Variable light source system based on light source structure of braiding machine

Abstract

The utility model discloses a variable light source system based on a light source structure of a braider, which relates to the technical field of optical detection and comprises an inner light source frame and an outer light source frame. PCB lamp panels are arranged on the side faces, close to each other, of the inner light source frame and the outer light source frame. The PCB lamp panel comprises a red light source, a white light source and a blue light source; the inner light source frame and the outer light source frame are assembled at a machine table light source mounting position through connecting rods; a branch control circuit is adopted, a connection mode of positive electrode grouping control and negative electrode sharing is adopted, independent switching of light source colors is achieved, through dynamic switching of the three-color light source, reflection characteristics of different glue colors are adapted, the detection precision is remarkably improved, the light source does not need to be disassembled after shutdown, the production interruption time is shortened, the structure is simple, the improvement cost is low, and the device is suitable for upgrading of an existing braiding machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical detection, more particularly to variable light source system based on the light source structure of braider. BACKGROUND

[0002] LED braider, also known as LED blue film braider, is an automatic production equipment that places LED components (such as LED lamp beads, chips, etc.) on the carrier tape according to the preset specifications and directions, and performs packaging processing. It integrates feeding, detection, braiding, packaging, and material collection and other links, realizes efficient, accurate and automated production of LED and other electronic components, and is widely used in industries requiring high-precision and automated braiding processing, such as LED manufacturing, automotive electronics, medical electronics, aerospace, etc. In the LED manufacturing process, it is one of the key equipment, which can extract the SMD LED components from the blue film disc and accurately implant them into the carrier tape, complete the packaging process, and improve the production efficiency and product quality of LED components.

[0003] The light source of the existing braider usually adopts a single-color light source (such as white light or red light). When there are differences in glue color in the same batch of materials, the single-color light source is difficult to form sufficient contrast in camera imaging due to the single reflection light, which leads to the inability to effectively distinguish the glue color difference, and easily causes material mixing and material scrap on the production line.

[0004] Based on this, we provide a variable light source system based on the light source structure of a braider. UTILITY MODEL CONTENTS

[0005] To solve the problems raised in the above background technology, the utility model provides a variable light source system based on the light source structure of a braider, which dynamically switches three-color light sources, adapts to the reflection characteristics of different glue colors, significantly improves the detection accuracy, does not need to stop and disassemble the light source, reduces the production interruption time, and has simple structure, low modification cost, and is suitable for upgrading the existing braider.

[0006] The variable light source system based on the light source structure of a braider provided by the utility model adopts the following technical scheme:

[0007] The variable light source system based on the light source structure of a braider comprises an inner light source frame and an outer light source frame; the side surfaces of the inner light source frame and the outer light source frame that are close to each other are provided with PCB light plates; the PCB light plates comprise red light sources, white light sources, and blue light sources; the inner light source frame and the outer light source frame are assembled at the light source installation position of the machine table through connecting rods; the control circuit adopts a connection mode of positive group control and negative common, realizing independent switching of light source colors.

[0008] Preferably, the red light source is located in the upper layer for detecting dark-colored colloids, the white light source is located in the middle layer for detecting colloids of the same color, and the blue light source is located in the lower layer for detecting light-colored colloids.

[0009] Preferably, the side of the external light source frame that assembles the PCB lamp board is tilted.

[0010] Preferably, the side of the internal light source frame that assembles the PCB lamp board is concave.

[0011] Preferably, a bracket is provided in the middle of the connecting rod, and a driving component is provided at the top of the bracket for driving the light source to rotate on the corresponding connecting rod.

[0012] Preferably, the driving component includes an electric actuator fixedly mounted on the top of the bracket, the output end of the electric actuator is provided with a rack plate, and a gear is provided on the side of the light source frame, with the rack plate meshing with the gear.

[0013] In summary, this utility model has the following beneficial technical effects:

[0014] By dynamically switching between three-color light sources to adapt to the reflective characteristics of different adhesive colors, the detection accuracy is significantly improved. There is no need to stop the machine to disassemble the light source, reducing production interruption time. Moreover, the structure is simple and the modification cost is low, making it suitable for upgrading existing tape and reel machines.

[0015] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of the variable light source system based on the tape machine light source structure in an embodiment of this utility model;

[0017] Fig. 2 This is a schematic diagram of the other side of the variable light source system based on the tape machine light source structure in this embodiment of the utility model.

[0018] Explanation of reference numerals in the attached diagram: 1. Inner light source frame; 2. Outer light source frame; 3. PCB lamp board; 4. Connecting rod; 5. Sub-control circuit; 6. Bracket; 7. Electric actuator; 8. Rack plate; 9. Gear. Detailed Implementation

[0019] The following is in conjunction with the appendix Figs. 1-2 The present invention will be described in further detail below.

[0020] It should be noted that the accompanying drawings are schematic and not to scale. For clarity and convenience, the relative dimensions and proportions of the parts shown are exaggerated or reduced in size; all dimensions are merely illustrative and not limiting. Furthermore, the same reference numerals are used for the same structures, elements, or fittings appearing in more than two drawings to indicate similar features.

[0021] Example 1

[0022] This utility model discloses a variable light source system based on the light source structure of a tape-and-reel machine. (Refer to...) Figs. 1-2 The variable light source system based on the light source structure of the tape machine includes an inner light source frame 1 and an outer light source frame 2, which are symmetrically arranged on both sides of the material transport path of the tape machine to form a through-beam lighting layout. PCB light boards 3 are provided on the sides of the inner light source frame 1 and the outer light source frame 2 that are close to each other. The PCB light boards 3 include red light sources, white light sources, and blue light sources (LED light groups), with a spacing of 10-15mm between each layer of light sources to avoid cross-interference of light paths. Both the inner light source frame 1 and the outer light source frame 2 are assembled at the light source mounting position of the machine via connecting rods 4 (the length of the connecting rods 4 can be adjusted according to the machine size (adjustment range ±50mm) and fixed by locking nuts). The sub-control circuit 5 adopts a positive group control and negative shared connection method to realize independent switching of light source colors.

[0023] Specifically, the positive terminals of the red, white, and blue light sources are connected to the three independent output ports (PORT1, PORT2, PORT3) of the controller, respectively; the negative terminals of all light sources are connected to the common ground (GND); the controller is a PLC or an embedded microcontroller, which supports manual button switching or automatic switching of light source modes via commands sent from the tape and reel machine's main control system.

[0024] Specifically, the red light source (wavelength 620-650nm) is located in the upper layer for detecting dark-colored colloids, the white light source (color temperature 5000-6000K) is located in the middle layer for detecting colloids of the same color, and the blue light source (wavelength 450-480nm) is located in the lower layer for detecting light-colored colloids.

[0025] like Fig. 2 As shown, the side of the external light source bracket 2 that mounts the PCB lamp board 3 is tilted (tilted outward by 15° to 30°) to enhance the uniformity of irradiation on the side of the colloid.

[0026] like Fig. 1 As shown, one side of the inner light source bracket 1 that assembles the PCB lamp board 3 is concave, which is used to concentrate the light and reduce stray light interference.

[0027] When detecting dark-colored colloids, the controller turns on the red light source and turns off the other light sources; when detecting light-colored colloids, it turns on the blue light source; in normal detection mode, only the white light source is enabled.

[0028] The camera captures the light reflected from the surface of the colloid. Due to the interaction between different wavelength light sources and the color of the colloid, the image contrast is significantly improved (for example, dark colloids show bright edges under red light, while light colloids produce obvious differences in brightness under blue light).

[0029] Specifically, the three-color light source switching is integrated through a separate control method, allowing for easy switching of the light source without disassembly, making the switching more convenient. By observing the differences in reflection of each color of light on the adhesive surface, the contrast of the adhesive in the camera image is improved, reducing the probability of material scrap caused by mixing materials on the production line, thereby saving costs.

[0030] Example 2

[0031] This embodiment is a further optimization based on the above embodiments. The parts that are the same as those in the foregoing technical solutions will not be repeated here. Fig. 1 As shown, in order to better realize this utility model, the following arrangement is adopted: In this embodiment, a bracket 6 is provided in the middle of the connecting rod 4, and a driving component is provided at the top of the bracket 6 for driving the light source frame to rotate on the corresponding connecting rod 4.

[0032] like Fig. 1 As shown, the driving component includes an electric actuator 7 fixedly mounted on the top of the bracket 6, a rack plate 8 at the output end of the electric actuator 7, and a gear 9 on the side of the light source bracket. The rack plate 8 and the gear 9 are meshed together.

[0033] Specifically, the electric actuator 7 drives the rack plate 8 to move, which in turn drives the gear 9 to rotate. The rotation of the gear 9 causes the inner light source frame 1 (or the outer light source frame 2) to rotate, thereby adjusting the angle of the inner light source frame 1 (or the outer light source frame 2) to further meet the usage requirements of the light source frame.

[0034] Specifically, when the colloid surface has uneven texture or is installed at an angle, the irradiation direction can be optimized by adjusting the angle of the light source frame. For example, rotating the outer light source frame 2 outward by 15° will allow the blue light source to irradiate the light-colored colloid at a grazing angle, further enhancing the contrast of the surface texture.

[0035] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0036] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A variable light source system based on a tape and reel machine light source structure, characterized in that, include: Inner light source frame (1) and outer light source frame (2); The inner light source frame (1) and the outer light source frame (2) are both provided with PCB lamp boards (3) on their sides that are close to each other; The PCB light board (3) includes a red light source, a white light source and a blue light source; Both the inner light source frame (1) and the outer light source frame (2) are assembled at the machine tool light source mounting location via connecting rods (4); The sub-control circuit (5) adopts a connection method of positive group control and negative common connection to realize independent switching of light source color.

2. The variable light source system based on the tape-and-reel machine light source structure according to claim 1, characterized in that: The red light source is located in the upper layer and is used for detecting dark-colored colloids; the white light source is located in the middle layer and is used for detecting colloids of the same color; and the blue light source is located in the lower layer and is used for detecting light-colored colloids.

3. The variable light source system based on the tape-and-reel machine light source structure according to claim 1, characterized in that: The side of the external light source frame (2) that assembles the PCB lamp board (3) is tilted.

4. The variable light source system based on the tape-and-reel machine light source structure according to claim 1, characterized in that: The inner light source frame (1) has a concave shape on one side where the PCB lamp board (3) is assembled.

5. The variable light source system based on the tape-and-reel machine light source structure according to claim 1, characterized in that: A bracket (6) is provided in the middle of the connecting rod (4), and a driving component is provided on the top of the bracket (6) for driving the light source to rotate on the corresponding connecting rod (4).

6. The variable light source system based on the tape-and-reel machine light source structure according to claim 5, characterized in that: The driving component includes an electric push rod (7) fixedly mounted on the top of the bracket (6), the output end of the electric push rod (7) is provided with a rack plate (8), and a gear (9) is provided on the side of the light source frame, and the rack plate (8) is meshed with the gear (9).

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