Efficient drying device for circuit ink

Abstract

The invention relates to the technical field of drying structures, and discloses an efficient circuit ink drying device which comprises a drying oven and a placing mechanism, multiple sets of sliding rods are arranged on the two sides in the drying oven, sliding grooves are formed in the sliding rods, the placing mechanism comprises a supporting plate and a sliding plate, the supporting plate comprises multiple limiting parts and multiple object placing parts, and the limiting parts and the object placing parts are arranged at intervals. A ventilation opening is formed in the storage part, a moving channel is arranged in the limiting part and connected with the ventilation opening, a moving opening is formed in one side of the supporting plate and communicated with the ventilation opening and the moving channel, the sliding plate is arranged in the moving channel and penetrates out of the moving opening, and the caliber of the ventilation opening is increased or decreased by moving the sliding plate between the moving channel and the ventilation opening. By arranging the placing mechanism, the upper surface and the lower surface of the circuit board can be heated, and the uniform drying effect is improved; and through the arrangement of the air uniformizing mechanism, the air speed can be more uniform, the situation that hot air directly blows the local part to cause non-uniform drying of printing ink is reduced, and the quality of the circuit board is improved.

Description

Technical Field

[0001] The invention relates to the technical field of drying structures, and in particular to a circuit ink high-efficiency drying device. Background Art

[0002] In the manufacturing process of circuit boards, circuit ink is an important material used to form conductive paths on the surface of circuit boards. Circuit ink is usually composed of conductive particles, resins, solvents and other components. Its main function is to ensure the conductivity of circuit connections while meeting requirements such as high temperature resistance and corrosion resistance. The process technology of circuit ink includes steps such as ink preparation, coating, and drying. The coating process usually adopts screen printing, spraying or scraping to evenly apply the ink on the surface of the circuit board to form the required circuit pattern.

[0003] After coating, the ink needs to be dried to facilitate curing and shaping. The drying process usually uses hot air circulation drying, infrared heating or hot air furnace, among which hot air circulation is the most commonly used method. This method promotes the volatilization of the solvent in the ink and solidifies the ink by applying hot air of a certain temperature to the circuit board.

[0004] At present, the drying process of circuit ink in the prior art has the following problems: First, due to the uneven flow of hot air, the temperature difference between the upper and lower surfaces of the circuit board may be large. In some cases, the upper surface of the circuit board may be heated higher than the lower surface, resulting in inconsistent ink curing or local overheating, which not only affects the uniformity of the ink, but may also cause discoloration or damage to the ink. In addition, excessively high temperatures will destroy the chemical structure of the ink, reducing its conductivity and durability.

[0005] Secondly, too high or too low wind speed will have an adverse effect on the drying process of the ink. If the wind speed is too high, the ink surface may dry quickly, forming cracks or bubbles; while if the wind speed is too low, the ink surface may dry slowly, or even cause the solvent of the ink to evaporate incompletely, affecting the curing effect, and even causing the electrical performance of the circuit board to decline. Therefore, a circuit ink efficient drying device is proposed to solve the above problems. Summary of the invention

[0006] The invention aims at the shortcomings existing in the prior art and provides a circuit ink efficient drying device.

[0007] In order to solve the above technical problems, the present invention is solved by the following technical solutions.

[0008] A circuit ink efficient drying device comprises an oven and a placement mechanism, wherein a plurality of slide bars are arranged on both sides of the oven, wherein slide bars are arranged in slide grooves, wherein the placement mechanism comprises a support plate and a sliding plate, wherein both sides of the support plate are fixed into the slide bars through slide grooves, wherein the support plate comprises a plurality of limiting parts and a plurality of placing parts, wherein the limiting parts and the placing parts are arranged at intervals, wherein ventilation openings are arranged on the placing parts, wherein a moving channel is arranged in the limiting parts, wherein the moving channel is connected with the ventilation openings, wherein a moving opening is arranged on one side of the support plate, wherein the moving opening is connected with the ventilation openings and the moving channel, wherein the sliding plate is arranged in the moving channel and passes through the moving opening, wherein the diameter of the ventilation openings is enlarged or reduced by moving the sliding plate between the moving channel and the ventilation openings.

[0009] Preferably, a uniform wind mechanism is provided above the placement mechanism, and the uniform wind mechanism includes an air duct, an air baffle and an air return plate. The air baffle and the air return plate are connected to both sides of the inner wall of the oven. The return air plate is provided above the air duct. There are multiple air ducts, and an air baffle is provided under each air duct.

[0010] Preferably, both sides of the return air plate are arranged in an arc shape, and the wind blocking piece is arranged in an arc shape.

[0011] Preferably, an air inlet channel is provided on the oven, and a plurality of connecting pipes are provided on the air inlet channel. The connecting pipes penetrate through both sides of the oven and are connected to the two ends of the corresponding air ducts.

[0012] Preferably, the air inlet channel is U-shaped, and a warm air component is connected to the outside of the air inlet channel.

[0013] Preferably, a convection plate is provided below the placement mechanism, and a plurality of convection arc sheets are provided on the convection plate, and the convection arc sheets are arranged corresponding to the ventilation openings.

[0014] Preferably, a plurality of exhaust pipes are provided above the oven, and filters are provided on the exhaust pipes.

[0015] Preferably, the oven is provided with a door for opening and closing the oven.

[0016] The present invention has significant technical effects due to the adoption of the above technical solutions: the present invention facilitates the placement and taking of circuit boards by setting a placement mechanism, and the upper and lower surfaces of the circuit boards are heated by placing the circuit boards on the vents, thereby improving the uniform drying effect; at the same time, through the design of the support plate and the sliding plate, the size of the vents can be adjusted to adapt to circuit boards of different sizes, with high flexibility; through the setting of the wind-uniform mechanism, the wind speed can be made more uniform, reducing the situation where hot air directly blows locally and causes uneven drying of ink, thereby ensuring the drying effect and improving the quality of the circuit boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a circuit ink efficient drying device of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a placement mechanism in a circuit ink efficient drying device of the present invention;

[0019] Figure 3 yes Figure 1 A schematic diagram of the structure at A;

[0020] Figure 4 It is a schematic cross-sectional structure diagram of an equal distribution mechanism in a circuit ink efficient drying device of the present invention;

[0021] Figure 5 The present invention is a schematic structural diagram of an air inlet channel in a circuit ink high-efficiency drying device.

[0022] In the figure: 1 - oven, 11 - slide bar, 12 - slide slot, 21 - limit part, 22 - storage part, 23 - ventilation opening, 24 - moving channel, 25 - moving opening, 26 - sliding plate, 31 - air duct, 32 - wind blocking plate, 33 - return air plate, 4 - air inlet channel, 41 - connecting pipe, 5 - convection plate, 51 - convection arc plate, 6 - exhaust pipe, 61 - filter screen, 7 - box door. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] Example 1

[0025] like Figures 1 to 5As shown, it shows a circuit ink efficient drying device provided by an embodiment of the present application, including an oven 1 and a placement mechanism, multiple groups of slide bars 11 are provided on both sides of the oven 1, and the slide bars 11 are used to support the placement mechanism, so as to realize the taking out and putting in of the placement mechanism, which is convenient for the subsequent drying and placement of the circuit board; a slide groove 12 is provided in the slide bar 11, and the placement mechanism includes a support plate and a sliding plate 26, and both sides of the support plate are fixed into the slide bar 11 through the slide groove 12, and the support plate includes a plurality of limiting portions 21 and a plurality of placing portions 22, and the limiting portions 21 and the placing portions 22 are arranged at intervals. The limiting part 21 is convex relative to the placing part 22, so as to limit the position of the circuit board placed in the placing part 22. The placing part 22 is provided with a vent 23, and the limiting part 21 is provided with a moving channel 24, which is connected to the vent 23. A moving opening 25 is provided on one side of the support plate, and the moving opening 25 is connected to the vent 23 and the moving channel 24. The sliding plate 26 is arranged in the moving channel 24 and passes through the moving opening 25. The sliding plate 26 moves between the moving channel 24 and the vent 23 to make the diameter of the vent 23 larger or smaller. By setting the placement mechanism, it is convenient to place and take the circuit board. By placing the circuit board on the vent 23, the upper and lower surfaces of the circuit board can be heated, thereby improving the uniform drying effect. At the same time, by designing the support plate and the sliding plate 26, the size of the vent 23 can be adjusted to adapt to circuit boards of different sizes, with high flexibility.

[0026] A wind-uniform mechanism is arranged above the placement mechanism. The function of the wind-uniform mechanism is to evenly distribute the warm air entering the oven 1 to form warm air with a relatively moderate wind speed. The wind-uniform mechanism includes an air duct 31, a wind-blocking plate 32 and a return air plate 33. The wind-blocking plate 32 and the return air plate 33 are both connected to both sides of the inner wall of the oven 1. The return air plate 33 is arranged above the air duct 31. There are multiple air ducts 31, and the number is 5 in this embodiment. A wind-blocking plate 32 is arranged below each air duct 31. The warm air blown downward from the air duct 31 is first decelerated by the wind-blocking plate 32, and then rebounds to the return air plate 33 above, so that the warm air can be decelerated and flowed downward, and at the same time, the air volume is evenly precipitated from the air ducts 31 to the circuit board, so that the circuit ink on the circuit board can be evenly heated, thereby improving the electrical properties of the circuit board. Through the setting of the wind-uniform mechanism, the wind speed can be more uniform, and the situation that the hot air blows directly to the local area and causes the ink to dry unevenly is reduced, thereby ensuring the drying effect and improving the quality of the circuit board.

[0027] The two sides of the return air plate 33 are arranged in an arc shape, and the wind blocking piece 32 is arranged in an arc shape. Through the above arrangement, the direction of the warm air flow can be better guided.

[0028] The oven 1 is provided with an air inlet channel 4, and the air inlet channel 4 is provided with a plurality of connecting pipes 41, which penetrate through both sides of the oven 1 and are connected to both ends of the corresponding air duct 31. By setting the air inlet connection on both sides of the air duct 31, it is possible to prevent the air volume on one side of the air duct 31 from being too large, so that the air volume entering the air duct 31 is more balanced.

[0029] The air inlet channel 4 is U-shaped, and a warm air component is connected to the outside of the air inlet channel 4.

[0030] A plurality of exhaust pipes 6 are provided above the oven 1, and filters 61 are provided on the exhaust pipes 6. The exhaust pipes 6 are used to discharge internal gas during drying work, and the filters 61 are used to prevent dust and other debris from entering the oven 1 when it is idle.

[0031] The oven 1 is provided with a door 7 for opening and closing the oven 1 to facilitate the operator to perform drying, taking out and storing.

[0032] Example 2

[0033] like Figures 1 to 5 As shown, Example 2 is substantially the same as Example 1, except that a convection plate 5 is provided below the placement mechanism, and a plurality of convection arc sheets 51 are provided on the convection plate 5. The convection arc sheets 51 are provided corresponding to the vents 23, and the convection arc sheets 51 are used to reflux the air flow blown out by the upper wind equalization mechanism, thereby heating the temperature of the circuit board below at the same time, so that the ink drying of the entire circuit is more uniform.

[0034] When in use, first take the support plate out of the oven 1, then move the sliding plate 26 to adjust the diameter of the vent 23 on the storage portion 22 according to the actual size of the circuit board to fit the placement of the circuit board. After the circuit board is placed, put the support plate into the slide groove 12, close the oven door 7, and start the drying work.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the term "include", "comprise" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment that includes a series of elements are inherent to the elements. In the absence of more restrictions, the elements limited by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or equipment that includes the elements. In addition, the above-mentioned technical solution provided in the embodiment of the present application is consistent with the corresponding technical solution in the prior art in principle, and the part is not described in detail, so as not to repeat too much.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A circuit ink high-efficiency drying device, characterized in that: The invention comprises an oven (1) and a placement mechanism, wherein a plurality of slide bars (11) are arranged on both sides of the oven (1), a slide groove (12) is arranged in the slide bar (11), the placement mechanism comprises a support plate and a sliding plate (26), both sides of the support plate are fixed into the slide bar (11) through the slide groove (12), the support plate comprises a plurality of limiting parts (21) and a plurality of placing parts (22), the limiting parts (21) and the placing parts (22) are arranged at intervals, a vent (23) is arranged on the placing parts (22), and the limiting parts (21) and the placing parts (22) are arranged at intervals. A moving channel (24) is provided in the position portion (21), the moving channel (24) is connected to the vent (23), a moving opening (25) is provided on one side of the support plate, the moving opening (25) is connected to the vent (23) and the moving channel (24), a sliding plate (26) is provided in the moving channel (24) and passes through the moving opening (25), and the sliding plate (26) moves between the moving channel (24) and the vent (23) to increase or decrease the diameter of the vent (23).

2. A circuit ink efficient drying device according to claim 1, characterized in that: A uniform wind mechanism is provided above the placement mechanism, the uniform wind mechanism comprising an air duct (31), an air blocking piece (32) and an air return plate (33), the air blocking piece (32) and the air return plate (33) are both connected to both sides of the inner wall of the oven (1), the air return plate (33) is provided above the air duct (31), there are a plurality of air ducts (31), and an air blocking piece (32) is provided below each air duct (31).

3. A circuit ink efficient drying device according to claim 2, characterized in that: The two sides of the air return plate (33) are arranged in an arc shape, and the wind blocking piece (32) is arranged in an arc shape.

4. A circuit ink efficient drying device according to claim 2, characterized in that: The oven (1) is provided with an air inlet channel (4), and the air inlet channel (4) is provided with a plurality of connecting pipes (41). The connecting pipes (41) penetrate through both sides of the oven (1) and are connected to both ends of the corresponding air ducts (31).

5. A circuit ink efficient drying device according to claim 4, characterized in that: The air inlet channel (4) is arranged in a U shape, and a warm air component is connected to the outside of the air inlet channel (4).

6. The circuit ink efficient drying device according to claim 1, characterized in that: A convection plate (5) is provided below the placement mechanism, and a plurality of convection arc sheets (51) are provided on the convection plate (5), and the convection arc sheets (51) are arranged corresponding to the ventilation openings (23).

7. The circuit ink efficient drying device according to claim 1, characterized in that: A plurality of exhaust pipes (6) are arranged above the oven (1), and a filter screen (61) is arranged on the exhaust pipe (6).

8. The circuit ink efficient drying device according to claim 1, characterized in that: The oven (1) is provided with an oven door (7) for opening and closing the oven (1).

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