A multi-layer baking rack for printed wiring boards

Abstract

This utility model discloses a multi-layer baking rack for printed circuit boards (PCBs), relating to the field of PCB processing technology. It includes a movable support with multiple rotating rods rotatably mounted on both sides. It also includes a clamping structure for fixing the PCBs and a transmission structure for assisting the rotation of the PCBs. The clamping structure includes a connecting plate mounted on the ends of the rotating rods that are far apart from each other. Connecting grooves are installed at both ends of the connecting plate. Vertical sliding rods are installed inside each connecting groove, and two sliders are slidably mounted on the outer walls of each sliding rod. A telescopic spring is sleeved on the outer walls of the sliding rods between the sliders, and a clamping mesh plate is connected to one side of each slider. This utility model fixes the PCBs using the clamping structure, while the transmission structure controls the rotation of multiple PCBs, allowing them to rotate inside the baking machine for uniform baking.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board processing technology, specifically a multi-layer baking rack for printed circuit boards. Background Technology

[0002] Printed circuit boards (PCBs) are core components of electronic devices, and their manufacturing process is complex, involving multiple steps such as drilling, electroplating, coating, developing, and etching. Among these steps, coating drying, solvent evaporation, and stress relief are key aspects. Therefore, PCBs need to be fixed in a baking rack and placed inside a baking machine for baking.

[0003] Traditional baking racks used to be single-layer metal racks, which could only bake a small number of printed circuit boards at a time, resulting in low production capacity and efficiency. In contrast, simple multi-layer structures had multiple printed circuit boards fixed inside during use, making it difficult to rotate them and resulting in poor baking uniformity. Utility Model Content

[0004] The purpose of this invention is to provide a multi-layer baking rack for printed circuit boards to solve the problem of poor baking uniformity mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer baking rack for printed circuit boards, including a movable support, on both sides of which multiple rotating rods are rotatably mounted, and also including a clamping structure for fixing the printed circuit board and a transmission structure for assisting the rotation of the printed circuit board.

[0006] The clamping structure includes a connecting plate, which is installed at the ends of the rotating rods that are far apart from each other. Both the front and rear ends of the connecting plate are equipped with connecting grooves. Each connecting groove has a vertically installed sliding rod inside it. Two sliders are slidably installed on the outer wall of each sliding rod. A telescopic spring is sleeved on the outer wall of each sliding rod between the sliders. A clamping mesh plate is connected to one side of each slider. Each clamping mesh plate has an installation handle installed at the ends that are far apart from each other.

[0007] The transmission structure includes a servo motor, a drive rod is installed at the output end of the servo motor, and multiple drive gears are installed on the outer wall of the drive rod. Each of the rotating rods has a driven gear installed at one end that is close to the other.

[0008] Preferably, one side of each slider extends to the side of the connecting groove near the clamping mesh plate, and the telescopic spring is fixedly installed between the sliders.

[0009] Preferably, the clamping mesh plates are all configured to slide via sliders and slide rods.

[0010] Preferably, the top end of the drive rod extends through the movable bracket to the top end inside the movable bracket, and the drive rod is rotatably mounted at the top end inside the movable bracket.

[0011] Preferably, the ends of the rotating rods that are close to each other pass through the movable bracket, and the ends of the rotating rods that are close to each other extend into the interior of the movable bracket.

[0012] Preferably, the drive gear is located below the driven gear, and the drive gear and the driven gear mesh with each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Under the reaction force of the telescopic spring, the slider drives the clamping screen to move closer to each other, and the printed circuit board can be fixed by the clamping screen. Then the whole baking rack can be placed into the baking machine. During the baking process, the servo motor is started, and the servo motor drives the drive rod to rotate, which in turn drives the drive gear to rotate. Since the drive gear and the driven gear mesh with each other, the driven gear drives the rotating rod to rotate, which in turn drives the clamping screen and the printed circuit board to rotate. The clamping structure fixes the printed circuit board, and the transmission structure can control the rotation of multiple printed circuit boards, so that multiple printed circuit boards can be flipped inside the baking machine for uniform baking. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0015] Figure 2 This is a three-dimensional sectional view of the movable support frame of this utility model;

[0016] Figure 3 This is a schematic diagram of the front sectional view of the present invention;

[0017] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0018] Figure 5 For the present utility model Figure 3 Enlarged structural diagram at point B.

[0019] In the diagram: 1. Movable support; 2. Servo motor; 3. Clamping mesh plate; 4. Rotating rod; 5. Connecting plate; 6. Connecting slide; 7. Mounting handle; 8. Drive gear; 9. Drive rod; 10. Driven gear; 11. Slider; 12. Telescopic spring; 13. Slide rod. Detailed Implementation

[0020] 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 protection scope of the present utility model.

[0021] Example 1: Please refer to Figure 1-5 A multi-layer baking rack for printed circuit boards includes a movable support 1, with multiple rotating rods 4 rotatably mounted on both sides of the movable support 1, and also includes a clamping structure for fixing the printed circuit board and a transmission structure for assisting the rotation of the printed circuit board.

[0022] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, the clamping structure includes a connecting plate 5, which is installed at one end of the rotating rod 4 that is far apart from each other. Both ends of the connecting plate 5 are equipped with connecting grooves 6. A sliding rod 13 is vertically installed inside the connecting groove 6. Two sliders 11 are slidably installed on the outer wall of the sliding rod 13. A telescopic spring 12 is sleeved on the outer wall of the sliding rod 13 between the sliders 11. A clamping mesh plate 3 is connected to one side of the slider 11. An installation handle 7 is installed at one end of the clamping mesh plate 3 that is far apart from each other.

[0023] One side of the slider 11 extends to the side of the connecting groove 6 near the clamping mesh plate 3, and the telescopic spring 12 is fixedly installed between the sliders 11;

[0024] The clamping screen 3 is formed by sliding structure through slider 11 and slide rod 13. When in use, the installation handle 7 is released. Under the reaction force of the telescopic spring 12, the slider 11 drives the clamping screen 3 to move towards each other. The printed circuit board can be fixed by clamping the screen 3.

[0025] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the transmission structure includes a servo motor 2, a drive rod 9 is installed at the output end of the servo motor 2, and multiple drive gears 8 are installed on the outer wall of the drive rod 9. Driven gears 10 are installed at the ends of the rotating rods 4 that are close to each other.

[0026] The top end of the drive rod 9 extends through the movable bracket 1 to the top end inside the movable bracket 1, and the drive rod 9 is rotatably mounted at the top end inside the movable bracket 1.

[0027] The ends of the rotating rods 4 that are close to each other pass through the movable bracket 1, and the ends of the rotating rods 4 that are close to each other extend into the interior of the movable bracket 1;

[0028] The drive gear 8 is located below the driven gear 10, and the drive gear 8 and the driven gear 10 mesh with each other. When in use, the servo motor 2 is started, and the drive rod 9 is rotated by the servo motor 2, which in turn drives the drive gear 8 to rotate. Since the drive gear 8 and the driven gear 10 mesh with each other, the driven gear 10 drives the rotating rod 4 to rotate, which in turn drives the clamping screen 3 and the printed circuit board to rotate.

[0029] Working principle: The operator holds the installation handle 7 and controls the clamping screens 3 to move away from each other. The clamping screens 3 drive the slider 11, causing the slider 11 to slide away from each other on the outer wall of the slide rod 13, and stretching the telescopic spring 12. Then, the operator places the printed circuit board to be baked between the clamping screens 3 and releases the installation handle 7. Under the reaction force of the telescopic spring 12, the slider 11 drives the clamping screens 3 to move closer to each other, thus fixing the printed circuit board. Then, the entire baking rack can be placed into the baking machine. During the baking process, the servo motor 2 is started, which drives the drive rod 9 to rotate, causing the drive rod 9 to drive the drive gear 8 to rotate. Since the drive gear 8 and the driven gear 10 mesh with each other, the driven gear 10 drives the rotating rod 4 to rotate, which in turn drives the clamping screens 3 and the printed circuit board to rotate, so that the printed circuit board is baked evenly.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A multi-layer baking rack for printed circuit boards, comprising a movable support (1), wherein multiple rotating rods (4) are rotatably mounted on both sides of the movable support (1), characterized in that: It also includes a clamping structure for fixing the printed circuit board and a transmission structure for assisting the rotation of the printed circuit board. The clamping structure includes a connecting plate (5), which is installed at one end of the rotating rod (4) away from each other. Both ends of the connecting plate (5) are equipped with connecting grooves (6). The interior of each connecting groove (6) is equipped with a sliding rod (13), and two sliders (11) are slidably installed on the outer wall of each sliding rod (13). A telescopic spring (12) is sleeved on the outer wall of the sliding rod (13) between the sliders (11). A clamping mesh plate (3) is connected to one side of each slider (11), and an installation handle (7) is installed at one end of each clamping mesh plate (3) away from each other. The transmission structure includes a servo motor (2), the output end of which is equipped with a drive rod (9), and the outer wall of the drive rod (9) is equipped with multiple drive gears (8). The rotating rods (4) are each equipped with a driven gear (10) at their close ends.

2. The multi-layer baking rack for printed circuit boards according to claim 1, characterized in that: One side of each slider (11) extends to the side of the connecting groove (6) near the clamping mesh plate (3), and the telescopic spring (12) is fixedly installed between the sliders (11).

3. The multi-layer baking rack for printed circuit boards according to claim 1, characterized in that: The clamping mesh plates (3) all form a sliding structure through the slider (11) and the slide rod (13).

4. The multi-layer baking rack for printed circuit boards according to claim 1, characterized in that: The top end of the drive rod (9) extends through the movable bracket (1) to the top end inside the movable bracket (1), and the drive rod (9) is rotatably mounted at the top end inside the movable bracket (1).

5. The multi-layer baking rack for printed circuit boards according to claim 1, characterized in that: The ends of the rotating rods (4) that are close to each other all pass through the movable bracket (1), and the ends of the rotating rods (4) that are close to each other all extend into the interior of the movable bracket (1).

6. The multi-layer baking rack for printed circuit boards according to claim 1, characterized in that: The drive gear (8) is located below the driven gear (10), and the drive gear (8) and the driven gear (10) mesh with each other.

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