Stable conveying device for liquid crystal display screen production

Abstract

The utility model relates to the technical field of displayer conveying devices, and aims to solve the problems that in the existing liquid crystal display screen production and transportation process, stability is poor, and the cleanliness of a finally output liquid crystal display screen cannot be guaranteed. The utility model provides a stable conveying device for liquid crystal display screen production. The stable conveying device comprises a conveying belt, a pair of limiting assemblies and a purging assembly. The limiting assembly comprises a pair of lifting pieces and a plurality of lengthening plates. The pair of lifting pieces is arranged at the two ends of the conveying belt respectively; the lengthening plates are connected between the pair of lifting pieces in the direction of the conveying belt. The purging assembly is arranged between the pair of limiting assemblies and extends towards the conveying face of the conveying belt through a telescopic assembly. The stable conveying device for liquid crystal display screen production not only can limit and protect the liquid crystal display screen conveyed on the conveying belt in the whole process, but also can be suitable for conveying belts with different lengths and heights used in different production links.

Description

Technical Field

[0001] The utility model relates to the technical field of display transmission devices, in particular to a stable transmission device for producing liquid crystal display screens. Background Art

[0002] During the production and transportation of the LCD screen, since it contains a liquid crystal glass substrate, it is necessary to ensure both stability during transportation and cleanliness. In the prior art, an air blow assembly is usually provided for blowing and cleaning.

[0003] For example, the patent with publication number CN211569412U discloses a dust-proof conveying device for a liquid crystal display glass substrate. Specifically, the liquid crystal display glass substrate is conveyed on a conveyor belt. During this process, an external control system blows air to a support plate and a conveyor belt through a cleaning component. When the liquid crystal display glass substrate reaches above the support plate, the gas blown out of the air nozzle directly blows on the upper surface of the liquid crystal display glass substrate to blow away the dust. At the same time, the gas blown out of the air nozzle contacts the support plate and moves along the support plate to blow away the dust on the lower surface of the liquid crystal display glass substrate. After the liquid crystal display glass substrate is closer to a driven wheel, it is conveyed to the equipment of the next process by an external conveying mechanism.

[0004] However, in the actual production and transportation process, the transportation usually has a certain transmission distance, so the conveyor belt also has a long length. If the existing technology is used to set a blowing device at one end of the conveyor belt, the dustproofness of the LCD screen during the entire transmission process cannot be guaranteed. In addition, the size of the LCD screen is not easy to directly place it flat on the conveyor belt for transmission, accompanied by the blowing and cleaning of the blowing component, there is a risk of the LCD screen falling and breaking;

[0005] Based on the above description, there is an urgent need for a stable transmission device for LCD production that can stably transmit and ensure that the LCD can be cleaned and dust-proof during the entire transmission process. Utility Model Content

[0006] The utility model aims to provide a stable transmission device for liquid crystal display screen production, aiming to solve the technical problems of poor stability and inability to ensure the cleanliness of the final output liquid crystal display screen during the production and transportation of the existing liquid crystal display screen.

[0007] The embodiments of the present invention are implemented by the following technical solutions:

[0008] A stable transmission device for producing liquid crystal display screens, comprising a conveyor belt, a pair of limit assemblies and a purge assembly; the limit assembly comprises a pair of lifting members and a plurality of extension plates; the pair of the lifting members are respectively arranged at the two ends of the conveyor belt; the plurality of extension plates are connected between the pair of the lifting members along the direction of the conveyor belt; the purge assembly is arranged between the pair of the limit assemblies and extends toward the conveying surface of the conveyor belt through a telescopic assembly.

[0009] Preferably, a plurality of the extension plates are connected between a pair of the lifting members via a connecting assembly.

[0010] Preferably, the connecting assembly includes a plurality of screw hole connecting plates and a plurality of bolts; the extension plate and the lifting member are provided with a plurality of threaded holes on one end away from the conveyor belt; the extension plate and the lifting member are connected to the screw hole connecting plate through a plurality of bolts; a plurality of the extension plates are connected between a pair of the lifting members through a plurality of the screw hole connecting plates.

[0011] Preferably, the lifting member comprises a lifting seat and a limiting plate; the limiting plate is extended through the lifting seat and is arranged on one side of the conveyor belt.

[0012] Preferably, the lifting member further includes an infrared ranging sensor; the infrared ranging sensor is arranged at the bottom of the limiting plate and faces the conveying surface of the conveyor belt.

[0013] Preferably, a protective layer is provided at one end of the limiting plate close to the other limiting component.

[0014] Preferably, the purge assembly includes a gas compressor and a plurality of bidirectional jet heads; the telescopic assembly includes a pair of telescopic rods and a plurality of support members; the plurality of bidirectional jet heads are all connected to the gas compressor; the pair of telescopic rods of the gas compressor reciprocate and telescope at the top of the conveyor belt; the telescopic rods are connected to the lifting member through the support member.

[0015] Preferably, the support member includes a pair of support uprights; the pair of support uprights are respectively arranged on the top of a pair of lifting members; a sliding rod is provided between the pair of support uprights; both ends of the gas compressor are connected to the sliding rod through a sliding member; the sliding member is arranged at one end of the gas compressor close to the telescopic rod.

[0016] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0017] The utility model arranges a purge component between a pair of limit components, and the purge component is extended and retracted by the telescopic component, so that the liquid crystal display screen can be cleaned of dust and other impurities during the whole process of being conveyed, thereby ensuring the cleanliness of the liquid crystal display screen for final output and use;

[0018] By respectively arranging lifting parts at both ends of the conveyor belt and flexibly splicing multiple extension plates between a pair of lifting parts according to the length of the conveyor belt, not only can the LCD screen transported on the conveyor belt be protected throughout the entire process to prevent it from being dislocated, falling, and other unstable situations during the purging and cleaning process, but it can also be suitable for conveyor belts of different lengths and heights used in different production links. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 It is a side view of the utility model;

[0022] Figure 3 It is a top view of the utility model.

[0023] Icons: 1- conveyor belt, 2- limit assembly, 21- lifting member, 211- lifting seat, 212- limit plate, 22- extension plate, 3- purge assembly, 31- gas compressor, 32- bidirectional jet head, 4- telescopic assembly, 41- telescopic rod, 42- support member, 5- connection assembly, 51- screw hole connecting plate, 52- bolt, 6- infrared ranging sensor, 7- protective layer, 8- slide rod, 9- slide member. DETAILED DESCRIPTION

[0024] Example 1

[0025] See also Figures 1 to 3 The utility model provides the following technical solutions: a stable transmission device for liquid crystal display screen production, which is suitable for cleaning the conveyed liquid crystal display screen during the process of conveying the liquid crystal display screen.

[0026] Specifically, Figure 1 and Figure 2 As shown, a stable transmission device for producing liquid crystal display screens includes a conveyor belt 1, a pair of limit assemblies 2 and a purge assembly 3; the limit assembly 2 includes a pair of lifting members 21 and a plurality of extension plates 22; the pair of lifting members 21 are respectively arranged at both ends of the conveyor belt 1; the plurality of extension plates 22 are connected between the pair of lifting members 21 along the direction of the conveyor belt 1; the purge assembly 3 is arranged between the pair of limit assemblies 2 and extends to the conveying surface of the conveyor belt 1 through the telescopic assembly 4.

[0027] In the present embodiment, a purge component 3 is arranged between a pair of limit components 2, and the purge component 3 is extended and retracted by the telescopic component 4, so that the LCD screen can be cleaned of dust and other impurities during the entire process of being conveyed, thereby ensuring the cleanliness of the LCD screen that is finally output for use; further, by respectively arranging lifting members 21 at both ends of the conveyor belt 1, and flexibly splicing multiple extension plates 22 between a pair of lifting members 21 according to the length of the conveyor belt 1, it is not only possible to provide full-time limit protection for the LCD screen transported on the conveyor belt 1 to avoid dislocation, falling and other instability during the purging and cleaning process, but also can be suitable for conveyor belts 1 of different lengths and heights used in different production links.

[0028] In this embodiment, the lifting member 21 includes a lifting seat 211 and a limiting plate 212 ; the limiting plate 212 is extended through the lifting seat 211 and is disposed on one side of the conveyor belt 1 .

[0029] Specifically, Figure 1 and Figure 3 As shown, a plurality of extension plates 22 are connected between a pair of lifting members 21 through a connection assembly 5. The connection assembly 5 includes a plurality of screw hole connection plates 51 and a plurality of bolts 52; a plurality of threaded holes are provided on the side ends of the extension plates 22 and the lifting members 21 away from the conveyor belt 1; the extension plates 22 and the lifting members 21 are connected to the screw hole connection plates 51 through a plurality of bolts 52; and a plurality of extension plates 22 are connected between a pair of lifting members 21 through a plurality of screw hole connection plates 51.

[0030] In this embodiment, the screw hole connecting plate 51 and the bolt 52 are used to connect the limit plate 212 and the extension plate 22, and can also be used to connect multiple extension plates 22. It is easy to disassemble and assemble and has a wide range of applications.

[0031] Specifically, Figure 1 and Figure 2 As shown, the lifting member 21 also includes an infrared distance measuring sensor 6 ; the infrared distance measuring sensor 6 is arranged at the bottom of the limiting plate 212 and faces the conveying surface of the conveyor belt 1 .

[0032] In this embodiment, the lifting seat 211 is specifically composed of a base and an electric lifting rod, and the electric lifting rod is further extended to the top of the conveyor belt 1 through a cross bar to connect to the limit plate 212; wherein, the electric lifting rod is driven by a servo motor, and the servo motor and the infrared ranging sensor 6 are electrically connected to the single-chip microcomputer or the PLC circuit controller. The infrared ranging sensor 6 senses the distance between the bottom of the limit plate 212 and the conveyor belt 1, and transmits an electrical signal to the single-chip microcomputer or the PLC circuit controller, which can control the electric lifting rod to rise and fall to a suitable position, thereby being able to adapt to conveyor belts 1 of different heights, and avoiding the limit plate 212 from being worn out by contact with the conveyor belt 1 during the process of limiting the protection of the LCD display screen. No manual adjustment is required, and it is accurate and effective.

[0033] In this embodiment, a protective layer 7 is provided at one end of the limiting plate 212 close to the other limiting component 2; the protective layer 7 can prevent the limiting plate 212 from damaging the LCD screen; the protective layer 7 can be made of sponge, soft rubber or other materials.

[0034] Specifically, Figures 1 to 3 As shown, the purge assembly 3 includes a gas compressor 31 and a plurality of bidirectional nozzles 32; the telescopic assembly 4 includes a pair of telescopic rods 41 and a plurality of supporting members 42; the plurality of bidirectional nozzles 32 are all connected to the gas compressor 31; the pair of telescopic rods 41 of the gas compressor 31 reciprocate and telescope on the top of the conveyor belt 1; the telescopic rods 41 are connected to the lifting member 21 through the supporting member 42. The supporting member 42 includes a pair of supporting vertical plates; the pair of supporting vertical plates are respectively arranged on the top of the pair of lifting members 21; a sliding rod 8 is arranged between the pair of supporting vertical plates; both ends of the gas compressor 31 are connected to the sliding rod 8 through a sliding member 9; the sliding member 9 is arranged at one end of the gas compressor 31 close to the telescopic rod 41.

[0035] In this embodiment, the telescopic rod 41 is an electric telescopic rod; in addition, the support vertical plate is connected to the lifting member 21 through the same screw structure as the connecting component 5, so as to facilitate disassembly and assembly; a support vertical plate is provided between a pair of lifting members 21, so as to facilitate the setting of a sliding rod 8 between a pair of limit plates 212, and the gas compressor 31 is through a sliding member 9 (specifically a pair of sliding cylinders provided on both sides of the gas compressor 31 or a sliding cylinder provided at the bottom of the gas compressor 31), and is sleeved on the sliding rod 8 through the sliding member 9, and further pushed by the telescopic rod 41 provided at the end of a lifting member 21, thereby pushing the gas compressor 31 along the sliding rod 8, that is, along the conveyor belt 1, to clean the LCD screen throughout the process.

[0036] In this embodiment, the bidirectional jet head 32 is arranged in an eight-shaped manner on the top of the conveyor belt 1, so that when the gas compressor 31 is reciprocated by the telescopic rod 41, bidirectional blowing can be performed to fully ensure the cleanliness of the LCD screen finally delivered.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stable transmission device for producing liquid crystal display screens, comprising a conveyor belt (1), characterized in that: It also comprises a pair of limiting components (2) and a purge component (3); the limiting component (2) comprises a pair of lifting members (21) and a plurality of extension plates (22); the pair of lifting members (21) are respectively arranged at the two ends of the conveyor belt (1); the plurality of extension plates (22) are connected between the pair of lifting members (21) along the direction of the conveyor belt (1); the purge component (3) is arranged between the pair of limiting components (2) and extends toward the conveying surface of the conveyor belt (1) through a telescopic component (4).

2. The stable transmission device for producing liquid crystal display screens according to claim 1, characterized in that: A plurality of the extension plates (22) are connected between a pair of lifting members (21) via a connecting assembly (5).

3. The stable transmission device for producing liquid crystal display screens according to claim 2, characterized in that: The connection assembly (5) comprises a plurality of screw hole connection plates (51) and a plurality of bolts (52); a plurality of threaded holes are provided on one end of the extension plate (22) and the lifting member (21) away from the conveyor belt (1); the extension plate (22) and the lifting member (21) are connected to the screw hole connection plate (51) via a plurality of bolts (52); a plurality of extension plates (22) are connected between a pair of lifting members (21) via a plurality of screw hole connection plates (51).

4. The stable transmission device for producing a liquid crystal display panel according to any one of claims 1 to 3, characterized in that: The lifting member (21) comprises a lifting seat (211) and a limiting plate (212); the limiting plate (212) is extended through the lifting seat (211) and is arranged on one side of the conveyor belt (1).

5. The stable transmission device for producing liquid crystal display screens according to claim 4, characterized in that: The lifting member (21) further comprises an infrared distance measuring sensor (6); the infrared distance measuring sensor (6) is arranged at the bottom of the limiting plate (212) and faces the conveying surface of the conveyor belt (1).

6. The stable transmission device for producing liquid crystal display screens according to claim 4, characterized in that: A protective layer (7) is provided at one end of the limiting plate (212) close to the other limiting component (2).

7. The stable transmission device for producing a liquid crystal display panel according to any one of claims 1 to 3, characterized in that: The purge assembly (3) comprises a gas compressor (31) and a plurality of bidirectional nozzles (32); the telescopic assembly (4) comprises a pair of telescopic rods (41) and a plurality of supporting members (42); the plurality of bidirectional nozzles (32) are all connected to the gas compressor (31); the pair of telescopic rods (41) of the gas compressor (31) reciprocate and telescope at the top of the conveyor belt (1); the telescopic rods (41) are connected to the lifting member (21) through the supporting member (42).

8. The stable transmission device for producing liquid crystal display panels according to claim 7, characterized in that: The support member (42) comprises a pair of support vertical plates; the pair of support vertical plates are respectively arranged on the top of a pair of lifting members (21); a sliding rod (8) is arranged between the pair of support vertical plates; both ends of the gas compressor (31) are connected to the sliding rod (8) through a sliding member (9); the sliding member (9) is arranged at one end of the gas compressor (31) close to the telescopic rod (41).

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