Liquid crystal substrate breaking and transporting device and method with weighing function

Abstract

The present invention provides a liquid crystal substrate breaking and transporting device and method with a weighing function, including a support table, a conveyor belt, an upper box body and a lower box body. The upper box body is connected to the top surface of the lower box body, and an infrared detector is connected to the side wall of the upper box body. The support table penetrates through the inside of the lower box body, and a conveyor belt is arranged inside the support table. A breaking plate group is arranged on the inner wall of the lower box body, and two groups of breaking plate groups are arranged in a mirror image; S1, sucking and clamping; S2, breaking and weighing; S3, screening and judging; S4, marking; S5, placing and conveying. Through the cooperation of the moving clamping mechanism and the fixed clamping mechanism, the liquid crystal substrate glass is clamped, and two groups of breaking plate groups are controlled to divide the liquid crystal substrate glass with a reserved cutting groove into two halves. After being divided into two halves, the liquid crystal substrate glass is flipped by a flipping mechanism, and a gravity sensor is used for weighing, so that the liquid crystal substrate glass that does not meet the standard weight can be screened out, which is convenient for adjusting the weight of the liquid crystal substrate glass in subsequent production and improves the adjustment efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal substrate glass processing equipment, and particularly relates to a liquid crystal substrate breaking and transporting device and method with a weighing function. Background Art

[0002] Liquid crystal substrate glass is an important part of liquid crystal flat panel displays. In the entire manufacturing process of liquid crystal substrate glass, the main technologies include feeding, thin plate forming, and post-processing. Among them, the feeding technology mainly depends on the quality of the formula. First, the glass raw materials are melted into a low-viscosity and uniform glass melt in a high-temperature furnace. Not only the physical and chemical properties of the glass need to be considered, but also the optimal raw material formula should be selected without changing the chemical composition to effectively reduce the glass melting temperature, clarify the glass, and at the same time achieve specific glass properties to meet the requirements of actual applications. The thin plate forming technology is crucial for dimensional accuracy, weight accuracy, surface properties, and whether further processing and grinding are required to achieve special physical and chemical property requirements. The post-processing includes processes such as glass cutting, grinding, cleaning, and heat treatment.

[0003] Usually, after the liquid crystal substrate glass is produced, it needs to be broken into small pieces and then further processed. After breaking, the small pieces of liquid crystal substrate glass need to be weighed and detected. Currently, a gravity detection instrument is added to the conveyor belt used for transporting after the liquid crystal substrate glass is broken to weigh the passing liquid crystal substrate glass.

[0004] However, in this weighing method, since the liquid crystal substrate glass is transported on the conveyor belt, it is difficult to ensure the weighing accuracy due to the tension, vibration, and external environment interference of the conveyor belt during transportation.

[0005] At the same time, after the liquid crystal substrate glass is broken, it needs to be weighed at the weighing position on the conveyor belt before the liquid crystal substrate glass that does not meet the gravity standard can be detected, and then the production parameters of the previous production equipment can be adjusted. The weighing detection is relatively lagging, resulting in a reduction in the adjustment efficiency.

[0006] In summary, there is a need for a device that can weigh liquid crystal substrate glass efficiently and accurately at present. Summary of the Invention

[0007] In view of the deficiencies of the prior art, the present invention provides a liquid crystal substrate breaking and transporting device with a weighing function, which solves the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0009] The liquid crystal substrate breaking and transferring device with a weighing function includes a support table, a conveyor belt, an upper box body, and a lower box body. The upper box body is connected to the top surface of the lower box body. An infrared detector is connected to the side wall of the upper box body. The support table penetrates through the inside of the lower box body, and a conveyor belt is arranged inside the support table. A board-breaking group is arranged on the inner wall of the lower box body. There are two groups of the board-breaking group arranged in a mirror image. The board-breaking group includes a flipping mechanism, a fixed clamping mechanism, a third pneumatic rod, and a moving clamping mechanism. The flipping mechanism is connected to the inner wall of the lower box body. A fixed clamping mechanism is connected to one side of the flipping mechanism. A third pneumatic rod is arranged on the top surface of the fixed clamping mechanism, and a moving clamping mechanism is connected to the telescopic end of the third pneumatic rod.

[0010] The fixed clamping mechanism includes a controller, a first side plate, a gravity sensor, a first limiting plate, and a first fixing plate. The first fixing plate and the first limiting plate are arranged in parallel and are both vertically connected to the inner wall of the first side plate. A controller is arranged on the outer wall of the first side plate. A gravity sensor is connected to the inner wall of the first side plate. The gravity sensor, the controller, and the third pneumatic rod are electrically connected.

[0011] Furthermore, the fixed clamping mechanism further includes a first negative pressure plate, a guide rod, a first pneumatic rod, and an insertion plate. The first pneumatic rod is connected to the top surface of the first fixing plate. The telescopic bottom end of the first pneumatic rod penetrates through the inside of the first fixing plate and is connected to the first negative pressure plate. A plurality of first suction cups are connected to the bottom surface of the first negative pressure plate. A guide rod is connected to the top surface of the first negative pressure plate. The guide rod penetrates through and is connected to the inside of the first fixing plate. An insertion plate is fixed to the top surface of the first fixing plate.

[0012] Furthermore, two first positioning blocks are fixed to the bottom surface of the side wall of the first fixing plate. The two first positioning blocks are arranged in a mirror image with respect to the vertical center line of the first fixing plate. The first negative pressure plate is arranged between the two first positioning blocks. The thickness of the first positioning block is greater than the sum of the thicknesses of the first negative pressure plate and the first suction cups.

[0013] Furthermore, the moving clamping mechanism includes a marking component, a second side plate, a second limiting plate, a second fixing plate, a fixing block, and an insertion cylinder. The second fixing plate and the first fixing plate are arranged in parallel and are both vertically connected to the inner wall of the second side plate. The marking component penetrates through the inside of the second side plate. A fixing block and an insertion cylinder are fixed to the top surface of the second fixing plate. The side wall of the fixing block is connected to the third pneumatic rod. The insertion plate is inserted into the insertion cylinder.

[0014] Furthermore, the dynamic clamping mechanism also includes a second pneumatic rod and a second negative pressure plate, the second pneumatic rod is arranged on the top surface of the second fixed plate, the telescopic bottom end of the second pneumatic rod passes through the interior of the second fixed plate and is connected to the second negative pressure plate, the bottom surface of the second negative pressure plate is connected to a plurality of second suction cups, the bottom surface of the side wall of the second fixed plate is fixed with a second positioning block, two second positioning blocks are mirrored about the vertical center line of the second fixed plate, the second negative pressure plate is arranged between the two second positioning blocks, and the thickness of the second positioning block is greater than the sum of the thickness of the second negative pressure plate and the second suction cup.

[0015] Furthermore, the marking assembly includes a pump box, a check valve, a first guide cylinder, a spring, a second guide cylinder, a marking plug and a push block, the first guide cylinder being inserted into the second side plate, one end of the first guide cylinder passing through the outer wall of the second side plate and being connected to the check valve, the check valve being connected to the pump box at one end away from the first guide cylinder, the other end of the first guide cylinder passing through the inner wall of the second side plate and being inserted with the second guide cylinder inside, the second guide cylinder being inserted into the push block at one end away from the first guide cylinder, a slide groove being provided inside the push block, a stop ring being fixed to the side wall of the second guide cylinder, the stop ring being slidably inserted into the slide groove, an adsorbent marking plug being inserted into one end of the second guide cylinder away from the first guide cylinder, a spring being sleeved on the outer wall of the second guide cylinder, and the spring being connected between the side wall of the push block and the inner wall of the second side plate.

[0016] Furthermore, the flipping mechanism includes a sleeve, an adjusting bolt, a sliding support rod, a first motor, a connecting plate, a second motor and a rotating column, the sleeve is fixed to the inner wall of the lower box, the sliding support rod is slidably inserted inside the sleeve, the side wall of the sliding support rod is connected to the adjusting bolt, the side wall of the sleeve is provided with a sliding interface, the adjusting bolt is slidably inserted inside the sliding interface, the top end of the sliding support rod is rotatably connected to the connecting plate, the top side wall of the sliding support rod is provided with a first motor, the rotating end of the first motor is connected to the side wall of the connecting plate, the top surface of the connecting plate is provided with a second motor, the rotating end of the second motor is connected to the inside of the connecting plate and is connected to a rotating column, and the rotating column is connected to the top surface of the first fixed plate.

[0017] A method for breaking and transporting a liquid crystal substrate with a weighing function, the weighing method comprising the following steps:

[0018] S1, suction and clamping;

[0019] Place the liquid crystal substrate glass with reserved cutting grooves on the conveyor belt for transportation. When entering the internal space of the upper box body and the lower box body, simultaneously start the first pneumatic rods and the second pneumatic rods of the two sets of board-breaking groups. The first negative pressure plate and the second negative pressure plate descend until the first suction cup and the second suction cup are attached to the top surface of the liquid crystal substrate glass, and use negative pressure to tightly suck the liquid crystal substrate glass. Then start the first pneumatic rod and the second pneumatic rod again to pull the liquid crystal substrate glass back and rise. The liquid crystal substrate glass is separated from the conveyor belt until the bottom surface of the liquid crystal substrate glass is higher than the heights of the first limiting plate and the second limiting plate. Then start the third pneumatic rod to pull the fixed block, and the second fixing plate moves towards the first fixing plate. The first limiting plate and the second limiting plate move to the bottom surface of the liquid crystal substrate glass and clamp the liquid crystal substrate glass between the gravity sensor and the push block;

[0020] S2. Break the board and weigh;

[0021] Simultaneously start the first motors of the two sets of board-breaking groups, drive the connecting plates to turn upwards to the vertical state, break the liquid crystal substrate glass with cutting grooves into two parts, start the second motor to drive the rotating column to rotate, drive the first fixing plate to rotate, and turn the gravity sensor to the bottom of the liquid crystal substrate glass;

[0022] Simultaneously start the first pneumatic rod and the second pneumatic rod, further pull back the first negative pressure plate to fit with the bottom surface of the first fixing plate, and further pull back the second negative pressure plate to fit with the bottom surface of the second fixing plate. The top surface of the liquid crystal substrate glass is blocked by the first positioning block and the second positioning block and separated from the first suction cup and the second suction cup. The liquid crystal substrate glass is attached to the gravity sensor. Start the third pneumatic rod to push the fixed block, separate the second fixing plate from the first fixing plate, and separate the push block from the liquid crystal substrate glass. Use the gravity sensor to weigh the liquid crystal substrate glass;

[0023] S3. Screen and judge;

[0024] The gravity sensor transmits the weighed weight signal to the controller, and use the controller to judge whether it meets the preset weight standard. The preset weight difference range is ±5g;

[0025] No, go to step S4;

[0026] Yes, go to step S5;

[0027] S4. Mark;

[0028] The controller controls the activation of the third pneumatic rod and the pump box. The pump box discharges the marking liquid, and the marking liquid enters the interiors of the first guide cylinder and the second guide cylinder through the check valve. The third pneumatic rod pulls the second fixing plate back and close to the first fixing plate, and then clamps the liquid crystal substrate glass between the gravity sensor and the push block. The liquid crystal substrate glass squeezes the push block to move towards the second side plate, the spring compresses, the second guide cylinder moves inside the push block, the stop ring slides in the chute, the marking plug extends out from inside the push block and fits against the liquid crystal substrate glass, the second guide cylinder is inserted into the first guide cylinder, reducing the internal space of the first guide cylinder and the second guide cylinder, squeezing the marking liquid into the marking plug. The marking plug is squeezed by the liquid crystal substrate glass, and the marking liquid adheres to the liquid crystal substrate glass that does not meet the weight standard;

[0029] S5. Place and convey;

[0030] Start the first motor to drive the connecting plate to flip and reset to the horizontal, activate the second pneumatic rod to push out the second negative pressure plate, the second suction cup tightly sucks on the liquid crystal substrate glass, activate the third pneumatic rod to drive the second fixing plate to separate from the first fixing plate, the second suction cup drives the liquid crystal substrate glass to separate from the first limit plate, and then quickly close the second negative pressure plate to separate the liquid crystal substrate glass from the second limit plate and place it on the conveyor belt;

[0031] Finally, the marked liquid crystal substrate glass is identified by the infrared detector, and the signal is transmitted to the robotic arm. The robotic arm is used to take out and eliminate the marked liquid crystal substrate glass, and the parameters of the pre - placed liquid crystal substrate glass production equipment are adjusted until there is no liquid crystal substrate glass that does not meet the weight standard.

[0032] The present invention provides a liquid crystal substrate splitting and transferring device and method with a weighing function. Compared with the prior art, it has the following beneficial effects: Through the cooperation of the moving clamping mechanism and the fixed clamping mechanism, the liquid crystal substrate glass is clamped, the two splitting groups are controlled to split the liquid crystal substrate glass with a reserved cutting groove into two halves, and after splitting into two halves, the liquid crystal substrate glass is flipped by the flipping mechanism, and the gravity sensor is used for weighing. The weighing is stable and accurate, and it can screen out the liquid crystal substrate glass that does not meet the standard weight, facilitating the adjustment of the weight of the subsequent produced liquid crystal substrate glass and improving the adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0034] Figure 1 Shows the top view of the structure of the liquid crystal substrate splitting and transferring device with a weighing function of the present invention;

[0035] Figure 2 shows a schematic diagram of the overall internal structure of the present invention;

[0036] Figure 3 shows a schematic diagram of the state after the flipping mechanism, fixed clamping mechanism and moving clamping mechanism of the present invention cooperate to split the liquid crystal substrate glass;

[0037] Figure 4 shows a structural sectional view of the state where the fixed clamping mechanism and the moving clamping mechanism of the present invention cooperate to clamp the liquid crystal substrate glass;

[0038] Figure 5 shows a schematic diagram of the state where the gravity sensor of the present invention weighs the liquid crystal substrate glass;

[0039] Figure 6 shows a structural sectional view of the marking assembly of the present invention in a compressed marking state;

[0040] As shown in the figure: 1. Support table; 2. Conveyor belt; 3. Upper box body; 4. Infrared detector; 5. Lower box body; 6. Flipping mechanism; 61. Sleeve; 611. Sliding interface; 62. Adjusting bolt; 63. Sliding support rod; 64. First motor; 65. Connecting plate; 66. Second motor; 67. Rotating column; 7. Fixed clamping mechanism; 71. Controller; 72. First side plate; 73. Gravity sensor; 74. First limiting plate; 75. First fixing plate; 751. First positioning block; 76. First negative pressure plate; 761. First suction cup; 77. Guide rod; 78. First pneumatic rod; 79. Insertion plate; 8. Moving clamping mechanism; 81. Marking assembly; 811. Pump box; 812. Check valve; 813. First guide cylinder; 814. Spring; 815. Second guide cylinder; 8151. Stop ring; 816. Marking plug; 817. Pushing block; 8171. Chute; 82. Second side plate; 83. Second limiting plate; 84. Second negative pressure plate; 841. Second suction cup; 85. Second pneumatic rod; 86. Second fixing plate; 861. Second positioning block; 87. Fixed block; 88. Insertion cylinder; 9. Third pneumatic rod. Specific embodiments

[0041] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] Embodiment 1

[0043] To solve the technical problems in the background art, the following liquid crystal substrate splitting and transporting device with a weighing function is provided:

[0044] Combined with Figures 1-6 As shown, the liquid crystal substrate splitting and transporting device with a weighing function provided by the present invention includes a support table, a conveyor belt, an upper box body and a lower box body. The upper box body is connected to the top surface of the lower box body. An infrared detector is connected to the side wall of the upper box body. The support table penetrates through the inside of the lower box body. A conveyor belt is arranged inside the support table. A splitting group is arranged on the inner wall of the lower box body. There are two groups of splitting groups arranged mirror-symmetrically. The splitting group includes a flipping mechanism, a fixed clamping mechanism, a third pneumatic rod and a moving clamping mechanism. The flipping mechanism is connected to the inner wall of the lower box body. A fixed clamping mechanism is connected to one side of the flipping mechanism. A third pneumatic rod is arranged on the top surface of the fixed clamping mechanism. The telescopic end of the third pneumatic rod is connected to the moving clamping mechanism;

[0045] The fixed clamping mechanism includes a controller, a first side plate, a gravity sensor, a first limiting plate and a first fixing plate. The first fixing plate and the first limiting plate are arranged in parallel and are both vertically connected to the inner wall of the first side plate. A controller is arranged on the outer wall of the first side plate. A gravity sensor is connected to the inner wall of the first side plate. The gravity sensor, the controller and the third pneumatic rod are electrically connected;

[0046] Through the cooperation of the moving clamping mechanism and the fixed clamping mechanism, the liquid crystal substrate glass is clamped, and two splitting groups are controlled to divide the liquid crystal substrate glass with a reserved cutting groove into two halves. After being divided into two halves, the liquid crystal substrate glass is flipped by the flipping mechanism, and weighed by the gravity sensor. The weighing is stable and accurate, and the liquid crystal substrate glass that does not meet the standard weight can be screened out, which is convenient for adjusting the weight of the liquid crystal substrate glass in subsequent production and improves the adjustment efficiency.

[0047] As an improvement of the above technical solution, the fixed clamping mechanism further includes a first negative pressure plate, a guide rod, a first pneumatic rod and an insertion plate. The first pneumatic rod is connected to the top surface of the first fixing plate. The telescopic bottom end of the first pneumatic rod penetrates through the inside of the first fixing plate and is connected to the first negative pressure plate. A plurality of first suction cups are connected to the bottom surface of the first negative pressure plate. A guide rod is connected to the top surface of the first negative pressure plate. The guide rod penetrates through and is connected to the inside of the first fixing plate. An insertion plate is fixed on the top surface of the first fixing plate;

[0048] The first pneumatic rod is pushed to lower the negative pressure plate, and the liquid crystal substrate glass is sucked tightly by the suction cups and lifted, which is convenient for positioning and clamping the liquid crystal substrate glass.

[0049] As an improvement of the above technical solution, two first positioning blocks are fixed on the bottom surface of the side wall of the first fixing plate. The two first positioning blocks are arranged mirror-symmetrically about the vertical midline of the first fixing plate. The first negative pressure plate is arranged between the two first positioning blocks. The thickness of the first positioning block is greater than the sum of the thicknesses of the first negative pressure plate and the first suction cups;

[0050] After sucking and tightening the liquid crystal substrate glass with a suction cup and lifting it, the liquid crystal substrate glass is stopped and positioned by two first positioning blocks, facilitating the separation of the liquid crystal substrate glass from the first suction cup for clamping and weighing operations.

[0051] As an improvement of the above technical solution, the flipping mechanism includes a sleeve, an adjusting bolt, a sliding support rod, a first motor, a connecting plate, a second motor, and a rotating column. The sleeve is fixed to the inner wall of the lower box. A sliding support rod is slidably inserted into the sleeve. An adjusting bolt is connected to the side wall of the sliding support rod. A sliding interface is provided on the side wall of the sleeve. The adjusting bolt is slidably inserted into the sliding interface. The top end of the sliding support rod is rotatably connected to the connecting plate. A first motor is provided on the side wall of the top end of the sliding support rod. The rotating end of the first motor penetrates and is connected to the side wall of the connecting plate. A second motor is provided on the top surface of the connecting plate. The rotating end of the second motor penetrates the inside of the connecting plate and is connected to a rotating column. The rotating column is connected to the top surface of the first fixing plate.

[0052] Embodiment 2

[0053] As Figures 4-6 shown, on the basis of the above embodiment, the following content is further given in this embodiment:

[0054] After weighing the liquid crystal substrate glass, since the difference in glass weight is small, it is difficult to distinguish the liquid crystal substrate glass with insufficient gravity. It can only be judged as a non-compliant liquid crystal substrate glass according to the conveying position, resulting in low screening efficiency. To solve the above problems, the following structure is given;

[0055] The moving clamping mechanism includes a marking component, a second side plate, a second limiting plate, a second fixing plate, a fixing block, and an inserting cylinder. The second fixing plate and the first fixing plate are arranged in parallel and are both vertically connected to the inner wall of the second side plate. The marking component penetrates through the second side plate. A fixing block and an inserting cylinder are fixed on the top surface of the second fixing plate. A third pneumatic rod is connected to the side wall of the fixing block. An inserting plate is inserted into the inserting cylinder.

[0056] As an improvement of the above technical solution, the moving clamping mechanism further includes a second pneumatic rod and a second negative pressure plate. The second pneumatic rod is arranged on the top surface of the second fixing plate. The telescopic bottom end of the second pneumatic rod penetrates through the inside of the second fixing plate and is connected to the second negative pressure plate. A plurality of second suction cups are connected to the bottom surface of the second negative pressure plate. A second positioning block is fixed to the bottom surface of the side wall of the second fixing plate. There are two second positioning blocks mirror-symmetrically arranged about the vertical midline of the second fixing plate. The second negative pressure plate is arranged between the two second positioning blocks. The thickness of the second positioning block is greater than the sum of the thicknesses of the second negative pressure plate and the second suction cups.

[0057] As an improvement of the above technical solution, the marking component includes a pump box, a check valve, a first guide cylinder, a spring, a second guide cylinder, a marking plug and a push block. The first guide cylinder is inserted into the second side plate, one end of the first guide cylinder penetrates through the outer wall of the second side plate and is connected with a check valve, the check valve is connected with a pump box at the end far from the first guide cylinder, the other end of the first guide cylinder penetrates through the inner wall of the second side plate and a second guide cylinder is inserted into it. The end of the second guide cylinder far from the first guide cylinder is inserted into the push block. A chute is formed inside the push block. A stop ring is fixed on the side wall of the second guide cylinder, and the stop ring is slidably inserted into the chute. A marking plug with adsorbability is inserted into the end of the second guide cylinder far from the first guide cylinder. A spring is sleeved on the outer wall of the second guide cylinder, and the spring is connected between the side wall of the push block and the inner wall of the second side plate;

[0058] After the liquid crystal substrate glass is turned over and weighed, for the liquid crystal substrate glass that does not meet the weight standard, the distance between the first side plate and the second side plate is reduced by pulling with the third pneumatic rod, so that the liquid crystal substrate glass presses the push block, and the internal volume is reduced by inserting the second guide cylinder into the first guide cylinder, so as to squeeze the marking solution inside the first guide cylinder into the marking plug, and the side of the liquid crystal substrate glass is marked by the marking plug, and the marking and screening operation is simple.

[0059] Embodiment III

[0060] To solve the technical problems in the background art, the following liquid crystal substrate breaking and transporting method with a weighing function is given:

[0061] The weighing method includes the following steps:

[0062] S1. Sucking and clamping;

[0063] Place the liquid crystal substrate glass with a reserved cutting groove on the conveyor belt for transportation. When entering the internal space of the upper box body and the lower box body, start the first pneumatic rod and the second pneumatic rod of the two breaking groups at the same time. The first negative pressure plate and the second negative pressure plate descend until the first suction cup and the second suction cup are attached to the top surface of the liquid crystal substrate glass, and the liquid crystal substrate glass is sucked tightly by negative pressure. Then start the first pneumatic rod and the second pneumatic rod again to pull the liquid crystal substrate glass back up, and the liquid crystal substrate glass is separated from the conveyor belt until the bottom surface of the liquid crystal substrate glass is higher than the height of the first limiting plate and the second limiting plate. Then start the third pneumatic rod to pull the fixed block, the second fixing plate moves towards the first fixing plate, the first limiting plate and the second limiting plate move to the bottom surface of the liquid crystal substrate glass, and the liquid crystal substrate glass is clamped between the gravity sensor and the push block;

[0064] S2. Breaking and weighing;

[0065] Start the first motors of two sets of board-breaking groups simultaneously, drive the connecting plates to turn upwards to the vertical state, break the liquid crystal substrate glass with cutting grooves into two parts, start the second motor to drive the rotating column to rotate, drive the first fixing plate to rotate, and turn the gravity sensor to the bottom of the liquid crystal substrate glass;

[0066] Start the first pneumatic rod and the second pneumatic rod simultaneously, pull the first negative pressure plate further back to fit the bottom surface of the first fixing plate, pull the second negative pressure plate further back to fit the bottom surface of the second fixing plate, the top surface of the liquid crystal substrate glass is blocked by the first positioning block and the second positioning block and separated from the first suction cup and the second suction cup, the liquid crystal substrate glass fits on the gravity sensor, start the third pneumatic rod to push the fixed block, separate the second fixing plate from the first fixing plate, separate the push block from the liquid crystal substrate glass, and weigh the liquid crystal substrate glass using the gravity sensor;

[0067] S3. Screening and judgment;

[0068] The gravity sensor transmits the weighed weight signal to the controller, and the controller judges whether it meets the preset weight standard. The preset weight difference range is ±5g;

[0069] No, go to step S4;

[0070] Yes, go to step S5;

[0071] S4. Marking;

[0072] The controller controls to start the third pneumatic rod and the pump box. The pump box exports the marking liquid. The marking liquid enters the inside of the first guide cylinder and the second guide cylinder through the check valve. The third pneumatic rod pulls the second fixing plate back and close to the first fixing plate, and then clamps the liquid crystal substrate glass between the gravity sensor and the push block. The liquid crystal substrate glass squeezes the push block to move towards the second side plate, the spring compresses, the second guide cylinder moves inside the push block, the stop ring slides in the chute, the marking plug extends from inside the push block and fits the liquid crystal substrate glass, the second guide cylinder is inserted into the first guide cylinder, reducing the internal space of the first guide cylinder and the second guide cylinder, squeezing the marking liquid into the marking plug. The marking plug is squeezed by the liquid crystal substrate glass, and the marking liquid adheres to mark the liquid crystal substrate glass that does not meet the weight standard;

[0073] S5. Placing and conveying;

[0074] Start the first motor to drive the connecting plate to turn back to the horizontal position, start the second pneumatic rod to push out the second negative pressure plate, the second suction cup tightly sucks on the liquid crystal substrate glass, start the third pneumatic rod to drive the second fixing plate to separate from the first fixing plate, the second suction cup drives the liquid crystal substrate glass to separate from the first limiting plate, and then quickly close the second negative pressure plate, so that the liquid crystal substrate glass separates from the second limiting plate and is placed on the conveyor belt;

[0075] Finally, the marked liquid crystal substrate glass is identified by an infrared detector, and the signal is transmitted to the robotic arm. The robotic arm is used to take out and eliminate the marked liquid crystal substrate glass, and the parameters of the front liquid crystal substrate glass production equipment are adjusted until there is no liquid crystal substrate glass that does not meet the weight standard.

[0076] The working principle and usage process of the present invention:

[0077] S1. Suction and clamping;

[0078] The liquid crystal substrate glass with reserved cutting grooves is placed on the conveyor belt for transportation. When it enters the internal space of the upper box body and the lower box body, the first pneumatic rods and the second pneumatic rods of the two sets of plate-breaking groups are started simultaneously. The first negative pressure plate and the second negative pressure plate descend until the first suction cup and the second suction cup are attached to the top surface of the liquid crystal substrate glass. The liquid crystal substrate glass is sucked tightly by negative pressure. Then, the first pneumatic rod and the second pneumatic rod are started again to pull the liquid crystal substrate glass back and rise. The liquid crystal substrate glass is separated from the conveyor belt until the bottom surface of the liquid crystal substrate glass is higher than the height of the first limit plate and the second limit plate. Then, the third pneumatic rod is started to pull the fixed block, and the second fixing plate moves towards the first fixing plate. The first limit plate and the second limit plate move to the bottom surface of the liquid crystal substrate glass, and the liquid crystal substrate glass is clamped between the gravity sensor and the push block;

[0079] S2. Plate-breaking and weighing;

[0080] The first motors of the two sets of plate-breaking groups are started simultaneously to drive the connecting plates to turn upwards to a vertical state, and the liquid crystal substrate glass with cutting grooves is broken into two parts. The second motor is started to drive the rotating column to rotate, driving the first fixing plate to rotate, and turning the gravity sensor to the bottom of the liquid crystal substrate glass;

[0081] The first pneumatic rod and the second pneumatic rod are started simultaneously to further pull back the first negative pressure plate to fit the bottom surface of the first fixing plate, and the second negative pressure plate is further pulled back to fit the bottom surface of the second fixing plate. The top surface of the liquid crystal substrate glass is blocked by the first positioning block and the second positioning block and separated from the first suction cup and the second suction cup. The liquid crystal substrate glass is attached to the gravity sensor. The third pneumatic rod is started to push the fixed block, the second fixing plate is separated from the first fixing plate, and the push block is separated from the liquid crystal substrate glass. The weight of the liquid crystal substrate glass is weighed by the gravity sensor;

[0082] S3. Screening and judgment;

[0083] The gravity sensor transmits the weighed weight signal to the controller, and the controller is used to judge whether it meets the preset weight standard. The preset weight difference range is ±5g;

[0084] No, go to step S4;

[0085] Yes, go to step S5;

[0086] S4. Marking;

[0087] The controller controls the start of the third pneumatic rod and the pump box. The pump box discharges the marking liquid. The marking liquid enters the interiors of the first guide cylinder and the second guide cylinder through the check valve. The third pneumatic rod pulls the second fixed plate back and close to the first fixed plate, then clamps the liquid crystal substrate glass between the gravity sensor and the push block. The liquid crystal substrate glass squeezes the push block to move towards the second side plate, the spring compresses, the second guide cylinder moves inside the push block, the stop ring slides in the chute, the marking plug extends out from inside the push block and fits against the liquid crystal substrate glass, the second guide cylinder is inserted into the first guide cylinder, reducing the internal space of the first guide cylinder and the second guide cylinder, squeezing the marking liquid into the marking plug. The marking plug is squeezed by the liquid crystal substrate glass, and the marking liquid adheres to mark the liquid crystal substrate glass that does not meet the weight standard;

[0088] S5. Placing and conveying;

[0089] Start the first motor to drive the connecting plate to flip and reset to the horizontal, start the second pneumatic rod to push out the second negative pressure plate, the second suction cup tightly sucks on the liquid crystal substrate glass, start the third pneumatic rod to drive the second fixed plate to separate from the first fixed plate, the second suction cup drives the liquid crystal substrate glass to separate from the first limiting plate, and then quickly close the second negative pressure plate to separate the liquid crystal substrate glass from the second limiting plate and place it on the conveyor belt;

[0090] Finally, the marked liquid crystal substrate glass is identified by the infrared detector, and the signal is transmitted to the robotic arm. The robotic arm is used to take out and eliminate the marked liquid crystal substrate glass, and the parameters of the pre - liquid crystal substrate glass production equipment are adjusted until there is no liquid crystal substrate glass that does not meet the weight standard.

[0091] It should be noted that in this article, relational terms such as the first and the second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non - exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0092] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A liquid crystal substrate breaking and transferring device with a weighing function, characterized in that: It includes a support platform, a conveyor belt, an upper box body and a lower box body. The upper box body is connected to the top surface of the lower box body. An infrared detector is connected to the side wall of the upper box body. The support platform penetrates through the inside of the lower box body. A conveyor belt is arranged inside the support platform. A plate-breaking group is arranged on the inner wall of the lower box body. There are two groups of the plate-breaking group arranged in a mirror image. The plate-breaking group includes a flipping mechanism, a fixed clamping mechanism, a third pneumatic rod and a moving clamping mechanism. The flipping mechanism is connected to the inner wall of the lower box body. A fixed clamping mechanism is connected to one side of the flipping mechanism. A third pneumatic rod is arranged on the top surface of the fixed clamping mechanism. The telescopic end of the third pneumatic rod is connected to the moving clamping mechanism; The fixed clamping mechanism includes a controller, a first side plate, a gravity sensor, a first limiting plate and a first fixing plate. The first fixing plate and the first limiting plate are arranged in parallel and are both vertically connected to the inner wall of the first side plate. A controller is arranged on the outer wall of the first side plate. A gravity sensor is connected to the inner wall of the first side plate. The gravity sensor, the controller and the third pneumatic rod are electrically connected; The fixed clamping mechanism further includes a first negative pressure plate, a guide rod, a first pneumatic rod and an insertion plate. The first pneumatic rod is connected to the top surface of the first fixing plate. The telescopic bottom end of the first pneumatic rod penetrates through the inside of the first fixing plate and is connected to the first negative pressure plate. A plurality of first suction cups are connected to the bottom surface of the first negative pressure plate. A guide rod is connected to the top surface of the first negative pressure plate. The guide rod penetrates through and is connected to the inside of the first fixing plate. An insertion plate is fixed on the top surface of the first fixing plate; Two first positioning blocks are fixed on the bottom surface of the side wall of the first fixing plate. The two first positioning blocks are arranged in a mirror image with respect to the vertical center line of the first fixing plate. The first negative pressure plate is arranged between the two first positioning blocks. The thickness of the first positioning block is greater than the sum of the thicknesses of the first negative pressure plate and the first suction cups; The moving clamping mechanism includes a marking component, a second side plate, a second limiting plate, a second fixing plate, a fixing block and an insertion cylinder. The second fixing plate and the first fixing plate are arranged in parallel and are both vertically connected to the inner wall of the second side plate. The marking component penetrates through the inside of the second side plate. A fixing block and an insertion cylinder are fixed on the top surface of the second fixing plate. The side wall of the fixing block is connected to the third pneumatic rod. The insertion plate is inserted into the insertion cylinder; The moving clamping mechanism further includes a second pneumatic rod and a second negative pressure plate. The second pneumatic rod is arranged on the top surface of the second fixing plate. The telescopic bottom end of the second pneumatic rod penetrates through the inside of the second fixing plate and is connected to the second negative pressure plate. A plurality of second suction cups are connected to the bottom surface of the second negative pressure plate. Two second positioning blocks are fixed on the bottom surface of the side wall of the second fixing plate. The two second positioning blocks are arranged in a mirror image with respect to the vertical center line of the second fixing plate. The second negative pressure plate is arranged between the two second positioning blocks. The thickness of the second positioning block is greater than the sum of the thicknesses of the second negative pressure plate and the second suction cups; The marking component includes a pump box, a check valve, a first guide cylinder, a spring, a second guide cylinder, a marking plug and a push block. The first guide cylinder is inserted into the interior of the second side plate. One end of the first guide cylinder penetrates through the outer wall of the second side plate and is connected with the check valve. The end of the check valve away from the first guide cylinder is connected with the pump box. The other end of the first guide cylinder penetrates through the inner wall of the second side plate and the second guide cylinder is inserted into it. The end of the second guide cylinder away from the first guide cylinder is inserted into the interior of the push block. A chute is formed inside the push block. A stop ring is fixed on the side wall of the second guide cylinder. The stop ring is slidably inserted into the interior of the chute. The marking plug with adsorption property is inserted into the end of the second guide cylinder away from the first guide cylinder. A spring is sleeved on the outer wall of the second guide cylinder. The spring is connected between the side wall of the push block and the inner wall of the second side plate.

2. The liquid crystal substrate breaking and transporting device with a weighing function according to claim 1, wherein: The flipping mechanism includes a sleeve, an adjusting bolt, a sliding support rod, a first motor, a connecting plate, a second motor and a rotating column. The sleeve is fixed on the inner wall of the lower box body. The sliding support rod is slidably inserted into the interior of the sleeve. An adjusting bolt is connected to the side wall of the sliding support rod. A sliding interface is formed on the side wall of the sleeve. The adjusting bolt is slidably inserted into the interior of the sliding interface. The top end of the sliding support rod is rotatably connected with the connecting plate. A first motor is arranged on the side wall at the top end of the sliding support rod. The rotating end of the first motor penetrates through and is connected to the side wall of the connecting plate. A second motor is arranged on the top surface of the connecting plate. The rotating end of the second motor penetrates through the interior of the connecting plate and is connected with the rotating column. The rotating column is connected to the top surface of the first fixing plate.

3. The method for breaking and transporting a liquid crystal substrate with a weighing function is characterized in that: Applying the liquid crystal substrate breaking and transporting device with a weighing function as described in the above claims 1-2, the weighing method includes the following steps: S1. Sucking and clamping; Place the liquid crystal substrate glass with reserved cutting grooves on the conveyor belt for transportation. When it enters the internal space of the upper box body and the lower box body, start the first pneumatic rods and the second pneumatic rods of the two breaking groups simultaneously. The first negative pressure plate and the second negative pressure plate descend until the first suction cup and the second suction cup are attached to the top surface of the liquid crystal substrate glass, and suck the liquid crystal substrate glass tightly by negative pressure. Then start the first pneumatic rod and the second pneumatic rod again to pull the liquid crystal substrate glass back and rise. The liquid crystal substrate glass is separated from the conveyor belt until the bottom surface of the liquid crystal substrate glass is higher than the heights of the first limiting plate and the second limiting plate. Then start the third pneumatic rod to pull the fixing block, and the second fixing plate moves towards the first fixing plate. The first limiting plate and the second limiting plate move to the bottom surface of the liquid crystal substrate glass and clamp the liquid crystal substrate glass between the gravity sensor and the push block. S2. Breaking and weighing; Start the first motors of the two breaking groups simultaneously to drive the connecting plates to flip upwards to the vertical state, break the liquid crystal substrate glass with cutting grooves into two parts. Start the second motor to drive the rotating column to rotate, drive the first fixing plate to rotate, and flip the gravity sensor to the bottom of the liquid crystal substrate glass. Start the first pneumatic rod and the second pneumatic rod simultaneously, pull the first negative pressure plate further back to fit against the bottom surface of the first fixed plate, and pull the second negative pressure plate further back to fit against the bottom surface of the second fixed plate. The top surface of the liquid crystal substrate glass is blocked by the first positioning block and the second positioning block and separated from the first suction cup and the second suction cup. The liquid crystal substrate glass is attached to the gravity sensor. Start the third pneumatic rod to push the fixed block, separate the second fixed plate from the first fixed plate, and separate the push block from the liquid crystal substrate glass. Use the gravity sensor to weigh the liquid crystal substrate glass; S3. Screening and judgment; The gravity sensor transmits the weighed weight signal to the controller, and the controller is used to judge whether it meets the preset weight standard. The preset weight difference range is ±5 g; No, go to step S4; Yes, go to step S5; S4. Marking; The controller controls the start of the third pneumatic rod and the pump box. The pump box discharges the marking liquid. The marking liquid enters the inside of the first guide cylinder and the second guide cylinder through the check valve. The third pneumatic rod pulls the second fixed plate back and close to the first fixed plate, and then clamps the liquid crystal substrate glass between the gravity sensor and the push block. The liquid crystal substrate glass squeezes the push block to move towards the second side plate, the spring compresses, the second guide cylinder moves inside the push block, the stop ring slides in the chute, the marking plug extends out from the inside of the push block and fits against the liquid crystal substrate glass, the second guide cylinder is inserted into the first guide cylinder, reducing the internal space of the first guide cylinder and the second guide cylinder, squeezing the marking liquid into the marking plug. The marking plug is squeezed by the liquid crystal substrate glass, and the marking liquid adheres to the liquid crystal substrate glass that does not meet the weight standard; S5. Placing and conveying; Start the first motor to drive the connecting plate to flip and reset to the horizontal, start the second pneumatic rod to push out the second negative pressure plate, the second suction cup sucks tightly on the liquid crystal substrate glass, start the third pneumatic rod to drive the second fixed plate to separate from the first fixed plate, the second suction cup drives the liquid crystal substrate glass to separate from the first limiting plate, and then quickly close the second negative pressure plate to separate the liquid crystal substrate glass from the second limiting plate and place it on the conveyor belt; Finally, the infrared detector identifies the marked liquid crystal substrate glass, transmits the signal to the robotic arm, and uses the robotic arm to take out and eliminate the marked liquid crystal substrate glass, and adjusts the parameters of the pre - liquid crystal substrate glass production equipment until there is no liquid crystal substrate glass that does not meet the weight standard.

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