High-silica glass fiber chopped yarn production equipment

Abstract

The invention discloses high-silica glass fiber chopped yarn production equipment, and relates to the technical field of glass fiber production, the high-silica glass fiber chopped yarn production equipment comprises a support, a chopping assembly and an impurity removal assembly, the chopping assembly comprises a feeding cylinder, a discharging port, a cutting motor, a connecting shaft, a cutting knife and a transmission mechanism, and the impurity removal assembly comprises a vibration screening mechanism and an airflow screening mechanism. The cutting motor drives the connecting shaft to rotate, so that the connecting shaft drives the cutting knife to rotationally cut high-silica glass fibers, the connecting shaft conveys the high-silica glass fibers to the discharge port through the transmission mechanism, and the cutting knife rotationally cuts the high-silica glass fibers to manufacture chopped yarns, so that automatic feeding and cutting are realized; the manufacturing efficiency of the chopped yarns is improved; the cut chopped yarns are subjected to vibration screening through the arranged vibration screening mechanism, the chopped yarns subjected to vibration screening are subjected to airflow screening again through the airflow screening mechanism, chippings doped in the chopped yarns are fully removed through two times of screening, and the quality of the chopped yarns is ensured.

Description

Technical Field

[0001] This invention relates to the field of glass fiber production technology, specifically to a high-silica glass fiber chopped strand production equipment. Background Technology

[0002] High-silica glass fiber chopped strands are widely used in high-end fields such as aerospace and fire-resistant materials due to their high temperature resistance and high strength. Their production process typically includes slitting, chopping, opening, washing, and drying. However, during slitting and chopping, the fibers are prone to generating debris (such as broken fibers and glass powder) due to mechanical shearing forces. If this debris is not effectively removed, it will directly affect the mechanical properties and surface quality of downstream products.

[0003] In existing technologies, high-silica glass fiber chopped strand production equipment mainly focuses on optimizing automated production processes, with few dedicated structures designed for debris removal. Some fiber processing equipment uses airflow sorting or electrostatic separation technology, but these are easily affected by fiber humidity and density, resulting in unstable separation efficiency. Therefore, there is an urgent need for a debris removal device that achieves efficient impurity removal through multiple screenings, thereby improving equipment reliability. Summary of the Invention

[0004] The purpose of this invention is to provide a high-silica glass fiber chopped strand production equipment to overcome the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A high-silica glass fiber chopped strand production device includes a support, and a chopped strand assembly is provided at the upper end of the support. The chopped strand assembly includes a feed cylinder arranged vertically, with an outlet at its lower end. A cutting motor is located on the side of the feed cylinder, and a connecting shaft is located at the output end of the cutting motor. A cutting blade is mounted on the connecting shaft and fits against the end face of the outlet. A transmission mechanism is provided between the feed cylinder and the cutting motor. High-silica glass fibers entering the feed cylinder are conveyed to the outlet through the transmission mechanism and cut by the cutting blade to produce chopped strands. The impurity removal component includes a vibrating screening mechanism located below the discharge port, and an airflow screening mechanism located below the vibrating screening mechanism. Both the vibrating screening mechanism and the airflow screening mechanism are mounted on the support. After the chopped yarn is cut off from the discharge port, it passes through the vibrating screening mechanism and the airflow screening mechanism in sequence to remove impurities multiple times to ensure the quality of the chopped yarn.

[0006] As described above, a protective cover is provided on the outside of the cutting blade, and two sponge blocks are provided inside the protective cover, with a gap between the two sponge blocks.

[0007] The aforementioned transmission mechanism includes two rollers, which are rotatably disposed inside the feed cylinder. Each roller has a gear at one end, and the two gears mesh with each other. One of the gears is fixedly connected to a bevel gear. A bevel gear is also disposed on the connecting shaft, and the two bevel gears mesh with each other.

[0008] As described above, the vibrating screening mechanism includes a screen box, which is mounted on the support by a rubber spring. A vibrating motor is installed at the lower center of the screen box. Two screen plates are installed at the inner center of the screen box, arranged vertically and extending out of the screen box. A first collection frame is installed at the lower inner end of the screen box.

[0009] As described above, the airflow screening mechanism includes a housing, a hopper is provided on one side of the upper end of the housing, an air outlet is provided at the upper end of the side of the housing, a filter plate is vertically provided in the middle of the inner side of the housing, and a second collection frame is provided on the lower side of the end of the housing away from the air outlet.

[0010] As described above, the filter plate is uniformly provided with filter holes, which are arranged at an angle from the air outlet toward the second collection frame.

[0011] The aforementioned airflow sieving mechanism further includes two electrode plates arranged in parallel. The electrode plates are insulated and disposed at the lower end of the inner side of the outer casing. A dust collection plate is insulated on the side of the electrode plates away from the outer casing, and the two electrode plates are respectively connected to the positive and negative terminals of the power supply.

[0012] As described above, the side of the dust collection plate away from the electrode plate is provided with a groove.

[0013] In the above technical solution, the beneficial effects of the present invention are as follows: 1. The present invention uses a cutting motor to drive the connecting shaft to rotate, which in turn drives the cutting blade to rotate and cut high-silica glass fiber. The connecting shaft also conveys high-silica glass fiber to the discharge port through a transmission mechanism and cuts it by the cutting blade to produce chopped strands, thereby achieving automatic feeding and cutting and improving the production efficiency of chopped strands. 2. The present invention uses a vibrating screening mechanism to vibrate and screen the cut short yarn, and then uses an airflow screening mechanism to screen the vibrating and screened short yarn again. The two screenings are to fully remove the debris mixed in with the short yarn and ensure the quality of the short yarn. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a cross-sectional view of a high-silica glass fiber chopped strand production equipment provided in an embodiment of the present invention; Figure 2 A cross-sectional view of a chopped component provided in another embodiment of the present invention; Figure 3 A cross-sectional view of a vibrating screening mechanism (excluding rubber springs) provided in another embodiment of the present invention; Figure 4 A cross-sectional view of an airflow sieving mechanism (excluding the dust collection plate) provided in another embodiment of the present invention; Figure 5 Provided for another embodiment of the present invention Figure 4 A magnified view of a portion of point M.

[0016] Explanation of reference numerals in the attached figures: 1. Support; 2. Shortening assembly; 20. Feed cylinder; 21. Discharge port; 22. Cutting motor; 23. Connecting shaft; 24. Cutting blade; 240. Protective cover; 241. Sponge block; 25. Transmission mechanism; 250. Roller; 251. Gear; 252. Bevel gear; 3. Impurity removal assembly; 30. Vibrating screening mechanism; 300. Screen box; 301. Rubber spring; 302. Vibrating motor; 303. Screen plate; 304. First collection frame; 31. Airflow screening mechanism; 310. Outer shell; 311. Hopper; 312. Air outlet; 313. Filter plate; 314. Second collection frame; 315. Electrode plate; 316. Dust collection plate; 3160. Groove. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "side", "inner", "outer", "one end", "the other end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] like Figures 1-5As shown in the figure, an embodiment of the present invention provides a high-silica glass fiber chopped strand production equipment, including a support 1, and a chopped strand assembly 2 disposed on the upper end of the support 1. The chopped strand assembly 2 includes a feed cylinder 20, which is arranged vertically and has an outlet 21 at its lower end. A cutting motor 22 is arranged on the side of the feed cylinder 20, and a connecting shaft 23 is arranged at the output end of the cutting motor 22. A cutting blade 24 is arranged on the connecting shaft 23 and is attached to the end face of the outlet 21. A transmission mechanism 25 is arranged between the feed cylinder 20 and the cutting motor 22. The high silica glass fiber entering the feed cylinder 20 is conveyed to the outlet 21 through the transmission mechanism 25 and cut by the cutting blade 24 to produce chopped strands. The impurity removal component 3 includes a vibrating screening mechanism 30, which is located below the discharge port 21. An airflow screening mechanism 31 is located below the vibrating screening mechanism 30. Both the vibrating screening mechanism 30 and the airflow screening mechanism 31 are mounted on the support 1. After the chopped yarn is cut off from the discharge port 21, it passes through the vibrating screening mechanism 30 and the airflow screening mechanism 31 in sequence to remove impurities multiple times in order to ensure the quality of the chopped yarn.

[0020] In another embodiment of the present invention, the transmission mechanism 25 includes two rollers 250, which are rotatably disposed in the feed cylinder 20. Each roller 250 has a gear 251 at one end, and the two gears 251 mesh with each other. One of the gears 251 is fixedly connected to a bevel gear 252. A bevel gear 252 is also disposed on the connecting shaft 23, and the two bevel gears 252 mesh with each other. The specific implementation method is as follows: High-silica glass fiber enters the feeding cylinder 20, and the connecting shaft 23 is rotated by the cutting motor 22, which in turn drives the cutting blade 24 to rotate. At the same time, the cutting motor 22 drives the cutting blade 24 to rotate through the connecting shaft 23, and the cutting motor 22 also drives the high-silica glass fiber entering the feeding cylinder 20 to the discharge port 21 through the transmission mechanism 25. After the high-silica glass fiber leaks out of the discharge port 21, it is cut by the cutting blade 24 to make the high-silica glass fiber into chopped yarn. Specifically, while the cutting motor 22 drives the connecting shaft 23 to rotate, the connecting shaft 23 can drive the bevel gear 252 connected to the gear 251 to rotate synchronously through the bevel gear 252 on it. This causes the two gears 251 to mesh and rotate, and then drive the two rollers 250 connected to them to rotate respectively. After the two rollers 250 rotate, they feed the high-silica glass fiber in the feeding cylinder 20, so that the rotating cutting blade 24 can continuously cut the high-silica glass fiber to make chopped yarn.

[0021] In another embodiment of the present invention, a protective cover 240 is provided on the outside of the cutting blade 24, and two sponge blocks 241 are provided inside the protective cover 240, with a gap between the two sponge blocks 241. The specific implementation method is as follows: When the cutting motor 22 drives the cutting blade 24 to rotate through the connecting shaft 23, the cutting blade 24 can rotate and cut the high silica glass fiber exposed at the discharge port 21. After the cutting blade 24 rotates and cuts the high silica glass fiber, it enters the protective cover 240 and enters the gap between the two sponge blocks 241, so that the two sponge blocks 241 wipe and clean the side of the cutting blade 24, avoiding the high silica glass fiber from sticking to the outside of the cutting blade 24 and causing the cutting blade 24 to become dull.

[0022] In another embodiment of the present invention, the vibrating screening mechanism 30 includes a screen box 300, which is mounted on a support 1 by a rubber spring 301. A vibrating motor 302 is provided at the lower middle part of the screen box 300. Two screen plates 303 are provided at the inner middle part of the screen box 300. The two screen plates 303 are arranged vertically and both extend out of the screen box 300. A first collection frame 304 is provided at the lower inner end of the screen box 300. The specific implementation method is as follows: After the high silica glass fiber is cut, it falls into the screen box 300 and is located on the upper end of the screen plate 303. The screen box 300 and the screen plate 303 are driven to vibrate on the rubber spring 301 by the vibration motor 302, so that the screen plate 303 vibrates and screens the short yarn on it. When the short yarn is vibrating and screening, the screen plate 303 removes the debris mixed in with the short yarn for the first time. The screened debris enters the first collection frame 304 for collection. Moreover, the two screen plates 303 can improve the fault tolerance of the individual screen plate 303 and reduce or even avoid qualified short yarn being screened out by the screen plate 303.

[0023] In another embodiment of the present invention, the airflow screening mechanism 31 includes a housing 310, a hopper 311 is provided on one side of the upper end of the housing 310, an air outlet 312 is provided on the upper side of the housing 310, a filter plate 313 is vertically provided in the middle of the inner side of the housing 310, and a second collection frame 314 is provided on the lower side of the end of the housing 310 away from the air outlet 312. The specific implementation method is as follows: An external fan is connected to the air outlet 312. The fan can pump flowing air into the outer casing 310 through the air outlet 312. Thus, the chopped yarn, which has undergone the first impurity removal by the sieve plate 303, falls from the sieve plate 303 into the feed hopper 311. The feed hopper 311 guides and conveys the chopped yarn into the outer casing 310. At this time, when the chopped yarn falls from the feed hopper 311 into the outer casing 310, the fan delivers flowing air into the outer casing 310 through the air outlet 312, so that the flowing air impacts the falling yarn. The chopped yarn is blown, causing small, lightweight debris to travel a greater distance so that it passes through the filter plate 313 and falls into the second collection frame 314 for collection. Meanwhile, the large, heavy chopped yarn falls directly to the bottom of the outer shell 310 or impacts the surface of the filter plate 313 and falls to the bottom of the outer shell 310 under the action of gravity. In other words, when the chopped yarn falls from the hopper 311 into the outer shell 310, the debris mixed in with the chopped yarn is removed a second time by the filter plate 313.

[0024] In another embodiment of the present invention, filter holes are uniformly arranged on the filter plate 313, and the filter holes are arranged at an angle from the air outlet 312 toward the second collection frame 314. The specific implementation method is as follows: When the airflow sieving mechanism 31 removes the debris mixed in the chopped yarn for the second time through the filter plate 313, the filter holes arranged at an angle on the filter plate 313 facilitate the passage of debris with the airflow, which is convenient for the separation of debris and chopped yarn.

[0025] In another embodiment of the present invention, the airflow sieving mechanism 31 further includes two electrode plates 315, which are arranged in parallel. The electrode plates 315 are disposed in an insulated manner at the lower end of the inner side of the outer casing 310. A dust collection plate 316 is disposed insulated on the side of the electrode plates 315 away from the outer casing 310, and the two electrode plates 315 are respectively connected to the positive and negative terminals of the power supply. The specific implementation method is as follows: when the chopped yarn filtered by the filter plate 313 continues to fall inside the outer shell 310, the chopped yarn will pass between the two electrode plates 315. After the two electrode plates 315 are energized, a high voltage electrostatic field is formed, which causes the charged debris to be adsorbed on the dust collection plate 316, thereby achieving deep cleaning.

[0026] In another embodiment of the present invention, a groove 3160 is provided on the side of the dust collection plate 316 away from the electrode plate 315; The specific implementation method is as follows: when charged debris is adsorbed on the dust collection plate 316, the charged debris is temporarily stored through the groove 3160, and the groove 3160 can easily accommodate more charged debris.

[0027] Working principle: High-silica glass fiber enters the feed cylinder 20. The cutting motor 22 drives the connecting shaft 23 to rotate, which in turn drives the cutting blade 24 to rotate. Simultaneously, the cutting motor 22, through the transmission mechanism 25, transports the high-silica glass fiber from the feed cylinder 20 to the outlet 21. The high-silica glass fiber then exits from the outlet 21 and is cut by the cutting blade 24, thus producing chopped strands. Specifically, while the cutting motor 22 drives the connecting shaft 23 to rotate, the connecting shaft 23, through a bevel gear 252 connected to a gear 251, rotates synchronously, causing the two gears 251 to mesh. After the combined rotation, it drives the two rollers 250 connected to it to rotate respectively, so that the two rollers 250 rotate and feed the high silica glass fiber in the feed cylinder 20, so that the rotating cutting blade 24 can continuously cut the high silica glass fiber to make chopped yarn; when the cutting motor 22 drives the cutting blade 24 to rotate through the connecting shaft 23, the cutting blade 24 can rotate and cut the high silica glass fiber exposed at the discharge port 21. After the cutting blade 24 rotates and cuts the high silica glass fiber, it enters the protective cover 240 and enters the gap between the two sponge blocks 241, so that the two sponge blocks 241 wipe and clean the side of the cutting blade 24, preventing the high silica glass fiber from sticking to the outside of the cutting blade 24 and causing the cutting blade 24 to become dull; After being cut, the high-silica glass fiber falls into the sieve box 300 and lands on the sieve plate 303. The vibration motor 302 drives the sieve box 300 and sieve plate 303 to vibrate on the rubber spring 301, causing the sieve plate 303 to vibrate and screen the chopped yarn. During this vibration screening, the sieve plate 303 removes any debris mixed in with the chopped yarn. The screened debris enters the first collection frame 304 for collection. Furthermore, the two sieve plates 303 can improve the tolerance of a single sieve plate 303, reducing or even preventing qualified chopped yarn from being screened by the sieve plate 303. 03 Screening; An external fan is connected to the air outlet 312. The fan pumps flowing air into the outer casing 310 through the air outlet 312. Thus, the chopped yarn, which has undergone the first impurity removal by the screen plate 303, falls from the screen plate 303 into the feed hopper 311. The feed hopper 311 guides and conveys the chopped yarn into the outer casing 310. At this time, as the chopped yarn falls from the feed hopper 311 into the outer casing 310, the fan delivers flowing air into the outer casing 310 through the air outlet 312. This flowing air blows the falling chopped yarn, causing small, lightweight debris to be separated. The moving distance is greater so that the debris passes through the filter plate 313 and falls into the second collection frame 314 for collection. Larger, heavier chopped yarns fall directly to the bottom of the outer casing 310 or impact the surface of the filter plate 313 and then fall to the bottom of the outer casing 310 under gravity. That is, when the chopped yarn falls from the hopper 311 into the outer casing 310, the filter plate 313 performs a second removal of debris mixed in with the chopped yarn. When the airflow screening mechanism 31 performs this second removal of debris mixed in with the chopped yarn through the filter plate 313, the filter plate 31... The inclined filter holes on the 313 facilitate the passage of debris with the airflow, making it easy to separate debris from chopped yarn. In addition, when the chopped yarn filtered by the filter plate 313 continues to fall inside the outer shell 310, the chopped yarn will pass between the two electrode plates 315. After the two electrode plates 315 are energized, a high-voltage electrostatic field is formed, which causes the charged debris to be adsorbed onto the dust collection plate 316, thereby achieving deep cleaning. When the charged debris is adsorbed onto the dust collection plate 316, the charged debris is temporarily stored through the groove 3160, and the groove 3160 can easily collect more charged debris.

[0028] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-silica glass fiber chopped strand production equipment, comprising a support (1), wherein a chopped strand assembly (2) is provided at the upper end of the support (1), characterized in that, The chopped strand assembly (2) includes a feed cylinder (20), which is arranged vertically and has an outlet (21) at its lower end. A cutting motor (22) is provided on the side of the feed cylinder (20), and a connecting shaft (23) is provided at the output end of the cutting motor (22). A cutting blade (24) is provided on the connecting shaft (23), and the cutting blade (24) is attached to the end face of the outlet (21). A transmission mechanism (25) is provided between the feed cylinder (20) and the cutting motor (22). The high silica glass fiber entering the feed cylinder (20) is conveyed to the outlet (21) through the transmission mechanism (25) and cut by the cutting blade (24) to produce chopped strands. The impurity removal component (3) includes a vibrating screening mechanism (30), which is located below the discharge port (21). An airflow screening mechanism (31) is located below the vibrating screening mechanism (30). Both the vibrating screening mechanism (30) and the airflow screening mechanism (31) are located on the support (1). After the chopped yarn is cut off from the discharge port (21), it passes through the vibrating screening mechanism (30) and the airflow screening mechanism (31) in sequence to remove impurities multiple times in order to ensure the quality of the chopped yarn.

2. The high-silica glass fiber chopped strand production equipment according to claim 1, characterized in that, The transmission mechanism (25) includes two rollers (250), which are rotatably disposed in the feed cylinder (20). Each roller (250) has a gear (251) at one end, and the two gears (251) mesh with each other. One of the gears (251) is fixedly connected to a bevel gear (252). The connecting shaft (23) is also provided with a bevel gear (252), and the two bevel gears (252) mesh with each other.

3. The high-silica glass fiber chopped strand production equipment according to claim 1, characterized in that, The cutting blade (24) is provided with a protective cover (240) on the outside, and two sponge blocks (241) are provided inside the protective cover (240), with a gap between the two sponge blocks (241).

4. The high-silica glass fiber chopped strand production equipment according to claim 1, characterized in that, The vibrating screening mechanism (30) includes a screen box (300), which is mounted on the support (1) by a rubber spring (301). A vibrating motor (302) is provided at the lower middle part of the screen box (300). Two screen plates (303) are provided at the inner middle part of the screen box (300). The two screen plates (303) are arranged vertically and both extend out of the screen box (300). A first collection frame (304) is provided at the lower inner end of the screen box (300).

5. The high-silica glass fiber chopped strand production equipment according to claim 1, characterized in that, The airflow screening mechanism (31) includes a housing (310), a hopper (311) is provided on one side of the upper end of the housing (310), an air outlet (312) is provided on the upper side of the housing (310), a filter plate (313) is vertically provided in the middle of the inner side of the housing (310), and a second collection frame (314) is provided on the lower side of the end of the housing (310) away from the air outlet (312).

6. The high-silica glass fiber chopped strand production equipment according to claim 5, characterized in that, The filter plate (313) is uniformly provided with filter holes, which are arranged at an angle from the air outlet (312) toward the second collection frame (314).

7. The high-silica glass fiber chopped strand production equipment according to claim 5, characterized in that, The airflow sieving mechanism (31) further includes two electrode plates (315), which are arranged in parallel. The electrode plates (315) are disposed in an insulated manner on the lower inner side of the outer casing (310). A dust collection plate (316) is disposed insulated on the side of the electrode plate (315) away from the outer casing (310), and the two electrode plates (315) are respectively connected to the positive and negative poles of the power supply.

8. The high-silica glass fiber chopped strand production equipment according to claim 7, characterized in that, The dust collection plate (316) has a groove (3160) on the side away from the electrode plate (315).

Images