CN115447261A

CN115447261A - Circuit board carbon oil screen printing device and process

Info

Publication number: CN115447261A
Application number: CN202210966942.XA
Authority: CN
Inventors: 邹利平
Original assignee: Dingnan Jiehao Circuit Technology Co ltd
Current assignee: Dingnan Jiehao Circuit Technology Co ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-12-09

Abstract

The invention discloses a circuit board carbon oil silk-screen printing device and process, and relates to the technical field of circuit board production. The carbon oil screen printing device and the process for the circuit board comprise a mounting seat, a painting frame, a screen mesh, a painting mechanism and a positioning mechanism, wherein the mounting seat comprises a bottom plate and a vertical plate, the vertical plate is fixedly mounted at the top of the bottom plate, and the painting frame is arranged on the front side of the vertical plate. This circuit board carbon oil silk screen printing device and technology, can make and scrape the top of seal in the silk screen twice with carbon oil, ensure that the scraping thickness of pattern communicates with each other, improve the carbon oil and dye the seal effect, can also conveniently take out the silk screen from between fixed frame and the mount, the clamping is changed to the silk screen of different figures to the convenience, be convenient for dye the seal to different figures, improve the portable degree of the device greatly, can also order about two stoppers and remove about, change distance and position between two stoppers, the convenience restricts the location to the silk screen, when scraping the seal to the top surface of silk screen, avoid the silk screen to appear rocking.

Description

Circuit board carbon oil screen printing device and process

Technical Field

The invention relates to the technical field of circuit board production, in particular to a circuit board carbon oil screen printing device and a circuit board carbon oil screen printing process.

Background

The screen printing method is that utilizing silk screen hole plate and seal material, obtain the method of figure through scraping printing, for other dyeing and printing modes, the shape and the area of stock are unrestricted, the plate making is comparatively convenient, the application has very strong flexibility, circuit board carbon oil silk screen printing on the existing market adopts artifical manual scraping more, long-time work can lead to the staff tired, and artifical manual scraping leads to the thickness of figure printing ink inhomogeneous very easily, still lead to the circuit board or the silk screen takes place to rock at the in-process of scraping printing easily, influence the scraping effect of circuit board, consequently. The invention discloses a carbon oil silk-screen printing device and a process for a circuit board.

Disclosure of Invention

The invention aims to solve at least one technical problem in the prior art, and provides a circuit board carbon oil screen printing device and a circuit board carbon oil screen printing process, which can solve the problems that scraping easily causes uneven thickness of pattern ink and the circuit board or a screen is easy to shake.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a circuit board carbon oil silk screen printing device, including the mount pad, scribble the frame, the silk screen with scribble mechanism and positioning mechanism of brushing, the mount pad includes bottom plate and riser, riser fixed mounting is in the top of bottom plate, it erects the front side of arranging the riser in to brush, it includes slide bar and scraper blade to scribble the frame, slide bar fixed mounting is in the top of scraper blade, the silk screen is located the bottom of scraper blade, the silk screen contacts with the scraper blade, scribble the mechanism and set up in the front side of riser, scribble the mechanism and include drive assembly and retouching subassembly, drive assembly includes the machine case, the tripod, including a motor, a rotating shaft, the back side of machine case is equipped with the opening, the other end of pivot runs through the opening and extends to the inside of machine case, the outer wall of hypodontia gear fixed mounting in the back side of pivot, mounting panel fixed mounting is in the inner wall of machine case, the rack fixed mounting is on the last of riser fixed mounting, the rack meshes with the hypodontia gear, can order about the slide bar with the scraper blade and carry out the reciprocal movement of scraping mechanism and be used for improving the carbon printing the effect of carbon oil printing in the mechanism of scraping.

Preferably, a spout A and two spout B have all been seted up to the front side of riser, and slidable mounting has slider A in the spout A, and slider A's front side fixed mounting has the lifter plate, and equal slidable mounting has slider B in two spout B, and two slider B all with the rear side outer wall fixed mounting of quick-witted case.

Preferably, the slide bar and the scraper blade evenly have two, and two equal slidable mounting of slide bar are in the top and the bottom of quick-witted case, and mounting panel and rack have two and be the symmetry and set up in the top and the bottom of lacking the tooth gear, and two slide bars are located the front side of trading the brush subassembly.

Preferably, the brush changing assembly comprises an electric push rod B, a connecting plate, a fixed shaft, a movable sleeve and movable rods, the electric push rod B is fixedly installed at the bottom of one of the installation plates, the connecting plate is fixedly installed at the free end of the electric push rod B, one side of the connecting plate is fixedly installed with the outer wall of one of the sliding rods, the fixed shaft is fixedly installed on the inner walls of the front side and the rear side of the case, the movable sleeve is rotatably installed on the outer wall of the fixed shaft, the movable rods are respectively slidably installed on two sides of the movable sleeve, one end of each of the two movable rods is respectively installed in a manner of being hinged to the adjacent side walls of the two sliding rods, in the process of moving the case left and right, the case can be controlled to contact with the silk screen by pressing the control button A and the control button B, carbon oil between the two scraper plates can be conveniently pushed left and right, the process of scraping is avoided, and the carbon oil is accumulated on two sides of the top.

Preferably, positioning mechanism includes the screw sleeve, the screw thread loop bar, the knob, movable block and stopper, movable groove has been seted up at the top of lifter plate, the screw thread sleeve rotates and installs on the lifter plate, screw thread sleeve's one side extends to movable groove's inboard, screw thread loop bar threaded mounting is in screw thread sleeve's one side, knob fixed mounting is in screw thread sleeve's opposite side outer wall, movable block slidable mounting is in movable groove, stopper fixed mounting is in movable block's top, one end of screw thread loop bar and one side fixed mounting of movable block, the screw thread sleeve, the screw thread loop bar, the knob, movable block and stopper all have two and are the symmetry setting, the circuit board has been placed at the top of lifter plate, the circuit board is located between two stoppers, the circuit board contacts with the stopper, can order to about two stoppers and remove, can change distance and position between two stoppers, conveniently restrict the location to the silk screen, when scraping the seal to the top surface of silk screen, avoid the silk screen to appear rocking, improve the scraping seal effect of scraper blade to the silk screen.

Preferably, the bottom and the top of silk screen are provided with fixed frame and mount respectively, fixed frame fixed mounting is in the front side of riser, the bottom of fixed frame contacts with the top of lifter plate, the bottom of silk screen contacts with the top of circuit board, four fixed orificess have been seted up on the mount, the inboard of four fixed orificess all is provided with the bolt, four bolts all with the top fixed mounting of fixed frame, the nut has four difference screw thread to install on four bolts, four nuts all contact with the top of mount, the silk screen contacts with fixed frame and mount, can conveniently take out the silk screen from between fixed frame and the mount, the clamping is changed to the silk screen of different figures to the convenience, be convenient for dye the seal to different figures, improve the portable degree of the device greatly.

Preferably, an electric push rod A is fixedly mounted at the top of the bottom plate, the free end of the electric push rod A is fixedly mounted at the bottom of the lifting plate, a control button A and a control button B are fixedly mounted on the front side of the vertical plate, the control button A is located on one side of the case, and the control button B is located on the other side of the case.

A carbon oil silk-screen printing process for a circuit board comprises the following steps:

flatly paving a silk screen on the top of a fixed frame, placing a fixed frame on the top of the fixed frame and the silk screen, twisting a nut through a handle, installing the nut on the outer side of a bolt in a threaded manner, further enabling the fixed frame and the fixed frame to clamp and fix the silk screen, placing a circuit board on the top of a lifting plate, enabling a threaded sleeve to rotate through the rotation of the knob through manual twisting of the knob, enabling a threaded sleeve rod, a movable block and a limiting block to move leftwards or rightwards through the rotation of the threaded sleeve, further enabling two limiting blocks to be located on two sides of the circuit board, limiting two sides of the circuit board, starting an electric push rod A through a remote controller, enabling a free end of the electric push rod A to push the lifting plate, enabling the circuit board on the top of the lifting plate to be in contact with the bottom of the silk screen, pouring a small amount of carbon oil into the top of the silk screen, enabling the carbon oil to be located between two scraping plates, and starting a motor, the output shaft of the motor drives the rotating shaft and the gear with missing teeth to rotate, the rack, the mounting plate, the case, the sliding rod and the scraper plate are driven to reciprocate left and right by the rotation of the gear with missing teeth, and the case can press the control button A and the control button B in the process of reciprocating left and right by the case, so that the control button A and the control button B can start the electric push rod B, the free end and the connecting plate of the electric push rod B can ascend and descend, the two scraper plates can reciprocate to move up and down along with the left and right movement of the case, the two scraper plates can alternately push ink, the ink is scraped and printed on the top of the circuit board, after the circuit board is dyed and printed back and forth twice, the electric push rod A is started, the free end of the electric push rod A drives the lifting plate to descend, and the circuit board can be taken out from the top of the lifting plate, placing the circuit board which is not subjected to dyeing printing on the top of the lifting plate for continuous dyeing printing, placing the circuit board subjected to dyeing printing in an airing room for airing for one day, smearing the nano coating on the surface of the aired circuit board, and then placing the circuit board smeared with the nano coating in the airing room for airing for one day.

Compared with the prior art, the invention has the beneficial effects that:

(1) This circuit board carbon oil silk screen printing device and technology uses through quick-witted case, tripod, motor, pivot, scarce tooth gear, mounting panel, rack and slider B's cooperation, can order about slide bar and scraper blade and carry out reciprocating motion about, can make the scraper blade promote about carbon oil, scrapes twice scraping of carbon oil and prints in the top of silk screen, ensures that the scraping thickness of pattern communicates with each other, improves carbon oil dyeing and printing effect.

(2) This circuit board carbon oil silk screen printing device and technology, through electric putter B, connecting plate, fixed axle, movable sleeve, movable rod, control button A and control button B's cooperation use, the in-process that removes about the machine case carries out can make the machine case through pressing control button A and control button B, can regulate and control two scraper blades and contact with the silk screen respectively, the carbon oil of convenient between two scraper blades is controlled and is promoted, avoids scraping the in-process of seal, make carbon oil pile up with the top both sides.

(3) This circuit board carbon oil silk screen printing device and technology uses through the cooperation of fixed frame, mount, nut and bolt, can conveniently take out the silk screen from between fixed frame and the mount, and the clamping is changed to the silk screen of different figures to the convenience, is convenient for dye and print different figures, improves the portable degree of the device greatly.

(4) This circuit board carbon oil silk screen printing device and technology uses through the cooperation of lifter plate, threaded sleeve, screw thread loop bar, knob and movable block, can order about two stoppers and remove about, can change distance and position between two stoppers, conveniently restricts the location to the silk screen, when scraping the seal to the top surface of silk screen, avoids the silk screen to appear rocking, improves the scraping seal effect of scraper blade to the silk screen.

Drawings

The invention is further illustrated with reference to the following figures and examples:

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is an enlarged view of the portion A of the present invention;

fig. 3 is a right side cross-sectional view of a riser of the invention.

Reference numerals: 1. a base plate; 2. a vertical plate; 3. a chassis; 4. a slide bar; 5. a squeegee; 6. a lifting plate; 7. a circuit board; 8. a screen mesh; 9. a threaded sleeve; 10. a threaded rod; 11. a knob; 12. a movable block; 13. a limiting block; 14. an electric push rod A; 15. a fixing frame; 16. a fixed mount; 17. a nut; 18. a bolt; 19. a tripod; 20. a motor; 21. a rotating shaft; 22. a gear with missing teeth; 23. mounting a plate; 24. a rack; 25. an electric push rod B; 26. a connecting plate; 27. a fixed shaft; 28. a movable sleeve; 29. a movable rod; 30. a slide block B; 31. a slide block A.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

Referring to fig. 1-3, the present invention provides a technical solution: a circuit board carbon oil silk-screen printing device comprises a mounting base, a painting frame, a silk screen 8, a painting mechanism and a positioning mechanism, wherein the mounting base comprises a bottom plate 1 and a vertical plate 2, the vertical plate 2 is fixedly arranged at the top of the bottom plate 1, the painting frame is arranged at the front side of the vertical plate 2 and comprises a sliding rod 4 and a scraper 5, the sliding rod 4 is fixedly arranged at the top of the scraper 5, the silk screen 8 is positioned at the bottom of the scraper 5, the silk screen 8 is in contact with the scraper 5, the painting mechanism is arranged at the front side of the vertical plate 2 and comprises a driving component and a brushing changing component, the driving component comprises a case 3, a tripod 19, a motor 20, a rotating shaft 21, a tooth-missing gear 22, a mounting plate 23 and a rack 24, the case 3 is positioned at the front side of the vertical plate 2, the tripod 19 is fixedly arranged at the outer wall of the rear side of the vertical plate 2, the motor 20 is fixedly arranged at the top of the tripod 19, the rotating shaft 21 is rotatably arranged on the vertical plate 2, the output shaft of motor 20 and the one end fixed mounting of pivot 21, the rear side of quick-witted case 3 is opened and is equipped with the opening, the other end of pivot 21 runs through the opening and extends to the inside of quick-witted case 3, lack tooth gear 22 fixed mounting in the outer wall of pivot 21, mounting panel 23 fixed mounting is in the rear side inner wall of quick-witted case 3, rack 24 fixed mounting is on mounting panel 23, rack 24 meshes with lack tooth gear 22 mutually, can order about slide bar 4 and scraper blade 5 to carry out reciprocating motion, can make scraper blade 5 promote about the carbon oil, scrape the printing on the top of silk screen 8 twice with the carbon oil, ensure that the scraping thickness of pattern communicates with each other, improve the carbon oil dyeing effect, trade the printing subassembly and be used for ordering about slide bar 4 and scraper blade 5 and go up and down the circuit board, positioning mechanism sets up in the below quick-witted case 3, positioning mechanism is used for spacing fixing the circuit board.

Further, a spout A and two spout B have all been seted up to riser 2's front side, and slidable mounting has slider A31 in the spout A, and slider A31's front side fixed mounting has lifter plate 6, and equal slidable mounting has slider B30 in two spout B, and two slider B30 all with quick-witted case 3's rear side outer wall fixed mounting.

Furthermore, there are two sliding rods 4 and two scraping plates 5, the two sliding rods 4 are slidably mounted at the top and the bottom of the case 3, the two mounting plates 23 and the two racks 24 are symmetrically arranged at the top and the bottom of the gear 22, and the two sliding rods 4 are located at the front side of the brush replacing assembly.

Still further, the brush changing assembly comprises an electric push rod B25, a connecting plate 26, a fixed shaft 27, a movable sleeve 28 and a movable rod 29, the electric push rod B25 is fixedly installed at the bottom of one of the installation plates 23, the connecting plate 26 is fixedly installed at the free end of the electric push rod B25, one side of the connecting plate 26 is fixedly installed with the outer wall of one of the sliding rods 4, the fixed shaft 27 is fixedly installed on the inner walls of the front side and the rear side of the case 3, the movable sleeve 28 is rotatably installed on the outer wall of the fixed shaft 27, two of the movable rods 29 are respectively installed at two sides of the movable sleeve 28 in a sliding manner, one end of each of the two movable rods 29 is respectively installed at the adjacent side walls of the two sliding rods 4 in a hinged manner, in the process of moving the case 3 left and right, the case 3 can be regulated and controlled to contact with the silk screen 8 by pressing the control button a and the control button B, so that carbon oil between the two scraping plates 5 can be conveniently pushed left and right, and avoid accumulating with two sides of the top of the silk screen 8 in the process of scraping.

Secondly, positioning mechanism includes threaded sleeve 9, threaded sleeve rod 10, knob 11, movable block 12 and stopper 13, movable groove has been seted up at the top of lifter plate 6, threaded sleeve 9 rotates and installs on lifter plate 6, one side of threaded sleeve 9 extends to the inboard in movable groove, threaded sleeve rod 10 threaded mounting is in one side of threaded sleeve 9, knob 11 fixed mounting is in the opposite side outer wall of threaded sleeve 9, movable block 12 slidable mounting is in movable groove, stopper 13 fixed mounting is in the top of movable block 12, the one end of threaded sleeve rod 10 and one side fixed mounting of movable block 12, threaded sleeve 9, threaded sleeve rod 10, knob 11, movable block 12 and stopper 13 all have two and be the symmetry setting, circuit board 7 has been placed at lifter plate 6's top, circuit board 7 is located between two stoppers 13, circuit board 7 contacts with stopper 13, can order to about two stoppers 13 and remove, can change distance and position between two stoppers 13, conveniently restrict the location silk screen 8, when scraping the seal to the top surface of silk screen 8, avoid silk screen 8 to appear rocking, improve scraping seal effect of scraper blade 5 to silk screen 8.

Secondly again, the bottom and the top of silk screen 8 are provided with fixed frame 15 and mount 16 respectively, fixed frame 15 fixed mounting is in the front side of riser 2, the bottom of fixed frame 15 contacts with the top of lifter plate 6, the bottom of silk screen 8 contacts with the top of circuit board 7, four fixed orificess have been seted up on the mount 16, the inboard of four fixed orificess all is provided with bolt 18, four bolt 18 all with the top fixed mounting of fixed frame 15, nut 17 has four difference screw thread installations on four bolt 18, four nut 17 all contact with the top of mount 16, silk screen 8 contacts with fixed frame 15 and mount 16, can conveniently take out silk screen 8 from between fixed frame 15 and the mount 16, the clamping is changed to the silk screen 8 of different figures to the convenience, be convenient for dye and print different figures, improve the portable degree of the device greatly.

Finally, an electric push rod A14 is fixedly mounted at the top of the bottom plate 1, the free end of the electric push rod A14 is fixedly mounted with the bottom of the lifting plate 6, a control button A and a control button B are fixedly mounted on the front side of the vertical plate 2, the control button A is located on one side of the case 3, and the control button B is located on the other side of the case 3.

A carbon oil silk-screen printing process for a circuit board comprises the following steps: the silk screen 8 is flatly laid on the top of the fixed frame 15, the fixed frame 16 is placed on the top of the fixed frame 15 and the silk screen 8, the nut 17 is twisted through the handle, the nut 17 is installed on the outer side of the bolt 18 in a threaded mode, the fixed frame 15 and the fixed frame 16 clamp and fix the silk screen 8, the circuit board 7 is placed on the top of the lifting plate 6, the threaded sleeve 9 is driven to rotate through rotation of the knob 11 through manual twisting of the knob 11, the threaded sleeve rod 10, the movable block 12 and the limiting block 13 are driven to move leftwards or rightwards through rotation of the threaded sleeve 9, the two limiting blocks 13 can be located on two sides of the circuit board 7 to limit two sides of the circuit board 7, the electric push rod A14 is started through the remote controller, the free end of the electric push rod A14 pushes the lifting plate 6, and the circuit board 7 on the top of the lifting plate 6 is in contact with the bottom of the silk screen 8, pouring a small amount of carbon oil into the top of the screen 8, and positioning the carbon oil between the two scrapers 5, starting the motor 20, wherein the output shaft of the motor 20 drives the rotating shaft 21 and the gear with missing teeth 22 to rotate, the rotation of the gear with missing teeth 22 drives the rack 24, the mounting plate 23, the case 3, the sliding rod 4 and the scrapers 5 to reciprocate left and right, because the case 3 can press the control button A and the control button B in the process of reciprocating left and right of the case 3, the control button A and the control button B can start the electric push rod B25, the free end of the electric push rod B25 and the connecting plate 26 can ascend and descend, so that the two scrapers 5 can reciprocate up and down along with the left and right movement of the case 3, and further the two scrapers 5 can alternately push ink to scrape the top of the circuit board 7, and after the circuit board 7 is dyed and printed back and forth twice, the electric push rod A14 is started, the free end of the electric push rod A14 drives the lifting plate 6 to descend, the circuit board 7 can be taken out from the top of the lifting plate 6, the circuit board 7 which is not subjected to dyeing printing is placed at the top of the lifting plate 6 to be subjected to continuous dyeing printing, the circuit board 7 subjected to dyeing printing is placed in an airing room to be aired for one day, the surface of the circuit board 7 to be aired is coated with the nano coating, and the circuit board 7 coated with the nano coating is placed in the airing room to be aired for one day.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The utility model provides a circuit board carbon oil silk screen printing device which characterized in that includes:

the mounting seat comprises a bottom plate (1) and a vertical plate (2), and the vertical plate (2) is fixedly mounted at the top of the bottom plate (1);

the brushing frame is arranged on the front side of the vertical plate (2) and comprises a sliding rod (4) and a scraper (5), and the sliding rod (4) is fixedly arranged on the top of the scraper (5);

the silk screen (8) is positioned at the bottom of the scraper (5), and the silk screen (8) is in contact with the scraper (5);

the painting mechanism is arranged on the front side of a vertical plate (2), the painting mechanism comprises a driving assembly and a brush changing assembly, the driving assembly comprises a case (3), a tripod (19), a motor (20), a rotating shaft (21), a tooth-missing gear (22), a mounting plate (23) and a rack (24), the case (3) is located on the front side of the vertical plate (2), the tripod (19) is fixedly mounted on the outer wall of the rear side of the vertical plate (2), the motor (20) is fixedly mounted at the top of the tripod (19), the rotating shaft (21) is rotatably mounted on the vertical plate (2), an output shaft of the motor (20) is fixedly mounted with one end of the rotating shaft (21), an opening is formed in the rear side of the case (3), the other end of the rotating shaft (21) penetrates through the opening and extends into the case (3), the tooth-missing gear (22) is fixedly mounted on the outer wall of the rotating shaft (21), the mounting plate (23) is fixedly mounted on the inner wall of the rear side of the case (3), the rack (24) is fixedly mounted on the mounting plate (23), the rack (24) is meshed with the tooth-missing gear (22), and the brush changing assembly is used for driving a lifting rod (4) and a lifting scraper (5);

and the positioning mechanism is arranged below the case (3) and is used for limiting and fixing the circuit board.

2. The circuit board carbon oil silk-screen printing device of claim 1, wherein: a spout A and two spout B have all been seted up to the front side of riser (2), and slidable mounting has slider A (31) in the spout A, and the front side fixed mounting of slider A (31) has lifter plate (6), and equal slidable mounting has slider B (30) in two spout B, and two slider B (30) all with the rear side outer wall fixed mounting of quick-witted case (3).

3. The circuit board carbon oil silk screen printing device of claim 2, characterized in that: slide bar (4) and scraper blade (5) evenly have two, and two equal slidable mounting in the top and the bottom of quick-witted case (3) of slide bar (4), mounting panel (23) and rack (24) have two and be the symmetry and set up in the top and the bottom of scarce tooth gear (22), and two slide bar (4) are located the front side of trading the brush subassembly.

4. The circuit board carbon oil silk-screen printing device of claim 3, wherein: the brush changing assembly comprises an electric push rod B (25), a connecting plate (26), a fixed shaft (27), a movable sleeve (28) and a movable rod (29), the electric push rod B (25) is fixedly installed at the bottom of one of the installation plates (23), the connecting plate (26) is fixedly installed at the free end of the electric push rod B (25), one side of the connecting plate (26) is fixedly installed on the outer wall of one of the sliding rods (4), the fixed shaft (27) is fixedly installed on the inner walls of the front side and the rear side of the case (3), the movable sleeve (28) is rotatably installed on the outer wall of the fixed shaft (27), the movable rod (29) is provided with two sides which are respectively slidably installed on the movable sleeve (28), and one end of each movable rod (29) is respectively installed on the adjacent side walls of the two sliding rods (4) in a hinged mode.

5. The circuit board carbon oil silk screen printing device of claim 4, characterized in that: positioning mechanism includes threaded sleeve (9), threaded sleeve pole (10), knob (11), movable block (12) and stopper (13), the activity groove has been seted up at the top of lifter plate (6), threaded sleeve (9) rotate and install on lifter plate (6), one side of threaded sleeve (9) extends to the inboard in activity groove, threaded sleeve pole (10) screw thread is installed in one side of threaded sleeve (9), knob (11) fixed mounting is in the opposite side outer wall of threaded sleeve (9), movable block (12) slidable mounting is in the activity inslot, stopper (13) fixed mounting is in the top of movable block (12), one end of threaded sleeve pole (10) and one side fixed mounting of movable block (12), threaded sleeve (9), threaded sleeve pole (10), knob (11), movable block (12) and stopper (13) all have two and are the symmetry setting, circuit board (7) have been placed at the top of lifter plate (6), circuit board (7) are located between two stopper (13), circuit board (7) contact with stopper (13).

6. The circuit board carbon oil silk screen printing device of claim 5, characterized in that: the bottom and the top of silk screen (8) are provided with fixed frame (15) and mount (16) respectively, fixed frame (15) fixed mounting is in the front side of riser (2), the bottom of fixed frame (15) contacts with the top of lifter plate (6), the bottom of silk screen (8) contacts with the top of circuit board (7), four fixed orificess have been seted up on mount (16), the inboard of four fixed orificess all is provided with bolt (18), four bolt (18) all with the top fixed mounting of fixed frame (15), nut (17) have four respectively screw thread to install on four bolt (18), four nut (17) all contact with the top of mount (16), silk screen (8) contact with fixed frame (15) and mount (16).

7. The circuit board carbon oil silk-screen printing device of claim 6, characterized in that: the top fixed mounting of bottom plate (1) has electric putter A (14), and the free end of electric putter A (14) and the bottom fixed mounting of lifter plate (6), the front side fixed mounting of riser (2) has control button A and control button B, and control button A is located one side of quick-witted case (3), and control button B is located the opposite side of quick-witted case (3).

8. A circuit board carbon oil silk-screen printing process is characterized by comprising the following steps:

s1, fixing a network: the silk screen (8) is laid on the top of the fixing frame (15), the fixing frame (16) is placed on the top of the fixing frame (15) and the silk screen (8), the nut (17) is twisted through a handle, the nut (17) is installed on the outer side of the bolt (18) in a threaded mode, and then the fixing frame (15) and the fixing frame (16) clamp and fix the silk screen (8);

s2, fixing the plate: the method comprises the steps that a circuit board (7) is placed at the top of a lifting plate (6), a knob (11) is manually turned, the rotation of the knob (11) drives a threaded sleeve (9) to rotate, the rotation of the threaded sleeve (9) drives a threaded sleeve rod (10), a movable block (12) and a limiting block (13) to move leftwards or rightwards, then the two limiting blocks (13) can be located on two sides of the circuit board (7) to limit two sides of the circuit board (7), an electric push rod A (14) is started through a remote controller, the free end of the electric push rod A (14) pushes the lifting plate (6), and the circuit board (7) at the top of the lifting plate (6) is in contact with the bottom of a silk screen (8);

s3, pouring oil: pouring a small amount of carbon oil into the top of the screen (8), and enabling the carbon oil to be located between the two scraping plates (5);

s4, printing and dyeing: the motor (20) is started, an output shaft of the motor (20) drives the rotating shaft (21) and the gear lacking gear (22) to rotate, the rotation of the gear lacking gear (22) drives the rack (24), the mounting plate (23), the case (3), the sliding rod (4) and the scraper (5) to reciprocate left and right, and the case (3) can press the control button A and the control button B in the process of reciprocating left and right of the case (3), so that the control button A and the control button B can start the electric push rod B (25), the free end of the electric push rod B (25) and the connecting plate (26) can ascend and descend, the two scrapers (5) can reciprocate up and down along with the left and right movement of the case (3), and the two scrapers (5) can alternately push ink to scrape the top of the circuit board (7);

s5, material changing: after the circuit board (7) of the S4 is subjected to twice dyeing and printing back and forth, starting the electric push rod A (14) to enable the free end of the electric push rod A (14) to drive the lifting plate (6) to descend, taking the circuit board (7) out of the top of the lifting plate (6), and placing the circuit board (7) which is not subjected to dyeing and printing on the top of the lifting plate (6) for continuous dyeing and printing;

s6, reinforcing: and (3) placing the printed circuit board (7) dyed in the S5 into a drying room to dry for one day, coating the nano coating on the surface of the dried circuit board (7), and then placing the circuit board (7) coated with the nano coating into the drying room to dry for one day.