Anti-jamming plate conveying sectional type angle adjusting mechanism

Abstract

The invention relates to the technical field of conveying devices, in particular to an anti-jamming plate conveying sectional angle adjusting mechanism which comprises a horizontal conveying section, an inclined conveying section and a transition conveying section arranged between the horizontal conveying section and the inclined conveying section. The conveying table is rotationally connected with the lifting frame through a rotating shaft, the angle driving part is used for driving the conveying table to rotate around the rotating shaft, and conveying rollers used for conveying plates are arranged on the surface of the conveying table. Through the composite angle adjusting unit formed by the lifting frame and the electric telescopic rod, the conveying table has two degrees of freedom of lifting and rotating, so that the height and angle of the tail end of the conveying table can be dynamically adjusted in a non-stop state, accurate and smooth butt joint between the conveying table and an inclined conveying section is achieved, and the conveying efficiency is improved. Therefore, the blocking risk caused by steps generated due to inaccurate butt joint is eliminated fundamentally, and the foundation of continuous flow production is laid.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conveying devices, in particular to a plate conveying segmented angle adjusting mechanism capable of preventing jamming. BACKGROUND

[0002] In the manufacturing process of display panels (such as LCD, OLED), coating and developing are crucial precision processes, which are usually completed on a highly automated coating and developing line. This production line integrates multiple functional modules, including a conveying system, a coating machine, an exposure machine, and a developing machine, etc. In order to meet process requirements, save space, or achieve specific functions, the production line layout often includes horizontal transmission sections and inclined process sections with certain angles. For example, the substrate (glass panel) may need to be smoothly fed into an inclined coating chamber to achieve uniform photoresist coating, or output from the inclined chamber after developing.

[0003] Existing angle adjusting mechanisms mostly adopt rigid linkages or single-point driven hinge designs. For example, a Chinese invention patent with the patent name of "Segmented Adjustment Pedal" and the patent number of CN114541167A, which realizes segmented adjustment and locking of the main arm angle through an angle control unit. However, such mechanisms focus on the safe fixation of static positions and cannot meet the demand for dynamic angle transformation in the continuous conveying state of the plate in the production line.

[0004] Another patent document, such as CN116060803A, discloses an angle adjusting mechanism that realizes angle adjustment through the switching of a fastening assembly between the locked position and the adjustment position. However, this mechanism needs to be manually switched to the adjustment mode before adjustment and needs to be relocked after adjustment. The entire process cannot be continuously performed online, which will cause interruptions in the production process and low efficiency.

[0005] Due to the lack of effective flexibility buffering and multi-point coordination capabilities, during angle switching, the adjustment process is rough and slow to respond, which is easy to cause rigid impact on the workpiece. Moreover, it cannot adaptively compensate for the inertial sliding and position deviation of the workpiece in the dynamic process. This further leads to the risk of damage to display panels, especially large-size and ultra-thin glass substrates, due to stress concentration during the adjustment process. At the same time, the stability of conveying and the positioning accuracy are difficult to guarantee, which ultimately causes the decline of product yield, the reduction of equipment reliability, and the damage of overall production efficiency.

[0006] Therefore, a plate conveying segmented angle adjusting mechanism capable of preventing jamming is proposed to solve the above-mentioned problems. SUMMARY

[0007] Technical problems solved

[0008] In view of the above-mentioned defects of the prior art, the present application provides a plate conveying segmented angle adjusting mechanism capable of preventing jamming, which can solve the technical problems of impact, jamming and damage caused by inertia sliding of the plate during inclined conveying in the prior art.

[0009] Technical scheme

[0010] To achieve the above-mentioned purposes, the present application is implemented by the following technical scheme:

[0011] The present application provides a plate conveying segmented angle adjusting mechanism capable of preventing jamming, which comprises a horizontal conveying section and an inclined conveying section, and a transition conveying section arranged between the two sections, wherein the transition conveying section comprises a support frame, a lifting frame mounted on the support frame, a conveying table rotatably connected to the lifting frame through a rotating shaft, and an angle driving member for driving the conveying table to rotate around the rotating shaft, and the surface of the conveying table is provided with conveying rollers for conveying the plate.

[0012] Limiting mechanisms are arranged on both sides of the conveying table along its conveying direction, wherein the limiting mechanisms comprise side stop plates capable of sliding relative to the surface of the conveying table and having a tendency to move towards the center of the conveying table, and are used for limiting the two sides of the plate during plate conveying.

[0013] A damping buffer mechanism is arranged below the conveying table, wherein the damping buffer mechanism comprises a hydraulic linkage pipeline filled with hydraulic medium, first and second piston rods respectively connected to the side stop plates on both sides and extending into the hydraulic linkage pipeline, and a throttling hole arranged on the hydraulic linkage pipeline for generating damping force.

[0014] When the conveying table is inclined at a set angle, the plate has a tendency to slide to the low side under the action of gravity and press the side stop plate on the low side, thereby driving the corresponding piston rod to compress the hydraulic medium in the hydraulic linkage pipeline, and the hydraulic medium flows through the throttling hole to generate damping force to buffer the impact of the plate sliding downward.

[0015] Further, the hydraulic linkage pipeline is a three-way pipe, the inside of which is divided into a lower chamber and an upper chamber, the second piston rod is slidingly arranged in the lower chamber, the first piston rod is slidingly arranged in the upper chamber, and the throttling hole is arranged between the lower chamber and the upper chamber.

[0016] Further, the damping buffer mechanism further comprises a one-way valve arranged in the three-way pipe and used for communicating the lower chamber and the upper chamber, wherein the one-way valve is configured to allow the hydraulic medium to flow from the upper chamber to the lower chamber.

[0017] Further, the side stop plate is slidingly connected to a sliding groove arranged on the surface of the conveying table through a sliding plate connected to the lower end of the side stop plate, and the sliding groove is provided with a first spring providing elastic force tending to the center of the conveying table.

[0018] Further, the side baffle is provided with horizontal guide plates on one side of the horizontal conveying section, and the horizontal guide plates on both sides are spread in a spread shape.

[0019] Further, a plurality of horizontal guide wheels are rotationally connected to the side surface of the side baffle.

[0020] Further, the side baffle is L-shaped, and a slide rod is elastically connected above the horizontal section of the side baffle through a second spring, and a lifting platform is arranged at the lower end of the slide rod, and a limiting guide wheel for pressing the plate piece from above is rotationally connected to the lifting platform.

[0021] Further, the lifting platform is provided with a vertical guide plate on one side of the horizontal conveying section, and the inlet end of the vertical guide plate extends upwardly.

[0022] Further, the angle driving piece is an electric telescopic rod, the cylinder body of the electric telescopic rod is hinged to the lifting frame, and the telescopic rod end is hinged to the connecting bump arranged at the bottom of the conveying platform.

[0023] Further, a hydraulic elevator for driving the lifting frame to ascend and descend along the support frame is further included.

[0024] Beneficial effects

[0025] Compared with the prior art, the technical scheme provided by the application has the following beneficial effects:

[0026] The composite angle adjusting unit composed of the lifting frame and the electric telescopic rod enables the conveying platform to have two degrees of freedom of lifting and rotating, so that the height and angle of the end of the conveying platform can be dynamically adjusted without stopping, and the conveying platform is accurately and smoothly connected with the inclined conveying section, which fundamentally eliminates the risk of jamming caused by steps due to inaccurate connection, and lays the foundation for continuous flow production.

[0027] When the plate piece enters the conveying platform in the inclined state, the key adaptive limiting and buffering mechanism is immediately started: the inertial force of the plate piece sliding downward extrudes the lower baffle on the low side, and pushes the second piston rod to compress the hydraulic oil in the lower chamber of the three-way pipe, and the oil generates a large damping force when flowing through the throttle hole, and the kinetic energy of the plate piece is converted into heat energy and consumed, so that the soft stop of smooth deceleration is realized, and the rigid impact of the plate piece on the baffle and the possible damage are effectively prevented; and the lower baffle on the low side gives the plate piece an upward supporting force to compensate for the downward deviation of the plate piece when buffering the impact of the plate piece under the action of the hydraulic counterforce.

[0028] At the same time, according to the Pascal principle, the increased pressure of the lower chamber is transmitted to the upper chamber through the hydraulic pipeline, pushing the first piston rod to extend, driving the upper baffle of the high side to move upward, forming a push and return clamping state with the low side baffle, making the limiting guide wheel on it press the upper surface of the plate, overcoming the sliding inertia of the plate together, and stabilizing it on the conveying center line, finally ensuring that the plate enters the inclined conveying section in a stable posture and accurate position, completely solving the problems of jam, deviation, overturning and damage caused by inertia sliding in traditional mechanisms. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0030] Figure 1 The installation position diagram of the transition conveying section in the embodiment of the present application;

[0031] Figure 2 The angle adjusting unit structure diagram in the transition conveying section in the embodiment of the present application;

[0032] Figure 3 The angle adjusting unit structure diagram in the transition conveying section in the embodiment of the present application;

[0033] Figure 4 The structure composition diagram of the limiting mechanism in the embodiment of the present application;

[0034] Figure 5 The structure composition diagram of the limiting mechanism in the embodiment of the present application;

[0035] Figure 6 The top view diagram of the structure of the limiting mechanism in the embodiment of the present application;

[0036] Figure 7 The side view diagram of the structure of the limiting mechanism in the embodiment of the present application;

[0037] Figure 8 The structure diagram of the damping buffer mechanism in the embodiment of the present application;

[0038] Figure 9 The side view structure diagram of the damping buffer mechanism in the embodiment of the present application.

[0039] The labels in the figure respectively represent: 1, horizontal conveying section; 2, inclined conveying section; 3, transition conveying section; 4, support frame; 5, hydraulic elevator; 6, lifting frame; 7, rotating shaft; 8, conveying table; 9, electric telescopic rod; 10, connecting protrusion; 11, side baffle; 111, lower baffle; 112, upper baffle; 12, chute; 13, sliding plate; 14, first spring; 15, horizontal flow guide plate; 16, horizontal guide wheel; 17, second spring; 18, sliding rod; 19, lifting table; 20, limit guide wheel; 21, vertical flow guide plate; 22, limit groove; 23, roller; 24, three-way pipe; 25, first piston rod; 26, second piston rod; 27, conveying roller; 28, lower chamber; 29, upper chamber; 30, throttling hole; 31, one-way valve. DETAILED DESCRIPTION

[0040] The application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the application, and not to limit the application. In addition, it should be noted that, for the convenience of description, only the parts related to the application are shown in the drawings, not all the structures.

[0041] In the description of the application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "above" and "on" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "under" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0043] In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like, orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0044] The present application will be further described below in conjunction with the embodiments.

[0045] Embodiment:

[0046] Please refer to the accompanying Figures 1-9 The present application provides a non-jamming plate conveying segmented angle adjusting mechanism, which is composed of a horizontal conveying section 1, an inclined conveying section 2 and a transition conveying section 3. The horizontal conveying section 1, the transition conveying section 3 and the inclined conveying section 2 are linearly distributed in sequence, and the transition conveying section 3 is located between the horizontal conveying section 1 and the inclined conveying section 2, which is used to smoothly transition the plate conveyed horizontally on the horizontal conveying section 1 to the inclined conveying section 2, so as to adjust the conveying posture and angle of the plate. In the display panel coating and developing line, the horizontal conveying section 1 usually corresponds to a clean track or a loading port module, which is responsible for the horizontal transmission of the substrate; the inclined conveying section 2 specifically corresponds to the inlet section of the inclined coating unit or the developing chamber, and the substrate needs to enter at a specific inclination to realize uniform coating of photoresist or precise spraying of chemical liquid; the core function of the transition conveying section 3 is to realize the dynamic, smooth and impact-free transition of the substrate from the horizontal state to the process inclination. The substrate is a large and ultra-thin glass panel, which is extremely sensitive to vibration, impact and surface stress during conveying, and any slight jamming or positional deviation may cause uneven photoresist coating or substrate edge cracking, resulting in significant loss.

[0047] The transition conveying section 3 includes an angle adjusting unit, a conveying table 8 mounted on the angle adjusting unit, and a limiting mechanism arranged on both sides of the conveying table 8.

[0048] The adjusting unit is used to change the inclination angle of the conveying table 8, so that after the horizontal conveying section 1 horizontally conveys the plate to the conveying table 8, the inclination angle of the conveying table 8 is changed to be the same as that of the transition conveying section 3, and then the plate can be smoothly conveyed to the transition conveying section 3 at a specific inclination angle through the conveying table 8, realizing segmented angle adjusting conveying of the plate.

[0049] Compared with the traditional plate conveying to the joint of horizontal section and inclined section, the whole production line needs to stop, and then the joint angle is slowly adjusted by mechanical mechanism, so that the plate can start to enter the inclined section. This way is low in efficiency and cannot realize the close connection of plate conveying. In the scheme, the angle and height of the plate can be adjusted synchronously during the conveying process in the transition conveying section 3 after the plate enters the transition conveying section 3 from the horizontal conveying section 1. When the plate reaches the inclined conveying section 2, the plate is in a ready state and can flow into the inclined conveying section 2 without stopping and smoothly, realizing seamless connection and continuous flow production in a true sense, which is very important for modern high-speed production line.

[0050] Specifically, the angle adjusting unit includes a support frame 4 mounted on the base and a hydraulic lift 5. The lifting frame 6 is slidingly mounted on the support frame 4, and the conveying table 8 is rotatably connected to the lifting frame 6 through the rotating shaft 7. The hydraulic lift 5 is used to drive the lifting frame 6 to rise and fall on the support frame 4, so as to adjust the height position of the conveying table 8.

[0051] Meanwhile, the side of the lifting frame 6 away from the rotating shaft 7 is connected with an electric telescopic rod 9, and the front end of the telescopic rod of the electric telescopic rod 9 is rotatably connected to the connecting lug 10 on the lower surface of the conveying table 8. The surface of the conveying table 8 is provided with evenly distributed conveying rollers 27. When the plate is conveyed to the surface of the conveying table 8 and supported by the conveying rollers 27, the electric telescopic rod 9 is started to operate.

[0052] The telescopic rod of the electric telescopic rod 9 is extended upward and serves as a fulcrum through the connecting lug 10 to push the conveying table 8 to rotate on the lifting frame 6 with the rotating shaft 7 as the center, so as to realize the angle adjustment of the conveying table 8 and the plate conveyed on the surface. Meanwhile, the support frame 4 is controlled to slide on the lifting frame 6 by the hydraulic lift 5, so that the conveying table 8 can be adjusted in height while being adjusted in angle, and then the conveying table 8 can be relatively aligned with the inclined conveying section 2, so as to stably convey the plate on the surface of the conveying table 8 to the inclined conveying section 2. The coordinated adjustment of the height and the angle ensures that the outlet of the conveying table 8 can be accurately connected with the inlet of the front inclined coating unit or developing chamber in sub-millimeter level in space coordinates or inclined angle. This is very important for the display panel manufacturing, because it forms an absolutely smooth, continuous and undisturbed transition slope, which fundamentally eliminates the risk of substrate vibration, jamming or photoresist coating scratch caused by the step or gap at the joint, and lays a solid foundation for obtaining uniform film coating.

[0053] By constructing a movable mechanism with two degrees of freedom, the conveying table 8 can not only change the inclination angle, but also adjust the overall height. The ultimate goal is to ensure that the end of the conveying table 8 can be perfectly aligned with the front inclined conveying section 2 in terms of spatial position and inclination angle, forming a smooth, continuous, and uninterrupted transition slope, thereby solving the fundamental defect of traditional mechanisms that only have single rotary motion, resulting in steps or gaps at the joint.

[0054] More specifically, the limiting mechanism includes two sets of side plates 11 installed on the surfaces of the conveying table 8. When the board is conveyed to the surface of the conveying table 8 and is being conveyed on the conveying table 8, the two side plates 11 on both sides can effectively prevent the board from shifting position. At the same time, when the conveying table 8 is adjusted in angle, the side plates 11 can prevent the board from sliding down due to gravity.

[0055] The difference is that the surface of the conveying table 8 is provided with a sliding groove 12 parallel to the conveying roller 27, the lower end surface of the side plate 11 is connected with a sliding plate 13, the sliding plate 13 is slidingly installed in the sliding groove 12, and the sliding groove 12 is also connected with a first spring 14, the other end of the first spring 14 is connected to the sliding plate 13.

[0056] When the sliding plate 13 is not affected by external force, the first spring 14 always has a force to pull the sliding plate 13 inward to the conveying table 8, and thus the two sets of side plates 11 always have a tendency to move towards the center of the conveying table 8. When the board is conveyed to the surface of the conveying table 8, the board is located between the two sets of side plates 11.

[0057] By limiting the two sides of the board with the two sets of side plates 11, the deviation of the board during conveying can be effectively prevented. In this state, it can be ensured that the board advances in the center of the preset path, prevents deviation caused by small resistance differences, and ensures that the board can accurately enter the next work section.

[0058] Meanwhile, the two sets of side plates 11 on the side facing the horizontal conveying section 1 are connected with horizontal guide plates 15, and the two sets of horizontal guide plates 15 are spread in a figure-eight shape.

[0059] When the board is conveyed from the horizontal conveying section 1 to the conveying table 8, the farthest end distance between the two sets of horizontal guide plates 15 is greater than the width of the board, and thus the board will be inserted between the two sets of horizontal guide plates 15 during conveying, and as the insertion depth of the board increases, the board will push the two sets of side plates 11 to slide outward on the conveying table 8, and thus the sliding plate 13 will overcome the pulling force of the first spring 14 in the sliding groove 12, until the board can pass between the two sets of side plates 11.

[0060] Since the distance between the two groups of side baffles 11 is variable, in cooperation with the eight-shaped horizontal guide plate 15 at the entrance, when different width plate enters, it can gently push the two groups of side baffles 11, so that the mechanism can automatically adapt to the plate within a certain size range, and enhance the flexibility of the production line. At the same time, the first spring 14 always provides an inward pulling force, so that the side baffles 11 can be gently attached to the two sides of the plate, which not only plays a limiting role, but also avoids the surface pressure or jam caused by the rigid clamping.

[0061] The side surface of the side baffle 11 is provided with a slot, and the horizontal guide wheel 16 which is linearly distributed at equal distances is rotatably connected in the slot. When the plate is inserted between the two groups of side baffles 11, it will touch the surface of the horizontal guide wheel 16. By converting the sliding friction between the base plate and the limiting mechanism into rolling friction, not only the conveying resistance is greatly reduced, but also the scratches or particles on the back or edge of the base plate caused by friction are effectively avoided. These scratches and particles will become fatal defect sources in the subsequent precision optical process.

[0062] By converting the sliding friction of the plate between the two groups of side baffles 11 into rolling friction through the horizontal guide wheel 16, the resistance of the plate advancing is very small, which avoids the jamming or shaking caused by excessive friction, and ensures the smooth and continuous conveying process. It also reduces the driving force required by the conveying roller 27, thereby reducing the energy consumption of the device and making the operation more stable.

[0063] The side baffle 11 is arranged in an L shape, and the horizontal section surface of the side baffle 11 is also slidably connected with the slide rod 18 through the second spring 17. The lower end of the slide rod 18 is connected with the lifting platform 19. When the slide rod 18 is not affected by external force, it always has a sliding force to the surface of the conveying table 8 under the action of the elastic force of the second spring 17.

[0064] The lower end of the slide rod 18 is connected with the lifting platform 19, and the side surface of the lifting platform 19 facing the horizontal conveying section 1 is connected with the vertical guide plate 21. The vertical guide plate 21 is inclined from bottom to top. When the plate is conveyed from the horizontal conveying section 1 to the conveying table 8, the distance between the outermost end of the vertical guide plate 21 and the conveying table 8 is greater than the thickness of the plate.

[0065] Further, during the conveying process of the plate, the plate will be inserted between the vertical guide plate 21 and the conveying table 8, and as the insertion depth of the plate increases, the plate will push the vertical guide plate 21 to slide upward on the conveying table 8, and then the slide rod 18 will overcome the elastic force of the second spring 17, until the plate can pass between the vertical guide plate 21 and the conveying table 8.

[0066] The lifting platform 19 is rotatably connected with the limiting guide wheels 20 which are linearly distributed at equal distances. When the board is inserted between the vertical guide plate 21 and the conveying platform 8, the board will be in contact with the surface of the limiting guide wheels 20. The sliding friction of the board between the vertical guide plate 21 and the conveying platform 8 is converted into rolling friction by the limiting guide wheels 20. The board above the limiting guide wheels 20 can be prevented from overturning during the inclination of the conveying platform 8.

[0067] The lower end surface of the side baffle 11 is rotatably connected with the roller 23 which is inserted in the limiting groove 22 provided on the surface of the conveying platform 8. The limiting groove 22 is a rigid track processed on the surface of the conveying platform 8, and the roller 23 is embedded in the groove, so that the movement of the roller 23 is strictly limited in the length direction of the groove. It is ensured that the movement track of the side baffle 11 is a straight line during sliding, and the side baffle 11 cannot be deviated or twisted in the front-rear direction, so that the two side baffles are always parallel to the board.

[0068] It is worth noting that the side baffle 11 is divided into a lower baffle 111 and an upper baffle 112. The lower baffle 111 is installed on one side of the conveying platform 8 close to the rotating shaft 7, and the upper baffle 112 is installed on the other side of the conveying platform 8. When the angle adjusting unit controls the inclination adjustment of the conveying platform 8, the side baffle 11 is located below the inclined conveying platform 8, and the sliding groove 12 is located above the inclined conveying platform 8.

[0069] During the inclination angle change of the conveying platform 8, the board will slide along the slope direction due to gravity and violently impact the side baffle 11 on the side. The impact can cause damage to the corners of the board, and cause the board to rebound and vibrate, resulting in misalignment of the board with the subsequent conveying equipment at the entrance of the inclined conveying section 2, and causing jamming or deviation. The damping buffer mechanism is also installed below the conveying platform 8, which is used to consume the impact energy of the board sliding downward by hydraulic linkage, and actively press the board to achieve smooth transition.

[0070] The damping buffer mechanism includes a three-way pipe 24 connected below the conveying platform 8, and the three openings of the three-way pipe 24 are all directed to the side of the upper baffle 112.

[0071] The sliding plate 13 connected below the upper baffle 112 is provided with a first piston rod 25 which is slidingly installed in the three-way pipe 24. The inside of the three-way pipe 24 is also connected with a conveying roller 27 which divides the three-way pipe 24 into a lower chamber 28 and an upper chamber 29. The first piston rod 25 is inserted in the upper chamber 29, and the second piston rod 26 is inserted in the lower chamber 28.

[0072] The conveying roller 27 is also provided with a throttle hole 30 which communicates the lower chamber 28 and the upper chamber 29, and a one-way valve 31 which allows the hydraulic medium in the three-way pipe 24 to only enter the lower chamber 28 from the upper chamber 29 in one direction.

[0073] When the conveying table 8 is tilted, the board has a tendency to slide downward due to gravity, pressing the lower baffle 111 on the low side. At this time, the inertial kinetic energy of the downward sliding of the board is converted into impact force on the lower baffle 111, and without buffering, it is easy to cause damage to the corners of the board.

[0074] The lower baffle 111 is pressed, pushing the second piston rod 26 connected thereto, and compressing the hydraulic oil in the lower chamber 28 in the three-way pipe 24. The hydraulic oil compressed in the lower chamber 28 has a sudden rise in pressure, slowly flowing into the upper chamber 29 through the only throttle hole 30.

[0075] Due to the small aperture of the throttle hole 30, a huge resistance is generated when the oil flows through. In turn, it acts on the board that pushes the lower baffle 111, continuously consuming the downward sliding energy of the board, so that its speed is rapidly reduced, achieving smooth deceleration instead of sudden impact stop.

[0076] At the same time, when the board slides downward to press the lower baffle 111, the upper baffle 112 will slide downward under the pulling force of the first spring 14, so as to push the first piston rod 25 to insert into the upper chamber 29 in the three-way pipe 24, and press the hydraulic oil in the upper chamber 29.

[0077] And when the hydraulic oil in the upper chamber 29 is pressed, it returns to the lower chamber 28 through the one-way valve 31. The movement of the upper baffle, on the one hand, presses the upper surface of the board through the roller 23 to prevent the board from overturning; on the other hand, the oil pressure in the upper chamber 29 is raised, supplemented to the lower chamber 28 through the one-way valve 31, maintaining the pressure balance of the system, ensuring the stability of the board during the buffering process.

[0078] And as the pressure in the lower chamber 28 increases, it will push the second piston rod 26 to slide out of the three-way pipe 24 and act on the surface of the board, sliding the board upward along the surface of the conveying table 8 to compensate for the deviation of the board during the tilting process, ensuring that the board can enter the subsequent tilting conveying section 2 with more accurate posture and position, effectively preventing jamming or edge scratching caused by inaccurate docking.

[0079] The damping and buffering mechanism realizes intelligent inhibition and energy dissipation of the inertial sliding of high-value display panel substrates through pure mechanical and hydraulic linkage. The final effect is to ensure that each substrate is in a controlled, stable, and stress-free ideal conveying state before entering the key coating or developing process section. This not only completely solves the risk of broken pieces and jamming, but also eliminates vibration and impact in the dynamic process, providing a core guarantee for obtaining high uniformity and defect-free coating quality, directly improving the overall production yield and operation efficiency of the coating and developing line.

[0080] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A segmented angle adjustment mechanism for anti-jamming plate conveying, comprising a horizontal conveying section (1) and an inclined conveying section (2) and a transition conveying section (3) disposed between the two, wherein the transition conveying section (3) comprises a support frame (4), a lifting frame (6) mounted on the support frame (4), and a conveying table (8) rotatably connected to the lifting frame (6) via a rotating shaft (7), wherein the surface of the conveying table (8) is provided with conveying rollers (27) for conveying plates, characterized in that: The conveying table (8) is provided with limiting mechanisms on both sides along its conveying direction. The limiting mechanism includes a side baffle (11) that can slide relative to the surface of the conveying table (8) and has a tendency toward the center of the conveying table (8), which is used to limit the two sides of the plate during the conveying process. A damping buffer mechanism is provided below the conveying platform (8). The damping buffer mechanism includes a hydraulic linkage pipeline filled with hydraulic medium, a first piston rod (25) and a second piston rod (26) respectively connected to the side baffles (11) on both sides and extending into the hydraulic linkage pipeline, and a throttling orifice (30) provided on the hydraulic linkage pipeline for generating damping force. When the conveyor table (8) is tilted at a set angle, the plate tends to slide to the lower side under the action of gravity and squeezes the side baffle (11) on that side, thereby driving the corresponding piston rod to compress the hydraulic medium in the hydraulic linkage pipeline. The hydraulic medium flows through the throttle hole (30) to generate damping force to buffer the downward impact of the plate.

2. The segmented angle adjustment mechanism for anti-jamming plate conveying according to claim 1, characterized in that, The hydraulic linkage pipeline is a three-way pipe (24), which is internally divided into a lower chamber (28) and an upper chamber (29). The second piston rod (26) is slidably disposed in the lower chamber (28), and the first piston rod (25) is slidably disposed in the upper chamber (29). The throttling orifice (30) is disposed between the lower chamber (28) and the upper chamber (29).

3. The segmented angle adjustment mechanism for anti-jamming plate conveying according to claim 2, characterized in that, The damping buffer mechanism further includes a one-way valve (31) disposed in the three-way pipe (24) and used to connect the lower chamber (28) and the upper chamber (29), the one-way valve (31) being configured to allow hydraulic medium to flow from the upper chamber (29) to the lower chamber (28).

4. The segmented angle adjustment mechanism for anti-jamming plate conveying according to claim 1, characterized in that, The side baffle (11) is slidably connected to the slide groove (12) on the surface of the conveyor table (8) via the slide plate (13) connected at the lower end. A first spring (14) is provided in the slide groove (12) to provide an elastic force that tends towards the center of the conveyor table (8).

5. The segmented angle adjustment mechanism for anti-jamming plate conveying according to claim 4, characterized in that, The side baffle (11) is provided with a horizontal guide plate (15) on the side facing the horizontal conveying section (1), and the horizontal guide plates (15) on both sides are spread out in a figure-eight shape.

6. The segmented angle adjustment mechanism for anti-jamming plate conveying according to claim 5, characterized in that, The side of the side baffle (11) is rotatably connected to a plurality of horizontal guide wheels (16).

7. The segmented angle adjustment mechanism for anti-jamming plate conveying according to claim 4, characterized in that, The side baffle (11) is L-shaped, and a slide rod (18) is elastically connected above its horizontal section by a second spring (17). A lifting platform (19) is provided at the lower end of the slide rod (18), and a limiting guide wheel (20) for pressing the plate from above is rotatably connected to the lifting platform (19).

8. The segmented angle adjustment mechanism for anti-jamming plate conveying according to claim 7, characterized in that, The lifting platform (19) is provided with a vertical guide plate (21) on the side facing the horizontal conveying section (1), and the inlet end of the vertical guide plate (21) extends upward at an angle.

9. The segmented angle adjustment mechanism for anti-jamming plate conveying according to claim 1, characterized in that, The transition conveying section (3) includes an angle drive for driving the conveying table (8) to rotate around the rotating shaft (7). The angle drive is an electric telescopic rod (9). The cylinder of the electric telescopic rod (9) is hinged to the lifting frame (6), and the end of its telescopic rod is hinged to the connecting protrusion (10) provided at the bottom of the conveying table (8).

10. The segmented angle adjustment mechanism for anti-jamming plate conveying according to claim 1, characterized in that, It also includes a hydraulic lift (5) for driving the lifting frame (6) to move up and down along the support frame (4).

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