CN-121424819-B - Printing device for vacuum bin

CN121424819BCN 121424819 BCN121424819 BCN 121424819BCN-121424819-B

Abstract

The invention belongs to the technical field of PCB manufacture, in particular to a printing device for a vacuum bin, aiming at the problem that when the printing device is closed, the movement of a closed bin door can disturb the air flow around the vacuum bin, so that external dust and fibers enter the vacuum bin to pollute the PCB and influence the printing quality. The printing device for the vacuum bin has the effect of improving the printing quality of the PCB, and can form a clean air curtain at the position of the printing closing opening when the printing bin is closed, so that dust and fibers in the outside air are effectively prevented from falling on the PCB or the printing screen during closing movement, the printing defect caused by pollution is obviously reduced, and the using effect of the device is improved.

Inventors

BAI WANLI
XIE HUI
Liao Jingcheng
LI ZHEXUAN

Assignees

深圳市泰科思特精密工业有限公司

Dates

Publication Date: 20260512
Application Date: 20251231

Claims (6)

1. A printing apparatus for a vacuum chamber, comprising: the printing device comprises a printing base (1), wherein a printing bin (2) is arranged on the printing base (1), and two printing closed ports (4) are formed in the printing bin (2); The deviation rectifying platform (9), the deviation rectifying platform (9) is arranged on the printing base (1), the deviation rectifying platform (9) is positioned in the printing bin (2), and the two sides of the deviation rectifying platform (9) are provided with PCB pressing plates (8); The four-axis lifting mechanism (6), the four-axis lifting mechanism (6) is arranged on the printing base (1), the printing scraper mechanism (7) is arranged on the four-axis lifting mechanism (6), and the printing scraper mechanism (7) is positioned above the deviation correcting platform (9) and the two PCB pressing plates (8); The two closed partition units (3), the closed partition units (3) are arranged on the printing bin (2), the closed partition units (3) comprise a partition gas bin (307) and a negative pressure gas bin (306), and gas flow ports (311) are formed in opposite sides of the partition gas bin (307) and the negative pressure gas bin (306); The printing preheating module (5), the printing preheating module (5) is arranged on the printing base (1), and the printing preheating module (5) comprises two heating power supplies (511) and a plurality of heating rods (510); the closed partition unit (3) further comprises: The two connecting pipes (303), the two connecting pipes (303) are arranged on the printing bin (2), the air blocking bin (307) is arranged at one end of the two connecting pipes (303), and the two connecting pipes (303) are provided with air flow pumps (302); the two filter element bearing frames (308), the two filter element bearing frames (308) are respectively arranged at the other ends of the two connecting pipes (303), and the two filter element bearing frames (308) are positioned outside the printing bin (2); the printing device comprises two conveying pipes (304), wherein the two conveying pipes (304) are arranged on a printing bin (2), a negative pressure air bin (306) is arranged at one end of the two conveying pipes (304), and a negative pressure pump (305) is arranged on the two conveying pipes (304); The flow receiving guide frame (310), the flow receiving guide frame (310) is arranged on the negative pressure air bin (306); The two mounting brackets (313) are arranged on the isolation gas bin (307), and the same mounting shaft lever (318) is arranged on the two mounting brackets (313); A tape inlet channel (312), the tape inlet channel (312) being arranged on the blocking air bin (307); The three fixing shaft rods (321), the three fixing shaft rods (321) are arranged on the air isolation bin (307), guide wheel rollers (323) are arranged on the two fixing shaft rods (321), and adjusting roller rollers (315) are arranged on the other fixing shaft rod (321) and the mounting shaft rod (318); the air port belt (316), the air port belt (316) is set up on two and adjusts the roll (315), offer a plurality of and adjust the air port (317) on the said air port belt (316), the air port belt (316) is passed and taken the channel (312), the outer wall of two guide pulley rollers (323) contacts with outer wall of the air port belt (316); The two telescopic pipe sections (324) are respectively arranged at the other ends of the two conveying pipes (304), filter element pressing frames (301) are arranged at one ends of the two telescopic pipe sections (324), and exhaust net frames (325) are arranged on the two filter element pressing frames (301); the two air inlet end pipes (326), the two air inlet end pipes (326) are respectively arranged on the two filter element bearing frames (308), and the two air inlet end pipes (326) are respectively communicated with the two connecting pipes (303); The two air filter elements (309), the two air filter elements (309) are respectively arranged on the two air inlet end pipes (326) and the two filter element bearing frames (308), and the two exhaust net frames (325) are respectively contacted with the tops of the two air filter elements (309); The two fixing pieces (327), the two fixing pieces (327) are respectively arranged on the two filter element bearing frames (308), the two fixing pieces (327) are respectively provided with an electric telescopic rod (328), and the output ends of the two electric telescopic rods (328) are respectively arranged on the two filter element pressing frames (301).
2. Printing device for vacuum chambers according to claim 1, characterized in that said closing and blocking unit (3) further comprises: the universal motor (314) is arranged on one of the mounting brackets (313), and an output shaft of the universal motor (314) is connected with one end of the mounting shaft rod (318) through a coupler; A coupling wheel (319), wherein the coupling wheel (319) is arranged at the other end of the mounting shaft lever (318); the driving wheel (322) is arranged at one end of one of the fixed shaft rods (321), and the driving wheel (322) and the linkage wheel (319) are provided with the same linkage belt (320).
3. A printing device for vacuum bins according to claim 1, characterized in that said printing doctor mechanism (7) comprises: two slide rail pieces (705), wherein a discharging component (704) is arranged on the two slide rail pieces (705), and a plurality of storage bins (703) are arranged on the discharging component (704); the two belt members (701), the two belt members (701) are respectively arranged on the two slide rail pieces (705), and the discharging member (704) is also provided with two scraper bodies (702); The reset motor (706), the reset motor (706) is set up on one of the slide rail pieces (705); and two buffer cylinders (707), wherein the two buffer cylinders (707) are positioned on one sides of the two slide rail members (705).
4. A printing device for vacuum chambers according to claim 1, characterized in that the printing pre-heating module (5) further comprises: The printing device comprises two electric rod pieces (501), wherein the two electric rod pieces (501) are arranged on a printing base (1), and the output ends of the two electric rod pieces (501) are provided with the same lower preheating plate frame (505); the two telescopic air pipes (506), the two telescopic air pipes (506) are respectively arranged on the lower preheating plate frame (505), and the two telescopic air pipes (506) are respectively provided with a communicating pipe (504).
5. A printing device for vacuum chambers according to claim 4, characterized in that the printing pre-heating module (5) further comprises: The communication bin (503), the communication bin (503) is arranged at one end of the two communication pipes (504), and the communication bin (503) is provided with an air pump body (502); And the upper preheating plate frame (507) is arranged on the two telescopic air pipes (506) and the two conveying pipes (304), and the two heating power supplies (511) are respectively arranged on the upper preheating plate frame (507) and the lower preheating plate frame (505).
6. A printing device for vacuum chambers according to claim 5, characterized in that the printing pre-heating module (5) further comprises: A plurality of connection heat pipes (512), wherein the plurality of connection heat pipes (512) are respectively arranged on the two heating power supplies (511), and the plurality of heating rods (510) are respectively arranged on the plurality of connection heat pipes (512); The two electric pushing rods (508), the two electric pushing rods (508) are arranged on the upper preheating plate frame (507), and the same separation plate frame (509) is arranged at the output ends of the two electric pushing rods (508).

Description

Printing device for vacuum bin Technical Field The invention relates to the technical field of PCB manufacture, in particular to a printing device for a vacuum bin. Background PCB, collectively referred to as printed circuit board, is a critical basic component in the electronics industry, and is formed with conductive copper traces on an insulating substrate through a predetermined circuit design for connecting and supporting various electronic components (e.g., chips, resistors, capacitors, etc.) to form a complete working circuit. Almost all electronic devices are kept away from the PCB and are therefore often referred to as "parent of electronic products". The PCB vacuum printing is an advanced printing technology which is used for manufacturing a printed circuit board with high precision and high quality and is mainly applied to a solder mask layer and a character printing link, and the PCB vacuum printing is an advanced printing technology which ensures that ink fills all concave areas on the surface of the PCB perfectly by eliminating air influence, so that the printed circuit board with high quality and high reliability is obtained. The existing PCB vacuum bin needs to be in a vacuum state when printing is carried out, and when the vacuum operation is carried out, the vacuum bin needs to be closed, when the vacuum bin is closed, the movement of the closed bin door can disturb the air flow around the vacuum bin, so that external dust and fibers enter the vacuum bin, and therefore pollution is caused to the PCB, and the printing quality is affected. Disclosure of Invention The invention discloses a printing device for a vacuum bin, and aims to solve the technical problems that when the printing device is closed in the background art, the movement of a closing bin door can disturb the air flow around the vacuum bin, so that external dust and fibers enter the vacuum bin, thereby polluting a PCB and affecting the printing quality. The invention provides a printing device for a vacuum bin, which comprises: The printing device comprises a printing base, wherein a printing bin is arranged on the printing base, and two printing closed openings are formed in the printing bin; the deviation rectifying platform is arranged on the printing base and is positioned in the printing bin, and PCB pressing plates are arranged on two sides of the deviation rectifying platform; the four-axis lifting mechanism is arranged on the printing base, a printing scraper mechanism is arranged on the four-axis lifting mechanism, and the printing scraper mechanism is positioned above the deviation correcting platform and the two PCB pressing plates; The two closed partition units are arranged on the printing bin and comprise a partition gas bin and a negative pressure gas bin, and gas flow ports are formed in the opposite sides of the partition gas bin and the negative pressure gas bin; The printing preheating module is arranged on the printing base and comprises two heating power supplies and a plurality of heating rods. In a preferred embodiment, the closed partition unit further includes: the two connecting pipes are arranged on the printing bin, the partition gas bin is arranged at one end of the two connecting pipes, and the two connecting pipes are provided with air flow pumps; The two filter element bearing frames are respectively arranged at the other ends of the two connecting pipes, and are positioned outside the printing bin; The two conveying pipes are arranged on the printing bin, the negative pressure air bin is arranged at one end of the two conveying pipes, and the two conveying pipes are provided with negative pressure pumps. In a preferred embodiment, the closed partition unit further includes: the flow receiving guide frame is arranged on the negative pressure air bin; the two mounting brackets are arranged on the isolation gas bin, and the same mounting shaft lever is arranged on the two mounting brackets; the tape inlet channel is arranged on the isolation air bin. In a preferred embodiment, the closed partition unit further includes: the three fixed shaft rods are arranged on the isolation air bin, guide wheel rollers are arranged on two of the fixed shaft rods, and adjusting roller rollers are arranged on the other fixed shaft rod and the mounting shaft rod; the air port belt is arranged on the two adjusting roller rolls, a plurality of adjusting air ports are formed in the air port belt, the air port belt penetrates through the air inlet channel, and the outer walls of the two guide wheel rollers are contacted with the outer walls of the air port belt; The universal motor is arranged on one of the mounting brackets, and an output shaft of the universal motor is connected with one end of the mounting shaft rod through a coupler. In a preferred embodiment, the closed partition unit further includes: the connecting wheel is arranged at the other end of the mounting shaft rod; the driving wheel is arranged at one