Circuit board solder stop frame

Abstract

This utility model discloses a circuit board solder resist frame, including two opposing first mounting frames and a second mounting frame. The first mounting frame and the second mounting frame are connected by two crossbeams, which are parallel to each other and located on both sides. The first mounting frame is equipped with a first limiting plate, which is evenly provided with a plurality of limiting grooves. The limiting grooves are used to abut against the side of the circuit board. An adjusting rod is also provided between the first mounting frame and the second mounting frame. The adjusting rod is provided with a mounting plate, which forms a mounting groove for embedding a second limiting plate. The second limiting plate can move along the length direction of the adjusting rod to approach the first limiting plate and cooperate with the first limiting plate to fix the circuit board for cleaning solder resist ink.

Description

Technical Field

[0001] This utility model relates to the field of circuit board manufacturing equipment technology, and in particular to a circuit board solder resist frame. Background Technology

[0002] Solder resist is a critical step in circuit board manufacturing. It involves applying and curing solder resist ink to the circuit board to protect its non-conductive parts and prevent short circuits during soldering. After solder resist application, excess ink needs to be removed to ensure the cleanliness of the circuit board and facilitate subsequent processing. Traditional cleaning methods often involve manual cleaning or using a stainless steel integrated frame to hold the circuit board in place. Manual cleaning is inefficient and makes it difficult to ensure consistent cleaning and the safety of the circuit board. Stainless steel integrated frames are heavy, inconvenient to clean, have long cleaning cycles, and accumulate a lot of ink in the frame grooves, which can easily cause foreign matter to accumulate on the board surface, affecting quality. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a circuit board solder resist frame that is structurally stable, easy to operate, effectively fixes the circuit board, and facilitates the cleaning of solder resist ink.

[0004] According to a first aspect of the present invention, a circuit board solder resist frame includes two opposing first mounting frames and a second mounting frame. The first mounting frames and the second mounting frames are connected by two crossbeams, which are parallel to each other and disposed on both sides. The first mounting frame is equipped with a first limiting plate, which is uniformly provided with a plurality of limiting grooves. The limiting grooves are used to abut against the side of the circuit board. An adjusting rod is also provided between the first mounting frame and the second mounting frame. The adjusting rod is provided with a mounting plate, which forms a mounting groove for embedding a second limiting plate. The second limiting plate can move along the length direction of the adjusting rod to approach the first limiting plate and cooperate with the first limiting plate to fix the circuit board for cleaning solder resist ink.

[0005] According to some embodiments of the present invention, at least two adjusting rods are provided, and the two adjusting rods are respectively located below the two crossbeams.

[0006] According to some embodiments of the present invention, the adjusting rod includes a sleeve and a telescopic rod, the telescopic rod is slidably connected to the sleeve, and the mounting plate is connected to the telescopic rod or the sleeve.

[0007] According to some embodiments of the present invention, at least four mounting plates are provided, wherein each telescopic rod is connected to two adjacent mounting plates, and the gap between two mounting plates forms the mounting groove.

[0008] According to some embodiments of the present invention, a tension sleeve is provided at one end of the telescopic rod inserted into the sleeve. The tension sleeve is a rubber product used to fill the gap between the inner wall of the sleeve and the telescopic rod, so as to limit the swing of the telescopic rod.

[0009] According to some embodiments of the present invention, a limiting screw is provided on the side of the sleeve. The limiting screw rotates to move toward the inside of the sleeve to abut against the telescopic rod and restrict the sliding of the telescopic rod.

[0010] According to some embodiments of this utility model, the mounting plate is connected to the telescopic rod or the sleeve by welding.

[0011] According to some embodiments of the present invention, both the first limiting plate and the second limiting plate are provided with a plurality of through holes to increase the contact area between the circuit board and the cleaning fluid.

[0012] According to some embodiments of the present invention, the limiting groove is an arc-shaped groove whose width increases from the bottom of the groove towards the opening.

[0013] According to some embodiments of the present invention, both the first mounting frame and the second mounting frame are provided with a lifting handle.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0016] Figure 1 This is a schematic diagram of the circuit board solder mask frame according to an embodiment of the present utility model;

[0017] Figure 2 This is a top view of the circuit board solder mask frame according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the installation of the second limiting plate of the circuit board solder mask frame according to an embodiment of the present invention.

[0019] Reference numerals in the attached drawings: First mounting frame 100; First limiting plate 110; Limiting groove 111; Second mounting frame 200; Crossbeam 300; Adjusting rod 400; Telescopic rod 410; Sleeve 420; Adjusting screw 421; Mounting plate 500; Second limiting plate 510; Lifting handle 600; Through hole 700. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0023] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of these terms in this utility model based on the specific content of the technical solution. In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] Reference Figure 1 , Figure 2and Figure 3 This utility model proposes a circuit board solder mask frame, including two opposing first mounting frames 100 and second mounting frames 200, which constitute the basic structure of the frame. The first mounting frames 100 and 200 are connected by two crossbeams 300, which are parallel to each other and respectively located on both sides of the frame, enhancing the overall stability and support of the frame. A first limiting plate 110 is mounted on the first mounting frame 100, which has a plurality of evenly distributed limiting grooves 111. These limiting grooves 111 are designed to precisely abut the sides of the circuit board, ensuring the circuit board is fixed in position within the frame and preventing displacement during cleaning. Furthermore, an adjusting rod 400 is provided between the first mounting frame 100 and the second mounting frame 200. The adjusting rod 400 allows for adjustment according to different circuit board sizes, improving the frame's versatility. A mounting plate 500 is provided on the adjusting rod 400, and the mounting plate 500 has a mounting groove for embedding the second limiting plate 510. The second limiting plate 510 can move along the length of the adjusting rod 400. By adjusting the position of the second limiting plate 510, it can be brought close to the first limiting plate 110. The two work together to clamp and fix the circuit board, ensuring the stability and safety of the circuit board during the cleaning process.

[0025] Understandably, the overall stability of the frame is enhanced by connecting two opposing mounting frames and two parallel crossbeams 300. The design of the adjusting rod 400 and the movable second limiting plate 510 allows the frame to adapt to circuit boards of different sizes, making operation flexible and convenient. The stable clamping structure ensures the circuit board remains in place during cleaning, improving cleaning consistency and efficiency. Precise limiting and clamping effectively prevent damage to the circuit board during cleaning, ensuring production safety. Both the first limiting plate 110 and the second limiting plate 510 can be disassembled via a pull-out design, facilitating cleaning replacement, shortening the cleaning cycle, and reducing the generation of foreign objects.

[0026] Furthermore, the first limiting plate 110 and the second limiting plate 510 are made of Teflon material. Teflon has excellent acid and alkali resistance, does not deform after immersion and cleaning, has smooth surface finish, and is less hard than stainless steel, making it less prone to chipping and has a long service life. The Teflon frame also has good chemical resistance, does not absorb water, and does not react with most chemicals. Teflon material has good heat resistance, with a continuous operating temperature of 110-120 degrees Celsius. Teflon also has good electrical insulation and environmental protection properties; it is a non-toxic and odorless material. Even in high-temperature and highly corrosive rinsing tanks, it will not be affected.

[0027] Reference Figure 2At least two adjusting rods 400 are provided, and these two adjusting rods 400 are respectively located below the two crossbeams 300. This design allows the circuit board to receive more balanced support and adjustment in the vertical direction, further enhancing the stability and adaptability of the frame. In practical applications, the height of the two adjusting rods 400 can be adjusted according to the size and weight of the circuit board to keep the circuit board level, facilitating the cleaning of solder resist ink.

[0028] Furthermore, the adjusting rod 400 consists of a sleeve 420 and a telescopic rod 410. The telescopic rod 410 is slidably connected within the sleeve 420. This design allows for adjustment of the length of the telescopic rod 410 extending beyond the sleeve 420 as needed, thereby changing the position of the second limiting plate 510. The mounting plate 500 is securely connected to the telescopic rod 410 or the sleeve 420, thus moving with the extension and retraction of the telescopic rod 410.

[0029] It should be noted that each telescopic rod 410 is connected to two adjacent mounting plates 500. The gap between these two mounting plates 500 forms a mounting groove for embedding the second limiting plate 510. This design not only improves the support of the frame but also allows the second limiting plate 510 to be more stably fixed in the mounting groove, effectively preventing the circuit board from shaking during the cleaning process.

[0030] In some embodiments, a tensioning sleeve is fitted onto one end of the telescopic rod 410 that is inserted into the sleeve 420. The tensioning sleeve is made of rubber and has good elasticity and wear resistance. It can tightly fill the gap between the inner wall of the sleeve 420 and the telescopic rod 410, effectively limiting the swing of the telescopic rod 410 and improving the stability and accuracy of the adjusting rod 400.

[0031] Reference Figure 1 and Figure 2 A limiting screw is provided on the side of the sleeve 420. When it is necessary to fix the position of the telescopic rod 410, simply rotate the limiting screw so that it moves toward the inside of the sleeve 420 and abuts against the telescopic rod 410. This design is simple in structure and easy to operate, and can ensure that the telescopic rod 410 maintains a constant position during the cleaning process, preventing slippage due to accidental collisions or vibrations.

[0032] Optionally, the mounting plate 500 is connected to the telescopic rod 410 or the sleeve 420 by welding. Welded connections are characterized by high strength and stable and reliable connection, which can ensure the firmness of the mounting plate 500 on the telescopic rod 410 or the sleeve 420 and prevent it from falling off due to excessive force during cleaning.

[0033] Reference Figure 1Both the first limiting plate 110 and the second limiting plate 510 are provided with a number of through holes 700. The design of these through holes 700 can increase the contact area between the circuit board and the cleaning fluid, thereby improving the cleaning efficiency.

[0034] The limiting groove 111 is an arc-shaped groove whose width increases from the bottom towards the opening. This design allows the limiting groove 111 to better accommodate circuit boards of different thicknesses, ensuring that the circuit board is stably supported within the limiting groove 111. At the same time, the arc-shaped groove design also reduces friction between the circuit board and the limiting groove 111, extending the service life of the frame.

[0035] Reference Figure 2 Both the first mounting frame 100 and the second mounting frame 200 are equipped with lifting handles 600. The design of the lifting handles 600 makes it easier and less strenuous for operators to handle or move the frames. At the same time, the lifting handles 600 also serve as identification and decoration for the frames, enhancing their overall aesthetics.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A circuit board solder mask frame, characterized in that, The device includes two opposing first mounting frames and a second mounting frame, connected by two crossbeams parallel to each other on both sides. The first mounting frame is fitted with a first limiting plate, which has multiple evenly spaced limiting grooves for abutting against the side of the circuit board. An adjusting rod is also provided between the first and second mounting frames, with a mounting plate on the adjusting rod. The mounting plate has a mounting groove for embedding a second limiting plate. The second limiting plate can move along the length of the adjusting rod to approach the first limiting plate and cooperate with it to fix the circuit board for cleaning solder resist ink.

2. The circuit board solder mask frame according to claim 1, characterized in that, At least two adjusting rods are provided, with the two adjusting rods located below the two crossbeams respectively.

3. The circuit board solder mask frame according to claim 2, characterized in that, The adjusting rod includes a sleeve and a telescopic rod, the telescopic rod being slidably connected to the sleeve, and the mounting plate being connected to the telescopic rod or the sleeve.

4. The circuit board solder mask frame according to claim 3, characterized in that, At least four mounting plates are provided, wherein each telescopic rod is connected to two adjacent mounting plates, and the gap between two mounting plates forms the mounting groove.

5. The circuit board solder mask frame according to claim 4, characterized in that, The telescopic rod is fitted with a tension sleeve at one end inside the sleeve. The tension sleeve is a rubber product used to fill the gap between the inner wall of the sleeve and the telescopic rod, so as to limit the swing of the telescopic rod.

6. The circuit board solder mask frame according to claim 5, characterized in that, The sleeve is provided with a limiting screw on its side. The limiting screw rotates to move toward the inside of the sleeve to abut against the telescopic rod and restrict the telescopic rod from sliding.

7. The circuit board solder mask frame according to claim 3, characterized in that, The mounting plate is connected to the telescopic rod or the sleeve by welding.

8. The circuit board solder mask frame according to claim 1, characterized in that, Both the first limiting plate and the second limiting plate are provided with several through holes to increase the contact area between the circuit board and the cleaning fluid.

9. The circuit board solder mask frame according to claim 1, characterized in that, The limiting groove is an arc-shaped groove whose width increases from the bottom of the groove towards the opening.

10. The circuit board solder mask frame according to claim 1, characterized in that, Both the first mounting frame and the second mounting frame are equipped with a lifting handle.

Images