A PCB board changing channel output device

Abstract

The utility model proposes a PCB board changing and discharging device, comprising a feeding conveying device, a changing and discharging device, a qualified product conveying device and a non-qualified product discharging device; the changing and discharging device comprises a conveying frame, an intermediate plate and a bottom frame from top to bottom in sequence; a conveying belt is arranged on the conveying frame, an in-position detection sensor and a discharging sensor are arranged on the conveying frame, and a rotating shaft is fixedly connected to the bottom of the conveying frame; the middle part of the rotating shaft is rotatably connected to the intermediate plate, a first sensor and a second sensor are fixed on the intermediate plate, an induction trigger rod is fixed on the circumferential side of the rotating shaft, a driven gear is fixed on the lower end of the rotating shaft, a rotating driving motor is also fixed on the intermediate plate, a driving gear is fixed on the rotating shaft of the rotating driving motor, the driving gear and the driven gear are meshed, and a lifting device for driving the intermediate plate to lift is arranged at the bottom of the intermediate plate. The utility model has a high degree of automation, smooth conveying, and will not scratch the PCB board.

Description

Technical Field

[0001] The utility model relates to the field of PCB patch, in particular to a PCB board changing and outputting device. Background Art

[0002] After the PCB is mounted, it needs to go through AOI inspection. If the inspection fails, the AOI inspection device will sound an alarm and the PCB will be removed from the conveyor belt. The first generation of products we developed, such as the utility model patent with announcement number CN 211669098U, uses a push cylinder and a push plate to push unqualified PCBs from the conveyor belt to the inclined slide on the opposite side where unqualified products are discharged. In this way, there will be friction between the PCB and the conveyor belt, which is easy to scratch the PCB, and the PCB is not pushed away from the conveyor belt smoothly. Utility Model Content

[0003] The utility model provides a PCB board changing lane discharging device, which solves the problem that the PCB board is easily scratched and the pushing is not smooth when the unqualified PCB board is pushed off the conveyor belt by a pushing cylinder in the prior art.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A PCB board changing lane discharging device comprises a feeding conveying device, a lane changing discharging device, a qualified product conveying device and a unqualified product discharging device; the lane changing discharging device comprises a conveying frame, an intermediate plate and a bottom frame in order from top to bottom; a group of spaced and symmetrical conveying belts are arranged on the conveying frame, and a driving device for driving the conveying belt to circulate is connected to the conveying belt transmission; a position detection sensor for detecting the position of the PCB board is arranged on the conveying frame, and a discharging sensor for detecting the departure of the PCB board is also arranged at the outlet end of the conveying frame; a rotating shaft is fixedly connected to the bottom of the conveying frame; the middle part of the rotating shaft is rotatably connected to the intermediate plate, and a first sensor and a second sensor are fixed to the intermediate plate, and the first sensor is fixed to the intermediate plate. The sensor and the second sensor correspond to the directions of the qualified product conveying device and the unqualified product discharging device respectively. An induction trigger rod for triggering the first sensor and the second sensor is fixed on the circumferential side of the rotating shaft. A driven gear is fixed on the lower end of the rotating shaft. A rotating drive motor is also fixed on the middle plate. A driving gear is fixed on the rotating shaft of the rotating drive motor. The driving gear and the driven gear are meshed. A lifting device for driving the middle plate to rise and fall is provided at the bottom of the middle plate; the lifting device is installed on the base frame; the feed conveying device and the qualified product conveying device are provided with an avoidance space when the conveying frame rotates after descending, and the upper surface height of the unqualified product discharging device is lower than the bottom surface height after the conveying frame descends.

[0006] Further, the feed conveying device includes a feed conveying rack, on which a group of spaced and symmetrical feed conveyor belts are arranged, and the feed conveyor belts are transmission-connected to a first drive device that drives the feed conveyor belts to move in a circular motion; the qualified product conveying device includes a qualified product conveying rack, on which a group of spaced and symmetrical qualified product conveyor belts are arranged, and the qualified product conveyor belts are transmission-connected to a second drive device that drives the qualified product conveyor belts to move in a circular motion; the unqualified product discharging device includes an unqualified product discharging rack, on which a group of spaced and symmetrical unqualified product discharging conveyor belts are arranged, and the unqualified product discharging conveyor belts are transmission-connected to a third drive device that drives the unqualified product discharging conveyor belts to move in a circular motion; or the unqualified product discharging device has a downwardly inclined discharging plate.

[0007] Furthermore, the driving device includes an active roller, a driven roller and a driving motor, and the driving motor is transmission-connected to the active roller; the first driving device, the second driving device and the third driving device all have the same structure as the driving device.

[0008] Furthermore, the in-place detection sensor includes a laser emitter and a laser receiver, which are correspondingly fixed on both sides of the conveyor belt; the discharging sensor includes a laser emitter I and a laser receiver I, which are correspondingly fixed on both sides of the conveyor belt.

[0009] Furthermore, the first sensor and the second sensor are proximity sensors.

[0010] Furthermore, the lifting device is a pneumatic cylinder or an electric cylinder.

[0011] Furthermore, the middle plate is a circular plate or a rectangular plate.

[0012] Furthermore, an AOI detection device is provided at the inlet end of the feed conveying device or on the feed conveying device.

[0013] The beneficial effects of the utility model are as follows: when the utility model is used, the AOI detection device detects the PCB board. When it is detected that the PCB board is unqualified, the unqualified PCB board is conveyed from the feeding conveying device to the lane changing and discharging device. After the in-place detection sensor on the lane changing and discharging device detects the PCB, the conveyor belt stops running, the lifting device drives the middle plate and the conveying frame to descend, and then the rotary drive motor drives the conveying frame to rotate. The feeding conveying device and the qualified product conveying device are provided with an avoidance space when the conveying frame rotates after descending, so the conveying frame will not collide with and interfere with the feeding conveying device and the qualified product conveying device when rotating, until the second sensor detects the induction trigger rod, the rotary drive motor stops, the conveying frame is docked with the unqualified product discharging device, the conveyor belt works, and the unqualified PCB board is conveyed to the unqualified product discharging device, until the discharging sensor detects that the unqualified PCB board leaves the conveyor belt, the conveying frame rotates and resets again, rises and resets, and the unqualified product discharging device is lower than the conveying frame, so the conveying frame and the unqualified product discharging device will not collide with and interfere with each other; the whole process is automatically carried out, the conveying is smooth, and the PCB board will not be scratched. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the main structure of the feeding conveying device, the lane changing and board discharging device and the qualified product conveying device;

[0017] Figure 3 It is a schematic diagram of the main structure of the lane-changing plate-exit device;

[0018] Figure 4 for Figure 3 Cross-sectional view along AA direction.

[0019] The reference numbers in the figure are: 1-feeding conveying device, 2-lane changing and discharging device, 3-qualified product conveying device, 4-unqualified product discharging device, 5-avoidance space, 11-feeding conveying rack, 12-feeding conveyor belt, 21-conveyor rack, 211-arrival detection sensor, 212-discharging sensor, 22-middle plate, 221-first sensor, 222-second sensor, 23-base frame, 24-conveyor belt, 25-rotating shaft, 251-sensing trigger rod, 26-rotating drive motor, 261-driven gear, 262-driving gear, 27-cylinder, 31-qualified product conveying rack, 32-qualified product conveyor belt, 41-unqualified product discharging rack, 42-unqualified product discharging conveyor belt. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Reference Figure 1-4 A PCB board changing lane discharging device comprises a feeding conveying device 1, a changing lane discharging device 2, a qualified product conveying device 3 and a unqualified product discharging device 4; the changing lane discharging device 2 comprises a conveying frame 21, an intermediate plate 22 and a bottom frame 23 from top to bottom; a group of spaced and symmetrical conveying belts 24 are arranged on the conveying frame 21, and the conveying belt 24 is connected to a driving device for driving the conveying belt to move circularly; a position detection sensor 211 for detecting the position of the PCB board is arranged on the conveying frame 21, and a discharging sensor 212 for detecting the departure of the PCB board is also arranged at the outlet end of the conveying frame 21, and a rotating shaft 25 is fixedly connected to the bottom of the conveying frame 21; the middle part of the rotating shaft 25 is rotatably connected to the intermediate plate 22, and a first sensor 221 and a second sensor 222 are fixed on the intermediate plate 22, and the first sensor The first sensor 221 and the second sensor 222 correspond to the directions of the qualified product conveying device and the unqualified product discharging device respectively. An induction trigger rod 251 for triggering the first sensor 221 and the second sensor 222 is fixed on the circumferential side of the rotating shaft 25. A driven gear 261 is fixed on the lower end of the rotating shaft 25. A rotating drive motor 26 is also fixed on the middle plate 22. A driving gear 262 is fixed on the rotating shaft of the rotating drive motor 26. The driving gear 261 and the driven gear 262 are meshed. A lifting device for driving the middle plate to rise and fall is provided at the bottom of the middle plate 22; the lifting device is installed on the base frame 23; the feed conveying device 1 and the qualified product conveying device 3 are provided with an avoidance space 5 when the conveying frame 21 rotates after descending, and the upper surface height of the unqualified product discharging device 4 is lower than the bottom surface height of the conveying frame 21 after descending.

[0022] As a further implementation scheme, the feed conveying device 1 includes a feed conveying frame 11, on which a group of spaced and symmetrical feed conveying belts 12 are provided, and the feed conveying belts 12 are transmission-connected to a first driving device for driving the feed conveying belts 12 to move in a circular motion; the qualified product conveying device 3 includes a qualified product conveying frame 31, on which a group of spaced and symmetrical qualified product conveying belts 32 are provided, and the qualified product conveying belts 32 are transmission-connected to a second driving device for driving the qualified product conveying belts 32 to move in a circular motion; the unqualified product discharging device 4 includes an unqualified product discharging frame 41, on which a group of spaced and symmetrical unqualified product discharging conveying belts 42 are provided, and the unqualified product discharging conveying belts 42 are transmission-connected to a third driving device for driving the unqualified product discharging conveying belts 42 to move in a circular motion; or the unqualified product discharging device 4 has an inclined discharging plate that is tilted downward.

[0023] As a further implementation scheme, the driving device includes an active roller, a driven roller and a driving motor, and the driving motor is transmission-connected to the active roller; the first driving device, the second driving device and the third driving device all have the same structure as the driving device.

[0024] As a further implementation scheme, the in-place detection sensor 211 includes a laser emitter and a laser receiver, and the laser emitter and the laser receiver are fixed on both sides of the conveyor belt respectively; the discharge sensor 212 includes a laser emitter I and a laser receiver I, and the laser emitter I and the laser receiver I are fixed on both sides of the conveyor belt respectively.

[0025] As a further embodiment, the first sensor 221 and the second sensor 222 are proximity sensors.

[0026] As a further embodiment, the lifting device is a pneumatic cylinder 27 or an electric cylinder.

[0027] As a further embodiment, the middle plate 22 is a circular plate or a rectangular plate.

[0028] As a further embodiment, an AOI detection device is provided at the inlet end of the feed conveying device 1 or on the feed conveying device 1 .

[0029] When the utility model is used, the AOI detection device detects the PCB board. When it is detected that the PCB board is unqualified, the unqualified PCB board is transported from the feed conveying device 1 to the lane changing and discharging device 2. After the in-place detection sensor 211 on the lane changing and discharging device 2 detects the PCB, the conveyor belt 24 stops running, the lifting device drives the middle plate 22 and the conveying frame 21 to descend, and then the rotary drive motor 26 drives the conveying frame 21 to rotate. The feed conveying device 1 and the qualified product conveying device 3 are provided with an avoidance space when the conveying frame 21 rotates after descending, so the conveying frame 21 will not collide with or interfere with the feed conveying device when rotating. 1 and the qualified product conveying device 3, until the second sensor detects 222 to the induction trigger rod 251, the rotation drive motor 26 stops, the conveying frame 21 is docked with the unqualified product discharging device 4, the conveyor belt 24 works, and the unqualified PCB board is conveyed to the unqualified product discharging device 4, until the discharging sensor 212 detects that the unqualified PCB board leaves the conveyor belt 24, the conveying frame 21 rotates and resets again, rises and resets, and the unqualified product discharging device is lower than the conveying frame 21, so the conveying frame 21 and the unqualified product discharging device 4 will not collide or interfere; the whole process is automatically carried out, the conveying is smooth, and the PCB board will not be scratched.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A PCB board changing lane and board output device, characterized in that: It includes a feeding conveying device, a lane changing and board discharging device, a qualified product conveying device and a unqualified product discharging device; The lane-changing plate-discharging device includes a conveying frame, an intermediate plate and a bottom frame from top to bottom; A set of spaced and symmetrical conveyor belts are arranged on the conveyor frame, and a driving device for driving the conveyor belts to move in a circular manner is connected to the conveyor belt transmission. A position detection sensor for detecting the position of the PCB board is arranged on the conveyor frame, and a discharge sensor for detecting the departure of the PCB board is also arranged at the outlet end of the conveyor frame, and a rotating shaft is fixedly connected to the bottom of the conveyor frame; The middle part of the rotating shaft is rotatably connected to the middle plate, and the first sensor and the second sensor are fixed to the middle plate, and the first sensor and the second sensor correspond to the directions of the qualified product conveying device and the unqualified product discharging device respectively. The induction triggering rod for triggering the first sensor and the second sensor is fixed on the circumferential side of the rotating shaft, and a driven gear is fixed on the lower end of the rotating shaft. A rotating drive motor is also fixed to the middle plate, and a driving gear is fixed on the rotating shaft of the rotating drive motor. The driving gear and the driven gear are meshed, and a lifting device for driving the middle plate to rise and fall is arranged at the bottom of the middle plate; The lifting device is installed on the base frame; The feed conveying device and the qualified product conveying device are provided with avoidance space when the conveying frame rotates after descending, and the upper surface height of the unqualified product discharging device is lower than the bottom surface height of the conveying frame after descending.

2. The PCB board changing lane and board output device according to claim 1, characterized in that: The feed conveyor device comprises a feed conveyor frame, on which a group of spaced and symmetrical feed conveyor belts are arranged, and the feed conveyor belts are transmission-connected to a first driving device for driving the feed conveyor belts to circulate; The qualified product conveying device comprises a qualified product conveying frame, on which a group of spaced and symmetrical qualified product conveying belts are arranged, and the qualified product conveying belts are transmission-connected to a second driving device for driving the qualified product conveying belts to circulate; The defective product discharging device includes a defective product discharging rack, on which a group of spaced and symmetrical defective product discharging conveyor belts are arranged, and the defective product discharging conveyor belts are transmission-connected to a third driving device for driving the defective product discharging conveyor belts to move in a circular motion; or a downwardly inclined discharging plate of the defective product discharging device.

3. The PCB board changing lane and board output device as claimed in claim 2, characterized in that: The driving device comprises an active roller, a driven roller and a driving motor, and the driving motor is drivingly connected to the active roller; the first driving device, the second driving device and the third driving device all have the same structure as the driving device.

4. The PCB board changing lane and board output device according to claim 1, characterized in that: The in-place detection sensor includes a laser emitter and a laser receiver, which are fixed on both sides of the conveyor belt respectively; the discharging sensor includes a laser emitter I and a laser receiver I, which are fixed on both sides of the conveyor belt respectively.

5. The PCB board changing lane and board output device according to claim 1, characterized in that: The first sensor and the second sensor are proximity sensors.

6. The PCB board changing lane and board output device according to claim 1, characterized in that: The lifting device is a pneumatic cylinder or an electric cylinder.

7. The PCB board changing lane and board output device according to claim 1, characterized in that: The middle plate is a circular plate or a rectangular plate.

8. The PCB board changing lane and outputting device according to any one of claims 1 to 7, characterized in that: An AOI detection device is arranged at the inlet end of the feed conveying device or on the feed conveying device.

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