Circuit board photosensitive ink coating edge scraping mechanism
By designing a scraping mechanism for the edge of the photosensitive ink coating on circuit boards, and utilizing the rotation of the spring telescopic rod and the scraping component, the problem of low scraping efficiency in the existing technology is solved, and efficient scraping of the edges of circuit boards of different specifications is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI SHANGZHENG CIRCUIT CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are ineffective at removing photosensitive ink from the edges of circuit boards of different sizes, resulting in low scraping efficiency and an inability to meet the needs of circuit boards of different shapes.
A scraping mechanism for the edge of a circuit board photosensitive ink coating was designed. By utilizing the rotation of a spring telescopic rod and a scraping component, along with a limiting shell and a protective base plate, the mechanism can quickly scrape off the edges of the circuit board, adapting to circuit boards of different shapes and specifications.
It improves the efficiency of ink scraping off the edges of circuit boards, meets the scraping needs of circuit boards of different shapes and specifications, and enhances work efficiency.
Smart Images

Figure CN224521293U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of circuit board processing technology, specifically relating to a scraping mechanism for the edge of photosensitive ink coating on circuit boards. Background Technology
[0002] In the manufacturing process of printed circuit boards (PCBs), applying photosensitive ink is one of the core processes. Its role is closely related to the pattern transfer, insulation protection, and performance optimization of the circuit board. However, in order to avoid the excess ink on the top edge area of the circuit board causing unevenness on the top of the circuit board, the ink on the top of the circuit board is scraped off after the ink application process. However, due to the large number of circuit board specifications and the different shapes of circuit boards of different specifications, it is not possible to meet the wiping needs of circuit boards of different specifications and shapes well. Utility Model Content
[0003] This utility model provides a scraping mechanism for the edge of photosensitive ink coating on circuit boards. It can quickly scrape off the ink at the edge of the circuit board by driving the rotation of the spring telescopic rod and the scraping component, which helps to improve the efficiency of scraping the edge of the circuit board and can meet the scraping needs of circuit boards of different shapes and specifications.
[0004] To achieve the above objectives, a circuit board photosensitive ink coating edge scraping mechanism includes a limiting housing, an inner protective base plate, a rotating seat rotatably connected to the top of the protective base plate, a spring telescopic rod slidably disposed on the outer side of the rotating seat, a limiting universal ball rotatably connected to the end of the spring telescopic rod, the limiting universal ball slidably connected to the inner side of the limiting housing, a connecting rod fixedly connected to the bottom of the spring telescopic rod, a mounting shell fixedly connected to the bottom of the connecting rod, and a scraping and wiping plate fixedly connected to the bottom of the mounting shell.
[0005] Preferably, a connecting ring is symmetrically fixedly connected to the outer side of the mounting shell, and a rotating ring is slidably connected to the connecting ring, with one side of the rotating ring located on the outer side of the outer wall of the mounting shell.
[0006] Preferably, a limiting groove is formed inside the limiting shell, and the limiting universal ball is located inside the limiting groove.
[0007] Preferably, the outer side of the rotating seat is provided with a mounting groove, and a mounting base is fixedly connected to the outer side of the mounting groove. A connecting base is fixedly connected to the outer side of the mounting base, and one end of the spring telescopic rod is fixedly connected to the outer side of the connecting base.
[0008] Preferably, the top of the protective base plate is provided with a sliding groove, and a sliding seat is slidably connected inside the sliding groove. A support seat is fixedly connected to the top of the sliding seat, and the support seat is fixedly connected to the top of the spring telescopic rod.
[0009] Preferably, the bottom of the protective base plate is located above the bottom of the limiting outer shell.
[0010] The present invention has the following beneficial effects: with the cooperation of the spring telescopic rod, the limiting shell and the protective base plate, the ink on the edge of the circuit board can be quickly scraped off by driving the rotation of the spring telescopic rod and the scraping component, which helps to improve the work efficiency of scraping the edge of the circuit board, and can meet the scraping needs of circuit boards of different shapes and specifications. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the scraping component in this utility model; In the diagram: 1. Limiting shell; 11. Limiting groove; 2. Protective base plate; 21. Sliding groove; 3. Rotating seat; 31. Mounting groove; 32. Mounting seat; 321. Connecting seat; 4. Spring telescopic rod; 41. Limiting universal ball; 42. Support seat; 421. Sliding seat; 5. Connecting rod; 51. Mounting shell; 511. Connecting ring; 512. Rotating ring; 52. Scraping and wiping plate. Detailed Implementation
[0012] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.
[0013] Example 1: like Figure 1 —3 shows: The circuit board photosensitive ink coating edge scraping mechanism includes a limiting shell 1, a protective base plate 2 is provided on the inner side of the limiting shell 1, and a rotating seat 3 is rotatably connected to the top of the protective base plate 2. A spring telescopic rod 4 is slidably arranged on the outer side of the rotating seat 3, and a limiting universal ball 41 is rotatably connected to the end of the spring telescopic rod 4. The limiting universal ball 41 is slidably connected to the inner side of the limiting shell 1. A connecting rod 5 is fixedly connected to the bottom of the spring telescopic rod 4, and a mounting shell 51 is fixedly connected to the bottom of the connecting rod 5. A scraping and wiping plate 52 is fixedly connected to the bottom of the mounting shell 51.
[0014] In this implementation scheme: the limiting shell 1 is used to limit the circuit board from the outside, while the protective base plate 2 is used to protect the circuit area of the circuit board. The groove formed between the limiting shell 1 and the protective base plate 2 is the scraping area for the edge of the circuit board. When scraping the ink off the edge of the circuit board, the circuit board is first placed inside the limiting shell 1, and the circuit on the circuit board is covered and protected by the protective base plate 2. The rotating seat 3 at the top of the protective base plate 2 is used to drive the spring telescopic rod 4 to rotate. The spring telescopic rod 4 adopts an elastic telescopic structure, allowing its length to be adjusted according to the shape of the inner chamber of the limiting shell 1 when it rotates to the long or short side position of the inner chamber. This ensures that one end of the spring telescopic rod 4 is in contact with the inner wall of the limiting shell 1 during operation. Furthermore, the limiting shell 1 always maintains a shape consistent with the outer contour of the circuit board during use, while the protective base plate 2 maintains a consistent shape with the limiting shell 1. The spacing between the two is always consistent with the edge width of the circuit board. The spring telescopic rod 4 is used to provide a carrier for connecting the connecting rod 5. With the cooperation of the mounting shell 51 and the scraping wiping plate 52, the connecting rod 5 forms a scraping assembly for scraping the ink on the edge of the circuit board. The mounting shell 51 is used to provide a carrier for connecting the scraping wiping plate 52, and the scraping wiping plate 52 is used to scrape the circuit board. The connecting rod 5 is used to provide a carrier for connecting the mounting shell 51 and the spring telescopic rod 4. At this time, with the cooperation of the spring telescopic rod 4, the limiting shell 1, and the protective base plate 2, the scraping assembly can quickly scrape the ink on the edge of the circuit board by driving the spring telescopic rod 4 and the scraping assembly to rotate. This helps to improve the efficiency of scraping the edge of the circuit board and can meet the scraping needs of circuit boards of different shapes and specifications. In addition, a drive motor is installed on the top of the rotating seat 3. The drive motor is connected to the external mounting surface through the connector, and the output end of the drive motor is fixedly connected to the rotating seat 3.
[0015] The mounting shell 51 is symmetrically fixedly connected to the outer side of the mounting shell 51, and the connecting ring 511 is slidably connected to the rotating ring 512. One side of the rotating ring 512 is located on the outer side of the outer wall of the mounting shell 51. The connecting ring 511 is used to provide a carrier for connecting the rotating ring 512, and the rotating ring 512 reduces the friction between the outer edge of the mounting shell 51 and the inner wall of the limiting shell 1 and the outer wall of the protective base plate 2 by rotating.
[0016] The limiting housing 1 has a limiting groove 11 inside, and the limiting universal ball 41 is located inside the limiting groove 11; the limiting groove 11 is used to provide space for the installation of the limiting universal ball 41.
[0017] The rotating seat 3 has an installation groove 31 on its outer side, and an installation seat 32 is fixedly connected to the outer side of the installation groove 31. A connecting seat 321 is fixedly connected to the outer side of the installation seat 32, and one end of the spring telescopic rod 4 is fixedly connected to the outer side of the connecting seat 321. The installation groove 31 is used to provide space for the installation of the installation seat 32.
[0018] The protective base plate 2 has a sliding groove 21 on its top, and a sliding seat 421 is slidably connected inside the sliding groove 21. A support seat 42 is fixedly connected to the top of the sliding seat 421, and the support seat 42 is fixedly connected to the top of the spring telescopic rod 4. The sliding groove 21 is used to provide a carrier for the sliding seat 421 to connect, and the support seat 42 forms a support member on the sliding seat 421 to support the spring telescopic rod 4, which plays a role in improving the stability of the spring telescopic rod 4.
[0019] The bottom of the protective base plate 2 is located above the bottom of the limiting shell 1; it is used to provide space for the circuit board to be placed under high temperature.
[0020] The working principle of this technical solution is as follows: During the production and processing of the circuit board, when it is necessary to scrape off the ink from the edge of the circuit board, the circuit board is placed inside the limiting shell 1, and the protective base plate 2 is placed on top of the circuit board. Then, the drive motor on the top of the rotating seat 3 is turned on. At this time, the rotating seat 3 rotates under the drive motor, and drives the spring telescopic rod 4 to rotate synchronously. At this time, the scraping component at the bottom of the spring telescopic rod 4 scrapes off the edge of the circuit board during the rotation.
[0021] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the invention; these examples are merely for the purpose of helping to understand the method and core ideas of the invention. The above descriptions are only preferred embodiments of the invention. It should be pointed out that, due to the limitations of written expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or variations can be made without departing from the principles of the invention, and the above technical features can be combined in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this invention.
Claims
1. A mechanism for removing the edge of a circuit board photosensitive ink coating, comprising a limiting shell (1), characterized in that: The inner side of the limiting shell (1) is provided with a protective base plate (2), and the top of the protective base plate (2) is rotatably connected to a rotating seat (3). A spring telescopic rod (4) is slidably provided on the outer side of the rotating seat (3), and the end of the spring telescopic rod (4) is rotatably connected to a limiting universal ball (41). The limiting universal ball (41) is slidably connected to the inner side of the limiting shell (1). A connecting rod (5) is fixedly connected to the bottom of the spring telescopic rod (4), and a mounting shell (51) is fixedly connected to the bottom of the connecting rod (5). A scraping and wiping plate (52) is fixedly connected to the bottom of the mounting shell (51).
2. The line board photosensitive ink coating edge removing mechanism apparatus according to claim 1, characterized by: A connecting ring (511) is symmetrically fixedly connected to the outer side of the mounting shell (51), and a rotating ring (512) is slidably connected to the connecting ring (511). One side of the rotating ring (512) is located on the outer side of the outer wall of the mounting shell (51).
3. The circuit board photosensitive ink coating edge removing mechanism apparatus according to claim 1, characterized by: The limiting shell (1) has a limiting groove (11) inside, and the limiting universal ball (41) is located inside the limiting groove (11).
4. The circuit board photosensitive ink coating edge removing mechanism apparatus according to claim 1, characterized by: The rotating seat (3) has an installation groove (31) on its outer side, and an installation seat (32) is fixedly connected to the outer side of the installation groove (31). A connecting seat (321) is fixedly connected to the outer side of the installation seat (32), and one end of the spring telescopic rod (4) is fixedly connected to the outer side of the connecting seat (321).
5. The circuit board photosensitive ink coating edge removing mechanism apparatus according to claim 1, characterized by: The top of the protective base plate (2) is provided with a sliding groove (21), and a sliding seat (421) is slidably connected inside the sliding groove (21). A support seat (42) is fixedly connected to the top of the sliding seat (421), and the support seat (42) is fixedly connected to the top of the spring telescopic rod (4).
6. The circuit board photosensitive ink coating edge removing mechanism apparatus according to claim 1, characterized by: The bottom position of the protective base plate (2) is located above the bottom position of the limiting shell (1).