UV furnace for dispensing and curing circuit board

Abstract

The utility model discloses a UV (ultraviolet) furnace for dispensing and curing a circuit board, and relates to the technical field of UV furnaces for curing the circuit board. The UV furnace for dispensing and curing the circuit board comprises a workbench, a feeding frame is arranged on the left side of the workbench, limiting grooves are formed in the inner walls of the front side and the rear side of the feeding frame correspondingly, a pushing assembly is arranged on the left side of the feeding frame, and a lifting plate is slidably connected between the inner walls of the front side and the rear side of the feeding frame; two limiting sliding grooves are formed in the upper surface of the lifting plate, a sliding groove is formed in the upper surface of the lifting plate, a moving groove is formed in the inner wall of the limiting groove in the rear side, the rear side of the moving groove extends out of the surface of the rear side of the feeding frame, and a two-way threaded rod is rotationally connected to the inner wall of the sliding groove; and the rear end of the two-way threaded rod rotationally penetrates out of the rear side surface of the lifting plate, so that when the size of the circuit board changes, a worker can conveniently adjust the distance between the two material racks, and therefore the two material racks are adaptive to different circuit boards.

Description

Technical Field

[0001] The utility model relates to the technical field of UV furnaces for curing circuit boards, and particularly relates to a UV furnace for dispensing and curing circuit boards. Background Art

[0002] During the processing of circuit boards, dispensing treatment is required. Circuit board dispensing is a process to protect some weak components of the PCB. It is a process to protect the product. Applying UV glue enables the product to play roles such as sticking, potting, insulating, fixing, and having a smooth surface. After dispensing, a UV furnace is needed to quickly cure the colloid.

[0003] For example, in the Chinese utility model patent with the patent publication number CN219560332U, it includes a transmission mechanism. A UV irradiation box is fixedly connected to the top of the transmission mechanism. A loading component is placed on one side of the transmission mechanism, and a collection component is placed on the other side of the transmission mechanism. The loading component includes two vertical plates. A table is fixedly connected to one side of the two vertical plates. An electric cylinder is fixedly installed on the top of the table. A U-shaped box plate is movably sleeved inside the two vertical plates. Automatic loading can be carried out by providing the loading component.

[0004] This patent can place multiple dispensed circuit boards inside a storage box, store multiple storage boxes respectively in the U-shaped grooves inside the U-shaped box plate. The electric cylinder can push the topmost storage box inside the U-shaped box plate to the top of the transmission mechanism, lift the U-shaped box plate through a threaded structure to raise the stored multiple storage boxes, and then push the second storage box by the electric cylinder, and so on to achieve automatic loading. However, due to the fixed distance between the inner walls of the U-shaped box plate, once the size of the circuit board changes, it will cause it to be unusable, and thus the applicable range of the overall device is small and it cannot adapt to circuit boards of various sizes. In view of this, we propose a UV furnace for dispensing and curing circuit boards. Summary of the Utility Model

[0005] The purpose of the utility model is to at least solve one of the technical problems existing in the prior art, and provide a UV furnace for dispensing and curing circuit boards, which can solve the problem that the distance between the inner walls of the U-shaped box plate is fixed and it cannot be applied to circuit boards of different sizes.

[0006] To achieve the above object, the present utility model provides the following technical solutions: a UV furnace for dispensing and curing of circuit boards, including a workbench, a loading rack is arranged on the left side of the workbench, limiting grooves are respectively opened on the front and rear inner walls of the loading rack, a pushing component is arranged on the left side of the loading rack, a lifting plate is slidably connected between the front and rear inner walls of the loading rack, two limiting sliding grooves are opened on the upper surface of the lifting plate, a sliding groove is opened on the upper surface of the lifting plate, a moving groove is opened on the inner wall of the rear limiting groove, and the rear side of the moving groove extends out of the rear surface of the loading rack. A bidirectional threaded rod is rotatably connected to the inner wall of the sliding groove, the rear end of the bidirectional threaded rod rotatably penetrates out of the rear surface of the lifting plate, the rear end of the bidirectional threaded rod extends out of the rear surface of the loading rack through the moving groove, two material racks are fixedly connected to the upper surface of the lifting plate, two threaded sleeves are respectively fixedly connected to the lower surfaces of the two material racks, and the two threaded sleeves are respectively threadedly sleeved on two opposite threaded sections of the bidirectional threaded rod. Placing grooves are respectively opened on the adjacent side surfaces of the two material racks, and a lifting component is arranged on the lifting plate.

[0007] Preferably, the lifting component includes a connecting block, the connecting block is fixedly connected to the lower surface of the lifting plate, a threaded rod is threadedly sleeved inside the connecting block, limiting blocks are respectively fixedly connected to the front and rear side surfaces of the lifting plate, the limiting blocks are adapted to the limiting grooves, the lower end of the threaded rod threadedly penetrates out of the lower surface of the connecting block, and the lower end of the threaded rod is fixedly connected with a motor, and the motor is installed on the ground.

[0008] Preferably, two sliding blocks are respectively fixedly connected to the lower surfaces of the two material racks, the sliding blocks are adapted to the limiting sliding grooves, a transmission component is arranged on the upper surface of the workbench, and a curing box is fixedly connected to the upper surface of the workbench.

[0009] Preferably, a storage rack is arranged on the right side of the workbench, a second motor is fixedly connected to the upper surface of the storage rack, an output end of the second motor is fixedly connected with a second threaded rod, the second threaded rod is rotatably connected to the bottom wall of the storage rack, and a limiting rod is fixedly connected between the upper and lower inner walls of the storage rack.

[0010] Preferably, a storage plate is slidably sleeved on the outer surface of the limiting rod, the storage plate is threadedly sleeved on the outer surface of the second threaded rod, a U-shaped baffle is arranged on the left side surface of the storage rack, and the storage plate is slidably connected to the inner wall of the U-shaped baffle.

[0011] Preferably, a driving box is fixedly connected to the right side surface of the storage rack, a driving disk is rotatably connected to the right side surface of the driving box, a rotating rod is fixedly connected to the left side surface of the driving disk, the right end of the rotating rod rotatably penetrates into the interior of the driving box, and a first bevel gear is fixedly connected to the left end of the rotating rod.

[0012] Preferably, worm gears are fixedly connected to the inner walls of the front and rear sides of the drive box respectively. The proximal ends of the two worm gears are fixedly connected with second bevel gears respectively. Both of the second bevel gears are meshed and connected with the first bevel gear. A second rotating rod is rotatably connected to the bottom wall of the drive box.

[0013] Preferably, a worm wheel is sleeved on the outer surface of the second rotating rod. The outer surface of the worm wheel is meshed and connected with the worm gear. The upper end of the second rotating rod rotatably penetrates through the upper surface of the drive box. A connecting plate is fixedly connected to the upper end of the second rotating rod. A third motor is fixedly connected to the upper surface of the connecting plate. The output end of the third motor rotatably penetrates through the lower surface of the connecting plate. A guiding disc is fixedly connected to the output end of the third motor.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] (1) For the UV furnace for dispensing and curing of circuit boards, when the size of the circuit board changes and the distance between the two material racks needs to be adjusted, by rotating the bidirectional threaded rod, the two material racks are driven to move in opposite directions through the cooperation of the bidirectional threaded rod and the threaded sleeve, so as to adjust the distance between the two material racks. Then, the circuit board is placed inside the two placement slots, and the lifting component is used to drive the lifting plate to rise. After the lifting plate rises, the two material racks are driven to move synchronously. Then, the feeding component is cooperated to complete the feeding of the circuit board. Through the above structure, when the size of the circuit board changes, the staff can more conveniently adjust the distance between the two material racks, so as to adapt to different circuit boards.

[0016] (2) For the UV furnace for dispensing and curing of circuit boards, after the two worm gears rotate, the two second rotating rods are driven to rotate synchronously by the worm wheel. When the two second rotating rods rotate, the connecting plate is used to drive the third motor and the guiding disc to rotate around the second rotating rod, so as to adjust the distance between the two guiding discs. After the circuit board is placed on the storage board, the second motor is used to drive the storage board to move in the vertical direction through the cooperation of the second threaded rod. At the same time, the U-shaped baffle can be used to prevent the circuit board from falling. Through the above structure, not only can the distance between the two guiding discs be adjusted at any time when collecting the circuit board, so as to avoid the problem that the circuit board cannot contact the guiding disc and then cannot move, but also the U-shaped baffle can be used to prevent the circuit board from sliding off the storage board due to the vibration generated during the operation of the machine itself. Description of the Drawings

[0017] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0018] Figure 1 It is a schematic structural diagram of a UV furnace for dispensing and curing of circuit boards of the present utility model;

[0019] Figure 2 Schematic diagram of the loading rack of the present utility model;

[0020] Figure 3 Schematic diagram of the separation of the rack of the present utility model;

[0021] Figure 4 Schematic diagram of the interior of the drive box of the present utility model;

[0022] Figure 5 is Figure 3 Enlarged view of part A in

[0023] Reference numerals: 1, workbench; 2, loading rack; 3, limit groove; 4, pushing component; 5, lifting plate; 6, limit sliding groove; 7, sliding groove; 8, movement groove; 9, bidirectional threaded rod; 10, rack; 11, threaded sleeve; 12, placing groove; 13, connecting block; 14, threaded rod; 15, motor; 16, sliding block; 17, transmission component; 18, curing box; 19, storage rack; 20, second motor; 21, second threaded rod; 22, limit rod; 23, storage plate; 24, U-shaped baffle; 25, drive box; 26, drive disk; 27, rotating rod; 28, first bevel gear; 29, worm; 30, second bevel gear; 31, second rotating rod; 32, worm gear; 33, connecting plate; 34, third motor; 35, guiding disk. Detailed implementation manners

[0024] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0025] Please refer to Figures 1-5, the present utility model provides a technical solution: a UV furnace for dispensing and curing of circuit boards, including a workbench 1, a loading rack 2 is arranged on the left side of the workbench 1, limiting grooves 3 are respectively opened on the front and rear inner walls of the loading rack 2, a pushing component 4 is arranged on the left side of the loading rack 2, a lifting plate 5 is slidably connected between the front and rear inner walls of the loading rack 2, two limiting sliding grooves 6 are opened on the upper surface of the lifting plate 5, a sliding groove 7 is opened on the upper surface of the lifting plate 5, a movement groove 8 is opened on the inner wall of the rear limiting groove 3, the rear side of the movement groove 8 extends out of the rear surface of the loading rack 2, a bidirectional threaded rod 9 is rotatably connected to the inner wall of the sliding groove 7, the rear end of the bidirectional threaded rod 9 rotatably penetrates out of the rear surface of the lifting plate 5, the rear end of the bidirectional threaded rod 9 extends out of the rear surface of the loading rack 2 through the movement groove 8, two material racks 10 are fixedly connected to the upper surface of the lifting plate 5, two threaded sleeves 11 are respectively fixedly connected to the lower surfaces of the two material racks 10, the two threaded sleeves 11 are respectively sleeved on two opposite threaded sections of the bidirectional threaded rod 9, placing grooves 12 are respectively opened on the side surfaces of the two material racks 10 close to each other, a lifting component is arranged on the lifting plate 5, the pushing component 4 described in the text is an existing structure, and specifically, reference can be made to the patent publication number CN219560332U5. When the specification size of the circuit board changes and the distance between the two material racks 10 needs to be adjusted, by rotating the bidirectional threaded rod 9, the two material racks 10 are driven to move in opposite directions through the cooperation of the bidirectional threaded rod 9 and the threaded sleeves 11, so as to adjust the distance between the two material racks 10. Then, the circuit board is placed inside the two placing grooves 12, and the lifting plate 5 is driven to rise by means of the lifting component. After the lifting plate 5 rises, the two material racks 10 are synchronously driven to move. Then, the feeding of the circuit board is completed in cooperation with the pushing component 4. Through the above structure, when the size of the circuit board changes, the staff can more conveniently complete the adjustment of the distance between the two material racks 10, so as to adapt to different circuit boards.

[0026] Further, the lifting assembly includes a connecting block 13 fixedly connected to the lower surface of the lifting plate 5. A threaded rod 14 is sleeved inside the connecting block 13. Limiting blocks are fixedly connected to the front and rear surfaces of the lifting plate 5 respectively, and the limiting blocks are adapted to the limiting grooves 3. The lower end of the threaded rod 14 threadedly penetrates through the lower surface of the connecting block 13, and a motor 15 is fixedly connected to the lower end of the threaded rod 14. The motor 15 is installed on the ground. Two sliding blocks 16 are fixedly connected to the lower surfaces of the two material racks 10 respectively, and the sliding blocks 16 are adapted to the limiting sliding grooves 6. A transmission assembly 17 is arranged on the upper surface of the workbench 1. A curing box 18 is fixedly connected to the upper surface of the workbench 1. A storage rack 19 is arranged on the right side of the workbench 1. A second motor 20 is fixedly connected to the upper surface of the storage rack 19. The output end of the second motor 20 is fixedly connected to a second threaded rod 21, and the second threaded rod 21 is rotatably connected to the bottom wall of the storage rack 19. A limiting rod 22 is fixedly connected between the upper and lower inner walls of the storage rack 19. A storage plate 23 is slidably sleeved on the outer surface of the limiting rod 22, and the storage plate 23 is threadedly sleeved on the outer surface of the second threaded rod 21. A U-shaped baffle 24 is arranged on the left side surface of the storage rack 19, and the storage plate 23 is slidably connected to the inner wall of the U-shaped baffle 24. A driving box 25 is fixedly connected to the right side surface of the storage rack 19. A driving disk 26 is rotatably connected to the right side surface of the driving box 25. A rotating rod 27 is fixedly connected to the left side surface of the driving disk 26. The right end of the rotating rod 27 rotatably penetrates into the interior of the driving box 25. A first bevel gear 28 is fixedly connected to the left end of the rotating rod 27. Worms 29 are fixedly connected to the front and rear inner walls of the driving box 25 respectively. Second bevel gears 30 are fixedly connected to the adjacent ends of the two worms 29 respectively. Both of the second bevel gears 30 are meshed with the first bevel gear 28. A second rotating rod 31 is rotatably connected to the bottom wall of the driving box 25. A worm gear 32 is sleeved on the outer surface of the second rotating rod 31. The outer surface of the worm gear 32 is meshed with the worm 29. The upper end of the second rotating rod 31 rotatably penetrates through the upper surface of the driving box 25. A connecting plate 33 is fixedly connected to the upper end of the second rotating rod 31. A third motor 34 is fixedly connected to the upper surface of the connecting plate 33. The output end of the third motor 34 rotatably penetrates through the lower surface of the connecting plate 33. A guiding disk 35 is fixedly connected to the output end of the third motor 34. The transmission assembly 17 described in the text is a prior structure, and specifically, reference can be made to the existing patent publication number CN219560332U. When lifting, the motor 15 drives the threaded rod 14 to rotate. Since the movement trajectory of the lifting plate 5 is restricted by the limiting blocks and the limiting grooves 3, when the threaded rod 14 rotates, the lifting plate 5 will be synchronously driven to move in the vertical direction. At the same time, after the circuit board is cured through the cooperation of the transmission assembly 17 and the curing box 18, the transmission assembly 17 is used to transfer the circuit board to the storage plate 23. During transmission, the third motor 34 can be used to synchronously drive the guiding disk 35 to rotate, thereby using the guiding disk 35 to give power to the circuit board. At the same time, when it is necessary to adjust the distance between the two guiding disks 35,By rotating the driving disk 26 to drive the rotating rod 27 to rotate, after the rotating rod 27 rotates, it synchronously drives the first bevel gear 28 to rotate. After the first bevel gear 28 rotates, it synchronously drives two worm gears 29 by using two second bevel gears 30. After the two worm gears 29 rotate, they synchronously drive two second rotating rods 31 by using worm wheels 32. When the two second rotating rods 31 rotate, they drive the third motor 34 and the guiding disk 35 to rotate around the second rotating rod 31 by using the connecting plate 33, thereby adjusting the distance between the two guiding disks 35. After the circuit board is placed on the storage board 23, the second motor 20 cooperates with the second threaded rod 21 to drive the storage board 23 to move in the vertical direction. At the same time, the U-shaped baffle 24 can be used to prevent the circuit board from falling. Through the above structure, not only can the distance between the two guiding disks 35 be adjusted at any time when collecting the circuit board, avoiding the problem that the circuit board cannot contact the guiding disk 35 and thus cannot move, but also the U-shaped baffle 24 can be used to prevent the circuit board from slipping off the storage board 23 due to the vibration generated during the operation of the machine itself.

[0027] Working principle: When the specification size of the circuit board changes and the distance between the two racks 10 needs to be adjusted, by rotating the bidirectional threaded rod 9, the bidirectional threaded rod 9 cooperates with the threaded sleeve 11 to drive the two racks 10 to move in opposite directions, thereby adjusting the distance between the two racks 10. Then, the circuit board is placed inside the two placement slots 12, and the lifting plate 5 is driven to rise by means of the lifting component. After the lifting plate 5 rises, it synchronously drives the two racks 10 to move, and then the feeding of the circuit board is completed by cooperating with the feeding component 4. When lifting, the motor 15 drives the threaded rod 14 to rotate. Since the movement trajectory of the lifting plate 5 is restricted by the limiting block and the limiting slot 3, when the threaded rod 14 rotates, it will synchronously drive the lifting plate 5 to move in the vertical direction. At the same time, after the circuit board is cured through the cooperation of the transmission component 17 and the curing box 18, the transmission component 17 is used to transfer the circuit board to the storage board 23. During transmission, the guiding disk 35 can be synchronously driven to rotate by the third motor 34, thereby giving power to the circuit board by using the guiding disk 35. At the same time, when the distance between the two guiding disks 35 needs to be adjusted, by rotating the driving disk 26 to drive the rotating rod 27 to rotate, after the rotating rod 27 rotates, it synchronously drives the first bevel gear 28 to rotate. After the first bevel gear 28 rotates, it synchronously drives two worm gears 29 by using two second bevel gears 30. After the two worm gears 29 rotate, they synchronously drive two second rotating rods 31 by using worm wheels 32. When the two second rotating rods 31 rotate, they drive the third motor 34 and the guiding disk 35 to rotate around the second rotating rod 31 by using the connecting plate 33, thereby adjusting the distance between the two guiding disks 35. After the circuit board is placed on the storage board 23, the second motor 20 cooperates with the second threaded rod 21 to drive the storage board 23 to move in the vertical direction. At the same time, the U-shaped baffle 24 can be used to prevent the circuit board from falling.

[0028] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A UV oven for curing glue dispensed on a circuit board, comprising a workbench (1), characterized in that: A loading rack (2) is arranged on the left side of the workbench (1), and the inner walls on the front and rear sides of the loading rack (2) are respectively provided with limiting grooves (3), and a pushing assembly (4) is arranged on the left side of the loading rack (2), and a lifting plate (5) is slidably connected between the inner walls on the front and rear sides of the loading rack (2), and two limiting sliding grooves (6) are arranged on the upper surface of the lifting plate (5), and a sliding groove (7) is arranged on the upper surface of the lifting plate (5), and a moving groove (8) is arranged on the inner wall of the limiting groove (3) on the rear side, and the rear side of the moving groove (8) extends out of the rear side surface of the loading rack (2), and the inner wall of the sliding groove (7) is rotatably connected with A bidirectional threaded rod (9), the rear end of which rotates to penetrate the rear surface of the lifting plate (5), and the rear end of which extends out of the rear surface of the loading rack (2) through the motion groove (8). The upper surface of the lifting plate (5) is fixedly connected to two racks (10), and the lower surfaces of the two racks (10) are respectively fixedly connected to threaded sleeves (11). The two threaded sleeves (11) are respectively threadedly sleeved on two opposite threads of the bidirectional threaded rod (9), and the adjacent side surfaces of the two racks (10) are respectively provided with placement grooves (12), and a lifting assembly is provided on the lifting plate (5).

2. A UV oven for curing printed circuit boards according to claim 1, characterized in that: The lifting assembly includes a connecting block (13), the connecting block (13) is fixedly connected to the lower surface of the lifting plate (5), the internal thread sleeve of the connecting block (13) is provided with a threaded rod (14), the front and rear side surfaces of the lifting plate (5) are respectively fixedly connected with limit blocks, the limit blocks are adapted to the limit grooves (3), the lower end of the threaded rod (14) is threaded through the lower surface of the connecting block (13), the lower end of the threaded rod (14) is fixedly connected to a motor (15), and the motor (15) is installed on the ground.

3. A UV oven for curing glue for circuit boards according to claim 1, characterized in that: Two sliding blocks (16) are fixedly connected to the lower surfaces of the two material racks (10), respectively. The sliding blocks (16) are adapted to the limiting slide grooves (6). A transmission component (17) is arranged on the upper surface of the workbench (1), and a curing box (18) is fixedly connected to the upper surface of the workbench (1).

4. A UV oven for curing glue for circuit boards according to claim 3, characterized in that: A storage rack (19) is arranged on the right side of the workbench (1), a second motor (20) is fixedly connected to the upper surface of the storage rack (19), a second threaded rod (21) is fixedly connected to the output end of the second motor (20), the second threaded rod (21) is rotatably connected to the bottom wall of the storage rack (19), and a limiting rod (22) is fixedly connected between the upper and lower inner walls of the storage rack (19).

5. A UV oven for curing glue for circuit boards according to claim 4, characterized in that: The outer surface of the limit rod (22) is slidably sleeved with a storage plate (23), and the storage plate (23) is threadedly sleeved on the outer surface of the second threaded rod (21). The left side surface of the storage rack (19) is provided with a U-shaped baffle (24), and the storage plate (23) is slidably connected to the inner wall of the U-shaped baffle (24).

6. A UV oven for curing printed circuit boards according to claim 5, characterized in that: The right side surface of the storage rack (19) is fixedly connected to a driving box (25), the right side surface of the driving box (25) is rotatably connected to a driving disk (26), the left side surface of the driving disk (26) is fixedly connected to a rotating rod (27), the right end of the rotating rod (27) rotates and penetrates into the interior of the driving box (25), and the left end of the rotating rod (27) is fixedly connected to a first bevel gear (28).

7. A UV oven for curing glue for circuit boards according to claim 6, characterized in that: The inner walls of the front and rear sides of the drive box (25) are respectively fixedly connected with worm gears (29); the adjacent ends of the two worm gears (29) are respectively fixedly connected with second bevel gears (30); the two second bevel gears (30) are both meshedly connected with the first bevel gear (28); and the bottom wall of the drive box (25) is rotatably connected with a second rotating rod (31).

8. A UV oven for curing printed circuit boards according to claim 7, characterized in that: The outer surface of the second rotating rod (31) is sleeved with a worm wheel (32), and the outer surface of the worm wheel (32) is meshed with the worm (29). The upper end of the second rotating rod (31) rotates to pass through the upper surface of the driving box (25). The upper end of the second rotating rod (31) is fixedly connected to a connecting plate (33), and the upper surface of the connecting plate (33) is fixedly connected to a third motor (34). The output end of the third motor (34) rotates to pass through the lower surface of the connecting plate (33), and the output end of the third motor (34) is fixedly connected to a guide plate (35).

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