CN104874548A - Feeder for automatic sorter of PCB - Google Patents

Abstract

The invention discloses a feeder for an automatic sorter of a PCB. The feeder comprises a conveying belt (1), a walking track (2) and a manipulator (3), wherein the walking track (2) is fixedly installed above the conveying belt (1) via a track fixing frame (4); the top of the walking track (2) is provided with a screw rod (5) and a driving motor (6); the walking track (2) is sleeved with a slide block (7); the slide block (7) is connected with the top of the manipulator (3) via a connecting rod (8); one end of the screw rod (5) is fixedly connected with an output shaft of the driving motor (6); the slide block (7) is provided with a screw hole (9) which is connected with the screw rod (5) in a threaded mode. The feeder has the functions of conveying and automatic feeding, and is relatively high in working efficiency.

Description

Feeding device for PCB board automatic sorting machine

technical field

The invention relates to a feeding device, in particular to a feeding device for a PCB automatic sorter, belonging to the field of mechanical equipment.

Background technique

The traditional detection of PCB boards is generally manual detection or machine detection. Manual detection is based on human visual inspection, detection and classification. The theoretical basis of machine detection is image processing. It is necessary to take pictures of both sides of the PCB board, so the traditional conveyor belt cannot be transported with one conveyor belt. For image acquisition, two conveyor belts will be used so that the lower surface of the PCB board can be photographed by the camera except for the edge that does not involve detection. In order to stabilize the captured image in the industry, one motor will be used to drive two conveyor belts, such as The gear synchronous belt has very good synchronization, but it can only detect the PCB board of the same size. If the board size is small, it cannot be detected, and if the board is large, it cannot be detected; at this time, two motors are used to drive two Conveyor belt, an adjustment device will be installed in the middle so that it can adjust the distance between the two belts to adapt to various sizes of boards, but the synchronization of the two motors will have errors, such as one of the motors when the motor is started. The delay will lead to different conveying speeds of the two belts, resulting in unstable captured images, making it impossible to analyze the images; the best way is to use one control device to drive the two conveyor belts.

There are two traditional ways to separate a pile of boards, one is manual separation, and the other is to use a vacuum suction cup to separate by sucking the PCB board stack. Wait for contact, start the vacuum equipment to suck, so that negative air pressure is generated in the suction cup, so that the object to be lifted can be sucked firmly, and the object to be lifted can be started to be transported. Vacuum suction cups cannot pick up PCB boards with holes. You can start moving the object to be lifted. Vacuum suction cups cannot pick up PCB boards with holes.

In order to overcome the deficiencies in the above-mentioned technologies, the applicant in this case developed a new type of fully automatic PCB board automatic sorting machine, which can be applied to PCB boards of various specifications, and has a high degree of automation, high recognition efficiency and sorting The advantage of fast picking speed. The structure of the feeding device in the prior art is relatively simple and cannot realize the functions of feeding and automatic feeding, so the applicant of this case developed a new type of feeding device.

Contents of the invention

The object of the present invention is to provide a feeding device for an automatic sorting machine for PCB boards, which has the functions of conveying and automatic feeding, and has high working efficiency.

The technical scheme of the present invention: a feeding device for automatic PCB board sorting machine, including a conveyor belt, and also includes a walking track and a manipulator, the walking track is fixedly installed above the conveyor belt through a track fixing frame, and a wire The rod and the driving motor are connected with a slider on the walking track. The slider is connected to the top of the manipulator through the connecting rod. One end of the screw is fixedly connected to the output shaft of the driving motor. The bars are connected by threads. Through the mutual cooperation of the manipulator and the conveyor belt, both the function of transmission and the function of automatic feeding can be realized, without manual operation, and the work efficiency is very high.

In the aforementioned feeding device for automatic PCB board sorting machines, the manipulator includes a top plate, a splint and an electric push-pull rod, the top of the top plate is connected to the connecting rod, and the bottom of the top plate is provided with a manipulator walking track. The top is installed on the manipulator walking track and is slidingly connected with it, and the bottom of the top plate is provided with 2 electric push-pull rods, and each of the 2 electric push-pull rods is connected with a splint. The movement of the two splints is controlled by two electric push-pull rods, which simplifies the structure of the manipulator and reduces the manufacturing cost.

In the above-mentioned feeding device for automatic PCB board sorting machines, a push-pull cylinder is provided on both sides of the conveyor belt, and the two push-pull cylinders are symmetrically arranged; each push-pull cylinder is equipped with a limit Baffle, two limit baffles are set symmetrically. Setting the limit baffle can arrange the PCB board neatly while transferring the PCB board, which is convenient for the following manipulator to grab.

In the aforementioned feeding device for automatic sorting machines for PCB boards, the limit baffle consists of a horizontal baffle, a longitudinal baffle and a guide plate, the long side of the longitudinal baffle is parallel to the moving direction of the conveyor belt, and the horizontal baffle passes through The guide plate is connected with the longitudinal baffle, and the transverse baffle and the longitudinal baffle are vertically arranged. The limit baffle with this structure can automatically align the messy PCB boards left and right during the movement.

In the foregoing feeding device for an automatic PCB board sorting machine, the cross-sectional shape of the splint is "L". Designing the shape of the splint as an L shape can play a role of lateral limit when blanking.

Compared with the prior art, the present invention achieves the purpose of conveying and automatic feeding through the perfect combination of the conveyor belt and the manipulator. The whole process does not require manual operation, and has the advantages of high degree of automation and high work efficiency. The self-designed manipulator can not only be used to transfer PCB boards, but also play the role of limit positioning, providing assistance for subsequent processes. By setting the limit baffle, the function of automatically stacking the PCB boards in order can be realized, instead of manual operation.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is the structural representation of manipulator;

Fig. 3 is a top view of the push-pull cylinder and the limit baffle.

The marks in the attached drawings are: 1-conveyor belt, 2-walking track, 3-manipulator, 4-track fixing frame, 5-lead screw, 6-drive motor, 7-slider, 8-connecting rod, 9-screw hole , 10-top plate, 11-splint, 12-electric push-pull rod, 13-manipulator walking track, 14-push-pull cylinder, 15-limit baffle, 16-transverse baffle, 17-longitudinal baffle, 18-guide plate.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiment of the present invention: a kind of feeding device that is used for PCB board automatic sorting machine, as shown in Figure 1, comprises conveyer belt 1, also comprises walking track 2 and manipulator 3, and walking track 2 is fixedly installed on by track fixing frame 4 Above the conveyor belt 1, a lead screw 5 and a drive motor 6 are provided on the top of the walking track 2, and a slider 7 is sleeved on the walking track 2, and the slider 7 is connected to the top of the manipulator 3 through a connecting rod 8, and one end of the lead screw 5 It is fixedly connected with the output shaft of the driving motor 6, and the slide block 7 is provided with a screw hole 9, and the screw hole 9 is connected with the lead screw 5 through threads. Both sides of the conveyor belt 1 are provided with a push-pull cylinder 14, and the two push-pull cylinders 14 are symmetrically arranged; each push-pull cylinder 14 is equipped with a limit baffle 15, and two limit baffles 15 are symmetrically arranged .

As shown in Figure 2, described manipulator 3 comprises top plate 10, splint 11 and electric push-pull rod 12, and the top of top plate 10 is connected with connecting rod 8, and the bottom of top plate 10 is provided with manipulator walking track 13, and the tops of two splints 11 are Installed on the manipulator walking track 13 and slidingly connected with it, the bottom of the top plate 10 is provided with 2 electric push-pull rods 12, and each of the 2 electric push-pull rods 12 is connected to a splint 11. The section shape of the splint 11 is "L".

As shown in Figure 3, the limit baffle 15 is composed of a transverse baffle 16, a longitudinal baffle 17 and a guide plate 18, the long side of the longitudinal baffle 17 is parallel to the moving direction of the conveyor belt, and the transverse baffle 16 is connected to the longitudinal baffle 18 by the guide plate 18. The baffles 17 are connected, and the transverse baffles 16 and the longitudinal baffles 17 are arranged perpendicular to each other.

Working principle of the present invention: first adjust the distance between two limit baffles 15 according to the specifications of the PCB board, the specific adjustment method is to adjust the push-pull cylinders 14 on both sides of the conveyor belt 1, after adjusting the spacing, place the whole stack of PCB boards Put it on the end of the conveyor belt 1, and send it between the two limit baffles 15 through the PCB board as the conveyor belt 1 runs, before the PCB board enters between the two longitudinal baffles 17, the uneven PCB boards will Automatic alignment under the action of the guide plate 18, the angle between the guide plate 18 and the longitudinal baffle 17 is usually 130-160 degrees, then the PCB board is sent to the other end by the conveyor belt 1, and is located above the conveyor belt 1 after reaching the other end The manipulator 3 starts to work. The manipulator 3 first increases the distance between the two splints 11 along the manipulator walking track 13 under the action of the electric push-pull rod 12. When the PCB board is transported between the two splints 11, the electric push-pull Under the action of the pull rod 12, the two splints 11 are shrunk, so that the splint 11 clamps the PCB board firmly, and then the motor 6 is driven to work, driving the screw 5 to rotate, and the slider 7 slides along the running track 2 when the screw 5 rotates. After the manipulator 3 arrives directly above the next processing equipment, the driving motor 6 is stopped.

Claims (5)

1. the pay-off for pcb board automatic letter sorting machine, comprise conveyer belt (1), it is characterized in that: also comprise walking track (2) and manipulator (3), walking track (2) is fixedly mounted on the top of conveyer belt (1) by track fixed frame (4), the top of walking track (2) is provided with leading screw (5) and drive motors (6), walking track (2) is socketed with slide block (7), slide block (7) is connected by the top of connecting rod (8) with manipulator (3), one end of leading screw (5) is fixedly connected with the output shaft of drive motors (6), slide block (7) is provided with screw (9), screw (9) and leading screw (5) are threaded connection.

2. the pay-off for pcb board automatic letter sorting machine according to claim 1, it is characterized in that: described manipulator (3) comprises top board (10), clamping plate (11) and electric push rod (12), the top of top board (10) is connected with connecting rod (8), the bottom of top board (10) is provided with manipulator walking track (13), the top of 2 clamping plate (11) is installed in manipulator walking track (13) and goes up and be slidably connected with it, the bottom of top board (10) is provided with 2 electric push rods (12), 2 electric push rods (12) respectively connect a clamping plate (11).

3. the pay-off for pcb board automatic letter sorting machine according to claim 2, it is characterized in that: the both sides of conveyer belt (1) are equipped with a push-and-pull cylinder (14), described 2 push-and-pull cylinders (14) are symmetrically set; Each push-and-pull cylinder (14) is all provided with 1 piece of postive stop baffle (15), 2 pieces of postive stop baffles (15) are symmetrical arranged.

4. the pay-off for pcb board automatic letter sorting machine according to claim 3, it is characterized in that: postive stop baffle (15) is by transverse baffle (16), longitudinal baffle (17) and guide plate (18), the long limit of longitudinal baffle (17) is parallel with the direction of motion of conveyer belt, transverse baffle (16) is connected with longitudinal baffle (17) by guide plate (18), and transverse baffle (16) and longitudinal baffle (17) are arranged vertically mutually.

5. the pay-off for pcb board automatic letter sorting machine according to claim 4, is characterized in that: the section configuration of described clamping plate (11) is " L " shape.