Apparatus and method for manufacturing glass fiber

Abstract

To provide an apparatus for manufacturing a glass fiber, capable of improving the quality of a cake by excellently keeping the incident angle of a glass strand to a traverse and a collet.SOLUTION: An apparatus 11 for manufacturing a glass fiber includes: a gathering shoe 14 for converging a plurality of glass filaments F to form a glass strand S; a collet 18 for winding the glass strand S; first and second tension adjustment bars 19 and 20 arranged between the gathering shoe 14 and the collet 18 and configured to control the tension of the glass strand S while sliding and contacting the glass strand S; a traverse 15 arranged between the second tension adjustment bar 20 and the collet 18 and configured to reciprocate the glass strand S; and a drive unit 17 for fluctuating a distance between the second tension adjustment bar 20 and the traverse 15 to the collet 18 while maintaining a positional relationship between the second tension adjustment bar 20 and the traverse 15.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an apparatus for manufacturing glass fibers and a method for manufacturing glass fibers.

Background Art

[0002] Conventionally, as an apparatus for manufacturing glass fibers, there is one including a gathering shoe, a traverse, a collet, and a tension adjustment bar disposed between the gathering shoe and the traverse (see, for example, Patent Document 1). The gathering shoe focuses a plurality of glass filaments to form a glass strand. The traverse reciprocates the glass strand along a direction intersecting the extending direction of the glass strand. The collet winds up the glass strand. And the tension adjustment bar controls the tension of the glass strand while being in sliding contact with the glass strand. Thereby, the tension of the glass strand can be stabilized. As a result, the quality of the cake formed by winding the glass strand around the collet can be stably improved.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the above-described apparatus for manufacturing glass fibers, when the glass strand is wound around the collet, the diameter of the cake during manufacturing gradually increases. For this reason, it is necessary to gradually increase the distance of the traverse with respect to the collet. However, when the traverse moves with respect to the tension adjustment bar whose position is fixed, the incident angle of the glass strand with respect to the traverse varies. This causes the function of the traverse to become unstable, and ultimately causes the quality of the cake to deteriorate.

[0005] An object of the present invention is to provide an apparatus for manufacturing glass fibers and a method for manufacturing glass fibers, which can improve the quality of a cake by maintaining a good incident angle of glass strands with respect to a traverse and a collet.

Means for Solving the Problems

[0006] [1] A glass fiber manufacturing apparatus for solving the above problems includes a gathering shoe that converges a plurality of glass filaments to form a glass strand, a collet that winds up the glass strand, a tension adjustment bar that is disposed between the gathering shoe and the collet and controls the tension of the glass strand while being in sliding contact with the glass strand, and a traverse that is disposed between the tension adjustment bar and the collet and reciprocates the glass strand along a direction intersecting the extending direction of the glass strand. The glass fiber manufacturing apparatus is provided with a driving device that varies the distances of the tension adjustment bar and the traverse with respect to the collet while maintaining the positional relationship between the tension adjustment bar and the traverse.

[0007] According to the same configuration, the driving device varies the distances of the tension adjustment bar and the traverse with respect to the collet while maintaining the positional relationship between the tension adjustment bar and the traverse. Thereby, while maintaining the incident angle of the glass strand with respect to the traverse at a good angle, the distance of the traverse with respect to the collet is appropriately maintained, and thereby the incident angle of the glass strand with respect to the collet can also be maintained at a good angle. Therefore, for example, fluctuations in the tension of the glass strand wound around the collet can be suppressed, and as a result, the quality of the cake formed by winding the glass strand around the collet can be improved.

[0008] [2] In the glass fiber manufacturing apparatus according to [1] above, the tension adjustment bar includes a first tension adjustment bar on the upstream side of the glass strand and a second tension adjustment bar on the downstream side of the glass strand, and it is preferable that the driving device varies the distances of the second tension adjustment bar and the traverse with respect to the collet without varying the position of the first tension adjustment bar with respect to the gathering shoe.

[0009] According to this configuration, since the position of the first tension adjustment bar with respect to the gathering shoe does not vary, the function of the gathering shoe is stabilized. That is, if the position of the first tension adjustment bar with respect to the gathering shoe varies, the glass strand formed by the gathering shoe may become unstable, but this can be suppressed.

[0010] [3] In the glass fiber manufacturing apparatus according to [1] or [2] above, it is preferable that the driving device varies the distances of the tension adjustment bar and the traverse with respect to the collet according to the diameter of the cake formed by the glass strand wound around the collet.

[0011] According to this configuration, the distance of the traverse with respect to the collet can be appropriately maintained, whereby the incident angle of the glass strand with respect to the collet can be maintained at a good angle. [4] The method for manufacturing glass fibers for solving the above problems includes a gathering step of gathering a plurality of glass filaments by a gathering shoe to form a glass strand, a winding step of winding the glass strand by a collet, a tension adjustment step of controlling the tension of the glass strand by bringing a tension adjustment bar disposed between the gathering shoe and the collet into sliding contact with the glass strand, and a reciprocating step of reciprocating the glass strand along a direction intersecting the extending direction of the glass strand by a traverse disposed between the tension adjustment bar and the collet. The method for manufacturing glass fibers is characterized in that during the tension adjustment step and during the reciprocating step, while maintaining the positional relationship between the tension adjustment bar and the traverse, the distances of the tension adjustment bar and the traverse with respect to the collet are varied.

[0012] According to the method, during the tension adjustment step and during the reciprocating step, while maintaining the positional relationship between the tension adjustment bar and the traverse, the distances of the tension adjustment bar and the traverse with respect to the collet are varied. Thereby, while maintaining the incident angle of the glass strand with respect to the traverse at a good angle, the distance of the traverse with respect to the collet is appropriately maintained, and thereby the incident angle of the glass strand with respect to the collet can be maintained at a good angle. Therefore, for example, fluctuations in the tension of the glass strand wound around the collet can be suppressed, and as a result, the quality of the cake formed by winding the glass strand around the collet can be improved.

[0013] [5] In the method for manufacturing glass fibers according to [4] above, the tension adjustment bar includes a first tension adjustment bar on the upstream side of the glass strand and a second tension adjustment bar on the downstream side of the glass strand. During the tension adjustment step and during the reciprocating step, it is preferable to vary the distances of the second tension adjustment bar and the traverse with respect to the collet without varying the position of the first tension adjustment bar with respect to the gathering shoe.

[0014] According to the method, since the position of the first tension adjustment bar with respect to the gathering shoe does not vary, the function of the gathering shoe is stabilized. That is, if the position of the first tension adjustment bar with respect to the gathering shoe varies, the glass strands formed by the gathering shoe may become unstable, but this can be suppressed.

[0015] [6] In the method for manufacturing glass fibers according to [4] or [5] above, during the tension adjustment step and during the reciprocating step, it is preferable to vary the distances of the tension adjustment bar and the traverse with respect to the collet according to the diameter of the cake formed of the glass strands wound around the collet.

[0016] According to the method, the distance of the traverse with respect to the collet can be appropriately maintained, whereby the incident angle of the glass strands with respect to the collet can be maintained at a good angle. [Advantages of the Invention]

[0017] According to the glass fiber manufacturing apparatus and the glass fiber manufacturing method of the present invention, the quality of the cake can be improved by maintaining a good incident angle of the glass strands with respect to the traverse and the collet. [Brief Description of the Drawings]

[0018]

Figure 1

[0019] Hereinafter, an embodiment of a glass fiber manufacturing apparatus and a glass fiber manufacturing method will be described with reference to the drawings. In the drawings, for convenience of explanation, a part of the configuration may be shown in an exaggerated or simplified manner. Also, the dimensional ratios of each part may be different from the actual ones.

[0020] (Overall Configuration of Glass Fiber Manufacturing Apparatus 11) As shown in Fig. 1, a glass fiber manufacturing apparatus 11 includes a bushing 12, an applicator 13, a gathering shoe 14, a traverse 15, a cradle 16, a driving device 17, and a collet 18. Further, the glass fiber manufacturing apparatus 11 includes a first tension adjusting bar 19 and a second tension adjusting bar 20 as tension adjusting bars, and sliding contact surface changing devices 21, 22.

[0021] The bushing 12 has a plurality of nozzles downward, and is a box-shaped container to which molten glass is supplied and from which a plurality of glass filaments F are drawn downward from the nozzles. In Fig. 1, a plurality of glass filaments F are schematically illustrated together. In other words, in Fig. 1, only the outermost sides of the plurality of glass filaments F are illustrated, and the range through which the glass filaments F pass is illustrated. The applicator 13 has a driving roller and is a device for applying a sizing agent to the glass filaments F. The gathering shoe 14 is a device for forming a glass strand S by gathering and bundling a plurality of glass filaments F to which the sizing agent has been applied while gathering them.

[0022] The traverse 15 is provided on the cradle 16 so as to be movable along a horizontal width direction (a direction perpendicular to the paper surface in Fig. 1), which is a direction intersecting the extending direction of the glass strand S. The traverse 15 has a U-shaped engaging groove 15a through which the glass strand S passes and engages with the glass strand S. The traverse 15 reciprocates along the width direction by the operation of a traverse driving device (not shown), thereby reciprocating the glass strand S along the width direction.

[0023] The cradle 16 is provided so as to be movable along a horizontal front-rear direction X1 (left-right direction in FIG. 1) orthogonal to the width direction (direction orthogonal to the plane of the paper in FIG. 1). A drive device 17 is drivingly connected to the cradle 16, and the drive device 17 is capable of moving the cradle 16 along the front-rear direction X1. Note that a touch bar 23 is provided on the cradle 16 of the present embodiment. The touch bar 23 is formed in a columnar shape. The touch bar 23 is made of, for example, brass. The central axis of the touch bar 23 is provided along the width direction (direction orthogonal to the plane of the paper in FIG. 1). And the touch bar 23 is provided so as to be in sliding contact with the glass strand S. The touch bar 23 is provided downstream of the traverse 15. In other words, the touch bar 23 is provided below the traverse 15. Further, the touch bar 23 is disposed at a position that prevents the glass strand S from contacting the bottom of the engagement groove 15a. That is, the touch bar 23 is disposed at a position where it is always in sliding contact with the glass strand S.

[0024] The collet 18 rotates about an axis center along the width direction (direction orthogonal to the plane of the paper in FIG. 1) by the operation of a collet drive device (not shown), and winds up the glass strand S that has passed through the traverse 15. The glass strand S is wound while being helically wound around the collet 18 to form a cake 24.

[0025] (Configuration of the first tension adjustment bar 19 and the second tension adjustment bar 20) The first tension adjustment bar 19 and the second tension adjustment bar 20 are disposed between the gathering shoe 14 and the collet 18. Specifically, the first tension adjustment bar 19 and the second tension adjustment bar 20 are disposed between the gathering shoe 14 and the traverse 15. The first tension adjustment bar 19 and the second tension adjustment bar 20 control the tension of the glass strand S while being in sliding contact with the glass strand S.

[0026] Specifically, the first tension adjustment bar 19 and the second tension adjustment bar 20 are formed in a cylindrical shape. The first tension adjustment bar 19 and the second tension adjustment bar 20 are made of, for example, carbon. The axial centers of the first tension adjustment bar 19 and the second tension adjustment bar 20 are provided along the width direction (the direction perpendicular to the paper surface in FIG. 1).

[0027] The first tension adjustment bar 19 is arranged on the upstream side of the glass strand S with respect to the second tension adjustment bar 20. That is, the second tension adjustment bar 20 is arranged on the downstream side of the glass strand S with respect to the first tension adjustment bar 19. In other words, the first tension adjustment bar 19 is arranged above the second tension adjustment bar 20. The first tension adjustment bar 19 and the second tension adjustment bar 20 are arranged such that the sliding contact surfaces 19a and 20a, which are part of the outer peripheral surface, are always in sliding contact with the glass strand S.

[0028] Sliding contact surface changing devices 21 and 22 are connected to each of the first tension adjustment bar 19 and the second tension adjustment bar 20. The sliding contact surface changing devices 21 and 22 are capable of changing the sliding contact surfaces 19a and 20a with the glass strand S by rotating the first tension adjustment bar 19 and the second tension adjustment bar 20 about the axial center along the width direction (the direction perpendicular to the paper surface in FIG. 1). The position of the first tension adjustment bar 19 is fixed. That is, the distance and position of the first tension adjustment bar 19 with respect to the gathering shoe 14 are provided so as not to vary. On the other hand, the second tension adjustment bar 20 is provided to operate in conjunction with the cradle 16 so as to vary the distance and position of the second tension adjustment bar 20 with respect to the collet 18 together with the traverse 15.

[0029] With this configuration, the above-described drive device 17 can vary the distances of the second tension adjustment bar 20 and the traverse 15 with respect to the collet 18 while maintaining the positional relationship between the second tension adjustment bar 20 and the traverse 15. Further, the drive device 17 can vary the distances of the second tension adjustment bar 20 and the traverse 15 with respect to the collet 18 without varying the position of the first tension adjustment bar 19 with respect to the gathering shoe 14. That is, the drive device 17 can vary the distances of the second tension adjustment bar 20 immediately before the traverse 15 and the traverse 15 with respect to the collet 18 among the tension adjustment bars.

[0030] Further, the drive device 17 varies the distance of the cradle 16 with respect to the collet 18, that is, the distances of the second tension adjustment bar 20 and the traverse 15, according to the diameter of the cake 24 composed of the glass strand S wound around the collet 18. In the present embodiment, the glass fiber manufacturing apparatus 11 includes a laser sensor 25 that measures the distance to the outer surface of the cake 24 during manufacturing by the laser L, and varies the distances of the traverse 15 and the like with respect to the collet 18 to appropriate distances based on the measurement result.

[0031] Also, the sliding contact surface changing devices 21, 22 are set to rotate the first tension adjustment bar 19 and the second tension adjustment bar 20 at a speed (circumferential speed) slower than the speed at which the glass strand S passes through the sliding contact surfaces 19a, 20a. Specifically, for example, the sliding contact surface changing devices 21, 22 are set to rotate the first tension adjustment bar 19 and the second tension adjustment bar 20 in a direction (forward direction) corresponding to the direction in which the glass strand S passes through the sliding contact surfaces 19a, 20a. Further, the sliding contact surface changing devices 21, 22 are set to rotate the first tension adjustment bar 19 and the second tension adjustment bar 20 at a constant speed so as to make one revolution in 20 minutes.

[0032] (Manufacturing method of glass fiber and its operation) The method for manufacturing glass fibers according to this embodiment is executed using the above-described glass fiber manufacturing apparatus 11.

[0033] The method for manufacturing glass fibers includes a "converging step", a "reciprocating step", a "winding step", and a "tension adjusting step". In the converging step, a plurality of glass filaments F are converged by the gathering shoe 14 to form a glass strand S.

[0034] In the reciprocating step, the glass strand S is reciprocated along the width direction (the direction perpendicular to the paper surface in FIG. 1), which is a direction intersecting the extending direction of the glass strand S, by the traversing 15 disposed between the second tension adjusting bar 20 and the collet 18.

[0035] In the winding step, the glass strand S that has passed through the traversing 15 is wound by the collet 18. Here, the tension adjusting step is performed between the converging step and the reciprocating step. In the tension adjusting step, the tension of the glass strand S is controlled by bringing the first tension adjusting bar 19 and the second tension adjusting bar 20 into sliding contact with the glass strand S.

[0036] Also, in the method for manufacturing glass fibers, during the tension adjusting step, the sliding contact surfaces 19a, 20a with the glass strand S are changed by rotating the first tension adjusting bar 19 and the second tension adjusting bar 20. That is, in the first tension adjusting bar 19 and the second tension adjusting bar 20, the circumferential position of the outer peripheral surface that is in sliding contact with the glass strand S is changed. At this time, in this embodiment, the first tension adjusting bar 19 and the second tension adjusting bar 20 are rotated at a speed slower than the speed at which the glass strand S passes through the sliding contact surfaces 19a, 20a.

[0037] Also, in the method for manufacturing glass fibers, during the tension adjusting step and during the reciprocating step, while maintaining the positional relationship between the second tension adjusting bar 20 and the traversing 15, the distance between the second tension adjusting bar 20 and the traversing 15 with respect to the collet 18 is varied.

[0038] Also, during the tension adjustment process and during the reciprocating process, without changing the position of the first tension adjustment bar 19 with respect to the gathering shoe 14, the distances between the second tension adjustment bar 20 and the traversing 15 with respect to the collet 18 are changed.

[0039] Also, during the tension adjustment process and during the reciprocating process, the distances between the second tension adjustment bar 20 and the traversing 15 with respect to the collet 18 are changed according to the diameter of the cake 24 made of the glass strand S wound around the collet 18. In this way, the cake 24 made of the glass strand S wound around the collet 18 is manufactured.

[0040] Next, the effects of the above embodiment will be described below. (1) By the driving device 17, while maintaining the positional relationship between the second tension adjustment bar 20 and the traversing 15, the distances between the second tension adjustment bar 20 and the traversing 15 with respect to the collet 18 are changed. Thereby, while keeping the incident angle of the glass strand S with respect to the traversing 15 at a good angle, the distance of the traversing 15 with respect to the collet 18 is appropriately maintained, and thereby the incident angle of the glass strand S with respect to the collet 18 can also be kept at a good angle. Therefore, for example, fluctuations in the tension of the glass strand S wound around the collet 18 can be suppressed, and as a result, the quality of the cake 24 formed by winding the glass strand S around the collet 18 can be improved.

[0041] (2) By the driving device 17, the distances of the second tension adjusting bar 20 and the traverse 15 with respect to the collet 18 are varied without varying the position of the first tension adjusting bar 19 with respect to the gathering shoe 14. Thereby, since the position of the first tension adjusting bar 19 with respect to the gathering shoe 14 does not vary, the function of the gathering shoe 14 is stabilized. That is, if the position of the first tension adjusting bar 19 with respect to the gathering shoe 14 varies, the glass strand S formed by the gathering shoe 14 may become unstable, but this can be suppressed.

[0042] (3) The driving device 17 varies the distances of the second tension adjusting bar 20 and the traverse 15 with respect to the collet 18 according to the diameter of the cake 24 composed of the glass strand S wound around the collet 18. Therefore, the distance of the traverse 15 with respect to the collet 18 can be appropriately maintained, and thereby the incident angle of the glass strand S with respect to the collet 18 can be maintained at a favorable angle.

[0043] This embodiment can be implemented with the following modifications. This embodiment and the following modification examples can be implemented in combination with each other within a technically non - conflicting range. · In the above embodiment, the glass fiber manufacturing apparatus 11 is provided with the sliding surface changing devices 21 and 22 for changing the sliding surfaces 19a and 20a in sliding contact with the glass strand S. However, the present invention is not limited thereto, and a configuration without the sliding surface changing devices 21 and 22 may also be used.

[0044] ·In the above-described embodiment, the sliding contact surface changing devices 21 and 22 rotate the first tension adjusting bar 19 and the second tension adjusting bar 20 at a constant speed so as to make one rotation in 20 minutes, but the present invention is not limited thereto. For example, the sliding contact surface changing devices 21 and 22 may rotate the first tension adjusting bar 19 and the second tension adjusting bar 20 at a constant speed so as to make one rotation at other times, such as 10 minutes. Further, for example, the sliding contact surface changing devices 21 and 22 may rotate the first tension adjusting bar 19 and the second tension adjusting bar 20 periodically or irregularly, at intervals (i.e., intermittently).

[0045] ·In the above-described embodiment, the sliding contact surface changing devices 21 and 22 change both of the sliding contact surfaces 19a and 20a of the first tension adjusting bar 19 and the second tension adjusting bar 20, but the present invention is not limited thereto, and a configuration may be adopted in which any one of the sliding contact surfaces 19a and 20a is changed. That is, the glass fiber manufacturing apparatus 11 may be configured not to include one of the two sliding contact surface changing devices 21 and 22.

[0046] ·In the above-described embodiment, the tension adjusting bar includes the first tension adjusting bar 19 and the second tension adjusting bar 20, but the present invention is not limited thereto. For example, the glass fiber manufacturing apparatus 11 may include only a single tension adjusting bar. Further, for example, the glass fiber manufacturing apparatus 11 may include three or more tension adjusting bars. In this case, it is preferable that the sliding contact surface changing device changes the sliding contact surface of each of all the tension adjusting bars.

[0047] ·In the above-described embodiment, a single driving device 17 varies the distances between the second tension adjusting bar 20 and the traversing 15 with respect to the collet 18, but the present invention is not limited thereto, and a configuration may be adopted in which two or more driving devices vary the distances. That is, the driving device may include a first driving device that varies the distance between the second tension adjusting bar 20 and the collet 18 and a second driving device that varies the distance between the traversing 15 and the collet 18.

[0048] ·In the above-described embodiment, the drive device 17 is configured not to vary the position of the first tension adjustment bar 19 with respect to the gathering shoe 14, but the present invention is not limited to this, and the position of the first tension adjustment bar 19 with respect to the gathering shoe 14 may be varied.

[0049] ·In the above-described embodiment, the drive device 17 is configured to vary the distances of the second tension adjustment bar 20 and the traverse 15 with respect to the collet 18 according to the diameter of the cake 24 composed of the glass strands S wound around the collet 18, but the present invention is not limited to this. For example, the drive device 17 may be configured to vary the distances of the second tension adjustment bar 20 and the traverse 15 with respect to the collet 18 at a preset speed.

[0050] ·In the above-described embodiment, if the traverse 15 can reciprocate the glass strand S along a direction intersecting the extending direction of the glass strand S, it may be changed to a traverse of another configuration (for example, a wire traverse).

[0051] ·In the above-described embodiment, the touch bar 23 is provided below the traverse 15 in the cradle 16, but the present invention is not limited to this, and a configuration in which the touch bar 23 is not provided may also be adopted.

[0052] ·The method for manufacturing glass fibers in the above-described embodiment is performed using the glass fiber manufacturing apparatus 11, but the present invention is not limited to this, and it may be performed using other manufacturing apparatuses. For example, during the tension adjustment process, the first tension adjustment bar 19 and the second tension adjustment bar 20 may be manually rotated to change the sliding contact surfaces 19a and 20a with the glass strand S.

Explanation of Reference Numerals

[0053] 11… Glass fiber manufacturing apparatus, 14… Gathering shoe, 15… Traversing, 17… Driving device, 18… Collet, 19… First tension adjusting bar (tension adjusting bar), 20… Second tension adjusting bar (tension adjusting bar), 24… Cake, F… Glass filament, S… Glass strand.

Claims

1. a gathering shoe for gathering a plurality of glass filaments to form a glass strand; a collet for winding the glass strand; a tension adjustment bar disposed between the gathering shoe and the collet, the tension adjustment bar being in sliding contact with the glass strand and controlling the tension of the glass strand; a traverse disposed between the tension adjustment bar and the collet, for reciprocating the glass strand along a direction intersecting an extension direction of the glass strand; A glass fiber manufacturing apparatus comprising: A glass fiber manufacturing apparatus comprising: a drive device that changes the distance of the tension adjustment bar and the traverse relative to the collet while maintaining the positional relationship between the tension adjustment bar and the traverse.

2. The tension adjustment bar includes a first tension adjustment bar on an upstream side of the glass strand and a second tension adjustment bar on a downstream side of the glass strand, 2. The glass fiber manufacturing apparatus according to claim 1, wherein the driving device changes the distance of the second tension adjustment bar and the traverse relative to the collet without changing the position of the first tension adjustment bar relative to the gathering shoe.

3. 2. The glass fiber manufacturing apparatus according to claim 1, wherein the driving device varies the distance of the tension adjustment bar and the traverse relative to the collet in accordance with a diameter of a cake formed of the glass strand wound around the collet.

4. a gathering step of gathering the plurality of glass filaments by a gathering shoe to form a glass strand; a winding step of winding the glass strand by a collet; a tension adjusting step of controlling the tension of the glass strand by sliding a tension adjusting bar disposed between the gathering shoe and the collet against the glass strand; a reciprocating step of reciprocating the glass strand along a direction intersecting an extension direction of the glass strand by a traverse disposed between the tension adjustment bar and the collet; A method for producing glass fibers comprising: A method for manufacturing glass fibers, comprising: varying a distance of the tension adjustment bar and the traverse relative to the collet while maintaining a positional relationship between the tension adjustment bar and the traverse during the tension adjustment process and the reciprocating process.

5. The tension adjustment bar includes a first tension adjustment bar on an upstream side of the glass strand and a second tension adjustment bar on a downstream side of the glass strand, 5. The method for producing glass fibers according to claim 4, wherein the distance of the second tension adjustment bar and the traverse relative to the collet is changed without changing the position of the first tension adjustment bar relative to the gathering shoe during the tension adjustment process and the reciprocating process.

6. 5. The method for producing glass fibers according to claim 4, wherein the distance of the tension adjustment bar and the traverse relative to the collet is varied during the tension adjustment step and the reciprocating step in accordance with a diameter of a cake made of the glass strand wound around the collet.

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