A solder resist ink plugging device for PCB

Abstract

The utility model belongs to PCB board processing equipment technical field provides a kind of PCB board's solder resist ink hole filling device, it includes: machine body;Ventilated backing plate, it is set on machine body;First sliding seat, it is set below ventilated backing plate;Second sliding seat, it is set above ventilated backing plate;Third sliding seat, it is set on second sliding seat, third sliding seat and second sliding seat are slidably connected along X axis direction;Telescopic link, its first end is fixedly connected with first sliding seat, second end is fixedly connected with third sliding seat;First drive component, it is set on machine body;Second drive component, it is set on machine body;Scraper component, it is set in the bottom of third sliding seat;And air extraction component, it is set in the top of first sliding seat.The utility model provides PCB board's solder resist ink hole filling device, simple structure, not only can realize the synchronous movement of scraper component and air extraction component, and still will not appear the situation of two movement asynchronism.

Description

Technical Field

[0001] This utility model relates to the technical field of PCB board processing equipment, and specifically to a solder resist ink plugging device for PCB boards. Background Technology

[0002] In the manufacturing process of circuit boards (PCBs), solder resist via filling is a crucial step in ensuring the electrical performance, mechanical reliability, and lifespan of the PCB. This process involves filling the vias on the PCB with solder resist ink, isolating the via walls from the external environment, preventing solder from flowing into the vias and causing short circuits during subsequent soldering, and simultaneously preventing oxidation and corrosion of the metal plating inside the vias, thus ensuring the stable operation of the PCB under complex working conditions.

[0003] A search revealed that a utility model patent with authorization announcement number CN204046961U discloses a device for plugging holes with yellow solder resist ink on circuit boards. By setting up a scraper device and an air extraction device, the device achieves the purpose of improving the hole plugging effect.

[0004] However, the scraper device and the air extraction device of the above-mentioned yellow solder resist ink plugging device for circuit boards are driven by two independent drive devices. When the system malfunctions, the two (scraper device and air extraction device) are prone to asynchronous movement (for example, the scraper has reached the target position, but the air extraction device is lagging behind), which leads to problems such as untimely air extraction when plugging the holes. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a solder resist ink plugging device for PCB boards to solve or alleviate the above-mentioned technical problems in the prior art.

[0006] To achieve the above objectives, this utility model provides a solder resist ink plugging device for PCB boards, comprising: Organism; A breathable pad is provided on the body and fixedly connected to the body; The first sliding seat is disposed below the breathable pad and is slidably connected to the body along the X-axis, so that the first sliding seat can only move back and forth along the X-axis relative to the body. The second sliding seat is disposed above the breathable pad and is slidably connected to the body along the Z-axis direction, so that the second sliding seat can only move back and forth along the Z-axis direction relative to the body. The third sliding seat is disposed on the second sliding seat and can move synchronously with the second sliding seat. The third sliding seat and the second sliding seat are slidably connected along the X-axis, so that the third sliding seat can only reciprocate along the X-axis relative to the second sliding seat. The telescopic rod has its first end fixedly connected to the first sliding seat and its second end fixedly connected to the third sliding seat; A first drive assembly is disposed on the machine body, and the first drive assembly is throttlely connected to the first sliding seat. A second drive assembly is disposed on the machine body, and the second drive assembly is throttlely connected to the second sliding seat. A scraper assembly, which is disposed at the bottom of the third sliding block and is capable of moving synchronously with the third sliding block; and An air extraction assembly is disposed on top of the first sliding seat and is capable of moving synchronously with the first sliding seat.

[0007] Furthermore, the scraper assembly includes: A scraper, which is hinged to the third sliding seat, and the hinge center line of the scraper is parallel to the Y-axis. The scraper has a fifth position and a sixth position, and the scraper can reciprocate between the fifth position and the sixth position about its hinge center line. A third driving structure is disposed on the third sliding seat, and the third driving structure is connected to the scraper via a transmission. The third driving structure is used to drive the scraper to move from the fifth position to the sixth position or from the sixth position to the fifth position; and A locking structure is provided on the third sliding seat and the scraper. The locking structure has a lockable state and an unlocked state that can be switched between each other. When the locking structure is in the locked state, it locks the scraper to hold it in the fifth position or the sixth position. When the locking structure is in the unlocked state, it releases the lock on the scraper so that the scraper can move from the fifth position to the sixth position or from the sixth position to the fifth position.

[0008] Furthermore, the third drive structure includes a third motor, which is fixedly mounted on the third sliding seat, and the power output shaft of the third motor is connected to the scraper drive.

[0009] Furthermore, the locking structure includes: A locking hole is provided on the end side wall of one end of the scraper; A locking slider, movably mounted on the third sliding seat, is movable towards or away from the locking hole. The side of the locking slider facing the locking hole has a locking part adapted to the locking hole. Two locking parts are provided; when the scraper is in the fifth position, the locking hole corresponds to one of the locking parts; when the scraper is in the sixth position, the locking hole corresponds to the other locking part. The first electric push rod is fixedly mounted on the third sliding seat, and the power output shaft of the first electric push rod is fixedly connected to the locking slider.

[0010] Further, the first driving component includes: A first lead screw is provided along the X-axis direction and is rotatably connected to the machine body. A first nut is sleeved on the first lead screw and is connected to the first lead screw for transmission; the first nut is fixedly connected to the first sliding seat; and The first motor is fixedly mounted on the machine body, and the power output shaft of the first motor is connected to the first lead screw drive.

[0011] Furthermore, the second drive assembly includes a second electric push rod, which is fixedly connected to the body, and the power output shaft of the second electric push rod is fixedly connected to the second sliding seat.

[0012] Furthermore, the air extraction assembly includes: A hollow vacuum chamber is fixedly mounted on the top of the first sliding seat, and the top sidewall of the vacuum chamber has several through holes; and An air pump is fixedly mounted on the first sliding seat, and the air pump is connected to the air extraction shell through a pipe.

[0013] The beneficial effects of this utility model are: The solder resist ink plugging device for PCB boards provided by this utility model, by setting a telescopic rod, allows the first sliding seat to transmit power to the third sliding seat through the telescopic rod during the movement of the first sliding seat driven by the first driving component. This enables the third sliding seat to move synchronously with the first sliding seat, thereby causing the suction component and the scraper component to move synchronously. Furthermore, by using the same driving component to drive the third sliding seat and the first sliding seat to move synchronously, the problem of asynchronous movement between the first and second sliding seats is avoided. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 A perspective view of a solder resist ink plugging device for a PCB board provided in an embodiment of the present invention, in a first direction. Figure 2 for Figure 1 A perspective view of the solder mask plugging device for the PCB board shown in the second direction. Figure 3 for Figure 2 An enlarged view of part A is shown below; Figure 4 for Figure 2 Enlarged view of section B shown Figure 5 for Figure 1 An exploded perspective view of the combination of the scraper assembly and the third sliding seat of the solder mask filling device for the PCB board shown. Figure 6 for Figure 1 The diagram shows a structural view of the solder mask plugging device for the PCB board when the first sliding seat moves from the first position to the second position. Figure 7 for Figure 1 The diagram shows a structural view of the solder mask plugging device on the PCB board when the first sliding seat moves from the second position to the first position.

[0016] Figure label: 110. Body; 120. Ventilation pad; 130. First sliding seat; 140. Second sliding seat; 150. Third sliding seat; 160. Telescopic rod; 171. First guide rail; 172. First slider; 181. Guide rod; 182. Sliding sleeve; 191. Second guide rail; 192. Second slider; 210. First lead screw; 220. First motor; 230. First sensor; 240. First sensing plate; 310. Second electric push rod; 320. Second sensor; 330. Second sensing plate; 410. Scraper; 420. Third motor; 430. Locking socket; 440. Locking slider; 441. Locking part; 450. First electric push rod; 460. Hinge shaft; 510. Vacuum shell; 520. Vacuum pump; 610. PCB board; 620. Printed circuit board. Detailed Implementation

[0017] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0018] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0019] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] like Figure 1-7As shown, this utility model provides a solder resist ink plugging device for PCB boards, including a body 110, a breathable pad 120, a first sliding seat 130, a second sliding seat 140, a third sliding seat 150, a telescopic rod 160, a first drive assembly, a second drive assembly, a scraper assembly, and an air extraction assembly.

[0024] The breathable pad 120 is installed on the body 110 and fixedly connected to the body 110. The first sliding seat 130 is installed below the breathable pad 120. The first sliding seat 130 is slidably connected to the body 110 along the X-axis direction, so that the first sliding seat 130 can only reciprocate along the X-axis direction relative to the frame 110.

[0025] Specifically, a first guide rail 171 is fixedly mounted on the body 110 along the X-axis, and a first slider 172 that cooperates with the first guide rail 171 is correspondingly mounted on the bottom of the first sliding seat 130. During operation, the cooperation between the first guide rail 171 and the first slider 172 not only limits and guides the movement of the first sliding seat 130, thereby improving the reliability and accuracy of the movement of the first sliding seat 130, but also effectively supports the first sliding seat 130.

[0026] The first sliding seat 130 has a first position and a second position, and the first sliding seat 130 is capable of reciprocating linear motion between the first position and the second position along the X-axis. Specifically, when the first sliding seat 130 is in the first position, it is located at the first end of the body 110 (i.e.,...). Figure 6 and Figure 7 (left end of the middle); when the first sliding seat 130 is in the second position, the first sliding seat 130 is located at the second end of the body 110 (i.e., the left ... Figure 6 and Figure 7 (The right end of the middle).

[0027] The second sliding seat 140 is installed above the ventilated pad 120. The second sliding seat 140 is slidably connected to the body 110 along the Z-axis direction, so that the second sliding seat 140 can only reciprocate along the Z-axis direction relative to the frame 110.

[0028] Specifically, a guide rod 181 is fixedly installed on the body 110 along the Z-axis, and a sliding sleeve 182 adapted to the guide rod 181 is correspondingly provided on the second sliding seat 140. During operation, the guide rod 181 and the sliding sleeve 182 cooperate to limit and guide the movement of the second sliding seat 140, thereby improving the reliability and accuracy of the movement of the second sliding seat 140.

[0029] The second sliding block 140 has a third position and a fourth position, and the second sliding block 140 can reciprocate linearly between the third position and the fourth position along the Z-axis. Specifically, when the second sliding block 140 is in the third position, the second sliding block 140 is at a higher position; when the second sliding block 140 is in the fourth position, the second sliding block 140 is at a lower position.

[0030] The third sliding seat 150 is mounted on the second sliding seat 140 and can move synchronously with the second sliding seat 140. The third sliding seat 150 and the second sliding seat 140 are slidably connected along the X-axis, so that the third sliding seat 150 can only reciprocate linearly along the X-axis relative to the second sliding seat.

[0031] Specifically, a second guide rail 191, arranged along the X-axis, is fixedly installed at the bottom of the second sliding seat 140, and a second slider 192, adapted to the second guide rail 191, is correspondingly provided at the top of the third sliding seat 150. During operation, the cooperation of the second guide rail 191 and the second slider 192 not only limits and guides the movement of the third sliding seat 150, thereby improving the reliability and accuracy of its movement, but also effectively supports the third sliding seat 150.

[0032] The first end of the telescopic rod 160 is fixedly connected to the first sliding seat 130, and the second end is fixedly connected to the third sliding seat 150. During operation, the first sliding seat 130 can transmit power to the third sliding seat 150 via the telescopic rod 160, thereby driving the third sliding seat 150 to move synchronously. A first drive assembly is mounted on the machine body 110 and is connected to the first sliding seat 130 via a transmission connection. The first drive assembly is used to drive the first sliding seat 130 to perform reciprocating linear motion along the X-axis.

[0033] The second drive assembly is mounted on the body 110 and is connected to the second sliding seat 140 via a transmission connection. The second drive assembly drives the second sliding seat 140 to perform reciprocating linear motion along the Z-axis. The scraper assembly is mounted on the bottom of the third sliding seat 150 and can move synchronously with the third sliding seat 150. The suction assembly is mounted on the top of the first sliding seat 130 and can move synchronously with the first sliding seat 130.

[0034] Specifically, during operation, firstly, the first driving component drives the first sliding seat 130 to either the first or second position; then, the PCB board 610 is placed on the venting pad 120; subsequently, the printed circuit board 620 is placed on the PCB board 610; next, the second driving component drives the second sliding seat 140 downward from the third position to the fourth position, while the second sliding seat 140 moves downward along with the third sliding seat 150, causing the scraper assembly to come into contact with the printed circuit board 620; then, the first driving component drives the first sliding seat 130 to move from the first position to the second position or from the second position to the first position, and simultaneously, the suction component is activated, which suctions air from the corresponding position on the venting pad 120 below the scraper assembly, thereby filling the holes with solder resist ink and effectively preventing defects such as incomplete filling or air bubbles. During the movement of the first sliding seat 130, the first sliding seat 130 moves synchronously with the third sliding seat 150 via the telescopic rod 160, ensuring that the scraper assembly and the suction component move synchronously, preventing asynchronous movement between the two components.

[0035] The solder resist ink plugging device for the PCB board provided in this embodiment, by setting a telescopic rod 160, allows the first sliding seat 130 to transmit power to the third sliding seat 150 through the telescopic rod 160 during the movement of the first sliding seat 130 driven by the first driving component. This enables the third sliding seat 150 to move synchronously with the first sliding seat 130, thereby causing the suction component and the scraper component to move synchronously. Furthermore, by using the same driving component to drive the third sliding seat 150 and the first sliding seat 130 to move synchronously, the problem of asynchronous movement between the first sliding seat 130 and the third sliding seat 150 is avoided.

[0036] like Figure 6 and Figure 7 As shown, the first drive assembly includes a first lead screw 210, a first nut, and a first motor 220.

[0037] The first lead screw 210 is set along the X-axis and is rotatably connected to the machine body 110. A first nut is sleeved on the first lead screw 210 and is driven by it, so that when the first lead screw 210 rotates, it drives the first nut to move along the axis of the first lead screw 210. The first nut is fixedly connected to the first sliding seat 130, so that when the first nut moves, it moves synchronously with the first sliding seat 130. The first motor 220 is fixedly mounted on the machine body 110, and its power output shaft is driven by the first lead screw 210, so that when the first motor 220 rotates, it drives the first lead screw 210 to rotate.

[0038] During operation, the first motor 220 starts, driving the first lead screw 210 to rotate. With the cooperation of the first lead screw 210 and the first nut, the first nut moves along the X-axis, and the first nut, along with the first sliding seat 130, moves along the X-axis. Specifically, in this embodiment, when the first motor 220 drives the first lead screw 210 to rotate in the positive direction, the first lead screw 210 drives the first nut to move in the positive X-axis direction, thereby driving the first sliding seat 130 to move from the first position to the second position; when the first motor 220 drives the first lead screw 210 to rotate in the opposite direction, the first lead screw 210 drives the first nut to move in the negative X-axis direction, thereby driving the first sliding seat 130 to move from the second position to the first position.

[0039] Thus, by switching the rotation direction of the first lead screw 210 driven by the first motor 220, the reciprocating linear motion of the first sliding block 130 can be achieved. Specifically, assuming the first sliding block 130 is in the first position, the first motor 220 first drives the first lead screw 210 to rotate in the positive direction, thereby driving the first sliding block 130 to move from the first position to the second position. When the first sliding block 130 moves to the second position, the rotation direction of the first motor 220 is switched, so that the first motor 220 drives the first lead screw 210 to rotate in the opposite direction, thereby driving the first sliding block 130 to move from the second position to the first position.

[0040] Preferably, the first motor 220 is a servo motor, so as to facilitate control of the rotation direction of the first motor 220.

[0041] The first drive component in this embodiment has a simple structure and reasonable design. Furthermore, through the cooperation between the first lead screw 210 and the first nut, the first drive component can drive the first sliding seat 130 to move with higher precision.

[0042] Preferably, such as Figure 2 and Figure 3 As shown, a first sensor 230 is provided at both the first and second ends of the body 110, and a first sensing plate 240 is correspondingly provided on the first sliding seat 130. When the first sensor 230 at the first end of the body 110 detects the first sensing plate 240, it indicates that the first sliding seat 130 has moved to the first position. The first sensor 230 transmits the detected signal to the controller, thereby controlling the first drive component to stop running. When the first sensor 230 at the second end of the body 110 detects the first sensing plate 240, it indicates that the first sliding seat 130 has moved to the second position. The first sensor 230 transmits the detected signal to the controller, thereby controlling the first drive component to stop running.

[0043] like Figure 1 , Figure 6 and Figure 7 As shown, in this embodiment, the second drive assembly includes a second electric push rod 310, which is fixedly connected to the body 110, and the power output shaft of the second electric push rod 310 is fixedly connected to the second sliding seat 140.

[0044] During operation, the second sliding seat 140 is driven to move vertically upwards and downwards by extending or retracting the power output shaft of the second electric push rod 310. Specifically, in this embodiment, when the power output shaft of the second electric push rod 310 extends outwards, the second electric push rod 310 drives the second sliding seat 140 to rise; when the power output shaft of the second electric push rod 310 retracts inwards, the second electric push rod 310 drives the second sliding seat 140 to fall, and the second sliding seat 140 moves downwards together with the third sliding seat 150, thereby causing the scraper assembly to come into contact with the printing plate 620, resulting in a simple structure.

[0045] Preferably, such as Figure 2 and Figure 4 As shown, two second sensors 320 are arranged longitudinally on the body 110, and a second sensing plate 330 is correspondingly arranged on the second sliding seat 140. When the upper second sensor 320 detects the second sensing plate 330, it indicates that the second sliding seat 140 has moved to the third position. The second sensor 320 transmits the detected signal to the controller, thereby controlling the second drive component to stop running. When the lower second sensor 320 detects the second sensing plate 330, it indicates that the first sliding seat 130 has moved to the fourth position. The second sensor 320 transmits the detected signal to the controller, thereby controlling the second drive component to stop running.

[0046] like Figures 1-5 As shown, in this embodiment, the scraper assembly includes a scraper 410, a third drive structure, and a locking structure.

[0047] The scraper 410 is hinged to the third sliding seat 150. Specifically, in this embodiment, the scraper 410 is hinged to the third sliding seat 150 via a hinge shaft 460. The hinge center line of the scraper 410 is parallel to the Y-axis, and the scraper 410 has a fifth position and a sixth position. The scraper 410 can reciprocate between the fifth and sixth positions around its hinge center line. When the scraper 410 is in the fifth position, the scraper 410 tilts towards the second end of the body 110 (e.g., ...). Figure 6 (As shown); when the scraper 410 is in the sixth position, the scraper 410 tilts towards the first end of the body 110 (as shown). Figure 7 (As shown).

[0048] During operation, when the first sliding seat 130 moves from the first position to the second position, the scraper 410 is placed in the fifth position; and when the first sliding seat 130 moves from the second position to the first position, the scraper 410 is placed in the sixth position. This ensures that the scraper 410 can effectively work on the printed circuit board 620 regardless of whether the first sliding seat 130 moves from the first position to the second position or from the second position to the first position. Therefore, regardless of whether the first sliding seat 130 moves from the first position to the second position or from the second position to the first position, the solder mask ink can be used to fill the holes on the PCB board 610, eliminating the need to move the scraper 410 back to its original position after processing one PCB board 610 before processing the next PCB board 610, thus improving work efficiency.

[0049] The third drive structure is mounted on the third sliding seat 150 and is connected to the scraper 410 in a transmission manner. The third drive structure is used to drive the scraper 410 to move from the fifth position to the sixth position or from the sixth position to the fifth position.

[0050] A locking structure is provided on the third sliding seat 150 and the scraper 410. The locking structure has a locked state and an unlocked state that can be switched between each other. When the locking structure is in the locked state, the locking structure locks the scraper 410 to keep the scraper 410 in the fifth position or the sixth position. When the locking structure is in the unlocked state, the locking structure releases the lock on the scraper 410 so that the scraper 410 can move from the fifth position to the sixth position or from the sixth position to the fifth position.

[0051] During operation, as the first sliding seat 130 moves from the first position to the second position, the scraper 410 is driven to the fifth position by the third driving structure, and the scraper 410 is held in the fifth position by the locking structure. As the first sliding seat 130 moves from the second position to the first position, the scraper 410 is driven to the sixth position by the third driving structure, and the scraper 410 is held in the sixth position by the locking structure.

[0052] In this embodiment, the scraper 410 is driven to move from the fifth position to the sixth position or from the sixth position to the fifth position by the third driving structure, and the scraper 410 is held in the corresponding position by the locking structure. This allows the first sliding seat 130 to perform solder resist ink plugging on the PCB board 610 whether it moves from the first position to the second position or from the second position to the first position, thus improving work efficiency.

[0053] like Figure 5As shown, the third drive structure includes a third motor 420, which is fixedly mounted on the third sliding seat 150. The power output shaft of the third motor 420 is connected to the scraper 410 via a transmission connection. In this embodiment, the power output shaft of the third motor 420 is connected to the power input shaft of the scraper 410 via a gear structure. In other embodiments, the power output shaft of the third motor 420 can be fixedly connected to the power input shaft of the scraper 410 via a coupling, or it can be connected to the power input shaft of the scraper 410 via a synchronous belt structure.

[0054] During operation, the third motor 420 drives the scraper 410 to rotate, thereby moving the scraper 410 from the fifth position to the sixth position or from the sixth position to the fifth position. Specifically, when the third motor 420 rotates in the forward direction, it drives the scraper 410 to move from the fifth position to the sixth position; when the third motor 420 rotates in the reverse direction, it drives the scraper 410 to move from the sixth position to the fifth position.

[0055] Preferably, the third motor 420 is a servo motor, so as to control the rotation direction and number of rotations of the third motor 420, thereby achieving the purpose of accurately driving the scraper 410 from the fifth position to the sixth position or from the sixth position to the fifth position.

[0056] like Figure 5 As shown, the locking structure includes a locking socket 430, a locking slider 440, and a first electric push rod 450.

[0057] A locking hole 430 is formed on the end side wall of one end of the scraper 410. A locking slider 440 is movably disposed on the third sliding seat 150. The locking slider 440 can move toward or away from the locking hole 430. A locking part 441 adapted to the locking hole 430 is provided on the side of the locking slider 440 facing the locking hole 430. There are two locking parts 441. When the scraper 410 is in the fifth position, the locking hole 430 corresponds to one of the locking parts 441. When the scraper 410 is in the sixth position, the locking hole 430 corresponds to the other locking part 441.

[0058] Specifically, the locking slider 440 has a seventh position and an eighth position. When the locking slider 440 is in the seventh position, the locking part 441 separates from the locking socket 430, thereby releasing the lock on the scraper 410. When the locking slider 440 is in the eighth position, the locking part 441 is inserted into the locking socket 430, thereby locking the scraper 410.

[0059] The first electric push rod 450 is fixedly mounted on the third sliding seat 150, and its power output shaft is fixedly connected to the locking slider 440. During operation, the extension or retraction of the power output shaft of the first electric push rod 450 drives the locking slider 440 to reciprocate between the seventh and eighth positions. Specifically, in this embodiment, when the power output shaft of the first electric push rod 450 extends outward, it drives the locking slider 440 to move from the seventh to the eighth position; when the power output shaft of the first electric push rod 450 retracts inward, it drives the locking slider 440 to move from the eighth to the seventh position.

[0060] During operation, the power output shaft of the first electric push rod 450 extends outward, thereby driving the locking slider 440 to move from the seventh position to the eighth position, thus locking the scraper 410 in the fifth or sixth position; when the power output shaft of the first electric push rod 450 retracts inward, it drives the locking slider 440 to move from the eighth position to the seventh position, thus releasing the locking of the scraper 410.

[0061] like Figure 3 As shown, the air extraction assembly includes an air extraction housing 510 and an air extraction pump 520.

[0062] The vacuum housing 510 is hollow and is fixedly installed on the top of the first sliding seat 130. Several through holes are provided on the top side wall of the vacuum housing 510. The vacuum pump 520 is fixedly installed on the first sliding seat 130 and is connected to the vacuum housing 510 through a pipe.

[0063] During operation, the air pump 520 draws air, thereby creating a negative pressure at the through hole of the air extraction housing 510, which in turn causes the solder resist ink to fill the hole, effectively preventing defects such as incomplete filling or the generation of air bubbles.

[0064] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A solder resist ink plugging device for PCB boards, characterized in that, include: Organism; A breathable pad is provided on the body and fixedly connected to the body; The first sliding seat is disposed below the breathable pad and is slidably connected to the body along the X-axis, so that the first sliding seat can only move back and forth along the X-axis relative to the body. The second sliding seat is disposed above the breathable pad and is slidably connected to the body along the Z-axis direction, so that the second sliding seat can only move back and forth along the Z-axis direction relative to the body. The third sliding seat is disposed on the second sliding seat and can move synchronously with the second sliding seat. The third sliding seat and the second sliding seat are slidably connected along the X-axis, so that the third sliding seat can only reciprocate along the X-axis relative to the second sliding seat. The telescopic rod has its first end fixedly connected to the first sliding seat and its second end fixedly connected to the third sliding seat; A first drive assembly is disposed on the machine body, and the first drive assembly is throttlely connected to the first sliding seat. A second drive assembly is disposed on the machine body, and the second drive assembly is throttlely connected to the second sliding seat. A scraper assembly is disposed at the bottom of the third sliding block and is capable of moving synchronously with the third sliding block; as well as An air extraction assembly is disposed on top of the first sliding seat and is capable of moving synchronously with the first sliding seat.

2. The solder resist ink plugging device for PCB boards according to claim 1, characterized in that, The scraper assembly includes: A scraper, which is hinged to the third sliding seat, and the hinge center line of the scraper is parallel to the Y-axis. The scraper has a fifth position and a sixth position, and the scraper can reciprocate between the fifth position and the sixth position about its hinge center line. A third driving structure is disposed on the third sliding seat, and the third driving structure is connected to the scraper via a transmission. The third driving structure is used to drive the scraper to move from the fifth position to the sixth position or from the sixth position to the fifth position; and A locking structure is provided on the third sliding seat and the scraper. The locking structure has a lockable state and an unlocked state that can be switched between each other. When the locking structure is in the locked state, it locks the scraper to hold it in the fifth position or the sixth position. When the locking structure is in the unlocked state, it releases the lock on the scraper so that the scraper can move from the fifth position to the sixth position or from the sixth position to the fifth position.

3. The solder resist ink plugging device for PCB boards according to claim 2, characterized in that, The third drive structure includes a third motor, which is fixedly mounted on the third sliding seat, and the power output shaft of the third motor is connected to the scraper drive.

4. The solder resist ink plugging device for PCB boards according to claim 3, characterized in that, The locking structure includes: A locking hole is provided on the end side wall of one end of the scraper; A locking slider, movably mounted on the third sliding seat, is movable towards or away from the locking hole. The side of the locking slider facing the locking hole has a locking part adapted to the locking hole. Two locking parts are provided; when the scraper is in the fifth position, the locking hole corresponds to one of the locking parts; when the scraper is in the sixth position, the locking hole corresponds to the other locking part. The first electric push rod is fixedly mounted on the third sliding seat, and the power output shaft of the first electric push rod is fixedly connected to the locking slider.

5. The solder resist ink plugging device for PCB boards according to claim 1, characterized in that, The first driving component includes: A first lead screw is provided along the X-axis direction and is rotatably connected to the machine body. A first nut is sleeved on the first lead screw and is connected to the first lead screw for transmission; the first nut is fixedly connected to the first sliding seat; and The first motor is fixedly mounted on the machine body, and the power output shaft of the first motor is connected to the first lead screw drive.

6. The solder resist ink plugging device for PCB boards according to claim 1, characterized in that, The second drive assembly includes a second electric push rod, which is fixedly connected to the machine body, and the power output shaft of the second electric push rod is fixedly connected to the second sliding seat.

7. The solder resist ink plugging device for PCB boards according to any one of claims 1-6, characterized in that, The air extraction assembly includes: A hollow vacuum chamber is fixedly mounted on the top of the first sliding seat, and the top sidewall of the vacuum chamber has several through holes; and An air pump is fixedly mounted on the first sliding seat, and the air pump is connected to the air extraction shell through a pipe.

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