JP5396830B2 - Glass fiber winding device - Google Patents

Description

  The present invention relates to a glass fiber winding device that winds a glass fiber wound on an original reel.

  As a wire rod winding device of the prior art, in the process of winding a wire rod fed by a grooved pulley with a winder, a slack portion of the wire rod is provided between the front and rear grooved pulleys, and the amount of slack of this wire rod is detected. The device uses an electrically driven grooved pulley that can be pulled with constant tension so that the front and rear grooved pulleys are not affected by the pretreatment process, and the non-contact analog distance in the slack lower limit direction of the slack portion of the wire A device for detecting the amount of sag of a wire is disclosed in which a sensor is opposed and a signal related to an increase or decrease in the amount of sag of the wire detected by the sensor is sent to a variable motor for rotational driving of a winder. In this sagging amount detection device, a dancer pulley provided with a balance weight attached via a rod is provided in the sagging portion to obtain winding tension (see, for example, Patent Document 1).

  In addition, with respect to the reversing position adjustment device for the traverse guide for the wire guide that is provided opposite to the bobbin for winding the wire and reverses at the end of the bobbin, a dancer is provided on the upstream side of the traverse guide, and the movable in the dancer A wire rod winding device is disclosed in which a sensor for detecting the vertical movement of the pulley is provided and the detection result by the sensor is reflected in the drive system of the reversing position adjusting device (see, for example, Patent Document 2).

In addition, an optical fiber is manufactured from the optical fiber preform by the strand manufacturing section of the vertical manufacturing apparatus, and the optical fiber is turned sideways by a turn pulley by the strand winding section of the manufacturing apparatus. An apparatus for manufacturing an optical fiber that is taken up by a winder after passing through is disclosed. In this manufacturing apparatus, the take-up machine is normally operated at a steady speed, but in order to cope with the outer diameter fluctuation of the optical fiber preform and the subtle outer diameter fluctuation of the optical fiber strand, the dancer is provided with the optical fiber strand by the dancer. The amount of storage is changed, and the linear speed of the winder follows this (see, for example, Patent Document 3).
JP 2001-341194 A JP 2001-2319 A JP 2003-206156 A

  However, according to Patent Document 1, the winding speed is controlled by rotating the variable motor for rotation driving of the winder according to the speed command signal corresponding to the distance to the slack portion detected by the non-contact analog distance sensor. However, the winding tension varies due to the inertial force based on the swing of the balance weight. Due to the variation in the winding tension, there is a problem that the winding is loosened when the winding tension is small and is broken when the winding tension is large. In addition, if the wire is glass fiber, there is a problem that light leaks and the performance is lowered.

  Moreover, since the wire winding part of the wire winding device of Patent Document 2 and the manufacturing device of Patent Document 3 includes a dancer (dancer pulley) as in Patent Document 1, winding is performed in the same manner as Patent Document 1. If the take tension is small, the winding is loosened, and if it is large, the wire breaks. If the wire is made of glass fiber, there is a problem that light leaks and the performance deteriorates.

  The present invention has been made in view of the above-mentioned problems, and when the glass fiber wound on the original reel is wound around the take-up reel, the fluctuation in the tension of the glass fiber is reduced to prevent breakage or unwinding. In addition, an object of the present invention is to provide a glass fiber winding device that can secure the performance of the glass fiber and reduce the artificialness of the winding operation.

In order to solve the above-described problems, the present invention provides an original reel having a wire transmission motor around which a glass fiber is wound, and a plurality of fixed pulleys and a plurality of movable pulleys in which the glass fibers from the original reel are engaged. a composite movable pulley unit consisting in a weight to change the distance between the movable pulley and a movable and the fixed pulley in the vertical direction, the winding take take-up motor the glass fibers from the composite movable pulley unit A take-up reel, a first position detecting means for detecting an upper limit position of the moving pulley, a second position detecting means for detecting a lower limit position of the moving pulley, the first position detecting means, and the second position detecting means. A control device that receives a detection signal from the means and controls the rotational speed of at least one of the wire transmission motor and the winding motor according to the detection signal;
A tension pulley in which the glass fiber is engaged between the original reel and the take-up reel; and tension measuring means for measuring a force acting on the tension pulley, the tension pulley including the compound pulley block And the take-up reel are arranged so that the glass fiber is horizontally rotated 180 degrees, and the tension measuring means measures a tension obtained by adding the tensions on the drawing side and the sending side of the glass fiber. It was set as the characteristic characterized by this.
In this case, a direction change pulley for changing the direction of the glass fiber is provided between the tension pulley and the take-up reel, and the direction change pulley engulfs the glass fiber drawn horizontally from the tension pulley. The glass fiber may be pulled out downward in the direction of gravity.

Further, the take-up motor may be rotated at a constant speed.

Further, the length measuring pulleys the glass fiber during the winding reel and the composite movable pulley unit is engaged times provided, wherein the control device the Ochsen motor and the said measuring pulley reaches a predetermined rotational speed it is preferable to stop the rotation of the take-up motor.

Also includes a traverse mechanism having a fiber guide for moving the glass fibers are wound around the take-up reel winding axis direction of the take-up reel, wherein the control device of the traverse mechanism the take-up motor and synchronization it may be controlled.

According to the configuration of the present invention described above, the winding tension wound around the winding reel is set by the weight of the weight Wg. The take-up tension setting value Fs is the number of stages (hereinafter referred to as the number of stages) of the compound moving pulley unit, and the weight of the weight acting on the moving pulley in common (the total weight of the shaft and the guide member connected to the shaft and the weight) is Wg. Then, Fs = Wg / (2 × n). The winding tension set value Fs is the tension when the moving pulley is stationary or the winding tension when the weight and the moving pulley are moved at a very low acceleration at which the influence of inertia of the weight can be ignored. Does not include the effect of inertia. However, the moving pulley and the weight are controlled so as to reciprocate between the respective limit positions detected by the first position detecting means and the second position detecting means at an appropriate speed. This reciprocating motion generates an inertial force (= weight mass M × weight acceleration α) in the weight. This inertia force acts as a disturbance ΔF on the winding tension F of the glass fiber, and the winding tension F becomes F = (winding tension setting value Fs + disturbance ΔF), and the disturbance ΔF = the inertial force of the weight / (2 × n). = Mα / (2 × n). The disturbance ΔF1 due to the first stage inertia force is ΔF1 = (M / n) × (nα) / 2 = Mα / 2, and the n stage disturbance ΔF of the present invention is n minutes of the one stage disturbance ΔF1 of the prior art. Decrease to 1. In addition, by setting the number of stages of the compound moving pulley unit appropriately, it can be reduced to a value that hardly affects the winding tension setting value Fs. As described above, it is possible to provide a glass fiber winding device that prevents breakage of the glass fiber or loosening of the winding and ensures performance as an optical fiber.

In addition, the glass fiber can be wound with a stable winding tension by suppressing fluctuations in winding tension, reducing the number of workers required for winding adjustment, winding abnormality monitoring, and handling of winding problems. it can.
Furthermore, the glass fiber is engaged with a tension pulley, and by setting the engagement angle to 180 degrees, a force 2F that is twice the tension F of the glass fiber acts on the shaft, and the force 2F is measured with a tension measuring instrument. To do. As a result, it can be confirmed that the winding tension of the glass fiber is within a predetermined value range, and the yield rate is improved. In addition, by arranging the tension pulley shaft in the direction of gravity, the influence of the weight of the tension pulley is eliminated, so that the measurement value accuracy is improved.

In the configuration in which the winding motor rotates at a constant speed, the wire feeding motor is controlled by the detection signals of the first position detecting means and the second position detecting means, and the winding motor is rotated at a constant speed. The torque of the take-up motor is constant without being controlled. Thereby, since the tension | tensile_strength which winds up glass fiber to a winding reel also becomes fixed, a fracture | rupture or winding loosening is prevented and the predetermined performance of glass fiber is securable. Furthermore, since the wire transmission motor and the winding motor do not require any special control other than starting and stopping, the wire transmission motor and the winding motor can be easily controlled.

Further, a length measuring pulley is provided between the compound movable pulley unit and the take-up reel so that the glass fiber is engaged. When the length measuring pulley reaches a predetermined number of revolutions, the control device includes the wire feeding motor and the In the configuration in which the rotation of the winding motor is stopped , the length in which the glass fiber per one rotation of the length measuring pulley is sent is measured in advance. Based on this measured value, the number of rotations of the length measuring pulley is counted by, for example, a rotary encoder, and when the number of rotations of the length measuring pulley reaches a predetermined number of rotations, the transmission motor and the winding motor are stopped. As a result, the glass fiber can be wound on the take-up reel with an accurate length.

A traverse mechanism having a fiber guide for moving the glass fiber wound around the take-up reel in a winding axis direction of the take-up reel, and the control device synchronizes the traverse mechanism with the take-up motor. In the configuration to be controlled , the motor of the traverse mechanism is controlled in synchronization with the winding motor. The fiber guide guides the glass fiber by moving the glass fiber that has passed through the fiber guide in the winding axis direction of the take-up reel. As a result, the glass fiber is wound up in alignment on the take-up reel, stress on the glass fiber due to non-aligned winding can be suppressed, and the predetermined performance of the glass fiber can be ensured.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an explanatory view of a glass fiber winding device according to an embodiment of the present invention. As shown in FIG. 1, the glass fiber winding device 1 is a device that winds the glass fiber 2 wound around the original reel 3 around the winding reel 6 with a predetermined tension. The original reel 3 includes a transmission motor 4 for unwinding the glass fiber 2 that has already been wound and a handle 5 for manual operation. The transmission motor 4 is fixed to a base (not shown). The glass fiber 2 wound around the former reel 3 is engaged with the rising direction changing pulley 11 in a substantially vertical direction and is changed in a substantially horizontal direction, and is engaged with a first-stage pulley 21 of the connecting pulley unit 20, and then a dancing unit. Rotate to 30 first stage pulley 31. The direction changing pulley 11 has a shaft (not shown) fixed to a base (not shown) via a fixing member (not shown), and can freely rotate with this shaft as a rotating shaft.

  In the connecting pulley section 20, five pulleys 21 to 25 (fixed pulleys) are sequentially inserted into the shaft 27, and a direction changing pulley 26 that changes the drawing direction of the glass fiber 2 is also inserted into the shaft 27. The shaft 27 is fixed substantially horizontally to a base (not shown) via a fixing member 28, and the pulleys 21 to 26 rotate freely around the shaft 27 as a rotation axis.

  The dancing unit 30 includes five pulleys 31 to 35, a weight system 40, a slide rail 36, an upper limit side mitt switch 41, and a lower limit side mitt switch 42. Five pulleys 31 to 35 (moving pulleys) are inserted into the holes 31a to 35a (FIG. 2) of the rotation shaft 30a of the pulleys 31 to 35 sequentially, and the shaft 39 is arranged in parallel to the shaft 27. The Each of the pulleys 31 to 35 can freely rotate, but is prevented from moving in the direction of the shaft 39. The shaft 39 is connected to a slide member 37, and a weight 38 is fixed to the slide member 37. Further, the slide member 37 is mounted on a slide rail 36 fixed to a base (not shown), and can be raised and lowered freely in the direction of gravity.

  The weight system 40 includes a slide member 37 (weight), a weight 38, and a shaft 39 (weight). The weight of the weight system 40 is a total value of the weights of the slide member 37, the weight 38, and the shaft 39. In addition, any one or two of the slide member 37, the weight 38, and the shaft 39 may serve as the three functions of the slide member 37, the weight 38, and the shaft 39.

  The slide rail 36 guides so that the pulleys 31 to 35 can move only in the direction of the force received by the weight of the weight system 40. That is, in the present embodiment, the pulleys 31 to 35 are guided so as to move in the vertical direction. The slide rail 36 includes an upper limit limit switch 41 (first position detecting means) that outputs a detection signal when the shaft 39 of the dancing unit 30 reaches the upper limit position A, and a lower limit that outputs a detection signal when the shaft 39 reaches the lower limit position B. A side limit switch 42 (second position detecting means) is provided. The two-dot chain line dancing unit 30 in FIG. 1 shows a state located at the upper limit position A, and the solid line dancing unit 30 shows a state located at the lower limit position B. Based on detection signals from the upper limit switch 41 and the lower limit switch 42, the dancing unit 30 reciprocates between the upper limit position A and the lower limit position B. As a result, the amount of the winding line stock can be secured within the length indicated by the stock portion 43.

  FIG. 2 is an explanatory diagram in which the compound movable pulley unit 100 is developed. As shown in FIG. 2, the pulleys 21-25 of the connection pulley part 20 function as a fixed pulley, and the pulleys 31-35 of the dancing part 30 function as a moving pulley. The compound movable pulley unit 100 includes pulleys 21 to 25 that are rotatably inserted into a shaft 27 fixed to a fixing member 28, and pulleys 31 to 35 that are wound around the glass fiber 2 to form a five-stage compound pulley unit 100. Is done. That is, the glass fiber 2 that is engaged with the first-stage pulley 21 is engaged with the first-stage pulley 31 and then is engaged with the second-stage pulley 22. 3rd stage pulley 23, 3rd stage pulley 33, 4th stage pulley 24, 4th stage pulley 34, 5th stage pulley 25, 5th stage pulley 35, and direction change pulley 26 Is done. The first-stage pulley 21 and the first-stage pulley 31 have the same width, and the positions from the end face are shifted by half the width. The other pulleys 22 to 26 and 32 to 35 have the same positional relationship. A tension is generated in the glass fiber 2 by the weight W of the weight system 40 including the weight 38, the shaft 39, and the slide member 37 in total.

  The direction changing pulley 26 changes the direction of the glass fiber 2 drawn from the fifth-stage pulley 35 and pulls it into the length measuring pulley 12. The glass fiber 2 drawn into the length measuring pulley 12 is wound around the length measuring pulley 12 and then drawn into a tension pulley 14 having a shaft 17 disposed horizontally. The rotational speed of the length measuring pulley 12 is counted by the rotary encoder 8. The length of the glass fiber 2 sent out by one rotation of the measuring pulley 12 is measured in advance. The winding length of the take-up reel 6 is known from the measured value and the count number of the rotary encoder 8, and when the specified rotation speed is reached, the wire feed motor 4, the take-up motor 7 and the traverse motor 57 are stopped. In addition, the direction change pulley 26 is not provided, and the glass fiber 2 drawn from the fifth-stage pulley 35 may be drawn into the length measuring pulley 12.

  The glass fiber 2 drawn horizontally by the tension pulley 14 is drawn 180 degrees, drawn horizontally, and drawn by the direction changing pulley 16. The rotating shaft 14b of the tension pulley 14 is positioned in the direction of gravity, and mounting brackets 19 are fixed to both ends of the shaft 17 provided in the hole 14a of the rotating shaft 14b. The tension measuring device 9 (tension measuring means) ) Is connected. A shaft (not shown) is inserted into the direction changing pulley 16 and fixed to a fixing member (not shown) fixed to a base (not shown). The direction changing pulley 16 can freely rotate.

  The glass fiber 2 drawn out from the direction change pulley 16 is drawn into the traverse mechanism 50. The traverse mechanism 50 includes a traverse pulley 51, a moving table 52 including the traverse pulley 51, a pair of cylindrical fiber guides 53 and 54, a moving table 55 including fiber guides 53 and 54, and a moving table. The linear driving means 56 includes a traverse motor 57 that slides 52 and 55. The moving tables 52 and 55 can be moved in the direction of the winding axis 6a of the take-up reel 6 by the linear drive means 56, and the traverse pulley 51 and the fiber guides 53 and 54 are also moved in the direction of the winding axis 6a.

  The glass fiber 2 drawn out from the direction change pulley 16 is engaged with the traverse pulley 51, passes through the gap between the fiber guides 53 and 54, and is taken up by the take-up reel 6. The take-up reel 6 is attached with a take-up motor 7 fixed to a base (not shown), and the glass fiber 2 is taken up as the take-up motor 7 rotates. The traverse motor 57 is rotated by the control device 60 in synchronization with the take-up motor 7. Since the fiber guides 53 and 54 move in the direction of the winding shaft 6a so that the glass fiber 2 taken up by the take-up reel 6 matches the winding direction, the glass fiber 2 taken up by the take-up reel 6 is taken up by the take-up reel 6. The reel 6 is wound in alignment.

  The glass fiber 2 winding device 1 of FIG. 1 of the present invention controls the wire feed motor 4 with the detection signals of the upper limit switch 41 and the lower limit switch 42, but controls the winding motor 7. Also good. In this case, the wire feeding motor 4 is rotated at a constant speed, the take-up motor 7 is controlled, and the shaft 39 of the stock portion 43 is maintained between the upper limit position A and the lower limit position B, while the glass fiber 2 is taken up. Take up to 6. Further, both the wire transmission motor 4 and the winding motor 7 may be controlled.

  The upper limit switch 41 and the lower limit switch 42 detect the upper and lower limit positions A and B at the center of the shaft 39, but any one of the slide member 37, the weight 38, and the pulleys 31 to 35. Limit positions A and B may be detected.

  Moreover, although the slide member 37 of the winding device 1 moves up and down in the direction of gravity, it may slide in the horizontal direction.

  In this embodiment, since the pulleys 31 to 35 that are moving pulleys move in the vertical direction, the weight of the weight system 40 is the total value of the weights of the slide member 37, the weight 38, and the shaft 39. For example, when the pulleys 31, 31, 32, 33, 34, and 35 move in the horizontal direction, the weight system does not include the weight of the ride member 37 and the shaft 39, but only the weight of the weight 38, and the weight of the weight 38 itself. Acts on the pulleys 31-35.

  Next, the operation and effect of the glass fiber winding device according to the embodiment of the present invention will be described. FIG. 3 is an explanatory view of the operation of the compound moving pulley unit 100 shown in FIG. 1, in which (a) is a state where the compound moving pulley unit 100 is located at the lower limit position B, and (b) is located at the upper limit position A. Indicates the state to be performed.

  While the wire feed motor 4 is rotating and continuing the state in which the glass fiber 2 is unwound from the original reel 3, the center of the shaft 39 of the dancing unit 30 is directed to the lower limit position B indicated by a one-dot chain line. When the center of the shaft 39 reaches the lower limit position B, the lower limit switch 42 detects that the center of the shaft 39 has reached the lower limit position B. The detection signal of the lower limit switch 42 is transmitted to the control device 60, and the control device 60 stops the wire feed motor 4 and stops the unwinding of the glass fiber 2 wound around the original reel 3. On the other hand, the winding motor 7 rotates at a predetermined constant speed until the winding is completed, and winds the glass fiber 2 around the winding reel 6. Therefore, the center of the shaft 39 faces the upper limit position A indicated by the alternate long and short dash line against the tension of the glass fiber 2 caused by the weight Wg of the weight system 40 including the weight 38, the shaft 39, and the slide member 37. The glass fiber 2 moves while decreasing the stock length, and reaches an upper limit position A indicated by a one-dot chain line. Then, the upper limit limit switch 41 detects that the shaft 39 has reached the upper limit position A, and transmits a detection signal of the upper limit limit switch 41 to the control device 60. The control device 60 receives this detection signal and rotates the wire feed motor 4 to unwind the glass fiber 2 wound around the original reel 3. Thus, the center of the shaft 39 moves in the lower limit direction by the action of the weight Wg of the weight system 40 and reaches the lower limit position B again. In this way, the operation and stop of the wire feed motor 4 are controlled by the detection signals of the upper limit side limit switch 41 and the lower limit side limit switch 42, and the center of the shaft 39 is located between the lower limit position B and the upper limit position A. In this manner, the glass fiber 2 is wound around the take-up reel 6. While the glass fiber 2 always maintains a state in which the tension is applied, the glass fiber 2 is replenished from the original reel 3 when the stock amount of the glass fiber 2 in the stock portion 43 is lost, and from the original reel 3 when the stock amount is a predetermined amount. Supply will be stopped.

  FIG. 4 is an explanatory view of a general fixed pulley unit and a moving pulley unit for explaining the principle of the present invention, in which (a) is a fixed pulley unit, (b) is a one-stage moving pulley unit, (C) shows a two-stage compound pulley unit. As shown to (a), the fixed pulley unit 80a hangs the string 86 which suspended the weight 85 of the weight Wg to the fixed pulley 81. FIG. In this case, the tension F1 of the string 86 is equal to the weight of the weight 85 and is Wg. (B) The moving pulley unit 80b constitutes a one-stage moving pulley unit by rotating the fixed pulley 81 and the moving pulley 83 from which the weight 85 is suspended with a rod 86. In this case, the tension F2 of the string 86 is equal to half the weight of the weight 85 and is Wg / 2. The moving pulley unit 80c of (c) constitutes a two-stage compound moving pulley unit by rotating the fixed pulleys 81 and 82 and the moving pulleys 83 and 84 sequentially with the rod 86. In this case, since the weight 85 is suspended by both the dynamic pulleys 83 and 84, the tension F3 of the string 86 is equal to 1/4 of the weight of the weight 85 and is Wg / 4. In an n-stage compound moving pulley unit in which n fixed pulleys and n moving pulleys are engaged with a scissors, the weight Wg of the weight 85 acts commonly on each moving pulley, so the tension Fn is Wg / (2n).

  As shown in FIG. 2, in the compound moving pulley unit 100, the tension F of the glass fiber 2 acting on the pulleys 21 to 25 and the pulleys 31 to 35 is the same, and the number of steps of the compound moving pulley unit 100 (hereinafter, the number of steps). Is 5 stages (n = 5), the tension Fo of the glass fiber 2 is 1/10 of the weight Wg of the weight system 40 including the weight 38, the shaft 39, and the slide member 37, and Fo = Wg / 10. . The tension Fo is the tension when the dancing unit 30 is stationary or the tension when the inertial force of the weight system 40 is moving at a very slow speed at which the inertial force can be ignored, and does not include the influence of the inertial force. The winding tension of the winding reel 6 is equal to the tension of the glass fibers 2 of the pulleys 21 to 25 and the pulleys 31 to 35. Therefore, Fo = Wg / 10 is the tension when the take-up reel 6 is stationary or the tension when the take-up reel 6 is wound at an extremely slow speed at which the inertial force of the weight system 40 can be ignored. This is the set value Fs. Therefore, Fs = Wg / 10 and the influence of the inertial force of the weight system 40 is not included. In the n-stage compound pulley unit, the winding tension setting value Fsn = Wg / (2 × n).

  However, since the glass fiber 2 is wound around the take-up reel 6 at an appropriate speed, the dancing unit 30 reciprocates between the upper limit position A and the lower limit position B at an appropriate speed. Therefore, the winding tension F during winding is affected by the inertial force (= mass M of the weighting system 40 × acceleration α of the weighting system 40) due to the reciprocating motion of the weighting system 40, and this inertial force fluctuates. Therefore, the influence of the inertia force on the winding tension F is a disturbance ΔF. That is, the winding tension F during winding is F = winding tension set value Fs + disturbance ΔF. At n stages, disturbance ΔFn = inertial force of the weight system 40 / (2 × n) = (M × α) / (2 × n), and the compound pulley block 100 has five stages (n = 5), so the disturbance ΔF Is ΔF = M × α / 10.

  Comparing the five-stage winding device 1 of the present invention with the one-stage winding device of the prior art, under the same winding tension setting value Fs and the same winding speed, the conventional one-stage winding device is Because the weight of the weight system is one fifth of the weight W of the weight system 40, the weight of the weight system is one fifth of the mass M of the weight system 40, and the speed of the dancing section is five times that of the dancing section 30. The acceleration α of the dancing unit is five times that of the dancing unit 30. Therefore, the disturbance ΔF1 of the winding tension in the prior art is ΔF1 = (M / 5) × (5α) / 2 = M × α / 2. As described above, since the disturbance ΔF of the winding device 1 of the present invention is ΔF = M × α / 10, the disturbance ΔF is reduced to one fifth of the disturbance ΔF1 of the winding tension of the prior art. The winding tension fluctuation is reduced, and a stable winding tension can be secured. In the n-stage compound pulley unit, the winding tension disturbance ΔFn is ΔFn = (M × α) / (2n), so that the number of stages of the compound pulley unit 100 is appropriate (for example, five steps). By setting, it can be reduced to a value that hardly affects the winding tension setting value Fs. As described above, it is possible to provide the winder 1 for the glass fiber 2 that prevents breakage or unwinding of the glass fiber 2 and ensures predetermined performance as an optical fiber.

  In this embodiment, the weights of the pulleys 31 to 35 are negligibly small. However, when the weight is not negligible, the force based on the pulley weight and the inertial force described below are the winding tension F described above. Add to. That is, when the weights of the pulleys 31 to 35 are the same and Ug, the force Ug / 2 based on the weight of the pulley is added to the winding tension F, and the disturbance based on the inertial force of the pulleys 31 to 35 = (mass of the pulley 35 XAcceleration / 2) is added. Therefore, it is preferable that the weights of the pulleys 31 to 35 are small.

  Further, the transmission motor 4 is started and stopped by detection signals from the upper limit switch 41 and the lower limit switch 42, and the winding motor 7 is rotated at a constant speed, so that the torque of the winding motor 7 is constant. . As a result, the tension at which the glass fiber 2 is wound around the take-up reel 6 is also constant, preventing breakage or loosening of the winding, and ensuring the predetermined performance of the glass fiber 2 taken up on the take-up reel 6. Further, the wire transmission motor 4 and the winding motor 7 need not be specially controlled except for starting the winding start and stopping the winding end, so that the control device 60 for the transmission motor 4 and the winding motor 7 is simple and low. It becomes cost.

  In addition, since the glass fiber 2 can be wound with a stable winding tension while suppressing fluctuations in the winding tension, the number of workers required for winding adjustment, monitoring of winding abnormality, and handling of winding problems can be reduced. Can be reduced.

  Furthermore, since the fluctuation value of the winding tension can be sufficiently reduced compared to the winding tension setting value under a predetermined winding tension setting value, the diameter of the winding start of the winding reel 6 is normal to the performance of the glass fiber 2. It is possible to make it close to the minimum diameter that can be held. As a result, the outer diameter of the glass fiber 2 wound around the take-up reel 6 decreases.

  Further, a length measuring pulley 12 is provided between the compound movable pulley unit 100 and the take-up reel 6, and the glass fiber 2 from the direction changing pulley 26 is wound once. Then, the feeding length of the glass fiber 2 per one rotation of the length measuring pulley 12 is checked in advance, and the number of rotations of the length measuring pulley 12 is counted by the rotary encoder 8, and when this count reaches a specified value. Thus, the rotation of the winding motor 7, the wire transmission motor 4, and the traverse motor 57 is stopped. Thereby, the glass fiber 2 can be wound on the take-up reel 6 with an accurate length. The length measurement pulley 12 may be provided between the original reel 3 and the compound pulley block 100, but it is preferable to provide the length measurement pulley 12 at a position close to the take-up reel 6 from the viewpoint of measurement accuracy.

  Further, the glass fiber 2 between the compound movable pulley unit 100 and the take-up reel 6 is wound around the tension pulley 14 by 180 degrees. The tension pulley 14 is disposed so that the shaft 17 is in the direction of gravity. The tension measuring instrument 9 constantly measures the tension (= 2 × F) obtained by adding the tension F of the glass fiber 2 on the pulling side of the tension pulley 14 and the tension F of the glass fiber 2 on the sending side of the tension pulley 14. Yes. This measurement value is highly accurate because the shaft 17 is arranged in the direction of gravity and the influence of the weight of the tension pulley 14 is removed. As described above, the take-up tension of the glass fiber 2 taken up on the take-up reel 6 can be accurately measured, and it can be confirmed that the take-up tension is within a predetermined value range. The tension pulley 14 may wind the glass fiber 2 between the original reel 3 and the compound pulley block 100 around the tension pulley 14 by 180 degrees. However, the tension pulley 14 is preferably provided at a position close to the take-up reel 6. This is preferable from the viewpoint of accuracy.

  The glass fiber 2 in front of the take-up reel 6 passes through a traverse mechanism 50 provided in front of the take-up reel 6 and is taken up by the take-up reel 6. The traverse mechanism 50 controls the rotation of the traverse motor 57 in synchronization with the rotation of the take-up reel 6, and guides the traverse pulley 51 and the fiber guides 53 and 54 so that the glass fiber 2 is guided in the direction in which the take-up reel 6 is wound. Move. Thereby, since the glass fiber 2 is wound in alignment on the take-up reel 6, the wound glass fiber 2 is restrained from stress on the glass fiber due to non-aligned winding, and the predetermined performance of the glass fiber 2 can be secured. .

  Table 1 shows the inspection results of the quality inspection of the glass fiber 2 wound on the take-up reel 6 when the take-up tension setting is changed by the weight of the weight 38 in the take-up device 1. As shown in Table 1, when the winding tension setting is too low (when the weight of the weight system 40 is too light), the performance can be ensured, but unwinding, misaligned windings, and inappropriate winding shape occur. If the winding tension setting is too high (if the weight is too heavy), performance cannot be ensured, and winding breakage may occur. Survey Nos. 2, 3, and 5 can ensure performance, pass various visual inspections, and have a good overall evaluation.

  Table 2 shows the investigation results of the fluctuation range of the tension of the glass fiber 2 when the weight of the weight system 40 is made constant in the winding device 1 and the number of stages of the compound moving pulley unit is changed from 1 stage to 6 stages. Show. As shown in Table 2, when the number of stages is small, the fluctuation range of the tension increases, and when the number of stages is large, the fluctuation range of the tension decreases. The number of stages of the compound moving pulley unit is preferably 5 in consideration of the simplicity of the configuration.

Conventionally, two workers are always necessary. However, according to the present invention, one worker is required only when the original reel 3 and the take-up reel 6 are set, and the man-hour can be reduced. From the above investigation results, the effect of the present invention could be verified.

It is explanatory drawing of the winding apparatus of the glass fiber concerning embodiment of this invention. It is explanatory drawing which expand | deployed the compound moving pulley unit of the winding apparatus shown in FIG. It is a partial explanatory view of the winding device in a state where the dancing portion is located at the limit position. It is explanatory drawing of a general fixed pulley unit and a general moving pulley unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Winding device 2 Glass fiber 3 Original reel 4 Wire feed motor 6 Winding reel 6a Winding shaft 7 Winding motor 9 Tension measuring device (tension measuring means)
12 Measuring pulley 14 Tension pulley 21, 22, 23, 24, 25 Pulley (fixed pulley)
31, 32, 33, 34, 35 Pulley (moving pulley)
30 Dancing part 37 Slide member (weight)
38 Weight 39 Axis (weight)
41 Upper limit switch (first position detection means)
42 Lower limit switch (second position detection means)
50 Traverse mechanism 53, 54 Fiber guide 57 Traverse motor 60 Control device 100 Compound moving pulley unit A Upper limit position (one limit position)
B Lower limit position (the other limit position)

Claims (5)

An original reel having a wire motor and wound with glass fiber;
A compound moving pulley unit composed of a plurality of fixed pulleys and a plurality of moving pulleys in which the glass fiber from the original reel is engaged;
A weight that is vertically movable and changes a distance between the fixed pulley and the movable pulley;
A take-up reel having a take- up motor for taking up the glass fiber from the compound movable pulley unit;
First position detecting means for detecting an upper limit position of the movable pulley;
Second position detecting means for detecting a lower limit position of the movable pulley;
A control device that receives detection signals from the first position detection means and the second position detection means, and controls the rotational speed of at least one of the wire transmission motor and the winding motor by the detection signal;
A tension pulley in which the glass fiber is wound between the original reel and the take-up reel;
Tension measuring means for measuring the force acting on the tension pulley,
The tension pulley is disposed between the compound pulley block and the take-up reel so as to rotate the glass fiber horizontally by 180 degrees,
The glass fiber winding device is characterized in that the tension measuring means measures a tension obtained by adding the tensions on the drawing side and the feeding side of the glass fiber. A direction changing pulley is provided between the tension pulley and the take-up reel to change the direction of the glass fiber,
2. The glass fiber winding according to claim 1, wherein the direction change pulley wraps the glass fiber drawn horizontally from the tension pulley, and draws the glass fiber downward in the direction of gravity. apparatus.   The glass fiber winding device according to claim 1 or 2, wherein the winding motor rotates at a constant speed. A length measuring pulley is provided between the compound movable pulley unit and the take-up reel, and the glass fiber is engaged.
4. The control device according to claim 1, wherein the control device stops the rotation of the wire feeding motor and the winding motor when the length measuring pulley reaches a predetermined number of rotations. 5. Glass fiber winding device. A traverse mechanism having a fiber guide for moving the glass fiber wound around the take-up reel in the winding axis direction of the take-up reel;
5. The glass fiber winding device according to claim 1, wherein the control device controls the traverse mechanism in synchronization with the winding motor. 6.

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