LED display screen conveying belt

Abstract

The invention relates to the technical field of display screen conveying, and discloses an LED display screen conveying belt which comprises an annular supporting frame, an auxiliary lifting mechanism and a side face driving mechanism. The auxiliary lifting mechanism comprises lifting wheels arranged on the side, away from the ground, of the annular supporting frame, and the lifting wheels are evenly distributed on the surface of the annular supporting frame in a height-adjustable mode; the side face driving mechanism comprises rotating seats arranged on the two sides of the annular supporting frame, the rotating seats are rotationally connected with deflection frames, the two sides of the deflection frames are rotationally connected with conveying rollers, the conveying rollers on the two sides of the deflection frames are connected with the two sides of the conveying belt respectively, and the two deflection frames are symmetrically arranged relative to the center of the rotating seats and are adjustable in angle. The two conveyor belts rotate synchronously and have the same speed. The inclined conveying belts are arranged on the front side and the rear side of the annular supporting frame, and the conveying belts avoid protrusions on the back face of the display screen body, so that the display screen body is kept in a horizontal and stable state in the conveying process.

Description

Technical Field

[0001] The invention relates to the technical field of display screen conveying, in particular to a LED display screen conveyor belt. Background Art

[0002] LED display is a display method that controls semiconductor light emitting diodes. It is composed of evenly arranged semiconductor light emitting diode pixels. Therefore, LED display screens are often made into flat plate structures to reduce the overall volume. In order to reduce the thickness of some display screens, circuit boards and other electrical components are often integrated into a small box and placed on the back of the entire display screen, so that the back of the display screen is not completely flat.

[0003] A conventional conveyor belt is just a simple belt, which means that if the display screen is placed with the display surface facing upward, the bulge on the back of the display screen will fall on the conveyor belt, making it impossible to stably place the display screen on the conveyor belt. This will cause shaking problems that affect subsequent processing steps, so it needs to be improved. Summary of the invention

[0004] The present invention provides a conveyor belt for an LED display screen, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A conveyor belt for an LED display screen comprises an annular support frame, an auxiliary lifting mechanism and a side driving mechanism; the auxiliary lifting mechanism comprises a lifting wheel arranged on the side of the annular support frame away from the ground, the lifting wheel is height-adjustable and evenly distributed on the surface of the annular support frame; the side driving mechanism comprises a rotating seat arranged on both sides of the annular support frame, the rotating seat is rotatably connected to a deflection frame, both sides of the deflection frame are rotatably connected to conveying rollers, the conveying rollers on both sides of the deflection frame are respectively connected to both sides of the conveyor belt, the two deflection frames are symmetrically arranged relative to the center of the rotating seat and the angles are adjustable, and the two conveyor belts rotate synchronously and at the same speed.

[0006] As a preferred technical solution of the present invention, the lifting wheel rotates freely, and a buffer assembly cooperating with the lifting wheel is arranged on the annular support frame. The buffer assembly comprises a lifting rod slidably connected to the annular support frame, a lifting frame is arranged at one end of the lifting rod away from the ground, the lifting frame is rotatably connected to the lifting wheel, a limit plate is arranged at one end of the lifting rod close to the ground, and a lifting spring is arranged between the limit plate and the annular support frame to drive the lifting rod to move toward the side away from the ground.

[0007] As a preferred technical solution of the present invention, both ends of the annular support frame are respectively provided with a synchronous rotation component for driving the conveyor belt to rotate and a synchronous deflection component for driving the deflection frame to rotate.

[0008] As a preferred technical solution of the present invention, the synchronous rotation assembly includes a first fixed block fixedly connected to the end of the annular support frame, the middle of the first fixed block is rotatably connected to a driving rod, both ends of the driving rod are provided with driving gears, the end of the deflection frame is rotatably connected to a transmission shaft, the center of the transmission shaft coincides with the rotation center of the deflection frame, a transmission gear meshing with the driving gear is provided on the transmission shaft, and the end of the conveying roller is provided with a driven gear meshing with the transmission gear. A first driving motor is provided inside the annular support frame, the output shaft of the first driving motor is fixedly connected to a first pulley, the first pulley is connected to a second pulley via a synchronous belt, and the second pulley is fixedly connected to the middle of the driving rod.

[0009] As a preferred technical solution of the present invention, the synchronous deflection assembly includes a second fixed block fixedly connected to the inner side of the annular support frame, the second fixed block is rotatably connected to a lifting screw, the middle part of the lifting screw is threadedly connected to a lifting plate, the end of the lifting plate is rotatably connected to one end of a pull rod, and the other end of the pull rod is rotatably connected to the end of the deflection frame, a second drive motor is arranged inside the annular support frame, and the output shaft of the second drive motor is fixedly connected to the end of the lifting screw.

[0010] The present invention has the following benefits: By arranging inclined conveyor belts on the front and rear sides of the annular support frame, the conveyor belts can only fit the front and rear straight sides of the display screen body for transportation. The conveyor belts avoid the bulges on the back of the display screen body, so that the display screen body remains horizontal and stable during transportation, and the front side of the display screen body can be better processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 The figure is a structural schematic diagram of a conveyor belt for an LED display screen.

[0013] Figure 2 This is a right view of a conveyor belt for an LED display.

[0014] Figure 3 The figure is a schematic diagram of the structure of an auxiliary lifting mechanism in a conveyor belt of an LED display screen.

[0015] Figure 4 The figure is a schematic diagram of the structure of a buffer component in a conveyor belt of an LED display screen.

[0016] Figure 5 The figure is a schematic diagram of the structure of a side drive mechanism in a conveyor belt of an LED display screen.

[0017] Figure 6 for Figure 5 Front view of .

[0018] Figure 7 This is a structural schematic diagram of a deflection frame in a conveyor belt of an LED display screen.

[0019] Figure 8 The figure is a schematic diagram of the structure of a synchronous rotating component in a conveyor belt of an LED display screen.

[0020] Fig. 9 The figure is a schematic diagram of the structure of a synchronous deflection component in a conveyor belt of an LED display screen.

[0021] In the figure: 1. annular support frame; 2. auxiliary lifting mechanism; 3. side driving mechanism; 4. lifting wheel; 5. lifting frame; 6. lifting rod; 7. lifting spring; 8. limit plate; 9. buffer assembly; 10. deflection frame; 11. conveyor roller; 12. conveyor belt; 13. rotating seat; 14. synchronous rotating assembly; 15. synchronous deflection assembly; 16. bearing seat; 17. first pulley; 18. synchronous belt; 19. second pulley; 20. first drive motor; 21. first fixed block; 22. driving rod; 23. driven gear; 24. transmission gear; 25. transmission shaft; 26. driving gear; 27. pull rod; 28. lifting plate; 29. ​​lifting screw; 30. second fixed block; 31. second drive motor; 32. display screen body. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In one embodiment, see Figure 1-Figure 9 , a LED display conveyor belt, comprising an annular support frame 1, an auxiliary lifting mechanism 2 and a side driving mechanism 3, the annular support frame 1 is a U-shaped structure, so that some driving units of the conveyor belt can be installed inside the annular support frame 1, which plays a certain protective role, and structures such as wires can also be hidden, making the appearance of the entire conveyor belt more compact, and in order to stably place the annular support frame 1 on the ground, a supporting foot is arranged on the lower surface of the annular support frame 1; The auxiliary lifting mechanism 2 includes a lifting wheel 4 arranged on the upper surface of the annular support frame 1. The lifting wheel 4 can freely rotate left and right, and a plurality of lifting wheels 4 are evenly distributed on the upper surface of the annular support frame 1. The height of the lifting wheel 4 can also be adaptively adjusted, so that after the display screen body 32 is placed on the lifting wheel 4 with the back facing downward, different lifting wheels 4 can be at different heights to support the back of the display screen body 32, and because the lifting wheel 4 can also rotate, the display screen body 32 can move left and right to achieve the effect of conveying; The side driving mechanism 3 includes a rotating seat 13 arranged on the front and rear sides of the annular support frame 1, the rotating seat 13 is arranged on the front and rear sides of the left and right side walls of the annular support frame 1, and the left and right rotating seats are respectively rotatably connected to the left and right ends of the deflection frame 10, the rotation centers of the left and right rotating seats 13 are coincident, the deflection frame 10 is a U-shaped structure with an opening toward the annular support frame 1, a bearing seat 16 is arranged on the side wall of the deflection frame 10, the bearing seat 16 and the side of the deflection frame 10 are respectively rotatably connected to the front and rear sides of the conveying roller 11, the conveying roller 11 is successively arranged on the left and right sides of the deflection frame 10, and the left and right conveying rollers 11 are connected to the two sides of the conveying belt 12 of the annular structure, so a conveying belt 12 is respectively arranged on the front and rear sides of the annular support frame 1, the rotation directions of the front and rear conveying belts 12 are the same, and the rotation speeds are also the same, so when the front and rear sides of the display screen body 32 fall Behind the upper surface of the front and rear conveyor belts 12, the front and rear conveyor belts 12 can drive the display screen body 32 to move left and right, and in order to ensure that the display screen body 32 can be in a horizontal state, the front and rear deflection frames 10 are set in a mirror-symmetrical manner relative to the annular support frame 1, so that the front and rear sides of the display screen body 32 can be stably attached to the surface of the conveyor belt 12, and because the sizes of display screen bodies 32 of different specifications are different, in order to allow the bottom of the display screen body 32 to effectively contact the lifting wheel 4, the front and rear deflection frames 10 can rotate freely, that is, the angle formed by the front and rear conveyor belts 12 can be freely adjusted, so that after the front and rear sides of the display screen bodies 32 of different sizes are attached to the conveyor belts 12, the back of the display screen body 32 can also effectively contact the lifting wheel 4, so that the display screen body 32 is stably supported and moves left and right.

[0024] In one case of the present embodiment, in order to allow the lifting wheel 4 to adaptively descend after the display screen body 32 falls on the lifting wheel 4, a buffer assembly 9 is provided on the annular support frame 1, and the buffer assembly 9 can realize the up and down floating of the lifting wheel 4. The buffer assembly 9 includes a lifting rod 6 slidably connected to the annular support frame 1, the lifting rod 6 is vertically arranged, and a lifting frame 5 is arranged at the upper end of the lifting rod 6, and the lifting frame 5 is rotatably connected to the front and rear ends of the lifting wheel 4, and a limit plate 8 is arranged at the lower end of the lifting rod 6, and a lifting spring 7 is arranged between the limit plate 8 and the annular support frame 1. When the display screen body 32 falls on the lifting wheel 4, the lifting spring 7 is stretched, and at this time, the lifting spring 7 always maintains the effect of pushing the lifting rod 6 upward, so that the lifting wheel 4 can be stably attached to the lower surface of the display screen body 32.

[0025] In one case of the present embodiment, a synchronous rotation component 14 is arranged inside the left side wall of the annular support frame 1. The synchronous rotation component 14 can simultaneously drive the front and rear conveyor belts 12 to rotate forward or reversely, and the rotation speed is the same, so that the movement speed and direction of the front and rear sides of the display screen body 32 are the same. The synchronous rotation component 14 includes a first fixed block 21 arranged in the middle of the left side wall of the annular support frame 1. The middle part of the first fixed block 21 is rotatably connected to a driving rod 22 arranged in the front and rear directions. A driving gear 26 is arranged at the front and rear ends of the driving rod 22. A transmission shaft 25 is rotatably connected to the left end of the deflection frame 10. A transmission gear 24 meshing with the driving gear 26 is arranged at the end of the transmission shaft 25. A driven gear 23 meshing with the transmission gear 24 is arranged at the end of the left conveying roller 11 close to the annular support frame 1, and the rotation center of the transmission shaft 25 coincides with the rotation center of the deflection frame 10. Therefore When the deflection frame 10 rotates, the driven gear 23 will also rotate around the transmission gear 24. At this time, the meshing transmission effect of the driven gear 23 and the transmission gear 24 will not change, that is to say, even if the deflection frame 10 rotates around the rotating seat 13, the driving rod 22 can also continuously drive the front and rear two conveying rollers 11 to rotate effectively, and a first driving motor 20 is arranged at the left end of the lower side surface of the annular support frame 1, and the output shaft of the first driving motor 20 is fixedly connected to the first pulley 17, and the first pulley 17 is connected to the second pulley 19 through the synchronous belt 18, and the second pulley 19 is fixedly connected to the middle part of the driving rod 22. Therefore, the first driving motor 20 rotates the driving rod 22 through the belt transmission, and the driving rod 22 rotates the conveying roller 11 through the meshing transmission of the driving gear 26 and the transmission gear 24 and the meshing transmission of the transmission gear 24 and the driven gear 23, so that the front and rear conveyor belts 12 rotate synchronously. Through mechanical transmission, it can be achieved that only one first drive motor 20 is used to drive the two conveyor belts 12 to rotate synchronously front and back while the deflection frame 10 can freely adjust the angle. Compared with respectively setting motors on the front and rear sides, the cost of one motor is lower, and mechanical transmission is more stable and simpler than speed adjustment set by program. No additional motor control unit is required. It is only necessary to give the first drive motor 20 a signal to rotate at a constant speed, and the performance requirements for the first drive motor 20 are also lower.

[0026] In one case of the present embodiment, a synchronous deflection assembly 15 is arranged inside the right side wall of the annular support frame 1, and the synchronous deflection assembly 15 can simultaneously drive the front and rear deflection frames 10 to rotate. The synchronous deflection assembly 15 includes a second fixed block 30 arranged above the right side wall of the annular support frame 1, and the second fixed block 30 is rotatably connected to the upper part of the vertically arranged lifting screw rod 29, and the lower end of the lifting screw rod 29 is rotatably connected to the bottom of the annular support frame 1, and a middle part of the lifting plate 28 arranged in a front-to-back direction is threadedly connected in the middle part of the lifting screw rod 29. The front and rear ends of the lifting plate 28 are rotationally connected to the upper end of the pull rod 27, and the lower end of the pull rod 27 is rotationally connected to the end of the deflection frame 10, and a second drive motor 31 is arranged on the upper part of the right side wall of the annular support frame 1, and the output shaft of the second drive motor 31 is fixedly connected to the upper end of the lifting screw rod 29. Therefore, the second drive motor 31 drives the lifting plate 28 to move up and down through the lifting screw rod 29, and the lifting plate 28 pulls the front and rear deflection frames 10 to rotate through the pull rod 27, thereby realizing the effect of synchronous adjustment of the inclination angles of the front and rear deflection frames 10.

[0027] During the implementation of this embodiment, the annular support frame 1 is ensured to be placed horizontally on the ground, and the entire conveyor belt is coordinated with the processing line of the display screen body 32, and the transfer robot of the relevant display screen body 32 is matched, so that the display screen body 32 can enter from the left side of the conveyor belt and move out from the right side during the processing.

[0028] Parameter adjustment, according to the size parameters of the display screen body 32 on the existing assembly line, determine that the angle between the front and rear deflection frames 10 is vertical, start the second drive motor 31, and the second drive motor 31 changes the angle between the front and rear deflection frames 10 through the cooperation of the lifting screw 29 and the lifting plate 28, so that after the display screen body 32 is placed horizontally on the two conveyor belts 12, the back of the display screen body 32 will also effectively contact the lifting wheel 4, stop the second drive motor 31, and under the action of the self-locking characteristics of the screw nut itself, the height of the lifting plate 28 is fixed, and the angle between the front and rear deflection frames 10 is fixed.

[0029] Conveying process, start the first drive motor 20, the first drive motor 20 through a series of gear transmission and belt transmission to make the front and rear conveyor belts 12 rotate, the robot on the assembly line clamps the left and right sides of the display screen body 32, and moves the display screen body 32 horizontally to the left side of the annular support frame 1, and releases the display screen body 32. The side edges of the front and rear sides of the display screen body 32 will fall on the conveyor belt 12, and the contact position is separated from the conveyor roller 11. Therefore, the conveyor belt 12 itself can be deformed to a certain extent, so that the conveyor belt 12 can effectively fit the front and rear sides of the display screen body 32 , and the lower surface of the display screen body 32 will fall on the lifting wheel 4. When the lifting wheel 4 contacts the raised part on the back of the display screen body 32, the lifting wheel 4 will drop a little higher, and the conveyor belt 12 drives the display screen body 32 to move to the right. When the display screen body 32 moves to the right side of the annular support frame 1, the subsequent robot arm transfers the display screen body 32 again. Therefore, in the process of the display screen body 32 moving to the right, the upper surface of the display screen body 32 is always set upward, and the relevant processing equipment can perform a series of processing procedures such as assembly, labeling or testing on the front of the display screen body 32.

[0030] The present invention is applicable to a conveyor belt for an LED display screen. By arranging an inclined conveyor belt 12 on the front and rear sides of a ring-shaped support frame 1, the conveyor belt 12 can only fit the front and rear straight sides of a display screen body 32 for transportation. The conveyor belt 12 avoids the protrusion on the back of the display screen body 32, so that the display screen body 32 maintains a horizontal and stable state during transportation, and the front side of the display screen body 32 can be better processed.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A LED display conveyor belt, characterized in that: It includes an annular support frame, an auxiliary lifting mechanism and a side driving mechanism; The auxiliary lifting mechanism includes lifting wheels arranged on the side of the annular support frame away from the ground, and the lifting wheels are height-adjustable and evenly distributed on the surface of the annular support frame; The side driving mechanism includes a rotating seat arranged on both sides of the annular support frame, the rotating seat is rotatably connected to a deflection frame, and both sides of the deflection frame are rotatably connected to conveying rollers. The conveying rollers on both sides of the deflection frame are respectively connected to both sides of the conveyor belt. The two deflection frames are symmetrically arranged relative to the center of the rotating seat and the angles are adjustable. The two conveyor belts rotate synchronously and at the same speed.

2. The LED display conveyor belt according to claim 1, characterized in that: The lifting wheel rotates freely, and a buffer component cooperating with the lifting wheel is arranged on the annular support frame.

3. The LED display conveyor belt according to claim 2, characterized in that: The buffer assembly includes a lifting rod slidably connected to an annular support frame, a lifting frame is provided at the end of the lifting rod away from the ground, the lifting frame is rotatably connected to a lifting wheel, a limiting plate is provided at the end of the lifting rod close to the ground, and a lifting spring is provided between the limiting plate and the annular support frame to drive the lifting rod to move toward the side away from the ground.

4. The LED display conveyor belt according to claim 1, characterized in that: Both ends of the annular support frame are respectively provided with a synchronous rotation component for driving the conveyor belt to rotate and a synchronous deflection component for driving the deflection frame to rotate.

5. The LED display conveyor belt according to claim 4, characterized in that: The synchronous rotation component includes a first fixed block fixedly connected to the end of the annular support frame, the middle part of the first fixed block is rotatably connected to a driving rod, both ends of the driving rod are provided with driving gears, the end of the deflection frame is rotatably connected to a transmission shaft, the center of the transmission shaft coincides with the rotation center of the deflection frame, the transmission shaft is provided with a transmission gear meshing with the driving gear, and the end of the conveying roller is provided with a driven gear meshing with the transmission gear.

6. The LED display conveyor belt according to claim 5, characterized in that: A first driving motor is arranged inside the annular support frame, the output shaft of the first driving motor is fixedly connected to a first pulley, the first pulley is connected to a second pulley via a synchronous belt, and the second pulley is fixedly connected to the middle part of the driving rod.

7. The LED display conveyor belt according to claim 4, characterized in that: The synchronous deflection assembly includes a second fixed block fixedly connected to the inner side of the annular support frame, the second fixed block is rotatably connected to a lifting screw, the middle part of the lifting screw is threadedly connected to a lifting plate, the end of the lifting plate is rotatably connected to one end of a pull rod, and the other end of the pull rod is rotatably connected to the end of the deflection frame, a second drive motor is arranged inside the annular support frame, and the output shaft of the second drive motor is fixedly connected to the end of the lifting screw.

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