Aperture adjusting structure and exposure machine thereof
By designing the aperture adjustment structure and clamping components, the problems of inconvenient aperture adjustment and flexible circuit board position adjustment in the exposure machine were solved. This enabled precise control of the aperture size and stable clamping of the flexible circuit board, improving exposure accuracy and equipment versatility, and increasing product yield.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU LANTIAN ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-03-12
- Publication Date
- 2026-05-08
AI Technical Summary
Existing exposure machines suffer from inconvenient aperture adjustment and difficulty in guaranteeing accuracy. They also struggle to flexibly adjust the position of flexible circuit boards and clamp circuit boards of different sizes, affecting the clarity and accuracy of the circuit boards and reducing product yield.
An aperture adjustment structure was designed, including an adjustment component and a clamping component. The aperture size can be precisely adjusted through the cooperation of a rotating disk, a limiting groove, and a limiting shaft. The moving component can adjust and clamp the position of the flexible circuit board through the cooperation of a lead screw and a knob. The clamping component can stably clamp circuit boards of different sizes through the cooperation of a rotating disk and a limiting shaft.
It achieves precise control of aperture size, flexible adjustment of flexible circuit board position and clamping stability, improves exposure accuracy and equipment versatility, and increases product yield.
Smart Images
Figure CN224216990U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of exposure machines, and in particular to an aperture adjustment structure and an exposure machine thereof. Background Technology
[0002] With the rapid development of social technology, electronic devices are increasingly moving towards miniaturization, thinning, and high performance. Flexible printed circuit boards (FPCs), as an indispensable key component in electronic devices, have been widely used in many fields such as smartphones, tablets, and wearable devices due to their significant advantages such as bendability, foldability, small size, and light weight. Exposure machines play a crucial role in the manufacturing process of flexible printed circuit boards. They use photolithography technology to accurately transfer the designed circuit patterns onto the substrate of the flexible printed circuit board, and are the core equipment to ensure the accuracy and performance of the flexible printed circuit board circuits.
[0003] However, when using an exposure machine to expose flexible circuit boards, different flexible circuit board products have different design specifications and circuit accuracy requirements. Therefore, it is often necessary to flexibly adjust the aperture size of the exposure machine according to the specific situation. The traditional aperture adjustment method of the exposure machine has many inconveniences, such as cumbersome adjustment process and difficulty in guaranteeing accuracy. If the aperture is not adjusted accurately, it may lead to overexposure or underexposure, which will affect the clarity and accuracy of the circuit pattern on the flexible circuit board, reduce the yield of the product, and increase the production cost. Utility Model Content
[0004] In view of this, the present invention provides an aperture adjustment structure and an exposure machine thereof. The main technical problem to be solved is: to solve the problems of inconvenient aperture adjustment and difficulty in ensuring accuracy in existing exposure machines, as well as the difficulty in flexibly adjusting the position of flexible circuit boards and effectively clamping flexible circuit boards of different sizes when performing exposure operations on flexible circuit boards.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an aperture adjustment structure, comprising an adjustment component, the adjustment component including a mounting cover, a first fixed plate, a first rotating plate, a light-blocking block, a first limiting groove, a first inclined groove, and a first limiting shaft. The first fixed plate is fixedly installed inside the mounting cover, the first rotating plate is movably installed on the top of the first fixed plate, the light-blocking block is located between the first fixed plate and the first rotating plate, and there are multiple light-blocking blocks arranged in a ring. The first limiting groove is opened inside the first fixed plate, and there are multiple first fixed plates arranged in a ring. The first inclined groove is opened inside the first rotating plate, and there are multiple first rotating plates arranged in a ring. The first limiting shaft is fixedly connected to the outer wall of the light-blocking block, the bottom of the first limiting shaft is slidably installed inside the first limiting groove, and the top of the first limiting shaft is slidably installed on the top of the first inclined groove.
[0006] By adopting the above technical solution, the rotation of the first rotating disk and the guiding effect of the first limiting groove and the first inclined groove on the first limiting shaft enable multiple light-blocking blocks to move towards or away from each other, thereby achieving the adjustment of the aperture size.
[0007] As a further description of the above technical solution: a first knob is movably installed inside the adjustment component, a first gear is fixedly connected to the bottom of the first knob, and a toothed groove is fixedly connected to the outer wall of the first rotating disk. The toothed grooves are arranged in a ring, and the gear and the toothed grooves mesh with each other.
[0008] By adopting the above technical solution, rotating the first knob drives the first rotating disk to rotate through the meshing of the first gear and the tooth groove, providing a convenient operation method for aperture adjustment.
[0009] An exposure machine includes an exposure machine body, an LED light fixedly installed inside the exposure machine body, an adjustment component fixedly installed at the bottom of the LED light, a moving component installed on the outer wall of the exposure machine body, a clamping component installed on the top of the moving component, and the moving component and the clamping component located at the bottom of the adjustment component.
[0010] By adopting the above technical solutions, functions such as aperture adjustment, flexible circuit board position movement and clamping can be realized, improving the flexibility and accuracy of exposure operations.
[0011] As a further description of the above technical solution: the moving component includes a mounting box, a first moving box, a first lead screw, a second moving box, a first moving block, a second lead screw, and a second moving block. The mounting box is fixedly connected to the outer wall of the exposure machine body. The first moving box is fixedly installed inside the mounting box. The first lead screw is movably installed inside the first moving box. The second moving box is movably installed on the top of the first moving box. The first moving block is fixedly connected to the bottom of the second moving box. The second moving box is located inside the first moving box. A screw hole corresponding to the first lead screw is opened inside the second moving box. The second lead screw is movably installed inside the second moving box. The second moving block is slidably installed inside the second moving box. A screw hole corresponding to the second lead screw is opened inside the second moving block.
[0012] By adopting the above technical solution, rotating the first lead screw can move the second moving box on the first moving box, and rotating the second lead screw can move the second moving block inside the second moving box, thereby realizing the position adjustment of the clamping assembly in the front-back, left-right and right directions.
[0013] As a further description of the above technical solution: a second knob is fixedly connected to one end of both the first lead screw and the second lead screw.
[0014] By adopting the above technical solution, the first and second lead screws can be driven to rotate by rotating the second knob, which facilitates the operation of the moving components by the operator.
[0015] As a further description of the above technical solution: the mounting box has a sliding groove inside, and the second movable box is slidably installed inside the sliding groove.
[0016] By adopting the above technical solution, the slide provides guidance and limit for the movement of the second moving box, ensuring the stability and accuracy of the movement of the second moving box.
[0017] As a further description of the above technical solution: the clamping assembly includes a second fixed disk, a second rotating disk, a second inclined groove, a second limiting groove, and a second limiting shaft. The second fixed disk is fixedly connected to the top of the second moving block. The second rotating disk is movably mounted on the top of the second fixed disk. The second inclined groove is formed inside the second fixed disk, and there are multiple second inclined grooves arranged in a ring. The second limiting groove is formed inside the second rotating disk, and there are multiple second limiting grooves arranged in a ring. The second limiting shaft is movably mounted inside the second inclined groove and the second limiting groove.
[0018] By adopting the above technical solution, rotating the second rotating disk and using the guiding effect of the second inclined groove and the second limiting groove on the second limiting shaft, multiple second limiting shafts can move relative to each other, thereby adjusting the clamping range.
[0019] As a further description of the above technical solution: the clamping assembly also includes a lower pressure plate, an upper pressure plate, a support shaft, a stop block, a spring, and a pull rod. The lower pressure plate is fixedly connected to the top of the second limiting shaft. The upper pressure plate is movably installed on the top of the upper pressure plate. The support shaft is fixedly connected to the top of the lower pressure plate. There are two support shafts. The stop block is fixedly connected to the top of the support shaft. The spring is sleeved on the outer wall of the support shaft and is located between the upper pressure plate and the stop block. The pull rod is fixedly connected to the top of the upper pressure plate.
[0020] By adopting the above technical solution, pulling the lever can move the upper pressure plate upward, and releasing the lever will cause the spring force to move the upper pressure plate downward, thereby clamping the flexible circuit board.
[0021] By employing the above technical solution, the aperture adjustment structure and its exposure machine of this utility model have at least the following beneficial effects:
[0022] 1. Compared with the prior art, the aperture adjustment structure and its exposure machine, by setting an adjustment component, when in use, turning the first knob drives the first rotating disk to rotate through the meshing of the first gear and the tooth groove. When the first rotating disk rotates, the first limiting shaft, guided by the first limiting groove and the first inclined groove, causes multiple light-blocking blocks to move towards or away from each other, thereby realizing the adjustment of the aperture size. It can accurately control the aperture size and improve the exposure accuracy.
[0023] 2. Compared with the prior art, this aperture adjustment structure and its exposure machine, by setting a moving component, allows the second moving box to move on the first moving box when the first lead screw is rotated, and the second moving block to move inside the second moving box when the second lead screw is rotated, thereby realizing the position adjustment of the clamping component in the front-back and left-right directions. The advantage is that the exposure position of the flexible circuit board can be flexibly adjusted, improving the flexibility of exposure.
[0024] 3. Compared with the prior art, this aperture adjustment structure and its exposure machine, by setting up a clamping component, can effectively clamp flexible circuit boards of different sizes by rotating the second rotating disk during use, causing multiple second limit axes to move relative to each other to adjust the clamping range, pulling the pull rod to move the upper pressure plate up, placing the flexible circuit board in, releasing the pull rod, and the spring force causing the upper pressure plate to move down to clamp, thereby improving the versatility of the equipment. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the aperture adjustment structure and its exposure machine proposed in this utility model from a first-view perspective.
[0026] Figure 2 This is a schematic diagram of the aperture adjustment structure and the second-view structure of the exposure machine proposed in this utility model;
[0027] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;
[0028] Figure 4 This is an exploded view of the aperture adjustment structure and the moving component and clamping component in the exposure machine proposed in this utility model.
[0029] Figure 5 for Figure 4 Schematic diagram of the method structure at point B;
[0030] Figure 6 This is an enlarged schematic diagram of an aperture adjustment structure and its adjustment mechanism in an exposure machine proposed in this utility model;
[0031] Figure 7 This is an exploded view of the aperture adjustment structure and the adjustment mechanism in the exposure machine proposed in this utility model.
[0032] Legend:
[0033] 1. Adjustment assembly; 101. Mounting cover; 102. First fixed plate; 103. First rotating plate; 104. Light blocking block; 105. First limiting groove; 106. First inclined groove; 107. First limiting shaft; 108. First knob; 109. Gear; 110. Gear groove; 2. Exposure machine body; 3. LED light; 4. Moving assembly; 401. Mounting box; 402. First moving box; 403. First lead screw; 404. Second... 405. Moving box; 406. First moving block; 407. Second lead screw; 408. Second moving block; 409. Second knob; 400. Slide groove; 5. Clamping assembly; 501. Second fixed plate; 502. Second rotating plate; 503. Second inclined groove; 504. Second limiting groove; 505. Second limiting shaft; 506. Lower pressure plate; 507. Upper pressure plate; 508. Support shaft; 509. Stop block; 510. Spring; 511. Pull rod. Detailed Implementation
[0034] Reference Figure 1-7 This utility model provides an aperture adjustment structure, including an adjustment component 1. The adjustment component 1 includes a mounting cover 101, a first fixed plate 102, a first rotating plate 103, a light-blocking block 104, a first limiting groove 105, a first inclined groove 106, and a first limiting shaft 107. The first fixed plate 102 is fixedly installed inside the mounting cover 101, and the first rotating plate 103 is movably installed on top of the first fixed plate 102. The light-blocking block 104 is located between the first fixed plate 102 and the first rotating plate 103. Multiple light-blocking blocks 104 are arranged in a ring. The aperture size is changed by their relative movement towards or away from each other. The first limiting groove 105 is formed in the first fixed plate 101. Inside the fixed disk 102, there are multiple fixed disks 102 arranged in a ring. The first limiting groove 105 provides guidance for the sliding of the first limiting shaft 107, ensuring the stability of the movement of the light blocking block 104. The first inclined groove 106 is opened inside the first rotating disk 103. The first rotating disk 103 has multiple inclined grooves arranged in a ring. The first inclined groove 106 cooperates with the first limiting groove 105 to convert the rotation of the first rotating disk 103 into the linear movement of the light blocking block 104. The first limiting shaft 107 is fixedly connected to the outer wall of the light blocking block 104. The bottom of the first limiting shaft 107 is slidably installed inside the first limiting groove 105, and the top of the first limiting shaft 107 is slidably installed on the top of the first inclined groove 106.
[0035] The adjustment assembly 1 has a first knob 108 installed inside. The bottom of the first knob 108 is fixedly connected to a first gear 109. The outer wall of the first rotating disk 103 is fixedly connected to a toothed groove 110. Multiple toothed grooves 110 are arranged in a ring. The gear 109 meshes with the toothed groove 110. When the first knob 108 is rotated, the rotational force is transmitted to the first rotating disk 103 through the meshing of the first gear 109 and the toothed groove 110, thereby driving the first rotating disk 103.
[0036] An exposure machine includes an exposure machine body 2. An LED lamp 3 is fixedly installed inside the exposure machine body 2. The LED lamp 3 serves as an exposure light source to provide illumination for the exposure of flexible circuit boards. An adjustment component 1 is fixedly installed at the bottom of the LED lamp 3. The adjustment component 1 is installed at the bottom of the LED lamp 3 and can adjust the aperture of the light emitted by the LED lamp 3. A moving component 4 is installed on the outer wall of the exposure machine body 2. The moving component 4 is used to adjust the position of the clamping component 5 so that the flexible circuit board can be in a suitable exposure position. The clamping component 5 is installed on the top of the moving component 4. The moving component 4 and the clamping component 5 are located at the bottom of the adjustment component 1. The clamping component 5 is used to clamp the flexible circuit board to ensure its stability during the exposure process.
[0037] The movable component 4 includes a mounting box 401, a first movable box 402, a first lead screw 403, a second movable box 404, a first movable block 405, a second lead screw 406, and a second movable block 407. The mounting box 401 is fixedly connected to the outer wall of the exposure machine body 2. The first movable box 402 is fixedly installed inside the mounting box 401. The first lead screw 403 is movably installed inside the first movable box 402. When the first lead screw 403 rotates, it moves the second movable box 404 through threaded engagement with the first movable block 405. The second movable box 404 is movably installed on top of the first movable box 402. The first moving block 405 is fixedly connected to the bottom of the second moving box 404, which is located inside the first moving box 402. The second moving box 404 has a screw hole corresponding to the first lead screw 403 inside. The first moving block 405 cooperates with the first lead screw 403 to convert the rotation of the first lead screw 403 into the linear movement of the second moving box 404. The second lead screw 406 is movably installed inside the second moving box 404, and the second moving block 407 is slidably installed inside the second moving box 404. The second moving block 407 has a screw hole corresponding to the second lead screw 406 inside.
[0038] A second knob 408 is fixedly connected to one end of both the first lead screw 403 and the second lead screw 406. By rotating the second knob 408, the operator can easily drive the first lead screw 403 and the second lead screw 406 to rotate.
[0039] The mounting box 401 has a sliding groove 409 inside, and the second movable box 404 is slidably installed inside the sliding groove 409. The sliding groove 409 provides guidance and limit for the movement of the second movable box 404, ensuring its smoothness and accuracy.
[0040] The clamping assembly 5 includes a second fixed disk 501, a second rotating disk 502, a second inclined groove 503, a second limiting groove 504, and a second limiting shaft 505. The second fixed disk 501 is fixedly connected to the top of the second moving block 407. The second rotating disk 502 is movably mounted on the top of the second fixed disk 501. The second inclined groove 503 is formed inside the second fixed disk 501. Multiple second inclined grooves 503 are arranged in a ring. The second inclined groove 503 provides guidance for the sliding of the second limiting shaft 505. The second limiting groove 504 is formed inside the second rotating disk 502. Multiple second limiting grooves 504 are arranged in a ring. The second limiting groove 504 cooperates with the second inclined groove 503 to convert the rotation of the second rotating disk 502 into the linear movement of the second limiting shaft 505. The second limiting shaft 505 is movably mounted inside the second inclined groove 503 and the second limiting groove 504.
[0041] The clamping assembly 5 also includes a lower pressure plate 506, an upper pressure plate 507, a support shaft 508, a stop block 509, a spring 510, and a pull rod 511. The lower pressure plate 506 is fixedly connected to the top of the second limiting shaft 505. The upper pressure plate 507 is movably mounted on the top of the upper pressure plate 507. The support shaft 508 is fixedly connected to the top of the lower pressure plate 506. There are two support shafts 508. The stop block 509 is fixedly connected to the top of the support shaft 508. The spring 510 is sleeved on the outer wall of the support shaft 508 and is located between the upper pressure plate 507 and the stop block 509. The pull rod 511 is fixedly connected to the top of the upper pressure plate 507. Pulling the pull rod 511 can make the upper pressure plate 507 move upward against the elastic force of the spring 510. After releasing the pull rod 511, the elastic force of the spring 510 makes the upper pressure plate 507 move downward, thereby clamping the flexible circuit board.
[0042] Working principle: When in use, the operator rotates the first knob 108, and the first gear 109 at the bottom of the first knob 108 rotates accordingly. Since the first gear 109 meshes with the tooth groove 110 on the outer wall of the first rotating disk 103, the first rotating disk 103 will rotate on the top of the first fixed disk 102. When the first rotating disk 103 rotates, the first inclined groove 106 inside it will push the first limiting shaft 107 to slide in the first limiting groove 105. Since the first limiting shaft 107 is fixed on the outer wall of the light blocking block 104, multiple light blocking blocks 104 will move towards or away from each other under the drive of the first limiting shaft 107, thereby achieving precise adjustment of the aperture size.
[0043] Next, in the clamping operation of the flexible circuit board, the operator rotates the second rotating disk 502. The second limiting groove 504 inside the second rotating disk 502 rotates accordingly, interacting with the second inclined groove 503 on the second fixed disk 501, pushing the second limiting shaft 505 to move within the second inclined groove 503 and the second limiting groove 504. Since multiple second limiting shafts 505 move in this way, the clamping range is adjusted. Then, the pull rod 511 is pulled, and the upper pressure plate 507 moves upward against the elastic force of the spring 510, placing the flexible circuit board on the lower pressure plate 506. After releasing the pull rod 511, the elastic force of the spring 510 causes the upper pressure plate 507 to move downward, tightly clamping the flexible circuit board.
[0044] Then, the position of the flexible circuit board is adjusted. The operator rotates the second knob 408 connected to the first lead screw 403. The first lead screw 403 rotates. Since the first moving block 405 at the bottom of the second moving box 404 is threadedly engaged with the first lead screw 403, and the second moving box 404 slides in the slide groove 409 of the mounting box 401, the second moving box 404 will move back and forth on the first moving box 402. Then, the second knob 408 connected to the second lead screw 406 is rotated. The second lead screw 406 rotates. Under the action of the second lead screw 406, the second moving block 407 moves left and right in the second moving box 404, thereby realizing the position adjustment of the clamping component 5 in the front-back and left-right directions, so that the flexible circuit board is in a suitable exposure position.
[0045] After completing the preparations, turn on the LED light 3 inside the exposure machine body 2. The light, with the aperture adjusted by the adjustment component 1, shines downward to expose the flexible circuit board.
[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An aperture adjustment structure, comprising an adjustment component (1), characterized in that: The adjustment assembly (1) includes a mounting cover (101), a first fixed plate (102), a first rotating plate (103), a light-blocking block (104), a first limiting groove (105), a first inclined groove (106), and a first limiting shaft (107). The first fixed plate (102) is fixedly installed inside the mounting cover (101), and the first rotating plate (103) is movably installed on the top of the first fixed plate (102). The light-blocking block (104) is located between the first fixed plate (102) and the first rotating plate (103), and the light-blocking block (104) has multiple ring-shaped components. The first limiting groove (105) is opened inside the first fixed disk (102), and the first fixed disk (102) has multiple rings. The first inclined groove (106) is opened inside the first rotating disk (103), and the first rotating disk (103) has multiple rings. The first limiting shaft (107) is fixedly connected to the outer wall of the light blocking block (104). The bottom of the first limiting shaft (107) is slidably installed inside the first limiting groove (105), and the top of the first limiting shaft (107) is slidably installed on the top of the first inclined groove (106).
2. The aperture adjustment structure according to claim 1, characterized in that: The adjustment assembly (1) has a first knob (108) installed inside. The bottom of the first knob (108) is fixedly connected to a first gear (109). The outer wall of the first rotating disk (103) is fixedly connected to a tooth groove (110). There are multiple tooth grooves (110) arranged in a ring. The gear (109) meshes with the tooth groove (110).
3. An exposure machine, comprising the aperture adjustment structure and the exposure machine body (2) as described in claim 2, characterized in that: An LED light (3) is fixedly installed inside the exposure machine body (2). An adjustment component (1) is fixedly installed at the bottom of the LED light (3). A moving component (4) is installed on the outer wall of the exposure machine body (2). A clamping component (5) is installed on the top of the moving component (4). The moving component (4) and the clamping component (5) are located at the bottom of the adjustment component (1).
4. An exposure machine according to claim 3, characterized in that: The moving component (4) includes a mounting box (401), a first moving box (402), a first lead screw (403), a second moving box (404), a first moving block (405), a second lead screw (406), and a second moving block (407). The mounting box (401) is fixedly connected to the outer wall of the exposure machine body (2). The first moving box (402) is fixedly installed inside the mounting box (401). The first lead screw (403) is movably installed inside the first moving box (405). The second moving box (404) is movably installed inside the first moving box (407). 02) is at the top, the first moving block (405) is fixedly connected to the bottom of the second moving box (404), the second moving box (404) is located inside the first moving box (402), the second moving box (404) has a screw hole corresponding to the first lead screw (403) inside, the second lead screw (406) is movably installed inside the second moving box (404), the second moving block (407) is slidably installed inside the second moving box (404), the second moving block (407) has a screw hole corresponding to the second lead screw (406) inside.
5. An exposure machine according to claim 4, characterized in that: A second knob (408) is fixedly connected to one end of both the first lead screw (403) and the second lead screw (406).
6. An exposure machine according to claim 4, characterized in that: The mounting box (401) has a sliding groove (409) inside, and the second movable box (404) is slidably installed inside the sliding groove (409).
7. An exposure machine according to claim 4, characterized in that: The clamping assembly (5) includes a second fixed plate (501), a second rotating plate (502), a second inclined groove (503), a second limiting groove (504), and a second limiting shaft (505). The second fixed plate (501) is fixedly connected to the top of the second moving block (407). The second rotating plate (502) is movably mounted on the top of the second fixed plate (501). The second inclined groove (503) is opened inside the second fixed plate (501). There are multiple second inclined grooves (503) arranged in a ring. The second limiting groove (504) is opened inside the second rotating plate (502). There are multiple second limiting grooves (504) arranged in a ring. The second limiting shaft (505) is movably mounted inside the second inclined groove (503) and the second limiting groove (504).
8. An exposure machine according to claim 7, characterized in that: The clamping assembly (5) further includes a lower pressure plate (506), an upper pressure plate (507), a support shaft (508), a stop (509), a spring (510), and a pull rod (511). The lower pressure plate (506) is fixedly connected to the top of the second limiting shaft (505). The upper pressure plate (507) is movably installed on the top of the upper pressure plate (507). The support shaft (508) is fixedly connected to the top of the lower pressure plate (506). There are two support shafts (508). The stop (509) is fixedly connected to the top of the support shaft (508). The spring (510) is sleeved on the outer wall of the support shaft (508). The spring (510) is located between the upper pressure plate (507) and the stop (509). The pull rod (511) is fixedly connected to the top of the upper pressure plate (507).