Intelligent yarn breakage detection and stop device for single-jersey circular knitting machine

Abstract

The utility model discloses a single -sided knitted large circular knitting machine intelligence yarn breakage detection and shutdown device relates to textile equipment technical field. The yarn breakage detection device includes the frame, and the top fixedly connected with the creel of frame, and the inside installation of frame has the broken line detection subassembly, and the broken line detection subassembly includes the light shield frame, and the top fixed mounting of light shield frame is in the frame, and the inside installation of light shield frame has the fixed plate, and the inside rotatable connection of fixed plate has the wire wheel, and the outer wall of wire wheel is wound with the yarn, and the inside installation of fixed plate has the light signal detection device. The utility model discloses through setting up a plurality of light signal detection devices in the fixed plate, and the dynamic detection logic is formed when the yarn moves and blocks the light signal, and when all light signal receiving devices receive the light signal synchronously, judge as yarn breakage, trigger control terminal intelligent shutdown, and the light signal is blocked and is commonly composed to a plurality of yarns, avoid the accidental shutdown when the yarn is not broken.

Description

Technical Field

[0001] This utility model relates to the field of textile equipment technology, specifically to an intelligent yarn breakage detection and shutdown device for a single-sided circular knitting machine. Background Technology

[0002] As a core piece of equipment for the efficient production of knitted fabrics, the operational stability of a single-sided circular knitting machine directly affects product quality and production efficiency. Yarn breakage is a key bottleneck restricting its continuous production, so a yarn breakage detection and shutdown device is needed to detect yarn breakage.

[0003] For example, patent publication number CN208038710U, entitled "An Automatic Stop Detection Device for Yarn Breakage on a Circular Knitting Machine," includes a yarn roll, a yarn frame, a main support, an electrical junction box, and a detection box. The yarn roll is vertically installed on the top of the yarn frame, and the vertical plate of the yarn frame is nested and connected to the top horizontal plate of the main support. The electrical junction box is fixed at the angle between the yarn frame and the main support. The detection box is riveted to the front end of the vertical plate of the main support. A guide reel is installed at the bottom of the yarn roll, and a rotating shaft is installed at the bottom of the guide reel. An anti-slip sleeve is nested on the top of the rotating shaft. By connecting the various components in the detection box to an alarm and a recording module, the machine can be stopped and an alarm can be triggered as quickly as possible after the yarn breaks. At the same time, the operation log is recorded in the recording module for easy maintenance.

[0004] The yarn pulls on the conductor sleeve, causing the inductor module to detach from the pressure sensor. When the yarn breaks, the inductor module springs back. The friction generated by the moving yarn exerts a force on the conductor sleeve, causing the inductor module to move. However, this process is unstable and slippage may occur. This could lead to the inductor module springing back even before the yarn breaks, causing unexpected machine shutdowns and affecting the production efficiency of the single-jersey circular knitting machine. To address this, an intelligent yarn breakage detection and shutdown device for single-sided circular knitting machines is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an intelligent yarn breakage detection and shutdown device for a single-sided circular knitting machine, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an intelligent yarn breakage detection device for a single-sided circular knitting machine. The yarn breakage detection device includes a frame, a yarn rack is fixedly connected to the top of the frame, and a yarn breakage detection component is installed inside the frame. The yarn breakage detection component includes a light-shielding frame, which is fixedly installed at the top of the frame. A fixing plate is installed inside the light-shielding frame, and a guide wheel is rotatably connected inside the fixing plate. Yarn is wound around the outer wall of the guide wheel, and the guide wheel guides the yarn. A light signal detection device is installed inside the fixing plate.

[0007] Preferably, the optical signal detection device includes an optical signal transmitting device and an optical signal receiving device, with the optical signal transmitting device fixedly installed on one side of the fixed plate and the optical signal receiving device fixedly installed on the other side of the fixed plate.

[0008] Preferably, the bottom end of the light-shielding frame is rotatably connected to a sealing cover, and the top end of the sealing cover is equipped with a buckle device for restricting the rotation of the sealing cover.

[0009] Preferably, a guide wheel is rotatably connected to the top of the frame, and an automatic tensioning device is installed at the top of the frame.

[0010] Preferably, a take-up drum is installed at the top of the yarn frame, and yarn is wound around the outer wall of the take-up drum.

[0011] A smart yarn breakage shutdown device for a single-sided circular knitting machine is provided, which adopts the aforementioned smart yarn breakage detection device for a single-sided circular knitting machine. The shutdown device includes a yarn breakage detection device and a control terminal, which are electrically connected. The control terminal is electrically connected to a power-off device for stopping the single-sided circular knitting machine.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This intelligent yarn breakage detection and shutdown device for a single-sided circular knitting machine uses multiple optical signal detection devices installed inside a fixed plate. When the yarn moves, it blocks the optical signal to form a dynamic detection logic. When all optical signal receiving devices receive the optical signal simultaneously, it is determined that the yarn is broken, triggering the control terminal to intelligently stop the machine. Moreover, the blocking of the optical signal is composed of multiple strands of yarn, avoiding unexpected shutdowns when the yarn is not broken.

[0013] Meanwhile, the device integrates a frame, yarn rack, light shield, and fixing plate, and combines an automatic tensioning device and guide wheels to achieve stable yarn winding and reduce detection errors. This solution directly transmits yarn breakage signals through optical signals, reducing wear on mechanical parts, extending equipment life, and shortening yarn breakage response time to ensure continuous production. Attached Figure Description

[0014] Figure 1 This is an isometric drawing of the yarn breakage detection device of this utility model; Figure 2 This is a partial cross-sectional view of the yarn breakage detection device of this utility model; Figure 3 This is an internal view of the wire breakage detection component of this utility model; Figure 4 This is a schematic diagram of the yarn breakage stop device of this utility model.

[0015] In the diagram: 1. Frame; 2. Yarn frame; 3. Thread breakage detection component; 301. Light shield; 302. Fixing plate; 303. Guide wheel; 304. Optical signal detection device; 4. Guide wheel; 5. Automatic tensioning device. Detailed Implementation

[0016] 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.

[0017] like Figure 1 - Figure 4 As shown, this utility model provides a technical solution: an intelligent yarn breakage detection device for a single-sided circular knitting machine. The yarn breakage detection device includes a frame 1, a yarn frame 2 fixedly connected to the top of the frame 1, and a yarn breakage detection component 3 installed inside the frame 1. The yarn breakage detection component 3 includes a light-shielding frame 301, which is fixedly installed at the top of the frame 1. A fixing plate 302 is installed inside the light-shielding frame 301. A guide wheel 303 is rotatably connected inside the fixing plate 302. Yarn is wound around the outer wall of the guide wheel 303. The guide wheel 303 guides the yarn, causing the yarn to travel along the outer wall of the guide wheel 303 and change its direction. The yarn passes back and forth through the interior of the fixing plate 302 under the guidance of several guide wheels 303. A light signal detection device 304 is installed inside the fixing plate 302.

[0018] The optical signal detection device 304 includes an optical signal transmitting device and an optical signal receiving device. The optical signal transmitting device is fixedly installed on one side of the fixed plate 302, and the optical signal receiving device is fixedly installed on the other side of the fixed plate 302.

[0019] The bottom end of the light-shielding frame 301 is rotatably connected to a sealing cover 305, and the top end of the sealing cover 305 is equipped with a buckle device for limiting the rotation of the sealing cover 305.

[0020] A guide wheel 4 is rotatably connected to the top of frame 1, and an automatic tensioning device 5 is installed at the top of frame 1.

[0021] A take-up drum is installed at the top of the yarn frame 2, and yarn is wound around the outer wall of the take-up drum.

[0022] A smart yarn breakage shutdown device for a single-sided circular knitting machine is provided. The device employs the aforementioned smart yarn breakage detection device for a single-sided circular knitting machine. The shutdown device includes a yarn breakage detection device and a control terminal. The yarn breakage detection device and the control terminal are electrically connected. The control terminal is electrically connected to a power-off device for stopping the single-sided circular knitting machine.

[0023] The take-up spool with the yarn wound on it is placed on the yarn rack 2, so that one end of the yarn passes through the guide wheel 4 and the automatic tensioning device 5, and is fed into the single-sided circular knitting machine through the yarn breakage detection component 3. During the yarn feeding process, the yarn breakage detection component 3 will continuously detect the yarn.

[0024] The yarn is wound around a guide wheel 303, which changes the direction of the yarn. Several guide wheels 303 are rotatably connected inside a fixed plate 302. Through the action of these guide wheels 303, the yarn continuously passes back and forth through the interior of the fixed plate 302. Simultaneously, several optical signal detection devices 304 are fixed inside the fixed plate 302. The optical signal emitting device emits an optical signal, and the optical signal receiving device receives the optical signal. This causes the yarn to move back and forth within the fixed plate 302, effectively preventing the yarn from blocking the optical signal and thus allowing the optical signal to pass through. If the receiving device cannot receive the light signal, and to ensure the accuracy of yarn breakage detection, multiple light signal detection devices 304 are installed. If multiple light signal receiving devices receive the light signal, it indicates a yarn breakage. At this time, the light signal receiving devices transmit the received light signal information to the control terminal. The control terminal analyzes the received light signal to control the shutdown of the single-sided circular knitting machine. When multiple light signal receiving devices receive the light signal, the control terminal sends a signal to the power-off device, which disconnects the power supply to the single-sided circular knitting machine, thereby stopping the machine. The circular knitting machine is stopped by multiple optical signal detection devices 304 installed within the fixed plate 302. As the yarn moves, it blocks the optical signals, creating a dynamic detection logic. When all optical signal receivers simultaneously receive the signal, a yarn breakage is detected, triggering an intelligent shutdown at the control terminal. Furthermore, the blocking of the optical signals is achieved by multiple strands of yarn, preventing unexpected shutdowns when the yarn is not broken. This device is integrated through the frame 1, yarn frame 2, light-blocking frame 301, and fixed plate 302, combined with the automatic tensioning device 5 and guide wheel 4 to achieve stable yarn winding and reduce detection errors. This solution directly transmits the yarn breakage signal via optical signal. The signal reduces wear on mechanical parts, extends equipment life, and shortens the yarn breakage response time, ensuring continuous production. During yarn input, the guide wheel 303 rotates with the movement of the yarn, guiding it to pass back and forth through the fixed plate 302 along a preset path. This ensures that multiple strands of yarn are stably blocked between the optical signal transmitter and receiver. When the yarn breaks, the guide wheel 303 loses the traction of the yarn and stops rotating. The corresponding optical signal receiver receives the optical signal synchronously, and the control terminal determines the yarn breakage and triggers a shutdown.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. An intelligent yarn breakage detection device for a single-sided circular knitting machine, characterized in that: The yarn breakage detection device includes a frame (1), a yarn rack (2) is fixedly connected to the top of the frame (1), and a yarn breakage detection component (3) is installed inside the frame (1). The yarn breakage detection component (3) includes a light-shielding frame (301), which is fixedly installed at the top of the frame (1). A fixing plate (302) is installed inside the light-shielding frame (301), and several guide wheels (303) are rotatably connected inside the fixing plate (302). Yarn is wound around the outer wall of the guide wheels (303). The yarn passes back and forth through the interior of the fixed plate (302) under the guidance of several guide rollers (303). Several optical signal detection devices (304) are installed inside the fixed plate (302). The optical signal detection device (304) includes an optical signal transmitter and an optical signal receiver. The optical signal transmitter is fixedly installed on one side of the fixed plate (302), and the optical signal receiver is fixedly installed on the other side of the fixed plate (302). Several sections of yarn are blocked between the optical signal transmitter and the optical signal receiver when they move.

2. The intelligent yarn breakage detection device for a single-sided circular knitting machine according to claim 1, characterized in that: The bottom end of the light-shielding frame (301) is rotatably connected to a sealing cover (305), and the top end of the sealing cover (305) is equipped with a buckle device for limiting the rotation of the sealing cover (305).

3. The intelligent yarn breakage detection device for a single-sided circular knitting machine according to claim 1, characterized in that: The top of the frame (1) is rotatably connected to a guide wheel (4), and the top of the frame (1) is equipped with an automatic tensioning device (5).

4. The intelligent yarn breakage detection device for a single-sided circular knitting machine according to claim 1, characterized in that: The top of the yarn rack (2) is equipped with a take-up drum, and the outer wall of the take-up drum is wound with yarn.

5. A smart yarn breakage stop device for a single-jersey circular knitting machine, employing the smart yarn breakage detection device for a single-jersey circular knitting machine as described in any one of claims 1-4, characterized in that: The shutdown device includes a yarn breakage detection device and a control terminal, which are electrically connected. The control terminal is electrically connected to a power-off device for stopping the single-sided circular knitting machine.

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