FPC-COB flexible lamp strip, bending degree detection device and production method

Abstract

The invention relates to the technical field of flexible lamp strips, and discloses an FPC-COB flexible lamp strip, a bending degree detection device and a production method.The FPC-COB flexible lamp strip bending degree detection device comprises an installation shell and further comprises a winding wheel connected to the interior in a sliding mode, a transmission belt drives a concave-convex rotating wheel to rotate randomly when rotating, and the transmission belt drives the concave-convex rotating wheel to rotate randomly when rotating; when the pusher stretches, the transmission strip set is pushed through the concave-convex rotating wheel, and therefore the heights of the first upper pressing roller, the first lower pressing roller, the second upper pressing roller and the second lower pressing roller are changed to conduct bending detection on the soft lamp strip. Through rotation of the transmission belt, the concave-convex rotating wheels are in a random rotation state due to inertia after being driven, so that the distances between the concave-convex rotating wheels and the transmission strip group change randomly, it is guaranteed that different positions of each soft lamp strip can be detected at random angles, the weakness of the lamp strip at a specific bending angle can be rapidly recognized, and the detection accuracy is improved. Therefore, adjustment and optimization are carried out, and the effective and random detection effect during automatic production is met.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible light strips, and in particular to an FPC-COB flexible light strip, a bending degree detection device and a production method. Background Art

[0002] As a lighting product with high flexibility and bendability, flexible light strips have increasingly stringent requirements for their bending performance as product application scenarios diversify. As a result, manufacturers will conduct bending degree tests during initial production, and will also conduct random sampling bending degree tests during production to determine whether product quality needs to be improved or optimized.

[0003] However, in the prior art, when testing the flexible light strip, a rotating stick that can move up and down is usually used to perform extrusion detection on the flexible light strip. The limitation of this method is that it can only test the bending degree of a single position of the light strip, while in the actual use of the flexible light strip, it will face a variety of different bending angles, and will be bent multiple times at similar positions, so that different parts of the flexible light strip are subjected to different degrees of bending, and the bending is S-shaped or M-shaped, etc., and a single rotating stick can only perform performance testing on the bending degree of a single position, and it is impossible to switch between different angles during the test. The reference value of the test result is limited, and it is impossible to fully reflect the various bending conditions encountered by the light strip in actual use. Secondly, the existing detection device is too single in the position where the bending angle is formed, and it is impossible to perform different tests on multiple positions on the light strip at the same time. Testing at the same angle leads to one-sided test results. In order to make up for this defect, many manufacturers will rotate and set up multiple rotating sticks, and use the preset angle of the controller for testing. However, flexible light strips have different shapes during use. Since they can only rely on the pre-designed angle of the equipment for testing, they cannot get rid of the constraints of the preset angle, causing the detection process to become rigid and patterned, and unable to simulate the random bending that may occur in actual use. Although this preset angle testing method guarantees the repeatability of the test to a certain extent, it also loses the effect of comprehensively evaluating product performance, making the detection device lack of randomness during the test process, and still unable to comprehensively and accurately evaluate the various bending situations that may be encountered in actual use of the light strip, and unable to accurately obtain information on whether optimization is needed, making it difficult for the product to provide strong quality assurance.

[0004] To this end, an FPC-COB flexible light strip, a bending degree detection device and a production method are proposed to ensure the diversity of test angles, the comprehensiveness of test positions and the randomness of the test process. Summary of the invention

[0005] The object of the present invention is to provide an FPC-COB flexible light strip, a bending degree detection device and a production method to solve the problem that the bending degree detection of the flexible light strip is incomplete and lacks randomness.

[0006] On one hand, the present invention proposes: an FPC-COB flexible light strip, comprising a soft light strip, wherein a wrapping layer is arranged on the outside of the soft light strip, wherein the wrapping layer wraps a flexible circuit board and a chip, wherein long strips of conductive wires are arranged inside the flexible circuit board, and wherein the array of long strips of conductive wires extends along the length direction of the flexible circuit board.

[0007] On the other hand, the present invention provides: an FPC-COB flexible light strip bending degree detection device, comprising a mounting shell, and also comprising a winding wheel slidably connected inside, a first roller group and a second roller group arranged on the mounting shell, a storage wheel rotatably connected to the top of the mounting shell, a transmission bar group slidably connected to the inside of the mounting shell, a pusher and a concave-convex rotating wheel arranged inside the mounting shell, a return member connected between the concave-convex rotating wheel and the mounting shell, a transmission belt rotatably connected to the inside of the mounting shell, two long rods and short rods slidably connected to the inside of the mounting shell, and a spring telescopic rod connected to the inside of the mounting shell, the concave-convex rotating wheel, the return member, the transmission belt, the long rod and the short rod are all provided in multiple and equal quantities, the concave-convex rotating wheel is located between the pusher and the transmission bar group, the concave-convex rotating wheel is rotatably connected to one end of the return member, the transmission belt is located below the concave-convex rotating wheel, and the bottom ends of the long rod and the short rod are fixedly connected The convex strips are all located inside the transmission bar group, the first roller group includes a first upper pressure roller and a first lower pressure roller located on the mounting shell, the second roller group includes a second upper pressure roller and a second lower pressure roller located on the mounting shell, the first upper pressure roller and the second upper pressure roller are respectively rotatably connected between the corresponding long rod and the spring telescopic rod, the first lower pressure roller and the second lower pressure roller are respectively rotatably connected between the corresponding short rod and the spring telescopic rod, the distance between the first lower pressure roller and the first upper pressure roller is smaller than the distance between the second upper pressure roller and the second lower pressure roller, the second upper pressure roller is located between the first lower pressure roller and the second lower pressure roller, the transmission belt rotates and drives the concave and convex rotating wheel to rotate randomly, and the pusher pushes the transmission bar group through the concave and convex rotating wheel when it is extended, so that the long rod and the short rod move up, thereby changing the heights of the first upper pressure roller, the first lower pressure roller, the second upper pressure roller and the second lower pressure roller to perform bending detection on the soft light strip.

[0008] Furthermore, the transmission bar group includes a first transmission bar, a second transmission bar, a third transmission bar and a fourth transmission bar which are slidably connected inside the bottom end of the mounting shell, the first transmission bar and the third transmission bar are both provided with a first oblique slot, the second transmission bar and the fourth transmission bar are both provided with a second oblique slot, and the plurality of protrusions are respectively located inside the first oblique slot and the second oblique slot.

[0009] When the pusher is fully retracted, the first transmission bar, the second transmission bar, the third transmission bar and the fourth transmission bar are all located in the same plane on one side close to the pusher, the bottom end to the top end of the first inclined slot is inclined in a direction close to the concave-convex rotating wheel, and the bottom end to the top end of the second inclined slot is inclined in a direction away from the concave-convex rotating wheel.

[0010] Furthermore, a servo motor is provided on one side of the mounting shell, an output end of the servo motor is fixedly connected to a transmission shaft, a driving motor is provided on the top of the mounting shell, and the driving motor is fixedly connected to the center of the storage wheel.

[0011] A plurality of square slots are provided on the top of the mounting shell, a strip slot is provided on the top of the mounting shell, the bottom of the winding wheel is slidably connected to the inside of the strip slot, two limit support plates are provided inside the mounting shell, the bottom of the spring telescopic rod is fixedly connected to the limit support plate, and the long rod and the short rod pass through the limit support plate.

[0012] Two limiting rods are arranged inside the installation shell, a connecting rod is arranged at the bottom of the winding wheel, and a return spring is connected between the connecting rod and the installation shell.

[0013] Furthermore, a plurality of guide strips are provided inside the mounting shell, and two concave-convex rotating wheels are slidably connected between two of the guide strips. The concave-convex rotating wheels include a pressure transmission wheel located inside the mounting shell, a rough wheel fixedly connected to one side of the pressure transmission wheel, and an axial wheel rotatably connected to the outside of the pressure transmission wheel. The axial wheel is slidably connected to the inside of the guide strips, and an axial strip is rotatably connected to the inside of the two pressure transmission wheels, and one side of the pressure transmission wheel is rotatably connected to the inside of the axial wheel.

[0014] Furthermore, the interior of the mounting shell is rotatably connected to a plurality of support shafts, the transmission belt is rotatably connected to the outside of the support shafts and the transmission shaft, a friction plate is provided on the surface of the transmission belt, and when the pusher is fully retracted, the friction plate is located below the transmission belt, and the position where the friction plate is provided on the transmission belt is tangent to the rough wheel.

[0015] Furthermore, the exterior of the concave-convex rotating wheel is divided into a long convex surface, a shallow concave surface, a short convex surface, a deep concave surface and an arc surface, and the edges thereof are not on the same circumference.

[0016] Furthermore, the pusher includes an electric rod fixedly connected to the inside of the mounting shell, a connecting rod connected to the output end of the electric rod, and two push blocks respectively connected to the two ends of the connecting rod. The push blocks are located on one side of the two pressure transmission wheels. When the electric rod is fully retracted, the push blocks do not contact the pressure transmission wheels, and the bottom end of the push blocks is a friction surface.

[0017] Furthermore, the return member includes a sleeve frame located outside the pressure transmission wheel, a bearing rotatably connected between the sleeve frame and the pressure transmission wheel, and a strong spring bar connected between the sleeve frame and the mounting shell.

[0018] The present invention also provides a method for producing an FPC-COB flexible light strip, comprising the following steps: Material preparation and processing: Select suitable flexible PC material as the substrate, cut the PC material into the required size, and make the circuit pattern at the same time.

[0019] Chip mounting and welding: Connect the LED chip to the circuit to form an electrical path and apply a protective layer of silicone or epoxy resin.

[0020] Bending detection and improvement: Cut the soft light strip into the required length, and perform necessary bending detection through the first roller group and the second roller group, and use the appropriate equipment to check the use condition after bending, and make improvements and adjustments based on the detection results.

[0021] Beneficial effects of the present invention: The rotation of the transmission belt makes the concave-convex wheel rotate randomly due to inertia after being driven, so that the distances between the multiple concave-convex wheels and the transmission bar group change randomly, and then the concave-convex wheel can be braked by the pusher, and at the same time, the pusher squeezes the transmission bar group through the concave-convex wheel as a medium, so that the transmission bar group drives the corresponding first upper pressure roller, first lower pressure roller, second upper pressure roller and second lower pressure roller to move up and down, forming multiple positions and angles of different angles, and due to the random rotation of the concave-convex wheel, the angles of the first upper pressure roller, the first lower pressure roller, the second upper pressure roller and the second lower pressure roller are different each time, ensuring that different positions of each soft light strip are inspected at random angles, which is helpful to discover defects that may be overlooked, and can help ensure the consistency of the quality of the soft light strip. The weaknesses of the light strip at a specific bending angle can be quickly identified, and adjusted and optimized accordingly to meet the effective random detection effect during automated production.

[0022] By using return parts and servo motors to control, different angles can be randomly presented to detect soft light strips. No intelligent control is required. All detection settings can be completed by controlling the working intervals of two devices through one control part. This not only improves operating efficiency, but also reduces errors that may occur due to complex operations. At the same time, a single return part can be used to control the transmission bar group and multiple concave and convex wheels. Using a centralized approach can reduce the complexity and time consumption of maintenance work and reduce maintenance costs.

[0023] The problem of incomplete and insufficient randomness in the bending degree detection of soft light strips is solved by the structural coordination of the concave and convex rotating wheel and the transmission bar group. It can not only simulate a variety of bending angles in actual use, but also avoid errors in intelligent control equipment and reduce missed detections and false detections due to human factors, thereby improving detection accuracy, reducing maintenance, shortening the detection cycle, reducing dependence on manual labor, and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of a three-dimensional structure of the present invention from a first viewing angle; Figure 2 It is a cross-sectional view of a local structure of the present invention; Figure 3 It is a structural schematic diagram of the transmission bar assembly of the present invention; Figure 4 For the present invention Figure 2 Sectional view at AA in the middle; Figure 5 For the present invention Figure 2 Sectional view at the middle BB; Figure 6 It is a structural schematic diagram of the concave-convex rotating wheel of the present invention; Figure 7 It is a structural schematic diagram of the pressure transmission wheel of the present invention; Figure 8 It is a structural schematic diagram of the return member of the present invention; Fig. 9 It is a plan cross-sectional view of the overall structure of the present invention.

[0025] In the figure: 1, mounting shell; 101, square notch; 102, strip notch; 103, limit support plate; 104, limit rod; 105, guide bar; 106, support shaft; 2, winding wheel; 21, connecting rod; 22, return spring; 3, first roller group; 31, first upper pressure roller; 32, first lower pressure roller; 4, second roller group; 41, second upper pressure roller; 42, second lower pressure roller; 5, storage wheel; 6, transmission bar group; 601, first oblique notch; 602, second oblique notch; 61, first transmission bar; 62, second transmission bar; 63, third transmission bar; 64, fourth transmission bar; 7, push Actuator; 71, electric rod; 72, connecting rod; 73, push block; 731, friction surface; 8, concave-convex rotating wheel; 81, pressure transmission wheel; 811, long convex surface; 812, shallow concave surface; 813, short convex surface; 814, deep concave surface; 815, arc surface; 82, rough wheel; 83, shaft wheel; 9, return member; 91, sleeve; 92, bearing; 93, strong spring strip; 10, transmission belt; 100, friction plate; 11, long rod; 12, short rod; 13, spring telescopic rod; 14, convex strip; 15, servo motor; 151, transmission shaft; 16, drive motor; 17, shaft strip; 18, soft light strip. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] Embodiment 1

[0028] Reference Figure 1-Figure 9, which is the first embodiment of the present invention, provides an FPC-COB flexible light strip, including a soft light strip 18, a wrapping layer is arranged on the outside of the soft light strip 18, the wrapping layer wraps the flexible circuit board and the chip, and a long strip of wire is arranged in the flexible circuit board, and the long strip of wire array extends along the length direction of the flexible circuit board.

[0029] Embodiment 2

[0030] Reference Figure 1-Figure 9 , which is a second embodiment of the present invention, provides a FPC-COB flexible light strip bending degree detection device, including a mounting shell 1, and also includes a winding wheel 2 slidably connected inside, a first roller group 3 and a second roller group 4 arranged on the mounting shell 1, a storage wheel 5 rotatably connected to the top of the mounting shell 1, a transmission bar group 6 slidably connected inside the mounting shell 1, a pusher 7 and a concave-convex rotating wheel 8 arranged inside the mounting shell 1, a return member 9 connected between the concave-convex rotating wheel 8 and the mounting shell 1, and a transmission belt 1 rotatably connected to the inside of the mounting shell 1. 0, two long rods 11 and short rods 12 are provided which are slidably connected to the inside of the mounting shell 1, and a spring telescopic rod 13 is connected to the inside of the mounting shell 1, the concave-convex rotating wheel 8, the return member 9, the transmission belt 10, the long rod 11 and the short rod 12 are provided with multiple and equal numbers, the concave-convex rotating wheel 8 is located between the pusher 7 and the transmission bar group 6, the concave-convex rotating wheel 8 is rotatably connected to one end of the return member 9, the transmission belt 10 is located below the concave-convex rotating wheel 8, the bottom ends of the long rod 11 and the short rod 12 are fixedly connected with convex strips 14, and the multiple convex strips 14 are located at the transmission bar group 6. Inside the movable bar group 6, the first roller group 3 includes a first upper pressing roller 31 and a first lower pressing roller 32 located on the mounting shell 1, and the second roller group 4 includes a second upper pressing roller 41 and a second lower pressing roller 42 located on the mounting shell 1, the first upper pressing roller 31 and the second upper pressing roller 41 are respectively rotatably connected between the corresponding long rod 11 and the spring telescopic rod 13, and the first lower pressing roller 32 and the second lower pressing roller 42 are respectively rotatably connected between the corresponding short rod 12 and the spring telescopic rod 13, and the distance between the first lower pressing roller 32 and the first upper pressing roller 31 is smaller than that between the second upper pressing roller 41 and the second lower pressing roller 42. The distance between the roller 41 and the second lower pressing roller 42, the second upper pressing roller 41 is located between the first lower pressing roller 32 and the second lower pressing roller 42, thereby simulating the bending of the soft light strip 18 under various distance conditions. When the transmission belt 10 rotates, it drives the concave-convex rotating wheel 8 to rotate randomly. When the pusher 7 is extended, it pushes the transmission bar group 6 through the concave-convex rotating wheel 8, so that the long rod 11 and the short rod 12 move up, thereby changing the height of the first upper pressing roller 31, the first lower pressing roller 32, the second upper pressing roller 41 and the second lower pressing roller 42 to perform bending detection on the soft light strip 18.

[0031] Specifically, when the pusher 7 is fully retracted, the tops of the first upper pressure roller 31 and the second upper pressure roller 41 are tangent to each other and are both located below the second lower pressure roller 42. At the same time, the second lower pressure roller 42 is tangent to the top of the second upper pressure roller 41, and the right sides of the first upper pressure roller 31 and the first lower pressure roller 32 are rotatably connected to the long rod 11 and the short rod 12 respectively, and the left sides of the first upper pressure roller 31 and the first lower pressure roller 32 are connected to the corresponding spring telescopic rod 13, and the left sides of the second upper pressure roller 41 and the second lower pressure roller 42 are rotatably connected to the long rod 11 and the short rod 12 respectively, and the right sides of the second upper pressure roller 41 and the second lower pressure roller 42 are connected to the corresponding spring telescopic rod 13, and the long rod 11 and the short rod 12 cooperate with the transmission bar group 6, so that multiple components are staggered to avoid collision and save space. The spring elasticity coefficient outside the spring telescopic rod 13 is strong to ensure that the connected components can move back quickly.

[0032] In addition, the spring telescopic rod 13 externally connected to the first upper pressure roller 31 and the second upper pressure roller 41 has the same structure, and the spring telescopic rod 13 externally connected to the first lower pressure roller 32 and the second lower pressure roller 42 has the same structure, and the coefficient of the external spring can be adjusted according to the different heights of the connecting parts.

[0033] Reference Figure 1-Figure 3 The transmission bar group 6 includes a first transmission bar 61, a second transmission bar 62, a third transmission bar 63 and a fourth transmission bar 64 which are slidably connected to the bottom end of the mounting shell 1. The first transmission bar 61 and the third transmission bar 63 are both provided with a first oblique slot 601, and the second transmission bar 62 and the fourth transmission bar 64 are both provided with a second oblique slot 602. A plurality of convex strips 14 are respectively located inside the first oblique slot 601 and the second oblique slot 602.

[0034] When the pusher 7 is fully retracted, the first transmission bar 61, the second transmission bar 62, the third transmission bar 63 and the fourth transmission bar 64 are all located in the same plane on one side close to the pusher 7, and multiple convex strips 14 are respectively located at the bottom end of the first oblique slot 601 and the top end of the second oblique slot 602. The bottom end to the top end of the first oblique slot 601 is inclined in a direction close to the concave-convex rotating wheel 8, so that when the first transmission bar 61 and the third transmission bar 63 move, the convex strip 14 will move upward due to the path of the first oblique slot 601, so that the first upper pressure roller 31 and the second upper pressure roller 41 will both move upward, and the bottom end to the top end of the second oblique slot 602 will be inclined in a direction away from the concave-convex rotating wheel 8. Then, when the second transmission bar 62 and the fourth transmission bar 64 move, the corresponding convex strips 14 will move upward due to the path of the second oblique slot 602, so that the first lower pressure roller 32 and the second lower pressure roller 42 will both move downward, forming an angle to bend the soft light strip 18 from the upper and lower directions.

[0035] Specifically, when the pusher 7 is fully retracted, the first transmission bar 61, the second transmission bar 62, the third transmission bar 63 and the fourth transmission bar 64 are all located on the same plane on one side close to the pusher 7, ensuring that the entire device is in the same position before the soft light strip 18 is tested, and the pusher 7 will push it through the concave-convex rotating wheel 8, and the distance between the concave-convex rotating wheel 8 and the pusher 7 will not change. The first transmission bar 61, the second transmission bar 62, the third transmission bar 63 and the fourth transmission bar 64 are at the same position at this time, and then when the random concave-convex rotating wheel 8 rotates, the distances between different concave-convex rotating wheels 8 and the first transmission bar 61, the second transmission bar 62, the third transmission bar 63 and the fourth transmission bar 64 will be The pusher 7 squeezes the corresponding component through the concave-convex wheel 8 at this time, and the distance moved by the squeezed component varies according to the size of the distance between the concave-convex wheel 8 and the pusher 7. The first transmission bar 61 controls the up and down movement of the first upper pressure roller 31, the second transmission bar 62 controls the up and down movement of the first lower pressure roller 32, the third transmission bar 63 controls the up and down movement of the second upper pressure roller 41, and the fourth transmission bar 64 controls the up and down movement of the second lower pressure roller 42, thereby making it difficult to control the angle formed by the up and down movement of the first upper pressure roller 31, the first lower pressure roller 32, the second upper pressure roller 41 and the second lower pressure roller 42, so that a variety of different angles can be formed to perform different bending tests on the soft light strip 18.

[0036] When the pusher 7 is fully retracted, it means that the output end of the pusher 7 has not moved, and the number of the concave-convex wheels 8 is equal to the number of components included in the transmission bar set 6 .

[0037] Reference Figure 1-Figure 7 A servo motor 15 is provided on one side of the mounting shell 1 , and a transmission shaft 151 is fixedly connected to the output end of the servo motor 15 . A driving motor 16 is provided on the top of the mounting shell 1 , and the driving motor 16 is fixedly connected to the center of the storage wheel 5 .

[0038] A plurality of square slots 101 are provided on the top of the mounting shell 1, and the first upper pressing roller 31, the first lower pressing roller 32, the second upper pressing roller 41 and the second lower pressing roller 42 can pass through the square slots 101. A strip slot 102 is provided on the top of the mounting shell 1, and the bottom of the winding wheel 2 is slidably connected to the inside of the strip slot 102. Two limiting support plates 103 are provided inside the mounting shell 1, and the bottom of the spring telescopic rod 13 is fixedly connected to the limiting support plate 103, and the long rod 11 and the short rod 12 pass through the limiting support plate 103. The limiting support plate 103 is used to support the spring telescopic rod 13, and at the same time, the long rod 11 and the short rod 12 are limited to ensure their stable movement.

[0039] Two limiting rods 104 are arranged inside the mounting shell 1 to limit the winding wheel 2. A connecting rod 21 is arranged at the bottom of the winding wheel 2. A return spring 22 is connected between the connecting rod 21 and the mounting shell 1. When the first upper pressure roller 31, the first lower pressure roller 32, the second upper pressure roller 41 and the second lower pressure roller 42 move to squeeze the soft light strip 18, the soft light strip 18 will be pulled, resulting in inaccurate detection. In order to avoid damage to the soft light strip 18 caused by pulling, when the soft light strip 18 is pulled, the winding wheel 2 will drive the connecting rod 21 to move outside the limiting rod 104, the connecting rod 21 will compress the return spring 22, and the winding wheel 2 will slide inside the strip notch 102. The elastic coefficient of the return spring 22 can prevent the storage wheel 5 from shaking when the soft light strip 18 is gathered.

[0040] Specifically, the tops of the winding wheel 2 and the storage wheel 5 are storage sleeves that can be removed at will.

[0041] Reference Figure 2-Figure 5 Two concave-convex rotating wheels 8 are slidably connected between the two guide bars 105, and the guide bars 105 are used to limit the movement of the concave-convex rotating wheels 8. The concave-convex rotating wheels 8 include a pressure transmission wheel 81 located inside the mounting shell 1, a rough wheel 82 fixedly connected to one side of the pressure transmission wheel 81, and an axle wheel 83 rotatably connected to the outside of the pressure transmission wheel 81. The axle wheel 83 is slidably connected to the inside of the guide bar 105. The inside of the two pressure transmission wheels 81 is rotatably connected to an axle bar 17, and one side of the pressure transmission wheel 81 is rotatably connected to the inside of the axle wheel 83. An axle bar 17 supports the two pressure transmission wheels 81, and a gasket is arranged between the two pressure transmission wheels 81, and the gasket is fixedly connected to the axle bar 17 to avoid friction synchronization between the two pressure transmission wheels 81, so that the pressure transmission wheels 81 rotate with inertia after being driven, which can simulate the uncertainty in the real world, thereby greatly improving the adaptability and reliability of the product, making quality inspection no longer a fixed and predictable process, but unpredictable, forcing every link on the production line to maintain a high degree of consistency and stability.

[0042] A plurality of guide strips 105 are arranged inside the mounting shell 1, the concave-convex rotating wheel 8 is slidably connected inside the guide strips 105, a plurality of support shafts 106 are rotatably connected inside the mounting shell 1, the transmission belt 10 is rotatably connected to the outside of the support shafts 106 and the transmission shaft 151, a friction plate 100 is arranged on the surface of the transmission belt 10, when the pusher 7 is fully retracted, the friction plate 100 is located below the transmission belt 10, and the position where the friction plate 100 is arranged on the transmission belt 10 is tangent to the rough wheel 82.

[0043] Specifically, conventional control equipment can be used to control the servo motor 15 and the pusher 7 for intermittent driving, that is, the pusher 7 will not start when the servo motor 15 drives the transmission shaft 151, and the servo motor 15 will not start when the pusher 7 is extended or retracted. The servo motor 15 drives the transmission shaft 151 to rotate rapidly, so that the transmission belt 10 rotates rapidly. The transmission ratio of the transmission belt 10 to the transmission shaft 151 can be one to three, that is, the transmission shaft 151 rotates three times and the transmission belt 10 rotates one complete circle. At this time, the friction plate 100 will rotate one circle to drive the rough wheel 82 once, and then the rough wheel 82 and the pressure wheel 81 will no longer be in direct contact with external components after being pushed by external force, and then the pressure wheel 81 will rotate randomly. By utilizing this randomness, the soft light strip 18 will be subjected to more comprehensive and rigorous testing, which not only ensures the uniformity of product quality, but also reduces the risk of problems in actual applications.

[0044] Reference Figure 2-Figure 6 The outside of the concave-convex wheel 8 is divided into a long convex surface 811, a shallow concave surface 812, a short convex surface 813, a deep concave surface 814 and an arc surface 815, and the edges are not on the same circumference, that is, the distances between the edges close to the center of the pressure transfer wheel 81 are different, and the positions are irregularly arranged. After the concave-convex wheel 8 rotates randomly, the side close to the transmission bar group 6 cannot be determined, so the pushing distance of the transmission bar group 6 will also be more random, which can reveal the potential problems of the soft light strip 18 at non-standard angles and ensure that the axis bar 17 can maintain consistent brightness and stability during installation and use, whether it is straight or curved.

[0045] Among them, the long convex surface 811, the shallow concave surface 812, the short convex surface 813, the deep concave surface 814 and the arc surface 815 are close to the center of the pressure transmission wheel 81 in the order from large to small: long convex surface 811, short convex surface 813, arc surface 815, shallow concave surface 812 and deep concave surface 814.

[0046] Reference Figure 1-Figure 8 The pusher 7 includes an electric rod 71 fixedly connected to the inside of the mounting shell 1, a connecting rod 72 connected to the output end of the electric rod 71, and two pushing blocks 73 respectively connected to the two ends of the connecting rod 72. The pushing block 73 is located on one side of the two pressure transmission wheels 81. When the electric rod 71 is fully retracted, the pushing block 73 does not contact the pressure transmission wheel 81, thereby avoiding the pushing block 73 from affecting the pressure transmission wheel 81. At the same time, the pushing block 73 can push the two pressure transmission wheels 81 to move. The bottom end of the pushing block 73 is a friction surface 731. When the friction surface 731 contacts the pressure transmission wheel 81, the rough surface of the friction surface 731 is used to slow down the pressure transmission wheel 81 so that the pressure transmission wheel 81 gradually stops rotating. At the same time, the pushing block 73 pushes the pressure transmission wheel 81, and the pressure transmission wheel 81 moves in the direction close to the transmission bar group 6, thereby squeezing the transmission bar group 6.

[0047] Reference Figure 1-Figure 9The return member 9 includes a sleeve 91 located outside the pressure transmission wheel 81, a bearing 92 rotatably connected between the sleeve 91 and the pressure transmission wheel 81, and a strong spring strip 93 connected between the sleeve 91 and the mounting shell 1.

[0048] Specifically, the return member 9 as a whole serves as a power to ensure the return movement of the pressure transmission wheel 81. During the initial design, one side of the push block 73 is closed, and the push block 73 is used to pull the pressure transmission wheel 81 back, but the power of the random rotation of the pressure transmission wheel 81 is blocked, and then one side of the push block 73 is cut so that the push block 73 is only used as a power, and the return member 9 as a whole is used to pull the pressure transmission wheel 81, and then a bearing 92 is arranged between the sleeve frame 91 and the pressure transmission wheel 81, which will not affect the rotation of the pressure transmission wheel 81. At the same time, the strong spring bar 93 can rebound and pull the sleeve frame 91 after being stretched, so that the sleeve frame 91 drives the pressure transmission wheel 81 to move back.

[0049] Embodiment 3

[0050] Reference Figure 1-Figure 9 , which is a third embodiment of the present invention, provides a method for producing an FPC-COB flexible light strip, comprising the following steps: Material preparation and processing: Select suitable flexible PC material as the substrate, cut the PC material into the required size, and make the circuit pattern at the same time.

[0051] Chip mounting and soldering: Connect the LED chip to the circuit to form an electrical path and apply a protective layer of silicone or epoxy resin to protect the internal electronic components.

[0052] Bending detection and improvement: Cut the soft light strip 18 into the required length, and perform necessary bending detection through the first roller group 3 and the second roller group 4, and use the matching equipment to check the use condition after bending, make improvements and adjustments based on the detection results, and connect the soft light strip 18 with the power connector and controller to ensure that each step meets the standards.

[0053] The working principle of the present invention is as follows: the drive motor 16 is wound around the storage sleeve on the top of the winding wheel 2, and one end of the drive motor 16 is pulled to pass through the first upper pressure roller 31, the first lower pressure roller 32, the second upper pressure roller 41 and the second lower pressure roller 42, and is fixedly connected to the storage wheel 5, and then the device is started, the drive motor 16 drives the storage wheel 5 to rotate, and the storage wheel 5 pulls and converges the drive motor 16, and at the same time the servo motor 15 drives the transmission shaft 151 to rotate six circles, so that the transmission shaft 151 drives the transmission belt 10 After two rotations, the friction plate 100 of the transmission belt 10 will contact the rough wheel 82, thereby driving the rough wheel 82 to rotate. When the rough wheel 82 rotates, it will drive the pressure wheel 81 to rotate. When the pressure wheel 81 rotates, the friction plate 100 of the transmission belt 10 is located below the transmission belt 10. At this time, the rough wheel 82 will not contact the transmission belt 10, so that the pressure wheel 81 rotates randomly outside the shaft 17. Then the electric rod 71 extends, and the electric rod 71 pushes the connecting rod 72 to move, and the connecting rod 72 The two push blocks 73 are driven to move synchronously, and the friction surface 731 of the push block 73 contacts the side surfaces of the two pressure transmission wheels 81. The friction surface 731 blocks the rotation of the pressure transmission wheels 81 and stops rotating. As the push block 73 is pushed, one push block 73 pushes one side of the two pressure transmission wheels 81 to move synchronously. The pressure transmission wheels 81 drive the rough wheel 82, the shaft wheel 83, the sleeve frame 91 and the bearing 92 to move synchronously. The sleeve frame 91 stretches the strong spring strip 93 when moving, and the shaft wheels 83 on both sides of the two pressure transmission wheels 81 are positioned at the same position. Inside the guide bar 105, the shaft wheel 83 moves and translates along the path of the guide bar 105. As the pressure transfer wheel 81 is pushed by the push block 73, the pressure transfer wheel 81 squeezes the corresponding component. That is, since multiple pressure transfer wheels 81 are provided, and the number of pressure transfer wheels 81 corresponds to the number of components included in the transmission bar group 6, the four pressure transfer wheels 81 will squeeze the same side of the first transmission bar 61, the second transmission bar 62, the third transmission bar 63 and the fourth transmission bar 64 respectively, so the four components move in the same way.

[0054] Taking the first transmission bar 61 as an example, the push block 73 needs to be squeezed by the pressure wheel 81 as a medium, but since the outer surface edges of the pressure wheel 81 are not in the same circumference, the position angle of the pressure wheel 81 after the pressure wheel 81 rotates randomly cannot be determined. If the long convex surface 811 of the pressure wheel 81 contacts the first transmission bar 61, and the long convex surface 811 is short from the first transmission bar 61, and the pushing distance of the push block 73 is fixed, then the first transmission bar 61 is pushed the longest distance, and then the first transmission bar 61 is installed in the housing 1. When the long rod 11 slides inside, since the convex strip 14 is located inside the first oblique slot 601, the convex strip 14 will be squeezed by the first transmission strip 61 and move along the path of the first oblique slot 601. At this time, the convex strip 14 will move from the bottom end to the top end of the first oblique slot 601, which makes the long rod 11 moved upward by the convex strip 14. When the long rod 11 moves upward, the first upper pressure roller 31 moves upward synchronously. The first upper pressure roller 31 stretches the spring telescopic rod 13, and when the long rod 11 moves upward, it squeezes the soft light strip 18, causing the soft light strip 18 to bend.

[0055] Subsequently, the electric rod 71 contracts to make the connecting rod 72 and the push block 73 move back synchronously. At this time, the pressure transmission wheel 81 loses its squeezing, and the sleeve frame 91 outside the pressure transmission wheel 81 is pulled by the rebound force of the strong spring bar 93 and moves back synchronously. The spring telescopic rod 13 on one side of the first upper pressure roller 31 contracts, so that the first upper pressure roller 31 moves downward, and then the long rod 11 moves downward synchronously, and the convex bar 14 squeezes the first transmission bar 61, so that the first transmission bar 61 also moves back synchronously, and the second transmission bar 62, the third transmission bar 63, and the fourth transmission bar 64 work in the same way as the first transmission bar 61, all of which are translational, and their transmission methods are also the same. However, the second transmission bar 62 and the fourth transmission bar 64 are provided with a second oblique slot 602, so that when the second transmission bar 62 and the fourth transmission bar 64 are translated, they will respectively pull the first lower pressure roller 32 and the second lower pressure roller 42 downward to squeeze the soft light strip 18 and compress the spring telescopic rod 13 at the same time. The spring telescopic rod 13 will generate a rebound force, and the third transmission bar 63 drives the second upper pressure roller 41 to move upward. At this time, the first upper pressure roller 31 and the second upper pressure roller 41 move upward, while the first lower pressure roller 32 and the second lower pressure roller 42 move downward, forming different angles to squeeze the soft light strip 18 and make it bend. Among them, although the first transmission bar 61, the second transmission bar 62, the third transmission bar 63 and the fourth transmission bar 64 are all squeezed by the pressure transmission wheel 81, due to the random rotation of the pressure transmission wheel 81, the first transmission bar 61, the second transmission bar 62, the third transmission bar 63 and the fourth transmission bar 64 are all squeezed and moved by the pressure transmission wheel 81, so the moving distances of the four are different, and then they are also different when they are transmitted to the first upper pressure roller 31, the first lower pressure roller 32, the second upper pressure roller 41 and the second lower pressure roller 42 respectively, so that the angle formed by the lifting and lowering of the first upper pressure roller 31, the first lower pressure roller 32, the second upper pressure roller 41 and the second lower pressure roller 42 cannot be determined, and the squeezing of the soft light strip 18 cannot be determined, so that different positions of the soft light strip 18 can be bent at different and random angles, and then cooperate with conventional and adapted products to detect whether it can work normally after bending.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An FPC-COB flexible light strip, comprising a soft light strip (18), characterized in that: The flexible light strip (18) is provided with a wrapping layer on the outside, the wrapping layer wraps the flexible circuit board and the chip, and the flexible circuit board is provided with a long strip of conductive wires, the long strip of conductive wire array extending along the length direction of the flexible circuit board.

2. A FPC-COB flexible light strip bending degree detection device, applied to the FPC-COB flexible light strip according to claim 1, comprising a mounting shell (1), characterized in that: The invention also comprises a winding wheel (2) slidably connected inside, a first roller group (3) and a second roller group (4) arranged on the mounting shell (1), a storage wheel (5) rotatably connected to the top of the mounting shell (1), a transmission bar group (6) slidably connected inside the mounting shell (1), a pusher (7) and a concave-convex rotating wheel (8) arranged inside the mounting shell (1), a return member (9) connected between the concave-convex rotating wheel (8) and the mounting shell (1), a transmission belt (10) rotatably connected inside the mounting shell (1), two long rods (11) and a short rod (12) slidably connected inside the mounting shell (1), and a connecting rod (11). A spring telescopic rod (13) is installed inside the housing (1), the concave-convex rotating wheel (8), the return member (9), the transmission belt (10), the long rod (11) and the short rod (12) are provided in multiple numbers and in equal numbers, the concave-convex rotating wheel (8) is located between the pusher (7) and the transmission bar group (6), the concave-convex rotating wheel (8) is rotatably connected to one end of the return member (9), the transmission belt (10) is located below the concave-convex rotating wheel (8), the bottom ends of the long rod (11) and the short rod (12) are fixedly connected to convex strips (14), the multiple convex strips (14) are located inside the transmission bar group (6), the The first roller group (3) comprises a first upper pressing roller (31) and a first lower pressing roller (32) located on the mounting shell (1); the second roller group (4) comprises a second upper pressing roller (41) and a second lower pressing roller (42) located on the mounting shell (1); the first upper pressing roller (31) and the second upper pressing roller (41) are respectively rotatably connected between a corresponding long rod (11) and a spring telescopic rod (13); the first lower pressing roller (32) and the second lower pressing roller (42) are respectively rotatably connected between a corresponding short rod (12) and a spring telescopic rod (13); the first lower pressing roller (32) and the first upper pressing roller (31) are respectively rotatably connected between the first upper pressing roller (31) and the second lower pressing roller (42) The spacing between the first and second upper pressing rollers (41) is smaller than the spacing between the second upper pressing roller (41) and the second lower pressing roller (42); the second upper pressing roller (41) is located between the first and second lower pressing rollers (32) and (42); when the transmission belt (10) rotates, the concave-convex rotating wheel (8) is driven to rotate randomly; when the pusher (7) is extended, the transmission bar group (6) is pushed through the concave-convex rotating wheel (8), so that the long rod (11) and the short rod (12) move upward, thereby changing the heights of the first upper pressing roller (31), the first lower pressing roller (32), the second upper pressing roller (41) and the second lower pressing roller (42) to perform bending detection on the soft light strip (18).

3. The FPC-COB flexible light strip bending detection device according to claim 2 is characterized in that: The transmission bar group (6) comprises a first transmission bar (61), a second transmission bar (62), a third transmission bar (63) and a fourth transmission bar (64) which are slidably connected inside the bottom end of the mounting shell (1); the first transmission bar (61) and the third transmission bar (63) are each provided with a first oblique slot (601); the second transmission bar (62) and the fourth transmission bar (64) are each provided with a second oblique slot (602); and the plurality of protruding bars (14) are respectively located inside the first oblique slot (601) and the second oblique slot (602); When the pusher (7) is fully retracted, the first transmission bar (61), the second transmission bar (62), the third transmission bar (63) and the fourth transmission bar (64) are all located in the same plane on a side close to the pusher (7), the first inclined slot opening (601) is inclined from the bottom end to the top end in a direction close to the concave-convex rotating wheel (8), and the second inclined slot opening (602) is inclined from the bottom end to the top end in a direction away from the concave-convex rotating wheel (8).

4. The FPC-COB flexible light strip bending detection device according to claim 2, characterized in that: A servo motor (15) is disposed on one side of the mounting shell (1), the output end of the servo motor (15) being fixedly connected to a transmission shaft (151), and a drive motor (16) is disposed on the top of the mounting shell (1), the drive motor (16) being fixedly connected to the center of the storage wheel (5); A plurality of square notches (101) are provided on the top of the installation shell (1), a strip-shaped notch (102) is provided on the top of the installation shell (1), the bottom of the winding wheel (2) is slidably connected inside the strip-shaped notch (102), two limit support plates (103) are provided inside the installation shell (1), the bottom of the spring telescopic rod (13) is fixedly connected to the limit support plate (103), and the long rod (11) and the short rod (12) penetrate the limit support plate (103); Two limiting rods (104) are arranged inside the installation shell (1), a connecting rod (21) is arranged at the bottom of the winding wheel (2), and a return spring (22) is connected between the connecting rod (21) and the installation shell (1).

5. The FPC-COB flexible light strip bending detection device according to claim 3 is characterized in that: A plurality of guide bars (105) are arranged inside the mounting shell (1), two concave-convex rotating wheels (8) are slidably connected between two of the guide bars (105), the concave-convex rotating wheels (8) comprising a pressure transmission wheel (81) located inside the mounting shell (1), a rough wheel (82) fixedly connected to one side of the pressure transmission wheel (81), and an axle wheel (83) rotatably connected to the outside of the pressure transmission wheel (81), the axle wheel (83) being slidably connected to the inside of the guide bars (105), an axle bar (17) being rotatably connected to the inside of the two pressure transmission wheels (81), and one side of the pressure transmission wheel (81) being rotatably connected to the inside of the axle wheel (83).

6. The FPC-COB flexible light strip bending detection device according to claim 5, characterized in that: The mounting shell (1) is rotatably connected to a plurality of support shafts (106) inside, the transmission belt (10) is rotatably connected to the outside of the support shafts (106) and the transmission shaft (151), a friction plate (100) is provided on the surface of the transmission belt (10), and when the pusher (7) is fully retracted, the friction plate (100) is located below the transmission belt (10), and the position where the friction plate (100) is provided on the transmission belt (10) is tangent to the rough wheel (82).

7. The FPC-COB flexible light strip bending detection device according to claim 5, characterized in that: The exterior of the concave-convex rotating wheel (8) is divided into a long convex surface (811), a shallow concave surface (812), a short convex surface (813), a deep concave surface (814) and a curved surface (815), and the edges thereof are not on the same circumference.

8. The FPC-COB flexible light strip bending detection device according to claim 5, characterized in that: The pusher (7) comprises an electric rod (71) fixedly connected to the inside of the mounting shell (1), a connecting rod (72) connected to the output end of the electric rod (71), and two push blocks (73) respectively connected to the two ends of the connecting rod (72). The push blocks (73) are located on one side of the two pressure transmission wheels (81). When the electric rod (71) is fully retracted, the push blocks (73) are not in contact with the pressure transmission wheels (81), and the bottom end of the push blocks (73) is a friction surface (731).

9. The FPC-COB flexible light strip bending detection device according to claim 5, characterized in that: The return member (9) comprises a sleeve (91) located outside the pressure transmission wheel (81), a bearing (92) rotatably connected between the sleeve (91) and the pressure transmission wheel (81), and a strong spring strip (93) connected between the sleeve (91) and the mounting shell (1).

10. A method for producing an FPC-COB flexible light strip, using the FPC-COB flexible light strip bending degree detection device according to claim 3, characterized in that: The following steps are involved: Material preparation and processing: Select appropriate flexible PC material as the substrate, cut the PC material into the required size, and make the circuit pattern at the same time; Chip mounting and welding: connect the LED chip to the circuit to form an electrical path and apply a protective layer of silicone or epoxy resin; Bending detection and improvement: the soft light strip (18) is cut into a desired length, and is subjected to bending detection by passing it through a first roller set (3) and a second roller set (4). The use condition after bending is checked by matching equipment, and improvements and adjustments are made according to the detection condition.

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