JPH0213053B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is applied to a jig guard machine in which the warp threads are selected by directly moving the warp needles using a solenoid based on an electric signal corresponding to a predetermined weaving pattern. This invention relates to a warp selection device.

<Prior art> Conventionally, in this type of jiya guard machine, tied paper made by punching holes based on the weaving pattern is connected in an endless band shape, and this endless tied paper is rotated intermittently. While guiding the paper to a cylinder that swings or reciprocates, the paper is fed one by one with each rotation of the loom and pressed against a group of horizontal needles, and the horizontal needles are selectively pushed depending on the presence or absence of punch holes formed in the paper. By doing so, the warp needles that interlock with each horizontal needle are removed from the knife, and the warp needles that are pulled up together with the knife are selected, and the warp threads inserted through the warp needles are selectively pulled up to perform warp shedding. ing.

However, in the case of a warp selection device that uses such shibori paper, it takes a lot of labor and cost to make the shibori paper, and it also takes a lot of effort to attach and remove the shibori paper to the jia guard machine. It is difficult to miniaturize the selection device using the loom, so it is unavoidable to increase the size of the loom. For this reason, various proposals have been made to select the warp threads as described above without using paper. A typical example is one in which each horizontal needle is directly driven by an actuator such as a solenoid based on a signal corresponding to the weave pattern.

<Problems to be Solved by the Invention> However, in the Jia Guard machine, the distance between each horizontal needle is about 4 to 5 mm at most, and a horizontal needle drive mechanism using the above-mentioned actuator is provided for each horizontal needle at this narrow interval. This is actually very difficult,
Furthermore, since a complicated drive mechanism is required for each horizontal needle, there is a problem in that the cost is significantly increased.

In addition, according to the above-mentioned conventional technology, although the mechanism around the horizontal needles can be considerably simplified, the vertical needle selection section using the horizontal needles is the same as the conventional technology, so the warp thread selection device still has to be larger. There are also problems.

<Means for Solving the Problems> The warp selection device in the jig guard machine of the present invention is provided with a solenoid near each warp needle that attracts the warp needle when energized, and these solenoids are connected to predetermined weave pattern information. On the basis of The gist is that the needle was moved in the direction away from the knife.

<Function> From the viewpoint of effectively using the existing device as is, research and development has been carried out to partially improve the conventional device described above, and to break away from the indirect warp selection method using horizontal needles. I couldn't. In view of this point, the present invention eliminates this method, which causes the device to become large and complicated, and replaces it with a method in which the required vertical needles are directly selected using a solenoid based on a signal corresponding to the weaving pattern. It was designed to be taken. In that case, if the vertical needle is directly driven by electromagnetic force from a solenoid, the driving part will become large or complicated, which is undesirable, and it will be difficult to apply it practically. Therefore, in the present invention, as described above, the solenoid for needle selection is fixed on the substrate, and the vertical needles for warp shedding, which do not require shedding movement, are attracted to this substrate by the electromagnetic force generated by energizing the solenoid, and then By moving the needles as described above, the vertical needles connected to the warp threads, which do not require shedding movement, are removed from the knife, thereby effectively eliminating the need for an increase in size and complexity of the device. It is something.

<Examples> Examples of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1, the claws 3a of the knives 2 are fixed to the knife box 1, which moves up and down with each revolution of the loom. A substrate 4 is provided so as to be sequentially reciprocated in the lower right and upper left directions in FIG. 1 by means of a driving means that does not require a drive means, at timings to be described later. As shown in FIG. 2A, on the vertical needle side of this board 4, three solenoids 5 are fixed with bolts or the like for each vertical needle, and are energized as appropriate based on a weave pattern information signal, which will be described later. Further, the electromagnetic attraction piece 5a on the outer periphery is close to or in close contact with the metal attraction piece 3b integrally attached to the vertical needle 3.

As shown in FIGS. 2B and 2C, this solenoid 5 is constructed by fixing the electromagnetic attraction pieces 5a to the upper and lower ends of a substantially cylindrical electromagnet 5b that generates electromagnetic force when energized. One end of the electromagnetic attraction piece 5a extends to the upper surface of the substrate and is fixed to the substrate 4,
The other end extends in the direction of the outer peripheral surface of the electromagnet. The solenoid 5 also uses a computer device or the like to read out a weave pattern information signal from a recording medium such as a magnetic tape or magnetic disk on which weave pattern information corresponding to a desired weave pattern is recorded, and sends this signal to a driver for driving the solenoid. The loom is energized as appropriate in conjunction with the rotation of the loom in a predetermined pattern to be described in detail below.

Next, an outline of warp selection in such a warp selection device will be explained with reference to FIGS. 3A to 3D.

First, when the solenoid 51 is selectively energized by a signal corresponding to predetermined textile pattern information from a solenoid drive driver (not shown), the electromagnetic attraction piece 51a is energized by the electromagnetic force generated by the solenoid 51. is attracted to the vertical needle 31. Next, the board 41 to which this solenoid 51 is fixed is attached to the vertical needle 31.
is detached from the knife 21 or moves in the right direction as shown in FIG. 3B, and the claw 31a at the top of the vertical needle no longer engages with the knife 21 at the next timing. Then, when the timing for the knife 21 to rise is reached, the corresponding solenoid (not shown) on the board is turned off to the vertical needle 3 that was not energized.
2 engages the knife 21 and rises upward as shown in FIG. The warp threads that have been selected are not selected and the warp shedding is performed. Further, at the timing when the knife 21 is raised, the energization of the solenoid 51a is cut off, and the vertical needle 31 returns to its original position as shown in FIG. 3D. After inserting the weft and closing the warp, the base plate 41 moves to the left in the drawing, and the knife 21 moves downward, returning to the stationary state shown in FIG. 3A. By sequentially performing the steps described above according to the weaving pattern, a fabric according to the pattern is woven.

FIG. 4 shows a part of another example of this invention, in which the substrate 1
The positions of the solenoids 81 to 93 provided on the vertical needles 61 to 73 are arranged so that a solenoid having a width larger than the distance between the vertical needles 61 to 73 can be used. That is, in this example, the solenoid 81 is placed on the board.
-93 are divided into three stages in the length direction of the vertical needles 61-73 so that they do not overlap each other above and below, and these solenoids 81-93 are arranged in the lower stage, middle stage, and upper stage sequentially from the left in the vertical needle installation direction. That's what I do.

<Effects of the Invention> As described above, according to the warp selection device in the jig guard machine of the present invention, the warp needles connected to the unselected warp threads are attracted to the solenoid, and the warp needles also knife the substrate to which the solenoid is fixed. Since the configuration is such that the needle is moved in a direction away from the needle, the conventional configuration using a horizontal needle can be completely abolished, and the device can be significantly downsized and simplified. In this way, the warp selection device of the present invention is extremely simplified, so that it can be used for long items, which was difficult not only in the conventional type using paper, but also in the type that uses a solenoid to drive the horizontal needles. It is also easy to weave. In addition, since the vertical needles are selected by electric signals based on weave pattern information corresponding to a predetermined weave pattern without using shibori paper, it is possible to select fabrics such as satin weave, brocade weave, danshi weave, or Saga nishikiori. It goes without saying that it is extremely easy to change the warp threads, and with a conventional warp selection device using horizontal needles, the warp thread selection device using a warp thread selection device using horizontal needles can change the
The limit of weaving was to operate around 1,800 vertical needles, but the device of the present invention has a simplified structure that eliminates horizontal needles, and can now weave 3,600 to 4,000, or even 10,000 to 10,000.
It is now possible to easily manipulate around 12,000 vertical needles, making it possible to weave using this number of vertical needles, and as mentioned above, each vertical needle
Since each book can be made independent and the warp threads can be manipulated freely, it has the advantage of making it possible to weave any type of structure within a single piece of crepe or obi.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of an apparatus according to an embodiment of the present invention, Fig. 2A is a sectional view showing the main parts of the embodiment, and Fig. 2B
is a cross-sectional view of the solenoid used in the example, Figure 2C
3 is a plan view of the solenoid, FIGS. 3A to 3D are explanatory diagrams of the operation of the embodiment, and FIG. 4 is an explanatory diagram showing the main parts of another example. 2...Knife, 3, 31, 32, 61-73...
... Vertical needle, 4, 10, 41 ... Board, 5, 51, 8
1-93... Solenoid.

Claims (1)

[Scope of Claims] 1. Solenoids are provided near each vertical needle to attract the vertical needle when energized, and these solenoids are activated based on predetermined weave pattern information to adjust the timing before the vertical needle movement knife rises. When the next warp thread is sheared, only the solenoids that are attracted to the warp needles connected to the unselected warp threads are energized, and the substrate to which these solenoids are fixed is moved in the direction in which the warp needles are removed from the knife. A warp selection device for a jiya guard machine. 2. The warp selection device for a jig guard machine according to claim 1, wherein the solenoid is provided at a position slightly shifted in the longitudinal direction of each vertical needle.