A UV fiber pinhole detector
By using a single motor to drive the rotating wheel and buffer spring to synchronize the movement of the conveyor belt and the dark box, the problems of multiple power sources and light leakage in UV fiber optic pinhole detectors are solved, achieving low-cost and high-efficiency pinhole detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU XUANEN TECH CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-21
AI Technical Summary
Existing UV fiber optic pinhole detectors require multiple power sources, increasing equipment costs, and the dark box is not properly sealed, making it prone to light leakage and affecting detection accuracy.
A single motor drives the rotating wheel and the dark box to move synchronously. Combined with a buffer spring and slider structure, this achieves a tight fit between the dark box and the material, reducing light leakage and improving detection stability.
It reduces equipment costs, improves the synchronization and accuracy of detection, ensures the stability of ultraviolet irradiation, and reduces interference from external light.
Smart Images

Figure CN224535845U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fiber optic pinhole detection technology, and in particular to a UV fiber optic pinhole detector. Background Technology
[0002] A UV fiber optic pinhole detector is a device specifically designed to detect pinhole defects on or inside optical fiber materials. Its main purpose is to detect pinholes in optical fiber materials during production. During operation, ultraviolet light emitted from the UV lamp irradiation plate penetrates the material's pores and shines onto the light receiving plate. The light receiving plate receives the signal and transmits it to the processing equipment, thereby determining whether pinhole defects exist in the optical fiber material to ensure the performance and quality of the optical fiber material.
[0003] However, existing UV fiber optic pinhole detectors require multiple power sources to drive the conveying mechanism (such as a conveyor belt) and the detection mechanism (such as the dark chamber lifting mechanism) separately. This not only increases the equipment cost, but also makes it easy for the dark chamber to fall below the material position when it descends, and it cannot form an effective seal with the material. External light can easily interfere with the internal detection environment of the dark chamber, affecting the stability of ultraviolet irradiation and the accuracy of detection. Therefore, a new UV fiber optic pinhole detector is needed. Utility Model Content
[0004] The purpose of this invention is to provide a UV fiber optic pinhole detector that solves the problems of light leakage due to uneven positioning caused by the need for multiple power sources and the sealing of the dark box in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a UV fiber optic pinhole detector, comprising a base, a motor, a rotating wheel, a conveyor belt, a rotating shaft, a dark box, a buffer spring, an ultraviolet lamp irradiation plate, a light receiving plate, and a slide bar. The motor is fixed on the base, and its output end drives the rotating wheel to rotate, thereby driving the conveyor belt sleeved on the rotating wheel to transport materials. Auxiliary side wheels are provided on both sides of the conveyor belt. The rotating shaft connected to the end of the motor is connected to the dark box through the buffer spring to achieve synchronous movement between the dark box and the conveyor belt. The buffer spring includes a slider rotatably connected to the rotating shaft and an elastic element connecting the slider to the groove of the dark box. The slider is provided with a dovetail groove. The dark box is sleeved on the slide bars on both sides of the base to stabilize the sliding direction. The ultraviolet lamp irradiation plate at its top cooperates with the light receiving plate between the rotating wheel to achieve pinhole detection.
[0006] Preferably, there are two rollers, which are arranged in parallel and opposite directions, and the conveyor belt is looped around the two rollers.
[0007] Preferably, the number of auxiliary side wheels corresponds one-to-one with the two sides of the conveyor belt, and the auxiliary side wheels make rolling contact with the side of the conveyor belt to help the conveyor belt maintain stable operation.
[0008] Preferably, the elastic element is a spring, and the axial direction of the spring is consistent with the lifting direction of the dark box.
[0009] Preferably, the ultraviolet lamp irradiation plate is fixedly connected to the top of the dark box, and the irradiation direction of the ultraviolet lamp irradiation plate is towards the conveyor belt.
[0010] Preferably, the light receiving plate is located above the conveyor belt.
[0011] Preferably, the slide rod is vertically fixed on the base, and a sliding hole matching the slide rod is opened on the periphery of the dark box. The slide rod passes through the sliding hole and slides in cooperation with the sliding hole.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] The motor starts and drives the rotating wheel to rotate, which in turn moves the conveyor belt to transport the material. The auxiliary side wheel helps the conveyor belt to maintain stable operation. At the same time, the motor drives the rotating shaft to rotate, which causes the dark box to descend along the slide bar. Under the action of the buffer spring, the slider slides in the groove of the dark box, and the elastic element deforms, so that the dark box is in close contact with the material. The ultraviolet lamp irradiation plate emits ultraviolet light to irradiate the material. If there is a pinhole in the material, the ultraviolet light penetrates and is received by the light receiving plate, thus realizing pinhole detection. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall front view of the product of this utility model;
[0015] Figure 2 This is a schematic diagram of the overall rear view structure of the product of this utility model;
[0016] Figure 3 This is a schematic diagram of the overall left-side structure of the product of this utility model;
[0017] Figure 4 This is a schematic diagram of the connection structure between the dark box and the buffer spring component of the present utility model.
[0018] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the product of this utility model;
[0019] Figure 6 This is a schematic diagram of the rotating shaft structure of the product of this utility model.
[0020] In the diagram: 1. Motor; 2. Rotary wheel; 3. Conveyor belt; 4. Auxiliary side wheel; 5. Rotary shaft; 51. Lower rotating rod; 52. Upper rotating rod; 6. Dark box; 7. Buffer spring component; 71. Slider; 72. Elastic component; 8. Ultraviolet lamp irradiation plate; 9. Light receiving plate; 10. Base; 11. Slide rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] This utility model relates to a UV fiber optic pinhole detector, such as... Figure 1-5 As shown, 10 and 10 serve as the basic load-bearing components of the entire UV fiber optic pinhole detector, providing a platform for the installation and support of all other parts of the equipment. This allows the parts to be assembled according to the preset positional relationships, ensuring the stability and integrity of the overall structure of the equipment and serving as the fundamental guarantee for its normal operation.
[0023] Furthermore, the motor 1 is fixedly mounted on the base 10 and serves as the power source for the equipment. Its output end is connected to the wheel 2, which drives the wheel 2 to rotate, thereby driving the conveyor belt 3 to transport materials. At the same time, the motor 1 is connected to a rotating shaft 5, which drives the rotating shaft 5 to rotate while driving the wheel 2, thereby driving the dark box 6 to reciprocate. This achieves synchronous operation of the conveyor belt 3 transporting materials and the dark box 6 lifting and lowering, eliminating the need for multiple power sources, reducing equipment costs, and improving the synchronization of actions.
[0024] Furthermore, there are two rotating wheels 2, which are arranged in parallel and opposite directions inside the base 10 and connected to the output end of the motor 1. They rotate under the drive of the motor 1. Since the conveyor belt 3 is looped around the two rotating wheels 2, the rotation of the rotating wheels 2 can drive the conveyor belt 3 to move accordingly, thereby realizing the conveying of materials. It is a key component for transmitting the power of the motor 1 to drive the conveyor belt 3.
[0025] Furthermore, the conveyor belt 3 is looped around the two rotating wheels 2, with its interior in contact with the wheels 2. Driven by the rotating wheels 2, it moves and its main function is to carry and transport the material to be tested, moving the material from one position to the detection position below the dark box 6 for pinhole detection.
[0026] Furthermore, auxiliary side wheels 4 are installed on both sides of the conveyor belt 3, with the number corresponding to the two sides of the conveyor belt 3, and they roll in contact with the sides of the conveyor belt 3. Their function is to help the conveyor belt 3 maintain stable operation, prevent the conveyor belt 3 from shifting laterally during the material conveying process, and ensure that the material can be accurately conveyed to the detection position.
[0027] Furthermore, one end of the rotating shaft 5 is connected to the end of the motor 1, and the other end is connected to the dark box 6 through the buffer spring 7. It rotates under the drive of the motor 1, transmitting the power of the motor 1 to the dark box 6, causing the dark box 6 to reciprocate, thus realizing the rise or fall of the dark box 6. It is an important component that connects the motor 1 and the dark box 6 and transmits power.
[0028] The rotating shaft 5 includes a lower rotating rod 51 and an upper rotating rod 52. One end of the lower rotating rod 51 is fixedly connected to the end of the motor 1, and the other end of the lower rotating rod 51 is rotatably connected to one end of the upper rotating rod 52. The other end of the upper rotating rod 52 is rotatably connected to a buffer spring 7. When the motor 1 drives the lower rotating rod 51 to rotate, it can cause the upper rotating rod 52 to pull the dark box 6 to rise and fall. The buffer spring 7 plays a role in buffering and pressing the material.
[0029] Furthermore, the dark box 6 is mounted on the sliding rods 11 on both sides of the base 10. The bottom of the dark box 6 is equipped with a dustproof net made of black opaque rubber. During the pressing of the material, the dustproof net can seal the material from all sides, reducing light leakage. Driven by the rotating shaft 5, the dark box 6 can move up and down along the sliding rods 11. When the dark box 6 descends, it can cover the material on the conveyor belt, forming a relatively enclosed space with the material, reducing the interference of external light on the internal detection environment of the dark box 6. At the same time, an ultraviolet lamp irradiation plate 8 is set on its top, providing an installation position and space for ultraviolet irradiation of the material.
[0030] Furthermore, the buffer spring component 7 includes a slider 71 and an elastic element 72. The slider 71 is rotatably connected to the upper end of the rotating shaft 5. One end of the elastic element 72 is connected to the slider 71, and the other end is connected to the upper end of the groove in the dark box 6. Two sets of 72 are provided, and the slider 71 is connected between the two sets of elastic elements 72. Dovetail grooves are provided on both sides of the slider 71, and the dark box 6 is provided with a groove that matches the slider 71, ensuring the stability of the slider 71 sliding in the groove. Its main function is to buffer the dark box 6 when it descends, preventing the dark box 6 from descending beyond the material position, while ensuring that the dark box 6 is tightly fitted with the material to achieve a seal and reduce the influence of the outside on the light inside the dark box 6.
[0031] Among them, the slider 71 is a component of the buffer spring 7, which is rotatably connected to the upper end of the rotating shaft and can slide up and down in the groove of the dark box 6. The dovetail grooves on both sides can ensure the stability during sliding and play the role of connecting the rotating shaft 5 and the elastic element 72, transmitting the power of the rotating shaft 5 to the elastic element 72. At the same time, during the lifting and lowering of the dark box 6, the buffer function is achieved by sliding and cooperating with the elastic element 72.
[0032] Among them, the elastic element 72 is preferably a spring, whose axis direction is consistent with the lifting direction of the dark box 6. One end is connected to the upper end of the groove of the dark box 6, and the other end is connected to the slider 71. When the dark box 6 rises or falls, the elastic element 72 will stretch or contract to generate elastic tension, which plays a buffering role. The elastic element 72 is the core component for realizing the buffering function of the buffer spring 7.
[0033] Furthermore, the ultraviolet lamp irradiation plate 8 is fixedly installed on the top of the dark box 6, with the irradiation direction facing the conveyor belt 3. When the dark box 6 descends to cover the material, the ultraviolet lamp irradiation plate 8 can emit ultraviolet light and irradiate the material, providing an ultraviolet light source for detecting pinholes in the material. It is one of the key components for realizing pinhole detection.
[0034] Furthermore, the light receiving plate 9 is located inside the base 10 and on top of the two rotating wheels 2, inside the conveyor belt. When the ultraviolet light emitted by the ultraviolet lamp irradiates the plate 8 and penetrates the pores of the material, the light receiving plate 9 can receive these ultraviolet rays and then transmit the received signals to the relevant processing equipment to determine whether there are pinhole defects in the material. It is an important component for completing the pinhole detection signal reception.
[0035] Furthermore, the slide rod 11 is vertically fixed to both sides of the base 10, and the dark box 6 has a sliding hole that matches the slide rod 11. The slide rod 11 passes through the sliding hole and slides in cooperation with it. Its function is to stabilize the sliding direction of the dark box 6, prevent the dark box 6 from deviating or shaking during the lifting process, ensure that the dark box 6 can accurately descend above the material and cover the material, and improve the stability of the equipment operation.
[0036] In practical use: the motor 1 starts, driving the rotating wheel 2 to rotate, and the conveyor belt 3 moves accordingly to transport materials. The auxiliary side wheel 4 helps the conveyor belt 3 to maintain stable operation. At the same time, the motor 1 drives the rotating shaft 5 to rotate, causing the dark box 6 to descend along the slide bar 11. Under the action of the buffer spring 7, the slider 71 slides in the groove of the dark box 6, and the elastic element 72 deforms, so that the dark box 6 is in close contact with the material. The ultraviolet lamp irradiation plate 8 emits ultraviolet light to irradiate the material. If there is a pinhole in the material, the ultraviolet light penetrates and is received by the light receiving plate 9, realizing pinhole detection.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A UV fiber optic pinhole detector, characterized in that: The system includes a base (10), a motor (1), a rotating wheel (2), a conveyor belt (3), a rotating shaft (5), a dark box (6), a buffer spring (7), an ultraviolet lamp irradiation plate (8), a light receiving plate (9), and a slide bar (11). The motor (1) is fixed on the base (10), and its output end drives the rotating wheel (2) to rotate, which in turn drives the conveyor belt (3) fitted on the rotating wheel (2) to transport materials. Auxiliary side wheels (4) are provided on both sides of the conveyor belt (3). The rotating shaft (5) connected to the end of the motor (1) is buffered. The spring component (7) is connected to the dark box (6) to realize the synchronous movement of the dark box (6) and the conveyor belt (3); the buffer spring component (7) includes a slider (71) that is rotatably connected to the rotating shaft (5) and an elastic component (72) that connects the slider (71) and the groove of the dark box (6). The slider (71) is provided with a dovetail groove. The dark box (6) is fitted on the sliding rods (11) on both sides of the base (10) to stabilize the sliding direction. The ultraviolet lamp irradiation plate (8) on its top and the light receiving plate (9) between the rotating wheel (2) cooperate to realize pinhole detection.
2. The UV fiber optic pinhole detector according to claim 1, characterized in that: The number of the rollers (2) is two, the two rollers (2) are arranged in parallel and opposite to each other, and the conveyor belt (3) is looped around the two rollers (2).
3. The UV fiber optic pinhole detector according to claim 1, characterized in that: The number of auxiliary side wheels (4) corresponds one-to-one with the two sides of the conveyor belt (3). The auxiliary side wheels (4) roll in contact with the side of the conveyor belt (3) to help the conveyor belt (3) maintain stable operation.
4. The UV fiber optic pinhole detector according to claim 1, characterized in that: The elastic element (72) is a spring, and the axial direction of the spring is consistent with the lifting direction of the dark box (6).
5. The UV fiber optic pinhole detector according to claim 1, characterized in that: The ultraviolet lamp irradiation plate (8) is fixedly connected to the top of the dark box (6), and the irradiation direction of the ultraviolet lamp irradiation plate (8) is towards the conveyor belt (3).
6. The UV fiber optic pinhole detector according to claim 1, characterized in that: The light receiving plate (9) is located above the conveyor belt (3).
7. The UV fiber optic pinhole detector according to claim 1, characterized in that: The slide rod (11) is vertically fixed on the base (10). The dark box (6) has a sliding hole that matches the slide rod (11) on its periphery. The slide rod (11) passes through the sliding hole and slides in cooperation with the sliding hole.