A desktop self-positioning dispensing device

Abstract

A desktop self-positioning dispensing device, comprising a base, wherein: the base is provided with a support plate, the support plate is provided with a slide rail, the slide rail is installed with a self-positioning rotary disc, the self-positioning rotary disc is internally installed with a driving turntable, the driving turntable is driven and controlled by a servo motor, the support plate is fixed with support columns on the left and right sides, the support columns are installed with a pressing plate above, the pressing plate is fixed with a dispensing slide rail, and the dispensing slide rail is provided with a dispensing nozzle. The automatic rotary disc structure is used to realize automatic feeding and positioning work, simple mechanical principle is adopted instead of complex electric control mode, production cost can be greatly saved, and better effect can be provided for enterprises with different needs.

Description

Technical Field

[0001] This invention belongs to the field of circuit board dispensing, specifically relating to a desktop self-positioning dispensing device. Background Technology

[0002] PCB board dispensing is a process of bonding, sealing, and waterproofing PCB chips in electronic products. It can effectively extend the service life and working life of chips on PCB circuit boards, and provide long-term and effective protection for sensitive circuit boards and electronic components in electronic devices, making the PCB board waterproof, dustproof, and corrosion-resistant.

[0003] Existing PCB dispensing machines, if they are to have a certain degree of automation, are expensive and not conducive to production cost control. At the same time, most existing dispensing machines are placed manually and require multiple calibrations and positioning. Since the dispensing machine needs to heat the adhesive, the melting adhesive has a certain corrosive odor, and long-term exposure to the environment can have a certain impact on the health of workers. Therefore, the existing PCB dispensing process should minimize manual operation as much as possible. There is a need to design a low-cost device that can balance cost and automation while ensuring the basic health and safety of personnel.

[0004] Therefore, a desktop self-positioning dispensing device is needed. Summary of the Invention

[0005] The above-mentioned objective of this invention is achieved through the following technical solution: a desktop self-positioning dispensing device, comprising a base, wherein: a support plate is provided on the base, a slide rail is provided on the support plate, a self-positioning rotating disk is mounted on the slide rail, a drive turntable is installed inside the self-positioning rotating disk, the drive turntable is driven and controlled by a servo motor, support columns are fixed on the left and right sides of the support plate, a pressure plate is installed above the support columns, a dispensing slide rail is fixed on the pressure plate, a dispensing nozzle is provided on the dispensing slide rail, an outlet is provided near the top of the support plate, and two positioning holes are provided on opposite sides of the PCB to be processed.

[0006] Preferably, the self-positioning rotating disk includes a circular track, on which rotating plates are evenly arranged, forming a dispensing chamber between the rotating plates. The rotating plates can swing unidirectionally via the rotating disk. A strong torsion spring is provided between the rotating plates and the rotating disk, which can control the rotating plates to automatically return to their original position after swinging. The rotating plates are fan blade-shaped, with one outermost end of the rotating plate being arc-shaped and the other being flat. A sliding retainer is provided at the bottom of the fixed side of the rotating plate, and a sliding retainer is provided on the rotating side of the rotating plate.

[0007] Preferably, the drive turntable includes a support frame, the inner side of which is connected to and controlled by the servo motor, and the outer side of the support frame is provided with a positioning pressure plate and an unfastening pressure plate. Both the positioning pressure plate and the unfastening pressure plate are inclined plates with one side being an arc surface and the other side being a flat surface, and the height of the positioning pressure plate and the height of the unfastening pressure plate are not the same.

[0008] Preferably, the height of the positioning pressure plate is the same as the height of the rotating plate, so that the rotating plate can rotate at the same height. The height of the unfastening pressure plate is higher than that of the rotating plate. When the unfastening pressure plate contacts the rotating plate, the rotating plate moves downward first and then rotates.

[0009] Preferably, the sliding fastener includes a sliding rail, the length of which matches the size of the PCB board. The sliding rail is provided with a buckle that matches the positioning hole on the PCB board. The buckle has an upper locking post and a lower locking post inside, and the contact surfaces of the upper locking post and the lower locking post are inclined, so that different heights have different unfastening effects.

[0010] Preferably, the second sliding fixture includes a sliding rail, the length of which matches the size of the PCB board, and a buckle is provided on the sliding rail, which matches the positioning hole on the PCB board.

[0011] Preferably, the discharge port is designed with a ramp, so that the processed PCB board can slide directly out of the dispensing chamber.

[0012] In summary, the present invention has at least one of the following beneficial technical effects:

[0013] This invention utilizes an automatic rotary table structure to achieve automatic material feeding and positioning. It employs simple mechanical principles rather than complex electrical control methods, which can greatly save production costs and provide better results for enterprises with different needs.

[0014] This invention achieves reverse positioning and forward rotation by utilizing the different effects of the drive turntable's different directions on the automatic rotary table structure. Simultaneously, the different heights of the unlocking and positioning plates enable self-locking and self-unlocking effects, eliminating the need for manual positioning and significantly saving positioning time. Furthermore, it keeps workers away from harsh dispensing environments, ensuring their health and safety. Attached Figure Description

[0015] Figure 1 This is an overall schematic diagram of the dispensing device of the present invention;

[0016] Figure 2This is a top view schematic diagram of the dispensing device of the present invention;

[0017] Figure 3 This is a cross-sectional schematic diagram of the dispensing device of the present invention;

[0018] Figure 4 This is a top view schematic diagram of the self-positioning rotating disk of the present invention;

[0019] Figure 5 This is a schematic cross-sectional view of the self-positioning rotary disk of the present invention;

[0020] Figure 6 This is a schematic diagram of the snap-fit ​​structure of the present invention;

[0021] Figure 7 This is the invention Figure 5 An enlarged diagram of the "E".

[0022] Attached reference numerals: 1. Base, 2. Support plate, 3. Slide rail, 4. Self-positioning rotary disk, 401. Circular track, 402. Rotating plate, 403. Dispensing chamber, 404. Rotating disc, 405. High-strength torsion spring, 406. Sliding fixture one, 407. Motion slide rail, 408. Buckle, 409. Upper locking post, 410. Lower locking post, 411. Sliding fixture two, 5. Drive turntable, 501. Support frame, 502. Positioning pressure plate, 503. Unlocking pressure plate, 6. Servo motor, 7. Support column, 8. Pressure plate, 9. Dispensing slide rail, 10. Dispensing nozzle, 11. Discharge port, 12. Positioning hole. Detailed Implementation

[0023] The above-mentioned objective of this invention is achieved through the following technical solution: a desktop self-positioning dispensing device, comprising a base 1, wherein: a support plate 2 is provided on the base 1, a slide rail 3 is provided on the support plate 2, a self-positioning rotating disk 4 is installed on the slide rail 3, a drive turntable 5 is installed inside the self-positioning rotating disk 4, the drive turntable 5 is driven and controlled by a servo motor 6, support columns 7 are fixed on the left and right sides of the support plate 2, a pressure plate 8 is installed above the support columns 7, a dispensing slide rail 9 is fixed on the pressure plate 8, a dispensing nozzle 10 is provided on the dispensing slide rail 9, an outlet 11 is provided near the top of the support plate 2, and two positioning holes 12 are provided on opposite sides of the PCB to be processed.

[0024] Specifically, the self-positioning rotating disk 4 includes a circular track 401, on which rotating plates 402 are evenly arranged. The rotating plates 402 form a dispensing chamber 403. The rotating plates 402 can swing unidirectionally through a rotating disk 404. A strong torsion spring 405 is provided between the rotating plates 402 and the rotating disk 404. The strong torsion spring 405 can control the rotating plates 402 to automatically return to their original position after swinging. The rotating plates 402 are fan blade-shaped. The outermost end of the rotating plates 402 is arc-shaped on one side and flat on the other side. A sliding retainer 406 is provided at the bottom of the fixed side of the rotating plates 402, and a sliding retainer 411 is provided on the rotating side of the rotating plates.

[0025] Specifically, the drive turntable 5 includes a support frame 501. The inner side of the support frame 501 is connected to and controlled by the servo motor 6. The outer side of the support frame 501 is provided with a positioning pressure plate 502 and an unfastening pressure plate 503. Both the positioning pressure plate 502 and the unfastening pressure plate 503 are inclined plates with one side being an arc surface and the other side being a flat surface. The height of the positioning pressure plate 502 is not the same as the height of the unfastening pressure plate 503.

[0026] Specifically, the height of the positioning plate 502 is the same as the height of the rotating plate 402, so that the rotating plate 402 can rotate at the same height. The height of the unfastening plate 503 is higher than that of the rotating plate 402. When the unfastening plate 503 contacts the rotating plate 402, the rotating plate 402 moves downward first and then rotates.

[0027] Specifically, the sliding fastener 406 includes a sliding rail 407, the length of which matches the size of the PCB board. The sliding rail 407 is provided with a buckle 408, which matches the positioning hole 12 on the PCB board. The buckle 408 is provided with an upper locking post 409 and a lower locking post 410. The contact surfaces of the upper locking post 409 and the lower locking post 410 are set at an angle, so that different heights have different unfastening effects.

[0028] Specifically, the sliding fixture 411 includes a sliding rail 407, the length of which matches the size of the PCB board, and a buckle 408 provided on the sliding rail 407, which matches the positioning hole 12 on the PCB board.

[0029] Specifically, the discharge port 11 is designed with a ramp, which allows the finished PCB board to slide directly out of the dispensing chamber.

[0030] Working principle:

[0031] When the dispensing device starts working, the PCB board to be processed is placed into the dispensing chamber 403 from the right side of the discharge port 11. At this time, the servo motor 6 first drives the drive turntable 5 to rotate counterclockwise by 30°. At this time, since the positioning pressure plate 502 on the drive turntable 5 is in contact with the rotatable surface of the rotating plate 402, the positioning pressure plate 502 will push the rotating plate 402 to rotate upward. At this time, the sliding retainer 1 406 and sliding retainer 2 411 in the dispensing chamber 403 formed by the rotating plate 402 will be engaged by the buckle 408 into the two positioning holes 12 of the PCB board to be processed under the pressure of the rotating plate 402. After that, the servo motor 6 rotates clockwise by 30°, and the positioning plate 5 on the drive turntable 5... The pressure plate 502 contacts the rotating plate 402. At the same time, driven by the strong torsion spring 405, the rotating plate 402 resets, and the positioning pressure plate 502 also drives the circular track 401 to rotate, so that the dispensing chamber 403 enters the next position. At this time, due to the change in the position of the rotating plate 402, the PCB board to be processed will adaptively extend in the motion slide rail 407 of the sliding fixture 1 406 and the sliding fixture 2 411. Finally, the position is fixed under the pull of the sliding fixture 1 406 and the sliding fixture 2 411, which can automatically position the PCB board. At this time, the dispensing chamber 403, which has rotated to the dispensing nozzle, starts to work under the action of the slide rail 3.

[0032] After the PCB board dispensing is completed, the servo motor 6 continues to drive the drive turntable 5 to rotate. When the processed dispensing chamber 403 rotates to the left-side release plate 503, the servo motor 6 also first rotates counterclockwise by 30°. At this time, since the release plate 503 on the drive turntable 5 is in contact with the rotatable surface of the rotating plate 402, the positioning plate 502 will push the rotating plate 402 to rotate upward. Since the heights of the release plate 503 and the rotating plate 402 are not the same, the rotating plate 402 will be raised a certain distance under the pressure of the release plate 503. At this time, the processed PCB board is just stuck on the upper inclined surface of the clip 408, and then it is slidably fixed. The first device 406 and the second sliding fixture 411 press against each other, squeezing the positioning hole of the PCB board out of the buckle 408. Then, the servo motor 6 rotates 30° clockwise, driving the release plate 503 on the turntable 5 to contact the rotating plate 402. At the same time, driven by the strong torsion spring 405, the rotating plate 402 resets, and the release plate 503 also drives the circular track 401 to rotate, so that the dispensing chamber 403 enters the next position. At the same time, the processed PCB board will be in the dispensing chamber 403 without any limit device. When the dispensing chamber rotates to the outlet, the PCB board will slide out from the outlet, and at this time one cycle is completed.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A desktop self-positioning dispensing device comprising a base (1), wherein: The base (1) is provided with a support plate (2), the support plate (2) is provided with a slide rail (3), the slide rail (3) is installed with a self-positioning rotary disc (4), the self-positioning rotary disc (4) is internally installed with a driving turntable (5), the driving turntable (5) is driven and controlled through a servo motor (6), the support plate (2) is fixed with a support column (7) on the left and right sides, a pressing plate (8) is installed on the upper side of the support column (7), a point glue slide rail (9) is fixed on the pressing plate (8), a point glue nozzle (10) is arranged on the point glue slide rail (9), a discharge port (11) is arranged on the support plate (2) close to the upper side, and two positioning holes (12) are arranged on the opposite side of the to-be-processed PCB; the self-positioning rotary disc (4) comprises a circular track (401), the circular track (401) is uniformly provided with rotating plates (402), the rotating plates (402) form a point glue chamber (403) therebetween, the rotating plates (402) can be unidirectionally swung through a rotating disc (404), a strong torsion spring (405) is arranged between the rotating plates (402) and the rotating disc (404), the strong torsion spring (405) can control the rotating plates (402) to automatically return after swinging, the rotating plates (402) are in the shape of fan blades, one side of the outermost end of the rotating plates (402) is arc-shaped, and the other side is planar, a sliding fixator one (406) is arranged at the bottom of the fixed side of the rotating plates (402), and a sliding fixator two (411) is arranged at the rotating side of the rotating plates; the discharge port (11) is designed in a slope type, so that the PCB after processing can be directly slid out of the point glue chamber.

2. The desktop self-positioning dispensing device according to claim 1, wherein: The driving turntable (5) comprises a support frame (501), the inner side of the support frame (501) is connected and controlled with the servo motor (6), the outer side of the support frame (501) is provided with a positioning pressing plate (502) and an unlocking pressing plate (503), the positioning pressing plate (502) and the unlocking pressing plate (503) are both inclined plates with one side being arc-shaped and the other side being planar, and the height of the positioning pressing plate (502) is inconsistent with the height of the unlocking pressing plate (503).

3. A desktop self-positioning dispensing device according to claim 2, wherein: The height of the positioning pressing plate (502) is the same as the height of the rotating plate (402), so that the rotating plate (402) can rotate at the same height, the height of the unlocking pressing plate (503) is higher than that of the rotating plate (402), when the unlocking pressing plate (503) contacts the rotating plate (402), the rotating plate (402) is first moved downward and then rotated.

4. The desktop self-positioning dispensing device according to claim 1, wherein: The sliding fixer one (406) comprises a movement slide rail (407) with a length matched with the size of the PCB board, the movement slide rail (407) is provided with a buckle (408) matched with the positioning hole (12) on the PCB board, the buckle (408) is provided with an upper clamping column (409) and a lower clamping column (410), the contact surfaces of the upper clamping column (409) and the lower clamping column (410) are provided with inclined surfaces, so that different heights have different unbuckling effects.

5. The desktop self-positioning dispensing device according to claim 1, wherein: The sliding fixer two (411) comprises a movement slide rail (407) with a length matched with the size of the PCB board, the movement slide rail (407) is provided with a buckle (408) matched with the positioning hole (12) on the PCB board.

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