A sampling and separating device for detecting chemical short fibers

Abstract

This invention belongs to the field of chemical short fiber technology and provides a sampling and separation device for chemical short fiber detection. The device includes a mechanism box with a feeding conveyor belt inside. A drive roller and two carding opener rollers are mounted on the inner wall of the mechanism box via bearings. A variable frequency motor and a driver are mounted on one side of the mechanism box. A separation and impurity removal plate is located inside the mechanism box, and two sets of connecting slide rods are fixedly connected to the bottom surface of the plate. A vibrating element is fixedly connected to the bottom ends of both sets of connecting slide rods. This invention achieves uniform and stable fiber feeding through the variable frequency motor and drive rollers, allowing the fibers to enter evenly between the two sets of opposing rotating carding opener rollers. Through bidirectional carding, entangled, agglomerated, and clustered fibers that occur during production and stacking are broken up, ensuring thorough and uniform fiber dispersion. This eliminates sample stacking during sampling and avoids the problem of uneven fiber sampling.

Description

Technical Field

[0001] This invention belongs to the field of chemical short fiber technology, and specifically relates to a sampling and separation device for detecting chemical short fibers. Background Technology

[0002] Chemical staple fiber is a basic raw material for the textile and chemical fiber industries. Its fiber length, purity, uniformity, impurity content and other indicators directly determine the quality of subsequent textile products. During the production, warehousing and quality inspection and process debugging of chemical staple fiber, it is necessary to sample and test batches of fiber raw materials.

[0003] Current chemical staple fiber sampling equipment struggles to loosen, disperse, and remove impurities from chemical staple fibers. Furthermore, chemical staple fibers are prone to entanglement, agglomeration, and clumping during production and storage. Direct sampling and testing can lead to sample stacking, uneven testing, and ineffective separation of chemical staple fibers from impurities. Impurities remain inside the fibers, affecting chemical staple fiber testing and failing to meet the requirements for high-precision chemical staple fiber sampling and testing. Therefore, to address these issues, we provide a sampling and separation device for chemical staple fiber testing. Summary of the Invention

[0004] To solve the above technical problems, this invention proposes a sampling and separation device for detecting chemical short fibers.

[0005] The technical solution of this invention is:

[0006] This invention proposes a sampling and separation device for detecting chemical short fibers, comprising a mechanism box, an internal feeding conveyor belt, and a drive roller and two comb opening rollers mounted on the inner wall of the mechanism box via bearings. A variable frequency motor and a driver are mounted on one side of the mechanism box. A separation and impurity removal plate is located inside the mechanism box, with two sets of connecting slide rods fixedly connected to the bottom surface of the separation and impurity removal plate. A vibrating element is fixedly connected to the bottom ends of the two sets of connecting slide rods. An extraction hood is fixedly connected to one side of the mechanism box, and a negative pressure fan is fixedly connected to one side of the extraction hood. Two L-shaped extraction pipes are fixedly connected to both sides of the extraction hood, and two extraction branch pipes are fixedly connected to one side of each of the two L-shaped extraction pipes. One end of each of the two sets of extraction branch pipes penetrates the mechanism box and extends to the top and bottom of the separation and impurity removal plate, respectively, and a blocking grid is fixedly connected to the inner wall of the extraction branch pipe.

[0007] Preferably, the vibrating component includes a vibrating support plate, a dual-axis motor is fixedly installed on the inner wall of the vibrating support plate, an eccentric vibrating block is fixedly installed on both output ends of the dual-axis motor, and two sets of reset springs are fixedly connected to the upper surface of the vibrating support plate, with one end of each set of reset springs fixedly installed on the bottom surface of the mechanism box.

[0008] Preferably, the bottom surface of the mechanism box has two sets of circular openings, and the outer surface of the connecting slide rod is slidably connected to the inner wall of the circular opening.

[0009] Preferably, the upper surface of the mechanism box is provided with a sampling and injection port, one side of the mechanism box is provided with a separation and discharge port, and one end of the separation and impurity removal plate is located inside the separation and discharge port.

[0010] Preferably, one end of the drive roller is installed at the output end of the variable frequency motor, one end of each of the two comb opening rollers is installed at the output end of the driver, and two support rollers are installed on the inner wall of the mechanism box through bearings. The outer surface of the drive roller and the outer surfaces of the two support rollers are all connected to the inner ring of the feed conveyor belt.

[0011] Preferably, a guide baffle is fixedly installed on the inner wall of the mechanism box. The guide baffle is located on one side of the discharge end of the feeding conveyor belt, and the discharge end of the feeding conveyor belt is located above the two comb needle opening rollers. The two comb needle opening rollers rotate in opposite directions.

[0012] Preferably, a controller is fixedly installed on one side of the mechanism box.

[0013] The present invention has the following advantages and effects compared with the prior art:

[0014] (1) The sampling and separation device for chemical short fiber testing can achieve uniform and stable fiber feeding by using a variable frequency motor and drive roller. It can make the fiber evenly enter between two sets of opposing and rotating combing rollers. Through bidirectional combing, the entangled, agglomerated and clustered fibers that occur during production and stacking are broken up, so that the fibers are fully dispersed and evenly distributed, eliminating the phenomenon of sample stacking and accumulation during sampling, and avoiding the problem of uneven fiber sampling.

[0015] (2) The sampling and separation device for chemical short fiber detection uses a dual-axis motor to drive an eccentric vibrating block to generate high-frequency vibration, which can make the fiber roll and loosen fully, and screen off the dust, debris, and short fibers inside the fiber. At the same time, the negative pressure fan, together with multiple sets of extraction pipelines, forms an all-round adsorption airflow, which can extract the impurities after screening, solve the problem that impurities are difficult to separate and mixed inside the fiber during chemical short fiber detection, and then integrate the vibrating screening and negative pressure impurity removal structure to achieve efficient separation of fiber impurities and improve the purity of fiber samples. Attached Figure Description

[0016] Figure 1 This is a front view of the sampling and separation device for detecting chemical short fibers of the present invention;

[0017] Figure 2 This is a frontal cross-sectional view of the sampling and separation device for detecting chemical short fibers according to the present invention.

[0018] Figure 3 This is a bottom view of the sampling and separation device for detecting chemical short fibers according to the present invention.

[0019] Figure 4 This is a side cross-sectional view of the sampling and separation device for detecting chemical short fibers according to the present invention.

[0020] Figure 5 This is a front view of the separation and impurity removal plate in the sampling and separation device for detecting chemical short fibers of the present invention.

[0021] Reference numerals: 1. Mechanism box; 2. Feed conveyor belt; 3. Sampling and injection port; 4. Separation and discharge port; 5. Separation and impurity removal plate; 6. Negative pressure fan; 7. L-shaped extraction pipe; 8. Extraction branch pipe; 9. Reset spring; 10. Controller; 11. Extraction cover; 12. Vibration support plate; 13. Dual-axis motor; 14. Eccentric vibrating block; 15. Circular opening; 16. Connecting slide bar; 17. Driver; 18. Variable frequency motor; 19. Drive roller; 20. Support roller; 21. Comb needle opening roller; 22. Guide baffle; 23. Blocking grid. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, specific embodiments will now be described in further detail. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the invention.

[0023] Example 1:

[0024] like Figures 1-5As shown, this invention provides a sampling and separation device for chemical short fiber detection, including a mechanism box 1. The mechanism box 1 is made of high-strength carbon steel, which has the characteristics of corrosion resistance and non-deformation, and can stably support the long-term operation of various components. An infeed conveyor belt 2 is installed inside the mechanism box 1. The infeed conveyor belt 2 is made of wear-resistant rubber, which is non-slip and resistant to fiber friction wear. A drive roller 19 and two comb needle opening rollers 21 are respectively installed on the inner wall of the mechanism box 1 via bearings. The comb needle opening rollers 21 have high surface hardness of alloy comb needles, which are not easily bent or worn. A variable frequency motor 18 and a driver 17 are respectively installed on one side of the mechanism box 1. The variable frequency motor 18 can adjust the speed through frequency conversion, realizing stepless control of the conveying speed to adapt to the processing needs of different fiber materials. A separation mechanism is installed inside the mechanism box 1. The impurity removal plate 5 is a porous stainless steel plate, which has good air permeability and screening effect and does not easily stick to fibers. Two sets of connecting slide rods 16 are fixedly connected to the bottom surface of the impurity removal plate 5. The bottom ends of the two sets of connecting slide rods 16 are fixedly connected to a vibrating element. An extraction hood 11 is fixedly connected to one side of the mechanism box 1. A negative pressure fan 6 is fixedly connected to one side of the extraction hood 11. The negative pressure fan 6 is a high-pressure centrifugal fan with stable and adjustable negative pressure suction. Two L-shaped extraction pipes 7 are fixedly connected to both sides of the extraction hood 11. Two extraction branch pipes 8 are fixedly connected to one side of each of the two L-shaped extraction pipes 7. One end of each of the two sets of extraction branch pipes 8 passes through the mechanism box 1 and extends to the top and bottom of the impurity removal plate 5, respectively. A blocking grid 23 is fixedly connected to the inner wall of the extraction branch pipe 8 to block fiber material. Specifically, this part of the structure works together to realize the basic functions of feeding, opening and bidirectional impurity removal of the equipment. The variable frequency motor 18, together with the drive roller 19, drives the feeding conveyor belt 2 to feed the material smoothly. The driver 17 provides stable power to the comb opening roller 21, which can pre-open the agglomerated fibers. Combined with the upper and lower arranged extraction branch pipes 8, a full-area negative pressure adsorption zone is formed, which can capture the fine impurities in the fibers and improve the comprehensiveness of impurity removal.

[0025] Furthermore, the vibrating component includes a vibrating support plate 12, which is made of lightweight alloy material, has strong load-bearing capacity and high vibration transmission efficiency. A dual-axis motor 13 is fixedly installed on the inner wall of the vibrating support plate 12. The dual-axis motor 13 adopts a dual-output shaft synchronous drive structure, with uniform operating torque and high stability. An eccentric vibrating block 14 is fixedly installed on each of the two output ends of the dual-axis motor 13. The eccentric vibrating block 14 is made of high-density cast iron, which provides stable centrifugal vibration effect and strong durability. Two sets of return springs 9 are fixedly connected to the upper surface of the vibrating support plate 12. The return springs 9 are made of high-strength spring steel, with good elastic deformation capacity and long fatigue life. One end of each set of return springs 9 is fixedly installed on the bottom surface of the mechanism box 1. The bottom surface of the mechanism box 1 has two sets of circular openings 15, and the outer surface of the connecting slide rod 16 is slidably connected to the inner wall of the circular opening 15. The sliding fit is highly accurate and the probability of jamming is low. Specifically, this vibration structure provides the core power for fiber screening and impurity removal. The dual-axis motor 13 drives the eccentric vibration blocks 14 on both sides to rotate synchronously at high speed, generating a continuous high-frequency centrifugal excitation force. The vibration is transmitted to the separation and impurity removal plate 5 through the vibration support plate 12 and the connecting slide rod 16. With the elastic reset action of the reset spring 9, a stable high-frequency reciprocating vibration effect is formed, which can drive the fibers on the plate surface to continuously roll and loosen, and shake off the impurities wrapped in the fibers. At the same time, the circular opening 15 limits and guides the connecting slide rod 16 to ensure smooth vibration operation.

[0026] Furthermore, the upper surface of the mechanism box 1 is provided with a sampling and feeding port 3, the feeding port diameter is suitable for the feeding of conventional sampling materials, and the operation is convenient. One side of the mechanism box 1 is provided with a separation and discharge port 4, which ensures smooth discharge and is not easy to block. One end of the separation and impurity removal plate 5 is located inside the separation and discharge port 4, so as to achieve precise material discharge. A guide baffle 22 is fixedly installed on the inner wall of the mechanism box 1. The guide baffle 22 is made of smooth stainless steel plate, which can prevent fiber from sticking to the wall and accumulating. The guide baffle 22 is located on one side of the discharge end of the feeding conveyor belt 2, and the discharge end of the feeding conveyor belt 2 is located above the two comb needle opening rollers 21. The two comb needle opening rollers 21 rotate in opposite directions, which can form a counter-combing and opening effect on the fibers. A controller 10 is fixedly installed on one side of the mechanism box 1. The controller 10 is a programmable intelligent control device that can centrally control the start and stop, speed, vibration frequency and other parameters of various electrical components. Specifically, the feeding and guiding structure and the electrically controlled discharge structure enable automated and standardized operation of the equipment. After the raw material is fed into the sampling port 3, it is conveyed by the feeding conveyor belt 2 and precisely guided by the guide baffle 22 to the space between the opposing comb opening rollers 21, avoiding material deviation and leakage, and ensuring that all fibers are opened. At the same time, the controller 10 realizes integrated control of the whole machine, and the parameter adjustment is precise and convenient, reducing human operation errors. The processed pure fibers can be smoothly discharged from the separation outlet 4 along the separation and impurity removal plate 5, improving the sampling efficiency.

[0027] Furthermore, one end of the drive roller 19 is installed at the output end of the frequency converter motor 18, resulting in high coaxiality and low loss in power transmission. One end of each of the two carding opener rollers 21 is installed at the output end of the driver 17. The output end of the driver 17 is connected to the roller shaft of one of the carding opener rollers 21. The ends of the roller shafts of the two carding opener rollers 21 are respectively fixedly equipped with meshing transmission gears. When the equipment is running, the output torque of the driver 17 drives the single-sided carding opener roller 21 to rotate. Relying on the meshing transmission of the two sets of transmission gears, the other set of carding opener rollers 21 is synchronously driven to rotate in the opposite direction, realizing precise counter-rotation of the double rollers. The transmission synchronization is good and the structure is stable, which can uniformly perform carding and opening operations on chemical short fibers. The inner wall of the mechanism box 1 is equipped with two support rollers 20 through bearings. The support rollers 20 have smooth surfaces and low rotational resistance. The outer surfaces of the drive roller 19 and the two support rollers 20 are all connected to the inner ring of the feed conveyor belt 2. Specifically, the transmission structure ensures stable and synchronized feeding and opening actions of the equipment. The variable frequency motor 18 outputs power to drive the drive roller 19 to rotate, which, together with two sets of support rollers 20, supports and tensions the feed conveyor belt 2 and provides auxiliary transmission, so that the feed conveyor belt 2 runs smoothly without deviation or slippage. The conveying speed can be flexibly adjusted according to the fineness and agglomeration of the fiber material.

[0028] Working principle: When the chemical short fiber testing sampling and separation device is used, the chemical short fiber raw material to be tested is first put into the mechanism box 1 from the sampling injection port 3. The fiber raw material falls onto the surface of the feeding conveyor belt 2. The device is started by the controller 10, and the variable frequency motor 18 drives the drive roller 19 to rotate, which drives the feeding conveyor belt 2 to rotate at a uniform speed. After the fiber is conveyed to the end by the feeding conveyor belt 2, it falls between the two sets of comb needle opening rollers 21 under the limiting and guiding action of the guide baffle 22. The driver 17 drives the two sets of comb needle opening rollers 21 to rotate in opposite directions. The comb needle structure combs and breaks up the agglomerated and entangled chemical short fibers in both directions, so that the agglomerated fibers are completely dispersed, ensuring that the fibers are loose and uniform.

[0029] After being opened, the fibers fall freely onto the surface of the separation and impurity removal plate 5. At the same time, the dual-shaft motor 13 and the negative pressure fan 6 are started. The dual-shaft motor 13 drives the eccentric vibrating blocks 14 at both ends to rotate at high speed, generating high-frequency excitation force, which drives the vibrating support plate 12 and the top separation and impurity removal plate 5 to vibrate at high frequency. The reset spring 9 works together to achieve stable reciprocating vibration, so that the fibers are fully rolled and loosened during the vibration process, and the dust, debris, and short fibers wrapped inside the fibers are fully screened and removed.

[0030] The negative pressure fan 6 generates negative pressure suction, which, through the extraction hood 11, the L-shaped extraction pipe 7, and the upper and lower distributed extraction branch pipes 8, performs all-round negative pressure extraction of impurities above and below the separation and impurity removal plate 5, removing various impurities screened out, and achieving efficient purification and separation of fibers. After opening, vibrating screening, and negative pressure impurity removal, the pure loose fibers slide outward along the inclined separation and impurity removal plate 5 and are finally discharged from the separation outlet 4, completing the sampling and separation operation. The obtained fiber samples are uniform, pure, and free of impurities, and can be directly used for subsequent performance testing.

[0031] It should also be noted that, in terms of circuit structure, the drive and control circuits of this invention are common and mature technologies. Those skilled in the art can select appropriate circuit components to build the circuit according to the power requirements and control requirements of the equipment. For the power supply components, common general power supply equipment on the market and the electrical components of this application can be used. These are all common electrical equipment in the prior art. The control circuit can be implemented by those skilled in the art through simple programming. This application will not elaborate further.

[0032] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. All equivalent changes and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A sampling and separation device for detecting chemical short fibers, comprising a mechanism box (1), characterized in that: The mechanism box (1) is equipped with a feeding conveyor belt (2). The inner wall of the mechanism box (1) is equipped with a drive roller (19) and two comb opening rollers (21) respectively through bearings. A variable frequency motor (18) and a driver (17) are respectively installed on one side of the mechanism box (1). The mechanism box (1) is equipped with a separation and impurity removal plate (5). The bottom surface of the separation and impurity removal plate (5) is fixedly connected to two sets of connecting slide rods (16). The bottom ends of the two sets of connecting slide rods (16) are fixedly connected to a vibrating element. A suction hood (11) is fixedly connected to one side of the housing (1). A negative pressure fan (6) is fixedly connected to one side of the suction hood (11). Two L-shaped suction pipes (7) are fixedly connected to both sides of the suction hood (11). Two suction branch pipes (8) are fixedly connected to one side of each of the two L-shaped suction pipes (7). One end of each of the two sets of suction branch pipes (8) passes through the housing (1) and extends to the top and bottom of the separation and impurity removal plate (5). A blocking grid (23) is fixedly connected to the inner wall of the suction branch pipe (8).

2. The sampling and separation device for detecting chemical short fibers according to claim 1, characterized in that: The vibrating component includes a vibrating support plate (12), on the inner wall of the vibrating support plate (12) a dual-axis motor (13) is fixedly installed, and eccentric vibrating blocks (14) are fixedly installed at both output ends of the dual-axis motor (13). Two sets of reset springs (9) are fixedly connected to the upper surface of the vibrating support plate (12), and one end of each set of reset springs (9) is fixedly installed on the bottom surface of the mechanism box (1).

3. The sampling and separation device for detecting chemical short fibers according to claim 1, characterized in that: The bottom surface of the mechanism box (1) is provided with two sets of circular openings (15), and the outer surface of the connecting slide rod (16) is slidably connected to the inner wall of the circular openings (15).

4. The sampling and separation device for detecting chemical short fibers according to claim 1, characterized in that: The upper surface of the mechanism box (1) is provided with a sampling and injection port (3), and one side of the mechanism box (1) is provided with a separation discharge port (4). One end of the separation and impurity removal plate (5) is located inside the separation discharge port (4).

5. The sampling and separation device for detecting chemical short fibers according to claim 1, characterized in that: One end of the drive roller (19) is installed at the output end of the variable frequency motor (18), and one end of each of the two comb opening rollers (21) is installed at the output end of the driver (17). The inner wall of the mechanism box (1) is equipped with two support rollers (20) through bearings. The outer surface of the drive roller (19) and the outer surface of the two support rollers (20) are connected to the inner ring of the feed conveyor belt (2) for transmission.

6. The sampling and separation device for detecting chemical short fibers according to claim 1, characterized in that: The inner wall of the mechanism box (1) is fixedly installed with a guide baffle (22). The guide baffle (22) is located on one side of the discharge end of the conveyor belt (2), and the discharge end of the conveyor belt (2) is located above the two comb needle loosening rollers (21). The two comb needle loosening rollers (21) rotate in opposite directions.

7. The sampling and separation device for detecting chemical short fibers according to claim 1, characterized in that: A controller (10) is fixedly installed on one side of the mechanism box (1).

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