An automatic glass splitting device and its splitting method

Abstract

This invention discloses an automatic glass splitting device and its splitting method, comprising an adsorption platform, two inlet throttle valves, a three-way connector, an X-axis positioning plate, and a Y-axis positioning plate. The adsorption platform has a U-shaped groove with multiple adsorption holes. The platform's interior has two vacuum channels, connected to an outer closed-loop groove and an inner closed-loop groove, respectively. Two air ports are located on the side of the adsorption platform. The two inlet throttle valves are connected to the two air ports, with the valve communicating with the inner closed-loop groove connected to a first vacuum generating system via an air pipe. The three-way connector is connected to three air pipes, the other ends of which are connected to a vacuum pressure gauge, a second vacuum generating system, and the inlet throttle valve communicating with the outer closed-loop groove, respectively. The X-axis and Y-axis positioning plates are used to position two adjacent sides of the glass plate. The splitting method of this invention uses differential pressure for splitting, resulting in accurate and efficient splitting.

Description

Technical Field

[0001] This invention relates to glass cover plate processing equipment for LCD and OLED screens, specifically to an automatic glass splitting device and a splitting method thereof. Background Technology

[0002] In the flat panel display field, as people's pursuit of aesthetics in mobile phones has increased, mobile phone screen covers have gradually evolved from ordinary screens (2D) to 2.5D screens. The central part of a 2.5D screen glass is flat, just like a 2D screen glass, but unlike a 2D screen, its four edges have a certain curvature, giving the edges a teardrop-like effect, which is very aesthetically pleasing. In the manufacturing process of 2.5D glass covers, some processes require operation on the front side, while others require operation on the back. Therefore, many processes, such as grinding, spraying hardened coatings, and screen printing, require separating the 2.5D glass cover (distinguishing between the front and back).

[0003] There are currently three facet splitting methods:

[0004] 1. Traditional manual face division is inefficient and has a high error rate, especially for some 2.5D glass with small curvature, where the naked eye cannot accurately divide the face.

[0005] 2. CCD visual facet splitting: This method is effective for frosted 2.5D glass, but it cannot split transparent 2.5D glass, and the cost is relatively high.

[0006] 3. Laser measurement for facet division: This method can divide faces, but the facet division efficiency is low and the cost is very high.

[0007] Therefore, it is necessary to develop a face-splitting device and face-splitting method to solve the above-mentioned technical problems. Summary of the Invention

[0008] To address the shortcomings of existing technologies, the present invention aims to provide an automatic glass splitting device and a splitting method thereof. The purpose of designing this splitting device is to solve the problems of low accuracy, low efficiency, and high cost in current splitting methods.

[0009] To solve the above technical problems, the present invention provides the following solution: An automatic glass splitting device of the present invention includes:

[0010] The adsorption platform has a flat loading surface with a U-shaped groove. The bottom surface of the U-shaped groove has multiple adsorption holes that are evenly distributed. The adsorption platform has two vacuum channels inside, which are independently connected to the outer closed-loop groove and the inner closed-loop groove of the U-shaped groove. Two air ports are provided on one side of the adsorption platform, which are connected to the two vacuum channels respectively.

[0011] Two intake throttle valves are connected to two air ports respectively. The intake throttle valve that communicates with the inner closed-loop groove is connected to the first vacuum generation system through an air pipe.

[0012] The three-way interface is connected to three air pipes, and the other end of the three air pipes is connected to a vacuum pressure gauge, a second vacuum generating system, and an intake throttle valve that communicates with the outer closed loop groove, respectively.

[0013] An X-axis positioning plate is fixed to one side of the material loading surface along the X-axis and close to the edge of the outer closed-loop groove.

[0014] The Y-axis positioning plate is fixed to one side of the material loading surface along the Y-axis and close to the edge of the outer closed-loop groove. The side of the Y-axis positioning plate facing the loop-shaped groove and the side of the X-axis positioning plate facing the loop-shaped groove are perpendicular to each other.

[0015] Furthermore, the loop-shaped groove is a square annular groove with rounded corners.

[0016] The method of face division in this invention is as follows: the edges of the four sides of the front of the glass plate have a certain arc transition structure, and the back is a plane. When measuring the pressure value, the pressure value obtained when the front of the glass plate is facing down is different from the pressure value obtained when the back of the glass plate is facing down. Therefore, a preset measurement value is set, and the actual pressure value is compared with the measured value to determine whether the glass plate being measured is facing down or not.

[0017] Furthermore, this faceting method includes the following steps:

[0018] Step 1: Take a piece of glass.

[0019] Step 2: Place the glass plate face down on the loading surface of the adsorption platform, and move the glass plate so that the two sides of the glass plate abut against the sides of the X-axis positioning plate and the Y-axis positioning plate.

[0020] Step 3: Turn on the first vacuum generation system leading to the inner closed-loop groove to flatten the glass plate;

[0021] Step 4: Turn on the second vacuum generation system leading to the outer closed-loop tank and observe the pressure value on the vacuum pressure gauge.

[0022] When the pressure value is less than the preset measurement value, it is determined that the front of the glass plate being measured is facing down;

[0023] When the pressure value is greater than the preset measurement value, it is determined that the back of the glass plate being measured is facing down.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: Compared with the traditional three methods of splitting, an automatic glass splitting device is designed. The adsorption platform of the automatic glass splitting device has a vacuum channel. By testing the pressure value of the glass plate and the magnitude of the preset measurement value, it is determined whether the glass plate is facing down or down.

[0025] The facet division method of the present invention adopts the pressure difference facet division method, which is accurate, efficient and low cost, and is superior to the traditional facet division method in all aspects. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the automatic glass splitting device of the present invention.

[0027] Figure 2 This is a diagram showing the positional relationship between the inner and outer closed-loop grooves of the adsorption platform of the present invention.

[0028] Figure 3 This is a schematic diagram showing the distribution structure of the two air inlets on the side of the adsorption platform of the present invention and other side air inlets that need to be blocked.

[0029] Figure 4 This is a schematic diagram of the slotting positions of the inner and outer closed-loop grooves of the present invention.

[0030] Figure 5 This is a structural diagram of the first vacuum channel that connects to the inner closed-loop groove in this invention.

[0031] Figure 6 This is a structural diagram of the second vacuum channel that is compatible with the external closed-loop groove in this invention.

[0032] Figure 7 This is a schematic diagram of the structure of the glass plate of the present invention placed on the adsorption platform.

[0033] Figure 8 This is an enlarged view of the structure of the glass plate of the present invention with its front side facing down.

[0034] Figure 9 This is an enlarged view of the structure of the glass plate of the present invention with the back side facing down. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention. Obviously, the embodiments described in this invention are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0039] Example 1: The specific structure of the present invention is as follows:

[0040] Please refer to the appendix. Figure 1-6 An automatic glass splitting device is characterized by comprising an adsorption platform 1, two air intake throttle valves, a three-way interface 6, an X-axis positioning plate 2, and a Y-axis positioning plate 4.

[0041] The material-carrying surface of the adsorption platform 1 is a plane, and it has a U-shaped structure groove. The bottom surface of the U-shaped structure groove is provided with multiple adsorption holes, and each adsorption hole is evenly distributed. The adsorption platform 1 has two vacuum channels inside, which are independently connected to the outer closed-loop groove 101 and the inner closed-loop groove 103 of the U-shaped structure groove. Two air ports are provided on one side of the adsorption platform 1, which are respectively connected to the two vacuum channels.

[0042] The two vacuum channels include a first vacuum channel 109 and a second vacuum channel 110.

[0043] Figure 2 In the middle, the inner closed-loop groove 103 is surrounded by the outer closed-loop groove 101. The inner closed-loop groove 103 is a rounded rectangular groove, and two first adsorption holes 104 are respectively provided on its four sides. Each first adsorption hole 104 is connected to the first vacuum channel 109.

[0044] Figure 2 In the middle, the outer closed-loop groove 101 is a rounded rectangular groove, and two second adsorption holes 102 are respectively provided on its four sides. Each second adsorption hole 102 is connected to the second vacuum channel 110.

[0045] like Figure 2-3 As shown, the two intake throttle valves are connected to the two air ports respectively. The intake throttle valve that communicates with the inner closed-loop groove 103 is connected to the first vacuum generation system through an air pipe.

[0046] The two intake throttle valves are the first intake throttle valve 9 and the second intake throttle valve 8.

[0047] The two air ports are a first air port 106 and a second air port 105. The first air port 106 is connected to the first vacuum channel 109. Several first side air ports 108 connected to the first vacuum channel 109 are also provided on the side of the adsorption platform 1. Each first side air port 108 is blocked by a plug. The first air intake throttle valve 9 is installed on the first air port 106, and the second air intake throttle valve 8 is installed on the second air port 105.

[0048] The second air port 105 is connected to the second vacuum channel 110. Several second side air ports 107 connected to the second vacuum channel 110 are also provided on the side of the adsorption platform 1. Each second side air port 107 is blocked by a plug.

[0049] The three-way connector 6 is connected to three air pipes, the other ends of which are connected to a vacuum pressure gauge 5, a second vacuum generating system, and an intake throttle valve communicating with the outer closed-loop groove 101, respectively. The three air pipes are the first air pipe 7, the second air pipe 12, and the third air pipe 11. The vacuum pressure gauge 5 and the three-way connector 6 are connected through the first air pipe 7, the second intake throttle valve 8 and the vacuum pressure gauge 5 are connected through the second air pipe 12, and the three-way connector 6 is connected through the third air pipe 11 and the second vacuum generating system.

[0050] The first intake throttle valve 9 is connected to the first vacuum generation system via the fourth air pipe.

[0051] An X-axis positioning plate 2 is fixed to one X-axis edge of the material-carrying surface and close to the edge of the outer closed-loop groove 101. The X-axis positioning plate 2 is fixed to the material-carrying surface by screws 3. The X-axis positioning plate 2 and the edge of the outer closed-loop groove 101 form a step.

[0052] The Y-axis positioning plate 4 is fixed to one side of the material-carrying surface along the Y-axis and close to the edge of the outer closed-loop groove 101. The side of the Y-axis positioning plate 4 facing the loop-shaped groove and the side of the X-axis positioning plate 2 facing the loop-shaped groove are perpendicular to each other. The Y-axis positioning plate 4 is fixed to the material-carrying surface by screws 3. The Y-axis positioning plate 4 and the edge of the outer closed-loop groove 101 form a step.

[0053] A preferred embodiment of this technical solution is that the loop-shaped groove is a square annular groove with rounded corners.

[0054] Example 2:

[0055] The following is the glass splitting method of the automatic glass splitting device of the present invention:

[0056] like Figure 1-9 As shown, in the automatic glass splitting device of the present invention, the edges of the four sides of the front of the glass plate 10 have a certain arc transition structure, and its back is a plane. When measuring the pressure value, the pressure value obtained when the front of the glass plate 10 is facing down is different from the pressure value obtained when the back of the glass plate 10 is facing down. Therefore, a preset measurement value is used, and the actual pressure value is compared with the measured value to determine whether the glass plate 10 is facing down or not.

[0057] like Figure 8 As shown, the front of the glass plate 10 is facing down, and one side of it abuts against the X-axis positioning plate 2. In the figure, it can be seen that there is a gap at the step of the edge of the glass plate 10 and the outer closed ring groove 101. When the pressure value is tested by vacuum, a pressure drop will occur. The actual pressure value is smaller than the preset measured value, so it can be determined that the front of the glass plate 10 is facing down.

[0058] like Figure 9 As shown, the back of the glass plate 10 is facing down, and one side of it abuts against the X-axis positioning plate 2. In the figure, it can be seen that the glass plate 10 and the step at the edge of the outer closed ring groove 101 are flat. When the pressure value is tested under vacuum, the actual pressure value is greater than the preset measured value, which indicates that the back of the glass plate 10 is facing down.

[0059] Example 3:

[0060] The faceting method of the present invention includes the following steps:

[0061] Step 1: Take one glass plate (10 pieces).

[0062] Step 2: Place the glass plate 10 face down on the loading surface of the adsorption platform 1, and move the glass plate 10 so that the two sides of the glass plate 10 abut against the sides of the X-axis positioning plate 2 and the Y-axis positioning plate 4.

[0063] Step 3: Turn on the first vacuum generation system leading to the inner closed-loop groove 103 to make the glass plate 10 flat.

[0064] Step 4: Turn on the second vacuum generation system leading to the outer closed-loop tank 101 and observe the pressure value of the vacuum pressure gauge 5.

[0065] When the pressure value is less than the preset measurement value, it is determined that the front of the glass plate 10 being measured is facing down;

[0066] When the pressure value is greater than the preset measurement value, it is determined that the back of the glass plate 10 being measured is facing down.

[0067] Example 4:

[0068] The following explanation uses CG 2.5D glass as an example:

[0069] Because the edges of the four sides of the front of the CG 2.5D glass have a rounded transition, while the edges of the four sides of the back have only a small chamfer, after precise positioning of the CG 2.5D glass cover plate in the X and Y directions, when the CG 2.5D glass is placed back-side down on the adsorption platform 1, the U-shaped groove is completely covered, and the vacuum pressure gauge 5 displays a large pressure value. However, when the CG 2.5D glass is placed front-side down on the adsorption platform 1, the edges of the four sides of the front of the glass have a rounded transition, and there is a certain gap between the adsorption platform plate and the transition rounded edges, resulting in a smaller pressure value displayed on the vacuum pressure gauge. When the pressure value on the vacuum gauge is larger, it is determined that the CG 2.5D glass is back-side down; when the pressure value on the vacuum gauge is smaller, it is determined that the CG 2.5D glass is front-side down. This allows for the differentiation between the front and back of the CG 2.5D glass.

[0070] Example 5:

[0071] The automatic glass faceting structure of this invention was used in a practical test, with CG 2.5D glass as an example:

[0072] Take 10 pieces of each of the three types of CG 2.5D glass: frosted glass, semi-frosted glass, and transparent glass, respectively.

[0073] For each type of glass, five tests were performed on each side. The specific experimental steps are as follows:

[0074] 1. Take a 2.5D glass vacuum platform plate;

[0075] 2. Gently push the glass to make it fit against the X-axis positioning plate and the Y-axis positioning plate;

[0076] 3. Activate the vacuum in the slot inside the vacuum platform plate to level the 2.5D glass;

[0077] 4. Activate the vacuum in the external slot of the vacuum platform plate to level the 2.5D glass;

[0078] 5. Observe and record the pressure value of the vacuum pressure gauge;

[0079] 6. Turn off both vacuum circuits and flip the 2.5D glass to the other side;

[0080] 7. Repeat steps 1 to 5 above for a total of 5 times, and record the test data for 5 sets of 2.5D glass, for a total of 10 times;

[0081] 8. Take other 2.5D glass and perform the above tests.

[0082] The test data is as follows:

[0083]

[0084]

[0085]

[0086]

[0087] The test data above shows that the minimum negative pressure value when the back of the sample is facing down is 76 kPa, and the maximum negative pressure value when the front of the sample is facing down is 65 kPa. Therefore, we can set the product to face down when the negative pressure value is greater than 70 kPa, and to face down when the negative pressure value is less than 70 kPa. This is how we split the 2.5D glass into facets.

[0088] In summary, compared to the three traditional glass separation methods, an automatic glass separation device was designed. The adsorption platform of this device has a vacuum channel. By testing the pressure value of the glass plate and comparing it to a preset measurement value, it determines whether the glass plate is facing down (front or back). This invention's separation method uses pressure difference separation, resulting in accurate separation, high efficiency, and low cost, making it superior to traditional separation methods in all aspects.

[0089] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An automatic glass splitting device, characterized in that, include: The adsorption platform (1) has a flat loading surface and a loop-shaped groove. The bottom surface of the loop-shaped groove is provided with multiple adsorption holes, and each adsorption hole is evenly distributed. The adsorption platform (1) has two vacuum channels inside. The two vacuum channels are independently connected to the outer closed loop groove (101) and the inner closed loop groove (103) of the loop-shaped groove. Two air ports are provided on one side of the adsorption platform (1) and are respectively connected to the two vacuum channels. Two intake throttle valves are connected to two air ports respectively. The intake throttle valve that communicates with the inner closed-loop groove (103) is connected to the first vacuum generation system through an air pipe. The three-way interface (6) is connected to three air pipes respectively. The other end of the three air pipes is connected to the vacuum pressure gauge (5), the second vacuum generating system, and the air intake throttle valve connected to the outer closed loop groove (101). The X-axis positioning plate (2) is fixed to one side of the material loading surface along the X-axis and close to the edge of the outer closed-loop groove (101). The Y-axis positioning plate (4) is fixed to one side of the material loading surface along the Y-axis and close to the edge of the outer closed-loop groove (101). The side of the Y-axis positioning plate (4) facing the groove and the side of the X-axis positioning plate (2) facing the groove are perpendicular to each other.

2. The automatic glass splitting device according to claim 1, characterized in that, The groove in the spiral structure is a square annular groove with rounded corners.

3. A faceting method, wherein the faceting method is applied to the automatic glass faceting device according to any one of claims 1-2, characterized in that, The faceting method includes the following steps: Step 1: Take a glass plate (10). The edges of the four sides of the front of the glass plate (10) have a certain rounded transition structure, and the back is flat. When measuring the pressure value, the pressure value obtained when the front of the glass plate (10) is facing down is different from the pressure value obtained when the back of the glass plate (10) is facing down. Therefore, a preset measurement value is set, and the actual pressure value is compared with the measured value to determine whether the glass plate (10) is facing down or facing down. Step 2: Place the glass plate (10) face down on the loading surface of the adsorption platform (1), and move the glass plate (10) so that the two sides of the glass plate (10) abut against the sides of the X-axis positioning plate (2) and the Y-axis positioning plate (4). Step 3: Turn on the first vacuum generation system leading to the inner closed-loop groove (103) to make the glass plate (10) flatten. Step 4: Turn on the second vacuum generation system leading to the outer closed loop tank (101) and observe the pressure value of the vacuum pressure gauge (5); When the pressure value is less than the preset measurement value, it is determined that the front of the glass plate (10) being measured is facing down; When the pressure value is greater than the preset measurement value, it is determined that the back of the glass plate (10) being measured is facing down.

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