Optical fiber coating stripping device for quality inspection

Abstract

The present invention relates to the field of optical fiber quality inspection, and specifically to a coating stripping device for optical fiber quality inspection, comprising a wiping mechanism, a moving component for driving an optical fiber preform rod to pass through the wiping mechanism is provided on the side of the wiping mechanism, the wiping mechanism is provided with a first wiping component and a second wiping component, the first wiping component and the second wiping component are both arranged on a fixed frame, the first wiping component and the second wiping component are relative to each other and staggered up and down, and a clamping component for driving the first wiping component and the second wiping component to move synchronously and relatively is provided on the fixed frame. The present invention enables the coating layer of the optical fiber preform rod to be stripped by the first wiping component and the second wiping component when the optical fiber preform rod is moving through the contact between the first wiping component and the second wiping component and the optical fiber preform rod, thereby facilitating the quality inspection of the optical fiber preform rod, achieving a better quality inspection effect of the optical fiber preform rod, and reducing manual labor.

Description

Technical Field

[0001] The present invention relates to the field of optical fiber quality inspection, and in particular to a coating stripping device for optical fiber quality inspection. Background Art

[0002] During the optical fiber production process, the optical fiber surface needs to be coated to protect the optical fiber surface from moisture and external force abrasion, to give the optical fiber improved anti-microbending performance, to reduce the additional loss of optical fiber microbending, or to facilitate optical fiber identification. However, if the optical fiber coating is not cured well, the expected purpose will not be achieved. Traditional optical fiber coating detection equipment is offline detection of the START end and END end, and cannot randomly detect the quality of the MIDDLE part. If there is a defect in the MIDDLE part, it can generally only be found in the secondary coating part. This delayed quality defect is irreversible and will cause batch scrapping, resulting in quality control difficulties, inflated production costs and other problems.

[0003] The traditional method of inspecting the coating is manual wiping and visual inspection, which has major flaws. First, manual wiping is greatly affected by the experience, mentality, and technical level of the inspector, and the wiping strength varies from person to person, so the inspection quality is not stable enough. Secondly, setting up special inspection posts will cause waste of personnel and increase the cost of optical fiber manufacturing. More importantly, manual inspection is inefficient. If the operator is not properly protected, the wiping agent will also affect the operator's health.

[0004] Existing improvements also use a clamping device to wipe the optical fiber, but all of them use constant force for reciprocating wiping, and cannot control the clamping force according to the coating effect of different viscosity materials on the optical fiber. In addition, the wiping needs to be done offline to test the coating quality separately, and online continuous monitoring cannot be achieved.

[0005] The currently disclosed Chinese patent CN202011426868.X discloses a fiber optic wiping mechanism and an online detection device for optical fiber coating quality detection, an optical fiber mechanical clamping platform, including an upper platform and a lower platform, for clamping the optical fiber to be tested; wiping paper is provided on the opposite surfaces of the upper platform and the lower platform; the wiping paper is dust-free wiping paper soaked in a special wiping agent, and a pneumatic finger cylinder is used to control the opening and closing of the optical fiber mechanical clamping platform; an X-axis slide, the movable end of which is connected to the upper platform to adjust the clamping force between the upper platform and the lower platform; a miniature tensile sensor is connected to the lower platform to measure the pressure of the lower platform, wherein the optical fiber wiping mechanism also includes a general mounting bracket, and the lower platform is fixed to the optical fiber wiping station through the general mounting bracket; the pneumatic finger cylinder is fixed on the general mounting bracket, and the movable end is connected to the upper platform through the cylinder connecting plate; the miniature tensile sensor is fixed under the lower platform through the sensor fixing plate.

[0006] According to the above-mentioned patent, the optical fiber wiping mechanism of the patent can adjust the wiping force through the X-slide, and the wiping force is calibrated by the screw micrometer in conjunction with the pressure sensor display data. However, the patent cannot be adjusted for optical fiber preforms of different sizes, which is not conducive to comprehensive wiping of the coating layer of the optical fiber preform. The wiping force cannot be adjusted. Therefore, there is a need for a stripping device that can adjust the wiping according to the size of the optical fiber preform. Summary of the Invention

[0007] In response to the problems existing in the existing technology, a coating stripping device for optical fiber quality inspection is provided. The present invention enables the coating of the optical fiber preform to be stripped by the first wiping component and the second wiping component when the optical fiber preform moves, thereby facilitating the quality inspection of the optical fiber preform, achieving better quality inspection results for the optical fiber preform, and reducing manual labor.

[0008] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0009] The present invention provides a coating stripping device for optical fiber quality inspection, comprising a wiping mechanism for stripping a coating on a surface of an optical fiber preform. The optical fiber preform moves relative to the wiping mechanism. A moving assembly is provided on the side of the wiping mechanism for driving the optical fiber preform to pass through the wiping mechanism. The wiping mechanism comprises a first wiping assembly and a second wiping assembly for wiping the coating of the optical fiber preform. The first wiping assembly and the second wiping assembly are both disposed on a fixed frame. The first wiping assembly and the second wiping assembly are disposed relative to each other and staggered vertically. The first wiping assembly contacts one side of the optical fiber preform, and the second wiping assembly contacts the other side of the optical fiber preform. The first wiping assembly and the second wiping assembly are capable of relative movement on the fixed frame. A clamping assembly is provided on the fixed frame for driving the first wiping assembly and the second wiping assembly to move synchronously and relative to each other. When the first wiping assembly and the second wiping assembly both contact the optical fiber preform, the optical fiber preform is gradually stripped of its coating as it passes between the first wiping assembly and the second wiping assembly.

[0010] Preferably, the first wiping assembly and the second wiping assembly are respectively provided with a first flexible belt and a second flexible belt, the first flexible belt and the second flexible belt are symmetrically and staggeredly arranged on both sides of the fixed frame, the surface of the first flexible belt facing the second flexible belt is provided with a first wiping paper, and the surface of the second flexible belt facing the first flexible belt is provided with a second wiping paper, when the first flexible belt and the second flexible belt are relatively close, the first wiping paper and the second wiping paper are both in contact with the coating layer of the optical fiber preform rod.

[0011] Preferably, the first wiping assembly and the second wiping assembly are also provided with a tensioning member for connecting the corresponding first flexible belt and the second flexible belt, both sides of the first flexible belt and the second flexible belt are surrounded by the tensioning member, the tensioning member can move on the fixed frame, and the moving direction of the two tensioning members is horizontally toward the center of the fixed frame, and each tensioning member on the fixed frame is also provided with a guide member for guiding its direction.

[0012] Preferably, the tensioning member is provided with a rotating shaft, and there are two rotating shafts, both of which are in a vertical state. The two sides of the first flexible belt and the second flexible belt are respectively wrapped around the corresponding rotating shafts, and the first flexible belt and the second flexible belt are fixedly connected to the rotating shaft. A sleeve is provided on each rotating shaft, and the sleeve is connected to the guide member. A torsion spring is provided in the sleeve and is sleeved on the rotating shaft, and the two ends of the torsion spring are respectively fixedly connected to the rotating shaft and the sleeve.

[0013] Preferably, the guide member is provided with a slider, two sleeves are fixedly connected to the slider, the slider is a semi-annular structure, the opening of the slider faces the center of the fixed frame, the slider is provided with a guide rod extending horizontally outward, and the fixed frame is provided with a guide block for the guide rod to move.

[0014] Preferably, a pair of clamping assemblies are provided, and the two clamping assemblies are symmetrically arranged on both sides of the fixed frame. The clamping assembly is provided with a rotating disk, and the rotating disk is rotatably arranged on the fixed frame. A first connecting rod and a second connecting rod are connected between each sleeve corresponding to the rotating disk. A driving member for driving the rotating disk to rotate is provided on the fixed frame. When the rotating disk rotates, the first connecting rod and the second connecting rod are respectively in a state of pushing the corresponding sleeve to move toward the center of the fixed frame.

[0015] Preferably, a first connecting shaft and a second connecting shaft are provided at both ends of the first connecting rod and the second connecting rod, and an axial connection portion symmetrically provided on the rotating disk is rotatably connected to the corresponding first connecting shaft. Two groove plates are provided on the sleeve along its axial direction and are slidingly connected to the corresponding second connecting shaft, and a channel for the second connecting shaft to move is formed between the two groove plates.

[0016] Preferably, the driving member is provided with a rotating motor, an axle seat is provided at a position corresponding to the rotating disk on the fixed frame, a bearing is provided between the rotating disk and the axle seat, the rotating motor is fixedly arranged on the axle seat, and the output shaft of the rotating motor is fixedly connected to the center of the rotating disk.

[0017] Preferably, the movable assembly is provided with an electric upper ejector rod and an electric lower ejector rod, the electric upper ejector rod is coaxially arranged above the fixed frame, the electric lower ejector rod and the electric upper ejector rod are coaxially arranged below the fixed frame, and a gap is left between the electric upper ejector rod and the electric lower ejector rod for placing the optical fiber preform rod.

[0018] Preferably, the electric lower ejector rod is a hollow structure with an opening at the lower end. The surface of the electric lower ejector rod has a liquid spraying port connected to the interior thereof, and the opening of the electric lower ejector rod is connected to a connecting pipe.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The present invention enables the first wiping assembly and the second wiping assembly to contact the optical fiber preform rod, so that the coating layer of the optical fiber preform rod can be stripped by the first wiping assembly and the second wiping assembly when the optical fiber preform rod moves, thereby facilitating the quality inspection of the optical fiber preform rod, achieving a better quality inspection effect for the optical fiber preform rod, and reducing manual labor.

[0021] 2. In the present invention, the first wiping paper and the second wiping paper are brought into contact with the coating layer of the optical fiber preform after being stained with a wiping agent. As the first flexible belt and the second flexible belt surround the optical fiber preform, the coating layer of the optical fiber preform can be stripped off by the wiping agent, thereby realizing quality inspection of the optical fiber preform and improving the quality inspection effect.

[0022] 3. The present invention connects the first flexible belt and the second flexible belt on the tensioning member so that the first flexible belt and the second flexible belt have an elastic connection effect. When they are in contact with the optical fiber preform, the first wiping paper and the second wiping paper are caused to wrap around the optical fiber preform. When returning to normal, it is only necessary to move the first flexible belt and the second flexible belt away from the optical fiber preform so that they can return to their original state under the action of the tensioning member, thereby achieving effective surrounding of the optical fiber preform by the first flexible belt and the second flexible belt, thereby achieving full contact between the first wiping paper and the second wiping paper and the optical fiber preform, and ensuring that the coating layer of the optical fiber preform can be completely stripped off. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of a coating stripping device for optical fiber quality inspection;

[0024] Figure 2 This is a front view of a coating stripping device for optical fiber quality inspection;

[0025] Figure 3 yes Figure 2 A three-dimensional structural cross-sectional view at AA;

[0026] Figure 4 This is a three-dimensional structural diagram of the fixed frame, wiping mechanism and clamping assembly of the coating stripping device for optical fiber quality inspection;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the wiping mechanism of the coating stripping device for optical fiber quality inspection;

[0028] Figure 6It is a cross-sectional view of the wiping mechanism of the coating stripping device for optical fiber quality inspection;

[0029] Figure 7 This is a front view of the fixed frame, wiping mechanism and clamping assembly of the coating stripping device for optical fiber quality inspection;

[0030] Figure 8 This is a top view of the fixed frame, wiping mechanism, and clamping assembly of the coating stripping device for optical fiber quality inspection;

[0031] Figure 9 yes Figure 8 Cross-sectional view at BB;

[0032] Figure 10 yes Figure 8 Cross-sectional view of the three-dimensional structure at CC.

[0033] The numbers in the figure are:

[0034] 1-fiber preform; 2-wiping mechanism; 21-first wiping assembly; 211-first flexible belt; 212-first wiping paper; 213-tensioning member; 2131-rotating shaft; 2132-sleeve; 2133-torsion spring; 214-guide member; 2141-slider; 2142-guide rod; 2143-guide block; 22-second wiping assembly; 221-second flexible belt; 222-second wiping paper; 3-moving assembly; 31-electric upper ejector; 32-electric lower ejector; 321-liquid spray port; 322-connecting pipe; 4-fixed frame; 5-clamping assembly; 51-rotating disk; 511-axial connection; 52-first connecting rod; 521-first connecting shaft; 522-second connecting shaft; 523-slot plate; 53-second connecting rod; 54-driving member; 541-rotating motor; 542-axle seat; 543-bearing. Implementation Method

[0035] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] See also Figure 1-Figure 5As shown, the coating stripping device for optical fiber quality inspection includes a wiping mechanism 2 for stripping the coating layer on the surface of the optical fiber preform 1. The optical fiber preform 1 moves relative to the wiping mechanism 2. A moving component 3 is provided on the side of the wiping mechanism 2 for driving the optical fiber preform 1 to pass through the wiping mechanism 2. The wiping mechanism 2 is provided with a first wiping component 21 and a second wiping component 22 for wiping the coating layer of the optical fiber preform 1. The first wiping component 21 and the second wiping component 22 are both provided on a fixed frame 4. The first wiping component 21 and the second wiping component 22 are opposite to each other and staggered up and down. The first wiping assembly 21 is in contact with one side of the optical fiber preform 1, and the second wiping assembly 22 is in contact with the other side of the optical fiber preform 1. The first wiping assembly 21 and the second wiping assembly 22 can move relative to each other on the fixed frame 4. The fixed frame 4 is provided with a clamping assembly 5 for driving the first wiping assembly 21 and the second wiping assembly 22 to move synchronously and relatively. When the first wiping assembly 21 and the second wiping assembly 22 are both in contact with the optical fiber preform 1, the optical fiber preform 1 is in a state of having its coating gradually stripped off when passing between the first wiping assembly 21 and the second wiping assembly 22.

[0037] When quality inspection is performed on the optical fiber preform 1, first, the optical fiber preform 1 is placed on the moving assembly 3, and then the wiping mechanism 2 is started. Under the drive of the clamping assembly 5, the first wiping assembly 21 and the second wiping assembly 22 are synchronously moved toward the direction of the optical fiber preform 1 until the first wiping assembly 21 and the second wiping assembly 22 are in contact with the optical fiber preform 1. The first wiping assembly 21 is in contact with half of the surface of the optical fiber preform 1, and the second wiping assembly 22 is in contact with the surface of the other half of the optical fiber preform 1. As the moving assembly 3 drives the optical fiber preform 1 to reciprocate up and down, the optical fiber preform 1 is pushed against the first wiping assembly 21 and the second wiping assembly 22 is pushed against the surface of the other half of the optical fiber preform 1. The first wiping assembly 21 and the second wiping assembly 22 move between them. Since the first wiping assembly 21 and the second wiping assembly 22 are both attached to the surface of the optical fiber preform 1, the movement of the optical fiber preform 1 causes the coating layer on its surface to be stripped off, so that its quality can be inspected by existing inspection equipment. As the optical fiber preform 1 moves back and forth, the entire surface of the optical fiber preform 1 is contacted by the first wiping assembly 21 and the second wiping assembly 22, ensuring that the optical fiber preform 1 can be effectively and completely inspected for quality. Compared with manual stripping of the coating layer, the quality inspection effect is more effectively improved and human labor is reduced.

[0038] See also Figure 5-Figure 8As shown, the first wiping assembly 21 and the second wiping assembly 22 are respectively provided with a first flexible belt 211 and a second flexible belt 221, which are symmetrically and staggeredly arranged on both sides of the fixed frame 4, and a first wiping paper 212 is provided on the surface of the first flexible belt 211 facing the second flexible belt 221, and a second wiping paper 222 is provided on the surface of the second flexible belt 221 facing the first flexible belt 211. When the first flexible belt 211 and the second flexible belt 221 are relatively close, the first wiping paper 212 and the second wiping paper 222 are both in contact with the coating layer of the optical fiber preform 1.

[0039] When the first wiping assembly 21 and the second wiping assembly 22 move toward the optical fiber preform 1, until the first wiping paper 212 and the second wiping paper 222 come into contact with the optical fiber preform 1, the clamping assembly 5 continues to drive the first flexible belt 211 and the second flexible belt 221 to move, causing the first flexible belt 211 and the second flexible belt 221 to surround the optical fiber preform 1. By surrounding the optical fiber preform 1 with the first flexible belt 211 and the second flexible belt 221, the surface of the optical fiber preform 1 can be completely in contact with the first wiping paper 212 and the second wiping paper 222 when moving. The first wiping paper 212 and the second wiping paper 222 are both soaked with wiping agent. Therefore, the first wiping paper 212 and the second wiping paper 222 come into contact with the coating layer of the optical fiber preform 1, thereby being able to peel off the coating layer.

[0040] See also Figure 2 and Figure 5 As shown, the first wiping assembly 21 and the second wiping assembly 22 are also provided with a tensioning member 213 for connecting the corresponding first flexible belt 211 and the second flexible belt 221. Both sides of the first flexible belt 211 and the second flexible belt 221 are surrounded by the tensioning member 213. The tensioning member 213 can move on the fixed frame 4. The moving direction of the two tensioning members 213 is horizontally toward the center of the fixed frame 4, and each tensioning member 213 on the fixed frame 4 is also provided with a guide member 214 for guiding its direction.

[0041] When the first flexible belt 211 and the second flexible belt 221 are surrounding the optical fiber preform 1, the clamping assembly 5 drives the tensioning member 213 to move, and the tensioning member 213 moves toward the optical fiber preform 1 under the guidance of the guide member 214, thereby driving the first flexible belt 211 and the second flexible belt 221 to move. Under normal conditions, the first flexible belt 211 and the second flexible belt 221 are in a flat state under the action of the tensioning member 213, and when the first wiping paper 212 and the second wiping paper 222 are in contact with the optical fiber preform 1 and then wrapped around it, the first flexible belt 211 and the second flexible belt 221 are in an arc-shaped state and surround the optical fiber preform 1 after being subjected to pressure.

[0042] See also Figure 5 and Figure 6 As shown, the tensioning member 213 is provided with a rotating shaft 2131, and there are two rotating shafts 2131. Both rotating shafts 2131 are in a vertical state. The two sides of the first flexible belt 211 and the second flexible belt 221 are respectively wrapped around the corresponding rotating shafts 2131. The first flexible belt 211 and the second flexible belt 221 are fixedly connected to the rotating shaft 2131. A sleeve 2132 is sleeved on each rotating shaft 2131, and the sleeve 2132 is connected to the guide member 214. A torsion spring 2133 is provided in the sleeve 2132 and is sleeved on the rotating shaft 2131. The two ends of the torsion spring 2133 are respectively fixedly connected to the rotating shaft 2131 and the sleeve 2132.

[0043] When the first flexible belt 211 and the second flexible belt 221 are connected to the corresponding two rotating shafts 2131, the torsion spring 2133 is in a normal state, and the first flexible belt 211 and the second flexible belt 221 are in a flat state. When the first wiping paper 212 and the second wiping paper 222 are wrapped on the coating layer of the optical fiber preform 1, the first flexible belt 211 and the second flexible belt 221 are in an arc state, and the torsion spring 2133 is in a torsion state at this time. The rotating shaft 2131 rotates in the sleeve 2132 according to the state of the corresponding first flexible belt 211 or the second flexible belt 221, thereby realizing the effective wrapping of the optical fiber preform 1 by the first wiping paper 212 and the second wiping paper 222.

[0044] See also Figure 5 and Figure 10 As shown, the guide member 214 is provided with a slider 2141, and two sleeves 2132 are fixedly connected to the slider 2141. The slider 2141 is a semi-annular structure, and the opening of the slider 2141 is facing the center of the fixed frame 4. The slider 2141 is provided with a guide rod 2142 extending horizontally outward, and the fixed frame 4 is provided with a guide block 2143 for the guide rod 2142 to move.

[0045] When the sleeve 2132 moves through the clamping assembly 5, the sleeve 2132 drives the slider 2141 to move. Since the slider 2141 moves on the guide block 2143 through the guide rod 2142, it has a guiding effect on the movement of the sleeve 2132, ensuring that the first flexible belt 211 and the second flexible belt 221 both move toward the direction of the optical fiber preform 1.

[0046] See also Figure 2 、 Figure 3 and Figure 10As shown, a pair of clamping assemblies 5 are provided, and the two clamping assemblies 5 are symmetrically arranged on both sides of the fixed frame 4. The clamping assembly 5 is provided with a rotating disk 51, and the rotating disk 51 is rotatably arranged on the fixed frame 4. A first connecting rod 52 and a second connecting rod 53 are connected between each sleeve 2132 corresponding to the rotating disk 51. A driving member 54 is provided on the fixed frame 4 to drive the rotating disk 51 to rotate. When the rotating disk 51 rotates, the first connecting rod 52 and the second connecting rod 53 are respectively in a state of pushing the corresponding sleeve 2132 to move toward the center of the fixed frame 4.

[0047] When the clamping assembly 5 is driven, the driving member 54 drives the rotating disk 51 to rotate. Since the rotating disk 51 and the corresponding two sleeves 2132 are rotatably connected through the first connecting rod 52 and the second connecting rod 53, the rotation of the rotating disk 51 will drive the first connecting rod 52 and the second connecting rod 53 to move. The first connecting rod 52 and the second connecting rod 53 both push the corresponding sleeves 2132 to move toward the direction of the optical fiber preform 1 until the first wiping paper 212 and the second wiping paper 222 surround the surface of the optical fiber preform 1.

[0048] See also Figure 10 As shown, both ends of the first connecting rod 52 and the second connecting rod 53 are provided with a first connecting shaft 521 and a second connecting shaft 522, and the rotating disk 51 is symmetrically provided with an axial connection portion 511 that is rotatably connected to the corresponding first connecting shaft 521, and the sleeve 2132 is provided with two groove plates 523 that are slidingly connected to the corresponding second connecting shaft 522 along its axial direction, and a channel for the second connecting shaft 522 to move is formed between the two groove plates 523.

[0049] When the rotation of the rotating disk 51 drives the first connecting rod 52 and the second connecting rod 53 to move, the first connecting rod 52 and the second connecting rod 53 move in the channel between the two corresponding slot plates 523 through the second connecting shaft 522, thereby pushing the sleeve 2132 to move.

[0050] See also Figure 3 and Figure 7 As shown, the driving member 54 is provided with a rotating motor 541, and a shaft seat 542 is provided at a position corresponding to the rotating disk 51 on the fixed frame 4. A bearing 543 is provided between the rotating disk 51 and the shaft seat 542. The rotating motor 541 is fixedly arranged on the shaft seat 542, and the output shaft of the rotating motor 541 is fixedly connected to the center of the rotating disk 51.

[0051] When the driving member 54 is driven, the rotating disk 51 is driven to rotate via the rotating motor 541 .

[0052] See also Figure 1-Figure 3As shown, the movable assembly 3 is provided with an electric upper ejector rod 31 and an electric lower ejector rod 32. The electric upper ejector rod 31 is coaxially arranged above the fixed frame 4, and the electric lower ejector rod 32 is coaxially arranged below the fixed frame 4 with the electric upper ejector rod 31. A gap is left between the electric upper ejector rod 31 and the electric lower ejector rod 32 for placing the optical fiber preform rod 1.

[0053] When the moving component 3 drives the optical fiber preform 1 to move, the optical fiber preform 1 is placed between the electric upper ejector 31 and the electric lower ejector 32. As the electric upper ejector 31 and the electric lower ejector 32 move in the same direction at the same time, the optical fiber preform 1 is driven to move. As the optical fiber preform 1 moves between the first wiping paper 212 and the second wiping paper 222, the coating layer on its surface is peeled off, thereby completing the quality inspection.

[0054] See also Figure 3 As shown, the electric lower ejector rod 32 is a hollow structure with an open lower end. The surface of the electric lower ejector rod 32 has a liquid spraying port 321 connected to the interior thereof. The opening of the electric lower ejector rod 32 is connected to a connecting pipe 322 .

[0055] Before the electric lower ejector rod 32 contacts the optical fiber preform rod 1, the electric lower ejector rod 32 is located between the first wiping paper 212 and the second wiping paper 222. The first wiping paper 212 and the second wiping paper 222 are wrapped around the electric lower ejector rod 32. The wiping agent is introduced into the space between the electric lower ejector rod 32 through the connecting tube 322, so that the wiping agent is sprayed onto the first wiping paper 212 and the second wiping paper 222 along the liquid spray port 321, so that the first wiping paper 212 and the second wiping paper 222 are stained with the wiping agent, which effectively strips the coating layer of the optical fiber preform rod 1.

[0056] The present invention enables the first wiping assembly 21 and the second wiping assembly 22 to contact the optical fiber preform 1, so that the coating layer of the optical fiber preform 1 can be stripped off by the first wiping assembly 21 and the second wiping assembly 22 when the optical fiber preform 1 moves, thereby facilitating the quality inspection of the optical fiber preform 1, achieving a better quality inspection effect for the optical fiber preform 1, and reducing manual labor.

[0057] The above embodiments merely represent one or several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A coating stripping device for optical fiber quality inspection, comprising a wiping mechanism (2) for stripping a coating layer on the surface of an optical fiber preform (1), the optical fiber preform (1) moving relative to the wiping mechanism (2), and a moving component (3) for driving the optical fiber preform (1) to pass through the wiping mechanism (2) provided on the side of the wiping mechanism (2); It is characterized in that The wiping mechanism (2) is provided with a first wiping assembly (21) and a second wiping assembly (22) for wiping the coating layer of the optical fiber preform (1). The first wiping assembly (21) and the second wiping assembly (22) are both arranged on a fixed frame (4). The first wiping assembly (21) and the second wiping assembly (22) are arranged relative to each other and staggered up and down. The first wiping assembly (21) contacts one side of the optical fiber preform (1), the second wiping assembly (22) contacts the other side of the optical fiber preform (1), and the second wiping assembly (22) contacts the other side of the optical fiber preform (1). A wiping assembly (21) and a second wiping assembly (22) are capable of relative movement on a fixed frame (4); a clamping assembly (5) is provided on the fixed frame (4) for driving the first wiping assembly (21) and the second wiping assembly (22) to move synchronously and relatively; when the first wiping assembly (21) and the second wiping assembly (22) are in contact with the optical fiber preform (1), the optical fiber preform (1) is in a state of having its coating layer gradually stripped off when passing between the first wiping assembly (21) and the second wiping assembly (22); The first wiping assembly (21) and the second wiping assembly (22) are respectively provided with a first flexible belt (211) and a second flexible belt (221); the first flexible belt (211) and the second flexible belt (221) are symmetrically and staggeredly arranged on both sides of the fixed frame (4); a first wiping paper (212) is provided on the surface of the first flexible belt (211) facing the second flexible belt (221); and a second wiping paper (222) is provided on the surface of the second flexible belt (221) facing the first flexible belt (211); when the first flexible belt (211) and the second flexible belt (221) are relatively close to each other, the first wiping paper (212) and the second wiping paper (222) are both in contact with the coating layer of the optical fiber preform (1); The first wiping assembly (21) and the second wiping assembly (22) are each provided with a tensioning member (213) for connecting the corresponding first flexible belt (211) and the second flexible belt (221). Both sides of the first flexible belt (211) and the second flexible belt (221) are surrounded by the tensioning member (213). The tensioning member (213) is movable on the fixed frame (4). The moving directions of the two tensioning members (213) are both horizontally toward the center of the fixed frame (4). In addition, a guide member (214) for guiding the direction of each tensioning member (213) is provided on the fixed frame (4). The tensioning member (213) is provided with a rotating shaft (2131), and there are two rotating shafts (2131). Both rotating shafts (2131) are in a vertical state. The two sides of the first flexible belt (211) and the second flexible belt (221) are respectively wrapped around the corresponding rotating shafts (2131). The first flexible belt (211) and the second flexible belt (221) are fixedly connected to the rotating shafts (2131). Each rotating shaft (2131) is provided with a sleeve (2132). The sleeve (2132) is connected to the guide member (214). A torsion spring (2133) is provided in the sleeve (2132) and is sleeved on the rotating shaft (2131). The two ends of the torsion spring (2133) are respectively fixedly connected to the rotating shaft (2131) and the sleeve (2132). A pair of clamping assemblies (5) are provided, and the two clamping assemblies (5) are symmetrically arranged on both sides of the fixed frame (4). The clamping assemblies (5) are provided with a rotating disk (51), and the rotating disk (51) is rotatably arranged on the fixed frame (4). A first connecting rod (52) and a second connecting rod (53) are connected between each sleeve (2132) corresponding to the rotating disk (51). A driving member (54) for driving the rotating disk (51) to rotate is provided on the fixed frame (4). When the rotating disk (51) rotates, the first connecting rod (52) and the second connecting rod (53) are respectively in a state of pushing the corresponding sleeve (2132) to move toward the center of the fixed frame (4); A first connecting shaft (521) and a second connecting shaft (522) are provided at both ends of the first connecting rod (52) and the second connecting rod (53). A shaft connection portion (511) symmetrically provided on the rotating disk (51) is rotatably connected to the corresponding first connecting shaft (521). Two slot plates (523) slidably connected to the corresponding second connecting shaft (522) are provided on the sleeve (2132) along its axial direction. A channel for the second connecting shaft (522) to move is formed between the two slot plates (523).

2. The optical fiber coating stripping device for quality inspection according to claim 1, characterized in that: The guide member (214) is provided with a slider (2141), and two sleeves (2132) are fixedly connected to the slider (2141). The slider (2141) has a semi-annular structure, and the opening of the slider (2141) faces the center of the fixed frame (4). The slider (2141) is provided with a guide rod (2142) extending horizontally outward, and the fixed frame (4) is provided with a guide block (2143) for the guide rod (2142) to move.

3. The optical fiber coating stripping device for quality inspection according to claim 1, characterized in that: The driving member (54) is provided with a rotating motor (541), a shaft seat (542) is provided at a position corresponding to the rotating disk (51) on the fixed frame (4), a bearing (543) is provided between the rotating disk (51) and the shaft seat (542), the rotating motor (541) is fixedly arranged on the shaft seat (542), and the output shaft of the rotating motor (541) is fixedly connected to the center of the rotating disk (51).

4. The optical fiber coating stripping device for quality inspection according to claim 1, characterized in that: The moving assembly (3) is provided with an electric upper ejector rod (31) and an electric lower ejector rod (32). The electric upper ejector rod (31) is coaxially arranged above the fixed frame (4). The electric lower ejector rod (32) is coaxially arranged below the fixed frame (4) with the electric upper ejector rod (31). A gap is left between the electric upper ejector rod (31) and the electric lower ejector rod (32) for placing the optical fiber preform rod (1).

5. The optical fiber coating stripping device for quality inspection according to claim 4, characterized in that: The electric lower ejector rod (32) is a hollow structure with an open lower end. The surface of the electric lower ejector rod (32) is provided with a liquid spraying port (321) connected to the interior thereof. The opening of the electric lower ejector rod (32) is connected to a connecting pipe (322).

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