CN108640502A - The manufacturing method of optical fiber - Google Patents
The manufacturing method of optical fiber Download PDFInfo
- Publication number
- CN108640502A CN108640502A CN201810833949.8A CN201810833949A CN108640502A CN 108640502 A CN108640502 A CN 108640502A CN 201810833949 A CN201810833949 A CN 201810833949A CN 108640502 A CN108640502 A CN 108640502A
- Authority
- CN
- China
- Prior art keywords
- auxiliary rod
- preform
- optical fiber
- manufacturing
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
- C03B37/02736—Means for supporting, rotating or feeding the tubes, rods, fibres or filaments to be drawn, e.g. fibre draw towers, preform alignment, butt-joining preforms or dummy parts during feeding
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The invention discloses a kind of manufacturing methods of optical fiber, which is characterized in that includes the following steps：1) preform and auxiliary rod are linked together；2) preform after connection is subjected to wire-drawing operation；3) coating solidification is carried out to optical fiber；Wherein, step 1) is attached by preform and auxiliary rod attachment device；Preform and auxiliary rod attachment device, including：For installing the auxiliary rod link of auxiliary rod, adjustable shelf, for adjusting pole length adjusting part of the adjustable shelf relative to auxiliary rod link relative position, two movable jaws from sandwich preform, two clamping jaw arms, spring and conical ring set.The invention has the beneficial effects that causing deflection or fracture it is not necessary that preform and auxiliary rod welding are avoided release internal stress after prior welding mode is heated, fiber manufacturing is influenced.
Description
Technical field
The present invention relates to a kind of manufacturing methods of optical fiber.
Background technology
Preform can be used to the material preforms of drawing optical fiber, be the core former material of the quartzy series fibre of manufacture
Material.In preform drawing optical fiber, need one end of auxiliary rod connection preform to assist drawing optical fiber.Tradition
Auxiliary rod connection method be fixed on one end of preform by welding.But auxiliary rod and preform
For weld there may be internal stress, the hot melt high temperature heated in preform journey can accelerate internal stresses release, cause optical fiber
Prefabricated rods and auxiliary rod, which glance off, to be even broken.
Invention content
To solve the deficiencies in the prior art, the manufacturing method that the present invention provides a kind of without welding the optical fiber of auxiliary rod.
In order to realize that above-mentioned target, the present invention adopt the following technical scheme that：
A kind of manufacturing method of optical fiber, includes the following steps：
1) preform and auxiliary rod are linked together；
2) preform after connection is subjected to wire-drawing operation；
3) coating solidification is carried out to optical fiber；
Wherein, step 1) is attached by preform and auxiliary rod attachment device；
Preform and auxiliary rod attachment device, including：For install the auxiliary rod link of auxiliary rod, adjustable shelf,
For adjust adjustable shelf relative to the pole length adjusting part of auxiliary rod link relative position, from sandwich preform
Two movable jaws, two clamping jaw arms, spring and conical ring set；Movable jaw is fixed to clamping jaw arm；Clamping jaw arm is slidingly attached to
Adjustable shelf；Conical ring set is socketed in the periphery of clamping jaw arm；Conical ring set is formed with the inclined-plane coordinated with clamping jaw arm；Spring applies conical ring set
Add the active force for making conical ring set two clamping jaw arms of driving be moved to direction close to each other；Pole length adjusting part connects adjustable shelf
With auxiliary rod link；Pole length adjusting part includes casing and bolt；Casing is formed with the internal thread coordinated with bolt；Casing
It is fixed to adjustable shelf；Auxiliary rod link is formed with the mounting plate through-hole passed through for the bar portion of bolt；Bolt is logical across mounting plate
It installs to auxiliary rod link in hole；Bolt is connected through a screw thread with casing.
Further, preform and auxiliary rod attachment device include multiple pole length adjusting parts；Multiple pole lengths
Adjusting part is uniformly distributed around the center line of auxiliary rod link.
Further, preform and auxiliary rod attachment device include 4 pole length adjusting parts.
Further, auxiliary rod link includes connecting pole and mounting plate；Connecting pole is fixed to mounting plate；Connecting pole is formed
There is the mounting hole being inserted into for auxiliary rod；Mounting plate forms mounting plate through-hole.
Further, preform and auxiliary rod attachment device further include fastening bolt；Fastening bolt passes through auxiliary rod
And connecting pole, auxiliary rod is fixed to connecting pole.
Further, the hole depth direction of mounting plate through-hole is parallel with the hole depth direction of mounting hole.
Further, adjustable shelf is formed with chute hole；One end of two clamping jaw arms is stretched to from the both ends of chute hole respectively
It can slide in chute hole and in chute hole.
Further, preform and auxiliary rod attachment device include multiple springs；The number of spring and pole length tune
The number for saving component is identical.
Further, auxiliary rod link and adjustable shelf are each formed with the positioning column of the position for fixed spring.
Further, the manufacturing method of optical fiber is further comprising the steps of：
Spring force is overcome to move conical ring set to open movable jaw；
Spring band mantle ring set moves to drive movable jaw grip optical fiber prefabricated rods；
Auxiliary rod is fixed to the auxiliary rod link；
Preform is installed to optical fiber hot melting furnace；
The bolt of swingle length adjustment component keeps preform vertical to the length of adjusting rod length adjustment component.
The invention has the beneficial effects that can ensure that preform does not occur partially by adjusting rod length adjustment component
It moves.Without by preform and auxiliary rod welding avoid prior welding mode it is heated after release internal stress cause deflection or disconnected
The problem of splitting avoids causing deflection due to stress release, finally influences optical fiber processing.
Description of the drawings
Fig. 1 is a kind of flow chart of the manufacturing method of optical fiber of the present invention；
Fig. 2 is the schematic diagram of the preform of the manufacturing method of optical fiber and auxiliary rod attachment device in Fig. 1；
Fig. 3 is the bottom view of the preform and the adjustable shelf of auxiliary rod attachment device in Fig. 2；
Fig. 4 is the sectional view of the preform and the adjustable shelf of auxiliary rod attachment device in Fig. 2；
Fig. 5 is the vertical view of the preform and the auxiliary rod link of auxiliary rod attachment device in Fig. 2.
Preform and auxiliary rod attachment device 100, auxiliary rod link 10, connecting pole 11, mounting plate 12, mounting plate
Through-hole 13, mounting hole 111, adjustable shelf 20, chute hole 21, pole length adjusting part 30, casing 31, bolt 32, movable jaw 40,
Clamping jaw arm 50, spring 60, conical ring set 70, inclined-plane 71, fastening bolt 80, positioning column 90.
Specific implementation mode
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
As shown in Figures 1 to 5, a kind of manufacturing method of optical fiber, includes the following steps：
1) preform and auxiliary rod are linked together；
2) preform after connection is subjected to wire-drawing operation；
3) coating solidification is carried out to optical fiber；
Wherein, step 1) is attached by preform and auxiliary rod attachment device；
As shown in Figures 1 to 5, it is the preform and auxiliary rod attachment device of the manufacturing method of the above-mentioned optical fiber of application
100。
Preform and auxiliary rod attachment device 100, including, auxiliary rod link 10, adjustable shelf 20, pole length are adjusted
The movable jaw 40, two of component 30, two clamping jaw arm 50, spring 60 and conical ring set 70.Auxiliary rod link 10 is auxiliary for installing
Help stick.Pole length adjusting part 30 is for adjusting adjustable shelf 20 relative to 10 relative position of auxiliary rod link.Rotate pole length
The length that the bolt 32 of adjusting part 30 is capable of adjusting rod length adjustment component 30 makes preform be in vertical state.Two
Movable jaw 40 is from sandwich preform.
As a kind of specific embodiment, movable jaw 40 is fixed to clamping jaw arm 50.Clamping jaw arm 50 is slidingly attached to live
Moving frame 20.Conical ring set 70 is socketed in the periphery of clamping jaw arm 50.Pole length adjusting part 30 connects adjustable shelf 20 and is connected with auxiliary rod
Frame 10.Pole length adjusting part 30 includes casing 31 and bolt 32.Casing 31 is formed with the internal thread coordinated with bolt 32.Casing
31 are fixed to adjustable shelf 20.Auxiliary rod link 10 is formed with the mounting plate through-hole 13 passed through for the bar portion of bolt 32.Bolt 32
Across the installation of mounting plate through-hole 13 to auxiliary rod link 10.Bolt 32 is connected through a screw thread with casing 31.Conical ring set 70 is formed
There is the inclined-plane 71 coordinated with clamping jaw arm 50.Spring 60, which applies conical ring set 70, makes 70 two clamping jaw arms 50 of driving of conical ring set to mutual
The active force of close direction movement.
Specifically, spring 60 applies the pressure for driving conical ring set 70 to move downward to conical ring set 70.Conical ring set 70 is downwards
Inclined-plane 71 is driven to move downward in motion process, inclined-plane 71 pushes the two clamping jaw arms 50 coordinated with inclined-plane 71 to close to each other
Direction moves.The 40 grip optical fiber prefabricated rods of movable jaw for making to be fixed on clamping jaw arm 50 with this.When needing to unload preform
When, apply the power for overcoming 60 pressure of spring upwards to conical ring set 70 manually, conical ring set 70 is driven to move upwards to drive inclined-plane
71 move upwards.Inclined-plane 71, which is progressively smaller until the motive force of clamping jaw arm 50, is detached from clamping jaw arm 50.Two clamping jaw arms 50 are certainly
It is moved in the direction away from each other under the action of body screen resilience, to drive movable jaw 40 to be detached from preform.It is unloaded with this
Lower preform.
As a preferred embodiment, adjustable shelf 20 is formed with chute hole 21.One end difference of two clamping jaw arms 50
It stretches in chute hole 21 and can be slided in chute hole 21 from the both ends of chute hole 21.
As a preferred embodiment, preform includes multiple pole length tune with auxiliary rod attachment device 100
Save component 30.Multiple pole length adjusting parts 30 are uniformly distributed around the center line of auxiliary rod link 10, can accurately adjust
Position of the adjustable shelf 20 relative to auxiliary rod link 10.
As a preferred embodiment, preform includes that 4 pole lengths are adjusted with auxiliary rod attachment device 100
Component 30.
As a preferred embodiment, auxiliary rod link 10 includes connecting pole 11 and mounting plate 12.Connecting pole 11
It is fixed to mounting plate 12.Connecting pole 11 is formed with the mounting hole 111 being inserted into for auxiliary rod.Mounting plate 12 forms mounting plate through-hole 13
It is passed through for the bar portion of bolt.
As a preferred embodiment, preform and auxiliary rod attachment device 100 further include fastening bolt 80.
Fastening bolt 80 passes through auxiliary rod and connecting pole 11, and auxiliary rod is fixed to connecting pole 11.
As a preferred embodiment, the hole depth direction of mounting plate through-hole 13 and the hole depth direction of mounting hole 111 are flat
Row.
As a preferred embodiment, preform includes multiple springs 60 with auxiliary rod attachment device 100.Bullet
The number of spring 60 is identical as the number of pole length adjusting part 30.
As a preferred embodiment, auxiliary rod link 10 and adjustable shelf 20 are each formed with for fixed spring 60
Position positioning column 90.
It is sayed based on above-mentioned, the manufacturing method of optical fiber is further comprising the steps of：
Clamping jaw arm 50 overcomes 60 elastic force of spring movement conical ring set 70 to open movable jaw 40；
Spring 60 drives 70 movement of conical ring set to drive the movable jaw 40 on clamping jaw arm 50 to direction close to each other
Movement is with grip optical fiber prefabricated rods；
Auxiliary rod is fixed to auxiliary rod link 10；
Preform is installed to optical fiber hot melting furnace；
The bolt 32 of swingle length adjustment component 30 makes optical fiber prefabricating to the length of adjusting rod length adjustment component 30
Stick is vertical.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution is all fallen in protection scope of the present invention.
Claims (10)
1. a kind of manufacturing method of optical fiber, which is characterized in that include the following steps：
1) preform and auxiliary rod are linked together；
2) preform after connection is subjected to wire-drawing operation；
3) coating solidification is carried out to optical fiber；
Wherein, step 1) is attached by preform and auxiliary rod attachment device；
The preform and auxiliary rod attachment device, including：For install the auxiliary rod link of auxiliary rod, adjustable shelf,
For adjust the adjustable shelf relative to the pole length adjusting part of the auxiliary rod link relative position, from sandwich light
Two movable jaws, two clamping jaw arms, spring and the conical ring set of fine prefabricated rods；The movable jaw is fixed to the clamping jaw arm；
The clamping jaw arm is slidingly attached to the adjustable shelf；The conical ring set is socketed in the periphery of the clamping jaw arm；The cone sleeve-shaped
The inclined-plane that clamping jaw arm described in Cheng Youyu coordinates；The spring, which applies conical ring set, makes the conical ring set drive described two folders
The active force that pawl arm is moved to direction close to each other；The pole length adjusting part connects the adjustable shelf and the auxiliary rod
Link；The pole length adjusting part includes casing and bolt；Described sleeve pipe is formed with the internal thread coordinated with the bolt；
Described sleeve pipe is fixed to the adjustable shelf；It is logical that the auxiliary rod link is formed with the mounting plate passed through for the bar portion of the bolt
Hole；The bolt is installed across the mounting plate through-hole to the auxiliary rod link；The bolt passes through spiral shell with described sleeve pipe
Line connects.
2. the manufacturing method of optical fiber according to claim 1, which is characterized in that
The preform and auxiliary rod attachment device include multiple pole length adjusting parts；Multiple pole length tune
Section component is uniformly distributed around the center line of the auxiliary rod link.
3. the manufacturing method of optical fiber according to claim 1, which is characterized in that
The preform includes 4 pole length adjusting parts with auxiliary rod attachment device.
4. the manufacturing method of optical fiber according to claim 1, which is characterized in that
The auxiliary rod link includes connecting pole and mounting plate；The connecting pole is fixed to the mounting plate；The connecting pole
It is formed with the mounting hole being inserted into for auxiliary rod；The mounting plate forms the mounting plate through-hole.
5. the manufacturing method of optical fiber according to claim 4, which is characterized in that
The preform and auxiliary rod attachment device further include fastening bolt；The fastening bolt pass through the auxiliary rod and
The auxiliary rod is fixed to the connecting pole by the connecting pole.
6. the manufacturing method of optical fiber according to claim 4, which is characterized in that
The hole depth direction of the mounting plate through-hole is parallel with the hole depth direction of the mounting hole.
7. the manufacturing method of optical fiber according to claim 1, which is characterized in that
The adjustable shelf is formed with chute hole；One end of two clamping jaw arms stretches to institute from the both ends of the chute hole respectively
It states in chute hole and can be slided in the chute hole.
8. the manufacturing method of optical fiber according to claim 1, which is characterized in that
The preform and auxiliary rod attachment device include multiple springs；The number of the spring and the pole length
The number of adjusting part is identical.
9. the manufacturing method of optical fiber according to claim 1, which is characterized in that
The auxiliary rod link and the adjustable shelf are each formed with the positioning column of the position for fixing the spring.
10. the manufacturing method of optical fiber according to claim 1, which is characterized in that further comprising the steps of：
Spring force is overcome to move conical ring set to open movable jaw；
Spring band mantle ring set moves to drive movable jaw grip optical fiber prefabricated rods；
Auxiliary rod is fixed to the auxiliary rod link；
Preform is installed to optical fiber hot melting furnace；
The bolt of swingle length adjustment component keeps preform vertical to the length of adjusting rod length adjustment component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810833949.8A CN108640502B (en) | 2018-07-26 | 2018-07-26 | Method for manufacturing optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810833949.8A CN108640502B (en) | 2018-07-26 | 2018-07-26 | Method for manufacturing optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108640502A true CN108640502A (en) | 2018-10-12 |
| CN108640502B CN108640502B (en) | 2020-12-22 |
Family
ID=63760223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810833949.8A Active CN108640502B (en) | 2018-07-26 | 2018-07-26 | Method for manufacturing optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108640502B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333571A (en) * | 2019-07-01 | 2019-10-15 | 华中科技大学鄂州工业技术研究院 | Double negative cruvature antiresonance hollow-core fibers and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6138481A (en) * | 1998-01-27 | 2000-10-31 | Sumitomo Electric Industries, Inc. | Glassrod elongation heating furnance having double bellows |
| US20040206128A1 (en) * | 2001-05-30 | 2004-10-21 | Anna Zilnyk | Method of manufacturing glass optical fibre preforms and optical fibres |
| JP2008178956A (en) * | 2007-01-25 | 2008-08-07 | Sumitomo Electric Ind Ltd | Griping device and heating device of glass element |
| CN102206040A (en) * | 2011-03-04 | 2011-10-05 | 中天科技精密材料有限公司 | Horizontal extension device of optical fiber preform |
| CN106007353A (en) * | 2016-05-19 | 2016-10-12 | 江苏亨通光导新材料有限公司 | Fixing device of optical fiber preform and fixing method of fixing device |
| CN205670076U (en) * | 2015-11-09 | 2016-11-02 | 江苏奥维信亨通光学科技有限公司 | A kind of optical-fiber prefabricated-bar clamping device |
| CN106242262A (en) * | 2016-07-14 | 2016-12-21 | 浙江富通光纤技术有限公司 | The preparation method of doped fiber surrounding layer |
| CN106746593A (en) * | 2016-12-08 | 2017-05-31 | 长飞光纤光缆股份有限公司 | A kind of spin fiber preparation method and equipment |
-
2018
- 2018-07-26 CN CN201810833949.8A patent/CN108640502B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6138481A (en) * | 1998-01-27 | 2000-10-31 | Sumitomo Electric Industries, Inc. | Glassrod elongation heating furnance having double bellows |
| US20040206128A1 (en) * | 2001-05-30 | 2004-10-21 | Anna Zilnyk | Method of manufacturing glass optical fibre preforms and optical fibres |
| JP2008178956A (en) * | 2007-01-25 | 2008-08-07 | Sumitomo Electric Ind Ltd | Griping device and heating device of glass element |
| CN102206040A (en) * | 2011-03-04 | 2011-10-05 | 中天科技精密材料有限公司 | Horizontal extension device of optical fiber preform |
| CN205670076U (en) * | 2015-11-09 | 2016-11-02 | 江苏奥维信亨通光学科技有限公司 | A kind of optical-fiber prefabricated-bar clamping device |
| CN106007353A (en) * | 2016-05-19 | 2016-10-12 | 江苏亨通光导新材料有限公司 | Fixing device of optical fiber preform and fixing method of fixing device |
| CN106242262A (en) * | 2016-07-14 | 2016-12-21 | 浙江富通光纤技术有限公司 | The preparation method of doped fiber surrounding layer |
| CN106746593A (en) * | 2016-12-08 | 2017-05-31 | 长飞光纤光缆股份有限公司 | A kind of spin fiber preparation method and equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333571A (en) * | 2019-07-01 | 2019-10-15 | 华中科技大学鄂州工业技术研究院 | Double negative cruvature antiresonance hollow-core fibers and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108640502B (en) | 2020-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108640502A (en) | The manufacturing method of optical fiber | |
| JP2005225749A (en) | Method and device for drawing optical fiber preform | |
| CN110193537A (en) | A kind of liftable bending machine and its bending method | |
| CN102875007A (en) | Continuous melting furnace for producing quartz glass bar and manufacture technology | |
| CN112620536A (en) | Titanium alloy wire pier head preparation device and method | |
| JP6952369B2 (en) | Thermoplastic plate bending method and processing jig | |
| CN104741292A (en) | Preparation method of micrometer-scale dispensing tungsten needle | |
| CN109622712A (en) | A kind of thrust chamber forming method for rocket engine | |
| CN208131888U (en) | The limit of silk machine ring heater and timing push-off device are rolled in three rollings | |
| CN115784595A (en) | Thermal breaking-off separation device and method for glass cutting | |
| CN207204905U (en) | Apparatus for correcting | |
| CN208773620U (en) | A kind of robot device for cell-phone cover production | |
| CN111496111B (en) | Reverse-pulling type pipe expander and reverse-pulling type pipe expanding method | |
| CN209029328U (en) | Material device is removed in a kind of filament lamp sealing-in | |
| CN204524143U (en) | Forging blank erection device | |
| CN209113096U (en) | LED lamp machine for producing tool hand | |
| CN203034142U (en) | Solid-liquid interface movement tracking device for polycrystalline ingot furnace | |
| CN203936524U (en) | Hold down gag and there is the optical device automatic coupling bonding machine of this hold down gag | |
| CN208438741U (en) | Buffer-type hot melt structure | |
| CN214053500U (en) | Titanium alloy silk material pier nose preparation facilities | |
| CN206882818U (en) | A kind of camera lens vertical pulling clamp system | |
| CN220605496U (en) | MPP cable pipe with heat tracing function | |
| CN212190987U (en) | Reverse-pulling type pipe expander | |
| CN216191879U (en) | Clamping jaw device for glass bottle production | |
| US3111550A (en) | Apparatus for melting heat softenable materials |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |