Sorting and conveying mechanism for circuit boards

Abstract

The utility model discloses a circuit board sorting and conveying mechanism which comprises a first conveying belt and a second conveying belt arranged on one side of the first conveying belt in parallel, a detection unit is arranged above a feeding section of the first conveying belt, and an air cylinder is installed on one side, opposite to a transition plate, of the first conveying belt. A strip-shaped baffle opposite to the push block is arranged on the side, back to the transition plate, of the second conveying belt, and a first guide plate and a second guide plate are arranged on the side, back to the first conveying belt, of the strip-shaped baffle and located above the second conveying belt. And a guide part inclined towards the edge of the second conveying belt opposite to the first guide plate is formed at the other end of the second guide plate. According to the utility model, through the cooperation between the detection unit and the air cylinder, the products can be efficiently sorted according to the detection result so as to quickly screen out the defective products, and the stable connection and high-precision conveying of the good products can be realized, so that the subsequent processing operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, and in particular to a sorting and conveying mechanism for circuit boards. Background Technology

[0002] During the manufacturing process of surface mount circuit boards (SMT), to ensure the quality and performance of electronic products, finished products need to be inspected for external defects such as missing parts, short circuits, misalignment, and foreign objects, as well as internal defects such as open or short circuits in internal circuitry. Currently, PCB inspection on existing production lines mainly involves manual inspection of PCBs by holding them under a light source and visually checking for defects. This method is inefficient and prone to errors. Utility Model Content

[0003] The purpose of this utility model is to provide a sorting and conveying mechanism for circuit boards. This sorting and conveying mechanism can efficiently sort products to quickly screen out defective products, and can also achieve stable connection and high-precision transportation of good products, which facilitates subsequent processing operations.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a sorting and conveying mechanism for circuit boards, comprising: a first conveyor belt and a second conveyor belt arranged parallel to one side of the first conveyor belt; a detection unit is provided above the feeding section of the first conveyor belt; the unloading section of the first conveyor belt and the feeding section of the second conveyor belt overlap and are connected by a transition plate; a cylinder is installed on the side of the first conveyor belt opposite to the transition plate; a push block is installed on the piston rod of the cylinder, which is arranged perpendicular to the conveying direction of the first conveyor belt, so that the push block is slidably arranged above the first conveyor belt and the second conveyor belt; a strip baffle is provided on the side of the second conveyor belt opposite to the transition plate, which is opposite to the push block; an elastic pad extending to the top of the second conveyor belt is attached to the surface of the strip baffle facing the push block.

[0005] The strip baffle is located on one side opposite to the first conveyor belt and above the second conveyor belt. A first guide plate and a second guide plate are respectively provided. One end of the first guide plate is connected to the strip baffle. One end of the second guide plate, which is spaced apart from the first guide plate, is flush with the other end of the first guide plate away from the strip baffle. The other end of the second guide plate forms a guide portion that is inclined towards the edge of the second conveyor belt opposite to the first guide plate. The upper surfaces of the first guide plate and the second guide plate, which are set close to the second conveyor belt, are connected to the upper surface of the strip baffle through a top plate.

[0006] The following are further improvements to the above technical solution:

[0007] 1. In the above scheme, the detection unit is an X-ray detection unit.

[0008] 2. In the above scheme, the push block is an L-shaped push block, and a push groove is formed between its vertical part and horizontal part, which can be embedded at the edge of the PCB circuit board.

[0009] 3. In the above scheme, the surface of the first guide plate facing the second guide plate is flush with the surface of the elastic pad opposite to the strip baffle.

[0010] 4. In the above scheme, one end of the second guide plate with the guide portion is flush with the end of the push block opposite to the detection unit.

[0011] 5. In the above scheme, the detection unit is installed on a bracket spanning above the first conveyor belt, and the bracket is installed on a fixed seat of the first conveyor belt.

[0012] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0013] The present invention relates to a sorting and conveying mechanism for circuit boards. A detection unit is installed above the loading section of a first conveyor belt. The unloading section of the first conveyor belt overlaps with the loading section of a second conveyor belt and is connected by a transition plate. A cylinder is installed on the side of the first conveyor belt opposite to the transition plate. A push block is mounted on the piston rod of the cylinder, which is perpendicular to the conveying direction of the first conveyor belt. This push block is slidably positioned above the first and second conveyor belts. A strip-shaped baffle is installed on the side of the second conveyor belt opposite to the transition plate, opposite to the push block. An elastic pad extending above the second conveyor belt is attached to the surface of the strip-shaped baffle facing the push block. The strip-shaped baffle is located on the side opposite to the first conveyor belt and on the side of the second conveyor belt... A first guide plate and a second guide plate are respectively provided above. One end of the first guide plate is connected to the strip baffle. One end of the second guide plate, which is spaced apart from the first guide plate, is flush with the other end of the first guide plate away from the strip baffle. The other end of the second guide plate forms a guide portion that is inclined at the edge of the second conveyor belt opposite to the first guide plate. The upper surfaces of the first guide plate and the second guide plate, which are set close to the second conveyor belt, are connected to the upper surface of the strip baffle by a top plate. It can efficiently sort products and quickly screen out defective products based on the detection results through the cooperation between the detection unit and the cylinder. It can also achieve stable connection and high-precision transportation of good products, which is convenient for subsequent processing operations. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of the sorting and conveying mechanism for the circuit board of this utility model;

[0015] Appendix Figure 2 This is a partial structural schematic diagram of the sorting and conveying mechanism for the circuit board of this utility model;

[0016] Appendix Figure 3 for Figure 2 A schematic diagram of the decomposition of a local structure.

[0017] In the above attached figures: 1. First conveyor belt; 2. Second conveyor belt; 3. Detection unit; 31. Support; 4. Transition plate; 5. Cylinder; 51. Support plate; 6. Push block; 7. Strip baffle; 71. Elastic pad; 81. First guide plate; 82. Second guide plate; 83. Guide part; 9. Top plate. Detailed Implementation

[0018] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0019] Example 1: A sorting and conveying mechanism for circuit boards includes: a first conveyor belt 1 and a second conveyor belt 2 arranged parallel to one side of the first conveyor belt 1. A detection unit 3 is arranged above the feeding section of the first conveyor belt 1. The unloading section of the first conveyor belt 1 and the feeding section of the second conveyor belt 2 are overlapped and connected by a transition plate 4. A cylinder 5 is installed on the side of the first conveyor belt 1 opposite to the transition plate 4. A push block 6 is installed on the piston rod of the cylinder 5, which is arranged perpendicular to the feeding direction of the first conveyor belt 1, so that the push block 6 is slidably arranged above the first conveyor belt 1 and the second conveyor belt 2. A strip baffle 7 is arranged opposite to the push block 6 on the side of the second conveyor belt 2 opposite to the transition plate 4. An elastic pad 71 extending to the top of the second conveyor belt 2 is attached to the surface of the strip baffle 7 facing the push block 6.

[0020] In use, the product is first transported through the inspection unit by the first conveyor belt. When the product moves under the inspection unit, defects such as scratches and oxidation can be detected. For defective products, the cylinder drives the pusher to push the defective product onto the second conveyor belt. The second conveyor belt transports the defective product to the NG box at the rear of the second conveyor belt. For good products that pass the inspection, the first conveyor belt continues to transport them to the next processing section.

[0021] The strip baffle 7 is located on one side opposite to the first conveyor belt 1 and above the second conveyor belt 2. A first guide plate 81 and a second guide plate 82 are respectively provided. One end of the first guide plate 81 is connected to the strip baffle 7. One end of the second guide plate 82, which is spaced apart from the first guide plate 81, is flush with the other end of the first guide plate 81 away from the strip baffle 7. The other end of the second guide plate 82 forms a guide portion 83 that is inclined towards the edge of the second conveyor belt 2 opposite to the first guide plate 81. The upper surfaces of the first guide plate 81 and the second guide plate 82, whose lower surfaces are close to the second conveyor belt 2, are connected to the upper surface of the strip baffle 7 through a top plate 9.

[0022] When defective products reach the second conveyor belt, they are prevented from leaving the belt by the baffles and the impact is reduced by the elastic pads to avoid damage. Then, guided by the first guide plate, the second guide plate and the guide section, the defective products move towards the NG box at the rear end of the second conveyor belt with good positioning accuracy.

[0023] The push block 6 is an L-shaped push block, with a push groove 61 formed between its vertical and horizontal parts, which can be embedded at the edge of the PCB circuit board; the length of the push block 6 is greater than the length of the PCB circuit board.

[0024] The surface of the first guide plate 81 facing the second guide plate 82 is flush with the surface of the elastic pad 71 opposite to the strip baffle 7; the end of the second guide plate 82 with the guide portion 83 is flush with the end of the push block 6 opposite to the detection unit 3.

[0025] Example 2: A sorting and conveying mechanism for circuit boards includes: a first conveyor belt 1 and a second conveyor belt 2 arranged parallel to one side of the first conveyor belt 1. A detection unit 3 is arranged above the feeding section of the first conveyor belt 1. The unloading section of the first conveyor belt 1 and the feeding section of the second conveyor belt 2 are overlapped and connected by a transition plate 4. A cylinder 5 is installed on the side of the first conveyor belt 1 opposite to the transition plate 4. A push block 6 is installed on the piston rod of the cylinder 5, which is arranged perpendicular to the feeding direction of the first conveyor belt 1, so that the push block 6 is slidably arranged above the first conveyor belt 1 and the second conveyor belt 2. A strip baffle 7 is arranged opposite to the push block 6 on the side of the second conveyor belt 2 opposite to the transition plate 4. An elastic pad 71 extending to the top of the second conveyor belt 2 is attached to the surface of the strip baffle 7 facing the push block 6.

[0026] When the product moves to the front of the push block, according to the detection results of the detection unit, the qualified products continue to move along the first conveyor belt until the next processing position, while the unqualified products are pushed to the second conveyor belt by the extension of the push block controlled by the cylinder, and the unqualified products are screened out.

[0027] The strip baffle 7 is located opposite to the first conveyor belt 1 and above the second conveyor belt 2. A first guide plate 81 and a second guide plate 82 are respectively provided. One end of the first guide plate 81 is connected to the strip baffle 7. One end of the second guide plate 82, which is spaced apart from the first guide plate 81, is flush with the other end of the first guide plate 81 away from the strip baffle 7. The other end of the second guide plate 82 forms a guide portion 83 that is inclined towards the edge of the second conveyor belt 2 opposite to the first guide plate 81. The upper surfaces of the first guide plate 81 and the second guide plate 82, whose lower surfaces are close to the second conveyor belt 2, are connected to the upper surface of the strip baffle 7 through a top plate 9.

[0028] The aforementioned detection unit 3 is an X-ray detection unit; the aforementioned detection unit 3 is installed on a bracket 31 that spans above the first conveyor belt 1, and the bracket 31 is installed on a fixed seat of the first conveyor belt 1; the aforementioned cylinder 5 is installed on a support seat on the side of the first conveyor belt 1 via a support plate 51.

[0029] The first conveyor belt, the second conveyor belt, and the detection unit mentioned above were all purchased externally and fall within the scope of existing technology, so they will not be described in detail here.

[0030] When using the sorting and conveying mechanism of the circuit board mentioned above, it can efficiently sort products according to the detection results through the cooperation between the detection unit and the cylinder, thereby quickly screening out defective products, and can also achieve stable connection and high-precision transportation of good products, which facilitates subsequent processing operations.

[0031] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A circuit board sorting and conveying mechanism, comprising: The first conveyor belt (1) and the second conveyor belt (2) are arranged parallel to one side of the first conveyor belt (1), characterized in that: a detection unit (3) is provided above the feeding section of the first conveyor belt (1), the unloading section of the first conveyor belt (1) and the feeding section of the second conveyor belt (2) are overlapped and connected by a transition plate (4), a cylinder (5) is installed on the side of the first conveyor belt (1) opposite to the transition plate (4), a push block (6) is installed on the piston rod of the cylinder (5) arranged perpendicular to the feeding direction of the first conveyor belt (1), so that the push block (6) is slidably arranged above the first conveyor belt (1) and the second conveyor belt (2), a strip baffle (7) is provided on the side of the second conveyor belt (2) opposite to the transition plate (4), and an elastic pad (71) extending to the top of the second conveyor belt (2) is attached to the surface of the strip baffle (7) facing the push block (6). The strip baffle (7) is opposite to the first conveyor belt (1) and above the second conveyor belt (2) respectively provided with a first guide plate (81) and a second guide plate (82). One end of the first guide plate (81) is connected to the strip baffle (7). One end of the second guide plate (82) which is spaced apart from the first guide plate (81) is flush with the other end of the first guide plate (81) away from the strip baffle (7). The other end of the second guide plate (82) forms a guide part (83) that is inclined to the edge of the second conveyor belt (2) opposite to the first guide plate (81). The upper surfaces of the first guide plate (81) and the second guide plate (82) which are arranged close to the second conveyor belt (2) are connected to the upper surface of the strip baffle (7) through a top plate (9).

2. The circuit board sorting and conveying mechanism according to claim 1, characterized in that: The detection unit (3) is an X-ray detection unit.

3. The circuit board sorting and conveying mechanism according to claim 1, characterized in that: The pusher (6) is an L-shaped pusher, and a push groove (61) is formed between its vertical part and horizontal part, which can be embedded at the edge of the PCB circuit board.

4. The circuit board sorting and conveying mechanism according to claim 1, characterized in that: The surface of the first guide plate (81) facing the second guide plate (82) is flush with the surface of the elastic pad (71) opposite to the strip baffle (7).

5. The circuit board sorting and conveying mechanism according to claim 1, characterized in that: The second guide plate (82) has a guide part (83) at one end that is flush with the push block (6) opposite to the detection unit (3).

6. The circuit board sorting and conveying mechanism according to claim 1, characterized in that: The detection unit (3) is mounted on a bracket (31) that spans above the first conveyor belt (1), and the bracket (31) is mounted on a fixed seat of the first conveyor belt (1).

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