lid 5 below is equipped with places basket 9, it can dismantle fixedly with drive case 8 to place basket 9.

Actuating mechanism 4 includes actuating lever 10, and actuating lever 10 one end is rotated with handling 3 outer walls of case and is connected, and the actuating lever 10 other end rotates with the eccentric shaft of first drive wheel 11 to be connected, and first drive wheel 11 fixed mounting is on the output shaft of first motor 12, and first motor 12 fixed mounting is on mounting bracket 2.

The driving box 8 comprises a box body 13, two driving shafts 14 are arranged inside the box body 13 in a penetrating mode, the driving shafts 14 are rotatably connected with the box body 13, the side walls of the box body 13 are arranged at the two ends of each driving shaft 14 in a penetrating mode, second driving wheels 15 are fixedly installed at the two ends of each driving shaft 14 in a penetrating mode, gears of the driving shafts 14 are meshed with output shafts of second motors 16, suspension rods 17 are fixed on eccentric shafts of the second driving wheels 15, the upper ends of the suspension rods 17 are rotatably connected with the eccentric shafts of the second driving wheels 15, the lower ends of the suspension rods 17 penetrate through a box cover 5, waist-shaped holes are formed in the surface of the box cover 5 corresponding to the suspension rods 17, cross rods 18 are fixedly connected between the lower ends of the suspension rods 17 on the same driving shaft 14, and the placing basket 9 is detachably connected with the cross rods 18.

The placing basket 9 comprises a frame body 19, clamping grooves 20 are formed in the positions, corresponding to the two ends of the cross rod 18, of an opening in the top of the frame body 19, a limiting pin 21 is arranged above the clamping grooves 20, the cross section of the limiting pin 21 is L-shaped, one side of the limiting pin 21 is rotatably connected with the top of the frame body 19, the other side of the limiting pin 21 is detachably connected with the top of the frame body 19 through a bolt, and the cross rod 18 is fixed through the matching of the limiting pin 21 and the clamping grooves 20.

19 inside upside symmetry of framework is equipped with grip block 22, grip block 22 both ends and 19 inner wall sliding connection of framework, the spout 23 has been seted up to 19 inner wall of framework corresponding grip block 22 departments, grip block 22 has been close to one side each other and has been seted up a plurality of spacing grooves 24, spacing groove 24 sets up along the even equidistance of grip block 22 length direction, grip block 22 keeps away from one side each other and all installs threaded rod 25, threaded rod 25 rotates with grip block 22 to be connected, grip block 22 one end is kept away from to threaded rod 25 and runs through framework 19, threaded

rod

25 and 19 screw-thread fit of framework, threaded rod 25 runs through 19 one end fixed mounting carousel 26 of framework.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.

Claims

1. The surface treatment device for the production of the multilayer printed circuit board is characterized by comprising a base (1), wherein mounting frames (2) are symmetrically arranged on two sides of the base (1), a treatment box (3) is arranged between the mounting frames (2), the upper end of the side wall of the treatment box (3) is rotatably connected with the mounting frames (2) through a rotating shaft, the bottom of the treatment box (3) is arc-shaped, the lower end of the side wall of the treatment box (3) is connected with a driving mechanism (4), the top of the treatment box (3) is open, a box cover (5) is arranged at the open top of the treatment box (3), the box cover (5) is fixedly arranged on an output shaft of an electric push rod (6), the electric push rod (6) is fixedly arranged on the outer wall of the treatment box (8), a driving box (8) is fixedly arranged at the top of the box cover (5), a placing basket (9) is arranged below the box cover (5), the placing basket (9) and the driving box (8) are detachably fixed.

2. The surface treatment device for the production of multilayer printed circuit boards according to claim 1, wherein the driving mechanism (4) comprises a driving rod (10), one end of the driving rod (10) is rotatably connected with the outer wall of the treatment box (3), the other end of the driving rod (10) is rotatably connected with an eccentric shaft of a first driving wheel (11), the first driving wheel (11) is fixedly arranged on an output shaft of a first motor (12), and the first motor (12) is fixedly arranged on the mounting frame (2).

3. The surface treatment device for the production of multilayer printed circuit board according to claim 1, wherein the driving box (8) comprises a box body (13), two driving shafts (14) are arranged inside the box body (13) in a penetrating manner, the driving shafts (14) are rotatably connected with the box body (13), both ends of the driving shafts (14) penetrate through the side wall of the box body (13), a second driving wheel (15) is fixedly arranged at both ends of the driving shafts (14), the gear of the driving shafts (14) is engaged with the output shaft of a second motor (16), a suspension rod (17) is fixed on the eccentric shaft of the second driving wheel (15), the upper end of the suspension rod (17) is rotatably connected with the eccentric shaft of the second driving wheel (15), the lower end of the suspension rod (17) penetrates through the box cover (5), and a kidney-shaped hole is arranged on the surface of the box cover (5) corresponding to the suspension rod (17), the lower ends of the suspension rods (17) on the same driving shaft (14) are fixedly connected with a cross rod (18), and the placing basket (9) is detachably connected with the cross rod (18).

4. The surface treatment device for the production of the multilayer printed circuit board according to claim 3, wherein the placement basket (9) comprises a frame body (19), clamping grooves (20) are formed in the positions, corresponding to the two ends of the cross rod (18), of an opening in the top of the frame body (19), a limiting pin (21) is arranged above the clamping grooves (20), the cross section of the limiting pin (21) is L-shaped, one side of the limiting pin (21) is rotatably connected with the top of the frame body (19), the other side of the limiting pin (21) is detachably connected with the top of the frame body (19) through a bolt, and the cross rod (18) is fixed through the matching of the limiting pin (21) and the clamping grooves (20).

5. The surface treatment apparatus for multilayer printed circuit board production according to claim 4, it is characterized in that the upper side inside the frame body (19) is symmetrically provided with clamping blocks (22), the two ends of the clamping block (22) are connected with the inner wall of the frame body (19) in a sliding way, a sliding groove (23) is arranged on the inner wall of the frame body (19) corresponding to the clamping block (22), a plurality of limiting grooves (24) are arranged on one side of the clamping block (22) close to each other, the limiting grooves (24) are uniformly arranged at equal intervals along the length direction of the clamping block (22), threaded rods (25) are arranged on the sides, far away from each other, of the clamping blocks (22), the threaded rod (25) is rotationally connected with the clamping block (22), one end of the threaded rod (25) far away from the clamping block (22) penetrates through the frame body (19), threaded rod (25) and framework (19) screw-thread fit, threaded rod (25) run through framework (19) one end fixed mounting carousel (26).