Demoulding mechanism of etching machine for liquid crystal display screen

Abstract

The utility model discloses a demoulding mechanism of an etching machine for a liquid crystal display screen, which belongs to the technical field of liquid crystal display screens and comprises a working table, an etching groove is fixedly sleeved in the middle of the working table, a support adsorption mechanism is arranged on the etching groove, a display screen glass substrate is arranged at the top of the support adsorption mechanism, and a demoulding mechanism is arranged on the top of the display screen glass substrate. Two air blowing mechanisms are arranged on the workbench, and two sets of first electric push rods are fixedly installed on the bottom face of the workbench. According to the device, when a second electric push rod is inserted between an adsorption pad and a display screen glass substrate, a rubber pad moves to the position above the side portion of the display screen glass substrate, a third electric push rod is used for driving a pressing plate and the rubber pad to move downwards, and the rubber pad is used for extruding the top face of the display screen glass substrate; and a display screen glass substrate subjected to demolding is clamped and fixed through a wedge-shaped scraper knife and a rubber pad, so that the demolding stability is ensured, and the working quality of the etching machine demolding mechanism for the liquid crystal display screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display screens, in particular to a demoulding mechanism of an etching machine for liquid crystal display screens. Background Art

[0002] LCD etching is a specific technique used to create logos or patterns on LCD screens. This technique etches the glass substrate of the LCD to achieve a specific visual effect. Etcher demolding refers to the process of separating the etched workpiece from the mold during the etching process. This process involves two main techniques: wet etching and dry etching, which play a key role in semiconductor and display manufacturing.

[0003] After searching, the utility model patent with announcement number CN211445535U discloses a glass substrate etching and demolding device, which mainly includes a demolding mechanism, which is composed of a robotic arm, a wedge-shaped scraper, a Roots blower, and an air blast channel; the demolding mechanism is located in a demolding cavity, and an air blast channel runs through the demolding cavity; support plates are fixedly connected on both sides of the demolding cavity, and a robotic arm is movably connected to the support plate; a wedge-shaped scraper is hinged on the robotic arm; an etching groove is provided at the bottom of the support plate; the etching groove is located at the top of the base, and the etching groove is connected to the air blast channel; this patent drives the robotic arm to drive the wedge-shaped scraper, shovel into the edge gap between the glass substrate and the adsorption pad, and advances evenly and slowly to lift the glass substrate to separate it from the adsorption pad, and at the same time injects gas into the demolding cavity to maintain uniform internal and external pressure when the glass substrate is demolded, avoiding warping and deformation. It has high yield, strong stability, mobility, convenience in use, good economic applicability, and broad market prospects.

[0004] However, the aforementioned patent has the following shortcomings: when using a wedge-shaped scraper to release the glass substrate from the adsorption pad, the glass is fixed to the upper portion of the glass substrate, which can easily cause the glass substrate to fall off the wedge-shaped scraper, affecting the quality of the lower mold; and relying solely on a Roots blower to blow natural air to the glass substrate is not easy to separate the glass substrate from the adsorption pad. The middle portion of the bottom surface of the glass substrate and the adsorption pad have an adsorption force, which makes it difficult for the wedge-shaped scraper to lift the glass substrate. To address this problem, we propose a demolding mechanism for an etching machine for liquid crystal displays. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a demoulding mechanism for an etching machine for a liquid crystal display screen.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] A demolding mechanism of an etching machine for a liquid crystal display screen comprises a workbench, an etching groove is fixedly sleeved on the middle part of the workbench, a supporting adsorption mechanism is provided on the etching groove, a display screen glass substrate is provided on the top of the supporting adsorption mechanism, two blowing mechanisms are provided on the workbench, two groups of first electric push rods are fixedly installed on the bottom surface of the workbench, the output ends of the two groups of first electric push rods respectively extend to the top of the workbench and are fixedly connected to a lifting frame, two second electric push rods are fixedly installed on the two lifting frames, the output ends of the second electric push rods are respectively fixedly connected to a wedge-shaped scraper, the top surface of the wedge-shaped scraper is fixedly connected to a vertical pole, the top end of the vertical pole is fixedly connected to a top plate, a third electric push rod is fixedly installed on the top plate, the output end of the third electric push rod extends to the bottom of the top plate and is fixedly connected to a pressure plate, and a rubber pad is provided on the bottom surface of the pressure plate.

[0008] As a preferred solution of the present invention, the blowing mechanism includes a heating box fixedly connected to the bottom surface of the workbench, an exhaust tube is provided on the outside of the heating box, an exhaust fan is fixedly installed in the inner cavity of the exhaust tube, an electric heating tube is fixedly installed in the inner cavity of the heating box, a plurality of air guide tubes are fixedly connected to the top of the heating box, the top ends of the plurality of air guide tubes are fixedly connected to the top of the workbench and fixedly connected to the air guide box, and a blowing nozzle is fixedly connected to the side of the air guide box.

[0009] As a preferred solution of the present invention, the supporting adsorption mechanism includes a fourth electric push rod fixedly installed at the bottom of the etching groove, the output end of the fourth electric push rod extends to the inner cavity of the etching groove and is fixedly connected to a lifting platform, the top surface of the lifting platform is fixedly connected to an adsorption pad, and the display glass substrate is placed on the top surface of the adsorption pad.

[0010] As a preferred solution of the present invention, a plurality of supporting legs are fixedly connected to the top surface of the workbench, and self-locking casters are respectively fixedly installed on the bottom ends of the plurality of supporting legs.

[0011] As a preferred solution of the present invention, a control panel is fixedly installed on the side of the workbench.

[0012] As a preferred solution of the present invention, a filter screen is fixedly sleeved on the end of the inner cavity of the exhaust tube.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the present invention, when the second electric push rod is inserted between the adsorption pad and the display screen glass substrate, the rubber pad moves to the upper side of the display screen glass substrate, and the third electric push rod is used to drive the pressure plate and the rubber pad to move downward, and the rubber pad is used to squeeze the top surface of the display screen glass substrate. The demolded display screen glass substrate is clamped and fixed by the wedge-shaped scraper and the rubber pad, thereby ensuring the stability of demolding and improving the working quality of the demolding mechanism of the etching machine for liquid crystal display screens.

[0015] (2) In the present invention, during the process of demolding the display glass substrate upward, the external air is introduced into the inner cavity of the heating box by an exhaust fan, and the air entering the inner cavity of the heating box is heated by an electric heating tube. The heated hot air is sprayed from the blowing nozzle to between the adsorption pad and the display glass substrate. The hot air is used to heat the adsorption pad and the display glass substrate, so that the moisture between the adsorption pad and the display glass substrate dries and turns into water vapor, thereby reducing the adsorption force of the adsorption pad on the display glass substrate, so that the display glass substrate can be lifted from the adsorption pad, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the workbench of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the top plate of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the heating box of the present invention.

[0020] Description of the numbers in the figure:

[0021] 1. Workbench; 2. Blowing mechanism; 3. Etching tank; 4. Support and adsorption mechanism; 5. Lifting frame; 6. Second electric push rod; 7. Wedge-shaped scraper; 8. Vertical pole; 9. Top plate; 10. Third electric push rod; 11. Press plate; 12. Rubber pad; 13. Heating box; 14. Exhaust cylinder; 15. Exhaust fan; 16. Electric heating tube; 17. Air duct; 18. Air duct box; 19. Blowing nozzle; 20. Filter; 21. First electric push rod; 22. Fourth electric push rod; 23. Lifting platform; 24. Adsorption pad; 25. Display glass substrate; 26. Support legs; 27. Self-locking casters; 28. Control panel. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Example:

[0026] See also Figure 1-4 , a demolding mechanism of an etching machine for a liquid crystal display, comprising a workbench 1, an etching groove 3 is fixedly sleeved in the middle of the workbench 1, the etching groove 3 is provided with a supporting adsorption mechanism 4, a display glass substrate 25 is provided on the top of the supporting adsorption mechanism 4, two blowing mechanisms 2 are provided on the workbench 1, two groups of first electric push rods 21 are fixedly installed on the bottom surface of the workbench 1, the output ends of the two groups of first electric push rods 21 extend to the top of the workbench 1 respectively and are fixedly connected to a lifting frame 5, two second electric push rods 6 are fixedly installed on the two lifting frames 5, the output ends of the second electric push rods 6 are respectively fixedly connected to a wedge-shaped scraper 7, the top surface of the wedge-shaped scraper 7 is fixedly connected to a vertical pole 8, the top of the vertical pole 8 is fixedly connected to a top plate 9, a third electric push rod 10 is fixedly installed on the top plate 9, the output end of the third electric push rod 10 extends to the bottom of the top plate 9 and is fixedly connected to a pressing plate 11, and a rubber pad 12 is provided on the bottom surface of the pressing plate 11.

[0027] For details, please refer to Figure 1 and Figure 4The hair blowing mechanism 2 includes a heating box 13 fixedly connected to the bottom surface of the workbench 1, an exhaust tube 14 is provided on the outside of the heating box 13, an exhaust fan 15 is fixedly installed in the inner cavity of the exhaust tube 14, an electric heating tube 16 is fixedly installed in the inner cavity of the heating box 13, and a plurality of air guide tubes 17 are fixedly connected to the top of the heating box 13. The top ends of the plurality of air guide tubes 17 are fixedly connected to the top of the workbench 1 and fixedly connected to an air guide box 18, and a blowing nozzle 19 is fixedly connected to the side of the air guide box 18.

[0028] In this embodiment, the electric heating tube 16 is used to heat the air entering the inner cavity of the heating box 13, and the hot air is used to blow air towards the display screen glass substrate 25.

[0029] For details, please refer to Figure 1 and Figure 2 The supporting adsorption mechanism 4 includes a fourth electric push rod 22 fixedly installed at the bottom of the etching groove 3. The output end of the fourth electric push rod 22 extends to the inner cavity of the etching groove 3 and is fixedly connected to a lifting platform 23. The top surface of the lifting platform 23 is fixedly connected to an adsorption pad 24, and the display glass substrate 25 is placed on the top surface of the adsorption pad 24.

[0030] In this embodiment, the fourth electric push rod 22 is used to drive the lifting platform 23, the adsorption pad 24 and the display glass substrate 25 to move up and down, so that the display glass substrate 25 is extended into the etching groove 3 for etching. In addition, when the fourth electric push rod 22 drives the display glass substrate 25 to extend out of the inner cavity of the etching groove 3, the blowing nozzle 19 and the top surface of the lifting platform 23 are flush. In addition, the adsorption pad 24 can be a polyurethane foam pad.

[0031] For details, please refer to Figure 1 The top surface of the workbench 1 is fixedly connected to a plurality of support legs 26 , and the bottom ends of the plurality of support legs 26 are respectively fixedly mounted with self-locking casters 27 .

[0032] In this embodiment, the workbench 1 is supported by support legs 26 and self-locking casters 27 , and the self-locking casters 27 are used to move the device.

[0033] For details, please refer to Figure 2 A control panel 28 is fixedly mounted on the side of the workbench 1 .

[0034] In this embodiment, the control panel 28 is used to control the exhaust fan 15 , the electric heating pipe 16 , the second electric push rod 6 , the third electric push rod 10 , the fourth electric push rod 22 , and the first electric push rod 21 .

[0035] For details, please refer to Figure 1 A filter screen 20 is fixedly sleeved on the end of the inner cavity of the exhaust tube 14.

[0036] In this embodiment, the filter 20 is used to filter the air entering the exhaust tube 14 to prevent dust from entering the inner cavity of the exhaust tube 14 .

[0037] Working principle: When in use, first place the display glass substrate 25 to be etched on the adsorption pad 24, start the fourth electric push rod 22 to drive the lifting platform 23, the adsorption pad 24 and the display glass substrate 25 to the inner cavity of the etching groove 3 for etching, and after etching, use the fourth electric push rod 22 again to drive the display glass substrate 25 to extend out of the top of the etching groove 3, and then start the first electric push rod 21 to adjust the height of the lifting frame 5 and the wedge-shaped scraper 7 so that the height of the end of the wedge-shaped scraper 7 is flush with the top surface of the adsorption pad 24. At this time, start multiple second electric push rods 6 to drive multiple wedge-shaped scrapers 7 to move in the direction close to the adsorption pad 24, so that the end of the wedge-shaped scraper 7 is inserted between the adsorption pad 24 and the display glass substrate 25, and then start the third electric push rod 10 to drive the pressing plate 11 and the rubber pad 12 to move downward, so that the bottom surface of the rubber pad 12 is in contact with the top surface of the display glass substrate 25, thereby clamping the display glass substrate 25 using the wedge-shaped scraper 7 and the rubber pad 12. The first electric push rod 21 is started to drive the lifting frame 5, the wedge-shaped scraper 7 and the display glass substrate 25 to move up slowly, so that the display glass substrate 25 is demoulded from the adsorption pad 24. Finally, in the process of lifting the display glass substrate 25, the electric heating tube 16 is energized to generate heat, and the exhaust fan 15 is started to introduce external air from the exhaust cylinder 14 into the inner cavity of the heating box 13. The electric heating tube 16 heats the air entering the inner cavity of the heating box 13, and the heated hot air is introduced from the air guide pipe 17 to the inner cavity of the air guide box 18, and the hot air in the air guide box 18 is sprayed from the blowing nozzle 19 to the space between the adsorption pad 24 and the display glass substrate 25. The hot air is used to heat the space between the adsorption pad 24 and the display glass substrate 25, so that the moisture between the adsorption pad 24 and the display glass substrate 25 dries and turns into water vapor, thereby reducing the adsorption force of the adsorption pad 24 on the display glass substrate 25, so that the display glass substrate 25 is lifted from the adsorption pad 24.

[0038] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and improved ideas of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A demoulding mechanism for an etching machine for a liquid crystal display screen, comprising a workbench (1), characterized in that: The middle of the workbench (1) is fixedly sleeved with an etching groove (3), the etching groove (3) is provided with a support adsorption mechanism (4), the top of the support adsorption mechanism (4) is provided with a display screen glass substrate (25), the workbench (1) is provided with two blower mechanisms (2), the bottom surface of the workbench (1) is fixedly mounted with two groups of first electric push rods (21), the output ends of the two groups of the first electric push rods (21) respectively extend to the top of the workbench (1) and are fixedly connected to a lifting frame (5), the two lifting frames (5) Two second electric push rods (6) are fixedly mounted on the top, respectively; the output ends of the second electric push rods (6) are fixedly connected to wedge-shaped scrapers (7); the top surfaces of the wedge-shaped scrapers (7) are fixedly connected to vertical poles (8); the top ends of the vertical poles (8) are fixedly connected to top plates (9); a third electric push rod (10) is fixedly mounted on the top plates (9); the output ends of the third electric push rods (10) extend to the bottom of the top plates (9) and are fixedly connected to a pressure plate (11); a rubber pad (12) is provided on the bottom surface of the pressure plate (11).

2. The demoulding mechanism of the liquid crystal display etching machine according to claim 1, characterized in that: The blower mechanism (2) comprises a heating box (13) fixedly connected to the bottom surface of the workbench (1), an exhaust tube (14) is provided on the outside of the heating box (13), an exhaust fan (15) is fixedly installed in the inner cavity of the exhaust tube (14), an electric heating pipe (16) is fixedly installed in the inner cavity of the heating box (13), a plurality of air guide tubes (17) are fixedly sleeved on the top of the heating box (13), the top ends of the plurality of air guide tubes (17) are fixedly sleeved on the top of the workbench (1) and fixedly connected to an air guide box (18), and a blowing nozzle (19) is fixedly connected to the side of the air guide box (18).

3. The demoulding mechanism of the liquid crystal display etching machine according to claim 2, characterized in that: The supporting adsorption mechanism (4) comprises a fourth electric push rod (22) fixedly mounted on the bottom of the etching tank (3); the output end of the fourth electric push rod (22) extends to the inner cavity of the etching tank (3) and is fixedly connected to a lifting platform (23); the top surface of the lifting platform (23) is fixedly connected to an adsorption pad (24); and the display screen glass substrate (25) is placed on the top surface of the adsorption pad (24).

4. The demoulding mechanism of the liquid crystal display etching machine according to claim 1, characterized in that: The top surface of the workbench (1) is fixedly connected to a plurality of support legs (26), and the bottom ends of the plurality of support legs (26) are respectively fixedly mounted with self-locking casters (27).

5. The demoulding mechanism of the liquid crystal display etching machine according to claim 1, characterized in that: A control panel (28) is fixedly mounted on the side of the workbench (1).

6. The demoulding mechanism of the liquid crystal display etching machine according to claim 2, characterized in that: A filter screen (20) is fixedly sleeved on the end of the inner cavity of the exhaust cylinder (14).

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