PCB (printed circuit board) UV (ultraviolet) exposure machine

Abstract

The utility model relates to a PCB (printed circuit board) UV (ultraviolet) exposure machine, which comprises a base, a feeding assembly, a detection assembly, a light source assembly and a light reflecting assembly, the light source assembly is arranged above the base, the feeding assembly is arranged at the front end of the base, the feeding assembly comprises a feeding plate and a servo motor in driving connection with the feeding plate, and the detection assembly is connected with the light reflecting assembly. The detection assembly is arranged above the feeding plate, and the detection assembly is used for scanning a circuit board arranged on the feeding plate; the light reflecting assembly comprises a plurality of light reflecting plates, the light reflecting plates are rotationally arranged on the side face of the light source assembly through rotating shafts, and the rotating shafts are in driving connection with a rotating driver.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit board production, in particular to a circuit board exposure machine. Background Art

[0002] The circuit board UV exposure machine is a device that realizes the graphic transfer process in the PCB production process. In this process, sufficient exposure is required to obtain a clear graphic. Too short exposure time and poor exposure will lead to a decrease in the yield rate. Therefore, it may lead to long exposure time and low exposure efficiency, and may also lead to problems such as large amount of photosensitive adhesive used. Utility Model Content

[0003] Based on the above problems, it is necessary to provide a PCB circuit board UV exposure machine.

[0004] The PCB circuit board UV exposure machine includes a base, a loading assembly, a detection assembly, a light source assembly, and a reflective assembly. The light source assembly is arranged above the base, the loading assembly is arranged at the front end of the base, the loading assembly includes a feed plate and a servo motor connected to the feed plate, and the detection assembly is arranged above the feed plate. The detection assembly is used to scan the circuit board arranged on the feed plate.

[0005] The reflective assembly includes a plurality of reflective plates, each of which is rotatably arranged on the side of the light source assembly via a rotating shaft, and the rotating shaft is driven and connected to a rotation driver.

[0006] In one embodiment, the reflective assembly further includes a main rotating shaft, each reflective plate is connected to the main rotating shaft, and the main rotating shaft is driven by a rotation driver.

[0007] In one embodiment, the light source assembly includes a plurality of exposure light sources, each of which is arranged above the base.

[0008] In one embodiment, an adjustment component is further included, and the adjustment component is used to adjust the light amount of the light source component.

[0009] In one embodiment, the adjustment assembly includes a telescopic plate, the telescopic plate is movably covered on the light source assembly, and the telescopic plate is driven and connected to a driving motor.

[0010] In one embodiment, an exposure station is provided on the base, and the light source assembly is arranged opposite to the exposure station.

[0011] In one embodiment, there are multiple exposure stations.

[0012] In one embodiment, a correction mechanism is further included, and the correction mechanism is used to adjust the circuit board so that it is aligned with the exposure station.

[0013] In one embodiment, the detection component includes a scanning camera and an image processing module, and the scanning camera and the image processing module are electrically connected.

[0014] In one embodiment, a control system is further included, and the feeding component, the detection component and the reflective component are all electrically connected to the control system.

[0015] The beneficial effects of the utility model are:

[0016] The circuit board is scanned by the detection component at the feeding plate to determine the photosensitive pattern and position on the circuit board. The feeding plate is driven by the servo motor to send the circuit board to be exposed to the base, and the light source component starts to expose the circuit board. Among them, the reflector adjusts the angle according to the photosensitive pattern and position of the circuit board to reflect the exposure light source to the light source component. According to the angle adjustment of the reflector, the reflected light source is concentrated on the position of the photosensitive pattern, thereby realizing full utilization of the exposure light source and achieving efficient exposure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic structural diagram of a PCB circuit board UV exposure machine according to an embodiment.

[0018] Figure 2 A side view of a PCB circuit board UV exposure machine according to one embodiment. DETAILED DESCRIPTION

[0019] For ease of understanding of the present application, the present application will be described more fully below. The present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items. In addition, in the description of this application, the meaning of "several" is at least one, such as one, two, etc., unless otherwise clearly and specifically limited.

[0021] In this application, the technical features described in an open manner include closed technical solutions composed of the listed features, and also include open technical solutions containing the listed features.

[0022] The utility model proposes a PCB circuit board UV exposure machine, such as Figure 1 and Figure 2 As shown, specifically, it includes a base 1, a loading component 6, a detection component 7, a light source component 4 and a reflective component. The light source component 4 is arranged above the base 1, and the light source component 4 is used to perform light radiation exposure on the circuit board coated with photosensitive adhesive to generate a pattern. The loading component 6 is arranged at the front end of the base 1, and the loading component 6 includes a feed plate 8 and a servo motor driven by the feed plate 8. The detection component 7 is arranged above the feed plate 8, and the detection component 7 is used to scan the circuit board set on the feed plate 8.

[0023] The reflective assembly includes a plurality of reflective plates 3 , each of which is rotatably arranged on the side of the light source assembly 4 via a rotating shaft 31 , and the rotating shaft 31 is driven by a rotating driver.

[0024] The beneficial effects of the utility model are:

[0025] The circuit board is scanned by the detection component 7 at the feeding plate 8 to determine the photosensitive pattern and position on the circuit board. The feeding plate 8 is driven by the servo motor to deliver the circuit board to be exposed to the base 1, and the light source component 4 starts to expose the circuit board. Among them, the reflector 3 adjusts the angle according to the photosensitive pattern and position of the circuit board, and generates an exposure light source 41 for the light source component 4. According to the angle adjustment of the reflector 3, the reflected light source is concentrated on the photosensitive pattern position, thereby realizing full utilization of the exposure light source 41 and achieving efficient exposure.

[0026] In one embodiment, the reflective assembly further includes a main rotating shaft (not shown), to which each reflector is connected. The main rotating shaft (not shown) is rotatably connected to a rotary actuator. The main rotating shaft (not shown) can drive the reflectors connected thereto to rotate, enabling multi-directional control of the reflector positions based on the photosensitive pattern, allowing the reflected light source to be more precisely focused on the photosensitive pattern, thereby improving exposure efficiency.

[0027] In one embodiment, the light source assembly 4 includes a plurality of exposure light sources 41, each of which is arranged above the base 1. By arranging and distributing the exposure light sources 41, the photosensitive pattern on the circuit board is evenly covered, and the reflector 3 can effectively utilize the exposure light sources 41 for reflection.

[0028] In order to scan the detection assembly 7 and thereby determine the photosensitive pattern on the circuit board, in one embodiment, the detection assembly 7 includes a scanning camera 71 and an image processing module 9, and the scanning camera 71 and the image processing module 9 are electrically connected. The scanning camera 71 photographs the circuit board on the feed plate 8. The captured image is passed through the image processing module 9 to determine the position of the pattern to be exposed. The angle of the reflector 3 is then adjusted to focus the reflected light source on the photosensitive pattern position, thereby fully utilizing the exposure light source 41 and achieving efficient exposure.

[0029] Preferably, the PCB circuit board UV exposure machine also includes a control system, and the loading component 6, the detection component 7 and the reflective component are all electrically connected to the control system, and the scanning of the circuit board, the regulation of the reflective plate 3, etc. are controlled by the control system.

[0030] In one embodiment, an adjustment assembly is further included, configured to adjust the light intensity of the light source assembly 4. Specifically, for example, the adjustment assembly includes a retractable plate 5 that movably covers the light source assembly 4 and is driven by a drive motor. The retractable plate 5 is electrically driven to cover the light source assembly 4, controlling the amount of light passing through the light source assembly 4. This allows the light source assembly 4 to be centered on the photosensitive pattern based on the determination of the photosensitive pattern, and the amount of light passing through is adjusted based on the size of the photosensitive pattern to prevent overexposure that could affect the circuit board.

[0031] In one embodiment, an exposure station is provided on the base 1, and the light source assembly 4 is disposed opposite the exposure station. In one embodiment, the exposure station is provided in a plurality. The provision of multiple exposure stations allows for simultaneous exposure of multiple circuit boards, thereby improving exposure efficiency.

[0032] In one embodiment, the PCB UV exposure machine further includes a deflection correction mechanism (not shown) for adjusting the PCB so that it is aligned with the exposure station. Adjusting the PCB to the exposure station can improve the accuracy and efficiency of the exposure.

[0033] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0034] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A PCB circuit board UV exposure machine, characterized in that: The system comprises a base, a feeding assembly, a detection assembly, a light source assembly and a reflective assembly. The light source assembly is arranged above the base, the feeding assembly is arranged at the front end of the base, the feeding assembly comprises a feeding plate and a servo motor connected to the feeding plate, the detection assembly is arranged above the feeding plate, and the detection assembly is used to scan the circuit board arranged on the feeding plate; The reflective assembly includes a plurality of reflective plates, each of which is rotatably arranged on the side of the light source assembly via a rotating shaft, and the rotating shaft is driven and connected to a rotation driver.

2. The PCB circuit board UV exposure machine according to claim 1, characterized in that: The reflective assembly further comprises a main rotating shaft, each reflective plate is connected to the main rotating shaft, and the main rotating shaft is driven and connected to a rotation driver.

3. The PCB circuit board UV exposure machine according to claim 1, characterized in that: The light source assembly includes a plurality of exposure light sources, and each of the exposure light sources is arranged above the base.

4. The PCB circuit board UV exposure machine according to claim 3, characterized in that: It also includes an adjustment component, which is used to adjust the light amount of the light source component.

5. The PCB circuit board UV exposure machine according to claim 4, characterized in that: The adjustment component includes a telescopic plate, the telescopic plate is movably covered on the light source component, and the telescopic plate is driven and connected to a driving motor.

6. The PCB circuit board UV exposure machine according to claim 1, characterized in that: An exposure station is arranged on the base, and the light source assembly is arranged opposite to the exposure station.

7. The PCB circuit board UV exposure machine according to claim 6, characterized in that: There are multiple exposure stations.

8. The PCB circuit board UV exposure machine according to claim 7, characterized in that: It also includes a correction mechanism, which is used to adjust the circuit board so that it is aligned with the exposure station.

9. The PCB circuit board UV exposure machine according to claim 1, characterized in that: The detection component includes a scanning camera and an image processing module, and the scanning camera and the image processing module are electrically connected.

10. The PCB circuit board UV exposure machine according to claim 1, characterized in that: It also includes a control system, and the feeding component, the detection component and the reflective component are all electrically connected to the control system.

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