JPS5971435A - Method for ending yarn in open end fine spinning machine - Google Patents

Abstract

PURPOSE:To prevent the reduction in percentage of success in yarn ending even if the yarn count is changed, by adjusting the feed time of a sliver with a timer capable of adjusting the set time before or after the starting period of inserting a broken yarn end into a taking out pipe as a standard. CONSTITUTION:The feed timing of a sliver is adjusted with a timer capable of adjusting the set time before or after the starting period of inserting a broken yarn end unwound from a package (P) into a taking out pipe 3 as a standard. If the yarn count is changed, the time of reaching the broken yarn end at the fiber bundling surface in a spinning rotor 2 and reaching the opened fibers at the bundling surface can be adjusted easily without changing the reverse rotating speed of a reversibly rotatable roll 17.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a splicing method for A-gin end spinning machine.

Generally, in an A-punni spinning machine, the yarn spun by the spinning unit 1 is guided between a draw-off roller and a presser roller, and is wound around a bobbin while roughly traversing to form a package. It is supposed to be done. If the yarn is cut for some reason during d3 during this spinning operation, the splicing machine stops in front of the spinning spindle where the yarn broke and automatically splices the yarn.
In the conventional yarn splicing method, the repackage is reversely reversed by a forward/reverse roller for back-up drive installed on the yarn splicing machine side, and the cut yarn ends are passed through the draw-out pipe of the spinning unit 1- to the fiber convergence surface in the spinning rotor. When the yarn end is spliced to the fibers on the fiber convergence surface, the package is rotated in the normal direction to pull up the yarn, and in synchronization with the start of reverse rotation of the forward and reverse rotation rollers, the sliver is supplied to the spinning units 1 to 1. The feed roller is operated to feed fiber into the spinning rotor. However, in this yarn splicing method, the start of reverse rotation of the forward/reverse rotation roller and the start of feeding the sliver to the feed roller are performed at the same time. At the timing when the fibers reach the spinning rotor, the resliper is fed into the min roller, and the opened fibers reach the spinning rotor's fiber assembly M2 bundle surface. When adjusting, the reversal speed of the forward and reverse rollers is changed, and the speed at which the yarn is inserted into the draw-out tube changes depending on the yarn count.
There was a defect in that the operator speed was inappropriate, causing mistakes in inserting the yarn into the draw-out tube and poor progress of the yarn in the draw-out tube, reducing the success rate of yarn splicing.

The present invention (J) has been made in order to eliminate the defects existing in the above-mentioned prior art, and its purpose is based on the timing at which the yarn starts to be inserted into the draw-out tube due to the start of reversal of the forward/reverse roller for the variable-large drive. By changing and adjusting the set time before and after that and starting the feeding of the sliver by the foot roshe, the thread count can be changed by adjusting the setting time and starting the feeding of the sliver by the foot roshe. Without changing the speed, the yarn splicing success rate can be easily adjusted between the time when the cut yarn ends reach the fiber convergence surface in the spinning rotor and the 11.1 period when the opened fibers reach the convergence surface. The object of the present invention is to provide a yarn splicing method for an open one-hand spinning machine that can improve the quality of yarn splicing.

Hereinafter, the yarn splicing device used in the yarn splicing method of the present invention will be described with reference to FIGS. and a spinning rotor 1-0 having a fiber opening roller 5,
Draw ΔF 1 equipped with a thread nozzle 7 and a presser roller 8.
- a traversing drum 10 as a winding drum for forming the package P. this drum i
o Form a package P in the shape of a cone or the like on the bobbin B while traversing the 4J thread from side to side. The bobbin B is supported by a support arm 11 that swings up and down, and the support arm 11 is moved by a push-up mechanism (not shown) when the thread breaks.
Regardless of the winding diameter of the reviver P, the package P is pushed up and held at a constant interval between the traversing drums 10 and 10. Furthermore, the A-pun end spinning machine 1 has upper and lower yarn splicing machine kites 12a extending in the longitudinal direction of the machine frame.
, 12b.

The yarn splicing machine 13 is installed at the end of the
, the upper thread splicing machine guide 12ah++ is suspended, and the roller 15 installed at the end of the lower thread splicing machine guide 12ah++ is suspended.
1) At the beginning of the yarn splicing process, stop at the 6FJ surface of the thread cutting weight after one thread of travel.

The yarn splicing machine 13 has means for forwarding and reversing the package P lifted from the traversing drum 1o, and is supported at the tip of a lever 1G that can be swung by a pneumatic cylinder (not shown).
A forward/reverse roller 17 is provided which rotates the package P by contacting the package 1-).

This forward/reverse rotation []-ra 17 is caused by the rotation of a motor 19 which is fixed to the lever 1G via a bracket 1-18 as shown in FIG. [1120] As shown in FIG. 3, a disk-shaped pulse generating plate 21 having a large number of protrusions 21a formed at equal intervals on the outer periphery is mounted on the rotating shaft 2o, and the A -C detector 22 is provided corresponding to the protrusion 21a, and the detector 22 detects the number of passages of the protrusion 21a of the pulse photogenerating plate 21, which is proportional to the number of rotations of the forward/reverse roller 17.
This is the rotation pulse signal 81 of the roller 17.
I'm in the middle of the day.

The yarn feeding roller 1 to the roll means 23 are a pair of yarn gripping rollers 2/4, a pin 25 at the tip, and a swingable lever 2 that is equipped with an elongated yarn guide section and attached to a pneumatic cylinder (not shown) or the like.
6, and a blade 2 that prevents the thread from coming into contact with the traversing drum 1o.
Contains 7/V. The swingable lever 2G moves from the package 1 to a second thread guide means 37, which will be described later.
It grasps the thread extending to the traction nozzle 46 and moves it between the pair of rollers 24.

As shown in FIG. 4, the pair of thread gripping rollers 24 are
Drive roller 2 connected to rotation of drive Tanabata 28 @29
4. A, a pressure roller 24, 11 rotatably supported by a 1-shaped member 31 rotatably supported by the bin 30, and the like. The L-shaped member 31 is a compression spring 3
2, the pressure roller 24b is pressed against the drive roller 24a), and the electromagnetic solenoid 33 is applied to the pressure roller 24b against the pressure force of the compression spring 32.
Ib can be swung in the direction away from the drive [1-ra 24a]. The aforementioned pulse generating plate 21 and detector 22 are mounted on the rotary shaft 29 of the drive L-28 and the case of the t-tater 28. ;'s pulse IP, raw board 3
/'I and the detector 35 are each installed (pulled), and the detector 35 is driven by a pulse generator proportional to the rotational speed of the 4&3/I protrusion 3'1. The number of passages of a is detected and this is output as the rotation pulse Shintan S2 of [=1-ra2/1.a.

The above-mentioned [1-Ra 24 is mounted on a single-acting bracket 1~ (not shown) that is moved by a pneumatic cylinder, and is located at the position shown by the solid line in FIG. It is movable by the action of the pneumatic cylinder between the position shown by the chain line (the position shown by the chain line) and the position shown by the chain line (the yarn path position during normal operation).

A thread cutting means 36 consisting of a known type cutter such as an iron type or a push-cut type is provided below the loan 2/1.

As shown in FIG. 1, the yarn splicing machine 13 includes a yarn guide means 37 for sucking and gripping the yarn from the pan gauge P and guiding it directly below the yarn cutting means 3G.

This thread guide means 37 is connected to an air suction source 38 and connected to a pneumatic cylinder (not shown), a first suction pipe 39 that can swing toward the repackage 1], and a first suction pipe 39 that is connected to a suction pipe 38 and is connected to a pneumatic cylinder (not shown) through a ventilation filter 40. There is an eleventh suction nozzle 41 which is connected to the package P and which suctions and holds the yarn end in close proximity to the package P. A first opening/closing valve 42 is interposed in the middle of the first suction pipe 39.The tip of the first suction nozzle 41 is made wide to correspond to the width of the package P, as shown in FIG. It is formed.

Also, a window 4 is provided on the bottom surface of this 14th node 41.
1 a is heard, and the window 41a is
1b opens to the tip of the nostle 41.

Further, on the lower surface of the nozzle/11, a lid/43 for opening and closing the window 41a is rotatably supported by a support shaft/1.4. This Mt/43 is opened when the first liquid nozzle 41 is in the standby position shown by the solid line in Fig. 1, and closed when it is in the operating position shown by the chain line in Fig. 1. It is controlled by a mechanism (not shown).

Further, the thread guide means 37 is rotatably supported in the vertical direction with respect to the linear-shaped second suction pipe 45 connected and fixed to the suction source 38 and the distal end of the suction pipe 45. A single-shaped second suction nozzle that enters into the nozzle 7!11 through the window 711a of the first suction nozzle 41 (suction grips the yarn end and moves it directly below the yarn cutting means 3G). /46 etc. A second on-off valve 47 is interposed in the middle of the second suction pipe 45.

FIG. 6 shows the main components of the control circuit for the yarn splicing operation installed on the yarn splicing 1 and 13 side, which includes a read-only memory M1 that stores the program for the yarn splicing operation, and a read dryer 1 that can be read and taken out. ~Meshari M2, medium heat arithmetic processing unit CPU
It also includes a timer setting device/I8, four pulse setting devices, the above-mentioned [-ta 19.28, detectors 22, 35, and electromagnetic solenoid 1, which are the constituent elements of the present invention for setting each timing of the yarn splicing operation. - 33, etc., and an interface circuit 50 for communicating with the processing unit CPU. Also, interf 1
- An electromagnetic clutch 51 connects and disconnects power from the spinner circuit 50 to the feed roller 4 of the spinning unit 1-6.
(as shown in FIG. 6).

Next, a yarn splicing method using the yarn splicing machine 13 constructed as described above will be explained with reference to FIGS. 7(a'') to (k) and FIG. 8.

As shown in FIG. 7(a), the sliver sent to the combing mill 5 by the feeder 4 of the spinning unit 6 is opened by the combing mill 5, and then sent to the spinning rotor 2. The thread Y is drawn out from the rear draw-out tube 3. This yarn Y is guided between the presser roller 8 and the draw overflow 99 via the yarn guide 7, passes through the traversing drum 10, and is wound onto the bobbin B to form the package P. In addition,! ′! In FIGS. 7(a) to 1(), the "C dry drawer 4" and "mining roller 5" have a planar shape to make it easier to understand.

If, for some reason, yarn J is cut at point X under normal spinning conditions, it is detected by a yarn breakage detector (not shown), and the yarn is transmitted to machine 13, As shown in Figure 7 (1)), it is stopped in front of the thread cutting weight.

When the yarn breakage signal is inputted to the package P push mechanism (not shown) of the spinning machine, the package 1] is changed to the shape shown in FIG.
1)) As shown by the solid line C, the sea urchin is lifted to a predetermined position above the traversing drum 10, and the electromagnetic ramp-5
1 is cut 11t, and the rotation of the feed roller 4 is stopped. In parallel with this, the lever 16 of the yarn splicing machine 13 is moved as shown in Fig. 7 (
The package P is swung in a direction tJ indicated by an arrow in b), and the forward/reverse rotation roller 17 at the tip thereof is pressed against the paralarge [], and the package P is reversely rotated by the roller 17 in a direction Jζ. Next C1 first
The suction tube 39 and the first suction nozzle 41 are swung toward the puncture side, and the tip of the nozzle 41 is positioned near the package () to suction and hold the end of the -C yarn.

[1-When the package P is reversed by the roller 17 and the thread is rewound to a predetermined length into the first suction nozzle 41,
The forward/reverse roller 17 is rotated in the normal direction as shown in FIG. 7(C), and a portion of the rewound thread is wound up into the package F]. At this point, the swallowed yarn is located at the small diameter portion 41C of the base end of the first comb nozzle 41 (see Fig. 5), so it is placed in the predetermined position of the package P corresponding to the small diameter portion 4.1c. It is rolled up to the position (the middle heat position).

When the yarn winding operation described above is completed, the first suction pipe 39 and the first suction nozzle 41 move as shown in FIG. 7(d).
), the lid 43 is returned to the standby position as shown in FIG.
will be released. Thereafter, the second leak nozzle 46 is rotated upward as shown in FIG. 7(d), and its tip enters into the first leak nozzle 41. The valve 42 is closed, the suction action of the first leakage nozzle 41 is stopped, and the thread cut is suctioned by the second leakage nozzle 46. Further, by swinging the second cutting nozzle 46 downward, the yarn path from one package can be extended to the maximum force C of the yarn cutting means 36, as shown in FIG. 7(e). In addition, package P Garaya 1))
The thread Y up to the cutting means 3G is kept in a portion so as not to come into contact with the traversing drum 10 by the guide 27.

Next, turn the lever 26 in the opposite direction (not shown in FIG. 7(e)).
;7 Guide and hold the yarn between LJ-924 on the y1 rotating force surface U, and in this state cut the yarn with the yarn cutting means 3G to make the length of the yarn unwound from the package P a predetermined yarn length. do. Note that after cutting the thread, the second on-off valve/17 is closed and the suction action of the nozzle 46 is stopped.

After rotating the lever 26 clockwise to the standby position as shown in FIG. 7(f), the roller 24 is moved to the yarn path position during normal operation of the spin-end spinning machine, as shown by the solid line. Then, the cut yarn end is positioned above the outlet of the drawing pipe 3 of the spinning unit 6.

Next, as shown in FIG. 7(g), the forward/reverse roller 17 and the roller 2=1 (displaced by 90 degrees for ease of understanding) were reversed again, and the package P was unwound. When the cut yarn end of the yarn is inserted into the pull-out tube 3 of the spinning unit 6, the yarn end moves toward the spinning rotor 2 inside the drawer @S due to the internal negative pressure. (-) 24, pulse signals S1 and 82 proportional to the number of rotations of the rollers 17 and 24 are outputted from the detector 22°35 shown in FIG.
, $2 is the central processing unit]! l! The reverse rotation speed set value E is preset by the pulse setting device 49 by the device and CPU.
1. Each is compared with E2. Then, when the yarn end is moved to a predetermined position in the draw-out tube 3, the pulse signal S2 becomes the same as the set value E2, and the interface circuit 50
A re-reverse rotation stop signal S4 is outputted to the motor 28 to stop the motor 28, and the drive row 524a is stopped, and an operation signal S5 is outputted to the electromagnetic solenoid 33 to move the pair of rollers 24a and 24b to the seventh position. 11)
J is released to sea urchins.

Thereafter, the forward/reverse rotation roller 17 continues to reverse rotation, and the yarn end is moved toward the fiber converging surface of the spinning rotor 2, and when the pulse signal S1 reaches the set value [1], the interface circuit 50 sends the motor 19 to stop the reverse rotation again. The signal 8S (3 is output, the roller 17 is stopped, and the yarn end is
4J & dark blue reaches the converging surface and splices to the fibers on the converging surface.

In order to splice the yarn, it is necessary to supply fibers to the convergence surface of the woven material f of the spinning rotor 2 before the yarn end reaches the convergence surface of the spinning rotor 2, as shown in Fig. 8. The setting time is changed to before and after -C based on the timing 1 when the forward/reverse roller 17 starts reversing the rotation again, and is performed by the evening, time setting device 4.8 t, i 2, which is a component of the present invention. !J Nawara,
When the yarn count is thick, the setting device 48 sets the feed roller 4f1 to 0 along with the sliver as shown by the solid line in FIG. The operation signal S3 is output from the interface circuit 50 to the electromagnetic clutch 51, and the knob is rotated accordingly. However, when the yarn count is thin, the operation timing of the feed roller 4 can be changed as shown by the chain line in the same figure.
l,! It is necessary to set IvJT3 earlier than the +' time T1, and the setting of this time T3 is also performed by the tine setter 48.

At the same time as the forward and reverse rotation of the forward and reverse rollers 17 is stopped, a forward rotation signal S7 is sent from the interface circuit 50 to the motor 19.
is output, the package P is rotated forward by the roller 17 as shown in FIG. 7, and the spliced yarn Y is pulled out from the spinning rotor 2. At this time, a pulse signal 8 is sent from the detector 22 at the same time as the normal rotation of the forward/reverse rotation roller 17 starts.
S1 is output, and when the pulse signal reaches the forward rotation speed setting value E3 preset by the four setting devices, the interface circuit 50 causes the motor 19 to stop forward rotation (No. 8 S8 is output and the roller 17 is stopped. , after Figure 7 (j
), when the forward/reverse roller 17 is separated from one package, the second gear mechanism is stopped and the package P is traversed and transferred to the ram 10. Then turn package 1] forward and transfer the spliced yarn to package P.
1. : Wind up. Roughly, as shown in FIG. 7(k), the thread from the subiningo knit 6 is threaded from the guide 7 to the thread thread 9 by hand or thread threader 1 (not shown). , [] 21-ra 2 is moved to the standby position.As a result, the A-Punj-do spinning frame is placed in a normal operating state.

In this way, the yarn splicing operation is performed, and in the embodiment of the present invention, the re-inversion start 11 of the forward/reverse rotation roller 17 that moves the cut yarn end 1 of the package PhXl into the pull-out pipe 3 is performed.
．． The timing for feeding the sliver to the refeed roller 4 is set in the timer setter 48, which can change and adjust the set time before and after Y period] -1. The feeding timing of the sliver can be easily adjusted without changing the speed at which the straw yarn is fed into the drawing tube. This has the effect of eliminating poor progression of yarn ends and improving the yarn splicing success rate.

However, the present invention can also be embodied in the following embodiments.

In the above embodiment, as shown in FIGS. 7(0) and 7(h). JJ, when feeding the sea urchin yarn end into the draw-out tube 3, the yarn gripping roller 2
4 is reversed and the yarn end is moved to a predetermined position within the draw-out tube.
The collar 24 was opened and the package was then reversed to send the yarn end to the fiber convergence surface of the spinning 1 coater 2. While the gripping roller 24 remains stopped, the pack jig 1 is reversed a certain number of times by the forward/reverse roller 17.
The thread tIgi is the length necessary for the spinning rotor machine I to reach the converging surface (J is unwound, and as shown in FIG. 9(b), the reversal of the thread 17 is stopped and the The yarn gripping roller 24 is opened, and the yarn held between the package P and the rollers 24 is suctioned by the negative pressure of the spinning rotor, and the yarn end is covered so as to be moved to the SaW convergence surface.

As described in detail above, the present invention adjusts the timing of feeding the sliver using a timer that can be set before and after the start of insertion of the cut yarn end unwound from the package into the draw-out tube. Therefore, even if the spinning hand is changed, the timing to start feeding the sliver can be adjusted using the timer, eliminating the need to change the speed at which the yarn is fed into the drawing tube. Prevents insertion errors and improves thread splicing success rate.
It has the same effect as J-J.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the yarn splicing device used in the yarn splicing method of the present invention.
U if431, front view, Figure 3 shows forward and reverse l-]-
Fig. 4 is a front view of the device for detecting the rotation speed of the thread grip f'
j ff] An enlarged plan view of the n-ra, FIG. 5 is an enlarged plan view of the 19th-action nozzle, and FIG. 6 is an electric control circuit diagram.
To Figure 7(a), -(++) indicates the yarn splicing operation, and is a side view of the screw, Figure 8 is an explanatory diagram showing the timing of the yarn splicing operation, and Figures 9(a) and (+1) indicate the yarn splicing operation. FIG. 3 is a side view showing another view of the yarn splicing operation. Forward/reverse rotation roller 17, timer setter 48, re-reverse rotation stop signal S6, timing Tl, T2. 3゜Special M' (Applicant: Toyota Ji 8 Ori 1 Iki Seisakusho Co., Ltd. Agent, Patent Attorney)
Figure 7 (d) Figure 7 (e) Figure 7 (f) Figure 7 (i)

Claims (1)

[Claims] 1. When splicing the yarn, the package is reversed by the forward and reverse rollers to rewind the yarn, the thread is cut to a predetermined length, and the end of the yarn is moved to a predetermined position above the exit of the drawing tube of the spinning unit. The thread is inserted into the draw-out pipe by reversing the forward and reverse rotation rollers, and at the same time, when a timer that can change and adjust the set time before and after A is activated, the timer is activated. A yarn for an oven-end spinning machine characterized by starting supply of sliver to the spinning machine, feeding the yarn end in the drawing-out tube to a fiber convergence surface in a spinning rotor for splicing, and further pulling out the yarn from a spinning 1 coater. Succession method.