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CN-224210754-U - Circuit board silk screen printing device

CN224210754UCN 224210754 UCN224210754 UCN 224210754UCN-224210754-U

Abstract

The utility model discloses a circuit board silk-screen printing device which comprises a workbench, a transmission assembly and a silk-screen printing mechanism, wherein the transmission assembly is arranged on the workbench and comprises a conveying roller and a first driving piece, the conveying roller is wound with a circuit board, and the first driving piece drives the conveying roller to rotate so as to transmit the circuit board. The screen printing mechanism is arranged on the workbench in a sliding manner and comprises a screen frame and a scraper component, the screen frame can cover a plurality of circuit boards on the workbench, the scraper component is arranged above the screen frame in a sliding manner, and the scraper component is used for pushing screen printing liquid to complete screen printing of the circuit boards. The first driving piece can drive the conveying roller to continuously convey the circuit board substrate towards the workbench, automatic feeding of the substrate is achieved, and silk screen printing is conducted on the circuit board substrate through the silk screen printing mechanism. The method has the advantages that manual operation is not needed, positioning deviation caused by repeated feeding is avoided, consistency and stability of pattern printing are guaranteed, and production efficiency is improved.

Inventors

  • TAN GANG

Assignees

  • 江门市联森电子科技有限公司

Dates

Publication Date
20260508
Application Date
20250630

Claims (10)

  1. 1. Circuit board silk screen printing device, its characterized in that includes: A work table (100); The conveying assembly (200) is arranged on the workbench (100) and comprises a conveying roller (210) and a first driving piece, the conveying roller (210) is wound with a circuit board, and the first driving piece drives the conveying roller (210) to rotate so as to convey the circuit board; The screen printing mechanism (300) is arranged on the workbench (100) in a sliding mode, the screen printing mechanism (300) comprises a screen frame (310) and a scraper component (320), the screen frame (310) can cover a plurality of circuit boards on the workbench (100), the scraper component (320) is arranged above the screen frame (310) in a sliding mode, and the scraper component (320) is used for pushing screen printing liquid to complete screen printing of the circuit boards.
  2. 2. The screen printing device of claim 1, wherein the screen printing mechanism (300) further comprises a lifting member (330) and a second driving member, the lifting member (330) is slidably arranged on the workbench (100), the screen frame (310) is fixedly connected to the lifting member (330), the scraper assembly (320) is slidably arranged on the lifting member (330), and the second driving member drives the lifting member (330) to move up and down relative to the workbench (100).
  3. 3. The screen printing device of claim 2, wherein the lifting member (330) is provided with a guide rail (331) along the length direction of the workbench (100), the scraper assembly (320) is slidably connected to the guide rail (331), and the scraper assembly (320) is connected with a third driving member, and the third driving member is used for driving the scraper assembly (320) to move along the guide rail (331).
  4. 4. The screen printing device of claim 3, wherein the scraper assembly (320) comprises a supporting frame (321) and a scraper (322), the supporting frame (321) is slidably arranged on the guide rail (331), and the scraper (322) is fixedly arranged on one side of the supporting frame (321) facing the workbench (100).
  5. 5. The screen printing device of the circuit board of claim 4, wherein two scrapers (322) are arranged, two telescopic members are movably connected with the supporting frame (321), and the two telescopic members respectively drive the two scrapers (322) to alternately stretch and retract.
  6. 6. The circuit board silk screen printing device according to claim 4 or 5, characterized in that the scraper (322) is obliquely arranged.
  7. 7. The circuit board silk screen printing device according to claim 1, characterized in that a feeding frame (110) is arranged on one side of the workbench (100) facing the conveying roller (210), the feeding frame (110) is flush with the workbench (100), and a plurality of guide rollers (120) are arranged inside the feeding frame (110).
  8. 8. The screen printing device of claim 7, wherein the guide roller (120) is provided with two limiting rings (130) at intervals along the axial direction, and the limiting rings (130) are used for limiting the circuit board to move along the axial direction of the guide roller (120).
  9. 9. The device of claim 1, wherein the transport assembly (200) comprises a collection mechanism (220), the collection mechanism (220) being disposed on the other side of the table (100), the collection mechanism (220) being configured to collect the circuit board.
  10. 10. The circuit board silk screen printing device according to claim 9, characterized in that the collecting mechanism (220) comprises a material winding roller (221) and a fourth driving piece, wherein the fourth driving piece is used for driving the material winding roller (221) to rotate and winding the circuit board.

Description

Circuit board silk screen printing device Technical Field The utility model relates to the technical field of circuit board processing, in particular to a circuit board screen printing device. Background Flexible circuit board silk screen printing is a key process for printing circuits, logos and protective layers on flexible, light and thin substrates. And the flexible circuit board is subjected to screen printing, and ink transfer is realized through the hollowed-out pattern of the screen. The screen plate consists of a silk screen, photoresist and a screen frame, after exposure and development, the meshes of a pattern area to be printed are transparent, and other areas are blocked by the photoresist. When in printing, the scraper pushes the ink to move on the surface of the screen plate at a specific angle and under pressure, the ink is precisely transferred to the flexible circuit board substrate below through the mesh holes under the action of the pressure, and thus, the needed circuit, mark or protective layer pattern is formed. In the related art, the silk screen printing still commonly adopts a manual feeding and plate-by-plate printing operation mode. Operators need to manually place the single circuit board substrate on a workbench, take down the circuit board substrate after the silk screen printing process is finished, and replace the next substrate to continue printing. Quality problems such as positioning deviation, pattern defects and the like are easily caused by manual operation errors in screen printing processing, and the improvement of production efficiency and yield is severely restricted. Disclosure of utility model The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the circuit board screen printing device which has the advantages of high production efficiency and stability. The circuit board silk screen printing device comprises: a work table; The conveying assembly is arranged on the workbench and comprises a conveying roller and a first driving piece, the conveying roller is wound with a circuit board, and the first driving piece drives the conveying roller to rotate so as to convey the circuit board; The screen printing mechanism is arranged on the workbench in a sliding manner and comprises a screen plate frame and a scraper component, the screen plate frame can cover a plurality of circuit boards on the workbench, the scraper component is arranged above the screen plate frame in a sliding manner, and the scraper component is used for pushing screen printing liquid to complete screen printing of the circuit boards. The circuit board silk-screen printing device has the advantages that the conveying roller is arranged on one side of the workbench, the circuit board substrate is wound on the conveying roller, the first driving piece can drive the conveying roller to continuously convey the circuit board substrate towards the workbench, automatic feeding of the substrate is achieved, and silk-screen printing is conducted on the circuit board substrate through the silk-screen printing mechanism. The method has the advantages that manual operation is not needed, positioning deviation caused by repeated feeding is avoided, consistency and stability of pattern printing are guaranteed, and production efficiency is improved. According to the circuit board silk-screen printing device, the silk-screen printing mechanism further comprises a lifting piece and a second driving piece, the lifting piece is arranged on the workbench in a sliding mode, the screen plate frame is fixedly connected with the lifting piece, the scraper component is arranged on the lifting piece in a sliding mode, and the second driving piece drives the lifting piece to lift and move relative to the workbench. According to the circuit board silk-screen printing device, the lifting piece is provided with a guide rail along the length direction of the workbench, the scraper component is connected with the guide rail in a sliding mode, and the scraper component is connected with a third driving piece which is used for driving the scraper component to move along the guide rail. According to some embodiments of the utility model, the scraper assembly comprises a supporting frame and a scraper, the supporting frame is slidably arranged on the guide rail, and the scraper is fixedly arranged on one side of the supporting frame facing the workbench. According to the circuit board silk screen printing device, two scrapers are arranged, the two telescopic pieces are movably connected with the supporting frame, and the two telescopic pieces respectively drive the two scrapers to alternately stretch. According to the circuit board silk screen printing device of some embodiments of the utility model, the scraper is obliquely arranged. According to the circuit board silk-screen printing device, a feeding frame is arranged on one side, facing the