Control device structure for stabilizing curing degree of optical fiber coating

Abstract

The utility model belongs to the technical field of optical fiber manufacturing equipment, and particularly relates to a control device structure for stabilizing the curing degree of an optical fiber coating. The device mainly comprises an optical fiber drawing furnace, an optical fiber coating platform and an optical radiation curing furnace which are sequentially arranged from top to bottom, an upper opening air inlet device and a lower opening air draft device are arranged at the top and the bottom of the optical radiation curing furnace respectively, and the upper opening air inlet device and the lower opening air draft device are communicated through a central pipe arranged in the middle of the optical radiation curing furnace; an optical radiation device is installed on the inner wall of the optical radiation curing oven, an illumination density sensor is arranged on the inner wall of the central pipe, and the optical radiation device and the illumination density sensor are both electrically connected with an illumination density control cabinet arranged on the side portion of the optical radiation curing oven. The device is compact in overall structure and convenient to install and maintain, the illumination density in the optical fiber curing oven can be conveniently measured and adjusted, the stability of the curing degree of an optical fiber coating is effectively improved, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to optical fiber manufacturing equipment technical field, concretely relates to a control device structure for stabilizing optical fiber coating curing degree. BACKGROUND

[0002] The polymer coating of optical fiber is generally epoxy acrylate or polyacrylate, wherein the inner coating is soft, and the outer coating is hard. The inner coating is used for protecting the surface of bare optical fiber from mechanical damage and plays a role of buffering external stress in the use of optical fiber; the hard outer coating is beneficial to the wear resistance of optical fiber.

[0003] The curing degree of optical fiber coating is an important factor affecting the physical and chemical properties of the coating, and the curing degree of optical fiber coating directly affects the comprehensive properties of the coating such as adhesion, peel strength, toughness, moisture resistance and glass transition temperature. Low curing of the coating will result in lower modulus of the material than the expected modulus, thereby causing insufficient adhesion of the inner coating to the optical fiber glass, and making the pull-out force of the coating not meet the requirements.

[0004] In the process of light radiation curing, improving the stability of light intensity can not only accelerate the curing speed of light curing resin, but also help to improve the uniformity and consistency of the coating, so as to ensure that the coating can be quickly and uniformly cured, and avoid the appearance of uncured or incompletely cured areas. However, the optical fiber coating curing device in the prior art generally lacks a corresponding light intensity measuring system and adjusting system, so that the curing efficiency of the optical fiber coating and the coating performance are low. CONTENT OF THE UTILITY MODEL

[0005] The technical problem to be solved by the utility model is to provide a control device structure for stabilizing the curing degree of optical fiber coating, which is compact in structure, convenient to install and maintain, can conveniently measure and adjust the light intensity in the optical fiber curing furnace, and effectively improve the stability of the curing degree of optical fiber coating and the product quality.

[0006] The technical scheme adopted by the utility model to solve the above technical problem is:

[0007] A control device structure for stabilizing the curing degree of optical fiber coating mainly comprises an optical fiber drawing furnace 8, an optical fiber coating platform 7, a light radiation curing furnace 1, a light intensity measuring device 4 and a light intensity control cabinet 5.

[0008] The optical fiber drawing furnace 8, the optical fiber coating platform 7 and the curing furnace 1 are sequentially arranged from top to bottom, the top and bottom of the curing furnace 1 are respectively provided with the upper air inlet device 2 and the lower air exhaust device 3, the upper air inlet device 2 and the lower air exhaust device 3 are communicated through the central pipe 10 arranged in the middle of the light radiation curing furnace 1, the light radiation device is mounted on the inner wall of the light radiation curing furnace 1, the light intensity density sensor is arranged on the inner wall of the central pipe 10, and the light radiation device and the light intensity density sensor are electrically connected with the light intensity density control cabinet 5 arranged on the side of the light radiation curing furnace 1.

[0009] Further, the optical fiber 9 at the output end of the optical fiber drawing furnace 8 passes through the optical fiber coating platform 7 and then enters the central pipe 10 of the light radiation curing furnace 1.

[0010] Further, the upper air inlet device 2 is connected with a nitrogen gas source device for introducing nitrogen into the central pipe 10, and the upper air inlet device 2 is provided with a sealing ring 6 at the top.

[0011] Further, the lower air exhaust device 3 is connected with an air exhaust fan for exhausting waste gas in the central pipe 10.

[0012] Further, the light radiation device includes light radiation device one 11 and light radiation device two 12 which are respectively mounted on the upper portion and the lower portion of the inner wall of the light radiation curing furnace 1.

[0013] Further, the light radiation device one 11 and the light radiation device two 12 are electrically connected with the light intensity density control cabinet 5 through remote wireless communication.

[0014] Further, the light intensity density sensor is electrically connected with the light intensity density measuring device 4 mounted outside the light radiation curing furnace 1 through a signal cable.

[0015] Further, the light intensity density measuring device 4 is electrically connected with the light intensity density control cabinet 5 through a control cable, and the light intensity density control cabinet 5 is provided with a PLC controller.

[0016] Compared with the prior art, the utility model has the following main advantages:

[0017] 1, the utility model discloses a light intensity density measuring device is installed in the curing furnace, and the light intensity density control cabinet is arranged outside the curing furnace, can conveniently, efficiently measure and adjust the light intensity density in the optical fiber curing furnace, ensure the stability of the light intensity density in the curing furnace, and then effectively improve the uniformity and consistency of optical fiber coating, ensure that the coating can be quickly and uniformly cured, improve product quality.

[0018] 2, the utility model discloses a cooperation of upper air inlet device and lower air exhaust device can pass into nitrogen into the center tube of solidification furnace, and further effectively reduce the oxygen content in the optical fiber solidification furnace, reduce the oxygen inhibition effect in the optical fiber coating solidification process, improve the solidification degree of optical fiber coating.

[0019] 3, the utility model discloses a reasonable arrangement of optical fiber drawing furnace, optical fiber coating platform, optical radiation solidification furnace and illumination density measuring device and illumination density control cabinet, and the overall structure is compact, convenient to install and maintain, and convenient operation can save equipment installation space. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the whole schematic view of the control device structure for stabilizing the solidification degree of optical fiber coating.

[0021] In the drawing: 1-optical radiation solidification furnace;2-upper air inlet device;3-lower air exhaust device;4-illumination density measuring device;5-illumination density control cabinet;6-sealing ring;7-optical fiber coating platform;8-optical fiber drawing furnace;9-optical fiber;10-center tube;11-optical radiation device one;12-optical radiation device two. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantage of the embodiments of the application more clear, the technical scheme in the embodiments of the application will be described clearly and completely in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, not all the embodiments. The components of the embodiments of the application described and shown in the drawings can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the application.

[0024] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] The features and performances of the present application are further described in detail below in combination with embodiments.

[0027] As shown in Figure 1 The present application provides a control device structure for stabilizing the curing degree of optical fiber coating, mainly comprising: an optical fiber drawing furnace 8, an optical fiber coating platform 7, an optical radiation curing furnace 1, an illumination density measuring device 4 and an illumination density control cabinet 5.

[0028] Among them, the optical fiber drawing furnace 8, the optical fiber coating platform 7 and the optical radiation curing furnace 1 are arranged in turn from top to bottom, and the optical fiber 9 after drawing by the optical fiber drawing furnace 8 is coated by the optical fiber coating platform 7 and then enters the central pipe 10 of the optical radiation curing furnace 1 for coating curing.

[0029] Further, the top and bottom of the optical radiation curing furnace 1 are respectively provided with an upper air inlet device 2 and a lower air exhaust device 3, and the upper air inlet device 2 and the lower air exhaust device 3 are communicated through the central pipe 10 arranged in the middle of the optical radiation curing furnace 1, the inner wall of the optical radiation curing furnace 1 is provided with an optical radiation device, and the inner wall of the central pipe 10 is provided with an illumination density sensor, and the optical radiation device and the illumination density sensor are electrically connected with the illumination density control cabinet 5 arranged on the side of the optical radiation curing furnace 1.

[0030] Further, the upper air inlet device 2 is connected with a nitrogen gas source device for introducing nitrogen into the central pipe 10, and the upper air inlet device 2 is provided with a sealing ring 6 at the top.

[0031] Further, the lower air exhaust device 3 is connected with an air exhaust fan for exhausting the exhaust gas in the central pipe 10.

[0032] Further, the optical radiation device comprises optical radiation device one 11 and optical radiation device two 12 respectively installed on the upper part and the lower part of the inner wall of the optical radiation curing furnace 1.

[0033] Further, the optical radiation device one 11 and the optical radiation device two 12 are electrically connected with the illumination density control cabinet 5 through remote wireless communication.

[0034] Further, the light intensity sensor is electrically connected with the light intensity measuring device 4 installed outside the light radiation curing furnace 1 through a signal cable.

[0035] Further, the light intensity measuring device 4 is electrically connected with the light intensity control cabinet 5 through a control cable, and the light intensity control cabinet 5 is provided with a PLC controller.

[0036] The specific working principle is:

[0037] The optical fiber first passes through the optical fiber drawing furnace for drawing, then enters the optical fiber coating platform for coating, and then penetrates into the center pipe of the light radiation curing furnace for coating curing.

[0038] Nitrogen is introduced into the center pipe of the curing furnace through the upper air inlet device, thereby effectively reducing the oxygen content in the optical fiber curing furnace, reducing the oxygen inhibition effect in the optical fiber coating curing process, and timely discharging the exhaust gas in the furnace through the lower air exhaust device.

[0039] The light intensity sensor measures the light intensity in the furnace in real time, and the PLC controller in the control cabinet generates corresponding control instructions according to the measurement signal of the light intensity measuring device and sends the control instructions to the upper and lower light radiation devices in the curing furnace respectively, so as to adjust the light intensity in the curing furnace, thereby ensuring the stability of the light intensity in the curing furnace and effectively improving the uniformity and consistency of the optical fiber coating.

[0040] Further, the parts not described in detail in the application are the same as or realized by the prior art.

[0041] In summary:

[0042] 1. The light intensity measuring device is installed in the curing furnace, and the light intensity control cabinet is arranged outside the curing furnace, so that the light intensity in the optical fiber curing furnace can be conveniently and efficiently measured and adjusted, the stability of the light intensity in the curing furnace is ensured, the uniformity and consistency of the optical fiber coating are effectively improved, the coating can be quickly and uniformly cured, and the product quality is improved.

[0043] 2. The upper air inlet device cooperates with the lower air exhaust device to introduce nitrogen into the center pipe of the curing furnace, thereby effectively reducing the oxygen content in the optical fiber curing furnace, reducing the oxygen inhibition effect in the optical fiber coating curing process, and improving the curing degree of the optical fiber coating.

[0044] 3. The optical fiber drawing furnace, the optical fiber coating platform, the light radiation curing furnace, the light intensity measuring device and the light intensity control cabinet are reasonably arranged, the overall structure is compact, convenient to install and maintain, and easy to operate, and the equipment installation space can be saved.

[0045] The above examples are only used for illustrating the design idea and characteristics of the present application, and the purpose is to enable the person skilled in the art to understand the content of the present application and to implement it, and the protection scope of the present application is not limited to the above examples. Therefore, any equivalent changes or modifications made according to the principles and design ideas disclosed by the present application are within the protection scope of the present application.

Claims

1. A control device structure for stabilizing the degree of cure of optical fiber coatings, characterized by: The application relates to a fiber drawing and curing device, which comprises, from top to bottom, a fiber drawing furnace (8), a fiber coating platform (7) and a light radiation curing furnace (1), wherein the top and bottom of the light radiation curing furnace (1) are respectively provided with an upper air inlet device (2) and a lower air exhaust device (3), the upper air inlet device (2) and the lower air exhaust device (3) are communicated through a central pipe (10) arranged in the middle of the light radiation curing furnace (1), a light radiation device is arranged on the inner wall of the light radiation curing furnace (1), a light intensity sensor is arranged on the inner wall of the central pipe (10), and the light radiation device and the light intensity sensor are electrically connected with a light intensity control cabinet (5) arranged on the side of the light radiation curing furnace (1).

2. A control device structure for stabilizing the curing degree of an optical fiber coating according to claim 1, characterized by: The fiber (9) at the output end of the fiber drawing furnace (8) passes through the fiber coating platform (7) and then enters the central pipe (10) of the light radiation curing furnace (1).

3. A control device structure for stabilizing the curing degree of an optical fiber coating according to claim 1, characterized by: The upper air inlet device (2) is connected with a nitrogen gas source device for introducing nitrogen into the central pipe (10), and a sealing ring (6) is arranged on the top of the upper air inlet device (2).

4. The control device structure for stabilizing the curing degree of an optical fiber coating according to claim 1, characterized by: The lower air exhaust device (3) is connected with an air exhaust fan for exhausting waste gas in the central pipe (10).

5. The control device structure for stabilizing the curing degree of an optical fiber coating according to claim 1, characterized by: The light radiation device comprises a light radiation device one (11) and a light radiation device two (12) arranged on the upper part and the lower part of the inner wall of the light radiation curing furnace (1) respectively.

6. A control device structure for stabilizing the curing degree of an optical fiber coating according to claim 5, characterized by: The light radiation device one (11) and the light radiation device two (12) are electrically connected with the light intensity control cabinet (5) through remote wireless communication.

7. The control device structure for stabilizing the curing degree of an optical fiber coating according to claim 1, characterized by: The light intensity sensor is electrically connected with a light intensity measuring device (4) arranged outside the light radiation curing furnace (1) through a signal cable.

8. A control device structure for stabilizing the curing degree of an optical fiber coating according to claim 7, characterized by: The light intensity measuring device (4) is electrically connected with the light intensity control cabinet (5) through a control cable, and a PLC controller is arranged in the light intensity control cabinet (5).

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