CN217047890U - Solder paste screen printing component - Google Patents
Solder paste screen printing component Download PDFInfo
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- CN217047890U CN217047890U CN202220280200.7U CN202220280200U CN217047890U CN 217047890 U CN217047890 U CN 217047890U CN 202220280200 U CN202220280200 U CN 202220280200U CN 217047890 U CN217047890 U CN 217047890U
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- printing plate
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- solder paste
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Abstract
The utility model relates to a PCB printing otter board technical field especially relates to a tin cream screen printing subassembly, including printing plate and frame, the printing plate sets up the bottom of frame, the printing hole has been seted up on the printing plate, be provided with the strengthening rib on the frame, the strengthening rib sets up along the moving direction of scraper blade, the bottom of strengthening rib with the printing plate is connected, the surface covering of strengthening rib has the oxide film. The reinforcing rib comprises a solid reinforcing rib and two hollow reinforcing ribs, and the solid reinforcing rib is arranged in the middle of the two hollow reinforcing ribs. The utility model can effectively improve the overall strength of the printing plate by arranging the reinforcing ribs connected with the printing plate on the frame, so that the printing plate is not easy to deform; the oxide layer is added on the surface of the reinforcing rib, so that the wear resistance can be improved, and the service life is prolonged.
Description
Technical Field
The utility model relates to a PCB printing screen technical field especially relates to a tin cream screen printing subassembly.
Background
In KBJ packaged products, it is necessary to print solder paste on the KBJ foot island. When printing solder paste to KBJ foot rest, lithography apparatus and printing otter board need be adopted, place soldering tin on the otter board, and when lithography apparatus's scraper blade moved forward on printing otter board with certain speed and angle, produced certain pressure to solder paste, promoted solder paste and rolled before the scraper blade, pour into the trompil of printing otter board with solder paste.
The screen printing plate is easy to deform, short in service life and thick in solder paste in the actual production process, so that the welding air holes of finished products are large, the yield of the finished products is low, and the market demand of energy conservation and high efficiency cannot be met.
Disclosure of Invention
The utility model relates to a solve the yielding problem of screen printing plate among the prior art, the event provides a tin cream screen printing subassembly for this.
The utility model adopts the following technical scheme: the utility model provides a tin cream screen printing subassembly, includes printing plate and frame, the printing plate sets up the bottom of frame, the printing hole has been seted up on the printing plate, be provided with the strengthening rib on the frame, the strengthening rib sets up along the moving direction of scraper blade, the bottom of strengthening rib with the printing plate is connected, the surface covering of strengthening rib has the oxide film.
Further, the shape of the printing hole is rectangular.
Furthermore, the thickness range of the printing plate is 0.3-1 mm.
Further, the distance between the printing hole and the reinforcing rib is larger than 0.5 mm.
Furthermore, the frame is provided with a positioning hole.
Furthermore, the reinforcing ribs comprise a solid reinforcing rib and two hollow reinforcing ribs, and the solid reinforcing rib is arranged between the two hollow reinforcing ribs.
Further, the width of the two hollowed-out reinforcing ribs is larger than that of the solid reinforcing rib.
The utility model discloses a possess following beneficial effect: the reinforcing ribs connected with the printing plate are arranged on the frame, so that the overall strength of the printing plate can be effectively improved, and the printing plate is not easy to deform; through the oxide layer that adds on the surface of strengthening rib, can improve the wearability, improve life.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a top view of an embodiment of the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a cross-sectional view of an embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
In the embodiment of the present invention, fig. 1 is a schematic structural diagram provided according to the embodiment of the present invention. As shown in fig. 1, the utility model discloses a printing plate 5 and frame 1, printing plate 5 sets up the bottom of frame 1, printing hole 3 has been seted up on the printing plate 5, be provided with the strengthening rib on the frame 1, the strengthening rib sets up along the moving direction of scraper blade, the bottom of strengthening rib with printing plate 5 is connected, the surface covering of strengthening rib has the oxide film. The reinforcing rib can be made of aluminum alloy, the surface of the reinforcing rib is covered with a layer of oxide film through hard anodic oxidation treatment, the thickness of the oxide film is about 20 microns, the hardness of the reinforcing rib can reach HV400 at the moment, and the wear resistance of the reinforcing rib is remarkably improved.
The utility model can effectively improve the whole strength of the printing plate 5 by arranging the reinforcing rib connected with the printing plate 5 on the frame 1, so that the printing plate 5 is not easy to deform; the oxide layer is added on the surface of the reinforcing rib, so that the wear resistance can be improved, and the service life is prolonged.
In one embodiment of the present invention, the printing holes 3 are rectangular in shape. The printing holes 3 can be square or rectangular, the adjacent printing holes can be different in shape, and the distance between the adjacent printing holes can be set according to actual conditions. The traditional printing holes 3 are usually circular, the circular printing holes 3 can cause the rotation of the silicon wafer, and after the printing holes 3 are changed into the rectangular shape, the printing holes can be adapted to the shape of the silicon wafer, so that the consistency of solder paste and the silicon wafer during extension is ensured, and the rotation and air holes of the wafer are effectively reduced.
In an embodiment of the present invention, the thickness m of the printing plate 5 ranges from 0.3mm to 1 mm. Due to the arrangement of the reinforcing ribs, the thickness m of the printed board 5 can be reduced without affecting the strength of the printed board 5. Preferably, the thickness of the printing plate 5 is 0.3mm, and at this time, the thickness of the tin paste can be greatly reduced, and the welding air holes can be reduced.
In an embodiment of the present invention, the distance d from the printing hole 3 to the reinforcing rib is greater than or equal to 0.5 mm. Preferably, the distance d is chosen to be 0.5mm, in which case the printing plate 5 can greatly increase the brushing area.
In an embodiment of the present invention, the frame 1 is provided with positioning holes 4. The positioning holes 4 are used for positioning the whole frame 1, and in a specific case, the positioning holes 4 may be disposed around the frame 1 to fix the frame 1 when the frame is installed.
In an embodiment of the present invention, the reinforcing rib includes a solid reinforcing rib 21 and two hollow reinforcing ribs 22, and the solid reinforcing rib 21 is disposed in the middle of the two hollow reinforcing ribs 22. The bottom of fretwork strengthening rib 22 is provided with the recess, can reduce the quality of whole subassembly. Further, the widths of the two hollow reinforcing ribs 22 are larger than the width of the solid reinforcing rib 21, the hollow reinforcing ribs 22 on the two sides play a role in reinforcing and fixing the screen plate, and the solid reinforcing rib 21 in the middle exerts pressure on the foot rest under the printing plate 5 while playing a role in reinforcing and fixing, so that the foot rest is pressed. The screen plate is divided into 4 printing grooves by reinforcing ribs, and can adapt to the shape of a foot rest.
In an embodiment of the present invention, the wall thickness of the hollow reinforcing rib 22 is 0.5mm, and the distance between the bending part of the foot rest and the side wall of the hollow reinforcing rib 22 is 0.35 mm. By adopting the arrangement, the foot rest can be better adapted to the shape, and the damage to the foot rest is avoided.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to examples, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a tin cream screen printing subassembly, its characterized in that, includes printing plate (5) and frame (1), printing plate (5) set up the bottom of frame (1), printing hole (3) have been seted up on printing plate (5), be provided with the strengthening rib on frame (1), the strengthening rib sets up along the moving direction of scraper blade, the bottom of strengthening rib with printing plate (5) are connected, the surface covering of strengthening rib has the oxide film.
2. The solder paste screen printing assembly according to claim 1, wherein the reinforcing ribs comprise a solid reinforcing rib (21) and two hollow reinforcing ribs (22), the solid reinforcing rib (21) being disposed in the middle of the two hollow reinforcing ribs (22).
3. Solder paste screen printing assembly according to claim 2, wherein the width of both of the ribs (22) is greater than the width of the solid rib (21).
4. Solder paste screen printing assembly according to claim 1, characterized in that the printing aperture (3) is rectangular in shape.
5. Solder paste screen printing assembly according to claim 1, characterized in that the thickness of the printing plate (5) is in the range of 0.3 to 1 mm.
6. The solder paste screen printing assembly of claim 1, wherein the distance from the printing aperture to the stiffener is greater than or equal to 0.5 mm.
7. Solder paste screen printing assembly according to claim 1, characterized in that the frame (1) is provided with positioning holes (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220280200.7U CN217047890U (en) | 2022-02-11 | 2022-02-11 | Solder paste screen printing component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220280200.7U CN217047890U (en) | 2022-02-11 | 2022-02-11 | Solder paste screen printing component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217047890U true CN217047890U (en) | 2022-07-26 |
Family
ID=82484946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220280200.7U Active CN217047890U (en) | 2022-02-11 | 2022-02-11 | Solder paste screen printing component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217047890U (en) |
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2022
- 2022-02-11 CN CN202220280200.7U patent/CN217047890U/en active Active
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