JPS6094631A - Ending device - Google Patents

Abstract

PURPOSE:To reduce an amount of waste yarn and to prevent swelling of thickness of ending part, by setting suction pipes for supporting yarn end at the front and rear of an ending member, respectively, providing a guide device with a gripper to introduce yarn end to either of the suction pipes. CONSTITUTION:The suction pipes 45 and 46 are set at the front and rear of the ending member 37 of the yarn cutting and ending part 3, and the guide device 29 with a gripper to introduce yarn end to either of the suction pipes is provided. One of the cut yarn end is sucked in one of the suction pipes, and the other is intoduced and sucked in the other suction pipe by the gripper. This ending device is suitable for preparation of fancy yarn.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a yarn splicing device, and more particularly to a yarn splicing device suitable for manufacturing a single fancy yarn by continuously splicing a wide variety of yarns (for example, of different colors). .

As a system for creating frost patterns, random color patterns, etc. in textiles, knitting, etc., for example, when using a loom, a) prepare multiple types of fed yarns with different colors for the weft, and create random or random color patterns. There are systems that select regular G-weft yarns and perform a weft insertion operation, and systems that create random patterns by print dyeing or the like after weaving a fabric with undyed yarn.

However, in the case of (a) O, it is necessary to perform the weft selection operation every cycle or multiple cycles of the weft insertion operation, which may be an obstacle to increasing the speed of the loom, and may be difficult to achieve in a loom with a large number of reasons. It is impossible to vary the color at small pitches smaller than the line width dimension. In other words, the relationship is 2m
In this case, 2 m of weft threads are of the same color, and it is impossible to change the weft threads, for example, two colors every 50 cIn, in the middle of the thread.

Furthermore, since the above system uses print dyeing, only low-quality fabrics can be obtained, and it is extremely troublesome and time-consuming to express complex and random color tones.

From this point of view, yarn feeding packages (two windings of yarn are unwound, dyed in different colors at small intervals, e.g. tens (1) to several meters apart, and then wound again for use in looms and knitting). If used as a yarn feeder for a machine, the above problems would be solved, but dyeing such a single yarn into partial shapes is extremely complicated and requires a large-scale dyeing device.

Therefore, textiles with frost patterns and random color patterns,
A conceivable way to create a knitted fabric is to sequentially splice yarns of various colors to obtain a single fancy yarn that is uneven in the length direction, and then weave and knit it. ■The thickness of the seam must be almost the same as that of a single thread. ■To obtain fancy yarn with more beautiful spots, splic the threads frequently (for example, 10 times).
1) The color thread must be changed every time. In particular, if the requirement (2) is not met and waste yarn of several tens of cIn, which is longer than the yarn length actually spliced, is generated each time the yarn is spliced, it cannot be used practically.

The present invention satisfies the above requirements (1) and (2) and provides a splicing device suitable for manufacturing the above-mentioned fancy yarn.

Hereinafter, an example in which the splicing device of the present invention is applied to a fancy yarn manufacturing system will be described with reference to the drawings.

Figure 1 shows the overall configuration of the fancy yarn manufacturing system, which includes a yarn feeding section (1), a yarn selection section (2), a yarn splicing section (3), a winding section (4), and the above-mentioned parts. It is composed of a control section (5) that controls the operation.

That is, in the yarn feeding section (1), for example, a plurality of types of yarn feeding packages (A) to (F) of different colors are appropriately arranged without interfering with each other. The above-mentioned yarn feeding packages (A) to (F) have already been rewound in a winder, yarn defects such as slabs have been removed, and then dyed in the dyeing process. It can be used in knitting machines, etc.

Further, the yarn selection section (2) reserves yarn ends pulled out from each yarn supply package, and selects and positions a specific yarn end to a yarn running position according to a command from the control section (5).
For example, a fan-shaped play that holds each thread end 1. (6) is rotated around the axis (7) to position one of the yarn ends (YA) to (YF) at the running position (Y).

Further, the yarn cutting/splicing section (3) disposed subsequent to the yarn selection section (2) is comprised of a yarn splicing device according to the present invention, and is arranged between the yarn supply package and the winding package (8). The yarn that has been tied and stopped is once forcibly cut, and the desired type of yarn end selected by the yarn selection section and the winding package (
8), and includes a yarn cutting device, a yarn splicing device, and a guide device for guiding the yarn end to a fixed position of the yarn splicing device, the details of which will be described later.

Furthermore, a normal winding device is applied to the winding section (4). That is, the threads are spliced onto a package (8) which is rotated by a traversing drum (10), and threads of different colors are wound at regular pitches or at random pitches.

The control device (5) that controls the selection of yarn type, winding length, etc.
) C, relay sequence, microcomputer, etc.
used.

(4) A portion of the yarn produced by such a system is transferred to a second
As shown in the figure. In other words, since one yarn (Yl) is spliced by the pneumatic splicing device, the seam is almost indistinguishable from a single yarn;
) is the red thread of package (A), the following thread part (B) is the blue thread of package (B), the thread part (C) is the yellow thread of package (C), and the thread part (D) is the package ( D)
This allows you to obtain yarn with a random color arrangement and random lengths for each section, such as the green yarn shown in the figure.

Note that the color arrangement, length, etc. can also be set irregularly or periodically.

Next, the details of each component of the system will be explained with reference to the drawings.

(B) Yarn supply unit Yarn supply packages (A) to (F) have the required number of packages inserted and supported at appropriate positions, and the yarn ends (YA) to (YF) pulled out from each package are guided by guides (11 ), the yarn passes through a tension device (12), and is gripped by the yarn end gripping section of the yarn selection device (2).

(b) Yarn selection unit The yarn selection device (2) holds the yarn end of each yarn supply package in a fixed position, and has a fan-shaped rotating play h that rotates around the − axis.
(6), a stopper device (13) for appropriately selecting and regulating the stopping position of the rotating plate (6), and the like.

Note that although the figure shows two cases in which there are six yarns to be fed, this can be changed as appropriate.

As shown in FIG.
This rotatably supported support (7) is fixed, and yarn end gripping pieces (15) are provided at equal pitches along the outer periphery of the fan-shaped plate. A spiral guide column (16) that guides and supports the end is a plate (6).
Fixed on top. -1- The entrance (18) of the guide hole drilled and formed in guide column (16) G is located on the shaft center, and even when the play I. (6) turns, the guide (11 ) and the turning center (16E) are formed so that the thread distance is constant, and the exit of the guide hole (17)
is open toward the gripping piece (15) at the end of each plate, and in the thread running position, the thread entering from the inlet (18) is opened at the outlet (18).
17) A guide column is provided so that the vehicle can move straight without bending.

The stopper device (13) for the rotating plate is composed of solenoid rods (STA) to (STE) provided at fixed pitch intervals within the rotating area of the plate (6). That is, an electromagnetic solenoid (S) fixed to the lower part of the board (14)
OA) ~ (30E) Solenoid (STA) ~ (ST
E) is provided on the substrate (14) as a retractable shoe, and the rods (STA) to (STE) are provided at equal angular intervals on a concentric circle with the rotation center of the plate. For example, in the case of FIG. When the contact piece (19) of the rotating plate (6) comes into contact with the solenoid rod (STB) and the stop position is determined, the yarn (YB) of type (B) is positioned at the fixed position for knotting and winding. Solenoid rod (STA) ~ (STE
) is determined.

(STF) is a fixed stopper. The selection of the solenoid rods (STA) to (STE) is performed randomly or periodically in response to commands from a control device, which will be described later.

(7) Note that the turning operation of the turning plate (6) is performed, for example, by a device shown in FIG. That is, the rod (2
The rotating plate (
6) forward rotation and reverse rotation are performed. (27) is a spring hooked between the base plate and the rotating plate.
6) Assists in turning counterclockwise.

Further, the thread end gripping piece (15) at the end of the plate is attached to two thin plates (15) fixed on the plate (6) as shown in FIG.
a) (15b), the thread end of the abutting part of the thin plate is relatively weak, and it is gripped with a gripping force stronger than the suction force of the suction pipe (46), which will be described later, and the thread winding width is set to an appropriate value. It applies tension to the running yarn. Also, the yarn feeding side of the gripping piece (15) is attached to the yarn guide (28).
is fixed, and as shown in the fourth figure, the yarn guide (28
) and the gripping piece (15).) The thread splicing (8), which will be described later, waits below the thread (YT) between the gripping piece (15).
) is designed to grip the machine when turning. That is, 4th.
As shown in Fig. 6, the fixed piece (31) and the movable piece (32) of the tip of the rotating arm (29) are pivoted (34), and the movable piece (32) is rotated counterclockwise in Fig. 6 by means of a leaf spring. It is biased toward the needle and grips the thread between the fixed pieces (31). 4th.
In the standby position shown in Figure 6, the roller (35) at the rear end of the movable piece (32)
) is engaged with the fixed cam plate (36), and the movable piece (32) is in the open position, and when the arm (29) rotates, the thread (y'r) engages with the fixed piece (31) in the relative form. When the roller (35) of the movable piece (32) enters between the movable pieces (32), the cam plate (
36), and the thread end is gripped by the gripper (30) by the force of the leaf spring (33). At a suction pipe (46) position, which will be described later, the gripper (30) is opened by a similar cam plate (52) and released, and the gripped yarn end is sucked into the suction pipe (46).

(c) Yarn splicing section The yarn splicing section is comprised of a yarn splicing device according to the present invention, and the yarn splicing device basically consists of a yarn splicing member (37), a yarn presser device (3
8), untwisting nozzle (39) (110), thread shifting lever (48), thread cutting device (41) (42), thread clamping device (43) (44), and a nozzle that sucks and holds the thread end on the package side. 1 suction pipe (45), a second suction pipe (46) that sucks and holds the yarn end on the yarn feeding side,
A cutter (47) cuts the yarn connected between the yarn feeding side and the package side, and a yarn splicing member (3) connects the yarn end on the yarn feeding side mentioned above.
7) Swivel arm (29) as a guide device for guiding
It consists of

There is a cylindrical splicing hole (49) in the center of the splicing member (37).
A slit f is perforated and suitable for inserting thread from the outside.
(4,9a) is formed in the tangential direction, and the slit (
A spout nozzle (491)) which opens toward the center of the splicing hole (49) is bored near the contact point of 49a).

Untwisting nozzles (40) are provided on both sides of the yarn splicing member (37) to suction and untwist the yarn end on the yarn feeding side and the yarn end on the package side, respectively.
(39) is provided, and the untwisting nozzle (/10) (39)
A thread cutting device (41) (42) is provided on the outside of the G, followed by a thread pulling lever (48) and a clamp device (43) (4, 4) on the outer side of the G. The above spout nozzle (49b) Untwisting nozzle (39) (4,0
), the operation of the thread cutting devices (41) (42), the thread shifting lever (48), the clamping device (43) ('
44) are all performed in a predetermined order by a cam mechanism (not shown).

Yarn end on the yarn feeding side ■ Swivel arm that pulls out and guides the town (29
) is rotatably supported by a frame (50), and the yarn gripper (30) at the tip grips the yarn end and rotates greatly in the direction of the arrow (51) as shown in Figure 4, and the cam plate (Figure 7) (When the rollers provided in a part of the movable piece (32) of the 528-thread yarn gripper are engaged, the movable piece opens and releases the yarn feeding side yarn end (YU) that was being gripped, The suction is drawn into the suction pipe (46).The revolving arm (29) has an abbreviated shape, and includes a shaft (53) integral with the arm, a gear (54) provided thereon, and a fan-shaped gear (5).
5) are engaged, the fan-shaped gear (55) is driven by a program cam driven by a command from the control unit, that is, a knotting command, and the arm (29) rotates to move the yarn end (YT) on the selection device side to (11). Move above the yarn splicing member (37) from the yarn feeder to the drawer,
The cam plate (52) engages with the cam plate (52) at a position rotated approximately 180 degrees. (431)) is a contact plate of the clamp device, and (56), (57), and (58) are guide plates, respectively.

Note that the package side yarn end (YD) after the yarn cutting is the first
In order to smoothly suck the yarn into the suction pipe (45), it is preferable that the pipe (45) 15190 is oriented toward one side so as to receive the yarn end from below, and the cutter (47) A pair of guides (59) at an appropriate distance of about 5 to 10 cm from the position.
60) It is preferable to provide it between. In other words, if the distance between the cutter (/17) and the pipe (45) is too short,
Since the suction length of the yarn end by the pipe (45) becomes shorter, the probability of failure in suction and capture of the yarn end increases, and the suction holding force after suction and capture becomes weaker, that is, the force that tensions the yarn becomes weaker, and the subsequent The yarn splicing operation will be poor, and if it is not long, there will be a lot of wasted yarn in the part cut by the cutter (47), which will be inconvenient. It is better.

Also, the yarn feeding side yarn end (YU) is connected to the second suction pipe (
46) In order to ensure smooth suction, it is preferable that the opening of the pipe (46) is directed upward or to the side, and for the same reason as above, the suction length of the yarn end should be adjusted so that the holding force is A position near the clamp device (43) is preferable so that the length is as short as possible without becoming too small. In this embodiment, the suction length of the yarn end (YTJ) is set to be approximately 8 CmG. Furthermore, the diameter and suction pressure are set so that the suction force by the pipe (46) is smaller than the thread gripping force of the gripping piece (15) (in this embodiment, the suction pressure is 1000 M water column/cyfl, opening diameter is approximately 8 mm) Although tension is created between the yarn feeding side yarn end and the gripping piece (15), it is designed to prevent it from being sucked into the pipe (46). . In other words, when the yarn end on the package side is spliced, the drum (10) of the winding device is stopped, or the brake shoe described later is pressed against it, so that the yarn end is not twisted in the unwinding direction. However, on the yarn feeding side, the tensor (12) and the gripping piece (1
Since the yarn is only loosely held by
46), which is inconvenient as it would be sucked into the body, and the system is designed to prevent this from occurring.

B) Control Section Next, the control section that controls the operations of each of the above devices will be explained. FIG. 10 shows a block diagram of the control device. That is, the control unit (5) controls the program controller I.
The program controller (61) is composed of a roller (61), an oscillator (62), a high-speed counter (64) that counts pulse signals from the oscillator, a counter control section (65) that controls the counting time of the counter, Furthermore, a block (66) for selecting the winding time, a block (67) for selecting the yarn type, and a yarn type selection signal are sent to the twirl selection section according to the counter set value at the stop point of the counter (64). It is composed of an output section (68) to a solenoid that positions the plate, a nonting command section (69), etc.

The output signal O from the control section selects and operates the solenoids (SOA) to (SOE) for selecting the yarn type, and the nonting circuit contact (70) operates to start nonting. In addition, solenoid (SOA) ~ (SOE)
The operation timing is determined by the program cam and switch (72) of the thread cutting device (47) that cuts the thread when winding is stopped.
G is carefully timed, and the solenoid operates after the thread has been cut and the swivel plate (6) has returned to its origin.

Note that one cycle of nonting is set by a program cam and a switch (71), and nonting ends after one cycle, that is, one revolution of the camshaft.

In addition, a switch (73) is installed in the cradle arm of the EVA package to temporarily stop counting in the counter control section in case the yarn breaks due to some trouble during winding with the wine goo. A cradle portion (15) is provided so that when the cradle arm is raised, the rotation of the package is stopped. Stop I switch (
74) is a switch to be used when the operation for -day ends or when winding is temporarily stopped for some reason.
) etc. is input to the counter control unit (65), the counting of the counter (6+1) is temporarily stopped, the pulses counted up to the time of stopping are temporarily stored, and when the start switch (75) is turned on, the counting is resumed. The counter (64) is controlled so that the count is performed continuously from the count number at the time of stopping.

(E) Winding unit The winding unit (4) winds a cone or cheese package onto a package (8) whose surface is driven by a traversing drum (10), as shown in FIGS. 1 and 3. It is something that can be taken. In addition, (76) in FIG. 3 is a yarn guide, and (77) is a tension device.

In addition, when winding is stopped by a command from the control section, the program cam must be used to forcibly stop the package rotation or the drum (10) (16) so that the brake shoes, etc. are controlled by the fluid cylinder. is desirable.

Next, the operation of the splicing device will be explained together with the operation of the fancy yarn manufacturing system as described above. Now, the third
In the figure, there are six different colored yarns (YA) as yarn feeders.
(YF), each yarn end gripping piece (1
5) Assume that the G-grip is being held.

In this case, the high speed counter (64) in Figure 10 is 000.
-999 can be counted, and the output can be set in multiple stages. For example, if 32 points can be used, 32 types of thread can be used. Now, for example, set the counters as shown in Table 1.

Table 1 In other words, the counter (64
) shifts, or counts up, and stops at a certain set time, and the winding time of the yarn being wound, the type of yarn for the next knotting, and the shift time of the next counter are selected according to the set values of the clicks at that time. do.

For example, in Table 1, if the setting value when the counter is stopped is between 000 and 055,
o.

When the relay (HDMOO) is activated, the yarn type is set to A1, the winding time is set to 1.5 seconds, and the next counter shift time is set to 01 seconds. Similarly, if the value when the counter stops is between 056 and 111, the yarn type B1 winding time is 2.0 seconds.The next counter shift time is 0.
．． Set it to 2 seconds.

Therefore, in FIG. 11, when the winding start switch is turned on (78), the simultaneous boat counter shifts and stops after a certain period of time. At this time, if the value of the counter is, for example, J85J, the relay (HDM■) acts,
After winding (W■) for 2.0 seconds, it stops, uncutting and knotting starts, and at the right timing, the solenoid for yarn B (SOB) is magnetized, and the solenoid rod (STB) protrudes above the board. do. That is, in FIG. 3, the timing at which the solenoid rod (8TB) protrudes is when the rotating plate (6) returns to the origin position (6a) shown by the two-dot chain line after the thread is cut.
STB) protrudes, and then the rotation plate (6) rotates clockwise until it reaches the stopper (STB) position, the plate (6) is positioned to stop, and the gripping piece (15) that grips the end of the yarn (B) ) leads to the nosoting and running position. Thereafter, the rotating arm (29) shown in FIG. 7 is operated, and the yarn end of a predetermined type on the yarn feeding side is guided to the yarn splicing member and spliced with the yarn end on the package side. That is, the yarn end (YP) on the package side cut by the cutter (47) according to the uncut command is immediately sucked and held by the immediately adjacent first suction pipe (45), and then passed to the clamp device (44). The yarn end is clamped at a fixed distance from the tip by the cutting device (41
The yarn end in the free state (19) which has been cut from the N strands is sucked into the untwisting nozzle (39) and the yarn end is untwisted. On the other hand, the cut yarn end (YU) on the yarn feeding side is switched to other yarn ends (YA) to (YF) by the yarn selection device (2), and is brought to the yarn running position. The yarn end is guided as described above by the gripper (30) of said pivoting arm (29) to the second suction pipe (46) position, said second suction pipe (46)
It is clamped by a clamping device (43) in a state where it is suctioned and held, and then it is cut by a cutting device (42), and the free yarn end, similar to the package side yarn end (yp), is suctioned by an untwisting nozzle (40 nozzles). Furthermore, by the rotation of the yarn shifting lever (48), both yarn ends after the untwisting are pulled out from the untwisting nozzles (39) (40), and the yarn ends of the yarn splicing member (37) are pulled out. The threads are overlapped in the splicing hole (49), and the ends of the yarn are spliced together by the fluid ejected from the jet nozzle (49b).

When performing the above thread splicing operation, the suction pipe (45)
Since the position, shape, suction mark, etc. of (46) are set as described above, each yarn end (YP) (YTJ) is connected to the pipe (20
) (45) (46) without being sucked into the yarn splicing member (
37) As mentioned above, appropriate tension is applied to each of the upper parts.

Then, the yarn that has been spliced with a different type of yarn is again wound by the winding device, but since the value of the above-mentioned counter when it stops is a random value, the yarn type and winding time are also a random combination. Then, random winding and knotting are performed, and a fancy yarn with a random combination of colors and lengths as shown in FIG. 2, for example, is wound up. In order to make the process even more random, the selected yarn type, winding time, and counter shift time can also be selected using a random number table, but if the product is manufactured as a knitted or woven fabric, the color tone will be similar. There is a possibility that it will come. Furthermore, for example, if you want to manufacture woven or knitted fabrics based on red, you can do so by selecting a large amount of red in the variety selection.

As is clear from the above description, the yarn splicing device of the present invention is a pneumatic yarn splicing device equipped with a yarn splicing member, in which suction pipes for holding yarn ends are provided before and after the splicing member. At the same time, a guide device with a gripper is provided to guide the yarn end to either suction pipe, so that one of the cut yarn ends is automatically sucked into one suction pipe, and the other yarn end is sucked by the gripper. Since the yarn is guided to the other suction pipe for suction, if one of the yarn ends is selected as the take-up package side, the yarn piecing operation of the take-up package is stopped at the same time as two people are present, and the suction pipe ζ
If the guide device is a suction pipe, the end of the thread will be unnecessarily sucked even during the guidance. However, there is no waste and the waste yarn can be kept as small as possible.

Furthermore, since it is a pneumatic splicing device, the splicing splice □″ is no different from that of a single yarn, and combined with this point, it is the most suitable yarn splicing device for realizing the above-mentioned fancy yarn manufacturing device.

[Brief explanation of drawings]

Figure 1 is an overall configuration diagram of a fancy yarn manufacturing system, Figure 2 is a diagram showing an example of fancy yarn manufactured by the above system, Figure 3 is an actual diagram similar to Figure 1, and Figure 4 is a diagram showing an example of fancy yarn manufactured by the above system. FIG. 5 is a side view of the yarn selection section, FIG. 5 is a diagram showing the drive mechanism of the rotating plate, FIG. 6 is a front view showing the gripper's gripping operation of the yarn end, FIG. 7 is a plan view of the yarn splicing section, and FIG. 8.9 are sectional views taken along lines 1--2 and 2--2 in FIG. 7, respectively. FIG. 10 is a block diagram of the control section, and FIG. 11 is a time chart. (3)...Thread splicing section, (29)...Swivel arm, (
30)... Gripper, (37)... Yarn splicing member, (
45), (46)...Suction pipe. -9OQ-- Figure 6 Procedural Amendment (Voluntary) Kazuo Wakasugi, Commissioner of the Patent Office (Examiner of the Patent Office) 1. Indication of the case 1981 November 2015 @f Application No. 1-2999 2. Name of the invention 3. Person making the amendment Relationship to the case Patent Applicant Address 3-4 Kisshoin Minami Ochiai-cho, Minami-ku, Kyoto 601 Date of notice of reasons for refusal Voluntary amendment 5 Application and specification to be amended 6 Contents of amendment

Claims (1)

[Claims] In a pneumatic yarn splicing device equipped with a yarn splicing member, suction pipes for holding yarn ends are provided before and after the yarn splicing member, and a guide device with a gripper is provided to guide the yarn end to either suction pipe. A yarn splicing device characterized by being provided with.