Wire winding device

Abstract

To provide a wire winding device that calculates the winding diameter of a bobbin in winding the wire onto the bobbin.SOLUTION: The wire winding device includes a bobbin for winding a wire, a winding machine for rotating the bobbin, and a guide roller for guiding the wire to the bobbin. The bobbin moves back and forth relative to the guide roller along the axial direction of the bobbin. The winding device includes a processing device for calculating a winding diameter of the bobbin based on the relative movement speed of the bobbin with respect to the guide roller, the number of rotations of the bobbin, and the winding speed of the wire.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a winding device for a wire. [Background technology]

[0002] Conventionally, techniques relating to winding devices and winding methods for wires such as optical fibers have been developed. For example, Patent Document 1 discloses a winding method for an optical fiber in which the traverse reversal position between the optical fiber and the bobbin is shifted toward the outside of the flange of the bobbin in accordance with an increase in the number of winding layers around the bobbin that winds the wire. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-63381 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the winding method described in Patent Document 1, the traverse reversal position is controlled after the number of winding layers wound on the bobbin has increased, so it takes time for the winding diameter of the bobbin to change, making it difficult to make the winding diameter of the bobbin uniform.

[0005] An object of the present disclosure is to provide a wire winding device that can calculate the winding diameter of a bobbin while the wire is being wound onto the bobbin. [Means for solving the problem]

[0006] a bobbin for winding the wire; a winding machine that rotates the bobbin; a guide roller that guides the wire onto the bobbin, The bobbin reciprocates relative to the guide roller along the axial direction of the bobbin, The winding device is The apparatus further includes a processing device that calculates the winding diameter of the bobbin based on the relative moving speed of the bobbin with respect to the guide roller, the number of rotations of the bobbin, and the winding speed of the wire. [Effects of the Invention]

[0007] According to the present disclosure, the winding diameter of the bobbin can be calculated while the wire is being wound onto the bobbin. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing the overall configuration of a winding device for a wire body according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a view of the winding bobbin shown in FIG. [Figure 3] FIG. 3 is a block diagram showing the configuration of the processing device shown in FIG. [Figure 4] FIG. 4 is a diagram for explaining a method for calculating the winding diameter of the winding bobbin by the arithmetic processing unit of the processing device shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Description of the embodiments of the present disclosure] First, the contents of the embodiments of the present disclosure will be listed and described. The winding device for a wire body according to the present disclosure comprises: (1) a bobbin for winding the wire; a winding machine that rotates the bobbin; a guide roller that guides the wire onto the bobbin, The bobbin reciprocates relative to the guide roller along the axial direction of the bobbin, The winding device is The apparatus further includes a processing device that calculates the winding diameter of the bobbin based on the relative moving speed of the bobbin with respect to the guide roller, the number of rotations of the bobbin, and the winding speed of the wire.

[0010] As described above, by using the relative moving speed of the bobbin with respect to the guide roller, the number of rotations of the bobbin, and the winding speed of the wire, the winding diameter of the bobbin can be calculated during winding of the wire.

[0011] (2) In the winding device for the wire body described in (1) above, The processing device may acquire the number of rotations of the guide roller, and calculate the winding speed of the wire based on the number of rotations of the guide roller.

[0012] For example, the linear speed of the wire on the guide roller can be calculated by multiplying the number of rotations of the guide roller by the circumferential length of the guide roller. In this way, the linear speed of the wire on the guide roller, i.e., the linear speed of the wire immediately before being wound onto the bobbin, can be calculated, so that the winding speed of the wire can be obtained more accurately.

[0013] (3) The winding device for the wire body of (1) above is a capstan disposed upstream of the guide roller in a travel path of the wire, for controlling a travel speed of the wire; The processing device may use the running speed of the wire on the capstan as the winding speed of the wire.

[0014] Here, the filament traveling on the capstan is in close contact with the capstan by the capstan belt or the like, so the filament is less likely to vibrate, etc. Therefore, with the above-described configuration, it is possible to obtain a more stable winding speed for the filament.

[0015] (4) In the winding device for a wire body according to any one of (1) to (3) above, The processing device may control a reversal position of the relative movement of the bobbin with respect to the guide roller based on the newly calculated winding diameter and the winding diameter at the center of the axial direction of the bobbin.

[0016] As described above, the wire winding device according to the present disclosure can calculate the winding diameter of the bobbin while the wire is being wound, and therefore the distribution of the winding diameter in the axial direction of the bobbin can be updated in real time. Therefore, based on the distribution of the winding diameter, it is possible to eliminate bulges or depressions in the wire near the flange of the bobbin and perform control to make the winding diameter of the bobbin more uniform.

[0017] [Details of the embodiments of the present disclosure] Specific examples of a winding device for a wire body according to an embodiment of the present disclosure will be described below with reference to the drawings. Note that the present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope equivalent to the claims. In addition, the scales of the drawings used in the following description have been appropriately changed to make each component recognizable.

[0018] (Overall configuration of winding device) Fig. 1 is a diagram showing the overall configuration of a wire winding device 100 according to an embodiment of the present disclosure. Fig. 2 is a diagram showing the winding bobbin 20 shown in Fig. 1 as viewed from the direction of arrow Y.

[0019] Here, a description will be given of a winding device 100 for an optical fiber 1, which is an example of a wire. As shown in Fig. 1, the winding device 100 includes a supply unit 10, a plurality of capstans 11, a plurality of dancer rollers 12, a plurality of guide rollers 13, a winding motor 14, a first detector 15, a traverse motor 16, a second detector 18, a winding bobbin 20, and a processing device 30.

[0020] In the winding device 100, the optical fiber 1 pulled out from the supply section 10 is wound onto the winding bobbin 20 via a plurality of capstans 11, a plurality of dancer rollers 12, and a plurality of guide rollers 13 that guide the optical fiber 1 to the winding bobbin 20.

[0021] 2, the winding bobbin 20 has a cylindrical body 21 around which the optical fiber 1 is wound, and two disk-shaped flanges 22A and 22B provided on both ends of the body 21. The winding bobbin 20 is driven to rotate by a winding motor (winder) 14 shown in FIG.

[0022] 1, the first detector 15 connected to the rotation shaft of the winding motor 14 detects the rotation speed ft of the winding bobbin 20. When the first detector 15 detects the rotation speed ft of the winding bobbin 20, it outputs data indicating the detected rotation speed ft to the processing device 30. Note that the rotation speed ft of the winding bobbin 20 is controlled by the processing device 30, for example, based on the vertical position of the dancer roller 12, as will be described later.

[0023] The winding bobbin 20 is driven and moved by a traverse motor 16 controlled by the processing device 30. More specifically, the winding bobbin 20 moves back and forth along the axial direction of the winding bobbin 20 at a predetermined traverse speed (movement speed) Vtrv relative to the guide roller 13, as shown in FIG.

[0024] 1 may be connected to a guide roller 13 (hereinafter referred to as "guide roller 13A") located closest to the take-up bobbin 20 in the travel path of the optical fiber 1, instead of being connected to the take-up bobbin 20. In this case, the guide roller 13A is driven by the traverse motor 16 to move along the axial direction of the take-up bobbin 20 at a predetermined traverse speed Vtrv relative to the take-up bobbin 20.

[0025] Further, a second detector 18 that detects the number of rotations of the guide roller 13A is connected to the guide roller 13A. When the second detector 18 detects the number of rotations of the guide roller 13A, it outputs data indicating the detected number of rotations to the processing device 30.

[0026] (Configuration of processing device) (a) Calculation of the winding diameter of the winding bobbin Fig. 3 is a block diagram showing the configuration of the processing device 30 shown in Fig. 1. As shown in Fig. 3, the processing device 30 includes an acquisition unit 31, an arithmetic processing unit 32, a storage unit 33, and a control unit .

[0027] The acquisition unit 31 acquires various data from each of the first detector 15 and the second detector 18 shown in Fig. 1. More specifically, when the acquisition unit 31 acquires data indicating the rotation speed ft of the winding bobbin 20 from the first detector 15, the acquisition unit 31 outputs the acquired data to the calculation processing unit 32. Furthermore, when the acquisition unit 31 acquires data indicating the rotation speed of the guide roller 13A from the second detector 18, the acquisition unit 31 outputs the acquired data to the calculation processing unit 32.

[0028] When the calculation processing unit 32 receives data indicating the rotation speed of the guide roller 13A from the acquisition unit 31, it acquires the winding speed Vt of the optical fiber 1 on the guide roller 13A by using the rotation speed of the guide roller 13A and the diameter of the guide roller 13A that is pre-stored in the memory unit 33.

[0029] Specifically, the calculation processing unit 32 calculates the linear velocity of the optical fiber 1 on the guide roller 13A by multiplying the number of rotations of the guide roller 13A by the circumferential length of the guide roller 13A (=π×diameter of the guide roller 13).The calculation processing unit 32 then uses the calculated linear velocity as the winding speed Vt of the optical fiber 1 around the winding bobbin 20 in a calculation to be described later.

[0030] In this way, the calculation processing unit 32 calculates the linear speed of the wire on the guide roller 13A, i.e., the linear speed of the optical fiber 1 just before it is wound onto the winding bobbin 20, thereby making it possible to more accurately obtain the winding speed Vt of the optical fiber 1.

[0031] In addition, the calculation processing unit 32 calculates the winding diameter D of the winding bobbin 20 based on the traverse speed Vtrv of the winding bobbin 20, the rotation speed ft of the winding bobbin 20 indicated by the data output from the first detector 15, and the winding speed Vt of the optical fiber 1.

[0032] 4 is a diagram for explaining a method for calculating the winding diameter D of the winding bobbin 20 by the calculation processing unit 32 of the processing device 30 shown in FIG. 4. As shown in FIG. 4, the traverse speed Vtrv (m / s) of the winding bobbin 20, the rotation speed ft (s -1 ), the winding speed Vt (m / s) of the optical fiber 1, and the winding diameter D (m) of the winding bobbin 20 satisfy the relationship of the following formula (1) according to Pythagorean theorem of velocity.

[0033]

number

[0034] The calculation processing unit 32 shown in FIG. 3 can calculate the winding diameter D of the winding bobbin 20 as shown in the following equation (2) by using the traverse speed Vtrv of the winding bobbin 20, the rotation speed ft of the winding bobbin 20, and the winding speed Vt of the optical fiber 1 based on the above equation (1).

[0035]

number

[0036] (b) Modified example of the method for obtaining the winding speed of the optical fiber The calculation processing unit 32 in the processing device 30 is not limited to a configuration that calculates the linear velocity of the optical fiber 1 on the guide roller 13A as the winding speed Vt of the optical fiber 1 used to calculate the winding diameter D.

[0037] For example, the calculation processing unit 32 may calculate the linear speed VL of the optical fiber 1 controlled by a capstan 11 (see Figure 1) arranged upstream of the guide roller 13, and use the calculated linear speed VL as the winding speed Vt of the optical fiber 1 to calculate the winding diameter D.

[0038] Specifically, a detector (not shown) that detects the rotation speed of capstan 11A is connected to the capstan 11 (hereinafter referred to as "capstan 11A") located furthest downstream among the multiple capstans 11. Upon detecting the rotation speed of capstan 11A, the detector outputs data indicating the detected rotation speed to processing device 30.

[0039] When the acquiring unit 31 in the processing device 30 acquires data indicating the rotation speed of the capstan 11A, the acquiring unit 31 outputs the acquired data to the calculation processing unit 32.

[0040] When the calculation processing unit 32 receives data indicating the rotation speed of the capstan 11A from the acquisition unit 31, it calculates the linear speed of the optical fiber 1 running on the capstan 11A by multiplying the rotation speed of the capstan 11A by the circumferential length of the capstan 11A (=π × diameter of the capstan 11A).The calculation processing unit 32 can then use the calculated linear speed as the winding speed Vt of the optical fiber 1 around the winding bobbin 20 to calculate the winding diameter D.

[0041] Here, when the running speed of the optical fiber 1 on the guide rollers 13 is used as the winding speed Vt of the optical fiber 1, there is a possibility that the optical fiber 1 may come off the groove bottom of the guide rollers 13 due to reasons such as vibration of the optical fiber 1. In such a case, it is not possible to obtain an accurate winding speed Vt of the optical fiber 1.

[0042] In contrast, the optical fiber 1 traveling on the capstan 11 is in close contact with the capstan 11 by a capstan belt (not shown) or the like, and is therefore less likely to experience linear vibration. Therefore, by calculating the linear speed VL of the optical fiber 1 traveling on the capstan 11 as described above, the winding speed Vt of the optical fiber 1 can be obtained more stably.

[0043] 1, when the dancer roller 12 is provided between the capstan 11A and the guide roller 13, the linear speed VL of the optical fiber 1 running on the capstan 11A may change downstream of the dancer roller 12. For this reason, the method of using the linear speed VL of the optical fiber 1 running on the capstan 11A in calculating the take-up speed Vt is more effective when the dancer roller 12 is not provided between the capstan 11A and the guide roller 13.

[0044] (c) Control by a processing device (c-1) Control of the rotation speed of the winding bobbin (dancer control) 1 and 3, the vertical position of the dancer roller 12A, which is located furthest downstream among the plurality of dancer rollers 12, is detected by a sensor (not shown), and data indicating the detected position of the dancer roller 12A is transmitted to the processing device 30. Upon acquiring the data, the acquiring unit 31 in the processing device 30 outputs the acquired data to the control unit 34. Then, the control unit 34 controls the rotation speed ft of the winding bobbin 20 based on the vertical position of the dancer roller 12A indicated by the data.

[0045] More specifically, when the dancer roller 12A moves upward, the control unit 34 determines that the rotation speed ft of the winding bobbin 20 is fast, and controls the winding bobbin 20 to decrease the rotation speed ft. On the other hand, when the dancer roller 12A moves downward, the control unit 34 determines that the rotation speed ft of the winding bobbin 20 is slow, and controls the winding bobbin 20 to increase the rotation speed ft.

[0046] In this way, the rotation speed ft of the winding bobbin 20 is controlled (hereinafter referred to as "dancer control") based on changes in the vertical position of the dancer roller 12A, so that the rotation speed ft of the winding bobbin 20 can be appropriately controlled.

[0047] (c-2) Control of the reversal position of the winding bobbin The control unit 34 further controls the reversal position of the relative movement of the winding bobbin 20 with respect to the guide roller 13A based on the winding diameter D of the winding bobbin 20 calculated by the calculation processing unit 32 so that the winding diameter D is uniform throughout the entire body 21 of the winding bobbin 20.

[0048] That is, the control unit 34 controls the reversal position so that the winding diameter D near the flanges 22A and 22B of the winding bobbin 20 matches the winding diameter D at a position away from the flanges 22A and 22B on the body 21, specifically at the center of the axial direction of the winding bobbin 20.

[0049] For example, the calculation processing unit 32 constantly calculates the winding diameter D of the winding bobbin 20, thereby updating the distribution of the winding diameter D in real time. Then, based on the distribution of the winding diameter D, the calculation processing unit 32 averages the winding diameter D(x) in a predetermined range including the vicinity of the center in the axial direction of the trunk portion 21, and acquires the result as the winding diameter D at the center of the trunk portion 21, i.e., the target value Dr of the winding diameter.

[0050] As described above, the calculation processing unit 32 can update the distribution of the winding diameter D in real time, and therefore can update the target value Dr of the winding diameter while the optical fiber 1 is being wound within the predetermined range. Then, the calculation processing unit 32 periodically outputs the latest winding diameter D (hereinafter referred to as the "current winding diameter D") and the updated target value Dr to the control unit 34.

[0051] When the control unit 34 acquires the current winding diameter D and the target value Dr, it determines the reversal position of the winding bobbin 20 based on the current winding diameter D and the target value Dr. For example, when the current winding diameter D is smaller than the target value Dr, the control unit 34 determines the reversal position so that the reversal position is closer to the flange 22A or flange 22B side. On the other hand, when the current winding diameter D is larger than the target value Dr, the control unit 34 determines the reversal position so that the reversal position is closer to the center of the body 21.

[0052] Furthermore, the control unit 34 may perform control so that the winding diameter D approaches the target value Dr even more, based on the current winding diameter D and the target value Dr, as shown in equation (3).

[0053] Specifically, as shown in FIG. 2, a point located outside the flange 22B in the axial direction of the winding bobbin 20 is defined as the reference position. The distance from the reference position of the winding bobbin 20 to the reversal position is defined as "L" (m). The control unit 34 may determine the reversal position of the winding bobbin 20 so that the distance L is proportional to the sum of the difference ΔD (=Dr-D) between the current winding diameter D (m) and the target value Dr (m), the value obtained by integrating the difference ΔD with respect to time (s) and dividing by the integral time Ti (s), and the value obtained by differentiating the difference ΔD with respect to time (s) and multiplying by the differential time Td (s). In equation (3), "ΔL" (m) is the amount of change in "L," and "k1" (dimensionless) is a coefficient.

[0054]

number

[0055] 1 so that the moving direction of the winding bobbin 20 is reversed at the determined reversal position. As a result, the winding bobbin 20 reverses its moving direction at the reversal position determined by the control unit 34. As a result, the newly calculated winding diameter D approaches the target value Dr.

[0056] Similarly, when the guide roller 13A moves back and forth relative to the winding bobbin 20 instead of the winding bobbin 20, the control unit 34 determines the reversal position of the movement direction of the guide roller 13A by the above-described method. Then, the control unit 34 outputs a control signal to the traverse motor 16 that controls the drive of the guide roller 13A so that the movement direction of the guide roller 13A is reversed at the determined determination position.

[0057] However, as described above, in the winding method described in Patent Document 1, the traverse reversal position is controlled after the number of winding layers wound around the bobbin has increased, so it takes time for the winding diameter of the bobbin to change, and it is not easy to make the winding diameter of the bobbin uniform.

[0058] Furthermore, it is possible to control the reversal position of the relative movement of the take-up bobbin 20 with respect to the guide roller 13A based on the change in the position of the dancer roller 12A in the up-down direction. Specifically, when the dancer roller 12A moves upward, it is determined that the winding diameter D of the optical fiber 1 on the take-up bobbin 20 has increased, and the reversal position is controlled to be away from the flange portion 22A or the flange portion 22B. On the other hand, when the dancer roller 12A moves downward, it is determined that the winding diameter D of the optical fiber 1 on the take-up bobbin 20 has decreased, and the reversal position is controlled to be closer to the flange portion 22A or the flange portion 22B.

[0059] However, when controlling the reversal position using this method, it may take time for the effect on the winding diameter D of the winding bobbin 20 to be felt, as with the winding method described in Patent Document 1. Furthermore, when such control is performed at high speed, the position of the dancer roller 12A may not change even if the optical fiber 1 is bulged or dented on the winding bobbin 20, making it difficult to make the winding diameter D of the optical fiber 1 on the winding bobbin 20 uniform.

[0060] In contrast, in the optical fiber 1 winding device 100 according to the present disclosure, as described above, the winding diameter D of the winding bobbin 20 can be calculated during winding of the optical fiber 1 by using the relative traverse speed Vtrv of the winding bobbin 20 with respect to the guide roller 13A, the rotation speed ft of the winding bobbin 20, and the winding speed Vt of the optical fiber 1.

[0061] This makes it possible to update in real time the distribution of the winding diameter D. Based on this distribution of the winding diameter D, the reversal position of the relative movement of the guide roller 13A with respect to the winding bobbin 20 can be more appropriately controlled, thereby making it possible to wind the optical fiber 1 uniformly around the winding bobbin 20.

[0062] Furthermore, since the parameters for stabilizing the winding state of the winding bobbin 20 can be acquired quickly, the position of the dancer roller 12A is stabilized, and the winding tension of the optical fiber 1 can be stabilized.

[0063] In the above embodiment, the winding device 100 for the optical fiber 1 has been described as an example of a winding device for a wire body according to the present disclosure, but the winding device for a wire body according to the present disclosure may also be used for a wire body other than the optical fiber 1.

[0064] Although the present invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the present invention. Furthermore, the number, position, shape, etc. of the components described above are not limited to the above embodiments, and can be changed to any number, position, shape, etc. that is suitable for implementing the present invention. [Explanation of symbols]

[0065] 1 Optical fiber (filament) 10 Supply Department 11,11A Capstan 12,12A Dancer Roller 13, 13A Guide roller 14 Winding motor (winder) 15 First detector 16 Traverse motor 18 Second detector 20 Winding bobbin 21 Torso 22A,22B Tsuba 30 Processing equipment 31 Acquisition Department 32 Processing unit 33 Storage section 34 Control Unit 100 Winding device D, D(x) Winding diameter Dr target value ft Winding bobbin rotation speed VL Optical fiber linear velocity Vt Winding speed

Claims

1. a bobbin for winding the wire; a winding machine that rotates the bobbin; a guide roller that guides the wire onto the bobbin, The bobbin reciprocates relative to the guide roller along the axial direction of the bobbin, The winding device is a processing device that calculates a winding diameter of the bobbin based on a relative moving speed of the bobbin with respect to the guide roller, a rotation speed of the bobbin, and a winding speed of the wire;

2. The wire winding device according to claim 1 , wherein the processing device acquires the number of rotations of the guide roller and calculates a winding speed of the wire based on the number of rotations of the guide roller.

3. the winding device further includes a capstan that is disposed upstream of the guide roller in a travel path of the wire and controls a travel speed of the wire; The wire winding device according to claim 1 , wherein the processing device uses a running speed of the wire on the capstan as a winding speed of the wire.

4. 4. The wire winding device according to claim 1, wherein the processing device controls a reversal position of the relative movement of the bobbin with respect to the guide roller based on the newly calculated winding diameter and the winding diameter at the center of the axial direction of the bobbin.

Images