丝网印刷设备
By designing a screen printing equipment with a slit-shaped ink outlet and a doctor blade, targeted ink output and uniform shaving pressure were achieved, solving the problem of low ink utilization in traditional screen printing, reducing waste and production costs, and improving printing quality and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZINERGY SHENZHEN LTD
- Filing Date
- 2025-09-16
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional screen printing methods suffer from low ink utilization and high ink loss, resulting in high printing costs and unstable printing quality.
The ink outlet of the coating head is designed as a slit-shaped opening, which uses the surface tension of the ink to stably store the ink. It is forced to be extruded onto the screen only when needed, and the doctor blade achieves point-to-point ink dispensing and uniform scraping. Combined with the ink return tank, excess ink is recovered, reducing waste.
It reduces ink consumption during the printing process, improves ink utilization and printing quality, ensures ink uniformity and stability, reduces production costs, and reduces environmental pollution.
Smart Images
Figure CN224510636U_ABST
Abstract
Claims
1. A screen printing apparatus characterized by comprising: include: The screen printing plate has through holes for forming electrode patterns; A coating head, disposed on one side of the screen, has an ink storage cavity and an ink outlet communicating with the ink storage cavity. The coating head is movable along a first direction and is configured to release ink to the screen when the ink outlet corresponds to the through hole. The ink outlet is a slit-shaped opening extending along a second direction, and the first direction intersects the second direction. as well as A squeegee, located on the same side of the screen as the coating head, is movable along the first direction to push the ink released by the coating head through the through-hole to form the electrode pattern on the substrate.
2. The screen printing apparatus of claim 1, wherein The through holes are provided in a plurality of ways, and the plurality of through holes form a hole group unit distributed at intervals in the second direction. The coating head is provided with a plurality of ink outlets at intervals along the second direction, and the plurality of ink outlets correspond one-to-one with the hole group unit in the first direction. And / or, the width of the ink outlet along the first direction is not less than the width of the through hole along the first direction.
3. The screen printing apparatus of claim 1, wherein The coating head includes an ink supply body and an ink outlet. The ink supply body has an ink storage cavity, and the ink outlet has an ink outlet. The ink outlet is detachably connected to the ink supply body.
4. The screen printing apparatus of claim 3, wherein The ink outlet includes a main ink supply slit and multiple diversion slits, with the multiple diversion slits spaced apart on both sides of the main ink supply slit along a first direction.
5. The screen printing apparatus of claim 1, wherein The screen is also provided with an ink return groove, which is located at one end of the screen in the first direction and extends along the second direction. The ink return groove is used to recover the ink pushed by the doctor blade.
6. The screen printing apparatus of claim 5, wherein An ink delivery pipeline is provided between the ink return tank and the ink storage chamber, and a delivery pump is provided on the ink delivery pipeline to pump the ink in the ink return tank to the ink storage chamber.
7. The screen printing apparatus of claim 1, wherein The screen has a first end and a second end opposite to each other in the first direction. The doctor blade is located on the side of the coating head near the first end and is connected to the coating head. When the coating head performs an ink supply stroke, the coating head drives the doctor blade to move from the first end to the second end, and the doctor blade performs ink scraping operation.
8. The screen printing apparatus of claim 1, wherein The screen has a first end and a second end opposite each other in a first direction, and the doctor blade is located on the side of the coating head closer to the second end; when the coating head performs an ink supply stroke, the coating head moves from the first end to the second end, and the doctor blade is in a standby state; when the doctor blade performs an ink scraping stroke, the doctor blade moves from the second end to the first end, and the coating head is in a standby state.
9. The screen printing apparatus of claim 1, wherein The screen has two scrapers, which are configured as a first scraper and a second scraper. The screen has a first end and a second end opposite to each other in the first direction. The first scraper is located on the side of the coating head near the first end and is connected to the coating head. The second scraper is located on the side of the coating head near the second end. When the coating head performs the ink supply stroke, the coating head drives the first doctor blade to move from the first end to the second end. The first doctor blade performs the ink scraping operation, and the second doctor blade is in standby mode. When the second doctor blade performs the ink scraping stroke, the second doctor blade moves from the second end to the first end, and the coating head and the first doctor blade are in a standby state.
10. The screen printing apparatus of any one of claims 1 to 9, wherein, The scraper includes a main body and two ink-blocking parts. The main body extends along the second direction, and the two ink-blocking parts are located at opposite ends of the main body and extend outwardly along the second direction toward the same side of the main body.