CN212519581U

CN212519581U - Board baking device for printed circuit board

Info

Publication number: CN212519581U
Application number: CN202021257628.7U
Authority: CN
Inventors: 师鑫
Original assignee: Yuncheng University
Current assignee: Yuncheng University
Priority date: 2020-07-01
Filing date: 2020-07-01
Publication date: 2021-02-09
Anticipated expiration: 2030-07-01

Abstract

The utility model discloses a printed circuit board is baked board device, including base and casing, the equidistant fixed four landing legs that are equipped with of edge on base top, the top of four landing legs all with the edge fixed connection of casing bottom, the inner chamber of casing is provided with the rotary drum, and the both ends of rotary drum respectively with the top middle part and the bottom middle part fixed connection of casing inner wall, the equidistant three baffle that is provided with of arc such as the surface of rotary drum, and the relative one end of three baffle is connected with the fixed surface of rotary drum. The utility model is provided with the air pump, and the heating wire is arranged in the first conduit to heat the circulating air, so that when the hot air passes through the surface of the circuit board fixed on the fixed plate, the baking plate is more uniform, and the quality of the circuit board after baking the plate can be ensured; in addition, the cooling speed of the circuit board can be increased by arranging the exhaust fan; when the device is used, the baking plate and the cooling can be carried out synchronously, and the efficiency is high.

Description

Board baking device for printed circuit board

Technical Field

The utility model relates to a printed circuit board's production field specifically is a printed circuit board is baked board device.

Background

The printed circuit board is mainly used for providing mechanical support for fixing and assembling various electronic components such as an integrated circuit and the like, realizing wiring, electrical connection or electrical insulation among the various electronic components such as the integrated circuit and the like, providing required electrical characteristics, providing a solder resist pattern for automatic soldering, and providing identification characters and patterns for component insertion, inspection and maintenance.

At present, in the process of baking a board by using a printed circuit board, the printed circuit board needs to be horizontally placed on a baking oven partition board, so that the printed circuit board is heated unevenly, and further, the stability of a board material of the printed circuit board is insufficient, so that the printed circuit board cannot meet the quality requirement and cannot be put into use; because the temperature is higher in the process of baking the board, and both hands need to be stretched into the baking oven when the board is taken, scalding can be caused due to improper operation, so the printed circuit board needs to be completely cooled and taken out, and the working efficiency is affected. Therefore, we improve this and propose a PCB baking device.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the prior art, the utility model provides a printed circuit board baking device.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a printed circuit board baking device, which comprises a base and a casing, wherein four supporting legs are fixedly arranged at the edge of the top end of the base at equal intervals, the top ends of the four supporting legs are fixedly connected with the edge of the bottom end of the casing, the inner cavity of the casing is provided with a rotary drum, three clapboards are arranged at equal intervals on the outer surface of the rotary drum, the opposite ends of the clapboards are fixedly connected with the outer surface of the rotary drum, the opposite ends of the clapboards are respectively attached to the inner wall of the casing, three fixing mechanisms are arranged between every two clapboards at equal intervals, the opposite ends of the fixing mechanisms are respectively fixedly connected with the outer surface of the rotary drum, the opposite ends of the clapboards are respectively fixedly provided with a slide block, the inner wall of the casing is provided with a circular groove, the three slide blocks are respectively movably inserted in the circular groove, one side of the inner wall of the, one side on casing top is provided with heating mechanism, two ports of heating mechanism respectively with the top and the bottom fixed connection of casing, the opposite side on casing top is provided with cooling mechanism, two ports of cooling mechanism respectively with the top and the bottom fixed connection of casing, the top of casing is provided with slewing mechanism.

As a preferred technical scheme of the utility model, heating mechanism includes heating wire, first pipe, second pipe, aspiration pump and communicating pipe, the bottom fixed connection of the top of second pipe and casing, the bottom of first pipe and the top fixed connection of casing, just second pipe and first pipe all communicate with the inner chamber of casing, the top of first pipe and the fixed intercommunication of air inlet of aspiration pump, the fixed heating wire that is equipped with in inside of first pipe, the gas outlet of aspiration pump and the fixed intercommunication of one end of communicating pipe, the other end of communicating pipe and the bottom mounting intercommunication of second pipe.

As a preferred technical scheme of the utility model, cooling mechanism includes third pipe, fourth pipe, intake pipe and air exhauster, the top of fourth pipe and the bottom fixed connection of casing, the bottom of third pipe and the top fixed connection of casing, just third pipe and fourth pipe all communicate with the inner chamber of casing, the gas outlet of air exhauster and the fixed intercommunication in top of third pipe, the income gas port of air exhauster and the fixed intercommunication in one end of intake pipe.

As a preferred technical scheme of the utility model, slewing mechanism includes three handle and a pivot, the bottom mounting of pivot runs through the rotary drum and rotatory middle part of pegging graft in the inner chamber of the casing bottom, the rotatory top that runs through the casing and extend to the casing of top of pivot, it is three the equidistant fixed top of pegging graft at the pivot surface of handle isoarc.

As a preferred technical scheme of the utility model, fixed establishment includes a plurality of mount, the mount includes two fixed plates, two the fixed plate respectively with the top and the bottom fixed connection of rotary drum surface, and two the rectangular channel has all been seted up to relative one side of fixed plate.

As a preferred technical scheme of the utility model, the equal fixed cover in top and the bottom of pivot is equipped with antifriction bearing, two antifriction bearing's outer lane respectively with the top and the bottom fixed connection of casing, the bottom movable sleeve of pivot is equipped with plane bearing, plane bearing's top closely laminates with the bottom of rotary drum, plane bearing's bottom closely laminates with the bottom of casing inner chamber.

As a preferred technical scheme of the utility model, circulation switch, cooling switch and temperature controller are fixed to one side of casing, the aspiration pump passes through circulation switch and external power supply electric connection, the air exhauster passes through cooling switch and external power supply electric connection, temperature sensor and temperature controller electric connection, the heating wire and temperature controller's output electric connection.

The utility model has the advantages that: according to the printed circuit board baking device, the air pump is arranged, air in the shell is pumped by the air pump, the air sequentially passes through the communicating pipe, the second guide pipe, the shell and the first guide pipe, so that air circulation is performed, meanwhile, the heating wire is arranged in the first guide pipe, so that the circulating air is heated, when hot air passes through the surface of the circuit board fixed on the fixing plate, baking operation can be performed on the circuit board, the baking operation is uniform, and the quality of the circuit board after baking can be guaranteed; in addition, the exhaust fan is arranged, so that air in the shell is pumped outwards by the exhaust fan, meanwhile, external air enters the shell through the fourth guide pipe, and when the external air passes through the circuit board in the shell, heat on the circuit board is taken away, so that the cooling speed of the circuit board can be increased; when the device is used, the baking plate and the cooling can be carried out synchronously, and the efficiency is high.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of a board baking device for a printed circuit board according to the present invention;

fig. 2 is a schematic view of a partial structure of the board baking device for printed circuit boards according to the present invention;

fig. 3 is a schematic view of a cross-sectional structure of a heating mechanism of the board baking device for printed circuit boards according to the present invention;

fig. 4 is a schematic view of the sectional structure of the cooling mechanism of the board baking device for printed circuit boards of the present invention;

fig. 5 is a schematic top sectional view of a casing of a device for baking printed circuit boards according to the present invention;

fig. 6 is a schematic view of a partial cross-sectional structure of a rotating shaft of the board baking device for a printed circuit board according to the present invention;

fig. 7 is a schematic view of an upward-looking section structure of a communicating tube of the board baking device for a printed circuit board of the present invention.

In the figure: 1. a base; 2. a housing; 3. an electric heating wire; 4. a second conduit; 5. a support leg; 6. a fourth conduit; 7. a slider; 8. a fixing plate; 9. a partition plate; 10. a third conduit; 11. an air inlet pipe; 12. an exhaust fan; 13. a rotating shaft; 1301. a rolling bearing; 14. a rotating drum; 1401. a flat bearing; 15. A handle; 16. a first conduit; 17. an air pump; 18. a communicating pipe; 19. a temperature sensor.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1, 2, 3, 4, 5, 6 and 7, the utility model relates to a printed circuit board baking device, which comprises a base 1 and a casing 2, four supporting legs 5 are fixedly arranged at the edge of the top end of the base 1 at equal intervals, the top ends of the four supporting legs 5 are fixedly connected with the edge of the bottom end of the casing 2, a rotary drum 14 is arranged in the inner cavity of the casing 2, three partition plates 9 are arranged at equal intervals on the outer surface of the rotary drum 14 at equal intervals, the opposite ends of the three partition plates 9 are fixedly connected with the outer surface of the rotary drum 14, the opposite ends of the three partition plates 9 are attached to the inner wall of the casing 2, three fixing mechanisms are arranged between every two partition plates 9 at equal intervals, the opposite ends of the nine groups of fixing mechanisms are fixedly connected with the outer surface of the rotary drum 14, the opposite ends of the three partition plates 9 are fixedly provided with sliders 7, the inner wall, three slider 7 is all the activity pegged graft inside the circular slot, and one side of 2 inner walls of casing is fixed to be inlayed and is equipped with temperature sensor 19, and one side on 2 tops of casing is provided with heating mechanism, two ports of heating mechanism respectively with the top and the bottom fixed connection of casing 2, and the opposite side on 2 tops of casing is provided with cooling mechanism, two ports of cooling mechanism respectively with the top and the bottom fixed connection of casing 2, and the top of casing 2 is provided with slewing mechanism.

Wherein, the heating mechanism comprises an electric heating wire 3, a first conduit 16, a second conduit 4, an air extracting pump 17 and a communicating pipe 18, the top end of the second conduit 4 is fixedly connected with the bottom end of the casing 2, the bottom end of the first conduit 16 is fixedly connected with the top end of the casing 2, the second conduit 4 and the first conduit 16 are both communicated with the inner cavity of the casing 2, the top end of the first conduit 16 is fixedly communicated with an air inlet of the air extracting pump 17, the electric heating wire 3 is fixedly arranged inside the first conduit 16, an air outlet of the air extracting pump 17 is fixedly communicated with one end of the communicating pipe 18, the other end of the communicating pipe 18 is fixedly communicated with the bottom end of the second conduit 4, when the printed circuit board rotates to the heating mechanism part in the casing 2, the air in the inner cavity of the heating mechanism of the casing 2 is pumped into the communicating pipe 18 through the first conduit 16 by the operation of the air extracting pump 17, and, then, a circulation is formed in the cavity of the part of the heating mechanism entering the machine case 2 through the second conduit 4, and the printed circuit board on the fixing plate 8 is heated.

Wherein, cooling mechanism includes third pipe 10, fourth pipe 6, intake pipe 11 and air exhauster 12, the top of fourth pipe 6 and the bottom fixed connection of casing 2, the bottom of third pipe 10 and the top fixed connection of casing 2, and third pipe 10 and fourth pipe 6 all communicate with the inner chamber of casing 2, the fixed intercommunication in top and third pipe 10 of air exhauster 12's gas outlet, the fixed intercommunication in income gas port and the one end of intake pipe 11 of air exhauster 12, when printed circuit board rotates this part to cooling mechanism in casing 2, air exhauster 12 work inhales this partial inner chamber of casing 2 cooling mechanism through third pipe 10 with the air of casing 2 outside, form a circulation, cool down to the printed circuit board on fixed plate 8.

Wherein, slewing mechanism includes three handle 15 and a pivot 13, the bottom mounting of pivot 13 runs through rotary drum 14 and rotatory middle part of pegging graft in 2 inner chamber bottoms of casing, the rotatory top that runs through casing 2 and extend to casing 2 of pivot 13, the equidistant fixed top of pegging graft at 13 surfaces of pivot of arcs such as three handle 15, when rotating handle 15, can drive the rotation of pivot 13, then it is rotatory to drive rotary drum 14, thereby it rotates to drive a plurality of mount, can adjust the position of a plurality of mount.

Wherein, fixed establishment includes a plurality of mount, and the mount includes two fixed plates 8, two fixed plates 8 respectively with the top and the bottom fixed connection of 14 surfaces of rotary drum, and the rectangular channel has all been seted up to two relative one sides of fixed plate 8, and two fixed plates 8 of every group mount are mutually supported, can fix printed circuit board on the mount.

Wherein, the top and the bottom of pivot 13 are all fixed the cover and are equipped with antifriction bearing 1301, two antifriction bearing 1301's outer lane respectively with the top and the bottom fixed connection of casing 2, the bottom activity cover of pivot 13 is equipped with flat bearing 1401, flat bearing 1401's top and the bottom of rotary drum 14 closely laminate, flat bearing 1401's bottom and the bottom of casing 2 inner chamber closely laminate, are provided with antifriction bearing 1301 and flat bearing 1401, when pivot 13 and rotary drum 14 rotate, reduce the frictional force that brings when pivot 13 and rotary drum 14 rotate.

Wherein, a circulation switch, a cooling switch and a temperature controller are fixed on one side of the casing 2, the air pump 17 is electrically connected with an external power supply through the circulation switch, the exhaust fan 12 is electrically connected with the external power supply through the cooling switch, the temperature sensor 19 is electrically connected with the temperature controller, the electric heating wire 3 is electrically connected with the output end of the temperature controller, the temperature sensor 19 is preferably WZP-02 type, and the temperature controller is preferably TC-05B type.

When the printed circuit board heating device works, firstly, the printed circuit board is fixed on the fixing frame, then the handle 15 is rotated, the handle 15 drives the rotating shaft 13 to rotate, then the rotating shaft 13 drives the rotating drum 14 to rotate, so that the rotating drum 14 drives a plurality of fixing frames to rotate, the printed circuit board fixed on the fixing frame is rotated to the inner cavity of the part of the heating mechanism, the circulation switch and the cooling switch are turned on, when the printed circuit board rotates to the part of the heating mechanism in the casing 2, the air suction pump 17 works, the air suction pump 17 is preferably VLK5504 type, the air in the casing 2 is pumped by the air suction pump 17, the air passes through the communicating pipe 18, the second conduit 4, the casing 2 and the first conduit 16 in sequence, the air circulation is carried out, meanwhile, the heating wire 3 is arranged in the first conduit 16, the heating wire 3 is preferably XF902 type, the circulated air is heated, so that when the hot air passes through the surface of, heating the printed circuit board, baking the printed circuit board, fixing the printed circuit board to be heated on another set of fixing frame outside the casing 2, rotating the handle 15 after baking the printed circuit board, heating the printed circuit board to be heated in the inner cavity of the heating mechanism, heating the printed circuit board to be heated in the cooling mechanism, operating the exhaust fan 12, wherein the exhaust fan 12 is preferably SY-FYSJ01 type, pumping the air inside the casing 2 outwards by the exhaust fan 12, simultaneously, the external air enters the casing 2 through the fourth conduit 6, taking away the heat on the printed circuit board when the external air passes through the circuit board inside the casing 2, thereby cooling the printed circuit board on the fixing plate 8, and fixing the printed circuit board to be heated on the last fixing frame outside the casing 2, when the heating mechanism finishes baking the printed circuit board in the partial inner cavity, the handle 15 is rotated, the cooled printed circuit board is taken out of the machine shell 2, the printed circuit board is taken down and replaced by the unheated printed circuit board, and the operation is circulated.

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. A printed circuit board baking device comprises a base (1) and a machine shell (2), and is characterized in that four supporting legs (5) are fixedly arranged at the edge of the top end of the base (1) at equal intervals in an arc manner, the top ends of the four supporting legs (5) are fixedly connected with the edge of the bottom end of the machine shell (2), a rotary drum (14) is arranged in an inner cavity of the machine shell (2), three partition plates (9) are arranged on the outer surface of the rotary drum (14) at equal intervals in an arc manner, opposite ends of the three partition plates (9) are fixedly connected with the outer surface of the rotary drum (14), the back-to-back ends of the three partition plates (9) are attached to the inner wall of the machine shell (2), three fixing mechanisms are arranged between every two partition plates (9) at equal intervals in an arc manner, opposite ends of nine groups of fixing mechanisms are fixedly connected with the outer surface of the rotary drum (14), and sliders (7) are fixedly arranged at the back-, the inner wall of casing (2) has seted up the ring groove, and is three equal activity of slider (7) is pegged graft inside circular slot, one side of casing (2) inner wall is fixed to be inlayed and is equipped with temperature sensor (19), one side on casing (2) top is provided with heating mechanism, two ports of heating mechanism respectively with the top and the bottom fixed connection of casing (2), the opposite side on casing (2) top is provided with cooling mechanism, two ports of cooling mechanism respectively with the top and the bottom fixed connection of casing (2), the top of casing (2) is provided with slewing mechanism.

2. The PCB baking device according to claim 1, wherein the heating mechanism comprises a heating wire (3), a first conduit (16), a second conduit (4), a suction pump (17) and a communication pipe (18), the top end of the second guide pipe (4) is fixedly connected with the bottom end of the shell (2), the bottom end of the first guide pipe (16) is fixedly connected with the top end of the shell (2), and the second conduit (4) and the first conduit (16) are both communicated with the inner cavity of the shell (2), the top end of the first conduit (16) is fixedly communicated with the air inlet of the air pump (17), the interior of the first conduit (16) is fixedly provided with an electric heating wire (3), the air outlet of the air pump (17) is fixedly communicated with one end of the communicating pipe (18), the other end of the communicating pipe (18) is fixedly communicated with the bottom end of the second conduit (4).

3. The printed circuit board baking device according to claim 2, wherein the cooling mechanism comprises a third conduit (10), a fourth conduit (6), an air inlet pipe (11) and an exhaust fan (12), the top end of the fourth conduit (6) is fixedly connected with the bottom end of the casing (2), the bottom end of the third conduit (10) is fixedly connected with the top end of the casing (2), the third conduit (10) and the fourth conduit (6) are both communicated with the inner cavity of the casing (2), the air outlet of the exhaust fan (12) is fixedly communicated with the top end of the third conduit (10), and the air inlet of the exhaust fan (12) is fixedly communicated with one end of the air inlet pipe (11).

4. The PCB baking device as claimed in claim 1, wherein the rotating mechanism comprises three handles (15) and a rotating shaft (13), the bottom end of the rotating shaft (13) is fixedly inserted through the rotating drum (14) and is rotatably inserted in the middle of the bottom end of the inner cavity of the casing (2), the top end of the rotating shaft (13) is rotatably inserted through the casing (2) and extends to the top of the casing (2), and the three handles (15) are fixedly inserted at the top end of the outer surface of the rotating shaft (13) at equal intervals.

5. The PCB baking device of claim 1, wherein the fixing mechanism comprises a plurality of fixing frames, the fixing frames comprise two fixing plates (8), the two fixing plates (8) are respectively and fixedly connected with the top and the bottom of the outer surface of the drum (14), and one opposite sides of the two fixing plates (8) are respectively provided with a rectangular groove.

6. The printed circuit board baking device according to claim 4, wherein rolling bearings (1301) are fixedly sleeved on the top and the bottom of the rotating shaft (13), outer rings of the two rolling bearings (1301) are fixedly connected with the top and the bottom of the machine shell (2) respectively, a flat bearing (1401) is movably sleeved on the bottom of the rotating shaft (13), the top end of the flat bearing (1401) is tightly attached to the bottom end of the rotating drum (14), and the bottom end of the flat bearing (1401) is tightly attached to the bottom end of the inner cavity of the machine shell (2).

7. The PCB baking device according to claim 3, wherein a circulation switch, a cooling switch and a temperature controller are fixed on one side of the case (2), the air pump (17) is electrically connected with an external power supply through the circulation switch, the air exhaust fan (12) is electrically connected with the external power supply through the cooling switch, the temperature sensor (19) is electrically connected with the temperature controller, and the electric heating wire (3) is electrically connected with the output end of the temperature controller.