JP2750623B2 - Roving winding method - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roving method in a roving machine.

2. Description of the Related Art Conventionally, a full bobbin wound with a roving machine (hereinafter referred to as a full bobbin) is hung on a bobbin carriage and conveyed to a spare rail of a spinning creel. There is known a roving bobbin automatic transfer system that replaces a full bobbin with a new bobbin, removes the remaining roving from the small bobbin with a roving stripper, and returns the bobbin to the roving machine as an empty bobbin. In this system, in a spinning creel having two rows on one side, Shinotsu is automatically performed (Japanese Patent Application Laid-Open Nos. 62-53425 and 64-52828). In the outlet position, the outlet nozzle of the Shinotsu device performs a suction operation in opposition to the outer periphery of the full bobbin taken down to the lower position at a predetermined height position. Therefore, if the roving end of the full bobbin is not located at the height position facing the suction port of the discharge nozzle at the discharge position when the roving end of the full bobbin is lowered to the lower position, the discharging operation is performed properly. Absent. For this reason, conventionally, when winding on a full bobbin with a roving machine, the machine stand is stopped when the roving length reaches the height position after the total length of the roving exceeds a target value.

Problems to be Solved by the Invention According to the above, the bobbin rail height when the entire roving yarn reaches the target value is not constant due to an error in roving winding tension and the like. In addition, when the bobbin rail is lowered for doffing after the full load is stopped, the bobbin rail may be stopped halfway up in order to prevent the bobbin rail from being switched up and down. When the full length is reached immediately after passing the height position on the way, the bobbin rail is further reciprocated approximately once from the spinning state and stopped at the height position. This one round trip (for two layers)
When the roving length was set to 70 to 80 yards, the yarn was considerably extra-rolled, and this maximum variation occurred in the full bobbin for each doffing. By the way, since the Shino splicing device splices one row of creels on one side of the spinning creel simultaneously on both sides of the spinning machine, the number of full bobbins prepared in advance on the spare rail is half the number of spindles of the spinning machine. is there. For example, when the number of spindles of the spinning frame is set to eight times the number of spindles of the roving frame, full bobbins for four roving frames are prepared on the spinning spare rail. At this time,
As described above, since the full bobbin length of the full bobbin varies considerably, the amount of remaining roving in the small bobbin greatly varies. When processing the small bobbin with the remaining roving amount in this manner with the low-bin stripper, the processing time must also be set according to the small bobbin with a large amount of the remaining roving, so that the bobbin stripping time becomes longer and the efficiency is reduced. bad. In addition, since several tens of yards of the remaining roving remain, the amount of the roving spun spun yarn tends to be increased.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for winding a roving yarn of a roving machine which minimizes the waste of the spun roving yarn described above, and a plurality of bobbin shoulders for setting up and down switching positions of bobbin rails. Prepare the shape data, and at the appropriate timing until the bobbin is full, the average layer thickness of the roving yarn and the remaining spinning length up to the full bobbin, which are obtained based on the bobbin winding diameters of the past several layers until the timing. And, based on the bobbin shoulder shape data prepared in advance, a final roving end height position at the time of full bobbin is predicted and calculated, and the final roving end height position is compared with a preset target height position to obtain a final roving end position. The bobbin shoulder shape data at which the yarn end height position becomes the target height position is selected from the plurality of bobbin shoulder shape data, and the lifting / lowering switching position is controlled based on the selected bobbin shoulder shape data to control when the bobbin is full. Last The roving end height position is set to the target height position.

According to the method, at an appropriate timing until the full bobbin, the average layer thickness of the roving yarn determined based on the bobbin winding diameter of the past several layers until the timing, and the remaining spinning length to the full bobbin Then, based on the bobbin shoulder shape data, if it is wound as it is, the height position of the final roving end when the bobbin is full is calculated, and the final roving end height position is compared with the target height position. This calculation and comparison are repeated to select the bobbin shoulder shape data at which the final roving end height position becomes the target height position, and based on the selected bobbin shoulder shape data, perform the bobbin rail up / down switching, and perform The final roving end height position is set as the target height position.

First Embodiment In FIG. 1, a driving shaft 3 is driven to rotate by a main motor 1 via a belt transmission mechanism 2, and a twist change gear 4 is driven by the driving shaft 3.
The front roller 8 of the draft part 7 is rotatably driven via a gear train 5 incorporating a gear train and a belt transmission mechanism 6. Further, the top shaft 10 is driven from the driving shaft 3 via the belt transmission mechanism 9, and the driving gear 11 integrated with the top shaft 10 meshes with the driven gear 13 on the top of the gutter flyer 12 so as to rotate the flyer 12. is there.

On the other hand, a bobbin shaft 23 integrally fixed with a gear 22 meshing with a bobbin wheel 21 rotatably supported on a bobbin rail 20 is connected to a connection shaft 25 via a universal joint 24. The gear 26 integral with the connecting shaft 25 meshes with the output gear 31 of the differential gear mechanism 30. The external gear 32 of the differential gear mechanism 30 meshes with the gear 14 at the driving shaft 3 end. One clutch plate of an electromagnetic clutch 34 is integrally connected to the input shaft 33 of the differential gear mechanism 30, and the other clutch plate is connected to the bobbin wheel 2 by a control device 100 described later.
It is configured to rotate via a belt transmission mechanism 35 between itself and a servo motor (digital control motor) SM that independently controls the rotation. Therefore, when the electromagnetic clutch 34 is connected, the rotation of the driving shaft 3 and the control rotation of the servo motor SM are combined by the differential gear mechanism 30, and the bobbin is rotated at a high speed relative to the flyer rotation by the control rotation of the servo motor SM. The roving yarn R is wound around the bobbin 15 by rotating the wheel 21.

Next, the lifting / lowering switching gear device 40 of the bobbin rail 20 is
As shown in the figure, two drive gears 42, 43 having different numbers of teeth connected to a transmission shaft 41 rotated by the servomotor SM.
Is provided in the gear box 44. In the gear box 44, driven gears 47 and 48 are rotatably supported around the left and right support shafts 45 and 46 in opposition to the drive gears 42 and 43, respectively. The large-diameter drive gear 42 is a large-diameter driven gear
47 is directly meshed with the small-diameter drive gear 43 via a small-diameter driven gear 48 and an intermediate gear 49 opposed thereto, and the number of teeth of each of these gears is such that the two driven gears 47 and 48 rotate the same. The numbers are set so that they rotate in opposite directions. Between the two driven gears 47, 48, a switching wheel 51 rotatably and axially integrally fixed to a switching rod 50 supported slidably in the axial direction about the support shafts 45, 46. Are located. On the axially opposed surfaces of the switching wheel 51 and the two driven gears 47 and 48, mountain-shaped meshing teeth 52 are provided on the entire circumference,
When the switching wheel 51 meshes with one of the meshing teeth 52 of the driven gears 47 and 48, the rotation direction of the switching wheel 51 is reversed. A transmission gear 53 having a wide tooth width is integrally fixed to the outer periphery of the switching wheel 51. A shaft 55 is rotated from the transmission gear 53 via a gear train 54 (FIG. 1).
The pinion 58 of the lifter shaft 57 is rotated forward / reverse via the lifter shaft 57 so that the lifter rack 59 integrally fixed to the bobbin rail 20 is moved up and down.

Next, a switching drive device for moving the switching rod 50 in the axial direction.
60 will be described. As shown in FIG. 3, bearing bushes 62 are fixed to both sides of the box-shaped body 61 so as to face each other. On this bearing bush 62, a switching shaft 64 constituting a switching shaft 63 together with a locking body 65 described later is slidably supported in the axial direction. One end of the switching shaft 64 (the left side in FIG. 3) is
It is further protruded and connected to a piston rod 67 of a pneumatic cylinder (biasing means) 66 of both rods fixed to the body 61. Further, a flange member 68 is integrally screwed to the other end. The flange member 68 connects one end of the switching rod 50 to
It is integrally connected to another flange member 69 integrally connected in the axial direction. At the center of the switching shaft 64, locking portions 65a,
A locking body 65 formed with 65b is screwed together. An engagement switching device 70 is disposed below the locking body 65. In this engagement switching device 70, the locking levers 72R, 7R are mounted on the L-shaped bracket 70A fixed to the body 61 by pink 71.
2L is supported swingably facing left and right. The locking levers 72R, 72L are L-shaped as a whole,
Bird's beak-like stopper 72 that can be disengaged from a, 65b
a, 72b. A tension spring 73 is interposed between pins mounted in the middle of the lever portion 72c extending downward.
Below the tension spring 73, a guide wheel 74 that is rotatable forward (leftward in FIG. 4) from the bracket 70A is protrudingly provided at predetermined intervals vertically. The switching operation lever 75 is guided between the guide wheels 74. The switching operation lever 75 has a planar shape shown in FIG. 5, and push pins 76a and 76b capable of pressing the locking levers 72R and 72L on both sides are axially adjustable by a nut 77 on the front protruding portion 75a. It is attached. Also, the rear projection 75
b is integrally connected to a piston rod 79 of a pneumatic cylinder 78 mounted on the body 61. Further, on the lower surface of the body 61, when the stoppers 72a, 72b are engaged with the locking portions 65a, 65b of the locking body 65, the bobbin rail lifting / lowering changeover confirmation switch 80 is located at a position lateral to the lower end of the lever portion 72c. The switch is attached. The cylinders 66 and 78 are connected to a compressed air source via switching valves 81 and 82, respectively. Therefore, if the bobbin rail 20 is lowered in the state shown in FIGS. 3 and 2, when the bobbin rail 20 is switched to the ascending state, the compressed air is accumulated in the cylinder chamber on the front side (right side) of the cylinder 66, and will be described later. The locking lever 72L and the locking portion 65b are disengaged by a switching command from the control device 100, and the switching shaft 64 is moved leftward by using the spring property of the accumulated air to switch the switching wheel via the switching rod 50. 51 to left driven gear 47
In the reverse case (at this time, the switching drive 60
The stopper 72a is locked with the locking portion 65a, and the elevating switch gear device
40, when the switching wheel 51 is engaged with the left driven gear 47), pressurized air is accumulated in the cylinder chamber on the rear side (left side) of the cylinder 66 and urged rightward, and the stopper 72a and the locking portion 65a
With the lock. In this embodiment, a bobbin rail is provided by a lifting / lowering switching gear device 40 and a switching drive device 60.
Twenty lifting / lowering switching means are configured. Reference numerals 83 and 84 denote pressure sensors for confirming that pneumatic pressure is accumulated in the cylinder chamber of the pneumatic cylinder 66.

Next, control of the roving machine will be described. Pulse encoder on front roller shaft 8a integrated with front roller 8
PG1 is linked. The encoder PG1 outputs a pulse in proportion to the rotation angle of the front roller 8, and is a detecting means for detecting the rotation angle of the front roller. In addition, an absolute type pulse encoder PG3 that detects the rotation angle of the lifter shaft 57 is provided at the end of the lifter shaft 57 of the drive mechanism that rotates forward and backward for lifting the bobbin rail 20 from the lifting / lowering switching gear device 40 to the lifter rack 59. The detection value of this encoder PG3 is
Corresponds to the position in the vertical direction. Also, the front roller 8
A non-contact roving tension detecting device RT that detects the tension of the roving R is disposed between the roving yarn R and the flyer top. The roving tension detecting device RT is configured such that the position of the roving is read by a large number of photoelectric sensors as disclosed in, for example, Japanese Patent No. 1472672.

The control device 100 mainly includes a known microcomputer 101. The microcomputer 101 reads and stores a central processing unit CPU 102, a main program (not shown) for controlling the rotation of the bobbin wheel 21 and raising and lowering the bobbin rail 20, and a correction program for the elevation switching position shown in FIG. It consists of a dedicated memory ROM 103 and a rewritable memory RAM 104 for storing various data and calculation results,
The CPU 102 exchanges data and commands with the input / output interface I / O 105. As shown in FIG. 8, a predetermined memory area in the RAM 104 stores a plurality of sets of function formulas of the bobbin winding diameter D indicating the bobbin shoulder shape corresponding to the upper shoulder B1 and the lower shoulder B2. Shape data table 11
3 has been assigned. The bobbin winding diameter area 114 stores the bobbin winding diameter calculated in the main program for a predetermined layer (eight layers in this embodiment) from the present time to the past.
(FIG. 9) is also allocated in the RAM 104. The I / O 105 includes data required for calculating the bobbin winding diameter (the bobbin diameter d ₀ at the start of winding, the thickness (constant increment) Δd of one layer of roving, a coefficient required for calculating by the roving tension detecting device), And data indicating the bobbin winding diameter shape (function formula stored in the shoulder shape data table, layer pitch h, final target winding diameter De, roving target height position Ye, full length Le ± a yard), Input means (keyboard) 106 for inputting an initial value of the division ratio kp set at the time of winding and spinning conditions (count, twist number, fiber type, etc.)
Is connected, the roving tension signal from the roving tension detecting device RT, the detection value corresponding to the bobbin rail position from the encoder PG3, and the switching confirmation from the bobbin rail up / down switching confirmation switch 80 via the sequencer 108. The signal and the signal from the counter unit 115 for dividing the pulse output from the encoder PG1 are input, and the signal from the counter unit 115 accumulates the roving spinning length. A display means (display) 107 for displaying the contents of the input data and the like is connected, and a switching command for driving the cylinder 78 of the switching drive device 60 is output via the sequencer 108.

A frequency divider 109 for setting the frequency division ratio kp is provided in the control device 100, and is connected to the CPU. This division ratio kp is
It corresponds to the rotation angle ratio of the bobbin rotation angle to the rotation angle of the front roller 8 for performing appropriate winding with respect to the increase in the bobbin winding diameter D, and the pulse train from the pulse encoder PG1 of the front roller 8 An output pulse train multiplied by a dividing ratio kp (0.9999 or less, which is indicated by a function of the bobbin winding diameter D) is input to the servo amplifier 111 for driving the servo motor via the gate circuit 110.

Gate circuit 110 is a pulse encoder PG1 during normal operation.
When the servo motor SM is to be driven when there is no input from the pulse encoder PG1, for example, after the roving bobbin becomes full and stops When lowering only the bobbin rail 20 for doffing, the servo motor SM is driven by a pulse from a built-in pulse generator in accordance with a command from the sequencer 108.

The servo motor SM is connected to a pulse encoder PG2 for detecting the rotation angle of the rotation shaft, and the pulse encoder PG2
A position loop feedback control system 112 in which a feedback pulse is sent between the servo amplifier 111 and the servo amplifier 111 is configured.

First, the rotation control of the bobbin wheel 21 and the bobbin rail 20
The lifting control is described. In this embodiment, the bobbin shoulder shape preset at the beginning of winding is defined as l ₁ = f ₁ (D) and l ₂ (D) among the plurality of functional expressions, and the bobbin rail 20 is moved from one shoulder. A description will be given of one stroke that rises or falls toward the other shoulder. In the frequency divider 109, a pulse frequency division ratio kp corresponding to the bobbin winding diameter D to be newly wound is set from the CPU 102, and the front roller 8
An output pulse obtained by multiplying a pulse corresponding to a certain rotation angle by the frequency division ratio kp is input to the servo amplifier 111 via the gate circuit 110. The servo amplifier 111 rotates the servo motor SM by a predetermined angle so as to follow this input pulse, and the rotation of the servo motor SM causes the input shaft 33 of the differential gear mechanism 30 to rotate, thereby synthesizing with the constant rotation of the main motor 1. Then, the bobbin wheel 21 is rotated by an appropriate rotation angle corresponding to the front roller rotation angle θr in accordance with the bobbin winding diameter D, and the roving yarn R spun from the front roller 8 rotated by the rotation angle θr is appropriately rotated. Take up. When the bobbin rail 20 starts ascending or descending, the next up / down switching position is calculated, and the rotation angle of the lifter shaft 57 corresponding to this is calculated and stored in the RAM 104. Next, the tension of the roving R between the front roller 8 and the flyer top is read from the roving tension detector RT. With this tension signal, the thickness (constant increment) Δd
Is calculated by multiplying the deviation between the preset tension target value and the detected value by a constant coefficient. Next, from the correction value ε, the currently wound bobbin winding diameter D, and the constant increment Δd, the next bobbin winding diameter D is calculated as follows: D (next bobbin winding diameter) = D (current bobbin winding diameter) +
Calculate and predict 2 × (Δd−ε). Next, the next pulse division ratio kp is calculated based on the next bobbin winding diameter D and stored in the RAM 104. Thereafter, as soon as the input detection value corresponding to the vertical position of the bobbin rail 20 from the encoder PG3 matches the calculated value corresponding to the next vertical switching position, a switching command is output immediately.

The up / down switching operation when the bobbin rail 20 is output in response to the switching command will be described with reference to a case where the bobbin rail 20 is switched from down to up.
When the bobbin rail 20 is lowered, the up / down switching gear device 40 is in the state shown in FIG. 2 and the switching drive device 60 is in the state shown in FIG. 3, so that before the switching signal is output, Supplying compressed air, accumulating pressure and switching direction (left side in Fig. 3)
To be urged. Then, the switching valve 82 switches the piston rod 79 to the left direction via the sequencer 108 in response to the switching signal. Then, the switching operation lever 75 moves leftward,
The push pin 76b comes into contact with the locking lever 72L, and the engagement between the stopper 72b and the locking portion 65b is released. Then, the stored compressed air acts as if it were a spring, instantaneously moves the piston rod 67 to the left, and engages the switching wheel 51 in the state of FIG. Output shaft 55
Is switched, and the bobbin rail 20 is raised.
When the locking lever 72L is disengaged and the switching shaft 64 moves leftward, the stopper 72a of the locking lever 72R rotates clockwise by the force of the spring 73 to engage with the locking portion 65a.

When the right locking lever 72R engages with the locking step 65a in this manner, the right-side up / down switching confirmation switch (proximity switch)
80 confirms this, and updates the pulse division ratio kp of the frequency divider 109 to that stored in the RAM 104.

This operation is repeated to take up the roving yarn. However, since the upper and lower switching positions l ₁ and l ₂ are calculated in accordance with the above-described function formula every time the up / down switching is performed, the bobbin rail 20 is increased as the bobbin winding diameter D increases.
Is gradually shortened. As a result, the upper and lower shoulders B1, B2 are formed according to the input data.

The roving yarn R is wound around the bobbin 15 in this way, and from the encoder PG1 connected to the front roller 8 on the way,
A pulse signal (spin length data) input to the I / 0105 via the counter unit 115 is counted in the control device 100, and the remaining spin length is calculated from the data and the full length Le, and the set value is calculated. When Q is reached, interrupt processing is performed in the steps shown in FIG. Bobbin rail as shown in Fig. 10
The origin 0 of 20 corresponds to the upper end of the roving of the bobbin 15,
It is assumed that the coordinate direction is positive downward from the origin 0 of the roving bobbin, and that the interrupt processing is performed while the bobbin rail 20 is moving up. The proximity direction of the bobbin rail 20 is
I understand at 80. Bobbin winding diameter D ₁ of the time this is already stored computed by the formula, also the height position of the bobbin rail 20 Y ₁ by a pulse from the encoder PG3 (which corresponds to the winding height of Soitotan) I understand. Then, the final roving end height position Yn and the bobbin winding diameter Dn when the remaining spinning length Q is spun by the current shoulder shape function formula are calculated in steps. First because the bobbin winding diameter D ₁ and made up of a bobbin winding diameter of the past several layers worth are stored in the RAM 104, determine the average layer thickness Δda in consideration of tension from the bobbin reel diameter data. If it is assumed that the coil will be wound with this average layer thickness, the remaining spinning length Q and average layer thickness Δ
da, layer pitch h, and upper and lower shoulder shape function f
_{From 1} (D) and f ₂ (D), how many layers can be wound with the remaining spinning length Q from now is calculated.

When lets loose after n layer, the final bobbin winding diameter Dn at this _{time, Dn = D 1 +2 (n} -1) Δda roving end height position Yn at that time, in the bobbin rail 20 is elevated Yn = f ₁ (Dn) + (Length to wind up with Dn) · h / (π · Dn) While the bobbin rail 20 is descending, Yn = f ₂ (Dn) − (Length to wind up with Dn) · h / (π · Dn In this way, the final bobbin winding diameter Dn and the roving end height Yn are obtained.

Next, in a step, it is determined whether or not the roving end height position Yn is within the allowable range of the preset target height position Ye, and whether the bobbin winding diameter Dn is within the allowable range of the target winding diameter De. If so, the program returns to the main program with the shoulder shape data as it is, and continues winding. Otherwise, another shoulder shape function formula (for example, l ₁ = The step is executed again using f ₃ (D), l ₂ = f ₄ (D)). This process is repeated, and the final roving end height position Yn falls within the allowable value of the target height position Ye, and the bobbin winding diameter Dn also selects the shoulder shape function formula that falls within the allowable value of the target winding diameter De, When this is completed, the program returns to the main program. In the main program, the shoulder shape function formula set at the start of winding is replaced with another function formula, so that the vertical switching position for forming the shoulder portion thereafter is corrected. And since the full length has a range of Le ± a, after the spun length becomes Le-a, the roving end height position is set to the target height position Ye.
When the roving machine stops when it becomes, the final roving height position,
The bobbin winding diameter and the full length can be kept within allowable values, respectively.

It should be noted that even when the interruption operation is performed during the lowering of the bobbin rail 20, it can be applied only by correcting a part of the above equation.

According to the method, at an appropriate timing until the bobbin becomes full, the average layer thickness of the roving yarn determined based on the bobbin winding diameters of the past several layers until the timing and the remaining amount until the bobbin becomes full Based on the spun length and bobbin shoulder shape data, the height position of the final roving end at the time of full bobbin is predicted and calculated, and the final roving end height position is compared with the target height position to obtain the final roving end height. The bobbin shoulder shape data at which the height position is the target height position is selected, and the bobbin rail is switched up and down based on the selected bobbin shoulder shape data. Can always be adjusted to the target height position, and the roving length of the full bobbin can always be kept at the set length. Therefore, at the time of the splicing operation in the spinning machine, the end of the roving end of the full bobbin can be reliably discharged, and the remaining roving amount of the small ball bobbin at the time of performing the splicing and refilling in the spinning creel can be reduced. There is an advantage that the waste of the yarn can be reduced and the time for removing the remaining roving from the small bobbin can be shortened.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a drive mechanism of a roving machine suitable for carrying out the method of the present invention, FIG. 2 is a sectional view of a lifting / lowering switching gear device, FIG. 3 is a side view of a switching drive device, and FIG. FIG. 5 is a sectional view taken along the line IV-IV of FIG. 3, FIG. 5 is a plan view of the switching operation rod, FIG. 6 is a diagram showing the control device, FIG. Is a diagram showing a shoulder shape data table, FIG. 9 is a diagram showing a bobbin winding diameter area,
FIG. 10 is a view showing a bobbin. 12 ... flyer, 15 ... bobbin, 20 ... bobbin rail,
100: controller, Q: set value of remaining spinning amount, Yn: final roving end height position, Ye: target height position, f ₁ (D), f ₂
(D) ...... Functional expression showing bobbin shoulder shape

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hideki Hashimoto 1-2 Ishiodai, Kasugai-shi, Aichi 130-1 Town Ishiodai (72) Inventor Makoto Omori 6-24 Minamihonmachi, Tsushima-shi, Aichi (72) Invention Person Kenji Sasaki 82, Brahma, Fujishima-cho, Komaki-shi, Aichi Examiner Tetsuo Inoue (56) References JP-A-1-250423 (JP, A) JP-A 1-250424 (JP, A) JP-A 2-242925 ( JP, A) JP-A-63-190030 (JP, A) JP-A-61-7,024 (JP, A) JP-A-61-20044 (JP, Y2)

Claims (1)

(57) [Claims] In a bobbin lead type roving machine for performing bobbin forming by switching the bobbin rail up and down in accordance with an up / down switching position, a plurality of bobbin shoulders for setting a bobbin rail up / down switching position for winding a roving yarn. Prepare the shape data, and at the appropriate timing until the bobbin is full, the average layer thickness of the roving yarn and the remaining spinning length up to the full bobbin, which are obtained based on the bobbin winding diameters of the past several layers until the timing. And, based on the bobbin shoulder shape data prepared in advance, a final roving end height position at the time of full bobbin is predicted and calculated, and the final roving end height position is compared with a preset target height position to obtain a final roving end position. The bobbin shoulder shape data at which the yarn end height position is the target height position is selected from the plurality of bobbin shoulder shape data, and the lifting / lowering switching position is controlled based on the selected bobbin shoulder shape data, so that the bobbin shoulder shape data is set when the bobbin is full. Crude yarn winding method that the final roving end height position is characterized in that set to be the target height position.