JPS5932383B2 - Yarn winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a yarn winding device for a textile machine such as a drawing machine, a drawing false twister, and a spinning machine.

More specifically, the present invention relates to a yarn winding device that automatically transfers the yarn between the waist spool and the bobbin when starting up or replacing the bobbin. A waist spool is provided close to the end of the bobbin of the yarn winding device, and while the surface speed of the waist spool is synchronized with the winding surface speed of the bobbin, the yarn is moved between the waist spool and the bobbin by a guide. A winding device that performs the transfer is known from, for example, Japanese Patent Publication No. 52-38146. However, such a known yarn winding device uses a guide to draw the yarn between the waist spool and the bobbin, so the yarn tension may become abnormally high or An unstable region of tension occurs, where the tension becomes lower and lower. Therefore, this unstable tension region makes yarn transfer unstable. For example, when transferring thread from the bobbin to the waist spool using a guide, the thread will fall from the winding surface to the end of the bobbin, but the peripheral speed at the bobbin end is faster than the peripheral speed at the winding surface, which has a larger diameter. This slowness causes the yarn to become slack.

This tendency becomes more pronounced as the diameter of the wound yarn becomes larger. Conversely, when transferring the thread from the waist spool to the boppin using the guide, the thread may become slack or the tension may increase abnormally.

If the yarn is slack, not only will the yarn transfer to the bobbin become uncertain, but also the formation of the tail yarn to be wound around the end of the bobbin will become unstable. Furthermore, since the thread is not caught properly by the traverse guide, it is easy to mistraverse.
On the other hand, if the tension of the thread becomes high, thread breakage becomes more likely to occur during thread transfer. These phenomena become more pronounced when the yarn has less elasticity or when the winding speed increases. In addition, in the above-mentioned known technology, the thread transfer guide is made to cross the entire width of the range in which the traverse guide moves in order to capture the thread during traverse, so the stroke of the thread transfer guide becomes long and the device becomes large. There are some drawbacks.

Furthermore, Japanese Patent Publication No. 52-25454 discloses that in a yarn winding device, a yarn removal moving guide having an inclined surface inclined with respect to the yarn traverse direction is moved almost parallel to the yarn traverse direction, and the yarn is removed from the yarn package. A technique is shown in which a transfer tail is formed.

However, this device also requires the thread removal movement guide to traverse the entire width of the traverse range, resulting in a long stroke and a large device. The object of the present invention is to eliminate the above-mentioned deficiencies of the prior art and provide a yarn winding device that can reliably transfer yarn from the waist spool to the bobbin or from the bobbin to the waist spool in one operation. be.

In order to achieve the above object, the present invention consists of the following configuration.

That is, a traversing device for traversing the yarn, a traversing fulcrum guide for determining the traversing fulcrum of the yarn, a spindle for mounting a bobbin for winding the yarn, a waist spool provided on the side of the spindle, and the aforementioned The yarn transfer means includes a fixed guide, a yarn catching guide, and a movable guide arranged along the traverse direction of the traverse device,
The fixed guide has its fixed part outside the traverse plane area of the yarn formed by the traverse device, and the length of the guide part is from a position corresponding to the waist spool to a position spanning a part of the traverse plane area. The yarn catching guide has an inclined guide portion and is configured to reciprocate from a position corresponding to the waist spool to a position covering a part of the traverse plane area, and the movable guide has an inclined guide portion. This device is characterized by a yarn winding device that is linked to the movement of the guide.

Further, the present invention will be explained in detail with reference to embodiments shown in the drawings.

FIG. 1 is a perspective view showing an example of a device according to the present invention,
FIG. 2 is a front view showing the main parts of the apparatus shown in FIG. 1.

As shown in FIGS. 1 and 2, the apparatus according to the present invention consists of a winding section W and a thread transfer section T.

The winding section w includes a spindle consisting of a winding ladle 2 and a boppin shaft 3, a poppin 4 attached to the spindle, a bobbin drive roller 7, a cam box 9, a traverse fulcrum guide 11, and a waist spool 13 for winding the waist. and a waist spool drive disk 15 as the main parts. On the other hand, the thread transfer section T is a fixed guide 16
, a thread catching guide 17 and a movable guide 18 are its main parts. A pair of winding ladles 2 are swingably supported around a shaft 6, and a bobbin 4 is rotatably supported from both ends of the bobbin 4 via a bobbin shaft 3 having thread gripping claws, thereby forming a spindle.

2a is an opening/closing lever provided on one side of the cradle 2 for attaching and detaching the bobbin 4 to the cradle 2.

The bobbin 1 drive roller 7 and the waist spool drive disk 15 are fixed to a rotating shaft 8 that is actively driven by a driving source (not shown), and are actively rotated by the rotating shaft 8. Waist spool 1 Drive disk 1
It is preferable that the diameter of the bobbin drive roller 5 is slightly larger than the diameter of the bobbin drive roller 7. Bobbin 4 and waist spool 13
are pressed and driven by the bobbin 1 drive roller 7 and the waist spool drive disk 15, respectively. The cam box 9 aligns the traverse guide 10 with the axis of the bobbin 4 (
In the case of a cone-shaped bobbin, the bobbin is reciprocated almost parallel to the bobbin's generatrix.

The yarn 1 passes through the traverse fulcrum guide 11 to the traverse guide 1
The thread is wound around the bobbin 4 while being traversed at zero to form the winding thread 5. 3A and 3B are perspective views illustrating the shape of the traverse guide 10 used in the apparatus of the present invention.

The one shown in FIG. 3A has a cylindrical thread passage 10a with a tapered end, and an opening 10b at the top. The width H of the yarn passage 10a is the width h of the opening 10b.
The cross section of the traverse guide 10 cut along a plane perpendicular to the traveling direction of the yarn 1 is C-shaped. In the case shown in FIG. 3B, a groove for a thread passage 10a is formed in a plate-like member, and the width H of the bottom of the thread passage is made larger than the width h of the opening 10b.

These guides 10 are designed to be easily disengaged at a position where the yarn 1 reverses the moving direction of the traverse guide in relation to a yarn catching guide to be described later. Furthermore, sloped portions 10 are formed on both sides of the traverse guide 10.
e is provided so that the reciprocating traverse guide 10 can easily catch the yarn released from the yarn transfer section into the yarn path 10a. The apparatus of the present invention can also use a drum-type traverse guide (also called a rotary traverse drum) having a spiral groove on the surface of a cylinder. FIG. 4 is a perspective view showing an example of a waist spool suitable for the apparatus of the present invention, and FIG. 5 is a cross-sectional view of the waist spool shown in FIG. 4.

Waist spool 1 as shown in Figures 4 and 5.
3 is rotatably attached to the arm 12 via a bearing 30, and is pressed against the waist spool 1 drive disk 15 and driven.

As shown in FIG. 1, the arm 12 is oscillated by rotation of the shaft 14 to press the waist spool 13 and the waist spool drive disk 15 into contact with each other and to separate them. The waist spool 13 has a collar 13a with thread gripping claws,
It consists of a collar 13b without thread gripping claws, a thread winding section 13c, and an auxiliary thread winding section 13b. Further, the waist spool 13 is provided with a thread cutting slit 31 for removing thread waste. Furthermore, an auxiliary thread winding section 13d is provided at the tip of the arm 12.
A cap 12a is formed which covers a portion of the cap 12a, but a portion of the cap 12a is cut out to facilitate thread waste removal. Although FIGS. 4 and 5 show an embodiment in which the diameters of the thread winding section 13c and the auxiliary thread winding section 13d are approximately equal, the diameters of the two do not necessarily have to be equal. In short, it is sufficient to provide two thread winding portions on both sides with the collar 13a interposed therebetween. FIG. 6 is a schematic diagram showing the mutual relationship between the fixed guide 16, the yarn catching guide 17, and the movable guide 18, which are the main parts of the yarn transfer section T.

As shown in FIG. 6, the fixed guide 16 is fixed to the upper surface of the cam box.

The fixed position is located on the side of the traverse plane area P (see FIG. 1) formed by both ends of the movement area of the traverse guide 10 and the traverse fulcrum guide 11 so as not to come into contact with it. However, a part of the end of this fixed guide straddles the upper part of the above-mentioned traverse plane area P.The tip of the fixed guide 16 has an inclined part 16a, and this inclined part 16a
is set higher toward the fixed end. Further, the fixed guide 16 has a groove 1 formed by inclined wall surfaces 16b and 16c at a position where the tail thread 4a is formed at the end of the bobbin 4 and at a position facing the bobbin winding part 13c of the waist spool.
6d and 16e. These 16b-16
The entire length of e extends to positions facing the winding thread 5 of the bobbin 4 and the waist spool 13, respectively. Thread catching guide 1
7 is movable along a fixed guide 16, and its tip moves into the traverse plane.

A sloped part 17a is formed at the tip of the yarn catching guide 17, and when it extends into the traverse plane area, a part of the sloped part 17a is located at the lower part of the traverse plane area P,
Another part is located above the traverse plane area P. A hook portion 17b is formed at the upper part of the inclined portion 17a, and the hook portion 1
The bottom of 7b is set to be at a higher position than the opening 10b of the traverse guide 10. The hook portion 17b of the thread catching guide 17 is inserted into the groove 1 from a position that is further inside the traverse plane area P than the tip of the inclined portion 16a of the fixed guide 16.
It is now possible to move between positions up to 6e. Furthermore, the movable guide 18 has elongated holes 34a, corresponding to the fixed pins 33, 34 installed on the fixed guide 16.
34b, and is attached to the fixed guide by engaging the fixed pins 33, 34 with the elongated holes 33a, 34a, respectively.

A spring 32 is stretched between the hole 37 of the fixed guide 16 and the hole 38 of the movable guide 18, and the movable guide 18 is urged to always move to the left with respect to the fixed guide 16. . On the other hand, the thread catching guide 17 is provided with a pin 35, and in the process of moving the thread catching guide 17 to the right, the pin 35 engages with a protrusion 36 provided on the right end of the movable guide 18, causing the movable guide 18 to spring. It is designed to move to the right against the force of 32.

As shown in FIG. 6, the yarn catching guide 17 is at the position indicated by the solid line (
(on the right side), the tip of the movable guide is at the position indicated by the solid line in Fig. 6, but when the yarn catching guide 17 is at the position indicated by the dashed line on the left (left side), the tip of the movable guide 18 is at the position shown by the solid line in Fig. 6. It takes a position that protrudes from the inclined portion 16a of No. 16.
In this way, the movable guide 18 is configured to change its position in conjunction with the movement of the yarn catching guide 17. Next, the operating mechanism of the thread catching guide will be explained based on FIG.

The thread catching guide 17 is fixed to a collar 20 via an arm 19, and the collar 20 is rotatable with respect to a shaft 21, but stop bands 22a and 22b prevent it from moving in the longitudinal direction of the shaft 21. Supported through.

When performing a thread transfer operation between the bobbin 4 and the waist spool 13, the thread catching guide 17 moves along the surface of the cam box 9 together with the shaft 21 substantially parallel to the axis of the bobbin 4.
The shaft 21 is supported so as not to rotate, and the rack 25
, are reciprocated in the longitudinal direction of the shaft 21 by a motor 23 via a pinion 24.

Position control signals necessary for operations such as stopping and turning back the shaft 21 are obtained by connecting limit switches 26 to 29 fixed to the machine base to a dock 21a fixed to the shaft 21. The motor 23 is a variable speed motor that can set multiple speeds. Instead of this motor 23, a unidirectional constant-velocity rotating motor may be used, and the shaft 21 may be moved via a separate transmission mechanism, or a mechanism combining a hydraulic cylinder and a solenoid valve may be used. Next, the thread transfer operation will be explained.

7 and 8 are front views illustrating the operations performed by each part of the thread transfer section when transferring the thread from the bobbin 4 to the waist spool, and FIG. 9 is a plan view illustrating the state of movement of the thread. be.

As shown in FIGS. 1 and 2, when the thread 5 wound by the winding section w becomes full, the waist spool 13 first descends and contacts the waist spool drive disk 15 and begins to rotate.

Next, the thread catching guide 17, which was waiting at the right end, moves to the left until the hook part 17b crosses the tip of the inclined part 16a of the fixed guide and enters the inside of the traverse plane, as shown in FIG. Moving. The position of the thread catching guide 17 at this time is determined by a limit switch 29 shown in FIG. As the thread catching guide 17 moves, the pin 35 of the thread catching guide 17 and the protrusion 36 of the movable guide 18 are disengaged, so the movable guide 18 is moved to the left by the elastic force of the spring 32, and the movable guide 18 is moved leftward by the elastic force of the spring 32. The tip of the guide 18 takes a position partially protruding from the inclined portion 16a of the fixed guide 16, as shown by the dotted line in FIG. On the other hand, when the traverse guide 10 moves from left to right, it encounters a yarn catching guide that is moving to the left or has stopped, and then moves further to the right. It crosses over and enters the hook portion 17b whose bottom is higher than the opening 10b of the traverse guide 10 (see the thread path indicated by the two-dot chain line in FIG. 7). Next, as the traverse guide 10 changes direction and moves to the left, the yarn 1 is removed from the traverse guide 10 (7th
(See the solid line thread path in the diagram). Immediately after the yarn catching guide 17 catches the yarn 1 at the position shown in FIG. 7, it returns to the standby position on the right side shown by the dashed line.

FIG. 8 is a front view showing the thread path when the thread catching guide returns to the intermediate position.

As is clear from FIG. 8, in the process of the yarn catching guide 17 moving to the right, the yarn 1 passes through the traversing branch guide 11, the hook portion 17b of the yarn catching guide 17, and then passes through the recess 18a provided at the tip of the movable guide 18. is temporarily restricted to form a bunch winding 5a (see FIGS. 6 and 9) on the surface of the winding yarn 5.

The thread catching guide 17 moves further to the right from the position shown in FIG.
In the process of returning to the standby position indicated by the dashed line in the figure, the protrusion 36 of the movable guide 18 is caught by the pin 35 of the yarn catching guide 17, and the movable guide 18 is moved to the right together with the yarn catching guide 17. As the movable guide 18 moves to the right, the recess 18a provided at its tip retreats to the right of the inclined portion 16a of the fixed guide 16. As a result, the yarn 1 is released from the recess 18a, and as a result, the yarn 1 reaches the inclined portion 16a of the fixed guide 16.
Go up the slope, jump over the groove 16d, and move to the groove 16e. Then, the thread 1 is caught on the thread gripping claw of the collar 13a of the waist spool 13, and the thread winding part 1 of the waist spool 13
It is wound up in 3c. In FIG. 9, the thread 1 released from the recess 18a at the tip of the movable guide 18 becomes the thread path 1a as the bobbin 4 rotates in the direction of the arrow, and is then caught in the thread gripping claw of the collar 13a of the waist spool.

Next, this thread 1 is attached to bobbin 4 and waist spool 1.
As the thread 3 rotates, the thread reaches the base of the arm 12 along the outer periphery of the cap 12a and becomes the thread path of the arm 1b. When the waist spool 13 and the bobbin 4 further rotate, the thread 1 is also caught on the boppin chuck 3 and wound around both the auxiliary thread winding section 13d and the thread winding section 13c of the waist spool, and the thread 1 is wound around both the auxiliary thread winding section 13d and the thread winding section 13c as shown by the solid line.
It becomes a thread path. Since the yarn is regulated by the two fixed parts of the winding ladle 2 and the arm 12, it will eventually be cut between the bobbin chuck 3 and the collar 13a of the waist spool 13, and the yarn 1 on the side of the traverse fulcrum guide 11 will be cut. It comes to be wound around the waist spool thread winding section 13c. In this way, the thread transfer from the bobbin to the waist spool is completed. After the thread catching guide 17 returns to the standby position shown by the dashed line in FIG.
The yarn is reciprocated between the positions determined by and 27, and the yarn is traversed and wound around the winding portion 13c of the waist spool. When the thread transfer operation from the bobbin 4 to the waist spool 13 is completed in this way, the winding unit w is stopped and the fully wound thread 5 is
Remove the bobbin with the pin from the bobbin chuck 3 and replace it with a new empty pin.

The above describes the operation of transferring thread from a fully wound bobbin to the waist spool. Next, the operation of transferring thread from the waist spool to the empty bobbin will be explained.

Figures 10 to 12 are front views illustrating the operation of the yarn transfer section T when transferring the yarn from the waist spool to the empty bobbin, and Figure 13 is a plan view illustrating the state of yarn movement. .

After the change from a fully wound bobbin to an empty bobbin in the winding section w is completed, the winding section w is driven.

When the rotation of the bobbin reaches the normal speed, the thread catching guide 1
7 from the right standby position to the left. The thread 1 wound around the waist spool 13 is secured to the fixed guide 16 by the second inclined part 17c provided following the hook part 17b of the thread catching guide 17, as shown by the solid line thread path in FIG. along the wall surface 16c of the groove 16e. In this state, the yarn is still wound around the thread winding portion 13c of the waist spool. When the yarn catching guide 17 further moves to the left, the yarn 1 is momentarily released from the wall surface 16c of the fixed guide 16. The yarn 1 released from the wall surface 16c of the fixed guide 16 jumps over the yarn catching guide 17 and moves, and as shown in FIG.
along its circumference to reach its base. The two-dot chain line shown in FIG. 13 indicates the thread path 1d at this time. In this state, the thread 1 is also caught on the thread gripping claw of the boppin chuck 3 and the bobbin 4
Wrap around. The yarn 1 on the waist spool side passes through the base of the arm 12 and is wound around the auxiliary thread winding section 13d of the waist spool, forming a yarn path 1e shown by the solid line in FIG. In this way, the yarn on the waist spool side is eventually cut between the waist spool 13 and the bobbin chuck 3, completing the thread transfer operation from the waist spool 13 to the empty bobbin 4.

On the other hand, the yarn wound around the bobbin 4 on the side of the traverse fulcrum guide is caught in the groove 16d of the fixed guide 16, forming a yarn path 1e indicated by a chain double-dashed line in FIG. While the thread path is regulated here, the thread forms a tail thread 4a near the end of the bobbin 4 (see Figure 6).
. When the yarn catching guide 17 continues to move to the left, the yarn 1 is lifted along the wall surface 16b of the groove 16d by the inclined portion 17a of the yarn catching guide 17, as shown in FIG. 11, and is eventually released from the wall surface 16b. . The yarn 1 released from the wall surface 16b as described above moves from the traverse fulcrum guide 11 shown in FIG. 1 in a direction perpendicular to the axis of the bobbin 4. During the yarn movement process described above, the yarn 1 is captured by the traverse guide 10 and wound around the bobbin 4 while being normally traversed as a winding yarn. The yarn catching guide 17 moves to a position where the yarn is completely released from the wall surface 16b of the groove of the fixed guide 16, and stops in the state shown in FIG. 12. The stopping position of this thread catching guide is determined by a limit switch 28 shown in FIG. The yarn catching guide 17 that has stopped at the position shown in FIG. 12 returns to the right standby position again, stops the motor 23, and waits until the next operation. Waist spool 13 is also waist spool drive disk 1
5 and stop rotating.

In this state, use the thread cutting slit 31 as appropriate to remove the thread from the winding section 13.
'c The waste yarn wound around the auxiliary winding section 13d can be cut and removed. In the above embodiment, the fixed guide, movable guide, and thread catching guide of the thread transfer section were provided between the traverse guide and the traversing fulcrum guide, but these guides may also be provided between the traverse guide and the bobbin. .

Further, the position of the movable guide is not limited to between the fixed guide and the thread catching guide, but can also be provided on the bobbin side of the fixed guide. The driving of the bobbin is not limited to the surface drive method, but also a spindle drive method in which the winding speed is synchronized with the yarn speed of the supplied yarn. Further, the waist spool may also be driven by the spindle 1 drive method. The movable guide is not limited to being slidably attached to the fixed guide, but can also be provided independently of the fixed guide.

Further, it is not necessary to provide a recess at the tip of the movable guide, and the movable guide may be configured to temporarily lock the thread for punch winding in combination with a fixed guide. 1st
4 and 15 are side views illustrating other embodiments of the movable guide, respectively.

In the embodiment shown in FIG. 14, a sloped portion 18b having an inclination opposite to that of the sloped portion 16a of the fixed guide 16 is provided at the tip of the movable guide 18.

This movable guide 18 can be moved horizontally as in the previous embodiment, and as shown by the two-dot chain line, the movable guide 18
When the tip of the movable guide 18 slightly protrudes from the inclined part 16a of the fixed guide 16, the inclined part 16a of the fixed guide 16 and the movable guide 18
A depression 18a is formed by the inclined portion 18b. The recess 18a is designed to temporarily lock the yarn. The embodiment shown in FIG.
A recess 18a is provided in the middle of the inclined portion 16a.

On the other hand, the movable guide 18 is connected to the fixed guide 16 via the pin 42.
The end on the bobbin side is a free end with a slope, and the end on the waist spool side is attached to pin 4.
3 to the solenoid 39. The solenoid 39 is actuated via a limit switch 41 which is fixed at a position near the standby position of the thread catching guide 17 and engaging the thread catching guide. FIG. 16 is an electrical circuit diagram showing the operating logic of the movable guide shown in FIG. 15.

In FIG. 16, contact SG is actuated by an external signal and is closed during the process of transferring thread from the bobbin to the waist spool.

The contact LS is structured to close when the limit switch 41 is pressed. SL is a solenoid coil. 1st
In the circuit shown in FIG. 6, the solenoid 39 is not energized while the yarn is being wound around the bobbin, so the movable guide 18 is at the position indicated by the dotted line in FIG. 15 due to the repulsive force of the spring 40. After the thread catching guide 17 catches the thread with contact SG closed, it returns to the standby position and contacts LS of limit switch 41.
When closed, the solenoid 39 is energized and the movable guide 18
moves to the position indicated by the two-dot chain line. In the process of moving the movable guide 18 to the position indicated by the two-dot chain line, the yarn that has been locked in the recess 18a provided at the center of the inclined portion 16a of the fixed guide 16 is released from the recess 18a. Figure 17 is the first
0 to 12 Explain the behavior when the yarn catching guide takes a movement path different from the movement path shown in Figures 0 to 12 b? They are a front view and a movement route diagram.

The behavior will be explained with reference to FIG. In order to configure the thread catching guide 17 to take the movement path shown in FIG. 17, a guide plate 44 shown in FIG. 1 is provided, but the limit switch 28 is not provided. The guide plate 44 is connected to a drive source such as an air cylinder through a known means such as a link mechanism (not shown), and can be selected from two positions, upper and lower. When the guide plate 44 is in the upper position, the guide plate 44 comes into contact with the arm 19 moving to the left, and the arm 19 is lifted to the ground along the slope 44a of the guide plate 44 using the shaft 21 as a fulcrum. It will be done. Therefore, the yarn catching guide 17 is also lifted, and even if the yarn catching guide moves to the left, the yarn catching guide moves above the traverse plane area P, and the yarn being traversed by the traverse guide 10 is moved upward. It is designed to prevent the thread catching guide from coming into contact with the thread catching guide. Therefore, the guide plate 44 is driven so as to assume the upper position only during the thread transfer process from the waist spool to the bobbin. The thread transfer operation will be explained in more detail with reference to FIG.

When transferring the thread from the bobbin to the waist spool, the thread catching guide 17 moves from the standby position shown by the two-dot chain line on the right side to the first position.
It reciprocates horizontally to the position specified by the limit switch 29 in the figure. That is, the route 1→2→3-2-1 is taken. In this case, the guide plate 44 is of course in the lower position. Then, the thread reciprocating by the traverse guide is caught by the hook portion of the thread catching guide 17, and the thread catching guide 17 is stopped at the standby position. This operation is as described in FIGS. 7-9. When transferring thread from the waist spool to the bobbin, the horizontal movement distance of the thread catching guide 17 is the same as the process of transferring thread from the bobbin to the waist spool, but since the guide plate 44 takes the upper position, the thread catching guide 1
The arm 19 to which 7 is fixed moves upward along the surface of the guide plate 44 and moves to the left, taking a route of 1→2→4→5→4→2→1.

That is, at position 2 in FIG.
c, the thread is released, jumps over the thread catching guide 17, and reaches the groove 16d of the fixed guide 16. On the other hand, the yarn catching guide 17 moves to the left while being lifted along the inclined surface 44a of the guide plate 44, releases the yarn 1 from the wall surface 16b of the fixed guide 16 by the inclined part 17a of the yarn catching guide, and releases the yarn 1 from the wall surface 16b of the fixed guide 16. It is moved to the traverse plane area, moved to the position indicated by the two-dot chain line on the left, and returned to the standby position via the same route. FIG. 18 is a side view showing the structure of a winding section equipped with a winding ladle different from that shown in FIGS. 1 and 2, and FIG. FIG. 3 is a plan view showing the state of movement of the yarn during yarn transfer from the waist spool to the waist spool. The one shown in Fig. 18 is the winding ladle 2.
A guide 45 is fixed to the bobbin, and the guide 45 is attached close to the end of the bobbin so that the guide 45 and the first drive roller 7 do not come into contact with each other even when an empty bobbin is mounted on the cradle 2.

When the cradle 2 equipped with the guide 45 transfers the thread from the bobbin 4 on which the winding thread 5 is formed to the waist spool 13, the thread 1 can be moved along the lower surface of the guide 45 without being caught by the thread gripping claw of the boppin chuck 3. Run. That is, the first
As shown in Fig. 9, the yarn 1 released from the recess 18a of the movable guide 18 moves from the yarn path 1a shown by the two-dot chain line to the yarn path 1b shown by the two-dot chain line, and then becomes the yarn path 1f shown by the solid line. It is caught on the thread gripping claw of the collar 13a. During this time, the thread between the bobbin and the waist spool passes under the guide 45 without being caught by the thread gripping claw of the bobbin chuck 3, so that it does not wrap around the tip 2b of the cradle 2. and yarn 1
The thread winding section 13c, the auxiliary thread winding section 13d and a portion are wound near the end of the bobbin 4, and are eventually cut between the bobbin 4 and the waist spool to complete the thread transfer. On this occasion,
There is no thread wrapping between Bopinchatsk and Credor. On the other hand, when transferring the thread from the waist spool to the bobbin, as shown in FIG.
The thread 1 released from the thread 6c moves to the bobbin side through the gap 45a between the poppin chuck 3 and the guide 45 shown in FIG.
It is wound onto the bobbin 4 as explained in FIGS. 1 and 12.

FIG. 20 is a perspective view showing another embodiment of the device according to the present invention.

The difference from the device shown in Figure 1 is that the traverse plane is
It is bent through the traverse fulcrum guide 11a, and a regulation guide 46 is added to the thread transfer portion T.

The second traverse fulcrum guide 11a is a round bar with a smooth surface provided parallel to the reciprocating direction of the traverse guide 10, and the traverse fulcrum guide 11 is fixed upstream of the second traverse fulcrum guide 11a. There is.

The regulation guide 46 is an L planted on the top surface of the cam box 9.
This type of type is provided on the waist spool side of the traverse plane area P in close proximity to the traverse plane area P, and when transferring thread from the waist spool to the bobbin, the base of the cap 12a of the waist spool (see Figure 4) and the regulation A thread path connecting the thread joining point of the guide 46 is provided so as to be caught by a thread gripping claw of the boppin shaft 3. Moreover, its height is set so that when the yarn catching guide 17 moves across the traverse plane area P, it is at a higher position than the yarn path connecting the second traversing fulcrum guide 11a and the hook portion 17b of the yarn catching guide 17. There is. Therefore, the arm 19 to which the thread catching guide 17 is fixed does not come into contact with the regulation guide 46 when it moves (as shown in the figure). By adopting the above-mentioned aspect,
When transferring thread from the bobbin to the waist spool, when the thread catching guide 17 returns to the standby position, the thread 1 is transferred to the traversing fulcrum guide 11, the second traversing fulcrum guide 11a, the regulation guide 46, and the thread catching guide. The thread takes the same path as shown in FIG. 9, passing through the hook portion 17b and being wound onto the waist spool 13. Next, when the yarn is transferred from the waist spool to the bobbin, the provision of the regulation guide 46 causes the yarn to wind around the bobbin following the same yarn path as shown in FIG.

Without the regulation guide 46, the thread 1 released from the inclined portion 16c of the fixed guide would not be caught by the thread gripping claw of the boppin chuck 3, making it impossible to transfer the thread. In the apparatus shown in FIG. 1, the regulation guide 46 is used when the distance between the bobbin 4 and the traverse fulcrum guide 11 is large, or
It can be used effectively even when the interval between 3 is large. Furthermore, in the above embodiments, the bobbin and waist spool used flanges with thread gripping claws to grip the thread, but the device of the present invention is not limited to this, and can be used with known brushes and protrusions. Motsu cloth can also be used.

According to the device of the present invention, when transferring thread from the bobbin to the waist spool or from the waist spool to the bobbin, there is no possibility of occurrence of unstable tension regions where the thread tension becomes extremely high or low. do not have.

Therefore, it is possible to carry out the thread transfer operation reliably and smoothly. Changes in yarn tension when using the apparatus of the present invention will be explained below.

When transferring yarn from the bobbin to the waist spool, there are four main steps: 1. Yarn catching process, 2. Punch winding process on the surface of the yarn, 3. Winding process on the waist spool, and 4. Yarn cutting process. be.

In step 1, when the yarn catching guide 17 slightly enters the traverse plane P, the yarn catching guide comes into contact with the yarn guided by the traverse guide, and the yarn moves along the inclined portion 17aVC of the yarn catching guide 17. It rises and falls into the hook portion 17b.

At this time, the tension of the thread temporarily increases slightly. On the other hand, when the traverse guide 10 changes direction, the yarn immediately leaves the traverse guide 10, so no sudden change occurs in the yarn path, and therefore no extreme change in yarn tension occurs. In step 2, the yarn catching guide 17 moves from the state shown in FIG. 7 to the state shown in FIG. 8, but since the thread traverse speed component has already disappeared, there is no extreme change in the thread path length in this case either. Therefore, a sudden increase in yarn tension can be avoided.

In steps 3 and 4, in the process of reaching the yarn path 1a in FIG. 9, the tension of the yarn slightly decreases because the length of the yarn path becomes slightly shorter.

However, in the next moment, Jojo moved to the waist spool brim 13a.
The thread gripping claw of
Since the yarn is simultaneously wound around both of the threads d and taken off at a speed faster than the yarn feeding speed, the tension of the yarn immediately returns to normal and there is no extreme drop in tension. Subsequently, the thread is caught in the thread gripping claw of the poppin chuck 3 (in the case of FIG. 19, the thread is slightly wound around the bobbin 4), so that the thread is passed through the winding ladle 2 to the boppin chuck 3 and the auxiliary thread winding part 13 of the waist spool.
Since a new winding component is generated between the bobbin and the waist spool, the yarn continuous between the bobbin and the waist spool is finally cut between the two. In this process, the yarn itself moves in the direction where the length of the yarn path becomes shorter, so the tension of the yarn temporarily decreases, but when this tension decreases, a The tension of the thread that is caught in the thread gripping claw and then connected to the bobbin side is gradually increased, and the thread is automatically cut between the bobbin and the waist spool, so that there is no possibility of failure in thread transfer. Next, the change in tension when transferring yarn from the waist spool to the empty bobbin will be explained.

In the state shown in FIG. 10 in which the thread is wound on the thread winding part 13e of the waist spool with an appropriate tension, the fixed guide 1
When the yarn is instantly released from the wall surface 16c of the groove 16e of No. 6, the speed at which the yarn is taken up temporarily decreases while the yarn reaches the yarn path indicated by the two-dot chain line in FIG. Since the thread is caught in the thread gripping claw of the boppinch 3, no abnormal tension occurs.

Then, the yarn can be smoothly wound around the bobbin. At this time, the thread is temporarily held in the groove 16d of the fixed guide 16 and wound under stable tension to form a tail thread. The yarn released from the groove 16d of the fixed guide 16 by the yarn catching guide 17 leaves the fixed guide 16 and moves to the center of the bobbin in the winding section, where it is quickly caught by the traverse guide to ensure normal winding. Start. As described above, the device according to the present invention exhibits the following effects during the thread transfer operation.

(1) Since there is no slack in the thread or generation of abnormally high tension during the thread transfer operation, reliable and stable thread transfer is possible.

Further, the yarn transfer operation can be carried out without much influence from conditions such as the outer diameter of the wound yarn and the speed of elastic winding of the yarn.

Further, in the device according to the present invention, the yarn transfer can be completed in one operation by only moving the yarn catching guide.

The moving speed of the yarn catching guide does not need to be changed even if the winding speed of the winding section changes or the diameter of the wound yarn changes. In addition, compared to conventional devices, the moving distance of the thread catching guide is shorter, making the device smaller and easier to operate. Therefore, one drive device can drive the yarn catching guides provided in a large number of winding sections, which is extremely advantageous for doffing all at once. (2) When the thread is transferred from the waist spool to the bobbin, a predetermined amount of tail thread is formed at the poppin end with stable tension.

(3) The product enters the traverse immediately after winding the tail thread, and the unwinding property of the innermost layer of the product is extremely good.

(4) There is almost no undesirable contact with the yarn wound on the bobbin as a product yarn by guides or the like.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an example of the device of the present invention, and FIG.
The figure is a front view of the apparatus shown in FIG. 1. FIGS. 3A and 3B are perspective views illustrating the shape of a traverse guide used in the apparatus of the present invention. FIG. 4 is a perspective view showing an example of a waist spool used in the device of the present invention;
FIG. 5 is a cross-sectional view of the waist spool shown in FIG. 4. FIG. 6 is a schematic diagram showing the mutual relationship of the main parts of the thread transfer section. FIGS. 7 and 8 are front views illustrating the operation of each member of the thread transfer section when transferring the thread from the bobbin to the waist spool, and FIG. 9 is a plan view illustrating the state of movement of the thread. . Figures 10 to 13 are front views for explaining the operation of each part of the yarn transfer section when transferring yarn from the waist spool to the empty bobbin, and Figure 13 is a front view for explaining the movement state of the yarn. FIG. Figure 14 and 1
FIG. 5 is a side view illustrating another aspect of the movable guide.
FIG. 16 is an electrical circuit diagram showing the operating logic of the movable guide shown in FIG. 15. FIG. 17 is a front view and a movement path diagram for explaining the behavior when the thread catching guide takes another movement path. 18 is a side view of a winding section equipped with a cradle different from that in FIG. 1, and FIG. 19 is a plan view showing the state of movement of the yarn in the winding section of FIG. 18.
FIG. 20 is a perspective view showing another embodiment of the present invention. W... Winding section, T... Thread transfer section,
P... Traverse plane, 1... Thread,
4... Bobbin, 5... Winding thread, 10...
... Traverse guide, 11 ... Traverse fulcrum guide, 13 ... Waist spool, 16 ...
...Fixed guide, 16a, 16b, 16c...
・・Slope part, 16d, 16e・・・Groove, 17・・
... Thread catching guide, 17a, 17c... Inclined portion, 17b... Hook portion, 18... Movable guide, 18a... Bevel.

Claims (1)

[Claims] 1. A traversing device for traversing the yarn, a traverse fulcrum guide that determines the traverse fulcrum of the yarn, a spindle on which a bobbin for winding the yarn is attached, a waist spool provided on the side of the spindle, The traverse device includes a yarn transfer means consisting of a fixed guide, a yarn catching guide, and a movable guide arranged along the traverse direction of the traverse device, and the fixed guide has its fixed portion outside the traverse plane area of the yarn formed by the traverse device. , and the length of the guide portion is from a position corresponding to the waist spool to a position covering a part of the traverse plane area,
The yarn catching guide has an inclined guide portion, and is configured to reciprocate from a position corresponding to the waist spool to a position covering a part of the traverse plane area, and the movable guide has an inclined guide portion. A yarn winding device characterized in that it is linked with movement.