An LED display conveyor belt

Abstract

The present invention relates to the technical field of display screen conveying, and discloses an LED display screen conveyor belt, which 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 evenly distributed on the surface of the annular support frame with adjustable height; the side driving mechanism includes rotating seats arranged on both sides of the annular support frame, the rotating seats are rotatably connected with deflection frames, both sides of the deflection frames are rotatably connected with conveyor rollers, the conveyor rollers on both sides of the deflection frames are respectively connected to both sides of the conveyor belt, the two deflection frames are symmetrically arranged relative to the center of the rotating seats and the angles are adjustable, and the two conveyor belts rotate synchronously and at the same speed. By arranging inclined conveyor belts on the front and rear sides of the annular support frame, the conveyor belts avoid the protrusions on the back of the display screen main body, so that the display screen main body remains horizontal and stable during the conveying process.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen conveying, and specifically relates to an LED display screen conveyor belt. Background Art

[0002] An LED display screen is a display method that controls semiconductor light-emitting diodes and is composed of uniformly arranged semiconductor light-emitting diode pixel points. Therefore, the LED display screen is often made into a flat plate structure to reduce the overall volume. In order to reduce the thickness, some display screens often integrate electrical components such as circuit boards in a small box and place it on the back of the entire display screen, so that the back of the display screen is not in a completely flat state.

[0003] A conventional conveyor belt is just a simple belt, which leads to the problem that if the display surface of the display screen is placed upwards, the protrusion on the back of the display screen will fall on the conveyor belt, so that the display screen cannot be stably placed on the conveyor belt, and there will be a shaking problem, which affects the subsequent processing procedures. Therefore, it needs to be improved. Summary of the Invention

[0004] The present invention provides an LED display screen conveyor belt to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An LED display screen conveyor belt 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 evenly distributed on the surface of the annular support frame with adjustable height; the side driving mechanism includes rotating seats arranged on both sides of the annular support frame, the rotating seats are rotatably connected with deflection frames, both sides of the deflection frames are rotatably connected with conveyor rollers, the conveyor rollers on both sides of the deflection frames are respectively connected to both sides of the conveyor belt, the two deflection frames are symmetrically arranged with respect to the center of the rotating seats and the angle is adjustable, and the two conveyor belts rotate synchronously and at the same speed.

[0007] As a preferred technical solution of the present invention, the lifting wheels rotate freely, and a buffer assembly is arranged on the annular support frame in cooperation with the lifting wheels. The buffer assembly includes 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 with the lifting wheel, a limiting plate is arranged at one end of the lifting rod close to the ground, and a lifting spring for driving the lifting rod to move towards the side away from the ground is arranged between the limiting plate and the annular support frame.

[0008] As a preferred technical solution of the present invention, synchronous rotation assemblies for driving the conveyor belt to rotate and synchronous deflection assemblies for driving the deflection frames to rotate are respectively arranged at both ends of the annular support frame.

[0009] 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. A driving rod is rotatably connected to the middle of the first fixed block. Active gears are arranged at both ends of the driving rod. A transmission shaft is rotatably connected to the end of the deflection frame. The center of the transmission shaft coincides with the rotation center of the deflection frame. A transmission gear meshing with the active gear is arranged on the transmission shaft. A driven gear meshing with the transmission gear is arranged at the end of the conveyor roller. A first driving motor is arranged inside the annular support frame. The output shaft of the first driving motor is fixedly connected with a first belt pulley. The first belt pulley is connected with a second belt pulley through a synchronous belt. The second belt pulley is fixedly connected to the middle of the driving rod.

[0010] 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. A lifting screw rod is rotatably connected to the second fixed block. A lifting plate is threadedly connected to the middle of the lifting screw rod. One end of a pull rod is rotatably connected to the end of the lifting plate. The other end of the pull rod is rotatably connected to the end of the deflection frame. A second driving motor is arranged inside the annular support frame. The output shaft of the second driving motor is fixedly connected to the end of the lifting screw rod.

[0011] The present invention has the following beneficial effects:

[0012] By arranging inclined conveyor belts on the front and rear sides of the annular support frame, the conveyor belts can be attached only to the flat side edges of the front and back of the display screen body for transportation. The conveyor belts avoid the protrusions on the back of the display screen body, so that the display screen body remains horizontal and stable during transportation, and the front of the display screen body can be better processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic structural diagram of a conveyor belt for an LED display screen.

[0015] Figure 2 It is a right view of a conveyor belt for an LED display screen.

[0016] Figure 3 It is a schematic structural diagram of an auxiliary lifting mechanism in a conveyor belt for an LED display screen.

[0017] Figure 4It is a schematic structural diagram of a buffer component in an LED display conveyor belt.

[0018] Figure 5 It is a schematic structural diagram of a side drive mechanism in an LED display conveyor belt.

[0019] Figure 6 It is Figure 5 the front view of.

[0020] Figure 7 It is a schematic structural diagram of a deflection frame in an LED display conveyor belt.

[0021] Figure 8 It is a schematic structural diagram of a synchronous rotation component in an LED display conveyor belt.

[0022] Figure 9 It is a schematic structural diagram of a synchronous deflection component in an LED display conveyor belt.

[0023] In the figure: 1, annular support frame; 2, auxiliary lifting mechanism; 3, side drive mechanism; 4, lifting wheel; 5, lifting frame; 6, lifting rod; 7, lifting spring; 8, limit plate; 9, buffer component; 10, deflection frame; 11, conveyor roller; 12, conveyor belt; 13, rotating seat; 14, synchronous rotation component; 15, synchronous deflection component; 16, bearing seat; 17, first belt pulley; 18, synchronous belt; 19, second belt pulley; 20, first driving motor; 21, first fixing block; 22, driving rod; 23, driven gear; 24, transmission gear; 25, transmission shaft; 26, driving gear; 27, pull rod; 28, lifting plate; 29, lifting lead screw; 30, second fixing block; 31, second driving motor; 32, display screen main body. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] In one embodiment, please refer to Figures 1-9, an LED display conveyor belt, including a ring-shaped support frame 1, an auxiliary lifting mechanism 2 and a side driving mechanism 3. The ring-shaped support frame 1 is a rectangular structure, so that some driving units of the conveyor belt can be installed inside the ring-shaped support frame 1, playing 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 for the ring-shaped support frame 1 to be stably placed on the ground, support feet are provided on the lower surface of the ring-shaped support frame 1;

[0026] The auxiliary lifting mechanism 2 includes lifting wheels 4 provided on the upper surface of the ring-shaped support frame 1. The lifting wheels 4 can rotate freely left and right, and a plurality of lifting wheels 4 are evenly distributed on the upper surface of the ring-shaped support frame 1. The height of the lifting wheels 4 can also be adjusted adaptively. Thus, after the back of the display main body 32 is placed face down on the lifting wheels 4, different lifting wheels 4 can be at different heights to support the back of the display main body 32. And because the lifting wheels 4 can also rotate, the display main body 32 can move left and right to achieve the conveying effect;

[0027] The side driving mechanism 3 includes rotating seats 13 provided on the front and rear sides of the ring-shaped support frame 1. The rotating seats 13 are provided on the front and rear sides of the left and right side walls of the ring-shaped support frame 1, and the left and right two 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 two rotating seats 13 coincide. The deflection frame 10 is a U-shaped structure with an opening facing the ring-shaped support frame 1. Bearing seats 16 are provided on the side walls of the deflection frame 10. The bearing seats 16 and the sides of the deflection frame 10 are respectively rotatably connected to the front and rear sides of the conveyor roller 11. The conveyor rollers 11 are successively arranged facing the left and right sides of the deflection frame 10. The left and right two conveyor rollers 11 are connected to both sides of the annular conveyor belt 12. Therefore, one conveyor belt 12 is provided on each of the front and rear sides of the ring-shaped support frame 1. The rotation directions of the front and rear two conveyor belts 12 are the same, and the rotation speeds are also the same. Thus, when the front and rear sides of the display main body 32 fall on the upper surfaces of the front and rear two conveyor belts 12, the front and rear two conveyor belts 12 can drive the display main body 32 to move left and right. And in order to ensure that the display main body 32 can be in a horizontal state, the front and rear two deflection frames 10 are arranged mirror-symmetrically with respect to the ring-shaped support frame 1, so that the front and rear sides of the display main body 32 can stably fit on the surface of the conveyor belt 12. And because the sizes of different specifications of the display main body 32 are different, in order to make the bottom of the display main body 32 effectively contact with the lifting wheels 4, the front and rear two deflection frames 10 can rotate freely, that is, the included angle formed by the front and rear two conveyor belts 12 can be adjusted freely. Thus, after the front and rear sides of different sizes of the display main body 32 are attached to the conveyor belt 12, the back of the display main body 32 can also effectively contact with the lifting wheels 4, so that the display main body 32 is stably supported and moves left and right.

[0028] In a case of this embodiment, in order to enable the lifting wheel 4 to descend adaptively after the display screen main body 32 lands on the lifting wheel 4, a buffer assembly 9 is provided on the annular support frame 1, and the buffer assembly 9 can achieve 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. A lifting frame 5 is provided at the upper end of the lifting rod 6. The front and rear ends of the lifting wheel 4 are rotatably connected to the lifting frame 5. A limiting plate 8 is provided at the lower end of the lifting rod 6. A lifting spring 7 is provided between the limiting plate 8 and the annular support frame 1. When the display screen main body 32 lands on the lifting wheel 4, the lifting spring 7 is stretched. 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 stably adhere to the lower surface of the display screen main body 32.

[0029] In a case of this embodiment, a synchronous rotation assembly 14 is provided inside the left side wall of the annular support frame 1. The synchronous rotation assembly 14 can drive the front and rear conveyor belts 12 to rotate forward or backward simultaneously, and at the same speed, so that the moving speeds and directions of the front and rear sides of the display screen main body 32 are the same. The synchronous rotation assembly 14 includes a first fixed block 21 provided in the middle of the left side wall of the annular support frame 1. A driving rod 22 arranged in the front and rear directions is rotatably connected to the middle of the first fixed block 21. Driving gears 26 are provided 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 provided at the end of the transmission shaft 25. And a driven gear 23 meshing with the transmission gear 24 is provided at the end of the left conveyor 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 between 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 continuously drive the front and rear conveyor rollers 11 to rotate effectively. And a first driving motor 20 is provided at the left end of the lower side of the annular support frame 1. The output shaft of the first driving motor 20 is fixedly connected to a first belt pulley 17. The first belt pulley 17 is connected to a second belt pulley 19 through a synchronous belt 18. The second belt pulley 19 is fixedly connected to the middle of the driving rod 22. Therefore, the first driving motor 20 makes the driving rod 22 rotate through belt transmission. The driving rod 22 makes the conveyor roller 11 rotate through the meshing transmission between the driving gear 26 and the transmission gear 24 and the meshing transmission between the transmission gear 24 and the driven gear 23, so that the front and rear conveyor belts 12 rotate synchronously. By means of mechanical transmission, it can be realized that only one first driving motor 20 can drive the front and rear conveyor belts 12 to rotate synchronously when the deflection frame 10 freely adjusts its angle. Compared with arranging motors on the front and rear sides respectively, the cost of one motor is lower. And mechanical transmission is more stable and simple than speed adjustment through program setting. No additional motor control unit is required. Only a signal for the first driving motor 20 to rotate at a constant speed needs to be given. The performance requirements for the first driving motor 20 are also lower.

[0030] In a case of this embodiment, a synchronous deflection assembly 15 is provided inside the right side wall of the annular support frame 1. The synchronous deflection assembly 15 can drive the front and rear deflection frames 10 to rotate simultaneously. The synchronous deflection assembly 15 includes a second fixed block 30 provided above the right side wall of the annular support frame 1. The second fixed block 30 is rotatably connected to the upper part of a vertically arranged lifting lead screw 29. The lower end of the lifting lead screw 29 is rotatably connected to the bottom of the annular support frame 1. And a middle part of a lifting plate 28 arranged in the front and rear direction is threadedly connected to the middle part of the lifting lead screw 29. The front and rear ends of the lifting plate 28 are rotatably connected to the upper ends of pull rods 27. The lower ends of the pull rods 27 are rotatably connected to the ends of the deflection frames 10. And a second driving motor 31 is provided on the upper part of the right side wall of the annular support frame 1. The output shaft of the second driving motor 31 is fixedly connected to the upper end of the lifting lead screw 29. Therefore, the second driving motor 31 drives the lifting plate 28 to move up and down through the lifting lead screw 29. The lifting plate 28 pulls the front and rear deflection frames 10 to rotate through the pull rods 27, achieving the effect of synchronously adjusting the inclination angles of the front and rear deflection frames 10.

[0031] During the implementation of this embodiment, ensure that the annular support frame 1 is placed horizontally on the ground, and cooperate the entire conveyor belt with the processing line of the display screen main body 32, and match with the transfer manipulator of the relevant display screen main body 32, so that the display screen main body 32 can enter from the left side of the conveyor belt and exit from the right side during the processing.

[0032] Parameter adjustment: According to the size parameters of the display screen main body 32 on the existing production line, judge the vertical angle between the front and rear deflection frames 10, start the second driving motor 31. The second driving motor 31 makes the angle between the front and rear deflection frames 10 change through the cooperation of the lifting lead screw 29 and the lifting plate 28. After the display screen main body 32 is horizontally placed on the two conveyor belts 12, the back of the display screen main body 32 will also effectively contact the lifting wheels 4. Stop the second driving motor 31. Under the action of the self-locking characteristic of the lead 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.

[0033] Conveyor processing, start the first drive motor 20. The first drive motor 20 makes the front and rear conveyor belts 12 rotate through a series of gear transmissions and belt transmissions. The manipulator on the assembly line grips the left and right sides of the display screen body 32, horizontally moves the display screen body 32 directly above the left side of the annular support frame 1, and releases the display screen body 32. The side edges on 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 undergo a certain deformation, so that the conveyor belt 12 can effectively fit on the front and rear side edges 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 protruding part on the back of the display screen body 32, the lifting wheel 4 will drop a little more. 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 manipulator transfers the display screen body 32 away again. Therefore, during 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 related processing equipment can perform a series of processing operations such as assembling, labeling, or detecting on the front of the display screen body 32.

[0034] The present invention is applicable to an LED display conveyor belt. By arranging inclined conveyor belts 12 on the front and rear sides of the annular support frame 1, the conveyor belts 12 can only fit and transport the straight side edges on the front and rear of the display screen body 32. The conveyor belts 12 avoid the protrusions 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 can better process the front of the display screen body 32.

[0035] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

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 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 lifting wheel rotates freely, a buffer assembly matched with the lifting wheel is arranged on the annular support frame, the buffer assembly comprises a lifting rod slidably connected with 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 limiting plate is arranged at one end of the lifting rod close to the ground, and a lifting spring is arranged between the limiting plate and the annular support frame to drive the lifting rod to move toward the side away from the ground; 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; The back of the display screen body is placed downward on the lifting wheels, and the front and rear sides of the display screen body fall on the conveyor belt. The contact position is separated from the conveyor roller area. The conveyor belt is deformed so that the conveyor belt fits the front and rear sides of the display screen body. The lower surface of the display screen body will fall on the lifting wheels. When the lifting wheels contact the raised part on the back of the display screen body, the lifting wheels drop.

2. 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.

3. The LED display conveyor belt according to claim 2, 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.

4. The LED display conveyor belt according to claim 3, 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.

5. The LED display conveyor belt according to claim 2, 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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