CN212953494U - Optical cable loose tube cabling pay-off - Google Patents
Optical cable loose tube cabling pay-off Download PDFInfo
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- CN212953494U CN212953494U CN202021194862.XU CN202021194862U CN212953494U CN 212953494 U CN212953494 U CN 212953494U CN 202021194862 U CN202021194862 U CN 202021194862U CN 212953494 U CN212953494 U CN 212953494U
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Abstract
The utility model discloses an optical cable pine sleeve pipe stranding pay-off, include: a steering guide wheel; a tensioning unit, the tensioning unit in turn comprising: the first support comprises a first vertical rod and a first cross rod horizontally extending out of the upper end of the first vertical rod; the wire storage wheel set is arranged on the first cross rod in a horizontal mode; the middle position of the swing rod is hinged to the first vertical rod through a fulcrum, one end of the swing rod extending to the lower side of the wire storage guide wheel is provided with a dancing wheel with a horizontal axis, and the other end of the swing rod is provided with a counterweight; a dancing wheel group; the loose tube drawn out from the loose tube coiling tool is coiled on the wire storage wheel set and the dancing wheel set for at least one circle after bypassing the steering guide wheel and then drawn out. The utility model discloses a buffer unit comes the vibration that tentatively slows down loose sleeve pipe unwrapping wire, adjusts loose sleeve pipe unwrapping wire jointly through storing up line wheelset and dance wheelset, can reduce loose sheathed tube lateral vibration phenomenon. Through the balance weight come balanced dance wheelset dead weight, can make unwrapping wire tension set for lower level, satisfy the thin-diameter loose sleeve pipe stranding requirement.
Description
Technical Field
The utility model relates to an optical cable technical field, specifically speaking relates to an optical cable pine sleeve pipe stranding pay-off.
Background
The optical cable production generally comprises three processes of plastic sheathing, cabling and sheath sheathing, wherein the paying-off tension of a loose tube in the cabling process has a decisive influence on the formation of the final extra length of the loose tube, and when the tension fluctuation is large, the stretching and low-temperature characteristics of the optical cable are difficult to ensure to be qualified. In addition, in the SZ stranding process commonly used in optical cable production, since the stranding speed is decelerated to zero and then reverse stranding is started at each strand reversal, the advancing speed of the loose tube periodically changes. The periodic change can cause the pay-off of the loose tube to oscillate under certain conditions, and form serious jitter after the oscillation is accumulated to a certain degree, and finally cause the pay-off tension of the loose tube to have serious fluctuation, thereby not only influencing normal production, but also causing the optical cable to be unqualified in stretching and low-temperature characteristics.
At present, the cabling and paying-off tension of the loose tube mainly adopts a movable pulley block control mode and a dancing pulley block control mode, and main components of the two control modes are respectively shown in fig. 1 and fig. 2.
The key control component of the movable pulley block control mode is the movable pulley block 33, and the paying-off tension of the movable pulley block is determined by the weight of the counterweight 4 hung on the movable pulley block 33 and the self weight of the movable pulley block. When the traveling speed of the loose tube 100 changes, the movable pulley block 33 moves up and down along the slide rail 32, then a sensor arranged on the movable pulley block 33 sends out a signal to regulate and control the paying-off speed of the loose tube 100, and finally the paying-off speed and the traveling speed are kept synchronous again. Since the frictional resistance is inevitably existed between the movable pulley block 33 and the slide rail 32, the control mode of the movable pulley block 33 not only has a slow response, but also is easy to generate out-of-control when the paying-off tension is less than the frictional resistance, so that the paying-off device cannot be normally used when the required paying-off tension is small.
The key control part of the dance wheel control mode is the dance wheel set 1 and the swing rod 2 thereof, and the paying-off tension of the dance wheel set is set by increasing or decreasing or moving a counterweight on the swing rod 2. When the advancing speed of the loose tube 100 changes, the dancing wheel set 1 and the swing rod 2 thereof swing up and down, then a sensor arranged at the tail end of the swing rod 2 sends out a signal to regulate and control the paying-off speed of the loose tube 100, and finally the paying-off speed and the advancing speed are kept synchronous again. Although the dancing wheel control mode solves the problem of slow response, the dancing wheel and the swinging rod thereof swing up and down during twisting and reversing every time. The periodic up-and-down swinging can cause the loose tube to oscillate in the transverse direction when the variation amplitude of the advancing speed is large, the variation frequency is high, the pay-off tension is small and the pay-off path is long, and can form serious shaking after the oscillation is accumulated to a certain degree, so that the loose tube is easy to break and entangle with the guide wheel, and the optical cable is easy to stretch and have unqualified low-temperature characteristics.
In addition, the setting of the minimum pay-off tension when the dancing wheel control mode is used is limited due to the influence of the dead weights of the dancing wheel and the swinging rod.
The pay-off jitter generated by the currently used pay-off device mainly causes the following defects in the production process:
1. limiting further increases in cable speed. Along with the continuous improvement of the cable speed, the variation amplitude and the variation frequency of the advancing speed of the loose tube are continuously increased, the paying-off jitter of the loose tube is more and more serious, and particularly in the stopping and speed reducing stage, the loose tube is easy to fall off from the guide wheel and break and generate mutual entanglement.
2. It is difficult to secure the tensile and low temperature characteristics when the optical cable is loose and the outer diameter of the tube is thin. On one hand, the requirement of the thin-diameter loose tube on the stability of the paying-off tension is very strict, on the other hand, the required cabling paying-off tension of the thin-diameter loose tube is small, the paying-off is easy to shake, and the fluctuation of the paying-off tension is large, so the stretching and low-temperature characteristics are easy to fail,
3. the quality abnormality is easily generated when the optical cable with large core number is produced. The loose tubes used by the optical cable with large core number are more, the paying-off path of the loose tubes is longer, and paying-off jitter is more serious, so that quality abnormity is easily caused.
4. The cable core with compact structure is easy to generate quality abnormity. For a cable core with a compact structure, gaps among the loose tubes are small, and some loose tubes are even negative, so that the loose tubes are easy to extrude when being twisted, and if the loose tubes are shaken by paying off, twisting dislocation can be easily caused, and the loose tubes are blocked and broken in a sheath process.
5. Poor stranding is easily generated when the cable core with small pitch is produced. The loose tube of the small-pitch cable core is easy to bounce near a reversing point, when the paying-off shakes, the paying-off tension of the loose tube becomes small, and a straight cable and an exposed central reinforcing part are easy to form near the reversing point. Such poor twisting near the reversal point not only produces a noticeable poor appearance on the jacket, but also tends to result in poor attenuation of the cable.
In order to reduce the unwrapping wire shake of loose sheathed tube, improve the tensile stability of stranding unwrapping wire, thoroughly solve the problem that exists in the above-mentioned production, the utility model discloses the loose sheathed tube pay-off that has now has carried out the transformation.
SUMMERY OF THE UTILITY MODEL
For solving the above problem, the utility model provides an optical cable loose tube stranding pay-off, include:
a steering guide wheel;
a tensioning unit, which in turn comprises:
the first support comprises a first vertical rod and a first cross rod horizontally extending out of the upper end of the first vertical rod;
the wire storage wheel set is arranged on the first cross rod in a horizontal mode;
the middle position of the swing rod is hinged to the first vertical rod through a fulcrum, one end of the swing rod extending to the lower side of the thread storage wheel set is provided with a dancing wheel set with a horizontal axis, and the other end of the swing rod is provided with a counterweight;
a dancing wheel group;
the loose tube drawn out from the loose tube disc is wound on the wire storage wheel set and the dancing wheel set for at least one circle after bypassing the steering guide wheel and then drawn out,
wherein, store up line wheelset and dance wheelset and constitute by the guide pulley of a plurality of coaxial arrangements respectively.
Preferably, the device further comprises a buffer unit, wherein the buffer unit comprises:
the second support comprises a second vertical rod and a second cross rod horizontally extending out of the upper end of the second vertical rod;
the axis of a balance wheel shaft of the buffer balance wheel is horizontally hung on the second cross rod in a hinged mode;
one end of the buffer spring is connected to the second vertical rod, and the other end of the buffer spring is connected to the balance wheel shaft of the buffer balance wheel;
the loose tube coiled on the wire storage wheel set and the dancing wheel set and pulled out after at least one circle of the loose tube bypasses the buffer balance wheel and is pulled out in the direction far away from the buffer spring.
Preferably, the tensioning unit and the buffer unit are respectively arranged on two sides of the steering guide wheel.
Preferably, the outer circumferences of any guide wheel of the dancing wheel set and the wire storage wheel set, the steering guide wheel and the buffering balance wheel are provided with a groove.
Preferably, a tension adjusting mechanism that adjusts a tension of the buffer spring is further provided.
Preferably, the tension adjusting mechanism includes: one end of the buffer spring, which is connected with the buffer balance wheel, is connected with a positioning bolt, a thread is arranged on the positioning bolt, a hole is arranged in the radial direction of the balance wheel shaft of the buffer balance wheel, the positioning bolt penetrates through the hole in the balance wheel shaft, and nuts are screwed at two ends of the penetrating hole of the positioning bolt respectively to fix the positioning bolt.
Preferably, the groove is an inverted trapezoidal groove with width and depth matching the diameter of the loose tube.
The utility model discloses an optical cable loose tube stranding pay-off preliminarily slows down the oscillation of loose tube unwrapping wire through buffer unit, adjusts loose tube unwrapping wire jointly through storing up line wheelset and dance wheelset, can reduce loose sheathed tube lateral vibration phenomenon. The tension force of the buffer spring can be freely adjusted within a certain range, so that the buffer unit can play a role to the maximum extent when the tension force of different loose tubes is ensured. Through the balance weight come balanced dance wheelset dead weight, can make unwrapping wire tension set for lower level to satisfy thin loose sheathed tube stranding requirement.
Drawings
The above features and technical advantages of the present invention will become more apparent and readily appreciated from the following description of the embodiments thereof, taken in conjunction with the accompanying drawings.
FIG. 1 is a diagram showing a movable pulley block control mode in the prior art;
FIG. 2 is a diagram illustrating a prior art dance wheel set control scheme;
FIG. 3 is a schematic view showing a pay-off device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a tensioning unit according to an embodiment of the present invention;
FIG. 5 is a schematic view showing the inverted trapezoidal grooves of the wire storage wheel set and the dancing wheel set according to the embodiment of the present invention;
fig. 6 is a schematic view showing a tension adjusting mechanism of a buffer spring according to an embodiment of the present invention.
Detailed Description
Embodiments of the cable loose tube cabling and paying out device according to the present invention will be described with reference to the accompanying drawings. Those of ordinary skill in the art will recognize that the described embodiments can be modified in various different ways, or combinations thereof, without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims. Furthermore, in the present description, the drawings are not to scale and like reference numerals refer to like parts.
As shown in fig. 3, the loose tube reel 101 is provided on a pay-off stand 102, and the loose tube 100 drawn out from the loose tube reel 101 is paid off through the optical cable loose tube cabling pay-off device of the present embodiment. The optical cable loose tube cabling pay-off device comprises a tensioning unit, a buffering unit and a steering guide wheel 5, wherein the tensioning unit mainly comprises a dancing wheel set 1, a swinging rod 2, a counterweight 4 and a wire storage wheel set 3, and the buffering unit mainly comprises a buffering balance wheel 6 and a buffering spring 7.
As shown in fig. 3, the first support 31 includes a first vertical rod 311 and a first cross rod 312 extending horizontally from an upper end of the first vertical rod 311, the first cross rod 312 is provided with a line storage wheel set 3 with a horizontal axis, an intermediate position of the swing rod 2 (only an area between two end points of the swing rod, not a strict middle point) is hinged to the first vertical rod 311 through a fulcrum 21, one end of the swing rod extending to a lower side of the line storage wheel set 3 is provided with a dance wheel set 1 with a horizontal axis, the other end of the swing rod is provided with a counterweight 4, and the counterweight 4 can be increased or decreased or moved on the swing rod 2. The loose tube 100 is drawn out from the loose tube disc 101, wound around the steering guide wheel 5, wound on the wire storage wheel set 3 and the dancing wheel set 1 for at least one turn, and then drawn out. The dead weight of the dancing wheel set 1 and the swing rod on the right side of the fulcrum can be balanced by adjusting the weight of the counterweight 4, so that the residual weight on the right side of the fulcrum is used for increasing or decreasing the tension. For example, by adding or enlarging the counterweight 4, the counterweight 4 can balance most of the dead weight of the dancing wheel and the swing rod on the right side of the fulcrum, so that the residual weight is smaller, and the requirement of cabling with smaller tension of the small-diameter loose tube can be met. Reduce counter weight 4's weight, then counter weight 4 balances the partly dead weight of the pendulum rod on dance wheel and fulcrum right side, then remaining weight is great, then increases the pressurized of the pine sleeve pipe of coiling the lower part of dance wheelset 1, has increased the tension of pine sleeve pipe promptly.
Moreover, since the axes of the wire storage wheel group 3 and the dancing wheel group 1 are horizontal and on the same vertical plane to limit the tension of the loose tube wound thereon, the oscillation of the loose tube 100 in the transverse direction can be significantly reduced compared to the prior art in which the loose tube is wound only from the lower part of the dancing wheel.
In order to increase the length of the cord storage of the tensioning unit, as shown in fig. 4, the cord storage wheel set 3 and the dancing wheel set 1 may be both wheel sets composed of a plurality of coaxially arranged guide wheels 35, as shown in fig. 5, and the guide wheels 35 of these wheel sets are mounted on the same wheel shaft 34, although they are almost close to each other, but can freely rotate independently without mutual influence. Meanwhile, in order to prevent the loose tube from jumping out of the guide wheel and pressing lines from being generated between the loose tube and the guide wheel, grooves matched with the diameter of the loose tube are carved on the surfaces of the guide wheel of the steering guide wheel, the guide wheel of the line storage wheel set, the guide wheel of the dancing wheel set and the buffering balance wheel. One end of the swing rod 2 is fixedly arranged on a wheel shaft of the dancing wheel set 1, a groove 13 is arranged on the outer circumference of the dancing wheel set 1, and similarly, a groove is also arranged on the outer circumference of the wire storage wheel set 3. The width of the groove 13 may be slightly wider than the diameter of the loose tube 100 and the depth may be the same as the radius of the loose tube, as shown in fig. 4 and 5. The size of the groove 13 is used for better guiding the loose tube winding displacement so that the winding displacement of the loose tube is orderly and orderly, but the size of the groove 13 is not limited herein.
Further, the second support 8 includes a second vertical rod 81 and a second cross rod 82 extending horizontally from the upper end of the second vertical rod 81, the buffering balance 6 with a horizontal axis is freely suspended on the second cross rod 82, specifically, the hanging rod 62 may extend from the second cross rod 82, and the buffering balance 6 may be sleeved on the balance axle 65 of the buffering balance 6 and the hanging rod 62 on the second cross rod 82 through the rope sleeve 61, so that the buffering balance 6 is suspended on the hanging rod 62. Or the balance wheel axle of the buffering balance wheel 6 is hinged on the second cross rod 82 through a swing rod fixedly connected with the balance wheel axle. The second vertical rod 81 is provided with a buffer spring 7, one end of the buffer spring 7 is connected to the second vertical rod 81, the other end of the buffer spring 7 is connected to the buffer balance wheel 6, the buffer balance wheel 6 is tensioned towards the rear lower part by the buffer spring 7, and the buffer unit adds primary buffer to the tensioning unit.
It should be noted that the buffer unit is only a preferred solution and is not an essential feature. It is also possible to use only the tensioning unit and the steering guide 5.
The loose tube 100 is drawn out from the loose tube rolling tool 101, wound on the wire storage wheel set 3 and the dancing wheel set 1 for at least one turn, wound on the buffering balance wheel 6 and drawn out in a direction away from the buffering spring 7. As shown in fig. 3, the loose tube 100 passes over the steering guide wheel 5, passes downward through the yarn accumulating wheel set 3 and the dancing wheel set 1, passes upward through the yarn accumulating wheel set 3, passes through the damping balance 6, and is pulled out to the side away from the damping spring.
For the control of the pay-off tension, the essence is to utilize the wire storage principle, buffer the change of the pay-off or the advancing speed through wire storage, and eliminate the influence caused by asynchronism of the pay-off and the advancing speed in a short time, so the more the number of the steps of the wire storage, the longer the length, the more rapid the reaction, and the smaller the fluctuation of the pay-off tension.
The tensioning unit that this embodiment adopted not only keeps the advantage that dance wheel mode reaction is swift, but also combines the influence that the line length is longer, the swing is only limited in the advantage of loose tube longitudinal direction of running block mode storage, and the buffer unit of establishing in addition has increased the line storage rank equivalently. Therefore, the overall stability of the pay-off tension can be fundamentally improved by adopting the control mode of the invention. The process of controlling the paying-off tension by adopting the optical cable loose tube cabling paying-off device of the embodiment is as follows: when the travelling speed of the loose tube changes, firstly, the left-right swing of the balance wheel is buffered to primarily buffer the travelling speed change, so that the loose tube is always kept in a tight state, then, the up-down swing of the dancing wheel set 1 of the tensioning unit is used for further inhibiting the travelling speed change, and meanwhile, a sensor (arranged on the dancing wheel set 1) sends out a signal to regulate and control the paying-off speed of the loose tube, and finally, the paying-off speed and the travelling speed are kept synchronous again. Because the change of the advancing speed is buffered twice before the sensor sends out a signal, the overall stability of the paying-off process of the loose tube is obviously improved.
Further, as shown in fig. 5, in order to ensure that the buffer unit can function to the maximum extent at different tensions of the loose tube, a form in which the tension of the buffer spring can be freely adjusted within a certain range is realized by the tension adjusting mechanism. One end of the buffer spring connected with the buffer balance wheel is connected with a positioning bolt 63, a thread is arranged on the positioning bolt 63, a hole is radially arranged on the balance wheel shaft of the buffer balance wheel, the positioning bolt 63 penetrates through the hole on the balance wheel shaft, and nuts 64 are screwed at two ends of the penetrating hole of the positioning bolt 63 to fix the positioning bolt. The two nuts 64 can be adjusted through adjustment, so that the position of the positioning bolt 63 is adjusted, the tension of the buffer spring is adjusted, and the tension of the buffer spring is matched with the paying-off tension of the loose tube as much as possible.
In an alternative embodiment, in order to ensure that the loose tubes wound on the surface of the steering guide wheel, the guide wheel of the wire storage wheel set, the guide wheel of the dancing wheel set and the buffering balance wheel can not jump out of the surface of the guide wheel and can not press and rub against each other, the grooves on the surface of the steering guide wheel, the guide wheel of the wire storage wheel set, the guide wheel of the dancing wheel set and the buffering balance wheel can be inverted trapezoidal grooves with the width and the depth matched with the diameter of the loose tubes.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An optical cable loose tube cabling pay-off device, comprising:
a steering guide wheel;
a tensioning unit, which in turn comprises:
the first support comprises a first vertical rod and a first cross rod horizontally extending out of the upper end of the first vertical rod;
the wire storage wheel set is arranged on the first cross rod in a horizontal mode;
the middle position of the swing rod is hinged to the first vertical rod through a fulcrum, one end of the swing rod extending to the lower side of the thread storage wheel set is provided with a dancing wheel set with a horizontal axis, and the other end of the swing rod is provided with a counterweight;
a dancing wheel group;
the loose tube drawn out from the loose tube disc is wound on the wire storage wheel set and the dancing wheel set for at least one circle after bypassing the steering guide wheel and then drawn out,
wherein, store up line wheelset and dance wheelset and constitute by the guide pulley of a plurality of coaxial arrangements respectively.
2. The optical cable loose tube cabling pay-off device according to claim 1,
still include buffer cell, buffer cell includes:
the second support comprises a second vertical rod and a second cross rod horizontally extending out of the upper end of the second vertical rod;
the axis of a balance wheel shaft of the buffer balance wheel is horizontally hung on the second cross rod in a hinged mode;
one end of the buffer spring is connected to the second vertical rod, and the other end of the buffer spring is connected to the balance wheel shaft of the buffer balance wheel;
the loose tube coiled on the wire storage wheel set and the dancing wheel set and pulled out after at least one circle of the loose tube bypasses the buffer balance wheel and is pulled out in the direction far away from the buffer spring.
3. The optical cable loose tube cabling pay-off device according to claim 2,
the tensioning unit and the buffer unit are respectively arranged on two sides of the steering guide wheel.
4. The optical cable loose tube cabling pay-off device according to claim 2,
the outer circumferences of any guide wheel, the steering guide wheel and the buffering balance wheel of the dancing wheel set and the wire storage wheel set are provided with a groove.
5. The optical cable loose tube cabling pay-off device according to claim 2,
and a tension adjusting mechanism for adjusting the tension of the buffer spring is also arranged.
6. The optical cable loose tube cabling pay-off device according to claim 5,
the tension adjusting mechanism includes: one end of the buffer spring, which is connected with the buffer balance wheel, is connected with a positioning bolt, a thread is arranged on the positioning bolt, a hole is arranged in the radial direction of the balance wheel shaft of the buffer balance wheel, the positioning bolt penetrates through the hole in the balance wheel shaft, and nuts are screwed at two ends of the penetrating hole of the positioning bolt respectively to fix the positioning bolt.
7. The optical cable loose tube cabling pay-off device according to claim 4,
the groove is an inverted trapezoidal groove with the width and the depth matched with the diameter of the loose tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021194862.XU CN212953494U (en) | 2020-06-24 | 2020-06-24 | Optical cable loose tube cabling pay-off |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021194862.XU CN212953494U (en) | 2020-06-24 | 2020-06-24 | Optical cable loose tube cabling pay-off |
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| CN212953494U true CN212953494U (en) | 2021-04-13 |
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| CN202021194862.XU Active CN212953494U (en) | 2020-06-24 | 2020-06-24 | Optical cable loose tube cabling pay-off |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476829A (en) * | 2022-01-28 | 2022-05-13 | 中国人民解放军31401部队 | Box type untwisting field optical cable take-up device |
| CN115009926A (en) * | 2022-05-30 | 2022-09-06 | 江苏俊知光电通信有限公司 | Beam tube paying-off tension automatic adjustment counterweight device for layer-stranded outdoor cable |
| CN115072491A (en) * | 2022-06-29 | 2022-09-20 | 长飞光纤光缆股份有限公司 | Cable sleeve dynamic tension reading device and adjusting device |
-
2020
- 2020-06-24 CN CN202021194862.XU patent/CN212953494U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476829A (en) * | 2022-01-28 | 2022-05-13 | 中国人民解放军31401部队 | Box type untwisting field optical cable take-up device |
| CN114476829B (en) * | 2022-01-28 | 2023-08-08 | 中国人民解放军31401部队 | Box type untwisted field optical cable winding device |
| CN115009926A (en) * | 2022-05-30 | 2022-09-06 | 江苏俊知光电通信有限公司 | Beam tube paying-off tension automatic adjustment counterweight device for layer-stranded outdoor cable |
| CN115009926B (en) * | 2022-05-30 | 2024-03-22 | 江苏俊知光电通信有限公司 | Automatic balance weight adjusting device for paying-off tension of stranding pipe of layer-stranded outdoor cable |
| CN115072491A (en) * | 2022-06-29 | 2022-09-20 | 长飞光纤光缆股份有限公司 | Cable sleeve dynamic tension reading device and adjusting device |
| CN115072491B (en) * | 2022-06-29 | 2023-11-10 | 长飞光纤光缆股份有限公司 | Cable sleeve dynamic tension reading device and adjusting device |
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