CN220437034U - Drying device used after etching of PBC/FPC board - Google Patents

Abstract

The application relates to a drying device behind PCB FPC board etching relates to the technical field of air-drying device, and it includes the air-drying box, set up the air-drying chamber that is used for air-drying panel in the air-drying box, the air-drying chamber includes heating chamber and air-drying chamber, be provided with a plurality of pottery heating plates in the heating chamber, a plurality of pottery heating plates equidistant setting in the direction of delivery of panel, a plurality of pottery heating plates include a plurality of pottery heating plates and a plurality of ceramic heating plates down, a plurality of go up the pottery heating plate sets up in panel top, a plurality of ceramic heating plates set up in the panel below down. The PCB/FPC board air-dries the dead angle at the air-drying in-process production has to reduce this application, guarantees the effect of panel surface temperature's homogeneity.

Description

Drying device used after etching of PBC/FPC board

Technical Field

The utility model relates to the technical field of air drying devices, in particular to a drying device used after etching of a PBC/FPC board.

Background

After the PCB/FPC board surface is washed by etching liquid, the board surface needs to be dried, so that the surface of the subsequently manufactured circuit board is dried and free of moisture.

In the related art, a conventional drying treatment method for a PCB/FPC board surface generally adopts PCB/FPC air drying equipment to dry, and the scheme is that a heating box, an air storage box, an air diversion box, an air knife and other structures are arranged in an air drying box, the board surface is air-dried in a hot air circulation mode, namely, air is firstly conveyed into the heating box by a fan, is heated by a heater in the heating box, is filtered in the air storage box, is split by the air diversion box, is blown to the board surface of a board by the air knife after being split, and is returned by an air return box after being dried, and the air is transmitted to the fan to enter the next circulation.

However, in the actual drying process, since the air-drying box body is conventionally set to be of a square structure, air-drying dead angles can be generated due to the limitation of the box body structure and the flowing influence of air flow in the box body, so that the problem of uneven temperature of the board surface is caused, and the air-drying effect cannot be ensured.

Disclosure of Invention

In order to improve that current PCB/FPC face air-dries the technique and can produce the air-dry dead angle, lead to the inhomogeneous phenomenon of face temperature, this application provides a drying device after being used for PBC/FPC board etching.

The application provides a drying device for PBC/FPC board etching back adopts following technical scheme:

the utility model provides a drying device for after PBC FPC board etching, includes the air-dry box, set up the air-dry room that is used for air-drying panel in the air-dry box, the air-dry room includes heating chamber and air-dry room, be provided with a plurality of pottery in the heating chamber and generate heat the board, a plurality of pottery generates heat the board and equally spaced the setting on the direction of delivery of panel, a plurality of pottery generates heat the board and includes a plurality of pottery and generates heat the board under a plurality of, a plurality of go up the pottery generates heat the board and sets up in panel top, a plurality of lower pottery generates heat the board and sets up in the panel below.

Through adopting above-mentioned technical scheme, when panel passes through the heating chamber, a plurality of pottery that are located the heating chamber upper and lower both sides are heated the board and are cut apart into the little district temperature control with whole heating chamber inside, and the upper and lower surface to the panel does not have the dead angle ground and heats the stoving, can not receive the restriction of box structure and the flow influence of the inside air current of box to produce and air-dry the dead angle, lead to the inhomogeneous problem of panel temperature, can guarantee the air-dry effect.

Preferably, a conveying roller for conveying the plates is arranged in the air drying box body, the conveying roller comprises an upper roller and a lower roller, a conveying gap for placing the plates is formed between the upper roller and the lower roller, and a driving assembly for driving the conveying roller to rotate is arranged on one side of the upper roller so that the plates move.

Through adopting above-mentioned technical scheme, before the circuit board air-dries, put into the conveying clearance with the circuit board, start drive assembly, driving motor drives and carries gyro wheel and lower transport gyro wheel and rotate to the same direction, makes the circuit board remove from this.

Preferably, the driving assembly comprises bevel gears arranged on two sides of the upper roller and the lower roller, bevel gear sets arranged on two sides of the lower roller and a driving motor fixedly arranged on the conveying frame, the bevel gears between the upper roller and the lower roller are meshed with each other, a transmission shaft is arranged at the other end of the bevel gear on one side of the lower roller, a driven gear and a driving gear meshed with the driven gear are arranged at one end of the transmission shaft, and an output shaft of the driving motor is fixedly connected with the driving gear.

Through adopting above-mentioned technical scheme, when starting driving motor, driving motor's output shaft drives the driving gear and rotates, and the driving gear rotates the driven gear who drives transmission shaft one end and rotates to drive the transmission shaft and rotate, thereby drive the lower roller and rotate, when the lower roller rotates, the lower roller can drive the upper roller and rotate to opposite direction, thereby drives the panel that is located the transportation clearance and remove along the direction of transportation.

Preferably, the air knife group is used for blowing hot air to the surface of the plate in the air blowing chamber, so that moisture on the surface of the plate is air-dried, the air knife group comprises an upper air knife and a lower air knife, the upper air knife is fixedly connected to the upper side of the upper roller, the lower air knife is fixedly connected to the lower side of the lower roller, an air blowing opening of the upper air knife is vertically arranged towards the upper roller, and an air blowing opening of the lower air knife is vertically arranged towards the lower roller.

Through adopting above-mentioned technical scheme, the updraft ventilator is used for blowing the air supply to the upper surface of circuit board, air-dries the upper surface of circuit board from this, and the downdraft ventilator is used for blowing the air supply to the lower surface of circuit board, air-dries the lower surface of circuit board from this.

Preferably, the blowing mouth of the updraft blade and the blowing mouth of the downdraft blade are both provided with blowing nozzles for blowing wind to the surface of the plate, and the updraft blade and the downdraft blade are both provided with fixing components for fixing the blowing nozzles.

Through adopting above-mentioned technical scheme, the blowing nozzle makes from the mouth department of last air knife and from the wind energy that blows out of the mouth department of downwind knife can more evenly be blown to the base plate surface to reduce and air-dry the dead angle, fixed subassembly is used for fixing the upside and the downside of going up air knife and downwind knife in the circuit board.

Preferably, the fixing component comprises protrusions arranged on two sides of the upper air knife and the lower air knife, grooves formed in the protrusions and metal hooks arranged on two sides of the blowing nozzle, and the metal hooks are matched with the grooves in a clamping mode.

Through adopting above-mentioned technical scheme, metal pothook joint cooperation in the recess to make the blast gate can fixed connection in the mouth department of blowing of last air knife and the mouth department of blowing of lower air knife, thereby blow the wind to the base plate surface.

Preferably, a heating regulator for regulating the temperature of the ceramic heating plate is fixedly connected in the heating chamber, and the heating regulator is fixedly connected to one side, far away from the conveying roller, of the ceramic heating plate.

By adopting the technical scheme, the heating regulator is used for regulating the distance from the ceramic heating plate to the surface of the plate and the temperature of the ceramic heating plate.

Preferably, the number of the upwind knives and the number of the downwind knives are all set to be a plurality.

Through adopting above-mentioned technical scheme, a plurality of updraft blades and a plurality of downdraft blades can make the wind that blows to the base plate surface more even, reduce and air-dry the dead angle.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the plate passes through the heating chamber, the ceramic heating plates positioned at the upper side and the lower side in the heating chamber divide the whole heating chamber into small areas for temperature control, the upper surface and the lower surface of the plate are heated and dried without dead angles, and the plate cannot be limited by a box body structure and the flowing influence of air flow in the box body, so that the generation of air drying dead angles is reduced, the problem of uneven plate surface temperature is solved, and the air drying effect can be ensured;

2. when the panel passes through the air blowing chamber, the upper air knife can blow air to the upper surface of the circuit board, so that the upper surface of the circuit board is air-dried, and the lower air knife can blow air to the lower surface of the circuit board, so that the lower surface of the circuit board is air-dried.

Drawings

FIG. 1 is a side view of the present application;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a cross-sectional view of the present application;

fig. 4 is an enlarged view at B in fig. 3.

Reference numerals illustrate: 1. air-drying the box body; 2. an air drying chamber; 3. a feed inlet; 4. a discharge port; 5. an upper roller; 6. a lower roller; 7. a conveying gap; 8. a driven gear; 9. a drive gear; 10. a driving motor; 11. a heating chamber; 12. an air blowing chamber; 13. a ceramic heating plate is arranged on the upper part; 14. a ceramic heating plate is arranged; 15. a heating regulator; 16. an air knife; 17. a down wind knife; 18. a protrusion; 19. square grooves; 20. blowing an air port; 21. a blowing nozzle; 22. a metal hook; 23. a bending portion; 24. a transmission shaft; 25. bevel gears.

Detailed Description

The present application is described in further detail below in conjunction with fig. 1-4.

A drying device for after PBC FPC board etching, refer to FIG. 1, including air-drying box 1, air-drying box 1 is the cuboid form setting, and air-drying box 1's inside is the cavity setting and is formed with air-drying chamber 2, and feed inlet 3 and discharge gate 4 have been seted up respectively to air-drying box 1's two lateral walls, and feed inlet 3 and discharge gate 4 all communicate with air-drying chamber 2.

Referring to fig. 1, a conveying frame for conveying plates is arranged in an air drying chamber 2, and two ends of the conveying frame respectively extend out of a feed inlet 3 and a discharge outlet 4 correspondingly. The conveying frame is rotationally connected with a conveying roller for conveying the plates and driving components arranged at symmetrical positions on two sides of the conveying roller. Specifically, the conveying rollers are divided into an upper roller 5 and a lower roller 6, the upper roller 5 and the lower roller 6 are arranged in parallel, and a conveying gap 7 for conveying the plate is arranged between the upper roller 5 and the lower roller 6.

Referring to fig. 2 and 3, the driving assembly includes bevel gears 25 sleeved on both side ends of the conveying roller and gear 25 sets disposed on both sides of the lower roller 6. Specifically, the bevel gears 25 are fixedly sleeved at the two side ends of the upper roller 5 and the lower roller 6, and the bevel gears 25 between the upper roller 5 and the lower roller 6 are meshed with each other, so that when the bevel gears 25 of the lower roller 6 rotate, the upper roller 5 also rotates, and the rotating direction is opposite to that of the lower roller 6. The other end of the bevel gear 25 on one side of the lower roller 6 is sleeved with a transmission shaft 24. The gear set comprises a driven gear 8 coaxially and fixedly arranged at one end of a transmission shaft 24 and a driving gear 9 meshed with the driven gear 8, an output shaft of the driving motor 10 is fixedly connected with the driving gear 9, and the driving assembly structure at the other side is kept consistent.

Referring to fig. 3 and 4, the air drying chamber 2 includes a heating chamber 11 for heating a plate material and an air drying chamber 12 for air drying the plate material, specifically, a ceramic heating plate for heating to evaporate etching solution on the surface of the plate material is fixedly connected in the heating chamber 11, the ceramic heating plate is in a cuboid shape, the ceramic heating plate includes an upper ceramic heating plate 13 and a lower ceramic heating plate 14, the upper ceramic heating plate 13 is fixedly connected to the upper side of the upper roller 5, and the lower ceramic heating plate 14 is fixedly connected to the lower side of the lower roller 6. The upper ceramic heating plate 13 is vertically disposed toward the upper roller 5, and the lower ceramic heating plate 14 is vertically disposed toward the lower roller 6, thereby primarily heating the plate material to evaporate water.

Referring to fig. 3 and 4, in the present embodiment, the upper ceramic heating plates 13 and the lower ceramic heating plates 14 are all arranged in a plurality, the upper ceramic heating plates 13 and the lower ceramic heating plates 14 are all arranged at equal intervals in the conveying direction of the conveying frame, and the upper ceramic heating plates 13 and the lower ceramic heating plates 14 are all arranged in two rows in the length direction of the conveying roller. The heating chamber 11 is fixedly connected with a heating regulator 15 for regulating the temperature of the ceramic heating plate, the heating regulator 15 is positioned on one side of the ceramic heating plate away from the conveying roller, and one side of the ceramic heating plate away from the conveying roller is fixedly connected with the heating regulator through two bolts. The number of the heating regulators 15 is correspondingly set to be a plurality, and the heating regulators 15 are uniformly distributed along the conveying direction of the conveying frame.

Referring to fig. 3 and 4, an air knife set for blowing hot air to the surface of the plate is fixedly connected in the air blowing chamber 12, so that moisture on the surface of the plate is air-dried, and specifically, the air knife set includes an upper air knife 16 and a lower air knife 17, the upper air knife 16 is fixedly connected to the upper side of the upper roller 5, and the lower air knife 17 is fixedly connected to the lower side of the lower roller 6. The air outlets 20 of the upper air knives 16 are arranged vertically towards the upper roller 5 and the air outlets 20 of the lower air knives 17 are arranged vertically towards the lower roller 6 so as to air-dry the upper and lower surfaces of the board material further. In this embodiment, the number of the upper air knives 16 and the lower air knives 17 is several, and the upper air knives 16 and the lower air knives 17 are uniformly distributed at equal intervals in the conveying direction of the conveying roller.

Referring to fig. 3 and 4, bolts are provided at one ends of the upper air knife 16 and the lower air knife 17, and the upper air knife 16 and the lower air knife 17 are fixedly connected with the inner wall of the air blowing chamber 12 through the bolts. The two side surfaces of the upper air knife 16 and the lower air knife 17 are fixedly connected with protrusions 18, the protrusions 18 are respectively positioned at the opposite positions of the two side surfaces of the upper air knife 16 and the lower air knife 17, and square grooves 19 are formed in the protrusions 18. The air outlet 20 that is used for the air-out is all offered to the one end of air knife tackle towards the conveying roller, and air outlet 20 department fixedly connected with is used for enlarging the air-dry area of air knife tackle to panel to reduce the blowing nozzle 21 at air-dry dead angle, blowing nozzle 21 is unilateral flaring form setting. The two sides of the blowing nozzle 21 are provided with metal hooks 22, two ends of each metal hook 22 are provided with bending parts 23, and the bending parts 23 of the metal hooks 22 are in clamping fit with the square grooves 19, so that the blowing nozzle 21 is fixed at the blowing opening 20 of the air knife set.

The implementation principle of the application is as follows: when the plate conveying device is used, a plate is placed in the conveying gap 7, the driving motor 10 is started, the driving motor 10 enables the driving gear 9 to rotate, the driving gear 9 rotates to enable the driven gear 8 to rotate, the lower roller 6 is enabled to rotate, the upper roller 5 is driven to rotate in the opposite direction when the lower roller 6 rotates, and the substrate located in the conveying gap 7 moves in the conveying direction. When the plate passes through the heating chamber 11, the ceramic heating plates positioned at the upper side and the lower side in the heating chamber 11 divide the whole heating chamber 11 into small areas for temperature control, the upper surface and the lower surface of the plate are heated and dried without dead angles, and the plate cannot be limited by a box structure and the flowing influence of air flow in the box, so that the generation of air drying dead angles is reduced, the problem of uneven plate temperature is caused, and the air drying effect can be ensured; when the panel passes through the air blowing chamber 12, the upper air knife 16 can blow air to the upper surface of the circuit board, so that the upper surface of the circuit board is air-dried, and the lower air knife 17 can blow air to the lower surface of the circuit board, so that the lower surface of the circuit board is air-dried, the air-drying effect is further ensured, and the generation of air-drying dead angles is reduced.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (8)

1. A drying device for PBC FPC board etching back, includes air-drying box (1), its characterized in that: air-dry box (1) is interior to be set up and to be used for air-drying air-dry room (2) of panel, air-dry box (1) is provided with the conveying roller that is used for carrying panel, the conveying roller wears to locate in air-dry room (2), air-dry room (2) include heating chamber (11) and blast room (12), be provided with a plurality of pottery heating plates in heating chamber (11), a plurality of pottery heating plates are equidistant along the direction of delivery of panel and are set up, a plurality of pottery heating plates include a plurality of last pottery heating plates (13) and a plurality of lower pottery heating plates (14), when panel is carried in heating chamber (11), a plurality of go up pottery heating plates (13) set up in panel top, a plurality of lower pottery heating plates (14) set up in panel below.

2. The drying device for etched PBC/FPC boards according to claim 1, wherein: the conveying roller comprises an upper roller (5) and a lower roller (6), a conveying gap (7) for placing plates is formed between the upper roller (5) and the lower roller (6), and a driving assembly for driving the conveying roller to rotate is arranged on one side of the upper roller (5).

3. The drying device for etched PBC/FPC boards according to claim 2, wherein: the driving assembly comprises bevel gears (25) arranged on two sides of the upper roller (5) and the lower roller (6), gear sets arranged on two sides of the lower roller (6) and a driving motor (10) fixedly arranged on the conveying frame, the bevel gears (25) arranged between the upper roller (5) and the lower roller (6) are meshed with each other, one end, away from the lower roller (6), of the bevel gears (25) on one side of the lower roller (6) is provided with a transmission shaft (24), and the gear sets comprise driven gears (8) coaxially and fixedly arranged on one end of the transmission shaft (24) and driving gears (9) meshed with the driven gears (8), and an output shaft of the driving motor (10) is fixedly connected with the driving gears (9).

4. The drying device for etched PBC/FPC boards according to claim 1, wherein: the utility model discloses a hot-blast air knife unit of board, including last air knife (16) and lower air knife (17), it is in last roller (5) upside to go up air knife (16) fixed connection, lower air knife (17) fixed connection is in lower roller (6) downside, the blast gate (20) of last air knife (16) set up towards roller (5) perpendicularly, the blast gate (20) of lower air knife (17) set up towards roller (6) perpendicularly.

5. The post-etching drying device for PBC/FPC boards according to claim 4, wherein: the air blowing mouth (20) of the upper air knife (16) and the air blowing mouth (20) of the lower air knife (17) are fixedly provided with blowing nozzles (21) for blowing air to the surface of the plate through fixing components.

6. The post-etching drying device for PBC/FPC boards according to claim 5, wherein: the fixing component comprises metal hooks (22) arranged on two sides of the blowing nozzle (21), protrusions are arranged on two sides of the upper air knife (16) and two sides of the lower air knife (17), and grooves matched with the metal hooks (22) in a clamping mode are formed in the protrusions (18).

7. The drying device for etched PBC/FPC boards according to claim 1, wherein: the heating chamber (11) is internally fixedly connected with a heating regulator (15) for regulating the temperature of the ceramic heating plate, and the heating regulator (15) is fixedly connected to one side, far away from the conveying roller, of the ceramic heating plate.

8. The post-etching drying device for PBC/FPC boards according to claim 4, wherein: the number of the upper air knives (16) and the number of the lower air knives (17) are all set to be a plurality of, and the upper air knives (16) and the lower air knives (17) are in one-to-one correspondence.