Flexible conveying structure for ultra-thin liquid crystal glass substrate

Abstract

The utility model discloses a flexible conveying structure for ultrathin liquid crystal glass substrate belongs to liquid crystal display manufacturing technical field, and its technical scheme main points include support base, the top of support base is provided with double roll group conveying mechanism, both sides of double roll group conveying mechanism all movably connect with elastic self -adaptation subassembly, can realize the double -sided elastic contact of base plate through the elastic soft cover transmission roll group of upper and lower symmetry arrangement, both disperses contact stress to evade breakage problem such as breakage, surface scratch, and through double -sided support, the bending sag and transmission jitter caused by the rigidity deficiency of ultrathin base plate are restrained, and simultaneously with the adjustable roll group spacing of servo drive's adaptation different thickness base plate conveying demand, and the compound telescopic structure can buffer the vibration impact in conveying process, effectively solved the problem that the traditional single group rigid roll shaft stress concentration, single -sided support deformation, interval fixed and vibration interference result in the low conveying yield, the follow -up process precision is affected.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display manufacturing technology, and in particular to a flexible conveying structure for ultra-thin liquid crystal glass substrates. Background Technology

[0002] The display industry is upgrading towards ultra-thin, large-size and flexible technologies such as TFT-LCD and OLED, which have stringent requirements for glass substrate transportation. Traditional roller and rigid clamping transportation can easily cause substrate scratches, breakage and slippage, and the positioning accuracy is low, affecting the efficiency of subsequent processing. To solve these pain points and adapt to multiple substrate specifications and complex processes, flexible transportation structures have emerged.

[0003] In the existing technology, the conveying process of ultra-thin liquid crystal glass substrates mostly adopts a single set of horizontal rigid roller conveying structure. The roller and the substrate are in rigid point contact or line contact, which easily leads to contact stress concentration and causes damage problems such as substrate chipping and surface scratches. At the same time, single-sided support makes the ultra-thin substrate prone to bending and sagging due to insufficient rigidity, as well as transmission vibration. Furthermore, the traditional roller group and the base are rigidly connected, which cannot buffer the vibration and impact during the conveying process. The fixed spacing is also difficult to adapt to the conveying requirements of ultra-thin substrates of different thicknesses, which seriously affects the substrate conveying yield and the accuracy of subsequent processes.

[0004] To address this, a flexible transport structure for ultra-thin liquid crystal glass substrates is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a flexible transport structure for ultra-thin liquid crystal glass substrates, which can solve the problems of stress concentration and breakage, as well as deformation and unstable transmission.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a flexible conveying structure for ultra-thin liquid crystal glass substrates, including a support base, a double-roller conveying mechanism on the top of the support base, elastic adaptive components movably connected to both sides of the double-roller conveying mechanism, the double-roller conveying mechanism including two roller transmission frames, both roller transmission frames being disposed on the top of the support base and arranged symmetrically from top to bottom, multiple transmission rollers being rotatably connected to the inner side of the roller transmission frames, and the multiple transmission rollers being arranged horizontally at equal intervals, connecting plates being disposed on opposite sides of the roller transmission frames, the support base being fixedly connected to the bottom of two adjacent connecting plates, and adjusting components movably connected to opposite sides of the two connecting plates.

[0007] Preferably, the elastic adaptive component includes multiple connecting posts, and the multiple connecting posts are respectively fixedly connected to the front and rear sides of the inner side of each connecting plate.

[0008] Preferably, each of the plurality of connecting columns is slidably connected to a sliding block on its outer side, and the other end of the sliding block is fixedly connected to the outer wall of the adjacent side roller conveyor frame.

[0009] Preferably, two high-strength springs are sleeved on the outer side of the connecting column, and the two high-strength springs are symmetrically arranged vertically with the sliding block as the center.

[0010] Preferably, the adjustment component includes two sets of support plates, and the two sets of support plates are respectively fixedly connected to both sides of the bottom of the support base. A hollow column is fixedly connected to the top of the support plate, and a linkage column is slidably connected to the inner side of the hollow column. A driven plate is fixedly connected to the top of the linkage column, and the two sets of driven plates are respectively fixedly connected to both sides of the connecting plate away from the support base.

[0011] Preferably, a servo motor is fixedly connected to the outer side of the hollow column, a drive gear is fixedly connected to the output end of the servo motor, a toothed plate is meshed with the side of the drive gear near the hollow column, and the toothed plate is fixedly connected to the side of the linkage column near the drive gear.

[0012] Preferably, an elastic soft sleeve is fixedly connected to the outer side of the transfer roller.

[0013] Preferably, a PLC control module is fixedly connected to the top of the driven plate.

[0014] Preferably, an elastic protective sleeve is fixedly connected to the outer side of the high-strength spring.

[0015] Preferably, a speed control box is fixedly connected to the outside of the output end of the servo motor.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This application, by setting up a double-roller conveying mechanism, can achieve double-sided elastic contact of the substrate through the symmetrically arranged upper and lower elastic soft sleeve conveying rollers. This not only disperses the contact stress to avoid damage problems such as edge chipping and surface scratches, but also suppresses the bending and sagging of the ultra-thin substrate and the conveying jitter caused by insufficient rigidity through double-sided support. At the same time, the adjustable roller spacing driven by servo can adapt to the conveying needs of substrates of different thicknesses, and the composite telescopic structure can buffer the vibration and impact during the conveying process. This effectively solves the problems of low conveying yield and subsequent process accuracy caused by stress concentration of traditional single rigid roller shafts, deformation of single-sided support, fixed spacing and vibration interference.

[0018] 2. By setting up an elastic adaptive component, this application enables the transmission roller to have elastic buffering and adjustment capabilities through a sliding connection structure with a high-strength spring between the roller transmission frame and the integrated connecting plate. When a risk of hard contact occurs due to unilateral stress concentration or sudden changes in transmission rate during substrate transmission, the roller transmission frame can adaptively lift, sink, and quickly reset to buffer instantaneous impacts and balance contact pressure. This effectively solves the problem of potential substrate damage caused by rigid contact under fixed connection of upper and lower synchronous transmission rollers, further ensuring the safety and stability of ultra-thin liquid crystal glass substrate transmission. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the flexible conveying structure for ultra-thin liquid crystal glass substrates according to this utility model.

[0020] Figure 2 This is an overall structural diagram of the flexible conveying structure for ultra-thin liquid crystal glass substrates according to the present invention.

[0021] Figure 3 This is an overall structural diagram of the double-roller conveyor mechanism of this utility model;

[0022] Figure 4 This is an overall structural diagram of the adjustment component of this utility model;

[0023] Figure 5 This is an overall structural diagram of the elastic adaptive component of this utility model.

[0024] In the diagram, 1. Support base; 2. Double roller conveyor mechanism; 21. Roller transmission frame; 22. Transmission roller; 23. Connecting plate; 24. Adjustment component; 2401. Support plate; 2402. Hollow column; 2403. Linkage column; 2404. Driven plate; 2405. Servo motor; 2406. Drive gear; 2407. Tooth plate; 3. Elastic adaptive component; 31. Connecting column; 32. Sliding block; 33. High-strength spring; 4. Elastic soft sleeve; 5. PLC control module; 6. Elastic protective sleeve; 7. Speed ​​control box. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 The present invention provides the following technical solution:

[0027] A flexible conveying structure for ultra-thin liquid crystal glass substrates includes a support base 1. A double roller conveying mechanism 2 is provided on the top of the support base 1. Elastic adaptive components 3 are movably connected to both sides of the double roller conveying mechanism 2. The double roller conveying mechanism 2 includes two roller transfer frames 21. The two roller transfer frames 21 are both provided on the top of the support base 1 and are arranged symmetrically from top to bottom. Multiple transfer rollers 22 are rotatably connected to the inner side of the roller transfer frames 21 and are arranged horizontally at equal intervals. A connecting plate 23 is provided on the opposite side of the roller transfer frames 21. The support base 1 is fixedly connected to the bottom of two adjacent connecting plates 23. An adjustment component 24 is movably connected to the opposite side of the two connecting plates 23.

[0028] In this embodiment: Instead of using a single set of horizontal rigid rollers for the conveying structure, a roller conveying structure is used, consisting of two sets of symmetrically arranged roller conveying frames 21 with multiple conveying rollers 22 arranged horizontally at equal intervals and covered with elastic soft sleeves 4. The connecting plate 23 on the outside of the bottom roller conveying frame 21 is fixed to the support base 1 to guide the horizontal conveying of materials. The top roller conveying frame 21 is connected to the bottom fixed roller conveying frame 21 through the adjustment component 24. The distance between the two can be adjusted according to the thickness of the substrate, so as to achieve the conveying effect of the upper and lower soft conveying rollers 22 contacting the substrate at the same time, avoiding edge chipping and scratches, suppressing bending deformation, adapting to substrates of different thicknesses and ensuring the smoothness of the conveying and the conveying yield.

[0029] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, the elastic adaptive component 3 includes multiple connecting posts 31, and the multiple connecting posts 31 are respectively fixedly connected to the front and rear sides of the inner side of each connecting plate 23.

[0030] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, multiple connecting columns 31 are slidably connected to the outer side of sliding blocks 32, and the other end of the sliding blocks 32 is fixedly connected to the outer wall of the adjacent side roller conveyor frame 21.

[0031] Specifically, such as Figure 1 , Figure 2 , Figure 5 As shown, two high-strength springs 33 are sleeved on the outer side of the connecting column 31, and the two high-strength springs 33 are symmetrically arranged vertically with the sliding block 32 as the center.

[0032] In this embodiment: To mitigate the risk of hard contact during synchronous transfer of the substrate via the upper and lower transfer rollers 22, the roller transfer frame 21 and the integrated support structure connecting plate 23 are not fixedly connected. Connecting posts 31 are provided on the front and rear sides of the inner side of the connecting plate 23. The sliding block 32 on the corresponding side of the roller transfer frame 21 is slidably connected to the connecting post 31. Two sets of high-strength springs 33 are sleeved on the outer side of the connecting post 31, located at the top and bottom of the sliding block 32 respectively. Under normal conditions, the initial position of the sliding block 32 is limited by the preload. If the stress on one side is large or the transfer rate changes abruptly during the transfer process, the roller transfer frame 21 on that side will rise or sink accordingly and quickly reset, thereby avoiding damage to the substrate during transfer.

[0033] Specifically, such as Figure 3 , Figure 4 As shown, the adjustment component 24 includes two sets of support plates 2401, and the two sets of support plates 2401 are respectively fixedly connected to the two sides of the bottom of the support base 1. A hollow column 2402 is fixedly connected to the top of the support plate 2401, and a linkage column 2403 is slidably connected to the inner side of the hollow column 2402. A driven plate 2404 is fixedly connected to the top of the linkage column 2403, and the two sets of driven plates 2404 are respectively fixedly connected to the two sides of the connecting plate 23 away from the support base 1.

[0034] Specifically, such as Figure 3 , Figure 4 As shown, a servo motor 2405 is fixedly connected to the outside of the hollow column 2402, and a drive gear 2406 is fixedly connected to the output end of the servo motor 2405. A toothed plate 2407 is meshed with the side of the drive gear 2406 near the hollow column 2402, and the toothed plate 2407 is fixedly connected to the side of the linkage column 2403 near the drive gear 2406.

[0035] In this embodiment: four symmetrical support plates 2401 are provided on each side of the support base 1. The top of the support plate 2401 is equipped with a composite telescopic structure composed of a hollow column 2402 and a linkage column 2403. The driven plate 2404 at the top of the linkage column 2403 is fixed to the connecting plates 23 on both sides of the top roller transmission frame 21. When the servo motor 2405 on the outside of the hollow column 2402 is started, the drive gear 2406 can be driven to rotate, thereby driving the toothed plate 2407 on the outside of the linkage column 2403 that penetrates the outer wall of the hollow column 2402. This causes the linkage column 2403 to drive the top roller transmission frame 21 to rise or fall. The minimum is to allow the upper and lower transmission rollers 22 to contact each other, and the maximum is not more than the stroke of the toothed plate 2407, thus realizing the adjustment of the distance between the two roller transmission frames 21.

[0036] Specifically, such as Figure 1 , Figure 2 As shown, an elastic soft sleeve 4 is fixedly connected to the outer side of the transmission roller 22.

[0037] Specifically, such as Figure 1 , Figure 2 As shown, a PLC control module 5 is fixedly connected to the top of the driven plate 2404.

[0038] In this embodiment: the elastic soft sleeve 4 allows the transfer roller 22 to flexibly contact and transfer the workpiece, and the PLC control module 5 can regulate the start of the servo motor 2405.

[0039] Specifically, such as Figure 1 , Figure 2 As shown, an elastic protective sleeve 6 is fixedly connected to the outside of the high-strength spring 33.

[0040] Specifically, such as Figure 1 , Figure 2 As shown, a speed control box 7 is fixedly connected to the outside of the output end of the servo motor 2405.

[0041] In this embodiment: the high-strength spring 33 can be protected by the elastic protective sleeve 6 to avoid being affected by prolonged contact with outside air, and the drive of the servo motor 2405 can be further controlled by the speed control box 7.

[0042] Working Principle: In the conveying process of ultra-thin LCD glass substrates, existing technologies mostly adopt a single set of horizontal rigid roller conveying structures. The rollers and substrates have rigid point or line contact, which easily leads to stress concentration and causes damage problems such as substrate chipping and surface scratches. At the same time, single-sided support makes the ultra-thin substrate prone to bending and sagging due to insufficient rigidity, as well as transmission vibration. Furthermore, the traditional roller group is rigidly connected to the base, which cannot buffer the vibration and impact during the conveying process. The fixed spacing is also difficult to adapt to the conveying requirements of ultra-thin substrates of different thicknesses, which seriously affects the substrate conveying yield and subsequent process accuracy. To avoid the above situations, the conveying structure of a single set of horizontal rigid rollers is no longer used. Instead, a roller conveying frame 21 composed of two sets of symmetrically arranged rollers 21 is used, with internally built-in horizontally equally spaced rollers and an outer elastic coating. The soft sleeve 4 consists of multiple conveying rollers 22 forming a roller conveying structure. The connecting plate 23 on the outer side of the bottom roller conveying frame 21 is fixedly connected to the support base 1, thus allowing for horizontal placement to facilitate material conveying. The top roller conveying frame 21 is connected to the bottom fixed roller conveying frame 21 via an adjusting component 24. This arrangement allows the spacing between the top and bottom roller conveying frames 21 to be adjusted in advance according to the thickness of the substrate during material conveying, thereby creating a conveying effect with the soft conveying rollers 22 arranged vertically. During substrate conveying, both the upper and lower sets of conveying rollers 22 are in contact simultaneously, effectively avoiding edge chipping and scratches caused by stress concentration, suppressing bending deformation, and adapting to substrates of different thicknesses, ensuring smooth conveying and high conveying yield. The main components of its adjustment assembly 24 are as follows: four symmetrical support plates 2401 are respectively arranged on both sides of the support base 1, and a composite telescopic structure composed of a hollow column 2402 and a linkage column 2403 is arranged on the top of the support plate 2401. A driven plate 2404 is arranged on the top of the linkage column 2403. The driven plate 2404 is fixedly connected to the connecting plates 23 integrated on both sides of the top roller conveyor frame 21. When it is necessary to adjust the distance between the two roller conveyor frames 21, the servo motor 2405 located outside the hollow column 2402 is started, which causes the drive gear 2406 located at the output end of the servo motor 2405 to rotate. The drive gear 2406 drives the toothed plate 2407 outside the linkage column 2403. 407 penetrates the outer wall of the hollow column 2402. Under the action of the toothed plate 2407, the linkage column 2403 can drive the top roller conveyor frame 21 to rise and fall. The lowest point is that the upper and lower conveyor rollers 22 can contact each other, and the highest point does not exceed the stroke of the toothed plate 2407. In summary, the adjustment of the two roller conveyor frames 21 is realized. In addition, in order to prevent the risk of hard contact caused by the synchronous transmission of the substrate by the upper and lower conveyor rollers 22, the support structure of the two conveyor rollers 22, namely the roller conveyor frame 21 and its integrated support structure connecting plate 23, is not fixedly connected. Instead, connecting columns 31 are provided on the front and rear sides of the inner side of the connecting plate 23, and the roller conveyor frame 21 is provided with sliding blocks 32 on the corresponding sides to slide and connect with the connecting columns 31. Two sets of high-strength springs 33 are sleeved on the outer side of the connecting columns 31.These components are respectively positioned at the top and bottom of the sliding block 32. Under normal conditions, the initial position of the sliding block 32 is limited by a preload. During the conveying process, if the stress on one side is greater and the conveying rate changes abruptly, the side roller conveyor frame 21 will correspondingly lift or lower and quickly reset to adapt to the conveying, thereby avoiding potential damage to the substrate during transport. In summary, this optimizes the flexible conveying structure of the ultra-thin liquid crystal glass substrate.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flexible transport structure for ultra-thin liquid crystal glass substrates, comprising a support base (1), characterized in that: The top of the support base (1) is provided with a double roller conveying mechanism (2). Both sides of the double roller conveying mechanism (2) are movably connected with elastic adaptive components (3). The double roller conveying mechanism (2) includes two roller transmission frames (21). Both roller transmission frames (21) are provided on the top of the support base (1) and are arranged symmetrically from top to bottom. Multiple transmission rollers (22) are rotatably connected to the inner side of the roller transmission frame (21), and the multiple transmission rollers (22) are arranged horizontally at equal intervals. A connecting plate (23) is provided on the opposite side of the roller transmission frame (21). The support base (1) is fixedly connected to the bottom of two adjacent connecting plates (23). An adjusting component (24) is movably connected to the opposite side of the two connecting plates (23).

2. The flexible conveying structure for ultra-thin liquid crystal glass substrates according to claim 1, characterized in that: The elastic adaptive component (3) includes multiple connecting posts (31), and the multiple connecting posts (31) are respectively fixedly connected to the front and rear sides of the inner side of each connecting plate (23).

3. The flexible conveying structure for ultra-thin liquid crystal glass substrates according to claim 2, characterized in that: Multiple connecting columns (31) are slidably connected to the outer side of sliding blocks (32), and the other end of the sliding blocks (32) is fixedly connected to the outer wall of the adjacent side roller conveyor frame (21).

4. The flexible transport structure for ultra-thin liquid crystal glass substrates according to claim 3, characterized in that: Two high-strength springs (33) are sleeved on the outside of the connecting column (31), and the two high-strength springs (33) are symmetrically arranged above and below the sliding block (32) with the sliding block (32) as the center.

5. The flexible transport structure for ultra-thin liquid crystal glass substrates according to claim 1, characterized in that: The adjustment component (24) includes two sets of support plates (2401), and the two sets of support plates (2401) are fixedly connected to the two sides of the bottom of the support base (1). A hollow column (2402) is fixedly connected to the top of the support plate (2401), and a linkage column (2403) is slidably connected to the inner side of the hollow column (2402). A driven plate (2404) is fixedly connected to the top of the linkage column (2403), and the two sets of driven plates (2404) are fixedly connected to the two sides of the connecting plate (23) away from the support base (1).

6. The flexible transport structure for ultra-thin liquid crystal glass substrates according to claim 5, characterized in that: A servo motor (2405) is fixedly connected to the outside of the hollow column (2402). A drive gear (2406) is fixedly connected to the output end of the servo motor (2405). A toothed plate (2407) is meshed with the side of the drive gear (2406) near the hollow column (2402). The toothed plate (2407) is fixedly connected to the side of the linkage column (2403) near the drive gear (2406).

7. The flexible transport structure for ultra-thin liquid crystal glass substrates according to claim 1, characterized in that: An elastic soft sleeve (4) is fixedly connected to the outside of the transmission roller (22).

8. The flexible transport structure for ultra-thin liquid crystal glass substrates according to claim 5, characterized in that: A PLC control module (5) is fixedly connected to the top of the driven plate (2404).

9. The flexible transport structure for ultra-thin liquid crystal glass substrates according to claim 4, characterized in that: An elastic protective sleeve (6) is fixedly connected to the outside of the high-strength spring (33).

10. The flexible transport structure for ultra-thin liquid crystal glass substrates according to claim 6, characterized in that: A speed control box (7) is fixedly connected to the outside of the output end of the servo motor (2405).

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