阅读说明：本技术 光纤制造装置及其调机方法 (Fiber fabrication apparatus and its tune machine method ) 是由 铃木尚 于 2018-03-26 设计创作，主要内容包括：一种光纤制造装置,其具备对光纤母材进行加热熔融的加热炉、牵引机构、涂敷机构、以及移送机构。牵引机构从加热熔融的光纤母材引出玻璃光纤并调整玻璃光纤的外径,并且拉丝出外径调整后的玻璃光纤。涂敷机构在外径调整后的玻璃光纤的外周涂敷覆盖用树脂。移送机构使涂敷机构从玻璃光纤的通过路径以能够返回的方式退避。(A kind of fiber fabrication apparatus has heating furnace, traction mechanism, applying mechanism and the transfer mechanism that heating melting is carried out to optical fiber base material.Traction mechanism draws glass optical fiber from the optical fiber base material of heating melting and adjusts the outer diameter of glass optical fiber, and wire drawing goes out outer diameter glass optical fiber adjusted.Applying mechanism applies covering resin in the periphery of outer diameter glass optical fiber adjusted.Transfer mechanism keeps out of the way applying mechanism in a manner of it can return from the passage path of glass optical fiber.)

1. a kind of fiber fabrication apparatus, which is characterized in that have:

Heating furnace carries out heating melting to optical fiber base material；

Traction mechanism from the optical fiber base material extraction glass optical fiber by the heating furnace heating melting and adjusts the glass The outer diameter of optical fiber, and wire drawing goes out the outer diameter glass optical fiber adjusted；

Applying mechanism applies defined resin in the periphery of the outer diameter glass optical fiber adjusted；And

Transfer mechanism keeps out of the way the applying mechanism in a manner of it can return from the passage path of the glass optical fiber.

2. fiber fabrication apparatus according to claim 1, which is characterized in that

Has the analyzer being measured to the outer diameter of the glass optical fiber between the heating furnace and the applying mechanism.

3. fiber fabrication apparatus according to claim 2, which is characterized in that

The fiber fabrication apparatus has control unit, and the control unit is based on the glass optical fiber determined by the analyzer Outer diameter control the traction mechanism.

4. fiber fabrication apparatus according to claim 3, which is characterized in that

The analyzer also glass optical fiber adjusted to outer diameter is measured by position,

The control unit controls the coating machine by position based on the outer diameter determined the glass optical fiber adjusted The return position of structure.

5. fiber fabrication apparatus according to claim 3 or 4, which is characterized in that

The fiber fabrication apparatus has handle sturcture, and the handle sturcture holds the optical fiber base material, and adjusts the optical fiber Relative position of the base material relative to the heating furnace,

The control unit controls the handle sturcture so that the optical fiber base material is remote after the extraction for making the glass optical fiber stops Heater from the heating furnace.

6. a kind of tune machine method of fiber fabrication apparatus is the side for carrying out tune machine to the fiber fabrication apparatus of following manufacture optical fiber Method:

Heating melting is carried out to optical fiber base material using heating furnace；

The glass optical fiber of desired outer diameter is provided from the optical fiber base material wire drawing using traction mechanism；And

Using the defined resin of periphery coating for the glass optical fiber that applying mechanism goes out in wire drawing, pass through the defined resin Be solidificated in periphery formed coating,

The tune machine method of the fiber fabrication apparatus is characterised by comprising:

Keep out of the way process, keep out of the way in process at this, draws the applying mechanism from the optical fiber base material from by the traction mechanism The passage path of the glass optical fiber keep out of the way；

Line footpath adjusts process, in line footpath adjustment process, draws glass optical fiber from the optical fiber base material by the traction mechanism And adjust the outer diameter of the glass optical fiber；And

Setting process makes the applying mechanism back to the logical of the outer diameter glass optical fiber adjusted in the setting process It crosses in path.

7. the tune machine method of fiber fabrication apparatus according to claim 6 characterized by comprising

Line footpath mensuration operation, the outer diameter in the line footpath mensuration operation, to the glass optical fiber adjusted by the traction mechanism It is measured；

Stop process, in the stopping process, is less than inserting for the applying mechanism in the outer diameter of the glass optical fiber determined In the case where the diameter of through-hole, stop the extraction of the glass optical fiber carried out by the traction mechanism；And

Cut off operation cuts off the outer diameter glass optical fiber adjusted stopped of drawing in the cut off operation,

The setting process makes the applying mechanism back to outer diameter tune after the outer diameter glass optical fiber adjusted is cut off In the passage path of the glass optical fiber after whole.

8. the tune machine method of fiber fabrication apparatus according to claim 6 or 7, which is characterized in that

The tune machine method of the fiber fabrication apparatus further comprises position finding process, right in the position finding process The outer diameter carried out by the traction mechanism the glass optical fiber adjusted is measured by position,

The setting process controls the coating by position based on the outer diameter determined the glass optical fiber adjusted The return position of mechanism.

9. according to claim 7 or the tune machine method for the fiber fabrication apparatus according to any one of claims 8 for quoting claim 7, It is characterized in that,

The optical fiber base material is adjusted to relative to the relative position of the heating furnace, in the extraction for stopping the glass optical fiber Afterwards, make the optical fiber base material far from the heater of the heating furnace.

Technical field

The present invention relates to fiber fabrication apparatus and its adjust machine method.

Background technique

In the past, in the manufacturing process of optical fiber, heating melting is carried out to optical fiber base material using fiber drawing furnace, and wire drawing goes out glass Optical fiber, then, using also referred to as mold applying mechanism glass optical fiber periphery application of resin.In general, mold has for covering The insertion hole of the glass optical fiber insert of lid object, in the periphery application of resin for passing sequentially through the glass optical fiber in the insertion hole.It applies The curing mechanism of rear class of the deposited resin by being configured at mold and, solidifies, and glass optical fiber becomes and is formed in its periphery as a result, The optical fiber (also referred to as optical fiber wire rod) of coating.

Before the manufacturing process of such optical fiber, need to make the outer diameter of glass optical fiber smaller than the insertion hole of mold, therefore In the tune machine of fiber manufacturing, glass optical fiber is successively drawn from optical fiber base material, glass optical fiber is made to attenuate (referring for example to patent document 1).It should be noted that hereinafter, by like this in order to by glass optical fiber be adjusted so as to it is thinner than the insertion hole of mold and from optical fiber base material The case where drawing glass optical fiber is known as " sky draw ", thus with the glass that is adjusted to be inserted through by outer diameter after the insertion hole of mold Glass optical fiber (glass optical fiber of covering object) is distinguished from " wire drawing " that optical fiber base material is drawn.

Citation

Patent document

Patent document 1: Japanese Unexamined Patent Publication 10-330133 bulletin

Summary of the invention

Subject to be solved by the invention

Fig. 5 is the figure for illustrating an example of tune machine method of fiber manufacturing.For example, as shown in figure 5, in fiber fabrication apparatus In 100, the defined position fixed configurations in optical fiber passage path then 0 have mold 101.In addition, matching in the top of mold 101 It is equipped with a pair of of dandy 102a, 102b in order to make glass optical fiber 110 attenuate and carry out empty drawing, is matched in the lower section of mold 101 The annulus 104 for being equipped with the capstan winch 103 of the glass optical fiber for going out to cover object from optical fiber base material wire drawing and rotating freely.In general, Dandy 102a, 102b and the capstan winch 103 are comparably small-sized, and to clip optical fiber passage path R10, opposed mode is configured. In addition, in the position deviateed on the lower and from optical fiber passage path R10 to side than dandy 102a, 102b configured with attraction Device 105,105 pairs of the suction device by outer diameter be adjusted so as to it is relatively thin before glass optical fiber 110 attract.

In the tune machine of common fiber manufacturing, for example, when the tune machine of fiber fabrication apparatus 100 shown in Fig. 5, it is small-sized Capstan winch 102a, 102b are radially therefrom on one side clips glass optical fiber 110, cuts a piece of glass on one side from optical fiber base material (not shown) sky of top Optical fiber 110 and successively send out downwards, and glass optical fiber 110 is made to attenuate.Glass optical fiber 110 passes through above-mentioned empty drawing in its outer diameter And during being adjusted to before the size smaller than the diameter of the insertion hole of mold 101, on one side from the mold 101 for leading to lower section Optical fiber passage path R10 advances with deviateing on one side to side bending, then, is successively attracted by suction device 105.It is another Aspect, after the size that the outer diameter of glass optical fiber 110 is adjusted to smaller than the insertion hole of mold 101, dandy 102a, 102b Terminate the empty of glass optical fiber 110 to draw.Part quilt of the glass optical fiber 110 between dandy 102a, 102b and suction device 105 Cutting, the insertion hole of mold 101 is inserted through from the cutting end for the side being connected to optical fiber base material.Then, in the cutting end Counterweight etc. is installed and makes the position of the capstan winch 103 of the arrival of glass optical fiber 110 lower section and become to be clipped by capstan winch 103 and annulus 104 State and hang around capstan winch 103.On the other hand, dandy 102a, 102b carry out glass optical fiber 110 wire drawing before, It is adjusted to the state isolated with glass optical fiber 110.

In this way, the tune machine of fiber fabrication apparatus 100 is completed.Then, by the draw of capstan winch 103 and annulus 104, from Optical fiber base material wire drawing goes out glass optical fiber 110.110 one side of glass optical fiber made of wire drawing is advanced along optical fiber passage path R10, and one Side is by mold 101 in its periphery successively application of resin.

However, the glass optical fiber drawn from optical fiber base material sky is curved in the top of mold in the tune machine of above-mentioned fiber manufacturing Song is equal and is easily broken off, and it is therefore possible to generate the fracture bits of the fragment of glass optical fiber, chips of glass etc. and remain in week of mold It encloses.In particular, just having started the glass optical fiber after empty draw since its outer diameter school is big, it is difficult to be bent and easily snap off, therefore, it is difficult to put Enter suction device 105.In this case, there are such problems, i.e., the glass optical fiber advanced in the insertion hole of mold (glass optical fiber of covering object) is contacted with fracture bits and is damaged, and thus causes the intensity of glass optical fiber insufficient.It is additionally present of this The problem of sample, is mixed into fracture bits in the resin of the periphery coated on glass optical fiber, thus leads to the coating of optical fiber bare wire Reliability reduce.

The present invention has been made in view of the above-described circumstances, and an object thereof is to provide the fracture bits for being able to suppress glass optical fiber The fiber fabrication apparatus and its tune machine method of generation.

Solution for solving the problem

Above-mentioned purpose is realized in order to solve above-mentioned problem, and fiber fabrication apparatus of the invention is characterized in that having: Heating furnace carries out heating melting to optical fiber base material；Traction mechanism, it is female from the optical fiber by the heating furnace heating melting Material draws glass optical fiber and adjusts the outer diameter of the glass optical fiber, and wire drawing goes out the outer diameter glass optical fiber adjusted；It applies Mechanism is applied, applies defined resin in the periphery of the outer diameter glass optical fiber adjusted；And transfer mechanism, make described Applying mechanism is kept out of the way in a manner of it can return from the passage path of the glass optical fiber.

In addition, fiber fabrication apparatus of the invention is on the basis of foregoing invention, which is characterized in that the heating furnace with Has the analyzer being measured to the outer diameter of the glass optical fiber between the applying mechanism.

In addition, fiber fabrication apparatus of the invention is on the basis of foregoing invention, which is characterized in that the fiber manufacturing dress It sets and has control unit, the control unit controls described lead based on the outer diameter of the glass optical fiber determined by the analyzer Draw mechanism.

In addition, fiber fabrication apparatus of the invention is on the basis of foregoing invention, which is characterized in that the analyzer is also right The outer diameter glass optical fiber adjusted is measured by position, and the control unit is adjusted based on the outer diameter determined The return position that the applying mechanism is controlled by position of the glass optical fiber.

In addition, fiber fabrication apparatus of the invention is on the basis of foregoing invention, which is characterized in that the fiber manufacturing dress It sets and has handle sturcture, the handle sturcture holds the optical fiber base material, and adjusts the optical fiber base material relative to the heating The relative position of furnace, the control unit control the handle sturcture so that described after the extraction for making the glass optical fiber stops Heater of the optical fiber base material far from the heating furnace.

In addition, the tune machine method of fiber fabrication apparatus of the invention is carried out to the fiber fabrication apparatus of following manufacture optical fiber The method of tune machine: heating melting is carried out to optical fiber base material using heating furnace；Gone out using traction mechanism from the optical fiber base material wire drawing Glass optical fiber with desired outer diameter；And utilize the periphery coating rule for the glass optical fiber that applying mechanism goes out in wire drawing Fixed resin forms coating, the tune machine method of the fiber fabrication apparatus by the periphery that is solidificated in of the defined resin Be characterised by comprising: keeping out of the way process, keep out of the way in process at this, make the applying mechanism from by the traction mechanism from described The passage path for the glass optical fiber that optical fiber base material is drawn is kept out of the way；Line footpath adjusts process, in line footpath adjustment process, by institute Traction mechanism is stated to draw glass optical fiber from the optical fiber base material and adjust the outer diameter of the glass optical fiber；And setting process, In In the setting process, return to the applying mechanism in the passage path of the outer diameter glass optical fiber adjusted.

In addition, the tune machine method of fiber fabrication apparatus of the invention is on the basis of foregoing invention, which is characterized in that packet Include: line footpath mensuration operation, in the line footpath mensuration operation, to the outer diameter of the glass optical fiber adjusted by the traction mechanism into Row measurement；Stop process, in the stopping process, is less than the applying mechanism in the outer diameter of the glass optical fiber determined In the case where the diameter of insertion hole, stop the extraction of the glass optical fiber carried out by the traction mechanism；And cutting work Sequence is cut off the outer diameter glass optical fiber adjusted stopped of drawing, the setting process exists in the cut off operation After the outer diameter glass optical fiber adjusted is cut off, make the applying mechanism back to the outer diameter glass optical fiber adjusted Passage path in.

In addition, the tune machine method of fiber fabrication apparatus of the invention is on the basis of foregoing invention, which is characterized in that described The tune machine method of fiber fabrication apparatus further comprises position finding process, in the position finding process, is led to by described Draw being measured by position for the outer diameter glass optical fiber adjusted of mechanism progress, the setting process is based on determining The outer diameter glass optical fiber adjusted the return position that the applying mechanism is controlled by position.

In addition, the tune machine method of fiber fabrication apparatus of the invention is on the basis of foregoing invention, which is characterized in that described Optical fiber base material is adjusted to relative to the relative position of the heating furnace, after the extraction for stopping the glass optical fiber, is made described Heater of the optical fiber base material far from the heating furnace.

Invention effect

According to the present invention, it can be achieved that being able to suppress the effect of the generation of the fracture bits of glass optical fiber.

Detailed description of the invention

Fig. 1 is the schematic diagram for indicating a structural example of fiber fabrication apparatus for embodiments of the present invention.

Fig. 2 is the flow chart for indicating an example of tune machine method of the fiber fabrication apparatus of embodiments of the present invention.

Fig. 3 be in the tune machine method for illustrate fiber fabrication apparatus slave mold keep out of the way process to setting process each process Schematic diagram.

Fig. 4 is to batch beam worker to optical fiber slave the threading process of mold in the tune machine method for illustrate fiber fabrication apparatus The schematic diagram of each process of sequence.

Fig. 5 is the figure for illustrating an example of tune machine method of fiber manufacturing.

Specific embodiment

Hereinafter, to fiber fabrication apparatus of the invention and its preferred embodiment of machine method is adjusted to carry out in detail referring to attached drawing Explanation.It should be noted that the present invention is not limited to present embodiments.In addition, attached drawing is schematically, it should be noted that respectively wanting Relationship, the ratio of each element of size of element etc. are sometimes different from actual conditions.Between attached drawing, sometimes also comprising each other Size the different part of relationship, ratio.In addition, in the drawings, suitably being marked to identical or corresponding element identical Appended drawing reference.

(structure of fiber fabrication apparatus)

Firstly, being illustrated to the structure of the fiber fabrication apparatus of embodiments of the present invention.Fig. 1 indicates of the invention The schematic diagram of one structural example of the fiber fabrication apparatus of embodiment.As shown in Figure 1, the fiber fabrication apparatus 1 has wire drawing Furnace 2, mold 4, transfer mechanism 5, curing mechanism 6, analyzer 7, handle sturcture 8, input unit 9, storage unit 10, is shown traction mechanism 3 Show portion 11 and control unit 12.

Fiber drawing furnace 2 is 15 heating melting of optical fiber base material that will become the object of extraction (wire drawing or empty drawing) of glass optical fiber 16 Heating furnace.As shown in Figure 1, fiber drawing furnace 2 has heater 2a, and it is configured at traction mechanism 3, curing mechanism 6, mold 4 and surveys Determine the top of device 7.Fiber drawing furnace 2 carries out at heating the optical fiber base material 15 being set in furnace in its entire periphery using heater 2a Reason.Fiber drawing furnace 2 melts optical fiber base material 15 in a manner of becoming the wire drawing or the empty state drawn that are able to carry out glass optical fiber 16 as a result, Melt.

Traction mechanism 3 has both following function, that is, from the function of 15 wire drawing of optical fiber base material or empty optical fiber 16 of cutting a piece of glass and The function that the optical fiber 17 that coating is formd in the periphery of glass optical fiber 16 is sent out to the coiling machines such as spool (not shown) side.Such as Shown in Fig. 1, traction mechanism 3 is configured at the lower section of fiber drawing furnace 2.In the present embodiment, fiber drawing furnace 2 above and lower section are led Draw between mechanism 3 that side configures in order analyzer 7, mold 4 and curing mechanism 6 downward from upper side.Traction mechanism 3 is matched It is placed in the underface of the curing mechanism 6.

In addition, the annulus 3c that traction mechanism 3 has capstan winch 3a, driving portion 3b and rotates freely.Capstan winch 3a is configured to logical It crosses and is rotated from the driving force that driving portion 3b is provided.Annulus 3c is configured to, and rotatably freely presses in the outer peripheral surface of capstan winch 3a The position for being wound with glass optical fiber 16 or optical fiber 17, rotated with the rotation of capstan winch 3a to the direction opposite with capstan winch 3a.

In the present embodiment, 3 one side of traction mechanism clamps glass optical fiber 16 or optical fiber between capstan winch 3a and annulus 3c 17, rotate capstan winch 3a and annulus 3c by the driving force of driving portion 3b on one side, thus by glass optical fiber 16 or optical fiber 17 from optical fiber 15 side of base material is towards coiling machine side-lining.Traction mechanism 3 is heated when fiber fabrication apparatus 1 adjusts machine from by fiber drawing furnace 2 as a result, The optical fiber base material 15 of melting draws glass optical fiber 16 to adjust the outer diameter of glass optical fiber 16, that is, in order to carry out making glass optical fiber 16 The outer diameter to attenuate adjusts and carries out empty drawing.Also, traction mechanism 3 goes out outer diameter glass light adjusted from 15 wire drawing of optical fiber base material Fibre 16.Also, it is adjusted that traction mechanism 3 goes out outer diameter after the completion of 1 tune machine of fiber fabrication apparatus, from 15 wire drawing of optical fiber base material Glass optical fiber 16, and Chao Xiang on one side from 15 side-lining optical fiber 17 of optical fiber base material while and to batch pusher side and send out.

Mold 4 is functioned as the applying mechanism of the regulation resin in the coating covering of the periphery of glass optical fiber 16.Such as Shown in Fig. 1, mold 4, which has, draws in the insertion hole 4a that capable outer diameter glass optical fiber 16 adjusted is inserted into for use by above-mentioned sky, And (specifically analyzer 7 above and lower section are consolidated between the fiber drawing furnace 2 being disposed above and the traction mechanism of lower section 3 Change between mechanism 6).It is not particularly illustrated in Fig. 1, but the feed path of the also regulation resin with covering of mold 4, the supply Path is connected to insertion hole 4a.Mold 4 is inserted in insert in 3 side of traction mechanism downward of 2 side of fiber drawing furnace from top The regulation resin of the periphery coating covering of the outer diameter of hole 4a glass optical fiber 16 adjusted.It should be noted that as this reality The regulation resin of the covering in mode is applied, such as the light that ultraviolet curable resin etc. passes through defined wavelength band can be enumerated Irradiation and cured photocurable resin etc..

Transfer mechanism 5 makes mold 4 from the passage path for the glass optical fiber 16 for adjusting outer diameter by traction mechanism 3 can return to Mode is kept out of the way.As shown in Figure 1, transfer mechanism 5 has supporting part 5a and driving portion 5b.Supporting part 5a is not to close insertion hole 4a's The form of opening is fixed with mold 4, and supports quilt in such as passage path of glass optical fiber 16 mode parallel with insertion hole 4a Fixed mold 4.Driving portion 5b is engaged via drive shaft etc. with supporting part 5a, will be fixed with the supporting part 5a of mold 4 to opposite It is transferred in the direction that the passage path of glass optical fiber 16 separates or close direction.Transfer mechanism 5 is adjusting glass by traction mechanism 3 Before the outer diameter of glass optical fiber 16, make the passing through from glass optical fiber 16 together with supporting part 5a of mold 4 using the effect of driving portion 5b Keep out of the way in path.In addition, transfer mechanism 5 utilizes the work of driving portion 5b after the outer diameter for adjusting glass optical fiber 16 by traction mechanism 3 With returning to mold 4 together with supporting part 5a in the passage path of outer diameter glass optical fiber 16 adjusted.Transfer mechanism as a result, 5 make the position consistency of the passage path of outer diameter glass optical fiber 16 adjusted and the insertion hole 4a of mold 4.

It should be noted that the driving method of the driving portion 5b as transfer mechanism 5, such as vapour-pressure type, liquid can be enumerated Pressure type, electrodynamic type etc., but from the viewpoint of responsiveness is good, preferably vapour-pressure type or fluid pressure type.In turn, from avoiding oil component attached To from the perspective of glass optical fiber 16 or optical fiber 17, more preferable vapour-pressure type.

Curing mechanism 6 is that the regulation resin of the covering to the periphery by mold 4 coated on glass optical fiber 16 is (following suitable When referred to as covering resin) carry out cured mechanism.Curing mechanism 6 by ultraviolet lamp such as constituting, such as Fig. 1 institute Show, between the traction mechanism 3 of the mold 4 being disposed above and lower section.Curing mechanism 6 is advanced to from mold 4 towards traction mechanism 3 Glass optical fiber 16 (being coated with the glass optical fiber 16 of the state of covering resin in periphery by mold 4) irradiate ultraviolet light isotactic The light of fixed wavelength band, curing mechanism 6 is by the covering resin solidification of the periphery of glass optical fiber 16 and in the periphery shape as a result, At coating.As a result, glass optical fiber 16 becomes the optical fiber 17 (optical fiber wire rod) for having coating in periphery.Optical fiber 17 is on one side Drawn by traction mechanism 3, on one side from curing mechanism 6 via traction mechanism 3 to coiling machine skidding into then, being rolled up by the coiling machine It takes.It should be noted that curing mechanism 6 can be heater etc. as needed, it is also possible to ultraviolet lamp and heating The combination of device etc..

Here, WOW can be enumerated as the method for forming coating in the periphery of outer diameter glass optical fiber 16 adjusted (Wet-on-Wet) mode and WOD (Wet-on-Dry) mode.WOW mode is following method, that is, using mold 4 in glass light The photocurable resin (being in the present embodiment ultraviolet curable resin) of the periphery coating multilayer of fibre 16, utilizes curing mechanism 6, which penetrate (being in the present embodiment ultraviolet light irradiation) by an illumination, makes the photocurable resin of the multilayer concentrate solidification.WOD Mode is to configure the group of multistage mold 4 and curing mechanism 6, respectively forms one layer of coating by mold 4 and curing mechanism 6 at different levels Method.Either in WOW mode or WOD mode in formula, the main layer of inside is all formed in the periphery of glass optical fiber 16 With at least two layers of the coating of the secondary layer in outside.In the present embodiment, it instantiates and applies two layer of one overlay in a manner of WOW The fiber fabrication apparatus 1 of the apparatus structure of the mold 4 and curing mechanism 6 of lid.

Analyzer 7 measures the outer diameter of glass optical fiber 16 and passes through position.As shown in Figure 1, analyzer 7 have light source portion 7a and Between the mold 4 of acceptance part 7b, the fiber drawing furnace 2 being disposed above and lower section.Light source portion 7a is to from 2 side of fiber drawing furnace towards mold 4 Skidding into glass optical fiber 16 issue as defined in light L1 (such as light of planar).Acceptance part 7b receives the light issued from light source portion 7a Ll.The light of glass optical fiber 16 is included through in the received smooth L1.Analyzer 7 is based on passing through between light source portion 7a and acceptance part 7b Light reception intensity of the light L1 transmitted and received by glass optical fiber 16 etc. is to measure the outer diameter of glass optical fiber 16 and by both positions. In particular, in the present embodiment, analyzer 7 measures the outer diameter of the glass optical fiber 16 adjusted by traction mechanism 3, further measure Outer diameter glass optical fiber 16 adjusted passes through position.Analyzer 7 is whenever such outer diameter for measuring glass optical fiber 16 and passes through position When setting, control unit 12 is sent to by obtained outer diameter and by the measurement result of position.

Handle sturcture 8 holds optical fiber base material 15, adjusts relative position of the optical fiber base material 15 relative to fiber drawing furnace 2.Such as Fig. 1 institute Show, handle sturcture 8 holds the optical fiber base material 15 for being set to fiber drawing furnace 2 from top.Handle sturcture 8 makes the optical fiber base material held in this way 15 is down or up along its length, adjusts optical fiber base material 15 (especially its lower end) adding relative to fiber drawing furnace 2 as a result, The relative position of hot device 2a.

Input unit 9 is made of input equipments such as keyboard, mouses, is operated according to the input of operator desired information is defeated Enter to control unit 12.As the input information inputted by input unit 9, such as the tune machine of indexed optical fiber manufacturing device 1 can be enumerated Or the instruction information of the beginning of operating, the outer diameter reference value information of a reference value of the outer diameter of expression glass optical fiber 16, expression optical fiber The manufacturing condition information etc. of 17 manufacturing condition (target value etc. of outer diameter).

Storage unit 10 is made of the non-volatile memory device etc. for storing various information renewablely of hard disk drive etc.. The storage of storage unit 10 reads the information read by the instruction of control unit 12 by the information of the instruction storage of control unit 12 from storage information And it is sent to control unit 12.As the storage information stored by storage unit 10, for example, can enumerate inputted by input unit 9 it is defeated Enter information, indicate the outer diameter of the glass optical fiber 16 measured by analyzer 7 and by measurement information of measurement result of position etc..

Display unit 11 shows that equipment is constituted by liquid crystal display etc..The letter that the display of display unit 11 is shown by the instruction of control unit 12 Breath.As the information shown by display unit 11, such as the input information inputted by input unit 9 can be enumerated, surveyed by analyzer 7 Tune the machine situation or the information of operational situation etc. of fixed measurement information, expression fiber fabrication apparatus 1.

Control unit 12 is transported by executing the CPU of preset program, storing the ROM of the various information such as program and temporarily store RAM of information such as parameter etc. are calculated to constitute.Control unit 12 controls the drive of each structural portion, such as traction mechanism 3 of fiber fabrication apparatus 1 Dynamic portion 3b, the driving portion 5b of transfer mechanism 5, analyzer 7, handle sturcture 8, storage unit 10 and display unit 11, and to analyzer 7, the input and output of the signal between input unit 9 and storage unit 10 are controlled.

For example, in the present embodiment, control unit 12 by the driving portion 3b of control capstan winch 3a, to traction mechanism 3 into Capable slave optical fiber base material 15 is drawn (sky is drawn or wire drawing) glass optical fiber 16 and is controlled.In particular, control unit 12 is based on by measuring The outer diameter for the glass optical fiber 16 that device 7 measures controls traction mechanism 3.Specifically, in the glass optical fiber 16 measured by analyzer 7 The outer diameter insertion hole 4a that is less than mold 4 diameter in the case where, control unit 12 is to stop drawing (sky draw) from optical fiber base material 15 The mode of glass optical fiber 16 controls traction mechanism 3.In addition, control unit 12 is controlled by controlling the driving portion 5b of transfer mechanism 5 The avoidance operation of the mold 4 carried out by transfer mechanism 5 and the return action after keeping out of the way.At this point, control unit 12 is based on by analyzer 7 The return position that mold 4 is controlled by position of the outer diameter of measurement glass optical fiber 16 adjusted.Also, control unit 12 controls The optical fiber base material 15 of handle sturcture 8 made to be set in fiber drawing furnace 2 is close relative to the heater 2a of fiber drawing furnace 2 or separates dynamic Make.In particular, control unit 12 controls handle sturcture 8, after stopping in the empty drawing for making glass optical fiber 16, make the light in fiber drawing furnace 2 Heater 2a of the fine base material 15 far from fiber drawing furnace 2.

(the tune machine method of fiber fabrication apparatus)

Next, being illustrated to the tune machine method of the fiber fabrication apparatus 1 of embodiments of the present invention.Fig. 2 is to indicate The flow chart of an example of the tune machine method of the fiber fabrication apparatus of embodiments of the present invention.Fig. 3 is to illustrate fiber fabrication apparatus Tune machine method in slave mold keep out of the way process to setting process each process schematic diagram.Fig. 4 is to illustrate that fiber manufacturing fills The threading process slave mold in tune machine method set to optical fiber each process for batching preparatory process schematic diagram.It needs to illustrate , in Fig. 3,4, in order to be easy to illustrate each process, curing mechanism 6, input unit 9, storage unit 10 and display unit 11 is omitted Diagram.

As shown in Figure 1, fiber fabrication apparatus 1 as follows manufacture optical fiber 17, that is, using fiber drawing furnace 2 will to optical fiber base material 15 into Row heating melting has been provided desired using the traction mechanism 3 for the lower section for being set to fiber drawing furnace 2 from 15 wire drawing of optical fiber base material Outer diameter glass optical fiber 16, using having the mold 4 of insertion hole 4a inserted for glass optical fiber 16 made of wire drawing, from upper The periphery coating covering that 3 side of traction mechanism of 2 side of fiber drawing furnace of side downward is inserted through the glass optical fiber 16 of insertion hole 4a is used Resin forms coating by the periphery that is solidificated in of the covering resin carried out by curing mechanism 6.It is filled in such fiber manufacturing It sets in 1 tune machine method, carries out each process of step S101~S111 shown in Fig. 2.

Specifically, as shown in Fig. 2, in the tune machine method of fiber fabrication apparatus 1, firstly, carrying out making mold 4 from by leading That draws that the passage path of the glass optical fiber 16 that mechanism 3 is drawn from optical fiber base material 15 keeps out of the way keeps out of the way process (step S101).

In step s101, state A1 as shown in Figure 3 is such, and optical fiber base material 15 is in the state held by handle sturcture 8 Under be set to fiber drawing furnace 2.Fiber drawing furnace 2 carries out heating melting to set optical fiber base material 15.Control unit 12 is from heating melting Optical fiber base material 15 draw glass optical fiber 16 before, send the drive of transfer mechanism 5 for the control signal kept out of the way for indicating mold 4 Dynamic portion 5b.Transfer mechanism 5, which is based on the control signal, acts driving portion 5b, passes through mold 4 together with supporting part 5a from optical fiber Path R1 keeps out of the way.In the present embodiment, optical fiber passage path R1 is until being adjusted to the insertion hole 4a than mold 4 (referring to figure 1) passage path for the glass optical fiber 16 that slave optical fiber base material 15 until small outer diameter is drawn, i.e. female from optical fiber by traction mechanism 3 The passage path of the empty glass optical fiber 16 drawn of material 15.

After keeping out of the way mold 4 from optical fiber passage path R1, glass optical fiber 16 is drawn from optical fiber base material 15, passes through installation weight The modes such as code, the position of traction mechanism 3 is fully drawn out to along optical fiber passage path R1.Then, glass optical fiber 16 is hung around Between capstan winch 3a and annulus 3c.At this point, the driving portion 3b of traction mechanism 3 is stopped based on the control of control unit 12.7 base of analyzer Become the state without measurement in the control of control unit 12.On the other hand, control of the handle sturcture 8 based on control unit 12, with The mode that glass optical fiber 16 can be drawn adjusts the opposite position of the lower end of optical fiber base material 15 relative to the heater 2a of fiber drawing furnace 2 It sets.

Carried out it is above-mentioned keep out of the way process after, carry out drawing glass optical fiber from optical fiber base material 15 using traction mechanism 3 16 and line footpath adjustment process (step S102) that the outer diameter of glass optical fiber 16 is adjusted.In step s 102, as shown in Figure 3 State A2 it is such, traction mechanism 3 based on the control of control unit 12 make driving portion 3b drive, make the state for clipping glass optical fiber 16 Capstan winch 3a and annulus 3c rotation.Traction mechanism 3 is cut a piece of glass optical fiber 16 from 15 sky of optical fiber base material as a result,.Traction mechanism 3 is by controlling The empty pulling rate degree that portion 12 processed indicates successively carries out the empty of such glass optical fiber 16 and draws, thus the outer diameter of adjustment glass optical fiber 16 with Glass optical fiber 16 is set to attenuate.At this point, control of the handle sturcture 8 based on control unit 12, persistently adjusts the lower end of optical fiber base material 15 The relative position of heater 2a relative to above-mentioned fiber drawing furnace 2.Transfer mechanism 5 is based on the driving portion 5b carried out by control unit 12 Control, maintain the passage path (optical fiber passage path R1 shown in state A1) for making mold 4 from the glass optical fiber 16 in empty draw The state kept out of the way.

Then, the line footpath mensuration operation (step being measured to the outer diameter of the glass optical fiber 16 adjusted by traction mechanism 3 is carried out Rapid S103).In step s 103, state A2 as shown in Figure 3 is such, control of the analyzer 7 based on control unit 12, measures by leading Draw the outer diameter of the glass optical fiber 16 in the empty drawing of the progress of mechanism 3.At this point, light source portion 7a issues the intensity indicated by control unit 12 Light L1.Acceptance part 7b receives the light L1 from light source portion 7a via the glass optical fiber 16 in empty draw.Analyzer 7 is based in this way in light The light reception intensity etc. of the light L1 transmitted and received between source portion 7a and acceptance part 7b, outer diameter to the glass optical fiber 16 in empty draw and its It is measured together by position.Analyzer 7 is by the outer diameter of the glass optical fiber 16 obtained in this way and by the measurement result of position It is sent to control unit 12.

Then, carry out the insertion hole 4a's (referring to Fig. 1) for whether being less than mold 4 to the outer diameter of the glass optical fiber 16 measured The judgment step (step S104) that diameter is judged.In step S104, control unit 12 obtains glass optical fiber 16 from analyzer 7 Outer diameter measured value.In addition, control unit 12 reads outer diameter reference value information from storage unit 10 (referring to Fig. 1), and obtains and read The a reference value of the outer diameter of glass optical fiber 16 shown in the outer diameter reference value information taken.In the present embodiment, as a reference value, Such as it is set as the diameter (internal diameter) of the insertion hole 4a of mold 4.Control unit 12 is by the measurement of the outer diameter of the glass optical fiber 16 of acquirement Value is compared with a reference value, to the measured value of the outer diameter whether be less than a reference value, i.e. whether less than insertion hole 4a diameter into Row judgement.

On the basis of the measured value of above-mentioned outer diameter more than value, control unit 12 is judged as the glass optical fiber in empty drawing 16 outer diameter is not less than a reference value (diameter of=insertion hole 4a) (step S104, no).In this case, as shown in Fig. 2, returning The line footpath of above-mentioned step S102 adjusts process, repeats the later each process of line footpath adjustment process.

On the other hand, in the case where the measured value of above-mentioned outer diameter is less than a reference value, control unit 12 is judged as in empty drawing The outer diameter of glass optical fiber 16 is less than a reference value (diameter of=insertion hole 4a) (step S104, yes).In this way, in the glass measured In the case where diameter of the outer diameter of optical fiber 16 less than insertion hole 4a, made drawing for the glass optical fiber carried out by traction mechanism 3 16 The stopping process (step S105) stopped out.In step s105, control unit 12 is to stop the side of the driving portion 3b of traction mechanism 3 Formula is controlled, and controls traction mechanism 3 by the control to stop optical fiber 16 of cutting a piece of glass from 15 sky of optical fiber base material.It twists as a result, Disk 3a and annulus 3c stop rotating in the state that mutual coordinated clamps glass optical fiber 16.As a result, using from light The adjustment for the outer diameter that fine 15 sky of base material draws in capable glass optical fiber 16 terminates.

After having carried out above-mentioned stopping process, carry out to the outer diameter carried out by traction mechanism 3 glass optical fiber adjusted The 16 position finding process (step S106) being measured by position.In step s 106, analyzer 7 is based on control unit 12 Control being measured by position to outer diameter glass optical fiber adjusted 16.At this point, the case where with above-mentioned step S103 Intensity identical, that light source portion 7a and acceptance part 7b are indicated via the outer diameter transmitting and receiving of glass optical fiber 16 adjusted by control unit 12 Light L1.Light reception intensity etc. of the analyzer 7 based on the light L1 transmitted and received between light source portion 7a and acceptance part 7b in this way, externally Diameter glass optical fiber 16 adjusted is measured together with its outer diameter by position.The glass light that analyzer 7 will obtain in this way The measurement result by position and outer diameter of fibre 16 is sent to control unit 12.

After having carried out above-mentioned position finding process, it stopped by step S105 from the empty drawing of optical fiber base material 15 to being in The cut off operation (step S107) that the outer diameter of state glass optical fiber 16 adjusted is cut off.In step s 107, control unit 12 control display unit 11 (referring to Fig. 1) based on following situation so that the information of the cutting of glass optical fiber 16, i.e. institute are urged in its display The state that diameter situation of the outer diameter of the glass optical fiber 16 of measurement less than insertion hole 4a, the empty drawing in glass optical fiber 16 stop Situation and the case where completion by position finding of outer diameter glass optical fiber 16 adjusted.Based on shown by display unit 11 Information, outer diameter glass optical fiber 16 adjusted is by defined disconnecting device or fixture, in the mold 4 with such as backoff state Short transverse (length direction of glass optical fiber 16) on position compared on the lower part be cut off.As a result, as shown in Figure 3 State A3 it is such, outer diameter glass optical fiber 16 adjusted be divided into the upside being connected with optical fiber base material 15 glass optical fiber 16 and The glass optical fiber 16 of the downside clamped by traction mechanism 3.It should be noted that the glass optical fiber being cut off in the cut off operation 16 outer diameter is adjusted to sufficiently fine (such as 0.2mm or less), therefore is easy cutting, and fracture bits are not likely to produce in cutting.

In this way, after outer diameter glass optical fiber 16 adjusted is cut off, opposite position of the optical fiber base material 15 relative to fiber drawing furnace 2 It sets and is adjusted to make heater 2a of the optical fiber base material 15 far from fiber drawing furnace 2.At this point, input unit 9 (referring to Fig. 1) is according to operator Input operation, information input that the cutting of glass optical fiber 16 is completed will be indicated to control unit 12.Control unit 12 is based on by being somebody's turn to do The input information that input unit 9 inputs, sends handle sturcture 8 for the control signal that indexed optical fiber base material 15 leaves from fiber drawing furnace 2. Handle sturcture 8 is based on the control signal, makes optical fiber base material 15 along on its length direction (i.e. the length direction of glass optical fiber 16) It rises.Optical fiber base material 15 is adjusted to make optical fiber base material 15 (especially its lower end) relative to the relative position of fiber drawing furnace 2 as a result, Heater 2a far from fiber drawing furnace 2.As a result, being able to suppress the progress of the heating melting of optical fiber base material 15.On the other hand, right The glass optical fiber 16 of downside cuts off end 16b at it and pastes the engagement members 19 such as adhesive tape, is temporarily fixed to such as traction mechanism 3 Top desired position.

Then, it carries out making mold 4 back to the setting process (step in the passage path of outer diameter glass optical fiber 16 adjusted Rapid S108).In step S108, the information that control unit 12 is completed based on the cutting of above-mentioned glass optical fiber 16 is adjusted in outer diameter After glass optical fiber 16 afterwards is cut off, control transfer mechanism 5 is so that the leading to back to outer diameter glass optical fiber 16 adjusted of mold 4 It crosses in path.At this point, control unit 12 reads from storage unit 10 (referring to Fig. 1) and obtains in above-mentioned step S106 by analyzer The outer diameter glass optical fiber 16 adjusted of 7 measurements passes through position.Then, the cutting based on above-mentioned glass optical fiber 16 of control unit 12 The disconnected information completed sends instruction mold 4 returning by position to the glass optical fiber 16 to the driving portion 5b of transfer mechanism 5 Control signal.Transfer mechanism 5, which is based on the control signal, acts driving portion 5b, and state A3 as shown in Figure 3 is such as a result, makes Mold 4 returns in optical fiber passage path R1 together with supporting part 5a from retreating position, makes the insertion hole 4a and optical fiber of the mold 4 The position consistency of passage path R1.It should be noted that the cutting end 16a of the glass optical fiber 16 of upside is in keeps out of the way in advance The state of defined position contacts to avoid with the mold 4 of return.

Here, as described above, optical fiber passage path R1 is the passage path of the glass optical fiber 16 in empty draw.After outer diameter adjustment Glass optical fiber 16 when being gone out by traction mechanism 3 from 15 wire drawing of optical fiber base material, along the optical fiber passage path R1 advance.It is such Optical fiber passage path R1 and the outer diameter glass adjusted measured in above-mentioned position finding process (step S106) by analyzer 7 Glass optical fiber 16 passes through position consistency.That is, the return position of the mold 4 in above-mentioned setting process is based on being measured by analyzer 7 Outer diameter glass optical fiber 16 adjusted by position, be the insertion hole 4a and light for making the mold 4 by the control of control unit 12 Fine passage path R1 is accurately consistent.It should be noted that " insertion hole 4a is consistent with optical fiber passage path R1 " refers to insert The central axis of hole 4a and the position consistency of optical fiber passage path R1.

After having carried out above-mentioned setting process, carrying out passes through outer diameter glass optical fiber 16 adjusted leads to back to optical fiber Cross the threading process (step S109) of the insertion hole 4a of the mold 4 in the R1 of path.In step S109, the glass optical fiber 16 of upside It is held by clamping device or fixture etc., state A4 as shown in Figure 4 is such, is inserted through return with the direction from upside towards downside In the insertion hole 4a of mold 4 afterwards.Here, as described above, the outer diameter of the glass optical fiber 16 of upside be adjusted to it is sufficiently fine (such as 0.2mm or less), therefore be difficult to be broken bending when passing through in insertion hole 4a.The glass optical fiber 16 of such upside Cutting end 16a will not be broken, and be extended in insertion hole 4a to the downside of mold 4.

In addition, in the step 8109, as described above, control unit 12 is based on indicating mould to transfer mechanism 5 as above The case where return of tool 4, handle sturcture 8 is sent to the close control signal of fiber drawing furnace 2 by indexed optical fiber base material 15.Holding machine Structure 8 is based on the control signal, declines optical fiber base material 15 along the length direction of glass optical fiber 16, makes optical fiber base material 15 as a result, The heater 2a of (especially its lower end) close to fiber drawing furnace 2.As a result, the inhibition of the heating melting of optical fiber base material 15 is solved It removes.

After having carried out above-mentioned threading process, carrying out will be in the upside of the state for the insertion hole 4a for being inserted through mold 4 Glass optical fiber 16 engaged with the glass optical fiber 16 of the downside in the state clamped by the capstan winch 3a of traction mechanism 3 and annulus 3c Bonding process (step S110).In step s 110, state A4 as shown in Figure 4 is such, will be passed through using engagement member 19 The cutting end 16a of the glass optical fiber 16 for the upside that above-mentioned threading process extends from insertion hole 4a to the downside of mold 4 with from The cutting end 16b engagement of the glass optical fiber 16 for entering the downside that side extends towards 4 side of mold of traction mechanism 3.By the engagement structure The mutual bonding part 16c of cutting end 16a, 16b that part 19 is formed is located at the lower section of mold 4, therefore will not be inserted through mold 4 Insertion hole 4a, and glass optical fiber 16 will not be hindered to insert into insertion hole 4a.

It should be noted that in each process of above-mentioned step S106~S110, based on the drive carried out by control unit 12 The control of dynamic portion 3b, traction mechanism 3 stop the rotation of capstan winch 3a and annulus 3c.In addition, in above-mentioned step S107~S110 Each process in, control of the analyzer 7 based on control unit 12 stops the outer diameter to glass optical fiber 16 and the measurement by position (referring to the state A4 of the state A3 and Fig. 4 of Fig. 3).

After having carried out above-mentioned bonding process, carry out to the optical fiber of manufacturing object (in the present embodiment for shown in Fig. 1 Optical fiber 17) batch be prepared batch preparatory process (step S111).In step S111, traction mechanism 3, drag-over unit Structure 5, analyzer 7 and handle sturcture 8 enable the optical fiber of manufacturing object pass through dragger as a result, by 12 suitable control of control unit The coiling machine (not shown) of the rear class of structure 3 is batched.

At this point, input unit 9 (referring to Fig. 1) is operated according to the input of operator, the engagement for indicating glass optical fiber 16 is completed Information input to control unit 12.Control unit 12 will be indicated from optical fiber base material based on the input information inputted by the input unit 9 The control signal of the wire drawing of 15 glass optical fiber 16 is sent to the driving portion 3b of traction mechanism 3.Traction mechanism 3 is by being based on the control The driving force of the driving portion 3b of signal processed rotates capstan winch 3a and annulus 3c.State A5 as shown in Figure 4 is such as a result, traction Mechanism 3 goes out glass optical fiber 16 from 15 wire drawing of optical fiber base material of heating melting, and draws the bonding part of the glass optical fiber 16 16c.As a result, bonding part 16c is sent out to the side that goes out of traction mechanism 3.Then, bonding part 16c is cut off and is gone It removes.

In addition, the periphery coating covering resin for the glass optical fiber 16 that mold 4 goes out in wire drawing.The solidification of the back segment of mold 4 Mechanism 6 (referring to Fig. 1) makes the covering resin solidification by light irradiation, to form coating in the periphery of the glass optical fiber 16 And become optical fiber 17.The optical fiber 17 of formation is drawn by traction mechanism 3, and then above-mentioned bonding part 16c is by going out to traction mechanism 3 It sends out side.Traction mechanism 3 continues to go out glass optical fiber 16 from 15 wire drawing of optical fiber base material on one side, on one side successively traction optical fiber 17, by light The front end portion of fibre 17 passes out to the coiling machine of rear class.Then, the front end portion of optical fiber 17 hangs around the coiling machine.Such one Come, glass optical fiber 16 can be gone out from 15 wire drawing of optical fiber base material and be able to carry out the optical fiber 17 for being formed on the outer periphery coating layer by becoming The state batched, to complete the tune machine of fiber fabrication apparatus 1.

It should be noted that batch in preparatory process at this, control of the analyzer 7 based on control unit 12 and in light source portion 7a It carries out the transmitting and receiving of light L1 between acceptance part 7b, outer diameter to the glass optical fiber 16 after wire drawing and is surveyed by position It is fixed.Control unit 12 controls drawing speed by controlling the driving portion 3b of traction mechanism 3, and is controlled by control handle sturcture 8 Relative position of the optical fiber base material 15 processed relative to fiber drawing furnace 2, so that the outer diameter measured by analyzer 7 is the target of glass optical fiber 16 Value.

As described above, in embodiments of the present invention, drawn in by the sky of glass optical fiber it is capable Before outer diameter adjustment, make the mold of the applying mechanism between the traction mechanism as the fiber drawing furnace and lower section that are disposed above from upper The passage path of glass optical fiber between the fiber drawing furnace of side and the traction mechanism of lower section is kept out of the way, and then, passes through the dragger of lower section Structure is cut a piece of glass optical fiber from the optical fiber base material sky of the fiber drawing furnace heating melting by top, the outer diameter of glass optical fiber is adjusted, by glass The sky of optical fiber is drawn in after capable outer diameter adjustment terminates, and makes the mold kept out of the way passing through back to outer diameter glass optical fiber adjusted In path, make the position consistency of the passage path of outer diameter glass optical fiber adjusted and the insertion hole of the mold.

The glass optical fiber that therefore, there is no need to draw from optical fiber base material sky is (especially not by the abundant empty thicker outer diameter drawn The glass optical fiber of (such as outer diameter be 1~2m or so)) to its passage path outside sweep mold is avoided, it just can be by glass optical fiber Between the traction mechanism of fiber drawing furnace and lower section above straight line it is air-ground drawing and more carefully be adjusted to desired outer diameter (such as 0.2mm or less), and in the state that mold is not present on the direction (lower direction) for optical fiber of cutting a piece of glass from optical fiber base material sky, energy Enough carry out the empty outer diameter adjustment drawn based on glass optical fiber.The glass optical fiber of outer diameter regulating object is not easily broken in sky is drawn as a result, It splits, is able to suppress the generation (especially generating above mold) of the fracture bits of the glass optical fiber.As a result, when utilizing mold When the periphery of glass optical fiber applies covering resin, it can prevent the glass optical fiber due to covering object from contacting with fracture bits and draw The defect that rises and lead to the situation of intensity deficiency and consider to be worth doing due to fracture to be mixed into glass optical fiber covering resin and lead to glass light The case where reliability of the coating of fine periphery reduces.

In addition, the traction mechanism for going out outer diameter glass optical fiber adjusted from the optical fiber base material wire drawing of heating melting is used for The empty of above-mentioned glass optical fiber is drawn, and there is no need to be arranged to cut a piece of glass dedicated unit (such as a pair shown in fig. 5 of optical fiber for sky Dandy 102a, 102b etc.).As a result, the scale and structure of fiber fabrication apparatus can be simplified, and it can reduce dress Effort that the maintenance set is spent, operating cost.

In addition, in embodiments of the present invention, measurement outer diameter glass optical fiber adjusted by position, and based on surveying The return position that mold is controlled by position for the glass optical fiber made.Therefore, keep mold adjusted back to outer diameter When in the passage path of glass optical fiber, the position of the passage path of the glass optical fiber and the insertion hole of mold can be made accurately Unanimously.

It should be noted that in the above-described embodiment, instantiating and applying WOW mode as glass optical fiber periphery The fiber fabrication apparatus of coverage mode, but the present invention is not limited to this.It in the present invention, can also in fiber fabrication apparatus The apparatus structure of applying mechanism and curing mechanism in a manner of application WOW, can also apply applying mechanism and the solidification of WOD mode The apparatus structure of mechanism.In addition, the mold as applying mechanism can be one-piece type mold, it is also possible to be divided into more The mold of a Splittable (such as two Splittables).Furthermore it is possible to be the mold for only applying one layer, it is also possible to apply two together The mold of layer.

In addition, in the above-described embodiment, by outer diameter glass optical fiber adjusted be cut to upside glass optical fiber and The glass optical fiber of downside, after the glass optical fiber of upside is inserted through the insertion hole of mold, using engagement member by the glass on the upside of this The cutting end of glass optical fiber is engaged with the cutting end of the glass optical fiber of downside, the optical fiber base material being formed in the fiber drawing furnace of top The glass optical fiber of the consecutive connected between the traction mechanism of lower section, but the present invention is not limited to this.For example, it can be, After the glass optical fiber of upside is inserted through the insertion hole of mold, counterweight is installed in the cutting end of the glass optical fiber on the upside of this, Glass optical fiber is drawn from optical fiber base material by the weight of the counterweight on one side, the cutting end is made to drop to the position of traction mechanism on one side It sets, the glass optical fiber on the upside of this is then hung around into traction mechanism (such as capstan winch etc.).

Also, in the above-described embodiment, in the stopping process of step S105, make outer diameter glass optical fiber adjusted Traveling stop, then, in the position finding process of step S106, measure the glass optical fiber in the stopping by position, But the present invention is not limited to this.Outer diameter glass optical fiber adjusted can also be with the outer diameter one of the glass optical fiber by position Play measurement.For example, it can be measure the outer diameter of the glass optical fiber in empty draw and pass through position in step S103 shown in Fig. 2 It sets, outer diameter glass adjusted will be used as by position less than measuring together with the outer diameter of a reference value with being judged as in step S104 Glass optical fiber passes through position.

In addition, in the above-described embodiment, in the cut off operation of step S107, outer diameter glass optical fiber adjusted exists It is cut off than the part of mold on the lower, but the present invention is not limited to this.In the cut off operation of step S107, outer diameter adjustment Glass optical fiber afterwards can be cut off in the part more against the top than mold, can also be in the part quilt of height and position identical as mold Cutting.No matter which kind of situation, if cutting after upside glass optical fiber do not reach currently return after mold insertion hole, As long as glass optical fiber is further drawn from optical fiber base material 15 using its self weight etc..

Also, in the above-described embodiment, after the cutting of glass optical fiber, optical fiber base material is adjusted relative to fiber drawing furnace Relative position and make optical fiber base material far from the heater of fiber drawing furnace, but the present invention is not limited to this.In order to make optical fiber base material Far from the heater of fiber drawing furnace, adjustment optical fiber base material can also be step S105's relative to the relative position of above-mentioned fiber drawing furnace After stopping process, after the position finding process of step S106, after the cut off operation of step S107 in any opportunity carry out.That is, adjusting As long as whole optical fiber base material is (empty in the extraction for making the glass optical fiber carried out by traction mechanism relative to the relative position of above-mentioned fiber drawing furnace Draw) stop after carry out.

In addition, in the above-described embodiment, using control unit control can return to mold the transfer mechanism kept out of the way Movement and the driving of traction mechanism, but the present invention is not limited to this.For example, the avoidance operation of the mold carried out by transfer mechanism And return action can be carried out by being manually operated, the driving (rotation of capstan winch) of traction mechanism can also pass through manual operation To start or stop.Also, the return action of the mold carried out by transfer mechanism can also be by the driving of limitation transfer mechanism The movable range of axis determines the return position of mold.

In addition, the present invention is not limited to above-mentioned embodiments.Above-mentioned each component is appropriately combined and structure At structure be also contained in the present invention.In addition, other made based on above-mentioned embodiment by those skilled in the art Embodiment, embodiment and application technology etc. are all contained in scope of the invention.

Industrial availability

As described above, fiber fabrication apparatus of the invention and its tune machine method are useful to the adjustment of the outer diameter of glass optical fiber , the fiber fabrication apparatus and its tune machine method of the generation of the fracture bits particularly suitable for being able to suppress glass optical fiber.

Description of symbols:

1 fiber fabrication apparatus

2 fiber drawing furnaces

2a heater

3 traction mechanisms

3a capstan winch

3b driving portion

3c annulus

4 molds

4a insertion hole

5 transfer mechanisms

5a supporting part

5b driving portion

6 curing mechanisms

7 analyzers

7a light source portion

7b acceptance part

8 handle sturctures

9 input units

10 storage units

11 display units

12 control units

15 optical fiber base materials

16 glass optical fibers

16a, 16b cut off end

The bonding part 16c

17 optical fiber

19 engagement members

100 fiber fabrication apparatus

101 molds

102a, 102b dandy

103 capstan winches

104 annulus

105 suction devices

110 glass optical fibers

L1 light

R1, R10 optical fiber passage path.