KR200247149Y1 - Sensor for warp's cutoff with heald and heald-rod - Google Patents

Abstract

The present invention relates to a device for automatically detecting the cutting of warp yarns when weaving by a loom, and is a heald rod attached to a heald to hang a heald. The mechanical relationship between the heald-rod, the heald for sewing the warp, and the weaving motion between the warp, which forms the fabric, is used.When the warp is broken, the heald and the top heald-rod and the lower heald rod are used. It is aimed to stop the loom automatically when the bottom heald-rod comes into contact with each other.

To this end, the heald (2) is fastened to the heald rods (1a, 1b) of the metal installed on the upper and lower healds (6), but the upper heald rod (1a) is insulated coating (102) on both sides and the lower surface only the upper surface (101) When the slope is broken, the upper heald rod 1a, the heald 2, and the lower heald rod 1b are in contact with each other. Configure to

With the above configuration, the loom can detect the cutting of the warp accurately and stop, thereby significantly reducing the defective rate of the fabric and increasing the production efficiency at the same time as the conventional dropper type, rotary brush type, and infrared floodlight type sensing devices. Has

Description

Sensor for warp's cutoff with heald and heald-rod

The present invention relates to a device that can automatically detect the inclination cut during weaving in the loom, and more specifically, when the inclination of the heald is broken, the heald that falls due to the inclination of the inclination falls and the top of the heald Is in contact with the upper surface of the upper heald rod, and the bottom of the heald is in contact with the side of the lower heald rod, and when the power is supplied to the device to stop the loom automatically.

Conventionally, a dropper device, a rotary brush type sensor, or an infrared light emission detector is used as a means for detecting an oblique cut.

The dropper detector has a drop-pin on every slope. When the slope breaks, the drop pin falls and the dropper bar comes into contact with the dropper-bar. In addition, this device is cumbersome because it must be pinned every thousand or tens of thousands of inclinations, and the skilled workers have to stay in place and invest their labor to plug the pins at least four hours or more than eight hours. Severe and less concentrated, with increased labor costs and reduced production efficiency, and during weaving, the warp and drop pins cause continuous deterioration of the fabrics due to warp, which leads to deterioration of the fabric. Are causing more causes.

A rotating brush is installed between the heald and the back rest 7 so that the broken thread is wound around the brush, and a current flows through the brush, and a flood detector is installed into the opening 301. There is a method to detect the inclination cut by shooting the two methods, which are well sensed that the thread breaks and hangs down in place. Actually, the inclination of the weaving is pulled flat so that the inclination is backrest due to the tension of the thread. (7) In many cases, the sensor will not detect the cut thread because it will bounce backwards or entangle with adjacent slopes. In this case, the looms continue to operate without stopping and produce a large amount of defective products by forming fabrics with the exception of the inclined oar, but there are no special measures, so they rely only on the meticulous attention of skilled workers.

The purpose of the present invention is to insulate the side and the bottom of the upper heald rod, if the inclination is broken, the upper end of the heald is in contact with the upper surface of the upper heald rod, the lower end of the heald is in contact with the side of the lower heald rod, By allowing it to stop automatically, the conventional dropper type detection device can eliminate the cause of warp and incline caused by its own problems, and it is not necessary to insert the drop pin on the incline of tens of thousands of times. To reduce productivity, effort, expense, and increase quality, and to improve productivity by solving the chronic problems of low-efficiency detection and mass production of conventional rotary brush type and floodlight detection devices. to be.

1 is a perspective view of a state in which a bevel is hung on a heald rod;

Figure 2 is a schematic side view showing the weaving process of the loom

3 is an exemplary view of the insulation coating of the upper heald rod

4 is an exemplary view showing a state in which the inclination is not broken in the inclined heald frame;

5 is an exemplary view in a case where the inclination is broken in the inclined heald frame

6 is a view illustrating the configuration and operation of a current control switch

7 is an exemplary view showing the electrical connection between the current control switch and heald light rod

FIG. 8 is an exemplary view showing a case where the inclination is broken in a state in which the contact guide rod is not installed in the vertical heald frame. FIG.

9 is an exemplary view in which a contact induction rod and a current control switch are installed in a vertical heald.

10 is an exemplary view showing a case where the inclination is not broken in the state in which the contact guide rod is installed in the vertical heald frame;

Figure 11 is an exemplary view showing a case where the inclination is broken in the state in which the contact guide rod is installed in the vertical heald frame

Figure 12 shows various forms of heald and heald rod

<Description of the code | symbol about the principal part of drawing>

1a: upper heald rod 101: upper surface of the upper heald rod

1b: lower heald rod 102: insulation coating 103: contact guide rod

2: heald 201: inclined hole of heald

3: inclined 202: electrical contact at the top of the heald (hereafter referred to as the heald)

4: current control switch 203: electrical contact at the bottom of the heald (hereinafter 'lower hex')

5: 204: heald rod insertion groove of heald

6: heald frame 301: opening 401: electrode for current supply

7: Backrest 402: Electrical connection between heald rod and current control switch

The present invention uses the heald (2) and the two heald rods (1a, 1b) hanging on the heald to solve the above problems, in spite of the physical contact when the inclination is not broken and normal operation When it is separated (FIG. 4) and the slope is cut off, it is electrically connected (FIG. 5) only when it is energized and configured to stop the loom automatically. Same as

As shown in FIG. 1, all the healds 6 have one heald rod 1a and 1b respectively in the upper and lower portions of the heald to hang the heald 2, and as shown in FIG. The side and bottom surfaces of 1a) are insulated (102) to expose only the top surface (101) to allow electricity to pass through, and the lower heald rod (1b) can be energized on all four sides without insulation coating. In order to apply a different electrode to the upper and lower heald rods, the current flows from the upper heald rod 1a to the heald 2 and the lower heald rod 1b.

In the weaving motion of the loom as shown in FIG. 2, the heald frame 6 hanging the heald 2 repeats the up and down reciprocating motion alternately with the adjacent heald frame according to the fabric structure to form the opening 301. The idea of the present invention lies in the mechanical relationship between the heald (2), the inclination (3) and the heald rods (1a, 1b) during the up and down reciprocating motion. When weaving, the warp yarn 3 is tensioned to prevent the sagging of the yarn, and weaving is carried out in a very tight state. When the heald frame 6 is in the lower position 602, the warp yarn 3 When pulled downward by the heald (2), the reaction force due to the inclination of the tension is applied to the heald (2) on which it is bent so that the heald is forced upward and thus has a constant height (Δh) as shown in FIG. It is lifted up as much as it is due to the difference between the installation interval of the upper and lower heald beams and the upper and lower gaps of the heald rod insertion grooves.

[Equation 1]

Δh = h1-h2

In Equation 1, h1 is a distance from the upper end of the upper heald rod 1a insertion groove 204 of the heald to the lower end of the lower heald rod 1b insertion groove as shown in FIG. 12, and h2 is the upper heald rod 1a. ) The distance from the top to the bottom of the lower heald rod 1b. At this time, when the inclination 3 is broken, the seed light 2 falls down by Δh.

The loom has a vertical type that is designed to install the heald frame vertically in the installation of the heald frame 6 according to the type, and the heald frame is inclined at about 1 ° to 3 ° in front of the loom. It is divided into inclined shape that is manufactured to be installed.

In the warp loom, even if the heald 2 is lifted by the tension of the inclination 3, the heald 2 is always in contact with the inclined opposite side of both sides of the heald rod as shown in FIG. In order to use only the upper surface 101 of the upper heald rod 1a as an electrical contact when it is broken, the side surface of the upper heald rod 1a must be insulated to be used as an inclination cut detection device. Therefore, in the present design, the upper and lower surfaces of the upper heald rod 1a are firmly coated with an insulating material so that only the upper surface 101 is electrically conductive (FIG. 3). The lower heald rod 1b is not insulated coated on all four sides to maintain contact at all times, and the heald is always inclined by 1 to 3 ° in front of the loom so that the contact is easily made. .

In this state, when the heald 2 is fastened to the heald rods 1a and 1b and the inclination 3 is connected to the inclined holes 201 of the heald, the loom is operated, the inclination 3 is not broken and is in normal operation. In the case, as shown in FIG. 4, the seed light upper end 202 floats from the upper seed light rod upper surface 101 by the inclination tension, and when the slope is broken, the seed light 2 falls down as shown in FIG. In contact with the top surface 101 of the rod. At this time, the lower heald ends 203 are already in contact with the side of the lower heald rod 1b due to the inclination of the heald, so that the loom stops through the current at the instant when the heald upper end 202 contacts the upper heald rod upper surface 101. It is likely that the loom will not be able to operate in this state.

The state of the heald on the heald rod when the heald is in the upper position 601 is the same as the state of the heald on the heald rod when the heald is broken at the lower position 602. (FIG. 4). That is, when the inclination is broken, the heald falls down and hangs on the upper surface 101 of the upper heald rod. When the heald reaches the upper level, all healds in the heald are not on the upper heald rod, even if the inclination is not broken. If the current flows even when the heald is at the upper position, the loom will stop.

Therefore, a separate control means is required to stop the loom when the heald is at the upper level and stop only when the heald is at the lower level. According to the present invention, when the heald frame 6 is at the upper value 601, a current is applied. A current controlled switch is provided so that it can selectively supply current only when it is in the lower value 602, without supplying.

For example, as shown in FIG. 6, two conductive rods are installed at the bottom of the heald frame 6 to electrically connect the upper heald rod 1a and the lower heald rod 1b to the top of the rod as shown in FIG. 7. 402, the lower end is provided with a current control switch (4) that can supply the current by contacting the electrode 401 only when the heald frame (6) reaches the lower value (602). That is, as shown in FIG. 6, when the heald frame is out of the lower value, the contact is immediately disconnected, and when the heald lowers to the lower value, the contact is made again, thereby selectively controlling the supply of current according to the position of the heald frame. This prevents the machine from stopping when it is at the same time and allows for accurate detection of the cutting of the bevel when the heald is at the lower level 602.

In the vertical loom, when the inclination 3 is broken, as shown in FIG. 8, the upper end 202 of the heald 2 is in contact with the upper surface 101 of the upper heald rod 1a as in the inclined loom. Since the lower end 203 of the vertical frame is vertical, the contact with the lower vertical light rod 1b is not easy, so if the sensing device is operated in this state, the detection efficiency is very low. The contact induction rod 103 is installed on one side of the bottom of the heald as shown in the figure, so the shape of the bottom of the heald is round or oblique so that when the heald falls, the sliding guide rod 103 slides toward the lower heald rod 1b. To make contact easier. In addition, as shown in FIG. 7, the same electrode as the lower heald rod 1b was also applied to the contact induction rod 103 to completely eliminate the possibility of contact failure. The configuration of the upper heald rod 1a was applied in the same way as the warp loom and the current control switch 4 was connected as in the warp loom so that the cutting of the warp 3 was accurately detected.

Therefore, when the loom is operated in the configuration according to the present invention, when the inclined 3 is not broken and is in normal operation, even when the heald frame reaches the lower level, the heald ends 202 by the inclination tension as shown in FIGS. 4 and 10. ) Floats from the upper heald rod top surface 101 (Δh), and when the inclination is broken, the heald 2 falls down and contacts the upper face 101 of the upper heald rod as shown in FIGS. 5 and 11. The lower heald end 203 is already in contact with the lower heald rod by the inclination of the heald frame in the inclined loom, and the lower heald rod 1b by the contact guide rod 103 in the vertical loom. In this case, when the heald frame reaches the lower value 602 and the current is supplied to the current control switch 4, the loom stops.

That is, in the present invention, in the state where the inclination is not cut, despite the contact between the heald rod and the heald, ① current is supplied from the power supply when the heald frame is at the lower level, but the side of the upper heald rod is insulated, and thus, is not energized. When the heald is in the upper position, the machine will operate normally because no current is supplied from the power source. ③ When the inclination of the slope and the heald are in the lower position, the machine will be energized and the loom will stop. It is a device that can accurately detect the break of the inclination, which is an inclination cut detection means using a heald.

As described above, the present invention compensates for all the disadvantages of the conventional inclination cutting detection devices to accurately detect the break of the inclination, and also eliminates the inconvenience of having to manually insert the drop pin manually as in the conventional dropper device. This can greatly reduce the labor force, and can significantly reduce the warp and incline cutting due to the friction with the drop pin, and also produce a large amount of defective products due to poor sensing efficiency as in the rotary brush type sensor or the infrared flood detector. Can be completely eliminated.

The present invention is not limited to the embodiment, so it is applicable to all looms regardless of the shape of the heald or heald, and therefore, by changing the shape or installation position of heald, heald rod, contact induction rod, current control switch, etc. Can not escape the gist of the present invention.

Claims (2)

In the configuration of the heald frame 6 of the loom, both the upper and lower heald rods 1a and 1b, which are means for hanging the heald 2, use a conductive metal, and the double upper heald rod 1a has both sides. The upper and lower surfaces are insulated coating 102 so that only the upper surface 101 can be energized, and the lower heald rod 1b is capable of energizing all four sides without insulation coating, and an optional current control switch according to the upper and lower positions of the heald frame ( 4) attached, the upper end of the heald 202 and the upper surface 101 of the upper heald rod are in contact, and at the same time the lower heald end 203 and the lower heald rod 1b are in contact, and the current control switch 4 and the electrode 401 ) Is inclined cutting detection device characterized in that the inclined cutting detection means. The inclination cut detection device according to claim 1, wherein the inclination cut detection device is characterized in that the induction cutting bar 103 is installed on one side of the bottom end of the heald for the vertical loom.