JPH06299417A - Top bunch wind forming apparatus of yarn winder - Google Patents

Abstract

PURPOSE:To dispense with an exclusive actuator, decrease the actuator and its piping, wiring and control system and simplify the construction of a top bunch wind forming apparatus of a yarn winder. CONSTITUTION:The apparatus is provided with a 1st guide plate 10 positioned at a part shifted toward the center axis of a bobbin 100 relative to the plane T corresponding to the orbit of winding yarn, a 2nd guide plate 20 positioned opposite to the 1st guide plate 10 relative to the plane T, a cutter 30 to cut the yarn Y entered to a prescribed depth of a slit 11 of the 1st guide plate 10 and a driving means 40 to turn the 2nd guide plate 20. The 2nd guide plate 20 is turned toward the 1st guide plate 10 at the end of winding to introduce the traversing yarn Y into the slit 11 and form a top bunch wind at a prescribed position. At the same time, the guide plate 20 is further turned in the same direction to cut the yarn Y introduced to a prescribed depth of the slit 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a top bunch winding forming device for a yarn winding machine.

[0002]

2. Description of the Related Art Generally, when winding a yarn on a yarn winding bobbin, a top-top bunch winding is formed at the end of the winding. This top bunch winding is the tip of the yarn wound on the bobbin at the time of use, and the pick tail portion of the yarn wound on another bobbin (the slit for thread hooking and the winding area at the start of winding). The yarns for several windings formed between them become the rear end when used), so that the yarns can be continuously used.

Conventionally, a device for forming this top bunch winding (hereinafter, also simply referred to as a bunch winding) has a bunch winding applying guide for guiding the yarn to a bunch winding forming region and a cutter for cutting the yarn at the end of the bunch winding. And a plurality of actuators (for example, an air cylinder and a solenoid) that individually drive these actuators, and the actuators are activated only when forming a bunch winding at the end of winding. .

[0004]

However, in such a conventional top bunch winding forming device for a yarn winding machine, a plurality of dedicated actuators are provided to drive the bunch winding applying guide and the cutter. Therefore, there is a problem that the configuration of the device including the piping, wiring, and control system becomes very complicated.

Further, due to the relationship with the traverse mechanism, there is a limit to the space for installing the guide, the cutter, and these actuators, and the design of the device has not been easy.
Therefore, it is an object of the present invention to provide a top bunch winding forming device for a yarn winding machine having a simple structure by reducing the actuator, its piping, wiring, and control system.

[0006]

To achieve the above object, a top bunch winding forming device for a yarn winding machine according to the present invention comprises:
The yarn winding bobbin is rotatably supported by a cradle arm, and the swinging of the arm moves the yarn winding bobbin to a predetermined yarn winding position, while traversing the yarn with a traverse guide. In a yarn winding machine wound on a bobbin, extending along the yarn winding bobbin on the central axis side of the yarn winding bobbin from a traverse surface corresponding to the locus of the yarn being wound. Together with a first guide plate having a recess formed toward the traverse surface at a predetermined top bunch winding formation position, and on the traverse surface so as to be located on the side opposite to the first guide plate with respect to the traverse surface. A second guide plate that opposes and is rotatable so as to move one end close to the first guide plate in a direction substantially orthogonal to the traverse surface, and a yarn that has entered the recess to a predetermined depth of the recess is cut. And a driving means for rotating the second guide plate, the second guide plate is rotated toward the first guide plate side when winding is completed, and the yarn being traversed is removed. It is removed from the traverse guide and introduced into the recess to form a bunch winding at the predetermined top bunch winding forming position, and the second guide plate is further rotated in the same direction to bring the yarn to the predetermined depth of the recess. It is characterized by allowing it to enter and cutting.

[0007]

In the present invention, the drive means is configured to move to the second position when the winding is completed.
When the guide plate is rotated to the first guide plate side, the yarn in the traverse is traversed while engaging with the first guide plate, and is disengaged from the traverse guide at the predetermined top bunch winding formation position and enters the recess. The top bunch winding is formed by rotating the yarn winding bobbin in this state. Then, when the second guide plate is further rotated in the same direction, the thread enters the recess to a predetermined depth and is cut by the cutter arranged at the predetermined position, and the winding operation is completed. Therefore, a plurality of dedicated actuators for driving the guide member for forming the bunch winding and the cutter, and their piping, wiring, etc. are unnecessary.

[0008]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3 are views showing an embodiment of a top bunch winding forming device of a yarn winding machine according to the present invention.
First, the configuration will be described.

1 to 3, reference numeral 100 denotes a cylindrical yarn winding bobbin formed of, for example, a paper material, and the yarn winding bobbin 100 has a yarn hooking slit 101 at one end thereof. is doing. This yarn winding bobbin 100 has left and right cradle arms 1 via clamp members (not shown) at both ends.
It is rotatably supported by A and 1B. Both cradle arms 1A and 1B are configured so as to be able to swing around a shaft 2. Therefore, the yarn winding bobbin 100 can be brought into contact with the friction roller 3 at a predetermined yarn winding position shown in FIG. 1, and can be moved in a direction away from the friction roller 3 due to thickening of the yarn. It can be stopped at the dispensing position. The friction roller 3 is driven by a variable speed motor (not shown). Reference numeral 4 denotes a yarn guide rod provided parallel to the yarn winding bobbin 100 and the friction roller 3, and the yarn Y sent from the spinning machine (not shown) is separated from the yarn winding bobbin 100. Bobbin 100 for winding the yarn through this yarn guide bar 4 in the position
Supplied to the side. Reference numeral 5 is a traverse guide for traversing the yarn Y in the axial direction of the yarn winding bobbin 100, and the traverse guide 5 forms a traverse surface T corresponding to the locus of the yarn Y being wound by its reciprocal movement. . That is, the yarn Y is reciprocated in the left-right direction in FIG. 2 by the traverse guide 5 on a predetermined yarn supply trajectory (a yarn traveling trajectory shown by a solid line in FIG. 1) that engages with the traverse guide 5.
The bobbin 100 for winding the yarn is wound in a predetermined winding region.

A first guide plate 10 is provided above the traverse surface T (on the side of the central axis of the yarn winding bobbin 100) so as to extend along the yarn winding bobbin 100. Cage,
A slit groove 11 (recess) that opens toward the traverse surface T is formed in the first guide plate 10 in correspondence with a predetermined top bunch winding formation position. Further, the lower end portion of the first guide plate 10 is a yarn guideable portion (smooth surface portion) which keeps a predetermined distance from the traverse surface T.

A second guide plate 20 is provided on the side opposite to the first guide plate 10 with respect to the traverse surface T, and the second guide plate 20 faces the traverse surface T at its upper surface. Figure 1
As shown in, the second guide plate 20 is supported by the support shaft 21, and is rotatable so as to move one end close to the first guide plate 10 in a direction substantially orthogonal to the traverse surface T. Below the first guide 10 and on the side of the first guide plate 10 from the traverse surface T, a cutter 30 formed by intersecting two cutting edges in a substantially V shape is arranged. The cutter 30 has a predetermined depth of the slit groove 11. By the way, it is a fixed cutter that cuts the yarn Y that has entered the slit groove 11 at the trough of the substantially V-shaped cutting edge.

The second guide plate 20 is driven by a motor 50 for driving the cradle arm.
Specifically, as shown in FIGS. 3A to 3C, the motor 50 is connected to a rotating body 53 including a shaft portion 51 and a disc portion 52, and the rotating body 53 has the disc portion 52. The pin 54 planted on the shaft 54 of the drive side gear 55 supported by the shaft portion 51 through the bearing 56.
It is engaged with 55a. The rotating body 53 and the gear 55 can rotate relative to each other only within a range in which the pin 54 moves in the groove 55a, and the motor 50 rotates in the clockwise or counterclockwise direction in FIG. When the gear 55 rotates, the gear 55 is driven when it rotates, and the cradle arms 1A and 1B swing together with the gear 57 meshing with the gear 55. On the other hand, a cam 41 is fixed to the shaft portion 51 of the rotating body 53, and a cam follower 42 engaging with the cam 41 is attached to one end of a link bar 42a having a rotation fulcrum in the middle.
The other end of “a” is connected to the second side through the wire (or link bar) 43.
It is connected to the guide plate 20. Then, as shown in FIG. 3 (c), when the cam 41 rotates and the cam follower 42 passes the slope 41a of the cam 41, the second guide plate 20 moves upward from the solid line position to the imaginary line position in FIG. The yarn Y in the traverse moves along the lower end of the first guide plate 10 and is introduced into the slit groove 11 to be separated from the traverse guide 5. When the cam 41 further rotates in the same direction and the cam follower 42 passes the slope 41b of the cam 41,
The second guide plate 20 rotates in the same direction from the phantom line position in FIG. 1 to the broken line position, and the second guide plate 20 and the yarn winding bobbin 10 are rotated.
The yarn Y running between 0 is brought into contact with the cutter 30 and cut.

When the yarn Y is hooked on the yarn winding bobbin 100, the yarn hooking member 60 is engaged with the yarn Y at an engaging position away from the bobbin 100, and the yarn Y is wound. Y is introduced into the slit 101 of the spinning bobbin winding bobbin 100, and the yarn hooking member 60 is also driven by a drive system shown in FIG. 3 using a cam (not shown). The link bar 42a is biased counterclockwise in FIG. 3 (c) by a spring (not shown), and the cam follower 42 is driven by the motor 50.
By riding on the slope 41a of the cam 41 driven by the second guide plate 20 against the biasing force of the spring.
Can be rotated upwards. Further, the yarn Y is sent to the yarn guide bar 4 from an upper position corresponding to the vicinity of the central portion in the width direction of the yarn winding area, and is cut by the cutter 30 at the end of winding to be sucked by a suction means (not shown). Has become. From this state, the yarn is moved in parallel along the yarn guide rod 4 by the yarn pulling guide 71, is pulled to the right side in FIG. 2, and is delivered to the yarn hooking member 60. The movement of each member is detected by a sensor (not shown).

Next, the operation will be described. Bobbin for winding the yarn with the cradle arms 1A and 1B in the dispensing position
100 is supported by both arms 1A and 1B, and the motor 50 is shown in FIG.
When rotated by a predetermined amount in the direction opposite to the arrow direction shown in (b) and (c), the cradle arms 1A and 1B are driven via the rotating body 53 and the gears 55 and 57 to swing in the direction approaching the friction roller 3. The bobbin 100 for winding the yarn abuts on the friction roller 3. At this time or before that, the friction roller 3 is rotationally driven.

Next, the yarn hooking member 60 is operated, the yarn Y is introduced into the yarn hooking slit 101, bites into the slit 101, and is locked by the yarn winding bobbin 100. Then, the yarn winding bobbin 100 is pulled by the rotation of the bobbin 100 and travels on the right side of the first guide plate 10 in FIG. At this time, the succeeding portion of the yarn Y that has entered the yarn hooking slit 101 abuts on a pigtail forming guide (not shown), and is wound around the yarn winding bobbin 100 for a predetermined time while being guided to the pigtail forming position by the guide. To be

Then, after the time is up, the thread hooking member 60 is returned and the pigtail forming guide is lowered, so that the yarn Y is lowered by the winding tension on the yarn winding bobbin 100 and an inclined guide (not shown). Is guided to the left in FIG. 2 and engages with the traverse guide 5. After that, the yarn Y is traversed in the left-right direction in FIG. 2 by the movement of the traverse guide 5, and is wound into a predetermined winding region of the yarn winding bobbin 100. During this winding, the cradle arms 1A and 1B ascend as the yarn winding bobbin 100 winds up, and the circular arc groove 55a of the gear 55 starts from the imaginary line position at the start of winding shown in FIG. 3 (b). When it turns clockwise in the figure to reach a substantially predetermined winding length, it reaches the solid line position (position in the case of thickening in the drawing). At this time, the pin 54 has not yet reached the groove end of the circular arc groove 55a.

When the winding length of the yarn Y reaches a predetermined length (a predetermined winding time elapses), the motor 50 operates as shown in FIG.
Rotate a predetermined amount in the direction of the arrow (c). At this time, the cam 41 rotates and the cam follower 42 passes through the slope 41a of the cam 41,
The second guide plate 20 rotates upward (on the side of the first guide plate 10) from the solid line position to the virtual line position in FIG. Therefore, after the yarn Y in the traverse moves along the lower end portion of the first guide plate 10, it is introduced into the slit groove 11 and separated from the traverse guide 5.

In this state, the bobbin 100 for winding the yarn
By rotating, the top bunch winding is formed at a predetermined bunch winding forming position. When the bunch winding is completed (when the predetermined number of windings set by the timer or the bunch winding forming time elapses), the motor 50 is further driven and the cam 41 further rotates in the same direction, so that the cam follower 42 moves the slope 41b of the cam 41. Pass through. Therefore, the second guide plate
20 further rotates in the same direction from the phantom line position to the broken line position in FIG. 1, and the yarn Y running between the second guide plate 20 and the yarn winding bobbin 100 is cut by the cutter 30, Further, the cut yarn is suction-held by an aspirator (not shown), and a series of winding is completed.

As described above, in this embodiment, the cam 41 is driven by the motor 50 for driving the cradle arms 1A and 1B.
The second guide plate 20 for forming the bunch winding is simply rotated in the vertical direction by the cam 41, and
The guide 10 and the cutter 30 are fixedly arranged. Therefore, a plurality of dedicated actuators for driving the guide member for forming the bunch winding and the cutter are not required, and the piping and wiring of the actuator and its control system are not required, and the bunch winding forming device has a simple structure. Further, the drive means for the first and second guide plates 10 and 20, the cutter 30, and the second guide plate 20 can be provided separately from the traverse mechanism and can be provided compactly, and even if the installation space is limited, it is easy. It can be designed and manufactured, and the cost can be reduced.

[0020]

According to the present invention, when the winding is completed, the second guide plate is rotated to the first guide plate side by the driving means to introduce the yarn in the traverse into the concave portion at the top bunch winding forming position. Since the second guide plate is further rotated in the same direction to cut the yarn that has entered the recess to a predetermined depth by the cutter, a plurality of guide members for forming the bunch winding and a plurality of drives for driving the cutter are formed. It is possible to provide a top bunch winding forming device having a simple structure by reducing the dedicated actuator, its piping, wiring, and the like.

[Brief description of drawings]

FIG. 1 is a side view showing a main configuration of an embodiment of a top bunch winding forming device for a yarn winding machine according to the present invention.

FIG. 2 is a view taken along arrow KK in FIG.

FIG. 3 is a configuration diagram of a drive system of the cradle arm and the second guide plate, (a) is a plan view including a partial cross section thereof,
(b) is the LL arrow view of (a), (c) is the MM arrow view of (a).

[Explanation of symbols]

 1A, 1B Cradle arm 5 Traverse guide 10 1st guide plate 11 Slit groove (concave) 20 2nd guide plate 30 Cutter 40 Drive means 41 Cam 50 Motor (motor to drive cradle arm) 100 Thread winding bobbin

Claims (1)

[Claims] 1. A bobbin (100) for winding a yarn is rotatably supported by a cradle arm (1A, 1B), and the arm is rotatably supported.
The bobbin (100) for yarn winding is moved to a predetermined yarn winding position by swinging (1A, 1B), and the bobbin (100) is traversed by the traverse guide (5) while the yarn (Y) is being traversed. In the yarn winding machine that winds up the yarn, the traverse surface (T) corresponding to the locus of the yarn (Y) being wound.
The yarn winding bobbin (100) extends along the central axis side of the yarn winding bobbin (100) and is opened at a predetermined top bunch winding forming position toward the traverse surface (T). And a first guide plate (10) having a concave portion (11) formed therein and facing the traverse surface (T) so as to be located on the side opposite to the first guide plate (10) with respect to the traverse surface (T). A second guide plate (20) which is rotatable so as to move one end close to the first guide plate (10) in a direction substantially orthogonal to the traverse surface (T), and a predetermined depth of the recess (11). Thread that has entered the recess (11)
Cutter (30) placed in place to cut (Y)
And a drive means (40) for rotating the second guide plate (20), and when the winding is completed, the second guide plate (20) is rotated toward the first guide plate (10) side during traverse. Of the yarn (Y) is removed from the traverse guide (5) and introduced into the recess (11) to form a bunch winding at the predetermined top bunch winding forming position, and the second guide plate (20) is further attached. A top bunch winding forming device for a yarn winding machine, which is rotated in the same direction to allow the yarn (Y) to enter a predetermined depth of the recess (11) and cut.