CN217160127U

CN217160127U - Device of high-efficient stoving circuit board

Info

Publication number: CN217160127U
Application number: CN202220029914.0U
Authority: CN
Inventors: 杨浩文
Original assignee: SICHUAN SHENBEI CIRCUIT TECHNOLOGY CO LTD
Current assignee: SICHUAN SHENBEI CIRCUIT TECHNOLOGY CO LTD
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-08-09
Anticipated expiration: 2032-01-07

Abstract

The utility model discloses a device of high-efficient stoving circuit board, it includes workstation (1), turn right from a left side on the mesa of workstation (1) and set firmly hot-blast output device (2) and backup pad (3) in order, install vibrating motor (4) on the left end face of backup pad (3), be provided with a plurality of installation mechanisms that are used for installing the circuit board on the right-hand member face of backup pad (3) and along its longitudinal direction on, installation mechanism includes that two set firmly reference column (5) on backup pad (3) right-hand member face, and two reference columns (5) are in on same perpendicular, just the right side that is located backup pad (3) on the mesa of workstation (1) is provided with a plurality of circuit board stop gear (6) corresponding with installation mechanism, and circuit board stop gear (6) are including feeding cylinder (7) and limiting plate (8). The utility model has the advantages that: compact structure, improvement circuit board drying efficiency, stoving more thorough, degree of automation is high.

Description

Device of high-efficient stoving circuit board

Technical Field

The utility model relates to a technical field that the circuit board was dried, especially a device of high-efficient stoving circuit board.

Background

The electronic component assemblies include circuit boards, double-sided circuit boards, IC carrier boards, multilayer printed circuit boards, etc., which are core components of the controller and can play an important role. The circuit boards are arranged in the control parts of household appliances (such as a battery furnace, a water heater, an electric cooker and the like), and the circuit boards ensure the smooth operation of the household appliances. The production of the circuit board comprises an electroplating process, an etching process, a cleaning process and a drying process, wherein the electroplating process aims at electroplating a copper layer on two large end surfaces of the circuit board; the etching process is to convey the circuit board to the etching process after the copper layer is formed so as to form a circuit on the copper layer; the cleaning procedure aims at cleaning off the etching solution attached to the surface of the circuit board after the circuit is formed by etching; the drying process aims to thoroughly dry residual moisture attached to the two large end faces of the circuit board, so that a qualified finished circuit board is finally obtained.

In the drying process, workers carry out drying operation steps of flatly placing the bottom surface of the cleaned circuit board in the drying tunnel, supporting the bottom surface of the circuit board by using the cushion block, then drying moisture attached to the surface of the circuit board by heat in the drying tunnel after the door of the drying tunnel is closed, and taking the circuit board out of the drying tunnel after drying for a period of time, so that the drying operation of the circuit board is realized. However, although this drying method using drying tunnel can dry the moisture attached to the two large end surfaces of the circuit board, the following technical drawbacks still exist: 1. it takes a long time to thoroughly dry the moisture attached to the two large end faces of the circuit board because the circuit board is in a spreading state and the moisture does not flow, thereby greatly reducing the drying efficiency of the circuit board. 2. One large end face of the circuit board is supported by the cushion blocks, so that the contact area between the cushion blocks and the bottom face of the circuit board is not dried, namely, the contact area still contains undried moisture, and the technical defect of incomplete drying exists.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide a compact structure, improve circuit board drying efficiency, dry more thoroughly, the high-efficient device of drying circuit board that degree of automation is high.

The purpose of the utility model is realized through the following technical scheme: a device for efficiently drying a circuit board comprises a workbench, a hot air output device and a support plate are sequentially and fixedly arranged on a table board of the workbench from left to right, a vibration motor is installed on the left end face of the support plate, a plurality of installation mechanisms for installing the circuit board are arranged on the right end face of the support plate and along the longitudinal direction of the support plate, each installation mechanism comprises two positioning columns fixedly arranged on the right end face of the support plate, the two positioning columns are positioned on the same vertical plane, a plurality of circuit board limiting mechanisms corresponding to the installation mechanisms are arranged on the table board of the workbench and positioned on the right side of the support plate, each circuit board limiting mechanism comprises a feeding cylinder and a limiting plate, a cylinder barrel of the feeding cylinder is fixedly arranged on the table board of the workbench, an L plate is arranged on a piston rod of the feeding cylinder, a vertical plate of the L plate is fixedly arranged on the action end of the piston rod, and an installation plate is fixedly arranged on a horizontal plate of the L plate, the mounting panel goes up to slide to run through and has had two guide bars, has set firmly the limiting plate between the left extension end of two guide bars, and the limiting plate sets up with installation mechanism opposition, and the cover is equipped with the spring on the guide bar, and the one end of spring sets firmly on the right-hand member face of limiting plate, and the other end sets firmly on the left end face of mounting panel.

The distance between two adjacent mounting mechanisms is equal.

The hot air output device comprises a blower, an air heater and a rack which are fixedly arranged on the table top of the workbench, the rack is arranged on the left side of the supporting plate, an air outlet bin is welded at the upper end of the rack, a disc body is welded at the bottom of the air outlet bin, the inner cavity of the disc body is communicated with the air outlet bin, the disc body is arranged on the right side of the supporting plate, and a plurality of air outlet holes are formed in the bottom surface of the disc body; the air blower is connected with the air heater, and the outlet end of the air heater is connected with the top port of the air outlet bin.

And a pipeline is connected between the outlet end of the air heater and the top port of the air outlet bin.

The air outlets are uniformly distributed on the tray body.

The bottom of workstation has set firmly the funnel, and the funnel sets up under the disk body, is provided with the collecting vat that supports in subaerial under the funnel.

The device also comprises a controller which is electrically connected with the blower, the vibration motor and the electromagnetic valve of the feeding cylinder.

The utility model has the advantages of it is following: compact structure, improvement circuit board drying efficiency, stoving more thorough, degree of automation is high.

Drawings

FIG. 1 is a schematic illustration of drilling two blind holes in a circuit board;

FIG. 2 is a left side view of FIG. 1;

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

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a schematic view of the circuit board being mounted on two positioning posts of the mounting mechanism;

FIG. 6 is a schematic view of a mounting circuit board;

FIG. 7 is a schematic view of FIG. 6 taken along line B;

in the figure, 1-workbench, 2-hot air generating device, 3-supporting plate, 4-vibrating motor, 5-positioning column, 6-circuit board limiting mechanism, 7-feeding cylinder, 8-limiting plate, 9-L plate, 10-mounting plate, 11-guide rod, 12-spring, 13-air blower, 14-air heater, 15-frame, 16-air outlet bin, 17-tray body, 18-air outlet hole, 19-pipeline, 20-funnel, 21-collecting tank, 22-blind hole and 23-circuit board.

Detailed Description

The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:

as shown in fig. 3-4, a device for efficiently drying a circuit board comprises a workbench 1, a hot air output device 2 and a supporting plate 3 are sequentially and fixedly arranged on a table top of the workbench 1 from left to right, a vibration motor 4 is arranged on a left end face of the supporting plate 3, a plurality of mounting mechanisms for mounting the circuit board are arranged on a right end face of the supporting plate 3 along the longitudinal direction of the supporting plate, the distance between two adjacent mounting mechanisms is equal, each mounting mechanism comprises two positioning columns 5 fixedly arranged on a right end face of the supporting plate 3, the two positioning columns 5 are positioned on the same vertical plane, a plurality of circuit board limiting mechanisms 6 corresponding to the mounting mechanisms are arranged on the table top of the workbench 1 and positioned on the right side of the supporting plate 3, each circuit board limiting mechanism 6 comprises a feeding cylinder 7 and a limiting plate 8, a cylinder barrel of the feeding cylinder 7 is fixedly arranged on the table top of the workbench 1, and an L plate 9 is arranged on a piston rod of the feeding cylinder 7, the vertical plate of L board 9 sets firmly on the effect of piston rod is served, has set firmly mounting panel 10 on the horizontal plate of L board 9, and it has two guide bars 11 to slide to run through on mounting panel 10, has set firmly limiting plate 8 between the left extension end of two guide bars 11, and limiting plate 8 sets up with installation mechanism opposition, and the cover is equipped with spring 12 on the guide bar 11, and the one end of spring 12 sets firmly on the right-hand member face of limiting plate 8, and the other end sets firmly on the left end face of mounting panel 10.

The hot air generating device 2 comprises an air blower 13, an air heater 14 and a rack 15 which are fixedly arranged on the table-board of the workbench 1, the rack 15 is arranged on the left side of the supporting plate 3, an air outlet bin 16 is welded at the upper end part of the rack 15, a disc body 17 is welded at the bottom of the air outlet bin 16, the inner cavity of the disc body 17 is communicated with the air outlet bin 16, the disc body 17 is arranged on the right side of the supporting plate 3, and a plurality of air outlet holes 18 are formed in the bottom surface of the disc body 17; the blower 13 is connected with an air heater 14, and the outlet end of the air heater 14 is connected with the top port of the air outlet bin 16. A pipeline 19 is connected between the outlet end of the air heater 14 and the top port of the air outlet bin 16. The air outlet holes 18 are uniformly distributed on the tray body 17.

The bottom of the workbench 1 is fixedly provided with a funnel 20, the funnel 20 is arranged under the disk body 17, and a collecting tank 21 supported on the ground is arranged under the funnel 20. The device also comprises a controller, the controller is electrically connected with the air blower 13, the vibration motor 4 and the electromagnetic valves of the feeding cylinder 7, a worker can control the air blower 13 and the vibration motor 4 to be started or closed through the controller, and meanwhile, the extension or retraction of the piston rod of the feeding cylinder 7 can be controlled, so that the device is convenient for the operation of the worker and has the characteristic of high automation degree.

The working process of the utility model is as follows:

s1, drilling two blind holes 22 on one end face of the circuit board to be dried by a worker as shown in figures 1-2, ensuring that the distance between the two blind holes 22 is equal to the distance between two positioning columns 5 in the mounting mechanism, and ensuring that the depth of the blind holes 22 is greater than the length of the positioning columns 5;

s2, respectively sleeving two blind holes 22 on a first circuit board 23 on two positioning columns 5 of a first installation mechanism by a worker as shown in FIG. 5, then controlling a piston rod of a feeding cylinder 7 corresponding to the installation mechanism to extend by the worker, driving an L plate 9 to move leftwards by the piston rod, driving an installation plate 10 to move leftwards synchronously by the L plate 9, driving a guide rod 11 and a limiting plate 8 to move leftwards synchronously by the installation plate 10, and after the piston rod extends completely, pressing the circuit board 23 between a support plate 3 and the limiting plate 8 by the limiting plate 8, thereby realizing the installation of the first circuit board 23 to be dried; repeating the operation of step S2 in this way, the plurality of circuit boards 23 can be mounted as shown in fig. 6 to 7, and after the mounting, two adjacent circuit boards 23 are separated from each other;

s3, firstly controlling a vibration motor 4 to start by a worker, enabling the support plate 3 to vibrate by the vibration motor 4, enabling the circuit board 23 to vibrate by the support plate 3, enabling water attached to the two large end faces of the circuit board 23 to quickly drop under vibration, enabling the dropped water to pass through a funnel 20 and enter a collecting groove 21, after vibrating for a period of time, closing the vibration motor 4 by the worker, then controlling an air blower 13 to start by the worker, enabling the air blower 13 to suck outside air into an air heater 14, heating the air by the air heater 14, enabling heated hot air to finally blow out downwards from an air outlet 18 through an outlet end of the air heater 14, a pipeline 19, an air outlet bin 16 and an inner cavity of a tray body 17 in sequence, drying residual moisture attached to the two large end faces of the circuit board 23 by the hot air, and controlling the air blower 13 to close after drying for a period of time; therefore, the device is in a vibration mode, moisture attached to two large end faces of the circuit board 23 is shaken down, the residual moisture is driven downwards by hot air blown downwards through the device and the circuit board is dried, the traditional drying channel type drying circuit board is compared, the drying time of the circuit board is greatly shortened, and the drying efficiency of the circuit board is greatly improved.

S4, controlling the piston rods of the feeding cylinders 7 to retract rightwards by workers, driving the L plate 9 and the limiting plate 8 to move rightwards by the piston rods, and pulling the dried circuit board 23 out of the positioning column 5 by the workers after the piston rods reset, so that the finished circuit board is taken away.

Wherein, in the drying process of step S3, two big terminal surfaces of circuit board 23 do not contact with any contact pad, have guaranteed that two big terminal surfaces of circuit board 23 are by thorough stoving, compare traditional stoving mode, do not have the region of not drying, therefore the device has the more thorough technical advantage of stoving.

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 may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a device of high-efficient stoving circuit board which characterized in that: it includes workstation (1), turn right from a left side on the mesa of workstation (1) and set firmly hot-blast output device (2) and backup pad (3) in order, install vibrating motor (4) on the left end face of backup pad (3), be provided with a plurality of installation mechanisms that are used for installing the circuit board on the right-hand member face of backup pad (3) and along its longitudinal direction, installation mechanism includes two reference columns (5) that set firmly on backup pad (3) right-hand member face, and two reference columns (5) are in same perpendicular, just be located the right side of backup pad (3) on the mesa of workstation (1) and be provided with a plurality of circuit board stop gear (6) corresponding with installation mechanism, circuit board stop gear (6) are including feeding cylinder (7) and limiting plate (8), and the cylinder that feeds cylinder (7) sets firmly on the mesa of workstation (1), are provided with L board (9) on the piston rod of feeding cylinder (7), the vertical plate of L board (9) sets firmly on the effect of piston rod is served, set firmly mounting panel (10) on the horizontal plate of L board (9), it has two guide bars (11) to slide to run through on mounting panel (10), limiting plate (8) have set firmly between the left extension end of two guide bars (11), limiting plate (8) set up with installation mechanism opposition, the cover is equipped with spring (12) on guide bar (11), the one end of spring (12) sets firmly on the right-hand member face of limiting plate (8), the other end sets firmly on the left end face of mounting panel (10).

2. The device for efficiently drying the circuit board according to claim 1, wherein: the distance between two adjacent mounting mechanisms is equal.

3. The device for efficiently drying the circuit board according to claim 1, wherein: the hot air output device (2) comprises an air blower (13), an air heater (14) and a rack (15) which are fixedly arranged on the table top of the workbench (1), the rack (15) is arranged on the left side of the supporting plate (3), an air outlet bin (16) is welded at the upper end of the rack (15), a tray body (17) is welded at the bottom of the air outlet bin (16), an inner cavity of the tray body (17) is communicated with the air outlet bin (16), the tray body (17) is arranged on the right side of the supporting plate (3), and a plurality of air outlet holes (18) are formed in the bottom surface of the tray body (17); the air blower (13) is connected with the air heater (14), and the outlet end of the air heater (14) is connected with the top port of the air outlet bin (16).

4. The device of claim 3, wherein the device comprises: a pipeline (19) is connected between the outlet end of the air heater (14) and the top port of the air outlet bin (16).

5. The device of claim 3, wherein the device comprises: the air outlet holes (18) are uniformly distributed on the tray body (17).

6. The device for efficiently drying the circuit board according to claim 1, wherein: the bottom of workstation (1) sets firmly funnel (20), and funnel (20) set up under disk body (17), are provided with collection vat (21) that support on subaerial under funnel (20).

7. The device for efficiently drying the circuit board according to claim 1, wherein: the device also comprises a controller which is electrically connected with the blower (13), the vibration motor (4) and the electromagnetic valve of the feeding cylinder (7).