KR100378375B1 - System for monitoring alignment and leveling of objects with relation to fiber drawing - Google Patents

Abstract

The present invention relates to a horizontal and vertical monitoring system for the object related to the optical fiber drawing, the disclosed monitoring system comprising: an optical fiber drawing process comprising a drawing facility of the optical fiber drawing tower, the object related to the optical fiber drawing process; A recognition table having a division region divided in the circumferential direction with a center around the center, and having different recognition states according to the division region, and attached to the object; And a sensing sensor mounted to face the center of the identification table so as to detect the vertical and horizontal angles of the target and providing a detected signal to the control unit. You can determine the vertical and horizontal degrees.

Description

SYSTEM FOR MONITORING ALIGNMENT AND LEVELING OF OBJECTS WITH RELATION TO FIBER DRAWING}

FIELD OF THE INVENTION The present invention relates to fiber optic drawing towers and, more particularly, to a system for monitoring the horizontal and verticality of drawing equipment mounted on an optical fiber drawing tower.

Typically, the optical fiber fabrication process consists of an optical fiber base material fabrication process and an optical fiber lead-out process for withdrawing one strand of optical fiber from the manufactured optical fiber base material. Furthermore, in order to improve a large diameter optical fiber base material, a method of manufacturing a large diameter second optical fiber base material by using an over-jacketing tube or a rod-in tube method on a primary optical fiber base material has become common. In the optical fiber manufacturing process, the optical fiber drawing process is a structure in which the drawing equipment is mounted in a process order in one stand-out drawing tower (about 10 meters or more). Such an optical fiber drawing tower is shown in FIG. The optical fiber base 1 fixed by the chuck 8 has a sufficient temperature (about 2000) in the furnace 10 which is moved in the vertical direction (arrow ② direction) by the conveying means 6. Melt | dissolved into the optical fiber 2). The drawn optical fiber 2 is controlled in diameter by the diameter controller 12 and cooled to a suitable temperature before passing through a cooling unit 14 to coat the optical fiber 2. The cooled optical fiber 3 is coated while passing through a coater 16, and the coated UV curable polymer is cured while passing through a plurality of ultraviolet curing devices 18. The optical fiber coating material is coated on the outer circumferential surface by viscosity and surface tension.

Subsequently, the optical fiber 4 passing through the ultraviolet curing device 18 passes through a capstan 20 and is then wound around the winding 24 through a plurality of rollers 21 and 22. . The capstan 20 provides a predetermined tensile force from the optical fiber base material 1 so that the optical fiber having a constant diameter size can be drawn out. One strand of optical fiber is drawn out from the manufactured base material in the direction of arrow ①. Here, reference numeral 23 denotes a take up reel or a spool in which the optical fiber is wound.

The melting furnace 10, the diameter controller 12, the cooling device 14, the coating device 16, the curing device 18, and the capstan 20 are stand-type draw towers. ) Is sequentially installed in the vertical direction around the optical fiber and a series of drawing processes are performed.

However, the optical fiber drawing process is carried out by melting the optical fiber base material (high-purity glass rod) and extracting it at a high speed from a certain thickness. There is a problem of disconnection due to friction and scratches. If the drawing equipment constituting the drawing tower is slightly misaligned, vibration of the optical fiber or scratching of the optical fiber occurs. The height of the withdrawal tower for the high-speed withdrawal process of 1000 m / mim or more in the optical fiber withdrawal process is 20 m or more, and the twisting of the withdrawal equipment installed inside the withdrawal tower causes the optical fiber to be broken.

Therefore, in the case of bundle occurrence of the disconnection phenomenon of the optical fiber, the vertical and horizontal degrees of the drawing equipment constituting the drawing tower must be checked. Thus, conventionally, the horizontal and vertical degrees of the optical fiber drawing tower were measured using the weight 25 suspended on a fishing line. However, the measurement of the verticality and the horizontality of the optical fiber drawing tower measured in this way is not accurately measured, which causes a decrease in reliability, and the horizontal and verticality of the overall drawing tower and the drawing equipment provided in the drawing tower. The measurement of the figure is difficult. Moreover, this type of measuring method requires about 5 hours or more of working time, and the structure is recognized by the operator after the optical fiber disconnection or the quality problem occurs. This conventional method is a cause of optical fiber loss and a cause of a decrease in productivity.

Accordingly, an object of the present invention is to provide a monitoring system capable of producing high quality optical fiber by preventing the optical fiber disconnection in advance by accurately monitoring the vertical and horizontal degrees of the optical fiber drawing tower or the drawing equipment.

In order to achieve the above object, the present invention provides an optical fiber drawing process comprising a drawing facility of the optical fiber drawing tower,

Objects related to optical fiber drawing processes;

A recognition table having a division region divided in the circumferential direction with a center around the center, and having different recognition states according to the division region, and attached to the object; And

It is mounted so as to face the center of the identification table, the sensing sensor for sensing the vertical and horizontal degree of the target to provide a sensed signal to the controller.

1 is a view showing a device for measuring the vertical and horizontal degree of the optical fiber extraction tower according to a conventional embodiment.

2 is a schematic view showing a monitoring system according to the present invention.

3 is a front view showing a color palette according to the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

Figure 2 is a block diagram showing a horizontal and vertical monitoring system of the optical fiber extraction facility according to an embodiment of the present invention. 1, 2, the monitoring system according to the present invention can be mounted to the object 30, that is, the optical fiber extraction tower, can be mounted to the optical fiber extraction facilities mounted on the optical fiber extraction tower, the optical fiber extraction tower It should be noted that it can be mounted on both and fiber optic extraction facilities. Moreover, the monitoring system according to the present invention can be mounted in any one of the optical fiber drawing facilities selected. At this time, among the optical fiber drawing facilities, the melting furnace 10 is mobile, and the cooling device 14, the diameter measuring device ( 12) Since the coating apparatus 16 and the ultraviolet curing apparatus 18 are fixed, the monitoring system is preferably mounted in a fixed drawing facility, but may be mounted in a melting furnace.

As shown in FIG. 2, the monitoring system includes an object 30 provided in any one selected from an optical fiber extraction tower or an optical fiber extraction facility, a color table 31 mounted on the object 30, and the color table. It is composed of a sensing sensor 32 disposed so as to sense the center of the center facing the spaced apart from the 31 to provide a detection signal to the control unit 33. The color table 31 mentioned above refers to a tag, and all of the tag that can be sensed by the sensor 32 is included. In the present invention, an example of the identification table is implemented by the color table 31. However, it should be noted that instead of the color table 31 in which areas can be distinguished by the color, the area can be distinguished by letters, numbers, and symbols so that the sensor can be replaced by a recognition table capable of recognizing the separated area. .

The detection sensor 32 detects the state of the withdrawal towers or the withdrawal facilities provided in the withdrawal tower, that is, the vertical and horizontal degrees of the withdrawal tower or withdrawal facilities, and outputs the detected state to the controller 33, and outputs the data. Is displayed on the monitor 34 so that the user can check the state detected through the monitor.

Specifically, the configuration of the object 30 and the color table 31 will be described. As described above, the target object 30 may be provided in the optical fiber drawing tower, and may be provided in any one of the optical fiber drawing equipment. Preferably the color palette 31 is installed in an attached manner.

As shown in FIG. 3, the color table 31 has regions that are circumferentially divided about the center and consist of different colors that are divided according to the divided regions. The operator must set and store the state of the color of the color table 31 in advance in the control unit. That is, the color table 31 is a color that is different from the center as the center goes around the center, and distinguishes each direction or angle as much as possible.

As a result, when the verticality and horizontality of the drawing facility differ from the initial state, the direction and the degree of distort according to the detection signal of the detection sensor 32 can be checked, thereby easily re-adjusting.

Preferably, the color table 31 according to the present invention makes the size of each color very small, and as the degree of the detection sensor 32 is increased, more precise sensing can be achieved.

In the installation procedure of the monitoring system according to the present invention, first, the vertical and horizontal degrees of the optical fiber extraction tower or the extraction facilities are adjusted using the weight shown in FIG. After the horizontal degree and the vertical degree are precisely adjusted, the color table 31 and the detection sensor 32 may be mounted. In this case, the detection sensor 32 is mounted to face the center of the color table 31.

According to the above configuration, the operator can check the degree of distortion and the degree of distortion and the horizontality and verticality of the detailed withdrawal facilities by vibrating factors or external factors of the withdrawal tower itself. Quickly adjust the furnace to minimize production losses. In addition, it is possible to easily identify the main cause by continuously checking the frequently twisted portion of the withdrawal equipment.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but it will be apparent to those skilled in the art that various modifications are possible without departing from the scope of the present invention.

As described above, the present invention can easily grasp the degree of distortion by monitoring the horizontal and vertical degree of the optical fiber extraction tower or the extraction facilities mounted on the optical fiber extraction tower. Therefore, the present invention can prevent the optical fiber disconnection phenomenon in advance, which is a factor of improving productivity, and can provide a high quality optical fiber.

Claims (5)

In the optical fiber drawing process including the drawing equipment of the optical fiber drawing tower, Objects related to optical fiber drawing processes; A recognition table having a division region divided in the circumferential direction with a center around the center, and having different recognition states according to the division region, and attached to the object; And It is mounted so as to face the center of the identification table, the sensing sensor for sensing the vertical and horizontal degree of the target object to provide a sensed signal to the control unit, the vertical of the object according to the identification tag preset in the control unit Surveillance system, characterized in that the degree and level can be grasped. The monitoring system according to claim 1, wherein the object is a withdrawal tower. The monitoring system according to claim 1, wherein the object is a drawing facility mounted to the drawing tower. 2. The surveillance system of claim 1, wherein the identification tag comprises a color table. The monitoring system according to claim 4, wherein the color table is configured to be attached to any one selected object from among the objects.