JPH01266244A - Warp ending cart - Google Patents

Abstract

PURPOSE:To obtain the subject compact cart without requiring yarn ending operation by an operator, by providing a package of a wound ending yarn, water tank for removing a size and yarn ender in a yarn ending cart. CONSTITUTION:A yarn end connecting to a beam 4 of a warp yarn cut by an arm 15 of a yarn ending cart 10 stopped at a prescribed position is sucked and guided to a yarn ender 18 and the yarn end of an ending yarn package 1 on the side of an ending yarn package 16 is sucked to the yarn ender 18 by the second arm. A solution dissolving a size in a water tank 49, together with pressurized air, is sprayed on both yarn ends to dissolve the size and simultaneously untwist the yarn ends. The untwisted yarn ends are then tied by action of swirling air streams.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic splicing carriage for warp yarns in a loom.

[Conventional technology]

In a loom used in the weaving process, a large number of warp yarns (1) as shown in FIG. ) is supplied by a weft transfer means (3) such as a shuttle, rapier, fluid, etc., and the cloth is woven.

That is, the warp thread (1) of the woven fabric drawn out from the warp thread beam (4) passes through the hole (6) of the belt (5), and passes through the hole (6) of the belt (5).
The fabric is passed through and wound onto a roll (8) for winding up the fabric.

In such a loom (S), warp threads (1
) may be cut (X). In such a case, a warp thread breakage sensing device called a dropper detects the warp thread breakage, and the loom immediately stops and a lamp lights up to inform the operator that the loom is present, so that the operator can splice the threads. It has become.

In this case, the thread for splicing (9) is usually called
9) is prepared in advance near the loom, and the operator takes out the thread chasing thread (9) and connects one end of the chasing thread (9) with the end of the warp thread beam side of the warp thread that has been cut. tied together.

The other end of the chasing yarn is passed through the hole (6) of the belt (5), the reed (7), etc. by the operator, and is taped onto the fabric on the roller (8) side, and the operation of the loom is restarted.

[Problem to be solved by the invention]

As mentioned above, even if a warp cut signal is issued when a warp yarn breakage occurs in the loom, the signal is meaningless unless confirmed by the operator, and a long stoppage of the loom is unavoidable. In addition, there is also a oiito east (
9) must be prepared for each loom, and adding thread is troublesome, and it is necessary to unravel thread from a package of the same type as the warp thread and cut it to a certain size. Furthermore, depending on the size of the loom frame, there are various problems such as difficulty in splicing yarns by one operator and the need for a plurality of operators.

The present invention aims to solve the above problems.

[Means to solve the problem]

The present invention includes a package in which a splicing yarn is wound onto a yarn splicing cart that moves along the warp yarn row of a loom, a water tank for removing size from the sized yarn, and a vertical yarn cut from the splicing yarn. A yarn splicing device is provided to splice the yarn.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

In Fig. 1, a yarn splicing cart (10) that splices cut warp yarns of a loom (S) is connected to a rail (10) extending in the direction in which the warp yarns are arranged.
11). In this embodiment, the truck (10) has a vertical beam (4) and a dropper (12).
) is provided so as to move above the group of warp threads between.

That is, it is desirable to arrange the yarn splicing cart (10) as close to the warp cutting point as possible; for example, in the loom, the portion where the warp yarn is likely to break is the part of the reed (7). Finally, when the weft yarn is pushed toward the woven fabric by the reed cloth (7), there is a high possibility that the warp yarn will be broken due to contact and friction between the warp yarn and the reed cloth.

Therefore, it is desirable to install a yarn splicing cart in front of the belt (5), that is, on the woven fabric side, but if the yarn is cut between the belt (5) and the beam 4), the yarn splicing cart in front of the belt It is difficult to splice the threads. Therefore, the position of the yarn splicing cart is at least the belt (5) and the vertical beam (4).
) is preferable.

FIG. 1 shows an example in which the above-mentioned truck is arranged at the position closest to the vertical beam (4). That is, by providing it at this position, even if the warp yarn is cut at any position, the yarn end on the warp beam side can be searched for.

As shown in Figs. 1 to 3, the yarn splicing cart (10) is supported by a rail (11) via wheels (13) so as to be movable in the direction of the arrow (14), and is mainly used for vertical rotation. A first arm (15) that searches for the vertical yarn end on the beam (4) side, and a second arm (17) that pulls out the yarn from the yarn tracking package (16) held by the cart (10) itself. It has a yarn splicing device (18) that splices both yarn ends pulled out by the first and second arms, and a drive device (19) and a control device (20) that drive each of the devices.

The first arm (15) is preferably a suction arm that searches for warp ends using air suction force, and like the second arm (17), a suction arm is also preferred. Furthermore, the yarn splicing device (18) is preferably a pneumatic yarn splicing device that can splice the yarn by air force without forming a knot. Therefore, the above-mentioned truck (10) is equipped with a blower device (
21), or alternatively, a suction duct may be installed along the running rail of the bogie so that it can be connected to the pipe inside the bogie as appropriate.

The opening of the first arm (15) has a certain width (W) as shown in FIG. 3, and is shaped to exert a suction effect across a plurality of warp threads. That is, by bringing the opening of the first arm (15) close to the vicinity of the cut warp threads, only the ends of the threads to be spliced can be suctioned and separated from the other uncut warp threads. One of the second arms (17) also has an opening having a width approximately equal to the package width so as to be able to suction and hold the yarn end of the thread tracking package (16), and the first and second arms (15) ) (
17) can be pivoted around the hollow shafts (21) and (22), as shown in the shaft needles (23) <24) in FIG. Note that (25) is a simple cylindrical drum that comes into contact with the yarn chasing package (16) and rotates the package in a direction to unravel the yarn of the package, and is rotated by a driving means such as a motor.

Figure 5.6 shows the yarn splicing device (18) installed on the above-mentioned trolley.
- Give an example. In general, warp yarns on a loom are usually glued to increase yarn strength.

By the way, the above-mentioned yarn splicing device untwists the yarn ends and then rotates the untwisted yarn ends together using a swirling air flow to perform yarn splicing. However, since the warp yarns are glued, the yarn splicing device cannot untwist the yarn ends, and therefore the yarn splicing device (18
), when splicing is performed by applying a swirling air flow to the end of the cut sized yarn using a splicing device, a solution is applied to the end of the sized yarn to dissolve the glue, and then the end of the sized yarn is spliced. It is designed to be untwisted.

Hereinafter, one embodiment of the above device will be described in detail based on the accompanying drawings.

In FIG. 5, (18) is a yarn splicing device provided on the trolley (10), and when a warp yarn (sealed yarn) breaks, suction arms (15) and (17) are spliced by a mechanism not shown. The yarn side yarn 1a and the follow-up package side yarn YP are each sucked and held and guided to the front of the yarn splicing device (18). An arm (1
5) (17) The yarn guide levers (34) and (35) that catch the yarn 1a and YP guided to the front of the yarn splicing device (18) and guide them further inward are the shirt) (36
). As a result, the thread YP is connected to the clamp device (37) and the fork guide (38).
The arm (17) is reached through the right groove of the thread splicing hole (39), the thread cutting device (40), and the right groove of the fork guide (41). On the other hand, the thread 1a is connected to the clamp device (42), the left groove of the fork guide (41), the thread splicing hole (39), the thread cutting device (43), and the fork guide (3).
8) and reaches the arm (15) through the left groove. The above clamp device fif (37) (42)
clamps the yarns YP and la, and uses a yarn cutting device (40), (
43) cuts the clamped thread YP, la.

The cut yarn ends YP and la are adjacent nozzle holes (44)
(45) 1, and as shown in FIG. 6, a solution (46) for dissolving the glue is sprayed onto the fibers and the fibers are untwisted.

7/Zuru hole (44) (45> has thread ends YP, la
A nozzle (47) is formed to emit a swirling air flow to untwist the fibers, and this nozzle (47) is connected to a pressurized air supply source via a pipe (48).

Further, an injector (51) for sucking the solution (46) in the solution tank (49) through a suction pipe (50) is installed in the pipe (48), and an on-off valve (
52) is provided.

Water or hot water may be used as a solution, but a solvent that decomposes the glue (
For example, it may be caustic soda with lactogen added. The pipe (48) is equipped with a thread cutting device (40
), (43) are activated until the yarn splicing starts, the on-off valve (5
2) is controlled to be opened at the same time as the supply of pressurized air starts, and closed before the supply of pressurized air is stopped. On-off valve (
By supplying pressurized air for a certain period of time after closing 52), the yarn ends YP and la are dried and untwisting becomes easier.

The above system gathering levers (34) and (35) are thread end YP,
After the untwisting of 1a is completed, the yarn turns further to align the yarn ends YP and 1a with the yarn joining hole (39). The yarn splicing hole (39) is connected to a pressure air supply source through a pipe (53), and the yarn ends YP aligned in the yarn splicing hole (39) are connected to a pressure air supply source through a pipe (53).
, la are spliced by applying a swirling air flow to them.

According to this configuration, the solution (40
) is sprayed in a mist, the glue adhering to the yarn ends YP, la is melted, and the yarn ends YP, la are untwisted.

By controlling the on-off valve (52), pressurized air is supplied to the nozzle holes (44) (45) for a while after the solution (46) is sprayed.
The yarn ends YP and la are dried and further sufficiently untwisted. Then, the untwisted yarn ends YP, 1a are aligned in the yarn splicing hole (39) and spliced by the effect of the swirling air flow.

In this way, the solution is sprayed onto the yarn ends of the sized yarn to dissolve or decompose the glue, and then the yarn ends are untwisted, so even sized yarn can be easily untwisted. Therefore, the sized yarn can be spliced using the splicing device.

Furthermore, since the solution is sprayed within the nozzle holes (44) and (45), there is no risk of the solution scattering and contaminating the outside.

Furthermore, when removing the glue by melting it, if a small amount of glue remains at the end of the thread, the glue will harden after the thread is spliced, resulting in even higher thread strength.

In addition, in the example, the solution was sprayed in the nozzle holes (44) and (45), but since it is sufficient to apply the solution before untwisting, the threads are cut by the thread cutting devices (40) and (43). Alternatively, the solution may be sprayed at the same time.

Further, in the embodiment, the solution was sprayed onto the yarn ends YP and la, but the yarn ends yp and 1a may also be dipped in the solution, and warm air was further blown onto the yarn ends YP and la to dry them. You may also do so. Note that drying of the yarn ends is not necessarily required.

Next, the operation of the yarn splicing cart will be explained.

For example, if the warp thread (la) is cut (X) between the belt (5a) and the warp thread beam (4) as shown in Fig. 7,
The warp thread cutting detection device (12) shown in Figure 1.4 operates,
Warp thread breakage is detected. That is, the dropper (12) shown in Figure 1.4 is made of a conductive material, and the dropper (12) shown in Fig.
As shown in the figure, it is supported on a taut warp thread (1) and has a gap between it and the lower sensing plate (54). When thread breakage occurs, the tension of the cut thread rapidly decreases, so the dropper (12) falls downward along the metal shaft (55) and comes into contact with the sensing plate (54), causing the shaft (55), The dropper (12) and the sensing plate (54) are energized by the electric wire (56), and the thread trimming display member (57), for example, a lamp, lights up. Therefore, by dividing the sensing plate (54) into individual warp yarns and taking out signal lines from each sensing plate, the position of the cut warp yarn can be detected. In addition, in this example, since it is not necessary to recognize one warp thread, the sensing plate (54
) can be used as a common sensing plate across multiple warp threads. This is because the suction opening of the first suction arm (15) for searching for warp threads is wide, so if the opening of the suction arm is located near the position of the cut warp thread, the cut thread end will be suctioned and it can be searched. It is.

The yarn splicing cart (10) stops at a predetermined position based on the detection signal of the warp yarn breakage detection device (12). Then the first
The arm (15) rotates to the position shown in FIG. 3, that is, close to the warp thread group, and suctions the end of the cut warp thread connected to the beam (4). That is, if the warp yarn portion (1a) near the beam (4) in FIG. 7 is suctioned, the yarn end portion (la) whose tip is in the IJ-state is easily suctioned by the suction arm. Furthermore, even if the cut point is between the belt (5a) and the reed (7), the suction force will cause the thread connected to the beam (4) to pass through the belt (5a) and be sucked into the suction arm (15). Ru.

The above-mentioned first suction arm is connected to the dashed line (23) in Figure 2.
), beam (4) and Zakujon arm <1
5) The warp yarns in between are guided to a predetermined position of the yarn splicing device (18).

On the other hand, the second suction arm (17) on the trolley (10)
) turns to a position close to the surface of the yarn chasing package (16) as shown in Fig. 2.3, sucks the yarn end on the pan cage (16) side, and causes the drum (25) to move the yarn in the unraveling direction of the package. The package (16) is rotated and pivoted in the direction of the arrow (24) in FIG.
) and the second suction arm (17) is guided to the yarn splicing device (18).

Next, when the yarn splicing device (18) is activated, the belt and the reed are threaded so that the yarn length is sufficient to fix the yarn end on the woven fabric. After the yarn chasing package (16) is rotated a predetermined amount in the yarn unraveling direction and the yarn is pulled out, the yarn is cut by a cutter (58) shown in the third figure. Therefore, a sufficient length of additional threads connected to the warp thread beam (4) has been prepared.

In addition, as shown in Figure 7, the cloth roll (8) produced by cutting the warp threads
The side thread end portion (1b) is connected to the suction arm (5) in Fig. 1.
9), it is preferable to suction and cut at a position near the cloth, and remove the excess thread by suction. Note that it is possible to arrange the suction arm (59) so as to extend from the yarn splicing carriage (10).

Next, a threading operation is performed for the spliced trailing thread that is connected to the warp thread beam. At this time, it is desirable to level all belts to the same height.

The above-mentioned threading can be carried out manually using a known threading device, but it is also possible to carry out the threading by providing an automatic threading device in the thread splicing carriage. For example, as shown in Figure 7.8, where the warp threads are cut, the gap (A) between the warp threads is larger than the gap (a) between the other warp threads, so this widened gap can be removed mechanically or optically. The vertical threads (lc) on both sides of the thread path of the cut warp thread (1a) are detected and cut (1d).
By contacting the guide pieces (60) (61) from the cart side and pushing them apart in the direction of arrows (62) < 63) in Fig. 7, as shown in Fig. 8, the guide pieces (60) and (61) are placed in A large space (64) is created on both sides of and (5a). Utilizing this space, from the cart side, the yarn end holding member (65) was placed on standby at a position on the cloth roll (8) side of the belt, and gripped the end (YPI) of the thread chasing (YP). The arm member is attached to the warp thread beam (4) of the belt (5a).
) side, the threading of the belt (5a) is completed by passing the thread through the hole of the belt (5a) and delivering the tip of the thread end to the waiting thread holding member (65).

If the threading of the dropper is carried out prior to the above-mentioned belt, and after threading the belt, the threading of osaku 7) is carried out in the same manner, the tip of the thread end of the additional thread can be guided onto the cloth roll (8).

Next, the tip of the thread end of the chasing thread that has been threaded is fixed on the fabric (F), that is, it is pasted with tape or the thread end holding member (Fig. 8 (65)) is attached to the fabric (F). If the loom is restarted after the loom is stopped at the top position, after several weft threads have been driven in, even if the tip of the trailing thread is released, the trailing thread will be woven into the center and fall. Never.

The yarn splicing cart (10) is arranged so that one loom corresponds to one loom, or one yarn splicing cart corresponds to a plurality of looms, and the yarn splicing cart (10) travels to the corresponding loom in response to a thread cutting signal. The yarn splicing described above can be performed.

〔Effect of the invention〕

As described above, according to the present invention, warp splicing in a loom can be automatically performed using a movable splicing cart, thereby avoiding troublesome splicing operations by the operator, and
It is possible to omit the effort and space required to equip the loom with the east side of the trailing thread, and it is possible to further improve the operating efficiency of the loom factory.

Furthermore, since the above-mentioned cart has a water tank, when processing yarn ends during splicing of vertical yarns with glue attached, the water in the tank can bring the ends of the yarn into an optimal state for splicing. It is a compact yarn splicing cart that can be used without installing water supply pipes.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing an embodiment of a system to which the present invention is applied, FIG. 2 is a side view showing an embodiment of a yarn splicing cart,
FIG. 3 is a front view of the same, FIG. 4 is a side view showing a vertical cut detection device, FIG. 5 is a front view showing an example of a yarn splicing device, and FIG.
The figure is a sectional view showing the yarn end untwisting device, Figure 7 is a plan view showing the warp thread cutting state, Figure 8 is a schematic plan view showing the warp thread threading method, and Figure 9 is the warp thread cutting state. FIG. (IHla) Warp yarn (10) Yarn splicing cart, (16) Yarn chasing package (18) Yarn splicing device, (49> Water tank/4 Fig. 3

Claims (1)

[Claims] The thread splicing cart that moves along the warp thread row of the loom has a splicing package for thread splicing, a water tank for removing the size from the sized thread,
A warp yarn splicing cart characterized by having a yarn splicing device that splices the above-mentioned chasing yarn and the cut warp yarn.