Glass silk screen printing jig

Abstract

The application discloses a glass silk screen printing jig, which comprises a first seat body part and a second seat body part, the upper surface of the second seat body part is higher than the upper surface of the first seat body part, and the upper surface of the second seat body part is connected with the upper surface of the first seat body part through a curved surface transition, the second seat body part is provided with a containing groove, the inner bottom of the containing groove is provided with a bearing surface, and the second seat body part is further provided with a slot, so that when the 3D glass is placed on the bearing surface, the convex surface of the 3D glass is flush with the upper surface of the second seat body part. In the application, the slot which is communicated with the containing groove is arranged on the basis that the first seat body part and the second seat body part have a height difference, so that the plate surface part and the curved surface part of the 3D glass are flush with the outer surface of the second seat body part, and the dye of the scraping tool operation end can directly contact the plate surface part and the curved surface part of the 3D glass.

Description

Technical Field

[0001] This invention relates to the field of glass screen printing technology, and more particularly to a glass screen printing fixture. Background Technology

[0002] Currently, the glass covers of mobile phones and tablets mainly use 3D glass. 3D glass specifically includes a flat surface and curved surfaces that connect and interlock with the four sides of the flat surface. The curved surfaces on the sides of the 3D glass also have notches corresponding to the button positions of mobile phones and tablets. In the production and processing of this type of 3D glass, the current screen printing fixtures all have a groove in the middle to place the 3D glass. The groove is flat all around, allowing the 3D glass to be placed horizontally in the groove. This makes screen printing impossible in the curved edge area of ​​the 3D glass, and there is a lack of corresponding fixtures that can screen print on the curved edge area of ​​3D glass, which directly affects the product quality and production efficiency of screen printing. Summary of the Invention

[0003] To address the technical problems existing in the background art, the present invention proposes a glass screen printing fixture.

[0004] The present invention proposes a glass screen printing fixture, which can be installed on a screen printing carrier table for supporting and placing 3D glass. The 3D glass specifically includes a plate surface and curved surfaces that are connected to and interlocked with the four side walls of the plate surface. The glass screen printing fixture is characterized in that it includes: a first base part and a second base part arranged adjacent to and connected to the first base part. The upper surface of the second base part is higher than the upper surface of the first base part, and the upper surface of the second base part and the upper surface of the first base part are connected by a curved transition.

[0005] The second body has a receiving groove for holding 3D glass adjacent to the first body. The bottom of the receiving groove has a bearing surface that can fit and conform to the concave surface of the 3D glass. The second body also has a slot that communicates with the receiving groove and faces the first body, so that when the 3D glass is placed on the bearing surface, the convex surface of the 3D glass is flush with the upper surface of the second body.

[0006] As a further optimization of the above scheme, the upper surface of the first seat is a horizontal plane, and the upper surface of the second seat and the bearing surface are both inclined at the same angle to the horizontal plane, so that the end of the upper surface of the second seat and the bearing surface closer to the first seat is higher than the end farther away from the first seat.

[0007] As a further optimization of the above solution, a notch is provided on the side of the 3D glass, and a notch groove is provided on the side of the inner bottom of the receiving groove near the first seat body to match the notch of the 3D glass. A stop block is provided on the inner bottom of the notch groove so that when the 3D glass is placed on the bearing surface, the side wall of the stop block abuts against the notch of the 3D glass, and the upper surface of the stop block is aligned and connected with the convex surface of the 3D glass.

[0008] As a further optimization of the above solution, an annular groove is provided on the bottom of the receiving tank, so that when the 3D glass is placed on the bearing surface, the curved end of the 3D glass maintains a predetermined distance from the bottom surface of the annular groove.

[0009] As a further optimization of the above solution, the end of the 3D curved glass surface and the bottom surface of the annular groove should maintain a distance of at least 0.20 mm.

[0010] As a further optimization of the above scheme, an auxiliary groove is provided on the side of the second seat away from the first seat. The auxiliary groove is connected to and partially overlaps with the receiving groove, and the bottom surface of the auxiliary groove is lower than the bottom surface of the annular groove.

[0011] As a further optimization of the above scheme, the bearing surface has several arrayed air intake holes, which are used to connect with the external negative pressure pipeline.

[0012] In this invention, the proposed fixture has a receiving groove for accommodating 3D glass on the second body, and a slot communicating with the receiving groove is formed based on the height difference between the first and second bodies. The upper surface of the second body is connected to the upper surface of the first body by a curved transition, so that after the 3D glass is placed on the support surface, the surface of the 3D glass is flush with the upper surface of the second body, and the curved surface of the 3D glass near the first body is flush with the curved sidewall of the second body near the first body. When the squeegee performs screen printing, the dye at the working end of the squeegee can directly contact the surface of the 3D glass and the curved surface near the first body, thus meeting the requirements for screen printing on the surface and curved surface of the 3D glass.

[0013] By maintaining a uniform angle of inclination between the upper surface of the second body and the bearing surface and the horizontal plane, the pressure strength between the screen printing plate and the curved surface of the 3D glass is improved. The uniformity of dye distribution at the notch of the 3D glass is improved by using notch grooves and baffle blocks. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of one embodiment of a glass screen printing fixture proposed in this invention;

[0015] Figure 2 This is a top view schematic diagram of one embodiment of a glass screen printing fixture proposed in this invention;

[0016] Figure 3 This is a side view cross-sectional schematic diagram of one embodiment of a glass screen printing fixture proposed in this invention.

[0017] Figure 4This is an enlarged schematic diagram of structure A of one embodiment of the glass screen printing fixture proposed in this invention;

[0018] Figure 5 This is an enlarged schematic diagram of structure B, representing one embodiment of a glass screen printing fixture proposed in this invention. Detailed Implementation

[0019] like Figure 1 As shown, Figure 1 This is a schematic diagram of one embodiment of a glass screen printing fixture proposed in this invention.

[0020] Reference Figure 1 The present invention proposes a glass screen printing fixture, which can be installed on a screen printing carrier table for supporting and placing 3D glass. The 3D glass specifically includes a plate surface and curved surfaces that are connected to and interlocked with the four side walls of the plate surface. The glass screen printing fixture is characterized in that it includes: a first base 1 and a second base 2 arranged adjacent to and connected to the first base 1. The upper surface of the second base 2 is higher than the upper surface of the first base 1, and the upper surface of the second base 2 and the upper surface of the first base 1 are connected by a curved transition.

[0021] The second body 2 is provided with a receiving groove 3 adjacent to the first body 1 for receiving 3D glass. The bottom of the receiving groove 3 has a bearing surface 4 that can be adapted to fit the concave surface of the 3D glass. The second body 2 is also provided with a slot 5 that communicates with the receiving groove 3 and faces the first body 1, so that when the 3D glass is placed on the bearing surface 4, the convex surface of the 3D glass is flush with the upper surface of the second body 2.

[0022] In actual use of the fixture, the radius of the rounded corners of the curved surfaces of the two side walls of the second seat body is set to 45-55 degrees.

[0023] In the specific working process of the fixture in this embodiment, the 3D glass to be processed is first placed into the receiving tank 3, and the concave surface of the 3D glass is made to fit with the bearing surface 4. The fixture carrying the 3D glass is then installed on the screen printing worktable. After the screen printing plate is pressed down onto the upper surface of the fixture, since the upper surface of the second seat 2 is higher than the upper surface of the first seat 1, the upper surface of the second seat 2 and the upper surface of the first seat 1 are connected by a curved transition. During the scraping process of the scraper with dye at the working end from the side of the first seat 1 to the side of the second seat 2, the scraper will first scrape the upper surface of the first seat 1, and then slide up to the upper surface of the second seat 2 through the curved surface, and complete the subsequent scraping operation on the upper surface of the second seat 2.

[0024] During the scraping process, since the convex surface of the 3D glass is flush with the upper surface of the second base 2, the flat surface of the 3D glass is flush with the upper surface of the second base 2, and the curved surface of the 3D glass near the first base 1 is flush with the curved sidewall of the second base 2 near the first base 1, the dye at the scraper working end can directly contact the flat surface of the 3D glass and the curved surface near the first base 1, thereby realizing the screen printing operation on the flat surface of the 3D glass and the curved surface near the first base 1.

[0025] This application creates a receiving groove 3 for accommodating 3D glass on the second body 2, and creates a slot 5 communicating with the receiving groove 3 based on the height difference between the first body 1 and the second body 2. This allows the outer wall of the 3D glass surface and the curved surface near the first body 1 to be flush with the outer surface of the second body 2 after the 3D glass is placed on the bearing surface 4. When the squeegee performs screen printing, the dye at the working end of the squeegee can directly contact the outer wall of the 3D glass surface and the curved surface near the first body 1, thus meeting the requirements for screen printing on the 3D glass surface and curved surface.

[0026] In addition, refer to Figure 2 and Figure 3 In this embodiment, the upper surface of the first seat 1 is a horizontal plane, and the upper surface of the second seat 2 and the bearing surface 4 are both inclined at the same angle to the horizontal plane, so that the end of the upper surface of the second seat 2 and the bearing surface 4 that is closer to the first seat 1 is higher than the end that is farther away from the first seat 1. This makes the 3D glass placed on the bearing surface 4 appear to be tilted. During the scraping process of the scraper from one side of the first seat 1 to the other side of the second seat 2, the compaction time of the screen printing plate and the curved surface of the 3D glass that is closer to the first seat 1 is further increased and the compaction strength during the process is improved.

[0027] In actual use, based on the thickness of the 3D glass, the upper surface of the second base 2 and the bearing surface 4 are both tilted at the same angle to the horizontal plane, so that the side of the bearing surface 4 closer to the first base 1 is 0.98mm higher than the side farther from the first base 1, and the height difference is controlled within ±0.1mm to meet the processing and production requirements of 3D glass.

[0028] The curved surface of the 3D glass side has notches for accommodating buttons on mobile phones or tablets, for reference. Figure 4In this embodiment, a notch groove 6 adapted to the notch of the 3D glass is provided on the side of the inner bottom of the receiving groove 3 near the first base part 1, which increases the adaptability of the 3D glass when placed on the bearing surface 4. A stop block 10 is provided on the inner bottom of the notch groove 6, so that when the 3D glass is placed on the bearing surface 4, the side wall of the stop block 10 abuts against the notch of the 3D glass, and the upper surface of the stop block 10 is aligned and connected with the convex surface of the 3D glass. By directly using the notch groove 6 and the stop block 10 adapted to the notch of the 3D glass, the 3D glass is limited and supported, and the problem of uneven distribution of dye at the notch of the 3D glass during the scraping process is avoided, which affects the screen printing quality of the 3D glass, thus improving the processing quality of the 3D glass.

[0029] refer to Figure 5 During the scraping process, when the 3D glass is subjected to downward pressure from the scraper's working end, it will move further towards the protrusion 4, thereby improving the tightness of the 3D glass and the protrusion 4. Therefore, in this embodiment, according to the thickness of the 3D glass, an annular groove 7 is provided on the bottom of the receiving groove 3, so that when the 3D glass is placed on the bearing surface 4, the curved end of the 3D glass and the bottom surface of the annular groove 7 maintain a predetermined distance of at least 0.20mm, providing buffer space for further downward displacement of the 3D glass, and avoiding the curved end of the 3D glass from being directly squeezed by the bottom surface of the annular groove 7, which could cause the 3D glass to be crushed.

[0030] Meanwhile, in order to improve the convenience of taking out the 3D glass, an auxiliary groove 8 is provided on the side of the second seat 2 away from the first seat 1. The auxiliary groove 8 is connected to and partially overlaps with the receiving groove 3. The bottom surface of the auxiliary groove 8 is lower than the bottom surface of the annular groove 7.

[0031] In this embodiment, the bearing surface 4 has a plurality of air suction holes 9 arranged in an array. The air suction holes 9 are used to communicate with the external negative pressure pipe. After the 3D glass is placed on the bearing surface 4, the contact surface of the 3D glass is subjected to negative pressure adsorption through the external negative pressure pipe and the air suction holes 9, thereby limiting and fixing the 3D glass and improving the firmness of the 3D glass placed on the fixture.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A glass screen printing fixture, which can be installed on a screen printing support table for supporting and placing 3D glass, wherein the 3D glass specifically includes a plate surface and curved surfaces that are respectively connected to and interlocked with the four side walls of the plate surface, characterized in that, The glass screen printing fixture includes: a first base part (1) and a second base part (2) arranged adjacent to and connected to the first base part (1). The upper surface of the second base part (2) is higher than the upper surface of the first base part (1), and the upper surface of the second base part (2) and the upper surface of the first base part (1) are connected by a curved surface transition. The second body (2) is adjacent to the first body (1) and has a receiving groove (3) for receiving 3D glass. The bottom of the receiving groove (3) has a bearing surface (4) that can be adapted to fit the concave surface of the 3D glass. The second body (2) also has a slot (5) that communicates with the receiving groove (3) and faces the first body (1), so that when the 3D glass is placed on the bearing surface (4), the convex surface of the 3D glass is flush with the upper surface of the second body (2). The upper surface of the first seat part (1) is a horizontal plane, and the upper surface of the second seat part (2) and the bearing surface (4) are both inclined at the same angle to the horizontal plane, so that the end of the upper surface of the second seat part (2) and the bearing surface (4) near the first seat part (1) is higher than the end away from the first seat part (1); The 3D glass has a notch on its side. The bottom of the receiving groove (3) near the first seat (1) has a notch groove (6) that matches the notch of the 3D glass. A stop block (10) is provided on the bottom of the notch groove (6), so that when the 3D glass is placed on the bearing surface (4), the side wall of the stop block (10) abuts against the notch of the 3D glass, and the upper surface of the stop block (10) is aligned with the convex surface of the 3D glass.

2. The fixture according to claim 1, characterized in that, An annular groove (7) is provided on the inner bottom of the receiving tank (3) so that when the 3D glass is placed on the bearing surface (4), the end of the curved part of the 3D glass and the bottom surface of the annular groove (7) maintain a predetermined distance.

3. The fixture according to claim 2, characterized in that, The end of the 3D glass curved surface and the bottom surface of the annular groove (7) should maintain a distance of at least 0.20 mm.

4. The fixture according to claim 1, characterized in that, An auxiliary groove (8) is provided on the side of the second body part (2) away from the first body part (1). The auxiliary groove (8) is connected to and partially overlaps with the receiving groove (3). The bottom surface of the auxiliary groove (8) is lower than the bottom surface of the annular groove (7).

5. The fixture according to claim 1, characterized in that, The bearing surface (4) has several arrayed air intake holes (9), which are used to connect with the external negative pressure pipe.

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