KR200269437Y1 - Spindle assembly of rotary reaction machine of preform producing for plastic optical fiber - Google Patents

Abstract

The present invention provides a centrifugal force by rotating a tube containing a glass base material containing a liquid base material as a polymer compound at high speed so that the liquid base material can be molded into a core type in the glass tube in the circumferential direction of the formed core. Regarding the spindle assembly 300 of the rotation reaction apparatus 500 for producing a base material to increase the efficiency of production and quality of the base material by having a uniform density;

The spindle assembly 300 is located in front of the tube 100 and the headstock 150 for transmitting power while holding the front center of the tube 100;

The tailstock 200 is configured to hold the rear center of the tube 100 to enable smooth rotation.

Description

Spindle assembly of rotary reaction machine for base material production {Spindle assembly of rotary reaction machine of preform producing for plastic optical fiber}

The present invention relates to a spindle assembly of a rotation reaction device for producing a base material, and more particularly, to provide a spindle assembly for rotating a tube by applying a rotation reaction device for a production of a base material, which enables the production of a base material used in optical fiber production by a polymerization method. It is about.

An optical fiber refers to a fiber-shaped waveguide for the purpose of transmitting light, and synthetic resin and glass are used as raw materials, but glass having good transparency is mostly used.

This optical fiber has a core in the center and has a shape like a double cylinder surrounded by cladding, and the outside is coated with a material such as synthetic resin to protect it from external impact. .

Since the diameter of the optical fiber is 100 to several hundred μm and the refractive index of the core portion is higher than the refractive index of the clad portion, light can be focused on the core portion and proceed without falling out.

These optical fibers are free from interference or interference by external electromagnetic waves, are difficult to wire, small, lightweight, and strong in bending, and can accommodate many communication lines in one optical fiber. It is widely used for detectors.

There are various methods of manufacturing such optical fibers such as crucible, external deposition, internal deposition, axial deposition method, and radiation method, but by melting the preform with rods of about 1cm in diameter having the same structure as the optical fiber and stretching them with high heat. Many methods by radiation to obtain optical fiber are adopted.

However, in order to produce a base material using polymer compounds (synthetic resins and plastics) that require a long time of solidification, it is impossible to produce a base material by the above method. I'm using it.

In order to solve this problem, the glass tube containing the polymer compound is heated to solidify, and at the same time, it is a means for suppressing bubbles generated when heating the liquid polymer compound to maintain a high pressure in the glass tube and rotate the polymer compound at high speed. It is to provide a rotation reaction apparatus for producing a base material to have a uniform density in the circumferential direction.

In the present invention, a tube inserted with a glass base material containing a liquid base material as a polymer compound is rotated at a high speed to give a centrifugal force so that the base material of the liquid can be molded into a core type in the glass tube in the circumferential direction of the formed core. The aim is to increase the efficiency of production and the quality of the base material by allowing it to have a uniform density.

1 is a front view showing a rotation reaction apparatus for producing a base material to which the technique of the present invention is applied.

2 is a cross-sectional view of the headstock constituting the spindle of the rotation reaction apparatus for producing a base material to which the technology of the present invention is applied.

3 is a cross-sectional view taken from the tailstock constituting the spindle of the rotation reaction apparatus for producing a base material to which the technology of the present invention is applied.

* Description of the symbols used in the main parts of the drawings *

2; Tilting table

150; Headstock

155; Rotor

161; center

162; Power pin

200; Tailstock

202; Stock Housing

205; Live Center

206; sleeve

208; screw

210; handle

300; Spindle Assembly

500; Rotary reactor

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the preferred embodiment of the present invention for achieving the above object.

1 is a front view showing a rotation reaction apparatus for producing a base material applied to the technology of the present invention, Figure 2 is a cross-sectional view of the headstock constituting the spindle of the rotation reaction apparatus for producing a base material applied to the technology of the present invention, Figure 3 Will be described together with a cross-sectional view taken from the tailstock constituting the spindle of the rotation reaction apparatus for producing a base material applied technology of the present invention.

Rotation reaction apparatus 500 for a base material production to which the technology of the present invention is applied,

A tilting table 2 for converting a predetermined angle by the tilting means 10 is provided above the base 1, which is provided in a roughly box type, and the upper surface of the tilting table 2 solidifies a liquid base material. Jacket 50 for supplying hot air for is installed.

The inside of the jacket 50 is provided with a tube 100 having a glass tube for making a base material by using the hot air supplied from the jacket 50, the tube 100 is rotated before and after the tube 100 As the spindle assembly 300 to make the headstock 150 and the tailstock 200 is provided.

Spindle assembly 300 is to rotate the tube 100 so that the liquid base material injected into the glass tube 103 inserted into the tube 100 can be cured into a core type.

In the present invention, the spindle assembly 300 is located at the front of the tube 100 to hold the front center of the tube 100 while holding the headstock 150 and the rear center of the tube 100 to transfer power to the center. It consists of a tailstock 200 to enable the rotation.

The headstock 150 is provided with a housing 152 on the head base 151 fixed to the upper surface of the tilting table 2, the motor 153 is a driving force generating means in front of the housing 152 It is provided.

Inside the housing 152, the rotor 155 is maintained as a bearing 156 so that the rear end of the rotor 155 and the output shaft 157 of the motor 153 are connected with the coupler 158 to the motor 153. Rotor 155 received the power of the to allow to rotate.

The front of the rotor 155 is fixed to the rotating plate 160 has a center 161 that can be combined with the center hole 117 formed in the front cap 110 of the tube 100 in the center, The outer periphery of the center 161 is also provided with a power pin 162 for rotating the tube 100 in combination with the power transmission groove 118 formed in the front cap 110 of the tube 100. .

The tailstock 200 also secures the tail base 201 to the rear upper surface of the tilting table 2, and has a stock housing 202 on the upper surface of the tail base 201, so that the inside of the tube 100 The sleeve 206 having a live center 205 is coupled to the center hole 117 formed at the center of the rear cap 111 and the cover 116.

An inner diameter of the sleeve 206 is provided with a screw block 207 to engage with the screw 208 coupled to the rear of the stock housing 202, the screw shaft 209 of the screw 208 protruding to the rear of the screw 208 The end is provided with a handle 210 to allow the live center 205 to move forward and backward.

A rear end of the stock housing 202 is covered with a cover 211, and a normal cam clutch 212 is provided between the cover 211 and the handle 210 to select the front and rear of the live center 205. It is configured to limit the movement of the screw (208).

The present invention as described above;

Adjust the handle 210 of the tailstock 200 to retreat the live center 205 coupled with the center hole 117 formed in the cover 116 covering the rear cap 111 of the tube 100 Allow the 100 to move freely.

In this state, the jacket 50 is opened, the tube 100 is separated, the rear cap 111 of the tube 100 is separated, and the glass tube 103 into which the liquid base material is injected is inserted into the tube 100. .

In the above state, the tube 100 is inserted into the jacket 50 so that the center hole 117 and the power transmission groove 118 formed in the front cap 110 of the tube 100 have a center of the headstock 150. 161 and the power pin 162 is inserted, the center hole 117 formed in the cover 116 coupled to the rear cap 111 by adjusting the handle 210 of the tailstock 200 live center 205 ) Is inserted.

When the mounting of the tube 100 is completed as described above, it is preferable to inject the argon gas to maintain the high pressure state in order to suppress bubbles generated by the high temperature of the liquid base material in the tube 100.

After closing the jacket 50 in the above state, the tilting table 2 is inclined using the tilting means 10 (the inlet of the glass tube is directed upward), and the liquid base material injected into the glass tube 103 is inclined. To prevent leakage.

In this state, when the motor 153 of the headstock 150 is operated, the driving force of the motor 153 is transmitted to the rotor 155 and the rotating plate 160 through the coupler 158 to rotate the rotating plate 160.

Then, the center 161 provided at the center of the rotating plate 160 is inserted into the center hole 117 formed at the center of the front cap 110 of the tube 100, and the power pins provided at the outer circumference of the rotating plate 160. 162 is coupled to the power transmission groove 118 formed on the outer circumference of the front cap 110 of the tube 100 to rotate the tube 100.

Of course, when the tube 100 is rotated by the motor 153, the live center 205 of the tailstock 200 is a center formed at the center of the cover 116 coupled to the outside of the rear cap 111 of the tube 100. Since it is in a state coupled with the hole 117 to allow the tube 100 to rotate in a stable state.

As the tube 100 rotates as described above, indirect heat is transferred to the glass tube 103 in the tube 100 by heating the outer surface of the rotating tube 100 by generating high heat in the jacket 50 and circulating the glass tube. (103) The liquid base material material injected therein is heated.

When the liquid base material injected into the glass tube 103 is maintained at a constant viscosity by supplying hot air in the tilted state as described above, even when the tilting table 2 is switched to a horizontal state, the liquid base material does not flow out. .

When the tilting table 2 is kept in a horizontal state and continuously supplied with hot air, or when the hot air and ultraviolet rays are projected together, the liquid base material in the glass tube 103 is moved outward of the glass tube 103 by centrifugal force. It is scattered and solidified in the form of a hollow core.

As described above, when the liquid base material in the glass tube 103 is completely hardened in the form of the core by continuous rotation, supply of hot air, and projection of ultraviolet rays in the state where the tilting table 2 is maintained in a horizontal state, rotation is stopped and supply of hot air is performed. And stop the projection of ultraviolet light.

When the rotation reaction apparatus 500 is stopped, the jacket 50 is opened to adjust the handle 210 of the tailstock 200 to retreat the live center 205 and then to leave the tube 100.

When the separation of the tube 100 is completed, the argon gas in the tube 100 is discharged to release the high pressure state, and the rear cap 111 of the tube 100 is separated to draw the glass tube 103 to form a base material for one optical fiber. Will be completed.

The glass tube 103 is drawn out by inserting a new glass tube 103 into which the liquid base material is injected, and repeating the same operation as the initial stage.

The present invention as described above is to give a centrifugal force by rotating the tube inserting the glass tube containing the liquid base material of the polymer compound at high speed so that the liquid base material can be molded into the core type in the glass tube of the core formed By having a uniform density in the circumferential direction, various effects can be obtained, such as the efficiency of production and the quality of the base metal can be improved.

Claims (2)

A tilting table 2 which is inclined at a predetermined angle by the tilting means 10 above the base 1 provided as a roughly box type so as to prevent the liquid base material material from flowing out at an initial stage; A jacket (50) installed on the upper surface of the tilting table (2) to transmit hot air and ultraviolet rays for solidifying a liquid base material; A tube (100) provided inside the jacket (50) and having a glass tube injecting a liquid base material to make a base material by receiving hot air and ultraviolet rays supplied from the jacket (50); The front and rear of the tube 100 tilts the headstock 150 and the tailstock 200 with the spindle assembly 300 which imparts rotational force for forming the liquid base material in the glass tube into the core type. In configuring the spindle assembly 300 of the rotation reaction apparatus 500 for producing a base material is provided on the front, rear of the; The spindle assembly 300 is located in front of the tube 100 and the headstock 150 for transmitting power while holding the front center of the tube 100; It consists of a tailstock 200 to hold the rear center of the tube 100 to enable a smooth rotation; The headstock 150 is; A head base 151 fixed to the upper side surface of the tilting table 2; A housing 152 installed in the base 151; A motor 153 provided in front of the housing 152; A rotor 155 provided inside the housing 152; A coupler 158 connecting the rotor 155 and the output shaft 157 of the motor 153; A rotating plate 160 fixed to the front of the rotor 155; A center 161 fixed to the center of the rotating plate 160 and coupled to a center hole 117 formed in the front cap 110 of the tube 100; It is fixed to the outer periphery of the center 161 is coupled to the power transmission groove 118 is also formed in the front cap 110 of the tube 100 to include a power pin 162 for rotating the tube 100 Spindle assembly of a rotary reaction device for producing a base material. The method of claim 1; The tailstock 200 is; A tail base 201 fixed to the rear upper surface of the tilting table 2; A stock housing 202 provided on an upper surface of the tail base 201; A live center 205 provided inside the stock housing 202 and coupled to a center hole 117 formed at the center of the rear cap 111 cover 116 of the tube 100; A sleeve 206 for holding the live center 205; A screw block 207 provided at an inner diameter of the sleeve 206 and coupled to a screw 208 coupled to the rear of the stock housing 202; A handle 210 coupled to an end of the screw shaft 209 protruding rearward of the screw 208; A cover 211 closed at the rear of the stock housing 202; Spindle assembly of the rotation reaction apparatus for a base material production, characterized in that it comprises a cam clutch 212 provided between the cover 211 and the handle 210 to limit the movement of the screw (208).