High-speed and high-precision positioning cross type lifting device for glass substrate conveying

Abstract

The invention relates to the field of liquid crystal glass substrate production, and discloses a high-speed and high-precision positioning cross type lifting device for glass substrate conveying. The device comprises a lifting component, a cross conveying component and an automatic adjusting supporting frame component, the lifting component is composed of foot cups, a lifting frame assembly, a first power mechanism, a lifting mechanism, a tensioning structure and a dust removal system, and the device can be used in cooperation with other conveying equipment; the installed cross conveying component can achieve cross conveying of the glass substrates in the X direction and the Y direction, the installed foot cups have the height adjusting function, the overall height and levelness of the device can be accurately adjusted so as to adapt to the requirements of different installation environments, the arranged lifting mechanisms can achieve sheet flowing in the Z direction, and the lifting mechanisms are arranged on the left side and the right side of the device, so that the production efficiency is improved. Therefore, the lifting action of the conveying part can be controlled, the conveying of the glass substrate between the high station and the low station can be realized, and the adaptability and the stability are realized.

Description

Technical Field

[0001] This invention belongs to the field of liquid crystal glass substrate production technology, specifically a high-speed, high-precision positioning cross-type lifting device for transporting glass substrates. Background Technology

[0002] Currently, a large number of conveying devices are required in the production process of LCD glass substrates. The market demand for LCD glass panels is increasing, and the development of LCD glass panel production lines is also demanding higher production efficiency. In the existing production process, there is substrate conveying between upstream and downstream equipment at different heights and workstations.

[0003] However, common existing conveying equipment cannot fully meet the conveying needs of different substrate heights and different work positions. In addition, the conveying equipment has disadvantages such as large footprint, high equipment cost, and low conveying efficiency. Moreover, similar lifting equipment on the market is slow, has low production efficiency, and has defects such as equipment jamming and malfunction, which also results in high maintenance costs. Summary of the Invention

[0004] The purpose of this invention is to provide a high-speed, high-precision positioning cross-type lifting device for transporting glass substrates, in order to solve the problems mentioned above.

[0005] The technical solution adopted in this invention is as follows: A high-speed, high-precision positioning cross-type lifting device for glass substrate conveying includes a lifting component, a cross-conveying component, and an automatic adjusting support frame component. The lifting component consists of a foot cup, a lifting frame assembly, a first power mechanism, a lifting mechanism, a tensioning structure, and a dust removal system. The cross-conveying component consists of a small roller conveying mechanism, a lifting roller conveyor, a aligning mechanism, and a second photoelectric sensor. The automatic adjusting support frame component consists of a support frame, a fixed end support structure, and a sliding end support structure.

[0006] By adopting the above technical solution, this device can be used in conjunction with other conveying equipment. The installed cross-conveying components enable the cross-conveying of glass substrates in the X and Y directions. The installed foot cups have height adjustment functions, allowing precise adjustment of the overall height and level of the device to adapt to different installation environments. The installed lifting frame assembly, as the main load-bearing structure of the device, is made of high-strength materials and has good stability and rigidity. The installed first power mechanism can provide a power source, ensuring smoothness and controllability during the lifting process. The lifting mechanism can realize the Z-axis sheet flow, and since the lifting mechanism is located on the left and right sides of the device, it can be used to control the lifting action of the conveying components, thereby enabling the conveying of glass substrates between high and low workstations. The installed dust removal system includes a high-efficiency filter and a fan. The filter effectively filters dust and impurities in the air, while the fan ensures air circulation inside the device, maintaining a dust-free environment and preventing dust from contaminating the glass substrates. It features adaptability and stability. The small roller conveyor mechanism enables X-axis sheet conveying, while the lifting roller conveyor enables Y-axis sheet conveying. A second photoelectric sensor detects the position of the glass substrate, sending a signal to the control system when the substrate reaches the designated position for precise positioning control. An automatically adjusting support frame, consisting of two fixed-end support structures on one side of the lifting mechanism and two sliding-end support structures on the other, automatically adjusts the gap between the two lifting mechanisms during high-speed lifting, preventing jamming and jerking, thus achieving high-speed lifting. The support frame is made of aluminum alloy, providing a stable foundation. The fixed-end support structure, assembled from multiple support plates and fixed to one end of the support frame, provides stable support, protection, and stability to the device.

[0007] In a preferred embodiment, the lifting frame assembly serves as a load-bearing base and includes a load-bearing frame, a sealing plate, and a viewing window, etc.

[0008] By adopting the above technical solution, the installed lifting frame assembly serves as the main load-bearing structure of the device. It is made of high-strength materials, giving it good stability. The installed load-bearing frame provides a base for the installation of other components. The installed sealing plate can effectively prevent dust and debris from entering the device. The installed viewing window allows operators to easily observe the internal operation, making it convenient and stable.

[0009] In a preferred embodiment, the first power mechanism includes a motor, a speed reducer, etc.

[0010] By adopting the above technical solution, the first power mechanism consists of a motor and a reducer. The installed motor provides the power source, and the installed reducer can convert the high-speed rotation of the motor into a low-speed, high-torque output suitable for lifting operations, thereby ensuring the stability and controllability of the lifting process.

[0011] In a preferred embodiment, the tensioning structure includes a pull rod, an adjusting screw, a nut, etc.

[0012] By adopting the above technical solution, the tension of the lifting mechanisms on both sides can be adjusted through the cooperation of the pull rod and the adjusting screw, so that the lifting mechanisms on both sides can be kept parallel, thereby ensuring the smoothness and synchronization of the lifting process.

[0013] In a preferred embodiment, the lifting mechanism comprises a support structure, a slider, a ball screw, a linear guide rail, and a first photoelectric sensor.

[0014] By adopting the above technical solution, the installed support structure can be used to install and fix the cross-conveying components, possessing sufficient strength and rigidity to ensure the stability of the cross-conveying components during the lifting process. The ball screw converts the rotational motion into linear motion, allowing the slider to cooperate with the linear guide rail, thereby providing precise guidance for the lifting motion and ensuring the accuracy and repeatability of the lifting. By installing the first photoelectric sensor in a suitable position, it can be used to detect the lifting position in real time, thereby achieving precise positioning control and giving it stability and adaptability.

[0015] In a preferred embodiment, the grading mechanism includes a cylinder, a solenoid valve, a grading wheel, etc.

[0016] By adopting the above technical solution, the installed cylinder can be used to provide aligning power, the set solenoid valve can be used to control the action of the cylinder, and the installed aligning wheel can position the glass substrate to the working position by contacting it. Moreover, the aligning wheel is made of flexible material, which can effectively buffer the impact force when in contact with the glass substrate, prevent the glass substrate from being damaged by collision, and make it safe and protective.

[0017] In a preferred embodiment, the small roller conveying mechanism consists of a small roller frame, a small roller assembly, and a second power mechanism.

[0018] By adopting the above technical solution, the small roller frame is made of aluminum alloy, which is lightweight and high-strength, thus providing a stable installation platform for the small roller assembly. The installed small roller assembly consists of multiple small rollers, and the roller surface can be covered with rubber or other flexible materials to increase the friction with the glass substrate, prevent the glass substrate from sliding during transportation, and protect the surface of the glass substrate from damage. The second power mechanism can provide power for the rotation of the small roller assembly, so that the conveying speed can be adjusted as needed, making it both protective and adaptable.

[0019] In a preferred embodiment, the lifting roller conveyor consists of a lifting roller frame, a lifting roller assembly, and a third power mechanism.

[0020] By adopting the above technical solution, the installed lifting roller frame is also made of aluminum alloy, which has a sturdy structure and can withstand various loads during the lifting and conveying process. The installed lifting roller assembly has dual functions of lifting and conveying. During the lifting process, it can smoothly lift the glass substrate, and during the conveying process, it can accurately convey the glass substrate to the designated position. The third power mechanism provides power for the lifting and conveying actions respectively, ensuring the stability and controllability of the lifting and conveying process.

[0021] In a preferred embodiment, the sliding end support structure includes a support plate assembly, a sliding bearing, etc.

[0022] By adopting the above technical solution, the installed support plate assembly can be adjusted as needed. The sliding bearing is made of a low friction coefficient material, which allows the sliding end support structure to move flexibly and adapt to support requirements of different heights. Furthermore, a locking device is provided in the sliding end support structure. After the sliding end support structure is adjusted to the required position, the locking device can lock it firmly to prevent displacement during the operation of the device, thus making it adaptable and versatile.

[0023] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0024] 1. This device integrates different conveying directions such as X, Y, and Z into a single conveying unit. The device is small in size, saves production space, and reduces equipment costs. It solves the problem of high-speed lifting and lowering, thus accelerating production speed and improving production efficiency.

[0025] 2. The photoelectric sensor can accurately detect the position, thereby enabling precise positioning control of the lifting and cross-conveying components. This makes the transport and positioning of the glass substrate within the device more accurate and faster, reducing the time required for manual intervention and adjustment.

[0026] 3. The dust removal system can effectively filter dust and impurities in the air, thereby maintaining a dust-free environment inside the device, preventing dust from contaminating the glass substrate, and providing operators with a relatively clean working environment.

[0027] 4. The automatic adjustment support frame component consists of two sets of fixed-end support structures installed on one side of the lifting mechanism and two sets of sliding-end support structures installed on the other side. When the conveying component is lifting at high speed, it can automatically adjust the gap between the two lifting mechanisms to avoid defects such as jamming and jerking during the lifting process, thereby realizing the high-speed lifting function. The automatic adjustment support frame component is the key structure that enables the device to achieve high-speed lifting. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the cross-type lifting device of the present invention;

[0029] Figure 2 This is a schematic diagram of the lifting component structure in this invention;

[0030] Figure 3 This is a schematic diagram of the lifting mechanism structure in this invention;

[0031] Figure 4 This is a schematic diagram of the tensioning mechanism in this invention;

[0032] Figure 5 This is a schematic diagram of the cross-conveying component structure in this invention;

[0033] Figure 6 This is a schematic diagram of the small roller conveying assembly structure in this invention;

[0034] Figure 7 This is a side view of the lifting roller conveying assembly in this invention;

[0035] Figure 8 This is a schematic diagram of the lowering roller conveyor assembly structure in this invention;

[0036] Figure 9 This is a side view of the automatic adjustment support frame component in this invention;

[0037] Figure 10 This is a schematic diagram of the automatic adjustment support frame component in this invention.

[0038] The diagram shows the following components: 1. Lifting component; 2. Cross conveying component; 3. Automatic adjustment support frame component; 1-1. Foot cup; 1-2. Lifting frame assembly; 1-3. First power mechanism; 1-4. Lifting mechanism; 1-4-1. Support structure; 1-4-2. Slider; 1-4-3. Ball screw; 1-4-4. Linear guide rail; 1-4-5. First photoelectric sensor; 1-5. Tensioning structure; 1-6. Dust removal system; 2-1. Small roller conveying mechanism; 2-1-1. Small roller frame; 2-1-2. Small roller group; 2-1-3. Second power mechanism; 2-2. Lifting roller conveying mechanism; 2-2-1. Lifting roller frame; 2-2-2. Lifting roller group; 2-2-3. Third power mechanism; 2-3. Regularization mechanism; 2-4. Second photoelectric sensor; 3-1. Support frame; 3-2. Fixed end support structure; 3-3. Sliding end support structure. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example:

[0041] Reference Figure 1-10A high-speed, high-precision positioning cross-type lifting device for glass substrate conveying includes a lifting component 1, a cross conveying component 2, and an automatic adjustment support frame component 3. The lifting component 1 consists of a foot cup 1-1, a lifting frame assembly 1-2, a first power mechanism 1-3, a lifting mechanism 1-4, a tensioning structure 1-5, and a dust removal system 1-6. This device can be used in conjunction with other conveying equipment. The installed cross conveying component 2 enables the cross conveying of glass substrates in the X and Y directions. The installed foot cups 1-1 have a height adjustment function, which can precisely adjust the overall height and level of the device to adapt to the needs of different installation environments. The installed lifting frame assembly 1-2, as the main load-bearing structure of the device, is made of high-strength materials and has good stability and rigidity. The installed first power mechanism 1-3 can be used to provide a power source, thereby ensuring smoothness and controllability during the lifting process. The set lifting mechanism 1-4 can realize the Z-direction sheet flow, and the lifting mechanism 1-4 is located on the left and right sides of the device, so it can be used to control the lifting action of the conveying components, thereby realizing the conveying of glass substrates between high and low work positions. The installed dust removal system 1-6 includes a high-efficiency filter and a fan. The filter can effectively filter dust and impurities in the air, while the fan ensures the air circulation inside the device, maintains a dust-free environment, and prevents dust from contaminating the glass substrates, making it adaptable and stable.

[0042] Reference Figure 1-10 The cross conveying component 2 consists of a small roller conveying mechanism 2-1, a lifting roller conveyor 2-2, a grading mechanism 2-3, and a second photoelectric sensor 2-4; the automatic adjustment support frame component 3 consists of a support frame 3-1, a fixed end support structure 3-2, and a sliding end support structure 3-3. The small roller conveyor 2-1 enables X-axis glass sheet conveying, while the lifting roller conveyor 2-2 enables Y-axis glass sheet conveying. The second photoelectric sensor 2-4 detects the position of the glass substrate and sends a signal to the control system when the substrate reaches the designated position, achieving precise positioning control. The automatic adjustment support frame component 3 consists of two sets of fixed-end support structures 3-2 installed on one side of the lifting mechanism 1-4, and two sets of sliding-end support structures 3-3 installed on the other side. During high-speed lifting, the conveying component automatically adjusts the gap between the two lifting mechanisms 1-4 to avoid jamming and jerking during lifting, thus achieving high-speed lifting. The installed support frame 3-1 is made of aluminum alloy, providing a stable foundation for the entire support frame. The fixed-end support structure 3-2 is assembled from multiple support plates and fixed to one end of the support frame, providing stable support for the device and ensuring its protection and stability.

[0043] Reference Figure 2The lifting frame assembly 1-2 serves as the load-bearing foundation and includes a load-bearing frame, sealing plate, and viewing window. The installed lifting frame assembly 1-2, as the main load-bearing structure of the device, is made of high-strength materials, giving it excellent stability. The installed load-bearing frame provides the installation base for other components, the installed sealing plate effectively prevents dust and debris from entering the device, and the installed viewing window allows operators to easily observe the internal operation, ensuring both stability and convenience.

[0044] Reference Figure 2-3 The first power mechanism 1-3 includes a motor, a reducer, etc. The first power mechanism 1-3, consisting of a motor and a reducer, provides the power source, while the reducer converts the high-speed rotation of the motor into a low-speed, high-torque output suitable for lifting operations, thus ensuring the smoothness and controllability of the lifting process.

[0045] Reference Figure 2-4 The tensioning structure 1-5 includes a pull rod, an adjusting screw, and a nut. Through the cooperation of the pull rod and the adjusting screw, the tension of the lifting mechanisms on both sides can be adjusted, thus keeping the two lifting mechanisms parallel and ensuring the smoothness and synchronization of the lifting process.

[0046] Reference Figure 2-3 The lifting mechanism 1-4 consists of a support structure 1-4-1, a slider 1-4-2, a ball screw 1-4-3, a linear guide rail 1-4-4, and a first photoelectric sensor 1-4-5. The installed support structure 1-4-1 is used to install and fix the cross-conveying component 2, possessing sufficient strength and rigidity to ensure the stability of the cross-conveying component 2 during lifting. The ball screw 1-4-3 converts rotational motion into linear motion, allowing the slider 1-4-2 to work in conjunction with the linear guide rail 1-4-4, thus providing precise guidance for the lifting motion and ensuring lifting accuracy and repeatability. By installing the first photoelectric sensor 1-4-5 in a suitable position, it can be used to detect the lifting position in real time, thereby achieving precise positioning control and providing stability and adaptability.

[0047] Reference Figure 1-5 The grading mechanism 2-3 includes a cylinder, a solenoid valve, and a grading wheel. The installed cylinder provides grading power, the solenoid valve controls the cylinder's movement, and the grading wheel positions the glass substrate in the working position by contacting it. The grading wheel is made of flexible material, which effectively cushions impact when in contact with the glass substrate, preventing damage from collisions and providing safety and protection.

[0048] Reference Figure 5-6The small roller conveying mechanism 2-1 consists of a small roller frame 2-1-1, a small roller assembly 2-1-2, and a second power mechanism 2-1-3. The small roller frame 2-1-1 is made of aluminum alloy, which is lightweight and high-strength, providing a stable mounting platform for the small roller assembly 2-1-2. The small roller assembly 2-1-2 consists of multiple small rollers, and the roller surfaces can be covered with rubber or other flexible materials to increase friction with the glass substrate, preventing slippage during transport and protecting the substrate surface from damage. The second power mechanism 2-1-3 provides power for the rotation of the small roller assembly 2-1-2, allowing for adjustment of the conveying speed as needed, thus providing both protection and adaptability.

[0049] Reference Figure 5-7 The lifting roller conveyor 2-2 consists of a lifting roller frame 2-2-1, a lifting roller assembly 2-2-2, and a third power mechanism 2-2-3. The lifting roller frame 2-2-1, also made of aluminum alloy, is robust and can withstand various loads during lifting and conveying. The lifting roller assembly 2-2-2 has dual functions of lifting and conveying; it can smoothly lift the glass substrate during lifting and accurately transport it to the designated position during conveying. The third power mechanism 2-2-3 provides power for both the lifting and conveying actions, ensuring the stability and controllability of the lifting and conveying process.

[0050] Reference Figure 9-10 The sliding end support structure 3-3 includes a support plate assembly and a sliding bearing. The installed support plate assembly can be adjusted as needed. The sliding bearing uses a low-friction coefficient material, allowing the sliding end support structure 3-3 to move flexibly and adapt to different height support requirements. Furthermore, a locking device is installed in the sliding end support structure 3-3 to securely lock it in place after adjustment to the desired position, preventing displacement during operation and ensuring its adaptability and versatility.

[0051] The implementation principle of the high-speed, high-precision positioning cross-lifting device for glass substrate conveying of the present invention is as follows: When glass needs to be picked up from the low station in the X direction and conveyed to the high station in the Y direction, the cross-transfer component 2 is moved to the low-layer sheet conveying station, and the rollers of the small roller conveying mechanism 2-1 start to rotate. Glass substrates from other stations are input into the small roller conveying mechanism 2-1 through the low-layer sheet conveying port. The second photoelectric sensor 2-4 is used to precisely control the sheet conveying action, so that the glass substrate stops accurately on the small roller conveying mechanism 2-1. Subsequently, the straightening mechanism 2-3 is activated to straighten the glass substrate. The operation precisely positions the glass substrate in the designated location to ensure the accuracy of subsequent operations. The lifting mechanism 1-4 of the lifting component 1 begins to rise. During the rise, the first photoelectric sensor 1-4-5 precisely controls the wafer fabrication movement, transporting the cross conveyor component 2 along with the glass substrate on it to the high-level wafer fabrication station. After reaching the high-level wafer fabrication station, the straightening mechanism 2-3 resets. Then, the lifting roller conveyor 2-2 performs a lifting action, lifting the glass substrate onto the lifting roller conveyor 2-2. Subsequently, the rollers of the lifting roller conveyor 2-2 rotate, outputting the glass substrate through the high-level wafer fabrication port to other stations in the Y direction, completing the transport of the glass substrate from the low station in the X direction to the high station in the Y direction.

[0052] When glass needs to be picked up from the high station in the Y direction and transported to the low station in the X direction, the cross-transfer component 2 is moved to the high-level sheet forming station. The lifting roller conveyor 2-2 performs a lifting action, and its rollers rotate, feeding glass substrates from other stations onto the lifting roller conveyor 2-2 through the high-level sheet forming port. The second photoelectric sensor 2-4 controls the sheet forming action, ensuring that the glass substrate stops accurately on the lifting roller conveyor 2-2. Afterward, the lifting action of the lifting roller conveyor 2-2 is reset, and the glass substrate is placed on the high-level sheet forming port. The glass substrate is lowered onto the small roller conveyor mechanism 2-1, and the straightening mechanism 2-3 is then activated to straighten the glass substrate and position it in the designated position. The lifting mechanism 1-4 of the lifting component 1 begins to descend, and the wafer fabrication action is precisely controlled by the first photoelectric sensor 1-4-5 to transport the cross conveyor component 2 along with the glass substrate to the lower wafer fabrication station. After reaching the lower wafer fabrication station, the straightening mechanism 2-3 resets, and the rollers of the small roller conveyor mechanism 2-1 rotate, outputting the glass substrate to other stations in the X direction through the lower wafer fabrication port, completing the transport of the glass substrate from the higher station in the Y direction to the lower station in the X direction.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-speed, high-precision positioning cross-type lifting device for transporting glass substrates, comprising a lifting component (1), a cross-conveying component (2), and an automatically adjusting support frame component (3), characterized in that: The lifting component (1) consists of a foot cup (1-1), a lifting frame assembly (1-2), a first power mechanism (1-3), a lifting mechanism (1-4), a tensioning structure (1-5), and a dust removal system (1-6); The cross-conveying component (2) consists of a small roller conveying mechanism (2-1), a lifting roller conveyor (2-2), a sizing mechanism (2-3), and a second photoelectric sensor (2-4); The automatic adjustment support frame component (3) consists of a support frame (3-1), a fixed end support structure (3-2), and a sliding end support structure (3-3).

2. The high-speed, high-precision positioning cross-type lifting device for glass substrate conveying as described in claim 1, characterized in that: The lifting frame assembly (1-2) serves as the load-bearing foundation and includes a load-bearing frame, a sealing plate, and a viewing window.

3. The high-speed, high-precision positioning cross-type lifting device for glass substrate conveying as described in claim 1, characterized in that: The first power mechanism (1-3) includes a motor and a reducer.

4. The high-speed, high-precision positioning cross-type lifting device for glass substrate conveying as described in claim 1, characterized in that: The tensioning structure (1-5) includes a pull rod, an adjusting screw, and a nut.

5. The high-speed, high-precision positioning cross-type lifting device for glass substrate conveying as described in claim 1, characterized in that: The lifting mechanism (1-4) consists of a support structure (1-4-1), a slider (1-4-2), a ball screw (1-4-3), a linear guide rail (1-4-4), and a first photoelectric sensor (1-4-5).

6. The high-speed, high-precision positioning cross-type lifting device for glass substrate conveying as described in claim 1, characterized in that: The grading mechanism (2-3) includes a cylinder, a solenoid valve, and a grading wheel.

7. The high-speed, high-precision positioning cross-type lifting device for glass substrate conveying as described in claim 1, characterized in that: The small roller conveying mechanism (2-1) consists of a small roller frame (2-1-1), a small roller group (2-1-2), and a second power mechanism (2-1-3).

8. The high-speed, high-precision positioning cross-type lifting device for glass substrate conveying as described in claim 1, characterized in that: The lifting roller conveyor (2-2) consists of a lifting roller frame (2-2-1), a lifting roller assembly (2-2-2), and a third power mechanism (2-2-3).

9. A high-speed, high-precision positioning cross-type lifting device for glass substrate conveying as described in claim 1, characterized in that: The sliding end support structure (3-3) includes a support plate assembly and a sliding bearing.

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