Printing ink screen printing mold and liquid crystal display screen printing ink screen printing device

Abstract

The utility model relates to an ink screen printing mold and a liquid crystal display screen ink screen printing device, the ink screen printing mold comprises an upper mold and a lower mold, the upper mold and the lower mold are used in a matched mode, the upper mold is provided with a first plate body, the first plate body is provided with a plurality of display screen through grooves used for installing liquid crystal display screens to be subjected to screen printing, and the display screen through grooves are used for installing the liquid crystal display screens to be subjected to screen printing. The size of the display screen through groove is matched with that of the liquid crystal display screen to be subjected to silk-screen printing, so that the liquid crystal display screen cannot move randomly in the silk-screen printing process; the lower die is provided with a second plate body, the size of the second plate body is matched with that of the first plate body, the second plate body is provided with a vacuum adsorption groove corresponding to the display screen through groove, and during use, negative pressure acts on the liquid crystal display screen to be subjected to screen printing through the vacuum adsorption groove, so that the liquid crystal display screen cannot move randomly during screen printing. According to the device, multi-piece ink screen printing of products is achieved, the yield of surface screen printing of the liquid crystal display screen is effectively improved, and the production efficiency of ink screen printing is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display processing, in particular to an ink silk screen printing mold and an ink silk screen printing device for a liquid crystal display screen. Background Art

[0002] During the production process of LCD screens, in order to meet the needs of improving visual effects, adding instructions and logos, and increasing product value, it is necessary to screen-print various colors and patterns on the LCD screen to make the screen more beautiful and vivid, improve the user's visual experience and appeal, or screen-print logos and explanatory texts to facilitate user identification and management, and increase brand image and market competitiveness.

[0003] LCD screens are screen-printed with patterns of various colors on the surface, and the printing position is usually screen-printed on the surface of glass and polarizer. At present, when LCD screens are produced, they are almost all printed on a single piece, which is a very inefficient production method.

[0004] Therefore, how to improve the production efficiency of silk screen patterns has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a silk screen printing mold which realizes silk screen printing of multiple pieces of product by using upper and lower molds to fit the product together, and then printing ink onto the surface of the product under a certain pressure to form a specific pattern, and a liquid crystal display screen ink silk screen printing device equipped with the mold.

[0006] The specific plan is as follows:

[0007] One of the purposes of the utility model is to provide an ink screen printing mold, comprising an upper mold and a lower mold, the upper mold and the lower mold are used in combination, the upper mold is provided with a first plate body, the first plate body is provided with a plurality of display screen grooves for installing a liquid crystal display screen to be screen-printed, and the display screen grooves match the size of the liquid crystal display screen to be screen-printed, so that it will not move randomly during the screen printing process; the lower mold is provided with a second plate body, the second plate body matches the size of the first plate body, and the second plate body is provided with a vacuum adsorption groove corresponding to the display screen groove, when in use, negative pressure acts on the liquid crystal display screen to be screen-printed through the vacuum adsorption groove, so that it will not move randomly during screen printing.

[0008] Furthermore, the display screen through slots are distributed in a 3*9 array on the first plate.

[0009] Furthermore, the display screen through slot is provided with a retreat hole.

[0010] Furthermore, the second plate body is also provided with a plurality of mold vacuum adsorption grooves for adsorbing the upper mold.

[0011] Furthermore, anti-scratch pads are respectively provided on both sides of the top of the upper mold, and the display screen through groove is provided in the middle position of the two anti-scratch pads.

[0012] Furthermore, the first plate body is further provided with a first handle, and the first handle is integrally extended from a side edge of the first plate body; the second plate body is further provided with a second handle, and the second handle is integrally extended from a side edge of the second plate body.

[0013] Furthermore, the first plate body and the second plate body are made of aluminum plate.

[0014] Furthermore, the surface roughness of the aluminum plate is not greater than Ra 0.8um.

[0015] Another object of the utility model is to provide an ink silk screen printing device for a liquid crystal display screen, comprising a silk screen printing platform for placing an ink silk screen printing mold, wherein the ink silk screen printing mold is the above-mentioned ink silk screen printing mold, a plurality of vacuum air holes are provided in the middle of the top of the silk screen printing platform, and a mold positioning assembly for fixing the ink silk screen printing mold is provided around the vacuum air holes.

[0016] Furthermore, the mold positioning assembly includes two lateral stops correspondingly arranged in the lateral direction and two longitudinal stops correspondingly arranged in the longitudinal direction.

[0017] Beneficial effects:

[0018] The utility model has a simple structure. After the upper and lower molds are fitted on the product, the ink is printed onto the product surface by a certain pressure using a screen printer and a screen with a pattern to form a specific pattern and text, thereby realizing the ink screen printing of multiple products.

[0019] By using the device of the utility model, the yield rate of screen printing on the surface of the liquid crystal display screen can be effectively improved, and the production efficiency of ink screen printing can be greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the combined structure of the upper mold and the lower mold in Example 1;

[0021] Figure 2 This is a schematic diagram of the planar structure of the upper mold in Example 1;

[0022] Figure 3 This is a schematic diagram of the planar structure of the mold in Example 1;

[0023] Figure 4 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0024] Figure 5This is a schematic diagram of the combined structure of Example 1 and the screen printing platform;

[0025] Figure 6 This is a schematic diagram of the planar structure of the screen printing platform of Example 2;

[0026] Figure 7 This is a schematic diagram of the planar structure of the second spring top member in Example 2.

[0027] Wherein: 1-upper mold, 11-first plate body, 12-display screen through groove, 121-retreat hole, 13-first handle, 14-anti-scratch gasket, 2-lower mold, 21-second plate body, 22-vacuum adsorption groove, 23-second handle, 24-mold vacuum adsorption groove, 3-screen printing platform, 31-vacuum air hole, 32-first horizontal block, 33-longitudinal block, 34-second horizontal block, 35-first spring top piece, 36-second spring top piece, 361-push plate, 362-push rod, 363-spring. DETAILED DESCRIPTION

[0028] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0030] Embodiment 1:

[0031] This embodiment 1 provides an ink screen printing mold, including an upper mold 1 and a lower mold 2, and the upper mold 1 and the lower mold 2 are used in combination.

[0032] Specific:

[0033] The upper mold 1 of the utility model is provided with a first plate body 11, on which a plurality of display screen slots 12 are provided for mounting the LCD screen to be screen-printed, and the size of the display screen slots 12 matches the LCD screen to be screen-printed, so that it will not move randomly during the screen printing process, thereby ensuring the screen printing effect.

[0034] The number of display screen slots 12 can be set according to actual needs. As a preferred solution of the present invention, the first plate body 11 can be made of a square aluminum plate, and the display screen slots 12 are distributed in an array on the first plate body 11, for example, in a 3*9 array.

[0035] As a preferred solution of the present invention, in order to avoid the phenomenon of the mold being stuck on the edge of the liquid crystal display screen, the display screen slot 12 is provided with at least one retreat hole 121, for example: a retreat hole 121 is provided at a corner of the display screen slot 12, as shown in the attached figure. Figure 4 As shown, a circular retreat hole 121 protruding outward is also provided at one corner of the display screen through slot 12 .

[0036] In addition, considering that the edge of the LCD screen may scratch the screen printing screen during the actual screen printing process, in order to avoid this problem, in some preferred designs, protruding anti-scratch pads 14 are respectively provided on both sides of the top of the upper mold, and the display screen through groove 12 is provided in the middle of the anti-scratch pads 14. Specifically, the anti-scratch pads 14 can be made of plastic, and can also be polished and cut into right angles during production.

[0037] As a preferred solution of the present invention, the first plate body 11 is further provided with a first handle 13 for facilitating the lifting of the upper mold 1 ; and the first handle 13 can be integrally extended from a side edge of the first plate body 11 .

[0038] The lower mold 2 of the utility model is provided with a second plate 21, and the size of the second plate 21 matches that of the first plate 11, so as to realize the alignment and fit of the upper mold 1 and the lower mold 2. And the second plate 21 is provided with a vacuum adsorption groove 22 corresponding to the through groove 12 of the display screen. This design is to adapt to the vacuum adsorption function of the ink screen printing device. The screen printing platform of the ink screen printing device is provided with a vacuum hole, which forms a negative pressure by sucking air upward to fix the product to be processed firmly. When the utility model is in use, the negative pressure acts on the liquid crystal display screen to be screen-printed through the vacuum adsorption groove 22, so that it will not move randomly during screen printing.

[0039] In the present invention, the position and number of the vacuum adsorption grooves 22 correspond to the display screen grooves 12, that is, one display screen groove 12 corresponds to at least one vacuum adsorption groove 22. For example, when the display screen grooves 12 are distributed in a 3*9 array, the vacuum adsorption grooves 22 are also distributed in a 3*9 array.

[0040] In addition, as a preferred solution of the present invention, the second plate 21 is further provided with a plurality of mold vacuum adsorption grooves 24 for adsorbing the upper mold 1, such as Figure 3 The mold vacuum adsorption grooves 24 are arranged vertically as shown in FIG.

[0041] As a preferred solution of the present invention, the second plate body 21 is further provided with a second handle 23 for easy lifting and lowering of the mold 2 ; and the second handle 23 can be integrally extended from a side edge of the second plate body 21 .

[0042] As a preferred solution of the present invention, the first plate body 11 and the second plate body 21 are made of aluminum plates, which are light in weight and can save a lot of labor.

[0043] In addition, after the silk-screen printing is completed, the LCD screen needs to slide from the second plate body 21 into the collection box. In order to avoid scratches on the LCD screen caused by the surface of the material during the sliding process, in the preferred solution, it is also necessary to make some requirements on the surface roughness of the aluminum plate, especially for the second plate body 21, the surface roughness can be required to be no greater than Ra 0.8um.

[0044] Embodiment 2:

[0045] This embodiment 2 provides an ink screen printing device for a liquid crystal display, including a screen printing platform 3 for placing an ink screen printing mold, the ink screen printing mold is the ink screen printing mold described in embodiment 1, a plurality of vacuum air holes are provided in the middle of the top of the screen printing platform 3, and a mold positioning assembly for fixing the ink screen printing mold is provided around the vacuum air holes.

[0046] The mold positioning assembly can be set up using existing technology. As a preferred solution of the utility model, the mold positioning assembly includes two first transverse stoppers 32 and second transverse stoppers 34 arranged in a corresponding manner in the transverse direction, and two longitudinal stoppers 33 designed in a corresponding manner in the longitudinal direction. A channel is reserved between the first transverse stopper 32 and the second transverse stopper 34 on the transverse side for placing the handle.

[0047] In the actual production process, in order to improve versatility and adaptability, the fixed range of the mold positioning component is often larger than the size of the ink screen printing mold. In order to ensure the stability of the ink screen printing mold during the screen printing process, it is also necessary to design some structural designs for fine-tuning and fixing in the mold positioning component, such as Figure 6 As shown in the figure, a first spring top piece 35 is provided on the longitudinal block 33 on one side, and a second spring top piece 36 is provided on the second transverse block 34. The final positioning of the ink screen printing mold is completed by the first spring top piece 35 and the second spring top piece 36.

[0048] There are various structures of the first spring top member 35 and the second spring top member 36. Figure 7 For example, the structure of the second spring top member 36 is briefly introduced, which includes a push plate 361, and a plurality of push rods 362 are connected to one side of the push plate 361, and a spring 363 is sleeved on the push rod 362. When installed, the push rod 362 moves through the second transverse block 34, and the spring 363 is located between the push plate 361 and the second transverse block 34. In some simple solutions, a block structure can also be directly used to directly fill the gap between the ink screen printing mold and the mold positioning component.

[0049] The working principle of this utility model:

[0050] When the device of the utility model is used for ink screen printing, the upper and lower molds are first fitted together, and the whole stack of glass is placed in the display screen groove of the upper mold. The upper and lower molds are fixed by the mold positioning assembly, and then the ink screen printing process is carried out. After the printing is completed, the upper and lower molds are taken out and separated, and the LCD screen on the lower mold is dumped (or pushed down by a scraper) into a collection box.

[0051] The utility model has the advantages of simple structure, convenient operation, rapid batch ink silk screen printing of liquid crystal display screens, and high production efficiency.

[0052] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. An ink screen printing mold, characterized in that: It comprises an upper mould and a lower mould, which are used together. The upper mould is provided with a first plate body, on which a plurality of display screen slots are provided for mounting a liquid crystal display screen to be screen-printed, and the display screen slots match the size of the liquid crystal display screen to be screen-printed, so that the liquid crystal display screen will not move randomly during the screen printing process; the lower mould is provided with a second plate body, the size of the second plate body matches the size of the first plate body, and the second plate body is provided with a vacuum adsorption slot corresponding to the display screen slot. When in use, negative pressure acts on the liquid crystal display screen to be screen-printed through the vacuum adsorption slot, so that the liquid crystal display screen will not move randomly during screen printing.

2. The ink screen printing mold according to claim 1, characterized in that: The display screen through slots are distributed on the first plate in a 3*9 array.

3. The ink screen printing mold according to claim 1, characterized in that: The display screen through slot is provided with a retreat hole.

4. The ink screen printing mold according to claim 1, characterized in that: The second plate body is also provided with a plurality of mold vacuum adsorption grooves for adsorbing the upper mold.

5. The ink screen printing mold according to claim 1, characterized in that: Anti-scratch pads are respectively arranged on both sides of the top of the upper mold, and the display screen through groove is arranged in the middle position of the two anti-scratch pads.

6. The ink screen printing mold according to claim 1, characterized in that: The first plate body is further provided with a first handle, and the first handle is integrally extended from one side of the first plate body; the second plate body is further provided with a second handle, and the second handle is integrally extended from one side of the second plate body.

7. The ink screen printing mold according to claim 6, characterized in that: The first plate body and the second plate body are made of aluminum plate.

8. The ink screen printing mold according to claim 7, characterized in that: The surface roughness of the aluminum plate is no greater than Ra0.8um.

9. An ink screen printing device for a liquid crystal display screen, comprising a screen printing platform for placing an ink screen printing mold, characterized in that: The ink screen printing mold is the ink screen printing mold according to any one of claims 1-8, a plurality of vacuum air holes are provided in the middle of the top of the screen printing platform, and mold positioning components for fixing the ink screen printing mold are provided around the vacuum air holes.

10. The liquid crystal display screen ink screen printing device according to claim 9, characterized in that: The mold positioning assembly comprises two transverse stoppers which are arranged correspondingly in the transverse direction and two longitudinal stoppers which are arranged correspondingly in the longitudinal direction.

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