Circuit board solder mask hole plugging device

Abstract

The invention relates to the technical field of integrated circuit manufacturing, in particular to a solder mask hole plugging device for a circuit board. Comprising a control table, the control table is in sliding connection with a lifting sliding rail, the lifting sliding rail is detachably connected with a screen printing plate frame, the lifting sliding rail is in sliding connection with an electric sliding block, the electric sliding block on the lifting sliding rail is fixedly connected with a sliding table, the sliding table is provided with a first driving piece, and the sliding table is in sliding connection with a connecting frame; the connecting frame is fixedly connected with the telescopic end of the first driving part, the connecting frame is provided with two baffles which are symmetrically distributed, the bottom of the connecting frame is fixedly connected with an ink scraping rubber strip, and the connecting frame is provided with a driving assembly. The two baffles drive the ink scraping rubber strip at the bottom to deflect, the ink scraping rubber strip blocks the leakage track of ink, the ink is gathered on the pushing side of the ink scraping rubber strip, it is ensured that the ink is fully utilized, and the utilization degree of the ink is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated circuit manufacturing, and in particular to a circuit board solder mask ink hole plugging device. Background Art

[0002] As a core component of electronic devices, printed circuit boards (PCBs) are primarily used to carry and connect various electronic components, ensuring stable transmission of electrical signals and ensuring functional operation. Their structures are typically composed of multiple substrates and multiple layers of circuitry. Drilling is an essential step in PCB manufacturing, but the exposed copper foil on the hole walls can easily cause short circuits, oxidation, or contamination, impacting the reliability and lifespan of the circuits. Therefore, the via plugging process is widely used in modern PCB manufacturing. This process fills the drilled holes with a specialized ink, covering the copper surface of the hole walls. This not only improves insulation performance and enhances the mechanical strength of the structure, but also effectively prevents oxidation of the copper layer and provides a smooth base surface for subsequent surface treatment or metallization processes.

[0003] Currently, the mainstream plugging method is screen printing, which uses a scraper in the screen printing equipment to push ink, allowing it to be accurately filled into the holes of the circuit board through the screen under pressure. However, existing equipment generally uses a straight scraper. Because the amount of ink pushed by the scraper is far greater than the amount required for a single plugging of the circuit board, during the scraping process, the ink accumulated on the pushing side of the scraper is easily affected by the thrust and easily overflows from both sides of the scraper, resulting in ink leakage and ink waste. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the above background technology, the present invention provides a circuit board solder mask ink hole plugging device.

[0005] Technical solution: A circuit board solder mask ink plugging device includes a control console, a fixed table fixedly connected to the control console, a lifting slide rail slidably connected to the control console, the lifting slide rail is detachably connected to the screen printing frame, the fixed table and the screen printing frame are aligned up and down, the lifting slide rail is slidably connected to an electric slider, the electric slider on the lifting slide rail is fixedly connected to the sliding table, the sliding table is equipped with a first driving member, the sliding table is slidably connected to a connecting frame, the connecting frame is fixedly connected to the telescopic end of the first driving member, the connecting frame is provided with two symmetrically distributed baffles, the bottom of the connecting frame is fixedly connected to a scraper strip, the two baffles are respectively used to control the deflection of the scraper strip on both sides, and the connecting frame is provided with a driving component for driving the two baffles to deflect together.

[0006] In addition, it is particularly preferred that the driving assembly includes a second driving member, the second driving member is fixedly connected to the connecting frame, the telescopic end of the second driving member is fixedly connected to a connecting rod, the connection between the connecting rod and the telescopic end of the second driving member is located in the middle, the baffle is fixedly connected to a connecting block, the central axis of the connecting block coincides with the rotation axis of the adjacent baffle, the connecting rod is fixedly connected to two clamping blocks, the connecting block is provided with a groove, and the clamping block slides in the adjacent grooves.

[0007] In addition, it is particularly preferred that the connecting frame is slidably connected to two symmetrically distributed adjustment blocks, the two adjustment blocks and the two baffles are slidably connected to the ink scraping strip, and the adjustment blocks are rotationally connected to the adjacent baffles.

[0008] In addition, it is particularly preferred that the connecting rod is a bidirectional telescopic rod, the fixed part of the connecting rod is fixedly connected to the telescopic end of the second driving member, the two telescopic ends of the connecting rod are respectively slidably connected to the two adjustment blocks, and the two telescopic ends of the connecting rod are respectively fixedly connected to the two clamping blocks.

[0009] In addition, it is particularly preferred that the adjusting block is threadedly connected with a first bolt, and the first bolt is used to squeeze the connecting frame to lock the adjacent adjusting blocks.

[0010] In addition, it is particularly preferred that the connecting frame is slidably connected to two groups of symmetrically distributed support blocks, each group of support blocks comprises a plurality of support blocks in a linear array, and the support blocks in the same group are located between the connecting frame and the corresponding adjustment block.

[0011] In addition, it is particularly preferred that the connecting frame, the adjusting block and the corresponding group of support blocks are jointly provided with a telescopic frame for enabling a plurality of the support blocks to evenly support the ink scraping rubber strip.

[0012] In addition, it is particularly preferred that symmetrically distributed first elastic cloths are fixedly connected between the connecting frame and the adjacent support block, between the adjustment block and the adjacent support block, and between two adjacent support blocks, and the first elastic cloth is sealed to the ink scraping rubber strip.

[0013] In addition, it is particularly preferred that a material spreading plate is fixedly connected to one side of the screen printing plate frame, the material spreading plate is slidably connected to two symmetrically distributed material blocking plates, and a second elastic cloth is fixedly connected between the two material blocking plates.

[0014] In addition, it is particularly preferred that the material baffle plate is threadedly connected with a second bolt, and the second bolt is used to squeeze the material shaving plate to lock the adjacent material baffle plate.

[0015] Compared with the prior art, the technical effects achieved by the present invention are: 1. The present invention drives the bottom scraper strip to deflect through two baffles, and the scraper strip blocks the leakage track of ink, so that the ink is gathered on the pushing side of the scraper strip, ensuring full utilization of the ink and improving the utilization rate of the ink.

[0016] 2. By adjusting the distance between the two adjustment blocks, the distance between the two baffles is made the same as the width of the circuit board, so as to adapt to the plugging work of different types of circuit boards and ensure that the ink will not enter the invalid position on the screen printing frame when plugging the holes of different circuit boards, thereby further improving the utilization of the ink.

[0017] 3. By changing the position of the two adjustment blocks, the distance between the two adjacent support blocks in the same group is made the same under the action of the telescopic frame, that is, evenly distributed on the scraper strip, so that several support blocks evenly support the scraper strip, reducing the probability of deformation of the scraper strip when the ink plugging hole is pushed by force.

[0018] 4. After completing the plugging work on a single circuit board, the ink scraping strip is used to push the ink to fit the second elastic cloth. The ink is evenly distributed under the extrusion force of the ink scraping strip and the second elastic cloth, ensuring that the ink is evenly distributed when pushed by the ink scraping strip, thereby improving the plugging quality of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 Schematic diagram of the three-dimensional structure of the sliding platform and the first driving member of the present invention; Figure 3 Schematic diagram of the three-dimensional structure of the baffle and the ink scraping rubber strip of the present invention; Figure 4 For the present invention Figure 3 A magnified view of point A in the figure; Figure 5 Schematic diagram of the three-dimensional structure of the adjustment block of the present invention; Figure 6 For the present invention Figure 2 Enlarged view of point B in FIG. Figure 7 Schematic diagram of the three-dimensional structure of the telescopic frame of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the material baffle of the present invention.

[0020] In the figure: 1. Control console, 2. Fixed table, 3. Lifting slide rail, 4. Silk screen frame, 5. Sliding table, 6. First driving member, 7. Connecting frame, 8. Baffle, 9. Ink scraping strip, 201. Second driving member, 202. Connecting rod, 203. Connecting block, 204. Block, 205. Groove, 301. Adjusting block, 302. First bolt, 303. Support block, 304. Telescopic frame, 305. First elastic cloth, 401. Material leveling plate, 402. Material baffle, 403. Second elastic cloth, 404. Second bolt. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and examples.

[0022] Currently, the mainstream plugging process uses silk screen printing, which pushes ink through a scraper to fill the holes in the circuit board. However, most existing equipment uses flat scrapers, which causes a large amount of ink to accumulate in front of the scraper during the printing process and easily overflow from both sides, causing ink waste and surrounding pollution, affecting operation cleanliness and material utilization.

[0023] Example 1: This example discloses a circuit board solder mask ink plugging device for improving the utilization of ink.

[0024] like Figure 1-Figure 3 As shown, it includes a console 1, a fixed table 2 is fixedly connected to the console 1, the fixed table 2 is used to place the circuit board, the console 1 is slidably connected to a lifting slide 3, the console 1 is provided with a lifting module for controlling the lifting slide 3 to slide up and down along the console 1, the lifting slide 3 is detachably connected to the screen printing frame 4, the fixed table 2 and the screen printing frame 4 are aligned up and down, the initial screen printing frame 4 is located above the fixed table 2, the lifting slide 3 is connected to an electric slider for sliding left and right, the electric slider on the lifting slide 3 is fixedly connected to a sliding table 5, the electric slider on the lifting slide 3 can drive the sliding table 5 to slide left and right, and the sliding table 5 is installed with a first driving member 6, The first driving member 6 is an electric push rod, and the sliding table 5 is slidably connected to the connecting frame 7. The connecting frame 7 is fixedly connected to the telescopic end of the first driving member 6. The first driving member 6 is used to drive the connecting frame 7 to move up and down along the sliding table 5. The connecting frame 7 is rotatably connected to two symmetrically distributed baffles 8. The bottom of the connecting frame 7 is fixedly connected to the ink scraping strip 9, and the two baffles 8 are fixedly connected to the ink scraping strip 9. The connection relationship between the connecting frame 7 and the baffle 8 and the connection relationship between the baffle 8 and the ink scraping strip 9 are limited to this embodiment. The two baffles 8 are respectively used to control the deflection of the two sides of the ink scraping strip 9. The connecting frame 7 is provided with a driving component for driving the two baffles 8 to deflect together.

[0025] like Figure 2-Figure 4As shown, the driving assembly includes a second driving member 201, which is an electric push rod. The second driving member 201 is fixedly connected to the middle part of the connecting frame 7, and the telescopic end of the second driving member 201 is fixedly connected to the connecting rod 202. The connection between the connecting rod 202 and the telescopic end of the second driving member 201 is located in the middle. In this embodiment, the connecting rod 202 can be regarded as a straight rod, and the baffle 8 is fixedly connected to the connecting block 203. The central axis of the connecting block 203 coincides with the rotation axis of the adjacent baffle 8. Two clamping blocks 204 are fixedly connected at both ends of the connecting rod 202. The telescopic end of the second driving member 201 can drive the two clamping blocks 204 to move up and down through the connecting rod 202. The connecting block 203 is provided with a groove 205. The groove 205 is spiral on the connecting block 203. The clamping block 204 slides in the adjacent groove 205 to Figure 2 Direction description: in the initial state, the block 204 is located in the middle of the adjacent groove 205. At this moment, the baffle 8 is in an undeflected state relative to the connecting frame 7. The block 204 moves upward, the baffle 8 deflects to the right, and the block 204 moves downward, the baffle 8 deflects to the left.

[0026] Working principle: When it is necessary to plug the circuit board, the staff places the ink on the right side of the silk screen frame 4 and distributes the ink evenly according to the width of the circuit board. Then, the circuit board is placed on the fixed table 2, and then the lifting module on the control console 1 is turned on, so that the lifting module drives the lifting slide 3 to move downward, and the lifting slide 3 drives the silk screen frame 4 to fit with the fixed table 2 below, so that the silk screen frame 4 is fit with the circuit board placed on the fixed table 2, and then the electric slide on the lifting slide 3 is turned on, so that the electric slider on the lifting slide 3 drives the sliding table 5 to move to the right side of the silk screen frame 4, and then the second driving member 201 is turned on, so that the telescopic end of the second driving member 201 drives the connecting rod 202 to move downward, and the connecting rod 202 drives the two symmetrically distributed blocks 204 to move downward synchronously, and the block 204 slides along the groove 205, so that the block 204 squeezes the connecting block 203 to drive the baffle 8 to deflect to the left, and then the second driving member 201 is closed.

[0027] When the two baffles 8 are deflected to the left, the first driving member 6 is turned on, and the telescopic end of the first driving member 6 drives the connecting frame 7 to move downward, so that the connecting frame 7 drives the bottom ink scraping strip 9 to fit with the screen printing frame 4, and then the electric slider of the lifting slide rail 3 drives the sliding table 5 to move from right to left, so that the sliding table 5 drives the ink scraping strip 9 to move to the left through the connecting frame 7 and the two baffles 8. The ink scraping strip 9 scrapes the ink on the screen printing frame 4 and moves to the left synchronously, so that the connecting frame 7 moves to the left side of the screen printing frame 4. During this period, the ink passes through the screen printing frame 4 into the channel of the circuit board. At this moment, the circuit board completes the plugging work and drives the bottom ink scraping strip 9 to deflect through the two baffles 8. The ink scraping strip 9 blocks the leakage track of the ink, so that the ink is gathered on the pushing side of the ink scraping strip 9, ensuring that the ink is fully utilized and improving the utilization rate of the ink.

[0028] When the circuit board completes the plugging work, the first driving member 6 drives the connecting frame 7 to move upward to the initial height, and then the electric slide on the lifting slide 3 continues to move to the left through the sliding table 5, passing the ink on the left side of the screen printing frame 4. During this period, the second driving member 201 is turned on, and the telescopic end of the second driving member 201 drives the connecting rod 202 to move upward, so that the connecting rod 202 drives the two blocks 204 to move upward synchronously. The blocks 204 drive the baffle 8 to deflect to the right along the connecting frame 7 through the groove 205 and the adjustment block 301, and then The first driving member 6 drives the ink scraping strip 9 downward through the connecting frame 7, so that the ink scraping strip 9 is in contact with the screen printing plate frame 4. Then, the electric slide rail on the lifting slide rail 3 drives the connecting frame 7 from left to right through the sliding table 5, so that the ink scraping strip 9 pushes the ink to the right side of the screen printing plate frame 4. Then, the lifting module on the control console 1 drives the screen printing plate frame 4 upward through the lifting slide rail 3, so that the screen printing plate frame 4 is separated from the fixed table 2, and the circuit board with the plugged hole is removed. When the circuit board needs to be plugged again, the above steps can be repeated.

[0029] Example 2: This example discloses a circuit board solder mask ink plugging device, which is a further improvement on the basis of Example 1.

[0030] When plugging holes on different circuit boards, workers only change the plugging template. That is, for plugging holes on circuit boards of different sizes, they still use a scraper of fixed length to push the ink. As a result, the ink moves to both sides along the scraper during the pushing process, causing the ink to enter the ineffective plugging area, thereby wasting ink.

[0031] like Figure 5-Figure 7As shown, the connecting frame 7 is slidably connected with two symmetrically distributed adjustment blocks 301, and the two adjustment blocks 301 and the two baffles 8 are all slidably connected with the ink scraping strip 9. The baffle 8 is provided with a rounded structure for smoothly guiding the two ends of the ink scraping strip 9 upward. The baffle 8 is provided with a clamp structure (not shown in the figure), which can lock the excess ink scraping strip 9 to the baffle 8 to prevent the ink scraping strip 9 from falling and affecting the plugging operation of the circuit board. The adjustment block 301 is rotatably connected to the adjacent baffle 8, and the connecting rod 202 is a two-way telescopic rod. The fixed part of the connecting rod 202 is fixedly connected to the telescopic end of the second driving member 201, and the connection The two telescopic ends of the rod 202 are respectively slidably connected to the two adjusting blocks 301. The adjusting blocks 301 can drive the telescopic end of the connecting rod 202 to telescopically slide along its fixed part. The connecting rod 202 is used to adapt to the position change of the adjusting block 301 on the connecting frame 7. The two telescopic ends of the connecting rod 202 are respectively fixedly connected to the two clamping blocks 204. The adjusting block 301 is threadedly connected with a first bolt 302. The first bolt 302 is used to squeeze the connecting frame 7 to lock the adjacent adjusting blocks 301. In the initial state, the first bolt 302 is in an extruding state on the connecting frame 7, that is, the adjusting block 301 cannot slide freely along the connecting frame 7.

[0032] like Figure 5-Figure 7 As shown, the connecting frame 7 is slidably connected with two groups of symmetrically distributed support blocks 303. Each group of support blocks 303 is a plurality of support blocks 303 in a linear array. The support blocks 303 in the same group are located between the connecting frame 7 and the corresponding adjustment block 301. The connecting frame 7, the adjustment block 301 and the corresponding group of support blocks 303 are jointly provided with a telescopic frame 304. The telescopic frame 304 is used to synchronously pull the adjacent support blocks 303 to move at an equal distance when the adjustment block 301 moves, so as to make the support blocks 303 evenly support the ink scraping strip 9. Two symmetrically distributed first elastic cloths 305 are fixedly connected between the connecting frame 7 and the adjacent support block 303, between the adjusting block 301 and the adjacent support block 303, and between two adjacent support blocks 303. The first elastic cloths 305 are initially in a stretched state. The first elastic cloths 305 are used to prevent the ink from passing through the connecting frame 7 when the ink-squeegee rubber strip 9 pushes the ink. The first elastic cloths 305 can adapt to the position changes of the connecting frame 7, the support block 303 and the adjusting block 301, and the first elastic cloths 305 are sealed and fitted with the ink-squeegee rubber strip 9.

[0033] Working principle: Before plugging the circuit board, the two baffles 8 are not in a deflected state. Then the staff rotates the two first bolts 302, and the first bolts 302 release the squeeze on the connecting frame 7. At the same time, the ink scraping strip 9 attached to the baffle 8 is removed. At this time, the adjustment block 301 can slide freely along the ink scraping strip 9, and the adjustment block 301 can slide freely along the connecting frame 7. The staff adjusts the distance between the two adjustment blocks 301 according to the width of the circuit board, so that the adjustment block 301 drives the adjacent baffles 8 to move synchronously. At this time, the two adjustment blocks 301 respectively drive the adjacent baffles 8 to slide synchronously along the ink scraping strip 9, so that the distance between the two baffles 8 is consistent with the circuit board. The width distance of the board is the same, and then the two first bolts 302 are tightened again. The first bolts 302 squeeze the connecting frame 7 to lock the two adjusting blocks 301, and at the same time straighten the two ends of the scraper strip 9, and again lock the two ends of the scraper strip 9 on the two baffles 8 through the clamp. At this moment, the adjustment work of the two adjusting blocks 301 is completed, and then the plugging work of the circuit board is started. By adjusting the distance between the two adjusting blocks 301, the distance between the two baffles 8 is made the same as the width of the circuit board, so as to adapt to the plugging work of different models of circuit boards, and ensure that the ink will not enter the invalid position on the silk screen frame 4 when plugging the holes of different circuit boards, thereby further improving the utilization of the ink.

[0034] When the two adjustment blocks 301 slide along the connecting frame 7, the adjustment block 301 will drive the support block 303 thereon to move synchronously through the telescopic frame 304, so that several support blocks 303 slide synchronously along the connecting frame 7 and the ink scraping strip 9, changing the support position of several support blocks 303 on the ink scraping strip 9, and at the same time the first elastic cloth 305 undergoes corresponding telescopic changes. During this period, under the action of the telescopic frame 304, the distance between several support blocks 303 is always in the same state, that is, evenly distributed between the support blocks 303 and the connecting frame 7, so that several support blocks 303 evenly support the ink scraping strip 9, reducing the probability of deformation of the ink scraping strip 9 when the ink plugging hole is pushed by force. After the plugging work of the circuit board is completed, when the staff needs to replace the plugging holes of different circuit boards, the above steps are repeated.

[0035] Example 3: This example discloses a circuit board solder mask ink plugging device, which is a further improvement on the basis of Example 2.

[0036] Due to the different distribution of drill holes on the circuit board, after a long period of plugging work on the circuit board, the local ink consumption is fast, resulting in uneven distribution of ink, and then when plugging the circuit board, some drill holes cannot be filled with ink.

[0037] like Figure 8As shown, a material distribution plate 401 is fixedly connected to the right side of the screen printing plate frame 4, and the material distribution plate 401 is slidably connected to two symmetrically distributed material baffles 402. The two material baffles 402 are both located on the left side of the material distribution plate 401, and the material baffles 402 are in an inclined state. The left ends of the two material baffles 402 are close to each other. A second elastic cloth 403 is fixedly connected between the two material baffles 402. The second elastic cloth 403 is used to adapt to the position change of the two material baffles 402 and block the movement of ink. The second elastic cloth 403 is always in a stretched state. The material baffle 402 is threadedly connected with a second bolt 404. The second bolt 404 is used to squeeze the material distribution plate 401 to lock the adjacent material baffles 402. In the initial state, the second bolt 404 is in an extruded state with respect to the material distribution plate 401, that is, the two material baffles 402 cannot slide freely along the material distribution plate 401.

[0038] Working principle: When plugging the hole of the circuit board, after adjusting the position of the two baffles 8, the staff rotates the two second bolts 404 to release the squeezing of the second bolts 404 on the material leveling plate 401, so that the two baffles 402 slide along the material leveling plate 401. During this period, the second elastic cloth 403 undergoes corresponding expansion and contraction transformation, and the left side of the baffle plate 402 is aligned with the rotation axis of the corresponding baffle 8. Then the two second bolts 404 are rotated in the opposite direction to make the second bolts 404 squeeze the material leveling plate 401 to squeeze the baffle plate 402, and then the plugging work of the circuit board is started. When the connecting frame 7 drives the ink scraper strip 9 to move from right to left to push the ink to its original position, the connecting frame 7 drives the ink to move toward the material leveling plate 401 on the right side of the silk screen frame 4 through the ink scraper strip 9, so that the ink scraper strip 9 pushes the ink and approaches the second elastic cloth 403. Under the squeezing force of the ink scraper strip 9 and the second elastic cloth 403, the ink between the two is evenly distributed.

[0039] After the ink is evenly distributed between the scraper strip 9 and the second elastic cloth 403, the first driving member 6 controls the connecting frame 7 to rise to the initial height. At this time, the scraper strip 9 is separated from the second elastic cloth 403, and the ink between the two is evenly dispersed to the left side of the second elastic cloth 403 due to gravity. When the circuit board needs to be plugged again, the sliding table 5 drives the connecting frame 7 to move right so that the right side of the scraper strip 9 driven by the connecting frame 7 is coplanar with the left side of the second elastic cloth 403. Then the first driving member 6 controls the connecting frame 7 to fall, and the above circuit board plugging process is repeated.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A circuit board solder mask ink plugging device, comprising a control console (1), a fixed platform (2) fixedly connected to the control console (1), a lifting slide rail (3) slidably connected to the control console (1), the lifting slide rail (3) being detachably connected to a screen printing frame (4), the fixed platform (2) and the screen printing frame (4) being aligned vertically, the lifting slide rail (3) being slidably connected to an electric slider, the electric slider on the lifting slide rail (3) being fixedly connected to a sliding platform (5), the sliding platform (5) being installed with a first driving member (6), the sliding platform (5) being slidably connected to a connecting frame (7), the connecting frame (7) being fixedly connected to the telescopic end of the first driving member (6), and characterized in that: The connecting frame (7) is provided with two symmetrically distributed baffles (8), the bottom of the connecting frame (7) is fixedly connected with a scraper strip (9), the two baffles (8) are respectively used to control the deflection of the two sides of the scraper strip (9), and the connecting frame (7) is provided with a driving component for driving the two baffles (8) to deflect together.

2. A circuit board solder mask ink plugging device according to claim 1, characterized in that: The driving assembly includes a second driving member (201), the second driving member (201) is fixedly connected to the connecting frame (7), the telescopic end of the second driving member (201) is fixedly connected to a connecting rod (202), the connection between the connecting rod (202) and the telescopic end of the second driving member (201) is located in the middle thereof, the baffle (8) is fixedly connected to a connecting block (203), the central axis of the connecting block (203) coincides with the rotation axis of the adjacent baffle (8), the connecting rod (202) is fixedly connected to two clamping blocks (204), the connecting block (203) is provided with a groove (205), and the clamping block (204) is located in the adjacent groove (205) and slides.

3. A circuit board solder mask ink plugging device according to claim 2, characterized in that: The connecting frame (7) is slidably connected to two symmetrically distributed adjustment blocks (301), the two adjustment blocks (301) and the two baffles (8) are slidably connected to the ink scraping rubber strip (9), and the adjustment block (301) is rotationally connected to the adjacent baffle (8).

4. A circuit board solder mask ink plugging device according to claim 3, characterized in that: The connecting rod (202) is a bidirectional telescopic rod, the fixed portion of the connecting rod (202) is fixedly connected to the telescopic end of the second driving member (201), the two telescopic ends of the connecting rod (202) are respectively slidably connected to the two adjustment blocks (301), and the two telescopic ends of the connecting rod (202) are respectively fixedly connected to the two clamping blocks (204).

5. A circuit board solder mask ink plugging device according to claim 4, characterized in that: The adjusting block (301) is threadedly connected to a first bolt (302), and the first bolt (302) is used to squeeze the connecting frame (7) to lock the adjacent adjusting block (301).

6. A circuit board solder mask ink plugging device according to claim 3, characterized in that: The connecting frame (7) is slidably connected to two groups of symmetrically distributed support blocks (303), each group of support blocks (303) comprising a plurality of support blocks (303) in a linear array, and the support blocks (303) in the same group are located between the connecting frame (7) and the corresponding adjustment block (301).

7. A circuit board solder mask ink plugging device according to claim 6, characterized in that: The connecting frame (7), the adjusting block (301) and the corresponding group of support blocks (303) are jointly provided with a telescopic frame (304) for enabling a plurality of support blocks (303) to evenly support the ink scraping rubber strip (9).

8. A circuit board solder mask ink plugging device according to claim 7, characterized in that: A symmetrically distributed first elastic cloth (305) is fixedly connected between the connecting frame (7) and the adjacent support block (303), between the adjusting block (301) and the adjacent support block (303), and between two adjacent support blocks (303). The first elastic cloth (305) is sealed and fitted with the ink scraping rubber strip (9).

9. A circuit board solder mask ink plugging device according to claim 1, characterized in that: A material leveling plate (401) is fixedly connected to one side of the screen printing plate frame (4), and the material leveling plate (401) is slidably connected to two symmetrically distributed material blocking plates (402), and a second elastic cloth (403) is fixedly connected between the two material blocking plates (402).

10. A circuit board solder mask ink plugging device according to claim 9, characterized in that: The baffle plate (402) is threadedly connected to a second bolt (404), and the second bolt (404) is used to squeeze the material leveling plate (401) to lock the adjacent baffle plate (402).

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