Curved glass printing device

Abstract

The utility model relates to a curved glass printing device. The curved glass printing device comprises a mounting base, a printing assembly and a placing assembly. The printing assembly is arranged on the mounting base. The placing assembly is matched with the printing assembly, the placing assembly comprises a curved glass placing structure, the curved glass placing structure comprises a profiling jig and a lifting part, the first end of the profiling jig is rotatably arranged on the mounting base, the second end of the profiling jig is hinged to the first end of the lifting part, and the second end of the lifting part is arranged on the mounting base; the curved glass is placed on the profiling jig. According to the technical scheme, the problem that in the prior art, small-size curved glass is difficult to print is effectively solved.

Description

Technical Field

[0001] The present application relates to the technical field of glass printing, and in particular to a curved glass printing device. Background Art

[0002] 3D curved glass is widely used in smart phones, tablet computers, smart watches, automobiles and other fields. During the processing of glass, patterns are printed on the glass through printing equipment. Currently, commonly used printing methods include screen printing, ordinary pad printing, spray printing, photolithography and many other methods.

[0003] In some existing devices (for example, the application announcement number is CN114516219A, and the name is glass screen printing follower mechanism and glass screen printing machine), the glass screen printing follower mechanism includes a base, a jig platform and a printing mechanism; the jig platform includes a jig, a mounting platform and a jig rotating mechanism, the mounting platform is mounted on the base through the jig rotating mechanism, the jig is fixed on the mounting platform, and the jig surface is an arc surface; the printing mechanism includes a scraper. The jig can rotate under the drive of the jig rotating mechanism, and the curved glass placed on the jig rotates synchronously, and the highest point of the curved glass is always directly below the scraper, thereby completing the printing of the entire surface of the curved glass. The jig rotating mechanism drives the jig to rotate by meshing the gear with the arc gear ring roller. For small-sized curved glass, the size of the arc gear ring roller needs to be changed accordingly. However, the production of small-sized arc gear ring rollers is difficult and the production cost is high. Utility Model Content

[0004] The present application provides a curved glass printing device to solve the problem of difficulty in printing on small-sized curved glass in the prior art.

[0005] According to the application, a curved glass printing device is provided, comprising: a mounting base, a printing assembly and a placement assembly. The printing assembly is arranged on the mounting base. The placement assembly cooperates with the printing assembly, the placement assembly comprises a curved glass placement structure, the curved glass placement structure comprises a profiling jig and a lifting part, the first end of the profiling jig is rotatably arranged on the mounting base, the second end of the profiling jig is hinged to the first end of the lifting part, the second end of the lifting part is arranged on the mounting base, and the curved glass is placed on the profiling jig.

[0006] In some embodiments, the curved glass placement structure also includes a rotating shaft and two groups of support seats. The contoured jig has a first matching hole. The rotating shaft is inserted into the first matching hole and has an interference fit with the first matching hole. The two groups of support seats are both located on the mounting base and are arranged opposite to each other. The first group of support seats has a second matching hole, and the second group of support seats has a third matching hole. The first end of the rotating shaft is rotatably arranged in the second matching hole, and the second end of the rotating shaft is rotatably arranged in the third matching hole.

[0007] In some embodiments, the lifting part is an electric push rod, a pneumatic cylinder or a hydraulic cylinder.

[0008] In some embodiments, the contoured jig includes a jig body, a plane groove and a curved groove, both of which are arranged on the jig body, the plane groove and the curved groove are connected to the opposite sides of the plane groove, the plane groove and the jig body are both rectangular in the vertical projection, and the long side of the plane groove has an inclination angle relative to the long side of the jig body.

[0009] In some embodiments, the curved glass placement structure also includes a first protection pad, multiple second protection pads and multiple third protection pads. The first protection pad is located in the plane groove and the curved groove, and is in contact with the inner walls of the plane groove and the curved groove. The multiple second protection pads are connected to the inner wall of the first protection pad. The bottom of the plane groove and the curved groove are both provided with multiple negative pressure holes, and the multiple third protection pads and the multiple negative pressure holes are arranged at intervals.

[0010] In some embodiments, the placement component also includes a silk screen placement structure, the silk screen placement structure includes a first support frame and a silk screen placement groove, the printing component also includes a silk screen, the first support frame is arranged on the mounting base, the silk screen placement groove is arranged on the first support frame, the silk screen placement groove and the contour jig are arranged correspondingly, and the silk screen is located in the silk screen placement groove.

[0011] In some embodiments, the printing assembly further includes a scraper body, an inkjet structure and a moving structure, the moving structure is disposed on a mounting base, the scraper body and the inkjet structure are both located on the moving structure and are both disposed toward the placement assembly.

[0012] In some embodiments, the movable structure includes a driving motor, a driving screw, a nut seat and two groups of second support frames, the two groups of second support frames are both arranged on a mounting base, and the two groups of second support frames are arranged opposite to each other, the driving motor is arranged on the first group of second support frames, the driving motor and the first end of the driving screw are transmission-connected, the second end of the driving screw is rotatably arranged on the second group of second support frames, and the nut seat is movably sleeved on the circumferential outer side of the driving screw.

[0013] In some embodiments, the moving structure further includes a connecting plate, the connecting plate is connected to the nut seat, and the scraper body is connected to the first end of the connecting plate.

[0014] In some embodiments, the inkjet structure includes an ink storage box, an ink pipeline and an ink nozzle. The ink storage box is placed on the side of the connecting plate away from the scraper body, the ink storage box is connected to the first end of the ink pipeline, the ink nozzle is connected to the second end of the ink pipeline, and the ink nozzle is located at the second end of the connecting plate.

[0015] Applying the technical solution of the present application, the curved glass printing device includes a mounting base, a printing component and a placement component. The printing component is arranged on the mounting base, and the printing component and the placement component cooperate to realize the printing of the curved glass. The placement component includes a curved glass placement structure, and the curved glass placement structure includes a profiling jig and a lifting part. The first end of the profiling jig is rotatably arranged on the mounting base, and the second end of the profiling jig is hinged with the first end of the lifting part. The second end of the lifting part is arranged on the mounting base. With the lifting and lowering of the lifting part, the second end of the profiling jig connected to the lifting part is driven to rotate around the first end of the profiling jig. The curved glass is placed on the profiling jig, and the curved glass rotates with the rotation of the profiling jig, so that the highest point of the curved glass always corresponds to the printing component, thereby realizing the printing of the curved glass. For curved glass of different sizes, printing can be realized by simply replacing the lifting part of the corresponding size. The technical solution of the present application effectively solves the problem of the difficulty of printing small-sized curved glass in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 The structure schematic diagram of the curved glass printing device of the first embodiment of the present application is shown;

[0019] Figure 2 A schematic diagram of the structure of the mobile structure of the first embodiment of the present application is shown;

[0020] Figure 3 A schematic structural diagram of a curved glass placement structure according to Embodiment 1 of the present application is shown;

[0021] Figure 4 A schematic diagram of the top view of the curved glass placement structure of the first embodiment of the present application is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10. Mounting base; 20. Printing assembly; 21. Scraper body; 22. Inkjet structure; 221. Ink storage box; 222. Ink pipeline; 223. Ink nozzle; 23. Moving structure; 231. Driving motor; 232. Driving screw; 233. Nut seat; 234. Second support frame; 235. First light rod; 236. Connecting plate; 30. Placement assembly; 31. Curved glass placement structure; 311. Contour fixture; 3111. Fixture body; 3112. Plane groove; 3113. Curved groove; 3114. Negative pressure hole; 312. Lifting part; 313. Rotating shaft; 314. Support seat; 315. First protection pad; 316. Second protection pad; 317. Third protection pad; 32. Silk screen placement structure; 321. First support frame; 322. Silk screen placement groove. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0026] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0027] like Figure 1As shown, a curved glass printing device provided in the first embodiment includes: a mounting base 10, a printing assembly 20 and a placement assembly 30. The printing assembly 20 is arranged on the mounting base 10. The placement assembly 30 cooperates with the printing assembly 20, and the placement assembly 30 includes a curved glass placement structure 31, and the curved glass placement structure 31 includes a profiling jig 311 and a lifting part 312. The first end of the profiling jig 311 is rotatably arranged on the mounting base 10, the second end of the profiling jig 311 is hinged to the first end of the lifting part 312, and the second end of the lifting part 312 is arranged on the mounting base 10, and the curved glass is placed on the profiling jig 311.

[0028] The technical solution of this embodiment is applied, and the curved glass printing device includes a mounting base 10, a printing assembly 20 and a placement assembly 30. The printing assembly 20 is arranged on the mounting base 10, and the printing assembly 20 and the placement assembly 30 cooperate to realize the printing of the curved glass. The placement assembly 30 includes a curved glass placement structure 31, and the curved glass placement structure 31 includes a profiling jig 311 and a lifting part 312. The first end of the profiling jig 311 is rotatably arranged on the mounting base 10, and the second end of the profiling jig 311 is hinged to the first end of the lifting part 312. The second end of the lifting part 312 is arranged on the mounting base 10. As the lifting part 312 rises and falls, the second end of the profiling jig 311 hinged to the lifting part 312 is driven to rotate around the first end of the profiling jig 311. The curved glass is placed on the profiling jig 311, and the curved glass rotates with the rotation of the profiling jig 311, so that the highest point of the curved glass always corresponds to the printing assembly 20, thereby realizing the printing of the curved glass. For curved glass of different sizes, printing can be achieved by simply replacing the lifting part 312 of the corresponding size. The technical solution of this embodiment effectively solves the problem of difficulty in printing on small-sized curved glass in the prior art.

[0029] It should be noted that the scraper body 21 and the inkjet structure 22 are both disposed on the mounting base 10 and are disposed toward the placement assembly 30 , and the first end and the second end of the profiling jig 311 are disposed opposite to each other.

[0030] like Figure 1 and Figure 3 As shown, in the technical solution of embodiment one, the curved glass placement structure 31 also includes a rotating shaft 313 and two groups of support seats 314. The contoured fixture 311 has a first matching hole. The rotating shaft 313 is inserted into the first matching hole and is interference fit with the first matching hole. The two groups of support seats 314 are both located on the mounting base 10 and are arranged opposite to each other. The first group of support seats 314 has a second matching hole, and the second group of support seats 314 has a third matching hole. The first end of the rotating shaft 313 is rotatably arranged in the second matching hole, and the second end of the rotating shaft 313 is rotatably arranged in the third matching hole.

[0031] In the technical solution of embodiment one, the lifting part 312 is an electric push rod, and the lifting part 312 includes a motor, a lifting screw, a lifting nut seat, a first sleeve and a second sleeve. The motor and the lifting screw are transmission connected, and the lifting nut seat is movably sleeved on the circumferential outer side of the lifting screw. The lifting screw is arranged inside the second sleeve, and the second sleeve is movably arranged inside the first sleeve, and the second sleeve is connected to the lifting nut seat. The motor drives the lifting screw to rotate, so that the lifting nut seat moves along the axial direction of the lifting screw, and the lifting nut seat drives the second sleeve to move along the axial direction of the first sleeve. The second sleeve and the profiling jig 311 are hinged, thereby realizing the rotation of the profiling jig 311.

[0032] like Figure 3 and Figure 4 As shown, in the technical solution of the first embodiment, the profiling jig 311 includes a jig body 3111, a plane groove 3112 and a curved groove 3113, both of which are arranged on the jig body 3111, and the plane groove 3112 is connected to the side opposite to the curved groove 3113, and the plane groove 3112 and the jig body 3111 are both rectangular in the vertical projection, and the long side of the plane groove 3112 has an inclination angle relative to the long side of the jig body 3111. The inclination angle of the long side of the plane groove 3112 relative to the long side of the jig body 3111 is between 15° and 50°, and the inclination angle in this embodiment is 30°. If the inclination angle is less than 15°, the printing area cannot be effectively increased. If the inclination angle is greater than 50°, in order to match the arrangement of the plane groove 3112 and the curved groove 3113, the jig body 3111 needs to be correspondingly enlarged, resulting in more adjustment parts. The tilt angle is set so that the contact area between the screen printing plate placement groove 322 and the curved groove 3113 increases during the rotation of the profiling jig 311 relative to the situation without a tilt angle (i.e., the long side of the flat groove 3112 is parallel to the long side of the jig body 3111). As the profiling jig 311 gradually rotates, the contact position between the screen printing plate placement groove 322 and the curved groove 3113 is always a straight line. Therefore, setting the tilt angle can increase the contact area between the screen printing plate placement groove 322 and the curved groove 3113, thereby improving printing efficiency.

[0033] It should also be noted that the curved glass has a flat part, a curved part and a connecting part. The flat part is placed in the flat groove 3112, and the curved part is placed in the curved groove 3113. The connecting part is the part where the flat part and the curved part are connected. During the printing process, the flat part and the curved part are printed separately. The lifting part 312 is arranged at one end close to the curved groove 3113, and the rotating shaft 313 is arranged at one end close to the plane groove 3112. As the lifting part 312 rises, the profiling jig 311 rotates counterclockwise. In the horizontal projection, the angle between the plane groove 3112 and the screen printing plate placement groove 322 gradually increases until they are separated. The curved groove 3113 is tangent to the screen printing plate placement groove 322 from left to right. When the lifting part 312 rises to the highest point, the rightmost side of the curved groove 3113 is tangent to the screen printing plate placement groove 322, thereby realizing the printing of the curved part and the connecting part, and then printing on the flat glass. As the lifting part 312 descends, the profiling jig 311 rotates clockwise. When the flat part is parallel to the projection of the screen printing plate placement groove 322 in the horizontal direction, the rotation stops, and the flat part is printed at this time.

[0034] like Figure 3 and Figure 4 As shown, in the technical scheme of embodiment 1, the curved glass placement structure 31 also includes a first protection pad 315, a plurality of second protection pads 316 and a plurality of third protection pads 317. The first protection pad 315 is located in the plane groove 3112 and the curved groove 3113, and fits with the inner walls of the plane groove 3112 and the curved groove 3113. The plurality of second protection pads 316 are connected to the inner wall of the first protection pad 315. This arrangement makes it difficult for the curved glass to be worn and scratched when placed. The bottom of the plane groove 3112 and the curved groove 3113 are both provided with a plurality of negative pressure holes 3114. The plurality of third protection pads 317 and the plurality of negative pressure holes 3114 are arranged at intervals. The negative pressure holes 3114 are connected to an external negative pressure device. A negative pressure space is formed in the first protection pad 315 to uniformly adsorb the curved glass. At the same time, since the negative pressure is relatively large near the negative pressure hole 3114, the third protection pad 317 is arranged to prevent the curved glass from deformation. The first protection pad 315 , the second protection pads 316 , and the third protection pads 317 are made of plastic or rubber.

[0035] like Figure 1As shown, in the technical solution of the first embodiment, the placement component 30 also includes a screen printing plate placement structure 32, the screen printing plate placement structure 32 includes a first support frame 321 and a screen printing plate placement groove 322, the printing component 20 also includes a screen printing plate, the first support frame 321 is arranged on the mounting base 10, the screen printing plate placement groove 322 is arranged on the first support frame 321, the screen printing plate placement groove 322 and the profiling fixture 311 are arranged correspondingly, and the screen printing plate is located in the screen printing plate placement groove 322. The screen printing plate placement groove 322 is located above the profiling fixture 311, and fits the profiling fixture 311, and the screen printing plate corresponds to the curved glass.

[0036] like Figure 1 As shown, in the technical scheme of embodiment one, the printing component 20 also includes a scraper body 21, an inkjet structure 22 and a movable structure 23. The movable structure 23 is arranged on the mounting base 10. The scraper body 21 and the inkjet structure 22 are both located on the movable structure 23, and are both arranged toward the placement component 30. The scraper body 21 and the inkjet structure 22 move with the movement of the movable structure 23, the inkjet structure 22 sprays ink, and the scraper body 21 spreads the ink evenly.

[0037] like Figure 1 and Figure 2 As shown, in the technical solution of the first embodiment, the moving structure 23 includes a driving motor 231, a driving screw 232, a nut seat 233 and two groups of second support frames 234. The two groups of second support frames 234 are both arranged on the mounting base 10, and the two groups of second support frames 234 are arranged opposite to each other. The driving motor 231 is arranged on the first group of second support frames 234. The driving motor 231 is connected to the first end of the driving screw 232 by transmission. The second end of the driving screw 232 is rotatably arranged on the second group of second support frames 234. The nut seat 233 is movably sleeved on the circumferential outer side of the driving screw 232. The driving motor 231 drives the driving screw 232 to rotate, and the nut seat 233 is meshed with the driving screw 232. As the driving screw 232 rotates, the nut seat 233 moves along the axial direction of the driving screw 232. The moving direction of the nut seat 233 can be adjusted by controlling the forward and reverse rotation of the driving motor 231.

[0038] It should be noted that the movable structure 23 also includes a first light rod 235 and a second light rod, and the nut seat 233 has two groups of through holes. The first light rod 235 and the second light rod are respectively arranged in a one-to-one correspondence with the two groups of through holes, and are respectively inserted into the two groups of through holes. The first ends of the first light rod 235 and the second light rod are connected to the first group of second support frames 234, and the second ends of the first light rod 235 and the second light rod are connected to the second group of second support frames 234. The nut seat 233 moves along the axial direction of the first light rod 235 and the second light rod. The first light rod 235 and the second light rod make the nut seat 233 more stable when moving and will not rotate.

[0039] like Figure 1 and Figure 2 As shown, in the technical solution of the first embodiment, the moving structure 23 further includes a connecting plate 236, the connecting plate 236 is connected to the nut seat 233, the scraper body 21 is connected to the first end of the connecting plate 236, the nut seat 233 drives the connecting plate 236 to move synchronously, and the scraper body 21 moves with the movement of the connecting plate 236. The inkjet structure 22 includes an ink storage box 221, an ink pipeline 222 and an ink nozzle 223, the ink storage box 221 is placed on the side of the connecting plate 236 away from the scraper body 21, the ink storage box 221 is connected to the first end of the ink pipeline 222, the ink nozzle 223 is connected to the second end of the ink pipeline 222, the ink nozzle 223 is located at the second end of the connecting plate 236, and the ink nozzle 223 is arranged toward the screen printing screen.

[0040] The technical solution of Example 2 differs from that of Example 1 in that the lifting part 312 is a cylinder, and the lifting part 312 includes a cylinder body, a piston and a piston rod. The piston is movably arranged in the cylinder body, and the piston rod and the piston are connected. The cylinder body has an air inlet and an air outlet. The air pump introduces high-pressure gas into the cylinder body through the air inlet. The high-pressure gas pushes the piston to move, and the piston drives the piston rod to move. The piston rod and the profiling jig 311 are hinged to drive the profiling jig 311 to rotate counterclockwise, and then the gas is discharged from the air outlet, and the piston rod descends, driving the profiling jig 311 to rotate clockwise.

[0041] The technical solution of embodiment 3 differs from that of embodiment 1 in that the lifting part 312 is a hydraulic cylinder, and the lifting part 312 includes a hydraulic cylinder, a piston, a piston rod and an oil tank. The piston is movably arranged in the hydraulic cylinder, and the piston and the piston rod are connected. The hydraulic cylinder has an oil inlet and an oil return port. The hydraulic pump compresses the hydraulic oil in the oil tank and sends it into the oil inlet. The hydraulic oil pushes the piston to move, thereby driving the piston rod to move. The piston rod and the profiling jig 311 are hinged, thereby achieving the purpose of pushing the profiling jig 311 to rotate. When the piston moves to the end point, the hydraulic oil flows back to the oil tank from the oil return port of the hydraulic cylinder, and the piston drives the piston rod to move in the opposite direction, thereby achieving the purpose of driving the profiling jig 311 to reset.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0044] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A curved glass printing device, characterized in that: include: Mounting base (10); A printing assembly (20), wherein the printing assembly (20) is arranged on the mounting base (10); A placement component (30), the placement component (30) and the printing component (20) cooperate with each other, the placement component (30) includes a curved glass placement structure (31), the curved glass placement structure (31) includes a profiling jig (311) and a lifting part (312), the first end of the profiling jig (311) is rotatably arranged on the mounting base (10), the second end of the profiling jig (311) is hinged to the first end of the lifting part (312), the second end of the lifting part (312) is arranged on the mounting base (10), and the curved glass is placed on the profiling jig (311).

2. The curved glass printing device according to claim 1, characterized in that: The curved glass placement structure (31) also includes a rotating shaft (313) and two groups of support seats (314); the profiling fixture (311) has a first matching hole; the rotating shaft (313) is inserted into the first matching hole and is interference-fitted with the first matching hole; the two groups of support seats (314) are both located on the mounting base (10) and are arranged relative to each other; the first group of support seats (314) has a second matching hole; the second group of support seats (314) has a third matching hole; the first end of the rotating shaft (313) is rotatably arranged in the second matching hole; and the second end of the rotating shaft (313) is rotatably arranged in the third matching hole.

3. The curved glass printing device according to claim 1, characterized in that: The lifting part (312) is an electric push rod, a cylinder or a hydraulic cylinder.

4. The curved glass printing device according to claim 1, characterized in that: The profiling jig (311) comprises a jig body (3111), a plane groove (3112) and a curved groove (3113); the plane groove (3112) and the curved groove (3113) are both arranged on the jig body (3111); the plane groove (3112) and the curved groove (3113) are connected to each other at opposite sides; the plane groove (3112) and the jig body (3111) are both rectangular in vertical projection, and the long side of the plane groove (3112) has an inclination angle relative to the long side of the jig body (3111).

5. The curved glass printing device according to claim 4, characterized in that: The curved glass placement structure (31) also includes a first protection pad (315), a plurality of second protection pads (316) and a plurality of third protection pads (317); the first protection pad (315) is located in the planar groove (3112) and the curved groove (3113), and is in contact with the inner walls of the planar groove (3112) and the curved groove (3113); the plurality of second protection pads (316) are connected to the inner wall of the first protection pad (315); the bottoms of the planar groove (3112) and the curved groove (3113) are both provided with a plurality of negative pressure holes (3114); the plurality of third protection pads (317) and the plurality of negative pressure holes (3114) are arranged at intervals.

6. The curved glass printing device according to claim 1, characterized in that: The placement component (30) further comprises a screen printing plate placement structure (32), the screen printing plate placement structure (32) comprises a first support frame (321) and a screen printing plate placement groove (322), the printing component (20) further comprises a screen printing plate, the first support frame (321) is arranged on the mounting base (10), the screen printing plate placement groove (322) is arranged on the first support frame (321), the screen printing plate placement groove (322) and the profiling fixture (311) are arranged correspondingly, and the screen printing plate is located in the screen printing plate placement groove (322).

7. The curved glass printing device according to any one of claims 1 to 6, characterized in that: The printing component (20) further comprises a scraper body (21), an inkjet structure (22) and a movable structure (23); the movable structure (23) is arranged on the mounting base (10); the scraper body (21) and the inkjet structure (22) are both located on the movable structure (23) and are both arranged towards the placement component (30).

8. The curved glass printing device according to claim 7, characterized in that: The movable structure (23) comprises a driving motor (231), a driving screw (232), a nut seat (233) and two groups of second support frames (234); the two groups of second support frames (234) are both arranged on the mounting base (10), and the two groups of second support frames (234) are arranged relative to each other; the driving motor (231) is arranged on the first group of the second support frames (234); the driving motor (231) and the first end of the driving screw (232) are transmission-connected; the second end of the driving screw (232) is rotatably arranged on the second group of the second support frames (234); and the nut seat (233) is movably sleeved on the circumferential outer side of the driving screw (232).

9. The curved glass printing device according to claim 8, characterized in that: The moving structure (23) further comprises a connecting plate (236), wherein the connecting plate (236) is connected to the nut seat (233), and the scraper body (21) is connected to a first end of the connecting plate (236).

10. The curved glass printing device according to claim 9, characterized in that: The inkjet structure (22) comprises an ink storage box (221), an ink pipeline (222) and an ink nozzle (223); the ink storage box (221) is placed on a side of the connecting plate (236) away from the scraper body (21); the ink storage box (221) is connected to a first end of the ink pipeline (222); the ink nozzle (223) is connected to a second end of the ink pipeline (222); and the ink nozzle (223) is located at the second end of the connecting plate (236).

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