KR101612937B1 - Winder for rapid alignment of microtube - Google Patents

Abstract

 A high-speed automatic aligning and winding machine for a micro-tube according to the present invention comprises a winding unit (100) having a bobbin (110) around which an extruded microtube (10) is wound; A traverse unit 200 for adjusting the position of the microtube 10 supplied in a state of being connected to the winding unit 100; And a tension adjusting unit 300 that adjusts the tension of the microtube 10 supplied to the traverse unit 200 to a predetermined level or less. The traverse unit 200 includes a traverse rolling unit 210, A traverse conveying unit 220 that enables the traverse rolling unit 210 to move and a laser displacement sensor that detects the position of the microtubes 10 moving through the traverse rolling unit 210 in real time to perform feedback control, Sensor 240 as shown in FIG.

Description

{Winder for rapid alignment of microtube}

The present invention relates to a high-speed alignment winder for improving the winding performance of a microtube, and more particularly, to a high-speed alignment winder for improving the winding efficiency of a microtube accommodating the optical cable at the time of pneumatic installation of the optical cable.

According to the plans for building a high-speed information communication network, various information-oriented businesses for the advancement of the domestic communication network and the demand for the communication service are leading to an explosion of the Internet population through the high-speed Internet.

Fiber optic cable is made by bundling optical fiber into several strands, and plays a very important role in the formation of wired and wireless transmission network due to rapid development of information and communication industry. Since the 1980s, fiber-optic cable has played a very important role as a key industry in the information industry, leading the multimedia age by mass commercialization of optical communication, and it is the basis of the network of the information and communication industry along with the optical transmission exchange as the information transmission medium of the communication network .

FTTH based on fiber optic cable will provide broadband Internet service with more than 100 megabytes of internet, as well as broadcasting and communication convergence services such as video on demand, bidirectional data communication (IP TV) and internet phone.

The micro duct is composed of a tube having an inner surface of a smooth type or a lip type and is used for pneumatic installation of an optical cable. The air blowing is performed by using compressed air generated by a compressor and blowing equipment, Refers to a technique for installing an air-blown cable or an air-blown fiber in a tube.

The microtube is produced by extruding an HDPE material as a passage through which an optical cable passes. Generally, the microtube has a diameter ranging from 5 mm to 14 mm. On the other hand, the microtube is a product produced by extruding the HDPE material, and the tube which is continuously formed from the extruder is wound around the bobbin and wrapped. Micro tube is the most important thing to maintain the roundness of tube inner diameter because it is a product that needs to pass through optical fiber. Therefore, roundness deformation of tube inner diameter due to tension and external pressure during alignment winding becomes an important parameter of production quality.

The extruded microtube wrapping machine is a device that winds the extruded tube, wire, and cable onto a bobbin and winds it at a constant pitch. In the textile industry, high-priced equipment using a high-speed, multi-axis winder is used . On the other hand, in the wire and hose industry, low-cost equipment using mechanical winding technology is being used.

Microtube can not be wound more than a certain tension due to the nature of the product, which emphasizes the roundness of the inner diameter. Therefore, it is required to develop a special winding machine for this purpose.

In the conventional mechanical winding method, it is impossible to control the winding speed, so that it is not possible to accurately grasp the positions of both ends of the bobbin. In addition, although it is detected by the position sensor of the traverse for the end position control, there is a problem that the position accuracy is insufficient.

In addition, in the conventional winding machine, it is difficult to adjust the tension due to the long length of the microtube coming from the extruder, and the variation of the tube entry angle from the traverse to the bobbin is large, so that there is a large difference in tension. In addition, due to an increase in the thickness of the wound microtubes, a problem arises in the case of conventional wooden bobbins that the wings are widened, which causes problems in alignment winding.

Patent Document 10-0623494 discloses a method for winding waste vinyl produced in the agricultural field in a roll form using a winder and winding the wound vinyl roll from the winding portion of the winder Thereby providing a winder capable of being conveniently separated.

In the above-mentioned prior art, it is possible to prevent impurities such as soil, gravel, wood chips and the like from being collected together with the waste vinyl, and at the same time, a structure for allowing the waste vinyl to be conveniently wound in the form of a roll However, due to the characteristics of a microtube product to be passed through an optical fiber, there is no description about a structure that can cope with the problem of roundness deformation of the inner diameter of the tube due to tension and external pressure during alignment winding.

(Patent Document 1) KR10-0623494 B

The automatic fast aligning winder for a micro tube according to the present invention has a function of precisely aligning and winding by using a laser displacement sensor in a process of winding an extrusion cooled micro tube on a bobbin, and a high speed production capability. In addition, the present invention provides a storage force fast sorting and winding device for maintaining the roundness of the microtube through feedback control so that the control tension is controlled within a predetermined range by measuring the tension of the microtube produced by the motion control technique according to the extrusion tension I want to.

The present invention can achieve a world-class production rate of 100 (M / min) or more in the microtubule production process.

A high-speed automatic aligning and winding machine for a micro-tube according to the present invention comprises a winding unit (100) having a bobbin (110) around which an extruded microtube (10) is wound; A traverse unit 200 for adjusting the position of the microtube 10 supplied in a state of being connected to the winding unit 100; And a tension adjusting unit 300 that adjusts the tension of the microtube 10 supplied to the traverse unit 200 to a predetermined level or less. The traverse unit 200 includes a traverse rolling unit 210, A traverse conveying unit 220 that enables the traverse rolling unit 210 to move and a laser displacement sensor that detects the position of the microtubes 10 moving through the traverse rolling unit 210 in real time to perform feedback control, Sensor 240 as shown in FIG.

The laser displacement sensor 240 includes a laser irradiation unit 241, a laser receiving unit 242 disposed at a predetermined distance from the laser irradiation unit 241, and a laser irradiation unit 241 and a laser receiving unit 242 And a sensor frame 243.

The alignment winder further includes a motion controller 600 electrically connected to the winding unit 100, the traverse unit 200 and the tension control unit 300. The motion controller 600 controls the tension control And controls the rotation speed of the bobbin 110 and the conveyance speed of the traverse unit 200 based on the tension measured through the unit 300. [

The tension adjusting unit 300 includes a main frame 310, a tension adjusting roller 320 moving up and down on the main frame 310 to support the microtube 10, The motion controller 600 senses the height of the tension adjusting roller 320 and senses the height of the tension adjusting roller 320 in the bobbin 110. [ The feeding speed V1 of the microtube 10 inserted into the tension adjusting unit 300 is compared with the speed V2 wound around the bobbin 110 by adjusting the speed at which the microtube 10 is wound Thereby adjusting the tension of the microtube 10.

The winding unit 100 includes a bobbin 110, a winding server motor 120 for providing power to the bobbin 110, a first fixing part 140 disposed at one side of the bobbin 110, A second fixing part 150 disposed on the other side of the bobbin 110 and a timing belt 122 transmitting power to any one of the fixing parts 140 and 150, Moves along the axial direction of the bobbin (110) and is bound to the bobbin (110).

The high-speed alignment winder according to the present invention has a high-speed production capability by precisely aligning and winding the extrusion-cooled microtube by using a laser displacement sensor in the course of winding the microtube on the bobbin.

Also, the present invention measures the tension of a microtube produced by the motion control technique according to the extrusion tension, and performs feedback control so that the control tension is controlled within a predetermined range of 1 (kgf). This gives a production speed of over 100 (M / min) and a maximum winding length of over 6,000M.

Conventionally, the aligning winder used in the textile industry and the pipe / wire / hose industry does not need the function of maintaining the roundness, and a general alignment winding function is sufficient. In other words, the alignment winder used in the textile industry uses high-speed / high-performance equipment, and the pipe-wire / hose industry uses a mechanical ball-treasure method to minimize tension control elements. However, Therefore, there is a problem in that the conventional method is inadequate, so that it is difficult to align and rewind the microtube. The present invention overcomes this problem.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall configuration diagram of a high-speed alignment take-
2 is a top plan view of the fast alignment winder,
3 is a side view of the fast aligning winder as seen from the left side,
4 is a view showing the arrangement of a winding unit and a traverse unit constituting the present invention,
5 is a view showing a specific arrangement of a roller module and a transfer module constituting a traverse unit,
6 is a view showing a tension adjusting unit,
7 is a view showing an operating structure of a bobbin constituting a winding unit,
8 is a view showing another embodiment of the roller module constituting the traverse unit,
9 is a view showing a left-right transfer mechanism of the traverse unit for aligning and winding the microtube,
10 is a view showing a structure for adjusting the tension of microtubes through a tension adjusting unit, and Fig.
11 is a block diagram illustrating a concept of controlling a winding unit, a traverse unit, and a tension control unit through a motion controller.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It will be apparent to those skilled in the art that the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know. Wherein like reference numerals refer to like elements throughout.

It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals even though they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

Hereinafter, a high-speed automatic alignment winder for a micro-tube according to the present invention will be described with reference to FIGS. 1 to 11. FIG.

The fast aligning winder for a micro tube according to the present invention comprises a winding unit 100, a traverse unit 200 for adjusting the position of a microtube to be fed in a state of being directly connected to the winding unit 100, An unfolding unit 500 for feeding a wound microtube; a tensioning unit 300 for adjusting the overall tension of the tube to a predetermined level or lower; And a motion controller 600 which is electrically connected to the C / V unit 400 and the winding unit 100.

The winding unit 100 has a function of winding the microtubes 10 on a cylindrical bobbin 110.

7, the winding unit 100 includes a bobbin 110 to which the micro tube 10 is directly wound, a winding server motor 120 that provides rotational power to the bobbin 110, A first fixing part 140 disposed on one side of the bobbin 110, a second fixing part 150 disposed on the other side of the bobbin 110, a timing belt 122 for transmitting power to the winding server motor 120, And a winding frame 130 on which the fixing part 120 and the fixing parts 140 and 150 are mounted.

The first fixing part 140 includes a first fixing bar 142 which is movable along one axial direction of the bobbin 110 and is fitted to the bobbin 110 in a close contact therewith, (Not shown). The second fixing part 150 includes a second fixing rod 152 which is movable along the axial direction at the other side of the bobbin 110 and is fitted to the bobbin 110 in close contact with the bobbin 110, And a second motor (154) for providing the second motor (154).

In this state, the motors 144 and 154 are driven to bring the fixing rods 142 and 152 into close contact with the both sides of the bobbin 110, and then the rotational force is applied to the bobbin 110 through the winding server motor 120. Meanwhile, the height of the bobbin 110 can be adjusted by a separate lifting / lowering means in a state where the fixing portions 140 and 150 are coupled to the bobbin 110.

The traverse unit 200 serves to transfer the microtubes 10 to the bobbin 110 for alignment winding.

5, the traverse unit 200 according to one embodiment includes a traverse rolling unit 210, a traverse conveying unit 220 that enables the traverse rolling unit 210 to be moved, and a traverse rolling unit And a laser displacement sensor 240 for sensing in real time the position of the microtubes 10 moving through the microtubes 210.

The traverse conveyance unit 220 includes a conveyance rail 221 formed at the upper end of the unit body and a conveyance plate 222 slidable along the conveyance rail 221. The traverse rolling part 210 is fixedly mounted on the transfer plate 222. [

The laser displacement sensor 240 is fixedly mounted on the transfer plate 222 of the traverse conveyance unit 220 and is disposed in a spaced-apart position in front of the traverse rolling unit 210.

The laser displacement sensor 240 includes a laser irradiation unit 241, a laser receiving unit 242 disposed at a predetermined distance from the laser irradiation unit 241, a sensor frame 243 to which the laser irradiation unit 241 and the laser receiving unit 242 are fixed, . The microtube 10 is transferred through the space between the laser irradiation unit 241 and the laser reception unit 242 during the process of supplying the microtube 10 through the traverse unit 200. Here, The extent to which the microtube 10 is deflected can be determined according to the degree to which the optical medium such as a laser irradiated toward the laser receiving unit 242 senses the microtube 10.

That is, the microtube 10 supplied to the bobbin 110 through the traverse conveyance unit 220 must be maintained at a constant conveying speed of the traverse conveyance unit 220 in order to be closely wound on the bobbin 110, The sensor 240 separates the micro tube 10 from the traverse rolling part 210 and blocks the occurrence of problems such as a change in the position of the micro tube 10 during the winding process. Specifically, when the microtube 10 is transferred between the laser irradiation unit 241 and the laser reception unit 242, the alarm is sounded or the operation is stopped when the deviation exceeds a predetermined tolerance.

The traverse rolling part 210 is intended to apply a traverse arm to improve the alignment winding performance according to the winding thickness of the microtube 10 wound around the bobbin 110. For this purpose, the winding thickness of the bobbin 110, Thereby keeping the entry angle of the motor 10 constant.

The traverse rolling section 210 includes a front roller 211, a rear roller 213 disposed on the rear upper side of the front roller 211 and a guide roller 212 disposed between the front roller 211 and the rear roller 213 ). The front roller 211 and the rear roller 213 function to prevent vertical vibration of the microtube 10 to be conveyed, and each of the driving shafts is disposed parallel to the paper surface. That is, the microtube 10 to be conveyed is conveyed while being in contact with the upper end of the driven front roller 211 and the lower end of the rear roller 213. Here, the front roller 211 and the rear roller 213 rotate in opposite directions.

The guide rollers 212 serve to prevent lateral vibration of the microtube 10 being conveyed, and the pair of rollers are spaced apart from each other in the direction perpendicular to the paper surface. On the other hand, a shock absorbing structure such as a spring or a hydraulic buffer structure is adopted as a damper capable of reducing impact due to external force and vibration applied from the microtube 10 to the pair of guide rollers 212 and the front and rear rollers 211 and 213 .

The traverse conveyance unit 220 is intended to implement a left and right conveying mechanism for aligning and winding the microtube 10 wound around the bobbin 110. The traverse conveyance unit 220 is provided with a traverse servo motor 230 and a ball screw By controlling the distance, the minimum pitch can be maintained at about 0.1 mm.

That is, the microtube 10 transported from the tension adjusting unit 300 is transported by the traverse transporting unit 220 along the axial direction of the bobbin 110 at left and right intervals, It becomes a state that can be wound. In addition, it can be wound in the form of stacked layers like a thread.

Referring to FIGS. 8 and 9, the traverse unit 200 according to another embodiment includes a traverse conveying unit 220 that enables the movement of the traverse rolling unit 210 'and the traverse rolling unit 210'.

The traverse rolling part 210 'is intended to apply a traverse arm to improve the alignment winding performance according to the winding thickness of the microtube 10 wound around the bobbin 110. For this purpose, So that the entering angle of the tube 10 is kept constant.

The traverse rolling part 210 'includes an arm roller 211', an arm 212 ', one end of which is rotatably coupled to the arm roller 211', and an arm 212 ' And an arm hinge 213 'disposed on the base 220.

The tension adjusting unit 300 serves to adjust the tension between the winding steps after the extrusion of the microtube 10.

6 and 10, the tension adjusting unit 300 includes a main frame 310, a tension adjusting roller 320 that moves up and down on the main frame 310 and supports the microtube 10, A supporting roller 330 fixed on the main frame 310 and a tension detector 340 for sensing a tension force of the microtube 10 at the tension adjusting roller 320.

The tension adjusting unit 300 may further include a tension adjusting arm portion 350 connected to the tension adjusting roller portion 320 as another embodiment.

The tension adjusting arm unit 350 includes an arm frame 351 fixed to the lower end of the supporting roller unit 330, a tension arm hinge 352 fixed to the arm frame 351, and a tension arm hinge 352 rotatably And a tension arm 353 coupled thereto.

In the present invention, the winding tension of the microtube 10 is adjusted by setting the maximum tension of 1 Kgf. To this end, the winding speed is controlled by measuring the tension of the microtube 10 passing through the tension control unit 300.

The control process through the tension measurement process is as follows.

The tension can be measured using a displacement sensor built in the tension sensing unit 340 or the tension can be controlled by adjusting the angle of the tension arm 353 of the tension adjusting arm unit 350. [ In this case, it is possible to control the height of the tension adjusting roller 320 or to control the driving of the tension adjusting servo motor 360 to adjust the rotation angle of the tension arm 353. Here, the adjustment of the angle of the tension arm 353 is made possible by the measurement of the rotation angle through the encoder coupled to the tension arm hinge 352.

Hereinafter, the process of adjusting the tension through the process of comparing the feed speed V1 of the microtube 10 inserted in the unwinding unit 500 and the speed V2 wound around the bobbin 110 will be described.

When the speed V2 wound around the bobbin 110 is higher than the infeed speed V1 of the microtube 10, the height of the tension adjusting roller 320 moves upward, and the motion controller 600 The rotation speed of the bobbin 110 is reduced by detecting the displacement of the bobbin 110 through the displacement sensor built in the tension detector 340 so that the speed V2 wound around the bobbin 110 is lowered.

On the other hand, when the speed V2 wound around the bobbin 110 is slower than the infeed speed V1 of the microtube 10, the height of the tension adjusting roller 320 moves downward, and the motion controller 600 The displacement of the bobbin 110 is increased by increasing the speed of the bobbin 110 by detecting the displacement of the bobbin 110 through the displacement sensor built in the tension detector 340. [

It can be seen that the height of the tension adjusting roller 320 varies in the vertical direction according to the speed V2 wound around the bobbin 110. Here, when the highest point H1 and the lowest point H2 at which the tension adjusting roller portion 320 can move are designated, it is preferable to move in the vertical direction with maintaining the required interval A between H1 and H2 .

In order to maintain the required section A between H1 and H2, the winding speed of the winding unit 100 is controlled by controlling the rotation speed of the bobbin 110, thereby improving the winding quality of the micro tube 10. That is, as the range of the demand section A becomes narrower, the tension section approaches the optimum tension section, thereby improving the tension control technology and quality.

Also, the capacity of the server motor 120 is calculated and applied according to the diameter of the micro tube 10, and it is possible to prevent the micro tube 10 from slacking or breaking through the allowable torque control of the server motor 120.

Referring to FIG. 11, in the present invention, the motion controller 600 can control the driving of the winding unit 100, the traverse unit 200, and the tension adjusting unit 300. That is, the units 100, 200, and 300 include drivers 125, 235, and 365 connected to the servomotors 120, 230, and 360 and the servomotors 120, 230 and 360, respectively.

As described above, the three driving units constituting the control circuit through the servomotors 120, 230 and 360, the drivers 125, 235 and 365 and the motion controller 600 are constituted by servo motors to perform the synchronous control. In addition, tension measurement feedback is applied for tension control.

In the present invention, the winding speed can be controlled according to the extrusion speed of the micro tube 10 for alignment winding control, and the alignment winding algorithm can be applied.

The winding speed control according to the extrusion speed can be performed by obtaining the bobbin rotation speed and controlling the winding speed based on the speed and thickness setting method.

The bobbin rotation speed (N) is defined by the following equation.

(여기서, N : 보빈회전수, D : 보빈직경, V:압출속도)

(Where N: number of bobbin rotations, D: bobbin diameter, V: extrusion speed)

D1 (Winging) is set as the initial diameter of the bobbin, the thickness of the microtube material is set to T, and the average speed V is set. The winding diameter D can be automatically calculated with the lapse of time, thereby controlling the winding speed .

The alignment winding algorithm calculates the traverse distance of the traverse unit 200 on the basis of the size of the bobbin 110 and the outer diameter of the micro tube 10, determines the alignment winding position, and implements an algorithm for winding the wound winding position. That is, a control variable for alignment winding is calculated and an algorithm according to the outer diameter of the microtube is applied.

The high-speed aligning winder according to the present invention has an alignment winding function and a high-speed production capability in consideration of a yield point at the time of extrusion cooling of a microtube, and measures a tensile force of a microtube produced by a motion control technique according to an extrusion tension, (Kgf). ≪ / RTI > This gives a production speed of over 100 (M / min) and a maximum winding length of over 6,000M.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that numerous modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims. And equivalents should also be considered to be within the scope of the present invention.

100: winding unit
200: The Trevus Unit
300: tension adjusting unit
400: winch C / V unit
500: Unwinding unit
600: Motion controller

Claims (5)

A winding unit (100) having a bobbin (110) on which the extruded microtubes (10) are wound;
A traverse unit 200 for adjusting the position of the microtube 10 supplied in a state of being connected to the winding unit 100;
A tension adjusting unit 300 for adjusting the tension of the micro tube 10 supplied to the traverse unit 200 to a predetermined level or less; And
And a motion controller (600) electrically connected to the winding unit (100), the traverse unit (200), and the tension control unit (300)
In the traverse unit 200,
The traverse rolling unit 210, the traverse conveying unit 220 for moving the traverse rolling unit 210 and the microtubes 10 moving through the traverse rolling unit 210 are detected in real time And a laser displacement sensor 240,
The tension adjusting unit (300)
A tension adjusting roller part 320 which moves up and down on the main frame 310 to support the micro tube 10 and a pressing roller part 320 which is pressed by the micro tube 10 at the tension adjusting roller part 320, And a tension detector 340 for detecting a tension,
The motion controller 600 senses the height of the tension adjusting roller unit 320 and adjusts the speed at which the micro tube 10 is wound on the bobbin 110 so as to be supplied to the tension adjusting unit 300 The tension of the micro tube 10 is adjusted by comparing the feed speed V1 of the micro tube 10 with the speed V2 wound around the bobbin 110,
High - speed alignment winder for micro - tubes.
The method according to claim 1,
The laser displacement sensor (240)
And a sensor frame 243 fixed to the laser irradiator 241 and the laser receiver 242. The laser irradiator 241 includes a laser irradiator 242 disposed at a predetermined distance from the laser irradiator 241, This enables position control through real-time feedback,
High - speed alignment winder for micro - tubes.
3. The method of claim 2,
The motion controller 600 controls the rotational speed of the bobbin 110 and the feeding speed of the traverse unit 200 based on the tension measured through the tension adjusting unit 300. [
High - speed alignment winder for micro - tubes.
delete The method according to claim 1,
The winding unit (100)
A winding server motor 120 for providing power to the bobbin 110, a first fixing part 140 disposed on one side of the bobbin 110, and a second fixing part 140 disposed on the other side of the bobbin 110. [ And a timing belt (122) for transmitting power to any one of the fixed portions (150, 150) and the fixed portions (140, 150)
The fixing portions 140 and 150 are moved along the axial direction of the bobbin 110 to be coupled to the bobbin 110,
High - speed alignment winder for micro - tubes.

Images