Yarn breakage detection device

Abstract

The utility model discloses a broken yarn detection device, which relates to the technical field of broken yarn detection and comprises an equipment shell, a sealing cover plate is mounted on one side of the equipment shell, a first roller and a second roller are rotatably mounted in the equipment shell, and a detection mechanism is arranged between the first roller and the second roller. The detection mechanism comprises a positioning sleeve fixedly mounted at the top of the equipment shell and a photoelectric switch fixedly mounted at the bottom of the equipment shell, a first spring is arranged in the positioning sleeve, a spring seat is movably mounted in the positioning sleeve, a telescopic rod is fixedly mounted at the bottom of the spring seat, and a roller frame is fixedly mounted on the telescopic rod; a detection roller is rotationally installed in the roller frame, and a brake mechanism is installed below the first roller and the second roller. According to the broken yarn detection device, the detection mechanism can detect whether the yarn is broken or not, the brake mechanism can brake the first roller and the second roller after the yarn is broken, and the situation that the yarn is wound and knotted in the equipment shell is prevented.

Description

Technical Field

[0001] This utility model relates to the field of yarn breakage detection technology, specifically a yarn breakage detection device. Background Technology

[0002] Spinning is the process of processing various fibrous raw materials into yarn, and it is a fundamental step in the textile industry. It mainly involves using mechanical or manual methods to draw and twist the fiber aggregate, causing the fibers to tightly bind together and form a continuous long sliver with a certain strength and luster. During the spinning process, the fibrous raw materials undergo processes such as opening, impurity removal, carding, drawing, roving, and spinning, gradually transforming from a disordered state into an orderly arranged yarn. These yarns then undergo twisting and doubling treatments to enhance their structural stability and strength, facilitating subsequent weaving or knitting processes.

[0003] During the spinning process, if the applied external force exceeds the yarn's ultimate tensile strength, the yarn will break. If a broken yarn is not detected and addressed promptly, it will significantly increase the scrap rate of the yarn products, resulting in substantial economic losses for the manufacturer. Currently available yarn breakage detection devices are typically bulky and complex, increasing costs and hindering their installation and operational efficiency due to size and structural limitations. Therefore, this paper proposes a yarn breakage detection device. Utility Model Content

[0004] The purpose of this invention is to provide a yarn breakage detection device to solve the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a yarn breakage detection device, comprising a device housing, a sealing cover plate installed on one side of the device housing, a first roller and a second roller rotatably installed inside the device housing, a detection mechanism provided between the first roller and the second roller, the detection mechanism comprising a positioning sleeve fixedly installed on the top of the device housing and a photoelectric switch fixedly installed on the bottom of the device housing, a first spring provided inside the positioning sleeve, a spring seat movably installed inside the positioning sleeve, a telescopic rod fixedly installed at the bottom of the spring seat, a roller frame fixedly installed on the telescopic rod, a detection roller rotatably installed inside the roller frame, and a braking mechanism installed below the first roller and the second roller.

[0006] Preferably, a baffle is fixedly installed at the bottom of the roller frame, and a protective cover is fixedly installed at the bottom of the equipment housing.

[0007] Preferably, the device housing has an inlet / outlet at the bottom center, and the baffle extends out of the device housing through the inlet / outlet.

[0008] Preferably, the telescopic rod is movably installed inside the positioning sleeve via a spring seat, one end of the first spring is connected to the bottom of the positioning sleeve, and the other end of the first spring is connected to the spring seat. The roller frame is movably installed inside the equipment housing via the telescopic rod, and the detection roller is movably installed between the first roller and the second roller via the roller frame.

[0009] Preferably, the braking mechanism includes a frame fixedly installed inside the equipment housing. The bottom of the frame has a movable hole, and a positioning guide rod is movably installed in the movable hole. A brake pad is fixedly installed at the upper end of the positioning guide rod. A second spring is sleeved on the positioning guide rod. An armature block is fixedly installed at the middle position of the bottom of the brake pad. An electromagnet is fixedly installed at the middle position of the bottom of the frame.

[0010] Preferably, a mounting groove is provided in the middle of the mechanism frame, and the electromagnet is mounted on the mechanism frame through the mounting groove, with the electromagnet and the armature block aligned vertically.

[0011] Preferably, the positioning guide rod is movably mounted on the mechanism frame through the movable hole, one end of the second spring is connected to the bottom of the brake pad, and the other end of the second spring is connected to the bottom of the mechanism frame.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this application, when the yarn breaks, the detection roller, originally supported by the yarn, loses resistance, causing the roller frame to continue moving downwards under the force of the first spring. At this time, the baffle, which was originally located inside the equipment housing due to the yarn obstruction, extends out of the housing. This extension of the baffle is detected by a photoelectric switch, triggering a stop signal to halt the operation and ensure the quality of the yarn products. Furthermore, this detection device has a small size, making it easy to operate and use.

[0014] 2. In this application, after the photoelectric switch sends a stop signal, the electromagnet is immediately de-energized, causing the second spring to reset. The reset second spring drives the brake pad to move upward, thereby contacting the edges of the first and second rollers. This contact applies resistance to the rollers, causing the first and second rollers to stop rotating quickly. This effectively prevents the broken yarn from moving randomly within the equipment housing, thus avoiding yarn tangling and knotting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the testing mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the braking mechanism of this utility model.

[0019] The following are the labeling elements in the diagram: 1. Equipment casing; 2. First roller; 3. Sealing cover; 4. Second roller; 5. Detection mechanism; 501. Positioning sleeve; 502. Roller frame; 503. Detection roller; 504. Baffle; 505. First spring; 506. Spring seat; 507. Telescopic rod; 508. Photoelectric switch; 509. Protective cover; 6. Braking mechanism; 601. Mechanism frame; 602. Brake pad; 603. Armature block; 604. Second spring; 605. Movable hole; 606. Positioning guide rod; 607. Electromagnet. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a yarn breakage detection device, including a device housing 1, a sealing cover plate 3 installed on one side of the device housing 1, a first roller 2 and a second roller 4 rotatably installed inside the device housing 1, a detection mechanism 5 provided between the first roller 2 and the second roller 4, and a braking mechanism 6 installed below the first roller 2 and the second roller 4. The detection mechanism 5 can detect whether the yarn is broken, and after the yarn breaks, the braking mechanism 6 can stop the first roller 2 and the second roller 4 to prevent the yarn from getting tangled and knotted inside the device housing 1.

[0022] like Figure 2 and Figure 3As shown, the detection mechanism 5 includes a positioning sleeve 501 fixedly installed on the top of the equipment housing 1 and a photoelectric switch 508 fixedly installed on the bottom of the equipment housing 1. A first spring 505 is provided inside the positioning sleeve 501. A spring seat 506 is movably installed inside the positioning sleeve 501. A telescopic rod 507 is fixedly installed at the bottom of the spring seat 506. A roller frame 502 is fixedly installed on the telescopic rod 507. A detection roller 503 is rotatably installed inside the roller frame 502. A baffle 504 is fixedly installed at the bottom of the roller frame 502. A protective cover 509 is fixedly installed at the bottom of the equipment housing 1. An inlet and outlet are opened at the middle position of the bottom of the equipment housing 1. The baffle 504 extends out of the equipment housing 1 through the inlet and outlet.

[0023] Specifically, the first spring 505 applies a downward thrust to the spring seat 506, which allows the telescopic rod 507 to extend from the positioning sleeve 501. Once the telescopic rod 507 successfully extends from the positioning sleeve 501, it further drives the detection roller 503 located on the roller frame 502 to move downwards. As the detection roller 503 descends, it encounters the obstruction of the yarn, causing the baffle 504 on the roller frame 502 to move accordingly and eventually be located inside the device housing 1. When the yarn breaks, the obstruction provided by the yarn disappears, and the detection roller 503 is no longer obstructed. The unobstructed detection roller 503 causes the first spring 505 to continue applying force, pushing the roller frame 502 to continue moving downwards. As the roller frame 502 descends further, the baffle 504 also extends outside the device housing 1. Once the baffle 504 extends outside the device housing 1, it is detected by the photoelectric switch 508. Once the photoelectric switch 508 detects the baffle 504, it immediately sends a stop signal, which triggers the equipment to stop operating. This ensures that the quality of the yarn-loaded products is not affected by yarn breakage, thus guaranteeing the stability of the entire production process and the quality of the products.

[0024] like Figure 2 and Figure 4 As shown, the braking mechanism 6 includes a mechanism frame 601 fixedly installed inside the equipment housing 1. The bottom of the mechanism frame 601 has a movable hole 605. A positioning guide rod 606 is movably installed in the movable hole 605. A brake pad 602 is fixedly installed at the upper end of the positioning guide rod 606. A second spring 604 is sleeved on the positioning guide rod 606. An armature block 603 is fixedly installed at the middle position of the bottom of the brake pad 602. An electromagnet 607 is fixedly installed at the middle position of the bottom of the mechanism frame 601. A mounting groove is opened in the middle position of the mechanism frame 601. The electromagnet 607 is installed on the mechanism frame 601 through the mounting groove, and the electromagnet 607 and the armature block 603 are vertically aligned.

[0025] Specifically, when the photoelectric switch 508 detects a specific signal and issues a stop command, it effectively controls the closing action of the electromagnet 607. Once the electromagnet 607 is closed, the second spring 604 immediately begins its reset process. The reset action of the second spring 604 causes the brake pad 602 to move upward, and the upward-moving brake pad 602 contacts the edges of the first roller 2 and the second roller 4. This contact allows the brake pad 602 to apply the necessary resistance to the first roller 2 and the second roller 4, thereby causing the two rollers to stop rotating immediately. The purpose of this design is to prevent the first roller 2 and the second roller 4 from continuing to drive the yarn to move disorderly inside the equipment housing 1 after the yarn breaks. In this way, the yarn can be effectively prevented from tangling and knotting inside the equipment housing 1, ensuring the safety of equipment operation and the cleanliness of the yarn.

[0026] Working principle: During use, the yarn is first pulled through the first roller 2, the detection roller 503, and the second roller 4 in sequence. The first spring 505 provides a downward thrust to the spring seat 506, causing the telescopic rod 507 to extend beyond the positioning sleeve 501. After the telescopic rod 507 extends beyond the positioning sleeve 501, it drives the detection roller 503 on the roller frame 502 to move downward. The downward-moving detection roller 503 is blocked by the yarn, so that the baffle 504 on the roller frame 502 is located inside the equipment housing 1. When the yarn breaks, the detection roller 503 will lose its obstruction. After the detection roller 503 loses its obstruction, the first spring 505 will continue to push the roller frame 502 to continue moving downward. After the roller frame 502 continues to move downward, the baffle 504 will extend beyond the equipment housing 1. The baffle 504 outside of the first roller 2 will be detected by the photoelectric switch 508. After the baffle 504 is detected by the photoelectric switch 508, a stop signal can be issued to stop the operation and ensure the quality of the yarn. After the photoelectric switch 508 issues a stop signal, it can control the electromagnet 607 to close. After the electromagnet 607 closes, the second spring 604 will return to its original position. After the second spring 604 returns to its original position, it will drive the brake pad 602 to move upward. The upward moving brake pad 602 will abut against the edge of the first roller 2 and the second roller 4, thereby applying resistance to the first roller 2 and the second roller 4, causing the first roller 2 and the second roller 4 to stop rotating immediately. This prevents the first roller 2 and the second roller 4 from causing the broken yarn to move freely inside the equipment housing 1, and prevents the yarn from getting tangled and knotted inside the equipment housing 1.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A yarn breakage detection device comprising a device housing (1) having a sealing cover plate (3) mounted on one side thereof, characterized in that: The first roller (2) and the second roller (4) are rotatably installed in the equipment shell (1), and a detection mechanism (5) is arranged between the first roller (2) and the second roller (4), the detection mechanism (5) comprises a positioning sleeve (501) fixedly installed on the top of the equipment shell (1) and a photoelectric switch (508) fixedly installed on the bottom of the equipment shell (1), a first spring (505) is arranged in the positioning sleeve (501), a spring seat (506) is movably installed in the positioning sleeve (501), a telescopic rod (507) is fixedly installed on the bottom of the spring seat (506), a roller frame (502) is fixedly installed on the telescopic rod (507), and a detection roller (503) is rotatably installed in the roller frame (502); and a brake mechanism (6) is installed below the first roller (2) and the second roller (4).

2. A yarn breakage detection device according to claim 1, characterised in that: The bottom of the roller frame (502) is fixedly installed with a baffle (504), and the bottom of the equipment shell (1) is fixedly installed with a protective cover (509).

3. A yarn breakage detection device according to claim 2, characterised in that: An inlet and outlet are formed in the middle of the bottom of the equipment shell (1), and the baffle (504) extends out of the equipment shell (1) through the inlet and outlet.

4. A yarn breakage detection device according to claim 3, characterised in that: The telescopic rod (507) is movably installed in the positioning sleeve (501) through the spring seat (506), one end of the first spring (505) is connected to the bottom of the positioning sleeve (501), the other end of the first spring (505) is connected to the spring seat (506), the roller frame (502) is movably installed in the equipment shell (1) through the telescopic rod (507), and the detection roller (503) is movably installed between the first roller (2) and the second roller (4) through the roller frame (502).

5. A yarn breakage detection device according to claim 4, characterised in that: The brake mechanism (6) comprises a mechanism frame body (601) fixedly installed in the equipment shell (1), an active hole (605) is formed in the bottom of the mechanism frame body (601), a positioning guide rod (606) is movably installed in the active hole (605), a brake pad (602) is fixedly installed on the upper end of the positioning guide rod (606), a second spring (604) is sleeved on the positioning guide rod (606), a armature block (603) is fixedly installed at the middle position of the bottom of the brake pad (602), and an electromagnet (607) is fixedly installed at the middle position of the bottom of the mechanism frame body (601).

6. A yarn breakage detection device according to claim 5, characterised in that: An installation groove is formed in the middle position of the mechanism frame body (601), the electromagnet (607) is installed on the mechanism frame body (601) through the installation groove, and the electromagnet (607) is aligned with the armature block (603) in the up-down direction.

7. A yarn breakage detection device according to claim 6, characterised in that: The positioning guide rod (606) is movably installed on the mechanism frame body (601) through the active hole (605), one end of the second spring (604) is connected to the bottom of the brake pad (602), and the other end of the second spring (604) is connected to the bottom of the mechanism frame body (601).

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