TWI766185B - Wire winding machine and wire winding method - Google Patents

Abstract

The subject of the present invention is to suppress the fluctuation of the winding ratio and to suppress the disturbance of the shape of the package surface even if the creep is carried out during the execution of the precise winding. The solution of the present invention is as follows: a wire winding machine is provided with a guide drive part and a control device, the guide drive part reciprocates the traverse guide, and can change the traverse during the wire winding operation Inverted position of the guide. The control device is capable of executing a first reverse rotation control and a second reverse rotation control; the first reverse rotation control is to decelerate the traverse guide that is moving to the outside at a specific speed in the traverse direction, and the first reverse rotation control is performed in the first reverse rotation direction. It reverses inward at the reversal position, and then accelerates to a specific speed; this second reversal control is to decelerate the above-mentioned traverse guide that is moving to the outside at a specific speed in the traverse direction. It reverses inward at the second reversal position, which is inward from the first reversal position, and accelerates to a specific speed. The control device is to set the second inversion time (Trb) in the second inversion control to be longer than the first inversion time (Tra) in the first inversion control during the execution of the precise winding long.

Description

Wire winding machine and wire winding method

The present invention relates to a yarn winding machine and a yarn winding method.

Patent Document 1 discloses a yarn winding machine that forms a package by winding the yarn around a bobbin while traversing the yarn by a traverse guide. A wire winding machine is provided with: a bobbin driving motor for rotationally driving a bobbin; The control unit of the drive motor is cited. One of the ways of winding the yarn in such a yarn winding machine is to control the ratio of the rotation speed of the bobbin to the number of traverses per unit time (winding ratio) to be constant, so-called "precision winding". winding method. In precision winding, the winding ratio is generally set to a value slightly different from the whole number, so that the ribbon-like overlapping winding does not occur (so that the wire does not repeatedly wind on the same path on the surface of the package) ). By setting in this way, in the precision winding, it is possible to avoid the overlapping winding of the strips, and to shift the winding path of the wire on the package surface little by little at a time, while the wire can be parallel and regularly arranged. coiled. Thereby, the unwinding property (unwinding property) of the yarn from the formed package can be improved, and the package density can be easily controlled according to the application of the package.

In contrast to this, Patent Document 2 discloses a traverse device capable of performing creeping for suppressing the bulges on both sides of the package. The so-called bulge on both sides is caused by the sudden reversal (direction change) action of traverse guidance, which is generally considered to be difficult, so that the amount of wire wound at the axial end of the package surface is higher than that of the other parts. The amount of silk is more. The bulges on both sides may cause deterioration of package shape and/or uneven package density. Creep means that the width (traverse width) of the reciprocating region in which the traverse is guided temporarily narrows during package formation. Thereby, compared with the case where no creep is performed, the amount of filaments wound around the axial end of the package can be reduced, and the bulge on both sides can be alleviated. [Prior Art Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Application Laid-Open No. 3-115060 [Patent Document 2] Japanese Patent Laid-Open No. 57-13058

[Problems to be Solved by Invention]

In the yarn winding machine described in Patent Document 1, the following problems may occur when creep is performed during the precise winding (more detailed description will be given in the following embodiment). First, for example, if the traverse width is simply narrowed during creep compared to the normal traverse (hereinafter, simply referred to as "normal"), the traverse cycle fluctuates and the winding ratio cannot be kept constant. Therefore, on the surface of the package, the actual winding position of the wire deviates from the position to be wound from the original wire, resulting in disorder of the shape of the package surface. Therefore, in order to prevent this loss, it is necessary to perform creep without changing the traverse period. However, for example, if the winding ratio is kept constant by simply changing the moving speed of the traverse guide between normal and creep, the angle between the yarn and the package surface (winding) will be caused. Crossover angle) produces a mutual deviation between the normal time and the creep time. Therefore, the shape of the package surface is still disturbed.

The object of the present invention is to suppress the fluctuation of the winding ratio and to suppress the disturbance of the shape of the package surface even if the creep is performed during the execution of the precise winding. [means to solve the problem]

The yarn winding machine according to the first aspect of the invention is capable of being wound around a rotating bobbin while traversing the moving yarn by the traverse guide, and performing precise winding as the above-mentioned bobbin. The winding ratio of the ratio of the rotation speed of the traverse guide to the number of reciprocating movements per unit time of the above-mentioned traverse guide is maintained constant, and the yarn winding machine, which can form a package on one side, is characterized by comprising: a guide A drive unit and a control unit, the guide drive unit for reciprocating the traverse guide in a specific traverse direction, and capable of changing the reverse of the traverse guide during the wire winding operation turn position; The control unit is capable of executing a first reverse rotation control and a second reverse rotation control, and the first reverse rotation control is for controlling the guide drive unit to move the guide drive unit to the outside at a predetermined speed in the traverse direction. The traverse guide decelerates and reverses inward at a specific first reversal position, and then accelerates to the above-mentioned specific speed; the second reversal control is to control the guide drive part, in the traverse In the direction, the above-mentioned traverse guide that is moving outward at a specific speed is decelerated, and is reversed inward at a second inversion position that is located more inward than the above-mentioned first inversion position, and then accelerated to the above-mentioned specific reversal position. speed; In the execution of the above-mentioned precise winding, the second inversion time in the above-mentioned second inversion control, which is the time from the start of the deceleration of the traverse guide to the completion of the re-acceleration, is set to be longer than that in the above-mentioned first inversion time. In the reverse rotation control, the first reverse rotation time, which is the time from the start of the deceleration of the traverse guide to the completion of the re-acceleration, is longer.

As a premise for normal precision winding while creeping, when the traverse guide is reversed at the first reverse position (hereinafter, referred to as normal time) and the second reverse position In the case of inversion (hereinafter, referred to as creep), the winding ratio must be equalized. In order to make the winding ratios equal, for example, when the rotational speed of the bobbin is made constant, even if the width of the movement area of the traverse guide is narrower than usual, the movement period of the traverse guide must be equal to normal.

In the present invention, the second inversion time is longer than the first inversion time. In this way, by actively increasing the reversal time during creep, the movement period of the traverse guide during creep can be increased. Thereby, the movement period of the traverse guide during normal times and during creep can be made equal. Therefore, the variation of the winding ratio can be prevented.

Furthermore, because of this, the traverse period during creep can be adjusted by adjusting the second reversal time, so at timings other than the reversal time, the moving speed of the traverse guide can be set at the normal time and the creep time. Equal time. Thus, the angle of the filament wound on the package surface can be aligned. Therefore, the shape disturbance of the package surface can be suppressed.

As described above, even if the creep is performed during the execution of the precise winding, the fluctuation of the winding ratio can be suppressed, and the shape disturbance of the package surface can be suppressed.

In the yarn winding machine according to a second aspect of the present invention, in the first aspect of the invention, the control unit is such that the distance between the first reversal position and the second reversal position in the traverse direction is longer. In the second inversion control, the width of the region in which the traverse is guided and moves in the traverse direction during the second inversion time is enlarged, which is characteristic.

In order to suppress the fluctuation of the winding ratio and the shape disturbance of the package surface, the longer the distance between the first reversal position and the second reversal position (that is, the narrower the traverse width during creep), It is necessary to increase the second reversal time. Here, when the width of the region in which the traverse guide moves in the traverse direction (hereinafter, referred to as the inversion region) is constant during the second inversion time, when the second inversion time is lengthened, the In the motion guidance, during the second inversion control, it will be an area near the second inversion position for a long time. As a result, the filament tends to be concentrated and easily wound around a narrow area of the package surface. As a result, a step difference is likely to be formed on the surface of the package, and there is a possibility of occurrence of a skipping phenomenon in which the overlapping winding of the yarn slumps and the like, which may adversely affect the shape of the package and the like.

In the present invention, the longer the distance between the first inversion position and the second inversion position, the wider the width of the inversion region. That is, when the second inversion time is increased by narrowing the traverse width during creep, the area in which the traverse guide can move becomes wider in the second inversion control. Therefore, it is possible to suppress the traverse guide from remaining in the narrow region in the traverse direction for a long time. Therefore, it is possible to suppress concentrated winding of the filaments in a narrow area of the package surface.

In the yarn winding machine according to a third aspect of the present invention, in the first or second aspect of the invention, in the second inversion control, the control unit has elapsed after the start of the deceleration of the traverse guide. It is characterized by controlling the guide drive unit so that the traverse guide is positioned at the second reversal position in the traverse direction during the half time of the reversal time.

In the second reverse rotation control, for example, the traverse guide may be rapidly decelerated to reach the second reverse rotation position, and then slowly re-accelerated. However, in this case, the shape of the reversed portion of the yarn wound on the surface of the package may be significantly different during deceleration and re-acceleration of the traverse guide. Therefore, the shape of the yarn on the package surface becomes asymmetrical at the reversed portion, and there is a fear that the reversed portion cannot be formed neatly and beautifully. In the present invention, the time from the start of deceleration of the traverse guide until the traverse guide reaches the second reverse position, and the time from the traverse guide from the second reverse position to the completion of re-acceleration may be set to equal. Thereby, the shape of the yarn at the inversion portion can be implemented into a symmetrical shape with the central axis of the package as the center line (that is, the inversion portion can be formed neatly and beautifully). Therefore, the shape disorder of the reversed portion of the package surface can be suppressed.

A yarn winding machine according to a fourth invention, in any one of the first to third inventions described above, is provided with a bobbin driving part for rotationally driving the bobbin, and the control part has a memory part for memorizing information about the relationship between the rotation angle of the bobbin and the position of the traverse guide in the traverse direction; the bobbin driving part and the guide driving part are controlled according to the information stored in the memory part, as its characteristic.

In the present invention, by performing the control based on the information on the relationship between the rotation angle of the bobbin and the position of the traverse guide, for example, compared to the control using a complicated mechanical structure, the winding ratio can be continuously maintained. While maintaining a constant value, creep is performed to facilitate such a complicated operation. In addition, by overwriting this information, it is possible to easily adjust the position and/or speed of the traverse guide during the second inversion control.

A yarn winding machine according to a fifth invention is characterized in that in any one of the first to fourth inventions described above, the guide drive unit has a drive source configured to be capable of forward and reverse driving.

For example, in a general cam-type traverse device, a motor that rotates in one direction is used as a drive source, and the structure for creeping has a complicated mechanical structure. Therefore, in the cam-type traverse device, it is difficult to perform fine control of creep. In the present invention, the traverse guide can be reciprocated by the forward and reverse driving of the drive source. Therefore, the position and timing of the reversal of the traverse guide can be finely controlled by the control unit. Therefore, fine control of creep can be easily performed.

A yarn winding machine according to a sixth aspect of the present invention, in the fifth aspect of the invention, is characterized in that the guide drive unit includes a belt member mounted with the traverse guide and driven reciprocally by the drive source, as the belt member. characteristic.

For example, in a configuration in which the traverse guide is attached to the front end portion of the swingable arm and the arm is driven to swing, the traverse guide reciprocates in an arc. Therefore, even if precise winding is performed, it may be difficult to regularly and neatly wind the yarn on the surface of the package. In the present invention, the reciprocating drive is performed by stretching the portion of the belt member to which the traverse guide is attached in a linear shape, so that the traverse guide can be easily reciprocated linearly. Therefore, the wire can be easily and neatly wound on the surface of the package.

In the yarn winding method of the seventh invention, the yarn is wound on a rotating bobbin while traversing the moving yarn by the traverse guide, and precise winding is performed to make the yarn as the bobbin. The winding ratio of the rotation speed to the number of reciprocating movements per unit time of the above-mentioned traverse guide is kept constant, and the yarn winding method capable of forming a package on one side is characterized by: performing a first reversal process and a second 2 reverse the process; The first reversal process is to decelerate the above-mentioned traverse guide that is moving outward at a specific speed in a specific traverse direction, reverse inward at a specific first reversal position, and then accelerate again The second reversal process is to decelerate the traverse guide that is moving to the outside at the specific speed in the traverse direction, and is located at a position higher than the first reversal position. The second reversal position on the inside is also reversed to the inside, and then accelerated to the above-mentioned specific speed; In the execution of the above-mentioned precise winding, the second inversion time in the above-mentioned second inversion process, which is the time from the start of the deceleration of the above-mentioned traverse guide to the completion of the re-acceleration, is set to be longer than that in the above-mentioned first. In the reverse rotation process, the first reverse rotation time, which is the time from the start of the deceleration of the traverse guide to the completion of the re-acceleration, is longer.

In the present invention, like the first invention, even if the creep is performed during the execution of the precise winding, the fluctuation of the winding ratio can be suppressed, and the shape disturbance of the package surface can be suppressed.

Next, an embodiment of the present invention will be described with reference to FIGS. 1 to 9 . Let the up-down direction and the left-right direction shown in FIG. 1 be the up-down direction and the left-right direction of the rewinder 1, respectively. The direction orthogonal to both the up-down direction and the left-right direction (the direction perpendicular to the paper surface in FIG. 1 ) is defined as the front-rear direction. The moving direction of the wire Y is taken as the moving direction of the wire.

(Constitution of Rewinder) First, using FIG. 1, the structure of the rewinding machine 1 (the yarn winding machine of this invention) in this embodiment is demonstrated. Fig. 1 is a schematic view of the rewinder 1 viewed from the front. As shown in FIG. 1, the rewinding machine 1 is provided with a wire feeding part 11, a winding part 12, a control device 13 (control part of the present invention), and the like. The rewinding machine 1 unwinds the yarn Y from the yarn feeding package Ps supported by the yarn feeding part 11, and then unwinds it from the winding bobbin Bw (the bobbin of the present invention) through the winding part 12, so as to Those forming the wound package Pw (package of the present invention). More specifically, the rewinder 1 is used, for example, to rewind the yarn Y wound on the yarn feeder package Ps more neatly, or to form the winding package Pw of a desired density.

The wire feeding part 11 is, for example, attached to the front of the lower part of the stand 14 . The yarn feeding part 11 is configured to support the yarn feeding package Ps formed by winding the yarn Y around the yarn feeding bobbin Bs. Thereby, the yarn feeder 11 can supply the yarn Y.

The winding portion 12 is for winding the yarn Y around the winding bobbin Bw to form the winding package Pw. The winding part 12 is provided on the upper part of the machine base 14 . The winding unit 12 includes a cradle arm 21, a winding motor 22 (a bobbin driving unit of the present invention), a traverse device 23, a contact pressure roller 24, and the like.

The cradle arm 21 is supported by the machine table 14 so as to be swingable, for example. The cradle arm 21 rotatably supports the winding bobbin Bw, for example, with the left-right direction as the axial direction of the winding bobbin Bw. A bobbin holder (not shown) for holding the winding bobbin Bw is rotatably attached to the front end portion of the cradle arm 21 . The winding motor 22 is used for rotationally driving the bobbin holder. The winding motor 22 is, for example, a general AC motor, and is configured so that the rotational speed can be changed. Thereby, the winding motor 22 can change the rotational speed of the winding bobbin Bw. The winding motor 22 is electrically connected to the control device 13 (refer to FIG. 2).

The traverse device 23 is a device for traversing the yarn Y in the axial direction of the winding bobbin Bw (in the present embodiment, the left-right direction). The traverse device 23 is disposed immediately upstream in the direction of movement of the yarn of the winding package Pw. The traverse device 23 includes a traverse motor 31 (a guide drive unit of the present invention), an endless belt 32 (a belt member of the present invention), and a traverse guide 33 .

The traverse motor 31 is, for example, a general AC motor. The traverse motor 31 is configured to be capable of forward rotation driving and reverse rotation driving, and is a drive source configured to be capable of changing the rotational speed. The traverse motor 31 is electrically connected to the control device 13 (refer to FIG. 2 ). The endless belt 32 is a belt member to which the traverse guide 33 is attached. The endless belt 32 is wound around a pulley 34 and a pulley 35 that are spaced apart from each other in the left-right direction, and a drive pulley 36 connected to the rotation shaft of the traverse motor 31, and is stretched in a substantially triangular shape. The endless belt 32 is reciprocally driven by the traverse motor 31 . The traverse guide 33 is attached to the endless belt 32, and is disposed between the pulley 34 and the pulley 35 in the left-right direction. The endless belt 32 of the traverse guide 33 is reciprocally driven by the traverse motor 31 to linearly reciprocate in the left-right direction (refer to the arrow in FIG. 1 ). Thereby, the traverse guide 33 traverses the wire Y in the left-right direction. Hereinafter, the left-right direction is also referred to as a traverse direction. In the traverse device 23 having the above-described configuration, by controlling the switching timing of the rotation direction of the rotating shaft of the traverse motor 31, etc., the movement area of the traverse guide 33 can be changed during the winding operation of the wire Y. width (traverse width).

The contact pressure roller 24 applies a contact pressure to the surface of the winding package Pw to adjust the shape of the winding package Pw. The contact pressure roller 24 is in contact with the winding package Pw, and is rotated by the rotation of the winding package Pw.

In the yarn moving direction, between the yarn feeding part 11 and the winding part 12 , the yarn guide 15 , the guide roller 16 , and the tension sensor 17 are arranged in this order from the upstream side. The yarn guide 15 is disposed on, for example, an extension of the central axis of the yarn feeding bobbin Bs, and guides the yarn Y unwound from the yarn feeding package Ps toward the downstream side in the yarn moving direction. The guide roller 16 guides the yarn Y guided by the yarn guide 15 further toward the downstream side in the yarn moving direction. The guide roller 16 is arranged in front of the machine table 14 and above the wire guide 15 . The guide roller 16 is rotationally driven by, for example, a roller drive motor 18 . The roller drive motor 18 is, for example, a general AC motor, and is configured to be capable of changing the rotational speed. As a result, the roller drive motor 18 can change the rotational speed of the guide roller 16 . The roller drive motor 18 is electrically connected to the control device 13 (refer to FIG. 2 ). In the present embodiment, tension is applied to the yarn Y by the speed difference between the peripheral speed of the guide roller 16 and the peripheral speed of the winding package Pw.

The tension sensor 17 is disposed between the winding package Pw and the guide roller 16 in the yarn moving direction, and detects the tension applied to the yarn Y. The tension sensor 17 is electrically connected with the control device 13 (please refer to FIG. 2 ), and transmits the tension detection result to the control device 13 .

The control device 13 includes a CPU, a ROM, a RAM (memory unit 19 ), and the like. In the memory unit 19, parameters such as the winding amount or the winding speed of the yarn Y, and the tensile strength applied to the yarn Y are stored, for example. The control device 13 is controlled by the CPU in accordance with the parameters and the like stored in the RAM (memory unit 19 ) and according to the program stored in the ROM.

In the above-described rewinding machine 1, the yarn Y unwound from the yarn feeding package Ps moves toward the downstream side in the moving direction. The moving yarn Y is wound around the rotating winding bobbin Bw while being traversed in the left-right direction (traverse direction) by the traverse guide 33 (yarn winding operation).

(traverse guided movement control) Next, the basic movement control of the traverse guide 33 by the control device 13 will be described with reference to FIG. 3 . Fig. 3(a) is a graph showing the relationship between the position of the traverse guide 33 in the traverse direction and time. FIG. 3(b) is a graph showing the relationship between the speed and time of the traverse guide 33 in the traverse direction.

Information on the traverse width is stored in the memory unit 19 (refer to FIG. 2 ) of the control device 13 . The control device 13 controls the traverse motor 31 based on the information stored in the memory unit 19 . Thereby, the endless belt 32 is reciprocally driven, and the traverse guide 33 is reciprocated in the traverse direction.

In the graph shown in Fig. 3(a), the horizontal axis shows the time, and the vertical axis shows the position of the traverse guide 33 in the traverse direction. For convenience of description, in the left-right direction, the traverse guide 33 is positioned further left than the center of the reciprocating region (traverse region) as the positive direction of the vertical axis of the graph. In addition, the rightward direction of the center of the traverse region is defined as the negative direction of the vertical axis of the graph.

As an example, when the traverse width is set to W, as shown in FIG. 3(a), the traverse guide 33 reciprocates in the range of -W/2 to W/2 in the traverse direction. . More specifically, for example, the traverse guide 33 is located at the right end (-W/2 position) at a specific timing (the left end of the graph in Fig. 3(a)). After a predetermined time (set to T), the traverse guide 33 moves to the left end (the position of W/2). After that, the traverse guide 33 is reversed to the right and reaches the right end again. By repeating this operation, the traverse guide 33 reciprocates.

As in the graph shown in FIG. 3(b), the horizontal axis represents time, and the vertical axis represents the speed of the traverse guide 33 in the traverse direction. Hereinafter, specific examples will be described. When the traverse guide 33 is located at the right end (-W/2 position), the speed of the traverse guide 33 is zero. The control device 13 controls the traverse motor 31 to accelerate the traverse guide 33 to a predetermined speed (set to V). Then, the control device 13 keeps the speed of the traverse guide 33 constant until the traverse guide 33 reaches the vicinity of the left end (position W/2). When the traverse guide 33 reaches the vicinity of the left end, the control device 13 controls the traverse motor 31 to perform reverse rotation control as follows. That is, the control device 13 decelerates the traverse guide 33 that is moving to the left (outside in the traverse direction), and reverses it to the right (inside in the traverse direction) at the position of W/2 . Then, the control device 13 re-accelerates the traverse guide 33 to a predetermined speed (refer to -V in Fig. 3(b)). In the present embodiment, the time from the start of deceleration of the traverse guide 33 to the completion of re-acceleration in the reverse rotation control is referred to as the reverse rotation time (as shown in FIGS. 3 (a) and (b) ). Tr).

(Precision winding and creep) Next, precise winding and creep will be described with reference to Figs. 4 (a) to (c). Figs. 4(a) and (b) are explanatory diagrams of the precision winding, and the drawings after the winding package Pw is unrolled in the rotation angle direction. For convenience of description, as shown in FIGS. 4( a ) and ( b ), the rotation angle of the winding package Pw at the upper end of the paper is 0 degrees, and the rotation angle of the lower end of the paper is 360 degrees. Fig. 4(c) is an explanatory diagram of creep.

First, the precise wrapping will be described. The precise winding is a winding method that maintains a ratio (winding ratio) of the rotation speed of the winding bobbin Bw to the number of reciprocating movements per unit time of the traverse guide 33 (winding ratio). Thereby, regardless of the winding diameter of the winding package Pw, the relationship between the rotation angle of the winding bobbin Bw and the position of the traverse guide 33 in the traverse direction can be controlled.

In the memory unit 19 (refer to FIG. 2) of the control device 13, for example, information (table and calculation) regarding the relationship between the rotation angle of the winding bobbin Bw and the position of the traverse guide 33 in the traverse direction is stored. Mode). As a specific example, the memory unit 19 stores information related to the rotation angle of the winding bobbin Bw and the acceleration/deceleration start position and the reverse position of the traverse guide 33 in the traverse direction. In addition, in the memory unit 19, a calculation formula is stored, and the calculation formula is used to calculate the speed and / or acceleration. The control device 13 controls the winding motor 22 and the traverse motor 31 according to the information stored in the memory unit 19 . In the present embodiment, the control device 13 controls the winding motor 22 so that the rotational speed of the winding bobbin Bw is kept constant. As an initial example, as shown in FIG. 4( a ), when the winding ratio is set to 5, the winding bobbin Bw rotates 5 times every time the traverse guide 33 reciprocates once. That is, as shown in FIG. 4( a ), the winding package Pw rotates the winding wire Y as many as five times when the traverse guide 33 reciprocates once.

In addition, when the winding ratio is an integer as described above, there is a problem that the yarn Y is repeatedly wound on the same path on the surface of the winding package Pw (so-called belt-like overlapping winding occurs). In order to avoid this problem, in practice, as shown in FIG. 4(b), the winding ratio is set to a value slightly different from an integer (for example, 5+α). By setting in this way, in the precision winding, it is possible to avoid the overlapping winding of the strips, and it is possible to shift the winding path of the yarn Y on the surface of the winding package Pw a little bit at a time, while the yarn Y can be wound. Neatly wound parallel and regular. Thereby, the unwinding property (unwinding entanglement) of the yarn Y from the winding package Pw in the subsequent process can be improved, and the package density can be easily controlled according to the application of the winding package Pw.

Next, creep will be described. The so-called creep is to temporarily change the traverse width during the winding operation of the yarn Y for the purpose of suppressing the bulge on both sides of the winding package Pw. The so-called bulging on both sides is caused by the sharp reversal action of the traverse guide 33, which is generally considered to be difficult, so that the amount of wire wound at the axial end portion of the surface of the winding package Pw is higher than that of the wire wound at other parts. more quantity. As a result, it becomes easy to form a step difference on the surface of the winding package Pw, and there is a possibility that the yarn skip phenomenon in which the overlapping winding of the yarn Y is slumped may occur. In addition, it may cause the deterioration of the shape of the winding package Pw and/or the unevenness of the density of the winding package Pw, or the like.

As described above, the traverse device 23 is configured by the traverse motor 31 to reciprocately drive the endless belt 32 to which the traverse guide 33 is attached. Therefore, by controlling the traverse motor 31 with the control device 13, the reverse position of the traverse guide 33 can be arbitrarily changed. As an example, as shown in Fig. 4(c), the control device 13 can switch the traverse width (Wa) between a specific first width (Wa) and a second width (Wb) smaller than the first width. That is, it can be constructed so as to be able to creep). In the following, the case where the traverse width is the first width is defined as the normal time, and the case where the traverse width is the second width is defined as the creep time. The distance between the reversal position of the traverse guide 33 in normal times and the reversal position of the traverse guide 33 during creep is ΔW (=(Wa−Wb)/2). Hereinafter, this distance is also referred to as a creep amount. The control device 13 can change the creep amount by controlling the traverse motor 31 . The creep amount is generally about 5 mm to 20 mm, but is not limited to this. In addition, the control device 13 can execute creep at an arbitrary timing. As an example, as shown in FIG. 4( c ), the control device 13 may perform creep once every three reciprocations of the traverse guide 33 . By performing the creep, the amount of filaments wound around the axial end portion of the winding package Pw can be reduced compared to the case where the creep is not performed, and the bulge on both sides can be alleviated.

Here, when the creep is performed during the precision winding, the following problems occur. Specifically, it demonstrates using FIG. 5 (a), (b) and FIG. 6 (a), (b). Fig. 5(a) shows the relationship between the speed and time of the traverse guide 33 when the traverse width is simply narrowed during creep (details will be described later), which is consistent with Fig. 3(b). ) is a graph with the same coordinate axis. Fig. 5(b) is an explanatory diagram showing the path of the yarn Y on the surface of the winding package Pw when the traverse width is simply reduced during creep, and is the left end portion of the winding package Pw. Enlarge the image. Fig. 6(a) shows the relationship between the speed of the traverse guide 33 and time when the traverse speed is simply slowed down during creep (the details will be described later), and is consistent with Fig. 3(b). ) is a graph with the same coordinate axis. Fig. 6(b) is an explanatory diagram showing the path of the yarn Y on the surface of the winding package Pw when the traverse speed is simply slowed down during creep, and is the left end of the winding package Pw enlarged view of . In addition, in the graphs shown in Fig. 5(a) and Fig. 6(a), the solid line represents the traverse speed during normal times, and the broken line represents the traverse speed during creep.

First, in the case of creep, the case where the traverse width is simply narrowed compared to the usual case will be described. Simply narrowing the traverse width, as shown in Fig. 5(a), means that the traverse speed (V) is not changed except during the above-mentioned inversion time (Tr) and inversion control. The change is made only at the execution timing of reverse control. In this case, at the time of creep, the traverse width is narrowed only by inverting the traverse guide 33 earlier than usual. As a result, during creep, the traverse period becomes shorter than usual. Therefore, the precise winding is not performed normally, and the path of the yarn Y on the surface of the winding package Pw becomes as shown in Fig. 5(b). That is, the yarns Y1 and Y2 that are part of the yarn Y wound on the winding package Pw at ordinary times are reversed at points 101 and 102 on the end face Pw1 of the winding package Pw, respectively. In addition, the yarn Y3, which is a part of the yarn Y, which is wound on the winding package Pw during creep, is reversed at a point 103 that is located further inward by a distance ΔW than the points 101 and 102 in the traverse direction. . The point 103 is a position on the unreached side in the rotation angle direction that has not yet reached the point 104 from the reverse position (point 104) assuming that the traverse width when the yarn Y3 is wound is the same as the normal time. That is, the wire Y3 is wound in a state where the wire Y is largely deviated from the winding path 105 as compared with the case where no creep is performed. Therefore, the shape of the surface of the winding package Pw is disturbed.

Next, in the case of creep, the case where the traverse speed is simply slowed down compared to the normal time will be described. Simply slowing down the traverse speed, as shown in Fig. 6(a), means that the reverse rotation time (Tr) and the execution timing of the reverse rotation control are not changed, but the reverse rotation control is not changed from the normal time. traverse speed is slowed down. For example, when the above-mentioned traverse speed at normal time is set as Va, and when the above-mentioned traverse speed at the time of creep is set as Vb, Vb<Va. In this case, the winding ratio is also maintained constant because the traverse period is the same in normal times and during creep. In this case, as shown in FIG. 6( b ), the wire Y3 wound during creep is reversed at point 106 . The point 106 is located at the same angle as the above-mentioned point 104 in the rotation angle direction. However, in this case, due to the change in the traverse speed, the angle between the yarn Y and the winding package Pw (winding cross angle) deviates from the creep in normal times. That is, the yarns Y1 and Y2 that are part of the yarn Y wound around the winding package Pw at ordinary times and the yarn Y3 that is a part of the yarn Y wound around the winding package Pw at the time of creep become not parallel to each other. Therefore, the shape of the surface of the winding package Pw is still disturbed. Here, in the present embodiment, in order to suppress the fluctuation of the winding ratio even if the creep is performed during the execution of the precise winding, and in order to suppress the shape disturbance of the surface of the winding package Pw, the control device 13 performs the following steps: The following control.

(Detailed description of wire winding method using reverse control) The details of the wire winding method using the above-described reverse control by the control device 13 are shown in Figs. 7(a), (b), 8(a), (b), and 9th Figures (a) and (b) will be described. Fig. 7(a) is a graph showing the relationship between the position of the traverse guide 33 in the traverse direction and time. FIG. 7(b) is a graph showing the relationship between the speed and time of the traverse guide 33 in the traverse direction. Fig. 8(a) is a graph showing the relationship between the acceleration of the traverse guide 33 and the time in the traverse direction. Fig. 8(b) is a graph showing the relationship between the width of the inversion region and the creep amount, which will be described later. FIGS. 9(a) and 9(b) show the path of the yarn Y on the surface of the winding package Pw, and FIGS. 5(b) and 6(b) are explanatory diagrams with the same coordinate axes. In the following description, the rotational speed of the winding package Pw is assumed to be constant.

First, the control device 13 performs the following control as the normal reverse rotation control (first reverse rotation control). In the first reverse rotation control, the control device 13 reverses the traverse guide 33 (the first reverse rotation) at the first reverse rotation position in the traverse direction (Wa/2 in FIG. 7(a) ). Process). In the first reverse rotation control, the time from the start of deceleration of the traverse guide 33 to the completion of re-acceleration is taken as the first reverse rotation time (Tra). In addition, the control device 13 performs the following control as the reverse rotation control (second reverse rotation control) at the time of creep. The control device 13 reverses the traverse guide 33 at the second reverse position in the traverse direction (Wb/2 in FIG. 7(a)) in the second reverse rotation control (second reverse rotation). Process). In the second reverse rotation control, the time from the start of deceleration of the traverse guide 33 to the completion of re-acceleration is taken as the second reverse rotation time (Trb). In addition, the traverse guide 33 has a region that moves in the traverse direction as a reversal region during the period from the start of deceleration to the completion of re-acceleration. The width of the inversion region in the second inversion control is, for example, Wt (refer to FIG. 7(a)).

As shown in FIG. 7( a ), the control device 13 extends the second inversion time longer than the first inversion time (Trb>Tra). From another viewpoint, the control device 13 accelerates and decelerates the traverse guide 33 more slowly during the second reverse rotation control than during the first reverse rotation control. More specifically, compared with the maximum value of the acceleration in the first inversion time (set to Aa) in the first inversion control, the acceleration in the second inversion time in the second inversion control is reduced. The maximum value of acceleration (set as Ab) (refer to Fig. 8(a)). In other words, compared with the time average of the acceleration in the first inversion time during the first inversion control, the time average of the acceleration in the second inversion time in the second inversion control is reduced.

Thereby, even if the traverse width is different between the normal state and the creep state, the traverse period can be made equal (refer to FIG. 7(a)). That is, the variation of the winding ratio can be suppressed. In addition, the control device 13 makes the traverse speed other than the reverse control time equal to the creep speed during normal time and creep (refer to FIG. 7(b)). Furthermore, in the second reverse rotation control, when the control device 13 starts deceleration of the traverse guide 33 until the half time (Trb/2) of the second reverse rotation time has elapsed, the control device 13 causes the traverse guide to be guided. The traverse motor 31 is controlled in such a manner that the traverse motor 33 is located at the second reverse position.

By performing the above-mentioned control, the yarn Y is wound on the winding package Pw as shown in Fig. 9(a). That is, among the yarns Y, the portion (the yarn Y3 ) wound around the winding package Pw during creep is reversed in the traverse direction at the point 107 . The point 107 is located at the same position as the above-mentioned point 104 in the direction of the rotation angle. In addition, during the second inversion control (that is, when the traverse guide 33 is moving in the above-mentioned inversion region), the yarn Y3 is wound around the winding package Pw in an arcing manner (please refer to the ninth The hatched area 201) of Fig. (a). In addition, since the traverse speed other than the reverse control time is equal to the normal time and the creep time, the winding cross angle other than the reverse rotation control time is equal to the normal time and the creep time. Thereby, the yarn Y3 is wound along the above-described path 105 on the inner side in the traverse direction than the region 201 . That is, in the present embodiment, the precise winding is normally performed, and the shape disturbance of the surface of the winding package Pw can be suppressed.

In addition, as described above, when the traverse guide 33 is started to decelerate until the half time (Trb/2) of the second inversion time has elapsed, the traverse guide 33 is located at the second inversion position. Therefore, the reversed portion of the yarn Y3 has a symmetrical shape with the center axis of the winding package Pw as the center line. That is, the inverted portion of the wire Y3 can be formed neatly and beautifully.

In addition, in the control device 13, the larger the creep amount, the wider the width of the reversal region in the traverse direction (refer to FIG. 8(b)). For example, when the creep amount is ΔW1 larger than ΔW, the control device 13 sets the width of the inversion region to Wt1 larger than Wt (refer to FIGS. 9( a ) and ( b )). That is, when the second inversion time is lengthened by narrowing the traverse width during creep, the traverse guide 33 that can move in the traverse direction during the second inversion control is widened. area. Therefore, it is possible to suppress the traverse guide 33 from being located in a narrow region in the traverse direction for a long period of time. In addition, in this case, the arc drawn when the yarn Y3 is wound on the winding package Pw is enlarged (refer to the area 202 in FIG. 9(b)).

As described above, the second inversion time is longer than the first inversion time. In this way, by actively lengthening the reversal time during creep, the movement period of the traverse guide 33 during creep can be increased. Thereby, the movement period of the traverse guide 33 can be made equal to the normal time and the creep time. Therefore, the variation of the winding ratio can be prevented.

Furthermore, since the traverse period during creep can be adjusted by adjusting the second reversal time in this way, the moving speed of the traverse guide 33 can be adjusted to be the same as that of the creep during the time other than the reversal. time is equal. Therefore, the angle of the yarn Y wound on the surface of the winding package Pw can be aligned. Therefore, the shape disturbance of the surface of the winding package Pw can be suppressed.

In addition, the larger the creep amount, the wider the width of the reversal region. That is, when the second inversion time is increased by narrowing the traverse width during creep, the region in which the traverse guide 33 can move in the second inversion control is widened. Therefore, it is possible to suppress the traverse guide 33 from being located in a narrow region in the traverse direction for a long period of time. Therefore, the yarn Y can be suppressed from being wound intensively in a narrow area on the surface of the winding package Pw.

In addition, the time from the start of deceleration of the traverse guide 33 until the traverse guide 33 reaches the second reverse position can be equal to the time until the traverse guide 33 leaves the second reverse position until the re-acceleration is completed. Thereby, the shape of the reversed portion of the yarn Y can be set to a symmetrical shape with the central axis of the winding package Pw as the center line (that is, the reversed portion can be formed neatly). Therefore, the shape disorder of the reversed portion of the surface of the winding package Pw can be suppressed.

In addition, the control device 13 performs control based on information on the relationship between the rotation angle of the winding bobbin Bw and the position of the traverse guide 33 . Thereby, compared with the case of controlling using a complicated mechanical structure, for example, while maintaining a winding ratio constant, creep can be performed, and complicated operation|movement can be made easy. In addition, by overwriting this information, it is possible to easily adjust the position, speed, etc. of the traverse guide 33 during the second inversion control.

In addition, the traverse motor 31 is configured to be capable of forward rotation and reverse rotation. Thereby, the traverse guide 33 can be reciprocated by the forward and reverse driving of the traverse motor 31 . Therefore, the reversal position, timing, and the like of the traverse guide 33 can be finely controlled by the control unit. Therefore, fine control of creep can be easily performed.

In addition, by stretching the portion of the endless belt 32 to which the traverse guide 33 is attached to be linearly driven to reciprocate, the traverse guide 33 can be easily linearly reciprocated. Therefore, the yarn Y can be easily and neatly wound on the surface of the winding package Pw.

Next, a modified example in which the above-described embodiment is added and changed will be described. However, those having the same configuration as those of the above-described embodiment are denoted by the same reference numerals and their descriptions are appropriately omitted.

(1) In the above-described embodiment, the control device 13 is set to perform the acceleration and deceleration of the traverse guide 33 gradually during the second reverse rotation control as compared with the first reverse rotation control, but the Not limited by this. For example, as shown in FIGS. 10(a), (b) and 11, the control device 13 may set the maximum value of the acceleration during the second inversion time during the second inversion control as It is equal to the maximum value of the acceleration in the first reverse rotation time during the first reverse rotation control. In addition, the control device 13 may accelerate the traverse guide 33 after stopping for a predetermined time at the second reverse position in the traverse direction. In this way, the second inversion time may be set to be longer than the first inversion time. When the second inversion control in the above-mentioned embodiment is defined as A control, and the second inversion control in the above-mentioned modification (Fig. 10(a), (b) and Fig. 11) is defined as B control, the control The device 13 may be controlled as follows. That is, the control device 13 may perform only the A control as the second inversion control in the winding operation, or only the B control. Alternatively, the control device 13 may perform the combination of the A control and the B control during the winding operation. More specifically, the control device 13 may repeatedly perform the A control and the B control in a specific pattern as the second inversion control. As an example of the above repetition, the control device 13 may alternately perform the A control and the B control.

(2) In the above-described embodiments, the larger the creep amount, the wider the width of the reversal region of the traverse guide 33 in the traverse direction, but it is not limited to this. The width of the reversal region may be kept constant regardless of the creep amount.

(3) In the above-described embodiments, the control device 13, in the second reverse rotation control, is set so as to start the deceleration of the traverse guide 33 until half of the second reverse rotation time has elapsed. The traverse motor 31 is controlled so that the traverse guide 33 is located at the second reverse position. But it is not limited by this. For example, in the second reverse rotation control, the control device 13 may perform a control such as abruptly decelerating the traverse guide 33 and then gradually re-accelerating. Alternatively, in the second reverse rotation control, the control device 13 may perform control such as decelerating the traverse guide 33 gradually, and then accelerating the traverse guide 33 abruptly.

(4) In the above-described embodiments, the memory unit 19 of the control device 13 stores both the table and the calculation formula as the rotation angle of the winding bobbin Bw and the traverse guide. 33 is information on the relationship between the positions in the traverse direction, but is not limited to this. For example, in the memory unit 19, only calculation expressions for calculating the position and/or speed of the traverse guide 33 may be stored in accordance with the rotation angle of the winding bobbin Bw. That is, during the winding operation, the control device 13 may constantly calculate the position and/or speed of the traverse guide 33 based on the rotation angle of the winding bobbin Bw and the calculation formula. Alternatively, only a table may be stored in the memory unit 19 as information on the relationship between the rotation angle of the winding bobbin Bw and the position, speed, and acceleration of the traverse guide 33 .

(5) In the above-described embodiments, the traverse guide 33 is attached to the endless belt 32, but it is not limited to this. For example, the traverse guide 33 may be attached to the front end portion of the swing drive arm (refer to Japanese Patent Application Laid-Open No. 2007-153554, etc.). Alternatively, the traverse guide 33 may be reciprocatingly driven by a linear motor or the like.

(6) In the above-described embodiments, the traverse guide 33 is driven by a driving source capable of forward and reverse driving, but it is not limited to this. For example, the rewinder 1 may be a cam-type traverse device provided with a motor that is rotationally driven in a single direction as a drive source.

(7) In the above-described embodiments, the rotational speed of the winding bobbin Bw is set to be constant, but it is not limited to this. That is, the control device 13 only needs to control the winding motor 22 and the traverse motor 31 so as to keep the winding ratio constant in order to perform precise winding, so that the winding drum can be changed during the winding operation. The rotational speed of the tube Bw.

(8) The present invention is not limited to the rewinding machine 1, and can be applied to various yarn winding machines.

1: Rewinder (silk winding machine) 11: Feeding Department 12: winding part 13: Control device (control unit) 14: Machine 15: Silk Guide 16: Guide roller 17: Tension sensor 18: Roller drive motor 19: Memory Department 21: Cradle arm 22: Winding motor (bobbin driving part) 24: Contact pressure roller 31: Traverse motor (guide drive part) 32: endless belt (belt member) 33: Traverse guide 34: Pulley 35: Pulley 36: Drive pulley 101～104, 106, 107: (reversal) point 105: Winding Path 201, 202: Shaded slashed area Aa: The maximum value of the acceleration in the first reversal time Ab: The maximum value of the acceleration during the second reversal time Bs: Feeding bobbin Bw: Winding bobbin (bobbin) Ps: Feeding wire package Pw: winding package (roll package) Pw1: The end face of the winding package (Pw) T: Time for the traverse guide (33) to move from the right end to the left end Tr: reversal time Tra: 1st reversal time Trb: 2nd reversal time V: specific speed of traverse guide (33) Va: Traverse speed of the traverse guide (33) at normal times Vb: Traverse speed of the traverse guide (33) during creep W: traverse width of traverse guide (33) Wa: 1st width Wb: 2nd width Wt, Wt1: The width of the inversion area in the second inversion control ΔW, ΔW1: the distance between the reversal position of the traverse guide (33) in normal times and the reversal position during creep Y(Y1～Y3): silk

Fig. 1 is a schematic view of the rewinder of this embodiment viewed from the front. Fig. 2 is a diagram showing the electrical configuration of the rewinder. Fig. 3 (a) is a graph showing the relationship between the position of the traverse guide and time; (b) is a graph showing the relationship between the speed and time of the traverse guide. Fig. 4(a) and (b) are explanatory diagrams of precise winding; (c) is an explanatory diagram of creep. Fig. 5 (a) is a graph showing the relationship between the speed of the traverse guide and time; (b) is an explanatory diagram showing the path of the wire on the surface of the winding package. Fig. 6 (a) is a graph showing the relationship between the speed of the traverse guide and time; (b) is an explanatory diagram showing the path of the wire on the surface of the winding package. Fig. 7 (a) is a graph showing the relationship between the position of the traverse guide and time; (b) is a graph showing the relationship between the speed of the traverse guide and time. Fig. 8 (a) is a graph showing the relationship between the acceleration of the traverse guide and time; (b) is a graph showing the relationship between the width of the reversal region and the creep amount. Fig. 9(a) and (b) are explanatory diagrams showing the path of the yarn on the package surface. Fig. 10(a) is a graph showing the relationship between the position and time of the traverse guide in the modification example; (b) is a graph showing the relationship between the speed and time of the traverse guide similarly. FIG. 11 is a graph showing the relationship between the acceleration of the traverse guide and the time in the modification shown in FIG. 10 .

Tra: 1st reversal time

Trb: 2nd reversal time

Va: Traverse speed of the traverse guide (33) at normal times

Vb: Traverse speed of the traverse guide (33) during creep

Wa: The first width

Wb: 2nd width

Wt: The width of the inversion area in the second inversion control

Claims (20)

A yarn winding machine that can be wound around a rotating bobbin while traversing a moving wire by a traverse guide, and performs precise winding as the rotational speed of the bobbin The yarn winding machine which can form a package while maintaining a winding ratio to a ratio of the number of reciprocating movements per unit time of the traverse guide at a constant level, is characterized by comprising: a guide driving part, and a control unit; the guide drive unit is used to reciprocate the traverse guide in a specific traverse direction, and can change the reversal position of the traverse guide during the winding operation of the wire The above-mentioned control part can execute the first reverse rotation control and the second reverse rotation control; the first reverse rotation control is to control the above-mentioned guide driving part to move to the outside at a specific speed in the above-mentioned traverse direction The above-mentioned traverse guide decelerates and reverses inward at a specific first reversal position, and then accelerates to the above-mentioned specific speed; the second reversal control is to control the above-mentioned guide drive part, in the above-mentioned traverse In the moving direction, the above-mentioned traverse guide that is moving to the outside at a specific speed is decelerated, and is reversed inward at a second reversal position that is located more inward than the above-mentioned first reversal position, and then accelerated to the above-mentioned specific speed. In the execution of the above-mentioned precise winding, the second inversion time in the above-mentioned second inversion control, which is the time from the start of the deceleration of the above-mentioned traverse guide to the completion of the re-acceleration, is set as the ratio of In the above-mentioned first reverse rotation control, the first one which is the time from the start of the deceleration of the traverse guide to the completion of the re-acceleration The inversion time is longer; in the second inversion control, after the traverse guide is maintained in a stopped state at the second inversion position in the traverse direction for a predetermined period of time, the traverse guide is made Accelerate again. The wire winding machine according to claim 1, wherein the maximum value of the acceleration of the traverse guide during the second reversal time is set to be the same as the acceleration during the first reversal time. The maximum values of the acceleration of the above-mentioned traverse guidance are equal. The yarn winding machine according to claim 1, wherein the control unit is such that the distance between the first reversal position and the second reversal position in the traverse direction is longer. In the second inversion control, the width of the region in which the traverse guide moves in the traverse direction during the second inversion time is enlarged. The yarn winding machine according to claim 2, wherein the control unit is configured such that the distance between the first reversal position and the second reversal position in the traverse direction is longer. In the second inversion control, the width of the region in which the traverse guide moves in the traverse direction during the second inversion time is enlarged. The yarn winding machine according to claim 1, wherein the control unit is adapted to control the horizontal direction from the horizontal in the second inversion control. When a half time of the second reversal time has elapsed after the deceleration of the traverse guide is started, the traverse guide is controlled to be positioned at the second reversal position in the traverse direction to control the guide drive. department. The yarn winding machine according to claim 2, wherein the control unit is such that in the second reverse rotation control, the second reverse rotation time elapses after the deceleration of the traverse guide is started. During half of the time, the guide drive unit is controlled so that the traverse guide is positioned at the second reverse position in the traverse direction. The yarn winding machine according to claim 3, wherein in the second reverse rotation control, the second reverse rotation time has elapsed after the deceleration of the traverse guide is started. During half of the time, the guide drive unit is controlled so that the traverse guide is positioned at the second reverse position in the traverse direction. The yarn winding machine according to claim 4, wherein in the second reverse rotation control, the second reverse rotation time has elapsed after the deceleration of the traverse guide is started. During half of the time, the guide drive unit is controlled so that the traverse guide is positioned at the second reverse position in the traverse direction. The yarn winding machine according to claim 1, further comprising a bobbin driving unit for rotationally driving the bobbin; The control part is provided with a memory part for memorizing information about the relationship between the rotation angle of the bobbin and the position of the traverse guide in the traverse direction; the control part is controlled according to the information stored in the memory part The bobbin drive unit and the guide drive unit. The yarn winding machine according to claim 2, further comprising a bobbin driving part for rotationally driving the bobbin; the control part has a memory part for memorizing the rotation angle of the bobbin and The information on the relationship between the positions of the traverse guide in the traverse direction; the bobbin driving part and the guide driving part are controlled based on the information stored in the memory part. The yarn winding machine according to claim 3, further comprising a bobbin driving part for rotationally driving the bobbin; the control part has a memory part for memorizing the rotation angle of the bobbin and The information on the relationship between the positions of the traverse guide in the traverse direction; the bobbin driving part and the guide driving part are controlled based on the information stored in the memory part. The yarn winding machine according to claim 4, further comprising a bobbin driving part for rotationally driving the bobbin; The control part is provided with a memory part for memorizing information about the relationship between the rotation angle of the bobbin and the position of the traverse guide in the traverse direction; the control part is controlled according to the information stored in the memory part The bobbin drive unit and the guide drive unit. The yarn winding machine according to claim 5, further comprising a bobbin driving part for rotationally driving the bobbin; the control part has a memory part for memorizing the rotation angle of the bobbin and the relationship between them. The information on the relationship between the positions of the traverse guide in the traverse direction; the bobbin driving part and the guide driving part are controlled based on the information stored in the memory part. The yarn winding machine according to claim 6, further comprising a bobbin driving part for rotationally driving the bobbin; the control part has a memory part for memorizing the rotation angle of the bobbin and The information on the relationship between the positions of the traverse guide in the traverse direction; the bobbin driving part and the guide driving part are controlled based on the information stored in the memory part. The yarn winding machine according to claim 7, further comprising a bobbin driving part for rotationally driving the bobbin; The control part is provided with a memory part for memorizing information about the relationship between the rotation angle of the bobbin and the position of the traverse guide in the traverse direction; the control part is controlled according to the information stored in the memory part The bobbin drive unit and the guide drive unit. The yarn winding machine according to claim 8, further comprising a bobbin driving part for rotationally driving the bobbin; the control part has a memory part for memorizing the rotation angle of the bobbin and The information on the relationship between the positions of the traverse guide in the traverse direction; the bobbin driving part and the guide driving part are controlled based on the information stored in the memory part. The wire winding machine according to any one of claims 1 to 16, wherein the guide driving unit has a driving source configured to be capable of forward and reverse driving. The wire winding machine according to claim 17, wherein the guide drive unit includes a belt member on which the traverse guide is attached and which is reciprocally driven by the drive source. A wire winding method is to guide the moving wire by traversing The winding ratio is the ratio of the rotational speed of the bobbin and the number of reciprocating movements per unit time of the traverse guide while performing precise winding while traversing the bobbin while it is being rotated. The wire winding method capable of forming a package while maintaining a constant value is characterized by: performing a first inversion process and a second inversion process; the first inversion process is in a specific traverse direction, The above-mentioned traverse guide that is moving to the outside at a specific speed is decelerated, reversed inward at a specific first reversal position, and then accelerated to the above-mentioned specific speed; the second reversal process is performed in In the above-mentioned traverse direction, the above-mentioned traverse guide, which is moving outward at the above-mentioned predetermined speed, is decelerated, and the above-mentioned traverse guide is reversed inward at a second reversal position located inwardly of the above-mentioned first reversal position, and then Re-accelerate to the above-mentioned specific speed; in the execution of the above-mentioned precise winding, the second inversion in the above-mentioned second inversion process is taken as the time from the start of the deceleration of the above-mentioned traverse guide to the completion of the re-acceleration. The time is set to be longer than the first inversion time, which is the time from the start of deceleration of the traverse guide to the completion of re-acceleration in the above-mentioned first inversion process; in the above-mentioned second inversion process, make The traverse guide is re-accelerated after the traverse guide is maintained in a stopped state at the second reverse position in the traverse direction for a predetermined period of time. The yarn winding method according to claim 19, wherein the acceleration of the traverse guide during the second reversal time is The maximum value is set to be equal to the maximum value of the acceleration of the traverse guide during the first reversal time.

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