CN105500662A - Optical loose pipe shrinkage compensation device for optical fiber secondary plastic cover - Google Patents
Optical loose pipe shrinkage compensation device for optical fiber secondary plastic cover Download PDFInfo
- Publication number
- CN105500662A CN105500662A CN201511002027.5A CN201511002027A CN105500662A CN 105500662 A CN105500662 A CN 105500662A CN 201511002027 A CN201511002027 A CN 201511002027A CN 105500662 A CN105500662 A CN 105500662A
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- CN
- China
- Prior art keywords
- wheel
- loose tube
- optical cable
- lower pressure
- return pulley
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/267—Intermediate treatments, e.g. relaxation, annealing or decompression step for the melt
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses an optical loose pipe shrinkage compensation device for an optical fiber secondary plastic cover. The device comprises a frame, a driving mechanism, a linear speed synchronous transmission mechanism, a pressing wheel mechanism and an up-down hoisting mechanism; the pressing wheel mechanism includes at least one lower pressing wheel and at least one bottom wheel; the lower pressing wheels are as many as the bottom wheels; the lower pressing wheels and the bottom wheels are driven through the linear speed synchronous transmission mechanism, so that the linear speeds V1 of contact points of the lower pressing wheels and the bottom wheels with a loose pipe are the same; and the linear speeds V1 of the two are quicker than the main traction speed V2 of the optical cable loose pipe. As the device is provided with the lower pressing wheels and the bottom wheels with the same linear speeds, and the linear speeds are higher than the traction speed of an optical cable, the device uses a traction mode for towing the loose pipe to neutralize and counteract the shrinkage rate of the loose pipe to a certain extent,the stability of remaining length of the optical fiber in the loose pipe is guaranteed, and the production quality and the production speed of the optical cable are improved.
Description
Technical field
The present invention relates to a kind of optical fiber secondary and mould the optical cable loose tube shrinkage compensating device applied mechanically.
Background technology
Fiber secondary coating technique selects suitable macromolecular material, adopt extrusion process, under rational process conditions, a Loose tube suitable with fiber lengths is put to optical fiber, because Loose tube has shrinkage, shaping Loose tube only fill perhaps casing shrink at one more among a small circle, traditional handicraft only can in the contraction of the less degree of control of material of lower speed and restriction to reach requirement, but material that is higher in speed of production and larger retractility, particularly when high-speed production exempts from ointment dry type environment-protection casing pipe, because now dry sleeve shrinkage is larger, the shrinkage factor of Loose tube cannot control in rational scope by traditional mode of production mode, thus affect the quality of production and the production efficiency of Loose tube.
Summary of the invention
Technical problem to be solved by this invention is that the deficiency existed for above-mentioned prior art provides a kind of shrinkage factor that can control Loose tube, and what ensure the optical cable loose tube that optical fiber excess length is stable presses draw-gear.
The technical solution adopted in the present invention is: optical cable loose tube shrinkage compensating device, it is characterized in that: comprise frame, the driving mechanism be installed in frame, linear speed synchronous drive mechanism, pressing wheel mechanism, up and down hoisting mechanism, described driving mechanism drives linear speed synchronous drive mechanism, described pressing wheel mechanism comprises at least one lower pressure wheel, at least one return pulley, the number of described lower pressure wheel is equal with the number of return pulley, described lower pressure wheel and return pulley are driven by linear speed synchronous drive mechanism, and lower pressure wheel and return pulley are connected with Loose tube the linear velocity V of contact
1identical, and both linear velocity V
1be greater than the main hauling speed V of optical cable loose tube
2, upper and lower hoisting mechanism is installed in frame, for regulating the spacing between lower pressure wheel and return pulley.
By technique scheme, described pressing wheel mechanism also comprises upper bracket and lower carriage, and described lower pressure wheel is installed on upper bracket, and described return pulley is installed on lower carriage, and one end of described upper and lower hoisting mechanism is connected with frame, and the other end is connected with upper bracket.
By technique scheme, frame is also provided with precision gap position adjusting mechanism, for the spacing between fine adjustment lower pressure wheel and return pulley, described precision gap position adjusting mechanism comprises the gripper shoe be connected mutually with frame, the screw rod arranged by screw thread with gripper shoe, the baffle plate that is fixedly connected with in screw rod lower end, and described baffle plate is positioned at the below of the upper bracket of pressing wheel mechanism.
By technique scheme, described upper and lower hoisting mechanism comprises the lift cylinder be installed in frame, and the tailpiece of the piston rod of described lift cylinder is connected with the upper bracket of pressing wheel mechanism.
By technique scheme, described linear speed synchronous drive mechanism is double-faced toothed ribbon line speed synchronous drive mechanism.
By technique scheme, described lower pressure wheel is two, and be divided into front lower pressure wheel and rear lower pressure wheel, described return pulley is two, is divided into front return pulley and rear return pulley, forms four synchronizing wheel optical cable loose tube shrinkage compensating devices.
By technique scheme, described linear speed synchronous drive mechanism comprise be connected with drive motors output shaft driving synchronizing wheel, be symmetricly set on drive to tighten up on two of both sides below synchronizing wheel take turns, symmetrically arranged two upper driving synchronizing wheels, symmetrically arranged two underdrive synchronizing wheels, symmetrically arranged tighten up for twice take turns, Timing Belt, described Timing Belt through driving after synchronizing wheel, both sides respectively through on to tighten up outside wheel inner side, upper driving synchronizing wheel, inside underdrive synchronizing wheel, under tighten up the outer rear flank of wheel and tighten; Described two upper driving synchronizing wheels drive front lower pressure wheel and rear lower pressure wheel respectively, and described two underdrive synchronizing wheels drive front return pulley and rear return pulley respectively.
By technique scheme, V
1-V
2/ V
2=2% ~ 5%.
By technique scheme, the wheel face V-type shape of described lower pressure wheel and return pulley.
By technique scheme, be configured with water receiving tank in the below of Loose tube, frame is also configured with safety device.
The beneficial effect of patent of the present invention is: 1, the present invention is by arranging the consistent lower pressure wheel of linear velocity and return pulley, and its linear velocity is higher than the hauling speed of optical cable, this device is made to lead with a kind of the mode drag spring thimble dragged, with the shrinkage factor offsetting Loose tube in a certain degree, thus ensure optical fiber remaining long stability in Loose tube, improve the quality of production and the speed of production of optical cable; 2, the present invention is by arranging four contact rollers, form upper and lower two groups and press wheel, Loose tube and contact point of the present invention are become two and compresses point, when making each point not increase compacting degree, add exponentially with superposition and lead drag, reliability greatly improves, can under the technological requirement such as circularity, wall thickness, physical dimension meeting sleeve pipe, for high speed steady production optical cable loose tube product provides possibility.3, by arranging precision gap position adjusting mechanism, spacing between rational adjustment lower pressure wheel and return pulley, avoid both contact too tightly with Loose tube or excessively loose, contact tension, easily make Loose tube extruding optical fiber, affect the performance of optical fiber, contacted pine, easily skidding when drawing Loose tube, affecting the operating efficiency of this device, thus, reliability of the present invention is further increased by arranging this mechanism.4, the wheel face of lower pressure wheel and return pulley is arranged to concave shape, occurs when preventing it from contacting with Loose tube further skidding, improve Practical Performance of the present invention.
Accompanying drawing explanation
Fig. 1 is three-dimensional structure diagram of the present invention.
Fig. 2 is the structure chart of pressing wheel mechanism in the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
As Fig. 1, shown in 2, present embodiments provide a kind of optical fiber secondary and mould the optical cable loose tube shrinkage compensating device applied mechanically, comprise frame 17, be installed in the driving mechanism in frame, linear speed synchronous drive mechanism, pressing wheel mechanism, upper and lower hoisting mechanism, described driving mechanism comprises drive motors 1, pressing wheel mechanism comprises upper bracket 12, be installed in the lower carriage 10 in frame, upper bracket 12 is at least provided with a lower pressure wheel, lower carriage is at least provided with a return pulley, the number of described lower pressure wheel is equal with the number of return pulley, described linear speed synchronous drive mechanism is distributed on upper bracket 12 and lower carriage 10, and arrange mutually with the output shaft of drive motors 1, described lower pressure wheel and return pulley are driven by linear speed synchronous drive mechanism, lower pressure wheel and return pulley are connected with Loose tube the linear velocity V of contact
1identical, and both linear velocity V
1be greater than the main hauling speed V of optical cable loose tube 8
2, described upper and lower hoisting mechanism comprises the lift cylinder 15 be installed in frame 17, the tailpiece of the piston rod of described lift cylinder 15 is connected with upper bracket 12, by controlling the flexible of lifting 15 cylinder, thus controlling the spacing between upper bracket 12 and lower carriage 10, regulating the spacing of lower pressure wheel and return pulley further.Wherein, drive motors 1 can be servomotor, described electric control gear is for controlling the rotating speed of drive motors, thus the difference of lower pressure wheel and return pulley linear velocity and Loose tube hauling speed is controlled by linear speed synchronous drive mechanism, both formation are led drag, comparatively the Nature that opposing Loose tube produces because of self-characteristic shrinks, and avoids it to form extruding to optical fiber, thus ensures the stability of excess fiber length.Because Loose tube of the present invention carries out leading dragging before incomplete crystallization, all there is cooling water bath device both sides of the present invention, therefore, are configured with water receiving tank 18 in the below of Loose tube, conveniently catch the cooling water on Loose tube.
In the present embodiment, in order to the spacing between fine adjustment lower pressure wheel and return pulley, frame is also provided with precision gap position adjusting mechanism, prevents too tight or too loose by Loose tube pressure of two pinch rollers.Described precision gap position adjusting mechanism comprises the gripper shoe 14 be connected mutually with frame, the screw rod 16 arranged by screw thread with gripper shoe 14, the baffle plate 13 that is fixedly connected with in the lower end of screw rod 16, and described baffle plate 13 is positioned at the below of upper bracket 12.Operationally, first screw rod 16 is carried out accurate adjustment, baffle plate 13 is made to be positioned at the position of setting, the piston rod controlling lift cylinder 15 again stretches out, thus drive upper bracket 12 and move downward with lower pressure wheel, after upper bracket 12 props up baffle plate 13, show that this position is the optimum position regulating lower pressure wheel and return pulley spacing, thus two pinch rollers are controlled in the reasonable scope the thrust of Loose tube 8.
In the present embodiment, described lower pressure wheel is two, and be divided into front lower pressure wheel 17 and rear lower pressure wheel 6, described return pulley is two, is divided into front return pulley 11 and rear return pulley 7, forms four synchronizing wheel optical cable loose tube shrinkage compensating devices.Described linear speed synchronous drive mechanism is double-faced toothed ribbon line speed synchronous drive mechanism, it comprises the driving synchronizing wheel 2 be connected with drive motors output shaft, be symmetricly set on to drive on two of both sides below synchronizing wheel and tighten up wheel 4, symmetrically arranged two upper driving synchronizing wheels 5, symmetrically arranged two underdrive synchronizing wheels, tighten up wheel 9 symmetrically arranged twice, Timing Belt 3, engaging tooth is equipped with on the two sides of Timing Belt 3, each synchronizing wheel periphery is equipped with the tooth be meshed with Timing Belt 3, and each synchronizing wheel is all supported by corresponding axle, described Timing Belt 3 is after driving synchronizing wheel 2, both sides respectively through on tighten up inside wheel 4, outside upper driving synchronizing wheel 5, inside underdrive synchronizing wheel, under tighten up outside wheel 9, described two upper driving synchronizing wheels 5 drive front lower pressure wheel 17 and rear lower pressure wheel 6 respectively, and described two underdrive synchronizing wheels drive front return pulley 11 and rear return pulley 7 respectively.
Loose tube in the present embodiment is dry type Loose tube, carried out leading dragging before the incomplete crystallization of Loose tube, thus reach the object of the expansion and contraction controlling Loose tube largely, namely by arranging the consistent lower pressure wheel of linear velocity and return pulley, and its linear velocity is higher than the hauling speed of optical cable, in the present embodiment, preferably control V
1-V
2/ V
2=2% ~ 5%, with the shrinkage factor offsetting Loose tube in a certain degree, thus ensure optical fiber remaining long stability in Loose tube, fill hydrogel formula Loose tube to meet high-speed production and substitute with air the production requirement that extend oil creme makes full-dry optical cable loose tube.
Claims (10)
1. an optical fiber secondary moulds the optical cable loose tube shrinkage compensating device applied mechanically, it is characterized in that: comprise frame, the driving mechanism be installed in frame, linear speed synchronous drive mechanism, pressing wheel mechanism, up and down hoisting mechanism, described driving mechanism drives linear speed synchronous drive mechanism, described pressing wheel mechanism comprises at least one lower pressure wheel, at least one return pulley, the number of described lower pressure wheel is equal with the number of return pulley, described lower pressure wheel and return pulley are driven by linear speed synchronous drive mechanism, and lower pressure wheel and return pulley are connected with Loose tube the linear velocity V of contact
1identical, and both linear velocity V
1be greater than the main hauling speed V of optical cable loose tube
2, upper and lower hoisting mechanism is installed in frame, for regulating the spacing between lower pressure wheel and return pulley.
2. optical cable loose tube shrinkage compensating device according to claim 1, it is characterized in that, described pressing wheel mechanism also comprises upper bracket and lower carriage, described lower pressure wheel is installed on upper bracket, described return pulley is installed on lower carriage, one end of described upper and lower hoisting mechanism is connected with frame, and the other end is connected with upper bracket.
3. optical cable loose tube shrinkage compensating device according to claim 1 and 2, it is characterized in that, frame is also provided with precision gap position adjusting mechanism, for the spacing between fine adjustment lower pressure wheel and return pulley, described precision gap position adjusting mechanism comprises the gripper shoe be connected mutually with frame, the screw rod arranged by screw thread with gripper shoe, the baffle plate that is fixedly connected with in screw rod lower end, and described baffle plate is positioned at the below of the upper bracket of pressing wheel mechanism.
4. optical cable loose tube shrinkage compensating device according to claim 1 and 2, is characterized in that, described upper and lower hoisting mechanism comprises the lift cylinder be installed in frame, and the tailpiece of the piston rod of described lift cylinder is connected with the upper bracket of pressing wheel mechanism.
5. optical cable loose tube shrinkage compensating device according to claim 1 and 2, is characterized in that, described linear speed synchronous drive mechanism is double-faced toothed ribbon line speed synchronous drive mechanism.
6. optical cable loose tube shrinkage compensating device according to claim 1 and 2, is characterized in that, described lower pressure wheel is two, be divided into front lower pressure wheel and rear lower pressure wheel, described return pulley is two, is divided into front return pulley and rear return pulley, forms four synchronizing wheel optical cable loose tube shrinkage compensating devices.
7. optical cable loose tube shrinkage compensating device according to claim 6, it is characterized in that, described linear speed synchronous drive mechanism comprise be connected with drive motors output shaft driving synchronizing wheel, be symmetricly set on drive to tighten up on two of both sides below synchronizing wheel take turns, symmetrically arranged two upper driving synchronizing wheels, symmetrically arranged two underdrive synchronizing wheels, symmetrically arranged tighten up for twice take turns, Timing Belt, described Timing Belt through driving after synchronizing wheel, both sides respectively through on to tighten up outside wheel inner side, upper driving synchronizing wheel, inside underdrive synchronizing wheel, under tighten up the outer rear flank of wheel and tighten; Described two upper driving synchronizing wheels drive front lower pressure wheel and rear lower pressure wheel respectively, and described two underdrive synchronizing wheels drive front return pulley and rear return pulley respectively.
8. optical cable loose tube shrinkage compensating device according to claim 1 and 2, is characterized in that, V
1-V
2/ V
2=2% ~ 5%.
9. optical cable loose tube shrinkage compensating device according to claim 1 and 2, is characterized in that, the wheel face of described lower pressure wheel and return pulley is V-type shape.
10. optical cable loose tube shrinkage compensating device according to claim 1 and 2, is characterized in that, is configured with water receiving tank in the below of Loose tube, and the pressing wheel mechanism periphery in frame is configured with safety device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002027.5A CN105500662B (en) | 2015-12-29 | 2015-12-29 | A kind of optical cable loose tube shrinkage compensating device of optical fiber secondary mould set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002027.5A CN105500662B (en) | 2015-12-29 | 2015-12-29 | A kind of optical cable loose tube shrinkage compensating device of optical fiber secondary mould set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105500662A true CN105500662A (en) | 2016-04-20 |
| CN105500662B CN105500662B (en) | 2018-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511002027.5A Active CN105500662B (en) | 2015-12-29 | 2015-12-29 | A kind of optical cable loose tube shrinkage compensating device of optical fiber secondary mould set |
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|---|---|
| CN (1) | CN105500662B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273338A (en) * | 2016-10-31 | 2017-01-04 | 珠海汉胜科技股份有限公司 | The production method of a kind of sleeve pipe and press formula traction apparatus |
| CN107186994A (en) * | 2017-06-09 | 2017-09-22 | 烽火通信科技股份有限公司 | A kind of extruding draw-gear of optical cable loose tube |
| CN111890671A (en) * | 2020-08-03 | 2020-11-06 | 上海千一科技股份有限公司 | Special traction device for high-speed optical fiber secondary coating production line |
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| CN1332858A (en) * | 1998-12-29 | 2002-01-23 | 皮雷利·卡维系统有限公司 | Method and apparatus for manufacturing optical fibre cable and cable so manufactured |
| CN102346286A (en) * | 2011-11-21 | 2012-02-08 | 江苏江扬电缆有限公司 | Manufacturing method of full-dry optical cable loose tube |
| CN103203854A (en) * | 2013-03-18 | 2013-07-17 | 江阴爱科森通信材料有限公司 | Secondary plastic coating technique by utilizing modified PP (polypropylene) material |
| CN104228040A (en) * | 2014-08-15 | 2014-12-24 | 汕头高新区奥星光通信设备有限公司 | Optical fiber loose tube production device and working principle thereof |
-
2015
- 2015-12-29 CN CN201511002027.5A patent/CN105500662B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH584664A5 (en) * | 1973-03-29 | 1977-02-15 | Int Standard Electric Corp | |
| CN1332858A (en) * | 1998-12-29 | 2002-01-23 | 皮雷利·卡维系统有限公司 | Method and apparatus for manufacturing optical fibre cable and cable so manufactured |
| CN102346286A (en) * | 2011-11-21 | 2012-02-08 | 江苏江扬电缆有限公司 | Manufacturing method of full-dry optical cable loose tube |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106273338A (en) * | 2016-10-31 | 2017-01-04 | 珠海汉胜科技股份有限公司 | The production method of a kind of sleeve pipe and press formula traction apparatus |
| CN106273338B (en) * | 2016-10-31 | 2019-03-19 | 珠海汉胜科技股份有限公司 | A kind of production method of casing and press formula traction device |
| CN107186994A (en) * | 2017-06-09 | 2017-09-22 | 烽火通信科技股份有限公司 | A kind of extruding draw-gear of optical cable loose tube |
| CN107186994B (en) * | 2017-06-09 | 2019-09-06 | 烽火通信科技股份有限公司 | A kind of extruding traction device of optical cable loose tube |
| CN111890671A (en) * | 2020-08-03 | 2020-11-06 | 上海千一科技股份有限公司 | Special traction device for high-speed optical fiber secondary coating production line |
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| Publication number | Publication date |
|---|---|
| CN105500662B (en) | 2018-03-20 |
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Effective date of registration: 20230825 Address after: 112007 Yaobao Industrial Park, Tieling County Industrial Park, Tieling City, Liaoning Province Patentee after: CHANGFEI OPTICAL FIBER AND CABLE SHENYANG Co.,Ltd. Patentee after: SHANTOU HIGH-TECH ZONE AOXING OPTICAL COMMUNICATION EQUIPMENT Co.,Ltd. Address before: 112007 Yaobao Industrial Park, Tieling County Industrial Park, Tieling City, Liaoning Province Patentee before: CHANGFEI OPTICAL FIBER AND CABLE SHENYANG Co.,Ltd. |
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