Optical fiber cleaning device

Abstract

The utility model relates to the technical field of optical fiber production and processing, in particular to an optical fiber cleaning device. The optical fiber cleaning device comprises a cylindrical optical fiber channel, one end of the optical fiber channel is in butt joint with an optical fiber drawing device, a front-section cavity, a cleaning cavity, a cooling cavity, a functional cavity and a rear-section cavity are arranged in the optical fiber channel from one end to the other end, a cleaning assembly is arranged in the cleaning cavity, a cooling assembly is arranged in the cooling cavity, and the functional cavity is provided with a cooling cavity. A diameter measuring device is arranged in the functional cavity, a spraying device is arranged in the reprocessing cavity, and through holes for optical fibers to penetrate through are formed in the centers of the ends of the front section cavity, the cleaning cavity, the cooling cavity, the functional cavity and the rear section cavity. The graphite dust collector has the advantages that the structural design is simple and reasonable, the independent cavity design enables dust particles to be effectively cleaned in the cleaning cavity, airflow carrying graphite dust cannot flow into other cavities to cause secondary pollution, and the cleaning effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical fiber production and processing, especially to an optical fiber cleaning device. BACKGROUND

[0002] In the production process of optical fiber, generally involves the link of drawing in the optical fiber drawing furnace, because the optical fiber drawing process has a large number of graphite parts, it is necessary to heat and melt the end of the optical fiber preform rod through the graphite parts, at the same time, the optical fiber preform rod needs to move in the optical fiber drawing furnace, and the end of the optical fiber preform rod is drawn to a certain diameter of optical fiber at a certain speed, so as to obtain bare optical fiber. After the bare optical fiber is processed in the subsequent processing link, the optical fiber is formed. Because the graphite parts will produce part of the graphite ash, the graphite ash will adhere to the surface of the optical fiber during the optical fiber drawing process, thereby affecting the cleanliness of the bare optical fiber.

[0003] At present, a kind of optical fiber cleaning device is disclosed in Chinese patent (CN216728703U), which forms convection (counterflow) with the conveying after optical fiber drawing by the way of air inlet at the outlet end of shell and air blowing to the inlet end, so as to clean the optical fiber, but the structure has the following defects:

[0004] The inside of the shell is a through cavity, and the airflow path is formed between the two ends, so that the graphite ash on the surface of the optical fiber can be carried away, but in such a long way, it is difficult to ensure that the graphite ash will not be left in the distance measuring instrument or the cavity, that is, the entire shell inside may form a contaminated environment, and over time, the shell inside will form a non-clean cavity, which seriously affects the cleaning of the optical fiber and may also contaminate the optical fiber.

[0005] Therefore, it is necessary to develop an optical fiber cleaning device to overcome the above technical problems. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is to provide an optical fiber cleaning device that effectively overcomes the defects of the prior art.

[0007] The technical solution for solving the above technical problem of the utility model is as follows:

[0008] An optical fiber cleaning device, comprising a cylindrical optical fiber channel, one end of the optical fiber channel is connected to an optical fiber drawing device, a front cavity, a cleaning cavity, a cooling cavity, a functional cavity and a rear cavity are respectively arranged inside the optical fiber channel from one end to the other end, a cleaning assembly is arranged in the cleaning cavity, a cooling assembly is arranged in the cooling cavity, a diameter measuring device is arranged in the functional cavity, and a through hole for the optical fiber to pass through is arranged at the center of the end of the front cavity, the cleaning cavity, the cooling cavity, the functional cavity and the rear cavity.

[0009] On the basis of the above technical solutions, the utility model further can make improvement as follows.

[0010] Further, the front section cavity and the rear section cavity are respectively provided with a fiber conveying guide assembly.

[0011] Further, the fiber conveying guide assembly comprises at least two groups of guide wheels, each group of the guide wheels is provided with two guide wheels, and the two guide wheels of each group are arranged on the inner wall of the front section cavity or the rear section cavity through a wheel frame, the two guide wheels of each group are close to each other and form a guide channel for the fiber to pass through between the two guide wheels, and the at least two groups of guide wheels are distributed along the conveying direction of the light.

[0012] Further, the fiber conveying guide assembly comprises two groups of guide wheels, and the two groups of guide wheels are distributed in a cross shape on a circumference.

[0013] Further, the cleaning assembly comprises a ring-shaped connecting air pipe and a main air pipe, the connecting air pipe is arranged on the inner wall of one end of the cleaning cavity close to the cooling cavity and surrounds the through hole, a plurality of air blowing nozzles in communication with the connecting air pipe are arranged at equal intervals on the connecting air pipe, one end of the main air pipe is in communication with the connecting air pipe, the other end of the main air pipe penetrates out of the fiber channel and is connected with a gas conveying device, an exhaust hole is arranged on the side wall of the connecting air pipe close to the front section cavity, and a dust suction device is connected to the exhaust hole through a pipeline.

[0014] Further, the cooling assembly comprises a ring-shaped refrigeration chamber arranged on the inner wall of the cooling cavity, and a refrigerant medium inlet pipeline and a refrigerant medium outlet pipeline in communication with the inside of the refrigeration chamber are arranged at both ends of the side wall of the cooling cavity.

[0015] Further, the cooling assembly further comprises a refrigerant tank and a pump body, the outlet of the refrigerant tank is connected to the inlet of the pump body through a pipeline, and the outlet of the pump body is connected to the refrigerant medium inlet pipeline.

[0016] The cooling assembly comprises a cold air inlet arranged at one end of the side wall of the cooling cavity and a cold air outlet arranged at the other end of the side wall of the cooling cavity, and the cold air inlet and the cold air outlet are arranged on both sides of the cooling cavity.

[0017] Further, the outer surface of the cooling cavity is provided with a heat preservation layer.

[0018] The cleaning cavity is provided with an openable and closable inspection door.

[0019] The utility model has the advantages of simple and reasonable structure, and the independent cavity design can effectively clean dust particles in the cleaning cavity, the airflow carrying graphite ash cannot flow into other chambers to cause secondary pollution, and the cleaning effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the fiber optic cleaning device of this utility model;

[0021] Figure 2 This is a schematic diagram of another embodiment of the fiber optic cleaning device of this utility model;

[0022] Figure 3 This is a plan view showing the structural distribution of the optical fiber transmission and guidance assembly in the optical fiber cleaning device of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Fiber optic channel; 2. Fiber optic drawing device; 3. Diameter measuring device; 5. Fiber optic transmission and guidance assembly; 7. Gas delivery device; 8. Dust collection device; 11. Front section cavity; 12. Cleaning cavity; 13. Cooling cavity; 14. Functional cavity; 15. Rear section cavity; 51. Guide wheel; 61. Connecting air pipe; 62. Main air pipe; 63. Air nozzle; 131. Refrigeration chamber; 132. Refrigerant inlet pipeline; 133. Refrigerant outlet pipeline; 134. Cold air inlet; 135. Cold air outlet; 1311. Refrigerant box; 1312. Pump body. Detailed Implementation

[0025] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0026] Example: Figure 1 and 2 As shown, the fiber cleaning device of this embodiment includes a cylindrical fiber channel 1. One end of the fiber channel 1 is connected to a fiber drawing device 2. The fiber channel 1 is provided with a front cavity 11, a cleaning cavity 12, a cooling cavity 13, a functional cavity 14 and a rear cavity 15 from one end to the other. The cleaning cavity 12 is provided with a cleaning component, the cooling cavity 13 is provided with a cooling component, and the functional cavity 14 is provided with a diameter measuring device 3 (which can be a laser rangefinder or an ultrasonic rangefinder of the prior art). The front cavity 11, the cleaning cavity 12, the cooling cavity 13, the functional cavity 14 and the rear cavity 15 are provided with through holes for the fiber to pass through at their respective center points.

[0027] In this embodiment, the optical fiber drawing device 2 is a device of the prior art, and its specific structure and principle will not be described in detail here.

[0028] The optical fiber cleaning device of the embodiment is used in the process, the optical fiber B from the optical fiber drawing device 2 passes through the through hole at the center of the end of the front cavity 11, the cleaning cavity 12, the cooling cavity 13, the functional cavity 14 and the rear cavity 15, when passing through the cleaning cavity 12, the dust particles such as graphite ash on the surface are removed by the internal cleaning assembly, when passing through the cooling cavity 13, the cooling assembly is cooled, then the diameter is effectively measured by the diameter measuring device 3 in the functional cavity 14, and finally the rear cavity 15 is led out to the next process for processing. Since the cleaning cavity 12 is an independent cavity, during the cleaning process, the dust-containing airflow cannot enter the subsequent cleaning cavity 12, cooling cavity 13, functional cavity 14 and rear cavity 15, ensuring the cleanliness of the subsequent cavities and preventing secondary pollution. The overall structure is simple and reasonable, and the independent cavity design effectively cleans the dust in the cleaning cavity, and the airflow carrying the graphite ash cannot flow to other cavities, ensuring the cleaning effect.

[0029] In the embodiment, the front cavity 11 and the rear cavity 15 are respectively provided with optical fiber conveying guide assemblies 5. The front and rear optical fiber conveying guide assemblies 5 ensure the stability and direction of the overall conveying process of the optical fiber, and ensure that the optical fiber does not shake greatly during conveying to cause breakage.

[0030] As a preferred embodiment, the optical fiber conveying guide assembly 5 includes at least two groups of guide wheels 51, each group of guide wheels 51 is provided with two guide wheels 51, and is mounted on the inner wall of the front cavity 11 or the rear cavity 15 through a wheel frame, the two guide wheels 51 of each group are close to each other and form a guide channel for the optical fiber to pass through, and the at least two groups of guide wheels 51 are distributed along the conveying direction of the light.

[0031] In the above embodiment, the optical fiber passes through the aperture surrounded by the wheel grooves of the two guide wheels 51 of each group (that is, the guide channel), so that the optical fiber does not shake greatly, and at the same time, ensures that the optical fiber is conveyed in the correct direction.

[0032] In the embodiment, as shown in Figure 3 The optical fiber conveying guide assembly 5 includes two groups of guide wheels 51, and the two groups of guide wheels 51 are distributed in a “cross” shape on the circumference. The distribution is reasonable, multiple directions guide the optical fiber, and the conveying is more stable.

[0033] As a preferred embodiment, the cleaning assembly comprises a ring-shaped connecting air pipe 61 and a main air pipe 62. The connecting air pipe 61 is arranged on the inner wall of the cleaning cavity 12 near the cooling cavity 13 and surrounds the through hole. A plurality of air blowing nozzles 63 are arranged on the connecting air pipe 61 at equal intervals and communicate with the connecting air pipe 61. One end of the main air pipe 62 communicates with the connecting air pipe 61, and the other end penetrates out of the optical fiber channel 1 and is connected with the gas conveying device 7. The side wall of the connecting air pipe 61 is provided with an exhaust hole near the front cavity 11. The exhaust hole is connected with the dust suction device 8 through a pipeline.

[0034] In the above embodiment, the external gas conveying device 7 (which can be a product of prior art such as a gas pump) conveys clean gas to the main air pipe 62. The gas enters the connecting air pipe 61 and is blown to the conveyed optical fiber from all directions through the plurality of air blowing nozzles 63 in the circumferential direction, so as to blow away the graphite ash on the surface of the optical fiber. The negative pressure suction of the dust suction device 8 makes the airflow carrying the graphite ash be sucked away by the dust suction device 8. The blowing in multiple directions ensures that the optical fiber can be conveyed relatively stably under the airflow and the stress is balanced.

[0035] In the embodiment, a plurality of cleaning cavities 12 can be arranged in series and are each provided with a cleaning assembly. Through multi-stage processing, the optical fiber can be ensured to be relatively clean.

[0036] In the embodiment, the cooling assembly at least comprises the following structural forms:

[0037] 1) As shown in Figure 1 the cooling assembly comprises a ring-shaped cooling chamber 131 arranged on the inner wall of the cooling cavity 13. The side wall of the cooling cavity 13 is provided with a refrigerant medium inlet pipeline 132 and a refrigerant medium outlet pipeline 133 which respectively communicate with the inside of the cooling chamber 131.

[0038] In the above scheme 1), the cooling medium (refrigerant medium) is circulated and conveyed into the cooling chamber 131 in the cooling cavity 13, so as to reduce the temperature in the cooling cavity 13 and cool the optical fiber passing through the cooling cavity 13.

[0039] More specifically, the cooling assembly further comprises a refrigerant tank 1311 and a pump body 1312. The outlet of the refrigerant tank 1311 is connected with the inlet of the pump body 1312 through a pipeline, and the outlet of the pump body 1312 is connected with the refrigerant medium inlet pipeline 132. The pump body 1312 pumps the refrigerant in the refrigerant tank 1311 into the cooling chamber 131, so as to reduce the temperature in the cavity of the cooling cavity 13. The subsequent refrigerant medium outlet pipeline 133 can be connected with a refrigeration device.

[0040] 2) As shown in Figure 2As shown, the cooling assembly comprises a cold air inlet 134 arranged at one end of the side wall of the cooling cavity 13 and a cold air outlet 135 arranged at the other end of the side wall of the cooling cavity 13, and the cold air inlet 134 and the cold air outlet 135 are distributed on both sides of the cooling cavity 13.

[0041] In the scheme 2), the cooled gas is blown into the cooling cavity 13, so that the gas is uniformly dispersed in the cooling cavity 13, thereby cooling the optical fiber passing through the cooling cavity 13.

[0042] More specifically, on the inner wall of one side of the cooling cavity 13, a gas flow pipeline a is arranged along the length direction, and a plurality of gas outlets are arranged on the gas flow pipeline a along the length direction, and the cold air is diffused in the cooling cavity 13 through the plurality of gas outlets.

[0043] In the embodiment, the cold air outlet 135 can also be connected to the gas conveying device 7, as a gas source of the gas conveying device 7, to realize recycling of the cold air.

[0044] In the embodiment, the outer surface of the cooling cavity 13 is provided with a heat preservation layer. The cold energy loss is reduced.

[0045] In the embodiment, the cleaning cavity 12 is provided with an openable and closable maintenance door. The inside of the cleaning cavity 12 is convenient to maintain and maintain.

[0046] In the description of the utility model, it is understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, structure and operation, therefore cannot be understood as a limitation on the utility model.

[0047] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one feature. In the description of the utility model, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0048] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element interiors or the interaction of two elements, unless another definite limitation.For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0049] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element interiors or the interaction of two elements, unless another definite limitation.For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0050] In the description of the specification, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0051] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

Claims

1. An optical fiber cleaning device, characterized in that: The optical fiber channel (1) is cylindrical and is connected to an optical fiber drawing device (2) at one end. The optical fiber channel (1) is provided with a front cavity (11), a cleaning cavity (12), a cooling cavity (13), a functional cavity (14) and a rear cavity (15) from one end to the other. The cleaning cavity (12) is provided with a cleaning component, the cooling cavity (13) is provided with a cooling component, and the functional cavity (14) is provided with a diameter measuring device (3). The front cavity (11), the cleaning cavity (12), the cooling cavity (13), the functional cavity (14) and the rear cavity (15) are provided with through holes for optical fibers to pass through at the center of their ends.

2. The optical fiber cleaning device according to claim 1, characterized in that: The front cavity (11) and the rear cavity (15) are respectively provided with optical fiber transmission and guidance components (5).

3. The optical fiber cleaning device according to claim 2, characterized in that: The optical fiber transmission and guiding assembly (5) includes at least two sets of guide wheels (51). Each set of guide wheels (51) has two wheels, which are respectively mounted on the inner wall of the front cavity (11) or the rear cavity (15) via wheel frames. The two guide wheels (51) in each set are close to each other, and a guiding channel for optical fiber to pass through is formed between them. The at least two sets of guide wheels (51) are distributed at intervals along the direction of light transmission.

4. The optical fiber cleaning device according to claim 3, characterized in that: The optical fiber transmission guide assembly (5) includes two sets of guide wheels (51), which are arranged in a cross shape on the circumference.

5. The optical fiber cleaning device according to claim 1, characterized in that: The cleaning assembly includes an annular connecting air pipe (61) and a main air pipe (62). The connecting air pipe (61) is located on the inner wall of the cleaning chamber (12) near the cooling chamber (13) and surrounds the through hole. The connecting air pipe (61) is provided with a plurality of air nozzles (63) that communicate with it at equal intervals. One end of the main air pipe (62) is connected to the connecting air pipe (61), and the other end extends out of the optical fiber channel (1) and is connected to the gas delivery device (7). The side wall of the connecting air pipe (61) near the front section chamber (11) is provided with an exhaust hole, and the exhaust hole is connected to a dust collection device (8) through a pipeline.

6. The optical fiber cleaning device according to claim 1, characterized in that: The cooling assembly includes an annular cold storage chamber (131) disposed on the inner wall of the cooling chamber (13), and the cooling chamber (13) has a cold medium inlet pipe (132) and a cold medium outlet pipe (133) respectively communicating with the inside of the cold storage chamber (131) at both ends of the side wall of the cooling chamber (13).

7. The optical fiber cleaning device according to claim 6, characterized in that: The cooling assembly also includes a refrigerant tank (1311) and a pump body (1312). The outlet of the refrigerant tank (1311) is connected to the inlet of the pump body (1312) via a pipeline, and the outlet of the pump body (1312) is connected to the refrigerant inlet pipeline (132).

8. The optical fiber cleaning device according to claim 1, characterized in that: The cooling assembly includes a cold air inlet (134) disposed at one end of the side wall of the cooling chamber (13) and a cold air outlet (135) disposed at the other end of the side wall of the cooling chamber (13), the cold air inlet (134) and the cold air outlet (135) being distributed on both sides of the cooling chamber (13).

9. The optical fiber cleaning device according to claim 1, characterized in that: The outer surface of the cooling cavity (13) is provided with a heat insulation layer.

10. The optical fiber cleaning device according to claim 1, characterized in that: The cleaning chamber (12) is equipped with an inspection door that can be opened or closed.

Images