LED material automatic feeding machine

Abstract

The application discloses an LED material automatic feeding machine, and relates to the technical field of LED feeding, which comprises a workbench, a feeding table fixedly connected to the workbench, an adjusting assembly arranged on the top of the feeding table, two motors fixedly connected to the feeding table and symmetrically arranged on the feeding plate, output shafts of the two motors, rotating tables fixedly connected to the output shafts, linear modules one arranged on the rotating tables, linear modules two connected to the linear modules one, moving tables arranged on the linear modules two, and feeding assemblies arranged on the moving tables. The adjusting assembly and the feeding assembly realize the effect of automatically receiving LED lamp beads, two rotating tables are alternately operated, the LED lamp beads to be welded are intermittently and continuously received by the feeding frames on the two rotating tables, the feeding efficiency during the welding of the LED lamp beads is improved, and the welding operation can be conveniently and uniformly performed after the feeding is completed, so that the welding efficiency of the LED lamp beads is improved.

Description

Technical Field

[0001] This invention relates to the field of LED feeding technology, and more specifically, to an automatic LED material feeder. Background Technology

[0002] After the LED beads are manufactured, they need to be precisely placed on the preset welding points of the lamp panel for subsequent welding processes. In the existing material feeding process, the mainstream feeding devices mainly include vibratory feeders combined with vacuum nozzles, and belt feeders. Among these, the combination of vibratory feeders and vacuum nozzles is currently the most widely used automated feeding method: the vibratory feeder first sorts and orients the bulk LED beads, ensuring they are output to the designated station in a uniform posture; then, the vacuum nozzles use negative pressure to pick up the LED beads one by one, move them to the corresponding welding position on the lamp panel, and release them. Belt feeders pre-embed the LED beads into fixed slots in a continuous belt, and transport them to the vicinity of the welding station through the stepping movement of the belt, where they are then transferred to the lamp panel by a robotic arm or a dedicated material handling mechanism.

[0003] Currently, the LED chip feeding process mostly adopts a single-chip feeding method, lacking an alternating and continuous chip receiving structure design. This results in significant intermittent waiting periods during the feeding process, making it impossible to achieve simultaneous feeding of batches of chips. The soldering station needs to frequently wait for the feeding to complete, slowing down the overall production pace. In addition, it has poor adaptability to different specifications of lamp panels. The position and number of feeding units in existing devices are usually fixed, and cannot be flexibly adjusted according to the number and shape of LED chips distributed on the lamp panel. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides an automatic LED material feeding machine.

[0005] The technical solution is as follows:

[0006] An automatic LED material feeding machine includes a worktable, a vibrating material distribution plate fixedly connected to the worktable, a feeding rack fixedly connected to the vibrating material distribution plate, a feeding plate fixedly connected to the end of the feeding rack away from the vibrating material distribution plate, a feeding platform fixedly connected to the worktable, and an adjustment component provided on the top of the feeding platform.

[0007] The adjustment assembly includes two motors fixedly connected to the feeding platform and symmetrically arranged about the feeding plate. The output shafts of the two motors are fixedly connected to a rotating table. Each rotating table is equipped with a linear module one. A linear module two is connected to the linear module one. A moving table is set on the linear module two. The running directions of the linear module one and the linear module two are perpendicular.

[0008] The moving platform is equipped with a feeding assembly, which includes multiple threaded holes arranged in a linear array on the moving platform. Each threaded hole is threaded with a threaded rod inside. Each threaded rod is rotatably connected to a limit frame on its outer surface. Each limit frame is inserted with a mounting bracket, and each mounting bracket is fixedly connected with a feeding frame.

[0009] Furthermore, the adjustment assembly also includes two stabilizing platforms fixedly connected to the feeding platform. The stabilizing platforms are circular in shape, and two motors are located at the center of the two stabilizing platforms respectively. Stabilizing rings are rotatably connected inside the two stabilizing platforms. Multiple ball bearings arranged in a circular array are rolled between the two stabilizing rings and the two stabilizing platforms. Stabilizing rods are fixedly connected to the upper surface of the two stabilizing rings, and the tops of the two stabilizing rods are fixedly connected to the lower surface of the two rotating platforms respectively.

[0010] Furthermore, a limiting hole is provided on the moving platform, the limiting frame slides in the limiting hole, and a knob is fixedly connected to the end of each threaded rod.

[0011] Furthermore, the limiting frame consists of two rotating rings and two crossbars. The two rotating rings of the limiting frame are rotatably connected to both ends of the threaded rod. Each threaded hole is symmetrically provided with a limiting hole above and below it. The two crossbars of the limiting frame slide inside the two limiting holes respectively.

[0012] Furthermore, each of the mounting brackets has a magnet fixedly connected to the side near the threaded rod, which is made of steel.

[0013] Furthermore, each of the mounting frames is equipped with a pneumatic control assembly, which includes a flexible gripper fixedly connected to the side of each mounting frame away from the limiting frame. The flexible gripper is located inside the feeding frame and is connected to an air pipe. An air pump is fixedly connected to the top of the moving table, and the end of the air pipe away from the mounting frame is fixedly connected to the air pump. The bottom surface of the feeding frame is open.

[0014] Based on the above, the beneficial effects of the automatic LED material feeding machine of the present invention are as follows:

[0015] The automatic LED bead receiving effect is achieved by adjusting the components and feeding components. At the same time, the two rotating tables work together alternately to intermittently and continuously receive the LED beads to be welded by the feeding frames on the two rotating tables, which improves the feeding efficiency of LED bead welding. After the feeding is completed, it is convenient to carry out the welding operation in a unified manner. Compared with the existing method of picking up LED beads one by one for welding, it can carry out batch welding of LED beads faster and improve the welding efficiency of LED beads.

[0016] By adjusting the position and quantity of the feeding frame, it can adapt to light panels with different numbers and positions of LED beads, improve the adaptability to different styles of light panels, and enable the feeding frame to accurately place the LED beads into the designated position on the light panel.

[0017] After the flexible grippers open, the LED beads fall downwards to the designated position on the lamp panel, achieving an automatic feeding effect. Feeding only occurs after the feeding frame moves above the welding position on the lamp panel, ensuring the accuracy of LED bead feeding and ensuring that all LED beads are fed to the target position at one time, thus improving the feeding efficiency of LED beads. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the overall components of the present invention;

[0019] Figure 2 This is a three-dimensional schematic diagram of the feeding table, motor, rotating table and other components of the present invention;

[0020] Figure 3 This is a cross-sectional perspective view of the stabilizing stage, stabilizing ring, ball bearings, and other components of the present invention.

[0021] Figure 4 This is a three-dimensional schematic diagram of the rotating platform, linear module one, linear module two, and other components of the present invention.

[0022] Figure 5 This is a three-dimensional schematic diagram of the linear module 2, the moving platform, and other components of the present invention;

[0023] Figure 6 This is a three-dimensional schematic diagram of the threaded hole, limiting hole, threaded rod, and other components of the present invention;

[0024] Figure 7 This is a three-dimensional schematic diagram of the mounting bracket, magnets, and other components of the present invention;

[0025] Figure 8 This is a three-dimensional schematic diagram of the feeding frame, flexible gripper, and other components of the present invention.

[0026] The reference numerals in the appendix of this invention are as follows:

[0027] 1. Workbench; 2. Vibrating feeder; 3. Feeding rack; 4. Feeding plate; 5. Feeding table;

[0028] 61. Motor; 62. Rotary table; 63. Stabilizer; 64. Stabilizer ring; 65. Ball bearing; 66. Stabilizer bar; 67. Linear module one; 68. Linear module two; 69. Moving table;

[0029] 71. Threaded hole; 72. Limiting hole; 73. Threaded rod; 74. Limiting bracket; 75. Knob; 76. Mounting bracket; 77. Magnet; 78. Feeding frame;

[0030] 81. Flexible gripper; 82. Air tube; 83. Air pump. Detailed Implementation

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0032] The embodiments provided by the present invention will be described in detail below:

[0033] like Figures 1 to 6 As shown, an automatic LED material feeding machine includes a workbench 1. A vibrating material distribution plate 2 is fixedly connected to the upper surface of the workbench 1. A feeding rack 3 is fixedly connected to the outlet of the vibrating material distribution plate 2. A feeding plate 4 is fixedly connected to the end of the feeding rack 3 away from the vibrating material distribution plate 2. A material trough is opened on the feeding plate 4. A feeding platform 5 is fixedly connected to the upper surface of the workbench 1. The feeding platform 5 is located next to the feeding plate 4. An adjustment component is provided on the top of the feeding platform 5.

[0034] The adjustment assembly includes two motors 61 fixedly connected to the upper surface of the feeding table 5. The two motors 61 are symmetrically arranged about the feeding plate 4. A rotating platform 62 is fixedly connected to the top of the output shaft of each motor 61. Two stabilizing platforms 63 are fixedly connected to the upper surface of the feeding table 5. The stabilizing platforms 63 are annular in shape. The two motors 61 are located at the center of the two stabilizing platforms 63. Annular grooves are formed inside the two stabilizing platforms 63, and stabilizing rings 64 are rotatably connected within these grooves. Multiple ball bearings 65 arranged in a circular array are rolled between the two stabilizing rings 64 and the two stabilizing platforms 63. Stabilizing rods 66 are fixedly connected to the upper surface of each of the two stabilizing rings 64, and the tops of the two stabilizing rods 66 are fixedly connected to the lower surface of each of the two rotating platforms 62. Each rotating platform 62 is equipped with a set of linear modules 67, with two modules in each set. A second linear module 68 is fixedly connected between each set of two linear modules 67, and a moving platform 69 is mounted on each of the two second linear modules 68.

[0035] It should be noted that the vibrating feeder 2 is existing equipment, mainly used to adjust the feeding posture of the LED beads. The LED beads are fed with the solder feet facing down and the light-emitting surface facing up. The feeder 3 is used to stabilize the feeding posture of the LED beads, ensuring that the LED beads maintain a fixed posture during feeding. The two rotating tables 62 are symmetrically arranged about the feeder plate 4. The rotating tables 62 provide movable space for the linear module 67. The function of the linear module 67 and the linear module 68 is to provide kinetic energy for linear motion. Both are existing technologies, specifically linear motors or motor + ball screw structures. The running trajectories of the linear module 67 and the linear module 68 are perpendicular. After the linear module 67 is started, it can drive the linear module 68 to perform linear motion. The linear module 68 can drive the moving table 69 to perform linear motion. Under the combined action of the linear modules 67 and 68, the moving table 69 can be driven to move in four directions (forward, backward, left, and right), thereby adjusting the moving table 69 to the required position.

[0036] like Figures 2 to 8 As shown, a feeding assembly is provided on the moving table 69. The feeding assembly includes multiple threaded holes 71 arranged in a linear array on the moving table 69. Two sets of limiting holes 72 arranged in a linear array are provided on the moving table 69. The two sets of limiting holes 72 are symmetrical about the threaded holes 71. A threaded rod 73 is threadedly connected inside each threaded hole 71. A limiting frame 74 is rotatably connected to the outer surface of each threaded rod 73. The limiting frame 74 consists of two rotating rings and two crossbars. The two rotating rings of the limiting frame 74 are rotatably connected to the outer surfaces of the two ends of the threaded rod 73. The two crossbars of the limiting frame 74 pass through the two symmetrical limiting holes 72 and can slide within the limiting holes 72. Each threaded rod 73 has a knob 75 fixedly connected to its end. Each limiting bracket 74 has a mounting bracket 76 inserted into its end away from the knob 75. Specifically, the mounting bracket 76 has slots corresponding to the two crossbars of the limiting bracket 74, allowing the crossbars of the limiting bracket 74 to be inserted into the slots, thus achieving the insertion of the mounting bracket 76 and the limiting bracket 74. A feeding frame 78 is fixedly installed on the side of each mounting bracket 76 away from the limiting bracket 74. The feeding frame 78 is used to receive LED beads falling from the feeding plate 4, with each feeding frame 78 receiving one LED bead.

[0037] Preferably, each mounting bracket 76 is fixedly connected to a magnet 77 on the side near the threaded rod 73. The threaded rod 73 is made of steel, and the magnet 77 can attract the threaded rod 73 to maintain stability when the mounting bracket 76 is inserted into the limiting bracket 74.

[0038] Specifically, a large number of LED beads are pre-loaded into the vibrating distribution plate 2. After the vibrating distribution plate 2 is started, the posture of the LED beads is adjusted to ensure that the LED beads maintain the same posture and flow towards the discharge port of the vibrating distribution plate 2 during the feeding process. Under the vibration adjustment of the vibrating distribution plate 2, the LED beads are transported to the feeding rack 3, and finally the LED beads transported to the feeding plate 4 are transported to the feeding plate 4. Then, the output shaft of motor 61 rotates, driving the rotating table 62 to rotate until it is positioned below the feeding frame 78, close to the feeding plate 4. Then, linear modules 67 and 68 are activated. Linear module 67 drives linear module 68 to move horizontally, which in turn drives the moving table 69 to move horizontally. Through the cooperation of linear modules 67 and 68, the moving table 69 moves horizontally in four directions (forward, backward, left, and right) until the feeding frame 78, which needs to receive the LED beads, is positioned directly below the feeding plate 4. The LED beads sliding down from the feeding plate 4 then fall into the feeding frame 78 below the feeding plate 4. Subsequently, under the simultaneous driving action of linear modules 67 and 68, the other feeding frames 78 on the same rotating table 62 move sequentially below the feeding plate 4, thus achieving the effect of automatically receiving the LED beads. After all the feeding frames 78 on the same rotating platform 62 have finished receiving LED beads, the motor 61 below the other rotating platform 62 starts, driving the other rotating platform 62 to rotate. This causes the feeding frames 78 on the other rotating platform 62 to move to the bottom of the feeding plate 4 to receive LED beads sequentially, until all the feeding frames 78 on the other rotating platform 62 have finished receiving LED beads. By using two rotating platforms 62, the two sets of feeding frames 78 operate alternately, intermittently and continuously receiving the LED beads to be welded by the feeding frames 78 on the two rotating platforms 62. This improves the feeding efficiency of LED beads during welding. After feeding is completed, it is convenient to perform subsequent unified welding operations. Compared with the existing method of picking up LED beads one by one for welding, it can perform batch welding of LED beads faster and improve the welding efficiency of LED beads.

[0039] It should be noted that, to stabilize the rotation of the rotating platform 62, the stabilizing rod 66 rotates synchronously during the rotation of the platform 62. The stabilizing rod 66 then drives the stabilizing ring 64 to rotate inside the stabilizing platform 63. During the rotation of the stabilizing ring 64, the rolling connection between the stabilizing ring 64 and the stabilizing platform 63 through the ball bearings 65 minimizes friction, resulting in smoother and more stable rotation of the stabilizing ring 64. By having the stabilizing rod 66 rotate synchronously with the rotating platform 62, and the stabilizing ring 64 consistently support the platform 62 through the stabilizing rod 66, the platform 62 maintains stability during rotation, ensuring stable operation even after prolonged use. This also prevents the platform 62 from tilting after extended operation, which could lead to inaccurate LED bead reception, thus improving the accuracy of LED bead reception.

[0040] Because the number and position of LED beads on the lamp panel vary, the position and number of feeding frames 78 can be adjusted. To adjust the position of the feeding frames 78, the operator holds and rotates knob 75. Knob 75 drives threaded rod 73 to rotate and move horizontally. During the movement of threaded rod 73, it drives limit frame 74 to move horizontally within limit hole 72. Limit frame 74 then drives mounting frame 76 to move horizontally, which in turn drives feeding frames 78 to move horizontally, thus adjusting the position of the feeding frames 78. This process is repeated to adjust the position of all feeding frames 78 one by one until all feeding frames 78 are adjusted to the predetermined position, ensuring that the arrangement of all feeding frames 78 matches the arrangement of the LED beads on the lamp panel. To adjust the number of feeding frames 78, when the number of LED beads on the light panel is small, the number of feeding frames 78 needs to be reduced accordingly. In this case, some feeding frames 78 can be removed. The operator can directly pull the mounting bracket 76, disengaging it from the limiting bracket 74. At this point, the magnet 77 is no longer magnetically attracted to the threaded rod 73. The feeding frame 78 can be removed by taking the mounting bracket 76 off the limiting bracket 74. When the feeding frame 78 needs to be reinstalled, the operator can insert the mounting bracket 76 into the limiting bracket 74, and then use the magnet 77 to magnetically attract the threaded rod 73, ensuring a secure connection between the mounting bracket 76 and the threaded rod 73, thus completing the installation of the feeding frame 78. By adjusting the position and number of feeding frames 78, it can accommodate light panels with different numbers and positions of LED beads, improving adaptability to different light panel styles and enabling the feeding frames 78 to accurately place the LED beads at designated positions on the light panel.

[0041] It should be noted that the above-mentioned adjustment of the number and position of the feeding frame 78 can be arbitrarily adjusted according to the arrangement of the LED beads, and the feeding frame 78 can be adjusted to a straight line arrangement, an arc arrangement, or other shapes. The adjustment is highly flexible and improves the applicability of this feeding machine.

[0042] like Figures 1 to 8 As shown, each mounting bracket 76 is equipped with a pneumatic control component for controlling the delivery of LED beads. The pneumatic control component includes a flexible gripper 81 fixedly connected to the side of each mounting bracket 76 away from the limiting frame 74. The number of flexible grippers 81 corresponds to the number of mounting brackets 76. Each feeding frame 78 has one flexible gripper 81 inside. The flexible gripper 81 is connected to an air pipe 82. An air pump 83 is fixedly connected to the top of the moving table 69. The ends of all air pipes 82 away from the mounting bracket 76 are fixedly connected to the air pump 83. The bottom surface of the feeding frame 78 is open, and the interior of the feeding frame 78 has sufficient space for the flexible grippers 81 to move.

[0043] It should be noted that when the flexible gripper 81 is inflated, its two gripping arms open to the sides, and the space between the two gripping arms after they open allows the LED beads to pass through.

[0044] After the LED beads fall into the feeding frame 78, they will be located on the top surface of the two clamping arms of the flexible gripper 81 and in the middle of the two clamping arms. When all the feeding frames 78 have LED beads, the output shaft of the control motor 61 will rotate. The output shaft of the motor 61 will drive the rotating table 62 to rotate. Then the rotating table 62 will move the feeding component on it to the top of the lamp plate to be welded. Then the air pump 83 will start and supply gas into the flexible gripper 81 through the air pipe 82. After the flexible gripper 81 is ventilated, its clamping arms will open. Then the LED beads on the top surface of the flexible gripper 81 will continue to fall downward. Since the bottom surface of the feeding frame 78 is open, the LED beads will fall downward onto the lamp plate, achieving the effect of automatic feeding. The above-mentioned feeding process is carried out after the feeding frame 78 moves to above the lamp panel welding position. This ensures the accuracy of LED bead feeding and ensures that all LED beads are fed to the target position at one time, thereby improving the feeding efficiency of LED beads.

[0045] It should be noted that the location of the lamp plate can be between the two rotating tables 62 and on the side away from the feeding plate 4, and the lamp plate can be kept at the same horizontal height as the rotating table 62. This feeding machine can be used with an external lamp plate welding device to weld the LED beads that fall on the lamp plate.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An LED material automatic feeding machine, comprising a workbench (1), a vibrating distribution tray (2) is fixedly connected to the workbench (1), a feeding frame (3) is fixedly connected to the vibrating distribution tray (2), and a feeding plate (4) is fixedly connected to one end of the feeding frame (3) away from the vibrating distribution tray (2), characterized in that, The workbench (1) is fixedly connected with a feeding table (5), and the top of the feeding table (5) is provided with an adjusting assembly; The adjusting assembly comprises two motors (61) fixedly connected on the feeding table (5) and symmetrically arranged relative to the feeding plate (4), the output shafts of the two motors (61) are fixedly connected with rotating tables (62), the two rotating tables (62) are provided with linear modules (67), the linear modules (67) are connected with linear modules (68), the linear modules (68) are provided with moving tables (69), and the running directions of the linear modules (67) and the linear modules (68) are perpendicular. A feeding assembly is arranged on the moving table (69), the feeding assembly comprises a plurality of threaded holes (71) arranged in a linear array on the moving table (69), each threaded hole (71) is threadedly connected with a threaded rod (73), the outer surface of each threaded rod (73) is rotatably connected with a limiting frame (74), each limiting frame (74) is inserted with a mounting frame (76), and each mounting frame (76) is fixedly connected with a feeding frame (78); A limiting hole (72) is formed in the moving table (69), the limiting frame (74) slides in the limiting hole (72), and the end of each threaded rod (73) is fixedly connected with a knob (75); The limiting frame (74) is composed of two rotating rings and two cross bars, the two rotating rings of the limiting frame (74) are rotatably connected at the two ends of the threaded rod (73), one limiting hole (72) is symmetrically arranged above and below each threaded hole (71), and the two cross bars of the limiting frame (74) slide in the two limiting holes (72) respectively; One side of each mounting frame (76) close to the threaded rod (73) is fixedly connected with a magnet (77), and the threaded rod (73) is made of steel; Each mounting frame (76) is provided with an air control assembly, the air control assembly comprises a flexible clamp jaw (81) fixedly connected to each mounting frame (76) away from the limiting frame (74), the flexible clamp jaw (81) is located in the feeding frame (78), the flexible clamp jaw (81) is connected with an air pipe (82), the top of the moving table (69) is fixedly connected with an air pump (83), one end of the air pipe (82) away from the mounting frame (76) is fixedly connected with the air pump (83), and the bottom surface of the feeding frame (78) is open.

2. The LED material automatic feeding machine according to claim 1, characterized in that, The adjusting assembly further comprises two stabilizing tables (63) fixedly connected to the feeding table (5), the stabilizing tables (63) are annular, the two motors (61) are respectively located at the center positions of the two stabilizing tables (63), the two stabilizing tables (63) are rotatably connected with stabilizing rings (64) in the interiors thereof, a plurality of rolling balls (65) are arranged in a ring array between the two stabilizing rings (64) and the two stabilizing tables (63), the upper surfaces of the two stabilizing rings (64) are fixedly connected with stabilizing rods (66), and the tops of the two stabilizing rods (66) are fixedly connected with the lower surfaces of the two rotating tables (62).

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