CN-224224730-U - Screen printer

CN224224730UCN 224224730 UCN224224730 UCN 224224730UCN-224224730-U

Abstract

The application relates to a screen printer which comprises a shell, a printing mechanism, a vacuumizing device and a pattern detection mechanism, wherein an exhaust opening is formed in the shell, the pattern detection mechanism is positioned behind a station of the printing mechanism and comprises a detection area for a membrane to pass through, a dust-proof piece for preventing dust from falling is arranged above the detection area, and the vacuumizing device comprises a vacuum pump and an air conduit, and the vacuum pump is connected with the exhaust opening through the air conduit. According to the application, the functional parts of the screen printer are arranged in the shell, the vacuumizing device is arranged to extract dust generated when each part of the screen printer in the shell runs, and the dust-proof piece is arranged on the pattern detection mechanism behind the station of the printing mechanism, so that the flowing dust caused by air flow is prevented from falling on the membrane which is still in a wet state after printing, and the quality of the printed membrane and the final MLCC product is improved.

Inventors

ZHANG JIE
JIANG MENGDA
ZHOU MOYUAN

Assignees

广东微容电子科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250604

Claims (10)

1. A screen printer, comprising: a shell, on which an exhaust port is arranged; A printing mechanism; The pattern detection mechanism is positioned behind the station of the printing mechanism and comprises a detection area for the membrane to pass through, and a dust-proof piece for preventing dust from falling is arranged above the detection area; The vacuumizing device comprises a vacuum pump and an air conduit, and the vacuum pump is connected with the air suction opening through the air conduit.
2. The screen printer of claim 1, wherein: The dustproof piece is a transparent partition board, graphic detection equipment is further arranged above the detection area, and the transparent partition board is arranged between the detection area and the graphic detection equipment.
3. The screen printer of claim 2, wherein: The pattern detection mechanism further comprises a mounting frame, and the pattern detection equipment is arranged on the mounting frame; The transparent partition plate is installed on the installation frame through the connecting component.
4. A screen printer as claimed in claim 3, wherein: The mounting frame comprises a front mounting frame and a rear mounting frame which are sequentially arranged along the advancing direction of the diaphragm, the front mounting frame and the rear mounting frame are respectively arranged across the left side and the right side of the diaphragm, the mounting frame also comprises a connecting beam which is arranged across the front mounting frame and the rear mounting frame, and the pattern detection equipment is arranged at the bottom of the connecting beam; The connecting assembly comprises a plurality of connecting pieces which are respectively arranged on the left side and the right side of the front mounting frame and the left side and the right side of the rear mounting frame, the connecting pieces are of a 匚 -shaped structure, the upper ends of the connecting pieces are fixed at the bottoms of the front mounting frame or the rear mounting frame through fasteners, and the lower ends of the connecting pieces are used for bearing the transparent partition plates.
5. The screen printer of claim 2, wherein: The detection area of the pattern detection mechanism and the diaphragm output area of the printing mechanism are positioned on the same horizontal plane, and one end of the transparent partition plate extends to the upper part of the diaphragm output area of the printing mechanism.
6. The screen printer of claim 5, wherein: The drying mechanism is arranged behind the station of the pattern detection mechanism and is used for drying the printed pattern on the membrane; The diaphragm input area of the drying mechanism and the detection area of the pattern detection mechanism are positioned on the same horizontal plane, and the other end of the transparent partition plate extends to the upper part of the diaphragm input area of the drying mechanism.
7. The screen printer of claim 2, wherein: The transparent partition board is a glass plate.
8. The screen printer of claim 1, wherein: The front air suction roller is positioned in front of a station of the printing mechanism and is used for conveying the membrane; The surface of the front air suction roller is provided with an air suction hole, and the inside of the front air suction roller is provided with an air suction channel connected with the air suction hole.
9. The screen printer of claim 8, wherein: The device comprises a pattern detection mechanism, a drying mechanism, a rear air suction roller, a film printing mechanism and a film printing mechanism, wherein the pattern detection mechanism is arranged at the front end of the film printing mechanism; The surface of back induced draft roller is provided with the induced draft hole, the inside of back induced draft roller is provided with the induced draft way of being connected with this induced draft hole.
10. The screen printer of claim 1, wherein: The printing mechanism and the pattern detection mechanism are both arranged on the main frame.

Description

Screen printer Technical Field The application relates to the technical field of MLCC printing, in particular to a screen printer. Background MLCC (Multi-LAYERS CERAMIC Capacitor), a multilayer ceramic Capacitor, also known as multilayer Capacitor, laminated Capacitor, etc., is one of the most widely used capacitors. The MLCC is formed by laminating ceramic dielectric film sheets printed with electrodes (inner electrodes) in a staggered mode, forming a ceramic block body through high-temperature sintering, and sealing metal layers (outer electrodes) at two ends of the ceramic block body. The internal electrode printing process of the MLCC is usually screen printing, that is, the internal electrode paste is printed onto the ceramic membrane by a printing screen, and the clear and complete dielectric membrane is obtained after drying. The MLCC is prone to forming fine dust inside the printer during screen printing due to the internal structural movement of the printing mechanism, and there is a risk of falling onto the printed film at any time. And the membrane is in a wet state after being printed, so that foreign matters are more easily adhered to the product. Disclosure of utility model In view of this, it is necessary to provide a screen printer capable of solving the above-described technical problems. The above object of the present application is achieved by the following technical solutions: The present application provides a screen printer comprising: a shell, on which an exhaust port is arranged; A printing mechanism; The pattern detection mechanism is positioned behind the station of the printing mechanism and comprises a detection area for the membrane to pass through, and a dust-proof piece for preventing dust from falling is arranged above the detection area; The vacuumizing device comprises a vacuum pump and an air conduit, and the vacuum pump is connected with the air suction opening through the air conduit. In one embodiment, the dust-proof member is a transparent partition plate, and a pattern detection device is further disposed above the detection area, and the transparent partition plate is disposed between the detection area and the pattern detection device. In one embodiment, the pattern detection mechanism further comprises a mounting frame, and the pattern detection device is arranged on the mounting frame; The transparent partition plate is installed on the installation frame through the connecting component. In one embodiment, the mounting frame comprises a front mounting frame and a rear mounting frame which are sequentially arranged along the advancing direction of the diaphragm, the front mounting frame and the rear mounting frame are respectively arranged across the left side and the right side of the diaphragm, the mounting frame further comprises a connecting beam which spans between the front mounting frame and the rear mounting frame, and the pattern detection equipment is arranged at the bottom of the connecting beam; The connecting assembly comprises a plurality of connecting pieces which are respectively arranged on the left side and the right side of the front mounting frame and the left side and the right side of the rear mounting frame, the connecting pieces are of a 匚 -shaped structure, the upper ends of the connecting pieces are fixed at the bottoms of the front mounting frame or the rear mounting frame through fasteners, and the lower ends of the connecting pieces are used for bearing the transparent partition plates. In one embodiment, the detection area of the pattern detection mechanism is positioned on the same horizontal plane with the film output area of the printing mechanism, and one end of the transparent baffle extends to the upper part of the film output area of the printing mechanism. In one embodiment, the device further comprises a drying mechanism, wherein the drying mechanism is arranged behind the station of the pattern detection mechanism and is used for drying the printed pattern on the membrane; The diaphragm input area of the drying mechanism and the detection area of the pattern detection mechanism are positioned on the same horizontal plane, and the other end of the transparent partition plate extends to the upper part of the diaphragm input area of the drying mechanism. In one embodiment, the transparent barrier is a glass sheet. In one embodiment, the printing device further comprises a front air suction roller, wherein the front air suction roller is positioned in front of a station of the printing mechanism and is used for conveying the film; The surface of the front air suction roller is provided with an air suction hole, and the inside of the front air suction roller is provided with an air suction channel connected with the air suction hole. In one embodiment, the device further comprises a drying mechanism and a rear air suction roller, wherein the drying mechanism is arranged behind the station of the pattern detection mechanism, and