A substrate edge grinding control mechanism and method for producing liquid crystal display modules

Abstract

The present invention relates to the technical field of substrate edge grinding mechanisms, and more specifically discloses a substrate edge grinding control mechanism and method for liquid crystal display module production, including a positioning seat assembly, a mechanical arm is fixedly connected to the top of the positioning seat assembly near the back, a positioning and conveying assembly is installed at the bottom of the mechanical arm, a suction assembly is installed on the inner side of the positioning and conveying assembly, and the positioning seat assembly includes a positioning base; when the suction assembly and the suction port assembly cooperate to make the inside of the adsorption tank a negative pressure state, the height of the lifting block is monitored through the lifting slot. Since the inside of the adsorption tank is in a negative pressure state, if cracks appear on the substrate contacted by the adsorption tank, gas will enter the adsorption tank, so that the air pressure inside the adsorption tank returns to normal. At this time, the height of the lifting block will drop. If the suction assembly is not performing gas injection, it means that cracks appear on the substrate at this time, which is convenient for quickly detecting whether cracks appear on the substrate.

Description

Technical Field

[0001] The present invention relates to the technical field of substrate edge grinding mechanisms, and more specifically to a substrate edge grinding control mechanism and method for producing liquid crystal display modules. Background Art

[0002] The substrate edge grinding mechanism for LCD module production is an important equipment in the manufacturing process. It is used to grind the cut LCD module substrate to ensure that its edge is smooth and free of micro-cracks, and meets the precision requirements of subsequent processing and assembly. The substrate edge grinding mechanism for LCD module production usually consists of multiple key components, including but not limited to:

[0003] Table device: used to support and fix the substrate, usually with a stable structure and appropriate size to accommodate substrates of different specifications.

[0004] Grinding device: Symmetrically mounted on the table device, used to grind the edge of the substrate. The grinding device usually includes components such as a grinding head, a motor and a grinding wheel, among which the quality and selection of the grinding wheel are crucial to the grinding effect.

[0005] Clamping device: Installed between the grinding devices, used to tighten and apply force to each other during the grinding process to ensure that the substrate is evenly stressed and avoid rigid extrusion causing the substrate to break.

[0006] The substrate edge grinding mechanism of the existing liquid crystal display module production has some shortcomings during use, as follows:

[0007] During the operation of the substrate edge grinding mechanism of the existing liquid crystal display module production, cracks may appear on the liquid crystal display module substrate. At this time, the cracks in the substrate cannot be detected in time. The cracked substrate can only be removed through the detection mechanism after the edge grinding work is completed on the substrate. Therefore, it is not easy to ensure the processing efficiency of the substrate edge grinding. Summary of the invention

[0008] In order to overcome the above-mentioned defects of the prior art, the present invention provides a substrate edge grinding control mechanism and method for producing a liquid crystal display module to solve the problems existing in the above-mentioned background technology.

[0009] The present invention provides the following technical solution: a substrate edge grinding control mechanism for the production of liquid crystal display modules, comprising a positioning seat assembly, a mechanical arm is fixedly connected to the top of the positioning seat assembly near the back, a positioning and conveying assembly is installed at the bottom of the mechanical arm, a suction assembly is installed on the inner side of the positioning and conveying assembly, the positioning seat assembly comprises a positioning base, a first positioning seat is fixedly connected to one side of the top of the positioning base, an electric slide rail is installed on the top of the first positioning seat, an edge grinding assembly is movably connected to the top of the electric slide rail, a second positioning seat is fixedly connected to the other side of the top of the positioning base, a first rotating shaft is installed on the inner side of the second positioning seat, a conveying circular plate is fixedly connected to the outer side of the first rotating shaft, and positioning bars are fixedly connected to both sides of the top of the second positioning seat.

[0010] Furthermore, the positioning and conveying assembly includes a positioning frame body, transmission shafts are installed on both sides of the inner side of the positioning frame body, transmission rollers are installed on the back side of the transmission shaft, transmission belts are installed on the outer side of the transmission rollers, adsorption grooves are provided on the outer side of the transmission belts, a pushing plate is installed on the inner side of the transmission belts, and a suction assembly is installed on the inner side of the transmission belts, sliding positioning plates are installed on the front and back sides of the positioning frame body, a first motor is installed on the other side of the sliding positioning plate close to one side of the positioning frame body, the output shaft of the first motor is fixedly connected to a rotating disk, a first rotating pushing column is fixedly connected to the outer side of the front side of the rotating disk, a rotating positioning ring is installed on the outer side of the first rotating pushing column, and a transmission rod is fixedly connected to the outer side of the rotating positioning ring.

[0011] Furthermore, the air suction component includes a height detection sensor, a lifting groove is opened on the inner side of the height detection sensor, a lifting block is arranged on the inner side of the lifting groove, and a sealing slope is installed at the top opening of the lifting groove.

[0012] Furthermore, the suction assembly includes a gas compressor, a connecting pipe is installed on the outside of the gas compressor, an air box is installed on the bottom of the connecting pipe, sliding blocks are fixedly connected to the front and back sides of the air box, a second rotating pushing column is installed on the side of the sliding block away from one side of the air box, an air intake port assembly is fixedly connected to the bottom of the air box, and a pushing assembly is fixedly connected to the bottom of the air box.

[0013] Furthermore, the air intake assembly includes a second air intake pipe, a lifting ring groove is opened on the inner side of the second air intake pipe near the bottom, a push spring is fixedly connected to the top of the lifting ring groove, a limiting ring is fixedly connected to the bottom of the push spring, and a sealing tube is fixedly connected to the inner side of the limiting ring.

[0014] Furthermore, the pushing assembly includes a U-shaped positioning frame, a rotating positioning shaft is installed on the inner side of the U-shaped positioning frame, a rotating block is installed on the outer side of the rotating positioning shaft, the front and back sides of the rotating block are fixedly connected with torque springs, and a rotating pushing plate is installed on one side of the rotating block.

[0015] Furthermore, positioning grooves are provided on the front and back sides of the inner side of the transmission belt, the width of the transmission belt positioning grooves is the same as the thickness of the transmission circular plates on the front and back sides of the transmission roller, the bottom of the adsorption groove is connected to the suction component, and the internal space of the adsorption groove is connected to the opening at the bottom of the suction component.

[0016] Furthermore, the two push plates and the push components in the longitudinal direction form a group, the spacing between two adjacent suction components is the same as the spacing between each group of push plates, the spacing between two adjacent suction port components is the same as the spacing between each group of push components, and the longitudinal spacing of the suction port components is the same as the longitudinal spacing of the suction components.

[0017] Furthermore, the clearance between the outer diameter of the sealing tube and the opening diameter of the top of the lifting groove is matched, and the bottom of the sealing tube is provided with a slope, the slope of the bottom of the sealing tube and the sealing slope cooperate with each other, and a layer of sealing rubber is provided on the sealing slope and the slope of the bottom of the sealing tube.

[0018] Technical effects and advantages of the present invention:

[0019] 1. In the present invention, when the liquid crystal display module substrate is transported to the position where the edge grinding mechanism is located, the first motor drives the rotating disc to rotate, and then drives the first rotating push column to rotate, and the second rotating push column is driven by the transmission rod and the rotating positioning ring to make a reciprocating motion, and then drives the gas compressor, the connecting pipe, the air box, the air suction port assembly and the pushing assembly to make a reciprocating motion, and then when the suction assembly is located on the right side, the gas compressor works to extract the air inside the lifting tank through the gas compressor, and then the lifting block rises, resulting in a negative pressure state inside the adsorption tank. At this time, the adsorption tank cooperates with the transmission belt to adsorb the liquid crystal display module substrate, which is beneficial to positioning the substrate and facilitating the substrate edge grinding work.

[0020] 2. The present invention pushes the suction assembly to move to the left during the rotation of the rotating disc, and pushes the push plate to move to the left during the movement of the push assembly, and then drives the transmission belt to move outside the transmission roller, thereby driving the liquid crystal display substrate to move toward the edge grinding assembly. When the first rotating push column rotates to any angle from 0 to 180 degrees, the first motor can be stopped, and then the substrate is positioned by the positioning conveying assembly, the suction assembly and the positioning seat assembly to complete the edge grinding. When the first rotating push column rotates to 180 degrees, the working gas compressor works to inject gas into the lifting slot through the suction port assembly, so that the lifting block returns to its original position. , and the air pressure inside the adsorption tank returns to normal, and then the first rotating push column continues to rotate to drive the suction component to move to the right. When the pushing component contacts the pushing plate, the friction between the transmission belt and the substrate prevents the transmission belt from moving, and the rotating pushing plate will cause the rotating pushing plate and the rotating block to rotate along the rotating positioning axis during the continuous movement. After the pushing component passes the pushing plate, the rotating pushing plate rotates to the original position under the action of the torque spring, and the next substrate pushing work can be carried out. The moving distance of the substrate can be effectively controlled, which is conducive to formulating processing procedures and feed rates according to actual production needs.

[0021] 3. During the contact between the air inlet assembly and the air inlet assembly, the sealing tube and the limiting ring will rise under the push from the bottom of the sealing tube, so that the push spring will be compressed. Then, when the center lines of the air inlet assembly and the air inlet assembly coincide, the push spring will push the limiting ring and the sealing tube down, so that the bottom inclined surface of the sealing tube fits with the sealing inclined surface to complete the sealing of the contact position between the air inlet assembly and the air inlet assembly, thus avoiding gas leakage at the contact position between the air inlet assembly and the air inlet assembly, which may affect the normal use of the equipment.

[0022] 4. In the present invention, when the suction assembly and the suction port assembly cooperate to make the interior of the adsorption tank in a negative pressure state, the height of the lifting block is monitored by the height detection sensor. Since the interior of the adsorption tank is in a negative pressure state, if cracks appear on the substrate contacted by the adsorption tank, gas will enter the adsorption tank, so that the air pressure inside the adsorption tank returns to normal. At this time, the height of the lifting block will drop. If the suction assembly is not performing gas injection work, it means that cracks appear on the substrate at this time, which is convenient for quickly detecting whether cracks appear on the substrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic structural diagram of the positioning seat assembly of the present invention.

[0025] Figure 3 It is a partial structural schematic diagram of the present invention.

[0026] Figure 4 It is a schematic diagram of the structure of the positioning and conveying assembly of the present invention.

[0027] Figure 5 It is a partial structural schematic diagram of the positioning and conveying component of the present invention.

[0028] Figure 6 For the present invention Figure 4 A is an enlarged structural diagram of FIG.

[0029] Figure 7 It is a schematic diagram of the structure of the air intake assembly of the present invention.

[0030] Figure 8 It is a schematic diagram of the structure of the suction component of the present invention.

[0031] Fig. 9 It is a schematic diagram of the structure of the air inlet assembly of the present invention.

[0032] Fig.10 It is a schematic diagram of the structure of the pushing component of the present invention.

[0033] The accompanying drawings are marked as follows: 1. Positioning seat assembly; 101. Positioning base; 102. First positioning seat; 103. Electric slide rail; 104. Edge grinding assembly; 105. Second positioning seat; 106. First rotating shaft; 107. Conveying circular plate; 108. Positioning bar; 2. Mechanical arm; 3. Positioning and conveying assembly; 301. Positioning frame body; 302. Transmission shaft; 303. Transmission roller; 304. Adsorption groove; 305. Push plate; 306. Suction assembly; 3061. Height detection sensor; 3062. Lifting groove; 3063. Lifting block; 3064. Sealing slope; 307. Sliding positioning plate; 308. First motor; 309. Rotating disc; 3010, first rotating push column; 3011, transmission rod; 3012, rotating positioning ring; 3013, transmission belt; 4, suction assembly; 401, gas compressor; 402, connecting pipe; 403, air box; 404, air intake assembly; 4041, second air intake pipe; 4042, lifting ring groove; 4043, pushing spring; 4044, limiting ring; 4045, sealing tube; 405, pushing assembly; 4051, U-shaped positioning frame; 4052, rotating positioning shaft; 4053, rotating block; 4054, torque spring; 4055, rotating push plate; 406, sliding block; 407, second rotating push column. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The substrate edge grinding mechanism and control method thereof for the production of liquid crystal display modules involved in the present invention are not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0035] Reference Figures 1 to 10 The present invention provides a substrate edge grinding control mechanism for the production of liquid crystal display modules, including a positioning seat assembly 1, a mechanical arm 2 is fixedly connected to the top of the positioning seat assembly 1 near the back, a positioning and conveying assembly 3 is installed at the bottom of the mechanical arm 2, and a suction assembly 4 is installed on the inner side of the positioning and conveying assembly 3. The positioning seat assembly 1 includes a positioning base 101, a first positioning seat 102 is fixedly connected to one side of the top of the positioning base 101, an electric slide rail 103 is installed on the top of the first positioning seat 102, and an edge grinding assembly 104 is movably connected to the top of the electric slide rail 103, a second positioning seat 105 is fixedly connected to the other side of the top of the positioning base 101, a first rotating shaft 106 is installed on the inner side of the second positioning seat 105, a conveying circular plate 107 is fixedly connected to the outer side of the first rotating shaft 106, and positioning bars 108 are fixedly connected to both sides of the top of the second positioning seat 105.

[0036] In a preferred embodiment, the positioning and conveying component 3 includes a positioning frame body 301, and a transmission shaft 302 is installed on both sides of the inner side of the positioning frame body 301, a transmission roller 303 is installed on the back side of the transmission shaft 302, a transmission belt 3013 is installed on the outer side of the transmission roller 303, an adsorption groove 304 is opened on the outer side of the transmission belt 3013, a pushing plate 305 is installed on the inner side of the transmission belt 3013, and an air suction component 306 is installed on the inner side of the transmission belt 3013, and sliding positioning plates 307 are installed on the front and back sides of the positioning frame body 301, and a first motor 308 is installed on the other side of the sliding positioning plate 307 close to one side of the positioning frame body 301, and the output shaft of the first motor 308 is fixedly connected to a rotating disk 309, and the outer side of the front side of the rotating disk 309 is fixedly connected to a first rotating pushing column 3010, a rotating positioning ring 3012 is installed on the outer side of the first rotating pushing column 3010, and the outer side of the rotating positioning ring 3012 is fixedly connected to a transmission rod 3011.

[0037] In a preferred embodiment, the suction component 306 includes a height detection sensor 3061, a lifting groove 3062 is provided on the inner side of the height detection sensor 3061, a lifting block 3063 is provided on the inner side of the lifting groove 3062, and a sealing slope 3064 is installed at the top opening of the lifting groove 3062; during the rotation of the rotating disc 309, the suction component 4 is pushed to move to the left, and during the movement of the pushing component 405, the pushing plate 305 is pushed to move to the left, and then the transmission belt 3013 is driven to move on the outside of the transmission roller 303, thereby driving the liquid crystal display substrate to move toward the edge grinding component 104, and the first rotating pushing column 3010 rotates at any angle from zero to one hundred and eighty degrees, and the first motor 308 can be stopped, and then the substrate is positioned by positioning the conveying component 3, the suction component 4 and the positioning seat component 1 to complete the edge grinding work, and the gas compressor 401 rotates at the first rotating pushing column 3010 When it reaches one hundred and eighty degrees, gas is injected into the lifting slot 3062 through the air suction port assembly 404, so that the lifting block 3063 returns to its original position, and the air pressure inside the adsorption slot 304 returns to normal. Then, the first rotating push column 3010 continues to rotate to drive the suction assembly 4 to move to the right. When the pushing assembly 405 contacts the pushing plate 305, the friction between the transmission belt 3013 and the substrate prevents the transmission belt 3013 from moving. In the process of continuous movement of the rotating pushing plate 4055, the rotating pushing plate 4055 and the rotating block 4053 rotate along the rotating positioning axis 4052. After the pushing assembly 405 passes the pushing plate 305, the rotating pushing plate 4055 rotates to its original position under the action of the torque spring 4054, and the next substrate pushing work can be carried out. This can effectively control the moving distance of the substrate, which is beneficial for formulating processing procedures and feed rates according to actual production needs.

[0038] In a preferred embodiment, the suction component 4 includes a gas compressor 401, a connecting pipe 402 is installed on the outside of the gas compressor 401, an air box 403 is installed at the bottom of the connecting pipe 402, the front and back sides of the air box 403 are fixedly connected with sliding blocks 406, a second rotating push column 407 is installed on the side of the sliding block 406 away from the side of the air box 403, an air inlet component 404 is fixedly connected to the bottom of the air box 403, and a push component 405 is fixedly connected to the bottom of the air box 403; during the contact between the air inlet component 404 and the air inlet component 306, in the sealing tube 40 The push from the bottom of 45 will cause the sealing tube 4045 and the limiting ring 4044 to rise, compressing the pushing spring 4043. Then, when the center lines of the air intake assembly 404 and the air intake assembly 306 coincide, the pushing spring 4043 will push the limiting ring 4044 and the sealing tube 4045 to fall, so that the bottom inclined surface of the sealing tube 4045 fits with the sealing inclined surface 3064 to complete the sealing of the contact position between the air intake assembly 306 and the air intake assembly 404, thereby avoiding gas leakage at the contact position between the air intake assembly 306 and the air intake assembly 404, which may affect the normal use of the equipment.

[0039] In a preferred embodiment, the air intake port assembly 404 includes a second air intake pipe 4041, and a lifting ring groove 4042 is opened near the bottom of the inner side of the second air intake pipe 4041, and the top of the lifting ring groove 4042 is fixedly connected to a push spring 4043, and the bottom of the push spring 4043 is fixedly connected to a limit ring 4044, and the inner side of the limit ring 4044 is fixedly connected to a sealing tube 4045; when the air intake assembly 306 cooperates with the air intake port assembly 404 to make the interior of the adsorption groove 304 a negative pressure state, the height of the lifting block 3063 is monitored through the lifting groove 3062. Since the interior of the adsorption groove 304 is in a negative pressure state, if cracks appear on the substrate contacted by the adsorption groove 304, gas will enter the adsorption groove 304, so that the air pressure inside the adsorption groove 304 returns to normal. At this time, the height of the lifting block 3063 will drop. If the air injection work is not performed in the suction assembly 4, it means that cracks appear on the substrate at this time, which is convenient for quickly detecting whether cracks appear on the substrate.

[0040] In a preferred embodiment, the pushing component 405 includes a U-shaped positioning frame 4051, a rotating positioning shaft 4052 is installed on the inner side of the U-shaped positioning frame 4051, a rotating block 4053 is installed on the outer side of the rotating positioning shaft 4052, the front and back sides of the rotating block 4053 are fixedly connected with a torque spring 4054, and a rotating pushing plate 4055 is installed on one side of the rotating block 4053; when the liquid crystal display module substrate is transported to the position where the edge grinding mechanism is located, the first motor 308 drives the rotating disc 309 to rotate, and then drives the first rotating pushing column 3010 to rotate, and the transmission rod 3011 and the rotating positioning mechanism are connected to each other. The transmission of the ring 3012 pushes the second rotating push column 407 to do reciprocating motion, which in turn drives the gas compressor 401, the connecting pipe 402, the air box 403, the air intake assembly 404 and the push assembly 405 to do reciprocating motion. Then, when the suction assembly 4 is located on the right side, the gas compressor 401 works to extract the air inside the lifting slot 3062 through the gas compressor 401, and then the lifting block 3063 rises, resulting in a negative pressure state inside the adsorption slot 304. At this time, the adsorption slot 304 cooperates with the transmission belt 3013 to adsorb the liquid crystal display module substrate, which is beneficial to positioning the substrate and facilitating the substrate edge grinding work.

[0041] In a preferred embodiment, positioning grooves are provided on the front and back sides of the inner side of the transmission belt 3013, the width of the positioning grooves of the transmission belt 3013 is the same as the thickness of the transmission circular plates on the front and back sides of the transmission roller 303, the bottom of the adsorption groove 304 is connected to the suction component 306, and the internal space of the adsorption groove 304 is connected to the opening at the bottom of the suction component 306.

[0042] In a preferred embodiment, two push plates 305 and push components 405 are grouped longitudinally, the spacing between two adjacent suction components 306 is the same as the spacing between each group of push plates 305, the spacing between two adjacent suction port components 404 is the same as the spacing between each group of push components 405, and the longitudinal spacing of the suction port components 404 is the same as the longitudinal spacing of the suction components 306.

[0043] In a preferred embodiment, the clearance between the outer diameter of the sealing tube 4045 and the top opening diameter of the lifting groove 3062 is matched, and a slope is provided at the bottom of the sealing tube 4045. The slope at the bottom of the sealing tube 4045 cooperates with the sealing slope 3064, and a layer of sealing rubber is provided on the sealing slope 3064 and the slope at the bottom of the sealing tube 4045.

[0044] A control method for a substrate edge grinding control mechanism for producing a liquid crystal display module comprises the following steps:

[0045] S1. When the liquid crystal display module substrate is transported to the position of the edge grinding mechanism, the first motor 308 drives the rotating disc 309 to rotate, and then drives the first rotating push column 3010 to rotate, and the second rotating push column 407 is driven by the transmission rod 3011 and the rotating positioning ring 3012 to make reciprocating motion, and then drives the gas compressor 401, the connecting pipe 402, the air box 403, the air inlet assembly 404 and the pushing assembly 405 to make reciprocating motion, and then when the suction assembly 4 is located on the right side, the gas compressor 401 works to extract the air inside the lifting slot 3062 through the gas compressor 401, and then the lifting block 3063 rises, resulting in a negative pressure state inside the adsorption slot 304. At this time, the adsorption slot 304 cooperates with the transmission belt 3013 to adsorb the liquid crystal display module substrate;

[0046] S2. During the rotation of the rotating disc 309, the suction component 4 is pushed to move to the left. During the movement of the pushing component 405, the pushing plate 305 is pushed to move to the left, and then the transmission belt 3013 is driven to move outside the transmission roller 303, thereby driving the liquid crystal display substrate to move toward the edge grinding component 104. When the first rotating pushing column 3010 rotates to any angle from zero to one hundred and eighty degrees, the first motor 308 can be stopped, and then the substrate is positioned by the positioning conveying component 3, the suction component 4 and the positioning seat component 1 to complete the edge grinding work. When the first rotating pushing column 3010 rotates to one hundred and eighty degrees, the gas compressor 401 injects gas into the lifting slot 3062 through the suction port component 404, so that the lifting block 3063 returns to the original position, and the air pressure inside the adsorption tank 304 returns to the normal value, and then the first rotating push column 3010 continues to rotate to drive the suction component 4 to move to the right. When the pushing component 405 contacts the pushing plate 305, the friction between the transmission belt 3013 and the substrate prevents the transmission belt 3013 from moving, and the rotating pushing plate 4055 continues to move, causing the rotating pushing plate 4055 and the rotating block 4053 to rotate along the rotating positioning axis 4052. After the pushing component 405 passes the pushing plate 305, the rotating pushing plate 4055 rotates to the original position under the action of the torque spring 4054, and the next substrate pushing work can be carried out, which can effectively control the moving distance of the substrate.

[0047] S3. During the contact between the air inlet component 404 and the air inlet component 306, the sealing tube 4045 and the limiting ring 4044 are pushed up by the bottom of the sealing tube 4045, so that the pushing spring 4043 is compressed. Then, when the center line of the air inlet component 404 and the air inlet component 306 coincide, the pushing spring 4043 pushes the limiting ring 4044 and the sealing tube 4045 to fall down, so that the bottom inclined surface of the sealing tube 4045 fits with the sealing inclined surface 3064 to complete the sealing of the contact position between the air inlet component 306 and the air inlet component 404, avoiding gas leakage at the contact position between the air inlet component 306 and the air inlet component 404, and ensuring that the contact position between the air inlet component 306 and the air inlet component 404 will not leak gas during the process of the equipment grabbing the substrate and conveying the substrate, which will affect the normal use of the equipment.

[0048] S4. Determine whether cracks appear on the substrate. When the suction component 306 cooperates with the suction port component 404 to make the interior of the adsorption tank 304 a negative pressure state, the height of the lifting block 3063 is monitored by the height detection sensor 3061. Since the interior of the adsorption tank 304 is in a negative pressure state, if cracks appear on the substrate contacted by the adsorption tank 304, gas will enter the adsorption tank 304, so that the air pressure inside the adsorption tank 304 returns to normal. At this time, the height of the lifting block 3063 will drop. If the suction component 4 is not performing gas injection, it means that cracks appear on the substrate at this time. The height detection sensor 3061 is used to detect the height of all lifting blocks 3063. It is marked whether the height of the lifting block 3063 is a state where no cracks appear on the substrate, and all detection results are transmitted to the display terminal, so as to quickly detect whether cracks appear on the substrate.

[0049] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0050] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0051] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A substrate edge grinding control mechanism for producing a liquid crystal display module, comprising a positioning seat assembly (1), characterized in that: A mechanical arm (2) is fixedly connected to the top of the positioning seat assembly (1) near the back, a positioning and conveying assembly (3) is installed at the bottom of the mechanical arm (2), a suction assembly (4) is installed on the inner side of the positioning and conveying assembly (3), the positioning seat assembly (1) comprises a positioning base (101), a first positioning seat (102) is fixedly connected to one side of the top of the positioning base (101), an electric slide rail (103) is installed on the top of the first positioning seat (102), an edge grinding assembly (104) is movably connected to the top of the electric slide rail (103), a second positioning seat (105) is fixedly connected to the other side of the top of the positioning base (101), a first rotating shaft (106) is installed on the inner side of the second positioning seat (105), a conveying circular plate (107) is fixedly connected to the outer side of the first rotating shaft (106), and positioning bars (108) are fixedly connected to both sides of the top of the second positioning seat (105); The positioning and conveying assembly (3) comprises a positioning frame body (301), transmission shafts (302) are installed on both sides of the inner side of the positioning frame body (301), a transmission roller (303) is installed on the back side of the transmission shaft (302), a transmission belt (3013) is installed on the outer side of the transmission roller (303), an adsorption groove (304) is provided on the outer side of the transmission belt (3013), a push plate (305) is installed on the inner side of the transmission belt (3013), and an air suction assembly (306) is installed on the inner side of the transmission belt (3013). 01) are both installed with a sliding positioning plate (307) on the front and back sides, a first motor (308) is installed on the other side of the sliding positioning plate (307) close to one side of the positioning frame body (301), an output shaft of the first motor (308) is fixedly connected to a rotating disk (309), a first rotating push column (3010) is fixedly connected to the outer side of the front side of the rotating disk (309), a rotating positioning ring (3012) is installed on the outer side of the first rotating push column (3010), and a transmission rod (3011) is fixedly connected to the outer side of the rotating positioning ring (3012); The air suction component (306) comprises a height detection sensor (3061), a lifting groove (3062) is provided on the inner side of the height detection sensor (3061), a lifting block (3063) is provided on the inner side of the lifting groove (3062), and a sealing inclined surface (3064) is installed at the top opening of the lifting groove (3062).

2. The substrate edge grinding control mechanism for liquid crystal display module production according to claim 1, characterized in that: The suction component (4) comprises a gas compressor (401), a connecting pipe (402) is installed on the outer side of the gas compressor (401), an air box (403) is installed at the bottom of the connecting pipe (402), sliding blocks (406) are fixedly connected to the front and back sides of the air box (403), a second rotating push column (407) is installed on the side of the sliding block (406) away from the side of the air box (403), an air inlet component (404) is fixedly connected to the bottom of the air box (403), and a push component (405) is fixedly connected to the bottom of the air box (403).

3. The substrate edge grinding control mechanism for liquid crystal display module production according to claim 2, characterized in that: The air intake assembly (404) comprises a second air intake pipe (4041), a lifting ring groove (4042) is provided on the inner side of the second air intake pipe (4041) near the bottom, a push spring (4043) is fixedly connected to the top of the lifting ring groove (4042), a limit ring (4044) is fixedly connected to the bottom of the push spring (4043), and a sealing tube (4045) is fixedly connected to the inner side of the limit ring (4044).

4. The substrate edge grinding control mechanism for liquid crystal display module production according to claim 3, characterized in that: The pushing assembly (405) comprises a U-shaped positioning frame (4051), a rotating positioning shaft (4052) is installed on the inner side of the U-shaped positioning frame (4051), a rotating block (4053) is installed on the outer side of the rotating positioning shaft (4052), the front and back sides of the rotating block (4053) are fixedly connected to a torque spring (4054), and a rotating pushing plate (4055) is installed on one side of the rotating block (4053).

5. The substrate edge grinding control mechanism for liquid crystal display module production according to claim 1, characterized in that: Positioning grooves are provided on the front and back sides of the inner side of the transmission belt (3013); the width of the positioning groove of the transmission belt (3013) is the same as the thickness of the transmission circular plates on the front and back sides of the transmission roller (303); the bottom of the adsorption groove (304) is connected to the suction component (306); and the internal space of the adsorption groove (304) is connected to the opening at the bottom of the suction component (306).

6. The substrate edge grinding control mechanism for liquid crystal display module production according to claim 4, characterized in that: Two of the push plates (305) and the push components (405) in the longitudinal direction form a group, the spacing between two adjacent air suction components (306) is the same as the spacing between each group of push plates (305), the spacing between two adjacent air suction port components (404) is the same as the spacing between each group of push components (405), and the longitudinal spacing of the air suction port components (404) is the same as the longitudinal spacing of the air suction components (306).

7. The substrate edge grinding control mechanism for liquid crystal display module production according to claim 4, characterized in that: The outer diameter of the sealing tube (4045) is gap-matched with the top opening diameter of the lifting groove (3062); a slope is provided at the bottom of the sealing tube (4045); the slope at the bottom of the sealing tube (4045) and the sealing slope (3064) are matched with each other, and a layer of sealing rubber is provided on the sealing slope (3064) and the slope at the bottom of the sealing tube (4045).

8. A control method for a substrate edge grinding control mechanism for producing a liquid crystal display module according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. When the liquid crystal display module substrate is transported to the position where the edge grinding mechanism is located, the first motor (308) drives the rotating disk (309) to rotate, and then drives the first rotating push column (3010) to rotate, and under the transmission of the transmission rod (3011) and the rotating positioning ring (3012), the second rotating push column (407) is driven to perform reciprocating motion, and then drives the gas compressor (401), the connecting pipe (402), the air box (403), the air inlet assembly (404) and the pushing assembly (405) to perform reciprocating motion, and then when the suction assembly (4) is located on the right side, the gas compressor (401) works to extract air from the lifting groove (3062) through the gas compressor (401), and then the lifting block (3063) rises, resulting in a negative pressure state inside the adsorption groove (304). At this time, the adsorption groove (304) and the transmission belt (3013) cooperate to adsorb the liquid crystal display module substrate; S2. During the rotation of the rotating disk (309), the suction component (4) is pushed to move to the left. During the movement of the pushing component (405), the pushing plate (305) is pushed to move to the left, and then the transmission belt (3013) is driven to move outside the transmission roller (303), thereby driving the liquid crystal display substrate to move toward the edge grinding component (104). When the first rotating pushing column (3010) rotates to any angle from 0 to 180 degrees, the first motor (308) can be stopped, and then the substrate is positioned by the positioning conveying component (3), the suction component (4) and the positioning seat component (1) to complete the edge grinding. When the first rotating pushing column (3010) rotates to 180 degrees, the gas compressor (401) works to inject gas into the lifting groove (3062) through the suction port component (404), so that the lifting block (3063) returns to its original position, and the internal air pressure of the adsorption groove (304) returns to a normal value, and then the first rotating push column (3010) continues to rotate to drive the suction component (4) to move to the right. When the pushing component (405) contacts the pushing plate (305), the friction between the transmission belt (3013) and the substrate prevents the transmission belt (3013) from moving, and the rotating pushing plate (4055) continues to move, causing the rotating pushing plate (4055) and the rotating block (4053) to rotate along the rotating positioning axis (4052). After the pushing component (405) passes the pushing plate (305), the rotating pushing plate (4055) rotates to its original position under the action of the torque spring (4054), and the next substrate pushing operation can be carried out, which can effectively control the moving distance of the substrate. S3. During the contact between the air inlet assembly (404) and the air inlet assembly (306), the sealing tube (4045) and the limiting ring (4044) are pushed upward by the bottom of the sealing tube (4045), so that the pushing spring (4043) is compressed. Then, when the center lines of the air inlet assembly (404) and the air inlet assembly (306) coincide, the pushing spring (4043) pushes the limiting ring (4044) and the sealing tube (4045) downward, so that the bottom inclined surface of the sealing tube (4045) and the sealing inclined surface (3064) fit together to complete the sealing of the contact position between the air inlet assembly (306) and the air inlet assembly (404), thereby avoiding gas leakage at the contact position between the air inlet assembly (306) and the air inlet assembly (404), which may affect the normal use of the equipment. S4. Determine whether cracks appear on the substrate. When the suction component (306) cooperates with the suction port component (404) to make the interior of the adsorption groove (304) in a negative pressure state, the height of the lifting block (3063) is monitored by the height detection sensor (3061). Since the interior of the adsorption groove (304) is in a negative pressure state, if cracks appear on the substrate contacted by the adsorption groove (304), gas will enter the adsorption groove (304), causing the air pressure inside the adsorption groove (304) to return to normal. At this time, the height of the lifting block (3063) will drop. If the suction component (4) is not performing gas injection work, it means that cracks appear on the substrate at this time, which facilitates rapid detection of whether cracks appear on the substrate.

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