Cover plate glass printing equipment

Abstract

The utility model provides cover plate glass printing equipment which comprises a fixing assembly, the fixing assembly comprises a containing structure and a groove structure, the containing structure comprises a containing groove, the groove structure is arranged at the bottom of the containing groove, and the groove structure corresponds to a semi-through hole of glass to be sprayed; the light source assembly is arranged in the groove structure, and the height of the light source assembly in the vertical direction is smaller than the depth of the groove structure. According to the technical scheme, the problem that the semi-through hole printing effect is difficult to check in the large-size cover plate glass production process in the prior art is effectively solved.

Description

Technical Field

[0001] This application relates to the technical field of glass processing, and particularly relates to a printing device for cover glass. Background Art

[0002] During the development of in-vehicle display applications, in pursuit of aesthetics, the central control display is getting larger and larger, and the components are developing towards dual-screen and triple-screen. The central control and instrument are concentrated on a large-size cover plate, and many indicator lights are displayed through semi-permeable holes, such as shift indicator lights, left and right turn signals, and abnormal alarm lights.

[0003] In actual production, for in-vehicle cover plates with semi-permeable holes, generally, after printing, the cover plates are manually taken, the cover glass is moved to a light source for visual inspection by the naked eye, and after passing the inspection, continuous feeding is carried out, and sampling inspection and control are adopted during the production process.

[0004] In the prior art, for large-size products, the inconvenient picking and placing affects the self-inspection of employees, and it is impossible to perform full inspection on each piece during the production process. It can only be sent for inspection after solid baking, resulting in defective products that cannot be repaired and can only be scrapped. The value of a large-size single piece is relatively high, causing a large amount of defective costs, such as CN110208971A. Utility Model Content

[0005] One technical problem to be solved by this application is: during the production process of large-size cover glass, there is a problem that it is difficult to inspect the printing effect of semi-permeable holes.

[0006] To solve the above technical problem, this application provides a printing device for cover glass.

[0007] A printing device for cover glass provided by this application includes: a fixing component, the fixing component includes a receiving structure and a groove structure, the receiving structure includes a receiving groove, the groove structure is arranged at the bottom of the receiving groove, and the groove structure is correspondingly arranged with the semi-permeable holes of the glass to be sprayed; a light source component, the light source component is arranged in the groove structure, and the height of the light source component in the vertical direction is less than the depth of the groove structure.

[0008] In some embodiments, the light source component includes a light source structure and a vertical driving structure, the output end of the vertical driving structure is connected to the light source structure, and the vertical driving structure is connected to the groove structure.

[0009] In some embodiments, there are two vertical driving structures, and the two vertical driving structures are respectively rotatably connected to both ends of the light source structure.

[0010] In some embodiments, the light source structure includes a plurality of light-emitting parts and a plurality of switches, the plurality of light-emitting parts are arranged in a matrix, and the plurality of switches are correspondingly arranged with the plurality of light-emitting parts one by one.

[0011] In some embodiments, the fixing component further includes a negative pressure adsorption structure, which includes an air suction groove and an air path. The air suction groove is arranged at the bottom of the accommodating groove, and the air path penetrates through the accommodating structure and is communicated with the air suction groove.

[0012] In some embodiments, the negative pressure adsorption structure further includes a support part, which is arranged at the bottom of the air suction groove, and the upper surface of the support part is higher than the bottom surface of the air suction groove.

[0013] In some embodiments, the support part includes a first bearing part and a plurality of second bearing parts. The plurality of second bearing parts are connected to the first bearing part and are arranged at intervals. The length of the second bearing part is less than the width of the air suction groove, and the length of the first bearing part is less than the length of the air suction groove.

[0014] In some embodiments, the thickness of the glass to be sprayed is greater than the depth of the accommodating groove structure, and the difference between the thickness of the glass to be sprayed and the depth of the accommodating groove structure is 0.1 mm to 0.2 mm.

[0015] In some embodiments, the fixing component is made of polyether ether ketone material.

[0016] In some embodiments, the light source component is a white light source.

[0017] Through the above technical solutions, for the cover glass printing equipment provided by the present application, the glass to be sprayed is placed in the accommodating groove. At this time, the position of the semi-permeable hole on the cover glass is above the groove structure. After the glass spraying is completed, the light source component is turned on, and the light source component irradiates the semi-permeable hole of the cover glass. The staff observes the semi-permeable hole to ensure that the semi-permeable hole meets the quality standards. During the inspection process, there is no need to take out the glass, and the operation is convenient. The technical solution of the present application effectively solves the problem that it is difficult to inspect the printing effect of the semi-permeable hole during the production process of large-size cover glass in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Shows the structural schematic diagram of the cover glass printing equipment disclosed in Embodiment 1 of the present application;

[0020] Figure 2 Shows Figure 1 The top view structural schematic diagram of the cover glass printing equipment;

[0021] Figure 3The left - view structural schematic diagram of the light - source assembly of the cover - plate glass printing device disclosed in the second embodiment of the present application is shown;

[0022] Figure 4 The top - view structural schematic diagram of the light - source assembly of the cover - plate glass printing device disclosed in the third embodiment of the present application is shown.

[0023] Explanation of reference numerals:

[0024] 10. Fixing assembly; 11. Accommodating structure; 111. Accommodating groove; 12. Groove structure; 13. Negative - pressure adsorption structure; 131. Suction groove; 132. Gas path; 133. Support part; 1331. First bearing part; 1332. Second bearing part; 20. Light - source assembly; 21. Light - source structure; 211. Light - emitting part; 22. Vertical driving structure. Detailed implementation manners

[0025] The following further describes the implementation manners of the present application in detail with reference to the drawings and embodiments. The detailed descriptions and drawings of the following embodiments are used to exemplarily illustrate the principle of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms, not limited to the specific embodiments described herein, but including all technical solutions falling within the scope of the claims.

[0026] These embodiments of the present application are provided to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values described in these embodiments should be construed as merely exemplary, rather than as limitations.

[0027] It should be noted that in the description of the present application, unless otherwise stated, "a plurality of" means greater than or equal to two; the orientation or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present application. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0028] In addition, the "first", "second" and similar terms used in the present application do not denote any order, quantity or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range. Words such as "including" or "comprising" mean that the elements before this word cover the elements listed after this word, and do not exclude the possibility of also covering other elements.

[0029] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. When it is described that a specific device is located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0030] All terms used in this application have the same meanings as those understood by those of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as, should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0031] Technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification.

[0032] As Figure 1 and Figure 2 As shown in

[0033] Applying the technical solution of Embodiment 1, place the glass to be sprayed in the receiving groove 111. At this time, the position of the semi-permeable hole on the cover glass is above the groove structure 12. After the glass spraying is completed, turn on the light source assembly 20. The light source assembly 20 irradiates the semi-permeable hole of the cover glass, and the staff observes the semi-permeable hole to ensure that the semi-permeable hole meets the quality standards. During the inspection process, there is no need to take out the glass, and the operation is convenient. The technical solution of Embodiment 1 effectively solves the problem in the prior art that it is difficult to inspect the printing effect of the semi-permeable hole during the production of large-size cover glass.

[0034] As Figure 1 and Figure 2As shown, in the technical solution of the first embodiment, the fixing component 10 also includes a negative pressure adsorption structure 13, and the negative pressure adsorption structure 13 includes an air suction groove 131 and an air path 132. The air suction groove 131 is arranged at the bottom of the receiving groove 111, and the air path 132 runs through the receiving structure 11 and is connected with the air suction groove 131. The air path 132 is connected to the vacuum pump, and the glass is placed in the receiving groove 111. The bottom surface of the glass contacts the upper edge of the air suction groove 131. The vacuum pump is evacuated, and the air in the air suction groove 131 is reduced, and the air pressure is reduced. The glass is adsorbed in the receiving groove 111 and is not easy to shake. The glass is fixed by negative pressure adsorption, and the upper surface of the glass will not be touched, resulting in poor spraying effect. The depth of the air suction groove 131 is 3mm to 5mm. While achieving negative pressure adsorption, the containing volume of the air suction groove 131 is minimized to improve the air extraction efficiency.

[0035] like Figure 1 and Figure 2 As shown, in the technical solution of the first embodiment, the negative pressure adsorption structure 13 also includes a support portion 133, which is arranged at the bottom of the air suction groove 131, and the upper surface of the support portion 133 is higher than the bottom surface of the air suction groove 131. The support portion 133 and the bottom of the receiving groove 111 jointly support the bottom surface of the glass, and the curvature of the surface shape of the two is set according to the surface shape of the glass, so that the glass fits the two. The support portion 133 is arranged in the air suction groove 131 to support the glass, so as to avoid bending of the glass when being adsorbed due to the large size of the air suction groove 131, thereby causing the spraying position to shift.

[0036] like Figure 1 and Figure 2 As shown, in the technical solution of the first embodiment, the support part 133 includes a first bearing part 1331 and a plurality of second bearing parts 1332, the plurality of second bearing parts 1332 are connected to the first bearing part 1331, the plurality of second bearing parts 1332 are arranged at intervals, the length of the second bearing part 1332 is less than the width of the air suction groove 131, and the length of the first bearing part 1331 is less than the length of the air suction groove 131. There is a predetermined distance between the two ends of the first bearing part 1331 and the side wall of the air suction groove 131, and there is a predetermined distance between the two ends of the second bearing part 1332 and the side wall of the air suction groove 131. At this time, the first bearing part 1331 and the second bearing part 1332 do not completely divide the internal space of the air suction groove 131. Only one air path 132 is provided to realize the extraction of air from various places in the air suction groove 131, and at the same time, provide support force for the glass to prevent deformation of the glass.

[0037] like Figure 1 and Figure 2As shown, in the technical solution of the first embodiment, the thickness of the glass to be sprayed is greater than the depth of the accommodating groove 111 structure, and the difference between the thickness of the glass to be sprayed and the depth of the accommodating groove 111 structure is 0.1 mm to 0.2 mm. When the glass is placed in the accommodating groove 111, the upper surface of the glass is higher than the upper edge of the accommodating groove 111. During the spraying process, if there is too much ink, the ink flows down from the edge of the glass, preventing the ink from accumulating on the upper surface of the glass and affecting the spraying surface quality.

[0038] As Figure 1 and Figure 2 shown, in the technical solution of the first embodiment, the fixing component 10 is made of polyether ether ketone material. The surface of the polyether ether ketone is soft, and it will not scratch the glass when the glass is placed on it. The cover glass printing device further includes a support component, which is arranged at the bottom of the fixing component 10 and connected to the fixing component 10. The support component is made of bakelite material, and the bakelite material has high strength and is not easily deformed, supporting the fixing component 10 to prevent the fixing component 10 from being bent or deformed during handling.

[0039] As Figure 1 and Figure 2 shown, in the technical solution of the first embodiment, the light source component 20 is a white light source. The light source component emits white light, and the rest cannot transmit white light through the semi-permeable holes and appears dark. The method of using a white light source for detection has a more obvious contrast, which is convenient for the staff to observe whether the semi-permeable holes meet the standards.

[0040] As Figure 3 shown, the difference between the technical solution of the second embodiment and the technical solution of the first embodiment is that the light source component 20 includes a light source structure 21 and a vertical driving structure 22. The output end of the vertical driving structure 22 is connected to the light source structure 21, and the vertical driving structure 22 is connected to the groove structure 12. The vertical driving structure 22 drives the light source structure 21 to move in the vertical direction, changing the distance between the light source structure 21 and the glass, and reducing the illumination brightness on the glass surface to meet the usage requirements in different environments, with better versatility.

[0041] As Figure 3 shown, in the technical solution of the second embodiment, there are two vertical driving structures 22, and the two vertical driving structures 22 are respectively rotatably connected to both ends of the light source structure 21. The two vertical driving structures 22 respectively control the heights of both ends of the light source structure 21, thereby changing the illumination angle, enabling the staff to observe the semi-permeable holes from multiple illumination angles, and having a better inspection effect.

[0042] As Figure 4As shown in the figure, the technical solution of the third embodiment is different from that of the first embodiment in that the light source structure 21 includes a plurality of light emitting parts 211 and a plurality of switches. The plurality of light emitting parts 211 are arranged in a matrix, and the plurality of switches are provided in one-to-one correspondence with the plurality of light emitting parts 211. The plurality of light emitting parts 211 are individually controlled by the corresponding switches. According to the specific position of the semi-permeable hole, it is controlled whether some of the light emitting parts 211 are turned on. The light emitting parts 211 that are far from the semi-permeable hole do not need to be turned on, avoiding energy waste. By controlling the number of the turned-on light emitting parts 211, the light intensity at the semi-permeable hole can be changed to meet various usage requirements.

[0043] The cover glass printing device further includes a printing machine. The printing machine includes a workbench, and a guide post is arranged on the workbench. The support assembly and the fixing assembly 10 have first positioning holes corresponding to the guide post, and the guide post is inserted into the first positioning holes to position the support assembly and the fixing assembly 10. The screen printing plate has second positioning holes corresponding to the guide post, and the guide post is inserted into the second positioning holes to position the screen printing plate. At this time, the relative positions of the fixing assembly 10 and the screen printing plate remain unchanged, avoiding poor printing effects caused by the change of their relative positions during the printing process.

[0044] As described above, the technical solution adopted by this application to solve its technical problems is as follows: A large-size printing jig (cover glass printing equipment) and method for a cover plate with semi-permeable holes. The jig structure includes a printing support main body (fixing component 10) and an auxiliary support plate (support component). The printing support main body includes a product main bearing surface (accommodating groove 111), a vacuum gas accumulation groove (suction groove 131), a product window bearing surface (support part 133), and a vacuum suction hole (air path 132). The auxiliary support plate includes a white light source (light source component 20). The printing support main body is made of transparent PEEK material, and the auxiliary support plate is made of bakelite or other materials with higher structural strength. The printing main body and the auxiliary support plate are bonded into a whole by glue to form the printing jig. The main bearing surface of the jig is sunken at a certain height in imitation of the product shape to limit the product. The vacuum gas accumulation groove is connected to the vacuum hole to vacuum-adsorb the product. The designed position of the white light source is consistent with the position of the semi-permeable holes. After printing on the product surface, the white light passes through the support main body and penetrates the icon holes, and the operator can immediately conduct a light inspection on the icon holes, which can quickly detect and identify appearance defects of the semi-permeable holes, such as serrations, unevenness, black and white dots, etc. If there are problems, the icon can be immediately cleaned with alcohol and reprinted. The operator can conduct a full inspection of the icon defects after each printing, and promptly repair the defective products, greatly improving the product yield. A contour inspection jig for a curved cover plate has the following usage method: The jig is installed on the printing machine platform, the vacuum hole is connected to the vacuum, and the white light source is powered on to continuously provide brightness. Place a large-size product on the main bearing surface of the jig. The main bearing surface is in imitation of the product shape to achieve positioning. Then turn on the vacuum adsorption function of the machine, and the product is adsorbed and fixed in the jig. Start the printing machine to print on the surface. After printing, the product is not taken out. The light of the white light source passes through the jig and through the semi-permeable holes. The operator inspects the appearance inside the holes through the high-brightness light. If the product has no defects, it can be taken out and transferred to the subsequent process. If there are defects inside the holes, such as serrations, unevenness, black and white dots, etc., the semi-permeable ink can be immediately wiped with alcohol. After wiping clean, reprint. The method of brightening the light improves the detection ability of the operator. Avoiding multiple pick-up and placement collisions and defects by not picking up and placing the jig for inspection, and at the same time achieving full inspection and timely repair during the operator's operation process, greatly improving the yield. This application is for printing large-size cover plates with semi-permeable holes, without limiting the size and shape, and without limiting the shape and quantity of the semi-permeable holes. Large-size products have high value, and the cost loss caused by defects is high. This method can achieve full inspection and rework, greatly improving the yield of printing semi-permeable holes. The support main body of the jig is made of transparent PEEK material and will not cause scratches when in long-term contact with glass. The main bearing surface of the support main body is designed as a groove in imitation of the product shape, and the sinking depth is 0.1 mm less than the glass thickness, ensuring that the exposed height of the upper surface of the product during operation is 0.1 mm. The vacuum gas accumulation groove sinks 3 - 5 mm and is connected to the vacuum hole of the equipment to form a vacuum chamber when the product is placed, achieving a whole-surface adsorption of the product, enhancing the adsorption strength, and ensuring the fixed position of the product during the printing process.The product window bearing surface and the main bearing surface are at the same plane height to support the window area and ensure the flatness of the support for the entire surface of the product. The auxiliary support plate is mainly made of bakelite or metal and plays a major structural support role to ensure the structural strength and flatness accuracy of the entire jig. The auxiliary support plate is designed with white light source slots at corresponding positions according to the positions of the semi-permeable holes of the product to install white light sources, ensuring continuous light source supply for workers to inspect during printing production. The differences between the present invention and the prior art are as follows: When printing semi-permeable products by conventional processes, for large-sized products, especially products with sizes ranging from 700 to 1500 mm, it is inconvenient for personnel to pick up and place them. They tend to focus on one part and neglect the other, and the products are extremely prone to being bumped and scratched. It is difficult for operators to conduct self-inspection after printing and taking out the products. Usually, after printing, the products are directly baked to surface dryness, and then quality inspectors conduct first-piece inspection and in-process inspection to control product abnormalities. The products then go through a solid baking furnace for solid baking, and after solid baking, a full inspection of the appearance of the printing is carried out. When the products are surface-dried after baking and during the full inspection of the printing appearance, the defective products found cannot be wiped and reworked, and can only be scrapped. Moreover, due to the large size of the products, it is difficult to conduct quality first-piece and in-process inspection operations, and they are prone to being bumped and causing defects. Also, the natural light inspection ability is weak and cannot effectively detect defects. This application can achieve self-inspection by lighting each piece during the printing process. After printing, the glass does not need to be taken out for direct inspection. When appearance defects are found, they can be repaired in a timely manner, avoiding the generation of defects due to multiple pick-up and placement operations. At the same time, it reduces the outflow of defective products to the baking process, improves the product yield, and saves costs.

[0045] So far, the embodiments of this application have been described in detail. To avoid obscuring the concept of this application, some details well-known in the art have not been described. Those skilled in the art can clearly understand how to implement the technical solutions applied here based on the above description.

[0046] Although some specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of this application. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be equivalently replaced without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way.

Claims

1. A cover glass printing device, characterized in that: include: A fixing assembly (10), the fixing assembly (10) comprising a containing structure (11) and a groove structure (12), the containing structure (11) comprising a containing groove (111), the groove structure (12) being arranged at the bottom of the containing groove (111), and the groove structure (12) being arranged corresponding to a semi-transparent hole of the glass to be sprayed; A light source assembly (20), wherein the light source assembly (20) is arranged in the groove structure (12), and the height of the light source assembly (20) in the vertical direction is smaller than the depth of the groove structure (12).

2. The cover glass printing device according to claim 1, characterized in that: The light source assembly (20) comprises a light source structure (21) and a vertical driving structure (22), wherein an output end of the vertical driving structure (22) is connected to the light source structure (21), and the vertical driving structure (22) is connected to the groove structure (12).

3. The cover glass printing device according to claim 2, characterized in that: The vertical driving structures (22) include two, and the two vertical driving structures (22) are rotatably connected to two ends of the light source structure (21) respectively.

4. The cover glass printing device according to claim 2, characterized in that: The light source structure (21) comprises a plurality of light-emitting parts (211) and a plurality of switches, the plurality of light-emitting parts (211) are arranged in a matrix, and the plurality of switches are arranged in a one-to-one correspondence with the plurality of light-emitting parts (211).

5. The cover glass printing device according to claim 1, characterized in that: The fixing component (10) further comprises a negative pressure adsorption structure (13), wherein the negative pressure adsorption structure (13) comprises an air suction groove (131) and an air path (132), wherein the air suction groove (131) is arranged at the bottom of the containing groove (111), and the air path (132) passes through the containing structure (11) and is in communication with the air suction groove (131).

6. The cover glass printing device according to claim 5, characterized in that: The negative pressure adsorption structure (13) further comprises a support portion (133), wherein the support portion (133) is arranged at the bottom of the air suction groove (131), and the upper surface of the support portion (133) is higher than the bottom surface of the air suction groove (131).

7. The cover glass printing device according to claim 6, characterized in that: The supporting portion (133) includes a first bearing portion (1331) and a plurality of second bearing portions (1332), wherein the plurality of second bearing portions (1332) are connected to the first bearing portion (1331), and the plurality of second bearing portions (1332) are arranged at intervals, wherein the length of the second bearing portion (1332) is smaller than the width of the air suction groove (131), and the length of the first bearing portion (1331) is smaller than the length of the air suction groove (131).

8. The cover glass printing device according to claim 1, characterized in that: The thickness of the glass to be sprayed is greater than the depth of the receiving groove (111) structure, and the difference between the thickness of the glass to be sprayed and the depth of the receiving groove (111) structure is 0.1 mm to 0.2 mm.

9. The cover glass printing device according to claim 1, characterized in that: The fixing component (10) is made of polyetheretherether copper material.

10. The cover glass printing device according to claim 1, characterized in that: The light source assembly (20) is a white light source.

Images