JPH01266245A - Warp ender for loom - Google Patents

Abstract

PURPOSE:To freely convey a warp ender carried by an operator to a prescribed loom position, by detachably providing a feeding pipe for a fluid stream so as to actuate a pneumatic type warp ender. CONSTITUTION:A pipe 24 for compressed air and a pipe 25 for suction of a yen ender 11 are connected to pipes 20 and 22 and a yarn end (Y1) connecting to a warp yarn beam of cur warp yarns is searched, guided to a suction opening 17, sucked and held. A yarn end (Y2) pulled out of an ending yarn package 12 is guided to a suction opening 18 and a yarn ending start switch button 29 is pushed to carry out yarn ending operation.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a warp splicing device for a loom.

[Conventional technology]

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

That is, the warp thread (1) for 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 yarns (1
) may be cut (X). In such a case, the warp yarn breakage is detected by a warp yarn breakage sensing device called a dropper (9) shown in Figure 7, and the loom is immediately stopped and the lamp (10) is turned on so that the loom can be operated by the operator. The operator is informed of this and is supposed to splice the yarn.

In this case, threads for splicing, called "driving threads", are usually prepared in advance near the loom, and the operator takes out one of the said chasing threads and connects one end of the chasing thread with the warp thread of the cut warp thread. The thread end on the thread beam side is tied.

The operator passes the other end of the chasing yarn through the hole (6) of the belt (5), the reed 1 (7), etc., and tapes it onto the fabric on the roller (8) side, and the loom is restarted. .

[Problem to be solved by the invention]

When tying a thread as described above, the operator forms and ties the knot, and the knot is still being squeezed by the reed, so there is still a risk of the thread breaking. Furthermore, it is necessary to prepare a thread bundle for each loom for the operator's splicing work, and making thread threads is troublesome, and it is necessary to prepare threads of the same type as the warp threads cut to a certain size.

The present invention aims to solve the above problems.

[Means to solve the problem]

The present invention is a yarn splicing device for performing warp yarn splicing,
A warp yarn cut by the yarn splicing device, a trailing yarn to be spliced, a pneumatic yarn splicing mechanism, and a suction air flow supply mechanism or compressed air flow supply mechanism for yarn processing of the pneumatic yarn splicing mechanism. The splicing device is equipped with a joint pipe that is removably connected to the blower source or compressed air supply source on the loom side, and is portable by the operator and can be carried freely to a predetermined loom position. It is.

〔Example〕

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

In FIGS. 1 and 2, a schematic configuration of the yarn splicing device (11) is shown. That is, the yarn splicing device (11) includes a yarn tracking package (12) in which a cut warp yarn and a yarn to be spliced are wound into a package, and a warp yarn (Yl) and the yarn chasing (Y2). a pneumatic yarn splicing unit) (13) that splices the yarn ends (Yl) (Y2), and a yarn end holding mechanism (14) (14) that holds the yarn ends (Yl) (Y2).
15) and a compression supply vibrator (16) for supplying compressed air to the pneumatic yarn splicing unit.

In the above embodiment, a pair of suction openings (17) and (18) are provided on both sides of the yarn splicing unit as a yarn end holding mechanism, so in this case, the suction openings <
17) A satanion vibe (19) is attached to (18) for applying a suction air flow.

A one-touch joint (21) is attached to the end of the flexible pipe (24) connected to the compressed air supply vibe (16) to connect it to a pipe (20) connected to the compressed air supply source on the loom side, and a suction pipe Similarly, a one-touch joint (23) for connecting to a pipe (22) connected to a blower source on the ground side is attached to the end of the flexible vibe (25) connected to (19).

In FIG. 1, (30) is the drive mechanism of the yarn splicing device;
(31) is a thin tube for supplying compressed air to the splicing hole, which will be described later, and its on/off timing is determined by an electromagnetic valve (32). In addition, <33) is a yarn end untwisting nozzle (Fig. 3 (3)
4) A thin tube for supplying compressed air to (35) ), and a pulp (36) for containing water or solution in the compressed air is placed in the middle.

The yarn splicing device (11) is attached to the main body frame (26), and the frame (26) has a grip bar (2
7) is fixed and can be carried freely. (28) is a control device for controlling the drive of the yarn splicing device, and (29) is a switch for operating the yarn splicing device.

It should be noted that the movement of the various moving members in the yarn splicing unit (13) can be freely designed as to whether the drive source is an electric motor or a fluid cylinder. If the drive source is an electric motor, it is necessary to install a small battery, but if the drive source is a fluid cylinder, the compressed air supply vibrator (
Drive can be easily obtained by branching compressed air from 16).

Fig. 3.4 shows an example of a yarn splicing unit applied to the present invention. 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 (11
) is a yarn splicing device that applies swirling airflow to the ends of cut sized yarns to splice them. The ends are untwisted.

In Fig. 3, (13) is a yarn splicing unit provided on the main body frame (26), (18> (17) is the yarn end (Y2) and cutting of the yarn pulled out from the additional yarn package (12). The thread end (Y
This is a suction pipe opening for suctioning and holding the yarn (Yl) on the warp side and the yarn (Y2) on the side of the tracking package (12) by the operator when the warp yarn is cut. (18) and both yarns are positioned and held on the yarn splicing member.

On the − side of the yarn splicing unit (13), there is a yarn (Yl) guided to the front of the yarn splicing unit (13) by the operator.
(Y2) A thread guide lever (37) (38) that captures and guides the thread further inward is rotatably provided via a shaft (39). As a result, the thread (Y2) passes through the clamp device (40), the right groove of the fork guide (41), the thread splicing hole (42), the thread cutting device (43), and the right groove of the fork guide (44), and then passes through the opening (18). ). On the other hand, the thread (Yl) is connected to the clamping device (4
5), left groove of fork guide (44), thread splicing hole (4)
2), the thread cutting device (46), and the left groove of the fork guide (41) to reach the opening (17).

The clamping device (40) (45) is a thread (Y2),
(Yl) and thread cutting devices (43), (4
6) is the clamped thread (Y2).

Cut (Yl). Cut yarn end (Y2), (Y
1) is suctioned into adjacent nozzle holes (35) and (34), and as shown in FIG. 4, a solution (47) for dissolving the glue is sprayed onto the threads to untwist them.

The nozzle holes (34) (35) have thread ends (Yl),
(Y2), an ejection hole (48) is formed to emit a swirling air flow, and this ejection hole (48) is connected to the thin tube (33).
) to a pressurized air supply. Further, the solution (47) in the solution tank (49) is connected to the thin tube (33).
) through the suction tube (50).
) is provided, and the suction pipe (50) is provided with an on-off valve (52). The solution may be water or hot water, but it may also be a solvent that decomposes the glue (for example, caustic soda with lactogen added). The pipe (33) is set to be supplied with pressurized air from the time when the new thread cutters ffi (43) and (46) are activated until the start of thread splicing, and the on-off valve (5Σ) is set to supply pressurized air. It is controlled so that it is opened at the same time as the supply of pressurized air starts, and closed before the supply of pressurized air is stopped.

After the on-off valve (52) is closed, pressurized air is supplied for a certain period of time, thereby drying the yarn ends (Yl) and (Y2), making untwisting easier.

The thread shifting levers (37) and (38) are the thread end (Yl
), after the untwisting of (Y2) is completed, it is further turned and the yarn end (Y
The IL (Y2) is arranged to align with the yarn splicing hole (42). The yarn splicing hole (42) is connected to a pressure air supply source via the pipe (31), and a swirling air flow is applied to the yarn ends (Yl) and (Y2>) aligned in the yarn splicing hole (42). This allows for thread splicing.

According to this configuration, the solution (47) is sprayed in the form of mist together with pressurized air onto the yarn ends (Yl) and (Y2) sucked into the nozzle holes (3'4) (35), so that the yarn ends (Y2) are sprayed together with pressurized air.
l), (Y2>) is melted and the thread end (
Yl), (Y2> The yarn ends (Yl) and (Y2) are dried,
Furthermore, it will be fully untwisted. Then, the untwisted yarn ends (Yl) and (Y2) are aligned in the yarn splicing hole (42) and spliced by the action 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, a pasting type splicing can be performed using the splicing device.

Furthermore, since the solution is sprayed within the nozzle holes (34) and (35), 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 (34) and (35), but since it is sufficient to apply the solution before untwisting, the threads are cut by the thread cutting devices (43) and (46). Alternatively, the solution may be sprayed at the same time.

In addition, in the example, the solution was sprayed on the yarn ends (Yl) and (Y2), but the yarn ends (Yl) and (Y2)
may be attached to the solution, and the end of the yarn (YI
L (Y2) may be dried by blowing warm air onto it. Note that drying of the yarn ends is not necessarily required.

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

For example, if the warp thread (1a) is cut (x) between the belt (5a) and the warp thread beam (4) as shown in Fig. 5.6, the warp thread cut detection device shown in Fig. 7 ( 9) is activated,
Warp thread breakage is detected. That is, the dropper (9) is made of a conductive material and is supported on the vertical thread (1) which is stretched vertically as shown in FIG.
).

When thread breakage occurs, the tension of the cut thread rapidly decreases,
The dropper (9) falls downward along the metal shaft (54), and by contacting the sensing plate (53), the shaft (54)
, the dropper (9), and the sensing plate (53) are energized by the electric wire (55), and the thread trimming display member (10), for example, a lamp, lights up. Therefore, the upper δ self-sensing plate (53) is vertically 1
By dividing each book into sections and taking out signal lines from each sensing plate, the position of the cut warp thread can be detected. In addition, if it is not necessary to recognize each warp thread, please use the sensing plate (53).
can be a common sensing plate across multiple warp threads.

When the yarn breakage indicator lamp on the loom lights up based on the detection signal of the warp yarn breakage detection device (9), the operator arrives at the loom and starts the yarn splicing operation.

First, as shown in Fig. 1, the operator first connects the compressed air vibe (24) and suction vibe (25) extending from the main body frame of the yarn splicing device to the vibe (20) installed on the loom side or on the ground side. 22).

Next, the operator attaches the cut warp thread to the warp thread beam (
The thread end (Yl) connected to Fig. 6 (4)) is searched for, and the thread end (Yl) is guided to the first suction opening (17) in Fig. 1 and held under suction. Further thread package (12)
The thread end (Y2) pulled out from the second suction opening (1
8) to complete the preparation for splicing.

At this time, the thread (Yl,) (Y2) is in the state shown in Figure 3, and then the thread splicing start switch button (Fig. 1 (
By pressing 29)), the yarn end operation described above is performed. Once the thread is spliced, the length of the thread is long enough to pass through the belt and reed and fix the thread end on the woven fabric.
Rotate the thread chasing package (12) in the thread unraveling direction,
After pulling out the thread, it is either prepared in the frame shown in Figure 5 or cut by a cutter (55) held by the operator. Therefore, the following thread (Y3) connected to the warp thread beam (4)
) has been prepared long enough.

In addition, as shown in Figure 5, the woven fabric roll (8
) side yarn end portion (1b) is preferably cut and removed at a position near the cloth.

Next, the operator performs a threading operation of the spliced trailing yarn connected to the warp yarn beam. It is desirable to level the belts for this holder to the same height.

By threading the dropper prior to the belt, and after threading the belt, threading the reed (7) 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 temporarily fixed on the fabric (F), that is, it is pasted with tape or the thread end holding member is positioned and stopped on the fabric. If the operation of the loom is restarted, even if the fixation of the tip of the trailing thread is released after several weft threads have been driven in, the trailing thread will be woven to the right and will not fall.

[Effects of the Invention] As described above, in the present invention, the warp splicing device of a loom is a pneumatic splicing device, and the pipe for supplying fluid flow for operating the splicing device is detachably provided, thereby making it easier for the operator to operate. It can be carried freely, and the cut warp threads can be spliced with a seam that is the same thickness as the warp threads, without forming knots like in conventional methods, and can be used on existing looms. It is applicable and contributes to producing high quality textiles.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional side view showing an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a front view showing an example of a pneumatic yarn splicing device.
Fig. 4 is a cross-sectional plan view of the same, Fig. 5 is a schematic diagram of the warp thread threading operation, Fig. 6 is a perspective view showing the warp thread breakage state of the loom, and Fig. 7 is an example of the warp thread breakage detection device. FIG. 3 is a cross-sectional side view. (1) Warp yarn (11) Yarn splicing trolley (12
) Yarn chasing package (13) Pneumatic splicing unit (16) Compressed air supply pipe (19) Suction pipe (20) (22) Pipe (S) Loom (
Yl) End of warp thread (Y2) End of trailing thread, 12 Fig. 5 1b

Claims (1)

[Claims] A device for splicing warp yarns on a loom, comprising a warp yarn cut by the splicing device, a trailing yarn to be spliced, a pneumatic splicing mechanism, and a suction air flow for yarn processing of the pneumatic splicing mechanism. A warp yarn splicing device for a loom, characterized in that the yarn splicing device has a joint pipe detachably connected to a blower source or a compressed air supply source on the loom side. Device.