Circuit board character digital screen printing machine

Abstract

The utility model discloses a circuit board character digital screen printing machine, and belongs to the field of circuit board processing. A circuit board character digital screen printing machine comprises a base and a guide rail fixedly connected to the top of the base. The silk-screen assembly is in transmission connection with the surface of the guide rail; scraping structures are arranged on the two sides of the screen printing assembly correspondingly, each scraping structure comprises connecting plates arranged on the two sides of the screen printing assembly, scrapers are installed on the outer sides of the connecting plates, transmission plates are fixedly connected to the inner sides of the connecting plates, limiting grooves are formed in the surfaces of the transmission plates, and bolts are arranged on the outer sides of the transmission plates. By arranging the scrapers capable of vertically moving, the height of the scrapers can be flexibly adjusted, meanwhile, reciprocating scraping operation can be achieved in the alternate using process of the two oppositely-arranged scrapers, the effect of improving the machining efficiency is achieved, and the problems that in the prior art, the reset moving distance of the scrapers is too long, and the scrapers are damaged are solved. And the ink spreading is influenced by the reverse scraper.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a circuit board character digital screen printer. Background Art

[0002] A digital silk screen printer, also known as a screen printer, is a device that prints ink or other printing media onto the surface of an object through a silk screen. Its working principle is to print ink on the holes in the silk screen, then press the silk screen onto the object to be printed, and use pressure to transfer the ink to the surface of the object. A digital silk screen printer consists of a host, a dryer, an exposure machine and other equipment. It can print colorful and effective images and texts. The characters on the surface of the circuit board need to be processed by a silk screen printer during the printing process.

[0003] For example, the patent application number disclosed on the China Patent Network is: 202210833956.4, and the patent name is: A dustproof device for a circuit board screen printing machine, comprising a screen printing machine body, a controller is arranged on the front of the screen printing machine body, a dust cover is bolted to the four sides of the screen printing machine body by bolts, and movable columns are bolted to both sides of the front of the dust cover, and the working part of the screen printing machine body can be dustproof through the action of the dust cover, the fixed frame and the dustproof glass, which greatly reduces the entry of dust into the circuit board screen printing machine when it is not in use, avoids the accumulation of a large amount of dust in the working part of the screen printing machine body, facilitates the user to clean it, and improves the surface cleaning effect of the circuit board screen printing machine, and provides a power source by setting an electric push rod, and cooperates with the first movable seat and the second movable seat to provide a support and limiting effect on the electric push rod, so that it is convenient for the user to open and close the fixed frame and the dustproof glass, and avoids manual opening and closing.

[0004] However, the existing circuit board screen printer mainly uses a single-sided scraper to evenly scrape the ink. The scraper needs to move back and forth to form the entire stroke. During the resetting movement of the scraper, the ink will be scraped off in the reverse direction, causing ink overflow. At the same time, the redundant resetting stroke will affect the processing efficiency of the screen printer. Utility Model Content

[0005] The utility model aims to solve the problem of too long resetting moving distance of the scraper in the prior art, and proposes a circuit board character digital screen printer.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A circuit board character digital screen printer, comprising a base,

[0008] A guide rail fixedly connected to the top of the base;

[0009] The transmission is connected to the silk screen component on the surface of the guide rail;

[0010] Scraping structures are provided on both sides of the silk-screen assembly, and the scraping structures include connecting plates arranged on both sides of the silk-screen assembly, a scraper is installed on the outer side of the connecting plate, a transmission plate is fixedly connected to the inner side of the connecting plate, a limiting groove is provided on the surface of the transmission plate, a bolt is provided on the outer side of the transmission plate, one end of the bolt close to the transmission plate passes through the limiting groove and extends to the interior of the silk-screen assembly, the silk-screen assembly is threadedly connected with the bolt, and a linkage structure is provided on the top of the silk-screen assembly, and the linkage structure can drive the two transmission plates to move toward each other.

[0011] As a preferred technical solution of the present application, the linkage structure includes a bracket fixedly connected to the top of the silk-screen printing assembly, the bracket is movably connected with an axle rod inside, the rear end of the axle rod passes through the bracket and extends to the back side of the bracket, the surface of the axle rod is fixedly connected with a sleeve plate located on the inner side of the bracket, the side of the sleeve plate away from the axle rod extends to both sides of the transmission plate respectively, the transmission plate is fixedly connected with a sliding rod inside, the side of the sliding rod away from the transmission plate extends to the inside of the sleeve plate, the sleeve plate and the sliding rod are slidably connected, and a transmission structure located on the back side of the bracket is provided on the top of the silk-screen printing assembly, and the transmission structure can drive the axle rod to swing.

[0012] As a preferred technical solution of the present application, the transmission structure includes a connecting frame fixedly connected to the top of the silk-screen printing assembly, a screw rod is movably connected to the interior of the connecting frame through a bearing, a screw sleeve is threadedly connected to the surface of the screw rod, a rocker arm is fixedly connected to the rear end of the shaft rod, a push rod is fixedly connected to the front side of the screw sleeve, the push rod extends from the side of the screw sleeve to the interior of the rocker arm, and the rocker arm and the push rod are slidably connected.

[0013] As a preferred technical solution of the present application, a guide bar is fixedly connected to the interior of the connection frame, and the guide bar extends to the interior of the screw sleeve from a side away from the connection frame, and the screw sleeve and the guide bar are slidably connected.

[0014] As a preferred technical solution of the present application, a transmission motor is fixedly connected to the left side of the connecting frame, the left end of the screw rod passes through the connecting frame and extends to the left side of the connecting frame, and the left end of the screw rod is fixedly connected to the output end of the transmission motor.

[0015] As a preferred technical solution of the present application, a baffle is fixedly connected to the back of the connecting frame, and a side of the baffle away from the connecting frame extends to the front of the rocker arm through the top of the connecting frame.

[0016] As a preferred technical solution of the present application, a rubber sleeve is provided on the surface of the push rod, the rubber sleeve extends to the inside of the rocker arm from a side away from the screw sleeve, the rocker arm and the rubber sleeve are slidably connected, and the rubber sleeve is elastic.

[0017] As a preferred technical solution of the present application, an adjustment plate is fixedly connected to the outer side of the scraper, and the adjustment plate extends to the top of the connecting plate away from the scraper. The top of the connecting plate is movably connected to an adjustment rod through a bearing, and the top of the adjustment rod passes through the adjustment plate and is threadedly connected to the adjustment plate.

[0018] As a preferred technical solution of the present application, spring plates are fixedly connected to the left and right sides of the bracket, and the side of the spring plate away from the bracket is in contact with the bottom of the sleeve plate, and the spring plate is elastic.

[0019] As a preferred technical solution of the present application, a support plate is fixedly connected to the bottom of the bracket, and the support plate extends to the back of the rocker arm from one side of the bracket. The support plate is sleeved on the surface of the shaft and movably connected to the shaft.

[0020] Compared with the prior art, the utility model provides a circuit board character digital screen printer, which has the following beneficial effects:

[0021] 1. The circuit board character digital screen printer can flexibly adjust the height of the scraper by setting a vertically movable scraper. At the same time, the two relatively arranged scrapers can realize reciprocating scraping operations during alternating use, thereby improving the processing efficiency and solving the problems in the prior art that the scraper resetting movement distance is too long and the reverse scraper will affect the ink spreading.

[0022] 2. The circuit board character digital screen printer, by setting a swingable sleeve plate to squeeze and support the transmission plates on both sides respectively, realizes the effect of making the scrapers on both sides move down reciprocatingly for scraping, saves the user the operation steps of adjusting the two scrapers separately and independently, and improves the linkage stability of the scrapers.

[0023] 3. The circuit board character digital screen printer drives the screw sleeve to move horizontally through the screw rod, and the screw sleeve drives the push rod to swing inside the swing rod, thereby achieving the effect of precise control of the rotation angle of the shaft rod. The swing angle of the sleeve can be pre-set to avoid excessive movement of the sleeve.

[0024] 4. The circuit board character digital screen printer limits the screw sleeve by setting a guide bar, thereby achieving the effect of limiting the screw sleeve and avoiding the screw sleeve from tilting during movement.

[0025] 5. The circuit board character digital screen printer realizes the effect of automatically driving the screw to rotate through the transmission motor, which can improve the automation function of the screen printing component and meet the processing needs of different environments.

[0026] 6. The circuit board character digital screen printer achieves the effect of improving the safety of the screen printing components by setting up baffles, reducing the contact area between the transmission structure and the external environment, and preventing users from being injured by the structure during movement.

[0027] 7. The circuit board character digital screen printer realizes the effect of protecting the push rod by setting the rubber sleeve, reducing the wear of the push rod and the swing rod during contact and friction, and reducing the impact of vibration on the push rod.

[0028] 8. The circuit board character digital screen printer can achieve the effect of fine-tuning the height of the scraper through the setting of the adjustment plate and the adjustment rod to meet the operation requirements of templates of different thicknesses.

[0029] 9. The circuit board character digital screen printer realizes the effect of supporting the plate by setting the spring plate, which can reduce the impact of vibration on the plate and improve the swing stability of the plate.

[0030] 10. The circuit board character digital screen printer realizes the effect of limiting the swing rod by setting the support plate, which can increase the contact area between the swing rod and the shaft rod to prevent the connection between the two from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure of the utility model;

[0032] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0033] Figure 3 It is a schematic diagram of the separation structure of the utility model;

[0034] Figure 4 It is a schematic diagram of the scraping structure of the utility model;

[0035] Figure 5 It is a schematic diagram of the linkage structure of the utility model;

[0036] Figure 6 It is a schematic diagram of the transmission structure of the utility model.

[0037] In the figure: 1. base; 2. guide rail; 3. silk screen assembly; 4. scraping structure; 5. connecting plate; 6. scraper; 7. transmission plate; 8. limit groove; 9. bolt; 10. linkage structure; 11. bracket; 12. shaft rod; 13. sleeve plate; 14. slide rod; 15. transmission structure; 16. connecting frame; 17. screw rod; 18. screw sleeve; 19. rocker arm; 20. push rod; 21. guide strip; 22. transmission motor; 23. baffle; 24. rubber sleeve; 25. adjustment plate; 26. adjustment rod; 27. spring plate; 28. support plate. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0039] Embodiment 1:

[0040] Reference Figure 1-6 , a circuit board character digital screen printer, comprising a base 1,

[0041] A guide rail 2 fixedly connected to the top of the base 1;

[0042] A silk screen component 3 is transmission-connected to the surface of the guide rail 2;

[0043] A scraping structure 4 is provided on both sides of the silk-screen component 3, and the scraping structure 4 includes a connecting plate 5 arranged on both sides of the silk-screen component 3, a scraper 6 is installed on the outer side of the connecting plate 5, and a transmission plate 7 is fixedly connected to the inner side of the connecting plate 5. A limiting groove 8 is provided on the surface of the transmission plate 7, and a bolt 9 is provided on the outer side of the transmission plate 7. The end of the bolt 9 close to the transmission plate 7 passes through the limiting groove 8 and extends to the inside of the silk-screen component 3. The silk-screen component 3 is threadedly connected with the bolt 9. A linkage structure 10 is provided on the top of the silk-screen component 3. The linkage structure 10 can drive the two transmission plates 7 to move toward each other. The linkage structure 10 includes a bracket 11 fixedly connected to the top of the silk-screen component 3, and the bracket 11 is movably connected to a shaft rod 12 inside. The rear end of the shaft rod 12 passes through the bracket 11 and extends to the bracket 11. On the back side, the surface of the shaft 12 is fixedly connected with a sleeve plate 13 located on the inner side of the bracket 11, and the side of the sleeve plate 13 away from the shaft 12 extends to the two sides of the transmission plate 7 respectively, and the interior of the transmission plate 7 is fixedly connected with a slide bar 14, and the side of the slide bar 14 away from the transmission plate 7 extends to the interior of the sleeve plate 13, and the sleeve plate 13 and the slide bar 14 are slidably connected. A transmission structure 15 located on the back side of the bracket 11 is provided on the top of the screen printing component 3, and the transmission structure 15 can drive the shaft 12 to swing. The transmission structure 15 includes a connecting frame 16 fixedly connected to the top of the screen printing component 3, and the interior of the connecting frame 16 is movably connected with a screw 17 through a bearing, and the surface of the screw 17 is threadedly connected with a screw sleeve 18, and the rear end of the shaft 12 is fixedly connected with a swing rod 19, and the front side of the screw sleeve 18 is fixedly connected with a push rod 19. Rod 20, the side of the push rod 20 away from the screw sleeve 18 extends to the inside of the swing rod 19, the swing rod 19 and the push rod 20 are slidably connected, the inside of the connecting frame 16 is fixedly connected with a guide bar 21, the side of the guide bar 21 away from the connecting frame 16 extends to the inside of the screw sleeve 18, the screw sleeve 18 and the guide bar 21 are slidably connected, the left side of the connecting frame 16 is fixedly connected with a transmission motor 22, the left end of the screw rod 17 passes through the connecting frame 16 and extends to the left side of the connecting frame 16, the left end of the screw rod 17 is fixedly connected to the output end of the transmission motor 22, the back of the connecting frame 16 is fixedly connected with a baffle 23, the side of the baffle 23 away from the connecting frame 16 extends to the front of the swing rod 19 through the top of the connecting frame 16, and the surface of the push rod 20 is provided with a rubber sleeve 24, and the rubber sleeve 24 is away from the screw sleeve 18 One side extends to the inside of the rocker 19, the rocker 19 and the rubber sleeve 24 are slidably connected, the rubber sleeve 24 is elastic, the outer side of the scraper 6 is fixedly connected with an adjusting plate 25, the side of the adjusting plate 25 away from the scraper 6 extends to the top of the connecting plate 5, the top of the connecting plate 5 is movably connected with an adjusting rod 26 through a bearing, the top of the adjusting rod 26 passes through the adjusting plate 25 and is threadedly connected to the adjusting plate 25, the left and right sides of the bracket 11 are fixedly connected with a spring plate 27, the side of the spring plate 27 away from the bracket 11 contacts the bottom of the sleeve plate 13, the spring plate 27 is elastic, the bottom of the bracket 11 is fixedly connected with a support plate 28, the side of the support plate 28 away from the bracket 11 extends to the back of the rocker 19, the support plate 28 is sleeved on the surface of the shaft 12 and is movably connected to the shaft 12.

[0044] Specifically, when the circuit board character digital screen printer is working / in use: first, the screen printing component 3 is guided horizontally by the transmission of the guide rail 2. During a single movement of the screen printing component 3, the scraper 6 on one side of the bottom contacts the template inside the screen printing component 3 and spreads the ink evenly. When the scraper 6 moves to the maximum stroke, the transmission motor 22 drives the screw 17 to rotate. The screw 17 uses the thread to push the screw sleeve 18 to move horizontally. During the movement of the screw sleeve 18, the push rod 20 is driven to slide inside the rocker 19. The rocker 19 is squeezed and uses the shaft 12 to drive the sleeve 13 to swing. The sleeve 13 changes its inclination angle and uses the slide bar 14 to support the single-spreading scraper 6, so that it moves upward through the slide bar 14 on the surface of the connecting plate 5, and the scraper 6 on the other side is squeezed downward by the downward pressure of the other end of the sleeve 13. When the bottom of the scraper 6 on the other side contacts the surface of the template inside the screen printing component 3, the scraping direction of the scraper 6 is adjusted, so that the screen printing component 3 can process the template during the reciprocating movement.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A circuit board character digital screen printer, comprising a base (1), A guide rail (2) fixedly connected to the top of the base (1); A silk screen component (3) is connected to the surface of the guide rail (2); It is characterized in that Both sides of the screen printing assembly (3) are provided with a scraping structure (4), the scraping structure (4) comprising connecting plates (5) arranged on both sides of the screen printing assembly (3), a scraper (6) being installed on the outer side of the connecting plate (5), a transmission plate (7) being fixedly connected to the inner side of the connecting plate (5), a limiting groove (8) being provided on the surface of the transmission plate (7), a bolt (9) being provided on the outer side of the transmission plate (7), an end of the bolt (9) close to the transmission plate (7) passing through the limiting groove (8) and extending into the interior of the screen printing assembly (3), the screen printing assembly (3) being threadedly connected to the bolt (9), and a linkage structure (10) being provided on the top of the screen printing assembly (3), the linkage structure (10) being capable of driving the two transmission plates (7) to move towards each other.

2. A circuit board character digital screen printer according to claim 1, characterized in that: The linkage structure (10) comprises a bracket (11) fixedly connected to the top of the screen printing assembly (3); a shaft (12) is movably connected inside the bracket (11); a rear end of the shaft (12) passes through the bracket (11) and extends to the back of the bracket (11); a sleeve (13) located inside the bracket (11) is fixedly connected to the surface of the shaft (12); a side of the sleeve (13) away from the shaft (12) extends to two sides of a transmission plate (7) respectively; a sliding rod (14) is fixedly connected inside the transmission plate (7); a side of the sliding rod (14) away from the transmission plate (7) extends to the inside of the sleeve (13); the sleeve (13) and the sliding rod (14) are slidably connected; a transmission structure (15) located on the back of the bracket (11) is provided on the top of the screen printing assembly (3); the transmission structure (15) can drive the shaft (12) to swing.

3. A circuit board character digital screen printer according to claim 2, characterized in that: The transmission structure (15) comprises a connection frame (16) fixedly connected to the top of the screen printing assembly (3); a screw rod (17) is movably connected to the interior of the connection frame (16) via a bearing; a screw sleeve (18) is threadedly connected to the surface of the screw rod (17); a swing rod (19) is fixedly connected to the rear end of the shaft rod (12); a push rod (20) is fixedly connected to the front of the screw sleeve (18); a side of the push rod (20) away from the screw sleeve (18) extends to the interior of the swing rod (19); and the swing rod (19) and the push rod (20) are slidably connected.

4. A circuit board character digital screen printer according to claim 3, characterized in that: A guide bar (21) is fixedly connected to the interior of the connection frame (16), and a side of the guide bar (21) away from the connection frame (16) extends to the interior of the screw sleeve (18), and the screw sleeve (18) and the guide bar (21) are slidably connected.

5. A circuit board character digital screen printer according to claim 3, characterized in that: The left side of the connection frame (16) is fixedly connected to a transmission motor (22); the left end of the screw rod (17) passes through the connection frame (16) and extends to the left side of the connection frame (16); the left end of the screw rod (17) is fixedly connected to the output end of the transmission motor (22).

6. A circuit board character digital screen printer according to claim 3, characterized in that: A baffle (23) is fixedly connected to the back of the connection frame (16), and a side of the baffle (23) away from the connection frame (16) extends through the top of the connection frame (16) to the front of the swing rod (19).

7. A circuit board character digital screen printer according to claim 3, characterized in that: A rubber sleeve (24) is sleeved on the surface of the push rod (20), and the rubber sleeve (24) extends from a side away from the screw sleeve (18) to the inside of the swing rod (19). The swing rod (19) and the rubber sleeve (24) are slidably connected, and the rubber sleeve (24) is elastic.

8. A circuit board character digital screen printer according to claim 1, characterized in that: An adjustment plate (25) is fixedly connected to the outer side of the scraper (6), and the adjustment plate (25) extends to the top of the connecting plate (5) on a side away from the scraper (6). The top of the connecting plate (5) is movably connected to an adjustment rod (26) via a bearing, and the top end of the adjustment rod (26) passes through the adjustment plate (25) and is threadedly connected to the adjustment plate (25).

9. A circuit board character digital screen printer according to claim 2, characterized in that: The left and right sides of the bracket (11) are both fixedly connected with spring plates (27), and the side of the spring plate (27) away from the bracket (11) contacts the bottom of the sleeve plate (13), and the spring plate (27) is elastic.

10. A circuit board character digital screen printer according to claim 3, characterized in that: A support plate (28) is fixedly connected to the bottom of the bracket (11), and the support plate (28) extends from a side of the bracket (11) to the back side of the swing rod (19). The support plate (28) is sleeved on the surface of the shaft rod (12) and is movably connected to the shaft rod (12).

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