JPS5818448A - Weft yarn selector of loom - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention The present invention is a book about a weft selection device for a loom, which uses an electric storage device to select wefts at high speed and reliably, instead of the conventional dobby set or cam type selection system, to prevent weft breakage and work. This was developed with the aim of providing a high-performance product that can quickly and freely adjust the weft weaving when a weaving flaw is discovered by a worker.

The main types of weft yarn selection devices used for selective patterning of weft yarns in looms are cam type and dovetail sets. In the case of the cam type, weft selection is performed by mechanically assembling a cam, so there is a limit to weft selection, and only simple weft selection is possible. With the dobi set, it takes time to make the card, it is difficult to install it, and when weft trouble occurs, the weft pattern is out because the warp weave and weft selection are 1:2.
The weaving process is complicated. On the other hand, for weaving I11, shirt torqueless, air sheet, and water jet methods have been developed, and the weaving speed is becoming increasingly faster, but a weft selection device that can keep up with the speed has not yet been developed.Increasing the speed of patterned looms This had a great impact on the performance of the weft selection device.

The device of the present invention controls the weft pattern development based on a command in which the weft selection tdlb is generally stored, and at the same time, it is possible to arbitrarily adjust the weft weaving end when the weft breaks. The configuration for this purpose includes a detector equipped with a timing switch that outputs a signal once per rotation of the main shaft of the loom, a memory conversion device for storing the weaving pattern, and a refill from the storage device. This method is based on the adoption of a pulse subtraction circuit (when the big finder is in operation) that packs the loom and aligns the loom, and an address switch that aligns the weft threads when the weaving flaws are removed.

Hereinafter, the configuration of the present invention will be explained in detail with reference to the drawings.

As shown in Fig. 1, the weft selection device is composed of a detector, a memory device (2), and a memory converter (to), and it transfers a predetermined weaving pattern to the memory device by converting the memory to the memory converter (to). They are connected and stored in the order in which the wefts are selected. The storage device 4 stores the signals input from the detector I, one signal per rotation, and performs weft selection.

Specifically, the detector α℃ has a shape as shown in Fig. 2, and has one blade (to) of the timing switch (2) and the crankshaft α.
Tangled in power. The timing switch (to) is an oscillating type non-contact switch for detecting the number of passages of a blade (to) made of a metal plate, for example, and the crankshaft αη is one of the looms.
The weaving motion is characterized by one rotation, which makes it possible to match the color transitions more accurately than K, the so-called 10-match'. In the conventional jacquard type and dobby type, two wefts are fed in one rotation, which makes it extremely difficult to match the wefts.

Especially when weaving patterns with four twills, the twill openings will not come out unless the colors of the weft threads are matched all three times.Furthermore, matching the arrangement of the patterns takes an extremely long time. This will require some work. Since the detector of the present invention generates one pulse per rotation, the correspondence is clear and electrical control is facilitated.

The panel diagram of the storage device (6) is shown in Fig. 3, and the front panel ('a) has a weft selection number display (G), an address number display digital Q'J, an ARENU switch holder, and a power switch (RO). ), and the power cord (a) is located on the back panel.
, a detector connection cord (2) and a solenoid connection cord, such as a gripper operating solenoid of a loom.

The storage converter a1 has a keyboard (c), a power switch (e), and a connector as shown in Figure 4. Connect it to the storage device using the connector, turn on the switch (2), and press the buttons on the keyboard in order. By pressing the key, the weaving order is stored in the memory device K.

Next, the specific operation of this device will be explained using an example.

Once the weaving pattern is determined, a memory conversion device is connected to the storage device to memorize the repeating pattern of the pattern.
-4), when forming a pattern by repeating 4 red pieces (2-1 to 2-j) for the second color and 3 yellow pieces (3-1 to 3-3) for the third color, the pattern is shown in Figure 6. Yok, weft address 1-11
Set to . To set the address, connect the connector (2) of the storage device (b) K storage conversion device (to), turn on the switch (e), and set the first address to rA, 5.0TO, O, D.
When you press the buttons on the keyboard (E) in the order of J, the address display lamp (2) flashes, and when you press "A" next, the address display lamp - continues to light up. Second, “A, 1
,4. DJ, next Kr2.4. DJ, “3゜3, D, ni.
1. By pressing the DJ button, weft selection for weaving the weaving pattern shown in FIG. 5 is completed.

When the storage in the storage device (2) is completed in this way, the storage conversion device (to) is removed and the loom is operated.

During operation, the storage device stores the signal input from the detector Ql as the #/C1 signal for one rotation of the loom, and selects the weft yarn, that is, in the case of FIG. 5, the address diagram shown in FIG. 6 is used. The weft types are 1 for white, 2 for red, and 3 for yellow. For each of the wefts, when the first color of four wefts is completed, a control signal is sent from the storage device and the second color, red, is inserted. When the four red colors are completed, a control signal is issued again, and the third color, six yellow colors, is driven in. When that is completed, a control signal is issued, and the next four white colors are driven in.

Figure 7 is an address diagram showing the relationship between the type of weft and the number of wefts in the case of weaving with eight types of weft.The pattern weaving involves one round of weft with 27 wefts, but the method is , is exactly the same as that shown in Figure 6. In this way, by simply storing the weft address in the memory device, the loom's rapier and gripper are automatically operated quickly and accurately according to the output of the detector, and the set weaving pattern is created. It is.

By using the detector, storage device, and storage conversion device of this device, it becomes extremely easy to match the weft threads when a weft breakage or weaving flaw is discovered.

In the case of weft breakage, the loom stops on the spot, but the signal from the detector (b) has already been output for 1 parnu. In addition, when operating the loom again, the storage device must also subtract one pulse in order to pack one rotation with the big finder of the loom.The opening of the warp thread and the opening of the weft thread will match, and then the storage device will automatically I devised a way to operate an additional IJ wire wire when the big finder is in operation, and to put the contact signal into the memory device υ and subtract it to match the warp and weft threads. In addition, when the backfolder is operated twice, one additional relay is operated twice in the same way as in the book, and the signal is stored in the storage device and 2 pulses are subtracted.

If a weaving cloth is found during weaving, the worker must find a place where there is no weaving cloth and untie it.

At this time, the warp and weft cannot be matched unless the storage device 41 of the weft selection device matches the unraveled location.

This problem can also be easily solved by this device, and the storage device QaKm is equipped with an address switch (1) to automatically return to that address all at once.

Fig. 8 is a plan view of the fabric including weaving flaws (7); in this case, from yellow 3-1, i.e., address 9, if enters If, white 1-2 (Atrea 2), there is a flaw; This is an example in which weaving was completed until Red 2-4 (address 8) and then weaving was discovered. To return the weft selection, use White 1-
2 (address 2), so if you set the address of the storage device (6) to "2" and turn on the address switch,
The weft selection device automatically returns to "White 1-2". In this way, by setting the address with an arbitrary set number, it is possible to return the weft selection to any position.

As described in detail above, the weft selection device of the present invention uses a combination of a one-per-rotation one-palme detector, a storage device, and a storage conversion device instead of the conventional jacquard or dobby. This resulted in a high-speed detection capability that far surpassed the current maximum speed of a loom, which was 1,000 rotations per minute. Therefore, with a conventional dobby, 24
This device solves the problem of the machine not being able to weave pattern patterns to its full capacity on a V-yattle-less high-speed loom because the weaving cycle stopped at 0 times per minute.

[Brief explanation of the drawing]

FIG. 1 is a flowchart of the weft selection device, FIG. 2 is a perspective view of the detector, and FIG. 6 is a panel diagram of the storage device, where (a) is the front side and (b) is the back spring p. FIG. 4 is a panel of the storage conversion device. Fig. 5 is a plan view showing an example of a weaving pattern of a fabric, Fig. 6 is an address diagram showing the relationship between the type of weft thread and the number of weft threads in that case, and Fig. 7 shows another example. It is an address diagram. FIG. 8 is a plan view of a fabric with a weave. 01) Detector @ Storage device (To) Memory conversion device (To) Timings I (2) Weft selection number display Handle Address number display digital (E)
Address switch (E) Keyboard (C) Address display lamp (2) Additional relay (7) Applicant Doi Shoten Co., Ltd. :-t:.

Claims (1)

[Claims] 1 A detector equipped with a timing switch that outputs a signal once per rotation of the main shaft of the loom, a memory converter and a memory device for memorizing the weaving pattern, and the memory device is used to subtract pulses when the pick finder operates. A weft selection device for a loom, characterized in that an additional relay for the address pack and an address switch for the address pack are added.