阅读说明：本技术 一种光纤生产牵引设备及辅助牵引方法 (Optical fiber production traction equipment and auxiliary traction method ) 是由 沈小平 石碧波 沈燏 赵梦婷 沈志华 郑欢 于 2021-06-29 设计创作，主要内容包括：本发明创造提供了一种光纤辅助牵引方法,将光纤穿过辅助定位装置中的导向器,并经定位下导管伸出；光纤由驱动轮和从动轮夹紧,并随驱动轮转动,使驱动轮与从动轮对光纤形成向下拉拽作用力；通过驱动轮与从动轮对光纤夹紧作用力变化,判断光纤直径变化趋势,并实时将驱动轮和/或从动轮对光纤压力值反馈给一控制器；由控制器控制间距调整装置动作,对驱动轮与从动轮间距进行适应性调整,保证驱动轮与从动轮对光纤夹紧力趋于恒定。本发明创造由控制器控制驱动缸进行伸缩动作,自适应改变驱动轮与从动轮对光纤的夹紧力,最大限度的避免光纤发生断裂。(The invention provides an optical fiber auxiliary traction method, wherein an optical fiber penetrates through a guider in an auxiliary positioning device and extends out through a positioning lower guide pipe; the optical fiber is clamped by the driving wheel and the driven wheel and rotates along with the driving wheel, so that the driving wheel and the driven wheel form a downward pulling acting force on the optical fiber; judging the change trend of the diameter of the optical fiber through the change of the clamping acting force of the driving wheel and the driven wheel on the optical fiber, and feeding back the pressure value of the optical fiber of the driving wheel and/or the driven wheel to a controller in real time; the controller controls the spacing adjusting device to act, the spacing between the driving wheel and the driven wheel is adjusted adaptively, and the situation that the clamping force of the optical fiber of the driving wheel and the driven wheel tends to be constant is guaranteed. The controller controls the driving cylinder to stretch and retract, the clamping force of the driving wheel and the driven wheel to the optical fiber is changed in a self-adaptive mode, and the optical fiber is prevented from being broken to the maximum extent.)

1. An optical fiber production traction device is characterized in that: comprises a driving wheel component and a driven wheel component which are correspondingly arranged outside a fixed frame; the driving wheel assembly and the driven wheel assembly are both arranged on the fixed frame in a sliding manner, and an auxiliary positioning device is arranged on the fixed frame between the driving wheel assembly and the driven wheel assembly; a first position adjusting assembly is arranged on the fixed frame corresponding to the driving wheel assembly, a second position adjusting assembly is arranged on the fixed frame corresponding to the driven wheel assembly, and a distance adjusting device is arranged between the driving wheel assembly and the driven wheel assembly; the driving wheel assembly comprises a driving wheel mounting plate and a driving wheel rotatably mounted on the driving wheel mounting plate, and the driving wheel is driven to rotate by a driving mechanism; the driven wheel assembly comprises a driven wheel mounting plate and a driven wheel rotatably mounted on the driven wheel mounting plate.

2. An optical fiber production pulling apparatus according to claim 1, wherein: the auxiliary positioning device comprises a positioning lower guide pipe and a guider above the positioning lower guide pipe.

3. An optical fiber production pulling apparatus according to claim 1, wherein: the distance adjusting device comprises a driving cylinder between a driving wheel mounting plate and a driven wheel mounting plate.

4. An optical fiber production pulling apparatus according to claim 1, wherein: the horizontal slide rail of installing on the mount, on drive wheel mounting panel and the driven wheel mounting panel, install respectively with slide rail sliding fit's slider.

5. An optical fiber production pulling apparatus according to claim 1, wherein: the driven wheel mounting plate is provided with a wheel shaft, and the driven wheel is rotatably mounted on the wheel shaft through a bearing.

6. An optical fiber production pulling apparatus according to claim 2, wherein: the guider comprises a fixed seat and two upper guide rods arranged on the fixed seat in parallel, the two upper guide rods are horizontally arranged, and a guide gap is formed between the two upper guide rods.

7. An optical fiber production pulling apparatus according to claim 2, wherein: the positioning lower guide pipe is arranged on a positioning plate, the positioning plate is arranged on a fixing plate through a connecting piece, and the fixing plate is arranged on a fixing frame.

8. An optical fiber production pulling apparatus according to claim 7, wherein: the fixing plate is horizontally provided with a long hole for connection, and the fixing plate is installed and fixed on the fixing frame through an installation piece penetrating through the long hole for connection.

9. A method of fiber-assisted drawing using the apparatus of claim 1, comprising the steps of:

the optical fiber passes through a guider in the auxiliary positioning device and extends out through the positioning lower guide pipe;

the optical fiber is clamped by the driving wheel and the driven wheel and rotates along with the driving wheel, so that the driving wheel and the driven wheel form a downward pulling acting force on the optical fiber;

judging the change trend of the diameter of the optical fiber through the change of the clamping acting force of the driving wheel and the driven wheel on the optical fiber, and feeding back the pressure value of the optical fiber of the driving wheel and/or the driven wheel to a controller in real time;

the controller controls the spacing adjusting device to act, the spacing between the driving wheel and the driven wheel is adjusted adaptively, and the situation that the clamping force of the optical fiber of the driving wheel and the driven wheel tends to be constant is guaranteed.

Technical Field

The invention belongs to the technical field of optical fiber production and manufacturing equipment, and particularly relates to optical fiber production traction equipment and an auxiliary traction method.

Background

In the production process of the optical fiber, when the optical fiber is initially melted and drawn, personnel are required to downwards pull the optical fiber to the position near the position of the coating device from the outlet of the extension pipe at the bottom of the drawing furnace, the staff continuously downwards pull the optical fiber in the process, and after a period of time, the optical fiber passes through the coating device die to be produced until the diameter of the optical fiber meets the requirements before production. Because optic fibre itself is breakable, personnel continuously pull the in-process atress uneven, cause optic fibre fracture very easily, in case optic fibre fracture, if the staff does not in time pull again, optic fibre will be at the intraductal loopy winding of stove bottom extension, not only cause the waste, can cause stifled stove problem to take place when serious. Therefore, it is necessary to design a device capable of continuously assisting in pulling the optical fiber.

Disclosure of Invention

In view of the above, the present invention provides an optical fiber production pulling apparatus and an auxiliary pulling method, which are provided to overcome the defects in the prior art.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

an optical fiber production traction device comprises a driving wheel assembly and a driven wheel assembly which are correspondingly arranged on the outer side of a fixed frame; the driving wheel assembly and the driven wheel assembly are both arranged on the fixed frame in a sliding manner, and an auxiliary positioning device is arranged on the fixed frame between the driving wheel assembly and the driven wheel assembly; a first position adjusting assembly is arranged on the fixed frame corresponding to the driving wheel assembly, a second position adjusting assembly is arranged on the fixed frame corresponding to the driven wheel assembly, and a distance adjusting device is arranged between the driving wheel assembly and the driven wheel assembly; the auxiliary positioning device comprises a positioning lower guide pipe and a guider above the positioning lower guide pipe, and the optical fiber is guided by the guider to enter the traction equipment and then penetrate out of the positioning lower guide pipe through the driving wheel assembly and the driven wheel assembly to be drawn to move.

Further, the driving wheel assembly comprises a driving wheel mounting plate and a driving wheel rotatably mounted on the driving wheel mounting plate, and the driving wheel is driven to rotate by the driving mechanism; the driven wheel assembly comprises a driven wheel mounting plate and a driven wheel rotatably mounted on the driven wheel mounting plate.

Further, the distance adjusting device comprises a driving cylinder between the driving wheel mounting plate and the driven wheel mounting plate.

Further, the driving cylinder adopts an electric cylinder, an air cylinder or a hydraulic cylinder.

Further, the mount is the horizontally install the slide rail, on drive wheel mounting panel and the driven wheel mounting panel, install respectively with slide rail sliding fit's slider.

Further, the driving mechanism adopts a servo motor.

Furthermore, a wheel shaft is installed on the driven wheel installation plate, and the driven wheel is rotatably installed on the wheel shaft through a bearing.

Furthermore, the guider comprises a fixed seat and two upper guide rods which are arranged on the fixed seat in parallel, the two upper guide rods are both horizontally arranged, and a guide gap is formed between the two upper guide rods.

Further, the positioning lower guide pipe is arranged on a positioning plate, the positioning plate is arranged on a fixing plate through a connecting piece, and the fixing plate is arranged on a fixing frame.

Furthermore, the fixing plate is horizontally provided with a long hole for connection, and the fixing plate is installed and fixed on the fixing frame through an installation piece arranged in the long hole for connection in a penetrating mode.

A method for carrying out fiber-assisted traction by using the equipment comprises the following steps:

the optical fiber penetrates through the guider and then extends out of the positioning lower guide pipe, and the driving wheel of the driving wheel assembly and the driven wheel of the driven wheel assembly keep clamping the optical fiber and rotate along with the driving wheel, so that the driving wheel and the driven wheel form a downward pulling effect on the optical fiber;

the change trend of the diameter of the optical fiber is judged by changing the clamping acting force of the driving wheel and the driven wheel to the optical fiber, and the pressure value is fed back to a controller in real time;

the controller controls the distance between the driving wheel and the driven wheel to be adaptively adjusted, so that the clamping force of the driving wheel and the driven wheel to the optical fiber tends to a constant value, and the optical fiber is prevented from being damaged.

Compared with the prior art, the invention has the following advantages:

the optical fiber auxiliary traction equipment provided by the invention can replace manual traction operation in the process of drawing waste optical fibers, the distance between the driving wheel component and the driven wheel component can be adjusted as required to adapt to production requirements, the optical fibers are guided in the forming direction through the guider and the positioning lower guide pipe, the optical fibers are prevented from being separated from the surfaces of the driving wheel and the driven wheel, the automation degree is high, the labor intensity and the personnel error rate can be reduced, and the integral working efficiency can be greatly improved while the optical fibers are effectively prevented from being broken.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:

FIG. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the backside structure of FIG. 1;

FIG. 3 is a schematic perspective view of the present invention;

FIG. 4 is a schematic view of a driving wheel assembly in an exploded state according to an embodiment of the present invention;

FIG. 5 is a schematic view of a driven wheel assembly in an exploded view in accordance with an embodiment of the present invention;

fig. 6 is a schematic view of the fixing plate with the auxiliary positioning device installed thereon according to the invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.

An optical fiber production traction device is shown in fig. 1 to 6, and comprises a driving wheel assembly 2 and a driven wheel assembly 3 which are correspondingly arranged on the outer side of a fixed frame 1; the driving wheel assembly and the driven wheel assembly are both arranged on the fixed frame in a sliding manner, and an auxiliary positioning device 4 is arranged on the fixed frame between the driving wheel assembly and the driven wheel assembly; for example, a slide rail 32 is horizontally mounted on the fixed frame, and a slide block 33 slidably engaged with the slide rail is respectively mounted on the driving wheel mounting plate and the driven wheel mounting plate.

A first position adjusting assembly 5 is arranged on the fixed frame corresponding to the driving wheel assembly, a second position adjusting assembly 6 is arranged on the fixed frame corresponding to the driven wheel assembly, and a distance adjusting device 7 is arranged between the driving wheel assembly and the driven wheel assembly;

the auxiliary positioning device comprises a positioning lower guide pipe 8 and a guider 9 above the positioning lower guide pipe, and the optical fiber is guided by the guider to enter the traction equipment and then penetrate out of the positioning lower guide pipe through the driving wheel assembly and the driven wheel assembly to be drawn to move. After the waste fibers extend out of the positioning lower guide pipe, the waste fibers are aligned by the waste fiber collecting barrel for collecting and processing, and the subsequent collecting and processing process is not in the scope of the invention creation and discussion and is not repeated here.

The driving wheel assembly comprises a driving wheel mounting plate 10 and a driving wheel 11 rotatably mounted on the driving wheel mounting plate, and the driving wheel is driven to rotate by a driving mechanism 12; the driven wheel assembly includes a driven wheel mounting plate 13, and a driven wheel 14 rotatably mounted on the driven wheel mounting plate. When the structure is designed, the outer edges of the driving wheel and the driven wheel can be provided with grooves along the circumferential direction, when optical fiber traction is carried out, the grooves can limit the optical fiber to prevent the optical fiber from moving, and limit the optical fiber together with the guider and the positioning lower guide pipe to ensure the stability of optical fiber traction.

Preferably, the driving mechanism adopts a servo motor, the speed is adjustable, the servo motor is installed on a driving wheel installation plate, the driving wheel is rotatably installed on the driving wheel installation plate (through a bearing), and generally, a tensioning sleeve 31 can be adopted to connect the driving wheel and an output shaft of the servo motor. The output shaft of the servo motor is connected with the driving wheel, so that the driving wheel is driven to rotate at a required speed after the servo motor is started. Generally, the driving wheel and the driven wheel are made of aluminum alloy materials, the wheel surface is made of rubber materials, when the driving wheel and the driven wheel are clamped and rolled, large extrusion force cannot be generated on optical fibers, and the optical fibers are prevented from being broken. The wheel shaft 23 can be arranged on the driven wheel mounting plate, the driven wheel is rotatably arranged on the wheel shaft through a bearing 24, and the driving wheel can be assisted to clamp and drive the optical fiber to move in the optical fiber traction process.

The following is an improvement of a method for fiber-assisted traction using the above apparatus:

the optical fiber penetrates through the guider and then extends out of the positioning lower guide pipe, the driving wheel of the driving wheel assembly and the driven wheel of the driven wheel assembly keep clamping the optical fiber and rotate along with the driving wheel, and friction force is generated between the driving wheel (and the driven wheel) and the optical fiber, so that the driving wheel and the driven wheel form acting force for pulling the optical fiber downwards;

the change trend of the diameter of the optical fiber is judged by changing the clamping acting force of the driving wheel and the driven wheel to the optical fiber, and the pressure value is fed back to a controller in real time;

the controller controls the distance between the driving wheel and the driven wheel to be adaptively adjusted, so that the optical fiber clamping force of the driving wheel and the driven wheel is always in a certain constant range, and the phenomenon that the optical fiber is damaged due to overlarge optical fiber clamping force or the optical fiber is slipped due to undersize clamping force is avoided.

In an alternative embodiment, the distance adjusting device comprises a driving cylinder 15 arranged between the driving wheel mounting plate and the driven wheel mounting plate, and the driving wheel assembly and the driven wheel assembly are driven to be folded towards the center or unfolded outwards along the direction of the sliding rail by the contraction or extension action of an extension rod of the driving cylinder, so that the driving wheel and the driven wheel form effective clamping on the optical fiber, and the optical fiber can be pulled to extend out of the positioning downcomer under the condition that the driving wheel rotates.

Because the optical fiber external diameter that melts the in-process of drawing a silk tentatively has inhomogeneous condition, the unable self-adaptation optical fiber external diameter of conventional draw gear changes, and the clamp force appears too big or undersize, therefore, in the scheme of further improvement, set up pressure sensor on drive wheel and/or follow driving wheel, pressure sensor connects a controller, pressure sensor's pressure value feeds back to the controller in real time, by controller control actuating cylinder flexible action, the self-adaptation changes the clamp force to optical fiber, guarantee can press from both sides tight optical fiber, make drive wheel and driven wheel drive the optic fibre removal to the frictional force on optical fiber surface, can also furthest avoid the optic fibre to break.

It should be noted that the controller may be a single chip microcomputer commonly used in the prior art, and the pressure sensor may be disposed on the outer circumferential surface of the driving wheel and/or the driven wheel, for example, a patch type pressure sensor is used. Of course, the skilled person can select the type and installation form of the sensor according to the needs, as long as the clamping force variation of the driving wheel and the driven wheel to the optical fiber can be detected. When the pressure value fed back by the pressure sensor is larger than a set value, the controller controls the extension rod of the driving cylinder to extend outwards for adjustment, the distance between the driving wheel and the driven wheel is finely adjusted, and the distance between the driving wheel and the driven wheel is increased, so that the clamping force of the two wheels on the optical fiber is reduced, and the optical fiber returns to the range of normal clamping acting force. On the contrary, when the clamping acting force detected by the pressure sensor is smaller than the set value, the distance between the driving wheel and the driven wheel is reduced through the controller.

When the driving mechanism adopts a servo motor, the servo motor can be electrically connected with the controller, when the diameter of the optical fiber changes, the controller can send an instruction to control the speed of the servo motor to adjust after receiving the signal feedback of the pressure sensor, for example, when the pressure value fed back by the pressure sensor is reduced, the diameter of the optical fiber is reduced, at the moment, the controller sends an instruction to reduce the rotating speed of the servo motor, further, the rotating speed of the driving wheel is reduced, the purpose of reducing the moving speed of the traction optical fiber is finally achieved, and the optical fiber is prevented from being broken to the maximum extent. On the contrary, when the pressure value fed back by the pressure sensor is increased, the diameter of the optical fiber is increased, at the moment, the controller sends an instruction to control the interval adjusting device to act, and simultaneously controls the rotating speed of the driving wheel to increase. Compared with the traditional traction tool, the auxiliary traction equipment can be used for earlier intervention, namely, the auxiliary traction equipment can be used for traction movement when the optical fiber basically meets the traction requirement, so that the production efficiency is effectively improved, and meanwhile, the optical fiber is prevented from being broken to the maximum extent.

The first position adjusting assembly comprises a first jacking seat 16 arranged on the driving wheel mounting plate and a first adjusting seat 17 arranged on the fixing frame corresponding to the first jacking seat, a first adjusting rod 18 is arranged on the first adjusting seat in a threaded mode, the second position adjusting assembly comprises a second jacking seat 19 arranged on the driven wheel mounting plate and a second adjusting seat 20 arranged on the fixing frame corresponding to the second jacking seat, and a second adjusting rod 21 is arranged on the second adjusting seat in a threaded mode. The first adjusting rod and the second adjusting rod can both adopt full-thread structures. The first adjusting rod and the second adjusting rod are screwed, the optical fiber clamping channel formed between the driving wheel and the driven wheel is aligned and positioned with the lower guide pipe, the distance between the driving wheel and the driven wheel (the width of the optical fiber clamping channel formed between the driving wheel and the driven wheel) approximately meets the drawing requirement of the optical fiber, and fine adjustment can be carried out by the distance adjusting device.

Of course, it is also possible to fix the mounting plate on one side and adjust the position of the mounting plate on the other side only. Such as: the tail end of the first adjusting rod/the second adjusting rod can be screwed on the first adjusting seat/the second adjusting seat, after the position of the driving wheel mounting plate/the driven wheel mounting plate is adjusted, the driving wheel mounting plate/the driven wheel mounting plate is fixed in position through nut locking, and the driven wheel mounting plate/the driving wheel mounting plate on the other side can be driven by the driving cylinder to adjust the position.

The driving cylinder adopts an electric cylinder, an air cylinder or a hydraulic cylinder. The driven wheel assembly and the driving wheel assembly are opened and closed by matching the driving cylinder with the sliding rail. For example, the mounting blocks 22 can be arranged on both the driving wheel mounting plate and the driven wheel mounting plate, the cylinder barrel of the driving cylinder is fixedly mounted on one mounting block, and the tail end of the extension rod of the driving cylinder is fixedly mounted on the other mounting block.

The guider comprises a fixed seat 25 and two upper guide rods 26 which are arranged on the fixed seat in parallel, the two upper guide rods are arranged horizontally, a guide gap is formed between the two upper guide rods, the upper guide rods are used for guiding to prevent the optical fibers from being separated from the wheel surface, the upper guide rods are preferably made of ceramic materials, the smooth friction resistance of the ceramic surface is small, and the optical fibers are prevented from being broken by scratching. It should be noted that, according to actual needs, the fixing base of the guider can be installed on the fixing frame, and also can be installed on the driven wheel mounting plate, as long as the guiding function can be realized.

The above-mentioned positioning downcomers are mounted on a positioning plate 27 which is mounted by means of a connecting piece on a fixed plate 28 mounted on a fixed frame. The fixing plate is horizontally provided with a long hole 29 for connection, and the fixing plate is fixed to the fixing frame by an attachment member 30 inserted into the long hole for connection. The mounting member may be a bolt. The mounting position of the fixing plate can be adjusted by the long hole for connection, so that the mounting position of the positioning lower guide pipe can be matched with the guider and matched with the fiber outlet direction and position of the wire drawing furnace.

It should be pointed out that the locating piece can be arranged to the fixed plate both sides, or directly regard as the locating surface with the terminal surface of fixed plate both sides, form spacingly to drive wheel mounting panel and follow driving wheel mounting panel, avoid drive wheel subassembly and follow the driving wheel subassembly and move the dislocation.

After the optical fiber perform is placed into the drawing furnace, the drawing furnace heats up the taper head of the induction heating perform, after a period of time, the taper head of the perform melts and falls, and the outlet of the extending pipe at the bottom of the furnace falls. The cone head melted at the initial stage is large and uneven, and the worker cuts the cone through a corresponding tool at the moment. When the diameter of the optical fiber coming out of the furnace extension pipe basically meets the requirements of the traction process, the optical fiber can fall down under the action of gravity, and an operator sequentially penetrates the optical fiber through the diameter measuring instrument and the cooling pipe to reach the auxiliary traction device. Compared with the traditional traction tool, the equipment can be inserted earlier, and the production efficiency is effectively improved.

The optical fiber passes through the guide gap between the two upper guide rods and extends out through the positioning lower guide pipe, so that the optical fiber can be prevented from being separated from the wheel surface in the clamping process. The driving wheel assembly and the driven wheel assembly are driven to fold towards the center along the direction of the sliding rail through the distance adjusting device, so that the driven wheel and the driving wheel clamp the optical fiber, meanwhile, the servo driver gives out an initial speed to drive the driving wheel to rotate, the driven wheel and the driving wheel roll downwards in opposite directions, the optical fiber extends out along the positioning lower guide pipe, an operator puts waste optical fiber into a collecting barrel, after the optical fiber meets the process requirements, the driving wheel and the driven wheel of the device are loosened, and the optical fiber penetrates through a coating device die to carry out the next operation.

The optical fiber auxiliary traction equipment provided by the invention can replace manual traction operation in the process of drawing waste optical fibers, the distance between the driving wheel component and the driven wheel component can be adjusted as required to adapt to production requirements, the optical fibers are guided in the forming direction through the guider and the positioning lower guide pipe, the optical fibers are prevented from being separated from the surfaces of the driving wheel and the driven wheel, the automation degree is high, the labor intensity and the personnel error rate can be reduced, and the integral working efficiency can be greatly improved while the optical fibers are effectively prevented from being broken.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.