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CN-224210756-U - Full-open screen plate

CN224210756UCN 224210756 UCN224210756 UCN 224210756UCN-224210756-U

Abstract

The utility model relates to the technical field of screen printing plates, and discloses a full-open screen printing plate which comprises a metal matrix, wherein the metal matrix is provided with a printing channel and a connecting bridge arranged in the printing channel. The utility model avoids the design of thinning concave bottom of the traditional screen printing connecting bridge by arranging the lower surface of the bottom shell of the connecting bridge and the printing contact surface of the metal matrix on the same plane, and simultaneously the connecting bridge adopts a tubular shell structure with a hollow inner cavity, and is formed by integrally electroforming and combining a first metal layer and a second metal layer, thereby solving the problems that the effective bearing section of the traditional connecting bridge is reduced and the situation that fatigue cracks are easy to occur in the bridge body, and the inner wall of the built-in runner is provided with flow guiding microstructures such as microprotrusions or micro grooves distributed along the flowing direction, and the like, and is also provided with a funnel-shaped flaring structure which is matched with the flaring structure, so that the slurry can be actively guided to flow, the flowing resistance of the slurry in a tunnel is reduced, and the trafficability of the slurry is improved.

Inventors

  • YUE HAO
  • ZHENG KAI
  • ZHOU QING

Assignees

  • 昆山乐邦精密科技有限公司

Dates

Publication Date
20260508
Application Date
20260407

Claims (10)

  1. 1. The full-opening screen printing plate comprises a metal substrate (1), wherein the metal substrate (1) is provided with a printing channel and a connecting bridge (4) arranged in the printing channel, and is characterized in that the connecting bridge (4) is of an arch structure and is of a tubular shell structure with a hollow inner cavity, the connecting bridge (4) comprises a top shell facing away from the surface of a printing stock and a bottom shell facing the surface of the printing stock, a built-in runner (5) independent of the printing channel is formed between the top shell and the bottom shell in a surrounding mode, and the built-in runner (5) is arranged in a penetrating mode along the length direction of the connecting bridge (4).
  2. 2. A full-open screen according to claim 1, wherein the bottom surface of the bottom housing is in the same plane as the contact surface of the metal substrate (1) facing the substrate.
  3. 3. The full-open screen plate according to claim 1, wherein the inner wall of the built-in runner (5) is provided with a flow guiding microstructure.
  4. 4. A full-open screen according to claim 3, characterized in that the flow-guiding microstructure comprises microprotrusions (6) or microchannels distributed in the flow direction.
  5. 5. A full-open screen according to claim 1, characterized in that the cross section of the connecting bridge (4) is closed ring-shaped or tubular-like.
  6. 6. A full aperture screen as claimed in claim 1, wherein the tubular housing structure is integrally electroformed from the first metal layer (2) and the second metal layer (3).
  7. 7. A full-open screen plate according to claim 1, wherein a funnel-shaped flaring structure is arranged at the inlet of the built-in runner (5).
  8. 8. A full-open screen according to claim 1, characterized in that the inlet and outlet of the built-in flow channels (5) extend through the longitudinal side walls of the connecting bridge (4), respectively, configured to allow the slurry to traverse from the inside of the bridge body.
  9. 9. A full-open screen according to claim 1, characterized in that the connecting bridge (4) consists of a top shell and a bottom shell which are connected in a sealing manner, between which a built-in flow channel (5) is enclosed, which is independent of the printing channel.
  10. 10. A full-open screen according to claim 1, characterized in that the connecting bridge (4) consists of a top pressure shell and a bottom flow shell which are sealingly connected.

Description

Full-open screen plate Technical Field The utility model relates to the technical field of screen printing plates, in particular to a full-open screen printing plate. Background ‌ Screen printing plate is a core tool for transferring ink or paint in the process, and the core principle is that the ink is only transmitted through the meshes of an image-text part and transferred to a printing object in a ‌ mesh screen printing ‌ mode to form required patterns or characters. However, the current screen plate thinning concave structure can only provide unidirectional material passing at the bottom, under large tension, the slurry flows in the concave area to easily generate turbulence, so that the ink discharging amount is unstable, the effective bearing section of the connecting bridge is reduced due to the bottom concave, fatigue cracks are easily generated on the bridge body under the extrusion of a high-frequency scraper, and meanwhile, the existing structure lacks active guiding of the slurry flow direction and cannot meet the permeation requirement of ultra-high viscosity slurry. Disclosure of utility model The utility model aims to provide a full-open screen plate, which solves the problems that the current thinning concave structure of the screen plate can only provide unidirectional material passing at the bottom, under large tension, the flow of slurry in a concave area is easy to generate turbulence, the ink discharging amount is unstable, the effective bearing section of a connecting bridge is reduced due to the bottom concave, fatigue cracks are easy to generate on a bridge body under the extrusion of a high-frequency scraper, and meanwhile, the existing structure lacks active guide on the flow direction of the slurry and cannot meet the permeation requirement of ultra-high viscosity slurry. In order to solve the technical problems, the utility model is realized by the following technical scheme: The utility model relates to a full-open screen printing plate which comprises a metal matrix, wherein the metal matrix is provided with a printing channel and a connecting bridge arranged in the printing channel, the connecting bridge is of a tubular shell structure with a hollow inner cavity, the connecting bridge comprises a top shell facing away from the surface of a printing stock and a bottom shell facing the surface of the printing stock, a built-in runner independent of the printing channel is formed between the top shell and the bottom shell in a surrounding mode, and the built-in runner is arranged in a penetrating mode along the length direction of the connecting bridge. Further, the bottom surface of the bottom shell and the contact surface of the metal substrate facing the printing object are located on the same plane. Further, the inner wall of the built-in runner is provided with a diversion microstructure. Further, the flow directing microstructure comprises micro-protrusions or micro-grooves distributed along the flow direction. Further, the cross section of the connecting bridge is in a closed ring shape or a tube-like shape. Further, the tubular housing construction is integrally electroformed from the first metal layer and the second metal layer. Further, a funnel-shaped flaring structure is arranged at the inlet of the built-in runner; Further, the inlet and the outlet of the built-in runner penetrate through the two longitudinal side walls of the connecting bridge respectively and are configured to allow the slurry to traverse from the inside of the bridge body; Further, the connecting bridge consists of a top shell and a bottom shell which are connected in a sealing way, and a built-in runner independent of the printing channel is formed between the top shell and the bottom shell in a surrounding way; Further, the connecting bridge is composed of a top bearing shell and a bottom guide shell which are connected in a sealing mode. The utility model has the following beneficial effects: The utility model avoids the design of the bottom thinning concave of the traditional screen printing connecting bridge by the fact that the lower surface of the bottom shell of the connecting bridge and the printing contact surface of the metal matrix are positioned on the same plane, and meanwhile, the connecting bridge adopts a tubular shell structure with a hollow inner cavity, and is formed by integrally electroforming and combining a first metal layer and a second metal layer, compared with the traditional single-layer thinning concave structure, the tubular shell structure has higher section moment of inertia, solves the problems of the traditional connecting bridge that the effective bearing section is reduced and the situation that the bridge body is easy to generate fatigue cracks, in addition, the built-in runner penetrates through along the length direction of the connecting bridge, the inlet and the outlet respectively penetrates through the two longitudinal side walls of the connecting bridg