JP2808398B2 - Yarn winding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of winding a yarn on a yarn winding tube of any material,
It relates yarn winder that can be performed tail wound.

[0002]

2. Description of the Related Art In general, a synthetic fiber yarn spun from a spinning machine is wound by a turret type winder as described in, for example, JP-A-62-280172.

The above-mentioned turret type winder has a plurality of spindles rotatably mounted thereon, a turret member rotatably mounted on a machine frame, a traverse mechanism installed above the spindle, and a spindle. A contact pressure roller for applying a predetermined surface pressure by contacting a tube tightened to a tube or a yarn wound on the tube, and a traverse mechanism;
Alternatively, an upper thread switching mechanism provided above the contact pressure roller, and a thread switching mechanism provided between the fully-loaded tube and the empty tube to regulate the yarn path when switching the yarn from the fully-loaded tube to the empty tube. Lower thread switching mechanism,
A yarn hooking mechanism provided below the lower yarn switching mechanism for regulating the yarn path when winding the yarn around the empty tube at the start of winding, and an empty tube and a lower yarn for winding the yarn around the empty tube. It is constituted by a thread switching mechanism or a yarn winding mechanism provided to move between the empty tube and the yarn hooking mechanism.

The above-described upper yarn switching mechanism includes a yarn removal guide that moves in a horizontal direction orthogonal to the traverse direction of the traverse guide to push out the yarn from the traverse guide, and a yarn removal guide that moves the yarn removed from the traverse guide into a tube. It is constituted by a yarn shifting guide for moving the yarn to the end and guiding the yarn to the bunch winding position and the tail winding position, and a yarn support guide for supporting the yarn while forming the bunch winding and the tail winding. The lower yarn switching mechanism moves between the fully wound tube and the empty tube during the yarn switching operation, and causes the second yarn path regulation to move the yarn toward the bunch winding position in the yarn winding layer of the fully wound tube. A guide and an arm for rotating the second yarn path regulating guide between a standby position and an operating position.

The yarn hooking mechanism guides the yarn sucked by a suction gun (not shown) guided by a yarn pulling guide so as to travel on a vertical line of a yarn catching groove formed in an empty tube. A first thread path regulating guide for guiding the first thread path regulating guide; and an arm for rotating the first thread path regulating guide between a standby position and an operating position. The yarn winding mechanism includes a yarn moving guide and a first yarn. The yarn running between the road regulating guide or between the yarn pulling guide and the second yarn path regulating guide is brought into contact with the peripheral surface of the empty tube, and the yarn is moved in the axial longitudinal direction of the empty tube. The winding guide is configured to be engaged with the thread catching groove, and the arm is configured to rotate the winding guide between a standby position and an operating position.

The above-described second yarn path regulating guide is not provided, and the fully-wound tube or the empty tube is tightened so that the spindles can be moved in the longitudinal direction of the axis, respectively. The yarn path regulation guide switches the yarn from the full tube to the empty tube so that the yarn travels toward the yarn catching groove of the empty tube and the bunch winding position in the yarn winding layer portion of the full tube. There is a way to do it. Such a turret type winder is described in, for example, Japanese Patent Publication No. 57-36233.

[0007]

When the yarn is wound by the former turret type winder as described above, FIG.
3. An introduction portion 72 having a V-shaped cross section at the end as shown in FIG.
and a thread catching groove 7 comprising a catching portion 72b having a narrow groove-like cross section.
3 is used.

The above-described catching section 72b is provided with a paper tube 7 as shown in FIG. 35 to prevent the captured yarn from slipping out.
1 is crushed to bring the narrow groove-shaped capturing portion 72b into close contact.

When the winding of the yarn is started using such a paper tube 71, a plurality of yarns spun from a spinning machine (not shown) are drawn by a suction gun (not shown). When the suction is performed and the yarn removing guide of the upper yarn switching mechanism is projected, each yarn is passed through the first yarn path regulating guide of the yarn hooking mechanism, and the first yarn path regulating guide is moved to the yarn winding operation position. Move to Then, the yarn pulling guide of the upper yarn switching mechanism moves toward the end of the empty tube, and each yarn is conveyed by the yarn pulling guide on the vertical line of the bunch winding position in each empty tube.

Next, the winding guide of the yarn winding mechanism moves toward the running position of the yarn, and the running yarn is guided by the yarn moving guide and the first yarn path regulating guide of the yarn hooking mechanism. When the thread comes into contact with the empty tube, the winding guide is moved in the longitudinal direction of the axis of the empty tube, whereby each thread bites into the thread catching groove of each empty tube and is captured. Then, the running direction of the yarn instantaneously changes to the opposite direction, and the force of suctioning the yarn by the suction gun (not shown) and the force of winding by the empty tube act in the direction of pulling the yarn, and the yarn is pulled. The yarn cut from the contact pressure roller is wound around the yarn catching groove of the empty tube.
Since the yarn is guided by the yarn guide so as to travel toward the bunch winding position of the empty tube, the yarn moves from the inside of the yarn catching groove to the peripheral surface of the empty tube and the bunch winding is moved to a predetermined position. It is formed.

Next, when a predetermined amount of yarn is wound around the paper tube 71 and the yarn is switched from a fully-wound tube to an empty tube, the turret member is rotated and the full-wound at the winding operation position is reached. The tube is moved to the doffing operation position, and the empty tube at the doffing operation position is moved to the winding operation position.

Next, when the yarn is removed from the traverse guide by the yarn removal guide of the upper yarn switching mechanism and conveyed to the end of the tube by the yarn pulling guide, the lower yarn switching between the full tube and the empty tube is performed. The second yarn path regulating guide of the mechanism is moved between the fully wound tube and the empty tube, and is guided so that the yarn wound on the fully wound tube is wound at the bunch winding position in the wound layer portion. .

Then, the winding guide of the yarn winding mechanism moves between the empty tube and the second yarn path regulating guide of the lower yarn switching mechanism, and the yarn pulling guide and the lower yarn of the upper yarn switching mechanism. When the running yarn with the yarn path regulated by the second yarn path regulation guide of the switching mechanism abuts on the peripheral surface of the empty tube, the winding guide moves in the axial longitudinal direction of the empty tube. Then, the yarn engages with the yarn catching groove and is captured. When the yarn is captured, both the full tube and the empty tube are rotating in the yarn winding direction, so that the yarn is cut between the full tube and the empty tube, and the yarn is fully wound. Switch from tube to empty tube.

Since the yarn is guided by the yarn pulling guide so as to travel toward the bunch winding position of the empty tube, the yarn moves from within the yarn catching groove to the peripheral surface of the empty tube and is brought into a predetermined position. A winding is formed.

The above-described yarn shifting guide of the upper yarn switching mechanism and the first yarn path regulating guide of the yarn hooking mechanism, or the yarn shifting guide of the upper yarn switching mechanism and the second yarn guide of the lower yarn switching mechanism.
Since the yarn path formed by the yarn path regulating guide intersects with the introduction portion 72a of the yarn capturing groove 73 formed in the empty tube, the parable yarn is formed by the yarn capturing groove 73. In many cases, the yarn does not bite into the catching portion 72b even when traveling in a state of contact with the introduction portion 72a. Further, even if the winding guide is moved in the longitudinal direction of the axial center of the empty tube 71 to perform the search operation with respect to the yarn capturing groove, the yarn is not moved in a state parallel to the yarn capturing groove 73. As described above, the yarn does not bite into the catching portion 72b without fail.
There is a problem that the yarn switching success rate is deteriorated.

The cross-sectional shape of the thread catching groove 73 of the paper tube 71 is composed of a V-shaped portion of the introduction portion 72a and a portion 72b where the thread catching groove is in close contact.

In order to remove the yarn trapped and wound by the catching portion 72b, the thread is caught by a projection or the like formed by crushing the narrow groove of the catching portion 72b and becomes fluffy. A part of the fluffy thread remains in the capturing portion 72b. For this reason, there is a problem that the bunch-wound yarn and the fluffy yarn caught on the projection in the catching portion 72b must be removed.

The paper tube 7 in which the yarn catching groove 73 is formed.
1 is that once the yarn is wound, the yarn catching groove 73 is deformed, or the outer peripheral portion is deformed due to tight tightening of the yarn.

In such a paper tube 71, the thread cut into the thread catching groove 73 cannot be completely removed, and
If such a paper tube is to be reused, the yarn switching operation may fail because the yarn is not caught in the yarn catching groove 73, and the winding speed may be abnormal due to deformation of the outer peripheral portion, and the yarn breakage may occur. Therefore, there is a problem that the paper tube cannot be reused.

Therefore, using a tube in which the thread catching groove is not formed, a joining portion where the end surfaces of the tubes clamped to the spindle abut each other, or a joining where the end surface of the tube abuts the side of the positioning step of the spindle. When the yarn is switched so that the portion is replaced with a yarn catching groove and a bunch is formed at a position distant from the joining portion, the yarn shifting guide and the lower yarn of the upper yarn switching mechanism are provided. Since the yarn path formed by the second yarn path regulating guide of the switching mechanism is not in a state where the crossing angle of the yarn with respect to the joining portion is large and parallel, the yarn is less likely to bite into the joining portion and the yarn switching is successful. There is a problem that the rate becomes worse.

Therefore, when the yarn is switched so that the bunch winding position is close to the joint, the crossing angle of the yarn with respect to the joint is small and parallel, so that the yarn bites into the joint. Although it becomes easier and the success rate of thread switching is improved, the bunch winding is formed at the joint or at the position close to the tube end face, and the bunch winding falls off during doffing operation or during package handling in the subsequent process. There is a problem that the tail winding disappears.

On the other hand, in order to enable the tube to be reused, it has been proposed to use a tube having a joining step formed at the end of the tube as described in Japanese Utility Model Publication No. 2-3477. ing.

When the yarn is wound up using such a tube, a bunch winding is formed at the joint of the tubes.
When each full tube is doffed one by one,
There is a problem that the bunch-wound yarn is unwound and the unwound yarn is entangled with another fully-wound tube when the full-wound tube is conveyed or during the bunch winding process.

Next, when the yarn is switched by the latter turret type yarn winding machine, if the moving speed of the spindle is too high, the yarn is not sufficiently captured at the joint portion of the tube. If the joining portion has passed, the catching of the yarn has failed, and the success rate of the yarn switching has deteriorated. If the moving speed of the spindle is too slow, on the other hand, after the yarn has been caught by the joining portion, the bunch It is said that the thread wound spirally on the tube during the time it reaches the winding position, and the thread wound spirally unravels when doffing the package or handling the fully loaded tube in the subsequent process There's a problem.

As shown in FIG. 36, the yarn path when the yarn 80 is captured by the tube 70 in the longitudinal direction of the axis from the end face of the tube 70 in each yarn switching operation described above is the position (Q '). (Θ ′) from the contact point (P) position between the contact pressure roller 7 and the tube 70 where the winding is started from
0 ° to 90 °. Therefore, the winding tension of the yarn 80 is reduced until the winding of the yarn 80 is started until the winding is started, and the yarn 80 is placed on a take-up roller or the like installed upstream of the winding machine. There is a problem that the success rate of thread switching becomes poor due to winding.

Therefore, in order to prevent a decrease in the tension at the time of yarn switching, it has been practiced to increase the winding tension by increasing the rotation speed of the full-wound tube at a speed higher than the set speed at the time of yarn switching. Since the quality of the yarn wound under such a high tension is deteriorated, there is a problem that the yarn in the outermost layer must be removed in the subsequent process.

The above problem is caused not only by the turret type winder, but also by a single spindle rotatably mounted on the machine frame. When the spindle becomes full, the rotation of the spindle is stopped and the full tube and the empty tube are stopped. A similar problem occurs in a yarn winding machine having a configuration in which is replaced.

[0028] The present invention uses a tube for preparative yarn catching grooves have such has been formed yarn <br/> winding catching the yarn, the bunch winding,
The tail winding can be performed, and the length of the thread protruding from the bunch winding portion is short so that it does not hang down during doffing operation and is not entangled with other full winding tubes, and the work of removing the bunch winding can be easily performed. can be obtained package, it is an object to further provide Ruitojo winder it is possible to shorten the reduction time of the winding tension during the yarn switching.

[0029]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a yarn winding machine according to the present invention comprises:
Bunch winding without the yarn traveling toward the yarn catching section
Upper thread guide to guide you to travel to a position
The guide and the thread support guide under the spindle.
On the flow side, the end of an empty tube where the thread is fastened to the spindle
The end face of the joint or tube where the surfaces abut
The side of the spindle positioning tube for positioning the tube
Run towards the yarn catching section formed by the abutting joints
For threading for lower thread path regulation to guide you to run
A guide or a thread search guide is provided,
Running guided by the guide and the thread support guide
For winding the thread for engaging the existing thread with the thread catching section.
The guide was tightened to the contact pressure roller and spindle.
Located in the concave space formed by the empty tube
The configuration is provided as described above.

[0030]

[0031]

According to the above-mentioned winding method, the yarn is formed by the joint where the end faces of the tube contact each other, and the joint where the end face of the tube and the side surface of the step for positioning the tube provided on the spindle contact each other. As soon as the yarn is engaged with the yarn catching portion, the yarn moves from the yarn catching portion to the bunch winding forming position of each tube, and a bunch winding is formed.

[0032]

FIG. 1 is a schematic front view showing an embodiment of a turret type yarn winding machine of the present invention, and FIG. 2 is a schematic side view. A turret member 2 movably mounted, spindles 3 and 4 for tube tightening rotatably mounted on the turret member 2, and a frame 5 vertically rising and falling above the spindles 3 and 4. A traverse mechanism 6 mounted thereon, a contact pressure roller 7 rotatably mounted on the frame 5, an upper thread switching mechanism 8 installed on the frame 5 so as to be located above the traverse mechanism 6, A lower yarn switching mechanism 9 attached to the machine frame 1 so as to move between the full tube 51 and the empty tube 50, and a yarn path is regulated to wind the yarn around the empty tube at the start of winding. To the machine frame 1 below the lower thread switching mechanism 9. And a thread winding mechanism 11 attached to the frame 5 so as to move to a concave portion (A) formed by the contact pressure roller 7 and the empty tube 70 at the winding position. .

The turret member 2 described above includes a bearing 12
The spindle 4 which is rotatably mounted on the machine frame 1 and is tightened to the doffing operation position when the tube tightened to the spindle 3 at the winding operation position becomes full, and the empty tube at the doffing operation position is tightened to the spindle 4 Is moved by a driving device (not shown) in the direction (a) in order to move the
° is rotated.

The details of the spindles 3 and 4 are as shown in FIG. 3, and a shaft 13 rotatably mounted on the turret member 2 by a bearing 14 and a compressed air formed at the tip of the shaft 13 It comprises a piston 15 movably attached to the chamber 13b, a spring 16 for pressing the piston 15 toward the support side, a tightening ring 17, and cylinders 18 and 19 fitted on the outer periphery of the shaft 13. The output shaft of an electric motor (not shown) is connected to the end of the shaft 13.

The above-mentioned shaft body 13 has a hole 1 for supplying compressed air at the shaft center.
A compressed air supply pipe (not shown) having an electromagnetic valve is connected thereto. A step 13c for contacting the tube and a step 13d for contacting the tightening ring are formed at the outer peripheral support side end of the shaft 13. The shaft 13 does not have a step 13d for contact with the tightening ring, and has a groove 39a at the end of the shaft 13 to which an extruding piece 42 for a tube pushing operation engages as shown in FIG. 39 may be inserted.

When pressurized air is supplied to the hole 13a of the shaft body 13, a pressing force acts on the piston 15 to move in the (b) direction, and the pressing force against each tightening ring 17 is eliminated. The ring 17 becomes the original shape and the outer diameter becomes smaller than the inner diameter of the empty tube 50. In this state, the tube 50 is fastened to the tightening ring 17 and the cylindrical body 18,
When the supply of compressed air to the hole 13a of the shaft 13 is stopped, the piston 15 is moved by the spring 16 in the direction (c), so that the cylinder 18
When the tightening ring 17 is pressed in the order of the tightening ring 17, the cylindrical body 19, and the tightening ring 17, and the tightening ring 17 is compressed in the width direction, it is diametrically extended and presses the inner peripheral surface of the tube 70 to tighten.

The details of the above-described upper thread switching mechanism 8 are as shown in FIGS. 4 and 5. The upper thread switching mechanism 8 is rotatably mounted on the frame 5 so as to be located above the traverse mechanism 6, The yarn removing guide 20 moves in a direction perpendicular to the running direction and the traversing direction, and is installed on the frame 5 so as to face the yarn removing guide 20 with the running yarn interposed therebetween. A yarn pulling guide 22 that moves in the longitudinal direction of the center;
2 comprises a yarn support guide 24 attached to the frame 5 so as to be positioned below the yarn guide 22 so as to support the yarn when the empty tube 70 is moved to the bunch winding position and the tail winding forming position. Have been. The yarn support guide 24 is formed in an L shape having a yarn support portion 24a and a guide portion 24b for guiding the yarn to the bunch winding position.

When the tube at the winding operation position is fully wound, the cylinder 21 controls the yarn removing guide 20.
Protrudes from the traverse guide 6a of the traverse mechanism 6, and the yarn is extruded. Subsequently, the yarn pulling guide 22 is moved toward the end of the full tube 71 by the cylinder 23, and the yarn removed from the traverse guide 6 a is conveyed to the end of the empty tube 70, and the yarn is supported by the yarn support guide 24. 80 is guided to run toward the yarn catching section (B).

The above-described lower thread switching mechanism 9 is as shown in FIGS. 6 and 7, and includes an arm 25 rotatably mounted on the machine frame 1 and a rotatable arm at the end of the arm 25. The mounted partition plate 26, a cylinder 27 for rotating the arm 25, a cylinder 28 for rotating the partition plate 26, and an empty tube 70 when the partition plate 26 is moved to the thread switching operation position. A thread searching guide 29 movably attached in the longitudinal direction of the axis of the tube so as to be located on the upper end of the partition plate 26 so as to be positioned on the side of the partition plate 26, and the partition plate is positioned on the full tube 71 side of the partition plate 26 in this state A guide 30 for bunch winding is attached to the lower side of the front end of 26, and the guide 29 for thread search is moved in the longitudinal direction of the center of the empty tube 70 by the cylinder 31. .

At the time of the yarn switching operation, first, the arm 25 is moved by the cylinder 27, and then the partition plate 26 is moved by the cylinder 28 between the empty tube 70 at the winding operation position and the full tube 71 at the doffing operation position. The bunch winding guide 30 guides the yarn 80 so as to travel toward the bunch winding position in the winding layer portion of the full-wound tube 71, and the yarn search guide 29 extends in the longitudinal direction of the axial center of the empty tube 70. It moves and guides the running yarn to run on a vertical line of the yarn catching portion (B).

The above-described yarn hooking mechanism 10 is pivotally mounted on the machine frame 1 so as to be located below the lower thread switching mechanism 9, and is supported so as to move in the longitudinal direction of the axial center.
An arm 34 having a threading guide 33 at an end thereof and attached to the supporting rod 32; and a cylinder for rotating the supporting rod 32 to move the threading guide 33 between the threading operation position and the standby position. (Not shown).

When the yarn 80 is passed through the yarn hooking guide 33 at the start of the yarn winding, the cylinder (not shown) rotates the yarn hooking guide 33 together with the support rod 32 to the yarn hooking operation position. The yarn 80 is guided to travel on the yarn catching portion (B).

As shown in FIG. 4, the above-described yarn winding mechanism 11 is attached to an arm 36 rotatably attached to the frame 5 and to an end of the arm 36 so as to be located below the traverse mechanism 6. It comprises a thread winding guide 37 and a cylinder 38 for rotating the arm 36. The yarn winding guide 37 is provided with a guide portion (not shown) such as a step portion or a concave portion for guiding the yarn to the yarn catching portion (B) as shown in FIGS. It is preferable that the thread contact portion of the guide portion (not shown) is formed by a guide member such as ceramic or alumina porcelain.

When the yarn 80 travels while the yarn path is regulated by the yarn pulling guide 22, the yarn supporting guide 24, and the bunch winding forming guide 30, the arm 36 is rotated by the cylinder 38 and the yarn winding guide 37 is rotated. Protrudes toward the concave portion (A) formed by the contact pressure roller 7 and the empty tube 70 at the winding position, and the yarn 80 is guided so as to engage with the yarn catching portion (B).

A compressed air supply pipe (not shown) having an electromagnetic valve is connected to each of the above-mentioned cylinders, and the electromagnetic valve is operated based on a signal from the control device to switch the compressed air supply line to switch each cylinder. The piston rod is made to come and go.

The yarn hooking operation of the turret type yarn winding machine at the start of winding will be described with reference to FIGS.

When starting the winding of the yarn in the above-described yarn winding machine, a spinning machine (not shown) is used as shown in FIG.
When the yarn removal guide 20 of the upper yarn switching mechanism 8 is projected, the yarn 80 is passed through the yarn hooking guide 33 of the yarn hooking mechanism 10. The yarn hooking guide 33 is moved to the yarn winding operation position.

Next, as shown in FIG. 14, the yarn guide 22 of the upper yarn switching mechanism 8 moves toward the end of the empty tube 70, and the yarn 80 is moved by the yarn guide 22 to the end of the empty tube 70. Is transported on a substantially vertical line at the bunch winding position.

Then, as shown in FIG. 15, the thread winding guide 37 of the thread winding mechanism 11 is formed by the concave portion (A) formed by the contact pressure roller 7 and the empty tube 70 at the winding position.
, And a yarn catching portion formed by a joining portion where the thread 80 abuts against the ends of the empty tube 70 and a joining portion where the end of the empty tube 70 abuts the end 12c of the shaft 12. B) You are guided to run on. At this time, when the yarn 80 is traveling on the position of the yarn catching portion (B), the yarn 80 is immediately caught and caught in the yarn catching portion (B), and the yarn 80 is caught by the yarn catching portion (B). When the vehicle is traveling at a position deviating from the position, the yarn hook 80 is moved in the direction (b), whereby the yarn 80 bites into the capturing portion (B) and is captured.

When the yarn 80 bites into the yarn catching portion (B) and is captured by the above-described operation, the yarn 80 is wound from the position (Q) where the yarn 80 is captured by the tube 70 as shown in FIG. Is started, the angle (θ) to the contact point (P) position of the contact roller 7 and the tube 70 becomes as small as 30 ° to 50 °. For this reason, the winding tension reduction time until the rotation of the tube 70 and the start of the winding of the yarn 80 is reduced to about half or less as compared with the conventional case.

The empty tube 70 and the full tube 7
Since both 1 are rotating in the yarn winding direction, the yarn 80 is pulled and cut between the empty tube 70 and the full tube 71. Then, as shown in FIG. 16, the yarn 80 captured by the yarn capturing portion (B) is immediately removed from the yarn guiding recess 37 a of the yarn winding guide 37 as soon as the tube 70 rotates a predetermined amount (30 ° to 50 °). The yarn is separated and attempts to move toward the bunch winding forming yarn path regulated by the guide portion 24b of the yarn support guide 24.

At this time, as shown in FIG. 20, the yarn catching section (B) moves the circular arc (R-) on the side where the yarn moves to the bunch winding forming section.
If the radius dimension of 1) is small and the arc (R-2) on the opposite side is large, the opening width of the yarn catching portion (B) can be widened and the yarn catching portion (B) The thread 80 is surely caught and caught, and the thread 80 detached from the thread guide step of the thread winding guide 37 is the empty tube 7.
In order to reliably contact the arc (R-1) having a small radius dimension formed at the end of the zero, the yarn quickly climbs up from the yarn catching portion (B) onto the peripheral surface of the empty tube 70 and is bunch wound. Move to forming position. For this reason, the yarn length from the yarn catching position in the yarn catching section (B) to the bunch winding start position is shortened.

When a predetermined amount of bunch winding (C) is formed, the yarn pulling guide 22 returns to the standby position at a predetermined speed as shown in FIG. It is formed. At this time, the thread 80 moves while sliding on the support portion 24a of the thread support guide 24, forms a tail winding (D), and separates from the thread support guide 24.

Then, the yarn 80 moves to the traverse swing fulcrum side and is caught by the traverse guide 6a of the traverse mechanism 6 as shown in FIG. Taken.

Next, the operation of switching the yarn from the fully loaded tube to the empty tube will be described with reference to FIGS.

When a predetermined amount of the yarn 80 is wound around the tube and becomes full, the turret member 2 is rotated, and the fully wound tube 71 at the winding operation position is moved to the doffing operation position. The empty tube 70 at the lifting operation position is moved to the winding operation position.

Then, as shown in FIG. 21, the arm 25 and the partition plate 26 of the lower thread switching mechanism 9 are rotated, and the partition plate 26 moves between the empty tube 70 and the full tube 71. Simultaneously with this operation, the yarn removing guide 20 of the upper yarn switching mechanism 8 is moved in a direction orthogonal to the traveling direction of the yarn, and the yarn 80 is moved from the traverse guide 6a of the traverse mechanism 6 to the yarn 80.
Is extruded, the yarn 80 moves toward the traverse center.

Next, as shown in FIG. 22, the yarn pulling guide 22 moves in the direction (C) from the standby position, catches the yarn 80 on the way, and conveys the yarn 80 to the bunch winding forming position. . Simultaneously with this operation, the yarn searching guide 29 is moved in the direction (c).

Then, the yarn search guide 29 moves along the same vertical line as the yarn winding guide 37 of the yarn winding mechanism 11.
0 is moved to the position where it travels. At this time, the yarn traveling toward the full-wound tube 71 is a bunch winding guide 3
The yarn path is regulated by 0, and the yarn is wound at the bunch winding (E) position of the yarn winding layer 71a.

Then, as shown in FIG. 23, the yarn winding guide 37 of the yarn winding guide mechanism 11 projects toward the concave portion (A) formed by the contact pressure roller 7 and the empty tube 70 at the winding position, and the yarn is wound. The strip 80 is engaged with a joint portion where the ends of the empty tube 70 abut against each other and a yarn catching portion (B) formed by a joint portion where the end of the empty tube 70 abuts the end portion 12c of the shaft 12. You will be guided as follows. At this time, when the yarn 80 is traveling at the same position as the yarn catching portion (B), the yarn 80 is immediately caught by the yarn catching portion (B), and the yarn 80 is caught by the yarn catching portion (B). If the vehicle is traveling at a position deviated from the position (1), the yarn search guide 29 is moved in the direction (C), whereby the yarn 80 bites into the yarn catching portion (B) and is captured.

When the yarn 80 bites into the yarn catching section (B) and is caught by the above-described operation, both the empty tube 70 and the full tube 71 rotate in the yarn winding direction as shown in FIG. When the yarn 80 is pulled and cut between the empty tube 70 and the full tube 71, FIG.
As shown in FIG. 4, the yarn 80 captured by the joint (B) is separated from the yarn winding guide 37 as soon as the tube 70 rotates a predetermined amount (30 ° to 50 °), and the yarn 80 is Is guided by the guide portion 24b, and moves toward the bunch winding forming position.

When a predetermined amount of bunch winding (C) is formed, the yarn pulling guide 22 returns to the standby position at a predetermined speed as shown in FIG. 25, and a tail winding is formed. . At this time, the yarn 80 is
4 while sliding on the support portion 24a, forming a tail winding, and then separating from the thread support guide 24.

Then, the yarn is moved to the traverse swing fulcrum side, so that the yarn is caught by the traverse guide 6a of the traverse mechanism 6 as shown in FIG.
The yarn 80 is wound on the zero.

A cut 70a as shown in FIG. 11 or a cut 70b as shown in FIG. 12 is formed in the end face of the empty tube 70 on the side where the thread moves to the bunch winding forming section.
Is formed, the yarn can be more reliably captured, and the yarn comes into contact with the notch 70a formed on the end face of the empty tube 70, so that the yarn is emptied from the yarn catching portion (B). It is possible to smoothly climb on the peripheral surface of the tube 70.

Next, the structure of a second turret type winder of the present invention will be described with reference to FIGS. 27 and 28.

The second yarn winding machine includes a turret member 2 rotatably mounted on a machine frame 1 and a turret member 2.
Tube tightening spindles 42 and 43 mounted on
And a traverse mechanism 6 attached to the frame 5 vertically moving above and below the spindles 42 and 43.
And a contact pressure roller 7 rotatably attached to the frame 5.
And an upper thread switching mechanism 8 installed on the frame 5 so as to be located above the traverse mechanism 6, and a machine frame 1 for regulating the yarn path to wind the yarn around the empty tube at the start of winding. And a thread winding mechanism 11 attached to the frame 5 so as to move to a concave portion (A) formed by the contact pressure roller and the empty tube 70 at the winding position. I have.

The configuration other than the mounting portion of the spindles 42 and 43 to the turret member 2 is exactly the same as that shown in FIGS. 1, 3, 4 and 5, and the description is omitted.

The spindles 42 and 43 are supported by a turret member 2 and supported by a slide bearing 44 so as to be movable in the longitudinal direction of the shaft. A shaft 47 freely attached, a motor 48 coaxially mounted on the support cylinder 45, a coupling 49 connecting the shaft 47 and an output shaft of the motor 48, and a support cylinder attached to the turret member 2. A cylinder 50 mounted in parallel with the body 45 and having a piston rod 50a connected to the electric motor 48;
It comprises a detent pin 51 projecting from the turret member 2 and inserted into the support cylinder 45 for movement.

The shaft 47 is provided with a compressed air supply hole at the shaft center, and a piston 15 and a spring are mounted at the distal end thereof as in FIG. By compressing the tightening ring 17 from both sides by moving the cylindrical bodies 18 and 19 inserted in the tube, the tube is diametrically extended and presses against the inner peripheral surface of the tube to tighten.

A pressurized air supply pipe (not shown) having an electromagnetic valve is connected to the cylinder 50, and the solenoid valve is actuated based on a signal from a control device to switch the compressed air supply line to the cylinder 50. Of the piston rod 50a.

When compressed air is supplied to the cylinder 50 and the piston rod 50a projects, the shaft 47 moves together with the support cylinder 45 with respect to the turret member 2 so that the spindle 42 moves in the direction (c) on the support side. When it is moved and the piston rod 50a is retracted, the spindle 42 is moved in the (b) direction on the distal end side.

The yarn switching operation of the second yarn winding machine will be described with reference to FIGS. 29 to 31.

When a predetermined amount of the thread 80 is wound around the tube and becomes full, the turret member 2 is rotated and the fully wound tube 71 in the winding operation position is moved to the doffing operation position. The empty tube 70 at the lifting operation position is moved to the winding operation position.

Then, the yarn removing guide 20 of the upper yarn switching mechanism 8 is moved in a direction orthogonal to the running direction of the yarn, and is moved from the traverse guide 6a of the traverse mechanism 6 to the yarn 80.
Is extruded, the yarn 80 moves toward the traverse center.

Next, the yarn pulling guide 22 moves in the direction (C) from the standby position, and the yarn 80 is caught in the middle thereof.
When the yarn 80 is stopped at a position (F) on the same vertical line so as to travel toward the yarn catching portion (B), the cylinder 50 of the spindle 43 on which the full-wound tube 71 is mounted operates to operate the piston. The rod 50a protrudes, and as shown in FIG. 29, the spindle 43 is moved in the direction (c) on the support side.

Then, the yarn 80 travels while being guided by the yarn pulling guide 22, and is wound at the bunch winding (E) position of the yarn winding layer portion 71 a of the full tube 71.

Next, the yarn winding guide 37 of the yarn winding guide mechanism 11 projects toward the concave portion (A) formed by the contact pressure roller 7 and the empty tube 70 at the winding position, and the yarn winding of the full tube 71 is performed. When the yarn 80 is engaged with the yarn 80 running toward the bunch winding (E) position of the layer 71a, the yarn pulling guide 22 is positioned on a vertical line (G) of the bunch winding forming position (C) as shown in FIG. Moved to

When the yarn winding guide 37 projects to a predetermined position, the yarn 80 bites into the yarn catching portion (B) and is captured.

At this time, the cylinder 50 of the spindle 42
Is operated, the piston rod 50a is retracted, and the empty tube 70 moves in the (b) direction on the tip side of the spindle 42 together with the spindle 42 to perform a search operation, and the yarn 80 is moved to the yarn catching portion (B). It can be surely digged.

When performing the above-described searching operation, the yarn catching portion (B) is located on the support side of the spindle 42 from the position (F) of the yarn pulling guide 22 and the yarn catching portion (B) where the searching operation is completed is moved to the yarn catching portion (B). It is necessary to move the shift guide 22 so as to be located on the distal end side of the spindle 42 from the position (F) of the shift guide 22.

When the above-described yarn 80 is captured by the yarn catching portion (B), the yarn 80 separates from the yarn winding guide 37 and immediately reaches the bunch winding position (C) of the tube 70 as shown in FIG. ).

At this time, if the above-described spindle 42 is moved to perform the yarn searching operation, the traveling speed of the spindle 42 is slower than the traveling speed of the yarn 80, and therefore the traveling position (F ) Is regulated and travels on a vertical line, and the yarn 80 wound on the tube 70.
Is slightly moved toward the yarn catching portion (B) while being wound on the tube 70, and is wound twice so that the yarn 80 at the winding start portion is not unraveled.

Another yarn switching operation in the second yarn winding machine will be described with reference to FIG.

Instead of moving the full tube 71 in the yarn switching operation of the second yarn winding machine described above, the spindle 42 on which the empty tube 70 is mounted is moved in the (b) direction on the distal end side. Then, the same yarn switching operation as the above-described yarn switching operation is performed, and the yarn switching from the full tube 71 to the empty tube 70 can be performed.

In the above embodiment, the spindles 3, 4
The yarn was switched over by forming the yarn catching portion (B) on the support side of the spindle. However, with the configuration shown in FIGS. The thread can be formed and switched.

In the case of FIG. 9, a detachable ring 40 is fastened to the distal end of the empty tube 70 to form a yarn catching portion (B) by the end surface of the ring 40 and the end surface of the tube 70. .

In the case of FIG. 10, a stopper 4 elastically deformed by a piston 14 at the tip of the spindle 3, 4 is used.
When the piston 14 is moved to the support side of the shaft body 12 by the spring 15, the stopper 41 projects from the hole 14 a formed in the peripheral surface of the piston 14 and contacts the end surface of the empty tube 70. Thereby, a yarn catching portion (B) is formed.

[0088]

According to the present invention, the yarn winding machine is provided with a contact pressure roller.
On the upstream side, the yarn does not travel toward the yarn catching section,
To guide you to run toward the bunch winding position
Insert the thread guide and the thread support guide for regulating the upper thread path.
On the downstream side of the handle, an empty chain with the thread fastened to the spindle
Of the joint or tube where the ends of the
The end surface and the spindle provided for positioning the tube
Yarn catching part formed by the joint part where the step part side touches
For regulating the lower thread path to guide the vehicle to run toward
With a thread hooking guide or a thread searching guide
The yarn guide and the yarn support guide.
To engage the running yarn with the yarn catching section.
Of the thread winding guide, the contact pressure roller and the spindle
Concave space formed by an empty tube tightened to
Thread catch
Use a yarn winding tube without a groove
Ensure that the yarn is wound around the yarn catcher
As soon as the yarn is caught by the yarn catching section.
Moved to the bunch winding position and wound,
The bunch winding can be reliably formed in the position. Also,
Bunch winding start position from the yarn catching position in the yarn catching section
Thread length up to the bunch winding part
The dangling yarn hangs down at the time of doffing operation and other full
Get a package that doesn't get tangled in the tube
it can. Further, from the yarn engaging position in the yarn catching section, the yarn
As the length to the winding start position becomes shorter,
The time required for the winding tension to fall when changing
It is possible to prevent the success rate from lowering.

[0089]

[Brief description of the drawings]

FIG. 1 is a schematic front view showing a first embodiment of a yarn winding machine according to the present invention.

FIG. 2 is a view as seen from an arrow II in FIG. 1;

FIG. 3 is a schematic sectional view showing details of a spindle unit in FIG. 2;

FIG. 4 is a schematic enlarged view of a portion II in FIG. 1;

FIG. 5 is a view taken in the direction of the arrow III in FIG. 4;

FIG. 6 is a schematic enlarged view of a lower thread switching mechanism in FIG. 1;

7 is a view taken in the direction of arrows IV-IV in FIG. 6;

FIG. 8 shows a second example of the spindle in the yarn winder of the present invention.
It is a schematic diagram showing an example of.

FIG. 9 shows a third example of the spindle in the yarn winding machine of the present invention.
It is a schematic diagram showing an example of.

FIG. 10 is a schematic view showing a fourth embodiment of the spindle in the yarn winding machine of the present invention.

FIG. 11 is a schematic view showing a second embodiment of the tube used in the yarn winding machine of the present invention.

FIG. 12 is a schematic view showing a second embodiment of the tube used in the yarn winding machine of the present invention.

FIG. 13, FIG. 14, FIG. 15, FIG. 16, FIG. 17, FIG.
It is the schematic which shows the yarn winding operation | movement at the time of the start of yarn winding in the 1st yarn winding machine of this invention.

FIG. 19 is a schematic view showing a yarn path at the time of a yarn winding operation in the first yarn winding machine of the present invention.

FIG. 20 is a schematic enlarged view of a yarn catching joint.

FIG. 21, FIG. 22, FIG. 23, FIG. 24, FIG.
It is the schematic which shows the yarn switching operation in the 1st yarn winding machine of this invention.

FIG. 27 is a schematic front view showing a second embodiment of the yarn winding machine of the present invention.

FIG. 28 is a view taken in the direction of arrows VV in FIG. 27;

FIGS. 29, 30, and 31 are schematic views showing a first yarn switching operation in the second yarn winding machine of the present invention.

FIG. 32 is a schematic view showing a second yarn switching operation in the second yarn winding machine of the present invention.

FIG. 33 is a schematic view showing one embodiment of a tube used in a conventional winding machine.

34 is a view taken in the direction of arrows VI-VI in FIG. 33.

35 is a view taken in the direction of the arrows VII-VII in FIG. 33.

FIG. 36 is a schematic view showing a yarn path during a yarn winding operation in a conventional yarn winding machine.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Machine frame 2 Turret member 3, 4, 42, 43 Spindle 5 Frame 6 Traverse mechanism 7 Contact pressure roller 8 Upper thread switching mechanism 9 Lower thread switching mechanism 10 Threading mechanism 11 Thread winding mechanism 12, 14, 46 Bearing 13, 47 Shaft 15 Piston 16 Spring 17 Tightening ring 18, 19 Cylindrical body 20 Thread release guide 21, 23, 27, 28, 31, 38 Cylinder 22 Thread guide 24 Thread support guide 25, 32, 34, 36 Arm 26 Partition plate 29 Thread guide 30 Bunch winding guide 32 Support rod 33 Thread guide 37 Thread guide 39, 40 Ring 41 Stopper 44 Slide bearing 45 Support cylinder 48 Motor 49 Coupling 50 Cylinder 70 Empty tube 71 Fully loaded tube 80 Thread 9 0 Suction gun 6a Traverse guide 13a, 14a Hole 13b Compressed air chamber 13c, 13d Step portion 24a Support portion 24b Guide portion 39a Groove portion 50a Piston rod 70a Notch 70b Cut A A recess formed by the contact pressure roller and the empty tube at the winding position B Yarn catching part C, E Bunch winding D Tail winding F Yarn catching part corresponding position G Bunch winding corresponding position

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-238663 (JP, A) JP-A-54-64147 (JP, A) Jikyo Hei 2-3477 (JP, Y2) (58) Field (Int.Cl. ⁶ , DB name) B65H 54/34

Claims (1)

(57) [Claims] A traverse mechanism for traversing the yarn;
Roller and spindle for tube tightening move yarn
Are arranged sequentially from upstream to downstream in the direction
In the winding machine, a yarn is provided on the upstream side of the contact pressure roller.
Move to the bunch winding position without traveling toward the yarn catching section.
For regulating the upper thread path to guide you to run toward
Move the yarn pulling guide and the yarn support guide downstream of the spindle.
The end of the empty tube where the thread is fastened to the spindle
Between the joint or tube end face
The side of the step for positioning the tube provided on the handle
Running towards the yarn catching section formed by the
Thread guide for lower thread path regulation for guiding
And a guide for searching for the thread
The vehicle is guided by the guide and the yarn support guide.
A yarn winding guide for engaging a yarn with the yarn catching portion.
And an empty chip tightened to the contact pressure roller and spindle.
To be located in the concave space formed by the tube
A yarn winding machine characterized in that it is provided in a.