JPS59204925A - Ending device for bind-spinning - Google Patents

Abstract

PURPOSE:To facilitate the ending operation in bind-spinning, by using a bind- spinning frame furnished with a mechanism for contacting and separating a pair of rollers of the front roller of the drafting means, and a mechanism for contacting and separating the means for sucking the end of the yarn at the inlet of the air false-twisting nozzle. CONSTITUTION:The objective bind-spinning frame has an air false-twisting nozzle 4 just after the drafting means 1-3. In the above frame, the top roller 3' is attached rotatably to one end of the arm 32 to enable the connection and separation of the top roller 3' of the last front rollers 3, 3' of the drafting means 1-3 and the bottom roller 3, and the other end of the arm 32 is attached swivellably to the frame. Furthermore, an inner tube 14 and the jacket tube 13 are connected slidably between the air suction tube 41 and the yarn end suction tube 15 to enable the connection and separation of the yarn end suction tube 15 and the inlet 4a of the air false-twisting nozzle 4, and the swivelling arm 18 is connected to the bracket 16 attached to the end of the inner tube 14. The arm 32 is made swivellable by the protrusion attached to the bracket 16. The air false- twisting nozzle is preferably made tiltable.

Description

[Detailed description of the invention] Technical field The present invention relates to a yarn splicing device for a binding and spinning device.

More specifically, using an air false twisting nozzle, the fibers with free ends on the surface are finely attached to the core fiber bundle by applying false twisting using a swirling air flow to the fibers that maintain f11100 continuity. The present invention relates to a yarn splicing device that entangles and joins the package-side yarn end and the tip end of a fiber bundle when the yarn breaks during binding spinning in which a binding yarn is made into a binding yarn and wound as a package.

In the conventional bundling spinning 8TQ device, an air false twisting nozzle is provided near the bottom of the 70 roller located at the forefront of the draft mechanism consisting of multiple pairs of draft rollers, and the air false twisting nozzle is installed along with the front rollers. The untwisted ribbon-like fiber bundle (7 leases) that is produced is introduced into an FC nozzle, where it is heated by a swirling flow and made into a neck yarn.
0? It has recently attracted attention because it can achieve high spinning speeds of M/min or higher. However, because of the yarn structure in which the upper yarn end is firmly restrained by the surface fibers, and the spinning speed is high, it is possible to simply overlap the yarn end and 7 leases and splice the grooves, as in a conventional ring spinning machine. It is almost impossible to do this, and it is necessary to first feed the yarn end back into the preliminary combustion nozzle, and then trace the yarn end back into the draft mechanism so that it overlaps sufficiently with the fleece end within the draft area. ing.

・Inserting the yarn ends into the air false twisting nozzle and introducing them into the draft area has conventionally been accomplished by using a top roller push-up mechanism and yarn end suction in a yarn splicing machine that circulates in front of each unit of the binding and spinning device. Is this the case on the front of the unit where the thread was cut after installing the tube? The front top roller is actuated to separate from the bottom roller, the yarn end suction tube is engaged with the inlet of the air false twisting nozzle through the gap created by this, and the yarn is conveyed to the vicinity of the outlet of the air false twisting nozzle by some means. This is done by feeding the yarn end back through the yarn passage of the nine-fold false twisting nozzle and suctioning and holding it in the yarn end suction tube. In such conventional technology, it is necessary to accurately align each mechanism of the yarn splicing machine and insert it from the gap into the draft area of the binding and spinning device unit in which many parts are arranged in a narrow space. Coupled with the complexity of the mechanism, the work speed inevitably became slower.

Object and Structure of the Invention The present invention has been made to solve the problem of slanting. It is an object of the present invention to provide a yarn end insertion mechanism for a yarn splicing device that can be applied to pipes.

That is, the present invention provides a binding spinning device in which an air preliminary combustion nozzle is provided on the downstream side of a front roller of a draft mechanism, and a roller separation mechanism that separates the top roller of the front roller from the bottom roller; A yarn end suction mechanism that can freely connect and connect the inlet of the nozzle is attached to each spinning unit, and when the yarn breaks, the roller separating mechanism is activated to separate the top roller and bottom roller, and the yarn end is removed from the gap between the two. This yarn splicing device for binding and spinning is characterized in that a yarn end suction mechanism is engaged with an inlet of a hollow false twisting nozzle to suck yarn ends of broken yarn.

Example The present invention will be questioned in more detail based on the drawings.

FIG. 1 and FIG. 2 show a first embodiment of the device according to the invention.

The draft mechanism of the binding spinning unit is the pack roller 1,
1', middle apron 2, 2', front row 5
3, consists of '3', and the rough front roller 3, 3'
(7) An air false twisting nozzle 4 is provided on the downstream side.

The fiber bundle F is supplied from below in the figure, and after being stretched to a predetermined magnification by drafting, the fiber bundle F is drawn into a ribbon shape, and is inserted into the yarn passage 4c from the inlet 4a of the air false twisting nozzle 4 to generate a swirling flow. It is heated by the swirling flow generated from the blowhole 4d, is pulled out as a binding thread Y from the outlet 4b, and is wound into a package (not shown).

In the present invention, a yarn end suction mechanism 11 is provided on the machine frame 5 to be attached to the oblique binding spinning unit. The yarn end suction mechanism 11 has a curved mantle tube 13 with a connecting opening 12 facing the traveling path of the optical machine (not shown).
It is composed of an inner part W14 in which a part of the base is slidably housed in the inner part Lllll along the axial direction.

A suction nozzle 15 is fitted at the tip of the inner tube 14, and has a shape and material that allows it to engage substantially airtightly with the inlet 4a of the air false-twisting nozzle 4 during operation, as will be described later. have. The inner tube 14 is pivotally connected to one end of a lever 18 by a pin 17 rotatably supported by a bracket 16 projecting from a part of the inner tube 14, and the other end of the lever 18 is further fixed to a fixed part of the frame of the unit. It is fixed to a disk 20 which is rotatably supported by a pin 19. An arm 2 further extends from the disc 20 toward the walking path of the yarn splicing machine.
1 is provided protrudingly.

The outer tube 13 and the inner tube 14 are configured as arc-shaped curved tubes having the same radius of curvature centered on the pin 19. When a downward force is applied to the tip of the arm 21, the disk 20,
Lever 18. Via the pin 17, the inner tube 14 can be slid counterclockwise inside the outer tube 13 like a target.

A part of the front roller 6' is an arm 3 whose one end is rotatably supported by a pin 31 at a stationary part of the frame.
The bracket 16 has its rotating shaft pivotally connected to the other end of the arm 32, and one side of the arm 32 forms a cam surface 16m.
The top roller contacts and engages with the upper surface of the top roller to form a top roller separation lateral groove 35. The frame structure 35 allows the front top roller 3
'ld As the inner tube 14 slides, the arm 32 and the pin 6
1 and can be separated from the bottom roller.

Further, the air false twisting nozzle 4 is arranged so that the fiber bundle leaving the nip point of the front rollers 3, 6' is immediately transferred to the inlet 4 of the air false twisting nozzle 4.
Since the core air false twisting nozzle 4 is installed very close to the front roller so as to be introduced into the solenoid 56, this may become an obstacle when the front top roller 3' mentioned above rotates. The plaque is removed by the action of
It can be rotated about a pin 34 which is pivotally connected to the seat and can be tilted away from and separated from the 70 controller 5.3'.

FIG. 1 shows the position of these parts in normal spinning conditions, in which the air false twisting nozzle 4 is located immediately downstream of the front rollers 3, 3' which rotate in contact with each other, and the inner tube The fourteen suction nozzles 15 are retracted outside the draft area.

When thread breakage occurs, back rollers 1 and 1 of the draft mechanism
' is stopped rotating, and as a result, the fil is cut off between the back roller 1.1' and the middle apron 2. tilts and separates from the front roller 6.3'.On the other hand, the yarn splicing machine reaches the curved surface of the unit and stops, and the suction air supply duct 4 built into the yarn splicing machine
1fr, and is airtightly engaged with the coupling opening 12 of the yarn end suction mechanism 11 of the machine frame 5. At the same time, when the tip of the arm 21 is pushed down by the operating lever 42, which is also provided in the yarn splicing machine, the inner tube 14 is connected to the outer tube 13.
Move the inner part to the right side of the diagram. At the same time, the cam surface i6a of the bracket 16 moves along the arm 32 and rotates about the pin 31, thereby separating the front top roller 5' and the bottom roller 6. Inner pa α1
The suction nozzle 15 fitted on the tip of
It passes between both rollers 3, 5' and engages in an air-tight manner with the inlet 4a of the air false-twisting nozzle 4 in the tilted position. That is, the tip of the nozzle 15 is made of a flexible material. Figure 2 shows the condition of B.

On the other hand, the broken yarn end caught in the first opening of the package is captured by a known appropriate means. a is carried at the outlet 4b-j of the false twisting nozzle 4. At this point, when the 111% suction air source and the duct 41 are connected, the suction airflow flows through the mantle tube 13.
．． Inner tube 14. The suction nozzle 15 acts on the yarn passage 4C of the temporary air exchange nozzle, and the yarn end is returned through the passage and suctioned and held by the inner tube 14.

Next, when the operating lever 42 releases the pressure on the arm 21 and returns to its original position at a slight distance (the position indicated by the button repair in Fig. 1) and stops, the inner tube 14 moves the outer tube 1 while holding the yarn end.
3, and the yarn end ft70 is inserted between the controllers 3 and 3'. At the same time, the propeller 3' approaches the bottom roller 3 for 70 seconds, but does not come into contact with it. Then the solenoid
53 is de-energized and the air temporary combustion nozzle 4 returns to its original position.

In this state, the back roller 1.1' is restarted, and when the fiber bundle reaches the action area of the front roller, the operating lever 4
When the suppression of the arm 21 by the arm 21 is completely released, the 70 controller 3.3' comes into pressure contact with the fiber bundle and the yarn end, and the fiber bundle and the yarn end are superimposed and fed into the air false twisting nozzle 4. At this point, a swirling flow is supplied into the air false twisting nozzle 4, and the two are joined to complete the yarn splicing.

Sajo's theory is that IQ is a tree, so when returning, press the operating lever 42 -a.
At the halfway point, start the back rollers 1 and 1',
I tried to time the overlap of the fiber bundle and the yarn end, but by disabling the clutch means on each roller of the draft tower, I
By stopping the rotation of the front roller, the operating lever 42 can be returned to its original position at once, and the yarn end can be held between the 70 rollers 3 and 3'. In this case, after the back rollers 1, 1' are re-rotted, the clutch means is actuated at a predetermined timing to cause the front rollers 1, 1 to hit again, thereby achieving the same effect as in the previous example. effect can be obtained.

A second embodiment of the invention is shown in FIG.

In this example, the top roller separation mechanism 65 is not directly engaged with the yarn end suction mechanism 11, but the movement of the bender is performed by an air cylinder 51 provided on the machine frame 5. Further, the tilting of the air temporary combustion nozzle 4 is also performed by another air cylinder 52. Among the other mechanisms, 1 is substantially the same as the first embodiment, and 2I\
? The same symbols are used for I. When the tip of the arm 21 is pushed down by the operating lever 42 provided in the yarn splicing machine, the yarn end suction mechanism 11 is activated. At the same time, the air cylinders 51 and 52fe are activated, and the front top roller 6' and the bottom roller 6 are activated. At the same time, the 9-fold false twisting nozzle 4 is tilted. This state is shown in FIG. 3 in general. Suction nozzle 15 is air 1
After engaging with the λ port 4a of the false twisting nozzle 4 and sucking and gripping the yarn end, the yarn end suction mechanism 11 transfers the yarn end to the front roller 6.3'.
At the same time, the air cylinder 52 is also reversely operated to return the air false twist nozzle 4 to the normal spinning position. Next, the back roller 1.11 is restarted, and when the fiber bundle reaches the action area of the front roller, the air cylinder S1 is operated in reverse to bring it into contact with the top roller 6' and the bottom roller 3, thereby separating the yarn end and the fiber. Raikou 9: ii is superimposed. The subsequent operations are similar to those described in the first embodiment, and the yarn splicing is thereby completed.

Effects of the Invention According to the 8l-1K of the present invention, the front top roller separation mechanism and yarn end suction mechanism are installed inside each spinning unit, making it easy to connect each part such as the empty false twist nozzle and the front top roller. To securely maintain a positional relationship and eliminate the complexity of positioning and the concomitant waiting time required in the past. In addition, according to an embodiment in which the two mechanisms are interlocked so that the rollers can be separated and the yarn end can be inserted at the same time as the rice grain is removed, the mechanism can be simplified and the timing between the two and the grooves can be adjusted. There is no need to take this into account, and the yarn splicing time can be shortened and the success rate can be improved. Since the suction nozzle is airtightly engaged with the inlet of the air false-twisting nozzle, the mechanism can be simplified (?), and the complicated formula of timing j > 761? between the two machine grooves and the associated wasted time p can be completely omitted. This reduces yarn splicing time and improves success rate.

[Brief explanation of drawings]

FIG. 1 is a side view of the first embodiment of the present invention in a spinning state, and FIG. 2 is a side view of the first embodiment of the present invention in a spinning state, and FIG. Same drawing as A,
and Fig. 3 is the second part of the present invention! ! : A side view of an example of decoration. 11/... Back roller 2.2'...
...Middle apron 5, 3'...
Front roller 4...... Sudden temporary press nozzle 11...... Yarn end suction mechanism 13...... Outer tube 14... ...Inner tube 15...Suction nozzle 17, ff9, 31.34...Old...Pin 33...
・・・・・・So1/Noid 35・・・・・・Roller egg white 1) Mechanism 51452
...... Air cylinder Figure 1 Figure 2

Claims (1)

[Claims] 1. In a binding spinning device in which a 9-fold false twist nozzle is provided downstream of a 70-roller of a draft mechanism. A roller separating mechanism for separating the top roller of the front roller from the bottom roller and a yarn end suction mechanism that can be attached to and detached from the inlet of the air false twisting nozzle are attached to each spinning unit to prevent yarn breakage. Sometimes, the roller separation mechanism is operated to separate the top roller and bottom roller, and the yarn end suction 4a is engaged with the entrance of the false twisting nozzle to suction the broken yarn ends from the gap between them. Characteristic yarn splicing device for binding and spinning. 2. Furthermore, the air false twisting nozzle is configured so that it can take either a normal spinning position close to the front roller or a retracted position separated from the front roller, and the air false twisting nozzle is The yarn splicing device for binding and spinning as set forth in claim 1 is characterized in that fr is displaced to the retracted position. S A feature in which the movement of at least one of the roller separating mechanism or the yarn end suction mechanism is provided by a yarn splicing machine.
A device according to item 1 or 2 of the scope of claim. 4. The roller separation mechanism described in @ includes an arm that pivotally supports the front roller, while the yarn end suction mechanism has a mantle tube having a suction hole opening in the machine stand frame of the spinning unit, and a suction nozzle at the tip. An inner tube slidably housed in the outer tube, a means for sliding the inner tube, and a part of the outer circumference of the inner tube constitute a cam, and the cam engages with the arm. 3. The device according to claim 1, wherein the front rollers are moved apart as the inner tube slides.