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CN-224224732-U - Full-open steel plate capable of reducing slurry flow and printing equipment

CN224224732UCN 224224732 UCN224224732 UCN 224224732UCN-224224732-U

Abstract

The utility model provides a full-open steel plate capable of reducing slurry flow, which comprises a first metal layer and a second metal layer which are mutually stacked, wherein a plurality of printing grooves for printing a whole fine grid are arranged on the first metal layer in parallel, the printing grooves extend along a printing direction, a plurality of printing channels and a plurality of speed limiting strips positioned on two sides of the extending direction of the printing channels are arranged on the second metal layer in parallel, each printing channel is corresponding to one printing groove, each printing channel comprises a plurality of slurry penetrating channels which are arranged at intervals along the extending direction, a reinforcing area which is positioned far from the printing grooves along the thickness direction, and a slurry storage area which is close to the printing grooves along the thickness direction, the speed limiting strips protrude from the surface of the second metal layer towards the direction far from the first metal layer, and the speed limiting strips and any position of the printing channels are arranged at intervals. The full-open steel plate and the printing equipment which can reduce the flow of the sizing agent can limit the flow rate of the sizing agent, thereby improving the thickness of a printing grid line.

Inventors

  • HU BINGFENG

Assignees

  • 焱阳新能源(苏州)有限公司

Dates

Publication Date
20260512
Application Date
20250627

Claims (10)

  1. 1. The full-open steel plate capable of reducing slurry flow is characterized by comprising a first metal layer and a second metal layer which are stacked mutually, wherein a plurality of printing notches for printing the whole fine grid are arranged on the first metal layer in parallel, the printing notches extend along the printing direction, a plurality of printing channels and a plurality of speed limiting strips positioned on two sides of the extending direction of the printing channels are arranged on the second metal layer in parallel, each printing channel is arranged corresponding to one printing notch, each printing channel comprises a plurality of slurry penetrating channels arranged at intervals along the extending direction, a reinforcing area which is far away from the printing notch along the thickness direction, and a slurry storage area which is close to the printing notch along the thickness direction, the speed limiting strips protrude from the surface of the second metal layer towards the direction far away from the first metal layer, and the speed limiting strips are arranged at intervals with any position of the printing channels.
  2. 2. The full-open steel plate according to claim 1, wherein the speed limiting strips are perpendicular to the extending direction of the printing channels.
  3. 3. The full-open steel plate of claim 1, wherein the speed limiting bars are disposed at an incline toward the printing direction near one end of the printing channel.
  4. 4. A full-open steel plate with reduced flow of paste according to claim 3, wherein the speed limiting bars are inclined at an angle of between 30 and 60 degrees in the printing direction.
  5. 5. The full-open steel plate capable of reducing flow of paste according to claim 1, wherein the inclination angle of the speed limiting strip in the printing direction is 45 degrees.
  6. 6. The full-open steel plate according to claim 1, wherein the distance between the speed limiting strip and the adjacent printing channel is 10-30 micrometers.
  7. 7. The full-open steel plate according to claim 1, wherein the distance between two adjacent speed limiting bars is 15-35 μm.
  8. 8. The full-open steel plate of claim 1, wherein the width of the rate-limiting bars is 6-15 microns.
  9. 9. The full-open steel plate according to claim 1, wherein the height of the rate-limiting bars perpendicular to the second metal layer is between 8 and 10 microns.
  10. 10. A printing apparatus comprising a frame, an ink supply mechanism, a pad printing mechanism, and a full-open steel plate according to any one of claims 1 to 9, wherein the full-open steel plate reduces the flow of paste.

Description

Full-open steel plate capable of reducing slurry flow and printing equipment Technical Field The utility model relates to the technical field of solar cell printing, in particular to a full-open steel plate capable of reducing slurry flow and printing equipment. Background The full-open steel plate is a novel metal plate in the solar cell printing technology, and an opening area of the full-open steel plate directly penetrates through a material to form a fully-open channel for printing conductive paste, so that a longer fine grid is formed on the surface of a cell at one time. In order to ensure the integrity of the layout, the full-open steel plate is provided with a notch at a local position corresponding to the fine grid, so that the fine grid printed once is provided with the notch, and the other steel plate is matched for secondary printing to complement the notch position, thereby completing the printing of the complete graph. In order to ensure strength, the prior art such as CN120096225A improves structural strength by providing two metal layers and a connecting bridge on the upper metal layer. However, when the printing machine is used by a user, the mill often makes the highest printing doctor speed, so that the slurry flow speed is too high, the slurry entering the channel is reduced due to the too high slurry flow speed, and finally, the thickness of the fine grid obtained by printing is insufficient. In view of this, there is a need for an improvement over existing full-open steel plates to address the above-described problems. Disclosure of utility model The utility model aims to provide a full-open steel plate capable of reducing slurry flow, so as to solve the problem of insufficient thickness of grid lines caused by high printing speed of the existing full-open steel plate. In order to achieve the above-mentioned object, the present utility model provides a full-open steel plate capable of reducing flow of paste, the full-open steel plate capable of reducing flow of paste includes a first metal layer and a second metal layer stacked on each other, the first metal layer is provided with a plurality of printing slots for printing an entire fine grid in parallel, the printing slots extend along a printing direction, the second metal layer is provided with a plurality of printing channels in parallel and a plurality of speed limiting strips located at two sides of the extending direction of the printing channels, each of the printing channels is disposed corresponding to one of the printing slots, the printing channels includes a plurality of paste-penetrating channels disposed at intervals along the extending direction, a paste-storing region located at a distance from the reinforcing region of the printing slots along a thickness direction and near the printing slots along the thickness direction, the speed limiting strips protrude from a surface of the second metal layer toward a direction away from the first metal layer, and the speed limiting strips are disposed at intervals with any position of the printing channels. As a further development of the utility model, the speed-limiting strip is perpendicular to the direction of extension of the printing channel. As a further improvement of the utility model, the end of the speed limiting strip close to the printing channel is inclined towards the printing direction. As a further development of the utility model, the inclination angle of the speed-limiting strip in the printing direction is between 30 and 60 degrees. As a further improvement of the utility model, the inclination angle of the speed limiting strip along the printing direction is 45 degrees. As a further improvement of the utility model, the distance between the speed limiting strip and the adjacent printing channel is 10-30 micrometers. As a further development of the utility model, the distance between two adjacent speed limiting bars is 15-35 micrometers. As a further development of the utility model, the width of the speed-limiting bars is 6-15 micrometers. As a further development of the utility model, the height of the speed-limiting strip perpendicular to the second metal layer is between 8 and 10 micrometers. The utility model also provides printing equipment which comprises a frame body, an ink supply mechanism, a pad printing mechanism and the full-open steel plate capable of reducing slurry flow. The full-opening steel plate and the printing equipment have the beneficial effects that the flow rate of the sizing agent can be limited by arranging the speed limiting strips on the two sides of the printing channel on the second metal layer, so that the thickness of the printing grid line is increased. Drawings The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the