JP3209165B2 - Threading device in spinning winder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn hooking device for a yarn winding machine, and more particularly to a yarn winding device in which a continuously supplied yarn is moved between a winding position and a standby position by projecting two bobbin holders. In a revolving type yarn winding machine that continuously winds up by switching from full bobbin to empty bobbin, the yarn is threaded onto the empty bobbin at the winding position at the start of continuous operation. The present invention relates to a hanging device.

[0002]

2. Description of the Related Art First, a basic structure of a turret type winder will be described with reference to FIG. The machine frame 7 includes a vertically movable box 1, a rotatable turret plate 2,
A fixed frame 8 having an operation box 10 is provided at the front end. A touch roller 3 to lift the box 1, the traverse device 4 be supported respectively, the touch roller 3 is pressed against the yarn surface layer of the bobbin B at the winding position P _1, the bobbin B in the take-up It is driven to rotate counterclockwise by a drive source.

Further, the traverse device 4 is provided with a traverse guide 6, and the traverse guide 6 engages with the yarn Y and travels in the traverse range to traverse the yarn Y. The turret plate 2 is rotatable around a rotation shaft 9 by a rotation driving device (not shown).
The bobbin holders 11 and 12 are rotatably projectingly supported on the turret plate 2, respectively.
A plurality of bobbins B (six in the figure) each having a slit on one end side peripheral surface are mounted on 12, one bobbin holder 11 is located at a winding position P ₁ , and the other bobbin holder 12 is located at a standby position P ₂ . are doing.

[0004] In this kind of spinning winder, a yarn hooking device for hooking a yarn to an empty bobbin at a winding position is provided at the start of the continuous operation. Thread the empty bobbin at the take position,
Perform winding to an empty bobbin in the winding position, filled with stage became wound by rotating the turret plate 2 180, to the standby position P ₂ to the full bobbin FB from the winding position P _1, a new empty bobbin the EB is moved from the standby position P ₂ to the winding position P _1, performs yarn transfer to the empty bobbin EB from the full bobbin FB by the yarn switching device.

In this manner, the continuously supplied yarn Y
Is wound up alternately by two bobbin holders 11 and 12. In addition, the full bobbin FB in the standby position P ₂
A separator 61 for preventing the yarn end of the reel from being caught in the empty bobbin EB at the winding position P ₁ is supported on a shaft 68 so as to be freely rotatable.

[0006] As shown in FIG. 9, the conventional take-up winder yarn threading device 60, the two bobbin holders 11 and 12 switched to the winding position P ₁ or the standby position P _2, the standby position P ₂ In a spinning winder including a separator 61 for a certain bobbin holder,
1a, a slide device 62 for driving a thread hooking member 63 corresponding to the number of bobbins to a predetermined position or a collecting position is provided, and the separator 61 is moved to a standby position (retreat position) a and a threading position (thread engaging position) b. And a catch position (thread contact position) c.

[0007] In FIG. 9, reference numeral 64 is a yarn suction means for sucking the yarn Y, the reference numeral 65, is in the winding position P ₁ from the full bobbin FB in the yarn Y at the standby position P ₂ A yarn switching device for switching to the empty bobbin EB, and reference numerals 66 and 67 indicate pneumatic cylinders.

[0008]

In THE INVENTION Problems to be Solved The conventional yarn engaging at a predetermined position leave position adjustment to match the slit position of the empty bobbin EB at the winding position P ₁ a threading position b of the sliding device 62 After the thread is engaged with the member 63 and the thread hooking member 63 is moved to a predetermined position, the separator 61 is moved from the threading position b to the catch position c.
Is pressed against the empty bobbin EB, and the empty bobbin EB
However, there is a problem that the slit position of the empty bobbin EB varies and the yarn may not be caught by the slit, resulting in a poor yarn hooking success rate.

Therefore, the present invention has been made in view of the problems existing in the above-mentioned conventional technology, and a spinning winder capable of improving a yarn threading success rate in a spinning winder. An object of the present invention is to provide a yarn hooking device in a machine.

[0010]

According to the present invention, in order to achieve the above object, specifically, a continuously supplied yarn is traversed by a traverse device, and a contact roller is rotated in contact with a bobbin. A turret that winds the yarn around the bobbin and supports two bobbin holders for mounting the bobbins. By rotating the turret, the bobbins of the two bobbin holders are alternately switched between a winding position and a standby position. In a spinning winder having a switching operation and having a yarn switching means for passing a traveling yarn reaching a full bobbin to the empty bobbin with the switching operation, at the start of the continuous operation, the yarn winding machine moves to the empty bobbin at the winding position. A yarn hooking device for hooking a yarn at a retracted position, a yarn engaging position for engaging the yarn, and a yarn contacting position for bringing the yarn into contact with the bobbin. A thread hooking member serving as a thread guide means that can be freely stopped, a thread catching means for bringing a thread engaged with the thread catching member at the thread catching position into contact with a bobbin, and a thread switching means, A thread sliding means for sliding the thread in contact with the bobbin along the bobbin toward the thread catching groove, wherein the thread guide means and the thread abutting means actuated at the start of a continuous operation;
A yarn in a yarn winding machine configured to cooperate with a yarn sliding means in the yarn switching means used at the time of a switching operation so as to hang a yarn in a yarn catching groove of an empty bobbin at a winding position at the start of a continuous operation. This constitutes a hanging device.

Further, according to the present invention, the thread applying means comprises an arm member, the thread engaging member is provided at a tip of the arm member, and the thread engaging member is located at a position close to the bobbin at the thread applying position. The yarn hooking device of the spinning winder in which the length of the arm member is set as described above.

Still further, according to the present invention, the spinning winder includes a separator for separating between a full bobbin and an empty bobbin during yarn switching, and a yarn guide is provided at a tip of the separator. The yarn hooking device may be configured to function as the yarn applying means, and the yarn hooking device may be configured to shorten the length of an arm member provided with the yarn hooking member at the distal end.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a spinning winder according to the present invention will be described in detail based on a specific embodiment shown in the drawings. FIG. 1 is a schematic front view showing a specific example of a spinning winder to which the present invention is applied.
Fig. 3 shows a first embodiment of a yarn hooking device in a spinning winder according to the present invention, and is a schematic front view additionally showing an operation mode of the yarn hooking device. 3
FIG. 4C is a schematic front view showing an example of the driving means applied to the first embodiment, and FIG. 4 shows a second embodiment of the yarn hooking device in the spinning winder according to the present invention. 5A and 5B are schematic front views showing an operation mode of the yarn hooking device, and FIGS. 5A to 5B are schematic diagrams showing examples of driving means applied to the second embodiment. FIG.

First, a basic structure of a spinning winder according to the present invention will be described with reference to FIGS. 1, 7 and 8.
1, 7 and 8, a body frame 7 has a lift box 1 which can be raised and lowered and a turret plate 2 which is rotatable.
And a fixed frame 8 having an operation box 10 at the front end.

The lifting roller 1 includes a touch roller 3
, A traverse device 4 and a yarn guide device 5 are respectively supported. The touch roller 3 is intended for pressing the yarn layer of the bobbin B at the winding position P ₁ to be described later, and the bobbin B to supplementarily rotated in the counterclockwise direction in FIG. 1. Further, the traverse device 4 is provided with a blade 6, and the blade 6 engages with the yarn Y and travels in the traverse range to traverse the yarn Y.

Further, upstream of the traverse device 4,
When transferring the yarn Y by switching the position of the full bobbin FB and the empty bobbin EB, the engagement between the yarn Y and the blade 6 is released, and the yarn Y
Guide device 5 for moving the yarn out of the traverse range
Is provided. The yarn guide device 5 includes a yarn pulling guide 51, a yarn removing guide 52, and a fixed yarn guide 53.

The turret plate 2 is rotatable about a rotation shaft 9 by a rotation driving device (not shown), and two bobbin holders 11 and 12 are rotatably projectingly supported on the turret plate 2, respectively. . The two bobbin holders 11 and 12 are driven to rotate by spindle motors 13 and 14, respectively. On the other hand, the touch roller 3 includes a pulse generator 15, and is driven to rotate by an auxiliary drive source 16 (see FIG. 8).

[0018] The control of bobbin holder 11, 12 detects the rotation of the touch roller 3 to contact the yarn surface layer of the bobbin of the winding in the take-up at the winding position P _1, the pulse generator 15
Is transmitted to a control device (not shown), and the spindle motors 13 and 14 are feedback-controlled via an inverter to keep the peripheral speed of the touch roller 3 constant (see FIG. 8). .

Each of the bobbin holders 11 and 12 has several bobbins B having a slit (yarn catching groove) 17 at one end as a yarn catching means (6 in the example shown in FIGS. 7 and 8).
Number) is inserted, during winding the one of the bobbin holder 11 is the winding position P _1, the other bobbin holder 12 is the standby position P
Located at ₂ .

The turret plate 2 rotates 180 degrees when the bobbin B at the winding position P ₁ is fully wound with the yarn Y, switches the positions of the bobbin holders 11 and 12, and newly moves to the winding position P _1. Thread Y from full bobbin FB to empty bobbin EB located
And continue winding continuously. In FIG. 1, the state at the time of passing the yarn Y is shown by a virtual line.

The fixed frame 8 protrudes from the main frame 7 at a position where it does not hinder the elevating box 1 from moving up and down, that is, at a position obliquely above the turret plate 2 and parallel to the elevating box 1. An operation box 10 is provided at the front end of the fixed frame 8 and is hollow inside the fixed frame 8 except for a portion through which wiring passes. Below the fixed frame 8, an automatic thread switching device 20, which will be described later, is provided. Also,
The lower side of the main body frame 7 is constituted by a base frame 19 extending in parallel with the bobbin holders 11 and 12.

In FIG. 1, reference numeral 18 is a separator. This separator 18 is usually a full bobbin FB
Is configured to prevent interference with the full bobbin FB during rotation of the turret plate 2 and to partition between the full bobbin FB and the empty bobbin EB during yarn switching. I have. The full bobbin FB is at the standby position P ₂
In order to prevent the yarn end on the full bobbin FB side from floating, the separator driving cylinder device 25 pivots around the pivot point 26 in the direction of the arrow so as to cover the full bobbin FB. .

In the present invention, in the automatic thread switching device 20, a slide plate 24 is combined with a swing arm 23 so as to be able to advance, and a slide thread guide 21 and a fixed thread guide 22 are provided at a distal end 24a of the slide plate 24. Is made of things. The slide plate 24 in the automatic yarn switching device 20, to advance at a predetermined timing during the switching operation of the winding position P ₁ of the empty bobbin EB, the slide yarn guide 21 is configured to move in the axial direction of the bobbin ,
The traveling yarn Y contacts the empty bobbin EB reaching the winding position P ₁ along the empty bobbin EB functions as a yarn sliding means is slid toward the slit 17. The sliding stroke of the slide thread guide 21 is set so that the traveling thread Y can slide to a position beyond the slit 17. The fixed yarn guide 22 is a guide for preventing the yarn from falling off the yarn layer of the full bobbin FB. As will be described later, the yarn guide device 5 and the automatic yarn switching device 20 cooperate to transfer yarn from the full bobbin FB to the empty bobbin EB.

The yarn hooking device in a take-up winder becomes the present invention, at the start of continuous operation, (trouble-free position in continuous operation) the retracted position to perform the yarn threading of the empty bobbin EB at the winding position P ₁ P _A1 , a threading position (a thread engagement position for engaging the traveling yarn Y with a later-described thread hooking member 30) P _A2, and a catch position (a thread contact position for bringing the traveling yarn Y into contact with the empty bobbin EB) P _A3. And a thread hooking means 27 which can be stopped freely. A first embodiment of the yarn hooking means 27 will be described with reference to FIGS. The yarn hooking means 27 according to the first embodiment includes an arm member (thread hitting means) 28 rotatable around a pivot point 29 and a thread hooking member provided at the tip of the arm member (thread hitting means) 28. (Guide means) 30.

Further, the threading means 27 according to the first embodiment includes a first driving means 31 having an operation stroke between the retreat position _PA1 and the catch position _PA3, and a threading position _PA2 . And second driving means 32 for positioning. The first driving means 31 is a fluid pressure cylinder, and the output end 33a of the cylinder rod 33 is
4 is connected to a pivot point 29 of the arm member 28.

The second drive means 32 is a fluid pressure cylinder, and an output end 35a of the cylinder rod 35 is provided with an elongated hole 36 extending in the axial direction. On the other hand, a pin member 37 is provided at an intermediate position of the rotating member 34, and the pin member 37 is provided at an output end 35a of the cylinder rod 35 of the second driving means 32. Is engaged and connected.

The yarn hooking means 27 in the first embodiment having the above-described structure operates as follows. First, (in this state, the standby position P ₂ side is empty bobbin EB state) state empty bobbin EB is brought into the winding position P ₁ in, when starting the continuous operation, depending from the spinning machine The yarn Y is sucked and captured by the yarn suction means 42. In this state, the yarn hooking means 27 is operated. The arm member 28 is pivoted to the pivot point 29 by the second driving means 32.
From the retracted position P _A1 to the threading position P _A2
The yarn Y hanging from the spinning machine.
Thread at 0.

The yarn Y hanging from the spinning machine is supplied to the yarn hooking member 30.
In the state where the thread is hooked, the first driving means 31 rotates the arm member 28 around the pivot point 29 to bring the arm member 28 from the threading position _PA2 to the catch position _PA3 .
Thus, against which the traveling yarn Y engaged with the yarn hooking member 40 pushes the empty bobbin EB of the winding position P _1. Yarn Thereafter, or up to this, the empty bobbin EB from between (full bobbin FB to the bobbin yarn switching means 20 operates and the slide plate 24 and bobbin winding position P ₁ to the standby position P ₂ At the same position as when handing over). The slide yarn guide 21 is operated, the empty bobbin E of winding position P ₁
The running yarn Y pressed against B is slid toward the slit 17 along the empty bobbin EB. As a result, the traveling yarn Y reaching the slit 17 is captured by the slit 17. In this way, the yarn is applied to the empty bobbin EB in winding position P _1.

In this embodiment, since the slide thread guide 21 of the thread switching means 20 is used as the thread slide means, there is an advantage that it is not necessary to add a separate thread slide means for thread hooking. Further, in this embodiment, the thread applying means is configured so that the arm member 2 swings around the center of the shaft 29.
8, a thread hooking member 30 is attached to the tip of the arm member 28.
And the thread hooking member 3 at the catch position _PA3.
The length of the arm member 28 is set so that 0 is a position close to the empty bobbin EB. For this reason, the yarn suction means 42
(Particularly, the bending of the traveling yarn hung on the empty bobbin held on the root side of the bobbin holder can be reduced).

Next, a second embodiment of the yarn hooking means 27 will be described with reference to FIGS. The yarn hooking means 27 according to the second embodiment includes an arm member 38 rotatable around a pivot point 39 and a yarn hooking member 40 provided at the tip of the arm member 38.
Further, in this embodiment, a separator 18 described later also functions as a part of the thread hooking means.

Further, the yarn hooking means 27 according to the second embodiment has a driving means 41 having an operation stroke between the retreat position P _B1 and the threading position P _B2 . The driving means 41 is a fluid pressure cylinder, and a fan-shaped gear 45 meshing with a disk gear 44 attached to a pivot point 39 of the arm member 38 is attached to an output end 43a of the cylinder rod 43, By driving of the driving means 41, the arm member 38 can be turned around the pivot point 39 and can be turned from the retreat position P _B1 to the threading position P _B2 .

The yarn hooking means 27 in the second embodiment having the above-described structure operates as follows. First, in a state in which the winding position P ₁ the empty bobbin EB is brought, at the start of the continuous operation, the yarn hanging down from a spinning machine Y
Is sucked and captured by the yarn suction means 42. In this state, the yarn hooking means 27 is operated. The driving means 4
By means of 1, the arm member 38 is rotated about a pivot point 39 to be positioned from the retreat position P _B1 to the threading position P _B2 , and the thread Y hanging from the spinning machine is threaded by the thread hooking member 40.

The yarn Y hanging from the spinning machine is fed to the yarn hooking member 40.
In the state where the yarn is hooked, the separator driving cylinder device 2
5 is operated to pivot the separator 18 about the pivot point 26 in the direction of the arrow. In the case of this embodiment, the separator 18 is provided with a pushing projection 18a which comes into contact with the arm member 38 of the yarn hooking means 27, so that the operation of the separator drive cylinder device 25 allows the arm member 38 The (thread hooking member 40) can be pushed from the threading position P _B2 to the catch position P _B3 .

In the case of this embodiment, a thread guide is provided at the tip of the separator 18, and the separator 18 functions as thread applying means. By the separator 18, by the running yarn Y engaged with the yarn hooking member 40 is pushed, the traveling yarn Y is pressed against the empty bobbin EB in winding position P _1. Yarn Thereafter, or up to this, the empty bobbin EB from between (full bobbin FB to the bobbin yarn switching means 20 operates the slide plate 24 is winding position P ₁ of the bobbin and the standby position P ₂ At the same position as when handing over). Then, the slide thread guide 21 operates to take up the winding position P _1.
Of the traveling yarn Y pressed against the empty bobbin EB
Slide along B toward slit 17. As a result, the traveling yarn Y that has reached the slit 17
Is captured by In this way, the yarn is applied to the empty bobbin EB in winding position P _1.

Also in this embodiment, since the slide thread guide 21 of the thread switching means 20 is used as the thread slide means, there is an advantage that it is not necessary to add a separate thread slide means for thread hooking. Further, in this embodiment, the arm member 38 is configured to be short so that the separator 18 mainly has a function as a thread applying means. With this configuration, even when the installation intervals of the machine bases are reduced when a plurality of machine bases are arranged side by side, the thread hooking member 40 at the tip of the arm member 38 does not hinder the reduction. There are advantages.

In each of the above embodiments, the slide thread guide 21 of the thread switching means 20 is used as the thread slide means. However, the slide thread guide 21 is used only at the time of thread transfer. The slide means may be provided on, for example, an arm member or the like.

The yarn guide device 5 and the yarn switching device 20
An operation mode based on the basic configuration described above will be briefly described with reference to FIG. 6, the full bobbin FB finishing the winding is in the standby position P _2, the empty bobbin EB is in the winding position P _1, the yarn empty bobbin EB of the full bobbin FB
It shows the situation of thread transfer to.

[0038] In full initial stage of bobbin FB is brought to the standby position P _2, the yarn Y is in a state which is returned to the central position of the bobbin axis. In this state, the yarn moving guide 51 of the yarn guide device 5 is moved to the solid line position, and the upstream side of the yarn Y is moved to the left position in FIG.
(The position matching the slit 17 in B).

Next, the slide yarn guide 21 of the yarn switching device 20 is moved to the solid line position, and the downstream side of the yarn Y is moved to the left position (position matching the slit 17 in the empty bobbin EB) in FIG. Let it. In this case, the yarn Y on the full bobbin FB side is
Are positioned without dropping off from the full bobbin FB by the fixed thread guide 22.

The yarn guide device 5 and the yarn switching device 20
When the yarn Y is guided to the state described above, the yarn Y
Enters the slit 17 of the empty bobbin EB at the winding position P ₁ and is captured by the slit 17. In this state, when the empty bobbin EB rotates for winding the yarn, the yarn Y
Is cut downstream.

[0041] Thereafter, the yarn shift guide 51 in the yarn guide device 5, the slide yarn guide 21 in the yarn switching device 20 is then retracted, relative to the empty bobbin EB at the winding position P _1, the traverse device 4 The yarn Y is wound up. At the stage where the bobbin at the winding position P ₁ becomes the full bobbin FB, the turret plate 2 is rotated 180 degrees to move the full bobbin FB at the standby position P _2, the newly set to the standby position P ₂ empty Bobbin EB is taken up at winding position P ₁
Move to and position.

[0042]

The yarn hooking device of the spinning winder according to the present invention having the above-described structure has the following functions and effects. That is, in the present invention, according to the first aspect of the present invention, the yarn guiding means and the yarn applying means which operate at the start of the continuous operation, and the yarn sliding means of the yarn switching means used at the time of the switching operation cooperate. do it,
At the start of the continuous operation, by arranging the yarn in the yarn catching groove of the empty bobbin at the winding position, the yarn slides along the bobbin toward the yarn catching groove and is caught in the yarn catching groove. Therefore, the threading success rate is improved in that the yarn is reliably captured in the yarn capturing groove. Furthermore, since the thread slide means provided in the thread switching means used for transferring the yarn from the full bobbin to the empty bobbin is used for thread hooking, it is not necessary to provide a separate thread slide means for thread hooking.

Further, according to the second aspect of the invention, since the guide means is located at a position close to the bobbin at the thread contact position, it is possible to prevent the thread from being excessively bent at the time of threading. Can be prevented.

Further, according to the third aspect of the present invention, a thread guide is provided at the tip of the separator so that the separator functions as thread applying means, and the length of the arm member provided with the thread hooking member at the tip is reduced. By doing so, even if the installation intervals of the machine bases are reduced when a plurality of machine bases are arranged side by side, there is no hindrance to the downsizing.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing a specific example of a spinning winder to which the present invention is applied.

FIG. 2 is a schematic front view showing a first embodiment of the yarn hooking device in the spinning winder according to the present invention, and also showing an operation mode of the yarn hooking device. is there.

FIGS. 3A to 3C are schematic front views showing examples of driving means applied to the first embodiment.

FIG. 4 is a schematic front view showing a second embodiment of the yarn hooking device in the spinning winder according to the present invention, and also showing an operation mode of the yarn hooking device. is there.

FIGS. 5A and 5B are schematic front views showing examples of driving means applied to the second embodiment.

FIG. 6 is a schematic front view of a main part for explaining the relationship between the yarn guide device and the automatic yarn switching device and their operation modes.

FIG. 7 is a schematic external perspective view showing the entirety of the spinning winder according to the first embodiment.

FIG. 8 is a schematic side view of the spinning winder according to the first embodiment.

FIG. 9 is a schematic side sectional view showing a configuration example of a conventional spinning winder.

[Explanation of symbols]

2 turret plate 3 touch roller 4 traverse device 5 yarn guide device P ₁ winding position P ₂ standby position EB empty bobbin FB full bobbin Y yarns 11 and 12 two bobbin holders 17 bobbins of the slit 18 separator 20 automatic yarn switching device (yarn Slide means) 21 Slide thread guide 22 Fixed thread guide 27 Thread hooking means 28 Thread hitting means (arm member) 30 Thread guide means (Thread hooking member) _PA1 , _PB1 retreat position _PA2 , _PB2 Threading position _PA3 , P _B3 catch position

Claims (3)

(57) [Claims] 1. A continuously supplied yarn is traversed by a traverse device, and a contact roller is rotated in contact with a bobbin to wind the yarn around the bobbin.
A turret that supports two bobbin holders for mounting bobbins is provided.
A spinning winding device having a switching operation for alternately switching a bobbin of a bobbin holder between a winding position and a standby position, and a yarn switching means for passing a traveling yarn reaching a full bobbin to an empty bobbin with the switching operation. A yarn hooking device for hooking a yarn to an empty bobbin at a winding position at the start of a continuous operation in the machine, wherein a retracting position, a yarn engaging position for engaging the yarn, and a yarn A thread hooking member serving as a thread guide means that can be stopped at a thread contacting position to be brought into contact with the thread, a thread catching means for bringing a thread engaged with the threading member at the thread contacting position into contact with a bobbin, And a yarn sliding means for sliding the yarn in contact with the bobbin along the bobbin toward the yarn catching groove, the yarn guide means being operated at the start of a continuous operation, and The abutting means and the yarn sliding means in the yarn switching means used at the time of the switching operation cooperate with each other so that the yarn is hooked on the yarn catching groove of the empty bobbin at the winding position at the start of the continuous operation. A yarn hooking device in a yarn winding machine. 2. The arm member according to claim 2, wherein said thread applying means comprises an arm member, said thread engaging member is provided at a tip of said arm member, and said arm member is located at a position close to a bobbin at said thread applying position. The yarn hooking device according to claim 1, wherein the length is set. 3. The yarn winding machine according to claim 1, further comprising a separator for separating between a full bobbin and an empty bobbin during yarn switching, wherein a yarn guide is provided at a leading end of the separator to remove the separator. 2. The yarn hooking device according to claim 1, wherein the length of the arm member provided with the yarn hooking member at the distal end is made shorter by functioning as the yarn hooking means. 3.