Exposure device for fine circuit board

Abstract

The utility model relates to the technical field of circuit board production, in particular to an exposure device for a fine circuit board. Comprising a mounting frame, placing tables are arranged on the mounting frame at intervals, a cover plate is further rotationally arranged on the mounting frame, mounting bases are arranged on the two sides of the mounting frame respectively, sliding rods are arranged on the two mounting bases in a penetrating and sliding mode, and a connecting plate is arranged between the front ends of the two sliding rods; a plurality of sets of limiting frames matched with the containing tables in number are arranged on the connecting plate at intervals, and the two limiting frames in each set are located on the sides close to the containing tables correspondingly. According to the utility model, by arranging the limiting frame and adopting the three-dimensional right-angle end design, the corner part of the circuit board can be stably attached to the limiting frame, so that accurate positioning is realized, the problem that the position is difficult to adjust due to the fact that a calibration line is difficult to observe in a traditional method is solved, the operation process is greatly simplified, and the production efficiency is improved. And meanwhile, the working intensity of operators is also reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board production, and in particular to an exposure device for fine circuit boards. Background Art

[0002] Exposure is a crucial step in the circuit board manufacturing process, determining the conductive paths and component placement on the board. This process involves the application of photolithography, the basic principle of which is to expose a photoresist-coated substrate to ultraviolet light or other types of light through a mask or template, causing a chemical change in the photoresist. Unwanted areas are then removed through development and other processes, ultimately leaving the desired circuit pattern on the substrate.

[0003] With traditional circuit board exposure equipment, operators need to precisely position the board on the exposure machine's workbench and ensure it aligns with the alignment marks or warning lines on the equipment. This is because any slight positional deviation can lead to errors in the circuit pattern in the final product, affecting the functionality of the entire circuit board. However, traditional methods rely on manual visual inspection to ensure that the alignment marks or warning lines are aligned with the circuit board. This method is not only time-consuming but also prone to errors due to factors such as operator fatigue. Especially when dealing with delicate circuit boards or conducting large-scale production, this method that relies on visual observation and manual calibration is inefficient and difficult to ensure consistency.

[0004] Therefore, in view of the above problems, there is an urgent need to propose an exposure device for fine circuit boards, which can effectively reduce the visual fatigue of operators caused by limiting and make the operation process simpler and easier. Utility Model Content

[0005] In order to overcome the shortcomings of the above-mentioned prior art, the utility model provides an exposure device for fine circuit boards, which can effectively reduce the visual fatigue of operators caused by limiting, making the operation process simpler and easier.

[0006] The technical solution is as follows: An exposure device for fine circuit boards, including an outer shell, a slide rail, a slider, a mounting frame, a cover plate, a placement table, a mounting seat, a slide rod, a connecting plate and a limit frame. Slide rails are arranged at intervals on both inner sides of the outer shell. Two slide rails on the same layer form a group. The components on the two groups of slide rails are assembled in the same way. Sliders are slidingly arranged on the slide rails. A mounting frame is arranged between the two sliders in the same group. Placement tables are arranged at intervals on the mounting frame, and a cover plate is also rotatably arranged on the mounting frame. An exposure assembly is assembled inside the cover plate for exposing circuit boards. A mounting seat is provided on each side of the mounting frame. Slide rods are penetrated and slidably arranged on the two mounting seats. A connecting plate is provided between the front ends of the two slide rods. Multiple groups of limit frames matching the number of placement tables are arranged on the connecting plate at intervals. The two limit frames of each group are located on one side of an adjacent placement table.

[0007] Optionally, one end of the limiting frame facing the placement table is right-angled, and the right-angled ends of the two limiting frames in the same group are arranged opposite to each other to form a matching clamping shape, which is suitable for limiting the position of the circuit board.

[0008] Optionally, a guide rod and a card plate are also included. The top of the mounting seat is provided with a guide rod, and a card plate is passed through and slidably provided on the guide rod. The card plate is in abutment with the connecting plate and the sliding rod on the same side.

[0009] Optionally, it also includes an installation shaft, a rotating frame and a push rod. Multiple installation shafts are arranged at intervals on the installation frame. A rotating frame located inside the installation frame is rotatably arranged between the installation shafts. Multiple groups of push rods matching the number of placement tables are arranged at intervals on the rotating frame. Slots are opened on the placement table, and the push rods pass through the corresponding slots as they rotate to lift the circuit board.

[0010] Optionally, an arc block is further included, and the arc block is arranged at the top end of the push rod.

[0011] Optionally, the placement table is provided with arranged through holes.

[0012] The utility model has the following advantages: 1. The utility model sets a limit frame and adopts a three-dimensional right-angle end design, so that the corner part of the circuit board can fit firmly with it, thereby achieving precise positioning. This method avoids the difficulty of position adjustment caused by the difficulty in observing the calibration line in the traditional method, greatly simplifies the operation process, and also reduces the workload of the operator.

[0013] 2. The utility model uses the design of the rotating frame to make it possible for the exposed circuit board to be easily lifted up through a simple lifting action, providing sufficient clearance for subsequent removal, thereby making the entire removal process more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 2 It is a three-dimensional structural diagram of the utility model's housing, slide rails, sliders and other components.

[0016] Figure 3 It is a three-dimensional structural diagram of the components such as the mounting seat, sliding rod and connecting plate of the utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the utility model including the installation shaft, rotating frame, push rod and other components.

[0018] In the above drawings: 1: housing, 2: slide rail, 3: slider, 4: mounting frame, 5: cover plate, 6: placement table, 7: mounting seat, 8: slide rod, 9: connecting plate, 10: limit frame, 11: guide rod, 12: clamping plate, 13: mounting shaft, 14: rotating frame, 15: push rod, 16: through hole, 17: arc block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Embodiment: An exposure device for fine circuit boards, such as Figures 1-4As shown, it includes a shell 1, a slide rail 2, a slider 3, an installation frame 4, a cover plate 5, a placement table 6, a mounting seat 7, a slide rod 8, a connecting plate 9 and a limit frame 10. The shell 1 provides a frame support for the entire device and protects the internal components from the external environment. Slide rails 2 are set at intervals on the left and right sides of the shell 1. The slide rails 2 are assembled in the front and back directions. The two slide rails 2 on the same layer are a group. The components on the two groups of slide rails 2 are assembled in the same way and can be slid and replaced separately. Slide rails 3 are slidably set on the slide rails 2, and a mounting bracket is set between the two slide rails 3 in the same group. The mounting frame 4 has a space in the middle to accommodate subsequent component assembly. Five placement platforms 6 are evenly spaced on the mounting frame 4. The placement platform 6 is used as a placement platform for circuit boards that need to be exposed. Arranged through holes 16 are provided on the placement platform 6 to ensure that the circuit boards are placed stably and to exhaust air. A cover plate 5 is also rotatably provided on the mounting frame 4. An exposure assembly is assembled inside the cover plate 5 for exposing the circuit boards. When the cover plate 5 is rotated and closed, it fits into the top surface of the corresponding mounting frame 4 to form a closed space. The circuit board is exposed in space. A mounting seat 7 is provided on the left and right sides of the mounting frame 4 respectively. The two mounting seats 7 are located in the front position, and a slide bar 8 is penetrated and slidably provided on the two mounting seats 7. The slide bar 8 is in a state of left and right movement. A connecting plate 9 is provided between the front ends of the two slide bars 8. The connecting plate 9 can fit with the front side of the mounting frame 4 as it moves, and five groups of limit frames 10 are arranged at intervals on the connecting plate 9. The two limit frames 10 in each group correspond to their own different placement tables 6, and the two limit frames 10 in each group are located on one side of the adjacent placement table 6. The end of the limit frame 10 facing the placement table 6 is right-angled, and the right-angled ends of the two limit frames 10 in the same group are arranged oppositely to form a matching clamping shape, which can abut the corner of the circuit board placed thereon, thereby limiting the position of the circuit board. Compared with the traditional alignment mark or warning line calibration method, this three-dimensional component setting makes it easier for staff to calibrate the position of the circuit board, thereby reducing the fatigue caused by visual observation and reducing the workload and intensity to a certain extent.

[0021] like Figure 3 As shown, it also includes a guide rod 11 and a clamping plate 12. The top of the mounting seat 7 is provided with a guide rod 11, and a clamping plate 12 is penetrated and slidably provided on the guide rod 11. The clamping plate 12 is in contact with the connecting plate 9 and the sliding rod 8 on the same side, and can respectively limit the two operating states of the connecting plate 9 and the sliding rod 8 to avoid displacement of the positions of the two.

[0022] like Figure 4As shown, it also includes a mounting shaft 13, a rotating frame 14 and a push rod 15. The mounting shafts 13 are arranged at intervals on the mounting frame 4. The rotating frame 14 located inside the mounting frame 4 is rotatably arranged between the mounting shafts 13. Five groups of push rods 15 matching the number of the placement table 6 are arranged at intervals on the rotating frame 14. Slots are opened on the placement table 6. The push rods 15 pass through the corresponding slots as they rotate to lift the circuit board, making it more convenient to take the exposed circuit board, thereby improving the overall operating efficiency.

[0023] like Figure 4 As shown, an arc block 17 is also included. The arc block 17 is provided at the top of the push rod 15 to help lift the circuit board more smoothly without causing damage.

[0024] When the device is to be used, it is placed on a stable surface, and the card plate 12 is then moved upward to slide upward along the guide rod 11 and out of contact with the slide bar 8. The connecting plate 9 is then pushed backward to drive the connected slide bar 8 to move backward on the mounting seat 7 until the connecting plate 9 is in contact with the front side of the mounting frame 4. At this time, the limiting frame 10 on the connecting plate 9 will move to the placement table 6, and the two limiting frames 10 of the same group will be placed on one side of the corresponding placement table 6 respectively. The right-angle end of the limiting frame 10 can be used as a support for the corner placement of the circuit board. After the position of the limiting frame 10 is adjusted, the card plate 12 can be moved down to make it rest on the connecting plate 9, so that the connecting plate 9 can be close to the mounting seat 7 and the position is restricted. Then, the circuit board to be exposed can be placed on the placement table 6, and the corner position of the bottom end of the circuit board is directly resting between the corresponding two limiting frames 10, and then the position of the limiting frame 10 is used as a fulcrum to lay the circuit board flat on the placement table 6. Due to the setting of the through hole 16, the placement of the circuit board is more stable, and the setting of the limiting frame 10 makes the placement of the circuit board more convenient, and also makes The position of the circuit board can be positioned more accurately. After the circuit board is placed, the cover plate 5 can be rotated to be placed on the installation frame 4, and then the exposure component on the cover plate 5 can be started to expose the internal circuit board. Then, this layer is pushed into the interior of the shell 1, and the slider 3 slides with the slide rail 2, so that the installation frame 4 components on this side move backward, and then the components of the other layer are pushed out. Repeat the above operation to expose the corresponding circuit board. After a period of time, the previous layer is pushed out, and then the cover plate 5 is opened, and then the rotating frame 14 is pushed down to rotate around the installation axis 13, and then the push rod 15 is pushed upward to pass through the slot of the placement table 6 to lift the exposed circuit board, and then the staff can take out the circuit board.

[0025] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An exposure device for fine circuit boards, characterized in that: The invention comprises a shell (1), wherein both inner sides of the shell (1) are provided with slide rails (2) at intervals, the two slide rails (2) on the same layer form a group, the upper parts of the two groups of slide rails (2) are assembled in the same manner, a slider (3) is provided on the slide rails (2) for sliding, a mounting frame (4) is provided between the two sliders (3) in the same group, a placement table (6) is provided on the mounting frame (4) at intervals, and a cover plate (5) is also provided on the mounting frame (4) for rotation, an exposure assembly is provided inside the cover plate (5) for exposing a circuit board, a mounting seat (7) is provided on both sides of the mounting frame (4), a slide rod (8) is provided through and slidably on the two mounting seats (7), a connecting plate (9) is provided between the front ends of the two slide rods (8), a plurality of groups of limit frames (10) adapted to the number of the placement tables (6) are provided on the connecting plate (9), and the two limit frames (10) in each group are respectively located on one side adjacent to the placement table (6).

2. The exposure device for fine circuit boards according to claim 1, characterized in that: One end of the limiting frame (10) facing the placement table (6) is in a right-angled shape, and the right-angled ends of the two limiting frames (10) in the same group are arranged opposite to each other to form a matching clamping shape, which is suitable for limiting the position of the circuit board.

3. The exposure device for fine circuit boards according to claim 2, characterized in that: It also includes a guide rod (11) and a card plate (12). The top of the mounting seat (7) is provided with a guide rod (11). The card plate (12) passes through and is slidably provided on the guide rod (11). The card plate (12) is in abutment with the connecting plate (9) and the sliding rod (8) on the same side.

4. The exposure device for fine circuit boards according to claim 3, characterized in that: The invention also includes a mounting shaft (13), a rotating frame (14) and a push rod (15). A plurality of mounting shafts (13) are arranged at intervals on the mounting frame (4). A rotating frame (14) located inside the mounting frame (4) is rotatably arranged between the mounting shafts (13). A plurality of groups of push rods (15) matching the number of the placement platform (6) are arranged at intervals on the rotating frame (14). Slots are provided on the placement platform (6). The push rods (15) pass through the corresponding slots as they rotate to lift the circuit board.

5. The exposure device for fine circuit boards according to claim 4, characterized in that: It also includes an arc-shaped block (17), which is arranged on the top end of the push rod (15).

6. The exposure device for fine circuit boards according to claim 5, characterized in that: The placement platform (6) is provided with arranged through holes (16).

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