Circuit board drying device

Abstract

The invention relates to a circuit board drying device which comprises a drying barrel, a supporting mechanism driven by a motor is arranged in the drying barrel, a locking mechanism is arranged on the supporting mechanism, an adsorption layer is arranged on the inner wall of the drying barrel, a drying mechanism is further arranged in the drying barrel, and the drying mechanism is driven by a lifting mechanism connected with the motor. The supporting mechanism comprises a plurality of sets of pore plates which are arranged on the vertical pipe side by side up and down, baffles are arranged on the vertical pipe below each set of pore plates, the drying mechanism comprises an annular base arranged at the top in the drying barrel, a hot air channel is formed in the annular base, and air outlet holes communicated with the hot air channel are evenly formed in the side wall of the annular base. The lifting mechanism comprises a protruding seat arranged on the top of the annular seat, a lead screw is arranged on the protruding seat, and the lead screw is connected with an output shaft of the motor through a transmission belt. The circuit board is ventilated and heated while being swung to remove water, so that the drying efficiency of the circuit board is improved.

Description

Technical Field

[0001] The invention relates to the field of circuit board processing, and in particular to a circuit board drying device. Background Art

[0002] In the production process of circuit boards, many wet manufacturing processes are involved, such as circuit etching and surface roughening. After these processes, the circuit boards need to be dried in time. Currently, the circuit boards are dried directly by heating, and the drying efficiency is low. Therefore, in response to the above situation, there is a circuit board drying box with patent number CN221710160U, which shakes off the moisture on the circuit board by rotation, and then takes away the moisture on the circuit board by hot air.

[0003] However, the above-mentioned equipment has the following defects when in use, such as: the hydraulic rod drives the pressing screen to fix the circuit board on the supporting screen, and the rotating mechanism drives the above-mentioned components to rotate through the horizontal transmission shaft. First, the locking stability may be insufficient, resulting in the circuit board fixed by the supporting screen and the pressing screen to rotate to the bottom. The circuit board slides from the bottom opening between the two under the influence of gravity, which is not conducive to improving the stability of the circuit board. Secondly, driving the hydraulic rod to rotate is likely to cause the wires or pipes connected to it to be pulled off due to excessive curling and winding, thereby affecting their normal use. Thirdly, a large amount of liquid thrown off from the top drips onto the circuit board below, which seriously affects the drying efficiency of the circuit board below. Summary of the invention

[0004] The purpose of the present invention is to provide a circuit board drying device.

[0005] The technical problem of the present invention is mainly solved by the following technical solutions:

[0006] A circuit board drying device, comprising a drying barrel, wherein a supporting mechanism for supporting the circuit board is arranged in the drying barrel, wherein the supporting mechanism is driven by a motor, wherein a locking mechanism for locking and fixing the circuit board is arranged on the supporting mechanism, wherein a sponge adsorption layer is arranged on the inner wall of the drying barrel, wherein a drying mechanism for drying and removing water from the adsorption layer and the circuit board is also arranged in the drying barrel, wherein the drying mechanism is driven by a lifting mechanism connected to an output shaft of the motor;

[0007] The support mechanism comprises a plurality of groups of orifice plates arranged in parallel on the vertical tube, wherein a baffle is arranged on the vertical tube below each group of orifice plates, and the output shaft of the motor is connected to the vertical tube;

[0008] The drying mechanism comprises an annular seat arranged at the top of the drying barrel, a hot air channel connected to the hot air blower through a hose is arranged in the annular seat, and air outlet holes connected to the hot air channel are evenly arranged on the side wall of the annular seat;

[0009] The lifting mechanism comprises a convex seat arranged on the top of the annular seat, a screw rod is arranged on the convex seat, and the screw rod is connected to the output shaft of the motor through a transmission belt.

[0010] Preferably, the diameter of the upper orifice plate in the two adjacent groups of orifice plates is larger than that of the lower orifice plate, the diameter of the orifice plate is smaller than the diameter of the baffle plate below it, and the orifice plate is connected to the baffle plate below it via a protrusion.

[0011] Preferably, the number of the screw rods is at least two groups, wherein both ends of the screw rods are fixed to the upper and lower side walls of the drying barrel through bearings, the convex seat is provided with a screw hole screwed to the screw rod, the screw rod is located in the opening of the annular seat, and the orifice plate and the baffle are both located in the circular opening formed between multiple groups of screw rods.

[0012] Preferably, the motor output shaft and the lead screw are both provided with pulleys for fixing corresponding transmission belts.

[0013] Preferably, guiding slopes are provided on the corner edges at the upper and lower ends of the outer side wall of the annular seat, and a heating pipe is provided in the hot air channel.

[0014] Preferably, a drain pipe is provided at the bottom of the drying barrel, and a switch door is provided on the side wall of the drying barrel.

[0015] Preferably, the locking mechanism includes a mesh plate arranged above the perforated plate and used for the vertical tube to pass through, sliding openings are correspondingly arranged on the two side walls of the vertical tube between the mesh plate and the perforated plate below it, a cross bar passing through two groups of sliding openings and connected to the mesh plate is arranged in the vertical tube, a vertical rod connecting multiple groups of upper and lower cross rods is arranged in the vertical tube, the top end of the vertical rod extends to the outside of the top of the vertical tube, and a top plate located above the drying barrel is fixed to the top of the vertical tube through a bearing, and the top plate is driven by a hydraulic rod.

[0016] The beneficial effects of the present invention are as follows: the present invention uses a locking mechanism to fix the circuit board in order on the upper and lower multiple groups of orifice plates in the supporting mechanism, and drives the circuit board and the locking mechanism to rotate together by a motor-driven orifice plate and other components, thereby shaking off the liquid on the circuit board to dewater it. While improving the stability of the circuit board, the baffle and the adsorption layer can effectively prevent the thrown-off liquid from dripping onto the circuit board below and affecting its dewatering and drying work. At the same time, the motor also drives the drying mechanism to move up and down through the lifting mechanism, so that the hot air flow sprayed from the drying mechanism can fully dry the circuit board in the rotating process, and the annular seat that moves up and down in the drying mechanism can also dewater the adsorption layer to facilitate its subsequent continued use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 is a cross-sectional view of the present invention;

[0019] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0020] Figure 4 yes Figure 2 Enlarged view of point B in the middle.

[0021] In the figure: 1. drying barrel, 2. supporting mechanism, 21. vertical pipe, 22. orifice plate, 23. baffle, 3. motor, 4. locking mechanism, 41. mesh plate, 42. sliding opening, 43. cross bar, 44. vertical bar, 45. top plate, 46. hydraulic rod, 5. adsorption layer, 6. drying mechanism, 61. annular seat, 62. hot air channel, 63. air outlet, 7. lifting mechanism, 71. convex seat, 72. screw rod, 73. transmission belt, 8. bump, 9. guide slope, 10. heating tube, 11. door opening and closing. DETAILED DESCRIPTION

[0022] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0023] A circuit board drying device comprises a drying barrel 1, a drain pipe is arranged at the bottom of the drying barrel 1, and a switch door 11 is arranged on the side wall of the drying barrel 1:

[0024] The drying barrel 1 is provided with a supporting mechanism 2 for supporting the circuit board, the supporting mechanism 2 is driven by a motor 3, the supporting mechanism 2 is provided with a locking mechanism 4 for locking and fixing the circuit board, a sponge adsorption layer 5 is provided on the inner wall of the drying barrel 1, and the drying barrel 1 is also provided with a drying mechanism 6 for drying and removing water from the adsorption layer 5 and the circuit board, and the drying mechanism 6 is driven by a lifting mechanism 7 connected to the output shaft of the motor 3;

[0025] The support mechanism 2 includes a plurality of groups of orifice plates 22 arranged in parallel on a vertical tube 21, wherein a baffle plate 23 is arranged on the vertical tube 21 below each group of orifice plates 22, the diameter of the upper orifice plate 22 in the two adjacent groups of orifice plates 22 is larger than the diameter of the lower orifice plate 22, and the diameter of the orifice plate 22 is smaller than the diameter of the baffle plate 23 below it, the orifice plate 22 and the baffle plate 23 below it are connected by a protrusion 8, and the output shaft of the motor 3 is connected to the vertical tube 21;

[0026] The drying mechanism 6 comprises an annular seat 61 disposed at the top of the drying barrel 1, a hot air channel 62 connected to the hot air blower through a hose is disposed in the annular seat 61, and air outlet holes 63 connected to the hot air channel 62 are evenly disposed on the side wall of the annular seat 61;

[0027] The lifting mechanism 7 includes a convex seat 71 arranged on the top of the annular seat 61 , and a screw rod 72 is arranged on the convex seat 71 . The screw rod 72 is connected to the output shaft of the motor 3 through a transmission belt 73 .

[0028] like Figure 1 As shown, the number of the screw rods 72 is at least two groups, wherein both ends of the screw rods 72 are fixed to the upper and lower side walls of the drying barrel 1 through bearings, the convex seat 71 is provided with a screw hole screwed to the screw rod 72, the screw rod 72 is located in the opening of the annular seat 61, and the orifice plate 22 and the baffle plate 23 are both located in the circular opening formed between the multiple groups of screw rods 72.

[0029] In this embodiment, pulleys for fixing corresponding transmission belts 73 are provided on the output shaft of the motor 3 and the screw rod 72 .

[0030] like Figure 3 As shown, guiding slopes 9 are provided on the corner edges of the upper and lower ends of the outer side wall of the annular seat 61 , and a heating pipe 10 is provided in the hot air channel 62 .

[0031] The locking mechanism 4 includes a mesh plate 41 arranged above the orifice plate 22 and used for the vertical pipe 21 to pass through, and sliding openings 42 are correspondingly arranged on the two side walls of the vertical pipe 21 between the mesh plate 41 and the orifice plate 22 below it. A cross bar 43 is arranged in the vertical pipe 21 to pass through two groups of sliding openings 42 and connected to the mesh plate 41. A vertical rod 44 is arranged in the vertical pipe 21 to connect multiple groups of cross bars 43 above and below. The top end of the vertical rod 44 extends to the outside of the top of the vertical pipe 21. A top plate 45 located above the drying barrel 1 is fixed to the top of the vertical pipe 21 through a bearing, and the top plate 45 is driven by a hydraulic rod 46.

[0032] When in use, open the switch door 11, place the circuit board in order above the upper and lower groups of orifice plates 22, then the hydraulic rod 46 drives the top plate 45 to drive the vertical rod 44 to slide downward in the vertical tube 21, and also drives the cross bar 43 to move downward in the sliding opening 42, wherein the cross bar 43 drives the corresponding mesh plate 41 to move downward, and at this time, the mesh plate 41 that moves downward locks and fixes the circuit board on the corresponding orifice plate 22;

[0033] The motor 3 drives the vertical tube 21 to drive the baffle 23, the orifice plate 22 and the circuit board above to rotate rapidly, thereby throwing off the liquid on the circuit board so that it falls through the aperture of the orifice plate 22. In this process, the vertical tube 21 also pushes against the cross bar 43 through the sliding opening 42 to drive the vertical rod 44 to rotate on the bearing on the top plate 45, and drives the mesh plate 41 and the orifice plate 22 and other components to rotate in the same direction to prevent the locking mechanism 4 from affecting the normal rotation of the support mechanism 2. The vertical rod 44 rotates on the bearing on the top plate 45, so that the hydraulic rod 46 can drive the vertical rod 44, the cross bar 43 and the mesh plate 41 to lock and fix the circuit board on the orifice plate 22 through the top plate 45 and the bearing, and at the same time, it will not affect the rotation of the circuit board clamped and fixed by the orifice plate 22 and the mesh plate 41.

[0034] In the above process, the baffle 23 blocks the liquid falling from the aperture of the orifice plate 22 to prevent it from contacting the circuit board above the lower orifice plate 22, wherein part of the liquid falls through the edge of the baffle 23. At this time, since the diameter of the upper baffle 23 is larger than the diameter of the lower orifice plate 22 and the baffle 23, it is not easy for the falling liquid to fall on the lower baffle 23 or the orifice plate 22, which indirectly reduces the probability of the falling liquid contacting the lower circuit board. At the same time, the liquid thrown off from the edge of the baffle 23 will splash onto the adsorption layer 5 and be adsorbed by it, preventing the thrown liquid from colliding with the hard side wall of the drying barrel 1 and rebounding to the orifice plate 22 or the baffle 23 and contacting the circuit board.

[0035] When the motor 3 drives the vertical pipe 21 to rotate, it also drives the screw rod 72 to rotate in the screw hole on the convex seat 71 through the transmission belt 73 to drive the annular seat 61 to move downward. At this time, the hot air flow introduced into the hot air channel 62 of the annular seat 61 is ejected through the air outlet 63, thereby playing a role of blowing and heating the circuit board in the rotating process on the support mechanism 2 to improve its drying efficiency. When the annular seat 61 moves down to the lower part of the drying barrel 1, the motor 3 reverses to indirectly drive the annular seat 61 to move upward, thereby making the annular seat 61 reciprocate up and down, thereby playing a role of blowing, heating and drying the circuit board. At the same time, when the annular seat 61 moves up and down, the guiding slope 9 guides the sponge material to absorb The adsorption layer 5 slides to the outside of the annular seat 61. At this time, the annular seat 61 moving up and down will squeeze the adsorption layer 5, and then squeeze and remove the liquid adsorbed inside it to facilitate the next step of continuing to adsorb the liquid dropped by the orifice plate 22, or the baffle 23 or the circuit board. At the same time, the hot air flow is heated for the second time by the heating tube 10 in the hot air channel 62 and then flows out through the air outlet 63. At this time, the hot air flow will heat the side wall of the hot air channel 62 to a certain extent. At this time, the outer wall of the heated annular seat 61 will transfer the heat to the adsorption layer 5, so that the annular seat 61 can not only squeeze and remove water from the adsorption layer 5, but also directly heat and dry the adsorption layer 5 through the heat of its side wall.

[0036] The present invention is described in detail above, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A circuit board drying device, comprising a drying barrel, characterized in that: The drying barrel is provided with a supporting mechanism for supporting the circuit board, the supporting mechanism is driven by a motor, the supporting mechanism is provided with a locking mechanism for locking and fixing the circuit board, the inner wall of the drying barrel is provided with a sponge adsorption layer, the drying barrel is also provided with a drying mechanism for drying and removing water from the adsorption layer and the circuit board, and the drying mechanism is driven by a lifting mechanism connected to the motor output shaft; The support mechanism comprises a plurality of groups of orifice plates arranged in parallel on the vertical tube, wherein a baffle is arranged on the vertical tube below each group of orifice plates, and the output shaft of the motor is connected to the vertical tube; The drying mechanism comprises an annular seat arranged at the top of the drying barrel, a hot air channel connected to the hot air blower through a hose is arranged in the annular seat, and air outlet holes connected to the hot air channel are evenly arranged on the side wall of the annular seat; The lifting mechanism comprises a convex seat arranged on the top of the annular seat, a screw rod is arranged on the convex seat, and the screw rod is connected to the output shaft of the motor through a transmission belt.

2. A circuit board drying device according to claim 1, characterized in that: The diameter of the upper orifice plate in the two adjacent groups of upper and lower orifice plates is larger than that of the lower orifice plate, and the diameter of the orifice plate is smaller than that of the baffle plate below it. The orifice plate is connected to the baffle plate below it through a protrusion.

3. A circuit board drying device according to claim 1, characterized in that: The number of the screw rods is at least two groups, wherein both ends of the screw rods are fixed on the upper and lower side walls of the drying barrel through bearings, the convex seat is provided with a screw hole screwed to the screw rod, the screw rod is located in the opening of the annular seat, and the orifice plate and the baffle are both located in the circular opening formed between the multiple groups of screw rods.

4. A circuit board drying device according to claim 1, characterized in that: The motor output shaft and the lead screw are both provided with pulleys for fixing corresponding transmission belts.

5. A circuit board drying device according to claim 1, characterized in that: Guide slopes are arranged on the corner edges of the upper and lower ends of the outer side wall of the annular seat, and a heating pipe is arranged in the hot air channel.

6. A circuit board drying device according to claim 1, characterized in that: A drain pipe is arranged at the bottom of the drying barrel, and a switch door is arranged on the side wall of the drying barrel.

7. A circuit board drying device according to claim 1, characterized in that: The locking mechanism includes a mesh plate arranged above the orifice plate and used for the vertical pipe to pass through, sliding openings are correspondingly arranged on the two side walls of the vertical pipe between the mesh plate and the orifice plate below it, a cross bar passing through two groups of sliding openings and connected to the mesh plate is arranged in the vertical pipe, a vertical rod connecting multiple groups of upper and lower cross rods is arranged in the vertical pipe, the top end of the vertical rod extends to the outside of the top of the vertical pipe, and a top plate located above the drying barrel is fixed to the top of the vertical pipe through a bearing, and the top plate is driven by a hydraulic rod.

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