Glass fiber drawing machine capable of automatically breaking yarns

By using an infrared imager and a defect camera to detect cracks and defects in glass fiber filaments, and using a pneumatic pusher to drive a cutter to cut the yarn in a timely manner, the problem of breakage and cracking in traditional fiber drawing machines is solved, thus improving the quality of finished glass fiber filaments.

CN223921308UActive Publication Date: 2026-02-17CHANGSHU DONGYU INSULATED COMPOUND MATERIALS
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Patent Information

Application Number
CN202520520818.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-02-17
Estimated Expiration
2035-03-24

AI Technical Summary

Technical Problem

Traditional glass fiber drawing machines are prone to breakage and cracking during the drawing process, lacking timely detection and cutting mechanisms, which affects the quality of the finished product.

Method used

Infrared imagers and defect cameras are used to detect cracks and defects on the surface of glass fiber filaments. A pneumatic pusher drives a cutter to cut the yarn in a timely manner. The yarn is cooled and lubricated by lubricating rollers and guide rollers to improve detection accuracy.

Benefits of technology

This technology enables timely cutting of glass fiber filaments, improves the quality of finished products, and ensures the stability of the fiber drawing process and the accuracy of testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a glass fiber drawing machine capable of automatically breaking yarns, which relates to the technical field of glass fiber drawing machines and comprises a base and a support plate. A support is arranged on the top face of the base, linear motors are fixed to the left side face and the right side face in the support, the inner side face of a rotor base of each linear motor is connected with the end of the frame, a wire drawing wheel is rotationally installed in the frame, the supporting plate is fixed to the bottom face in the base, and a main motor is arranged on the rear side face of the supporting plate. An output shaft of the main motor is connected with the rear side end of the winding roller, a broken yarn detection unit is arranged on the front side face of the support, and a cooling unit is arranged at the top end of the support. According to the glass fiber drawing machine capable of automatically breaking the yarn, cracks, layering and defects on the surface of a glass fiber yarn can be detected by matching the defect camera with the infrared imager, so that the glass fiber yarn can be timely cut off while being found, and the quality of a finished product of the glass fiber yarn is prevented from being influenced.
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Description

Technical Field

[0001] This utility model relates to the technical field of glass fiber drawing machines, specifically an automatic fiber-cutting glass fiber drawing machine. Background Technology

[0002] Glass fiber is a high-performance inorganic non-metallic material with many varieties. Its advantages include good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength. However, its disadvantages include brittleness and poor wear resistance. It is made from six minerals—pyrophyllite, quartz sand, limestone, dolomite, borocalcite, and boromagnesia—through high-temperature melting, drawing, winding, and weaving processes. The diameter of its single filaments ranges from a few micrometers to over twenty micrometers, equivalent to 1 / 20 to 1 / 5 the diameter of a human hair. Each bundle of fiber consists of hundreds or even thousands of single filaments. Glass fiber is commonly used as a reinforcing material in composite materials, as well as in electrical insulation, thermal insulation, and circuit boards, among other applications in various sectors of the national economy. However, traditional glass fiber is prone to breakage and cracking during the drawing process, which affects the strength and quality of the glass fiber filaments. Existing drawing machines lack detection mechanisms during use, making it difficult to cut broken glass fiber filaments in a timely manner, resulting in poor quality of the finished glass fiber filaments. To address this issue, we propose an automatic yarn-cutting glass fiber drawing machine. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide an automatic fiberglass drawing machine that cuts yarns. It uses a defect camera and an infrared imager to detect cracks, delamination and defects on the surface of the fiberglass filaments. This allows for timely cutting of the filaments upon detection, thus preventing them from affecting the quality of the finished fiberglass filaments and effectively solving the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic fiberglass drawing machine for cutting yarn, comprising a base and a support plate;

[0005] Base: A bracket is provided on the top surface. Linear motors are fixed on the left and right sides inside the bracket. The inner side of the linear motor's moving part is connected to the end of the frame. A drawing wheel is rotatably installed inside the frame. The support plate is fixed to the bottom surface inside the base. A main motor is provided on the rear side of the support plate. The output shaft of the main motor is connected to the rear end of the take-up roller. A yarn breakage detection unit is provided on the front side of the bracket. A cooling unit is provided at the top of the bracket.

[0006] It also includes a controller, which is located on the top surface of the base. The input terminals of the linear motor and the main motor are electrically connected to the output terminal of the controller, and the input terminal of the controller is electrically connected to the output terminal of an external power source.

[0007] The base is placed inside the external furnace. The linear motor is started to adjust the height of the drawing roller, and the main motor is started to drive the winding roller to rotate in conjunction with the drawing roller to draw and wind the glass fiber.

[0008] Furthermore, the yarn breakage detection unit includes a reference plate, a support frame, a main placement frame, a secondary placement frame, an infrared imager, and a defect camera. The support frame is fixed to the front side of the support, and the reference plate is fixed to the rear side of the support. The main placement frame is uniformly fixed inside the support frame, and the secondary placement frame is uniformly fixed to the outer side of the support frame. The defect camera is placed inside the main placement frame, and the infrared imager is placed inside the secondary placement frame. The input terminals of the infrared imager and the defect camera are electrically connected to the output terminal of the controller. The infrared imager and the defect camera can detect cracks, delamination, and defects on the surface of the glass fiber filaments. The installed reference plate can increase the accuracy of the detection, so that yarn breakage can be dealt with in a timely manner when problems are found in the glass fiber filaments.

[0009] Furthermore, the yarn breakage detection unit also includes a knife holder, a cutter, a T-block, a fixed base, a fixed plate, and a pneumatic push rod. Two fixed plates are fixed to the bottom surface of the fixed plate, one on each side. A pneumatic push rod is provided on the front side of the fixed plate, and the rear end of the pneumatic push rod is connected to one end of the front side of the fixed base. A T-block is installed on the front side of the cutter, and the T-block is slidably installed in the T-slot on the rear side of the fixed base. The knife holder is fixed to the bottom end of the front side of the reference plate, and the knife holder corresponds to the position of the cutter. The input end of the pneumatic push rod is electrically connected to the output end of the controller. The T-block is inserted into the T-slot to install the cutter, and the pneumatic push rod is activated to make the cutter cooperate with the knife holder to cut the glass fiber.

[0010] Furthermore, the cooling unit includes a lubricating roller, a connecting plate, a motor, a liquid box, a guide roller, and a roller frame. The liquid box is fixed to the top of the support, and connecting plates are provided on both sides of the liquid box. The motor is mounted on the surface of the connecting plate, and the output shaft of the motor is connected to the end of the lubricating roller. Two roller frames are evenly fixed on the left and right sides of the support. Guide rollers are rotatably installed inside the roller frame. The input end of the motor is electrically connected to the output end of the controller. Starting the motor drives the lubricating roller to rotate. In conjunction with the guide roller, the glass fiber filaments can be guided and lubricated and cooled at the same time.

[0011] Furthermore, the cooling unit also includes a bracket and a cleaning cotton. The bracket is fixed to the front side of the liquid box, and the cleaning cotton is inserted inside the bracket. The cleaning cotton inside the bracket can remove lubricant and impurities from the surface of the glass fiber filaments, thereby improving the accuracy of subsequent testing.

[0012] Furthermore, it also includes an alarm light and a wireless transmitter. The alarm light is fixed on the left side of the bracket, and the wireless transmitter is installed on the front side of the top surface of the base. The input terminal of the alarm light is electrically connected to the output terminal of the controller, and the output terminal of the wireless transmitter is electrically connected to the input terminal of the controller. The alarm light flashes to alert the operator, while the wireless transmitter can transmit the detection results to the operator for viewing in real time.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This automatic yarn-cutting glass fiber drawing machine has the following advantages:

[0014] 1. The infrared imager and defect camera can detect cracks, delamination and defects on the surface of glass fiber filaments. The installed control plate can increase the accuracy of the detection, so that the glass fiber filaments can be broken in time when problems are found.

[0015] 2. The cutter is installed by inserting a T-block into the T-slot. The pneumatic push rod is activated to make the cutter cooperate with the cutter holder to cut the glass fiber. The alarm light flashes to remind the operator, and the wireless transmitter can transmit the detection results to the operator for viewing in real time.

[0016] 3. By starting the motor to drive the lubrication roller to rotate, and working with the guide roller, the glass fiber filaments can be guided and lubricated and cooled at the same time. The cleaning cotton inside the frame can remove the lubricant and impurities on the surface of the glass fiber filaments, thereby improving the accuracy of subsequent testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the cooling unit structure of this utility model;

[0019] Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Base, 2. Yarn breakage detection unit, 21. Comparison plate, 22. Support frame, 23. Main placement frame, 24. Secondary placement frame, 25. Infrared imager, 26. Defect camera, 27. Knife holder, 28. Cutting knife, 29. T-block, 210. Fixing seat, 211. Fixing plate, 212. Pneumatic push rod, 3. Cooling unit, 31. Lubrication roller, 32. Connecting plate, 33. Motor, 34. Liquid box, 35. Guide roller, 36. Roller frame, 37. Bracket, 38. Cleaning cotton, 4. Bracket, 5. Linear motor, 6. Frame, 7. Drawing wheel, 8. Support plate, 9. Main motor, 10. Take-up roller, 11. Alarm light, 12. Wireless transmitter, 13. Controller. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-3 This embodiment provides a technical solution: an automatic fiberglass drawing machine for cutting yarn, including a base 1 and a support plate 8;

[0023] Base 1: A bracket 4 is provided on the top surface. Linear motors 5 are fixed on both the left and right sides inside the bracket 4. The inner side of the moving part of the linear motor 5 is connected to the end of the frame 6. A drawing wheel 7 is rotatably installed inside the frame 6. A support plate 8 is fixed to the bottom surface inside the base 1. A main motor 9 is provided on the rear side of the support plate 8. The output shaft of the main motor 9 is connected to the rear end of the take-up roller 10. A yarn breakage detection unit 2 is provided on the front side of the bracket 4. The yarn breakage detection unit 2 includes a comparison plate 21, a support frame 22, a main placement frame 23, a secondary placement frame 24, an infrared imager 25, and a defect camera 26. The support frame 22 is fixed on the front side of the bracket 4. The comparison plate 21 is fixed on the rear side of the bracket 4. The support frame 22 is fixed to the rear side of the bracket 4. A main placement frame 23 is uniformly fixed, and a secondary placement frame 24 is uniformly fixed on the outer side of the support frame 22. A defect camera 26 is placed inside the main placement frame 23, and an infrared imager 25 is placed inside the secondary placement frame 24. The input terminals of the infrared imager 25 and the defect camera 26 are electrically connected to the output terminal of the controller 13. The infrared imager 25 and the defect camera 26 can detect cracks, delamination, and defects on the surface of the glass fiber filaments. The installed reference plate 21 can increase the accuracy of the detection, so that the glass fiber filaments can be broken in time when problems are found. The broken fiber detection unit 2 also includes a knife holder 27, a cutter 28, a T-block 29, a fixing base 210, a fixing plate 211, and a pneumatic push rod 212. The fixing plate 211 has two The left and right sides are fixed to the bottom surface of the fixing plate 211. The front side of the fixing plate 211 is provided with a pneumatic push rod 212. The rear end of the pneumatic push rod 212 is connected to one end of the front side of the fixing base 210. The front side of the cutter 28 is equipped with a T-shaped block 29. The T-shaped block 29 is slidably installed with the T-shaped groove on the rear side of the fixing base 210. The cutter holder 27 is fixed to the bottom end of the front side of the reference plate 21. The cutter holder 27 and the cutter 28 are positioned correspondingly. The input end of the pneumatic push rod 212 is electrically connected to the output end of the controller 13. The T-shaped block 29 is inserted into the T-shaped groove to install the cutter 28. The pneumatic push rod 212 is activated to make the cutter 28 cooperate with the cutter holder 27 to cut the glass fiber. The top of the bracket 4 is provided with a cooling unit 3. The cooling unit 3 includes a lubricating roller 31. The system includes a connecting plate 32, a motor 33, a liquid box 34, a guide roller 35, and a roller frame 36. The liquid box 34 is fixed to the top of the support 4, and connecting plates 32 are provided on both sides of the liquid box 34. The motor 33 is mounted on the surface of the connecting plate 32, and the output shaft of the motor 33 is connected to the end of the lubrication roller 31. Two roller frames 36 are evenly fixed on the left and right sides of the support 4. The guide roller 35 is rotatably installed inside the roller frame 36. The input end of the motor 33 is electrically connected to the output end of the controller 13. When the motor 33 is started, it drives the lubrication roller 31 to rotate. In conjunction with the guide roller 35, the glass fiber filaments can be guided and lubricated and cooled at the same time. The cooling unit 3 also includes a bracket 37 and a cleaning cotton 38. The bracket 37 is fixed to the front side of the liquid box 34, and the cleaning cotton 38 is snapped into the inside of the bracket 37.The cleaning cotton 38 inside the ejector 37 can remove lubricant and impurities from the surface of the glass fiber filaments, thereby improving the accuracy of subsequent testing;

[0024] The system also includes a controller 13, which is located on the top surface of the base 1. The input terminals of the linear motor 5 and the main motor 9 are electrically connected to the output terminal of the controller 13, and the input terminal of the controller 13 is electrically connected to the output terminal of an external power supply. The base 1 is placed inside the external furnace. The linear motor 5 is started to adjust the height of the drawing wheel 7, and the main motor 9 is started to drive the winding roller 10 to rotate in coordination with the drawing wheel 7 to draw and wind the glass fiber. The system also includes an alarm light 11 and a wireless transmitter 12. The alarm light 11 is fixed on the left side of the bracket 4, and the wireless transmitter 12 is installed on the front side of the top surface of the base 1. The input terminal of the wireless transmitter 12 is electrically connected to the output terminal of the controller 13, and the output terminal of the wireless transmitter 12 is electrically connected to the input terminal of the controller 13. The alarm light 11 flashes to alert the operator, while the wireless transmitter 12 can transmit the detection results to the operator for real-time viewing.

[0025] The working principle of the automatic fiberglass drawing machine provided by this utility model is as follows: First, the device is placed on the bottom of the external furnace. After the furnace melts the glass block, it is drawn into fine filaments. The motor 33 is started to drive the lubrication roller 31 to rotate. The guide roller 35 can guide the glass fiber filaments while lubricating and cooling them. The cleaning cotton 38 inside the frame 37 can remove the lubricant and impurities from the surface of the glass fiber filaments, thereby improving the accuracy of subsequent testing. The linear motor 5 is started to adjust the height of the drawing wheel 7. The glass fiber filaments pass between the two guide rollers 36. The main motor 9 is started to drive the take-up roller 10 to rotate to cooperate with the drawing process. The wire wheel 7 draws and winds the glass fiber. The infrared imager 25 and defect camera 26 can detect cracks, delamination and defects on the surface of the glass fiber. The installed reference plate 21 can increase the accuracy of the detection. When a problem is found in the glass fiber, it can be cut in time. When the glass fiber is broken or a defect is detected, the pneumatic push rod 212 is activated to make the cutter 28 cooperate with the cutter holder 27 to cut the glass fiber. The alarm light 11 flashes to remind the operator, and the wireless transmitter 12 can transmit the detection results to the personnel for viewing in real time.

[0026] It is worth noting that the controller 13 disclosed in the above embodiments is model S7-200, while the infrared imager 25 can be freely configured according to the actual application scenario. It is recommended to use the infrared imager model FL I R-A50. The defect camera 26 can be a defect detection camera model HF9HA-1S, and the wireless transmitter 12 can be a wireless transmitter model WJL-207. The controller 13 controls the operation of the infrared imager 25, defect camera 26, pneumatic push rod 212, motor 33, main motor 9, linear motor 5, alarm light 11, and wireless transmitter 12 using methods commonly used in the prior art.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic fiberglass drawing machine with yarn cutting function, characterized in that: Includes a base (1) and a support plate (8); Base (1): A bracket (4) is provided on the top surface. Linear motors (5) are fixed on the left and right sides inside the bracket (4). The inner side of the moving part of the linear motor (5) is connected to the end of the frame (6). A drawing wheel (7) is rotatably installed inside the frame (6). The support plate (8) is fixed on the bottom surface inside the base (1). A main motor (9) is provided on the rear side of the support plate (8). The output shaft of the main motor (9) is connected to the rear end of the take-up roller (10). A yarn breakage detection unit (2) is provided on the front side of the bracket (4). A cooling unit (3) is provided at the top of the bracket (4). The system also includes a controller (13), which is located on the top surface of the base (1). The input terminals of the linear motor (5) and the main motor (9) are electrically connected to the output terminal of the controller (13), and the input terminal of the controller (13) is electrically connected to the output terminal of an external power source.

2. The automatic yarn-cutting glass fiber drawing machine according to claim 1, characterized in that: The yarn breakage detection unit (2) includes a reference plate (21), a support frame (22), a main placement frame (23), a secondary placement frame (24), an infrared imager (25), and a defect camera (26). The support frame (22) is fixed to the front side of the bracket (4), and the reference plate (21) is fixed to the rear side of the bracket (4). The main placement frame (23) is uniformly fixed inside the support frame (22), and the secondary placement frame (24) is uniformly fixed to the outer side of the support frame (22). The defect camera (26) is placed inside the main placement frame (23), and the infrared imager (25) is placed inside the secondary placement frame (24). The input terminals of the infrared imager (25) and the defect camera (26) are electrically connected to the output terminal of the controller (13).

3. The glass fiber drawing machine with automatic yarn cutting according to claim 2, characterized in that: The yarn breakage detection unit (2) also includes a knife holder (27), a cutter (28), a T-block (29), a fixed base (210), a fixed plate (211), and a pneumatic push rod (212). There are two fixed plates (211) and they are fixed to the bottom surface of the fixed plate (211) on the left and right sides respectively. The front side of the fixed plate (211) is provided with a pneumatic push rod (212). The rear end of the pneumatic push rod (212) is connected to one end of the front side of the fixed base (210). The front side of the cutter (28) is equipped with a T-block (29). The T-block (29) is slidably installed with the T-slot on the rear side of the fixed base (210). The knife holder (27) is fixed to the bottom end of the front side of the reference plate (21). The knife holder (27) and the cutter (28) are positioned correspondingly. The input end of the pneumatic push rod (212) is electrically connected to the output end of the controller (13).

4. The automatic yarn-cutting glass fiber drawing machine according to claim 1, characterized in that: The cooling unit (3) includes a lubricating roller (31), a connecting plate (32), a motor (33), a liquid box (34), a guide roller (35), and a roller frame (36). The liquid box (34) is fixed to the top of the support (4). The liquid box (34) has connecting plates (32) on both sides. The motor (33) is mounted on the surface of the connecting plate (32). The output shaft of the motor (33) is connected to the end of the lubricating roller (31). The roller frame (36) has two rollers that are evenly fixed on the left and right sides of the support (4). The guide roller (35) is rotatably installed inside the roller frame (36). The input end of the motor (33) is electrically connected to the output end of the controller (13).

5. The glass fiber drawing machine with automatic yarn cutting according to claim 4, characterized in that: The cooling unit (3) also includes a bracket (37) and a cleaning cotton (38). The bracket (37) is fixed to the front side of the liquid box (34), and the cleaning cotton (38) is snapped into the inside of the bracket (37).

6. The automatic yarn-cutting glass fiber drawing machine according to claim 1, characterized in that: It also includes an alarm light (11) and a wireless transmitter (12), the alarm light (11) being fixed on the left side of the bracket (4), the wireless transmitter (12) being mounted on the front side of the top surface of the base (1), the input end being electrically connected to the output end of the controller (13), and the output end of the wireless transmitter (12) being electrically connected to the input end of the controller (13).