CN114955726B - Device and method for online detecting and adjusting loose tube optical fiber residual length - Google Patents
Device and method for online detecting and adjusting loose tube optical fiber residual length Download PDFInfo
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- CN114955726B CN114955726B CN202210588731.7A CN202210588731A CN114955726B CN 114955726 B CN114955726 B CN 114955726B CN 202210588731 A CN202210588731 A CN 202210588731A CN 114955726 B CN114955726 B CN 114955726B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H61/00—Applications of devices for metering predetermined lengths of running material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
- G01B5/04—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving
- G01B5/043—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness specially adapted for measuring length or width of objects while moving for measuring length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/32—Optical fibres or optical cables
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- General Physics & Mathematics (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
The application relates to the technical field of communication optical cable production, in particular to a device and a method for online detecting and adjusting the residual length of loose tube optical fibers. The device for adjusting the residual length of the loose tube optical fiber by online detection comprises: the device comprises a traction sleeve mechanism, a wire collecting mechanism, a control mechanism and a plurality of fiber releasing mechanisms. The fiber releasing mechanisms are used for releasing the optical fibers along the same direction, detecting and releasing the lengths of the corresponding optical fibers, and adjusting the tension of the optical fibers; the traction sleeve mechanism is arranged in the fiber outlet direction of the fiber releasing mechanism and is used for coating loose sleeves on the outer sides of all the optical fibers, dragging the loose sleeves with the optical fibers arranged inside, and adjusting the tension of the loose sleeves; the winding mechanism is used for winding the loose tube with the optical fiber arranged in and detecting the length of the wound loose tube; the control mechanism is used for adjusting the excess length of the optical fiber in the loose tube according to the length of each optical fiber and the length of the coated loose tube. The problems of high operation requirement, low efficiency, poor consistency and quality risk existing in the prior art that the surplus length is manually measured on the measuring table can be solved.
Description
Technical Field
The application relates to the technical field of communication optical cable production, in particular to a device and a method for online detecting and adjusting the residual length of loose tube optical fibers.
Background
In the optical cable production process, the loose tube process is more complicated than other processes, wherein the excess length of the optical fiber in the loose tube needs to be ensured within a normal range. The remainder is: the difference in optical fiber length relative to loose tube length is a thousandth of the ratio of loose tube length.
In the current loose tube production procedure, the optical fiber surplus length of the loose tube is detected by offline measurement, so that the manual operation is long in time consumption and low in efficiency, two people are required to operate simultaneously, and accuracy consistency is required to be kept. If the excess fiber length exceeds the range, the parameters of the equipment are manually adjusted to ensure that the excess fiber length reaches the acceptable range.
In addition, the loose tube working procedure does not detect the surplus length of the optical fiber of each loose tube and the state of the online surplus length is unknown, and only manual periodic spot check is adopted to check whether the surplus length of the optical fiber of the loose tube reaches the standard or not, so that the quality risk of omission is caused. In addition, the cut loose tubes with fixed length are manually measured on a measuring table, so that the operation requirements are high, the efficiency is low, the consistency is poor, and the quality risk exists.
Disclosure of Invention
Aiming at the defects existing in the prior art, the application aims to provide a device and a method for on-line detection and adjustment of the excess length of loose tube optical fibers, which can solve the problems of high operation requirement, low efficiency, poor consistency and quality risk existing in the prior art that the excess length is manually measured on a measuring table.
In order to achieve the above purpose, the application adopts the following technical scheme:
the application provides a device for online detecting and adjusting the excess length of loose tube optical fibers, which comprises:
a plurality of fiber releasing mechanisms for releasing the optical fibers in the same direction, detecting the lengths of the released corresponding optical fibers, and adjusting the tension of the optical fibers;
the traction sleeve mechanism is arranged in the fiber outlet direction of the fiber releasing mechanism and is used for coating loose sleeves on the outer sides of all the optical fibers, dragging the loose sleeves with the optical fibers arranged therein and adjusting the tension of the loose sleeves;
the winding mechanism is used for winding the loose tube with the optical fiber arranged in and detecting the length of the wound loose tube;
and the control mechanism is used for adjusting the excess length of the optical fiber in the loose tube according to the length of each optical fiber and the length of the coated loose tube.
In some alternatives, the fiber-releasing mechanism includes:
a fiber tray for winding and storing optical fibers;
a first detection assembly for detecting a length of the fiber paid out by the fiber tray;
and the first tensioning assembly is arranged between the fiber disc and the first detection assembly and is used for adjusting the tension of the optical fiber released by the fiber disc.
In some alternatives, the first tensioning assembly comprises:
a fixed guide wheel rotatably provided;
the dancer guide wheel is arranged at intervals with the fixed guide wheel;
and the tension adjusting piece is connected with the dancer guide wheel and is used for adjusting the distance between the dancer guide wheel and the fixed guide wheel so as to adjust the tension of the optical fiber on the fixed guide wheel and the dancer guide wheel after the dancer guide wheel is released from the fiber disc.
In some alternatives, the tensioning member comprises:
one end of the dancer swing rod is rotatably arranged, and the other end of the dancer swing rod is connected with the dancer guide wheel;
and the air cylinder is connected with the middle part of the oscillating bar of the dancer and used for stabilizing or adjusting the distance between the guide wheel of the dancer and the fixed guide wheel.
In some alternatives, the first detection component includes:
the meter guide wheel can be rotatably arranged and propped against the optical fiber, so that the optical fiber can be driven to rotate when moving;
the meter measuring detection sensor is used for detecting the rotation number of the meter measuring guide wheel so as to detect the length of the released optical fiber.
In some alternatives, the traction sheave mechanism includes:
the extruder is arranged in the fiber outlet direction of the fiber releasing mechanism and is used for coating loose tubes on the outer sides of all the optical fibers;
a traction wheel for drawing a loose tube of an optical fiber arranged in the extruder;
and the second tensioning assembly is arranged between the extruder and the traction wheel and is used for adjusting the tension of the loose tube.
In some alternatives, the wire take-up mechanism includes:
the third tensioning assembly is arranged in the direction of pulling out the loose tube of the optical fiber by the traction tube mechanism and is used for adjusting the tension of the loose tube;
and the second detection assembly is arranged between the traction sleeve mechanism and the third tensioning assembly and is used for detecting the length of the winding loose sleeve.
On the other hand, the application also provides a method for on-line detecting and adjusting the excess length of the loose tube optical fiber, which is implemented by using the device for on-line detecting and adjusting the excess length of the loose tube optical fiber, and comprises the following steps:
discharging a plurality of optical fibers, detecting the lengths of the optical fibers, and coating loose tubes on the outer sides of all the optical fibers;
coiling a loose tube with an optical fiber arranged in the loose tube, and detecting the length of the coiled loose tube;
and adjusting the tension of the optical fibers or the loose tube according to the length of each optical fiber and the length of the coated loose tube so as to adjust the residual length of the optical fibers in the loose tube.
In some alternatives, the adjusting the tension of the optical fiber or the loose tube according to the length of each optical fiber and the length of the coated loose tube to adjust the residual length of the optical fiber in the loose tube includes:
when the measured surplus length values of all the optical fibers are not in the set range, the tension of the loose tube is firstly adjusted, when the surplus length values are larger than the maximum value of the set range, the tension of the loose tube is increased, and when the surplus length values are smaller than the minimum value of the set range, the tension of the loose tube is reduced.
In some alternatives, the adjusting the tension of the optical fiber or the loose tube according to the length of each optical fiber and the length of the cladding loose tube to adjust the excess length of the optical fiber in the loose tube further comprises:
when the measured residual length value of a certain optical fiber is smaller than the minimum value of the set range, reducing the fiber releasing tension;
when the residual length value of a certain optical fiber is measured to be larger than the maximum value of the set range, the fiber-releasing tension is increased.
Compared with the prior art, the application has the advantages that: detecting the length of each optical fiber while respectively paying out the optical fibers through a plurality of fiber paying-out mechanisms, then dragging a sleeve mechanism to cover loose sleeves outside all the optical fibers, winding the loose sleeves with the optical fibers inside by a winding mechanism, and detecting the length of the wound loose sleeves; the control mechanism calculates the excess length in the loose tube according to the length of each optical fiber and the length of the coated loose tube, and controls the fiber releasing mechanism to adjust the tension of the optical fiber or controls the traction tube mechanism to adjust the tension of the loose tube according to the calculated result, so that the excess length of the optical fiber in the loose tube is finally adjusted to be kept in a set range. According to the scheme, the length of each optical fiber and the length of the winding loose tube are obtained in real time in an on-line monitoring mode, so that the surplus length is calculated, and the surplus length of the optical fiber in the loose tube is controlled in a set range by controlling and adjusting the tension of the optical fiber or the loose tube according to the surplus length through the control mechanism. The problems that the efficiency of measuring the residual length of the optical fiber in the loose tube after processing is low and errors are easy to occur in the prior art are avoided; and the device can be adjusted on line in time, and the yield is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a device for detecting and adjusting the excess length of loose tube optical fibers on line in an embodiment of the application;
fig. 2 is a schematic structural diagram of a fiber releasing mechanism according to an embodiment of the present application.
In the figure: 1. a fiber releasing mechanism; 11. a fiber tray; 12. a first tensioning assembly; 121. fixing a guide wheel; 122. a dancer guide wheel; 123. a tension adjusting member; 1231. swinging rod of dancer; 1232. a cylinder; 1233. an electrical proportional valve; 1234. an air pipe; 13. a first detection assembly; 131. a meter guide wheel; 132. a meter detection sensor; 2. a traction sleeve mechanism; 21. an extruder; 22. a second tensioning assembly; 23. a traction wheel; 3. a wire winding mechanism; 31. a third tensioning assembly; 32. a second detection assembly; 4. and a control mechanism.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Embodiments of the present application are described in further detail below with reference to the accompanying drawings.
As shown in FIG. 1, the application provides an on-line detection device for adjusting the excess length of loose tube optical fibers, which comprises: a traction sleeve mechanism 2, a take-up mechanism 3, a control mechanism 4 and a plurality of fiber releasing mechanisms 1.
The fiber releasing mechanisms 1 are used for releasing optical fibers along the same direction, detecting the length of the corresponding released optical fibers and adjusting the tension of the optical fibers; the traction sleeve mechanism 2 is arranged in the fiber outlet direction of the fiber releasing mechanism 1 and is used for coating loose sleeves on the outer sides of all the optical fibers, dragging the loose sleeves with the optical fibers arranged therein and adjusting the tension of the loose sleeves; the winding mechanism 3 is used for winding the loose tube with the optical fiber arranged in and detecting the length of the wound loose tube; the control mechanism 4 is used for adjusting the excess length of the optical fiber in the loose tube according to the length of each optical fiber and the length of the coated loose tube.
When the device is used, the plurality of fiber releasing mechanisms 1 respectively release a plurality of optical fibers, the lengths of the released optical fibers are detected at the same time, and the traction sleeve mechanism 2 coats loose sleeves on the outer sides of all the optical fibers; the winding mechanism 3 winds up the loose tube with the optical fiber arranged in and detects the length of the wound loose tube; the control mechanism 4 calculates the surplus length of each optical fiber in the loose tube according to the length of each optical fiber and the length of the coated loose tube, and when the surplus length does not meet the requirement, the control mechanism 1 is controlled to adjust the tension of the optical fiber, or the traction sleeve mechanism 2 is controlled to adjust the tension of the loose tube, so that the surplus length of the optical fiber in the loose tube is finally adjusted within a set range. According to the scheme, the length of each optical fiber and the length of the winding loose tube are obtained in real time in an on-line monitoring mode, so that the surplus length is calculated, and the tension of the optical fiber or the loose tube is controlled and regulated according to the surplus length through the control mechanism 4, so that the surplus length of the optical fiber in the loose tube is controlled within a set range. The problems that the efficiency of measuring the residual length of the optical fiber in the loose tube after processing is low and errors are easy to occur in the prior art are avoided; and the device can be adjusted on line in time, and the yield is improved.
In the embodiment, the fiber releasing mechanisms 1 are arranged transversely and longitudinally at intervals, and the optical fibers released by the fiber releasing mechanisms 1 are turned to the same direction through the guide wheels, so that the subsequent traction sleeve mechanism 2 is convenient to sleeve loose sleeves on the outer sides of all the optical fibers.
In this example, the control mechanism 4 includes a PLC, an industrial personal computer, and a man-machine interface, where the man-machine interface is used to set a setting range including the surplus length of the control parameters, and can display the surplus length, the fiber paying-out length, and the loose tube length. The PLC and the industrial personal computer are used for receiving the detected length data of the optical fiber and the loose tube, calculating, judging whether the setting range of the surplus length is met or not, and controlling the tension of the optical fiber and the loose tube so as to control the surplus length.
In some alternative embodiments, the fiber releasing mechanism 1 includes: a fiber tray 11, a first detection assembly 13, and a first tensioning assembly 12.
The fiber tray 11 is used for winding and storing optical fibers; the first detecting component 13 is used for detecting the length of the optical fiber released by the fiber tray 11; the first tensioning assembly 12 is disposed between the fiber tray 11 and the first detecting assembly 13, and is used for adjusting the tension of the optical fiber discharged from the fiber tray 11.
In this embodiment, the first detecting component 13 detects the length of the optical fiber paid out by the fiber tray 11, and then transmits the detected data to the control mechanism 4, and the control mechanism 4 controls the tension of the optical fiber corresponding to each first tensioning component 12 by calculating whether the residual length of each optical fiber meets the requirement, so that the tension is restored to meet the requirement. In addition, the first tensioning assembly 12 may also maintain a certain tension of the optical fiber, thereby enabling the first detection assembly 13 to more accurately inspect the length of the paid-out optical fiber.
As shown in fig. 2, in some alternative embodiments, the first tensioning assembly 12 includes: fixed guide pulley 121, dancer guide pulley 122, and tension adjuster 123. Wherein the fixed guide wheel 121 is rotatably arranged; the dancer guide pulley 122 is arranged at intervals with the fixed guide pulley 121; the tension adjusting member 123 is connected to the dancer guide wheel 122, and is used for adjusting the distance between the dancer guide wheel 122 and the fixed guide wheel 121, so as to adjust the tension of the optical fiber on the fixed guide wheel 121 and the dancer guide wheel 122 after the optical fiber is released from the fiber disc 11.
In this embodiment, the fixed guide wheel 121 and the dancer guide wheel 122 are arranged at intervals, the optical fiber discharged from the fiber disc 11 is wound in from one side of the fixed guide wheel 121 and the dancer guide wheel 122 away from the fiber disc 11, and is wound out from the other side of the fixed guide wheel 121 and the dancer guide wheel 122 close to the fiber disc 11, and the interval between the dancer guide wheel 122 and the fixed guide wheel 121 is adjusted by the tension adjusting member 123, so that the tension of the optical fiber on the fixed guide wheel 121 and the dancer guide wheel 122 is adjusted.
In some alternative embodiments, the tensioning member 123 includes: the dancer swing 1231 and the cylinder 1232. One end of the dancer swing rod 1231 is rotatably arranged, and the other end of the dancer swing rod is connected with the dancer guide wheel 122; the cylinder 1232 is connected with the middle part of the dancer swing rod 1231, and is used for stabilizing or adjusting the interval between the dancer guide wheel 122 and the fixed guide wheel 121.
In this embodiment, one end of the dancer swing rod 1231 is rotatably disposed, the air cylinder 1232 is connected with the middle part of the dancer swing rod 1231 to form a lever structure, and the tension on the optical fiber is maintained by the space between the dancer guide wheel 122 and the fixed guide wheel 121 of the air cylinder 1232, and the air cylinder 1232 stretches. The tension of the optical fiber is adjusted by adjusting the interval between the dancer guide wheel 122 and the fixed guide wheel 121. Wherein, the air cylinder 1232 and the control mechanism 4 adjust the stretching amount according to the control signal of the control mechanism 4 to adjust the tension of the optical fiber so as to control the residual length.
In addition, an external air source is connected with the air cylinder 1232 through an air pipe 1234, an electric proportional valve 1233 is arranged on the air pipe 1234, and air pressure is provided for the air cylinder 1232 through the air pipe 1234 by the electric proportional valve 1233, so that a piston rod of the air cylinder 1232 pushes a dancer swing rod 1231 provided with a dancer guide wheel 122. The magnitude of the pneumatic pressure input to the cylinder 1232 is controlled by the analog output of 0-10VDC from the PLC in the control mechanism 4.
In some alternative embodiments, the first detection assembly 13 comprises: meter guide wheel 131 and meter detection sensor 132.
The meter guide wheel 131 can be rotatably arranged and abutted against the optical fiber, so that the optical fiber can be driven to rotate when moving; the meter detecting sensor 132 is used for detecting the number of turns of the meter guide wheel 131 to detect the length of the paid-out optical fiber.
In this embodiment, the meter guide wheel 131 is disposed near the first tensioning assembly 12, and the first tensioning assembly 12 maintains a certain tension on the optical fiber bypassing the meter guide wheel 131, so as to avoid sliding between the optical fiber and the meter guide wheel 131, thereby causing inaccurate counting of the meter guide wheel 131 and inaccurate measured optical fiber length. The magnets are arranged at equal intervals on the outer side of the meter guide wheel 131, the meter detection sensor 132 detects the equal-interval magnets of the meter guide wheel 131 in real time, signals are sent to the PLC input interface of the control mechanism 4 in a pulse mode, and the real-time meter length of the optical fiber is calculated and output through a calculation program in the PLC.
In some alternative embodiments, the traction sheave mechanism 2 comprises: an extruder 21, a traction wheel 23 and a second tensioning assembly 22.
The extruder 21 is arranged in the fiber outlet direction of the fiber releasing mechanism 1 and is used for coating loose tubes on the outer sides of all the optical fibers; the traction wheel 23 is used for drawing a loose tube which is internally provided with an optical fiber after passing through the extruder 21; a second tensioning assembly 22 is provided between the extruder 21 and the traction wheel 23 for adjusting the tension of the loose tube.
In this embodiment, after the extruder 21 wraps the loose tube around the outside of all the optical fibers, the loose tube with the optical fibers inside passes through the second tensioning assembly 22 and then enters the rear traction wheel 23, and the second tensioning assembly 22 provides tension to the loose tube. The second tensioning assembly 22 is identical in structure to the first tensioning assembly 12 and comprises a fixed guide wheel, a dancer guide wheel and a tension adjusting member, wherein the tension adjusting member comprises a dancer swing rod, a cylinder, an electric proportional valve and an air pipe.
The fixed guide wheel and the dancer guide wheel are arranged at intervals, the loose tube with the optical fiber arranged inside is wound in from one side of the fixed guide wheel and the dancer guide wheel, which is far away from the extruder 21, and is wound out from the other side of the fixed guide wheel and the dancer guide wheel, which is close to the extruder 21, and the tension adjusting piece is used for adjusting the interval between the dancer guide wheel and the fixed guide wheel, so that tension of the loose tube on the fixed guide wheel and the dancer guide wheel is adjusted and bypassed.
The tension of the loose tube with the optical fiber is provided by an electric proportional valve through an air tube to the air cylinder, so that the piston rod of the air cylinder pushes the dancer swing rod provided with the dancer guide wheel to provide the air, and the input size of the air pressure in the air cylinder is controlled by the analog quantity of 0-10VDC output by the PLC in the control mechanism 4.
In this example, the excess length of the optical fiber within the loose tube is adjusted by adjusting the tension of the loose tube by the second tensioning assembly 22.
In some alternative embodiments, the wire take-up mechanism 3 comprises: a third tensioning assembly 31 and a second detection assembly 32. Wherein, the third tensioning assembly 31 is arranged in the direction of the traction sleeve mechanism 2 for drawing out the loose sleeve of the optical fiber, and is used for adjusting the tension of the loose sleeve; a second detection assembly 32, provided between the traction sheave mechanism 2 and the third tensioning assembly 31, for detecting the length of the reeled loose sheave.
In this embodiment, the third tensioning assembly 31 has the same structure as the second tensioning assembly 22 and the first tensioning assembly 12, and also includes a fixed guide wheel, a dancer guide wheel and a tension adjusting member, and the tension adjusting member also includes a dancer swing rod, a cylinder, an electrical proportional valve and an air tube.
The fixed guide wheel and the dancer guide wheel are arranged at intervals, the loose tube with the optical fiber arranged inside is wound in from one side of the fixed guide wheel and the dancer guide wheel, which is far away from the traction sleeve mechanism 2, and is wound out from the other side of the fixed guide wheel and the dancer guide wheel, which is close to the traction sleeve mechanism 2, and the tension adjusting piece is used for adjusting the interval between the dancer guide wheel and the fixed guide wheel, so that tension of the loose tube on the fixed guide wheel and the dancer guide wheel is adjusted.
The second detecting assembly 32 has the same structure as the first detecting assembly 13, and comprises a metering guide wheel and a metering detection sensor. The second detection component 32 is arranged between the traction sleeve mechanism 2 and the third tensioning component 31, the third tensioning component 31 enables the loose tube bypassing the meter rice guide wheel to maintain a certain tension, and sliding between the loose tube and the meter rice guide wheel is avoided, so that inaccurate counting of the meter rice guide wheel is caused, and the measured loose tube length is inaccurate. The outer side of the meter guide wheel is provided with magnets at equal intervals, the real-time meter of the loose tube is provided with the magnets at equal intervals, the meter detection sensor detects the meter guide wheel in real time, signals are sent to the PLC input interface of the control mechanism 4 in a pulse mode, and the meter length of the real-time loose tube is calculated and output through an internal calculation program.
In this example, the third tensioning assembly 31 cooperates with the second tensioning assembly 22 to adjust the tension of the loose tube, wherein the second tensioning assembly 22 is primarily adjusted and the third tensioning assembly 31 assists in the adjustment. The third tensioning assembly 31 is further used for keeping the loose tube at a certain tension, so that sliding between the second detecting assembly 32 and the metering guide wheel is avoided, and inaccurate counting of the metering guide wheel and inaccurate measured loose tube length are caused.
On the other hand, the application also provides a method for adjusting the excess length of the loose tube optical fiber by on-line detection, which is implemented by the device for adjusting the excess length of the loose tube optical fiber by on-line detection, and comprises the following steps:
s1: and discharging a plurality of optical fibers, detecting the lengths of the optical fibers, and coating loose tubes on the outer sides of all the optical fibers.
In this example, the optical fibers are discharged from the fiber trays 11 of the plurality of fiber discharging mechanisms 1, the lengths of the optical fibers discharged from the fiber trays 11 are detected by the first detecting unit 13, all the optical fibers are covered with loose tubes by the extruder 21, and the loose tubes with the optical fibers are set inside after the drawing wheel 23 is drawn through the extruder 21.
S2: and winding the loose tube with the optical fiber inside, and detecting the length of the wound loose tube.
In this example, the length of the winding-up loose tube is detected by the second detection assembly 32 of the wire winding-up mechanism 3.
S3: and adjusting the tension of the optical fibers or the loose tube according to the length of each optical fiber and the length of the coated loose tube so as to adjust the residual length of the optical fibers in the loose tube.
In this embodiment, the fiber-placing tension, the loose tube tension (the tension provided by the back traction dancer and the take-up dancer) and the fixed length of the loose tube during the residual length detection are set according to the product structure, and the qualified intervals (ε 0, ε 1) of the residual length of the optical fiber are set in the human-machine interface HMI.
All the meter sensors of the first detection assembly 13 positioned on the fiber-releasing mechanism 1 detect pulse signals, collect the signals through a PLC and calculate the signals through an internal program, and the signals are converted into real-time optical fiber lengths.
The pulse signal is detected by the meter counting sensor of the second detecting component 32 on the wire collecting mechanism 3, and the pulse signal is collected by the PLC and calculated by an internal program, and is converted into the real-time loose tube length.
Each time the detected loose tube length reaches the set fixed length L, the length L1 of each optical fiber in the same time period is obtained, and the residual length of each optical fiber is calculated as epsilon= (L1-L)/L x 100%.
Considering that the optical fiber is in a stressed tensile state when the length of the optical fiber is measured on line and the optical fiber is in a zero tension state when the length of the optical fiber is measured manually, the obtained excess length of each optical fiber is compared with a qualified section (epsilon 2, epsilon 3) of the excess length of the optical fiber, which is reduced by a certain proportion, wherein the section (epsilon 2, epsilon 3) is included in the section (epsilon 0, epsilon 1), namely the section (epsilon 0, epsilon 1) is positioned in the section (epsilon 2, epsilon 3).
In some alternative embodiments, step S3 comprises the steps of:
when the measured surplus length values of all the optical fibers are not in the set range, the tension of the loose tube is firstly adjusted, when the surplus length values are larger than the maximum value of the set range, the tension of the loose tube is increased, and when the surplus length values are smaller than the minimum value of the set range, the tension of the loose tube is reduced.
In the present embodiment, when more than 50% of the excess length values of all the optical fibers are not within the interval (ε 2, ε 3), the loose tube tension is adjusted by adjusting the second and third tension assemblies 22, 31. When the surplus length value is in the interval (epsilon 3, ++ infinity), the second tensioning assembly 22 and the third tensioning assembly 31 are controlled by PID calculation to increase the tension of the loose tube, and when the surplus length value is in the interval (0, ++ 2), the second tensioning assembly 22 and the third tensioning assembly 31 are controlled by PID control algorithm calculation to decrease the tension of the loose tube, and the tension is regulated by tension regulating members in the second tensioning assembly 22 and the third tensioning assembly 31, in particular, the pressure of an electric proportional valve control cylinder.
In some alternative embodiments, step S3 comprises the steps of:
and when the measured residual length value of a certain optical fiber is smaller than the minimum value of the set range, reducing the fiber releasing tension.
When the residual length value of a certain optical fiber is measured to be larger than the maximum value of the set range, the fiber-releasing tension is increased.
In this embodiment, when a fiber Yu Chang is measured to be in the interval (0, epsilon 2), the fiber Yu Chang is calculated to be in the interval (epsilon 2, epsilon 3) by controlling the corresponding first tensioning assembly 12 through calculation of the PID control algorithm. When Yu Chang of an optical fiber is measured to be in the interval (epsilon 3, ++ infinity), the corresponding first tensioning assembly 12 is controlled by a PID control algorithm to increase the fiber-releasing tension so that Yu Chang of the optical fiber is in the interval (epsilon 2, epsilon 3).
In addition, the real-time excess length of each optical fiber after detection and adjustment is displayed in real time in a human-computer interface in a biaxial curve mode; the real-time residual length average value of all the optical fibers after detection and adjustment is displayed in real time in a biaxial curve form on a human-computer interface; when the real-time surplus length or the average surplus length of each optical fiber exceeds the set surplus length range, the human-computer interface displays alarm information, including the number of the optical fiber unit, the length position of the sleeve and the length position of the optical fiber, and reminds production personnel in the form of an audible-visual alarm.
In summary, in this embodiment, the optical fibers are respectively released from the optical fiber trays 11 of the plurality of releasing mechanisms 1, and the first detecting component 13 detects the lengths of the optical fibers released from the optical fiber trays 11, and the extruder 21 of the pulling sleeve mechanism 2 wraps the loose sleeve around all the optical fibers; the take-up mechanism 3 takes up the loose tube with the optical fiber inside and detects the length of the taken-up loose tube with the second detecting assembly 32. The control mechanism 4 calculates and judges whether the excess length in the loose tube is within a set range according to the length of each optical fiber and the length of the coated loose tube so as to control the fiber releasing mechanism 1 to adjust the tension of the optical fiber or control the traction sleeve mechanism 2 to adjust the tension of the loose tube, and finally, the excess length of the optical fiber in the loose tube is adjusted to be kept within the set range. The length of each optical fiber and the length of the winding loose tube are obtained in real time in an on-line monitoring mode, so that the surplus length is calculated, the tension of the optical fiber is controlled to be adjusted by the first tensioning assembly according to whether the surplus length meets the requirement or not through the control mechanism 4, and the tension of the loose tube is controlled to be adjusted by the second tensioning assembly 22 and the second detection assembly 32, so that the surplus length of the optical fiber in the loose tube is controlled to be within a set range. The problems that the efficiency of measuring the residual length of the optical fiber in the loose tube after processing is low and errors are easy to occur in the prior art are avoided; and the device can be adjusted on line in time, and the yield is improved.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An on-line detection adjusts loose tube optical fiber surplus length device which is characterized by comprising:
a plurality of fiber releasing mechanisms (1) for releasing optical fibers in the same direction, detecting the lengths of the released corresponding optical fibers, and adjusting the tension of the optical fibers, the fiber releasing mechanisms (1) comprising:
-a fiber tray (11) for winding and storing optical fibers;
-a first detection assembly (13) for detecting the length of optical fiber paid out by the fiber tray (11);
-a first tensioning assembly (12) arranged between said disc (11) and a first detection assembly (13) for adjusting the tension of the optical fiber paid out by said disc (11);
the traction sleeve mechanism (2) is arranged in the fiber outlet direction of the fiber releasing mechanism (1) and is used for coating loose tubes on the outer sides of all optical fibers, dragging the loose tubes with the optical fibers arranged in, and adjusting the tension of the loose tubes, and the traction sleeve mechanism (2) comprises:
-an extruder (21) arranged in the fiber-out direction of the fiber-releasing mechanism (1) for cladding loose tubes outside all optical fibers;
-a traction wheel (23) for drawing a loose tube of optical fiber inside after passing through the extruder (21);
-a second tensioning assembly (22) arranged between the extruder (21) and a traction wheel (23) for adjusting the tension of the loose tube
A take-up mechanism (3) for taking up a loose tube in which an optical fiber is provided and detecting the length of the taken-up loose tube;
and a control mechanism (4) for adjusting the excess length of the optical fibers in the loose tube according to the length of each optical fiber to be paid out and the length of the coated loose tube, when the excess length value exceeding the set number of the excess length values of all the optical fibers is not within the set range, adjusting the tension of the loose tube, when the excess length value is larger than the maximum value of the set range, increasing the tension of the loose tube, and when the excess length value is smaller than the minimum value of the set range, decreasing the tension of the loose tube.
2. The on-line detection loose tube optical fiber excess length adjustment device according to claim 1, wherein the first tensioning assembly (12) comprises:
a fixed guide wheel (121) rotatably provided;
a dancer guide wheel (122) which is arranged at intervals with the fixed guide wheel (121);
and the tension adjusting piece (123) is connected with the dancer guide wheel (122) and is used for adjusting the interval between the dancer guide wheel (122) and the fixed guide wheel (121) so as to adjust the tension of the optical fiber on the fixed guide wheel (121) and the dancer guide wheel (122) after the dancer guide wheel is released from the fiber disc (11).
3. The device for on-line detection and adjustment of loose tube optical fiber surplus length according to claim 2, wherein the tension adjusting member (123) comprises:
one end of the dancer swing rod (1231) is rotatably arranged, and the other end of the dancer swing rod is connected with the dancer guide wheel (122);
and the air cylinder (1232) is connected with the middle part of the dancer swing rod (1231) and is used for stabilizing or adjusting the interval between the dancer guide wheel (122) and the fixed guide wheel (121).
4. An on-line detection device for adjusting loose tube optical fiber surplus length according to claim 2, characterized in that the first detection assembly (13) comprises:
the meter guide wheel (131) can be rotatably arranged and abutted against the optical fiber, so that the optical fiber can be driven to rotate when moving;
and the meter detecting sensor (132) is used for detecting the rotation circle number of the meter guide wheel (131) so as to detect the length of the released optical fiber.
5. The device for on-line detection and adjustment of loose tube optical fiber surplus length according to claim 1, wherein the take-up mechanism (3) comprises:
a third tensioning component (31) which is arranged in the direction of the traction sleeve mechanism (2) for drawing out the loose sleeve of the optical fiber and is used for adjusting the tension of the loose sleeve;
and a second detection assembly (32) arranged between the traction sleeve mechanism (2) and the third tensioning assembly (31) and used for detecting the length of the winding-up loose sleeve.
6. A method for on-line detecting and adjusting the excess length of loose tube optical fibers, which is implemented by the on-line detecting and adjusting device for the excess length of loose tube optical fibers according to any one of claims 1 to 5, and comprises the following steps:
discharging a plurality of optical fibers, detecting the lengths of the optical fibers, and coating loose tubes on the outer sides of all the optical fibers;
coiling a loose tube with an optical fiber arranged in the loose tube, and detecting the length of the coiled loose tube;
according to the length of each optical fiber and the length of the cladding loose tube, the tension of the optical fiber or the loose tube is adjusted so as to adjust the residual length of the optical fiber in the loose tube, when the residual length value exceeding the set number in the measured residual length values of all the optical fibers is not in the set range, the tension of the loose tube is adjusted first, when the residual length value is larger than the maximum value of the set range, the tension of the loose tube is increased, and when the residual length value is smaller than the minimum value of the set range, the tension of the loose tube is reduced.
7. The method for on-line detecting and adjusting the excess length of loose tube optical fiber according to claim 6, wherein said adjusting the tension of the optical fiber or the loose tube according to the length of each optical fiber to be paid out and the length of the coated loose tube to adjust the excess length of the optical fiber in the loose tube further comprises:
when the measured residual length value of a certain optical fiber is smaller than the minimum value of the set range, reducing the fiber releasing tension;
when the residual length value of a certain optical fiber is measured to be larger than the maximum value of the set range, the fiber-releasing tension is increased.
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| CN202210588731.7A CN114955726B (en) | 2022-05-26 | 2022-05-26 | Device and method for online detecting and adjusting loose tube optical fiber residual length |
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| CN210154526U (en) * | 2019-06-24 | 2020-03-17 | 苏州古河电力光缆有限公司 | On-line excess length monitoring device for optical fiber composite overhead ground wire |
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| CN114955726A (en) | 2022-08-30 |
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