LED reflector lens feeder

Abstract

An LED reflection lens feeder, wherein the end of the conveying track of the vibrating disc is connected with a V-shaped groove, the middle line of the included angle of the V-shaped groove is inclined towards the middle part of the vibrating disc; the side wall of the V-shaped groove towards the middle part of the vibrating disc is provided with a poking rod, the poking rod and the side wall of the track form an acute included angle; the end of the V-shaped groove is connected with a falling track, the height of the falling track is lower than that of the V-shaped groove. The groove structure and its inclined state of the V-shaped groove make the reflection lens adhere to the inner side wall in a vertical posture, the reflection lens is poked up by the poking rod, the center of gravity of the reflection lens with the opening upwards does not exceed the end of the poking rod, so it falls in the posture with the opening upwards; the center of gravity of the reflection lens with the opening downwards exceeds the end of the poking rod, so it tilts towards the other side to make the opening upwards; therefore, all the reflection lenses can reach the conveying posture with the opening upwards, effectively overcoming the technical problem of directional conveying of the reflection lens, improving the directional overturning rate of the reflection lens and improving the batch production efficiency of the reflection lens.

Description

Technical Field

[0001] This invention belongs to the field of LED lens manufacturing technology, and specifically relates to an LED reflective lens feeder. Background Technology

[0002] Direct-lit TV light strips are mainly composed of PCB boards, LEDs, and lenses. The lenses are mainly divided into refractive lenses and reflective lenses. The former has a spherical convex surface for emitting light, while the latter has a horn-shaped concave surface. Reflective lenses, due to their larger light emission angle from their horn-shaped concave surface, are often used to manufacture high-end displays with larger screen sizes and thinner walls, and are currently in high demand in the TV industry chain.

[0003] To meet market demand, manufacturers are committed to improving the mass production efficiency of LED lenses. A key component is the vibratory feeder, which automates lens transport. Since the top of a refracting lens is convex, it can be oriented and rotated by feeding it into the V-groove in the vibratory feeder track, ensuring the light-emitting surface of the lens faces the same direction during transport. However, when oriented transporting reflective lenses, the top light-emitting surface is concave and flared. The reflective lens must be designed as a near-cylinder shape to fit the concave surface. Therefore, when the near-cylinder shape of the reflective lens enters the V-groove of the vibratory feeder, the vertical sidewalls of the near-cylinder engage with the bottom of the V-groove, providing stable support and hindering oriented rotation. This makes oriented transport of reflective lenses a common technical challenge. Furthermore, other transport technologies also struggle to achieve high oriented rotation rates when transporting reflective lenses due to their near-cylinder shape, forcing them to rely on repeated screening, which further restricts the mass production efficiency of reflective lenses. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides an LED reflective lens feeder that effectively overcomes the technical difficulties in directional conveying of reflective lenses, improves the directional flipping rate of reflective lenses, and thereby increases the mass production efficiency of reflective lenses.

[0005] This invention is implemented through the following technical solution: an LED reflective lens feeder, comprising a vibratory feeder, wherein the vibratory feeder has multiple parallel spiral tracks, the spiral tracks being used to transport reflective lenses, the starting end of the spiral tracks being a transport track, and the end of the transport track being connected to a V-shaped groove, the center line of the included angle of the V-shaped groove being inclined toward the center of the vibratory feeder; the side wall of the V-shaped groove facing the center of the vibratory feeder has a fixed end, the fixed end being connected to and extending a lever, the lever forming an acute angle with the side wall of its adjacent track; the end of the V-shaped groove is connected to a falling track, the falling track being lower than the V-shaped groove, the end of the falling track being connected to a screening track, the multiple parallel screening tracks having material leakage grooves between them; the end of the screening track is connected to a straight track.

[0006] Furthermore, on the V-groove cross-section, when the end of the undulating rod moves the reflective lens to tilt it up, the shape of the undulating rod ensures that the reflective lens is in a preset state, which is:

[0007] When the reflective lens is tilted up by the lever from an opening-up position, the bottom fulcrum of the reflective lens is located outside the center of gravity of the reflective lens;

[0008] When the reflective lens is tilted up by the lever from an opening-down position, the bottom fulcrum of the reflective lens is located inside the center of gravity of the reflective lens;

[0009] The inner side is located in the middle region of the vibratory plate, and the outer side is located in the outer edge region of the vibratory plate.

[0010] Furthermore, the connection between the V-shaped groove and the falling track is provided with a sloping transition surface.

[0011] Furthermore, on the cross-section of the V-groove, the angle between the line x connecting the end position of the actuating rod and the tip of the V-groove angle and the midline y of the V-groove angle is ±10°.

[0012] Furthermore, the angle between the actuating rod and the wall of the V-shaped groove is 25° to 35°.

[0013] Furthermore, the length of the actuating lever is 12mm ± 3mm.

[0014] Furthermore, the angle of the center line of the V-shaped groove towards the center of the vibratory plate is 4° to 6°.

[0015] The beneficial effects of this invention are as follows: This feeder utilizes the V-shaped groove structure and its inclined state, and cleverly takes advantage of the characteristic of the reflective lens's center of gravity shifting due to its open structure when in a vertical posture. This allows the conveyed reflective lens to be attached to its inner sidewall in a vertical posture. Then, the reflective lens is lifted by a lever to change its tilt angle. Due to the lever's shape design, when an upward-facing reflective lens is lifted, its center of gravity does not exceed the end of the lever, so it falls smoothly with its opening facing upward after leaving the lever. When a downward-facing reflective lens is lifted, its center of gravity exceeds the end of the lever, so it tilts to the other side and its opening faces upward. Therefore, all reflective lenses can be uniformly transported with their openings facing upward. This method has a high success rate of flipping and is efficient, effectively overcoming the technical difficulties of directional conveying of reflective lenses, improving the directional flipping rate of reflective lenses, and increasing the mass production efficiency of reflective lenses. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a structure according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the forward contact state according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the forward lifting state according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of a forward tilting state according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of a downward falling state according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the reverse contact state according to an embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the reverse dialing state according to an embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of the reverse overturning state according to an embodiment of the present invention;

[0024] Figure 9 This is a schematic diagram of the reverse falling state according to an embodiment of the present invention.

[0025] In the diagram: 10-Vibrating plate, 10a-Reflecting lens, 10b-Lens opening, 10c-Lens center of gravity, 10d-Bottom fulcrum, 11-Spiral track, 12-Conveying track, 13-V-groove, 13a-Transition slope, 14-Actuating rod, 14a-Fixed end, 15-Falling track, 16-Screening track, 17-Straight track. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0027] like Figure 1 As shown, an LED reflective lens feeder includes a vibratory feeder 10, wherein the vibratory feeder 10 is provided with a plurality of parallel spiral tracks 11, the spiral tracks 11 are used to transport reflective lenses 10a, the starting end of the spiral track 11 is a transport track 12, and the end of the transport track 12 is connected to a V-shaped groove 13, the center line of the included angle of the V-shaped groove 13 is inclined toward the middle of the vibratory feeder 10, thereby ensuring that the transported reflective lens 10a can be attached to the inner side wall of the V-shaped groove 13 and smoothly contact the actuating rod 14;

[0028] The V-groove 13 has a fixed end 14a on the side wall facing the middle of the vibratory plate 10. The fixed end 14a is connected to and leads out a lever 14. The lever 14 forms an acute angle with the adjacent track side wall. By designing the angle of the lever 14 and the difference in the center of gravity of the reflective lens 10a, the reflective lens 10a can be moved to the same orientation.

[0029] The V-shaped groove 13 is connected to a falling track 15 at its end. The falling track 15 is lower than the V-shaped groove 13. The falling track 15 is connected to a screening track 16 at its end. Multiple parallel screening tracks 16 are provided with material leakage channels between them. The screening track 16 is connected to a straight track 17 at its end. This ensures that after the reflective lens 10a passes through the V-shaped groove 13 and the toggle rod 14 to correct its orientation, it is received by the falling track 15, screened by the screening track 16 (materials with irregular shapes leaking out of the material leakage channels), and then moves to the straight track 17 for automated processing.

[0030] In this embodiment, when the reflective lens 10a is tilted up at the end of the wave rod on the cross-section of the V-groove 13, the shape of the wave rod 14 ensures that the reflective lens 10a is in a preset state, which is as follows:

[0031] When the reflecting lens 10a is tilted up by the lever 14 from its opening-up position, the bottom fulcrum 10d of the reflecting lens 10a is located outside the center of gravity of the reflecting lens 10a (e.g., Figure 2-3 (As shown), this helps the reflecting lens 10a keep its opening facing upwards;

[0032] When the reflecting lens 10a is tilted up by the lever 14 from its downward-facing position, the bottom fulcrum 10d of the reflecting lens 10a is located inside the center of gravity of the reflecting lens 10a (e.g., ...). Figure 6-7 As shown), this allows the reflecting lens 10a to be tilted to an upward-facing position.

[0033] In this embodiment, the connection between the V-shaped groove 13 and the falling track 15 is provided with a sloping transition slope 13a, which is beneficial for the reflective lens 10a to achieve flexible sliding when it falls to the falling track 15, preventing the impact of falling from causing a change in its posture, and further ensuring the uniform orientation of the opening of the reflective lens 10a.

[0034] In this embodiment, on the cross section of the V-groove 13, the angle between the line x connecting the end position of the toggle lever 14 and the tip of the angle of the V-groove 13 and the midline y of the angle of the V-groove 13 is ±10°. This is beneficial for the inclined toggle lever 14 to gradually move the reflective lens 10a to a vertical position and to achieve directional flipping by utilizing its center of gravity shift.

[0035] In this embodiment, the angle between the actuating rod 14 and the wall of the V-shaped groove 13 is 25° to 35°, and its upper and lower limits are determined according to the volume of the reflecting lens 10a. In this embodiment, the reflecting lens 10a adopts a standard volume, so the angle between the actuating rod 14 and the wall of the V-shaped groove 13 is 30°, thereby achieving a good contact and shifting effect on the reflecting lens 10a, so that it reaches a proper tilting posture, causing it to tilt in a directional manner according to the shift of its own center of gravity.

[0036] In this embodiment, the lever 14 is 12mm ± 3mm long, and its upper and lower limits are determined according to the volume of the reflective lens 10a. In this embodiment, the reflective lens 10a adopts a standard volume, so the lever 14 is 12mm long. With the coordination of the angle and length of the lever 14, the reflective lens 10a reaches the right tilt posture.

[0037] In this embodiment, the angle of the center line of the included angle of the V-groove 13 towards the center of the vibrating disk 10 is 4° to 6°. In this embodiment, the reflective lens 10a adopts a standard volume, so the angle of the center line of the included angle of the V-groove 13 towards the center of the vibrating disk 10 is 5°. This ensures that the reflective lens 10a, which has just entered the V-groove 13, can be attached to the inner side wall of the V-groove 13. At the same time, its inclination is only 5°. Therefore, when the lever 14 acts on the reflective lens 10a to tilt it towards the outer side wall of the V-groove 13, the small inclination of the V-groove 13 will not affect the reflective lens 10a from returning to the inner side wall, so that the reflective lens 10a can successfully fall into the falling track 15 with the opening facing upward.

[0038] The working process of this embodiment is as follows:

[0039] S1: As Figure 1As shown, a batch of reflective lenses 10a are placed at the bottom of the vibratory feeder 10. The vibratory feeder 10 is used to transport them to the conveying track 12 of the spiral track 11. When the conveying track 12 transports them to the V-groove 13, the reflective lenses 10a gradually enter a vertical posture and embed themselves in the V-groove 13 under the action of vibration to maintain stability. Furthermore, since the V-groove 13 is tilted towards the center, the reflective lenses 10a will be attached to the inner sidewall of the V-groove 13 for transmission.

[0040] S2: As Figure 1-2 As shown, the reflecting lens 10a enters the V-groove 13 with its opening facing upwards and is conveyed against the inner sidewall of the V-groove 13. When the reflecting lens 10a begins to contact the fixed end 14a at the head of the actuating rod 14, the tilting actuating rod 14 lifts the reflecting lens 10a in the conveyed state, forming a... Figure 2 In the state shown, as the conveying vibration continues, the vertically positioned reflecting lens 10a slides against the actuating lever 14, and the tilt of the actuating lever 14 causes the reflecting lens 10a to tilt to the right (direction depends on the direction). Figure 2 ), until it forms as Figure 3 In the state shown, the reflecting lens 10a has contacted the end of the lever 14 and is tilted to the right. Due to the design of the lens opening 10b of the reflecting lens 10a, the mass at the lens opening 10b is lighter, causing the lens's center of gravity 10c to shift towards the bottom of the lens itself. Therefore, as shown... Figure 3 As shown, at this time, the lens's center of gravity 10c is biased to the left of the lens's bottom end, and the bottom fulcrum 10d where the lens contacts the V-groove 13 is biased to the right. The lens's center of gravity 10c does not exceed the bottom fulcrum 10d. As the vibrating disk 10 continues to transport the lens, causing the reflecting lens 10a to detach from the support of the lever 14, most of the mass of the reflecting lens 10a is on the left side of its fulcrum, causing it to tilt onto the left sidewall of the V-groove 13 with its opening facing upwards, forming a shape as shown in the image. Figure 4 As shown, the lens 10a falls at an angle into the lower drop track 15 while being continuously transported. Simultaneously, a transition slope 13a provides a flexible ramp for the reflective lens 10a, preventing the impact of the fall from affecting the opening orientation of the reflective lens 10a and ensuring the stability of the opening's orientation. Figure 5 As shown, the reflecting lens 10a is positioned in an upward-facing conveying posture on the falling track 15;

[0041] like Figure 1 , Figure 6 As shown, the reflecting lens 10a enters the V-groove 13 with its opening facing downwards and is conveyed against the inner sidewall of the V-groove 13. When the reflecting lens 10a begins to contact the fixed end 14a at the head of the actuating rod 14, the tilting actuating rod 14 lifts the reflecting lens 10a in the conveyed state, forming a... Figure 6In the state shown, as the conveying vibration continues, the vertically positioned reflecting lens 10a slides against the actuating lever 14, and the tilt of the actuating lever 14 causes the reflecting lens 10a to tilt to the right (direction depends on the direction). Figure 6 ), until it forms as Figure 7 In the state shown, the reflecting lens 10a has contacted the end of the lever 14 and is tilted to the right. Due to the design of the lens opening 10b of the reflecting lens 10a, the mass at the lens opening 10b is lighter, causing the lens's center of gravity 10c to shift towards the bottom of the lens itself. Therefore, as shown... Figure 7 As shown, at this time, the center of gravity 10c of the lens is located on the right side of the bottom end of the lens, and the bottom fulcrum where the lens contacts the V-groove 13 is biased to the left. The center of gravity 10c of the lens has exceeded the bottom fulcrum 10d, so that most of the mass of the reflecting lens 10a is on the right side of its fulcrum, causing it to tilt onto the right side wall of the V-groove 13 with its opening facing upwards, forming a shape as shown in the image. Figure 8 As shown, the lens 10a falls at an angle into the lower drop track 15 while being continuously transported. Simultaneously, a transition slope 13a provides a flexible ramp for the reflective lens 10a, preventing the impact of the fall from affecting the opening orientation of the reflective lens 10a and ensuring the stability of the opening's orientation. Figure 9 As shown, the reflecting lens 10a is positioned in an upward-facing conveying posture on the falling track 15;

[0042] Therefore, through the above steps, under the combined action of the V-groove 13 and the lever 14, the material of the reflective lens 10a with its opening facing upward and its opening facing downward can be flipped to form a unified conveying posture with its opening facing upward. Since the lever 14 has a sturdy and durable structure and a low failure rate, this flipping method has a high success rate, high efficiency, and is easy to put into use. It effectively overcomes the technical difficulties of directional conveying of the reflective lens 10a, improves the directional flipping rate of the reflective lens 10a, and thereby improves the mass production efficiency of the reflective lens 10a.

[0043] S3: The lenses with uniform orientation are obtained from the falling track 15 on the screening track 16. The reflective lenses 10a with incorrect column posture are dropped and screened through the material leakage troughs on both sides of the screening track 16, further ensuring that the column postures of the reflective lenses 10a are arranged neatly, so that the reflective lenses 10a are transported to the straight track 17 with uniform opening posture and column posture for mass production.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. It should be understood that, for those skilled in the art, other equivalent substitutions may be made to the embodiments, and all such substitutions should be included within the protection scope of the present invention as long as they conform to the feature range defined in the claims.

Claims

1. An LED reflective lens feeder, comprising a vibratory feeder, characterized in that: The vibratory feeder has multiple parallel spiral tracks for transporting reflective lenses. The starting end of each spiral track is a transport track, and the end of each transport track is connected to a V-shaped groove. The center line of the included angle of the V-shaped groove is inclined towards the center of the vibratory feeder. A fixed end is located on the side wall of the V-shaped groove facing the center of the vibratory feeder. A lever is connected to and extends from the fixed end, forming an acute angle with the side wall of the adjacent track. A falling track is connected to the end of the V-shaped groove, and the height of the falling track is lower than that of the V-shaped groove. When the reflective lens is tilted up by the end of the lever on the V-groove cross section, the shape of the lever ensures that the reflective lens is in a preset state. The preset state is: When the reflective lens is tilted up by the lever from an opening-up position, the bottom fulcrum of the reflective lens is located outside the center of gravity of the reflective lens; When the reflective lens is tilted up by the lever from an opening-down position, the bottom fulcrum of the reflective lens is located inside the center of gravity of the reflective lens; The inner side is located in the middle region of the vibratory plate, and the outer side is located in the outer edge region of the vibratory plate.

2. The LED reflective lens feeder as described in claim 1, characterized in that: The end of the falling track is connected to a screening track, and multiple parallel screening tracks are provided with material leakage troughs between each other; the end of the screening track is connected to a straight track.

3. The LED reflective lens feeder as described in claim 1, characterized in that: The V-shaped groove and the falling track are connected by a sloping transition slope.

4. The LED reflective lens feeder as described in claim 1, characterized in that: On the cross-section of the V-groove, the angle between the line x connecting the end position of the actuating rod and the tip of the V-groove angle and the midline y of the V-groove angle is ±10°.

5. The LED reflective lens feeder as described in claim 1, characterized in that: The angle between the actuating rod and the wall of the V-shaped groove is 25° to 35°.

6. The LED reflective lens feeder as described in claim 1, characterized in that: The length of the lever is 12mm ± 3mm.

7. The LED reflective lens feeder as described in claim 1, characterized in that: The angle of the included angle of the V-groove is inclined towards the center of the vibratory plate at an angle of 4° to 6°.

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