CN-224224723-U - Screen printer

CN224224723UCN 224224723 UCN224224723 UCN 224224723UCN-224224723-U

Abstract

The application relates to a screen printer which comprises a printing mechanism and an auxiliary replacing mechanism, wherein the printing mechanism comprises a printing hanging frame and a scraping assembly arranged on the printing hanging frame, the auxiliary replacing mechanism comprises a fixing part, a connecting part and a recovery groove, the fixing part is detachably connected with the printing hanging frame, the recovery groove is positioned below the scraping assembly, one end of the connecting part is connected with the fixing part, and the other end of the connecting part is connected with the recovery groove. When the scraping plate of the printing mechanism is replaced, the recovery tank of the screen printer auxiliary replacing mechanism can recover dry paste or foreign matters adhered to the scraping plate and falling off from the bottom, so that the dry paste and the foreign matters are prevented from falling off on the printing screen below, the inner electrode paste during the next printing is prevented from being polluted, and the quality of MLCC products is improved.

Inventors

ZHANG JIE
JIANG MENGDA
LIN XIANJUN

Assignees

广东微容电子科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250604

Claims (9)

1. A screen printer, characterized by: Comprises a printing mechanism and an auxiliary replacing mechanism; the printing mechanism comprises a printing hanging frame and a scraping assembly arranged on the printing hanging frame; The auxiliary replacement mechanism comprises a fixing part, a connecting part and a recovery groove, wherein the fixing part is detachably connected with the printing hanging frame, the recovery groove is positioned below the scraping assembly, one end of the connecting part is connected with the fixing part, and the other end of the connecting part is connected with the recovery groove.
2. The screen printer of claim 1, wherein: The printing hanging frame is I-shaped, two sides of the printing hanging frame are provided with vertical plates, the middle of the printing hanging frame is provided with a transverse plate horizontally connected between the two vertical plates, the scraping assembly is arranged on the transverse plate, the fixing part, the connecting part and the recovery groove are all positioned between the two vertical plates, and the fixing part is detachably connected with the transverse plate.
3. The screen printer of claim 2, wherein: The scraping assembly comprises a scraping cylinder and a scraping frame which are connected with each other, the scraping cylinder is arranged above the transverse plate, the scraping frame is arranged below the transverse plate, and the scraping plate is arranged on the scraping frame; the two fixing parts are respectively detachably connected with the transverse plates at two sides of the scraping cylinder; the connecting parts comprise two corresponding connecting parts, one ends of the two connecting parts are connected with the corresponding fixing parts, and the other ends of the two connecting parts are connected with the recovery groove.
4. A screen printer as claimed in claim 2 or claim 3, wherein: The other end of the connecting part is connected to the rear side of the recovery groove, the fixing part comprises a horizontal fixing plate, the horizontal fixing plate is placed on the transverse plate, and the rear end of the horizontal fixing plate extends to be flush with the rear side of the recovery groove so that the connecting part is vertically arranged; The projection of the front end of the horizontal fixing plate in the vertical direction is positioned in the recovery groove, so that the projection of the gravity center of the whole auxiliary replacement mechanism in the vertical direction falls on the contact surface between the horizontal fixing plate and the transverse plate.
5. The screen printer of claim 4, wherein: The fixing part further comprises a vertical limiting plate, and the vertical limiting plate is arranged at the front end of the horizontal fixing plate and is vertically arranged downwards.
6. The screen printer of claim 4, wherein: The bottom of horizontal fixed plate is provided with the skid resistant course, the skid resistant course is used for increasing the frictional force between the bottom of horizontal fixed plate with the diaphragm surface.
7. A screen printer as claimed in claim 3, wherein: the recovery tank comprises a bottom plate and enclosed side plates, wherein the bottom plate is obliquely arranged, and the rear side of the bottom plate is higher than the front side of the bottom plate.
8. The screen printer of claim 7, wherein: The side plates comprise front side plates positioned on the front side of the bottom plate, two ends of each front side plate are detachably connected with the side plates on the left side and the right side, and the front side plates are rotatably connected with the front side of the bottom plate around the left axis direction and the right axis direction of the bottom plate.
9. The screen printer of claim 8, wherein: the fixing part, the connecting part and the recovery groove are made of stainless steel.

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 films 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 screen printer generally comprises a printing platform and a printing mechanism arranged above the printing platform, wherein a printing screen is arranged on the printing platform, and after the printing screen is covered on a ceramic membrane to be printed, the printing mechanism drives a scraping plate at the bottom of the printing screen to uniformly scrape the internal electrode paste into meshes of the printing screen in a horizontal movement mode. In the conventional art, when the squeegee is replaced, dry paste and foreign matters adhered to the squeegee may fall on the underlying printing screen, and at the next printing operation, the dry paste or the foreign matters are mixed into the internal electrode paste to contaminate the internal electrode paste, and the quality of the MLCC product is degraded. 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 application provides a screen printer, which comprises a printing mechanism and an auxiliary replacing mechanism; the printing mechanism comprises a printing hanging frame and a scraping assembly arranged on the printing hanging frame; The auxiliary replacement mechanism comprises a fixing part, a connecting part and a recovery groove, wherein the fixing part is detachably connected with the printing hanging frame, the recovery groove is positioned below the scraping assembly, one end of the connecting part is connected with the fixing part, and the other end of the connecting part is connected with the recovery groove. In one embodiment, the printing hanger is I-shaped, two sides of the printing hanger are provided with vertical plates, the middle of the printing hanger is provided with a transverse plate horizontally connected between the two vertical plates, the scraping assembly is arranged on the transverse plate, the fixing part, the connecting part and the recovery groove are all positioned between the two vertical plates, and the fixing part is detachably connected with the transverse plate. In one embodiment, the scraping assembly comprises a scraping cylinder and a scraping frame which are connected with each other, wherein the scraping cylinder is arranged above the transverse plate, the scraping frame is arranged below the transverse plate, and the scraping plate is arranged on the scraping frame; the two fixing parts are respectively detachably connected with the transverse plates at two sides of the scraping cylinder; the connecting parts comprise two corresponding connecting parts, one ends of the two connecting parts are connected with the corresponding fixing parts, and the other ends of the two connecting parts are connected with the recovery groove. In one embodiment, the other end of the connecting part is connected to the rear side of the recovery tank, the fixing part comprises a horizontal fixing plate, the horizontal fixing plate is placed on the transverse plate, and the rear end of the horizontal fixing plate extends to be level with the rear side of the recovery tank so that the connecting part is arranged vertically; The projection of the front end of the horizontal fixing plate in the vertical direction is positioned in the recovery groove, so that the projection of the gravity center of the whole auxiliary replacement mechanism in the vertical direction falls on the contact surface between the horizontal fixing plate and the transverse plate. In one embodiment, the fixing part further includes a vertical limiting plate provided at a front end of the horizontal fixing plate and vertically downward. In one embodiment, the bottom of the horizontal fixing plate is provided with an anti-slip layer for increasing friction between the bottom of the horizontal fixing plate and the surface of the cross plate. In one embodiment, the recovery tank includes a bottom plate and surrounding side plates, the bottom plate being disposed obliquely with its rear side higher than its front side. In one embodiment, the sid