A circuit printing device and method for processing a solid-state drive PCB board

Abstract

The present invention discloses a circuit printing device and method for processing a printed circuit board (PCB) of a solid-state drive, belonging to the technical field of PCB printing. A circuit printing device and method for processing a PCB of a solid-state drive include a printing unit, a feeding unit, and a drying unit. A support shaft frame is arranged above the feeding unit, and a conveying wheel is arranged inside the support shaft frame. Among them, a PCB is arranged above the conveying wheel, and a dust-proof cover is arranged above the printing unit. To solve the problem that the existing PCB solder paste printing device needs to first apply the solder paste and then perform scraping printing during solder paste printing, but some paste will flow onto the surface of the PCB during paste application, and it is easy to overflow and flow along the edge during subsequent scraping. The structural design of a V-shaped scraper can achieve the synchronous operation of brushing, which can effectively prevent the solder paste from solidifying in the holes of the printing template or flowing onto the surface of the PCB in advance.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB board printing, and specifically to a circuit printing device and method for processing a solid-state drive PCB board. Background Art

[0002] The PCB board mainly provides stable and reliable physical support for key components such as the internal control chip of the hard disk, flash memory particles, and cache chips, to ensure their normal operation and long-term stability. At the same time, the layout design is a key part of the PCB board design. It needs to consider the connection and signal transmission between components. In the layout design, components such as the main control chip, flash memory particles, and cache chips need to be reasonably distributed on the PCB board to ensure the reliability and stability of signal transmission and power supply between them; at the same time, factors such as the distance and angle between components also need to be considered to ensure that they do not interfere with each other or cause signal interference during operation. After completing the layout design, it is necessary to use a solder paste device to perform the circuit printing operation according to the layout.

[0003] In the existing PCB board solder paste printing device, it is necessary to first apply the solder paste and then perform scraping printing during solder paste printing. However, during the paste application, some paste will flow onto the surface of the PCB board, and it is easy to overflow and flow over the edge during subsequent scraping. Summary of the Invention

[0004] The purpose of the present invention is to provide a circuit printing device and method for processing a solid-state drive PCB board. The structural design of the V-shaped scraper can realize the synchronous operation of brushing, which can effectively prevent the solder paste from solidifying in the holes of the printing template or flowing onto the surface of the PCB board in advance, and can solve the problems in the prior art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A circuit printing device for processing a solid-state drive PCB board, including a printing unit, a feeding unit, and a drying unit. A support shaft frame is arranged above the feeding unit, and a conveying wheel is arranged inside the support shaft frame. Among them, a PCB board is arranged above the conveying wheel, a dust-proof cover is arranged above the printing unit, a wind box is arranged above the drying unit, and a heat flow blower is arranged on the top of the wind box. Among them, exhaust windows are arranged at both ends of the wind box. The printing unit includes a tooling table board and a printing component, and both the printing component and the tooling table board are installed inside the dust-proof cover.

[0006] Furthermore, transmission connecting rods are provided at both ends of the tooling table, the transmission connecting rods are rotatably connected to the tooling table, the transmission connecting rods are rotatably connected to each other through elastic conveyor belts, a lifting connecting rod is provided on the inner side of the transmission connecting rod, the lifting connecting rod is connected to the transmission connecting rod through an elastic conveyor belt, a support plate is provided below the lifting connecting rod, and the lifting connecting rod is rotatably connected to the support plate.

[0007] Furthermore, two pneumatic components are provided under the support plate, and the support plate is connected to the tooling table through the pneumatic components, wherein the pneumatic components are configured as a retractable structure, and a guide sleeve is provided in the middle section of the elastic conveyor belt, and the guide sleeve is connected to the tooling table through bolts, wherein the elastic conveyor belt is connected to the guide sleeve through a slide groove, and positioning components are provided around the guide sleeve.

[0008] Furthermore, the printing assembly is located on one side of the tooling table, and the printing assembly includes a truss and a slide, wherein the slide is slidably connected to the truss, arms are provided at both ends of the truss, the arms are connected to the truss by bolts, a lifting assembly is provided at the front end of the arm, and a template frame is provided at the bottom of the lifting assembly.

[0009] Furthermore, a locking frame is provided on the inner side of the template frame, and a printing template is provided between the locking frames, wherein the printing template and the locking frame are connected via a card slot, a pressure rod is provided above the locking frame, the pressure rod extends to the surfaces on both sides of the printing template, and a rotatable detection probe rod is provided on one side of the template frame.

[0010] Furthermore, a hydraulic assembly is provided at one end of the slide, and guide rods are provided on both sides of the hydraulic assembly, wherein one end of the guide rod is telescopically connected to the slide through the hydraulic assembly, and the other end of the guide rod extends to the bottom of the slide and is connected to the adapter lock plate, and a knife shaft is provided at the bottom of the adapter lock plate, and the knife shafts are connected to each other by bolts.

[0011] Furthermore, a tool holder is provided on one side below the slide, the tool holder is connected to the tool shaft by bolts, two hose interfaces are provided on the surface of one side of the tool holder, a cleaning scraper is provided at the bottom of the tool holder, the cleaning scraper includes a wide-diameter tool head and a positioning hole, wherein a V-shaped scraper is provided on one side of the cleaning scraper, a paste flow chamber is provided between the V-shaped scraper and the tool holder, the hydraulic component controls the tool holder to descend to the back of the printing template, a V-shaped scraper and a cleaning scraper are installed inside the tool holder, wherein the cleaning scraper is a fixed structure, and the V-shaped scraper can be telescopically controlled, the V-shaped scraper will be longer than the cleaning scraper when extended, and will be shorter than the cleaning scraper when retracted, when the V-shaped scraper completes the printing operation of solder paste, the excess solder paste on the back of the printing template can be scraped and cleaned by the wide-diameter tool head at the bottom of the cleaning scraper.

[0012] Further, a flow connection groove is provided on the surface of one side of the V-shaped squeegee, and a printing cutter head is provided at the front end of the other side of the V-shaped squeegee. Among them, a flow channel is provided inside the V-shaped squeegee, one end of the flow channel communicates with the flow connection groove, and the other end of the flow channel extends to the surface of the printing cutter head. A sliding abutting block is provided between the V-shaped squeegee and the cleaning squeegee, and the sliding abutting block is connected to the V-shaped squeegee through a spring. Solder paste enters the corresponding flow channel from the flow connection groove, and the ball valve core at the bottom of the printing cutter head will contract after being affected by pressure when contacting the printing template.

[0013] Further, a ball valve core is provided at the opening of the flow channel and the printing cutter head, and a separating shaft is provided above the ball valve core. Among them, the separating shaft and the V-shaped squeegee are set as an integral structure, a sealing spring is provided inside the separating shaft, and the ball valve core is telescopically connected to the separating shaft through the sealing spring. After contraction, a gap will appear between the ball valve core and the flow channel, and the solder paste flows to the back of the printing template through the gap. Subsequently, the printing cutter head is driven by the carriage to move from one end of the printing template to the other end, so that the solder paste can be printed on the back of the printing template by the printing cutter head while applying the paste.

[0014] A printing method for a circuit printing device used in the processing of a solid-state drive PCB board includes the following steps:

[0015] Step 1: Place the PCB board on the conveying wheel, move it above the tooling table board through the feeding unit, detect the moving position of the PCB board through the positioning component, and after moving to the specified position, the pneumatic component controls the lifting link to rise;

[0016] Step 2: The lifting component then controls the printing template to descend so that the printing template fits the surface of the PCB board. During the process, the detection probe turns downward to correct and position the PCB board, and the hydraulic component controls the tool rest to descend to the back of the printing template, and the solder paste is pumped into the flow paste cavity through the hose. At this time, the V-shaped squeegee extends under the action of pressure;

[0017] Step 3: Under the influence of pressure, the solder paste enters the corresponding flow channel from the flow connection groove, and the ball valve core at the bottom of the printing cutter head contracts after contacting the printing template. At this time, the solder paste flows to the back of the printing template from the gap between the ball valve core and the flow channel;

[0018] Step 4: The carriage drives the printing cutter head to move from one end of the printing template to the other end. During the process, the printing cutter head fills the solder paste flowing out from the hole groove on the back of the printing template onto the surface of the PCB board. After stopping the injection of the solder paste, the V-shaped squeegee rebounds and resets, and the ball valve core blocks the flow channel, so that the cleaning squeegee contacts the printing template for cleaning operation.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In the present invention, solder paste enters the corresponding flow channel from the flow connection groove. The ball valve core at the bottom of the printing tool head will contract under the influence of pressure after contacting the printing template. After contraction, a gap will appear between the ball valve core and the flow channel. The solder paste flows through the gap to the back of the printing template. Subsequently, the printing tool head is driven by the carriage to move from one end of the printing template to the other end. In this way, the solder paste can be printed on the back of the printing template by using the printing tool head while applying the paste. The structural design of the V-shaped squeegee can achieve the synchronous brushing operation, effectively avoiding the solidification of the solder paste flowing into the internal holes of the printing template or the premature flow of the solder paste onto the surface of the PCB board;

[0021] 2. In the present invention, after the injection of the solder paste stops, the V-shaped squeegee rebounds and resets under the influence of the external pressure. After the V-shaped squeegee rises, the ball valve core will also separate from the back of the template, and the sealing spring will push out the ball valve core to block the flow channel again to prevent the solder paste from flowing out;

[0022] 3. In the present invention, the hydraulic component controls the tool holder to descend to the back of the printing template. Inside the tool holder, a V-shaped squeegee and a cleaning squeegee are installed. Among them, the cleaning squeegee is a fixed structure, while the V-shaped squeegee can be controlled to expand and contract. When the V-shaped squeegee extends, it will be longer than the cleaning squeegee, and when it retracts, it will be shorter than the cleaning squeegee. After the V-shaped squeegee completes the solder paste printing operation, the excess solder paste on the back of the printing template can be scraped and cleaned by the wide-diameter tool head at the bottom of the cleaning squeegee. Description of the Drawings

[0023] Figure 1 It is the overall front view of the present invention;

[0024] Figure 2 It is the structural schematic diagram of the feeding unit of the present invention;

[0025] Figure 3 It is the structural schematic diagram of the drying unit of the present invention;

[0026] Figure 4 It is the structural schematic diagram of the elastic conveyor belt of the present invention;

[0027] Figure 5 It is the structural schematic diagram of the printing component of the present invention;

[0028] Figure 6 It is the structural schematic diagram of the carriage of the present invention;

[0029] Figure 7 It is the structural schematic diagram of the cleaning squeegee of the present invention;

[0030] Figure 8 It is the sectional structural schematic diagram of the V-shaped squeegee of the present invention;

[0031] Figure 9 It is Figure 8 The enlarged structural schematic diagram at A of

[0032] In the figure: 1, printing unit; 2, feeding unit; 3, drying unit; 4, PCB board; 5, printing assembly; 101, dust cover; 102, tooling table board; 103, transmission connecting rod; 104, guide sleeve; 105, elastic conveyor belt; 106, lifting connecting rod; 107, pneumatic assembly; 1041, positioning assembly; 1061, pallet; 201, support shaft frame; 202, conveying wheel; 301, air box; 302, hot air blower; 303, exhaust window; 501, truss; 502, carriage; 503, template frame; 504, detection probe; 505, tool rest; 506, cleaning scraper; 507, V-shaped scraper; 508, printing template; 5011, arm rod; 5012, lifting assembly; 5021, hydraulic assembly; 5022, guide rod; 5023, adapter lock plate; 5024, tool shaft; 5031, pressing rod; 5032, lock frame; 5051, hose interface; 5052, paste cavity; 5061, wide-diameter tool head; 5062, positioning hole; 5071, flow connection groove; 5072, printing tool head; 5073, flow channel; 5074, ball valve core; 5075, spacer shaft; 5076, sealing spring; 5077, sliding abutting block. Detailed implementation manner

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

[0034] In order to solve the problem that in the existing PCB board solder paste printing device, it is necessary to first apply solder paste and then scrape and print during solder paste printing. However, during paste application, part of the paste will flow onto the surface of the PCB board, and it is easy to overflow and flow out during subsequent scraping. Please refer to Figures 1-9 , the following technical solutions are provided in this embodiment:

[0035] A circuit printing device for the processing of a solid-state drive PCB board, comprising a printing unit 1, a feeding unit 2 and a drying unit 3. Above the feeding unit 2, there is a support shaft frame 201, and inside the support shaft frame 201, there is a conveying wheel 202. Among them, above the conveying wheel 202, there is a PCB board 4. Above the printing unit 1, there is a dust-proof cover 101. Above the drying unit 3, there is an air box 301. At the top of the air box 301, there is a heat flow blower 302. Among them, exhaust windows 303 are provided at both ends of the air box 301. The printing unit 1 includes a tooling table board 102 and a printing assembly 5. The printing assembly 5 and the tooling table board 102 are both installed inside the dust-proof cover 101. The PCB board is conveyed into the printing unit 1 by the feeding unit 2 for printing processing. After the printing processing is completed, it enters the drying unit 3 through the conveying mechanism. The solder joints are dried by the drying unit 3, waiting for the subsequent re-inspection procedure;

[0036] At both ends of the tooling table board 102, there are transmission connecting rods 103. The transmission connecting rods 103 are rotatably connected to the tooling table board 102. The transmission connecting rods 103 are rotatably connected by an elastic conveyor belt 105. Inside the transmission connecting rods 103, there are lifting connecting rods 106. The lifting connecting rods 106 are connected to the transmission connecting rods 103 by the elastic conveyor belt 105. Below the lifting connecting rods 106, there is a support plate 1061. The lifting connecting rods 106 are rotatably connected to the support plate 1061. Below the support plate 1061, there are two pneumatic components 107. The support plate 1061 is connected to the tooling table board 102 through the pneumatic components 107. Among them, the pneumatic components 107 are set as retractable structures. In the middle section of the elastic conveyor belt 105, there is a guide sleeve 104. The guide sleeve 104 is connected to the tooling table board 102 by bolts. Among them, the elastic conveyor belt 105 is connected to the guide sleeve 104 through a sliding groove. Positioning components 1041 are provided around the guide sleeve 104. Place the PCB board on the conveying wheel 202, move it above the tooling table board 102 through the feeding unit 2, detect the moving position of the PCB board through the positioning components 1041, and after moving to the designated position, the pneumatic components 107 control the lifting connecting rods 106 to rise;

[0037] Refer to Figure 5, the printing assembly 5 is located on one side of the tooling table 102, and the printing assembly 5 includes a truss 501 and a slide 502, wherein the slide 502 is slidably connected to the truss 501, and both ends of the truss 501 are provided with arm rods 5011, and the arm rods 5011 are connected to the truss 501 by bolts, and a lifting assembly 5012 is provided at the front end of the arm rod 5011, and a template frame 503 is provided at the bottom of the lifting assembly 5012, and a locking frame 5032 is provided on the inner side of the template frame 503, and a printing template 508 is provided between the locking frames 5032, wherein the printing template 508 is connected to the locking frame 5032 by a card slot, and a pressure rod 5031 is provided above the locking frame 5032, and the pressure rod 5031 extends to the surfaces on both sides of the printing template 508, and a rotatable detection probe rod 504 is provided on one side of the template frame 503;

[0038] In this embodiment, the printing template 508 is installed inside the locking frame 5032, and the template is locked and fixed by the pressure rod 5031 above the locking frame 5032. Then, the template frame 503 is controlled by the lifting components 5012 on both sides to drive the printing template 508 to descend, so that the printing template 508 is attached to the surface of the PCB board. During the process, the detection probe rod 504 is turned downward to correct the positioning of the PCB board.

[0039] See also Figures 6-7 A hydraulic assembly 5021 is provided at one end of the slide 502, and guide rods 5022 are provided on both sides of the hydraulic assembly 5021, wherein one end of the guide rod 5022 is telescopically connected to the slide 502 through the hydraulic assembly 5021, and the other end of the guide rod 5022 extends to the bottom of the slide 502 and is connected to the adapter lock plate 5023, and a knife shaft 5024 is provided at the bottom of the adapter lock plate 5023, and the knife shaft 5024 is connected to the knife shaft 5024 by bolts, and a knife shaft 5024 is provided on one side below the slide 502. The tool holder 505 is connected to the tool shaft 5024 by bolts. Two hose interfaces 5051 are arranged on the surface of one side of the tool holder 505. The hose interfaces 5051 are connected to the tank body storing solder paste by hoses. When in use, the solder paste is injected into the tool holder 505 by the pump body. A cleaning scraper 506 is arranged at the bottom of the tool holder 505. The cleaning scraper 506 includes a wide-diameter blade head 5061 and a positioning hole 5062. A V-shaped scraper 507 is arranged on one side of the cleaning scraper 506.

[0040] In this embodiment, the hydraulic component 5021 controls the tool rest 505 to descend to the back of the printing template 508. Inside the tool rest 505, a V-shaped squeegee 507 and a cleaning squeegee 506 are installed. Among them, the cleaning squeegee 506 is a retention structure, while the V-shaped squeegee 507 can be telescopically controlled. When the V-shaped squeegee 507 extends, it will be longer than the cleaning squeegee 506, and when it retracts, it will be shorter than the cleaning squeegee 506. After the V-shaped squeegee 507 completes the solder paste printing operation, the excess solder paste on the back of the printing template 508 can be scraped and cleaned by the wide-diameter cutter head 5061 at the bottom of the cleaning squeegee 506;

[0041] Refer to Figures 8-9 , a paste flow cavity 5052 is provided between the V-shaped squeegee 507 and the tool rest 505. A flow connection groove 5071 is provided on one side surface of the V-shaped squeegee 507. The solder paste inside the paste flow cavity 5052 is shunted into the corresponding flow channels 5073 through the flow connection groove 5071. A printing cutter head 5072 is provided at the front end of the other side of the V-shaped squeegee 507. Among them, a flow channel 5073 is provided inside the V-shaped squeegee 507. One end of the flow channel 5073 communicates with the flow connection groove 5071, and the other end of the flow channel 5073 extends to the surface of the printing cutter head 5072. A sliding abutting block 5077 is provided between the V-shaped squeegee 507 and the cleaning squeegee 506. The sliding abutting block 5077 is connected to the V-shaped squeegee 507 by a spring. The cleaning squeegee 506 can slide down along the inclined surface of the sliding abutting block 5077. A ball valve core 5074 is provided at the opening of the flow channel 5073 and the printing cutter head 5072. A spacer shaft 5075 is provided above the ball valve core 5074. Among them, the spacer shaft 5075 and the V-shaped squeegee 507 are set as an integral structure. A sealing spring 5076 is provided inside the spacer shaft 5075. The ball valve core 5074 is telescopically connected to the spacer shaft 5075 through the sealing spring 5076;

[0042] In this embodiment, solder paste is pumped into the paste flow chamber 5052 through a hose. After the solder paste is injected, it will exert pressure on the V-shaped squeegee 507, and under the action of the pressure, the V-shaped squeegee 507 extends downward. At this time, the printing tool head 5072 at the bottom of the V-shaped squeegee 507 will be longer than the wide-diameter tool head 5061. The solder paste enters the corresponding flow channel 5073 from the flow connection groove 5071. The ball valve core 5074 at the bottom of the printing tool head 5072 will contract after contacting the printing template 508 under the influence of pressure. After contraction, a gap will appear between the ball valve core 5074 and the flow channel 5073. The solder paste flows to the back of the printing template 508 through the gap. Subsequently, the carriage 502 drives the printing tool head 5072 to move from one end of the printing template 508 to the other end. In this way, while applying the paste, the solder paste can be printed on the back of the printing template 508 by using the printing tool head 5072. This can effectively prevent the solder paste from flowing into the internal holes of the printing template 508 and solidifying, or the solder paste flowing onto the surface of the PCB board in advance. After stopping the injection of the solder paste, the V-shaped squeegee 507 rebounds and resets under the influence of the external pressure. After the V-shaped squeegee 507 rises, the ball valve core 5074 will also separate from the back of the template, and the sealing spring 5076 will push out the ball valve core 5074 to block the flow channel 5073 again to prevent the solder paste from flowing out.

[0043] Working principle: Place the PCB board on the conveying wheel 202, move it above the tooling table board 102 through the feeding unit 2, detect the moving position of the PCB board through the positioning component 1041. After moving to the specified position, the pneumatic component 107 controls the lifting connecting rod 106 to rise, and the lifting component 5012 controls the printing template 508 to descend, so that the printing template 508 fits the surface of the PCB board. During the process, the detection probe 504 turns downward to correct and position the PCB board. The hydraulic component 5021 controls the tool holder 505 to descend to the back of the printing template 508. Solder paste is pumped into the paste flow chamber 5052 through a hose. At this time, the V-shaped squeegee 507 extends under the action of pressure. The solder paste enters the corresponding flow channel 5073 from the flow connection groove 5071 under the influence of pressure. The ball valve core 5074 at the bottom of the printing tool head 5072 contracts after contacting the printing template 508. At this time, the solder paste flows to the back of the printing template 508 from the gap between the ball valve core 5074 and the flow channel 5073. The carriage 502 drives the printing tool head 5072 to move from one end of the printing template 508 to the other end. During the process, the printing tool head 5072 fills the solder paste flowing out into the holes on the back of the printing template 508 onto the surface of the PCB board. After stopping the injection of the solder paste, the V-shaped squeegee 507 rebounds and resets, and the ball valve core 5074 blocks the flow channel 5073, so that the cleaning squeegee 506 contacts the printing template 508 for cleaning operation.

[0044] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0045] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A circuit printing device for PCB processing based on a solid-state drive, characterized in that, It includes a printing unit (1), a feeding unit (2) and a drying unit (3). Above the feeding unit (2), there is a support shaft frame (201). Inside the support shaft frame (201), there is a conveying wheel (202). Among them, above the conveying wheel (202), there is a PCB (4). Above the printing unit (1), there is a dust cover (101). Above the drying unit (3), there is an air box (301). At the top of the air box (301), there is a heat flow fan (302). Among them, exhaust windows (303) are provided at both ends of the air box (301). The printing unit (1) includes a tooling table board (102) and a printing assembly (5). The printing assembly (5) and the tooling table board (102) are both installed inside the dust cover (101); The printing assembly (5) includes a truss (501) and a carriage (502). At one end of the carriage (502), there is a hydraulic assembly (5021). On both sides of the hydraulic assembly (5021), there are guide rods (5022). Among them, one end of the guide rod (5022) is telescopically connected to the carriage (502) through the hydraulic assembly (5021), and the other end of the guide rod (5022) extends below the carriage (502) and is connected to a transfer lock plate (5023). At the bottom of the transfer lock plate (5023), there is a cutter shaft (5024). The transfer lock plate (5023) and the cutter shaft (5024) are connected by bolts; On one side of the cutter shaft (5024), there is a tool holder (505). The tool holder (505) and the cutter shaft (5024) are connected by bolts. On the surface of one side of the tool holder (505), there are two hose interfaces (5051). At the bottom of the tool holder (505), there is a cleaning scraper (506). The cleaning scraper (506) includes a wide-diameter cutter head (5061) and a positioning hole (5062). Among them, on one side of the cleaning scraper (506), there is a V-shaped scraper (507). Between the V-shaped scraper (507) and the tool holder (505), there is a paste flow cavity (5052); On the surface of one side of the V-shaped scraper (507), there is a flow connection groove (5071). At the front end of the other side of the V-shaped scraper (507), there is a printing cutter head (5072). Among them, inside the V-shaped scraper (507), there is a flow channel (5073). One end of the flow channel (5073) communicates with the flow connection groove (5071), and the other end of the flow channel (5073) extends to the surface of the printing cutter head (5072). Between the V-shaped scraper (507) and the cleaning scraper (506), there is a sliding abutting block (5077). The sliding abutting block (5077) and the V-shaped scraper (507) are connected by a spring; A ball valve core (5074) is arranged at the opening of the flow channel (5073) and the printing tool head (5072). A spacer shaft (5075) is arranged above the ball valve core (5074). Among them, the spacer shaft (5075) and the V-shaped scraper (507) are arranged as an integral structure. A sealing spring (5076) is arranged inside the spacer shaft (5075). The ball valve core (5074) is telescopically connected to the spacer shaft (5075) through the sealing spring (5076).

2. The circuit printing device for SSD PCB processing according to claim 1, wherein: Driving connecting rods (103) are arranged at both ends of the tooling table board (102). The driving connecting rods (103) are rotatably connected to the tooling table board (102). The driving connecting rods (103) are rotatably connected through an elastic conveyor belt (105). A lifting connecting rod (106) is arranged inside the driving connecting rods (103). The lifting connecting rod (106) is connected to the driving connecting rods (103) through the elastic conveyor belt (105). A support plate (1061) is arranged below the lifting connecting rod (106). The lifting connecting rod (106) is rotatably connected to the support plate (1061).

3. A circuit printing device for PCB processing of a solid-state drive according to claim 2, characterized in that: Two pneumatic components (107) are arranged below the support plate (1061). The support plate (1061) is connected to the tooling table board (102) through the pneumatic components (107). Among them, the pneumatic components (107) are arranged as a telescopic structure. A guide sleeve (104) is arranged in the middle section of the elastic conveyor belt (105). The guide sleeve (104) is connected to the tooling table board (102) through bolts. Among them, the elastic conveyor belt (105) is connected to the guide sleeve (104) through a chute. Positioning components (1041) are arranged around the guide sleeve (104).

4. A circuit printing device for PCB processing of a solid-state drive according to claim 3, characterized in that: The printing assembly (5) is located on one side of the tooling table board (102). Among them, the carriage (502) is slidably connected to the truss (501). Arm rods (5011) are arranged at both ends of the truss (501). The arm rods (5011) are connected to the truss (501) through bolts. A lifting assembly (5012) is arranged at the front end of the arm rod (5011). A template frame (503) is arranged at the bottom of the lifting assembly (5012).

5. A circuit printing device for PCB processing of a solid-state drive according to claim 4, characterized in that: A locking frame (5032) is arranged inside the template frame (503). A printing template (508) is arranged between the locking frames (5032). Among them, the printing template (508) is connected to the locking frame (5032) through a card slot. A pressing rod (5031) is arranged above the locking frame (5032). The pressing rod (5031) extends to the surfaces on both sides of the printing template (508). A rotatable detection probe (504) is arranged on one side of the template frame (503).

6. A printing method for a circuit printing device used in the processing of a solid-state drive PCB, which is implemented based on the circuit printing device for the processing of a solid-state drive PCB described in claim 5, and is characterized in that, It includes the following steps: Step 1: Place the PCB on the conveying wheel (202), move it above the tooling table board (102) through the feeding unit (2), detect the moving position of the PCB through the positioning component (1041), and after moving to the specified position, the pneumatic component (107) controls the lifting connecting rod (106) to rise; Step 2: The lifting component (5012) controls the printing template (508) to descend, so that the printing template (508) fits the surface of the PCB. During this process, the detection probe (504) turns downward to correct and position the PCB. The hydraulic component (5021) controls the tool holder (505) to descend to the back of the printing template (508), and solder paste is pumped into the paste flow chamber (5052) through a hose. At this time, the V-shaped squeegee (507) extends under the action of pressure; Step 3: The solder paste enters the corresponding flow channel (5073) from the flow connection groove (5071) under the influence of pressure. The ball valve core (5074) at the bottom of the printing tool head (5072) contracts after contacting the printing template (508). At this time, the solder paste flows from the gap between the ball valve core (5074) and the flow channel (5073) to the back of the printing template (508); Step 4: The carriage (502) drives the printing tool head (5072) to move from one end of the printing template (508) to the other end. During this process, the printing tool head (5072) fills the solder paste flowing out from the holes on the back of the printing template (508) onto the surface of the PCB. After stopping the injection of the solder paste, the V-shaped squeegee (507) rebounds and resets, and the ball valve core (5074) blocks the flow channel (5073), so that the cleaning squeegee (506) contacts the printing template (508) for cleaning operation.

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