LED exposure machine for PCB production

Abstract

The utility model discloses a kind of LED exposure machines for PCB production, belong to PCB processing equipment technical field, the utility model includes exposure machine body, exposure machine body includes rack and exposure box, exposure box is set on rack, both sides of exposure box board are embedded with fixed assembly, fixed assembly includes fixed frame, rectangular through slot is opened in fixed frame symmetrically, arc clamping plate is matched in rectangular through slot, heat dissipation mesh plate is matched in fixed frame, arc clamping slot is opened in the upper and lower ends of heat dissipation mesh plate, arc clamping plate is matched with arc clamping slot, the utility model is structured by fixed assembly design, can significantly simplify dismounting operation step, shorten maintenance time, guarantee the execution of regular dust cleaning work, solve the problem that dismounting process of heat dissipation structure is more complicated, is not conducive to regular cleaning and maintenance.

Description

Technical Field

[0001] This utility model relates to the technical field of PCB board processing equipment, specifically to an LED exposure machine for PCB board production. Background Technology

[0002] In the PCB manufacturing process, the LED exposure machine is one of the key pieces of equipment. The stability of its working performance directly affects the imaging quality of the circuit pattern and the production efficiency. When the LED exposure machine is working, the light source components and electronic components inside it will generate continuous heat. If the heat cannot be dissipated in time, the temperature inside the exposure chamber will rise, which may cause the optical components to shift, the light source wavelength to drift, or the performance of electronic control components to degrade, ultimately affecting the exposure accuracy and the service life of the equipment.

[0003] Currently, most common heat dissipation structures for exposure machines use fixed heat dissipation mesh or filters for ventilation and dust blocking. These structures tend to accumulate dust during long-term use, affecting ventilation efficiency. Furthermore, the disassembly and assembly process is cumbersome and not conducive to regular cleaning and maintenance. Therefore, it is necessary to design an LED exposure machine for PCB board production to improve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide an LED exposure machine for PCB board production. Through the structural design of the fixed components, the disassembly and assembly steps can be significantly simplified, the maintenance time can be shortened, and the execution of regular dust cleaning can be guaranteed. This solves the problem that the disassembly and assembly process of the heat dissipation structure is cumbersome and not conducive to regular cleaning and maintenance.

[0005] This utility model is achieved through the following technical solution:

[0006] This utility model is an LED exposure machine for PCB board production, including an exposure machine body, which includes a frame and an exposure box, with the exposure box mounted on the frame.

[0007] Both sides of the exposure chamber are embedded with fixing components, which include a fixing frame. Rectangular through slots are symmetrically opened in the fixing frame, and arc-shaped retaining plates are fitted in the rectangular through slots. A heat dissipation mesh plate is fitted in the fixing frame, and arc-shaped retaining slots are opened at both the top and bottom of the heat dissipation mesh plate. The arc-shaped retaining plates cooperate with the arc-shaped retaining slots.

[0008] One end of the arc-shaped plate passes through the rectangular through slot to the outside of the fixed frame. Fixing rings are provided on both sides of one end of the arc-shaped plate. Two uprights are provided at the top and bottom ends of the fixed frame. Springs are fitted on the surface of the uprights. The inner ring of the fixing ring is fitted with the outer surface of the bottom end of the upright.

[0009] Furthermore, both sides of the exposure box are provided with receiving slots, and the fixing frame is fitted into the receiving slots.

[0010] Furthermore, a limiting baffle is fitted inside the fixed frame. The limiting baffle is a "U"-shaped baffle that abuts against the side of the heat dissipation mesh.

[0011] Furthermore, an exhaust assembly is embedded in the top of the exposure chamber, the bottom of the exhaust assembly is located inside the exposure chamber, and an assembly frame is provided at the bottom of the exhaust assembly, with multiple heat dissipation fins evenly distributed at the bottom of the assembly frame.

[0012] Furthermore, the exhaust assembly includes a mounting frame, within which two ventilation fans are installed, and a dustproof screen is provided on the mounting frame.

[0013] Furthermore, the top of the exposure box is provided with a receiving slot 2, and the mounting frame fits into the receiving slot 2.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model utilizes a quick-assembly and disassembly structure consisting of a fixed frame, an arc-shaped clamping plate, springs, and uprights. By overcoming the spring force, the arc-shaped clamping plate disengages from the slot of the heat dissipation mesh plate, allowing the heat dissipation mesh plate to be removed. During installation, the arc-shaped clamping plate is pressed against the two ends of the heat dissipation mesh plate, causing it to automatically lock in place under the restoring action of the springs. This significantly simplifies the disassembly and assembly process, shortens maintenance time, ensures the execution of regular dust cleaning, effectively avoids the problem of reduced ventilation efficiency caused by dust blockage, and ensures the long-term stable heat dissipation performance of the exposure chamber.

[0016] 2. This utility model adds an assembly frame with dense heat dissipation fins to the exhaust assembly and its bottom. When the exhaust fan is working, the hot air in the exposure chamber flows through these heat dissipation fins with a large surface area. The heat is quickly conducted to the fins and dissipated through forced convection, thereby effectively enhancing the heat exchange capacity of the exposure chamber. It quickly removes the heat accumulated in key areas inside the exposure chamber, especially around the light source and electronic components, effectively suppressing the rise in internal temperature. This provides a more stable and reliable working environment for optical components and precision electronic components, ensuring the imaging accuracy and long-term operational stability of the exposure machine.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an LED exposure machine.

[0019] Figure 2 This is a schematic diagram of the assembly structure of an LED exposure machine.

[0020] Figure 3 This is a schematic diagram of the installation structure for the fixed components.

[0021] Figure 4 This is a schematic diagram of the installation structure of the arc-shaped card plate.

[0022] In the diagram: 1. Exposure machine body; 2. Frame; 3. Exposure chamber; 4. Fixing assembly; 401. Fixing frame; 4011. Rectangular through slot; 4012. Limiting baffle; 402. Arc-shaped clamping plate; 403. Fixing ring; 404. Upright pole; 405. Spring; 5. Heat dissipation mesh plate; 501. Arc-shaped slot; 6. Exhaust assembly; 7. Assembly frame; 701. Heat dissipation fins. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution: an LED exposure machine for PCB board production, including an exposure machine body 1, the exposure machine body 1 including a frame 2 and an exposure box 3, the exposure box 3 being disposed on the frame 2.

[0025] Both side panels of the exposure chamber 3 are embedded with fixing components 4, each including a fixing frame 401. Each side panel of the exposure chamber 3 has a receiving slot, and the fixing frame 401 fits into the receiving slot, facilitating installation and communication between the fixing frame 401 and the exposure chamber 3. Rectangular slots 4011 are symmetrically formed within the fixing frame 401, and an arc-shaped retaining plate 402 fits within the rectangular slot 4011. A heat dissipation mesh plate 5 fits within the fixing frame 401. Both the top and bottom ends are provided with arc-shaped slots 501, and the arc-shaped plates 402 cooperate with the arc-shaped slots 501. The fixed frame 401 is fitted with a limiting baffle 4012. The limiting baffle 4012 is a "U"-shaped baffle. The limiting baffle 4012 abuts against the side of the heat dissipation mesh plate 5. Within the fixed frame 401, the heat dissipation mesh plate 5 can be restricted between the limiting baffle 4012 and the two arc-shaped plates 402, thereby improving the installation stability of the heat dissipation mesh plate 5 within the fixed frame 401.

[0026] One end of the arc-shaped plate 402 passes through the rectangular through slot 4011 to the outside of the fixed frame 401. Fixing rings 403 are provided on both sides of one end of the arc-shaped plate 402. Two uprights 404 are provided at both the upper and lower ends of the fixed frame 401. Springs 405 are fitted on the surface of the uprights 404. The inner ring of the fixing ring 403 is fitted with the outer surface of the bottom end of the upright 404.

[0027] An exhaust assembly 6 is embedded in the top of the exposure chamber 3. The bottom of the exhaust assembly 6 is located inside the exposure chamber 3. A mounting frame 7 is provided at the bottom of the exhaust assembly 6. Multiple heat dissipation fins 701 are evenly arranged at the bottom of the mounting frame 7, which can easily absorb the heat inside the exposure chamber 3 and accelerate the heat dissipation inside the exposure chamber 3. The exhaust assembly 6 includes a mounting frame, and two ventilation fans are provided inside the mounting frame. A dustproof net is provided on the mounting frame to facilitate the exhaust of hot gas inside the exposure chamber 3. A receiving slot 2 is opened in the top of the exposure chamber 3. The mounting frame fits into the receiving slot 2 to facilitate the installation and connection between the exhaust assembly 6 and the exposure chamber 3.

[0028] During normal operation of this LED exposure machine, the heat generated by the internal light source and electronic components will raise the air temperature inside the exposure chamber 3. At this time, the ventilation fan in the exhaust assembly 6 is activated to continuously draw the hot air out of the chamber. During this process, the hot air flows through the heat dissipation fins 701 at the bottom of the assembly frame 7. Since the heat dissipation fins 701 provide a huge effective heat dissipation area, the heat can be quickly absorbed and transferred to the fins, and then carried away by the airflow, thereby significantly accelerating the heat dissipation rate and effectively maintaining the working temperature inside the exposure chamber 3.

[0029] When the heat dissipation mesh plate 5 accumulates dust due to prolonged use and needs cleaning, maintenance personnel only need to simultaneously pull the two arc-shaped clamping plates 402 at the upper and lower ends of the heat dissipation mesh plate 5 on the side to be removed. Overcoming the elastic force of the spring 405, the two arc-shaped clamping plates 402 will move towards each other, causing their arc-shaped ends to exit from the arc-shaped slots 501 of the heat dissipation mesh plate 5. After the two arc-shaped clamping plates 402 are completely disengaged from the two arc-shaped slots 501 on the heat dissipation mesh plate 5, the heat dissipation mesh plate 5 can be directly removed from the fixing frame 401 for cleaning and maintenance. Similarly, after cleaning and maintenance, the above operation is repeated in reverse order to install the heat dissipation mesh plate 5, thus completing the convenient fixing of the heat dissipation mesh plate 5. The whole process requires no tools, is simple and quick, greatly facilitating the daily maintenance of the equipment, ensuring the long-term unobstructed heat dissipation channel, and thus ensuring the stable operation of this LED exposure machine.

[0030] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An LED exposure machine for PCB board production, comprising an exposure machine body (1), characterized in that: The exposure machine body (1) comprises a frame (2) and an exposure box (3), wherein the exposure box (3) is arranged on the frame (2); Fixing assemblies (4) are embedded in both side plates of the exposure box (3), each fixing assembly (4) comprises a fixing frame (401), rectangular through grooves (4011) are symmetrically formed in the fixing frame (401), arc-shaped clamping plates (402) are fitted in the rectangular through grooves (4011), a heat-dissipating mesh plate (5) is fitted in the fixing frame (401), arc-shaped clamping grooves (501) are formed in both the upper end and the lower end of the heat-dissipating mesh plate (5), and the arc-shaped clamping plates (402) are fitted with the arc-shaped clamping grooves (501); One end of each arc-shaped clamping plate (402) passes through the corresponding rectangular through groove (4011) to the outside of the fixing frame (401), fixing rings (403) are arranged on both sides of one end of each arc-shaped clamping plate (402), two vertical rods (404) are arranged at both the upper end and the lower end of the fixing frame (401), springs (405) are fitted on the surfaces of the vertical rods (404), and inner rings of the fixing rings (403) are fitted with outer surfaces of bottom ends of the vertical rods (404).

2. The LED exposure machine for PCB board production according to claim 1, characterized in that, First accommodating through grooves are formed in both side plates of the exposure box (3), and the fixing frames (401) are fitted in the first accommodating through grooves.

3. The LED exposure machine for PCB board production according to claim 2, characterized in that, Limit stopping pieces (4012) are fitted in the fixing frames (401), each limit stopping piece (4012) is a square-shaped stopping piece, and the limit stopping pieces (4012) abut against side faces of the heat-dissipating mesh plate (5).

4. An LED exposure machine for PCB board production according to any one of claims 1-3, characterized in that, An exhaust assembly (6) is embedded in the top of the exposure box (3), the bottom of the exhaust assembly (6) is located in the exposure box (3), an assembly frame (7) is arranged at the bottom of the exhaust assembly (6), and a plurality of heat-dissipating fins (701) are uniformly arranged at the bottom of the assembly frame (7).

5. The LED exposure machine for PCB board production according to claim 4, characterized in that, The exhaust assembly (6) comprises a mounting frame, two ventilation fans are arranged in the mounting frame, and a dust-proof mesh is arranged on the mounting frame.

6. The LED exposure machine for PCB board production according to claim 5, characterized in that, A second accommodating through groove is formed in the top of the exposure box (3), and the mounting frame is fitted in the second accommodating through groove.

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