PCB feeding and discharging machine

Abstract

The utility model discloses a printed circuit board (PCB) feeding and discharging machine which comprises a machine frame, a feeding mechanism and a discharging mechanism. The lifting mechanism is mounted on the rack and used for adjusting the height of the conveying frame; the conveying frame is of a double-layer structure, a plurality of sets of conveying units are transversely distributed and installed on the upper layer and the lower layer of the conveying frame, the conveying unit on the lower layer is used for conveying PCBs to CNC equipment for punching machining, and the conveying unit on the lower layer is used for transferring the machined PCBs away. And the conveying efficiency can be effectively improved, and the use requirements can be better met.

Description

Technical Field

[0001] This utility model relates to the field of PCB board processing technology, specifically a PCB board loading and unloading machine. Background Technology

[0002] PCB boards are commonly used electronic materials in our daily lives. The production process requires multiple steps, including cutting, grinding, drilling and positioning, drilling, silkscreening, etching, and installing electronic components. Positioning holes are used to position the board, and drilling is used to drill pre-drilled screw holes and mounting holes for electronic components on the copper-clad board. After the copper-clad board is drilled with positioning holes and the positioning pins are installed on the production line, it needs to be transferred to CNC equipment for drilling. In order to improve work efficiency, loading and unloading machines are usually used.

[0003] For example, the invention patent with authorization announcement number CN111747016B discloses an automatic PCB board loading and unloading machine. This device uses four sets of conveyor belt mechanisms, with gaps between two adjacent conveyor belts that match the width and thickness of the PCB board. This facilitates the use of the kinetic energy of the moving conveyor belts to drive the transport of the PCB board, thereby enabling automatic loading and unloading.

[0004] However, the device cannot position the PCB board during loading and unloading, which may cause the PCB board to shift during transport, affecting the transport efficiency. Furthermore, the device cannot perform loading and unloading operations simultaneously, reducing the processing efficiency of the PCB board. Utility Model Content

[0005] The purpose of this invention is to provide a PCB board loading and unloading machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A PCB board loading and unloading machine includes: a frame with wheels mounted on the lower end; a lifting mechanism mounted on the frame for adjusting the height of the conveyor frame; the conveyor frame has a double-layer structure, with multiple sets of conveying units horizontally distributed on the upper and lower layers, wherein the lower conveying unit is used to convey the PCB board to a CNC machine for drilling, and the lower conveying unit is used to transfer the processed PCB board away.

[0008] As a preferred embodiment, the lifting mechanism includes a lifting frame mounted on a frame, a lifting slide rail mounted on the lifting frame, a lifting slide block slidably mounted on the lifting slide rail, a lifting mounting seat for fixing the conveyor frame mounted on the lifting slide block, and a drive assembly for driving the lifting slide block to move up and down mounted on the lifting frame.

[0009] As a preferred embodiment, the drive assembly includes a reducer mounted on the lifting frame, the output end of the reducer being driven to a lifting screw rotatably mounted on the lifting frame, the input end of the reducer being driven to the output end of the lifting motor, and a lifting nut seat threaded onto the lifting screw, the lifting nut seat being fixedly connected to the lifting slide.

[0010] As a preferred embodiment, each of the conveying units includes a conveying component and a guiding component.

[0011] As a preferred embodiment, the conveying assembly includes a pair of conveying beams mounted on a conveying frame. Each conveying beam has a conveyor pulley rotatably mounted on both its front and rear sides. A conveyor belt is fitted between the conveyor pulleys. A conveying motor is also mounted on the conveying beam, and the output end of the conveying motor is drivenly connected to the shaft end of the conveyor pulley.

[0012] As a preferred embodiment, the guiding assembly includes a pair of guide bars mounted on a conveyor frame, each guide bar having a bent guide portion at its end, and the pair of guide portions forming a flared opening.

[0013] As a preferred embodiment, the lower guide portion is located on the rear side of the guide strip, and the upper guide portion is located on the front side of the guide strip.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by setting the guide part, the positioning bolt at the lower end of the PCB board can be guided into the guide bar, thereby facilitating the positioning of the PCB board by the guide bar and preventing the PCB board from shifting during transportation;

[0015] The processed PCB board is transferred away by the upper conveyor unit, and the PCB board to be processed is placed on the lower conveyor unit. Then, it is conveyed to the drilling worktable, allowing for simultaneous loading and unloading, which effectively improves processing efficiency and better meets usage requirements. This utility model has a reasonable structure, can perform simultaneous loading and unloading, and can position the PCB board during conveying, thus better meeting usage needs. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall three-dimensional structure of a PCB board loading and unloading machine;

[0017] Figure 2 A first-person perspective three-dimensional structural diagram of the lifting mechanism of a PCB board loading and unloading machine;

[0018] Figure 3 This is a second-view three-dimensional structural diagram of the lifting mechanism of a PCB board loading and unloading machine.

[0019] Figure 4This is a first-view three-dimensional structural diagram of the conveying unit of a PCB board loading and unloading machine;

[0020] Figure 5 This is a second-view three-dimensional structural diagram of the conveying unit of a PCB board loading and unloading machine;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of a PCB board loading and unloading machine.

[0022] In the diagram: 1. Frame; 11. Ground wheel; 12. PCB board; 13. Positioning bolt; 2. Lifting mechanism; 21. Lifting frame; 22. Lifting slide rail; 23. Lifting slide block; 24. Lifting mounting base; 25. Lifting motor; 26. Reducer; 27. Lifting screw; 28. Lifting nut seat; 3. Conveying unit; 31. Conveying frame; 32. Conveying beam; 33. Conveying pulley; 34. Guide wheel; 35. Conveying belt; 36. Conveying motor; 37. Guide bar; 38. Guide section. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0024] Example: Please refer to Figures 1-6 A PCB board loading and unloading machine includes: a frame 1, with a ground wheel 11 installed at the lower end of the frame 1; a lifting mechanism 2, installed on the frame 1, for adjusting the height of a conveyor frame 31; the conveyor frame 31 has a double-layer structure, with multiple sets of conveying units 3 horizontally distributed on the upper and lower layers of the conveyor frame 31, wherein the lower conveyor unit 3 is used to convey the PCB board 12 to a CNC machine for drilling processing, and the lower conveyor unit 3 is used to transfer the processed PCB board 12 away.

[0025] The working principle of this utility model is as follows: In specific use, the height of the conveyor frame 31 is adjusted by the lifting mechanism 2 so that the lower conveyor unit 3 moves to the same height as the drilling table of the CNC equipment. Then, the PCB board 12 to be processed is transferred to the drilling table of the CNC equipment by the lower conveyor unit 3 for drilling. At the same time, the lifting mechanism 2 drives the conveyor frame 31 to move down, so that the upper conveyor unit 3 moves to the height of the drilling table. After the drilling is completed, the CNC equipment pushes the drilled PCB board onto the upper conveyor unit 3 (a robot or electric cylinder can be used for pushing). Then, the lifting mechanism 2 drives the conveyor frame 31 to move up, so that the lower conveyor unit 3 moves to the height of the drilling table. At this time, the processed PCB board 12 is transferred away by the upper conveyor unit 3, and a new PCB board 12 to be processed is placed on the lower conveyor unit 3 and then transported to the drilling table. The loading and unloading work can be carried out simultaneously, which can effectively improve the processing efficiency and better meet the needs of use.

[0026] As a further embodiment, the lifting mechanism 2 includes a lifting frame 21 mounted on the frame 1, a lifting slide rail 22 mounted on the lifting frame 21, a lifting slide block 23 slidably mounted on the lifting slide rail 22, a lifting mounting seat 24 for fixing the conveyor frame 31 mounted on the lifting slide block 23, and a drive assembly for driving the lifting slide block 23 to rise and fall on the lifting frame 21. The drive assembly includes a reducer 26 mounted on the lifting frame 21, the output end of the reducer 26 being drivenly connected to a lifting screw 27 rotatably mounted on the lifting frame 21, and the input end of the reducer 26 being drivenly connected to the output end of the lifting motor 25. A lifting nut seat 28 is also threaded onto the lifting screw 27, and the lifting nut seat 28 is fixedly connected to the lifting slide block 23.

[0027] The working principle of the lifting mechanism 2 is as follows: When lifting, the lifting motor 25 is started, which drives the lifting screw 27 to rotate, thereby causing the lifting nut seat 28 threaded on the lifting screw 27 to move, which in turn drives the lifting slide 23 to move along the lifting slide rail 22. By controlling the forward and reverse rotation of the lifting motor 25, the lifting slide 23 can be lifted, thereby realizing the lifting of the conveyor frame 31.

[0028] As a further embodiment, each conveying unit 3 includes a conveying assembly and a guiding assembly. The conveying assembly includes a pair of conveying beams 32 mounted on a conveying frame 31. Conveyor pulleys 33 are rotatably mounted on both the front and rear sides of each conveying beam 32. A conveyor belt 35 is fitted between the conveyor pulleys 33. A conveying motor 36 is also mounted on the conveying beam 32, and the output end of the conveying motor 36 is drivenly connected to the shaft end of the conveyor pulleys 33. The guiding assembly includes a pair of guide bars 37 mounted on the conveying frame 31. Each guide bar 37 has a bent guide portion 38 at its end, and the pair of guide portions 38 form a trumpet-shaped opening. In this embodiment, a pair of guide wheels 34 are also rotatably mounted on both the front and rear sides of the conveying beams 32. By setting the guide wheels 34, the lower half of the conveyor belt 35 can be brought close to the conveying beams 32, preventing the conveyor belt 35 from contacting the conveying frame 31 and causing interference. The lower guide portion 38 is located behind the guide bar 37, and the upper guide portion 38 is located in front of the guide bar 37.

[0029] The working principle of the conveying unit 3 is as follows: by setting the guide part 38, the positioning bolt 13 at the lower end of the PCB board 12 can be guided into the guide bar 37, so that the guide bar 37 can position the PCB board and prevent the PCB board 12 from shifting during conveying. During conveying, the PCB board 12 is placed on the conveyor belt 35. Then, the conveyor motor 36 is started, and the conveyor belt pulley 33 is driven to rotate through the conveyor motor 36, thereby realizing the rotation of the conveyor belt 35, which in turn drives the PCB board 12 on the conveyor belt 35 to move synchronously, thus realizing the transfer of the PCB board.

[0030] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

Claims

1. A PCB board loading and unloading machine, characterized in that, include: A frame (1), wherein a ground wheel (11) is installed at the lower end of the frame (1); The lifting mechanism (2) is installed on the frame (1) and is used to adjust the height of the conveyor frame (31); The conveyor frame (31) has a double-layer structure. Multiple conveyor units (3) are installed horizontally on the upper and lower layers of the conveyor frame (31). The lower conveyor unit (3) is used to convey the PCB board (12) to the CNC equipment for drilling. The lower conveyor unit (3) is used to transfer the processed PCB board (12) away.

2. The PCB board loading and unloading machine according to claim 1, characterized in that: The lifting mechanism (2) includes a lifting frame (21) mounted on the frame (1), a lifting slide rail (22) mounted on the lifting frame (21), a lifting slide block (23) slidably mounted on the lifting slide rail (22), a lifting mounting seat (24) for fixing the conveyor frame (31) mounted on the lifting slide block (23), and a drive assembly for driving the lifting slide block (23) to lift.

3. A PCB board loading and unloading machine according to claim 2, characterized in that: The drive assembly includes a reducer (26) mounted on the lifting frame (21). The output end of the reducer (26) is driven to a lifting screw (27) rotatably mounted on the lifting frame (21). The input end of the reducer (26) is driven to the output end of the lifting motor (25). A lifting nut seat (28) is also threaded onto the lifting screw (27). The lifting nut seat (28) is fixedly connected to the lifting slide (23).

4. A PCB board loading and unloading machine according to claim 3, characterized in that: Each of the conveying units (3) includes a conveying component and a guiding component.

5. A PCB board loading and unloading machine according to claim 4, characterized in that: The conveying assembly includes a pair of conveying beams (32) mounted on a conveying frame (31). Each conveying beam (32) has a conveyor pulley (33) rotatably mounted on both its front and rear sides. A conveyor belt (35) is fitted between the conveyor pulleys (33). A conveying motor (36) is also mounted on the conveying beam (32). The output end of the conveying motor (36) is drivenly connected to the shaft end of the conveyor pulley (33).

6. A PCB board loading and unloading machine according to claim 5, characterized in that: The guiding assembly includes a pair of guide bars (37) mounted on a conveyor frame (31), each of the guide bars (37) having a bent guide portion (38) at its end, and the pair of guide portions (38) forming a flared opening.

7. A PCB board loading and unloading machine according to claim 6, characterized in that: The lower guide portion (38) is located on the rear side of the guide strip (37), and the upper guide portion (38) is located on the front side of the guide strip (37).

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