Screen printing device for mobile phone shielding case

Abstract

The utility model discloses a screen printing device for a mobile phone shielding case, which comprises four bases, a machine table is fixedly arranged at the upper ends of the bases, and a printing table is fixedly arranged at the upper end of the machine table; the first sliding grooves are formed in the two sides of the interior of the printing table, the front end and the rear end of the interior of the printing table are each provided with three second sliding grooves, and fixing rods are arranged in the positions, close to the center of the printing table, of the first sliding grooves and the second sliding grooves; first pulleys are arranged at the front end and the rear end of the fixing rod in the first sliding groove and the two sides of the fixing rod in the second sliding groove. And the electric push rods are arranged in the first sliding groove and the second sliding groove correspondingly, and the problems that a fixing mechanism of the printing device is not flexible enough to adjust, and a silk screen is not convenient and fast to disassemble and assemble are solved through the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone shielding covers, in particular to a screen printing device for mobile phone shielding covers. Background Art

[0002] The screen printing device is a device used for printing on a flat or curved surface, and the printing process is mainly completed by screen printing technology. The mesh holes of the graphic part of the screen printing plate can pass the ink, while the mesh holes of the non-graphic part cannot pass the ink. When printing, the ink is poured on one end of the screen printing plate, and then a certain pressure is applied to the ink part through the scraper, while moving at a constant speed toward the other end of the screen printing plate. In this process, the ink will be squeezed from the mesh holes of the graphic part to the substrate by the scraper, and the screen printing device needs to be involved in the production process of the mobile phone shielding cover.

[0003] For example, the Chinese patent "A Screen Printing Device" with announcement number CN209224678U includes a fixing device and a printing device, wherein the fixing device includes a main body, a fixing clamp distributed in an array is provided at the lower end of the main body, a roller is provided on the inner side of the fixing clamp, and a movable table foot distributed in an array is provided at the lower end of the main body; a fixing column is provided at the upper end of the main body, a printing table is provided above the main body, a supporting foot is provided at the bottom end of the printing table, the supporting foot is located at the upper end of the main body, and fixing blocks are provided on both sides of the main body; a pad is provided at the upper end of the fixing block, fixing screws are provided at both ends of the pad, a fixing frame is provided at the upper end of the pad, a square through hole is provided on the fixing frame, a hanging device is penetrated at the upper end of the fixing frame, the lower end of the hanging device extends into the square through hole, a movable swivel is penetrated by the hanging device, the movable swivel is located at the upper end of the fixing frame, a horizontally placed fixing rod is provided at the lower end of the hanging device, a fixing plate is penetrated at both ends of the fixing rod, the fixing plate is located on one side of the bottom end of the hanging device, and a printing device is penetrated by the fixing rod; the printing device includes a movable clamp, a fixed U-shaped ear, a fixing rod, a screen frame, a screen printing plate and a scraper.

[0004] Although the above-mentioned prior art can realize the printing of mobile phone shielding covers, in actual use, on the one hand, the fixing mechanism of the printing device is not flexible enough. When printing mobile phone shielding covers of different sizes, the position of the fixing mechanism needs to be manually adjusted, resulting in the need to adjust the fixing mechanism every time printing is performed, thereby reducing the adaptability of the printing device to the mobile phone shielding cover. On the other hand, the silk screen is not convenient to disassemble and assemble. When changing the silk screen pattern, the silk screen frame needs to be dismantled as a whole and then replaced, thereby increasing the workload of the operator. Therefore, it does not meet the existing needs. In this regard, we propose a silk screen printing device for mobile phone shielding covers. Utility Model Content

[0005] The utility model aims to provide a screen printing device for a mobile phone shielding cover, so as to solve the problems that the fixing mechanism of the printing device proposed in the above background technology is not flexible enough to adjust, and the screen is not convenient to disassemble and assemble.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a screen printing device for a mobile phone shielding cover, comprising a base, and the base is provided with four, the upper end of the base is fixedly provided with a machine table, and the upper end of the machine table is fixedly provided with a printing table; and further comprising:

[0007] A first slide groove is arranged on both sides of the printing table, three first slide grooves are arranged, and the first slide grooves are evenly distributed, three second slide grooves are arranged at the front and rear ends of the printing table, and the second slide grooves are evenly distributed, the first slide groove and the second slide groove are arranged with fixed rods near the center of the printing table, and the upper end of the fixed rod extends above the printing table, the front and rear ends of the fixed rod in the first slide groove and the two sides of the fixed rod in the second slide groove are arranged with first pulleys, and the first pulleys are rotatably connected to the fixed rods;

[0008] The electric push rod is respectively arranged inside the first slide groove and the second slide groove, the fixed end of the electric push rod is respectively fixedly connected to the inner wall of the first slide groove and the second slide groove, and the telescopic end of the electric push rod is fixedly connected to the fixed rod.

[0009] Preferably, a mounting frame is fixedly provided at the upper end of the printing table, a fixing frame is provided below the horizontal plate of the mounting frame, and the middle position of the fixing frame is a hollow structure, a slot is provided inside the fixing frame, and one side of the slot is an open structure, a wire mesh frame is provided inside the slot, and one side of the wire mesh frame extends to the outside of the fixing frame, a limiting plate is fixedly provided outside the wire mesh frame outside the fixing frame, and a handle is fixedly provided on one side of the wire mesh frame outside the fixing frame.

[0010] Preferably, four first threaded holes are provided inside the fixing frame, and the first threaded holes are connected to the slots, second threaded holes are provided at the four corners inside the wire mesh frame, and the positions of the second threaded holes correspond to those of the first threaded holes, bolts are provided inside the second threaded holes, the upper ends of the bolts extend to the inside of the first threaded holes, and the lower ends of the bolts extend to the bottom of the fixing frame.

[0011] Preferably, a wire mesh is provided at a middle position inside the wire mesh frame, and the wire mesh is fixedly connected to the wire mesh frame.

[0012] Preferably, connecting frames are fixedly provided on both sides of the upper end of the wire mesh frame, guide rails are fixedly provided in the middle of the connecting frames on both sides, a moving block is provided at the middle position outside the guide rails, second pulleys are provided on both sides of the front and rear ends inside the moving block, and the second pulleys are slidably matched with the guide rails, motors are fixedly provided on the front and rear ends on one side of the outside of the moving block, and the output shaft of the motor extends to the interior of the moving block and is fixedly connected to the second pulley close to the inner side of the moving block.

[0013] Preferably, a second hydraulic telescopic device is fixedly provided at the lower end of the moving block, an ink scraping strip is fixedly provided at the lower end of the telescopic end of the second hydraulic telescopic device, and the lower end of the ink scraping strip is in contact with the screen.

[0014] Preferably, a first hydraulic telescopic device is fixedly provided on the upper end of the mounting frame, and the telescopic end of the first hydraulic telescopic device extends to the bottom of the mounting frame cross plate and is fixedly connected to the guide rail.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model can fix mobile phone shielding covers of different sizes through a fixing rod and an electric push rod. Before printing the mobile phone shielding cover, the position of the fixing rod is adjusted according to the size of the mobile phone shielding cover. At this time, the electric push rod is energized, and the telescopic ends of the electric push rod are extended inside the first slide groove and the second slide groove respectively. At this time, the fixing rods inside the first slide groove and the second slide groove are moved toward the center position of the printing table until the fixing rod moves to a suitable position. At the same time, the electric push rods inside the first slide groove and the second slide groove are independently arranged. The mobile phone shielding cover is fixed on the printing table by squeezing the fixing rod, avoiding the need to adjust the fixing mechanism every time printing is performed, thereby improving the adaptability of the printing device to the mobile phone shielding cover.

[0017] 2. The utility model can flexibly disassemble and assemble the wire mesh frame through the limiting plate and the slot. When the wire mesh needs to be replaced, the bolt is rotated at this time to make the bolt move outward in the first threaded hole and the second threaded hole through the external spiral until the bolt is disengaged from the first threaded hole and the second threaded hole. At this time, the wire mesh frame is pulled by the handle to move the wire mesh frame outward from the inside of the slot. After the wire mesh frame is taken out, the new wire mesh frame is aligned with the opening of the slot and pushed into the slot until the limiting plate on the wire mesh frame contacts the fixed frame. At this time, the wire mesh frame reaches a suitable position and the positions of the first threaded hole and the second threaded hole correspond. Then the bolt is aligned with the opening of the first threaded hole and the bolt is rotated until the bolt penetrates the second threaded hole and extends to the first threaded hole at the upper end. At this time, the wire mesh frame is fixed in the fixed frame by the cooperation of the bolt with the first threaded hole and the second threaded hole, which simplifies the disassembly and assembly steps of the wire mesh frame and reduces the workload of the operator.

[0018] 3. The utility model is provided with a second hydraulic telescopic device, which can make the position of the ink scraper strip flexibly adjusted. When printing, the motor is turned on at this time, so that the output shaft of the motor drives the second pulley to rotate inside the guide rail, and at the same time, the second pulley drives the moving block to move on the guide rail until the moving block moves to one side of the guide rail. At this time, the second hydraulic telescopic device is turned on again, so that the telescopic end of the second hydraulic telescopic device drives the ink scraper strip to move downward until the ink scraper strip contacts the upper end surface of the screen. The ink thickness can be adjusted by moving the ink scraper in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the internal structure of the utility model;

[0020] Figure 2 It is a side view of the internal structure of the utility model;

[0021] Figure 3 For the utility model Figure 1 A partial enlarged view of the middle A area;

[0022] Figure 4 For the utility model Figure 2 A partial enlarged view of area B.

[0023] In the figure: 1. base; 2. machine table; 3. printing table; 4. mounting frame; 5. first hydraulic telescopic device; 6. guide rail; 7. connecting frame; 8. fixed frame; 9. moving block; 10. motor; 11. second hydraulic telescopic device; 12. ink scraper strip; 13. slot; 14. screen frame; 15. screen; 16. first threaded hole; 17. second threaded hole; 18. bolt; 19. limit plate; 20. handle; 21. first slide groove; 22. electric push rod; 23. fixed rod; 24. first pulley; 25. second pulley; 26. second slide groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-4 The utility model provides an embodiment: a screen printing device for a mobile phone shielding cover, comprising a base 1, and the base 1 is provided with four, the upper end of the base 1 is fixedly provided with a machine table 2, and the upper end of the machine table 2 is fixedly provided with a printing table 3; and further comprising:

[0026] The first slide groove 21 is arranged on both sides of the printing table 3. There are three first slide grooves 21, and the first slide grooves 21 are evenly distributed. The front and rear ends of the printing table 3 are both provided with three second slide grooves 26, and the second slide grooves 26 are evenly distributed. The first slide groove 21 and the second slide groove 26 are both provided with a fixed rod 23 near the center of the printing table 3, and the upper end of the fixed rod 23 extends to the top of the printing table 3. The front and rear ends of the fixed rod 23 in the first slide groove 21 and the two sides of the fixed rod 23 in the second slide groove 26 are both provided with a first pulley 24, and the first pulley 24 is rotatably connected to the fixed rod 23;

[0027] The electric push rod 22 is respectively arranged inside the first slide groove 21 and the second slide groove 26 , and the fixed ends of the electric push rod 22 are respectively fixedly connected to the inner walls of the first slide groove 21 and the second slide groove 26 , and the telescopic end of the electric push rod 22 is fixedly connected to the fixed rod 23 .

[0028] When in use, before printing the mobile phone shielding cover, the position of the fixing rod 23 is adjusted according to the size of the mobile phone shielding cover. At this time, the electric push rod 22 is energized, and the telescopic ends of the electric push rod 22 are respectively extended inside the first slide groove 21 and the second slide groove 26. At this time, the fixing rods 23 inside the first slide groove 21 and the second slide groove 26 are moved toward the center position of the printing table 3 until the fixing rod 23 moves to a suitable position. At the same time, the electric push rods 22 inside the first slide groove 21 and the second slide groove 26 are independently arranged, and the mobile phone shielding cover is fixed on the printing table 3 by squeezing the fixing rod 23.

[0029] See also Figure 1 A mounting frame 4 is fixedly provided on the upper end of the printing table 3, a fixing frame 8 is provided below the horizontal plate of the mounting frame 4, and the middle position of the fixing frame 8 is a hollow structure, a slot 13 is provided inside the fixing frame 8, and one side of the slot 13 is an open structure, a screen frame 14 is provided inside the slot 13, and one side of the screen frame 14 extends to the outside of the fixing frame 8, a limiting plate 19 is fixedly provided on the outside of the screen frame 14 located outside the fixing frame 8, and a handle 20 is fixedly provided on one side of the screen frame 14 located outside the fixing frame 8, so that the screen frame 14 can be quickly disassembled and assembled through the slot 13, and the screen frame 14 can also be quickly positioned through the limiting plate 19.

[0030] See also Figure 2 and Figure 4Four first threaded holes 16 are arranged inside the fixed frame 8, and the first threaded holes 16 are communicated with the slots 13. Second threaded holes 17 are arranged at the four corners inside the wire mesh frame 14, and the positions of the second threaded holes 17 and the first threaded holes 16 correspond. Bolts 18 are arranged inside the second threaded holes 17, and the upper ends of the bolts 18 extend to the inside of the first threaded holes 16, and the lower ends of the bolts 18 extend to the bottom of the fixed frame 8, so that the wire mesh frame 14 can be fixed in the fixed frame 8 through the cooperation of the bolts 18 with the second threaded holes 17 and the first threaded holes 16.

[0031] See also Figure 1 A screen 15 is provided at the middle position inside the screen frame 14 , and the screen 15 is fixedly connected to the screen frame 14 , so that the pattern can be printed on the mobile phone shielding cover through the screen 15 .

[0032] See also Figure 1 and Figure 2 , connecting frames 7 are fixedly provided on both sides of the upper end of the wire mesh frame 14, and guide rails 6 are fixedly provided in the middle of the connecting frames 7 on both sides, and a moving block 9 is provided at the middle position outside the guide rail 6, and second pulleys 25 are provided on both sides of the front and rear ends of the moving block 9, and the second pulley 25 slides with the guide rail 6, and a motor 10 is fixedly provided on the front and rear ends of one side of the outer side of the moving block 9, and the output shaft of the motor 10 extends to the interior of the moving block 9 and is fixedly connected to the second pulley 25 close to the inner side of the moving block 9, so that the moving block 9 can be driven by the motor 10 to move on the guide rail 6.

[0033] See also Figure 1 and Figure 2 A second hydraulic telescopic device 11 is fixedly provided at the lower end of the moving block 9, and an ink scraping strip 12 is fixedly provided at the lower end of the telescopic end of the second hydraulic telescopic device 11, and the lower end of the ink scraping strip 12 is in contact with the screen 15, so that the ink can be scraped off the screen 15 through the ink scraping strip 12.

[0034] See also Figure 1 A first hydraulic telescopic device 5 is fixedly provided on the upper end of the mounting frame 4, and the telescopic end of the first hydraulic telescopic device 5 extends to the bottom of the cross plate of the mounting frame 4 and is fixedly connected to the guide rail 6, so that the guide rail 6 can be driven downward by the first hydraulic telescopic device 5.

[0035] Working principle: When the wire mesh 15 needs to be replaced, the bolt 18 is rotated at this time, so that the bolt 18 moves outward in the first threaded hole 16 and the second threaded hole 17 through the external spiral until the bolt 18 is disengaged from the first threaded hole 16 and the second threaded hole 17. At this time, the wire mesh frame 14 is pulled by the handle 20 to move the wire mesh frame 14 outward from the inside of the slot 13. After the wire mesh frame 14 is taken out, the new wire mesh frame 14 is aligned with the opening of the slot 13 and pushed into the slot 13 until the limit plate 19 on the wire mesh frame 14 contacts the fixed frame 8. At this time, the wire mesh frame 14 reaches a suitable position and the positions of the first threaded hole 16 and the second threaded hole 17 correspond, and then the bolt 18 is aligned with the first threaded hole 16 is opened and the bolt 18 is rotated until the bolt 18 passes through the second threaded hole 17 and extends to the first threaded hole 16 at the upper end. At this time, the screen frame 14 is fixed in the fixed frame 8 through the cooperation of the bolt 18 with the first threaded hole 16 and the second threaded hole 17. When printing is performed, the motor 10 is turned on at this time, so that the output shaft of the motor 10 drives the second pulley 25 to rotate inside the guide rail 6, and at the same time, the moving block 9 is driven to move on the guide rail 6 through the second pulley 25 until the moving block 9 moves to one side of the guide rail 6. At this time, the second hydraulic telescopic device 11 is turned on again, so that the telescopic end of the second hydraulic telescopic device 11 drives the ink scraping strip 12 to move downward until the ink scraping strip 12 contacts the upper end surface of the screen 15.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A screen printing device for a mobile phone shielding cover, comprising a base (1), wherein the base (1) is provided with four, a machine table (2) is fixedly provided at the upper end of the base (1), and a printing table (3) is fixedly provided at the upper end of the machine table (2); Features: Also includes: A first slide groove (21) is arranged on both sides of the printing table (3), three first slide grooves (21) are arranged, and the first slide grooves (21) are evenly distributed, three second slide grooves (26) are arranged at the front and rear ends of the printing table (3), and the second slide grooves (26) are evenly distributed, a fixed rod (23) is arranged inside the first slide groove (21) and the second slide groove (26) near the center of the printing table (3), and the upper end of the fixed rod (23) extends above the printing table (3), a first pulley (24) is arranged at the front and rear ends of the fixed rod (23) in the first slide groove (21) and on both sides of the fixed rod (23) in the second slide groove (26), and the first pulley (24) is rotatably connected to the fixed rod (23); The electric push rod (22) is respectively arranged inside the first slide groove (21) and the second slide groove (26), the fixed end of the electric push rod (22) is respectively fixedly connected to the inner wall of the first slide groove (21) and the second slide groove (26), and the telescopic end of the electric push rod (22) is fixedly connected to the fixed rod (23).

2. A screen printing device for a mobile phone shielding cover according to claim 1, characterized in that: A mounting frame (4) is fixedly arranged at the upper end of the printing table (3); a fixing frame (8) is arranged below the horizontal plate of the mounting frame (4); the middle position of the fixing frame (8) is a hollow structure; a slot (13) is arranged inside the fixing frame (8); one side of the slot (13) is an open structure; a screen frame (14) is arranged inside the slot (13); one side of the screen frame (14) extends to the outside of the fixing frame (8); a limiting plate (19) is fixedly arranged outside the fixing frame (8); and a handle (20) is fixedly arranged on one side of the screen frame (14) outside the fixing frame (8).

3. A screen printing device for a mobile phone shielding cover according to claim 2, characterized in that: Four first threaded holes (16) are arranged inside the fixing frame (8), and the first threaded holes (16) are connected to the slots (13); second threaded holes (17) are arranged at four corners inside the wire mesh frame (14), and the positions of the second threaded holes (17) and the first threaded holes (16) correspond; bolts (18) are arranged inside the second threaded holes (17), and the upper ends of the bolts (18) extend to the inside of the first threaded holes (16), and the lower ends of the bolts (18) extend to the bottom of the fixing frame (8).

4. A screen printing device for a mobile phone shielding cover according to claim 3, characterized in that: A wire mesh (15) is arranged at a middle position inside the wire mesh frame (14), and the wire mesh (15) is fixedly connected to the wire mesh frame (14).

5. A screen printing device for a mobile phone shielding cover according to claim 4, characterized in that: A connecting frame (7) is fixedly provided on both sides of the upper end of the wire mesh frame (14), a guide rail (6) is fixedly provided in the middle of the connecting frames (7) on both sides, a moving block (9) is provided at the middle position outside the guide rail (6), a second pulley (25) is provided on both sides of the front and rear ends inside the moving block (9), and the second pulley (25) is slidably matched with the guide rail (6), a motor (10) is fixedly provided on the front and rear ends of one side of the outside of the moving block (9), and the output shaft of the motor (10) extends to the inside of the moving block (9) and is fixedly connected to the second pulley (25) close to the inner side of the moving block (9).

6. A screen printing device for a mobile phone shielding cover according to claim 5, characterized in that: A second hydraulic telescopic device (11) is fixedly provided at the lower end of the moving block (9), an ink scraping strip (12) is fixedly provided at the lower end of the telescopic end of the second hydraulic telescopic device (11), and the lower end of the ink scraping strip (12) is in contact with the screen (15).

7. A screen printing device for a mobile phone shielding cover according to claim 5, characterized in that: A first hydraulic telescopic device (5) is fixedly provided at the upper end of the mounting frame (4), and the telescopic end of the first hydraulic telescopic device (5) extends to the bottom of the horizontal plate of the mounting frame (4) and is fixedly connected to the guide rail (6).

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