Feeding detection mechanism of LED chip mounter

Abstract

The utility model relates to the technical field of LED chip mounting, in particular to a feeding detection mechanism of an LED chip mounter, which comprises a feeding motor, a lifting rotary divider and a turntable. A plurality of feeding suction nozzles are arranged on the rotary table in the circumferential direction; the feeding assembly, the first positioning assembly, the first electrical detection assembly, the first NG assembly, the correction assembly, the second positioning assembly, the second electrical detection assembly, the discharging station and the second NG assembly are sequentially arranged. According to the utility model, the feeding assembly, the first positioning assembly, the first electrical detection assembly, the first NG assembly, the correction assembly, the second positioning assembly, the second electrical detection assembly, the discharging station and the second NG assembly are arranged, so that positive and negative electrode detection can be carried out before the SMD LED is subjected to surface mounting, and the positive and negative electrode directions of the SMD LED are prevented from being reversed; and in addition, all the assemblies are arranged around the periphery of the rotating disc, feeding detection can be conducted on multiple SMD LEDs at the same time, the working efficiency is improved, and space can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED chip mounting, and particularly relates to a feeding detection mechanism of an LED chip mounter. Background Art

[0002] With the rapid development of LED technology, LED chip mounting has become one of the key components widely used in the modern electronic assembly industry. LED chips are mainly applied in various display screens, lighting devices and other electronic products. Their small size and high luminous efficiency make them extremely popular in the market.

[0003] In the production and assembly process of LED chips, automated assembly technology is usually adopted to improve efficiency and accuracy. This process involves using a vacuum nozzle to adsorb surface-mounted LEDs from a hopper and accurately place them at predetermined positions on a circuit board. During the adsorption process, due to the small size and light weight of surface-mounted LEDs, it is very easy to reverse the positions of the positive and negative electrodes of the LED due to incorrect adsorption direction. If the positions of the positive and negative electrodes of the LED are incorrect, it will directly affect the function of the circuit, resulting in the circuit board being unable to work properly or reducing the reliability of the product. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a feeding detection mechanism of an LED chip mounter for the above deficiencies in the prior art.

[0005] The purpose of the utility model is achieved through the following technical solutions: a feeding detection mechanism of an LED chip mounter, including a feeding motor, a lifting and rotating divider, and a turntable; the feeding motor is connected to the input end of the lifting and rotating divider; the turntable is connected to the output end of the lifting and rotating divider;

[0006] A plurality of feeding nozzles are arranged along the circumference of the turntable; the feeding detection mechanism of the LED chip mounter further includes a feeding component, a first positioning component, a first electrical property detection component, a first NG component, a correction component, a second positioning component, a second electrical property detection component, a blanking station, and a second NG component, which are arranged in sequence along the rotation direction of the turntable.

[0007] The utility model is further arranged such that the feeding component includes a hopper, a vibrating bowl, and a linear vibratory feeder; the input end of the vibrating bowl is connected to the hopper; the output end of the vibrating bowl is connected to the input end of the linear vibratory feeder; the output end of the linear vibratory feeder is arranged at the bottom of the feeding nozzle.

[0008] The present utility model is further configured such that both the first positioning assembly and the second positioning assembly include a positioning seat, a positioning motor disposed on the positioning seat, a circular ring seat fixedly connected to the positioning motor, and a cam rotatably disposed at the center of the circular ring seat; the cam is connected to the output end of the positioning motor; a protruding portion is provided on the outer periphery of the cam; a positioning slider is slidably disposed on the circular ring seat in the diameter direction; a positioning member is provided on the positioning slider; and the positioning slider abuts against the outer periphery of the cam.

[0009] The present utility model is further configured such that a positioning roller is rotatably provided on the positioning slider; and the positioning slider abuts against the outer periphery of the cam through the positioning roller.

[0010] The present utility model is further configured such that the positioning slider includes a first slider and a second slider disposed opposite to each other, and a third slider and a fourth slider disposed opposite to each other; a first positioning member, a second positioning member, a third positioning member, and a fourth positioning member are respectively provided on the first slider, the second slider, the third slider, and the fourth slider; the number of the protruding portions is four; and the four protruding portions are circumferentially distributed at equal angles along the circumference of the cam.

[0011] The present utility model is further configured such that a first accommodation groove is provided on the outer wall of the circular ring seat in the circumferential direction; the positioning slider slidably penetrates through the circular ring seat; a second accommodation groove is provided at one end of the positioning slider away from the cam; and an elastic ring is provided between the first accommodation groove and the second accommodation groove.

[0012] The present utility model is further configured such that both the first electrical detection assembly and the second electrical detection assembly include a detection seat, a first detection arm disposed on the detection seat, a second detection arm disposed on the detection seat, and a positive and negative detection module disposed on the detection seat; a detection groove for placing a patch LED is formed between the first detection arm and the second detection arm.

[0013] The present utility model is further configured such that both the first NG assembly and the second NG assembly include an NG seat and an NG guide block disposed on the NG seat; and an NG guide groove is provided through the NG guide block.

[0014] The present utility model is further configured such that the correction assembly includes a correction seat, a correction motor disposed on the correction seat, a correction driving wheel connected to the output end of the correction motor, a correction driven wheel rotatably disposed on the correction seat, and a correction timing belt disposed between the correction driving wheel and the correction driven wheel; the correction assembly further includes a correction turntable; the correction turntable is coaxially driven with the correction driven wheel; and a correction groove for placing a patch LED is provided at the top of the correction turntable.

[0015] Advantages of the utility model: By providing a feeding component, a first positioning component, a first electrical property detection component, a first NG component, a correction component, a second positioning component, a second electrical property detection component, a blanking station and a second NG component, the utility model can detect the positive and negative poles of the surface-mounted LED before surface mounting, preventing the reverse placement of the positive and negative poles of the surface-mounted LED. In addition, by arranging the feeding component, the first positioning component, the first electrical property detection component, the first NG component, the correction component, the second positioning component, the second electrical property detection component, the blanking station and the second NG component around the outer periphery of the turntable, multiple surface-mounted LEDs can be fed and detected simultaneously, improving work efficiency and saving space. Description of the Drawings

[0016] The utility model will be further described with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation to the utility model. For those of ordinary skill in the art, other drawings can also be obtained based on the following drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of the utility model;

[0018] Figure 2 is a schematic structural diagram of another perspective of the utility model;

[0019] Figure 3 is a schematic structural diagram of the first electrical property detection component and the second electrical property detection component of the utility model;

[0020] Figure 4 is a schematic structural diagram of the first NG component and the second NG component of the utility model;

[0021] Figure 5 is a schematic structural diagram of the correction component of the utility model;

[0022] Figure 6 is a cross-sectional view of the correction component of the utility model;

[0023] Figure 7 is a schematic structural diagram of the first positioning component and the second positioning component of the utility model;

[0024] Figure 8 is a cross-sectional view of the first positioning component and the second positioning component of the utility model after hiding the positioning seat;

[0025] Figure 9 is a schematic structural diagram of the cooperation of the cam, the slider and the positioning member of the utility model;

[0026] Wherein: 11, loading motor; 12, lifting rotary divider; 13, turntable; 14, loading suction nozzle; 21, first positioning component; 22, second positioning component; 31, first electrical detection component; 32, second electrical detection component; 33, detection seat; 34, first detection arm; 35, second detection arm; 36, detection groove; 41, first NG component; 42, second NG component; 43, NG seat; 44, NG guide block; 45, NG guide groove; 5, correction component; 51, correction seat; 52, correction motor; 53, correction driving wheel; 54, correction driven wheel; 55, correction timing belt; 56, correction turntable; 57, correction groove; 6, unloading station; 71, hopper; 72, vibrating bowl feeder; 73, linear vibratory feeder; 8, positioning seat; 82, positioning motor; 83, ring seat; 84, first accommodating groove; 85, elastic ring; 86, cam; 87, protrusion; 9, positioning roller; 91, first slider; 92, second slider; 93, third slider; 94, fourth slider; 95, first positioning member; 96, second positioning member; 97, third positioning member; 98, fourth positioning member; 99, second accommodating groove. Specific embodiments

[0027] The present utility model will be further described in conjunction with the following embodiments.

[0028] As Figures 1 to 9 can be seen, the loading and detection mechanism of an LED mounter described in this embodiment includes a loading motor 11, a lifting rotary divider 12, and a turntable 13; the loading motor 11 is connected to the input end of the lifting rotary divider 12; the turntable 13 is connected to the output end of the lifting rotary divider 12;

[0029] A plurality of loading suction nozzles 14 are provided on the turntable 13 along the circumferential direction; the loading and detection mechanism of the LED mounter further includes a loading component, a first positioning component 21, a first electrical detection component 31, a first NG component 41, a correction component 5, a second positioning component 22, a second electrical detection component 32, an unloading station 6, and a second NG component 42 arranged in sequence along the rotation direction of the turntable 13.

[0030] Specifically, when the loading and detection mechanism of the LED mounter in this embodiment is in use, first, the SMD LEDs are placed on the loading component. Under the action of the loading motor 11 and the lifting rotary indexer 12, the loading suction nozzle 14 is driven to descend to adsorb the SMD LEDs on the loading component and then move them to the first positioning component 21. The first positioning component 21 positions the SMD LEDs in the center of the middle part of the loading suction nozzle 14. Then, the loading suction nozzle 14 moves the SMD LEDs to the first electrical detection component 31 for positive and negative pole detection. If the SMD LED cannot conduct normally, it is transported to the first NG component 41 for discharging. If the SMD LED conducts normally, the loading suction nozzle 14 moves the SMD LED to the correction component 5. The correction component 5 rotates the SMD LED with inaccurate positive and negative pole positions by 180 degrees. Then, the loading suction nozzle 14 moves the SMD LED to the second electrical detection component 32 for the second positive and negative pole detection. If the positive and negative poles are detected correctly, the loading suction nozzle 14 moves the SMD LED to the unloading station 6 for unloading. If the positive and negative poles are detected incorrectly, the loading suction nozzle 14 moves the SMD LED to the second NG component 42 for discharging.

[0031] In this embodiment, by providing a loading component, a first positioning component 21, a first electrical detection component 31, a first NG component 41, a correction component 5, a second positioning component 22, a second electrical detection component 32, an unloading station 6, and a second NG component 42, it is possible to perform positive and negative pole detection on the SMD LEDs before chip mounting, preventing the SMD LEDs from being placed with the wrong positive and negative pole directions. In addition, by arranging the loading component, the first positioning component 21, the first electrical detection component 31, the first NG component 41, the correction component 5, the second positioning component 22, the second electrical detection component 32, the unloading station 6, and the second NG component 42 around the outer periphery of the turntable 13, it is possible to perform loading and detection on multiple SMD LEDs simultaneously, improving work efficiency and saving space.

[0032] The loading component of the loading and detection mechanism of the LED mounter in this embodiment includes a hopper 71, a vibrating bowl 72, and a linear vibratory feeder 73; the input end of the vibrating bowl 72 is connected to the hopper 71; the output end of the vibrating bowl 72 is connected to the input end of the linear vibratory feeder 73; the output end of the linear vibratory feeder 73 is arranged at the bottom of the loading suction nozzle 14.

[0033] Specifically, through the above settings, the SMD LEDs are placed in the hopper 71, transmitted to the vibrating bowl 72 through the hopper 71, the vibrating bowl 72 vibrates and feeds the SMD LEDs, and the SMD LEDs are sequentially transmitted to the bottom of the loading suction nozzle 14 through the linear vibratory feeder 73.

[0034] The feeding detection mechanism of a LED placement machine described in this embodiment, the first positioning component 21 and the second positioning component 22 both include a positioning seat 8, a positioning motor 82 arranged on the positioning seat 8, a circular ring seat 83 fixedly connected to the positioning motor 82, and a cam 86 rotatably arranged at the center of the circular ring seat 83; the cam 86 is connected to the output end of the positioning motor 82; a protrusion 87 is arranged on the outer periphery of the cam 86; a positioning slider is slidably arranged along the diameter direction of the circular ring seat 83; the positioning slider is provided with a positioning piece; the positioning slider abuts against the outer periphery of the cam 86. The feeding detection mechanism of a LED placement machine described in this embodiment, the positioning slider is rotatably provided with a positioning roller 9; the positioning slider abuts against the outer periphery of the cam 86 through the positioning roller 9. In the feeding detection mechanism of an LED placement machine described in this embodiment, the positioning slider includes a first slider 91 and a second slider 92 arranged opposite to each other, and a third slider 93 and a fourth slider 94 arranged opposite to each other; the first slider 91, the second slider 92, the third slider 93 and the fourth slider 94 are respectively provided with a first positioning member 95, a second positioning member 96, a third positioning member 97 and a fourth positioning member 98; the number of the protrusions 87 is four; the four protrusions 87 are distributed at equal angles along the circumference of the cam 86. In the feeding detection mechanism of an LED placement machine described in this embodiment, the outer wall of the circular ring seat 83 is provided with a first accommodating groove 84 along the circumference; the positioning slider is slidably penetrated in the circular ring seat 83; the end of the positioning slider away from the cam 86 is provided with a second accommodating groove 99; an elastic ring 85 is provided between the first accommodating groove 84 and the second accommodating groove 99. The first positioning member 95, the second positioning member 96, the third positioning member 97 and the fourth positioning member 98 are all provided at the bottom of the feeding suction nozzle 14.

[0035] Specifically, since the suction port of the loading suction nozzle 14 is relatively large, it cannot be guaranteed that the loading suction nozzle 14 can adsorb the chip LED at the center at the output end of the direct vibration feeder 73 and the correction component 5. Therefore, when the loading suction nozzle 14 moves the chip LED to the first positioning component 21 and the second positioning component 22, under the action of the loading motor 11 and the lifting and rotating divider 12, the loading suction nozzle 14 is driven to descend, so that the chip LED moves to between the first positioning member 95, the second positioning member 96, the third positioning member 97 and the fourth positioning member 98, and then the positioning motor 82 is started. The positioning motor 82 drives the cam 86 to rotate, so that the protrusion 87 is staggered with the positioning roller 9. Under the resetting action of the elastic ring 85, the first positioning member 95, the second positioning member 96, the third positioning member 97 and the fourth positioning member 98 are close to each other, thereby pushing the chip LED to the center of the loading suction nozzle 14.

[0036] The feeding detection mechanism of an LED mounter according to this embodiment. The first electrical detection component 31 and the second electrical detection component 32 both include a detection base 33, a first detection arm 34 provided on the detection base 33, a second detection arm 35 provided on the detection base 33, and a positive and negative detection module provided on the detection base 33. A detection slot 36 for placing the surface-mounted LED is formed between the first detection arm 34 and the second detection arm 35. The positive and negative detection module is an existing positive and negative detection circuit. The detection slot 36 of the LED is provided at the bottom of the feeding nozzle 14.

[0037] Specifically, for the feeding detection mechanism of the LED mounter according to this embodiment, due to the action of the first positioning component 21 and the second positioning component 22, the surface-mounted LED is moved to the center of the feeding nozzle 14. Therefore, when the feeding motor 11 and the lifting and rotating divider 12 move the feeding nozzle 14 to the positions of the first electrical detection component 31 and the second electrical detection component 32, the feeding nozzle 14 can accurately place the surface-mounted LED in the detection slot 36, so as to perform power-on detection and positive and negative detection on the surface-mounted LED.

[0038] The feeding detection mechanism of an LED mounter according to this embodiment. The first NG component 41 and the second NG component 42 both include an NG base 43 and an NG guide block 44 provided on the NG base 43. The NG guide block 44 is provided with an NG guide groove 45. The NG guide block 44 is provided at the bottom of the feeding nozzle 14.

[0039] The feeding detection mechanism of an LED mounter according to this embodiment. The correction component 5 includes a correction base 51, a correction motor 52 provided on the correction base 51, a correction driving wheel 53 connected to the output end of the correction motor 52, a correction driven wheel 54 rotatably provided on the correction base 51, and a correction timing belt 55 provided between the correction driving wheel 53 and the correction driven wheel 54. The correction component 5 further includes a correction turntable 56. The correction turntable 56 is coaxially driven with the correction driven wheel 54. A correction slot 57 for placing the surface-mounted LED is provided at the top of the correction turntable 56.

[0040] Specifically, for the loading detection mechanism of the LED mounter in this embodiment, when the loading motor 11 and the lifting rotary divider 12 move the loading suction nozzle 14 to the position of the correction assembly 5, the loading suction nozzle 14 places the SMD LED in the correction groove 57. Then, the correction motor 52 is started. The correction motor 52 drives the correction turntable 56 to rotate through the correction driving wheel 53, the correction synchronous belt 55 and the correction driven wheel 54, so that the SMD LED with incorrect positive and negative positions can be rotated by 180 degrees, and then adsorbed again by the loading suction nozzle 14. Since the size of the correction groove 57 is slightly larger than the SMD LED, it is necessary to set the second positioning assembly 22 to place the SMD LED at the exact center of the loading suction nozzle 14.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A feeding detection mechanism for an LED placement machine, characterized in that: It includes a feeding motor, a lifting and rotating divider and a turntable; the feeding motor is connected to the input end of the lifting and rotating divider; the turntable is connected to the output end of the lifting and rotating divider; The turntable is provided with a plurality of feeding nozzles along the circumference; the feeding detection mechanism of the LED placement machine also includes a feeding component, a first positioning component, a first electrical detection component, a first NG component, a correction component, a second positioning component, a second electrical detection component, a feeding station and a second NG component which are sequentially arranged along the rotation direction of the turntable.

2. The feeding detection mechanism of an LED placement machine according to claim 1, characterized in that: The feeding assembly includes a hopper, a vibration plate and a direct vibration feeder; the input end of the vibration plate is connected to the hopper; the output end of the vibration plate is connected to the input end of the direct vibration feeder; the output end of the direct vibration feeder is arranged at the bottom of the feeding nozzle.

3. The feeding detection mechanism of an LED placement machine according to claim 1, characterized in that: The first positioning assembly and the second positioning assembly both include a positioning seat, a positioning motor arranged on the positioning seat, a circular ring seat fixedly connected to the positioning motor, and a cam rotatably arranged at the center of the circular ring seat; the cam is connected to the output end of the positioning motor; a protrusion is arranged on the outer periphery of the cam; a positioning slider is arranged on the circular ring seat for sliding along the diameter direction; the positioning slider is provided with a positioning piece; the positioning slider abuts against the outer periphery of the cam.

4. The feeding detection mechanism of an LED placement machine according to claim 3, characterized in that: The positioning slider is rotatably provided with a positioning roller; the positioning slider abuts against the outer periphery of the cam through the positioning roller.

5. The feeding detection mechanism of an LED placement machine according to claim 3, characterized in that: The positioning slider includes a first slider and a second slider that are arranged opposite to each other, and a third slider and a fourth slider that are arranged opposite to each other; the first slider, the second slider, the third slider and the fourth slider are respectively provided with a first positioning member, a second positioning member, a third positioning member and a fourth positioning member; the number of the protrusions is four; the four protrusions are distributed at equal angles along the circumference of the cam.

6. The feeding detection mechanism of an LED placement machine according to claim 3, characterized in that: The outer wall of the annular seat is provided with a first accommodating groove along the circumferential direction; the positioning slider is slidably penetrated through the annular seat; a second accommodating groove is provided at one end of the positioning slider away from the cam; and an elastic ring is provided between the first accommodating groove and the second accommodating groove.

7. The feeding detection mechanism of an LED placement machine according to claim 1, characterized in that: The first electrical detection component and the second electrical detection component both include a detection seat, a first detection arm arranged on the detection seat, a second detection arm arranged on the detection seat, and a positive and negative pole detection module arranged on the detection seat; a detection groove for placing the patch LED is formed between the first detection arm and the second detection arm.

8. The feeding detection mechanism of an LED placement machine according to claim 1, characterized in that: The first NG component and the second NG component both include an NG seat and an NG guide block disposed on the NG seat; the NG guide block is penetrated by an NG guide groove.

9. The feeding detection mechanism of an LED placement machine according to claim 1, characterized in that: The correction component includes a correction seat, a correction motor arranged on the correction seat, a correction driving wheel connected to the output end of the correction motor, a correction driven wheel rotatably arranged on the correction seat, and a correction synchronous belt arranged between the correction driving wheel and the correction driven wheel; the correction component also includes a correction turntable; the correction turntable and the correction driven wheel are coaxially driven; the top of the correction turntable is provided with a correction groove for placing the SMD LED.

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