A large circular knitting machine with broken wire detection function

Abstract

This utility model discloses a circular knitting machine with a yarn breakage detection function. The machine includes a yarn feeding area and a yarn weaving area. The yarn feeding area is equipped with a weft feeder and a yarn breakage sensor (I). The yarn breakage sensor (I) is located near the weft feeder. At the entrance of the yarn weaving area, three yarn breakage sensors (II) are arranged in a circle with equal spacing. The two yarn breakage sensors (II) are connected to the machine via a connecting mechanism and are electrically connected by cables. A warning light is connected in series with each yarn breakage sensor (II) via these cables. When the yarn between the weft feeder and the yarn weaving area breaks and is not detected by the yarn breakage sensor (I), the weaving area weaves the broken yarn into the fabric. This broken yarn disappears from the yarn breakage sensor (II), and since the sensor (II) cannot detect it, a warning light illuminates, alerting the worker to adjust the yarn feed on the machine, thus increasing the probability of detecting a yarn breakage.

Description

Technical Field

[0001] This utility model relates to the textile field, and in particular to a large circular knitting machine with a broken thread detection function. Background Technology

[0002] A circular knitting machine consists of a frame, a yarn feeding mechanism, a knitting mechanism, a transmission mechanism, a lubrication and dust removal mechanism, an electrical control mechanism, a traction and take-up mechanism, and other auxiliary devices. The yarn feeding mechanism, also known as the yarn delivery mechanism, includes components such as a yarn rack, a yarn storage device, a yarn feeder, a yarn tray, and a yarn loop holder. The knitting mechanism is the heart of the circular knitting machine, mainly composed of components such as a cylinder, knitting needles, cams and cam seats (cam seats are also called saddles), and sinkers (only found on single-jersey knitting machines).

[0003] The yarn accumulator winds the yarn from the yarn bobbin onto its upper part, and the weaving mechanism then pulls the yarn out for weaving. At the same time as pulling out the yarn, the yarn accumulator releases the yarn and adjusts the yarn tension to prevent the yarn from breaking. A detector is usually installed in the yarn supply mechanism. When the yarn between the yarn accumulator and the weaving mechanism breaks, it will be detected by the detector, and a reaction will be made. However, during the yarn transport process, flying fibers will be generated, which will affect the detection of the detector and prevent it from detecting the broken yarn. Utility Model Content

[0004] The purpose of this invention is to provide a circular knitting machine with a yarn breakage detection function, which has the advantage of increasing the effectiveness of yarn breakage detection.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A circular knitting machine with a yarn breakage detection function includes a yarn feeding area and a yarn weaving area. The yarn feeding area is equipped with a weft feeder and a yarn breakage sensor 1. The yarn breakage sensor 1 is located near the weft feeder. At the entrance of the yarn weaving area of ​​the circular knitting machine, three yarn breakage sensors 2 are arranged in a circle and are evenly spaced. The yarn breakage sensors 2 are connected to the circular knitting machine through a connecting mechanism. The yarn breakage sensors 2 are electrically connected to cables, and warning lights are connected in series with the yarn breakage sensors 2 through the cables.

[0007] Using the above technical solution, the yarn passes through the weft feeder and enters the knitting area. The knitting area pulls out the yarn, causing it to rotate together with the knitting needles, and passes in front of the detection end of the yarn breakage sensor two. The rotating knitting needles, under the action of the triangular cam, undulate up and down to weave the yarn. When the yarn between the weft feeder and the circular knitting machine breaks and is not detected by the yarn breakage sensor one, the knitting area weaves the broken yarn into the fabric. This yarn disappears from in front of the yarn breakage sensor two, and the yarn breakage sensor two cannot detect the yarn, thus triggering a reaction. The warning light illuminates, reminding the worker to adjust the feed of the circular knitting machine, increasing the probability of yarn breakage detection and improving the yarn breakage detection effect.

[0008] Preferably, the connecting mechanism includes a screw, a mounting block, and a connecting block. The screw has a threaded end near its end and is threaded to a large circular knitting machine. The mounting block has a circular hole through which the screw passes and is slidably connected. A bolt is threaded to the mounting block, with the bolt head located in the circular hole and in contact with the screw. A bolt passes through the connecting block, and the bolt head of the connecting block is threaded to the mounting block. The yarn breakage sensor passes through the connecting block and is then fixed by another bolt.

[0009] Using the above technical solution, loosening the bolts between the screw and the mounting block can adjust the height of the yarn breakage sensor 2; loosening the bolts between the mounting block and the connecting block can adjust the angle of the yarn breakage sensor 2; loosening the bolts between the yarn breakage sensor 2 and the connecting block can adjust the distance between the yarn breakage sensor 2 and the yarn weaving area.

[0010] Preferably, the cable is a spring cable.

[0011] The above technical solution facilitates the movement of the second yarn breakage sensor. Attached Figure Description

[0012] Figure 1 This is an overall schematic diagram of the embodiment;

[0013] Figure 2 This is a top view of an embodiment;

[0014] Figure 3 This is a schematic diagram showing the connection between the yarn breakage sensor 2 and the circular knitting machine.

[0015] Attached reference numerals: 1. Circular knitting machine; 2. Weft feeder; 3. Yarn breakage sensor one; 4. Yarn breakage sensor two; 5. Cable; 6. Warning light; 7. Screw; 8. Mounting block; 9. Connecting block; 10. Bolt. Detailed Implementation

[0016] The following description is merely a preferred embodiment of this utility model, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of this utility model should be considered within the protection scope of this utility model. It should also be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

[0017] See Figures 1 to 3 A circular knitting machine with a yarn breakage detection function includes a circular knitting machine 1. The circular knitting machine 1 includes a yarn feeding area and a yarn weaving area. The yarn feeding area is equipped with a weft feeder 2 and a yarn breakage sensor 3. The yarn breakage sensor 3 is located near the weft feeder 2. At the entrance of the yarn weaving area of ​​the circular knitting machine 1, three vertical screws 7 are threadedly connected. The three screws 7 are arranged in a circle and are evenly spaced. Each screw 7 is fitted with a mounting block 8, which is slidably connected to the screw 7. A bolt is threadedly connected to the mounting block 8 at its connection with the screw 7. 10. The head of the bolt 10 contacts the screw 7. It also includes a connecting block 9 and a second yarn breakage sensor 4. The connecting block 9 is fitted with the bolt 10. The head of the bolt 10 on the connecting block 9 is threadedly connected to the mounting block 8. The second yarn breakage sensor 4 passes through the connecting block 9 and is slidably connected to the connecting block 9. The connecting block 9 is threadedly connected with the bolt 10 at its connection with the second yarn breakage sensor 4 to fix the second yarn breakage sensor 4. The second yarn breakage sensor 4 is electrically connected to a spring cable, and the second yarn breakage sensor 4 is connected in series with a warning light 6 through the spring cable.

[0018] Working principle: The yarn passes through the weft feeder 2 and enters the knitting area. The knitting area pulls out the yarn, causing it to rotate together with the knitting needles and pass in front of the detection end of the yarn breakage sensor 2 4. The rotating knitting needles move up and down under the action of the cam to knit the yarn. When the yarn between the weft feeder 2 and the circular knitting machine 1 breaks and is not detected by the yarn breakage sensor 3, the knitting area knits the broken yarn into the fabric. The yarn disappears in front of the yarn breakage sensor 2 4, and the yarn breakage sensor 2 4 can no longer detect the yarn, thus triggering a reaction. The warning light 6 lights up, reminding the worker to adjust the feed of the circular knitting machine 1, increasing the probability of yarn breakage detection and improving the yarn breakage detection effect.

Claims

1. A circular knitting machine with a yarn breakage detection function, comprising a circular knitting machine (1), the circular knitting machine (1) including a yarn feeding area and a yarn weaving area, the yarn feeding area being provided with a weft feeder (2) and a yarn breakage sensor (3), the yarn breakage sensor (3) being located near the weft feeder (2), characterized in that, The circular knitting machine (1) is equipped with three yarn breakage sensors (4) at the entrance of the yarn weaving area. The three yarn breakage sensors (4) are arranged in a circle and distributed at equal intervals. The yarn breakage sensors (4) are connected to the circular knitting machine (1) through a connecting mechanism. The yarn breakage sensors (4) are electrically connected to a cable (5), and a warning light (6) is connected in series with the yarn breakage sensors (4) through the cable (5).

2. The large circular knitting machine (1) with a broken wire detection function according to claim 1, characterized in that, The connecting mechanism includes a screw (7), a mounting block (8), and a connecting block (9). The screw (7) has a threaded end near its end and is threaded to the large circular knitting machine (1). The mounting block (8) has a circular hole, through which the screw (7) passes and is slidably connected. The mounting block (8) is threaded with a bolt (10), the head of which is located in the circular hole and contacts the screw (7). The connecting block (9) has a bolt (10) through it, and the head of the bolt (10) is threaded to the mounting block (8). The yarn breakage sensor (4) passes through the connecting block (9) and is then fixed by another bolt (10).

3. A large circular knitting machine (1) with a broken wire detection function according to claim 1, characterized in that, The cable (5) is a spring cable.

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