Curing equipment for circuit board coating

Abstract

The utility model discloses curing equipment for circuit board coating, which relates to the technical field of circuit board coating and comprises a bottom plate, a curing box fixedly mounted in the middle of the upper end of the bottom plate, a gear ring moving mechanism arranged in the middle of the upper end of the curing box, and shielding mechanisms arranged on two sides of the curing box. A circuit board double-sided curing moving mechanism is arranged in the middle of the upper end of the bottom plate and comprises a circuit board double-sided rotating assembly, and the circuit board double-sided rotating assembly comprises two circuit board limiting plates which are symmetrically arranged; the circuit board double-face rotating assembly is used for rotating the circuit boards clamped between the two circuit board limiting plates, the circuit board double-face curing moving mechanism is used for moving and rotating the multiple circuit boards, and the gear ring moving mechanism comprises a gear ring body. According to the circuit board double-face curing moving mechanism, double faces of a plurality of circuit boards can be cured at the same time, air circulation can be accelerated in the curing process, and the curing efficiency of the circuit boards is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board coating technology, specifically to a curing device for circuit board coating. Background Technology

[0002] Circuit board coating refers to applying a protective material (usually conformal coating) to the surface of a printed circuit board to improve its environmental resistance and reliability. The main purpose of coating is to protect the circuit board from factors such as moisture, dust, chemicals, and temperature changes, thereby extending the service life of the equipment.

[0003] For example, utility model patent CN223067286U discloses a curing device for coating circuit boards, relating to the field of circuit board technology. It includes a mounting table, a moving assembly, a clamping assembly, and a drying assembly. The moving assembly includes a sliding rail, a threaded rotating rod, a threaded slider, and a driving component. The sliding rail is mounted on the mounting table. The threaded rotating rod and the threaded slider are disposed within the sliding rail. Both ends of the threaded rotating rod pass through the sliding rail and are rotatably connected to it. The threaded slider is sleeved on the threaded rotating rod and threadedly connected to it. The threaded slider is slidably connected to the sliding rail. The driving component is located on one side of the sliding rail and cooperates with the threaded rotating rod. The clamping component is mounted on the threaded slider, which solves the problems of current curing equipment that uses conveyor belts to transport double-sided coated circuit boards, easily damaging the coating and resulting in poor coating effect, as well as the inability to fix the circuit boards during transport. However, there is a problem that only one circuit board can be cured at a time when curing is required. This leads to the phenomenon that when a large number of circuit boards need to be cured, they can only be cured one after another, ultimately reducing the overall curing efficiency of a large number of circuit boards and thus reducing the overall production efficiency of circuit boards. To address this, we propose a curing device for circuit board coating. Utility Model Content

[0004] The purpose of this invention is to provide a curing device for coating circuit boards, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a curing device for coating circuit boards, comprising a base plate, a curing chamber fixedly mounted at the upper center of the base plate, a gear ring moving mechanism disposed at the upper center of the curing chamber, shielding mechanisms disposed on both sides of the curing chamber, a circuit board double-sided curing moving mechanism disposed at the upper center of the base plate, the circuit board double-sided curing moving mechanism comprising a circuit board double-sided rotating assembly, the circuit board double-sided rotating assembly comprising two symmetrically arranged circuit board limiting plates, the circuit board double-sided rotating assembly being used to rotate the circuit board clamped between the two circuit board limiting plates, the circuit board double-sided curing moving mechanism being used to move and rotate multiple circuit boards, the gear ring moving mechanism comprising a gear ring body, the gear ring moving mechanism being used to move the gear ring body vertically, and the shielding mechanisms being used to shield the sides of the curing chamber.

[0006] Preferably, the circuit board double-sided rotating assembly further includes a C-shaped frame. A ventilation hole is provided on the lower outer side of the C-shaped frame. Both arms of the C-shaped frame are rotatably connected to follower shafts via bearings. A second electric push rod is fixedly installed at one end of each of the two follower shafts, close to each other. A circuit board limiting plate is fixedly installed at one end of each of the two second electric push rods, close to each other. The outer end of the outer follower shaft passes through the C-shaped frame. A first contact shaft is fixedly installed at the outer end of the outer follower shaft. A large gear is fixedly installed at the outer end of the first contact shaft. A first pulley is fixedly installed in the middle of the outer end of the first contact shaft. A second pulley is provided below the first pulley. A belt is sleeved between the first pulley and the second pulley. A second contact shaft is fixedly installed at the end of the second pulley near the C-shaped frame. Multiple circumferentially distributed rotating fan blades are fixedly installed at the end of the second contact shaft near the C-shaped frame.

[0007] Preferably, a fixing strip is fixedly installed at the middle of the upper end of the base plate, a sliding groove is opened at the upper end of the fixing strip, a second stepper motor is fixedly installed at the outer end of the fixing strip, a rotating rod is fixedly installed at the output end of the second stepper motor, and a T-shaped slider is threadedly connected to the outer end of the rotating rod and the rotating rod passes through the T-shaped slider.

[0008] Preferably, a third stepper motor is fixedly installed on the front side of the lower end of the T-shaped slider, a third rotating shaft is fixedly installed on the output end of the third stepper motor, a first rotating gear is fixedly installed on the upper end of the third rotating shaft, a second rotating gear is meshed with the rear side of the first rotating gear, a fourth rotating shaft is fixedly installed on the surface of the second rotating gear and passes through the second rotating gear, the lower end of the fourth rotating shaft is rotatably connected to the T-shaped slider through a bearing, and a rotating plate is fixedly installed on the upper end of the fourth rotating shaft.

[0009] Preferably, the gear ring moving mechanism further includes a first electric push rod, the lower end of which is fixedly mounted with a curing box, and a U-shaped frame is fixedly mounted on the lower end of the first electric push rod. The gear ring body is fixedly mounted on the lower end of the U-shaped frame, and the gear ring body corresponds to the large gear.

[0010] Preferably, the shielding mechanism includes a first stepper motor, a curing box is fixedly installed at the inner end of the first stepper motor, a first rotating shaft is fixedly installed at the output end of the first stepper motor, the end of the first rotating shaft away from the first stepper motor is rotatably connected to the curing box through a bearing, and a shielding plate is fixedly installed at the middle of the outer end of the first rotating shaft.

[0011] Preferably, a through groove is provided on the lower side of the middle of the outer end of the baffle plate, and the inner width of the through groove is greater than the width of the fixing strip.

[0012] Preferably, the outer end of the second contact shaft is rotatably connected to an L-shaped fixing plate via a bearing, and the C-shaped frame is fixedly installed on the L-shaped fixing plate near the end of the C-shaped frame.

[0013] Preferably, the outer end of the rotating rod is provided with a threaded groove, and the end of the rotating rod away from the second stepper motor is rotatably connected to the fixing bar through a bearing.

[0014] Preferably, the outer end of the third rotating shaft is rotatably connected to the T-shaped slider via a bearing, and the third rotating shaft passes through the T-shaped slider.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model can simultaneously cure multiple circuit boards on both sides through a circuit board double-sided curing moving mechanism, and can accelerate the air circulation action during the curing process, thereby improving the curing efficiency of the circuit boards.

[0017] 2. This utility model can start the first stepper motor through the shielding mechanism. At this time, the output end of the first stepper motor drives the first rotating shaft to rotate, which in turn drives the shielding plate to rotate. At this time, the shielding plate rotates outward, opening the space on both sides of the curing box.

[0018] 3. This utility model can start the first electric push rod by means of a gear ring moving mechanism. At this time, the output end of the first electric push rod drives the U-shaped frame to move down, and the U-shaped frame drives the gear ring body to move down. The gear ring body can be activated when it comes into contact with the large gear. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0021] Figure 3 This is a cross-sectional view of the circuit board double-sided curing moving mechanism of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged view of the structure of section A in the middle;

[0023] Figure 5 This is a cross-sectional view of the double-sided rotating assembly of the circuit board of this utility model.

[0024] Figure 6 This is a schematic diagram of the gear ring moving mechanism of this utility model;

[0025] Figure 7 This is a schematic diagram of the shielding mechanism of this utility model.

[0026] In the diagram: 1. Base plate; 2. Curing box; 3. Shielding mechanism; 31. First stepper motor; 32. First rotating shaft; 33. Shielding plate; 34. Through slot; 4. Gear ring moving mechanism; 41. First electric push rod; 42. U-shaped frame; 43. Gear ring body; 5. Circuit board double-sided curing moving mechanism; 51. Fixing strip; 52. Slide groove; 53. Second stepper motor; 54. Rotating rod; 55. T-shaped slider; 56. Rotating plate; 57. Circuit board double-sided rotating assembly; 571. C-shaped... Frame; 572, Follower shaft; 573, Second electric push rod; 574, Circuit board limiting plate; 575, First contact shaft; 576, First pulley; 577, Large gear; 578, Belt; 579, Second pulley; 5710, Second contact shaft; 5711, L-shaped fixing plate; 5712, Rotating fan blade; 5713, Ventilation hole; 58, Third stepper motor; 59, Third rotating shaft; 510, First rotating gear; 511, Second rotating gear; 512, Fourth rotating shaft. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 - Figure 7This utility model provides a technical solution: a curing device for coating circuit boards, including a base plate 1, a curing chamber 2 fixedly installed at the upper center of the base plate 1, a gear ring moving mechanism 4 provided at the upper center of the curing chamber 2, shielding mechanisms 3 provided on both sides of the curing chamber 2, a circuit board double-sided curing moving mechanism 5 provided at the upper center of the base plate 1, the circuit board double-sided curing moving mechanism 5 including a circuit board double-sided rotating assembly 57, the circuit board double-sided rotating assembly 57 including two symmetrically arranged circuit board limiting plates 574, the circuit board double-sided rotating assembly 57 is used to rotate the circuit board clamped between the two circuit board limiting plates 574, the circuit board double-sided curing moving mechanism 5 is used to move and rotate multiple circuit boards, the gear ring moving mechanism 4 includes a gear ring body 43, the gear ring moving mechanism 4 is used to move the gear ring body 43 vertically, and the shielding mechanisms 3 are used to shield the sides of the curing chamber 2.

[0029] In this embodiment, the circuit board double-sided rotating assembly 57 further includes a C-shaped frame 571. A ventilation hole 5713 is provided on the lower side of the outer end of the C-shaped frame 571. Both arms of the C-shaped frame 571 are rotatably connected to follower shafts 572 via bearings. A second electric push rod 573 is fixedly installed at one end of each follower shaft 572, and a circuit board limiting plate 574 is fixedly installed at one end of each second electric push rod 573, close to each other. The outer end of the outer follower shaft 572 passes through the C-shaped frame 571, and a second electric push rod 573 is fixedly installed at the outer end of the outer follower shaft 572. A first contact shaft 575 is provided. A large gear 577 is fixedly installed at the outer end of the first contact shaft 575. A first pulley 576 is fixedly installed at the middle of the outer end of the first contact shaft 575. A second pulley 579 is provided at the lower part of the first pulley 576. A belt 578 is sleeved between the first pulley 576 and the second pulley 579. A second contact shaft 5710 is fixedly installed at the end of the second pulley 579 near the C-shaped frame 571. A plurality of rotating fan blades 5712 distributed in a circle are fixedly installed at the end of the second contact shaft 5710 near the C-shaped frame 571.

[0030] Specifically, the large gear 577 drives the first contact shaft 575 to rotate, which in turn drives the first pulley 576 to rotate. The first pulley 576 drives the second pulley 579 to rotate via the belt 578. The second pulley 579 drives the second contact shaft 5710 to rotate, which in turn drives the rotating fan blade 5712 to rotate. The air blown into the ventilation hole 5713 by the rotating fan blade 5712 circulates hot air on the circuit board. The first contact shaft 575 drives the follower shaft 572 connected to it to rotate. The follower shaft 572 drives the second electric push rod 573 and the circuit board limiting plate 574 to rotate. At this time, the two symmetrically arranged circuit board limiting plates 574 drive the circuit board clamped in them to rotate.

[0031] In this embodiment, a fixing strip 51 is fixedly installed in the middle of the upper end of the base plate 1. A groove 52 is opened at the upper end of the fixing strip 51. A second stepper motor 53 is fixedly installed at the outer end of the fixing strip 51. A rotating rod 54 is fixedly installed at the output end of the second stepper motor 53. A T-shaped slider 55 is threadedly connected to the outer end of the rotating rod 54 and the rotating rod 54 passes through the T-shaped slider 55.

[0032] Specifically, when multiple circuit boards need to be moved, the second stepper motor 53 can be started. The output of the second stepper motor 53 drives the rotating rod 54 to rotate, thereby driving the T-shaped slider 55 to slide stably in the groove 52.

[0033] In this embodiment, a third stepper motor 58 is fixedly installed on the front side of the lower end of the T-shaped slider 55, a third rotating shaft 59 is fixedly installed on the output end of the third stepper motor 58, a first rotating gear 510 is fixedly installed on the upper end of the third rotating shaft 59, a second rotating gear 511 is meshed with the rear side of the first rotating gear 510, a fourth rotating shaft 512 is fixedly installed on the surface of the second rotating gear 511 and the fourth rotating shaft 512 passes through the second rotating gear 511, the lower end of the fourth rotating shaft 512 is rotatably connected to the T-shaped slider 55 through a bearing, and a rotating plate 56 is fixedly installed on the upper end of the fourth rotating shaft 512.

[0034] Specifically, the third stepper motor 58 can be started at this time. The output of the third stepper motor 58 drives the third rotating shaft 59 to rotate, which in turn drives the first rotating gear 510 to rotate. The first rotating gear 510 drives the second rotating gear 511 to rotate, and the second rotating gear 511 drives the fourth gear and the rotating plate 56 to rotate.

[0035] In this embodiment, the gear ring moving mechanism 4 further includes a first electric push rod 41, a curing box 2 is fixedly installed at the lower end of the first electric push rod 41, a U-shaped frame 42 is fixedly installed at the lower end of the first electric push rod 41, a gear ring body 43 is fixedly installed at the lower end of the U-shaped frame 42, and the gear ring body 43 corresponds to the large gear 577.

[0036] Specifically, the gear ring moving mechanism 4 can start the first electric push rod 41. At this time, the output end of the first electric push rod 41 drives the U-shaped frame 42 to move down. At this time, the U-shaped frame 42 drives the gear ring body 43 to move down. The gear ring body 43 can be in contact with the large gear 577.

[0037] In this embodiment, the shielding mechanism 3 includes a first stepper motor 31, a curing box 2 is fixedly installed at the inner end of the first stepper motor 31, a first rotating shaft 32 is fixedly installed at the output end of the first stepper motor 31, the end of the first rotating shaft 32 away from the first stepper motor 31 is rotatably connected to the curing box 2 through a bearing, and a shielding plate 33 is fixedly installed at the middle of the outer end of the first rotating shaft 32.

[0038] Specifically, the first stepper motor 31 can be started by the shielding mechanism 3. At this time, the output end of the first stepper motor 31 drives the first rotating shaft 32 to rotate, which in turn drives the shielding plate 33 to rotate. At this time, the shielding plate 33 rotates outward, opening the space on both sides of the curing box 2.

[0039] In this embodiment, a through groove 34 is provided on the lower side of the middle of the outer end of the baffle plate 33, and the inner width of the through groove 34 is greater than the width of the fixing strip 51.

[0040] Specifically, ensure that the baffle 33 does not interfere with the fixing strip 51 during rotation.

[0041] In this embodiment, the outer end of the second contact shaft 5710 is rotatably connected to an L-shaped fixing plate 5711 via a bearing, and the C-shaped frame 571 is fixedly installed on one end of the L-shaped fixing plate 571 near the C-shaped frame 571.

[0042] Specifically, the L-shaped fixing plate 5711 can improve the stability of the second contact shaft 5710 during rotation.

[0043] In this embodiment, the outer end of the rotating rod 54 is provided with a threaded groove, and the end of the rotating rod 54 away from the second stepper motor 53 is rotatably connected to the fixing strip 51 through a bearing.

[0044] Specifically, ensure that the rotating rod 54 does not interfere with the fixed strip 51 during rotation.

[0045] In this embodiment, the outer end of the third rotating shaft 59 is rotatably connected to the T-shaped slider 55 through a bearing, and the third rotating shaft 59 passes through the T-shaped slider 55.

[0046] Specifically, ensure that the third rotating shaft 59 does not interfere with the T-shaped slider 55 during rotation.

[0047] Working Principle: When curing multiple circuit boards, the second electric push rods 573, symmetrically arranged in each group, are activated first. The circuit board is placed between two symmetrically arranged circuit board positioning plates 574. The output of each second electric push rod 573 drives the circuit board positioning plate 574 closer to the circuit board. Next, the second stepper motor 53 is activated. Its output drives the rotating rod 54 to rotate, thereby driving the T-shaped slider 55 to slide stably within the groove 52. Once the rotating plate 56 reaches the predetermined position, the power supply to the second stepper motor 53 is stopped. Next, the first electric push rod 41 is activated. Its output drives the U-shaped frame 42 to move downwards. The U-shaped frame 42 then drives the gear ring body 43 to move downwards. The gear ring body 43 contacts the large gear 577. Then, the third stepper motor 58 is activated. Its output drives the third rotating shaft 59 to rotate, thereby driving the first... The rotating gear 510 rotates, which in turn drives the second rotating gear 511 to rotate. The second rotating gear 511 then drives the fourth gear and the rotating plate 56 to rotate. During this process, the large gear 577 drives the first contact shaft 575 to rotate, which in turn drives the first pulley 576 to rotate. The first pulley 576 then drives the second pulley 579 to rotate via the belt 578. The second pulley 579 then drives the second contact shaft 5710 to rotate, which in turn drives the rotating fan blade 5712 to rotate. The air blown into the ventilation hole 5713 by the rotating fan blade 5712 circulates hot air on the circuit board. The first contact shaft 575 then drives the connected follower shaft 572 to rotate. The follower shaft 572 then drives the second electric push rod 573 and the circuit board limiting plate 574 to rotate. At this time, the two symmetrically arranged circuit board limiting plates 574 drive the circuit board clamped between them to rotate.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A curing apparatus for coating circuit boards, comprising a substrate (1), characterized in that: A curing box (2) is fixedly installed at the upper middle part of the base plate (1). A gear ring moving mechanism (4) is provided at the upper middle part of the curing box (2). A shielding mechanism (3) is provided on both sides of the curing box (2). A circuit board double-sided curing moving mechanism (5) is provided at the upper middle part of the base plate (1). The circuit board double-sided curing moving mechanism (5) includes a circuit board double-sided rotating assembly (57). The circuit board double-sided rotating assembly (57) includes two symmetrically arranged circuit board limiting plates (574). The circuit board double-sided rotating assembly (57) is used to rotate the circuit board clamped between the two circuit board limiting plates (574). The circuit board double-sided curing moving mechanism (5) is used to move and rotate multiple circuit boards. The gear ring moving mechanism (4) includes a gear ring body (43). The gear ring moving mechanism (4) is used to move the gear ring body (43) vertically. The shielding mechanism (3) is used to shield both sides of the curing box (2).

2. The curing equipment for circuit board coating according to claim 1, characterized in that: The circuit board double-sided rotating assembly (57) also includes a C-shaped frame (571). A ventilation hole (5713) is provided on the lower side of the outer end of the C-shaped frame (571). Both arms of the C-shaped frame (571) are rotatably connected to follower shafts (572) via bearings. A second electric push rod (573) is fixedly installed at one end of each of the two follower shafts (572) close to each other. A circuit board limiting plate (574) is fixedly installed at one end of each of the two second electric push rods (573) close to each other. The outer end of the outer follower shaft (572) passes through the C-shaped frame (571), and a first contact shaft is fixedly installed at the outer end of the outer follower shaft (572). 575), a large gear (577) is fixedly installed at the outer end of the first contact shaft (575), a first pulley (576) is fixedly installed at the middle of the outer end of the first contact shaft (575), a second pulley (579) is provided at the lower part of the first pulley (576), a belt (578) is sleeved between the first pulley (576) and the second pulley (579), a second contact shaft (5710) is fixedly installed at the end of the second pulley (579) near the C-shaped frame (571), and a plurality of rotating fan blades (5712) distributed in a circle are fixedly installed at the end of the second contact shaft (5710) near the C-shaped frame (571).

3. The curing equipment for circuit board coating according to claim 1, characterized in that: A fixing strip (51) is fixedly installed in the middle of the upper end of the base plate (1). A groove (52) is opened at the upper end of the fixing strip (51). A second stepper motor (53) is fixedly installed at the outer end of the fixing strip (51). A rotating rod (54) is fixedly installed at the output end of the second stepper motor (53). A T-shaped slider (55) is threadedly connected to the outer end of the rotating rod (54), and the rotating rod (54) passes through the T-shaped slider (55).

4. A curing apparatus for coating circuit boards according to claim 3, characterized in that: A third stepper motor (58) is fixedly installed on the front side of the lower end of the T-shaped slider (55). A third rotating shaft (59) is fixedly installed on the output end of the third stepper motor (58). A first rotating gear (510) is fixedly installed on the upper end of the third rotating shaft (59). A second rotating gear (511) is meshed with the rear side of the first rotating gear (510). A fourth rotating shaft (512) is fixedly installed on the surface of the second rotating gear (511) and passes through the second rotating gear (511). The lower end of the fourth rotating shaft (512) is rotatably connected to the T-shaped slider (55) through a bearing. A rotating plate (56) is fixedly installed on the upper end of the fourth rotating shaft (512).

5. A curing apparatus for coating circuit boards according to claim 2, characterized in that: The gear ring moving mechanism (4) also includes a first electric push rod (41), the lower end of which is fixedly installed with a curing box (2), and the lower end of which is fixedly installed with a U-shaped frame (42). The lower end of the U-shaped frame (42) is fixedly installed with a gear ring body (43), and the gear ring body (43) corresponds to the large gear (577).

6. A curing apparatus for coating circuit boards according to claim 3, characterized in that: The shielding mechanism (3) includes a first stepper motor (31), a curing box (2) is fixedly installed at the inner end of the first stepper motor (31), a first rotating shaft (32) is fixedly installed at the output end of the first stepper motor (31), the end of the first rotating shaft (32) away from the first stepper motor (31) is rotatably connected to the curing box (2) through a bearing, and a shielding plate (33) is fixedly installed at the middle of the outer end of the first rotating shaft (32).

7. A curing apparatus for coating circuit boards according to claim 6, characterized in that: The lower side of the middle part of the outer end of the shield (33) is provided with a through groove (34), and the inner width of the through groove (34) is greater than the width of the fixing strip (51).

8. A curing apparatus for coating circuit boards according to claim 2, characterized in that: The outer end of the second contact shaft (5710) is rotatably connected to an L-shaped fixing plate (5711) via a bearing. The L-shaped fixing plate (5711) is fixedly mounted on the C-shaped frame (571) at one end near the C-shaped frame (571).

9. A curing apparatus for coating circuit boards according to claim 3, characterized in that: The outer end of the rotating rod (54) is provided with a threaded groove, and the end of the rotating rod (54) away from the second stepper motor (53) is rotatably connected to the fixing bar (51) through a bearing.

10. A curing apparatus for coating circuit boards according to claim 4, characterized in that: The outer end of the third rotating shaft (59) is rotatably connected to the T-shaped slider (55) through a bearing, and the third rotating shaft (59) passes through the T-shaped slider (55).

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