Circuit board dispensing device

Abstract

The utility model relates to the field of circuit board production devices, in particular to a circuit board dispensing device which comprises a bottom plate, a supporting lead screw and a plurality of supporting rods are arranged above the bottom plate, the supporting lead screw is driven by a supporting motor to rotate, a sliding table is further arranged above the bottom plate, and the supporting lead screw penetrates through the sliding table and is in threaded connection with the sliding table. The supporting rod penetrates through the sliding table and is in sliding connection with the sliding table, supporting plates are further symmetrically fixed to the two sides of the sliding table, rotating shafts rotationally connected with the supporting plates are arranged on the supporting plates, one rotating shaft is fixed to the output end of the rotating motor, and a fixing frame is further arranged between the two rotating shafts; the two ends of the fixing frame are fixed to the rotating shafts respectively, vertical plates are further symmetrically fixed to the two sides of the bottom plate, a positioning lead screw and a sliding rod are further arranged between the two vertical plates, the positioning lead screw is driven by a positioning motor to rotate, and a sliding plate is further arranged between the two vertical plates. The device can be used for dispensing at any position on the circuit board.

Description

Technical Field

[0001] This invention relates to the field of circuit board production equipment, and more particularly to a circuit board dispensing device. Background Technology

[0002] PCB (Printed Circuit Board) dispensing technology is a key technology used in electronic manufacturing to fix and protect components. Dispensing refers to the application of adhesive in dots or lines to the parts that need to be bonded on a PCB using a dispensing machine at specific locations. Existing dispensing technologies mainly include contact dispensing and non-contact dispensing. Contact dispensing requires the front end of the dispensing machine to move along the Z-axis, while non-contact dispensing uses methods such as extrusion or ultrasonic waves to spray adhesive onto the PCB workpiece.

[0003] Patent application number CN202323327257.1 discloses a dispensing machine for circuit boards, including a base, a placement groove, a bidirectional threaded rod, a first clamping plate, a second clamping plate, a first motor, a placement platform, a fixed seat, a belt, a second motor, and a rotating wheel. The base is provided with a placement platform, and the base is provided with a placement groove near the placement platform. The placement groove is provided with a bidirectional threaded rod. One end of the bidirectional threaded rod is provided with a first motor, and one side of the bidirectional threaded rod is provided with a guide rod. Two sliding seats are sleeved on the bidirectional threaded rod and the guide rod. The two sliding seats are respectively provided with a first clamping plate and a second clamping plate. A positioning block is provided between the two sliding seats, and the two sliding seats are symmetrically arranged relative to the positioning block. After the circuit board is fixed on the placement platform, glue is applied to the circuit board through the dispensing head. However, for double-sided circuit boards, after applying glue to one side of the circuit board, it is also necessary to apply glue to the other side. After applying glue to one side of the circuit board, it is not convenient to flip the circuit board. The circuit board needs to be removed manually and flipped to apply glue to the other side, which is time-consuming and laborious, and it is difficult to improve the working efficiency of the dispensing device.

[0004] This invention was proposed in response to the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a circuit board dispensing device.

[0006] This invention can be achieved through the following technical solutions:

[0007] This invention discloses a circuit board dispensing device, comprising a base plate, a support screw and multiple support rods disposed above the base plate, the support screw being driven to rotate by a support motor, a slide table disposed above the base plate, the support screw passing through the slide table and threadedly connected to the slide table, and the support rods passing through the slide table and slidably connected to the slide table, wherein support plates are symmetrically fixed on both sides of the slide table, and each support plate is provided with a rotating shaft rotatably connected to the support plate, one of the rotating shafts being fixed to the output end of a rotating motor, and a fixing frame disposed between the two rotating shafts, the two ends of the fixing frame being respectively connected to the rotating shafts. The rotating shaft is fixed, and upright plates are symmetrically fixed on both sides of the base plate. A positioning screw and a sliding rod are also provided between the two upright plates. The positioning screw is driven to rotate by a positioning motor. A sliding plate is also provided between the two upright plates. The positioning screw passes through the sliding plate and is threadedly connected to the sliding plate. The sliding rod passes through the sliding plate and is slidably connected to the sliding plate. A dispensing screw and a positioning rod are also provided on the sliding plate. The dispensing screw is driven to rotate by a lifting motor. A slider threadedly connected to the dispensing screw is provided on the dispensing screw. The positioning rod passes through the slider and is slidably connected to the slider. A glue tube is also fixed on the slider. By inserting the circuit board to be glued into the fixed frame, the circuit board is fixed in place. A support motor drives a support screw to rotate. Since the support screw is threadedly connected to the slide, the slide moves in the direction of the support screw as the support screw rotates, and the circuit board moves laterally with the slide. A positioning motor drives a positioning screw to rotate, causing the slide plate to move longitudinally. The glue tube moves longitudinally with the slide plate, allowing any position on the circuit board to be moved below the glue tube. When dispensing glue to the circuit board, once the position on the circuit board to be glued is directly below the glue tube, a lifting motor drives a dispensing screw to rotate, lowering the glue tube. The dispensing needle below the glue tube reaches the designated position. By inflating the piston inside the glue tube, the piston moves, squeezing the glue inside the tube, and the glue is dispensed. After the needle is discharged, it performs glue dispensing on the circuit board. After glue dispensing is completed, the dispensing needle rises, and the circuit board and glue tube are moved again to dispense glue on another position on the circuit board. This cycle is repeated. When one side of the circuit board is fully glued, the rotary motor drives the rotary shaft to rotate. The rotary shaft rotates 180 degrees, and the circuit board rotates 180 degrees with the rotary shaft, which can flip the circuit board 180 degrees. After flipping the circuit board, glue dispensing is performed on the other side of the circuit board. After glue dispensing is completed, the circuit board is removed. This device can perform glue dispensing on any position on the circuit board, and after glue dispensing on one side of the circuit board, it can be flipped 180 degrees to perform glue dispensing on the other side, which greatly improves the production efficiency of circuit boards.

[0008] Preferably, the fixing frame has fixing grooves on both sides.

[0009] Preferably, a receiving cylinder is also fixed on the slide plate below the slider, and a receiving tray is fixed to the end of the piston rod of the receiving cylinder. When the dispensing needle moves after the circuit board is dispensed with glue, the receiving cylinder is activated, the piston rod on the receiving cylinder extends, and the receiving tray reaches below the dispensing needle. The receiving tray catches the glue dripping from the dispensing needle, preventing the glue from falling onto the circuit board.

[0010] Preferably, the support plate is further fixed with multiple limiting cylinders, each with a limiting rod fixed to its piston rod end. A limiting ring, corresponding to the limiting rod, is fixed to the fixing frame at a position on the fixing frame to cooperate with the limiting rod. During dispensing of adhesive to the circuit board, the limiting cylinders are activated, the limiting rods move, and the ends of the limiting rods insert into the limiting rings to support the fixing frame, preventing vibration of the circuit board during dispensing and ensuring the accuracy of the dispensing.

[0011] Compared with existing technologies, the present invention has the following advantages:

[0012] This device can perform glue dispensing operations at any position on the circuit board, and after dispensing glue on one side of the circuit board, it can be flipped 180 degrees to perform glue dispensing operations on the other side of the circuit board, which greatly improves the production efficiency of circuit boards. Attached Figure Description

[0013] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] In the diagram: 1. Base plate; 2. Support rod; 3. Support screw; 4. Support motor; 5. Slide table; 6. Support plate; 7. Rotating shaft; 8. Rotating motor; 9. Fixed frame; 10. Fixed groove; 11. Limiting cylinder; 12. Limiting ring; 13. Limiting rod; 14. Vertical plate; 15. Slide rod; 16. Positioning screw; 17. Positioning motor; 18. Slide plate; 19. Dispensing screw; 20. Positioning rod; 21. Lifting motor; 22. Slider; 23. Adhesive hose; 24. Receiving cylinder; 25. Receiving tray; Detailed Implementation

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0018] Example 1:

[0019] like Figures 1 to 2As shown, this embodiment discloses a circuit board dispensing device, including a base plate 1. A support screw 3 and multiple support rods 2 are arranged above the base plate 1. The support screw 3 is driven to rotate by a support motor 4. A slide table 5 is also arranged above the base plate 1. The support screw 3 passes through the slide table 5 and is threadedly connected to the slide table 5. The support rods 2 pass through the slide table 5 and are slidably connected to the slide table 5. Support plates 6 are symmetrically fixed on both sides of the slide table 5. Each support plate 6 is provided with a rotating shaft 7 rotatably connected to the support plate 6. One rotating shaft 7 is fixed to the output end of a rotating motor 8. A fixing frame 9 is arranged between the two rotating shafts 7, with both ends of the fixing frame 9 fixed to the two rotating shafts 7 respectively. Two... A vertical plate 14 is symmetrically fixed on the side. A positioning screw 16 and a sliding rod 15 are provided between the two vertical plates 14. The positioning screw 16 is driven to rotate by the positioning motor 17. A sliding plate 18 is also provided between the two vertical plates 14. The positioning screw 16 passes through the sliding plate 18 and is threadedly connected to the sliding plate 18. The sliding rod 15 passes through the sliding plate 18 and is slidably connected to the sliding plate 18. A dispensing screw 19 and a positioning rod 20 are also provided on the sliding plate 18. The dispensing screw 19 is driven to rotate by the lifting motor 21. A slider 22 is provided on the dispensing screw 19 and is threadedly connected to the dispensing screw 19. The positioning rod 20 passes through the slider 22 and is slidably connected to the slider 22. A glue tube 23 is also fixed on the slider 22. By inserting the circuit board to be glued into the fixed frame 9, the circuit board is fixed. The support motor 4 drives the support screw 3 to rotate. Since the support screw 3 is threadedly connected to the slide table 5, when the support screw 3 rotates, the slide table 5 moves in the direction of the support screw 3, and the circuit board moves laterally with the slide table 5. The positioning motor 17 drives the positioning screw 16 to rotate. When the positioning screw 16 rotates, the slide plate 18 moves longitudinally, and the glue tube 23 moves longitudinally with the slide plate 18. This allows any position on the circuit board to be moved below the glue tube 23. When the circuit board is being glued, after the glued position on the circuit board reaches directly below the glue tube 23, the lifting motor 21 drives the dispensing screw 19 to rotate, the glue tube 23 descends, and the dispensing needle below the glue tube 23 reaches the designated position. By inflating the piston position inside the glue tube 23, the piston moves. The adhesive is squeezed from the dispensing needle 23 and dispensed onto the circuit board. After dispensing, the dispensing needle rises, and the circuit board and dispensing needle 23 are moved again to dispense adhesive onto another location on the circuit board. This process is repeated. Once one side of the circuit board is fully dispensed, the rotary motor 8 drives the rotary shaft 7 to rotate 180 degrees. The circuit board rotates 180 degrees with the rotary shaft 7, allowing it to be flipped 180 degrees. After flipping, dispensing is performed on the other side of the circuit board. After dispensing, the circuit board is removed. This device can dispense adhesive onto any location on the circuit board, and after dispensing one side, the circuit board can be flipped 180 degrees to dispense adhesive onto the other side, greatly improving the production efficiency of the circuit board.

[0020] The fixed frame 9 has a fixed groove 10 on both sides.

[0021] The support plate 6 is also equipped with multiple limiting cylinders 11. Each limiting cylinder 11 has a limiting rod 13 fixed to its piston rod end. A limiting ring 12, which works in conjunction with the limiting rod 13, is fixed to the corresponding position on the fixing frame 9. When the circuit board is being glued, the limiting cylinders 11 are activated, the limiting rods 13 move, and the ends of the limiting rods 13 insert into the limiting rings 12 to support the fixing frame 9, preventing vibration of the circuit board during glue dispensing and ensuring the accuracy of the dispensing.

[0022] Example 2:

[0023] This embodiment discloses a circuit board dispensing device. Based on the structure and principle of Embodiment 1, this embodiment further includes a receiving cylinder 24 fixed on the slide plate 18 below the slider 22. A receiving tray 25 is fixed to the end of the piston rod of the receiving cylinder 24. When the dispensing needle moves after dispensing the circuit board, the receiving cylinder 24 is activated, the piston rod of the receiving cylinder 24 extends, and the receiving tray 25 reaches below the dispensing needle. The receiving tray 25 catches the glue dripping from the dispensing needle, preventing the glue from falling onto the circuit board.

[0024] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be considered within the scope of protection of the present invention.

Claims

1. A circuit board dispensing device, characterized in that, The system includes a base plate, on which a support screw and multiple support rods are mounted. The support screw is driven to rotate by a support motor. A slide is also mounted on top of the base plate. The support screw passes through the slide and is threadedly connected to it. The support rods pass through the slide and are slidably connected to it. Support plates are symmetrically fixed on both sides of the slide. Each support plate has a rotating shaft rotatably connected to it. One rotating shaft is fixed to the output end of a rotary motor. A fixing frame is provided between the two rotating shafts, with each end of the frame fixed to a rotating shaft. Symmetrical upright plates are fixed on both sides of the plate. A positioning screw and a sliding rod are provided between the two upright plates. The positioning screw is driven to rotate by a positioning motor. A sliding plate is also provided between the two upright plates. The positioning screw passes through the sliding plate and is threadedly connected to the sliding plate. The sliding rod passes through the sliding plate and is slidably connected to the sliding plate. A dispensing screw and a positioning rod are also provided on the sliding plate. The dispensing screw is driven to rotate by a lifting motor. A slider threadedly connected to the dispensing screw is provided on the dispensing screw. The positioning rod passes through the slider and is slidably connected to the slider. A glue tube is also fixed on the slider.

2. The circuit board dispensing device according to claim 1, characterized in that, The fixed frame has fixing grooves on both sides.

3. The circuit board dispensing device according to claim 1, characterized in that, A receiving cylinder is also fixed on the slide plate below the slider, and a receiving plate is fixed to the end of the piston rod of the receiving cylinder.

4. The circuit board dispensing device according to claim 1, characterized in that, The support plate is also fixed with multiple limiting cylinders. The piston rod of each limiting cylinder is fixed with a limiting rod. The fixed frame is fixed with a limiting ring at the position corresponding to the limiting rod, which works in conjunction with the limiting rod.

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