JPH0230469Y2 - - Google Patents

Description

[Detailed description of the invention] Purpose of the invention (industrial application field) The present invention relates to a weft storage device for a shuttleless loom, which is equipped with a weft adhesion storage surface for adhering and storing the weft ejected from a storage nozzle. be.

(Prior art) In a fluid jet loom, it is necessary to measure and store a predetermined length of weft supplied from a weft supply source each time weft is inserted, and conventionally, such a storage device has been equipped with a length measuring roller. Commonly used storage devices include an air pool type storage device in which the length of the weft yarn is continuously measured by a mechanism and is ejected into a storage pipe for storage, and a drum pool type storage device in which the length of the weft yarn is wound around a drum to measure and store it. has been adopted. However, in all of these weft storage devices, the weft pulling resistance is large, so it is necessary to increase the injection pressure of the main nozzle for weft insertion to increase the weft propulsion force, resulting in increased compressed air consumption and There is a problem in that a weft yarn with weak yarn strength may cause jetting breakage in the main nozzle for weft insertion.

An example of a weft storage device that attempts to solve this problem is disclosed in Japanese Patent Laid-Open No. 57-95349. In this conventional device, the weft yarn is blown from a storage nozzle onto the outer surface of an endless belt stretched between a driving roller and a driven roller, and is deposited in a coil shape. In such a storage form, the pull-out resistance of the weft yarn is small, and the problems of increased consumption of compressed air and yarn breakage, which were problems in the air pool method or drum pool method, are eliminated.

(Problems to be Solved by the Invention) However, although this conventional device has the advantages described above, it also has the following problems. In other words, in a storage mode in which the weft is attached and stored, the weft storage surface is formed using moquette, raised woven fabric, etc., or a suction device is placed on the back side of the breathable member to collect the weft on the surface of the breathable member. It is necessary to effectively adhere the weft ejected from the storage nozzle onto the weft storage surface by employing a method such as suction and adhesion. It means that it will stick. As a result, the fly fluff deposited on the weft storage surface adheres to the weft yarns pulled out from the storage surface and is brought into the main nozzle for inserting the weft, causing a clog in the main nozzle or causing fly fluff to be woven into the woven fabric. This causes weaving flaws.

The above-mentioned publication discloses an embodiment in which a plate piece is placed on the weft storage surface to prevent external influences such as the adhesion of fluff, and air is blown onto the weft storage surface to prevent the accumulation of fluff. However, this is not desirable as it complicates the mechanism.

Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention has a weft adhesion storage surface that adheres and stores the weft ejected from a storage nozzle and that moves relative to the storage nozzle. A storage container for storing the weft yarn is constructed of a main body and an openable/closable cover, and at least one of the cover or the main body is provided with a yarn draw-out port for guiding the weft yarn pulled out from the weft attachment storage surface, and the cover and the main body The yarn drawing outlet was communicated with the outside through an opening/closing part, and at least the weft attachment and storage surface was housed in the storage container.

(Function) That is, when the loom is in operation, the weft yarn on the weft attachment storage surface is pulled out through the yarn withdrawal outlet together with weft insertion, and is ejected from the weft insertion main nozzle. The intrusion of fluff into the storage container is limited to when passing through the thread withdrawal port, and air is constantly injected into the storage container from the storage nozzle, and the air inside the storage container leaks from the thread withdrawal port. Intrusion of fluff from the opening is reliably prevented, and fluff adhesion to the weft adhesion storage surface in the container is effectively prevented.

If a weft breakage or a weft insertion error occurs, when opening the cover to adjust the weft storage condition on the weft adhesion storage surface to suit restarting the machine, the cover must be pulled out from the storage container. The weft threads can be removed from the thread outlet communicating with the outside without being cut, and conversely, even when the cover is closed, the thread can be easily passed through the thread outlet, resulting in extremely high workability.

(Example) Hereinafter, the first and second examples embodying the present invention will be described.
This will be explained based on the diagram.

Weft yarns Y1 and Y2 supplied from a pair of weft supply sources (not shown) are introduced into the weft storage device 1 at a constant speed via a pair of length measuring mechanisms (not shown).

To explain the weft storage device 1 in detail, a storage main body 2 is fixed to a fixed part such as a side frame of a loom, and the main body 2 is rotated at a predetermined speed by a drive device (not shown) on the front side (weft insertion side). A pair of drive rollers 3 and 4 are vertically spaced apart from each other. A pair of driven rollers 5, 6 are disposed on the sides of both rollers 3, 4 in correspondence with the driving rollers 3, 4, and an endless belt 7 is provided between the rollers 3, 5 and between the rollers 4, 6. , 8 are wound respectively. On the outer surfaces of both belts 7 and 8, moquettes are laid to form weft adhesion storage surfaces 7a and 8a. Both drive rollers 3 and 4 are designed to rotate clockwise in FIG. 1, and both belts 7 and 8 are designed to run in the direction of the arrow shown by the chain line in the same figure. The lower belt 8 is projected more forward than the upper belt 7 and is shifted to the left.

A storage nozzle 9 is supported in the storage body 2 above the drive roller 3 through the axial direction of the drive roller 3, and its tip is bent downward and directed toward the weft adhesion storage surface 7a on the drive roller 3. has been done. The weft yarn Y1 sent out from the one length measuring mechanism is introduced into the nozzle 9, and the weft yarn attachment storage surface 7
It is designed to be continuously ejected upwards. Similarly, above the drive roller 4, the storage nozzle 10 is connected to the drive roller 4 with respect to the storage body 2.
It is supported through the shaft in the axial direction, and its tip is bent downward and directed toward the weft attachment and storage surface 8a on the drive roller 4. Then, the nozzle 10 has a weft Y2 sent out from the other length measuring mechanism.
is introduced and is continuously ejected onto the weft attachment storage surface 8a. Weft yarns Y1, Y2 sprayed onto weft attachment storage surfaces 7a, 8a
is the weft attachment storage surface 7 as the belts 7 and 8 run.
It is attached and stored in a coil shape on a and 8a.

A cover 11 is connected to the front surface of the storage body 2 so as to be rotatable up and down by a hinge 25, so that the front opening of the storage body 2 can be opened and closed. That is, storage nozzles 9, 10 and weft adhesion storage surfaces 7a, 8 are formed by storage main body 2 and cover 11 that can be opened and closed.
A storage container is configured to store a. cover 1
On the front wall of the cover 11, when the cover 11 is closed, a long hole thread outlet 11a is formed in the left-right direction at a position corresponding to the weft attachment storage surface 7a. Groove 1 on the bottom edge
1b is recessed parallel to the thread outlet 11a, and the thread outlet 11a and the groove 11b are connected to the slit 11.
It is connected by c. That is, the cover 11
When opened, the thread outlet 11a is communicated with the outside via the slit 11c and the groove 11b. When the cover 11 is closed, the thread drawer outlet 1
1a, the slit 11c and the groove 11b form a closed yarn passage hole, and the weft Y fed out from the storage nozzle 9
1 is inserted and guided through the thread outlet 11a, and
The weft Y2 fed out from the storage nozzle 10 is in the groove 1.
1b (hereinafter referred to as the thread drawer exit).

On the inner side of the front wall of the cover 11, the thread outlet 11a is provided.
11b and a weft guide plate 12 having a slightly narrower guide hole 12a having almost the same shape as the slit 11c.
is fixed by a screw 13 and a nut (not shown), and the guide hole 12a is connected to the thread outlet 11a, 11
b and the slit 11c. Further, a long plate-shaped guide plate 14 is fixed to the inside of the front wall of the storage body 2 by screws 15 and nuts (not shown), and its upper edge protrudes slightly from the upper end of the front wall of the storage body 2. A guide hole 12a that can be closed together with the guide plate 12 is formed.

In front of the weft storage device 1, there is a first weft inserting nozzle consisting of a yarn guide 16, a weft gripping gripper 17 that opens and closes in synchronization with the weft insertion timing, and a weft insertion main nozzle 18 that also operates in synchronization with the weft insertion timing. In addition to being equipped with a weft insertion device,
A second weft insertion device consisting of a yarn guide 19, a gripper 20, and a main weft insertion nozzle 21 is arranged in parallel. And the thread drawer ports 11a, 11
The weft yarns Y1 and Y2 pulled out from b are introduced into the weft insertion main nozzles 8 and 21, and the weft insertion main nozzles 18 and 21 are switched to the weft insertion position based on the weft insertion pattern of the pair of weft yarns Y1 and Y2. , the weft yarns Y1 and Y2 are passed through both main nozzles 18 and 2 into a weft guide path S formed by a large number of weft yarn guide members 22 arranged in parallel on a slay (not shown).
Starting from 1, the exit weft insertion is performed according to the weft insertion pattern.

In addition, in this embodiment, the thread drawer ports 11a and 11b
The weft yarns Y1 and Y2 are pulled out slightly upwardly, and the weft yarn Y1 is pulled out while contacting the upper edge of the guide hole 12a corresponding to the yarn outlet 11a, and the weft yarn Y2 is pulled out from the slit 1.
The thread is pulled out while coming into contact with the upper edge of the guide hole 12a corresponding to the thread pull-out port 11b on the left side of the thread 1c. Therefore, by selecting an appropriate material to form the guide plate 12, the weft pull-out resistance can be set appropriately.

Now, during normal loom operation, the storage container is closed, and the stored weft Y1 on the weft adhesion storage surface 7a is pulled out while sliding left and right along the yarn drawing outlet 11a, and the stored weft Y1 on the weft adhesion storage surface 8a is pulled out. The weft yarn Y2 is pulled out while sliding from side to side along the yarn pulling outlet 11b on the left side of the slit 11c. In such a state, the intrusion of fluff is limited to only through the thread outlet 11a, 11b and slit 11c, and air is constantly jetted into the storage container from the storage nozzles 9, 10, so that the air inside the storage container is Thread drawer outlets 11a, 11b
Since the leakage occurs through the slit 11c, the intrusion of fluff into the container is reliably prevented. Therefore, the fluff adhesion on the weft attachment storage surfaces 7a, 8a is eliminated, and the fluff adheres to the weft yarns Y1, Y2 introduced into the weft inserting main nozzles 18, 21,
There is no risk of the weft being drawn into the weft 21, and clogging of the main nozzles 18, 21, which would cause weft insertion errors, or generation of weaving flaws due to weaving into the woven fabric is prevented.

If weft insertion error or weft breakage occurs,
In preparation for restarting the machine, the weft attachment storage surface 7a,
In order to adjust the weft storage state on the weft yarn 8a, it is sufficient to move the cover 11 upward to open the storage container as shown in FIG. At this time, the weft yarn Y1 inserted through the thread outlet 11a can be taken out to the outside through the slit 11c and the thread outlet 11b,
The work of adjusting the storage state of the weft yarn Y1 when the storage container is open can be started immediately, and the work efficiency is extremely good. Of course, the same can be said about the weft Y2.

Even when closing an open storage container, it is easy to insert the weft yarns Y1 and Y2 through the thread pulling ports 11a and 11b.
There is no need to perform the troublesome insertion work of inserting into 1a or 11b.

The present invention is of course not limited to the embodiments described above, and embodiments shown in FIGS. 3 to 10, for example, are also possible.

In both the embodiments shown in FIGS. 3 and 4, a pair of weft attachment and storage surfaces 7a and 8a are formed above and below as in the previous embodiment, but in the embodiment shown in FIG. Correspondingly, thread outlet ports 11a and 11b formed in the front wall of the cover 11 are independently communicated with the outside of the opening/closing section. Therefore, when moving the cover 11 upward to open the container, both wefts Y
1, Y2 can be prevented from becoming entangled. In FIG. 4, the weft yarns Y1 and Y2 are inserted and guided through small circular yarn withdrawal openings 11a and 11b that coincide in the vertical direction, making it easier to take out the weft yarns Y1 and 1Z when the storage container is opened.

In the embodiment shown in FIGS. 5 and 6, a weft storage device for storing only one weft yarn Y is housed in a storage container, and in FIG. 5, a storage nozzle 9, a driving and driven roller 3, A square box-shaped side frame 24 is fixed to the front surface of a support frame 23 that supports 5.
A cover 11 is connected to the front opening by a hinge 25 so as to be openable and closable. Note that the lower end of the cover 11 is fixed to the side frame 24 by a magnet or the like. And the same cover 11
A long hole thread outlet 11a is formed in the left and right direction, and a slit 11c is formed at right angles from one end of the thread outlet 11a.
is formed so that it communicates with the outside. In FIG. 6, a bifurcated support bracket 26 is fixed and suspended from the inner surface of the upper wall of the cover 11 similar to those in FIGS. There is. When the storage container is closed, the roller 27 is arranged so as to be in slight pressure contact with the weft adhesion storage surface 7a, and the weft Y that has been ejected from the storage nozzle 9 and adhered onto the weft adhesion storage surface 7a is disposed.
As the weft attachment storage surface 7a moves, the roller 27
The weft yarn is forcibly attached to the weft attachment storage surface 7a. As a result, the weft yarn Y is uniformly attached to the weft attachment storage surface 7a. When the storage container is opened, the roller 27 moves upward together with the cover 11 and separates from the weft attachment and storage surface 7a, making it easier to adjust the weft storage state.

In addition, when forming a thread pulling outlet for the weft thread to be pulled out from the weft attachment storage surface to which only one weft thread is attached, the thread drawing outlet 11b shown in FIGS.
A similar thread outlet may be provided.

In the embodiment shown in FIG. 7, a driving roller 3 and a driven roller 5 are arranged vertically, a weft adhesion storage surface 7a is formed in a vertical direction, and a support frame 23 has a pair of storage nozzles 9, 10. are supported through the weft yarns, and the two wefts Y1 and Y2 are attached and stored on the weft attachment and storage surface 7a. A side frame 24 is fixed to the front surface of the support frame 23, and a cover 11 is attached to the shaft 2 at the opening of the side frame 24.
It is rotatably connected around 8. The cover 11 has a pair of upper and lower small circular thread outlet ports 11.
slits 11c and 11d are formed to extend downward from their lower portions and then bend laterally to communicate with the outside.

In the embodiment shown in FIG. 8, the tip of the storage nozzle 9 passing through the fixed base 29 from below to the upper side is curved downward, and the disk 30 rotated by a drive device (not shown) is rotated around the fixed base 29. movably supported. An annular weft adhesion storage surface 30a is formed on the disk 30, and the tip of the storage nozzle 9 is directed toward the weft adhesion storage surface 30a. The storage main body 2 is connected to a fixed base 29, and a hemispherical cover 11 is removably fitted onto the main body 2, and a thread outlet 11b is provided on the cover 11 side at the opening/closing joint between the two. is recessed. That is, the weft Y ejected from the storage nozzle 9 is adhered and stored on the rotating weft adhesion storage surface 30a at a position corresponding to the thread withdrawal port 11b, and is pulled out from the thread withdrawal port 11b during weft insertion.

In the embodiment shown in FIGS. 9 and 10, a weft adhesion storage surface 31a is formed on the inner circumferential surface of the rotating cylinder 31, and the weft Y is transferred from the storage nozzle 9 disposed inside the cylinder 31 to the adhesion storage surface 31a. It is supposed to be squirted upwards. A disk 32 is tightened and fixed to the tip of a mounting arm 9a that protrudes in the axial direction of the cylinder 31 from the bent portion of the storage nozzle 9, and the peripheral edge of the disk 32 and the cylinder 31 are tightened and fixed. A gap 34 is formed therebetween as a thread outlet.

In addition, if the disc 32 is fitted to the mounting arm 9a so that the tip of the mounting arm 9a protrudes through the disc 32, and a snap ring or the like is fitted to the protruding end of the mounting arm 9a, the disc 32 can be easily removed. Easy to install and remove.

Effects of the invention As detailed above, in the present invention, the weft yarn adhesion storage surface is almost hermetically stored in a storage container equipped with a yarn outlet, so that it is possible to prevent fluff from adhering to the weft storage surface. It is possible to eliminate the clogging of fluff and the occurrence of weaving flaws in the main nozzle.
In addition, the thread outlet formed in at least one of the main body and the cover constituting the storage container is communicated with the opening and closing portions of both to the outside, so the weft can be easily taken out from the thread outlet when opened, and the weft can be taken out to the thread outlet when closed. It can be easily inserted through the weft yarn storage device, and has excellent workability such as adjustment of the weft storage state in the weft storage device.

[Brief explanation of drawings]

Figures 1 and 2 show an embodiment of the present invention, with Figure 1 being a perspective view showing the container in a closed state, Figure 2 being a perspective view showing the container in its open state, and Figures 3 to 8. are perspective views showing other examples of the present invention, Nos. 9 and 1.
Figure 0 shows another example, Figure 9 is a perspective view, and Figure 1 shows another example.
Figure 0 is a side sectional view. 2...Main body, 7a, 8a, 30a, 31a...
Weft attachment storage surface, 9, 10...Storage nozzle, 11
...Cover, 11a, 11b, 33... Thread outlet, Y, Y1, Y2... Weft.

Claims (1)

[Scope of utility model registration request] The weft ejected from the storage nozzle is attached and stored,
and a weft storage device including a weft adhesion storage surface that moves relative to the storage nozzle, wherein a storage device is configured from an openable/closable cover and a main body, and the weft adhesion storage surface is formed on at least one of the cover or the main body. A yarn drawing outlet is formed for guiding the weft yarn pulled out from the surface, and the yarn drawing outlet is communicated with the outside through an opening/closing part between the cover and the main body, and at least the weft yarn attachment storage surface is housed in the storage container. A weft storage device in a shuttle loom.