Circuit board code spraying device for circuit board production

Abstract

The invention discloses a circuit board code spraying device for circuit board production, which comprises a control unit, a feeding conveying unit, a first discharging conveying unit, a second discharging conveying unit, a turntable, a turntable driving unit and a first code spraying unit, and is characterized in that four material moving conveying units are mounted at the turntable, and the turntable is provided with a feeding position, a code spraying position, a detection position and a discharging position; the feeding conveying unit faces the feeding position, the first discharging conveying unit faces the detection position, the second discharging conveying unit faces the discharging position, and the first code spraying unit can conduct code spraying on the circuit board at the code spraying position. According to the circuit board code spraying device, automatic code spraying can be achieved, double-face code spraying is achieved, the production efficiency is greatly improved, manual intervention is reduced, and the production cost is reduced. And after code spraying is finished, detection can be realized, so that the accuracy, integrity and definition of code spraying information are ensured, and the product quality requirement is met. And automatic classification of qualified products and unqualified products can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board coding devices, and more specifically, to a circuit board coding device used for circuit board production. Background Art

[0002] Circuit board coding devices are widely used in the manufacturing process of electronic products such as smartphones, tablet computers, and laptops. Some existing circuit board coding devices require manual coding, and manual coding requires manual operation one by one, which greatly limits production efficiency. Especially in large-scale production environments, the speed of manual coding is far behind the pace of automated production lines. Due to the uncontrollability of human factors, manual operation is prone to problems such as offset of coding position or unclear coding. These errors not only affect the aesthetics of the product, but may also lead to material waste and rework. Long-term use of manual coding methods requires additional labor costs. Although some coding devices can realize automatic coding, they can only code one side of the circuit board. When the circuit board needs to be coded on both sides, if only one side can be coded, then secondary processing is required, which not only increases production costs, but also reduces production efficiency. In addition, there is a lack of detection steps after coding, and defective products may not be discovered in time. Summary of the invention

[0003] The present invention aims to overcome the defects of the prior art and provides a circuit board coding device for circuit board production.

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a circuit board coding device for circuit board production, comprising a control unit, a loading and conveying unit, a first unloading and conveying unit, a second unloading and conveying unit, a turntable, a turntable drive unit for driving the turntable to rotate, and a first coding unit, wherein four material shifting and conveying units distributed in a ring shape and at equal intervals are installed at the turntable, and the turntable has a loading position, a coding position, a detection position and a unloading position, the loading and conveying unit faces the loading position, the first unloading and conveying unit faces the detection position, and the second unloading and conveying unit faces the unloading position, and the first coding unit can code the circuit board at the coding position.

[0005] Furthermore, the loading conveying unit, the first unloading conveying unit, and the second unloading conveying unit are all conveyor belt conveying units, and have side baffles on both sides.

[0006] Furthermore, the material transfer and conveying units are all conveyor belt type conveying units, both sides of which have side baffles, and a fixed baffle is connected between the two side baffles.

[0007] Therefore, during transportation, the end of the circuit board can abut against the fixed baffle, thereby achieving positioning of the circuit board.

[0008] Furthermore, it also includes a second coding unit and a first detection unit; an inverted U-shaped frame is connected between the two side baffles of the first unloading and conveying unit, a lifting baffle is provided under the inverted U-shaped frame, and an electric telescopic rod is connected between the lifting baffle and the inverted U-shaped frame; the first detection unit includes an L-shaped frame and a first image acquisition unit installed on the L-shaped frame; the second coding unit includes a base plate, a first slide rail located at the base plate, a U-shaped mounting frame installed on the first slide rail, a first locking bolt for locking the mounting frame and the base plate, a second slide rail located at the mounting frame, a movable seat installed on the second slide rail, a second image acquisition unit installed at the movable seat, a second coding unit body installed at the movable seat, an electric push rod installed on the mounting frame and used to drive the movable seat to translate, a third slide rail located at the movable seat, a sliding sleeve installed on the third slide rail, a second locking bolt for locking the position of the sliding sleeve and the third slide rail, a vertical plate fixedly connected to the sliding sleeve, and a pressure sensor installed at the vertical plate.

[0009] Therefore, the working positions of the second image acquisition unit and the second coding unit body can be adjusted through the mounting bracket.

[0010] Furthermore, the first coding unit is used to code the circuit board from top to bottom.

[0011] Furthermore, the second coding unit is used to code the circuit board from bottom to top.

[0012] Furthermore, one end of the electric push rod is connected to one end of the mounting frame, and the other end is connected to the movable seat; the electric telescopic rods are provided with two.

[0013] Furthermore, the first inkjet unit includes a vertical frame, a first cross bar connected to the vertical frame, a first slider installed on the first cross bar, a third locking bolt for locking the first cross bar and the first slider, a second cross bar connected to the first slider, a second slider installed on the second cross bar, a fourth locking bolt for locking the second slider and the second cross bar, and a first inkjet unit body installed at the second slider.

[0014] Thereby, the position of the first inkjet unit body can be adjusted.

[0015] Furthermore, it also includes a frame, and the control unit, the loading conveying unit, the first unloading conveying unit, the second unloading conveying unit, the turntable drive unit, the L-shaped frame, the base plate and the vertical frame are all installed on the frame.

[0016] The present application also discloses a coding method based on the above-mentioned circuit board coding device, comprising the following steps:

[0017] 1) The loading conveying unit conveys the circuit board to the material transfer conveying unit at the loading position;

[0018] 2) The turntable moves the circuit board to the coding position, and the first coding unit body codes the upper surface of the circuit board;

[0019] 3) The turntable moves the circuit board to the detection position, and the material transfer and conveying unit and the first material unloading and conveying unit cooperate to convey the circuit board, so that the end of the circuit board abuts the lifting baffle; the first image acquisition unit is used to capture an image to determine whether the inkjet coding on the upper surface of the circuit board is qualified; the second inkjet coding unit body is used to inkjet the lower surface of the circuit board, and the electric push rod moves the second image acquisition unit to below the inkjet coding on the lower surface of the circuit board. When the measured value of the pressure sensor is less than or equal to the set threshold, the inkjet coding on the lower surface of the circuit board is captured to determine whether the inkjet coding is qualified;

[0020] 4) When the first image acquisition unit determines that the circuit board is qualified, the measured value of the pressure sensor is less than or equal to the set threshold, and the second image acquisition unit determines that the circuit board is qualified, the lifting baffle is lifted by the electric telescopic rod, and the circuit board is unloaded by the first unloading conveying unit;

[0021] 5) When the first image acquisition unit judges that it is unqualified, or the measured value of the pressure sensor is greater than the set threshold, or the second image acquisition unit judges that it is unqualified, the circuit board is transported back to the material transfer unit at the detection position, the turntable is used to move the circuit board to the unloading position, and the second unloading conveying unit is used to unload the circuit board.

[0022] Beneficial effects:

[0023] 1. The circuit board coding device of the present application can realize automatic coding and double-sided coding, which greatly improves production efficiency, reduces manual intervention, and reduces production costs.

[0024] 2. The circuit board coding device of the present application can realize detection after coding is completed to ensure the accuracy, completeness and clarity of the coding information to meet product quality requirements.

[0025] 3. The circuit board coding device of the present application can realize the automatic classification of qualified products and unqualified products, which not only improves the production efficiency, but also ensures the stability and consistency of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of using the first image acquisition unit to acquire an image of the inkjet coding on the upper surface of a circuit board;

[0027] Figure 2 This is an enlarged view of area A;

[0028] Figure 3 This is a schematic diagram of the second coding unit body coding the lower surface of the circuit board;

[0029] Figure 4 This is an enlarged view of area B;

[0030] Figure 5 A schematic diagram of using the second image acquisition unit to acquire an image of the inkjet coding on the lower surface of a circuit board;

[0031] Figure 6 This is an enlarged view of area C;

[0032] Figure 7 A schematic diagram of unloading qualified circuit boards using the first unloading and conveying unit;

[0033] Figure 8 This is an enlarged view of area D.

[0034] Description of reference numerals: feeding conveying unit 1; first unloading conveying unit 2; second unloading conveying unit 3; turntable 4; turntable driving unit 5; vertical frame 6.1; first cross bar 6.2; first slide block 6.3; third locking bolt 6.4; second cross bar 6.5; second slide block 6.6; fourth locking bolt 6.7; first inkjet unit body 6.8; material transfer conveying unit 7; fixed baffle 7.1; inverted U-shaped frame 8; electric telescopic rod 8.1; lifting baffle 8 .2; L-shaped frame 9.1; first image acquisition unit 9.2; base plate 10.1; first slide rail 10.2; mounting frame 10.3; first locking bolt 10.4; second slide rail 10.5; movable seat 10.6; second image acquisition unit 10.7; second inkjet unit body 10.8; electric push rod 10.9; sliding sleeve 10.10; second locking bolt 10.11; vertical plate 10.12; pressure sensor 10.13; circuit board 11. DETAILED DESCRIPTION

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] The present invention provides a circuit board coding device for circuit board production as shown in the figure, including a control unit, a loading and conveying unit 1, a first unloading and conveying unit 2, a second unloading and conveying unit 3, a turntable 4, a turntable driving unit 5 for driving the turntable 4 to rotate, and a first coding unit. The turntable 4 is equipped with four circular and equally spaced material transfer and conveying units 7. The turntable 4 has a loading position, a coding position, a detection position, and a unloading position. The loading and conveying unit 1 faces the loading position, the first unloading and conveying unit 2 faces the detection position, and the second unloading and conveying unit 3 faces the unloading position. The first coding unit can code the circuit board at the coding position. The loading and conveying unit 1, the first unloading and conveying unit 2, and the second unloading and conveying unit 3 are all conveyor belt conveying units, and both sides have side baffles; the material transfer and conveying units 7 are all conveyor belt conveying units, both sides have side baffles, and a fixed baffle 7.1 is connected between the two side baffles.

[0037] The circuit board coding device also includes a second coding unit and a first detection unit; an inverted U-shaped frame 8 is connected between the two side baffles of the first unloading and conveying unit 2, and a lifting baffle 8.2 is provided below the inverted U-shaped frame 8, and an electric telescopic rod 8.1 is connected between the lifting baffle 8.2 and the inverted U-shaped frame 8; the first detection unit includes an L-shaped frame 9.1 and a first image acquisition unit 9.2 installed on the L-shaped frame 9.1; the second coding unit includes a base plate 10.1, a first slide rail 10.2 located at the base plate 10.1, a U-shaped mounting frame 10.3 installed on the first slide rail 10.2, a first locking bolt 10.4 for locking the mounting frame 10.3 and the base plate 10.1, and a positioning bolt 10.5 for locking the mounting frame 10.3 and the base plate 10.1. A second slide rail 10.5 on the mounting frame 10.3, a movable seat 10.6 mounted on the second slide rail 10.5, a second image acquisition unit 10.7 mounted on the movable seat 10.6, a second inkjet unit body 10.8 mounted on the movable seat 10.6, an electric push rod 10.9 mounted on the mounting frame 10.3 and used for driving the movable seat 10.6 to translate, a third slide rail located at the movable seat 10.6, a sleeve 10.10 mounted on the third slide rail, a second locking bolt 10.11 used for locking the position of the sleeve 10.10 and the third slide rail, a vertical plate 10.12 fixedly connected to the sleeve 10.10, and a pressure sensor 10.13 mounted on the vertical plate 10.12.

[0038] One end of the electric push rod 10.9 is connected to one end of the mounting frame 10.3, and the other end is connected to the movable seat 10.6; the electric telescopic rod 8.1 has two. The first inkjet unit includes a vertical frame 6.1, a first crossbar 6.2 connected to the vertical frame 6.1, a first slider 6.3 installed on the first crossbar 6.2, a third locking bolt 6.4 for locking the first crossbar 6.2 and the first slider 6.3, a second crossbar 6.5 connected to the first slider 6.3, a second slider 6.6 installed on the second crossbar 6.5, a fourth locking bolt 6.7 for locking the second slider 6.6 and the second crossbar 6.5, and a first inkjet unit body 6.8 installed at the second slider 6.6. It also includes a frame, and the control unit, the loading and conveying unit 1, the first unloading and conveying unit 2, the second unloading and conveying unit 3, the turntable drive unit 5, the L-shaped frame 9.1, the base plate 10.1 and the vertical frame 6.1 are all installed on the frame.

[0039] The specific coding method of the circuit board coding device of the present application includes the following steps:

[0040] 1) The loading conveying unit conveys the circuit board to the material transfer conveying unit at the loading position; at this time, the operator places one side of the circuit board against the side baffle of one side of the loading conveying unit (preferably the side away from the rotation direction) to achieve positioning of the circuit board.

[0041] 2) The turntable moves the circuit board to the coding position, and the first coding unit body codes the upper surface of the circuit board;

[0042] 3) The turntable moves the circuit board to the detection position, and the circuit board is conveyed by the material transfer and conveying unit and the first material unloading and conveying unit, so that the end of the circuit board abuts the lifting baffle (so that the circuit board actually spans between the material transfer and conveying unit and the first material unloading and conveying unit at this time); the first image acquisition unit is used to capture images to judge whether the inkjet coding on the upper surface of the circuit board is qualified; the second inkjet coding unit body is used to inkjet the lower surface of the circuit board, and the electric push rod moves the second image acquisition unit to below the inkjet coding on the lower surface of the circuit board. When the measured value of the pressure sensor is less than or equal to the set threshold value (during the extension of the electric push rod, the vertical plate also moves toward the direction of the circuit board, and the position of the vertical plate can be adjusted by the position of the sliding sleeve. In theory, after the electric push rod is extended by a set distance, the pressure sensor at the vertical plate just does not touch the edge of the circuit board, indicating that the circuit board always moves against the side baffle on one side of the conveying unit during the movement, and the positioning is accurate. Otherwise, it means that the positioning is inaccurate, which means that the position of the inkjet coding is also inaccurate, and therefore it is judged as a defective product), the inkjet coding image of the lower surface of the circuit board is captured to judge whether the inkjet coding is qualified;

[0043] 4) When the first image acquisition unit judges that the circuit board is qualified, the measured value of the pressure sensor is less than or equal to the set threshold, and the second image acquisition unit judges that the circuit board is qualified, the lifting baffle is lifted by the electric telescopic rod, and the circuit board is unloaded by the first unloading conveying unit; this indicates that the positioning of the circuit board during the entire transfer process is accurate, and the coding on the upper and lower surfaces is also accurate, and the circuit board is judged to be qualified;

[0044] 5) When the first image acquisition unit determines that the circuit board is unqualified, or the measured value of the pressure sensor is greater than the set threshold, or the second image acquisition unit determines that the circuit board is unqualified, the circuit board is transported back to the material transfer unit at the detection position, and the turntable is used to transfer the circuit board to the unloading position, and the second unloading conveying unit is used to unload the circuit board. At this time, it is judged as an unqualified product, so it is unloaded from the second unloading conveying unit to distinguish between qualified and unqualified products.

[0045] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be appreciated by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A circuit board coding device for circuit board production, characterized in that: It includes a control unit, a loading and conveying unit, a first unloading and conveying unit, a second unloading and conveying unit, a turntable, a turntable driving unit for driving the turntable to rotate, and a first coding unit. The turntable is equipped with four material moving and conveying units distributed in a ring shape with equal intervals. The turntable has a loading position, a coding position, a detection position and a unloading position. The loading and conveying unit faces the loading position, the first unloading and conveying unit faces the detection position, and the second unloading and conveying unit faces the unloading position. The first coding unit can code the circuit board at the coding position.

2. The circuit board coding device for circuit board production according to claim 1, characterized in that: The loading conveying unit, the first unloading conveying unit and the second unloading conveying unit are all conveyor belt conveying units, and have side baffles on both sides; the material transfer conveying units are all conveyor belt conveying units, and have side baffles on both sides, and a fixed baffle is connected between the two side baffles.

3. The circuit board coding device for circuit board production according to claim 2, characterized in that: It also includes a second coding unit and a first detection unit; an inverted U-shaped frame is connected between the two side baffles of the first unloading and conveying unit, a lifting baffle is provided under the inverted U-shaped frame, and an electric telescopic rod is connected between the lifting baffle and the inverted U-shaped frame; the first detection unit includes an L-shaped frame and a first image acquisition unit installed on the L-shaped frame; the second coding unit includes a base plate, a first slide rail located at the base plate, a U-shaped mounting frame installed on the first slide rail, a first locking bolt for locking the mounting frame and the base plate, a second slide rail located at the mounting frame, a movable seat installed on the second slide rail, a second image acquisition unit installed at the movable seat, a second coding unit body installed at the movable seat, an electric push rod installed on the mounting frame and used to drive the movable seat to translate, a third slide rail located at the movable seat, a sliding sleeve installed on the third slide rail, a second locking bolt for locking the position of the sliding sleeve and the third slide rail, a vertical plate fixedly connected to the sliding sleeve, and a pressure sensor installed at the vertical plate.

4. The circuit board coding device for circuit board production according to claim 3, characterized in that: One end of the electric push rod is connected to one end of the mounting frame, and the other end is connected to the movable seat; the electric telescopic rods are provided with two.

5. The circuit board coding device for circuit board production according to claim 3, characterized in that: The first inkjet coding unit includes a vertical frame, a first cross bar connected to the vertical frame, a first slider installed on the first cross bar, a third locking bolt for locking the first cross bar and the first slider, a second cross bar connected to the first slider, a second slider installed on the second cross bar, a fourth locking bolt for locking the second slider and the second cross bar, and a first inkjet coding unit body installed at the second slider.

6. The circuit board coding device for circuit board production according to claim 3, characterized in that: It also includes a frame, and the control unit, the loading conveying unit, the first unloading conveying unit, the second unloading conveying unit, the turntable driving unit, the L-shaped frame, the base plate and the vertical frame are all installed on the frame.

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