PCB laser scanning solder mask exposure improved structure

Abstract

The utility model discloses a PCB laser scanning solder mask exposure improved structure. The PCB laser scanning solder mask exposure improved structure comprises PCB exposure equipment, a positioning plate and four positioning strips, wherein the positioning plate is arranged on the PCB exposure equipment, the four positioning strips are arranged on the positioning plate in a sliding manner, a slide way is formed in the positioning plate, the slide way is of a cross structure, and each positioning strip is arranged in the slide way through a sliding part. The design of the positioning strip not only improves the adaptability and flexibility of the PCB laser scanning solder mask exposure device, so that the PCB laser scanning solder mask exposure device can easily cope with PCBs of various sizes, but also simplifies the operation process, reduces the difficulty and time cost of manual adjustment, and meanwhile, the friction force between the positioning strip and the positioning plate is enhanced by using the rubber material, so that the welding mask exposure device has the advantages of simple structure and high reliability. And the stability of the positioning strip is ensured, so that the exposure precision and the product quality are further improved.

Description

Technical Field

[0001] This utility model relates to the field of PCB board exposure technology, specifically to an improved structure for PCB laser scanning solder mask exposure. Background Technology

[0002] The PCB laser scanning solder resist exposure device is a specialized piece of equipment used in the manufacturing process of printed circuit boards (PCBs). It exposes the PCB board through laser scanning to achieve high-precision circuit pattern transfer.

[0003] For PCB laser scanning solder resist exposure devices, a positioning structure is usually provided to position the PCB board. When the PCB board is placed on the positioning structure, the positioning structure provides a limit to the PCB board to ensure its stability. However, the positioning structure in the existing technology does not have an adjustable function. Since the size and shape of the PCB board may vary due to different production needs, the ideal positioning structure should be able to flexibly adapt to PCB boards of various sizes. However, the existing positioning structure often adopts a fixed size design and cannot be adjusted according to the actual size of the PCB board. This means that in practical applications, for PCB boards of different sizes, it may be necessary to replace the positioning structure with one of different specifications, or to manually adjust the position of the PCB board to fit the positioning structure as much as possible. This not only increases the complexity and time cost of operation, but may also affect the exposure accuracy and stability due to improper adjustment. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of this utility model is to provide an improved structure for PCB laser scanning solder mask exposure.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An improved structure for laser scanning solder resist exposure on PCBs includes a PCB exposure device, a positioning plate, and four positioning strips;

[0007] The positioning plate is installed on the PCB exposure equipment. The four positioning strips are slidably mounted on the positioning plate. The positioning plate has a slide rail with a cross structure. Each positioning strip is mounted in the slide rail by a sliding member.

[0008] As a further embodiment of this utility model: the sliding component includes a slider, a limiting plate, and a movable block. The slider is slidably disposed in the slide rail, and a groove is provided on the top surface of the slider. The limiting plate is fixed to the bottom surface of the slider. The movable block is slidably disposed in the slide rail, and the top end of the movable block extends to the outside of the groove and is fixedly connected to the positioning strip. A spring is provided between the movable block and the slider.

[0009] As a further embodiment of this utility model, the side surface of the slider and the inner surface of the slide rail are in contact with each other.

[0010] As a further embodiment of this utility model, the top surface of the limiting plate and the bottom surface of the positioning plate are fitted together.

[0011] As a further embodiment of this utility model, a handle is fixed to the top surface of the positioning strip.

[0012] As a further embodiment of this invention, the positioning strip is made of rubber material.

[0013] The beneficial effects of this utility model are:

[0014] This adjustable positioning bar design not only improves the adaptability and flexibility of the PCB laser scanning solder mask exposure device, enabling it to easily handle PCBs of various sizes, but also simplifies the operation process, reduces the difficulty and time cost of manual adjustment. At the same time, the use of rubber material enhances the friction between the positioning bar and the positioning plate, ensuring the stability of the positioning bar, thereby further improving the exposure accuracy and product quality. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a structural diagram of the positioning plate and four positioning strips;

[0018] Figure 3 This is a cross-sectional view of the positioning plate.

[0019] Figure 4 yes Figure 3 Enlarged view of the structure at point A.

[0020] In the diagram: 1. PCB exposure equipment; 2. Positioning plate; 3. Slide rail; 4. Positioning strip; 51. Slider; 52. Limiting plate; 53. Movable block; 54. Spring. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] like Figure 1-4As shown, an improved structure for laser scanning solder mask exposure of PCB includes a PCB exposure device 1, a positioning plate 2, and four positioning strips 4. A handle is fixed to the top surface of each positioning strip 4, and the positioning strips 4 are made of rubber. The positioning plate 2 is mounted on the PCB exposure device 1, and the four positioning strips 4 are slidably mounted on the positioning plate 2. A slide rail 3 is provided on the positioning plate 2, and the slide rail 3 has a cross-shaped structure. Each positioning strip 4 is mounted within the slide rail 3 via a sliding component. The operator places the PCB board to be processed on the positioning plate 2, ensuring that all four positioning strips 4 are in contact with the PCB board, thereby guaranteeing the stability of the PCB board on the positioning plate 2. After the PCB board is placed, the positioning plate 2 automatically moves into the interior of the PCB exposure device 1, where the PCB exposure device 1 performs the exposure treatment on the PCB board. The specific structure and working principle of the PCB exposure device 1 are existing technologies and will not be elaborated upon here.

[0023] The sliding component includes a slider 51, a limiting plate 52, and a movable block 53. The slider 51 is slidably disposed within the slide rail 3, with its side surface in contact with the inner surface of the slide rail 3. A groove is provided on the top surface of the slider 51. The limiting plate 52 is fixed to the bottom surface of the slider 51, with its top surface in contact with the bottom surface of the positioning plate 2. The movable block 53 is slidably disposed within the slide rail 3, with its top end extending to the outside of the groove and fixedly connected to the positioning strip 4. A spring 54 is provided between the movable block 53 and the slider 51. When adjusting the position of the positioning strip 4, the operator first pulls the handle on the positioning strip 4, causing the positioning strip 4 to move upward. As the positioning strip 4 moves upward, it drives the movable block 53 to move, causing the movable block 53 to stretch the spring 54. At the same time, the positioning strip 4 will also separate from the positioning plate 2. When the positioning strip 4 separates from the positioning plate 2, the positioning strip 4 no longer restricts the movement of the slider 51. Then, the operator can directly adjust the position of the positioning strip 4 by pulling it.

[0024] The working principle of this utility model:

[0025] When using the PCB laser scanning solder mask exposure improvement structure proposed in this utility model, the operator places the PCB board to be processed on the positioning plate 2, so that all four positioning strips 4 are in contact with the PCB board, thereby ensuring the stability of the PCB board on the positioning plate 2. After the PCB board is placed, the positioning plate 2 automatically moves into the PCB exposure equipment 1, and the PCB exposure equipment 1 exposes the PCB board. The specific structure and working principle of the PCB exposure equipment 1 are existing technologies and will not be described in detail here.

[0026] For the positioning plate 2, the operator can adjust the position of the four positioning strips 4 according to the size of the PCB board, so that the four positioning strips 4 can provide positioning for PCB boards of different sizes. Specifically, when adjusting the position of the positioning strip 4, the operator first pulls up the handle on the positioning strip 4, so that the positioning strip 4 moves upward. When the positioning strip 4 moves upward, it drives the movable block 53 to move, so that the movable block 53 stretches the spring 54. At the same time, the positioning strip 4 will also separate from the positioning plate 2. When the positioning strip 4 separates from the positioning plate 2, the positioning strip 4 no longer restricts the movement of the slider 51. Then the operator can directly adjust the position of the positioning strip 4 by pulling it. After adjusting the positioning strip 4 to the appropriate position, the operator releases the positioning strip 4, so that the positioning strip 4 moves down and resets under the action of the spring 54. When the positioning strip 4 is fully reset, the positioning strip 4 will press against the top surface of the positioning plate 2. Since the positioning strip 4 is made of rubber material, there is a sufficiently large friction between the positioning strip 4 and the positioning plate 2. This friction fixes the position of the positioning strip 4, and the positioning strip 4 will not move without human intervention.

[0027] During the movement of the positioning bar 4, the slider 51 slides within the slide rail 3, and the side of the slider 51 is in contact with the inner surface of the slide rail 3. This ensures the stability of the slider 51 during movement. In addition, the bottom surface of the slider 51 is fixed with a limiting plate 52, and the limiting plate 52 is in contact with the bottom surface of the positioning plate 2. The setting of the limiting plate 52 can prevent the slider 51 from falling out of the slide rail 3.

[0028] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A modified structure for laser scanning solder resist exposure on PCBs, characterized in that, Includes PCB exposure equipment (1), positioning plate (2) and four positioning strips (4); The positioning plate (2) is set on the PCB exposure equipment (1), and the four positioning strips (4) are slidably set on the positioning plate (2). The positioning plate (2) is provided with a slide rail (3), which has a cross structure. Each positioning strip (4) is set in the slide rail (3) by a sliding member. The sliding component includes a slider (51), a limiting plate (52), and a movable block (53). The slider (51) is slidably disposed in the slide rail (3), and a groove is provided on the top surface of the slider (51). The limiting plate (52) is fixed to the bottom surface of the slider (51). The movable block (53) is slidably disposed in the slide rail (3). The top end of the movable block (53) extends to the outside of the groove and is fixedly connected to the positioning strip (4). A spring (54) is provided between the movable block (53) and the slider (51).

2. The improved PCB laser scanning solder mask exposure structure according to claim 1, characterized in that, The side of the slider (51) is in contact with the inner surface of the slide (3).

3. The improved PCB laser scanning solder mask exposure structure according to claim 1, characterized in that, The top surface of the limiting plate (52) and the bottom surface of the positioning plate (2) are in contact with each other.

4. The improved PCB laser scanning solder mask exposure structure according to claim 1, characterized in that, A handle is fixed to the top surface of the positioning strip (4).

5. The improved PCB laser scanning solder mask exposure structure according to claim 1, characterized in that, The positioning strip (4) is made of rubber material.

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